Invention Grant
- Patent Title: Techniques for dual modulation display with light conversion
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Application No.: US14370115Application Date: 2014-02-13
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Publication No.: US09940881B2Publication Date: 2018-04-10
- Inventor: Ajit Ninan , Chun Chi Wan
- Applicant: DOLBY LABORATORIES LICENSING CORPORATION
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- International Application: PCT/US2014/016212 WO 20140213
- International Announcement: WO2014/137565 WO 20140912
- Main IPC: G09G3/34
- IPC: G09G3/34 ; G09G3/36 ; H05B33/08 ; G09G3/32 ; G02F1/1335

Abstract:
Techniques for driving a dual modulation display include generating backlight drive signals to drive individually-controllable illumination sources. The illumination sources emit first light onto a light conversion layer. The light conversion layer converts the first light into second light. The light conversion layer can include quantum dots or phosphor materials. Modulation drive signals are generated to determine transmission of the second light through individual subpixels of the display. These modulation drive signals can be adjusted based on one or more light field simulations. The light field simulations can include: (i) a color shift for a pixel based on a point spread function of the illumination sources; (ii) binning difference of individual illumination sources; (iii) temperature dependence of display components on performance; or (iv) combinations thereof.
Public/Granted literature
- US20150287368A1 TECHNIQUES FOR DUAL MODULATION DISPLAY WITH LIGHT CONVERSION Public/Granted day:2015-10-08
Information query
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