Invention Grant
- Patent Title: Pixel driving circuit and electroluminescent display device including the same
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Application No.: US17107875Application Date: 2020-11-30
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Publication No.: US11270644B2Publication Date: 2022-03-08
- Inventor: Sung Wook Chang
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Fenwick & West LLP
- Priority: KR10-2019-0163746 20191210
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G09G5/00 ; G09G3/3258 ; G09G3/3291 ; G09G3/3266

Abstract:
A pixel driving circuit in each of the pixels includes: a first switching circuit that is turned on in response to the (n−2)th scan signal to provide a V1 voltage to a first node, provide a V3 voltage to a third node, and provide a V2 voltage to an anode of the light-emitting element; a second switching circuit turned on in response to the nth scan signal to electrically connect the first node to a second node, provide a V5 voltage to the third node, and provide a data voltage to a fourth node; and an emission control circuit turned on in response to the nth emission signal to electrically connect a second node to the anode and provide a reference voltage to the fourth node.
Public/Granted literature
- US20210174743A1 Pixel Driving Circuit and Electroluminescent Display Device Including the Same Public/Granted day:2021-06-10
Information query
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