Invention Grant
- Patent Title: Display device with feedback via parallel connections from distributed driver circuits to a single wire interface
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Application No.: US17067432Application Date: 2020-10-09
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Publication No.: US11276345B2Publication Date: 2022-03-15
- Inventor: Chih-Chang Wei , Junjie Zheng , Richard Landry Gray , Ping-Yuan Lin , Jyun-Long Lin , Lilun Chi
- Applicant: Huayuan Semiconductor (Shenzhen) Limited Company
- Applicant Address: CN Shenzhen
- Assignee: Huayuan Semiconductor (Shenzhen) Limited Company
- Current Assignee: Huayuan Semiconductor (Shenzhen) Limited Company
- Current Assignee Address: CN Shenzhen
- Agency: Fenwick & West LLP
- Main IPC: G09G3/32
- IPC: G09G3/32

Abstract:
Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of zone integrated circuits that are distributed in the display area. The zone integrated circuits may comprise integrated LED and driver circuits with embedded sensors or the zone integrated circuits may comprise dedicated sensor devices. The zone integrated circuits are arranged in groups that are coupled to a shared single wire communication line. The control circuit provides control signals that control the driver circuits to drive the LED zones and may provide commands to request feedback data from the zone integrated circuits. Responsive to the commands, the zone integrated circuits output feedback data that is provided to the control circuit via the shared single wire communication line.
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