Invention Grant
- Patent Title: Pixel circuit, electro-optical device, and electronic apparatus
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Application No.: US15909534Application Date: 2018-03-01
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Publication No.: US10665161B2Publication Date: 2020-05-26
- Inventor: Hitoshi Ota
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6379da50
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; H01L51/52 ; H01L27/32

Abstract:
A transistor circuit outputs a drive current in accordance with a data signal. An OLED that is connected to the transistor circuit emits light with luminance corresponding to the drive current. A discharge transistor, when the OLED does not emit the light, is turned on to connect a discharge feeder line to a node at which the transistor circuit is connected to the OLED. An absolute value of a threshold voltage of the discharge transistor is lower than an absolute value of a threshold voltage of a drive transistor in the transistor circuit. When the data signal indicates zero, the discharge transistor can cause a flow of the drive current from the transistor circuit to bypass the OLED.
Public/Granted literature
- US20180261155A1 PIXEL CIRCUIT, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS Public/Granted day:2018-09-13
Information query
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