Invention Grant
- Patent Title: Locally different gamma mapping for multi-pixel density OLED display
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Application No.: US17260871Application Date: 2020-07-29
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Publication No.: US11783750B2Publication Date: 2023-10-10
- Inventor: Sangmoo Choi , Janghoon Song , Taesung Kim
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Fish & Richardson P.C.
- International Application: PCT/US2020/043951 2020.07.29
- International Announcement: WO2021/030054A 2021.02.18
- Date entered country: 2021-01-15
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/3208

Abstract:
A method for driving an organic light emitting diode (OLED) display having a first area with a first pixel density and a second area with a second pixel density higher than the first pixel density, the method includes receiving image content that specifies a grayscale value for both a first pixel in the first area and a second pixel in the second area, providing, based on the grayscale value, a first voltage to the first pixel in the first area, and providing, based on the grayscale value, a second voltage that is different from the first voltage to the second pixel in the second area, where the second voltage causes the second pixel to emit light less brightly than the first voltage causes the first pixel to emit light.
Public/Granted literature
- US20220309983A1 LOCALLY DIFFERENT GAMMA MAPPING FOR MULTI-PIXEL DENSITY OLED DISPLAY Public/Granted day:2022-09-29
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