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Publication numberCN102194421 A
Publication typeApplication
Application numberCN 201110092127
Publication date21 Sep 2011
Filing date13 Apr 2011
Priority date13 Apr 2011
Also published asCN102194421B
Publication number201110092127.7, CN 102194421 A, CN 102194421A, CN 201110092127, CN-A-102194421, CN102194421 A, CN102194421A, CN201110092127, CN201110092127.7
Inventors尹志刚, 李照华, 王乐康, 石磊, 符传汇, 陈克勇
Applicant深圳市明微电子股份有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Method and equipment for controlling display
CN 102194421 A
Abstract
The embodiment of the invention provides a method for controlling display. The method comprises the following steps that: a main control device receives m data to be displayed of which the display precision is N; the main control device processes each data to be displayed of which the display precision is N into (2N-n) parts and processes the m data to be displayed of which the display precision is N into m*(2N-n) parts according to a data transmission protocol to obtain a sequence of data of which the corresponding number is k (i, j), wherein i is more than and equal to 1 and less than and equal to m, j is more than and equal to 1 and less than and equal to (2N-n), n is more than and equal to 1 and less than and equal to N, n is data precision of each row during actual display, and m is the number of scanning rows of a display screen; the main control device sends the m*(2N-n) parts of display data to a slave device by taking m as a period, wherein the data of which the number is k (i, j) are sequentially sent to the slave device according to an order from 1 to m in a j period; the main control device controls the display screen by a decoding drive unit; and the slave device controls display according to the m*(2N-n) parts of received display data. According to the scheme provided by the invention, the refresh frequency of the display can be effectively improved by dividing the original data into segments and increasing transmission times on the premise of no influence on the precision of the original data, and the method is simple in implementation and efficient.
Claims(16)  translated from Chinese
1. 一种显示控制的方法,其特征在于,包括以下步骤:主控装置接收m个显示精度为N的待显示数据;根据数据传输协议,所述主控装置将每个所述显示精度为N的待显示数据处理为2N_n 部分,将所述m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i,j) 的数据序列,其中,1彡i彡m,1彡j彡2N_n,1彡η彡N,η为实际显示时每行的数据精度,m 为显示屏的行扫描行数;所述主控装置将所述m*2N_n部分数据以m为周期给从机装置发送数据,其中,第j个周期按照1到m的顺序依次发送编号为k(i,j)的数据给所述从机装置,所述主控装置通过译码驱动单元控制显示屏,所述从机装置根据接收的所述2N_n*m部分数据进行显示控制。 1. A method for controlling a display, characterized by comprising the steps of: receiving m a master device to be displayed precision N display data; according to the data transfer protocol, the master control means of each of said display accuracy N to be displayed as 2N_n data processing section, the accuracy of the m N display data to be displayed is m * 2N_n processing section, to give the corresponding numbered k (i, j) of the data sequence, wherein i 1 San San m, 1 San j San 2N_n, 1 San η Pie N, η accuracy of the data line while the actual show, m is the number of scanning lines of the display line; the master device to the m * 2N_n part of the data to m for the period to send data to the slave device, wherein the j-th cycle of the order of 1 m in order to send numbered k (i, j) of data to the slave device, the master device by decoding drive unit Control Display, the slave device for controlling the display based on the received data 2N_n * m section.
2.如权利要求1所述的显示控制的方法,其特征在于,所述数据传输协议包括减权传输协议或同权传输协议。 The display control method according to claim 1, characterized in that the data transmission protocol, including the right with the right to reduce the transmission protocol or transmission protocol.
3.如权利要求2所述的显示控制的方法,其特征在于,当所述数据传输协议为减权传输协议时,所述主控装置将每个所述显示精度为N的待显示数据处理为2N_n部分包括:每部分数据包括N位:取N位完整数据的前η位作为高位,将后(Ν-η)位中的前(Ν-η-1)位补零,最后一位补1或0。 The display control method according to claim 2, characterized in that, when the weight reduction of the data transfer protocol transfer protocol, the master device will display accuracy of each of the N data processing to be displayed as 2N_n section includes: each part of the data include N bits: take the N-bit data integrity before η bit as high, the rear (Ν-η) bits before (Ν-η-1) bit zeros, the last one up 1 or 0.
4.如权利要求3所述的显示控制的方法,其特征在于,所述最后一位补1或0包括:计算所述显示精度为N的待显示数据的后(Ν-η)位的十进制数值K,所述2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 The display control method according to claim 3, characterized in that the last bit 1 or 0 fill comprising: calculating the display accuracy of N data to be displayed after the decimal (Ν-η) bits value K, the last part of the 2Ν_η K in the range of 1 part, the rest is 0.
5.如权利要求2所述的显示控制的方法,其特征在于,当所述数据传输协议为同权传输协议时,所述主控装置将每个所述显示精度为N的待显示数据处理为2Ν_η部分包括:每部分数据包括(η+1)位:取N位完整数据的前η位作为高位,最后一位补1或0。 The display control method according to claim 2, characterized in that, when the data transfer protocol is the same rights transfer protocol, the master device will display accuracy of each of said N display data to be processed as 2Ν_η section includes: each part of the data include (η + 1) bits: take the N-bit data integrity before η bit as high, the last one up 1 or 0.
6.如权利要求5所述的显示控制的方法,其特征在于,所述最后一位补1或0包括:计算所述显示精度为N的待显示数据的后(Ν-η)位的十进制数值K,所述2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 The display control method according to claim 5, characterized in that the last bit 1 or 0 fill comprising: calculating accuracy of the display to be displayed after the N data (Ν-η) decimal value K, the last part of the 2Ν_η K in the range of 1 part, the rest is 0.
7.如权利要求1所述的显示控制的方法,其特征在于,所述从机装置根据接收的所述2N_n*m部分数据进行显示控制还包括:显示屏每行的显示时间为2n个基本时钟周期,在所述2n个基本时钟周期结束后,所述从机装置的驱动脚会有至少一个基本时钟周期的关断;显示的2n个基本时钟周期内,展示的有效时间由所述从机装置接收到的数据决定,其中,所述2n个基本时钟周期内的波形的占空比包括种情况。 The display control method according to claim 1, characterized in that the slave device display control based on the received data 2N_n * m section further includes: display time for each row is 2n basic clock cycle, at the end of the 2n basic clock cycle, the slave device drivers will be at least one foot off the basic clock cycle; 2n basic clock display, showing the effective time from the slave dryer means for receiving data to decide where the duty ratio of 2n basic clock waveform includes cases.
8.如权利要求1所述的显示控制的方法,其特征在于,所述译码驱动单元包括3-8译码器或2-4译码器。 The display control method according to claim 1, characterized in that the drive unit comprises a decoding decoder 3-8 or 2-4 decoder.
9. 一种显示控制的设备,其特征在于,包括主控装置、译码驱动单元以及从机装置,所述主控装置,用于接收m个显示精度为N的待显示数据,根据数据传输协议,将每个所述显示精度为N的待显示数据处理为2N_n部分,将所述m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i,j)的数据序列,其中,1≤i≤m,l≤j≤2N_n, Ι^η^Ν,η为实际显示时每行的数据精度,m为显示屏的行扫描行数;并以m为周期给从机装置发送数据,其中,第j个周期按照1到m的顺序依次发送编号为k(i,j)的数据给所述从机装置,并通过译码驱动单元控制显示屏;所述从机装置,用于根据接收的所述2N_n*m部分数据进行显示控制;所述译码驱动单元,用于接收所述主控装置输入的控制信号,输出信号控制显示屏。 A display control apparatus, characterized by comprising a master device and the slave decoding apparatus drive unit, said master control means for receiving the N m of display accuracy of data to be displayed, according to the data transmission protocol, the accuracy of each of the display of the display data to be handled as N 2N_n section, the accuracy of the m display of the display data to be processed into N m * 2N_n part, to give the corresponding numbered k (i, j) The data sequence, which, 1≤i≤m, l≤j≤2N_n, Ι ^ η ^ Ν, η data precision line while the actual show, m is the number of scanning lines of the display line; and m for the cycle to send data to the slave device, wherein the data j-th cycle in the order of 1 m in order to send a number of k (i, j) to the slave device, and by decoding drive unit control display; the slave means for performing display control based on the received partial data 2N_n * m; driving said decoding unit, for receiving a control signal input of the master unit, the display control output signal.
10.如权利要求9所述的显示控制的设备,其特征在于,所述数据传输协议包括减权传输协议或同权传输协议。 10. The claim 9 display control device, wherein the data transmission protocol, including the right with the right to reduce the transmission protocol or transmission protocol.
11.如权利要求10所述的显示控制的设备,其特征在于,当所述数据传输协议为减权传输协议时,所述主控装置将每个所述显示精度为N的待显示数据处理为2N_n部分包括:每部分数据包括N位:取N位完整数据的前η位作为高位,将后(Ν-η)位中的前(Ν-η-1)位补零,最后一位补1或0。 11. The display of claim 10, wherein the control device, wherein, when the data transmission protocol of the right to reduce the transmission protocol, the master device will display accuracy of each of the N data processing to be displayed as 2N_n section includes: each part of the data include N bits: take the N-bit data integrity before η bit as high, the rear (Ν-η) bits before (Ν-η-1) bit zeros, the last one up 1 or 0.
12.如权利要求11所述的显示控制的设备,其特征在于,所述最后一位补1或0包括:计算所述显示精度为N的待显示数据的后(Ν-η)位的十进制数值K,所述2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 12. The display of claim 11, wherein the control device, wherein the last bit up 1 or 0 comprises: calculating a display accuracy of N data to be displayed after the decimal (Ν-η) bits value K, the last part of the 2Ν_η K in the range of 1 part, the rest is 0.
13.如权利要求10所述的显示控制的设备,其特征在于,当所述数据传输协议为同权传输协议时,所述主控装置将每个所述显示精度为N的待显示数据处理为2Ν_η部分包括:每部分数据包括(η+1)位:取N位完整数据的前η位作为高位,最后一位补1或0。 13. The display of claim 10, wherein the control device, wherein, when the data transmission protocol of the same power transmission protocol, the master device will display accuracy of each of the N data processing to be displayed as 2Ν_η section includes: each part of the data include (η + 1) bits: take the N-bit data integrity before η bit as high, the last one up 1 or 0.
14.如权利要求13所述的显示控制的设备,其特征在于,所述最后一位补1或0包括:计算所述显示精度为N的待显示数据的后(Ν-η)位的十进制数值K,所述2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 14. The display of claim 13, wherein the control device, wherein the last bit up 1 or 0 comprises: calculating a display accuracy of N data to be displayed after the decimal (Ν-η) bits value K, the last part of the 2Ν_η K in the range of 1 part, the rest is 0.
15.如权利要求9所述的显示控制的设备,其特征在于,所述从机装置用于接收的所述2N_n*m部分数据进行显示控制还包括:所述从机装置控制所述显示屏每行的显示时间为2n个基本时钟周期,在所述2n个基本时钟周期结束后,所述从机装置的驱动脚会有至少一个基本时钟周期的关断;显示的2n个基本时钟周期内,展示的有效时间由所述从机装置接收到的数据决定,其中,所述2n个基本时钟周期内的波形的占空比包括种情况。 15. The claim 9 display control device, wherein the means for receiving slave device 2N_n * m data display control section further includes: a slave device controls the display the display time per line is 2n basic clock cycle, at the end of the 2n basic clock cycle, the slave device drivers will have at least one foot off the basic clock cycle; 2n basic clock display , the effective time display by said receiving means to the data from the decision unit, wherein said basic clock 2n duty cycle waveform including the cases.
16.如权利要求9所述的显示控制的设备,其特征在于,所述译码驱动单元包括3-8译码器或2-4译码器。 16. The display of claim 9 wherein the control device, characterized in that the drive unit comprises a decoding decoder 3-8 or 2-4 decoder.
Description  translated from Chinese

