Entire Technology Co., Ltd.

Chao-Ying Lin

Wen-Feng Cheng

Chen-Sheng Lee

Jen-Huai Chang

Tsung-Chang Yang

Jyh-Horng Wang

Ying Yuan Wu

Chien-Cheng Lin

Chun-Yu Lin

Chung Yu Chen

An optical diffusion device applied in a backlight module includes a plate. Multiple light sources are disposed on one side of the plate. Multiple optical microstructures provided with a longer axis and a shorter axis are disposed on the plate. The longer axis of each optical microstructure is approximately arranged in parallel with a direction extending from the light source, or, in other words, the shorter axis is arranged approximately crossing the direction extending from the light source. A diffusion effect is provided to each light source through the shorter axis of the optical microstructure to increase optical radiant energy among the light sources and to eliminate the dim and dark regions among the light sources for increasing general luminance of the backlight module.

Optical diffusion device

A liquid crystal display, comprising: a liquid crystal display panel and a backlight module. The backlight module comprising: a reflection unit, a light emitting unit, and a compound diffusion plate structure. The light emitting unit has a plurality of light emitting components installed within the installation space of the reflection unit. The compound diffusion plate structure is placed on one side of the light emitting unit, comprising: a body unit and a printing micro diffusion unit. The body unit has a main layer, and a plurality of micro diffusion particles formed inside the body unit, allowing light to diffuse within the body unit. The printing micro diffusion unit has a plurality of convex lens units formed on a light entrance plane or a light exit plane of the body unit by means of printing.

Compound diffusion plate structure, backlight module, and liquid crystal display

The invention provides a diffusion plate and a backlight module. The backlight module includes pluralities of light sources, a reflector and a first diffusion plate. The light sources, which are disposed in the reflector, are spatially arranged. The first diffusion plate is disposed on the light sources. There are pluralities of bar-shaped first patterns and second patters, which are arranged in the alternating way, disposed on the emission surface of the first diffusion plate. The contours of first patterns and second patterns are arc shaped. The height of first patterns is H1, and the width is W1. The height of second patterns is H2, and the width is W2. The value of H1/W1 is between 0.4 and 1. The ratio of H2/W2 versus H1/W1 is between 0.6 and 0.9.

Diffusion plate and backlight module

A backlight includes a case, pluralities of light sources, pluralities of needles, pluralities of supporting portions, a first optical sheet, a second optical sheet, and pluralities of first microstructures. The light sources are disposed inside the case, the needles are disposed on the bottom surface of the case, and the supporting portions are disposed on the needles. The first optical sheet is supported on the top of the needles. The second optical sheet placed under the first optical sheet has pluralities of holes, and the needles penetrate the holes. The second optical sheet is supported on the supporting portions. The first microstructures are disposed on the first optical sheet or on the second optical sheet to provide a light condensing function.

Backlight module having two optical sheets

A diffusion-plates assembly and a direct-type backlight module assembly are provided. The diffusion-plates assembly includes a first diffusion plate and a second diffusion plate. There are pluralities of first microstructures on the emergent surface of the first diffusion plate, the first microstructures is for condensing light. The thickness of the first diffusion plate is above 0.4 mm, and the transmittance of the first diffusion plate is above 90%. The second diffusion plate is placed over or under the first diffusion plate, The thickness of the second diffusion plate is above 0.4 mm, and the transmittance of the second diffusion plate is 50&#x2dc;90. Said diffusion-plates assembly is used in the direct-type backlight module assembly.

Growing community of inventors

Taoyuan County, Taiwan

Chao-Ying Lin