DK2240924T3 - Mindskelse af lcd-flimren - Google Patents
Mindskelse af lcd-flimren Download PDFInfo
- Publication number
- DK2240924T3 DK2240924T3 DK09701218.1T DK09701218T DK2240924T3 DK 2240924 T3 DK2240924 T3 DK 2240924T3 DK 09701218 T DK09701218 T DK 09701218T DK 2240924 T3 DK2240924 T3 DK 2240924T3
- Authority
- DK
- Denmark
- Prior art keywords
- image
- backlight
- light
- skirt
- computer
- 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
- 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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
-
- 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
- G09G2320/066—Adjustment of display parameters for control of contrast
-
- 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
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
Claims (15)
1. Fremgangsmåde til at drive et display, der omfatter et moduleret baggrundslys og en frontmodulator, som belyses af det modulerede baggrundslys, hvilken fremgangsmåde omfatter de følgende trin: beregning af et første frontmodulatorbillede og et første baggrundslysbillede fra billeddata, der repræsenterer et indgangsbillede bestemmelse af placeringer af mindst ét skørt, hvor en første simuleret visning af indgangsbilledet er lysere end indgangsbilledet på grund af lækage af lys fra baggrundslyset gennem frontmodulatoren simulering af et slørende lys, der er knyttet til en perfekt visning af indgangsbilledet beregning af et billede med undertrykkelse af baggrundslys, hvilket billede er konfigureret til at reducere baggrundslysets lysstyrke i områder, hvor skørtet overstiger det simulerede slørende lys beregning af et andet baggrundslysbillede i lys af billedet med undertrykkelse af baggrundslys bestemmelse af manglende lyskilder ved subtraktion af en anden simuleret visning af indgangsbilledet fra indgangsbilledet, hvorved den anden simulerede visning af indgangsbilledet beregnes ud fra det andet baggrundslysbillede beregning af et ønsket lys for hver manglende lyskilde bygning af et andet frontmodulatorbillede på basis af det andet baggrundslysbillede for et målbillede, der er summen af indgangsbilledet og de beregnede ønskede lys.
2. Fremgangsmåde ifølge krav 1, hvorved det modulerede baggrundslys har en lavere opløsning end frontmodulatoren, og hvorved det første baggrundslysbillede opnåes ved nedsampling af billeddataene.
3. Fremgangsmåde ifølge krav 2, hvorved nedsamplingen omfatter gennemsnitsberegning og filtrering af billeddataene.
4. Fremgangsmåde ifølge et af kravene 1 til 3, hvorved frontmodulatoren omfatter et LCD-panel.
5. Fremgangsmåde ifølge et af kravene 1 til 3, hvorved frontmodulatoren omfatter et LCD-panel, og det modulerede baggrundslys omfatter en LED-matrix, og mindst ét skørt er et LED-skørt.
6. Fremgangsmåde ifølge krav 2 eller krav 3, hvorved frontmodulatoren omfatter et LCD-panel, og det modulerede baggrundslys omfatter en LED-matrix, og hvorved det mindst ene skørt er et LED-skørt, og hvorved trinnet med at bestemme placeringerne af det mindst ene skørt omfatter: bestemmelse af den første simulerede visning af indgangsbilledet, idet LCD-panelets minimumstransmittans tages i betragtning bestemmelse af placeringerne af det mindst ene skørt ved subtraktion af indgangsbilledet fra den første simulerede visning, således at der opnås et skørtbillede.
7. Fremgangsmåde ifølge krav 6, hvorved trinnet med simuleringen af det slørende lys anvender en konvolutionskerne, hvorved der opnås et konvolutionsbillede.
8. Fremgangsmåde ifølge krav 7, hvorved de områder, hvor skørtet overstiger det simulerede slørende lys, identificeres ved: opnåelse af et differensbillede ved subtraktion af konvolutionsbilledet fra skørtbilledet.
