Invention Grant
- Patent Title: Display device drive method and display device
-
Application No.: US16494810Application Date: 2017-03-22
-
Publication No.: US10861392B2Publication Date: 2020-12-08
- Inventor: Makoto Yokoyama , Fumiyuki Kobayashi , Junichi Yamada
- 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/JP2017/011348 WO 20170322
- International Announcement: WO2018/173132 WO 20180927
- Main IPC: G09G3/30
- IPC: G09G3/30 ; G09G3/3258 ; G09G3/20 ; G09G3/3275 ; G09G3/3266

Abstract:
Provided are a display device drive method and a display device, both of which allow a pixel circuit to be discharged without leaving any electric charge in an OFF sequence for powering off the display device.During an OFF sequence period, a first node N1 is set to a first ground potential Vgnd1, which is a potential higher than an initialization potential Vini. As a result, even when a second ground potential Vgnd2 is supplied through a data line Dj to a second conductive terminal of a drive transistor T1, a gate terminal of the drive transistor T1 is not charged with a gate-to-source voltage Vgs. Therefore, an organic EL display device 1 is powered off with the gate terminal of the drive transistor T1 being charged with the first ground potential Vgnd1 leaving no electric charge in a pixel circuit 11 after the power off.
Public/Granted literature
- US20200098316A1 DISPLAY DEVICE DRIVE METHOD AND DISPLAY DEVICE Public/Granted day:2020-03-26
Information query
IPC分类: