KR100336887B1 - LCD Display - Google Patents
LCD Display Download PDFInfo
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- KR100336887B1 KR100336887B1 KR10-1998-0034238A KR19980034238A KR100336887B1 KR 100336887 B1 KR100336887 B1 KR 100336887B1 KR 19980034238 A KR19980034238 A KR 19980034238A KR 100336887 B1 KR100336887 B1 KR 100336887B1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136213—Storage capacitors associated with the pixel electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134336—Matrix
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Power Engineering (AREA)
Abstract
본 발명은 보조 용량 전극을 스토리지 전극으로 하여 개구율을 증대시킬 수 있는 액정 표시 장치에 관한 것이다. 하부 기판, 하부 기판상에 격자 형태로 배열되어 단위 화소를 한정하는 게이트 버스 라인과, 데이터 버스 라인, 상기 단위 화소 공간에 투명한 물질로 배치되며, 수개의 홈을 갖는 보조 용량 전극, 상기 보조 용량 전극에 공통 전압을 인가하는 공통 전극 배선, 상기 단위 화소 공간에 상기 보조 용량 전극과 오버랩되도록 배치되는 화소 전극, 상기 게이트 버스 라인 및 데이터 버스 라인을 절연시키면서, 상기 보조 용량 전극과 화소 전극 사이에 개재되는 게이트 절연막을 포함한다.The present invention relates to a liquid crystal display device capable of increasing the aperture ratio by using the storage capacitor electrode as a storage electrode. A gate bus line arranged in a lattice form on the lower substrate, the lower substrate to define a unit pixel, a data bus line, a storage capacitor electrode disposed of a transparent material in the unit pixel space and having a plurality of grooves, and the storage capacitor electrode A common electrode wiring for applying a common voltage to the pixel electrode, the pixel electrode disposed to overlap the storage capacitor electrode in the unit pixel space, the gate bus line, and the data bus line, and are interposed between the storage capacitor electrode and the pixel electrode. It includes a gate insulating film.
Description
본 발명은 액정 표시 장치에 관한 것으로, 보다 구체적으로는, 보조 용량 전극을 보조 용량 전극으로 이용하여 개구율을 증대시킬 수 있는 액정 표시 장치에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device capable of increasing the aperture ratio by using a storage capacitor electrode as the storage capacitor electrode.
종래의 액정 표시 장치를 도 1을 참조하여 설명하면 다음과 같다.A conventional liquid crystal display is described with reference to FIG. 1 as follows.
도 1은 종래의 액정표시장치의 평면도이다.1 is a plan view of a conventional liquid crystal display device.
종래의 액정표시장치는, 도 1에 도시된 바와 같이, 게이트 버스 라인(11)과 데이터 버스 라인(12)은 유리 기판(10)상에 교차 배열되어 단위셀 공간을 한정한다. 여기서, 상기 게이트 버스 라인(11)과 데이터 버스 라인(12) 사이에는 게이트 절연막(도시되지 않음)이 개재되어 있다.In the conventional liquid crystal display device, as shown in FIG. 1, the gate bus line 11 and the data bus line 12 are alternately arranged on the glass substrate 10 to define a unit cell space. Here, a gate insulating film (not shown) is interposed between the gate bus line 11 and the data bus line 12.
또한, 상기 게이트 버스 라인(11)은 단위 셀 공간내로 돌출된 소정의 돌출부(11a)를 포함하며, 이 돌출부(11a)가 박막 트랜지스터의 게이트 전극이 된다.In addition, the gate bus line 11 includes a predetermined protrusion 11a protruding into the unit cell space, and the protrusion 11a becomes a gate electrode of the thin film transistor.
그리고, 상기 데이터 버스 라인(12)은 게이트 전극(11a)과 소정 부분과 오버랩될 수 있도록 소정 부분 돌출되어 있으며, 이 부분이 박막 트랜지스터의 드레인 전극(12a)이 된다.The data bus line 12 protrudes a predetermined portion so as to overlap the predetermined portion with the gate electrode 11a, and this portion becomes the drain electrode 12a of the thin film transistor.
