LCD AND ITS PRODUCTION

• Main Authors: INADA, KATSUHIKO, DOHJO, MASAYUKI, KUBO, AKIRA, TANAKA, YASUHARU
• Format: Patent
• Language: English; Korean
• Published: 15.01.1999
• Edition: 6
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

본 발명은 액정표시장치 및 그 제조방법에 관한 것으로서, 어레이 기판(10)에 대향기판(30)을 대향시키고, 밀봉용의 시일제(39)로 주위를 밀봉하고, 주입구로부터 액정(41)을 주입하여 주입구를 봉지제로 밀봉하며, 어레이 기판(10)은 유리 기판(11)상에 게이트 전극(12a), 제1 및 제2게이트 절연막(15)상에 제1 및 제2반도체층(16,18)을 적층형성하고, 소스전극(20a) 및 드레인 전극(21)을 형성하며, 박막 트랜지스터(22)를 형성하며, 드레인 전극(21)에 접속하는 표시화소전극(19)을 제1게이트 절연막(14)상에 패턴형성하며, 표시화소전극(19)의 주변부에 보호막(23)을 겹쳐 형성하며, 불순물 이온이나 수분의 제1게이트 절연막(14)중으로의 침입을 방지하고, 박막 트랜지스터(22) 특성의 악화를 방지하며, 화질악화를 방지하는 것을 특징으로 한다. A liquid crystal display device having an array substrate. The substrate has: (1) an insulating transparent substrate that has a pixel region and a non-pixel region, (2) a plurality of thin film transistors disposed in a matrix pattern on a display screen, each thin film transistor having a gate insulating film that is produced by an atmosphere pressure chemical vapor deposition; (3) a plurality of display pixel electrodes formed on the pixel region of the insulating transparent substrate, each display pixel electrode being connected to each of the thin film transistors; and (4) a protecting film formed on the non-pixel region of the insulating transparent substrate, the protecting film extends from the non-pixel region and overlaps a peripheral portion of each of the display pixel electrodes that are disposed in a portion of the display screen by a width of 2 mu m to 7 mu m. The display also has a counter substrate that is disposed apart from and facing the array substrate. A sealant layer is disposed at peripheries of the array substrate and the counter substrate so as to seal a space between the array substrate and the counter substrate and is provided with a liquid crystal-inlet port. A liquid crystal layer fills in a space between the array substrate and the counter substrate. The liquid crystal layer being injected in the space from the liquid crystal-inlet port. A closing layer is used to close the liquid crystal-inlet port.