WO2015081638A1 - Head up display - Google Patents

Head up display Download PDF

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Publication number
WO2015081638A1
WO2015081638A1 PCT/CN2014/072629 CN2014072629W WO2015081638A1 WO 2015081638 A1 WO2015081638 A1 WO 2015081638A1 CN 2014072629 W CN2014072629 W CN 2014072629W WO 2015081638 A1 WO2015081638 A1 WO 2015081638A1
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WIPO (PCT)
Prior art keywords
projector
display
information
dimensional
mirror
Prior art date
Application number
PCT/CN2014/072629
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French (fr)
Chinese (zh)
Inventor
叶大为
Original Assignee
常熟精元电脑有限公司
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Application filed by 常熟精元电脑有限公司 filed Critical 常熟精元电脑有限公司
Publication of WO2015081638A1 publication Critical patent/WO2015081638A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type

Definitions

  • the present invention relates to a heads up display; and more particularly to a heads up display capable of displaying a three dimensional image. Background technique
  • the head up display is used to project driving information, such as information displayed on a general instrument panel, on the front windshield of the car, so that the driver's line of sight can be simultaneously without leaving the front windshield.
  • driving information such as information displayed on a general instrument panel
  • Driving information through the front windshield and the image of the front windshield projected from the head-up display, without having to look down at the dashboard to increase driving safety.
  • the head-up display can greatly improve the driving safety, and it is also quite helpful for the driver's experience.
  • the content of the display is limited.
  • the way of display is also limited to two-dimensional imaging.
  • the display mode of the head-up display maintains the traditional LED architecture, and the pattern that may be displayed is first placed on the surface of the display, and the optical design is used to generate a virtual image through the reflection of the front windshield to convey information to the driver, but due to the optical of the display plane
  • the frame is a flat display, so after the reflection of the front windshield, the imaged plane still maintains a two-dimensional space, and the experience is relatively close to the two-dimensional display panel simply projecting the display on the glass, so that in a limited area
  • the colors and contents displayed by the internal energy cannot be diversified, so it is difficult to display multiple and complex messages. All the content is focused on digital and fixed warning signs.
  • the navigation information is added, and in the future, the car needs to be combined. Under the development trend of information, traditional head-up displays are difficult to meet the needs. Summary of the invention
  • the head-up display of the present invention comprises: a projector that receives the compiled information and projects the image corresponding to the information; a three-dimensional imaging mechanism that projects the projector The generating is projected for the 3D image; and the mirror reflects the 3D image projected by the 3D imaging mechanism onto the front windshield of the automobile.
  • the three-dimensional imaging mechanism includes at least two diffusion plates that are staggered with each other.
  • the diffusing plate has a transmittance of more than 50% and a haze of more than 10%.
  • the projector is one of a MEMS projector, a DLP projector, and an Lcos projector.
  • the reflectivity of the mirror is greater than 90%, and the mirror is a plane mirror or a curved mirror.
  • a three-dimensional image can be displayed on the front windshield of the automobile, which is more attractive and applicable to the display of the image, and provides a richer and more diverse information for the driver.
  • Figure 1 is a schematic view showing the structure of a head-up display of the present invention
  • FIG. 2 is a schematic view of the projector of FIG. 1 projecting images to a first diffusion plate and a second diffusion plate, respectively. detailed description
  • the head-up display of the present invention includes a projector 10, a three-dimensional imaging mechanism 20, and a mirror 30, the projector 10 receiving the compiled information and projecting the image corresponding to the information;
  • Mechanism 20 projects the projector 10
  • the image generation is projected for the three-dimensional image;
  • the mirror 30 reflects the three-dimensional image projected by the three-dimensional imaging mechanism 20 onto the front windshield 40 of the automobile.
  • the information here refers to all the information that the driver needs to know, such as: speed, mileage, oil quantity and other information on the dashboard, as well as navigation screens, reversing images and so on.
  • the projector 10 can adopt a micro projector such as a MEMS projector, a DLP projector and a Lcos projector.
  • the main image of the information is projected by strong light. Since the pico projector is small in size, it can be produced with a small volume. Larger images, through the arrangement of the content of the images, can display multiple information content.
  • the position of the projector 10 can be placed anywhere depending on the design, but the optical path will eventually be imaged by the three-dimensional imaging mechanism 20.
  • the three-dimensional imaging mechanism 20 includes two diffusing plates, that is, a first diffusing plate 21 and a second diffusing plate 22, which are arranged in a staggered manner, so that the image projected by the projector 10 can be imaged by the first diffusing plate 21 and the second diffusing plate 22.
  • the projector 10 projects different information to the first diffusion plate 21 and the second diffusion plate 22, for example, projecting the information "B” onto the first diffusion plate 21, and the information " A” is projected onto the second diffusion plate 22, since the first diffusion plate 21 and the second diffusion plate 22 are alternately arranged, there is an angle between each other, so that the information "A” and "B” pass through the first diffusion plate 21 and the second
  • a three-dimensional image is seen on the front windshield 40.
  • the angle between the first diffuser 21 and the second diffuser 22 the three-dimensional image can be overlapped with the image outside the window.
  • the diffuser plate can also be set to two or more as needed, and the diffuser plates are alternately arranged so that different information can be displayed on different planes.
  • the first diffusing plate 21 and the second diffusing plate 22 are made of a thin plate material having optical haze and high transmittance, such as a light diffusing plate, frosted glass, or a film mixed with fine particles, etc., which can reduce light loss.
  • the information image is projected onto the front windshield 40 through the mirror 30.
  • the first diffusing plate 21 and the second diffusing plate 22 have a transmittance of more than 50% and a haze of more than 10%.
  • the reflectivity of the mirror 30 is greater than 90%, and the mirror 30 can be a plane reflection. Mirror or curved mirror.
  • the projector 10 can reduce the volume of the mechanism by at least one mirror 30, and no matter how many mirrors pass, it is finally reflected onto the front windshield 40 of the automobile, allowing the driver to see the three-dimensional image.
  • the head-up display of the present invention further includes a base 50 on which the projector 10, the three-dimensional imaging mechanism 20 and the mirror 30 are sequentially disposed.
  • the projector can receive the compiled multi-information information, and generate the three-dimensional image through the three-dimensional imaging mechanism, which is more attractive and applicable in the display of the image, and can provide a richer driver for the driver. Diversified information.

