- Patent Title: Electronic display with hybrid in-pixel and external compensation
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Application No.: US18192905Application Date: 2023-03-30
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Publication No.: US11887546B2Publication Date: 2024-01-30
- Inventor: Chin-Wei Lin , Shinya Ono , Zino Lee , Yun Wang , Fan Gui
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Treyz Law Group
- Agent Jason Tsai
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; H01L29/786 ; H10K59/121

Abstract:
A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker.
Public/Granted literature
- US20230237965A1 Electronic Display with Hybrid In-Pixel and External Compensation Public/Granted day:2023-07-27
Information query
IPC分类: