KR100919194B1 - 화질이 개선된 횡전계모드 액정표시소자 - Google Patents
화질이 개선된 횡전계모드 액정표시소자Info
- Publication number
- KR100919194B1 KR100919194B1 KR1020020087472A KR20020087472A KR100919194B1 KR 100919194 B1 KR100919194 B1 KR 100919194B1 KR 1020020087472 A KR1020020087472 A KR 1020020087472A KR 20020087472 A KR20020087472 A KR 20020087472A KR 100919194 B1 KR100919194 B1 KR 100919194B1
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- Prior art keywords
- electrode
- substrate
- layer
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- liquid crystal
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 90
- 239000004065 semiconductor Substances 0.000 claims abstract description 61
- 230000005684 electric field Effects 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 158
- 239000000758 substrate Substances 0.000 claims description 47
- 239000010409 thin film Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000000116 mitigating effect Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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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
- G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
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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
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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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
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
- G02F1/136245—Active matrix addressed cells having more than one switching element per pixel having complementary transistors
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Liquid Crystal (AREA)
- Geometry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Ceramic Engineering (AREA)
- Computer Hardware Design (AREA)
- Spectroscopy & Molecular Physics (AREA)
Abstract
Description
Claims (19)
- 제1기판에 형성되어 복수의 화소를 정의하는 복수의 게이트라인 및 데이터라인;각 화소내에 배치되며, 제1기판 위에 형성된 게이트전극, 상기 게이트전극이 형성된 제1기판 전체에 걸쳐 적층된 게이트절연층, 상기 게이트절연층 위에 형성된 반도체층, 상기 반도체층 위에 형성된 소스전극 및 드레인전극으로 이루어진 박막트랜지스터;상기 박막트랜지스터가 형성된 제1기판 전체에 걸쳐 형성된 보호층;상기 화소내의 제1기판에 형성된 적어도 하나의 공통전극;상기 화소내에 공통전극과 실질적으로 평행하게 배치되어 횡전계를 형성하는 적어도 하나의 화소전극; 및상기 공통전극 위의 게이트절연층에 상기 공통전극 보다 큰 폭으로 절연층 또는 반도체층으로 형성되어 공통전극에 의한 보호층의 단차를 완화하는 제1단차완화층으로 구성된 횡전계모드 액정표시소자.
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- 제1항에 있어서, 상기 화소전극을 따라 배치되어 화소전극에 의한 단차를 완화하는 제2단차완화층을 추가로 포함하는 것을 특징으로 하는 횡전계모드 액정표시소자.
- 제6항에 있어서, 상기 제2단차완화층은 반도체층, 금속층 또는 절연층으로 이루어진 것을 특징으로 하는 횡전계모드 액정표시소자.
- 제1항에 있어서,제2기판;상기 제2기판에 형성되어 광을 차단하는 블랙매트릭스;상기 제2기판에 형성되어 컬러를 구현하는 컬러필터층; 및상기 제1기판 및 제2기판 사이에 형성된 액정층을 추가로 포함하는 것을 특징으로 하는 횡전계모드 액정표시소자.
- 제8항에 있어서, 상기 제1기판 및 제2기판에 각각 형성된 제1배향막 및 제2배향막을 추가로 포함하는 것을 특징으로 하는 횡전계모드 액정표시소자.
- 기판;기판에 형성되어 복수의 화소를 정의하는 복수의 게이트라인 및 데이터라인;각 화소내에 배치되며, 기판 위에 형성된 게이트전극, 상기 게이트전극이 형성된 기판 전체에 걸쳐 적층된 게이트절연층, 상기 게이트절연층 위에 형성된 반도체층, 상기 반도체층 위에 형성된 소스전극 및 드레인전극으로 이루어진 박막트랜지스터;상기 박막트랜지스터가 형성된 기판 전체에 걸쳐 형성된 보호층;상기 화소내에 형성된 적어도 하나의 공통전극;상기 화소내의 기판에 형성되어 공통전극과 실질적으로 평행하게 배치되어 횡전계를 형성하는 적어도 하나의 화소전극; 및상기 화소전극 위의 게이트절연층에 상기 화소전극 보다 큰 폭으로 절연층 또는 반도체층으로 형성되어 화소전극에 의한 보호층의 단차를 완화하는 단차완화층으로 구성된 횡전계모드 액정표시소자.
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- 기판;상기 기판에 형성되어 복수의 화소를 정의하는 복수의 게이트라인 및 데이터라인;각 화소내에 배치되며, 기판 위에 형성된 게이트전극, 상기 게이트전극이 형성된 기판 전체에 걸쳐 적층된 게이트절연층, 상기 게이트절연층 위에 형성된 반도체층, 상기 반도체층 위에 형성된 소스전극 및 드레인전극으로 이루어진 박막트랜지스터;상기 박막트랜지스터가 형성된 기판 전체에 걸쳐 형성된 보호층;;상기 화소내에 기판에 실질적으로 평행하게 배치되어 횡전계를 생성하는 적어도 하나의 제1전극 및 제2전극; 및상기 제1전극 및 제2전극 중 적어도 하나의 전극 위의 게이트절연층에 해당 전극 보다 큰폭으로 절연층 또는 반도체층으로 형성되어 해당 전극에 의한 보호층의 단차를 완화하는 단차완화층으로 구성된 횡전계모드 액정표시소자.
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Priority Applications (1)
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KR1020020087472A KR100919194B1 (ko) | 2002-12-30 | 2002-12-30 | 화질이 개선된 횡전계모드 액정표시소자 |
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KR1020020087472A KR100919194B1 (ko) | 2002-12-30 | 2002-12-30 | 화질이 개선된 횡전계모드 액정표시소자 |
Publications (2)
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KR20040061284A KR20040061284A (ko) | 2004-07-07 |
KR100919194B1 true KR100919194B1 (ko) | 2009-09-29 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19990060948A (ko) * | 1997-12-31 | 1999-07-26 | 김영환 | 횡전극구동 모드 박막트랜지스터 액정표시소자 |
KR20020005997A (ko) * | 2000-07-10 | 2002-01-18 | 가나이 쓰토무 | 액정 표시 장치 |
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2002
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR19990060948A (ko) * | 1997-12-31 | 1999-07-26 | 김영환 | 횡전극구동 모드 박막트랜지스터 액정표시소자 |
KR20020005997A (ko) * | 2000-07-10 | 2002-01-18 | 가나이 쓰토무 | 액정 표시 장치 |
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