Abstract

Provided is a head up display, comprising: a projector (10) used for receiving edited information and projecting an image corresponding to the information; a three-dimensional imaging mechanism (20) used for turning the image projected from the projector into a three-dimensional image and projecting the three-dimensional image; and at least one reflecting mirror (30) used for reflecting the three-dimensional image projected from the three-dimensional imaging mechanism to the front windshield (40) of an automobile. By using the head up display, three-dimensional images can be displayed on the front windshield of an automobile, making the displaying of images more attractive and applicable, and providing drivers with more diversified information.

Description

抬头显示器  Head up display
技术领域 Technical field
本发明涉及一种抬头显示器； 具体地说， 本发明涉及一种可显示 三维影像的抬头显示器。 背景技术  The present invention relates to a heads up display; and more particularly to a heads up display capable of displaying a three dimensional image. Background technique
抬头显示器（Head up display, 筒称 HUD)是将行车资讯， 例如一 般仪表板显示的资讯， 投影于汽车前挡风玻璃， 让驾驶者的视线在不 用离开前挡风玻璃的情况下， 可同时透过前挡风玻璃注意车前路况并 由抬头显示器投影于前挡风玻璃的影像获得行车资讯， 而不需要再低 头观看仪表板， 以增加行车安全。  The head up display (HUD) is used to project driving information, such as information displayed on a general instrument panel, on the front windshield of the car, so that the driver's line of sight can be simultaneously without leaving the front windshield. Driving information through the front windshield and the image of the front windshield projected from the head-up display, without having to look down at the dashboard to increase driving safety.
抬头显示器在车用电子产品中， 除了可以大幅提升行车安全， 对 于驾驶者的经验上也有相当大的帮助， 然而传统的抬头显示器上， 由 于使用的技术限制， 导致显示的内容多元化有限制， 在显示的方式上 也限制于二维的成像。 目前抬头显示器的显示方式维持传统 LED架 构， 将可能显示的图案先置于显示器的表面， 利用光学设计， 通过前 挡风玻璃的反射， 产生虚像来传达资讯给驾驶者， 然而由于显示平面 的光学构架是平面显示， 所以通过前挡风玻璃的反射后， 成像的平面 仍然维持二维的空间， 在使用的体验上比较接近单纯将显示器投影在 玻璃上的二维显示面板， 这样在有限的区域内能显示的色彩及内容无 法多元化， 因此 ^艮难显示多元且复杂的讯息， 所有的内容集中在数字 和固定的警示标志为主， 然而在汽车加入导航讯息， 以及在未来汽车 需要结合多元资讯的发展趋势下， 传统的抬头显示器很难满足需要。 发明内容  In the automotive electronics, the head-up display can greatly improve the driving safety, and it is also quite helpful for the driver's experience. However, due to the technical limitations of the conventional head-up display, the content of the display is limited. The way of display is also limited to two-dimensional imaging. At present, the display mode of the head-up display maintains the traditional LED architecture, and the pattern that may be displayed is first placed on the surface of the display, and the optical design is used to generate a virtual image through the reflection of the front windshield to convey information to the driver, but due to the optical of the display plane The frame is a flat display, so after the reflection of the front windshield, the imaged plane still maintains a two-dimensional space, and the experience is relatively close to the two-dimensional display panel simply projecting the display on the glass, so that in a limited area The colors and contents displayed by the internal energy cannot be diversified, so it is difficult to display multiple and complex messages. All the content is focused on digital and fixed warning signs. However, in the car, the navigation information is added, and in the future, the car needs to be combined. Under the development trend of information, traditional head-up displays are difficult to meet the needs. Summary of the invention
本发明的目的在于提供一种能够克服上述问题的抬头显示器， 改 善显示的多元性。 本发明的上述目的通过以下技术方案实现： 本发明的抬头显示器 包括： 投影机，接收编排好的资讯， 并将该资讯对应的影像投射出去； 三维成像机构， 将所述投影机投射过来的影像生成为三维影像投射出 去； 以及反射镜， 将所述三维成像机构投射过来的三维影像反射到汽 车前挡风玻璃上。 It is an object of the present invention to provide a heads-up display that overcomes the above problems and that improves the diversity of display. The above object of the present invention is achieved by the following technical solutions: The head-up display of the present invention comprises: a projector that receives the compiled information and projects the image corresponding to the information; a three-dimensional imaging mechanism that projects the projector The generating is projected for the 3D image; and the mirror reflects the 3D image projected by the 3D imaging mechanism onto the front windshield of the automobile.
