Invention Grant
- Patent Title: Degradation compensator of organic light emitting diode display device
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Application No.: US15092155Application Date: 2016-04-06
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Publication No.: US09905162B2Publication Date: 2018-02-27
- Inventor: Hyunseuk Yoo
- Applicant: Samsung Display Co., LTD.
- Applicant Address: KR Gyeonggi-Do
- Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee: SAMSUNG DISPLAY CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Cantor Colburn LLP
- Priority: KR10-2015-0088541 20150622
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/3225 ; G09G3/20 ; G09G5/22 ; G09G3/3233

Abstract:
Degradation compensator includes a compressor which generates a block-level compression stress matrix (“BCSM”) representing a degradation level of a block included in a frame by R, G, and B input signals of the block, an updater update a frame-level accumulated compression stress matrix (“FACSM”) by adding the BCSM, an error corrector which executes error-correction encoding to elements of a block-level accumulated compression stress matrix (“BACSM”) included in the FACSM, writes encoded elements as a storage data of a non-volatile memory device when a power supply is stopped, executes error-correction decoding to the storage data and writes the decoded storage data as the FACSM of the volatile memory when the power supply is started, a restorer which generates a block-level accumulated stress matrix (“BASM”), and an internal compensator which generates compensated R, G, and B output signals.
Public/Granted literature
- US20160372033A1 DEGRADATION COMPENSATOR OF ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE Public/Granted day:2016-12-22
Information query
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