9. Fremgangsmåde ifølge krav 8, hvorved trinnet med beregningen af billedet med undertrykkelse af baggrundslys omfatter: beregning af et multiplikatorbillede, der indeholder en forud bestemt multiplikator ved hver pixel på differensbilledet, hvor pixlens værdi på differensbilledet overstiger en forud bestemt værdi, og som indeholder enhedsskalering ved andre pixels nedsampling af multiplikatorbilledet til baggrundslysets opløsning for at opnå billedet med undertrykkelse af baggrundslys.
10. Fremgangsmåde ifølge krav 9, hvorved trinnet med bestemmelsen af manglende lyskilder omfatter: beregning af den anden simulerede visning af indgangsbilledet på baggrund af det første frontmodulatorbillede og det andet baggrundslysbillede at sætte pixels, som har negative værdier i det billede, som fås ved subtraktion af den anden simulerede visning af indgangsbilledet fra indgangsbilledet, til nul for at opnå et kildebillede.
11. Fremgangsmåden ifølge krav 10, hvorved trinnet med beregningen af det ønskede lys omfatter konvolution ved anvendelse af kildebilledet og den konvolutionskerne, der blev anvendt i trinnet med simulering af det slørede lys, hvorved de ønskede lys opnås.
12. Fremgangsmåde ifølge et af kravene 1 til 11, hvorved: fremgangsmåden er integreret i et sæt computerinstruktioner, der er lagret på et computerlæsbart medie computerinstruktionerne, når de indlæses i en computer, får computeren til at udføre trinene i fremgangsmåden.
13. Fremgangsmåde ifølge krav 12, hvorved computerinstruktionen er kompilerede computerinstruktioner, der er lagret som et eksekverbart program på det computerlæsbare medie.
14. Computerlæsbare medie og sæt af instruktioner, der er lagret på et computerlæsbart medie, som, når de indlæses i en computer, får computeren til at udføre trinnene ifølge et af kravene 1 til 13.
15. Display, der omfatter: en frontmodulator et baggrundslys, der er konfigureret til at producere et moduleret lys, som belyser frontmodulatoren en kontroller, der er konfigureret til at producere et kontrolsignal til baggrundslys og et kontrolsignal til frontmodulator, ud fra et billedsignal, hvor kontrolleren er konfigureret til at udføre trinnene ifølge et af kravene 1 til 13.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2010408P | 2008-01-09 | 2008-01-09 | |
PCT/US2009/030207 WO2009089211A1 (en) | 2008-01-09 | 2009-01-06 | Mitigation of lcd flare |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2240924T3 true DK2240924T3 (da) | 2016-07-04 |
Family
ID=40409787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK09701218.1T DK2240924T3 (da) | 2008-01-09 | 2009-01-06 | Mindskelse af lcd-flimren |
Country Status (8)
Country | Link |
---|---|
US (1) | US8698729B2 (da) |
EP (1) | EP2240924B1 (da) |
JP (2) | JP5498956B2 (da) |
CN (1) | CN101911168B (da) |
BR (1) | BRPI0906812A2 (da) |
DK (1) | DK2240924T3 (da) |
RU (1) | RU2443072C1 (da) |
WO (1) | WO2009089211A1 (da) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US8531380B2 (en) * | 2008-07-22 | 2013-09-10 | Sharp Laboratories Of America, Inc. | Methods and systems for area adaptive backlight management |
PL2364458T3 (pl) | 2008-11-14 | 2016-10-31 | Niestandardowe PSF stosujące źródła światła w klastrach | |
CN102349021B (zh) * | 2009-04-15 | 2016-05-04 | 杜比实验室特许公司 | 具有空间可变背光源的薄显示器 |
CN102770897B (zh) | 2010-02-22 | 2015-04-22 | 杜比实验室特许公司 | 用于降低双调制显示器中的功耗的方法和系统 |
US20110304597A1 (en) * | 2010-06-09 | 2011-12-15 | Apple Inc. | Low power backlight for display |
TWI451387B (zh) | 2010-12-17 | 2014-09-01 | Dolby Lab Licensing Corp | 用於顯示面板之量子點技術 |
WO2013188298A2 (en) | 2012-06-15 | 2013-12-19 | Dolby Laboratories Licensing Corporation | Systems and methods for controlling dual modulation displays |
US20140002769A1 (en) * | 2012-06-28 | 2014-01-02 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Side-edge non-uniform duty ratio backlight driving method |
CN104584113B (zh) * | 2012-08-15 | 2017-03-08 | 富士胶片株式会社 | 显示装置 |
EP2994905B1 (en) | 2013-05-07 | 2021-06-30 | Dolby Laboratories Licensing Corporation | Multi-half-tone imaging and dual modulation projection/dual modulation laser projection |
CN106537899B (zh) * | 2014-05-15 | 2022-01-18 | Mtt创新公司 | 优化用于多投影仪系统的驱动方案 |
US10163408B1 (en) * | 2014-09-05 | 2018-12-25 | Pixelworks, Inc. | LCD image compensation for LED backlighting |
US9903563B2 (en) | 2016-04-11 | 2018-02-27 | Landscape Forms, Inc. | Low glare LED luminaire |
US10720091B2 (en) * | 2017-02-16 | 2020-07-21 | Microsoft Technology Licensing, Llc | Content mastering with an energy-preserving bloom operator during playback of high dynamic range video |
CN109448640A (zh) * | 2018-10-29 | 2019-03-08 | 天津大学 | 一种基于lcd-led双调制高动态显示器的hdr图像显示方法 |
US10699673B2 (en) * | 2018-11-19 | 2020-06-30 | Facebook Technologies, Llc | Apparatus, systems, and methods for local dimming in brightness-controlled environments |
TWI718895B (zh) * | 2020-03-10 | 2021-02-11 | 友達光電股份有限公司 | 顯示器的光學補償系統及其光學補償方法 |
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JP2007240858A (ja) | 2006-03-08 | 2007-09-20 | Mitsubishi Electric Corp | 照明装置、映像表示装置、および映像信号制御方法 |
JP2007322882A (ja) | 2006-06-02 | 2007-12-13 | Sony Corp | 表示装置および表示制御方法 |
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TW200912838A (en) * | 2007-07-04 | 2009-03-16 | Koninkl Philips Electronics Nv | Method and system for providing an exercise goal |
JP4655079B2 (ja) | 2007-11-06 | 2011-03-23 | ソニー株式会社 | 液晶表示装置、液晶表示モジュールおよび液晶表示装置の駆動方法 |
-
2009
- 2009-01-06 EP EP09701218.1A patent/EP2240924B1/en not_active Not-in-force
- 2009-01-06 JP JP2010542311A patent/JP5498956B2/ja not_active Expired - Fee Related
- 2009-01-06 WO PCT/US2009/030207 patent/WO2009089211A1/en active Application Filing
- 2009-01-06 BR BRPI0906812-0A patent/BRPI0906812A2/pt not_active Application Discontinuation
- 2009-01-06 CN CN2009801018279A patent/CN101911168B/zh not_active Expired - Fee Related
- 2009-01-06 US US12/811,496 patent/US8698729B2/en active Active
- 2009-01-06 DK DK09701218.1T patent/DK2240924T3/da active
- 2009-01-06 RU RU2010133148/07A patent/RU2443072C1/ru not_active IP Right Cessation
-
2012
- 2012-12-17 JP JP2012274608A patent/JP2013077020A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2009089211A1 (en) | 2009-07-16 |
RU2443072C1 (ru) | 2012-02-20 |
US8698729B2 (en) | 2014-04-15 |
JP5498956B2 (ja) | 2014-05-21 |
CN101911168A (zh) | 2010-12-08 |
JP2011511306A (ja) | 2011-04-07 |
EP2240924A1 (en) | 2010-10-20 |
EP2240924B1 (en) | 2016-04-27 |
CN101911168B (zh) | 2013-11-27 |
BRPI0906812A2 (pt) | 2015-07-14 |
US20100277515A1 (en) | 2010-11-04 |
JP2013077020A (ja) | 2013-04-25 |
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