US PATENT SUBCLASS 345 / 102
.~.~.~.~ Backlight control

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

30  DF  PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) {4}
55  DF  .~ Display elements arranged in matrix (e.g., rows and columns) {10}
84  DF  .~.~ Light-controlling display elements {6}
87  DF  .~.~.~ Liquid crystal display elements (LCD) {9}
102.~.~.~.~ Backlight control

DEFINITION

Classification: 345/102

Backlight control:

(under subclass 87) Subject matter wherein a source of light is located in the back of the liquid crystal display elements* for providing light to the liquid crystal display elements*.

SEE OR SEARCH CLASS

349, Liquid Crystal Cells, Elements and Systems,

61+, for particular illumination of liquid crystal material.