Invention Grant
- Patent Title: Display driver, electro-optical device, electronic apparatus, and mobile body
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Application No.: US16919183Application Date: 2020-07-02
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Publication No.: US11094241B2Publication Date: 2021-08-17
- Inventor: Daishi Kondo
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JPJP2019-125792 20190705
- Main IPC: G09G5/00
- IPC: G09G5/00 ; G09G3/20 ; G02F1/137
Abstract:
A display driver (100) includes terminals (TSEG1 and TSEG2) and a drive circuit (130). The terminal (TSEG1) can be connected to a segment electrode (ESEG1). The terminal (TSEG2) can be connected to a segment electrode (ESEG2) whose area is larger than the area of the segment electrode (ESEG1). The drive circuit (130) outputs a PWM segment drive signal (SSEG1) to the terminal (ESEG1), and outputs a PWM segment drive signal (SSEG2) to the terminal (TSEG2). When the same effective voltage is applied to the segment electrode (ESEG1) and the segment electrode (ESEG2), the duty ratio of the segment drive signal (SSEG1) is smaller than the duty ratio of the segment drive signal (ESEG2).
Public/Granted literature
- US20210005129A1 Display Driver, Electro-Optical Device, Electronic Apparatus, And Mobile Body Public/Granted day:2021-01-07
Information query
