Light emitting display device
By changing the design of the scanning drive circuit in the light-emitting display device, and arranging the buffer transistors vertically and using a series connection structure, the problem of increased bezel width caused by the buffer transistors was solved, and a narrow bezel design effect was achieved.
CN122290488APending Publication Date: 2026-06-26LG DISPLAY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LG DISPLAY CO LTD
- Filing Date
- 2025-11-28
- Publication Date
- 2026-06-26
Smart Images
Figure CN122290488A_ABST
Abstract
A light-emitting display device includes a scan driving circuit comprising a scan stage having a first buffer portion for outputting a first scan signal and a first second buffer portion and a second second buffer portion for outputting two second scan signals. The first buffer portion includes first and second buffer transistors commonly connected to a first buffer node for receiving an input voltage and outputting a voltage through a first output terminal. The first second buffer portion includes a third buffer transistor connected to a second buffer node for receiving the voltage from the first output terminal and a fourth buffer transistor connected to the first buffer node. The second second buffer portion includes a fifth buffer transistor connected to a second buffer node and a sixth buffer transistor connected to the first buffer node. The first and second second buffer portions share the input and output nodes of the first buffer portion to jointly drive pixels of two adjacent horizontal lines using the first scan signal and to individually drive pixels of two adjacent horizontal lines using the two second scan signals respectively.
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