Invention Application
- Patent Title: ELECTRONIC DISPLAY WITH IN-PIXEL COMPENSATION AND OXIDE DRIVE TRANSISTORS
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Application No.: PCT/US2020/057574Application Date: 2020-10-27
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Publication No.: WO2021133461A1Publication Date: 2021-07-01
- Inventor: LIN, Chin-Wei , ONO, Shinya , HUANG, Jung Yen
- Applicant: APPLE INC.
- Applicant Address: One Apple Park Way
- Assignee: APPLE INC.
- Current Assignee: APPLE INC.
- Current Assignee Address: One Apple Park Way
- Agency: TREYZ, George Victor
- Priority: US17/075,587 2020-10-20
- Main IPC: G09G3/3233
- IPC: G09G3/3233 ; H01L27/12 ; G09G2300/0417 ; G09G2300/0465 ; G09G2300/0819 ; G09G2300/0842 ; G09G2300/0861 ; G09G2310/0256 ; G09G2320/0209 ; G09G2320/0238 ; G09G2320/0247 ; G09G3/2092 ; G09G3/3266 ; G09G3/3291 ; H01L27/1225 ; H01L27/1251 ; H01L27/1255
Abstract:
A display pixel may include an organic light-emitting diode, one or more emission transistors, a drive transistor, a gate setting transistor, a data loading transistor, and an initialization transistor. The drive transistor may be implemented as a semiconducting-oxide transistor to mitigate threshold voltage hysteresis to improve first frame response at high refresh rates, to reduce undesired luminance jumps at low refresh rates, and to reduce image sticking. The gate setting transistor may also be implemented as a semiconducting-oxide transistor to reduce leakage at the gate terminal of the drive transistor. The initialization transistor may also be implemented as a semiconducting-oxide transistor so that it can be controlled using a shared emission signal to reduce routing complexity. The remaining transistors in the pixel may be implemented as p-type silicon transistors. Display pixels configured in this way can support in-pixel threshold voltage compensation and on-bias stress phase to further mitigate the hysteresis.
Information query
IPC分类: