Invention Grant
- Patent Title: Reference voltage generation circuit, display driver, electro-optical device, and electronic instrument
- Patent Title (中): 参考电压发生电路,显示驱动器,电光器件和电子仪器
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Application No.: US11365912Application Date: 2006-03-01
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Publication No.: US07663586B2Publication Date: 2010-02-16
- Inventor: Akira Morita
- Applicant: Akira Morita
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2005-057197 20050302
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A reference voltage generation circuit, including: first to Jth (J is an integer greater than one) gamma correction data registers in which gamma correction data for generating a plurality of reference voltages is set; and a reference voltage select circuit which selects K select voltages from first to Lth (L is an integer greater than two, and K is a natural number smaller than L) select voltages arranged in potential descending order or potential ascending order and outputs the K select voltages as first to Kth reference voltages in potential descending order or potential ascending order, based on the gamma correction data set in one of the first to Jth gamma correction data registers, wherein the first to Kth reference voltages are output as the reference voltages.
Public/Granted literature
- US20060197734A1 Reference voltage generation circuit, display driver, electro-optical device, and electronic instrument Public/Granted day:2006-09-07
Information query
IPC分类: