KR100325844B1 - Liquid crystal display panel and method of fabricating electrodes thereof - Google Patents

Liquid crystal display panel and method of fabricating electrodes thereof Download PDF

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Publication number
KR100325844B1
KR100325844B1 KR1019940038314A KR19940038314A KR100325844B1 KR 100325844 B1 KR100325844 B1 KR 100325844B1 KR 1019940038314 A KR1019940038314 A KR 1019940038314A KR 19940038314 A KR19940038314 A KR 19940038314A KR 100325844 B1 KR100325844 B1 KR 100325844B1
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South Korea
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liquid crystal
crystal display
display panel
electrode
transparent electrode
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KR1019940038314A
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Korean (ko)
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KR960024525A (en
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이승배
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삼성에스디아이 주식회사
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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
    • 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
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: A liquid crystal display panel and a method of fabricating electrodes of the panel are provided to metalize a specific part of electrodes of the liquid crystal display panel to produce electrodes with low resistance. CONSTITUTION: A transparent electrode is formed on a substrate. A metal layer is formed on the marginal portion of the transparent electrode other than an active region. The metal layer is patterned into a predetermined pattern. Then, the transparent electrode is patterned into a predetermined electrode pattern. The transparent electrode is formed of sputtering or molecular beam epitaxy. The metal layer is formed using sputtering. The metal layer is formed of nickel.

Description

액정 표시 패널 및 그 전극 제조 방법Liquid crystal display panel and its electrode manufacturing method

본 발명은 액정 표시 패널 및 그 전극 제조 방법에 관한 것으로, 상세하게는 표시 화상을 고품위로 실현하기 위하여 투명 전극의 자체 저항을 줄이기 위한 액정 표시 패널 및 그 전극 제조 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel and a method for manufacturing the electrode thereof, and more particularly, to a liquid crystal display panel and a method for manufacturing the electrode for reducing the self-resistance of the transparent electrode in order to realize a high quality display image.

제1도는 종래의 액정 표시 패널의 평면도이다. 이 도면에 도시된 바와같이, 종래에는 액정 표시 패널의 전극 전체를 ITO(indium tin oxide) 투명 전극 등으로 사용하였다. 그러나 ITO 전극은 라인 저항값이 10 Ω/□ 로 상당히 커서 화상 표시 품질을 향상시키는데 문제가 많았다.1 is a plan view of a conventional liquid crystal display panel. As shown in this figure, conventionally, the entire electrode of a liquid crystal display panel was used as an indium tin oxide (ITO) transparent electrode. However, the ITO electrode has a large line resistance value of 10 Ω / □, which is problematic in improving image display quality.

본 발명은 상기와 같은 문제점을 개선하고자 창안된 것으로, 액정 패널의 전극의 일정 부분을 금속화시켜 저저항의 전극 및 그 제조 방법을 제공하는데 그 목적이 있다.The present invention was devised to improve the above problems, and an object thereof is to provide a low resistance electrode and a method of manufacturing the same by metalizing a portion of an electrode of a liquid crystal panel.

상기와 같은 목적을 달성하기 위하여 본 발명에 따른 액정 표시 패널은, 주사 전극들, 데이타 전극들 및 상기 주사 전극들과 데이터 전극들 사이의 액정이 형성된 액정 표시 패널이다. 이 패널에서는, 영상을 표시하는 액티브 영역 이외의 비액티브 영역에 형성된 상기 주사 전극들 및 데이타 전극들의 가장자리 부분에 금속막이 형성된다.In order to achieve the above object, the liquid crystal display panel according to the present invention is a liquid crystal display panel in which scan electrodes, data electrodes, and liquid crystal between the scan electrodes and the data electrodes are formed. In this panel, a metal film is formed on the edges of the scan electrodes and data electrodes formed in the inactive regions other than the active region displaying the image.

바람직하게는, 상기 가장자리 부분이 니켈(Ni)로 도금된다.Preferably, the edge portion is plated with nickel (Ni).

또한 상기와 같은 목적을 달성하기 위하여 본 발명에 따른 액정 표시 패널의 전극 제조 방법은,In addition, in order to achieve the above object, the electrode manufacturing method of the liquid crystal display panel according to the present invention,

기판 상면에 투명 전극을 형성하는 단계;Forming a transparent electrode on an upper surface of the substrate;

액티브 영역 이외의 상기 투명 전극 가장자리 부분의 상면에 금속막을 형성하는 단계;Forming a metal film on an upper surface of the edge portion of the transparent electrode other than an active region;

상기 금속막을 패터닝하는 단계;Patterning the metal film;

그리고 상기 투명 전극을 패터닝하는 단계를 포함한다.And patterning the transparent electrode.

이하 도면을 참조하면서 본 발명에 따른 액정 표시 패널의 전극을 설명한다.Hereinafter, an electrode of a liquid crystal display panel according to the present invention will be described with reference to the drawings.

제2도는 본 발명에 따른 액정 표시 패널의 평면도이다.2 is a plan view of a liquid crystal display panel according to the present invention.

이 도면에 도시된 바와 같이, 본 발명의 액정 표시 패널은 전극 구성에 있어서 실제 화면 표시 영역(active area)을 제외한 모든 주사 전극 및 데이타 전극 라인들의 가장자리 부분을 금속화(금속막을 증착시켜)시켜 저저항의 액정 표시 패널을 제조한다. 이 방법은 액정 표시 패널의 주사 전극 및 데이타 전극 모두에 적용된다. 이 때 사용되는 금속막의 재료로는 Ni를 사용한다.As shown in this figure, the liquid crystal display panel of the present invention metalizes (by depositing a metal film) the edges of all scan electrode and data electrode lines except for the actual active area in the electrode configuration. A resistive liquid crystal display panel is manufactured. This method is applied to both the scan electrode and the data electrode of the liquid crystal display panel. Ni is used as a material of the metal film used at this time.

한편, 이와 같이 자체 저항값이 높은 투명 전극의 자체 저항값을 줄이기 위한 전극의 제조 방법은 다음과 같다.On the other hand, the manufacturing method of the electrode for reducing the self-resistance value of the transparent electrode having a high self-resistance value as follows.

1. 전면 및 배면 기판상에 투명 ITO 전극막을 스퍼터링법에 의해 각각 증착한다.1. A transparent ITO electrode film is deposited on the front and back substrates by sputtering, respectively.

2. 상기 ITO 전극막이 형성된 각 기판 상의 실제 화상을 표시하는 액티브 영역 이외의 가장자리의 비액티브 영역에 스퍼터링법 혹은 MBE(Molecular Beam Epitaxy)법 등으로 금속막을 증착한다. 여기서, MBE법이란, 중성(中性)인 분자들의 비임 즉, 금속의 분자들의 비임을 가장자리의 비액티브 영역에 주사하여 성장시키는 방법을 말한다.2. A metal film is deposited by sputtering, Molecular Beam Epitaxy (MBE), or the like on the inactive regions at the edges other than the active region that displays the actual image on each substrate on which the ITO electrode films are formed. Here, the MBE method refers to a method of growing a beam of neutral molecules, that is, a beam of metal molecules by scanning the non-active region of the edge.

3. 금속막이 증착된 영역을 패터닝하여 외부와의 접속 단자를 형성한다.3. The region where the metal film is deposited is patterned to form a connection terminal with the outside.

4. 상기 금속막 패턴과 연장되게 액티브 영역의 ITO 전극막을 패터닝하여 투명 전극을 형성한다.4. The transparent electrode is formed by patterning the ITO electrode film in the active region to extend with the metal film pattern.

이상 설명한 바와 같이, 본 발명에 따른 액정 표시 패널 및 그 전극 제조 방법은 액정 표시 패널에 형성된 데이타 전극 및 주사 전극의 ITO 투명 전극의 상대적 고저항에 따른 표시 화상의 품위 저하를 개선하기 위하여 액티브 영역(화상 표시 영역) 이외의 가장자리의 투명 전극 부분을 금속화하여 전기 전도성을 개선함으로써, 비교적 고품위의 화상을 얻도록 한 것으로 통상의 스퍼터링법이나 MBE(Molecular Beam Epitaxy)법을 사용하여 투명 전극 상에 전기 전도성이 좋은 Ni 등의 금속을 증착하는 손쉬운 방법을 사용함으로써, 생산비의 증가를 최대한 억제하면서 전극 자체의 저항값을 줄여 고품위의 화상을 실현 할 수 있도록 하는 장점이 있다.As described above, the liquid crystal display panel and the method of manufacturing the electrode thereof according to the present invention are used to improve the deterioration of the display image due to the relative high resistance of the ITO transparent electrode of the data electrode and the scan electrode formed on the liquid crystal display panel. By improving the electrical conductivity by metalizing the transparent electrode portions at the edges other than the image display area, an image of a relatively high quality is obtained, and the electroplated on the transparent electrode using the conventional sputtering method or MBE (Molecular Beam Epitaxy) method By using an easy method of depositing a metal such as Ni, which has good conductivity, there is an advantage that a high quality image can be realized by reducing the resistance value of the electrode itself while minimizing an increase in production cost.