显示控制的方法及设备 The display control method and apparatus

技术领域 Technical Field

[0001] 本发明涉及数字通信领域,具体而言,本发明涉及显示控制的方法及设备。 [0001] The present invention relates to the field of digital communications, in particular, the present invention relates to a method and apparatus for controlling the display. 背景技术 Background

[0002] 如何控制LED的亮度,技术发展从开始的模拟调光方式到现在的脉宽调制脉冲调光方式,甚至现在很多应用中可以将模拟调光和脉宽调制脉冲调光结合使用。 [0002] how to control brightness, LED technology from analog dimming start to the current pulse width modulation dimming, even now many applications can be analog dimming and pulse width modulation dimming combination. 模拟调光是指,通过写入的数据,调节流过LED的电流大小,使得LED亮度发生变化。 Analog dimming means by writing data, regulate the flow of current through the LED, so LED brightness changes. 脉宽调制脉冲调光是指,通过在一段时间内,调节LED亮或者灭的时间宽度。 Pulse width modulation dimming means, through a period of time, or adjust the LED light off time width. LED导通的时候,是固定电流驱动,可以通过外置电阻设定;LED关断的时候,没有电流通过。 LED is turned on when a fixed current drive can be set by external resistors; LED off when there is no current. 这样,在一定的时间内的显示效果是灯的亮度发生了变化。 Thus, within a certain time, the display brightness of the lamp changes. 并且在这个固定时间内,灯亮的时间越长,总体效果为灯就越亮。 And within the fixed time, the longer the light, the brighter the overall effect of the lamp. 这样可以达到在一定时间内,对LED进行亮度调节的目的。 This can be achieved within a certain time, for LED brightness adjustment purposes.

[0003] 模拟调光的缺点主要有如下两点:1、改变经过LED的电流,会改变LED的光色, 这样会使得像素的色配增加很多不确定性;2、如果要增加LED的灰度等级,需要高精度的DAC,其线性度和精度受到限制。 [0003] The main disadvantage of analog dimming the following points: 1, to change the current through the LED, it will change the LED light color, it will increase so that the pixel color with a lot of uncertainty; 2, if you want to increase LED gray grade, require high precision DAC, its linearity and accuracy is limited.

[0004] 脉宽调制脉冲调光则完全规避了上述模拟调光的缺点。 [0004] The pulse width modulation dimming completely avoid the shortcomings of the analog dimming. 灯点亮的时候,流过的是固定的电流,光的波长不会变化。 Lights, when flows are constant current, the wavelength of light does not change. 如果需要增加灰度等级,将用于脉宽调制脉冲的基本时钟提速,在原来固定的时间周期内,容许的占空比选择会更多;或者将原来时间周期加长,用原有的基本时钟,也会有更多的占空比选择。 If you need to increase the gray scale, to be used for a basic clock speed of the pulse width modulation pulse, in the original fixed time period, the duty ratio selection will allow more; the original time period or longer, with the original base clock , the duty cycle will have more choices.

