Radiant Opto-electronics Corporation

Industrial Technology Research Institute

Yu-Lin Hsieh

Pei-Ling Kao

Li-Fei Wang

Sheng-Kai Fang

Jui-Hsiang Chen

Jean-Dean Yang

Shiao-Wen Tsai

Chiung-Lin Yang

A backlight control circuit for a surface light emitting device is provided. The backlight control circuit includes a driving circuit. The driving circuit is configured to generate a plurality of driving currents to drive the surface light emitting device such that a plurality of backlight blocks of the surface light emitting device generate a plurality of brightness values. The surface light emitting device is divided into a first backlight area and a second backlight area. The second backlight area is closer to an edge of the surface light emitting device than the first backlight area. A first driving current of the plurality of driving currents is utilized for driving the light source of the first backlight area. A second driving current of the plurality of driving currents is utilized for driving the light source of the second backlight area. The second driving current is greater than the first driving current.

Backlight control circuit

A backlight control method for a surface light-emitting device is provided. The backlight control method includes generating a plurality of driving currents to drive the surface light-emitting device such that a plurality of backlight zones generate a plurality of brightness values, measuring the plurality of brightness values of the plurality of backlight zones, calculating a plurality of uniformities of the plurality of backlight zones according to the plurality of brightness values and setting a plurality of target uniformities, generating a plurality of adjustment values according to the plurality of uniformities, the plurality of target uniformities and a plurality of adjustment coefficients corresponding to the plurality of backlight zones, and generating a plurality of adjusted driving currents to drive the plurality of backlight zones according to the plurality of adjustment values and the plurality of driving currents.

Backlight control method and backlight control circuit

This invention is concerned with a method for producing water-insoluble polysaccharides. A method for making the water-insoluble bio-compatible gel includes activating the hydroxyl-containing polysaccharides with the activating agent to form activated polysaccharides, and cross-linking the activated polysaccharides, under moderate conditions producing different shapes of the water-insoluble bio-compatible gel. The water-insoluble bio-compatible gels, films, porosities, powders, sheets, fibers and spheres of this invention may be applied to various medical and cosmetic uses.

Method for producing water-insoluble polysaccharides

Growing community of inventors

Kaohsiung, Taiwan

Yu-Lin Hsieh