Invention Grant
- Patent Title: Devices and methods for common electrode mura prevention
- Patent Title (中): 普通电极预防的设备和方法
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Application No.: US13654242Application Date: 2012-10-17
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Publication No.: US09190011B2Publication Date: 2015-11-17
- Inventor: Ahmad Al-Dahle , Hopil Bae , Sang Y. Youn , Yafei Bi , Wei H. Yao , David A. Stronks
- 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: G09G5/00
- IPC: G09G5/00 ; G09G3/20

Abstract:
Methods and devices employing mura prevention circuitry, are provided. In one example, a method may include supplying a first voltage pathway between a common electrode driver and a common electrode of an electronic display device and supplying a second voltage pathway between the common electrode driver and ground. Mura prevention circuitry may be supplied that activates the first voltage pathway when the electronic display device is turned on and an activation gate signal is provided from a gate corresponding to the common electrode driver. Further, the mura prevention circuitry may activate the second voltage pathway when the electronic display device is turned off or no activation gate signal is provided from the gate corresponding to the common electrode driver.
Public/Granted literature
- US20130328847A1 DEVICES AND METHODS FOR COMMON ELECTRODE MURA PREVENTION Public/Granted day:2013-12-12
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