BR112016001118A2 - Método e dispositivo de controle de luz de fundo - Google Patents
Método e dispositivo de controle de luz de fundoInfo
- Publication number
- BR112016001118A2 BR112016001118A2 BR112016001118A BR112016001118A BR112016001118A2 BR 112016001118 A2 BR112016001118 A2 BR 112016001118A2 BR 112016001118 A BR112016001118 A BR 112016001118A BR 112016001118 A BR112016001118 A BR 112016001118A BR 112016001118 A2 BR112016001118 A2 BR 112016001118A2
- Authority
- BR
- Brazil
- Prior art keywords
- image
- grayscale values
- display
- pixels
- display block
- 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
- 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
- G09G3/20—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
- G09G3/36—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 using liquid crystals
-
- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- 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
- G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
-
- 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
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
MÉTODO E DISPOSITIVO DE CONTROLE DE LUZ DE FUNDO. A presente revelação refere-se a um método e dispositivo de controle de luz de fundo, pertencentes ao campo técnico da exibição de tela. O método inclui: para cada bloco de exibição em uma tela, adquirir (202, 301) valores de escala de cinza de respectivos pixels em uma imagem precisando ser exibida no bloco de exibição, a tela inclui pelo menos um bloco de exibição; adquirir (204, 302) um valor mínimo entre um número predeterminado de valores de escala de cinza máximos de acordo com os valores de escala de cinza de respectivos pixels; e se o valor mínimo atinge um limiar de valor de escala de cinza, controlar os valores de escala de cinza de respectivos pixels para serem constantes, e controlar uma luminosidade de luz de fundo do bloco de exibição para manter uma luminosidade de luz de fundo máxima (206, 303). A presente divulgação resolve o problema que o contraste de imagem é significativamente reduzido e o efeito de exibição da imagem é seriamente afetado devido a adotar a tecnologia CABC quando os pixels tendo valores de escala de cinza elevados aparecem na imagem, e consegue o efeito que nenhum processo CABC é realizado na imagem quando os pixels tendo valores de escala de cinza elevados aparecem na imagem, assim evitando ou aliviando a perda do contraste de imagem, e melhorando o efeito de qualidade e exibição de imagem.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410856892 | 2014-12-31 | ||
CN201510009475.1A CN104599642B (zh) | 2014-12-31 | 2015-01-08 | 背光控制方法和装置 |
PCT/CN2015/093299 WO2016107267A1 (zh) | 2014-12-31 | 2015-10-30 | 背光控制方法和装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112016001118A2 true BR112016001118A2 (pt) | 2017-09-05 |
Family
ID=53125382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112016001118A BR112016001118A2 (pt) | 2014-12-31 | 2015-10-30 | Método e dispositivo de controle de luz de fundo |
Country Status (9)
Country | Link |
---|---|
US (1) | US20160189636A1 (pt) |
EP (1) | EP3040974B1 (pt) |
JP (1) | JP2017510856A (pt) |
KR (1) | KR101779689B1 (pt) |
CN (1) | CN104599642B (pt) |
BR (1) | BR112016001118A2 (pt) |
MX (1) | MX357915B (pt) |
RU (1) | RU2638080C2 (pt) |
WO (1) | WO2016107267A1 (pt) |
Families Citing this family (32)
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CN104599642B (zh) * | 2014-12-31 | 2017-05-03 | 小米科技有限责任公司 | 背光控制方法和装置 |
CN105185327B (zh) | 2015-09-01 | 2018-02-06 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105047142B (zh) | 2015-09-01 | 2017-11-24 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105185328B (zh) | 2015-09-01 | 2018-01-09 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105139809B (zh) | 2015-09-01 | 2018-06-12 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105161064B (zh) | 2015-09-17 | 2018-06-26 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105118474B (zh) | 2015-10-16 | 2017-11-07 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105185353B (zh) | 2015-10-16 | 2018-05-18 | 青岛海信电器股份有限公司 | 液晶显示亮度控制方法和装置以及液晶显示设备 |
CN105261332B (zh) * | 2015-11-10 | 2017-12-29 | 深圳市华星光电技术有限公司 | 一种动态背光局部控制液晶显示的方法、系统及装置 |
CN105336298B (zh) * | 2015-11-13 | 2019-01-11 | 合一智能科技(深圳)有限公司 | 液晶显示器及其亮度调节方法和装置 |
CN105717436A (zh) * | 2016-01-27 | 2016-06-29 | 江西联星显示创新体有限公司 | 采用cabc信号来自动改变led电压的检测方法及系统 |
CN106023926B (zh) * | 2016-07-15 | 2019-06-11 | 武汉华星光电技术有限公司 | 触控显示装置以及改善触控显示装置的方法 |
KR102615070B1 (ko) * | 2016-10-12 | 2023-12-19 | 삼성전자주식회사 | 디스플레이 장치, 및 그 제어방법 |
CN106340278B (zh) * | 2016-10-13 | 2019-02-22 | 深圳市华星光电技术有限公司 | 一种显示面板的驱动方法及装置 |
CN106384577B (zh) * | 2016-12-14 | 2019-03-01 | 维沃移动通信有限公司 | 一种显示屏的背光调整方法及移动终端 |
CN106775549B (zh) * | 2016-12-14 | 2019-03-26 | 维沃移动通信有限公司 | 一种cabc模块控制方法及电子设备 |
CN106782382A (zh) * | 2016-12-28 | 2017-05-31 | 武汉华星光电技术有限公司 | 一种显示面板及显示装置 |
CN106817753B (zh) * | 2017-03-10 | 2020-04-17 | Oppo广东移动通信有限公司 | 一种切换背景灰阶进行省电的方法、装置及移动终端 |
CN106937371B (zh) * | 2017-03-10 | 2020-05-12 | Oppo广东移动通信有限公司 | 一种切换背景灰阶进行省电的方法、装置及移动终端 |
CN106933329B (zh) * | 2017-03-10 | 2019-10-01 | Oppo广东移动通信有限公司 | 一种移动终端适配节能等级的方法、装置及移动终端 |
CN106710536A (zh) * | 2017-03-10 | 2017-05-24 | 广东欧珀移动通信有限公司 | 调整显示屏亮度的方法、装置及终端 |
CN109120859B (zh) * | 2017-06-26 | 2022-03-25 | 深圳光峰科技股份有限公司 | 一种影像数据处理装置及拍摄设备、显示系统 |
CN107240382A (zh) | 2017-07-31 | 2017-10-10 | 武汉华星光电技术有限公司 | 一种显示组件及用于显示设备的电路组件 |
CN107992182B (zh) | 2017-12-05 | 2021-06-29 | 北京小米移动软件有限公司 | 显示界面图像的方法和装置 |
US11132958B2 (en) * | 2018-01-25 | 2021-09-28 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
KR102552379B1 (ko) * | 2018-01-25 | 2023-07-07 | 삼성전자주식회사 | 디스플레이 장치 및 그 제어 방법. |
CN110390911B (zh) * | 2018-04-19 | 2022-03-25 | 中兴通讯股份有限公司 | 一种电子设备的显示屏背光亮度控制方法和电子设备 |
CN110689855B (zh) * | 2018-07-06 | 2022-08-16 | 鸿富锦精密工业(深圳)有限公司 | 显示装置的显示亮度调节方法、显示亮度调节装置及显示装置 |
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-
2015
- 2015-01-08 CN CN201510009475.1A patent/CN104599642B/zh active Active
- 2015-10-30 KR KR1020157036862A patent/KR101779689B1/ko active IP Right Grant
- 2015-10-30 BR BR112016001118A patent/BR112016001118A2/pt active Search and Examination
- 2015-10-30 MX MX2016000377A patent/MX357915B/es active IP Right Grant
- 2015-10-30 WO PCT/CN2015/093299 patent/WO2016107267A1/zh active Application Filing
- 2015-10-30 RU RU2016100188A patent/RU2638080C2/ru active
- 2015-10-30 JP JP2016567122A patent/JP2017510856A/ja active Pending
- 2015-12-30 US US14/984,164 patent/US20160189636A1/en not_active Abandoned
- 2015-12-31 EP EP15203237.1A patent/EP3040974B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN104599642A (zh) | 2015-05-06 |
RU2016100188A (ru) | 2017-07-17 |
RU2638080C2 (ru) | 2017-12-11 |
CN104599642B (zh) | 2017-05-03 |
US20160189636A1 (en) | 2016-06-30 |
JP2017510856A (ja) | 2017-04-13 |
KR20160092485A (ko) | 2016-08-04 |
WO2016107267A1 (zh) | 2016-07-07 |
EP3040974A1 (en) | 2016-07-06 |
EP3040974B1 (en) | 2018-11-07 |
MX357915B (es) | 2018-07-30 |
MX2016000377A (es) | 2016-08-26 |
KR101779689B1 (ko) | 2017-09-18 |
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