Invention Grant
- Patent Title: Driving method for liquid crystal display apparatus, liquid crystal display apparatus, and electronic device
- Patent Title (中): 液晶显示装置,液晶显示装置和电子装置的驱动方法
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Application No.: US12704970Application Date: 2010-02-12
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Publication No.: US08237647B2Publication Date: 2012-08-07
- Inventor: Hiroyuki Hosaka
- Applicant: Hiroyuki Hosaka
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Maschoff Gilmore & Israelsen
- Priority: JP2009-033606 20090217
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A driving method for a liquid crystal display apparatus, a liquid crystal layer sandwiched between a pixel electrode and a counter electrode, and that controls a transmitted light in the liquid crystal layer by dividing a single frame period into multiple subfield periods and applying an on/off binary data signal between the pixel electrode and the counter electrode in each subfield period. When a counter electrode potential applied to the counter electrode is used as a reference and a voltage higher than the reference is taken as a positive-polarity voltage and a voltage lower than the reference is taken as a negative-polarity voltage, the data signal is converted to the positive-polarity voltage and negative-polarity voltage alternately and cyclically every a cyclical period having subfield period or every several subfield periods. Further, the length of half the cyclical period is no less than 1.6 ms.
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