KR20000015172A - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- KR20000015172A KR20000015172A KR1019980034938A KR19980034938A KR20000015172A KR 20000015172 A KR20000015172 A KR 20000015172A KR 1019980034938 A KR1019980034938 A KR 1019980034938A KR 19980034938 A KR19980034938 A KR 19980034938A KR 20000015172 A KR20000015172 A KR 20000015172A
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- array substrate
- color filter
- liquid crystal
- black matrix
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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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)
- Liquid Crystal (AREA)
Abstract
Description
본 발명은 액정 패널에 관한 것으로, 보다 상세하게는, 어레이 기판과 컬러필터 기판간을 트랜스퍼의 개재없이 직접 접속시킨 액정 패널에 관한 것이다.The present invention relates to a liquid crystal panel, and more particularly, to a liquid crystal panel in which an array substrate and a color filter substrate are directly connected without intervening transfer.
일반적으로, 액정 패널(Liquid Crystal Panel)은 매트릭스 형태로 화소가 배열로 되어 있는 어레이 기판과, 레드(Red), 블루(Blue) 및 그린(Green)의 컬러필터가 반복적으로 배열되어 있는 컬러필터 기판이 액정을 사이에 두고 합착된 구조이다.In general, a liquid crystal panel includes an array substrate in which pixels are arranged in a matrix form, and a color filter substrate in which red, blue, and green color filters are repeatedly arranged. It is a structure bonded together with this liquid crystal between them.
이러한 액정 패널의 전형적인 예가 도 1 에 도시되어 있는바, 이를 설명하면 다음과 같다.A typical example of such a liquid crystal panel is shown in FIG. 1, which will be described below.
도시된 바와 같이, 액정 패널은 어레이 기판(1)과 컬러필터 기판(5)이 액정(도시안됨)을 사이에 두고 실재(Seal : 4)에 의해 합착되어진 형태로서, 어레이 기판(1) 상에는 각 화소의 구동을 제어하기 위한 박막 트랜지스터(도시안됨)가 형성되어 있으며, 화소영역에는 ITO(Indium Tin Oxide) 금속으로된 화소전극(2)이 형성되어 있다.As shown, the liquid crystal panel is a form in which the array substrate 1 and the color filter substrate 5 are bonded by a real (Seal) 4 with a liquid crystal (not shown) interposed therebetween, A thin film transistor (not shown) for controlling driving of the pixel is formed, and a pixel electrode 2 made of indium tin oxide (ITO) metal is formed in the pixel region.
그리고, 컬러필터 기판(5) 상에는 화소전극에 대향하는 부분에 컬러필터(6)가 형성되어 있으며, 박막 트랜지스터와 대향하는 부분에는 블랙 매트릭스(7)가 형성되어 있고, 이러한 컬러필터(6) 및 블랙 매트릭스(7)를 포함한 전체 상부면에는 ITO 금속으로된 상대전극(8)이 형성되어 있다.On the color filter substrate 5, a color filter 6 is formed in a portion facing the pixel electrode, and a black matrix 7 is formed in a portion facing the thin film transistor. Such a color filter 6 and The counter electrode 8 made of ITO metal is formed on the entire upper surface including the black matrix 7.
계속해서, 실재(3)의 외측, 즉, 액정 패널의 가장자리 부분에는 어레이 기판(1) 상에 형성된 화소전극(2)과 컬러필터 기판(5) 상에 형성된 상대전극(8)간을 연결시켜 상기 어레이 기판(1)과 컬러필터 기판(5)간을 전기적으로 도통시키는 트랜스퍼(Transfer : 4)가 형성되어 있다. 이때, 트랜스퍼(4)는 통상 은 페이스트(Ag Paste) 또는 도전성 볼이 사용된다.Subsequently, the pixel electrode 2 formed on the array substrate 1 and the counter electrode 8 formed on the color filter substrate 5 are connected to the outer side of the real material 3, that is, the edge portion of the liquid crystal panel. A transfer 4 which electrically conducts between the array substrate 1 and the color filter substrate 5 is formed. At this time, as the transfer 4, silver paste (Ag Paste) or conductive balls are usually used.