[0005] 所以,业内基本都采用脉宽调制脉冲调光的方式对LED调光。 [0005] Therefore, the industry is basically using pulse width modulation dimming LED dimming manner. 不过,脉宽调制脉冲调光也有自身的缺陷。 However, the width modulated pulse dimming also has its own drawbacks. 因为此种调光方法是需要将亮度在一定时间内平均的,所以当LED 的灰度等级较高时,周期较长。 Because this method is the need to adjust the brightness of the light within a certain time-averaged, so when high gradation LED longer period. 这样,LED亮或灭的时候,或者捕捉的时间太短,以至于该时间内接受到的亮灭比,不能很真实的体现原有亮灭比。 Thus, LED on or off when the time is too short or capture that within that time received light off than not it's reflected light off the original ratio. 摄像机等数码摄像产品拍摄画面时, 捕捉时间远远小于人眼对画面的捕捉时间。 Cameras and other digital imaging product screen shot, capture time is much smaller than the human eye to capture screen time. 这样,人眼看起来较清晰的画面,被摄像机或者相机拍摄时,画面可能造成闪烁感,或者说产生条纹。 Thus, the human eye looks clearer picture, is when the camera or camera, the screen may cause light flashes, or streaks.

[0006] 现在人们要求显示画面越来越清晰,画面内容越来越复杂。 [0006] It is now increasingly clear requirements for the display, the screen contents and more complex. 这就是说,画面的数据量越来越大,而同时需要较高的平板显示刷新频率。 That is, increasing the amount of data screen, while requiring a higher flat panel display refresh rate. 这就需要平板显示芯片能以更高的频率生成脉宽调制脉冲信号,并且不影响原有数据的精度。 This requires a flat panel display chip can generate higher frequency pulse width modulated signal, and does not affect the accuracy of the original data.

[0007] 现有的方法中,都是采用系统传送芯片处理的方法。 [0007] conventional methods, and are based on system transmission chip processing methods. 这种方法是将显示的有效时间平均分布在一个脉宽调制基本周期中。 This method is effective time display evenly distributed in a pulse-width modulation basic cycle. 这样可以解决静态屏的上述条纹或者闪烁的问题。 This can solve the fringe or static screen flicker problem. 但是在动态屏中,刷新率主要取决于换行扫描的频率,简称为行扫频率。 But in a dynamic screen refresh rate depending on the frequency of changing the line scan, referred to as row sweep frequency. 依照上述方法, 如果显示一个固定精度或者数据位数的亮度,需要在每一行LED灯完整显示一个脉冲宽度调制基本周期后,才能换行。 In accordance with the method described above, if the display of a fixed number of data bits accuracy or brightness, need to show a pulse width modulation base period in each row LED lights complete only after the wrap. 动态屏的刷新率用如下公式表述: Dynamic screen refresh rate expressed by the following equation:

[0008] [0008]

Figure CN102194421AD00041

[0009] 其中是行扫频率,Fgclk是基本时钟的频率,η是显示数据精度或者显示数据位数,m是扫描行数。 [0009] where is the line frequency sweep, Fgclk base clock frequency, η is the accuracy of the display data or display data bits, m is the number of scanning lines. [0010] 如果沿用原有的方式进行,数据的精度越高,动态屏的刷新率就越低。 [0010] If you use the original manner, the accuracy of the data, the lower dynamic screen refresh rate. 但是刷新率较低,则会影响到拍摄效果。 But the refresh rate is low, it will affect the shooting.

[0011] 因此,有必要提出一种有效的技术方案,在显示数据精度较高时,能有效提高显示的刷新频率。 [0011] Thus, it is necessary to make an effective technical solution, when data showed a higher precision, can effectively improve the refresh rate display.

发明内容 DISCLOSURE

[0012] 本发明的目的旨在至少解决上述技术缺陷之一,特别通过将原始数据分段、增加发送次数,在不影响原有数据的精度的前提下,有效提高显示的刷新频率。 [0012] The present invention is intended to solve at least one of the above-mentioned technical defects, especially the raw data by segment, increase the number of transmissions, the premise does not affect the accuracy of the original data, and effectively improve the display refresh rate.

[0013] 为了达到上述目的,本发明的实施例一方面提出了一种显示控制的方法,包括以下步骤: [0013] In order to achieve the above object, an aspect of embodiments of the present invention, a method of controlling a display, comprising the steps of:

[0014] 主控装置接收m个显示精度为N的待显示数据; [0014] m master device receives a display accuracy of N data to be displayed;

[0015] 根据数据传输协议,所述主控装置将每个所述显示精度为N的待显示数据处理为2N_n部分,将所述m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i, j)的数据序列,其中,1彡i彡m,1彡j彡2N_n,1彡η彡N,η为实际显示时每行的数据精度, m为显示屏的行扫描行数; [0015] According to the data transfer protocol, the master device will display accuracy of each of the N data processing to be displayed as 2N_n section, the accuracy of N m of display data processing to be displayed as part of m * 2N_n to give the corresponding numbered k (i, j) of the data sequence, wherein a San i San m, 1 San j San 2N_n, 1 San η San N, η is the accuracy of the data actually displayed in each row, m is the display the number of rows of scanning lines;

[0016] 所述主控装置将所述m*2N_n部分数据以m为周期给从机装置发送数据,其中,第j 个周期按照1到m的顺序依次发送编号为k(i,j)的数据给所述从机装置,所述主控装置通过译码驱动单元控制显示屏,所述从机装置根据接收的所述2N_n*m部分数据进行显示控制。 [0016] The main means of the m * 2N_n part of the data to m for the cycle to send data to the slave device, wherein the j-th cycle in accordance with the order of 1 to m Send numbered k (i, j) of data to the slave device, the master device by decoding the drive unit control display, the slave device for controlling the display based on the received data 2N_n * m section.

[0017] 本发明的实施例另一方面还提出一种显示控制的设备,包括主控装置、译码驱动单元以及从机装置, [0017] Embodiments of the present invention also provides a further aspect of the display control device, including the master device, decoding drive unit and the slave device,

[0018] 所述主控装置,用于接收m个显示精度为N的待显示数据,根据数据传输协议,将每个所述显示精度为N的待显示数据处理为2N_n部分,将所述m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i,j)的数据序列,其中1彡i彡m,1彡j彡2N_n, Ι^η^Ν,η为实际显示时每行的数据精度,m为显示屏的行扫描行数;并以m为周期给从机装置发送数据,其中,第j个周期按照1到m的顺序依次发送编号为k(i,j)的数据给所述从机装置,并通过译码驱动单元控制显示屏; [0018] The main means for receiving m a display accuracy of display data to be N, according to the data transfer protocol, the accuracy of each of the display data processing N to be displayed as 2N_n part, the m N accuracy of display data to be displayed is m * 2N_n processing section, to give the corresponding numbered k (i, j) of the data sequence, wherein a San i San m, 1 San j San 2N_n, Ι ^ η ^ Ν, η The actual accuracy of the data displayed as each row, m is the number of scanning lines of the display line; and m is the period to send data to the slave device, wherein the j-th cycle in the order of 1 to m transmission number followed k ( i, j) of data to the slave device, and by decoding drive unit control display;

[0019] 所述从机装置,用于根据接收的所述2N_n*m部分数据进行显示控制,其中η为实际显示时每行的数据精度,m为显示屏的行扫描行数; [0019] The slave device for performing display control based on the received partial data 2N_n * m, where η is the accuracy of the data actually displayed in each row, m is the number of scanning lines of the display line;

[0020] 所述译码驱动单元,用于接收所述主控装置输入的控制信号,输出信号控制显示屏。 [0020] The decoder driver unit, means for receiving a control signal input of said master output signal to control the display.

[0021] 本发明提出的上述方案,通过在不影响原有数据的精度的前提下,将原始数据分段、增加发送次数,在不影响原有数据的精度的前提下,能有效提高显示的刷新频率。 [0021] The above scheme proposed by the invention, by the original data without affecting the accuracy of the premise of the original data segments, increasing the number of transmissions, the premise does not affect the accuracy of the original data, which can effectively improve the display of refresh rate. 此外, 本发明提出的上述方案,通过主控装置对原始数据进行预处理,结合译码驱动单元、从机装置的显示控制,实现高刷新率、高数据精度的显示,实现方案简单、高效。 Further, the scheme proposed by the invention, by means of the original master data preprocessing, combining decoding drive unit, control unit from the display unit, high refresh rate, high precision of the data show that implementation is simple and efficient.

[0022] 本发明附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。 Additional aspects and advantages of the invention [0022] This part is given in the following description, the following description will become apparent in part, or learned by practice of the invention.

附图说明 Brief Description

[0023] 本发明上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解,其中: [0023] The present invention described above and / or additional aspects and advantages of the drawings from the following description of embodiments will become apparent and easy to understand, including:

[0024] 图1为控制系统示意图; [0024] FIG. 1 is a schematic diagram of the control system;

[0025] 图2为现有方法的系统波形示意图; [0025] FIG. 2 is a waveform schematic diagram of the system of the conventional method;

[0026] 图3为刷新率较低时拍摄的图像出现条纹示意图; [0026] FIG. 3 is a picture taken at lower refresh rate streaks schematic;

[0027] 图4为本发明实施例显示控制方法的流程图; [0027] FIG. 4 is a flowchart illustrating the invention display control method of implementation;

[0028] 图5为本发明实施例显示控制设备的结构示意图; [0028] FIG. 5 shows the structure of an exemplary schematic diagram of the control device;

[0029] 图6为本发明实施例主控装置将数据处理后输出示意图; [0029] FIG. 6 is a schematic view of the invention after example master device outputs data processing implementation;

[0030] 图7为本发明实施例从机装置输出示意图; [0030] FIG. 7 embodiment of the present invention, a schematic diagram of the slave unit output;

[0031] 图8为与传统方法相比本发明译码单元频率增大示意图; [0031] FIG. 8 is a schematic view of the increase compared with the conventional method of the present invention, the frequency of the decoding unit;

[0032] 图9为刷新率高时拍摄的图像显示正常示意图。 [0032] FIG. 9 is a high image refresh rate when shooting appears normal Fig.

具体实施方式 DETAILED DESCRIPTION

[0033] 下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。 [0033] Embodiments of the present invention will be described in detail below, an exemplary embodiment of the embodiment shown in the accompanying drawings, throughout which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. 下面通过参考附图描述的实施例是示例性的,仅用于解释本发明,而不能解释为对本发明的限制。 The following examples with reference to the accompanying drawings are exemplary for explaining the present invention only, and not to be construed as limiting the present invention.

[0034] 现有的方法中,都是采用系统传送芯片处理的方法,示意图如图1所示,主控装置输出信号A、B、C控制译码驱动单元,控制译码驱动单元输出信号控制显示屏;从机装置根据主控装置输入的数据进行显示控制。 [0034] The conventional methods are transmitted using the system chip processing method, shown in Figure 1, the master device output signal A, B, C control decoding drive unit, control decoder output signal to control the driving unit screen; slave device display control device according to the data input of the master. 这种方法是将显示的有效时间平均分布在一个脉宽调制基本周期中。 This method is effective time display evenly distributed in a pulse-width modulation basic cycle. 这样可以解决静态屏的上述条纹或者闪烁的问题。 This can solve the fringe or static screen flicker problem. 但是在动态屏中,刷新率主要取决于换行扫描的频率,简称为行扫频率。 But in a dynamic screen refresh rate depending on the frequency of changing the line scan, referred to as row sweep frequency. 如图2所示。 As shown in Figure 2. 主控装置接收到显示数据后,根据显示数据的灰度等级,来调整译码驱动单元的输入信号。 After the master device receives the display data, in accordance with gradation display data, decoding the input signal to adjust the drive unit. 图2所示图中,C信号是译码驱动单元的最大时间长度输入,其频率代表了一个完整扫描频率。 Shown in Figure 2, C is the maximum time length of the input signal decoding drive unit, which represents a complete frequency scan frequency.

[0035] 依照上述方法,如果显示一个固定精度或者数据位数的亮度,需要在每一行LED 灯完整显示一个脉冲宽度调制基本周期后,才能换行。 [0035] In accordance with the method described above, if the display of a fixed number of data bits accuracy or brightness, you need to complete each line of LED lights to display a pulse width modulated basic cycle before wrapping. 这样,动态屏的刷新率用如下公式表述: Thus, the dynamic screen refresh rate expressed by the following equation:

_6] Fframe=^-; _6] Fframe = ^ -;

[0037] 其中是行扫频率,Fgclk是基本时钟的频率,η是显示数据精度或者显示数据位数,m是扫描行数。 [0037] where is the line frequency sweep, Fgclk base clock frequency, η is the accuracy of the display data or display data bits, m is the number of scanning lines.

[0038] 假设显示数据精度n = 12,m = 8,那么这是一个8扫的灰度数据精度为12级的显示屏。 [0038] assumed that the display data precision n = 12, m = 8, then this is a gray 8 scan data accuracy 12 display. 图2中所示每一行的数据Dl〜D8的数据长度为12位,而每一行完整的时间为2n =4096个基本时钟GCLK,其中LED灯点亮的有效时间或占空比是由数据决定的。 Shown in each row 2 data Dl~D8 data length is 12, and each row full time 2n = 4096 basic clock GCLK, wherein the effective time or duty cycle of LED lights is determined by the data a. 显示屏从第1行开始显示,到第8行显示结束,所用的时间为4096*8 = 32768个GCLK。 Display begin to show from the first row to the eighth row displays the end of the time taken for the 4096 * 8 = 32768 GCLK. 应用中,采用Fgclk的频率为16. 7MHz, C信号的频率为: Application, frequency of use Fgclk 16. 7MHz, frequency C signal is:

Γ Ί Γ \6.1MHz …υ Γ Ί Γ \ 6.1MHz ... υ

[0039] Fc= 2l2*8 =510Ηζ。 [0039] Fc = 2l2 * 8 = 510Ηζ.

[0040] 这样,数据的精度越高,动态屏的刷新率就越低。 [0040] Thus, the accuracy of the data, the lower dynamic screen refresh rate. 譬如说数据精度是16比特的,即η = 16,采用FeaK的频率为16. 7MHz,8行扫描屏,即m = 8,那么Fftame = 31. 8Hz。 For instance, data accuracy is 16 bits, ie η = 16, the frequency of use FeaK 16. 7MHz, 8 line scan screen, that is m = 8, then Fftame = 31. 8Hz.

[0041] 图2中,Ll〜L8是8扫屏中某连续8行LED灯的显示情况,由某一个芯片(从机装置)的同一个驱动脚驱动。 [0041] FIG. 2, Ll~L8 8 is a graph showing the case of a continuous sweep screen LED lamp 8 rows by one chip (slave apparatus) of the same drive foot drive. 主控装置发送数据的顺序为Dl —D2 —......D8。 Order the master device sends data to Dl -D2 -...... D8. 从机装置输出的低电平为し0灯关闭丄0点亮的顺序依次为第ー行,第ニ行,......,第八行。 From the low output of the device is shi machine lights off Shang 0 0 lit ー order of the first row, row ni, ......, the eighth row. 在图 In FIG.

示し1〜し8内,存储的数据决定其点亮的时间。 Shi shi 1 ~ 8 illustrates the data storage to determine their lighting time.

[0042] 以11= 12为例,因为需要显示12比特的数据精度,所以在锋个换行时间内,必须发送4096( = 2i2)个600(周期。 [0042] In 11 = 12, for example, because of the need to display data precision 12-bit, so a change in the front line of time, you must send 4096 (= 2i2) a 600 (cycle.

[0043] 在图示波形中,刷新率可以简单的用如下公式表示: [0043] In the illustrated waveform, the refresh rate can simply use the following formula:

Figure CN102194421AD00071

[0045] 其中n是数据精度位数,m是动态屏行扫数。 [0045] where n is the number of bits of data accuracy, m is the number of dynamic screen row sweep.

