WO2009095867A3 - String of light modules - Google Patents
String of light modules Download PDFInfo
- Publication number
- WO2009095867A3 WO2009095867A3 PCT/IB2009/050344 IB2009050344W WO2009095867A3 WO 2009095867 A3 WO2009095867 A3 WO 2009095867A3 IB 2009050344 W IB2009050344 W IB 2009050344W WO 2009095867 A3 WO2009095867 A3 WO 2009095867A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shift register
- string
- register system
- boundary scan
- controlled
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/18—Controlling the light source by remote control via data-bus transmission
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
Abstract
The present invention relates to a controlled lighting system (100) comprising a control system (10) and a string (40) of light modules (30). Each light module (30) consists of a light bar of LEDs (210, 211, 212) and each LED (210, 211, 212) is controlled by a shift register system (230) through a respective driver (220, 221, 222). The shift register system (230) receives an input data signal (TDI) and at least two control signals (TCK, TMS), while transmitting to the input of the next shift register system (230) an output data signal (TDO) and the same at least two control signals (TCK, TMS). In an embodiment, the shift register system (230) refers to a boundary scan test interface. Through the shift register system (230), each driver (220, 221, 222) is controlled by at least one 1-bit boundary scan cell implementing a boundary scan function. Thus, the intensity of each LED (210, 211, 212) in a string (40) of light modules (30) can be controllable, and the string (40) be effectively shortened using the bypass register (320) of the shift register system (230).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08101107 | 2008-01-30 | ||
EP08101107.4 | 2008-01-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009095867A2 WO2009095867A2 (en) | 2009-08-06 |
WO2009095867A3 true WO2009095867A3 (en) | 2010-03-11 |
Family
ID=40913353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2009/050344 WO2009095867A2 (en) | 2008-01-30 | 2009-01-28 | String of light modules |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009095867A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102340909B (en) * | 2010-07-23 | 2014-01-15 | 聚积科技股份有限公司 | Serial controller and serial bidirectional controller |
Families Citing this family (6)
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---|---|---|---|---|
DE102009044058A1 (en) * | 2009-09-18 | 2011-03-31 | Müller, Dietmar | Dimmable fairy lights and switches for this |
JP5695088B2 (en) * | 2010-01-22 | 2015-04-01 | コーニンクレッカ フィリップス エヌ ヴェ | Lighting device having a plurality of light emitting tiles |
TWI410930B (en) * | 2010-05-24 | 2013-10-01 | Macroblock Inc | Led driver and led driving system |
CN102264176B (en) * | 2010-05-31 | 2014-01-29 | 聚积科技股份有限公司 | Driving device of LED (light emitting diode) |
TWI414207B (en) * | 2010-07-16 | 2013-11-01 | Macroblock Inc | Serial controller and serial bi-directional controller |
GB2519587A (en) | 2013-10-28 | 2015-04-29 | Barco Nv | Tiled Display and method for assembling same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2308664A (en) * | 1995-12-28 | 1997-07-02 | Eastman Kodak Co | Boundary scanning interface for testing and controlling the operation of an IC |
WO2005101916A1 (en) * | 2004-04-19 | 2005-10-27 | Tir Systems Ltd. | Parallel pulse code modulation system and method |
EP1694099A2 (en) * | 2005-02-18 | 2006-08-23 | Samsung Electronics Co., Ltd. | LED driver device |
WO2007023454A1 (en) * | 2005-08-26 | 2007-03-01 | Koninklijke Philips Electronics N.V. | Led light source for backlighting with integrated electronics |
US20070236156A1 (en) * | 2001-05-30 | 2007-10-11 | Color Kinetics Incorporated | Methods and apparatus for controlling devices in a networked lighting system |
US20080292344A1 (en) * | 2007-05-22 | 2008-11-27 | Oki Data Corporation | Drive circuit, light emitting diode head, and image forming apparatus |
-
2009
- 2009-01-28 WO PCT/IB2009/050344 patent/WO2009095867A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2308664A (en) * | 1995-12-28 | 1997-07-02 | Eastman Kodak Co | Boundary scanning interface for testing and controlling the operation of an IC |
US20070236156A1 (en) * | 2001-05-30 | 2007-10-11 | Color Kinetics Incorporated | Methods and apparatus for controlling devices in a networked lighting system |
WO2005101916A1 (en) * | 2004-04-19 | 2005-10-27 | Tir Systems Ltd. | Parallel pulse code modulation system and method |
EP1694099A2 (en) * | 2005-02-18 | 2006-08-23 | Samsung Electronics Co., Ltd. | LED driver device |
WO2007023454A1 (en) * | 2005-08-26 | 2007-03-01 | Koninklijke Philips Electronics N.V. | Led light source for backlighting with integrated electronics |
US20080292344A1 (en) * | 2007-05-22 | 2008-11-27 | Oki Data Corporation | Drive circuit, light emitting diode head, and image forming apparatus |
Non-Patent Citations (2)
Title |
---|
BURKHART J ET AL: "A Monolithically Integrated 128 Led-Driver and Its Application", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 52, no. 1, 1 February 1986 (1986-02-01), pages 26 - 31, XP011158441 * |
T-F WU ET AL: "Sequential Color LED Backlight Driving System for LCD Panels with Area Control", POWER ELECTRONICS SPECIALISTS CONFERENCE, 2007. PESC 2007. IEEE, IEEE, PISCATAWAY, NJ, USA, 17 June 2007 (2007-06-17), pages 2947 - 2952, XP031218723 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102340909B (en) * | 2010-07-23 | 2014-01-15 | 聚积科技股份有限公司 | Serial controller and serial bidirectional controller |
Also Published As
Publication number | Publication date |
---|---|
WO2009095867A2 (en) | 2009-08-06 |
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