MX2015013652A - Metodo y dispositivo de control de brillo de retroiluminacion. - Google Patents

Metodo y dispositivo de control de brillo de retroiluminacion.

Info

Publication number
MX2015013652A
MX2015013652A MX2015013652A MX2015013652A MX2015013652A MX 2015013652 A MX2015013652 A MX 2015013652A MX 2015013652 A MX2015013652 A MX 2015013652A MX 2015013652 A MX2015013652 A MX 2015013652A MX 2015013652 A MX2015013652 A MX 2015013652A
Authority
MX
Mexico
Prior art keywords
backlight lamp
target
current
backlight
brightness
Prior art date
Application number
MX2015013652A
Other languages
English (en)
Other versions
MX350740B (es
Inventor
Anyu Liu
Guosheng Li
Wei Feng
Original Assignee
Xiaomi Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xiaomi Inc filed Critical Xiaomi Inc
Publication of MX2015013652A publication Critical patent/MX2015013652A/es
Publication of MX350740B publication Critical patent/MX350740B/es

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.
MX2015013652A 2014-08-26 2015-01-22 Método y dispositivo de control de brillo de retroiluminación. MX350740B (es)

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 true MX2015013652A (es) 2016-07-19
MX350740B 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)

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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
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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
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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

Also Published As

Publication number Publication date
EP2991067B1 (en) 2016-12-07
US20160063927A1 (en) 2016-03-03
KR20160034846A (ko) 2016-03-30
JP6293909B2 (ja) 2018-03-14
BR112015026104A2 (pt) 2017-07-25
US9691332B2 (en) 2017-06-27
CN104217704A (zh) 2014-12-17
RU2015144369A (ru) 2017-04-24
EP2991067A1 (en) 2016-03-02
MX350740B (es) 2017-09-14
RU2634743C2 (ru) 2017-11-03
KR101735987B1 (ko) 2017-05-29
WO2016029640A1 (zh) 2016-03-03
JP2016538702A (ja) 2016-12-08

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