优选地， 所述三维成像机构包括相互交错设置的至少两个扩散 板。  Preferably, the three-dimensional imaging mechanism includes at least two diffusion plates that are staggered with each other.
优选地， 所述扩散板的穿透率大于 50%, 雾度大于 10% 。  Preferably, the diffusing plate has a transmittance of more than 50% and a haze of more than 10%.
优选地， 所述投影机为 MEMS投影机、 DLP投影机和 Lcos投影 机中的一种。  Preferably, the projector is one of a MEMS projector, a DLP projector, and an Lcos projector.
优选地， 所述反射镜的反射率大于 90%, 该反射镜为平面反射镜 或曲面反射镜。  Preferably, the reflectivity of the mirror is greater than 90%, and the mirror is a plane mirror or a curved mirror.
通过使用本发明的抬头显示器， 可在汽车前挡风玻璃上显示三维 影像， 在影像的显示上更具魅力和应用性， 并且可为驾驶员提供更丰 富的多元化资讯。 附图说明  By using the head-up display of the present invention, a three-dimensional image can be displayed on the front windshield of the automobile, which is more attractive and applicable to the display of the image, and provides a richer and more diverse information for the driver. DRAWINGS
参照附图， 本发明的公开内容将更加显然。 应当了解， 这些附图 仅是示意性的， 未按比例绘制也并非意在限制本发明的范围。 图中： 图 1是本发明的抬头显示器的构成示意图；  The disclosure of the present invention will become more apparent from the drawings. It is to be understood that the drawings are not intended to In the drawings: Figure 1 is a schematic view showing the structure of a head-up display of the present invention;
图 2是图 1中的投影机将影像分别投射到第一扩散板和第二扩散 板的示意图。 具体实施方式  2 is a schematic view of the projector of FIG. 1 projecting images to a first diffusion plate and a second diffusion plate, respectively. detailed description
下面参照附图详细地说明本发明的具体实施方式。 这些说明仅是 描述性、 示例性的。  Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. These instructions are only descriptive and exemplary.
参见图 1和 2, 本发明的抬头显示器包括投影机 10、 三维成像机 构 20和反射镜 30, 所述投影机 10接收编排好的资讯， 并将该资讯对 应的影像投射出去； 所述三维成像机构 20将所述投影机 10投射过来 的影像生成为三维影像投射出去； 所述反射镜 30将所述三维成像机 构 20投射过来的三维影像反射到汽车前挡风玻璃 40上。 这样， 驾驶 者在行车过程中就可看见投射在前挡风玻璃 40上的资讯。 这里的资 讯是指驾驶员行车中所需要了解的一切信息， 比如：仪表盘上的车速、 里程、 油量等信息， 还有导航画面、 倒车影像等等。 Referring to Figures 1 and 2, the head-up display of the present invention includes a projector 10, a three-dimensional imaging mechanism 20, and a mirror 30, the projector 10 receiving the compiled information and projecting the image corresponding to the information; Mechanism 20 projects the projector 10 The image generation is projected for the three-dimensional image; the mirror 30 reflects the three-dimensional image projected by the three-dimensional imaging mechanism 20 onto the front windshield 40 of the automobile. In this way, the driver can see the information projected on the front windshield 40 during driving. The information here refers to all the information that the driver needs to know, such as: speed, mileage, oil quantity and other information on the dashboard, as well as navigation screens, reversing images and so on.
所述投影机 10可采用 MEMS投影机、 DLP投影机和 Lcos投影 机这些微型投影机， 主要是讲资讯的影像画面通过强光投射出去， 由 于微型投影机体积小， 可以利用较小的体积产生较大的画面， 通过对 影像的内容的编排， 可以显示多元的资讯内容。  The projector 10 can adopt a micro projector such as a MEMS projector, a DLP projector and a Lcos projector. The main image of the information is projected by strong light. Since the pico projector is small in size, it can be produced with a small volume. Larger images, through the arrangement of the content of the images, can display multiple information content.
投影机 10 的位置可以根据设计需要摆放在任何位置， 但光学的 路径最后都会经过所述三维成像机构 20成像。  The position of the projector 10 can be placed anywhere depending on the design, but the optical path will eventually be imaged by the three-dimensional imaging mechanism 20.
所述三维成像机构 20 包括交错设置的两个扩散板即第一扩散板 21和第二扩散板 22, 可使投影机 10投射过来的影像通过第一扩散板 21和第二扩散板 22成像。 通过对资讯影像的编排， 使所述投影机 10 将不同的资讯分别投射到第一扩散板 21和第二扩散板 22, 比如， 将 资讯 "B"投射到第一扩散板 21 , 将资讯 "A"投射到第二扩散板 22, 由于第一扩散板 21和第二扩散板 22交错设置，相互间存在一个夹角， 这样资讯 "A"和 "B" 经过第一扩散板 21和第二扩散板 22后成为不 同平面的影像， 在前挡风玻璃 40 上会看见三维影像， 通过调整第一 扩散板 21和第二扩散板 22交错的夹角， 可使三维影像与车窗外的影 像重叠， 从而达到三维抬头显示器的光学显示。 根据需要， 扩散板还 可以设置为两个以上， 扩散板相互交错设置， 这样可在不同的平面显 示不同的信息。  The three-dimensional imaging mechanism 20 includes two diffusing plates, that is, a first diffusing plate 21 and a second diffusing plate 22, which are arranged in a staggered manner, so that the image projected by the projector 10 can be imaged by the first diffusing plate 21 and the second diffusing plate 22. By arranging the information images, the projector 10 projects different information to the first diffusion plate 21 and the second diffusion plate 22, for example, projecting the information "B" onto the first diffusion plate 21, and the information " A" is projected onto the second diffusion plate 22, since the first diffusion plate 21 and the second diffusion plate 22 are alternately arranged, there is an angle between each other, so that the information "A" and "B" pass through the first diffusion plate 21 and the second After the diffuser 22 is turned into a different plane image, a three-dimensional image is seen on the front windshield 40. By adjusting the angle between the first diffuser 21 and the second diffuser 22, the three-dimensional image can be overlapped with the image outside the window. Thus, the optical display of the three-dimensional head-up display is achieved. The diffuser plate can also be set to two or more as needed, and the diffuser plates are alternately arranged so that different information can be displayed on different planes.
所述第一扩散板 21和第二扩散板 22采用具有光学雾度且具有高 穿透率的薄板材料组成， 比如光扩散板， 毛玻璃， 或者参杂微小粒子 的薄膜等， 可以降低光线的损耗， 最终将资讯影像通过反射镜 30投 射在前挡风玻璃 40上。 所述第一扩散板 21和第二扩散板 22的穿透 率大于 50%, 雾度（haze ) 大于 10% 。  The first diffusing plate 21 and the second diffusing plate 22 are made of a thin plate material having optical haze and high transmittance, such as a light diffusing plate, frosted glass, or a film mixed with fine particles, etc., which can reduce light loss. Finally, the information image is projected onto the front windshield 40 through the mirror 30. The first diffusing plate 21 and the second diffusing plate 22 have a transmittance of more than 50% and a haze of more than 10%.
所述反射镜 30的反射率大于 90% , 该反射镜 30可以是平面反射 镜或曲面反射镜。 投影机 10可通过至少一个反射镜 30来减少机构体 积， 不管经过多少个反射镜， 最后都反射到汽车前挡风玻璃 40上， 让驾驶员看到三维的影像。 The reflectivity of the mirror 30 is greater than 90%, and the mirror 30 can be a plane reflection. Mirror or curved mirror. The projector 10 can reduce the volume of the mechanism by at least one mirror 30, and no matter how many mirrors pass, it is finally reflected onto the front windshield 40 of the automobile, allowing the driver to see the three-dimensional image.
本发明的抬头显示器还包括一底座 50, 所述投影机 10、 三维成 像机构 20和反射镜 30依次设置在所述底座 50上。  The head-up display of the present invention further includes a base 50 on which the projector 10, the three-dimensional imaging mechanism 20 and the mirror 30 are sequentially disposed.
本发明的抬头显示器， 投影机可接收编排好的多元资讯， 并将资 讯影像通过三维成像机构生成三维空间影像， 在影像的显示上更具魅 力和应用性， 并且可为驾驶员提供更丰富的多元化资讯。  In the head-up display of the invention, the projector can receive the compiled multi-information information, and generate the three-dimensional image through the three-dimensional imaging mechanism, which is more attractive and applicable in the display of the image, and can provide a richer driver for the driver. Diversified information.
如上所述， 参照附图对本发明的示例性具体实施方式进行了详细 的说明。 应当了解， 本申请并非意在使这些具体细节来构成对本发明 保护范围的限制。 在不背离根据本发明的精神和范围的情况下， 可对 示例性具体实施方式的结构和特征进行等同或类似的改变， 这些改变 将也落在本发明所附的权利要求书所确定的保护范围内。  As described above, the exemplary embodiments of the present invention have been described in detail with reference to the accompanying drawings. It should be understood that the present invention is not intended to be limited to the details of the invention. Equivalent or similar changes may be made to the structures and features of the exemplary embodiments without departing from the spirit and scope of the invention, which will also fall within the scope of the appended claims Within the scope.

Claims

权 利 要 求 书 Claim
1. 一种抬头显示器， 其特征在于， 包括：  A heads up display, comprising:
投影机， 接收编排好的资讯， 并将该资讯对应的影像投射出去； 三维成像机构， 将所述投影机投射过来的影像生成为三维影像投 射出去； 以及  The projector receives the arranged information and projects the image corresponding to the information; the three-dimensional imaging mechanism generates the image projected by the projector as a three-dimensional image to be projected;
至少一个反射镜， 将所述三维成像机构投射过来的三维影像反射 到汽车前挡风玻璃上。  At least one mirror reflects the three-dimensional image projected by the three-dimensional imaging mechanism onto the front windshield of the automobile.
2. 如权利要求 1 所述的抬头显示器， 其特征在于， 所述三维成 像机构包括相互交错设置的至少两个扩散板。  2. The heads-up display according to claim 1, wherein the three-dimensional imaging mechanism comprises at least two diffusion plates that are alternately arranged.
3. 如权利要求 2 所述的抬头显示器， 其特征在于， 所述扩散板 的穿透率大于 50%, 雾度大于 10% 。  3. The heads-up display according to claim 2, wherein the diffusing plate has a transmittance of more than 50% and a haze of more than 10%.
4. 如权利要求 1 所述的抬头显示器， 其特征在于， 所述投影机 为 MEMS投影机、 DLP投影机和 Lcos投影机中的一种。  4. The heads-up display according to claim 1, wherein the projector is one of a MEMS projector, a DLP projector, and an Lcos projector.
5. 如权利要求 1 所述的抬头显示器， 其特征在于， 所述反射镜 的反射率大于 90%, 该反射镜为平面反射镜或曲面反射镜。  5. The heads-up display according to claim 1, wherein the reflectivity of the mirror is greater than 90%, and the mirror is a plane mirror or a curved mirror.
PCT/CN2014/072629 2013-12-02 2014-02-27 Head up display WO2015081638A1 (en)

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