US 7,532,282 B2
LCD device having a semi-transmission area with bump layer in a reflective portion thereof and a transmission portion having a transparent electrode with spacer disposed thereon
Yoshitaka Yamada, Fukaya (Japan); Hirokazu Morimoto, Fukaya (Japan); Seiichi Sato, Okegawa (Japan); Hiroyuki Kimura, Fukaya (Japan); and Tetsuya Iizuka, Saitama (Japan)
Assigned to Toshiba Matsushita Display Technology Co., Ltd., Tokyo (Japan)
Filed on May 31, 2005, as Appl. No. 11/139,507.
Claims priority of application No. 2004-180472 (JP), filed on Jun. 18, 2004; and application No. 2004-342725 (JP), filed on Nov. 26, 2004.
Prior Publication US 2005/0280757 A1, Dec. 22, 2005
Int. Cl. G02F 1/1339 (2006.01)
U.S. Cl. 349—114  [349/155] 7 Claims
OG exemplary drawing
 
1. A liquid crystal display device, comprising:
an array substrate including a display area having a pixel on each intersection point of plural scan lines and plural signal lines;
an opposite substrate disposed to be opposite to the array substrate with a liquid crystal layer sandwiched therebetween;
a transmission area in which each pixel having a transparent electrode in the display area transmits light therethrough, thereby performing display;
a semi-transmission area including both of a transmission portion in which each pixel in the display area performs transmission display, and a reflection portion for reflecting external light, thereby performing display;
a spacer disposed for constantly maintaining a distance between the array substrate and the opposite substrate in the transmission area;
a bump layer disposed in the reflection portion in each pixel of the semi-transmission area; and
a spacer disposed to be outside of a region of the bump layer on the transparent electrode in the transmission portion in each pixel of the semi-transmission area.