Invention Grant
- Patent Title: Further reduction of power consumption in display device with low-frequency driving
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Application No.: US18017906Application Date: 2020-08-03
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Publication No.: US11887541B2Publication Date: 2024-01-30
- Inventor: Seiichi Uchida
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- International Application: PCT/JP2020/029644 2020.08.03
- International Announcement: WO2022/029830A 2022.02.10
- Date entered country: 2023-01-25
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; G09G3/3266

Abstract:
A display device includes: a plurality of scanning lines; a plurality of data lines; a plurality of light-emission control lines; a plurality of pixel circuits each including a light-emitting element; a scanning line drive circuit that drives the scanning lines based on a first clock signal; a data line drive circuit that drives the data lines; a light-emission control line drive circuit that drives the light-emission control lines based on a second clock signal; and a display control circuit that outputs at least the first and second clock signals. The display control circuit classifies a frame period into a scanning period and a pause period, and during the pause period, the display control circuit stops the first clock signal and makes a frequency of the second clock signal lower than that during the scanning period. This further reduces the power consumption of the display device that performs low-frequency driving.
Public/Granted literature
- US20230274698A1 DISPLAY DEVICE AND METHOD FOR DRIVING SAME Public/Granted day:2023-08-31
Information query
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