Samsung Electronics Co., Ltd.

Cheil Industries Inc.

Chul-Goo Chi

Man-Suk Kim

O-Yong Jeong

Jae-Ho Jung

Kyu-Seok Kim

Jeong-Hwan Lee

Jong-Dae Park

Dong-Hoon Kim

A light guide plate includes a main body having opposing side faces, and front and rear faces connected to the opposing side faces, the front face being adapted to output light incident on at least one of the side faces, a plurality of front prisms disposed at the front face of the main body, and a plurality of dot prisms disposed in an array at the rear face of the main body, the dot prisms being spaced apart from each other, each of the dot prisms including prism parts, sizes of the dot prisms increasing as a distance from the at least one side face increases.

Light guide plate for liquid crystal display back light units and liquid crystal display back light unit using the same

A light guide plate includes a light incident surface for receiving light, first and second light emission surfaces for emitting light at a first light emission angle with respect to the first and second light emission surfaces, and a light reflection pattern formed on the first light emission surface, for reflecting the light toward the second light emission surface. The reflected light from the light reflection pattern exits the second light emission surface at a second light emission angle with respect to the second light emission surface, and the second light emission angle is larger than the first light emission angle. The light reflection pattern includes multiple dots each having a prim pattern on their surface and light reflecting surfaces elongated in a selected direction. The adjacent light reflecting surfaces meet each other at their elongated edges to form a prism shape.

Light guide plate with light reflection pattern

Growing community of inventors

Seoul, South Korea

Chul-Goo Chi