[0046] 譬如上例中,需要显示12比特的数据精度,8扫动态屏,6〔0(的频率为31. 25MHz, [0046] For example, in the above example, we need to display data precision 12-bit and 8 scan dynamic screen, 6 [0 (frequency of 31. 25MHz,

那么使用此方法,极限的显示刷新率为: So using this method, the limit of the display refresh rate:

Figure CN102194421AD00072

[0048] 应用中,因为换行时需要保留消隐时间(即两组4096个GCLK的间隔),所以显示刷新率实际约为900Hz。 [0048] applications, because you want to keep your lines blanking interval (ie, two 4096 GCLK intervals), the display refresh rate is actually about 900Hz. 如果想继续提升刷新率,只有通过降低数据精度或减少行扫行数的方式。 If you want to continue to enhance the refresh rate, only by reducing the accuracy of the data or decrease the number of lines in rows sweep. 前者会使得显示效果不佳,人眼能够觉察到该细微差别;后者使得成本增加,8扫描变4扫描,芯片数量提升1倍。 The former will make the poor display, the human eye can perceive the nuances; the latter increased costs, 8 Streak 4 scan, the number of chips increased by 1 times. 显然,上述两种情况都存在缺陷不可行。 Obviously, both cases are flawed feasible.

[0049] 刷新率较低,会影响到拍摄效果,如图3所示。 [0049] refresh rate is low, it will affect the shooting, as shown in FIG. 为了实现本发明之目的,本发明实施例提出了ー种显示控制的方法,包括以下步[0050] In order to achieve the object of the present invention, an embodiment of the present invention proposes a method ー kinds of display control, comprising the steps [0050]

骤: Steps of:

[0051] [0051]

[0052]主控装置接收m个显示精度为N的待显示数据; [0052] m master device receives a display accuracy of N data to be displayed;

根据数据传输协议,所述主控装置将锋个所述显示精度为N的待显示数据处理为2N_n部分,将所述m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i, j)的数据序列,其中,1 くi くm, 1 くj く2N_n, 1 くn くN,n为实际显示时锋行的数据精度, m为显示屏的行扫描行数; According to the data transfer protocol, the master device to the front of said display accuracy of N to be displayed as 2N_n data processing section, the accuracy of N m of display data processing to be displayed as m * 2N_n part, to give the corresponding NO k (i, j) of the data sequence, where 1 ku ku i m, 1 ku ku j 2N_n, 1 ku ku n N, n is the actual accuracy of the data displayed in the front row, m is the display of line scan lines Number;

[0053] 所述主控装置将所述m*2N_n部分数据以m为周期给从机装置发送数据,其中,第j 个周期按照1到m的顺序依次发送编号为k(i,j)的数据给所述从机装置,所述主控装置通过译码驱动单元控制显示屏,所述从机装置根据接收的所述/-n*m部分数据进行显示控制。 [0053] The main means of the m * 2N_n part of the data to m for the cycle to send data to the slave device, wherein the j-th cycle in accordance with the order of 1 to m Send numbered k (i, j) of data to the slave device, the master device by decoding the drive unit control display, the display control the slave device based on the received / -n * m part of the data.

[0054] 如图4所示,为本发明实施例显示控制的方法流程图,包括以下步骤: [0054] As shown in Figure 4, a display control method according to the present invention, a flow chart, comprising the steps of embodiment:

[0055] SllO :主控装置接收显示精度为N的待显示数据。 [0055] SllO: the master device receives the display accuracy N of data to be displayed.

[0056] 在步骤SllO中,主控装置接收到完整ー巾贞的原始数据,锋行的数据位数为N,即主控装置接收m个显示精度为N的待显示数据。 [0056] In step SllO, the main control unit receiving a complete ー towel Zhen raw data, the median front line is N, that is, the master device receives N m of display accuracy of data to be displayed. 如果显示屏是m行扫描的动态屏,譬如是8 行扫描的动态屏,那么m = 8;特殊的,如果是窬态屏,此时m=l。 If the display panel is a dynamic m scanning, such scanning is dynamic screen 8, then m = 8; particular, if the state is the hole in a wall panel, when m = l. 对于m行扫描的动态屏, 因为主控装置需要在锋个扫描周期内,共发送m次数据,对应到显示屏的第1行至第m行的LED灯。 For dynamic screen m line scan because the master device needs a scan in the front, it was sent m secondary data corresponding to the display of the first row to the m-th row of LED lights. 窬态屏在锋个扫描周期内,仅发送1次数据。 State hole in a wall panel in the front scan cycle, data is sent only once.

[0057] 由刷新率和基本时钟(GCLK)时间决定了1行扫描的时间,选取锋1行的完整周期是2"*T_,即1行要显示2"个T_时间长度的占空比,且有n くN, n是显示数据精度或者显示数据位数。 [0057] by the refresh rate and the base clock (GCLK) time determines the time to scan one line, select the full cycle of the front row is 2 "* T_, namely a row to display 2" length of time the duty cycle of a T_ and there are n ku N, n is a graph showing the accuracy of the data or display data bits.

[0058] S120 :主控装置将显示精度为N的待显示数据进行数据分段。 [0058] S120: the master device will display accuracy of data to be displayed as the N data segments.

[0059] 在步骤S120中,根据数据传输协议,主控装置将锋个显示精度为N的待显示数据处理为2N_n部分,主控装置将m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i,j)的数据序列,其中1彡i彡m,1彡j彡2N_n,1彡η彡N。 [0059] In step S120, according to the data transmission protocol, a master device to the front display accuracy N to be displayed as 2N_n data processing section, the master device will display the accuracy of the m N to be processed as the display data m * 2N_n part, to give the corresponding numbered k (i, j) of the data sequence, wherein a San i San m, 1 San j San 2N_n, 1 N. San San η

[0060] 作为本发明的实施例,数据传输协议包括减权传输协议或同权传输协议。 [0060] as the embodiment of the present invention, the data transmission protocol includes the right to reduce the transmission protocol or the same rights transfer agreement.

[0061] 数据的传输一般采用二进制的方式进行。 [0061] transmission of data is generally binary manner. 位置不同代表的权位不同,二进制的权为2,也就是说高位是相邻低位的2倍。 Right place at different positions on behalf of different binary weights of 2, that is adjacent to the high low of 2 times. 在本发明中,减权传输协议和同权传输协议根据以下原则定义:m组精度为η的数据,如果按照一组一组的顺序发,那么因为相邻位数据的权位递减,所以称为减权数据传输;如果按照同权位的顺序发送,譬如说将m个最高位发送完成后发送m个次高位,因为每次发送数据都是同权位的,所以称为同权数据传输。 In the present invention, the right to reduce the transmission protocol and with the right transport protocol defined according to the following principles: m Group accuracy η data, according to the order of a group of a group of hair, then the right place because of decreasing adjacent bits of data, so called for the right to reduce data transmission; if the order is sent with the right bit, say the m most significant bits to transmit the transmission sub-m high is complete, because every time the data is sent with the right position, so called with the right data transmission .

[0062] 具体而言,当数据传输协议为减权传输协议时,主控装置将每个显示精度为N的待显示数据分为2N_n部分包括: [0062] Specifically, when the data transmission protocol of the right to reduce the transmission protocol, the master device will display accuracy of each N data to be displayed into 2N_n section includes:

[0063] 每部分数据包括N位:取N位完整数据的前η位作为高位,将后(Ν_η)位中的前(Ν-η-1)位补零,最后一位补1或0。 [0063] Each section includes an N-bit data: take the N-bit data integrity before η bit as high, the rear (Ν_η) bits before (Ν-η-1) bit zeros, the last one up 1 or 0.

[0064] 最后一位补1或0包括: [0064] Finally, a supplement of 1 or 0 include:

[0065] 计算显示精度为N的待显示数据的后(Ν-η)位的十进制数值K, [0065] Calculations show that the accuracy of N after the data to be displayed (Ν-η) decimal value K,

[0066] 2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 The last one [0066] 2Ν_η portion has a value of 1 K portions, and the rest is 0.

[0067] 当数据传输协议为同权传输协议时,主控装置将每个显示精度为N的待显示数据分为2Ν_η部分包括: [0067] When the data transfer protocol with the right transport protocol, the master device will display accuracy of each N data to be displayed into 2Ν_η section includes:

[0068] 每部分数据包括(η+1)位:取N位完整数据的前η位作为高位,最后一位补1或0。 [0068] Each part of the data include (η + 1) bits: take the N-bit data integrity before η bit as high, the last one up 1 or 0.

[0069] 最后一位补1或0包括: [0069] Finally, a supplement of 1 or 0 include:

[0070] 计算显示精度为N的待显示数据的后(Ν-η)位的十进制数值K, [0070] Calculations show that the accuracy of N after the data to be displayed (Ν-η) decimal value K,

[0071] 2Ν_η部分的最后一位中有K个部分取值为1,其余部分取值为0。 The last one [0071] 2Ν_η portion has a value of 1 K portions, and the rest is 0.

[0072] S130 :主控装置通过译码驱动单元控制显示屏,从机装置根据接收的数据进行显示控制。 [0072] S130: the master device controls the display by decoding the drive unit, the slave device for controlling the display based on the received data.

[0073] 在步骤S130中,主控装置将m*2N_n部分数据以m为周期给从机装置发送数据,其中,第j个周期按照1到m的顺序依次发送编号为k(i,j)的数据给从机装置,主控装置通过译码驱动单元控制显示屏,从机装置根据接收的2N_n*m部分数据进行显示控制,其中η为实际显示时每行的数据精度,m为显示屏的行扫描行数。 [0073] In step S130, the main control device m * 2N_n part of the data to m for the cycle to send data to the slave device, wherein the j-th cycle in accordance with the order of 1 to m Send numbered k (i, j) data to the slave device, the master device by decoding drive unit control display, slave display control device according to 2N_n * m portion of the data received, in which each row of data precision η when actually displayed, m to display The number of scan lines lines.

[0074] 即:对于每帧数据的显示,主控装置共发送2N_n*m次数据。 [0074] That is: to display each frame of data, the master device to send a total 2N_n * m secondary data. 对于单个LED灯点,在每帧数据显示周期(即行扫周期)内,共展现2N_n次占空比,或者说是经历2N_n次行扫。 For a single LED light points in each frame of data displayed in the cycle (ie a row sweep period), a total show 2N_n times the duty cycle, or is experiencing 2N_n second row sweep.

[0075] 对每行扫描时,主控装置在进行某1行数据的发送时,数据的长度根据主从装置的数据传输协议确定。 [0075] When each line scan, the master device during a 1-line data is sent, the length of the data from the device to determine the data transfer protocol in accordance with the Lord.

[0076] 每一次主控装置发送的数据大小,是取N位完整数据的前η位作为高位,根据不同的数据传输协议, [0076] Each time the master device transmits the data size, is to take place before the η N-bit data integrity as high, according to different data transmission protocol,

[0077] 如果采用传统的逐权递减协议,保持数据长度为N。 [0077] if the traditional rights by diminishing agreement to keep the data length is N. 新数据的前η位与N位完整数据的前η位相同。 Η bit before the new data with N-bit bit before η same data integrity. 最后一位(最低位)是0还是1,取决于N位完整数据的低(Ν-η)位。 The last (least significant bit) is 0 or 1, depending on the low (Ν-η) Bit N bit data integrity. 如果N位完整数据的低(Ν-η)位数据代表的数值是十进制的K,那么主控装置发送的2Ν_η次(η+1)位数据中,最低位是1的个数就是K,最低位是0的个数就是。 If the value N-bit data integrity Low (Ν-η) bits of data represented in decimal K, then 2Ν_η times (η + 1) bits of data sent by the master device, the lowest bit is the number 1 is K, the lowest bit is 0 the number is. 介于前η位和最后1位的数据,采取补零的方式。 Between former η bit and the last one of the data, take up with zeros.

[0078] 如果采用同权传输协议,数据长度为(η+1)位。 [0078] If you use the same power transmission protocol, data length (η + 1) bits. 新数据的前η位与N位完整数据的前η位相同。 Η bit before the new data with N-bit bit before η same data integrity. 对于二进制数据来说,最后一位(最低位)是0还是1,取决于N位完整数据的低(Nn)位。 For binary data, the last bit (LSB) is 0 or 1, depending on the N-bit low (Nn) bits data integrity. 如果N位完整数据的低(Nn)位数据代表的数值是十进制的K,那么主控装置发送的2N_n次(n+1)位数据中,最低位是1的个数就是K,最低位是0的个数就是。 If a complete N bit data low (Nn) bit data is represented by decimal values K, then 2N_n times (n + 1) the master device transmits the bit data, the number 1 is the least significant bit is K, the least significant bit is 0 The number is.

[0079] 因此,对于完整一帧的N位完整数据,每行显示时间周期为2η*Τ(其中η彡N), m行扫描的动态屏,主控装置需要发送: [0079] Thus, the N-bit data integrity of a complete frame, for each line of the display time period is 2η * Τ (wherein η San N), dynamic screen, the master device needs to send the scan lines m:

[0080] 1)发送数据的次数:2N_n*m次数据; The number of [0080] 1) Send data: 2N_n * m secondary data;

[0081] 2)数据的长度:根据传输协议不同而确定,传统传输方法,数据位为N位;同权传输协议位数为(n+1); Length [0081] 2) the data: Depending on the transport protocol determined, a conventional transmission method, data bits to N bits; with the right transport protocol median (n + 1);

[0082] 3)数据的大小:N位完整数据的前η位作为高位,最后一位(最低位)补1的个数等于N位完整数据的低(Nn)位数据代表的数值(十进制的K),补0的个数等于。 Former η value N bits data integrity as high, the last (least significant bit) complement number of 1 or N-bit data integrity Low (Nn) bits of data representative of the (decimal: the size of the [0082] 3) data K), equal to the number of 0s.

[0083] 具体而言,译码驱动单元包括但不限于是3-8译码器。 [0083] Specifically, the decoder driving unit include, but are not limited to 3-8 decoder. 例如为2-4译码器;此时, 主控装置输出的控制信号为两个。 2-4, for example, a decoder; At this time, the control signal output from the main control means is two. 此外,还可以使用其他类似的译码器单元。 In addition, you can use other similar decoder unit.

[0084] 从机装置根据接收的2N_n*m部分数据进行显示控制还包括: [0084] The slave device for controlling the display based on the received data 2N_n * m section further comprises:

[0085] 显示屏每行的显示时间为2n个基本时钟周期,在2"个基本时钟周期结束后,从机装置的驱动脚会有至少一个基本时钟周期的关断;此要求的作用是避免LED显示屏出现“电流消隐”现象。 [0085] The display shows the time of each row 2n basic clock cycle after the end of the two "basic clock cycle, the slave device drivers will be at least one foot off the basic clock cycle; the role of this requirement is to avoid LED display shows "current blanking" phenomenon.