그러나, 상기와 같은 액정 패널의 제조 공정에서는 독립된 각각의 공정을 통해 어레이 기판 및 컬러필터 기판을 제작한 후에, 액정 패널의 가장자리 부분, 즉, 화소전극과 상대전극이 접속될 부분에 은 페이스트를 디스펜싱(Dispensing)시켜 상기 어레이 기판과 컬러필터 기판간을 전기적으로 도통시켜야 하기 때문에 공정이 복잡함은 물론, 은 페이스트의 디스펜싱 장비를 필요로하게 되어 액정 패널의 제조 비용이 증가하게 되고, 또한, 생산성 저하 및 공정 불량이 발생되는 문제점이 있었다.However, in the manufacturing process of the liquid crystal panel as described above, after fabricating the array substrate and the color filter substrate through separate processes, the silver paste is dispensed on the edge portion of the liquid crystal panel, that is, the portion where the pixel electrode and the counter electrode are to be connected. The process is complicated because of the electrical conduction between the array substrate and the color filter substrate by fencing, and the dispensing equipment of silver paste is required, thereby increasing the manufacturing cost of the liquid crystal panel and increasing productivity. There was a problem that degradation and process failure occurs.
따라서, 상기와 같은 문제점을 해결하기 위하여 안출된 본 발명은, 트랜스퍼를 형성하기 위한 공정을 삭제시킴으로써, 공정을 단순화시킴과 동시에 생산성을 향상시킬 수 있는 액정 패널을 제공하는데, 그 목적이 있다.Accordingly, an object of the present invention is to provide a liquid crystal panel capable of simplifying the process and improving productivity by eliminating the process for forming the transfer.
도 1은 종래 액정 패널을 설명하기 위한 단면도.1 is a cross-sectional view for explaining a conventional liquid crystal panel.
도 2는 본 발명의 실시예에 따른 컬러필터 기판을 도시한 도면.2 is a view showing a color filter substrate according to an embodiment of the present invention.
도 3은 본 발명의 실시예에 따른 컬러필터 기판과 통상의 어레이 기판을 합착시킨 상태를 나타내는 도면.3 is a view showing a state in which a color filter substrate and a conventional array substrate are bonded together according to an embodiment of the present invention.
(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)
11 : 컬러필터 기판 12 : 블랙 매트릭스11: color filter substrate 12: black matrix
13 : 레드 필터 14 : 그린 필터13: red filter 14: green filter
15 : 블루 필터 17 : 상대전극15 blue filter 17 counter electrode
21 : 어레이 기판 22 : 화소전극21: array substrate 22: pixel electrode
상기와 같은 목적을 달성하기 위한 본 발명의 액정 패널은, 상부면에 박막 트랜지스터 및 IOT 금속으로된 화소전극이 형성된 어레이 기판; 상기 어레이 기판과 소정 간격 이격되어 대향되게 합착되며, 상부면 적소에는 블랙 매트릭스 및 레드, 블루, 그린의 컬러필터들이 형성되고, 상기 블랙 매트릭스 및 컬러필터들을 포함한 전면 상에는 ITO 금속으로된 상대전극이 형성된 컬러필터 기판; 및 상기 어레이 기판과 컬러필터 기판 사이의 공간에 개재되는 액정을 포함하는 액정 패널로서, 상기 컬러필터 기판에는 어레이 기판의 화소전극과 콘택될 가장자리 부분에 블랙 매트릭스와 레드, 그린 및 블루 필터들이 적층되어 있고, 상기 상대전극은 적층물들을 감싸도록 형성되어 어레이 기판의 화소전극과 직접 콘택되어 있는 것을 특징으로 한다.According to an aspect of the present invention, there is provided a liquid crystal panel including: an array substrate having a thin film transistor and a pixel electrode formed of an IOT metal on an upper surface thereof; The array substrate is spaced apart from each other at a predetermined interval, and is bonded to each other. A black matrix and color filters of red, blue, and green are formed on the upper surface, and a counter electrode made of ITO metal is formed on the entire surface including the black matrix and color filters. Color filter substrates; And a liquid crystal interposed in a space between the array substrate and the color filter substrate, wherein the black filter, red, green, and blue filters are stacked on an edge portion of the array substrate to contact the pixel electrode of the array substrate. The counter electrode is formed to surround the stacks and is in direct contact with the pixel electrode of the array substrate.
본 발명에 따르면, 화소전극과 상대전극을 직접 콘택시킬 수 있기 때문에 은 페이스트의 디스펜싱 공정을 삭제시킬 수 있다.According to the present invention, since the pixel electrode and the counter electrode can be directly contacted, the dispensing process of the silver paste can be eliminated.
이하, 첨부된 도면에 의거하여 본 발명의 실시예를 보다 상세하게 설명하도록 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 실시예에 따른 컬러필터 기판의 일부분을 도시한 도면으로서, 도시된 바와 같이, 컬러필터 기판(11)의 가장자리 부분, 즉, 어레이 기판과 콘택될 부분에 블랙 매트릭스(12) 및 R 필터, G 필터, B 필터들(13, 14, 15)가 적층되도록 하고, ITO 금속으로된 상대전극(16)은 상기 적층물을 감싸도록 형성한다.FIG. 2 is a view illustrating a portion of a color filter substrate according to an exemplary embodiment of the present invention. As illustrated, the black matrix 12 is formed at an edge portion of the color filter substrate 11, that is, a portion to be contacted with the array substrate. And the R filter, the G filter, and the B filters 13, 14, and 15 are stacked, and the counter electrode 16 made of ITO metal is formed to surround the stack.
여기서, 블랙 매트릭스(12) 및 R, G, B 필터들(13, 14, 15)의 적층물들을 형성하기 위해서는 컬러필터 기판(11)의 적소에 블랙 매트릭스 및 R 필터, G 필터, B 필터를 배치시키기 각각의 공정에서 상기 컬러필터 기판(11)의 가장자리 부분에 상기 블랙 매트릭스, R 필터, G 필터, B 필터들이 잔류되도록 식각하여 형성한다.Here, in order to form stacks of the black matrix 12 and the R, G, and B filters 13, 14, and 15, the black matrix and the R filter, the G filter, and the B filter are placed in place of the color filter substrate 11. In each process, the black matrix, the R filter, the G filter, and the B filters are etched and formed on the edge of the color filter substrate 11.
이때, 블랙 매트릭스는 2㎛ 정도, R 필터, G 필터, 및 B 필터들은 각각 1㎛ 정도로 형성하여 통상의 셀 갭(Cell Gap)인 5㎛ 정도가 되도록 함으로써, 이후에 이러한 컬러필터 기판과 화소전극이 구비된 어레이 기판의 합착시에 상대전극과 화소전극이 트랜스퍼의 개재없이 직접 콘택되도록 만든다.In this case, the black matrix is formed at about 2 μm, and the R filter, the G filter, and the B filters are formed at about 1 μm, respectively, so as to have a thickness of about 5 μm, which is a normal cell gap. When the array substrate is provided, the counter electrode and the pixel electrode are directly contacted without interposing the transfer.
도 3은 상기한 형태로 제작된 컬러필터 기판과 통상의 공정을 통해 제작된 어레이 기판을 합착시킨 상태를 도시한 도면으로서, 도시된 바와 같이, 상부면 가장자리 부분에 블랙 매트릭스(12)와 컬러필터들(13, 14, 15)이 적층되고, 이 적층물이 덮히도록 전면 상에 상대전극(16)이 형성되어진 컬러필터 기판(11)과, 상부면에 화소전극(22)이 형성된 어레이 기판(21)은 실재(도시안됨)에 의해 합착된다.3 is a view illustrating a state in which a color filter substrate manufactured in the above-described form and an array substrate manufactured through a conventional process are bonded together. As illustrated, the black matrix 12 and the color filter are formed at the edges of the upper surface. Field 13, 14, 15 are stacked, a color filter substrate 11 having a counter electrode 16 formed thereon so as to cover the stack, and an array substrate having pixel electrodes 22 formed thereon. 21 is joined by reality (not shown).
이때, 컬러필터 기판(11) 상에 형성되어 있는 상대전극(16)은 어레이 기판의 화소전극과 콘택될 부분이 셀 갭에 해당하는 높이로 돌출되어 있기 때문에 상기 상대전극과 화소전극은 트랜스퍼의 개재없이도 직접 콘택된다. 이에 따라, 공통 신호의 인가시에는 어레이 기판의 화소전극에 인가된 신호는 컬러필터 기판의 상대전극에 직접 전달된다.In this case, since the counter electrode 16 formed on the color filter substrate 11 protrudes to a height corresponding to the cell gap, the counter electrode 16 of the array substrate is interposed with the transfer electrode. Contact is made directly without. Accordingly, when the common signal is applied, the signal applied to the pixel electrode of the array substrate is directly transmitted to the counter electrode of the color filter substrate.
그러므로, 화소전극과 상대전극이 직접 콘택되기 때문에 종래와 같이 화소전극과 상대전극간을 도통시키기 위한 은 페이스트의 디스펜싱 공정을 삭제시킬 수 있게 되며, 이에 따라, 공정의 단순화를 얻을 수 있게 된다.Therefore, since the pixel electrode and the counter electrode are directly contacted, it is possible to eliminate the silver paste dispensing process for conducting the pixel electrode and the counter electrode as in the prior art, thereby simplifying the process.
이상에서와 같이, 본 발명은 컬러필터 기판의 제조시에 어레이 기판의 화소전극과 콘택될 부분에 셀 갭에 해당하는 두께로 블랙 매트릭스 및 컬러필터들이 적층되도록 하고, 상대전극은 이러한 적층물을 감싸도록 형성함으로써, 어레이 기판과 컬러필터간의 합착시에 화소전극과 상대전극간을 직접 콘택시킬 수 있으며, 이에 따라, 트랜스퍼 형성 공정을 삭제시킬 수 있는 것에 기인하여 공정의 단순화 및 생산성 향상을 꾀할 수 있으며, 아울러, 공정 불량을 방지할 수 있다.As described above, the present invention allows the black matrix and the color filters to be stacked in a thickness corresponding to a cell gap in a portion to be contacted with the pixel electrode of the array substrate during the manufacture of the color filter substrate, and the counter electrode surrounds the stack. In this case, the contact between the pixel electrode and the counter electrode can be directly contacted when the array substrate and the color filter are bonded together. Thus, the transfer forming process can be eliminated, thereby simplifying the process and improving productivity. In addition, process defects can be prevented.
한편, 여기에서는 본 발명의 특정 실시예에 대하여 설명하고 도시하였지만, 당업자에 의하여 이에 대한 수정과 변형을 할 수 있다. 따라서, 이하, 특허청구의 범위는 본 발명의 진정한 사상과 범위에 속하는 한 모든 수정과 변형을 포함하는 것으로 이해할 수 있다.Meanwhile, although specific embodiments of the present invention have been described and illustrated, modifications and variations can be made by those skilled in the art. Accordingly, the following claims are to be understood as including all modifications and variations as long as they fall within the true spirit and scope of the present invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980034938A KR20000015172A (en) | 1998-08-27 | 1998-08-27 | Liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980034938A KR20000015172A (en) | 1998-08-27 | 1998-08-27 | Liquid crystal display panel |
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| KR20000015172A true KR20000015172A (en) | 2000-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980034938A KR20000015172A (en) | 1998-08-27 | 1998-08-27 | Liquid crystal display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100477605B1 (en) * | 2002-06-29 | 2005-03-18 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Integrated Touch Panel |
| KR100981633B1 (en) * | 2003-09-29 | 2010-09-10 | 삼성전자주식회사 | Liquid crystal display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07311378A (en) * | 1994-05-18 | 1995-11-28 | Toppan Printing Co Ltd | Liquid crystal display device |
| JPH0949916A (en) * | 1995-08-07 | 1997-02-18 | Toray Ind Inc | Color filter and color liquid crystal display device |
| JPH0980447A (en) * | 1995-09-08 | 1997-03-28 | Toshiba Electron Eng Corp | Liquid crystal display element |
| JPH10153797A (en) * | 1996-09-26 | 1998-06-09 | Toshiba Corp | Liquid crystal display device |
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1998
- 1998-08-27 KR KR1019980034938A patent/KR20000015172A/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07311378A (en) * | 1994-05-18 | 1995-11-28 | Toppan Printing Co Ltd | Liquid crystal display device |
| JPH0949916A (en) * | 1995-08-07 | 1997-02-18 | Toray Ind Inc | Color filter and color liquid crystal display device |
| JPH0980447A (en) * | 1995-09-08 | 1997-03-28 | Toshiba Electron Eng Corp | Liquid crystal display element |
| JPH10153797A (en) * | 1996-09-26 | 1998-06-09 | Toshiba Corp | Liquid crystal display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100477605B1 (en) * | 2002-06-29 | 2005-03-18 | 엘지.필립스 엘시디 주식회사 | Liquid Crystal Display Integrated Touch Panel |
| KR100981633B1 (en) * | 2003-09-29 | 2010-09-10 | 삼성전자주식회사 | Liquid crystal display apparatus |
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