DK2539880T3 - Fremgangsmåder og systemer til at reducere energiforbrug i dobbeltmodulationsskærme - Google Patents
Fremgangsmåder og systemer til at reducere energiforbrug i dobbeltmodulationsskærme Download PDFInfo
- Publication number
- DK2539880T3 DK2539880T3 DK11704903.1T DK11704903T DK2539880T3 DK 2539880 T3 DK2539880 T3 DK 2539880T3 DK 11704903 T DK11704903 T DK 11704903T DK 2539880 T3 DK2539880 T3 DK 2539880T3
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- DK
- Denmark
- Prior art keywords
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
- G09G2330/021—Power management, e.g. power saving
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- 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
Claims (8)
1. Styresystem til en skærm, der omfatter en baggrundsbelysning (12), som har en flerhed af individuelt styrbare lysemittere, der er konfigureret til at projicere lys på en frontmodulator (16), der har en flerhed af individuelt styrbare lystransmissionselementer, hvor styresystemet omfatter: en indlæsningsenhed (110), der er konfigureret til at modtage billeddata, der specificerer et ønsket billede ved en indledende opløsningsevne ("spatial resolution"); en downsampler (120), der er konfigureret til at downsample billeddataene til en flerhed af downsampleblokke ved en downsampleopløsningsevne, der er lavere end den indledende opløsningsevne og opnå en flerhed af værdier for hver downsampleblok; hvor billedværdierne omfatter en spidsværdi og en gennemsnitsværdi for hver downsampleblok; en billedværdiindstillingsindretning (130), der er konfigureret til at modtage billedværdierne for downsampleblokkene fra downsampleren, til at reducere gennemsnitsværdien for hver downsampleblok, der opfylder indstillingskriteriet, og til at tilvejebringe de reducerede gennemsnitsværdier til en baggrundsbelysnings behandlingspipeline (150), hvor baggrundsbelysnings-behandlingspipelinen er konfigureret til at bestemme drivniveauer for lysemitterne for baggrundsbelysningen baseret på de reducerede gennemsnitsværdioutput fra billedværdiindstillingsindretningen, således at de reducerede gennemsnitsværdier resulterer i en reduktion i strømforbruget for de tilsvarende lysemittere for baggrundsbelysningen; en lysfeltsimulator (160), der er konfigureret til at modtage baggrundsbelysnings-drivdata omkring drivniveauerne og til at omdanne baggrundsbelysnings-drivdata til et baggrundsbelysnings-belysningsmønster; og en frontmodulator-behandlingspipeline (170), der er konfigureret til at modtage billeddataene fra indlæsningsenheden og baggrundsbelysnings-belysningsmønstret fra lysfeltsimulatoren og til at bestemme styreniveauer for frontmodulatorens lystransmissionselementer; hvor indstillingskriteriet opfyldes, når spidsværdien er under et øvre vandmærke (UWM) , og gennemsnitsværdien er over et nedre vandmærke (LWM) , hvor billedværdier og øvre og nedre vandmærker er vist ved anvendelse af N bits, hvor N er et positivt helt tal; hvor det øvre vandmærke har en værdi på 2N-1-1, og det nedre vandmærke har en værdi på 2M - 1, hvor M er et positivt helt tal, der er mindre end N-l.
2. Styresystem ifølge krav 1, der omfatter et billedfiltreringselement, som er forbundet til at filtrere billedværdioutputtet med billedværdiindstillingsindretningen.
3. Styresystem ifølge krav 1, hvor billedværdiindstillingsindretningen genererer den reducerede gennemsnitsværdi ved at dividere gennemsnitsværdien med 2n, hvor n er et positivt helt tal.
4. Styresystem ifølge krav 1, hvor billedværdiindstillingsindretningen genererer den reducerede gennemsnitsværdi ved at reducere gennemsnitsværdien logaritmisk.
5. Styresystem ifølge krav 1, hvor billedværdiindstillingsindretningen genererer den reducerede gennemsnitsværdi ved at beregne en skaleret gennemsnitsværdi, der er baseret på et forhold for spidsværdien til det øvre vandmærke.
6. Styresystem ifølge krav 5, hvor billedværdiindstillingsindretningen tilføjer et offset til den skalerede gennemsnitsværdi.
7. Styresystem ifølge krav 1, hvor billedværdiindstillingsindretningen er konfigureret til at sammenligne den reducerede gennemsnitsværdi med en minimal gennemsnitlig tærskelværdi og tilvejebringe en original gennemsnitsværdi til baggrundsbelysnings-behandlingspipelinen, når den reducerede gennemsnitsværdi er under den minimale gennemsnitlige tærskelværdi.
8. Styresystem ifølge krav 7, hvor billedværdiindstillingsindretningen er konfigureret til at generere den reducerede gennemsnitsværdi ved iterativt at reducere gennemsnitsværdien, indtil en nuværende reduceret gennemsnitsværdi er under den minimale gennemsnitlige tærskelværdi, og vælge en tidligere reduceret gennemsnitsværdi til tilvejebringelse til baggrundsbelysningsbehandlingspipelinen .
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30676710P | 2010-02-22 | 2010-02-22 | |
PCT/US2011/024868 WO2011103083A1 (en) | 2010-02-22 | 2011-02-15 | Methods and systems for reducing power consumption in dual modulation displays |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2539880T3 true DK2539880T3 (da) | 2015-05-18 |
Family
ID=43859790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK11704903.1T DK2539880T3 (da) | 2010-02-22 | 2011-02-15 | Fremgangsmåder og systemer til at reducere energiforbrug i dobbeltmodulationsskærme |
Country Status (7)
Country | Link |
---|---|
US (1) | US8736643B2 (da) |
EP (1) | EP2539880B1 (da) |
KR (1) | KR101267304B1 (da) |
CN (1) | CN102770897B (da) |
DK (1) | DK2539880T3 (da) |
HK (1) | HK1173259A1 (da) |
WO (1) | WO2011103083A1 (da) |
Families Citing this family (11)
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WO2012030526A1 (en) | 2010-08-31 | 2012-03-08 | Dolby Laboratories Licensing Corporation | Method and apparatus for adjusting drive values for dual modulation displays |
US9224320B2 (en) | 2011-03-09 | 2015-12-29 | Dolby Laboratories Licensing Corporation | Projection display providing additional modulation and related methods |
KR102118309B1 (ko) | 2012-09-19 | 2020-06-03 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 양자점/리모트 인광 디스플레이 시스템 개선 |
KR102178411B1 (ko) * | 2013-03-08 | 2020-11-13 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 광 변환을 갖는 이중 변조 디스플레이 기술들 |
US9224323B2 (en) | 2013-05-06 | 2015-12-29 | Dolby Laboratories Licensing Corporation | Systems and methods for increasing spatial or temporal resolution for dual modulated display systems |
JP5911518B2 (ja) | 2014-01-29 | 2016-04-27 | キヤノン株式会社 | 表示装置、表示装置の制御方法、及び、プログラム |
JP6441956B2 (ja) | 2014-03-26 | 2018-12-19 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 各種ディスプレイにおけるグローバル光補償 |
CN104981766B (zh) * | 2014-04-28 | 2019-10-22 | 华为终端有限公司 | 一种在屏幕上显示数据的方法及显示控制装置 |
JP2016110158A (ja) * | 2016-01-25 | 2016-06-20 | キヤノン株式会社 | 表示装置、表示装置の制御方法、プログラム、及び、処理装置 |
CN111933086B (zh) * | 2020-08-19 | 2022-01-21 | 惠科股份有限公司 | 显示装置及其分辨率降低的方法 |
US11594189B2 (en) * | 2020-09-14 | 2023-02-28 | Apple Inc. | Backlight reconstruction and compensation-based throttling |
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2011
- 2011-02-15 DK DK11704903.1T patent/DK2539880T3/da active
- 2011-02-15 KR KR1020127021723A patent/KR101267304B1/ko not_active IP Right Cessation
- 2011-02-15 CN CN201180010427.4A patent/CN102770897B/zh not_active Expired - Fee Related
- 2011-02-15 WO PCT/US2011/024868 patent/WO2011103083A1/en active Application Filing
- 2011-02-15 US US13/578,251 patent/US8736643B2/en active Active
- 2011-02-15 EP EP11704903.1A patent/EP2539880B1/en not_active Not-in-force
-
2013
- 2013-01-11 HK HK13100486.6A patent/HK1173259A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN102770897A (zh) | 2012-11-07 |
KR101267304B1 (ko) | 2013-05-27 |
EP2539880A1 (en) | 2013-01-02 |
US8736643B2 (en) | 2014-05-27 |
CN102770897B (zh) | 2015-04-22 |
HK1173259A1 (en) | 2013-05-10 |
EP2539880B1 (en) | 2015-03-18 |
WO2011103083A1 (en) | 2011-08-25 |
US20120306943A1 (en) | 2012-12-06 |
KR20120117887A (ko) | 2012-10-24 |
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