한편, 상기 드레인 전극(12a)과 대칭되는 부분에는 소오스 전극(13)이 게이트 전극(11a)과 오버랩되어 있고, 단위셀 공간에는 화소 전극(14)이 각각 배치된다. 여기서, 상기 화소전극(14)은 게이트 전극(11a)과 소정 부분 오버랩되는 소오스 전극(13)과 콘택되고, 상기 화소전극(14)의 하부에는 불투명 금속으로 보조 용량 전극(15)이 구비된다. 여기서, 화소 전극(13)과 보조 용량 전극(15) 사이에는 게이트 절연막(도시되지 않음)이 개재되어 있어, 보조 용량 캐패시터(Cst)가 형성된다.On the other hand, the source electrode 13 overlaps the gate electrode 11a at a portion symmetrical with the drain electrode 12a, and the pixel electrode 14 is disposed in the unit cell space, respectively. The pixel electrode 14 is in contact with the source electrode 13 overlapping the gate electrode 11a by a predetermined portion, and the storage capacitor electrode 15 is made of an opaque metal under the pixel electrode 14. Here, a gate insulating film (not shown) is interposed between the pixel electrode 13 and the storage capacitor electrode 15 to form the storage capacitor Cst.
그러나, 종래기술에 의하면, 상기 보조 용량 전극(15)은 불투명 금속막으로 이루어져, 액정 표시 장치의 단위 화소 공간에 배치되어 있어, 빛이 투과되는 개구면을 가리게 된다. 이로 인하여, 액정 표시 장치의 개구율이 감소시키는 원인이 된다.However, according to the related art, the storage capacitor electrode 15 is made of an opaque metal film and is disposed in the unit pixel space of the liquid crystal display device to cover the opening surface through which light is transmitted. This causes a decrease in the aperture ratio of the liquid crystal display device.
따라서, 본 발명은 상기 종래기술의 문제점을 해결하기 위하여 안출한 것으로, 보조용량전극을 투명한 물질로 사용하여 개구율을 확보할 수 있는 액정 표시 장치를 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a liquid crystal display device which can secure an aperture ratio by using a storage capacitor electrode as a transparent material.
도 1은 종래의 액정 표시 장치의 평면도.1 is a plan view of a conventional liquid crystal display device.
도 2는 본 발명의 일실시예를 설명하기 위한 액정 표시 장치의 평면도.2 is a plan view of a liquid crystal display for explaining an embodiment of the present invention.
도 3은 본 발명의 일실시예에 따른 도 2의 보조 용량 전극만을 도시한 도면.FIG. 3 illustrates only the storage capacitor electrode of FIG. 2 in accordance with an embodiment of the present invention. FIG.
도 4는 본 발명의 다른 실시예에 따른 보조 용량 전극의 평면도4 is a plan view of a storage capacitor electrode according to another exemplary embodiment of the present invention.
(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)
20 - 하부 기판 21 - 게이트 버스 라인20-Bottom Board 21-Gate Bus Line
23 - 데이터 버스 라인 25 - 보조 용량 전극23-data bus line 25-auxiliary capacitance electrode
26 - 공통 전극 배선 27 - 화소 전극26-common electrode wiring 27-pixel electrode
상기 목적을 달성하기 위한 본 발명에 따른 액정표시장치는, 하부기판; 상기 하부 기판상에 격자 형태로 배열되어 단위 화소를 한정하는 게이트 버스 라인과 데이터 버스 라인; 상기 단위 화소 공간에 배치되고 다수개의 홈을 가지며 투명물질로 된 보조용량전극; 상기 보조 용량 전극에 공통 전압을 인가하는 공통 전극 배선; 상기 단위 화소 공간에 상기 보조 용량 전극과 오버랩되도록 배치되는 화소 전극; 상기 보조용량전극과 화소전극사이에 개재되어 게이트버스라인과 데이터버스라인을 절연시키는 게이트 절연막을 포함하는 것을 특징으로 한다.According to an aspect of the present invention, a liquid crystal display device includes: a lower substrate; Gate bus lines and data bus lines arranged in a lattice form on the lower substrate to define unit pixels; A storage capacitor electrode disposed in the unit pixel space and having a plurality of grooves and made of a transparent material; A common electrode wiring for applying a common voltage to the storage capacitor electrode; A pixel electrode disposed to overlap the storage capacitor electrode in the unit pixel space; And a gate insulating layer interposed between the storage capacitor electrode and the pixel electrode to insulate the gate bus line and the data bus line.