제1도는 종래의 액정 표시 패널의 평면도이고,1 is a plan view of a conventional liquid crystal display panel,

제2도는 본 발명에 따른 액정 표시 패널의 평면도이다.2 is a plan view of a liquid crystal display panel according to the present invention.

Claims (6)

주사 전극들, 데이타 전극들 및 상기 주사 전극들과 데이터 전극들 사이의 액정이 형성된 액정 표시 패널에 있어서,A liquid crystal display panel in which scan electrodes, data electrodes, and liquid crystal between the scan electrodes and the data electrodes are formed. 영상을 표시하는 액티브 영역 이외의 비액티브 영역에 형성된 상기 주사 전극들 및 데이타 전극들의 가장자리 부분에 금속막이 형성된 액정 표시 패널.And a metal film formed at edges of the scan electrodes and data electrodes formed in an inactive region other than an active region displaying an image. 제1항에 있어서,The method of claim 1, 상기 가장자리 부분이 니켈(Ni)로 도금된 액정 표시 패널.A liquid crystal display panel in which the edge portion is plated with nickel (Ni). 기판 상면에 투명 전극을 형성하는 단계;Forming a transparent electrode on an upper surface of the substrate; 액티브 영역 이외의 상기 투명 전극 가장자리 부분의 상면에 금속막을 형성하는 단계;Forming a metal film on an upper surface of the edge portion of the transparent electrode other than an active region; 상기 금속막을 패터닝하는 단계;Patterning the metal film; 그리고 상기 투명 전극을 패터닝하는 단계를 포함하는 액정 표시 패널의 전극 제조 방법.And patterning the transparent electrode. 제3항에 있어서, 상기 투명 전극을 형성하는 단계에서, 스퍼터링법이 이용된 액정 표시 패널의 전극 제조 방법.The method of manufacturing an electrode of a liquid crystal display panel according to claim 3, wherein in the forming of the transparent electrode, sputtering is used. 제3항에 있어서, 상기 금속막을 형성하는 단계에서, 스퍼터링법이 이용된 액정 표시 패널의 전극 제조 방법.The method of manufacturing an electrode of a liquid crystal display panel according to claim 3, wherein, in the forming of the metal film, sputtering is used. 제3항에 있어서, 상기 투명 전극을 형성하는 단계에서, MBE(Molecular Beam Epitaxy)법이 이용된 액정 표시 패널의 전극 제조 방법.The method of claim 3, wherein the forming of the transparent electrode comprises using a molecular beam epitaxy (MBE) method.
KR1019940038314A 1994-12-28 1994-12-28 Liquid crystal display panel and method of fabricating electrodes thereof KR100325844B1 (en)

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KR1019940038314A KR100325844B1 (en) 1994-12-28 1994-12-28 Liquid crystal display panel and method of fabricating electrodes thereof

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KR100325844B1 true KR100325844B1 (en) 2002-09-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100422272B1 (en) * 1996-11-04 2004-06-16 엘지.필립스 엘시디 주식회사 Method for fabricating lcd and lcd fabricated by the same
KR19990054284A (en) * 1997-12-26 1999-07-15 김영환 Liquid crystal display element
KR100811644B1 (en) * 2002-03-07 2008-03-11 엘지.필립스 엘시디 주식회사 Methode of surface activation for electrode plating ITO surface
KR100788310B1 (en) * 2002-03-07 2007-12-27 엘지.필립스 엘시디 주식회사 Method of Ag electroless plating on ITO electrode

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