- Patent Title: Display device with pixel circuit having a plurality of transistors
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Application No.: US17246367Application Date: 2021-04-30
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Publication No.: US11785805B2Publication Date: 2023-10-10
- Inventor: Keun Woo Kim , Tae Wook Kang
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR 20200066455 2020.06.02
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; H10K59/121 ; G09G3/3291 ; G09G3/3258 ; H10K59/131

Abstract:
A display device includes: a plurality of pixels on a substrate, each of the plurality of pixels including a light emitting element and a pixel circuit configured to drive the light emitting element, wherein the pixel circuit of each of the plurality of pixels comprises: a first-first transistor configured to control a driving current flowing through the light emitting element based on a voltage of a first node; a first-second transistor connected in series with the first-first transistor and configured to control the driving current based on a voltage of a second node; a second transistor configured to selectively supply a data voltage to a third node which is a first electrode of the first-first transistor; a third-first transistor connected between the first node and a fourth node which is a second electrode of the first-second transistor; and a third-second transistor connected between the second node and the fourth node.
Public/Granted literature
- US20210376025A1 DISPLAY DEVICE Public/Granted day:2021-12-02
Information query
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