- Patent Title: Circuit and method for compensating display defect in video display
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Application No.: US12318023Application Date: 2008-12-19
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Publication No.: US08379034B2Publication Date: 2013-02-19
- Inventor: Jong Hee Hwang , Hye Jin Kim , Ju Seong Park
- Applicant: Jong Hee Hwang , Hye Jin Kim , Ju Seong Park
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: McKenna, Long & Alridge, LLP.
- Priority: KR10-2008-0053079 20080605
- Main IPC: G06T1/60
- IPC: G06T1/60 ; G09G3/36 ; G09G5/10

Abstract:
Circuit for compensating a display defect in a video display device of the present invention includes a memory having position information on a plurality of regular patterned defective regions of a display panel, gray scale section information, a defect level data on each of the regular patterned defective regions, and a plurality of compensation data on each of the defect level data stored therein, a first compensation unit, upon reception of data to be displayed on the regular patterned defective regions, for determining defect level data on the regular patterned defective regions of the data to be displayed, selecting a compensation data set on the defect level data determined thus, and selecting a compensation data on the data to be displayed from the compensation data selected thus, for compensating the data to be displayed, and a second compensator for distributing the data compensated thus at the first compensation unit spatially and temporally by using dither patterns for making fine compensation, thereby suppressing size increase of the compensation data.
Public/Granted literature
- US20090303243A1 Circuit and method for compensating display defect in video display Public/Granted day:2009-12-10
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