본 발명에 의하면, 화소 전극과 오버랩되는 보조 용량 전극을 투명한 금속막으로 형성하고, 보조 용량 전극을 전체적으로는 사각판 형태를 취하면서 사각판내에 수개의 홈을 설치한다. 이 홈의 설치로 보조 용량 전극은 토폴로지를 갖게되어, 입사광이 보조 용량 전극을 통과하면서, 넓은 각을 가지고 산란된다.According to the present invention, the storage capacitor electrode overlapping the pixel electrode is formed of a transparent metal film, and the storage capacitor electrode is formed in a rectangular plate as a whole, and several grooves are provided in the square plate. By installing this groove, the storage capacitor electrode has a topology, and the incident light is scattered at a wide angle while passing through the storage capacitor electrode.
이에 따라, 개구면에 불투명한 부분이 제거되어 액정 표시 장치의 개구율을 확보되고, 입사되는 광이 넓은 산란각을 가지며 산란되므로 시야각이 증대된다.As a result, an opaque portion of the opening surface is removed to secure the aperture ratio of the liquid crystal display, and the incident light is scattered with a wide scattering angle, thereby increasing the viewing angle.
[실시예]EXAMPLE
이하 본 발명에 따른 액정표시장치의 바람직한 실시예를 첨부된 도면을 참조하여 자세히 설명하도록 한다.Hereinafter, exemplary embodiments of the liquid crystal display according to the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 일실시예를 설명하기 위한 액정표시장치의 평면도이고, 도 3은 도 2의 보조 용량 전극만을 도시한 도면이며, 도 4는 본 발명의 다른 실시예에 따른 보조 용량 전극의 평면도이다.2 is a plan view of a liquid crystal display for explaining an embodiment of the present invention, FIG. 3 is a view illustrating only the storage capacitor electrode of FIG. 2, and FIG. 4 is a view of the storage capacitor electrode according to another embodiment of the present invention. Top view.
본 발명에 따른 액정표시장치의 일실시예는, 도 2에 도시된 바와같이, 먼저, 하부기판(20)상부에 게이트 버스 라인(21)이 x축 방향으로 연장배치되고, 데이터 버스 라인(23)은 x축 방향과 실질적으로 수직인 y축 방향으로 연장배치되어, 이들이 단위 화소를 한정한다.According to one embodiment of the liquid crystal display according to the present invention, as shown in FIG. 2, first, the gate bus line 21 is disposed on the lower substrate 20 in the x-axis direction, and the data bus line 23 is disposed thereon. ) Are extended in the y-axis direction substantially perpendicular to the x-axis direction, so that they define a unit pixel.
또한, 상기 게이트 버스 라인(21)과 데이터 버스 라인(23)의 각각의 교차점 부위에는 박막 트랜지스터(TFT)가 배치된다.In addition, a thin film transistor TFT is disposed at each intersection point of the gate bus line 21 and the data bus line 23.
그리고, 상기 한정된 단위화소의 공간에는 투명한 금속막 예를들어, ITO(indium tin oxide) 물질로 구성된 보조용량전극(25)이 배치된다.In the space of the limited unit pixel, the storage capacitor electrode 25 made of a transparent metal film, for example, an indium tin oxide (ITO) material, is disposed.
한편, 상기 보조용량전극(25)은 전체적으로는 사각판 구조를 가지며, 이 사각판에는 등간격으로 수개의 사선홈(H1)이 설치된다. 여기서, 상기 사선홈(H1)은 x축을 중심으로 90도 대칭을 이루며 설치된다.On the other hand, the storage capacitor electrode 25 as a whole has a rectangular plate structure, the diagonal plate is provided with a plurality of diagonal grooves (H1) at equal intervals. Here, the oblique groove (H1) is installed symmetrically 90 degrees around the x-axis.
