Ctx Opto-Electronics Corp.

Lightware, Inc.

Falcon Lin

Arlie R Conner

David K Booth

Shih-Yuan Yu

An LCD projector includes: a light source assembly for supplying light source required for the LCD projector; an image generating mechanism for generating image to be projected, having an LCD panel; a projection objective lens assembly for projecting the image generated by the image generating mechanism onto a screen; and a cooling mechanism for cooling off the surface of the LCD panel of which the temperature is raised due to the radiation of the light source. A thermal diffusion film having good transparency and thermal diffusivity is attachd to the surface of the LCD panel on the one side nearer to the light source assembly so as to facilitate homogeneous thermal diffusion in the surface of the LCD panel, and thus prevent deterioration of quality of projected image due to thermal shimmering caused by cooling air flow coming from the cooling mechanism.

LCD projector capable of preventing thermal shimmering by using a

A backlighting system for liquid crystal display (LCD) panels is disclosed to comprise at least a light source and a light pipe for receiving the light generated by the light source to provide the backlighting for the LCD panel. The light pipe consists of a flat front surface facing the LCD panel, a back surface facing the opposite direction to the LCD panel, and an end surface adjacent to the light source. The front surface extends toward the longitudinal direction away from the light source. The back surface consists of a plurality of parallel sections in parallel with the front surface, and connecting sections connecting adjacent parallel sections. The gap between the parallel section and the front surface decreases as the distance between the parallel section and the light source in the longitudinal direction increases. The system is characterized by the fact that the connecting sections on the back surface of the light pipe comprises at least two surfaces inclined to the parallel sections forming successive roof-shaped structures along the direction perpendicular to the longitudinal direction. This geometry increases the angle between the normal vector of the inclined surfaces and the incident vector of the incident light, thus reducing the portion of light editing the inclined surfaces out of the light pipe. The angle between two adjacent inclined surfaces is between 60 to 120 degrees.

Growing community of inventors

Hsinchu, Taiwan

Falcon Lin