Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Kyu-min Choe

Moon-Gyu Lee

Young-chan Kim

Seong-Mo Hwang

Jee-hong Min

Oleg Prudnikov

Jee-Hong Min

Seong-mo Hwang

A diffusing unit includes: a polarizing plate; and a diffusing layer integrally provided on a surface of the polarizing plate without an air layer therebetween. By using a display apparatus employing a collimating light guide plate and the diffusing unit, the optical performances such as resolution and viewing angle can be improved. Also, because gray scale inversion and color shifts can be reduced or eliminated using collimated light, image quality of the display apparatus can be improved.

Collimating light guide plate, diffusing unit, and display apparatus employing the same

Provided is an optical guide bar including: a light exit portion; light incident portions, on which light is incident, formed on both sides of the light exit portion; and a reflective portion facing the light exit portion and including a prism pattern that reflects light transmitted through the light incident portions towards the light exit portion. A shape of the reflective portion is determined in consideration of an effective light emission width of the light incident portion so that the intensity of light at any portion of the reflective portion is uniform.

Optical guide bar, line light source device, surface light illumination device, and display apparatus

A liquid crystal display with an improved viewing angle and brightness is provided. The liquid crystal display includes a light source unit and a polarized light guide plate having an incident surface onto which unpolarized light from the light source unit is incident. The polarized light guide plate polarizes, collimates, and out-couples the incident light. The liquid crystal display also includes a liquid crystal panel which modulates the light out-coupled and illuminated from the polarized light guide plate to form images, and a diffusion layer which diffuses the light modulated in the liquid crystal panel.

Liquid crystal display device having improved viewing angle and brightness

Growing community of inventors

Suwon-si, South Korea

Kyu-min Choe