Differential VCOM resistance or capacitance tuning for improved image quality

Patent metadata

Field	Value
Publication number	US-8941640-B2
Application number	US-201213601677-A
Country	US
Kind code	B2
Filing date	Aug 31, 2012
Priority date	Jun 8, 2012
Publication date	Jan 27, 2015
Grant date	Jan 27, 2015

Abstract

Devices and methods for reducing a variation in voltage perturbation between common voltage layers (VCOMs) of a display in response to voltage interference are provided. In one example, a resistive element may be coupled to one of several VCOMs to increase the resistance value of the VCOM. The resistive element may cause a variation in voltage perturbations between the several VCOMs to become generally more uniform, thereby reducing or eliminating certain image artifacts.

First claim

What is claimed is:

1. An electronic display comprising:
a first pixel comprising a first common voltage layer (VCOM layer), wherein the first VCOM layer is configured to experience a first voltage perturbation in response to a pixel deactivation signal;
a second pixel comprising a second VCOM layer, wherein the second VCOM layer is configured to experience a second voltage perturbation in response to the pixel deactivation signal; and
a resistive device configured to be coupl…

Assignees

• Bae Hopil
• Apple Inc

Inventors

• Bae Hopil

Classifications

• G09G2320/0223

  Physics · mapped topic

• G09G3/3655

  Physics · mapped topic

• G09G2320/0219

  Physics · mapped topic

• G06F3/0412 Primary

  Physics · mapped topic

• G09G3/006

  Physics · mapped topic