CN102682718A - 液晶显示屏背光模组及其控制方法 - Google Patents
液晶显示屏背光模组及其控制方法 Download PDFInfo
- Publication number
- CN102682718A CN102682718A CN2012101465897A CN201210146589A CN102682718A CN 102682718 A CN102682718 A CN 102682718A CN 2012101465897 A CN2012101465897 A CN 2012101465897A CN 201210146589 A CN201210146589 A CN 201210146589A CN 102682718 A CN102682718 A CN 102682718A
- Authority
- CN
- China
- Prior art keywords
- backlight
- module
- control
- lcd screen
- boost
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 title abstract 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005669 field effect Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
Images
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
-
- 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
-
- 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]
- H05B45/38—Switched mode power supply [SMPS] using boost topology
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0653—Controlling or limiting the speed of brightness adjustment of the illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/026—Arrangements or methods related to booting a display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/027—Arrangements or methods related to powering off a display
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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)
Abstract
Description
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210146589.7A CN102682718B (zh) | 2012-05-11 | 2012-05-11 | 液晶显示屏背光模组及其控制方法 |
US13/522,962 US9072129B2 (en) | 2012-05-11 | 2012-05-25 | LCD backlight module and method for controlling the same |
PCT/CN2012/076055 WO2013166756A1 (zh) | 2012-05-11 | 2012-05-25 | 液晶显示屏背光模组及其控制方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210146589.7A CN102682718B (zh) | 2012-05-11 | 2012-05-11 | 液晶显示屏背光模组及其控制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102682718A true CN102682718A (zh) | 2012-09-19 |
CN102682718B CN102682718B (zh) | 2015-01-21 |
Family
ID=46814545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210146589.7A Active CN102682718B (zh) | 2012-05-11 | 2012-05-11 | 液晶显示屏背光模组及其控制方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9072129B2 (zh) |
CN (1) | CN102682718B (zh) |
WO (1) | WO2013166756A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103927993A (zh) * | 2013-12-18 | 2014-07-16 | 上海中航光电子有限公司 | 显示屏背光控制电路、方法及显示设备 |
WO2014205671A1 (zh) * | 2013-06-24 | 2014-12-31 | 深圳市华星光电技术有限公司 | Led背光源的驱动电路、led背光源及液晶显示设备 |
CN111028790A (zh) * | 2019-12-09 | 2020-04-17 | 昆山龙腾光电股份有限公司 | 背光调节电路、调节方法以及液晶显示装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103077684B (zh) * | 2013-01-23 | 2015-09-16 | 京东方科技集团股份有限公司 | 一种背光调节方法、装置和显示屏 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101038715A (zh) * | 2007-04-26 | 2007-09-19 | 海尔集团公司 | 液晶屏背光灯启动关闭方法及其控制系统 |
JP2007265812A (ja) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | 照明装置 |
CN101625473A (zh) * | 2009-08-03 | 2010-01-13 | 青岛海信电器股份有限公司 | 背光单元及其测试方法、液晶模组及其测试方法 |
CN102149234A (zh) * | 2010-02-09 | 2011-08-10 | 京东方科技集团股份有限公司 | 背光源控制方法及装置 |
EP2403223A1 (en) * | 2010-06-30 | 2012-01-04 | Research In Motion Limited | Adaptation of display illumination depending on ambient light |
CN202204885U (zh) * | 2011-08-21 | 2012-04-25 | 深圳市同兴达科技有限公司 | 背光源模组元件检测装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW592365U (en) * | 2003-05-21 | 2004-06-11 | Richtek Technology Corp | Light source control chip of dual-display handheld device |
-
2012
- 2012-05-11 CN CN201210146589.7A patent/CN102682718B/zh active Active
- 2012-05-25 WO PCT/CN2012/076055 patent/WO2013166756A1/zh active Application Filing
- 2012-05-25 US US13/522,962 patent/US9072129B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007265812A (ja) * | 2006-03-28 | 2007-10-11 | Matsushita Electric Works Ltd | 照明装置 |
CN101038715A (zh) * | 2007-04-26 | 2007-09-19 | 海尔集团公司 | 液晶屏背光灯启动关闭方法及其控制系统 |
CN101625473A (zh) * | 2009-08-03 | 2010-01-13 | 青岛海信电器股份有限公司 | 背光单元及其测试方法、液晶模组及其测试方法 |
CN102149234A (zh) * | 2010-02-09 | 2011-08-10 | 京东方科技集团股份有限公司 | 背光源控制方法及装置 |
EP2403223A1 (en) * | 2010-06-30 | 2012-01-04 | Research In Motion Limited | Adaptation of display illumination depending on ambient light |
CN202204885U (zh) * | 2011-08-21 | 2012-04-25 | 深圳市同兴达科技有限公司 | 背光源模组元件检测装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014205671A1 (zh) * | 2013-06-24 | 2014-12-31 | 深圳市华星光电技术有限公司 | Led背光源的驱动电路、led背光源及液晶显示设备 |
CN103927993A (zh) * | 2013-12-18 | 2014-07-16 | 上海中航光电子有限公司 | 显示屏背光控制电路、方法及显示设备 |
CN103927993B (zh) * | 2013-12-18 | 2016-04-27 | 上海中航光电子有限公司 | 显示屏背光控制电路、方法及显示设备 |
CN111028790A (zh) * | 2019-12-09 | 2020-04-17 | 昆山龙腾光电股份有限公司 | 背光调节电路、调节方法以及液晶显示装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2013166756A1 (zh) | 2013-11-14 |
CN102682718B (zh) | 2015-01-21 |
US20150069927A1 (en) | 2015-03-12 |
US9072129B2 (en) | 2015-06-30 |
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Legal Events
Date | Code | Title | Description |
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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 | ||
CP03 | Change of name, title or address |
Address after: 518132 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 518132 No. 9-2 Ming Avenue, Guangming New District, Guangdong, Shenzhen Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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CP03 | Change of name, title or address | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210309 Address after: No.109, Kangping Road, Liuyang economic and Technological Development Zone, Changsha, Hunan 410300 Patentee after: Changsha Huike optoelectronics Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: TCL China Star Optoelectronics Technology Co.,Ltd. |
|
TR01 | Transfer of patent right |