Invention Grant
- Patent Title: Electroluminescence display device
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Application No.: US17500265Application Date: 2021-10-13
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Publication No.: US11568824B2Publication Date: 2023-01-31
- Inventor: Daekyu Kim , Kyuhan Yoon
- 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: Polsinelli PC
- Priority: KR10-2020-0164145 20201130
- Main IPC: G09G3/3266
- IPC: G09G3/3266

Abstract:
An electroluminescence display device comprises a light emitting diode having an anode connected to a node A, and a pixel driving circuit supplying a driving current to the node A and including a node B, a node C and a node D. The pixel driving circuit includes a driving transistor controlled by a voltage supplied to the node B, a first transistor turned on by a first scan signal, supplying a data voltage to the node C, a second transistor turned on by a second scan signal, electronically connecting the node B with the node C, a third transistor turned on by an emission signal, electronically connecting the node D with a node E, a fourth transistor turned on by a C signal, supplying a reference voltage to the node E, a storage capacitor connected to the node B and the node D, and a capacitor connected to the node C and a reference voltage line to which the reference voltage is supplied. In this case, the emission signal includes a pulse overlapping with the first scan signal and the second scan signal, and the C signal includes a pulse overlapping with the emission signal without overlapping with the first scan signal and the second scan signal.
Public/Granted literature
- US20220172681A1 ELECTROLUMINESCENCE DISPLAY DEVICE Public/Granted day:2022-06-02
Information query
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