Chi Lin Optoelectronics Co., Ltd.

Chi Lin Technology Co., Ltd.

Hung-Wen Wang

Hsi-Hsin Shih

Chien-Tsung Wu

Chin-Ming Wang

Shao-Ming Lee

Chih-Hao Tsai

The present invention relates to a light guide plate and back light module having the same. The light guide plate includes a light guide plate body and a plurality of microreliefs. The light guide plate body has a light-emitting surface and a reflecting surface. The microreliefs are disposed on the reflecting surface. Each of the microreliefs has an outer surface and a base area. The outer surface is a curved surface, and the base area contacts the reflecting surface. A ratio of the totally height of each of the microreliefs to the diameter of the base area of each of the microreliefs is between 1/7 and &#xbc;. As a result, the light guide plate has higher light extraction efficiency.

Light guide plate and back light module having the same

The present invention relates to a backlight module, light guide plate thereof and ink thereof. The ink includes a base resin and an additive. The additive is dispersed in the base resin for increasing the printability of the ink. The additive comprises a polymer having hydroxy functional group, ester functional group, ether functional group or combination thereof. Use of the ink of the present invention will reduce the color difference and the variation of color temperature of the light guide plate. In addition, the ink has higher flowability, which increases the printability of the ink.

Backlight module, light guide plate thereof and ink thereof

The present invention relates to an optical unit and light guide plate and ink thereof. The ink includes a base resin and a plurality of fine particles. The base resin has a first refractive index. The fine particles have a second refractive index and are dispersed in the base resin. The fine particles are made of organic polymer. The difference between the first refractive index and second refractive index is less than 0.15. The use of the ink will lower the color difference and the variation of color temperature of the light guide plate or the optical unit.

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Tainan County, Taiwan

Hung-Wen Wang