CN101517626B - 背光装置和背光显示器的发光二极管元件组 - Google Patents
背光装置和背光显示器的发光二极管元件组 Download PDFInfo
- Publication number
- CN101517626B CN101517626B CN2007800358429A CN200780035842A CN101517626B CN 101517626 B CN101517626 B CN 101517626B CN 2007800358429 A CN2007800358429 A CN 2007800358429A CN 200780035842 A CN200780035842 A CN 200780035842A CN 101517626 B CN101517626 B CN 101517626B
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- CN
- China
- Prior art keywords
- time
- operational phase
- emitting diode
- light
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
- G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
- G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
- G09G3/14—Semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- 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
- H05B45/37—Converter circuits
-
- 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
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/375—Switched mode power supply [SMPS] using buck topology
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Control Of El Displays (AREA)
- Led Devices (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0653938A FR2906396A1 (fr) | 2006-09-26 | 2006-09-26 | Ensemble d'elements a diode electroluminescente pour dispositif de retro-eclairage, dispositif de retro-eclairage et ecran a retro-eclairage. |
FR0653938 | 2006-09-26 | ||
PCT/EP2007/059912 WO2008037641A1 (en) | 2006-09-26 | 2007-09-19 | Set of light emissive diode elements for a backlight device and backlight display |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101517626A CN101517626A (zh) | 2009-08-26 |
CN101517626B true CN101517626B (zh) | 2012-03-14 |
Family
ID=37905847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007800358429A Active CN101517626B (zh) | 2006-09-26 | 2007-09-19 | 背光装置和背光显示器的发光二极管元件组 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20100194790A1 (zh) |
EP (1) | EP2070073A1 (zh) |
JP (1) | JP5331696B2 (zh) |
KR (1) | KR101620554B1 (zh) |
CN (1) | CN101517626B (zh) |
BR (1) | BRPI0716524A2 (zh) |
FR (1) | FR2906396A1 (zh) |
WO (1) | WO2008037641A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101289639B1 (ko) * | 2008-07-04 | 2013-07-30 | 엘지디스플레이 주식회사 | 백라이트 유닛의 광원 구동장치 및 방법 |
US8994639B2 (en) | 2012-05-16 | 2015-03-31 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED backlight driving circuit, backlight module, and LCD device |
CN102682719B (zh) * | 2012-05-16 | 2015-07-15 | 深圳市华星光电技术有限公司 | 一种led背光驱动电路、背光模组及液晶显示装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1242925A (zh) * | 1997-01-03 | 2000-01-26 | 艾利森电话股份有限公司 | 驱动电路及其操作方法 |
EP1675097A2 (en) * | 2004-11-19 | 2006-06-28 | Sony Corporation | Backlight device, method of driving backlight and liquid crystal display apparatus |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0974224A (ja) * | 1995-09-05 | 1997-03-18 | Canon Inc | 点灯回路 |
JP2000150191A (ja) * | 1998-11-13 | 2000-05-30 | Murata Mfg Co Ltd | 冷陰極管駆動装置 |
US6618031B1 (en) * | 1999-02-26 | 2003-09-09 | Three-Five Systems, Inc. | Method and apparatus for independent control of brightness and color balance in display and illumination systems |
US7176948B2 (en) * | 2000-04-12 | 2007-02-13 | Honeywell International Inc. | Method, apparatus and computer program product for controlling LED backlights and for improved pulse width modulation resolution |
JP3971892B2 (ja) * | 2000-09-08 | 2007-09-05 | 株式会社日立製作所 | 液晶表示装置 |
US20020159002A1 (en) * | 2001-03-30 | 2002-10-31 | Koninklijke Philips Electronics N.V. | Direct backlighting for liquid crystal displays |
US7088321B1 (en) * | 2001-03-30 | 2006-08-08 | Infocus Corporation | Method and apparatus for driving LED light sources for a projection display |
US7088334B2 (en) * | 2001-06-28 | 2006-08-08 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal display device and manufacturing method thereof, and drive control method of lighting unit |
AU2003289238A1 (en) * | 2002-12-06 | 2004-06-30 | Sharp Kabushiki Kaisha | Liquid crystal display device |
GB0313044D0 (en) * | 2003-06-06 | 2003-07-09 | Cambridge Flat Projection | Flat panel scanning illuminator |
KR100995640B1 (ko) * | 2003-07-07 | 2010-11-19 | 엘지디스플레이 주식회사 | 액정표시모듈 |
KR20050050894A (ko) * | 2003-11-26 | 2005-06-01 | 엘지.필립스 엘시디 주식회사 | 백라이트 유닛 |
EP3223587A3 (en) * | 2004-03-15 | 2017-11-08 | Philips Lighting North America Corporation | Power control methods and apparatus |
JP4529573B2 (ja) * | 2004-07-28 | 2010-08-25 | 三菱電機株式会社 | 面状光源装置及び液晶表示装置 |
TWI236165B (en) * | 2004-07-30 | 2005-07-11 | Au Optronics Corp | Driving device for light emitted diode string |
US7276861B1 (en) * | 2004-09-21 | 2007-10-02 | Exclara, Inc. | System and method for driving LED |
JP4400443B2 (ja) * | 2004-12-21 | 2010-01-20 | カシオ計算機株式会社 | 発光駆動回路及びその駆動制御方法、並びに、表示装置及びその表示駆動方法 |
KR20060079983A (ko) * | 2005-01-04 | 2006-07-07 | 삼성전자주식회사 | 액정 표시 장치 |
KR100638723B1 (ko) * | 2005-02-04 | 2006-10-30 | 삼성전기주식회사 | Led 어레이 구동 장치 및 이를 이용한 백라이트 구동 장치 |
US7579818B2 (en) * | 2005-07-28 | 2009-08-25 | Semiconductor Components Industries, L.L.C. | Current regulator and method therefor |
TWI277225B (en) * | 2005-08-03 | 2007-03-21 | Beyond Innovation Tech Co Ltd | Apparatus of light source and adjustable control circuit for LEDs |
-
2006
- 2006-09-26 FR FR0653938A patent/FR2906396A1/fr active Pending
-
2007
- 2007-09-19 EP EP20070820356 patent/EP2070073A1/en not_active Withdrawn
- 2007-09-19 WO PCT/EP2007/059912 patent/WO2008037641A1/en active Application Filing
- 2007-09-19 CN CN2007800358429A patent/CN101517626B/zh active Active
- 2007-09-19 BR BRPI0716524-2A2A patent/BRPI0716524A2/pt not_active Application Discontinuation
- 2007-09-19 JP JP2009529663A patent/JP5331696B2/ja active Active
- 2007-09-19 US US12/311,300 patent/US20100194790A1/en not_active Abandoned
- 2007-09-19 KR KR1020097005646A patent/KR101620554B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1242925A (zh) * | 1997-01-03 | 2000-01-26 | 艾利森电话股份有限公司 | 驱动电路及其操作方法 |
EP1675097A2 (en) * | 2004-11-19 | 2006-06-28 | Sony Corporation | Backlight device, method of driving backlight and liquid crystal display apparatus |
Also Published As
Publication number | Publication date |
---|---|
BRPI0716524A2 (pt) | 2013-09-24 |
FR2906396A1 (fr) | 2008-03-28 |
EP2070073A1 (en) | 2009-06-17 |
CN101517626A (zh) | 2009-08-26 |
JP5331696B2 (ja) | 2013-10-30 |
WO2008037641A1 (en) | 2008-04-03 |
US20100194790A1 (en) | 2010-08-05 |
JP2010504621A (ja) | 2010-02-12 |
KR20090067140A (ko) | 2009-06-24 |
KR101620554B1 (ko) | 2016-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: French Boulogne - Billancourt Patentee before: THOMSON LICENSING |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190130 Address after: Paris France Patentee after: International Digital Madison Patent Holding Co. Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING Effective date of registration: 20190130 Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING |