Invention Grant
- Patent Title: Display device and method for driving same
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Application No.: US17797493Application Date: 2020-02-14
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Publication No.: US12027119B2Publication Date: 2024-07-02
- Inventor: Kaoru Yamamoto
- 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/JP2020/005768 2020.02.14
- International Announcement: WO2021/161505A 2021.08.19
- Date entered country: 2022-08-04
- Main IPC: G09G3/3233
- IPC: G09G3/3233

Abstract:
In a display device having an external compensation function, a decrease in compensation accuracy caused by coupling noise generated in a data signal line is prevented. An emission driver that applies a light-emission control signal (EM) to each of a plurality of light-emission control lines includes a shift register formed of a plurality of unit circuits. The shift register generates a light-emission control signal (EM) to be applied to each light-emission control line on the basis of a plurality of light-emission control clock signals (ECK1 to ECK4) outputted from a display control circuit. The display control circuit stops the outputs of the plurality of light-emission control clock signals (ECK1 to ECK4) throughout a current measurement period in which a current corresponding to the characteristic of the drive transistor is measured.
Public/Granted literature
- US20230057970A1 DISPLAY DEVICE AND METHOD FOR DRIVING SAME Public/Granted day:2023-02-23
Information query
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