Invention Grant
- Patent Title: Display device and self-calibration method for digital data driven subframes
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Application No.: US14966169Application Date: 2015-12-11
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Publication No.: US09911374B2Publication Date: 2018-03-06
- Inventor: Dongwon Park , Yongchul Kwon
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2014-0190752 20141226
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/3225 ; G09G3/3258

Abstract:
A display device is provided for dividing one frame period into a plurality of subframe periods, separating data of an input image on a per bit basis, mapping the data of the input image to the subframe periods, and representing gray levels of the input image. The display device includes a measurement unit configured to measure a current of a pixel; a luminance error calculation unit configured to calculate a rush current of the pixel emitting light at the measured current value, and to calculate a luminance error of the pixel based on the rush current; and a luminance error compensation unit configured to reduce an emission time of one of the subframe periods or remap the subframe periods to compensate for the luminance error.
Public/Granted literature
- US20160189620A1 DISPLAY DEVICE AND SELF-CALIBRATION METHOD THEREOF Public/Granted day:2016-06-30
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