[0086] 此外,在显示的2n个基本时钟周期内,展示的有效时间由从机装置接收到的数据决定,其中,2n个基本时钟周期内的波形的占空比包括种情况,即能展示占空比0、 1/2\ (1+1)/2".....1 一共(2n+l)种情况。 [0086] In addition, in the basic 2n clock display effective time display is determined by the slave device receiving the data, wherein, 2n basic clock duty cycle waveform including cases, which can demonstrate Duty Cycle 0, 1/2 \ (1 + 1) / 2 "..... 1 total (2n + l) case.

[0087] 本发明实施例另一方面还提出了一种显示控制的设备100,包括主控装置110、译码驱动单元130以及从机装置120。 Example [0087] Another aspect of the present invention proposes a display control device 100 includes a master device 110, decoding drive unit 130 and the slave device 120.

[0088] 其中,主控装置110,用于接收m个显示精度为N的待显示数据,根据数据传输协议,将每个显示精度为N的待显示数据处理为2N_n部分,即是将m个显示精度为N的待显示数据处理为m*2N_n部分,得到对应编号为k(i,j)的数据序列,其中,1彡i彡m,1彡j彡2N_n, Ι^η^Ν,η为实际显示时每行的数据精度,m为显示屏的行扫描行数;并以m为周期给从机装置120发送数据,其中,第j个周期按照1到m的顺序依次发送编号为k(i,j)的数据给从机装置120,并通过译码驱动单元130控制显示屏。 [0088] wherein the master device 110, a display for receiving m N accuracy data to be displayed, according to the data transmission protocol, the accuracy of each of the display data to be displayed as the N processing as 2N_n part, that is, the m Display accuracy N to be displayed as m * 2N_n data processing section, to obtain the corresponding numbered k (i, j) of the data sequence, wherein a San i San m, 1 San j San 2N_n, Ι ^ η ^ Ν, η The actual accuracy of the data displayed as each row, m is the number of scanning lines of the display line; and from 120 m for the period to the data transmitter apparatus, wherein the j-th cycle in the order of 1 to m transmission number followed by k (i, j) of data to the slave device 120, and 130 controls display by decoding the drive unit.

[0089] 主控装置110接收到完整一帧的原始数据,数据位数为N。 [0089] the main control unit 110 receives the raw data of a complete frame, the data bits is N. 如果显示屏是m行扫描的动态屏,譬如是8行扫描的动态屏,那么m = 8 ;特殊的,如果是静态屏,此时m = 1。 If the display panel is a dynamic m scanning, such scanning is dynamic screen 8, then m = 8; particular, if the static screen, then m = 1. 对于m行扫描的动态屏,因为主控装置110需要在每个扫描周期内,共发送m次数据,对应到显示屏的第1行至第m行的LED灯。 For dynamic screen m line scan because the master device 110 needs during each scan, the data were sent m times corresponding to the display of the first row to the m-th row of LED lights. 静态屏在每个扫描周期内,仅发送1次数据。 Static screen in each scan cycle, data is sent only once.

[0090] 由刷新率和基本时钟(GCLK)时间决定了1行扫描的时间,选取每1行的完整周期是2n*T,即1行要显示2η个Τ时间长度的占空比,且有η彡N,η是显示数据精度或者显示数据位数。 [0090] by the refresh rate and the base clock (GCLK) time determines the time to scan one line, select the full cycle of each line is 2n * T , that is one line 2η a Τ To display the length of time the duty cycle, and there η San N, η is the accuracy of the display data or display data bits.

[0091] 作为本发明的实施例,数据传输协议包括减权传输协议或同权传输协议。 [0091] as the embodiment of the present invention, the data transmission protocol includes the right to reduce the transmission protocol or the same rights transfer agreement.

[0092] 当数据传输协议为减权传输协议时,主控装置110将每个显示精度为N的待显示数据分为2Ν_η部分包括: [0092] When the data transfer protocol for the right to reduce the transmission protocol, the master device 110 N of each display accuracy of data to be displayed into 2Ν_η section includes:

[0093] 每部分数据包括N位:取N位完整数据的前η位作为高位,将后(Ν_η)位中的前(Ν-η-1)位补零,最后一位补1或0。 [0093] Each section includes an N-bit data: take the N-bit data integrity before η bit as high, the rear (Ν_η) bits before (Ν-η-1) bit zeros, the last one up 1 or 0.

[0094] 最后一位补1或0包括:[0095] 计算显示精度为N的待显示数据的后(Nn)位的十进制数值K, [0094] Finally, a supplement of 1 or 0 comprising: [0095] Calculations show that the accuracy of N data to be displayed after the (Nn) decimal value K,

[0096] 2N_n部分的最后一位中有K个部分取值为1,其余部分取值为0。 The last one [0096] 2N_n portion has a value of 1 K portions, and the rest is 0.

[0097] 当数据传输协议为同权传输协议时,主控装置110将每个显示精度为N的待显示数据分为2N_n部分包括: [0097] When the data transfer protocol for the same power transfer agreement, the master device 110 N of each display accuracy of data to be displayed into 2N_n section includes:

[0098] 每部分数据包括(n+1)位:取N位完整数据的前η位作为高位,最后一位补1或0。 [0098] Each section data includes (n + 1) bit: take the N-bit data integrity before η bits as high, the last one up 1 or 0.

[0099] 最后一位补1或0包括: [0099] Finally, a supplement of 1 or 0 include:

[0100] 计算显示精度为N的待显示数据的后(Nn)位的十进制数值K, [0100] Calculations show that the accuracy of N data to be displayed after the decimal value of (Nn) bits of K,

[0101] 2N_n部分的最后一位中有K个部分取值为1,其余部分取值为0。 The last one [0101] 2N_n portion has a value of 1 K portions, and the rest is 0.

[0102] 对于完整一帧的N位完整数据,每行显示时间周期为2n*TeaK(其中η彡N),m行扫描的动态屏,主控装置110需要发送: [0102] N-bit full data for one complete frame, each line shows the time period is 2n * TeaK (where η Pie N), dynamic screen m line scanning, the master device 110 needs to be sent:

[0103] 1)发送数据的次数:2N_n*m次数据; The number of [0103] 1) Send data: 2N_n * m secondary data;

[0104] 2)数据的长度:根据传输协议不同而确定,传统传输方法,数据位为N位;同权传输协议位数为(n+1); Length [0104] 2) the data: Depending on the transport protocol determined, a conventional transmission method, data bits to N bits; with the right transport protocol median (n + 1);

[0105] 3)数据的大小:N位完整数据的前η位作为高位,最后一位(最低位)补1的个数等于N位完整数据的低(Nn)位数据代表的数值(十进制的K),补0的个数等于。 Former η value N bits data integrity as high, the last (least significant bit) complement number of 1 or N-bit data integrity Low (Nn) bits of data representative of the (decimal: the size of the [0105] 3) data K), equal to the number of 0s.

[0106] 从机装置120,用于根据接收的2N_n*m部分数据进行显示控制,其中η为实际显示时每行的数据精度,m为显示屏的行扫描行数。 [0106] The slave device 120, for performing display control based on the received partial data 2N_n * m, where η is the accuracy of the data actually displayed in each row, m is the number of scanning lines of the display line.

[0107] 从机装置120用于接收的2N_n*m部分数据进行显示控制还包括: [0107] 2N_n * m part of the data from the machine means 120 for receiving display control further comprises:

[0108] 从机装置120控制显示屏每行的显示时间为2n个基本时钟周期,在2n个基本时钟周期结束后,从机装置120的驱动脚会有至少一个基本时钟周期的关断; [0108] from 120 controller device display time for each row is 2n basic clock cycle, at the end of the 2n basic clock cycle, the slave device driver 120 will have at least one foot off the basic clock cycle;

[0109] 显示的2n个基本时钟周期内,展示的有效时间由从机装置120接收到的数据决定,其中,2n个基本时钟周期内的波形的占空比包括种情况,即能展示占空比0、 1/2\ (1+1)/2".....1 一共(2n+l)种情况。 [0109] 2n basic clock display effective time display is determined by the slave device 120 receives the data, which 2n basic clock duty cycle waveform including cases that can demonstrate a duty 0, 1/2 \ (1 + 1) / 2 "..... a total of (2n + l) case.

[0110] 译码驱动单元130,用于接收主控装置输入的控制信号,输出信号控制显示屏。 [0110] decoding drive unit 130, a control signal input for receiving the master device, the output signal to control the display.

[0111] 译码驱动单元130包括3-8译码器或2-4译码器。 [0111] decoding unit 130 includes a drive decoder 3-8 or 2-4 decoder.

[0112] 为了进一步阐述本发明,下面结合具体数据进一步举例。 [0112] In order to further illustrate the present invention, the following further illustrated with specific data.

[0113] 图6是主控装置发送数据的格式。 [0113] FIG. 6 is a format of the master device transmitting data. 每一行的12比特灰度数据,8扫显示屏,那么N= 12,m = S0选取η = 10,那么数据发送的次数为按照上述数据格式分成4份,因为2N_n =212-10 = 4。 12-bit gradation data for each row, 8 scan display, then N = 12, m = S0 select η = 10, then the number of times the data is transmitted in accordance with the above-described data format into 4 parts, as 2N_n = 212-10 = 4.

[0114] 共发送数据的次数为:2N_n*m = 212_1(i*8 = 32次,分别对应:第一行数据D1,分成Dll,D12,D13,D14 ;第二行的数据D2,分成D21,D22,D23,D24 ;以此类推,第八行的数据D8, The number of [0114] the transmission data is common: 2N_n * m = 212_1 (i * 8 = 32 times, respectively: a first data line D1, divided Dll, D12, D13, D14; second data line D2, D21 into , D22, D23, D24; so, data eighth row of D8,

分成D81,D82,D83,D84。 Divided D81, D82, D83, D84. 发送的顺序为Dll —D21 —......—D81 —D12 —......—D82 —Dl Send the order Dll -D21 -......- D81 -D12 -......- D82 -Dl

3 —......— D83 — D14 —......— D84。 3 -......- D83 - D14 -......- D84.

[0115] 如果采用减权传输协议,每一个数据的长度为N= 12位;如果采用同权传输协议, 每一个数据的长度为n+1 = 11位; [0115] If the right to reduce the transmission protocol, the length of each data of N = 12 place; if you use the same power transmission protocol, the length of each data of n + 1 = 11 place;

[0116] 数据的大小:新数据的前η位是12比特数据的前η位,即高10位。 Size [0116] data: η bit before the new data is 12 bits of data before the η position, that is, high 10. 假设第一行的12比特数据为Dl = 12,b0011_0011_0110,其前10位就是00_1100_1101。 Assume 12-bit data of the first row is Dl = 12, b0011_0011_0110, its former 10 is 00_1100_1101. Dl最后两位是2' blO,是十进制数字2,那么需要在Dll,D12,D13,D14这4份数据的最后1位有2个1,2 个0。 Dl last two are 2 'blO, decimal number 2, you will need at the end of a Dll, D12, D13, D14 which has four data 2 1,2 0. 采用同权数据传输,那么选取Dll = 001_1001_1010,D12 = 001_1001_1010,D13 =001_1001_1011,D14 = 001_1001_1011 ;D2 〜D8 的拆分原理与Dl 一样。 The right to use the same data, then select Dll = 001_1001_1010, D12 = 001_1001_1010, D13 = 001_1001_1011, D14 = 001_1001_1011; split principle with Dl D2 ~D8 same.

[0117] 从机装置输出如图7所示,进行了4次完整的扫描输出。 [0117] Slave device output shown in Figure 7, carried out four times a complete scan output. 在每个换行时间内,必须发送1024( = 210)个GCLK周期。 Within each line time, it must send 1024 (= 210) a GCLK cycle.

[0118] 在上述例中,可以将从机输出的扫描频率提升到4倍。 [01] In the above example, you can upgrade from a scanning frequency machine output to 4 times. 但是需要保证,在一个完整的显示周期内,每一行点亮的时间与传统方法中的一致。 But the need to ensure, in a complete display period, the lighting time of each line and consistent with conventional methods.

[0119] 比较图2和图6、图7,在一个完整显示周期内的统计,做如下表格: [0119] comparing Figures 2 and 6, 7, in a complete cycle display statistics, do the following table:

[0120] 表1两种方法的对比 Comparison [0120] Table 1 of the two methods

[0121] [0121]

Figure CN102194421AD00111

[0122] [0122]

[0123] 在本发明提出的方法或装置中,主控装置将所接收到的显示数据经过预处理,例如包括:确定行扫描精度后,根据传输协议,将数据进行转换,将经过处理后的数据,送入到从机装置中,从机装置经过特殊的PWM处理后,驱动LED灯显示。 [0123] In the method or apparatus of the present invention is proposed, the main control unit to display the received data preprocessed, e.g. comprising: after determining the accuracy of the scan lines, according to the transmission protocol, the data is converted, after treatment Data sent to the slave device, the slave device through a special PWM process, the drive LED light display. 图8为与传统方法相比本发明译码单元频率增大示意图,此时,C信号的频率为: Figure 8 is compared with the conventional method of the present invention to increase the frequency of the decoding unit schematic, this time, the frequency of C signal is:

[0124] [0124]

Figure CN102194421AD00112

[0125] 经过主控装置和从机装置的配合,刷新率大幅提升,便于拍摄,示意图如图9所示。 [0125] After the master and the slave with the motor system, refresh rate significantly improved ease of shooting, schematic diagram shown in Figure 9.

[0126] 本发明提出的上述方法或设备,通过在不影响原有数据的精度的前提下,将原始数据分段、增加发送次数,在不影响原有数据的精度的前提下,能有效提高显示的刷新频率。 [0126] The method or apparatus of the present invention, the above-mentioned proposed by without affecting the accuracy of the original data, the original data segments, increasing the number of transmissions, without compromising the accuracy of the original data can improve refresh rate display. 此外,本发明提出的上述方法或设备,通过主控装置对原始数据进行预处理,结合译码驱动单元、从机装置的显示控制,实现高刷新率、高数据精度的显示,实现方案简单、高效。 In addition, the above method or apparatus of the present invention proposes, through the master device for pre-processing raw data, combined with decoding drive unit, control unit from the display unit, high refresh rate, high precision of the data show that implementation is simple, efficient.

[0127] 本领域普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中, 该程序在执行时,包括方法实施例的步骤之一或其组合。 [0127] Those of ordinary skill will be appreciated that all or part of the steps of the above-described embodiments of the method can be carried by a program instructing relevant hardware, the program may be stored in a computer readable storage medium, the program Upon execution, including the method of one example of the steps, or combinations thereof.

[0128] 另外,在本发明各个实施例中的各功能单元可以集成在一个处理模块中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个模块中。 [0128] In addition, examples of the functional units in the various embodiments of the present invention may be integrated in one processing module, each unit may be a separate physical presence to be two or more units are integrated in one module. 上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。 Said integrated modules can be used both in the form of hardware to achieve, you can also take the form of software function module. 所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。 The integrated modules if implemented as software modules and as a standalone product sold or used, may be stored in a computer readable storage medium.

[0129] 上述提到的存储介质可以是只读存储器,磁盘或光盘等。 [0129] the above-mentioned storage medium may be a read-only memory, magnetic or optical disk and the like. [0130] 以上所述仅是本发明的实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0130] The above are only embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principle of the premise, you can also make a number of improvements and modifications, such modifications and Retouch should also be considered as the scope of the invention.

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International ClassificationG09G3/34
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