Invention Grant
- Patent Title: Display driver adjusting output timings of driving voltages at output channels
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Application No.: US17403898Application Date: 2021-08-17
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Publication No.: US11676527B2Publication Date: 2023-06-13
- Inventor: Koji Higuchi
- Applicant: LAPIS Semiconductor Co., Ltd.
- Applicant Address: JP Yokohama
- Assignee: LAPIS Semiconductor Co., Ltd.
- Current Assignee: LAPIS Semiconductor Co., Ltd.
- Current Assignee Address: JP Yokohama
- Agency: JCIPRNET
- Priority: JP 2020145605 2020.08.31
- Main IPC: G09G3/36
- IPC: G09G3/36 ; G09G3/20 ; G09G3/3225

Abstract:
A display driver is provided. A designation of an output timing at each of first and kth output channels is received, and first and second delay pulse signals are generated at respective output timings of the first and the kth output channels. First to kth first direction delay shift signals where a first delay pulse signal is present after a delay increased for each output channel from the first toward the kth output channel are generated. First to kth second direction delay shift signals where a second delay pulse signal is present after the delay increased for each output channel from the kth toward the first output channel are generated. One whose timing at which a delay pulse signal is present is earlier is selected from each of the direction delay shift signals corresponding to the same output channel, and set as first to kth output timing signals.
Public/Granted literature
- US20220068188A1 DISPLAY DRIVER Public/Granted day:2022-03-03
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