Low motion blur liquid crystal display

Patent metadata

Field	Value
Publication number	US-8994640-B2
Application number	US-201313828355-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

One embodiment of the present invention sets forth a technique for reducing motion blur in a liquid crystal display (LCD) by pulsing each frame with a relatively short pulse of backlight illumination while driving pixels within the LCD with compensated intensity values to account for LCD settling time and vertical position. An LCD drive compensation unit implements the disclosed technique to generate an intensity value for each pixel that is scanned into the LCD. The technique advantageously reduces motion blur while preserving uniform vertical display accuracy.

First claim

The invention claimed is:

1. A method for generating pixel data for a liquid crystal display (LCD), the method comprising:
receiving new pixel data associated with a new frame of data;
retrieving previous pixel data from a previous frame of data based on a pixel location for the new pixel data;
computing compensated pixel data based on the new pixel data, the previous pixel data, and a line number associate with the pixel location; and
transmitting the compensated pixel data…

Assignees

• Nvidia Corp

Inventors

• Slavenburg Gerrit Ary
• Verbeure Tom J
• Schutten Robert Jan

Classifications

• G09G2320/0646

  Physics · mapped topic

• G09G2310/0237

  Physics · mapped topic

• G09G2320/0261

  Physics · mapped topic

• G09G5/363

  Physics · mapped topic

• G09G3/36 Primary

  Physics · mapped topic