MX350740B - Método y dispositivo de control de brillo de retroiluminación. - Google Patents
Método y dispositivo de control de brillo de retroiluminación.Info
- Publication number
- MX350740B MX350740B MX2015013652A MX2015013652A MX350740B MX 350740 B MX350740 B MX 350740B MX 2015013652 A MX2015013652 A MX 2015013652A MX 2015013652 A MX2015013652 A MX 2015013652A MX 350740 B MX350740 B MX 350740B
- Authority
- MX
- Mexico
- Prior art keywords
- backlight lamp
- target
- current
- backlight
- brightness
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G09G2320/0238—Improving the black level
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
La presente descripción proporciona un método de control de brillo de retroiluminación y un dispositivo de control de brillo de retroiluminación. El método comprende: recibir una instrucción de control para ajustar un valor de brillo actual a un valor de brillo final; dejar de suministrar corriente a las lámparas de retroiluminación del primer conjunto de lámparas de retroiluminación, determinar un primer valor de corriente final necesario para que las lámparas de retroiluminación del segundo conjunto de lámparas de retroiluminación alcancen el valor de brillo final, y suministrar el primer valor de corriente final a las lámparas de retroiluminación del segundo conjunto de lámparas de retroiluminación, cuando el valor de brillo actual sea mayor que un primer valor umbral y el valor de brillo final sea menor que el primer valor umbral. Dado que las lámparas de retroiluminación del primer conjunto de lámparas de retroiluminación no emiten luz, la pérdida de brillo resultante necesita compensarse mediante el incremento del valor de corriente final suministrado a las lámparas de retroiluminación del segundo conjunto de lámparas de retroiluminación, a fin de evitar la interferencia de ruido externo debida a un suministro de corriente demasiado bajo. De acuerdo con el método de la presente descripción, las lámparas de retroiluminación pueden emitir luz con brillo muy bajo de manera estable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410423129.3A CN104217704A (zh) | 2014-08-26 | 2014-08-26 | 一种背光亮度的控制方法及装置 |
PCT/CN2015/071357 WO2016029640A1 (zh) | 2014-08-26 | 2015-01-22 | 一种背光亮度的控制方法及装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015013652A MX2015013652A (es) | 2016-07-19 |
MX350740B true MX350740B (es) | 2017-09-14 |
Family
ID=52099118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015013652A MX350740B (es) | 2014-08-26 | 2015-01-22 | Método y dispositivo de control de brillo de retroiluminación. |
Country Status (9)
Country | Link |
---|---|
US (1) | US9691332B2 (es) |
EP (1) | EP2991067B1 (es) |
JP (1) | JP6293909B2 (es) |
KR (1) | KR101735987B1 (es) |
CN (1) | CN104217704A (es) |
BR (1) | BR112015026104A2 (es) |
MX (1) | MX350740B (es) |
RU (1) | RU2634743C2 (es) |
WO (1) | WO2016029640A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104217704A (zh) * | 2014-08-26 | 2014-12-17 | 小米科技有限责任公司 | 一种背光亮度的控制方法及装置 |
CN104575439B (zh) * | 2015-02-15 | 2017-01-18 | 北京京东方多媒体科技有限公司 | 一种显示补偿方法、装置及显示设备 |
CN105575334B (zh) * | 2015-07-10 | 2018-11-06 | 宇龙计算机通信科技(深圳)有限公司 | 一种屏幕亮度调节方法及用户终端 |
CN107665694B (zh) * | 2016-07-29 | 2020-06-30 | 上海和辉光电有限公司 | 显示装置的亮度调整方法及系统 |
CN106603929B (zh) * | 2017-02-08 | 2021-03-23 | 惠州Tcl移动通信有限公司 | 一种基于移动终端的屏幕补光拍照方法及系统 |
CN108538258B (zh) * | 2017-03-06 | 2023-03-24 | 北京小米移动软件有限公司 | 调整背光电流的方法及装置、显示设备 |
CN109994079B (zh) * | 2018-01-02 | 2021-02-09 | 深圳市巨烽显示科技有限公司 | 一种显示器亮度校正方法、装置和系统 |
CN109040457B (zh) * | 2018-08-23 | 2021-01-26 | 维沃移动通信有限公司 | 一种屏幕亮度调节方法及移动终端 |
