Toray Advanced Materials Korea Inc.

Sang Pil Kim

Sang Hoon Lee

Chang Ik Hwang

Kwang Soo Kim

Jun Sang Park

Mun Bok Lee

Hee Cheong Lee

An adhesive film for a reflection sheet and a reflection sheet using the adhesive film is provided. The adhesive film comprises a plastic base film having a heat shrinkage of &#x2212;0.1 to 0.5% at 150&#xb0; C. in machine and transverse directions; an adhesive layer formed on one side of the base film by applying an adhesive composition; and an anchor coating layer formed on the other side of the base film, opposite to the side on which the adhesive layer is formed. The adhesive film for a reflection sheet according to the present invention is manufactured by applying an adhesive composition on a plastic base film where heat shrinkage is controlled. Thus, the adhesive film has superior dimensional stability at a high temperature and excellent workability in a post process for laminating a reflection layer. Partial detachment does not occur when an adhesive layer is detached from an adherent, and stable physical properties can be achieved.

Adhesive film for a reflection sheet and reflection sheet using the same

A light guide plate for a surface light source device is provided, which includes an incident surface configured to have light from lamps disposed along a predetermined axis, be incident thereon, an emitting surface configured to have the incident light emitted therefrom, a back surface configured to face the emitting surface, and a plurality of unit cells configured to have microprism patterns engraved thereon and distributed and arranged on the back surface. A crossing angle of a microprism arrangement axis, formed by a ridge direction of the microprism patterns, and of an arrangement axis of the lamps is disposed in an alternate angle. The light guide plate has a high front brightness and an excellent uniformity in brightness and does not have a moire phenomenon. In a backlight unit, the use of optical sheets stacked on the light guide plate can be reduced.

Light guide plate for surface light source device and backlight unit using the same

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Gumi-si, South Korea

Sang Pil Kim