따라서, 상기 보조용량전극(25)에 홈(H1)이 설치됨에 따라, 보조 용량 전극(25)이 형성된 결과물 표면에는 토폴로지가 형성된다.Therefore, as the groove H1 is provided in the storage capacitor electrode 25, a topology is formed on the resultant surface on which the storage capacitor electrode 25 is formed.
이러한 보조 용량 전극(25)은 게이트 버스 라인(21)과 동일 물질로된 공통 전극배선(26)과 콘택되어 공통 전압을 인가받는다. 여기서, 상기 공통전극배선(26)은 상부기판(도시되지 않음)의 블랙 매트릭스가 설치되는 부분(도면에서 BM으로 표시됨)과 대응되는 하부기판(20)에 배치되므로써 개구율에 영향을 미치지 않게 한다.The storage capacitor electrode 25 is in contact with the common electrode wiring 26 made of the same material as the gate bus line 21 to receive a common voltage. In this case, the common electrode wiring 26 is disposed on the lower substrate 20 corresponding to the portion (shown as BM in the drawing) on which the black matrix of the upper substrate (not shown) is installed so as not to affect the aperture ratio.
또한, 상기 보조 용량 전극(25)이 형성된 단위 화소 공간에는 박막 트랜지스터(TFT)와 콘택되도록 화소전극(27)이 배치된다. 여기서, 상기 화소전극(27)은 투명 금속막으로 형성되고, 화소전극(27)과 보조 용량 전극(25) 사이에는 게이트 절연막(도시되지 않음)이 개재되므로써, 이들 전극(25,27) 사이에 보조 용량 캐패시턴스가 형성된다. 따라서, 상기 보조 용량 전극(25)은 투명한 물질로 형성되어 있어 개구율에 영향을 미치지 않는다.In addition, the pixel electrode 27 is disposed in the unit pixel space where the storage capacitor electrode 25 is formed to be in contact with the thin film transistor TFT. Here, the pixel electrode 27 is formed of a transparent metal film, and a gate insulating film (not shown) is interposed between the pixel electrode 27 and the storage capacitor electrode 25, so that the electrodes 25 and 27 are interposed therebetween. A storage capacitance is formed. Therefore, the storage capacitor electrode 25 is made of a transparent material and does not affect the opening ratio.
그리고, 상기 보조 용량 전극(25)에 홈에 형성되어 있어, 토폴로지가 발생되는데, 이 토폴로지에 의하여 하부기판(20) 저부로부터 입사되는 광이 넓은 굴절각을 가지고 산란되므로써 넓은 시야각을 확보할 수 있다.The top of the storage capacitor electrode 25 is formed in a groove, and a topology is generated. As a result, the light incident from the bottom of the lower substrate 20 is scattered with a wide angle of refraction, thereby securing a wide viewing angle.
아울러, 상기 보조용량전극(25)에 형성된 홈(H1)의 형태가 사선 형태임에 따라, 사선 방향으로의 시야각을 확보할 수 있다.In addition, since the groove H1 formed in the storage capacitor electrode 25 has an oblique shape, a viewing angle in an oblique direction can be secured.
한편, 본 발명에 따른 액정표시장치의 다른 실시옌는, 도 4에 도시된 바와같이, 상하 좌우 방향의 시야각을 확보하기 위하여, 카운터 전극(25)의 선택된 부분에는 횡형홈(H2)과 나머지 부분에는 종형홈(H3)이 형성되어 있다.On the other hand, according to another embodiment of the liquid crystal display according to the present invention, in order to secure the viewing angle in the up, down, left and right directions, as shown in Figure 4, the selected portion of the counter electrode 25 in the horizontal groove (H2) and the remaining portion Vertical grooves H3 are formed.
이와같이, 하나의 단위화소 공간내에 설치되는 보조 용량 전극에 횡형홈(H2)과 종형홈(H3)가 형성됨에 따라, 상하 좌우 방향으로 빛이 산란되어 상하좌우 시야각을 확보할 수 있다.As described above, as the horizontal grooves H2 and the vertical grooves H3 are formed in the storage capacitor electrodes installed in one unit pixel space, light is scattered in up, down, left, and right directions to secure vertical, left, right, and right viewing angles.
이상에서 자세히 설명된 바와 같이, 본 발명에 의하면, 화소 전극과 오버랩되는 보조 용량 전극을 투명한 금속막으로 형성하고, 보조 용량 전극을 전체적으로는 사각판 형태를 취하면서 사각판내에 수개의 홈이 형성되어 있어, 이 홈의 형성으로 인해 보조 용량 전극이 토폴로지를 갖게 되어, 입사광이 보조 용량 전극을 통과하면서, 넓은 각을 가지고 산란된다.As described in detail above, according to the present invention, the storage capacitor electrode overlapping the pixel electrode is formed of a transparent metal film, and the plurality of grooves are formed in the square plate while the storage capacitor electrode generally takes the form of a square plate. Therefore, the formation of this groove causes the storage capacitor electrode to have a topology, and the incident light is scattered at a wide angle while passing through the storage capacitor electrode.
따라서, 본 발명에 의하면, 개구면에 불투명한 부분이 제거되어 액정 표시 장치의 개구율이 확보되고, 입사되는 광이 넓은 산란각을 가지며 산란되므로써 시야각이 증대된다.Therefore, according to the present invention, the opaque portion is removed from the opening surface to secure the aperture ratio of the liquid crystal display device, and the viewing angle is increased by scattering the incident light having a wide scattering angle.
기타, 본 발명은 그 요지를 일탈하지 않는 범위에서 다양하게 변경하여 실시할 수 있다.In addition, this invention can be implemented in various changes within the range which does not deviate from the summary.
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| KR100838185B1 (en) * | 2001-09-24 | 2008-06-13 | 엘지디스플레이 주식회사 | Array substrate, liquid crystal display device using same, and manufacturing method thereof |
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| JPH07140489A (en) * | 1993-11-18 | 1995-06-02 | Canon Inc | Liquid crystal display |
| JPH0815726A (en) * | 1994-06-29 | 1996-01-19 | Hitachi Ltd | Liquid crystal display substrate and manufacturing method thereof |
| JPH0829804A (en) * | 1994-07-15 | 1996-02-02 | Casio Comput Co Ltd | Active matrix liquid crystal display |
| JPH0895086A (en) * | 1994-09-22 | 1996-04-12 | Casio Comput Co Ltd | Active matrix panel for liquid crystal display device and manufacturing method thereof |
| JPH08101400A (en) * | 1994-09-30 | 1996-04-16 | Sanyo Electric Co Ltd | Liquid crystal display device |
| KR19990072894A (en) * | 1998-02-24 | 1999-09-27 | 니시무로 타이죠 | A array substrate of liquid crystal display element, liquid crystal display element using the array substrate and method for manufac turing array substrate |
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| JPH07140489A (en) * | 1993-11-18 | 1995-06-02 | Canon Inc | Liquid crystal display |
| JPH0815726A (en) * | 1994-06-29 | 1996-01-19 | Hitachi Ltd | Liquid crystal display substrate and manufacturing method thereof |
| JPH0829804A (en) * | 1994-07-15 | 1996-02-02 | Casio Comput Co Ltd | Active matrix liquid crystal display |
| JPH0895086A (en) * | 1994-09-22 | 1996-04-12 | Casio Comput Co Ltd | Active matrix panel for liquid crystal display device and manufacturing method thereof |
| JPH08101400A (en) * | 1994-09-30 | 1996-04-16 | Sanyo Electric Co Ltd | Liquid crystal display device |
| KR19990072894A (en) * | 1998-02-24 | 1999-09-27 | 니시무로 타이죠 | A array substrate of liquid crystal display element, liquid crystal display element using the array substrate and method for manufac turing array substrate |
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| US8912543B2 (en) | 2012-09-10 | 2014-12-16 | Samsung Display Co., Ltd. | Display device |
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