US11624200B2 (en) * | 2019-12-27 | 2023-04-11 | Darren Aronow | Ground mounting systems and methods for interactive property advertising devices |
CN111312180A (zh) * | 2020-03-19 | 2020-06-19 | 亚世光电股份有限公司 | 一种mcu控制的超长寿命led背光源pwm补偿方法及装置 |
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JP4527958B2 (ja) * | 2003-10-20 | 2010-08-18 | 富士通株式会社 | 液晶表示装置 |
ATE417454T1 (de) * | 2005-10-31 | 2008-12-15 | Research In Motion Ltd | Automatische helligkeitsanpassung für bildschirm und tastatur eines tragbaren elektronischen gerätes |
CN101135792A (zh) * | 2006-08-30 | 2008-03-05 | 恩益禧电子股份有限公司 | 移动终端和显示面板驱动器 |
CN101400199A (zh) * | 2007-09-25 | 2009-04-01 | 新巨企业股份有限公司 | 多灯管调光方法 |
WO2009101727A1 (ja) * | 2008-02-14 | 2009-08-20 | Sharp Kabushiki Kaisha | 表示装置 |
US8174483B2 (en) * | 2008-02-20 | 2012-05-08 | Computime, Ltd. | Automatic display unit activation |
KR101504157B1 (ko) * | 2008-10-28 | 2015-03-20 | 삼성디스플레이 주식회사 | 백라이트 어셈블리, 이를 포함하는 액정 표시 장치 및 그의제조 방법 |
CN101751870A (zh) * | 2008-12-03 | 2010-06-23 | 精联电子股份有限公司 | 可携式电子装置的迟滞式背光调整方法 |
CN101833926A (zh) * | 2009-03-13 | 2010-09-15 | 群康科技(深圳)有限公司 | 背光调整系统及方法 |
JP5291555B2 (ja) * | 2009-07-02 | 2013-09-18 | 東日本電気エンジニアリング株式会社 | モニタ装置及び画面輝度制御方法 |
CN201973648U (zh) * | 2011-01-12 | 2011-09-14 | 深圳绿大地光电有限公司 | 一种无级调节色温的led面板灯 |
US8654068B2 (en) | 2011-07-15 | 2014-02-18 | Apple Inc. | Enhanced resolution of luminance levels in a backlight unit of a display device |
JP2013073827A (ja) * | 2011-09-28 | 2013-04-22 | Sharp Corp | 照明機器の制御装置 |
CN103165081B (zh) * | 2011-12-19 | 2015-12-02 | Tcl光电科技(惠州)有限公司 | Led背光模组及其动态调光方法 |
CN202473191U (zh) * | 2012-01-19 | 2012-10-03 | 无锡爱森思电气科技有限公司 | 具有长寿命背光的数字液晶仪表 |
TWI455100B (zh) * | 2012-04-13 | 2014-10-01 | Wistron Corp | 背光控制方法與背光系統 |
CN102858054B (zh) * | 2012-07-11 | 2015-08-19 | 深圳市绎立锐光科技开发有限公司 | 固态发光装置、固态发光光源、照明装置及其控制方法 |
TWI557489B (zh) * | 2012-10-26 | 2016-11-11 | 鴻海精密工業股份有限公司 | 顯示器 |
CN103050097B (zh) * | 2013-01-21 | 2015-02-04 | 小米科技有限责任公司 | 调节背光灯亮度的方法及装置 |
JP2014149938A (ja) * | 2013-01-31 | 2014-08-21 | Sharp Corp | 発光装置 |
US9301369B2 (en) * | 2013-03-06 | 2016-03-29 | Pixtronix, Inc. | Display apparatus utilizing independent control of light sources for uniform backlight output |
CN203311821U (zh) * | 2013-04-28 | 2013-11-27 | 睿芯信息科技(上海)有限公司 | 液晶屏背光调节系统 |
CN104217704A (zh) * | 2014-08-26 | 2014-12-17 | 小米科技有限责任公司 | 一种背光亮度的控制方法及装置 |
-
2014
- 2014-08-26 CN CN201410423129.3A patent/CN104217704A/zh active Pending
-
2015
- 2015-01-22 RU RU2015144369A patent/RU2634743C2/ru active
- 2015-01-22 WO PCT/CN2015/071357 patent/WO2016029640A1/zh active Application Filing
- 2015-01-22 MX MX2015013652A patent/MX350740B/es active IP Right Grant
- 2015-01-22 BR BR112015026104A patent/BR112015026104A2/pt not_active IP Right Cessation
- 2015-01-22 JP JP2016544715A patent/JP6293909B2/ja active Active
- 2015-01-22 KR KR1020157026696A patent/KR101735987B1/ko active IP Right Grant
- 2015-05-13 US US14/710,614 patent/US9691332B2/en active Active
- 2015-08-26 EP EP15182591.6A patent/EP2991067B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2991067B1 (en) | 2016-12-07 |
EP2991067A1 (en) | 2016-03-02 |
KR20160034846A (ko) | 2016-03-30 |
MX2015013652A (es) | 2016-07-19 |
BR112015026104A2 (pt) | 2017-07-25 |
RU2015144369A (ru) | 2017-04-24 |
US9691332B2 (en) | 2017-06-27 |
JP6293909B2 (ja) | 2018-03-14 |
KR101735987B1 (ko) | 2017-05-29 |
RU2634743C2 (ru) | 2017-11-03 |
WO2016029640A1 (zh) | 2016-03-03 |
US20160063927A1 (en) | 2016-03-03 |
CN104217704A (zh) | 2014-12-17 |
JP2016538702A (ja) | 2016-12-08 |
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Legal Events
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