Patent ID: 8687148
Filing Date: 2014-04-01
Classification: G02B,G02F

Abstract:
1. A liquid crystal display device comprising a liquid crystal display panel and a backlight, wherein the backlight includes a light guide panel, an optical sheet, and a light source having first LEDs and second LEDs, wherein the light guide panel includes a concave portion extending parallel to a side of the light guide panel, wherein the first LEDs and the second LEDs are placed in the concave portion, wherein the first LEDs are arranged on a first line and the second LEDs are arranged on a second line, wherein the first and the second lines are parallel to each other, wherein the first LEDs emit light in a first direction, and the second LEDs emit light in a direction opposite to the first direction, wherein the first LEDs and the second LEDs are arranged alternately in an extending direction of the concave portion, wherein light from the first LEDs is emitted in a direction from the first line toward the second line, and wherein light from the second LEDs is emitted in a direction from the second line toward the first line.