Invention Grant
- Patent Title: Multi-zoned variable VCOM control
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Application No.: US15246666Application Date: 2016-08-25
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Publication No.: US10380937B2Publication Date: 2019-08-13
- Inventor: Howard H. Tang , Paolo Sacchetto , Chaohao Wang , Szu-Hsien Lee , Patrick Bennett , Fenghua Zheng
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder PC
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/36

Abstract:
The disclosure relates to systems and methods for reducing VCOM settling periods. A number of pixels is sub-divided into a plurality of regions. The pixels are configured to transmit light. A common voltage (VCOM) driving circuit is configured to drive a common electrode of the pixels. Moreover, each of a number of VCOM driving circuits includes a variable resistor configured to be driven to a resistance level based at least in part on which region of the plurality of regions includes an active pixel within the region. Furthermore, a resistance level is set and based at least in part on where the active pixel is located.
Public/Granted literature
- US20170061864A1 MULTI-ZONED VARIABLE VCOM CONTROL Public/Granted day:2017-03-02
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