JP5314085B2 - 横電界方式の液晶表示装置用アレイ基板とその製造方法 - Google Patents
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- G—PHYSICS
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- 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
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/0004—Devices characterised by their operation
- H01L33/0041—Devices characterised by their operation characterised by field-effect operation
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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
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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
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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
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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]
-
- 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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- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Thin Film Transistor (AREA)
Description
従って、液晶の分子配列方向を任意に調節すると、光学的異方性によって液晶の分子配列方向に光が屈折して画像情報を表現する。
液晶表示装置は、共通電極が形成されたカラーフィルター基板(上部基板)と画素電極が形成されたアレイ基板(下部基板)と、両基板間に充填された液晶とで構成されるが、このような液晶表示装置は、共通電極と画素電極が上下に印加される電場によって液晶を駆動する方式であって、透過率と開口率等の特性が優れる。
図1は、従来の第1例による横電界方式の液晶表示装置の概略的な構成を示した断面図である。
図1に示したように、従来の第1例による横電界方式の液晶表示装置は、下部基板10と上部基板40が一定間隔を置いて向かい合っており、下部基板10と上部基板40間には、液晶層LCが位置する。
すなわち、第1マスク工程によってゲート電極及びゲート配線を形成して、第2マスク工程によってアクティブ層及びオーミックコンタクト層に積層された半導体層を形成し、第3マスク工程によってソース電極及びドレイン電極とデータ配線を形成して、第4マスク工程によって保護膜及びコンタクトホールを形成し、第5マスク工程によって共通電極及び画素電極を形成する。
図2に示したように、4マスク工程によって製作された横電界方式の液晶表示装置は、下部基板50と上部基板80が対向して構成されて、両基板間には、液晶層LCが介される。
図4A及び図4Bは、図3のIII−III線とIV−IV線に沿って切断して、これを参照して示した本発明の実施例1による横電界方式の液晶表示装置の断面図である。
従って、二つの構成要素間の短絡を防ぐために、遮断パターン110の幅を第2半導体層128の幅より狭く構成した。
この時、半透過部B3は、スイッチング領域Sのゲート電極102に対応して、遮断部B2は、スイッチング領域Sの他の部分及び遮断パターン110に対応して、透過部B1は、画素領域Pに対応する。
露光された感光層120を現像する工程を行う。
図9A及び図9Bに示したように、本発明の実施例3による横電界方式の液晶表示装置は、透明な第1基板200及び第2基板400を含み、両基板間には、液晶層LCが位置する。
従って、液晶パネルの画面に波縞雑音の発生が最小化される。
図10A及び図10Bに示したように、本発明の実施例4による横電界方式の液晶表示装置は、第1基板200及び第2基板400を含み、両基板間には、液晶層LCが位置する。
従って、上部と下部に構成された波縞雑音防止パターンによって液晶パネルの画面に波縞雑音が発生するのを防ぐ。
102:ゲート電極
104:ゲート配線
106:共通配線
108:共通パターン
110:遮断パターン
126:第1半導体層
128:第2半導体層
136:アクティブ層
138:ソース電極
140:ドレイン電極
142:データ配線
150:画素電極
152:共通電極
Claims (2)
- 基板と;
前記基板上に第1方向のゲート配線と;
前記ゲート配線と交差して画素領域を定義する第2方向のデータ配線と;
前記ゲート配線及びデータ配線に連結される薄膜トランジスタと;
前記薄膜トランジスタに連結される画素領域の画素電極と;
前記画素電極と交互に配置される画素領域の共通電極と;
前記データ配線の両側で部分的に露出される前記データ配線の下部の半導体層と;
前記半導体層の下部に位置して不透明物質で形成された第1遮断パターンと;
前記第1方向に沿って前記画素領域の両側に位置する第1共通配線と第2共通配線をさらに含み、
前記画素電極と前記共通電極は、同一層内に同一物質で形成され、
前記共通電極は、前記第2共通配線とコンタクトホールを通じて接触し、
前記第1共通配線は、前記薄膜トランジスタのドレイン電極と共にストレージキャパシターを形成し、
前記第1遮断パターンは前記半導体層と同じか、または広い幅を有することを特徴とする横電界方式の液晶表示装置用アレイ基板。 - 第1マスク工程によって、基板上にゲート配線及びゲート電極と遮断パターンを形成する段階と;
前記ゲート配線とゲート電極及び遮断パターンを含む前記基板上にゲート絶縁膜、純粋非晶質シリコン層、不純物非晶質シリコン層及び導電体層を形成する段階と;
第2マスク工程によって、前記導電体層と不純物非晶質シリコン層及び純粋非晶質シリコン層をパターニングして、前記ゲート配線と交差して画素領域を定義するデータ配線と、
第1半導体層、ソース電極及びドレイン電極、前記データ配線の両側で部分的に露出されて、前記遮断パターンの上部に位置する第2半導体層を形成する段階と;
第3マスク工程によって、前記ドレイン電極を露出する第1コンタクトホールを有する保護層を形成する段階と;
第4マスク工程によって、前記第1コンタクトホールを通じて前記ドレイン電極と接触する画素電極と、前記画素電極と交互に配置される共通電極を形成する段階とを含み、
前記第1マスク工程は、前記ゲート配線と平行であって、前記画素領域の両側に位置する第1及び第2共通配線を形成する段階をさらに含み、
前記共通電極は、前記第2共通配線とコンタクトホールを通じて接触し、
前記遮断パターンは前記第2半導体層と同じか、または広い幅を有し、
前記ゲート電極、前記ゲート絶縁膜、第1半導体層、前記ソース電極、及び、前記ドレイン電極は、前記ゲート配線及び前記データ配線に接続した薄膜トランジスタを構成し、
前記第1の共通配線は前記薄膜トランジスタの前記ドレイン電極と蓄積容量を形成する
ことを特徴とする横電界方式の液晶表示装置用アレイ基板の製造方法。
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US (4) | US8040445B2 (ja) |
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CN (1) | CN100523971C (ja) |
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CN100523971C (zh) | 2009-08-05 |
CN101059633A (zh) | 2007-10-24 |
KR20070103129A (ko) | 2007-10-23 |
TWI321361B (en) | 2010-03-01 |
KR101229413B1 (ko) | 2013-02-04 |
US20120008072A1 (en) | 2012-01-12 |
FR2899982B1 (fr) | 2016-11-25 |
US8040445B2 (en) | 2011-10-18 |
JP2011203748A (ja) | 2011-10-13 |
JP5559099B2 (ja) | 2014-07-23 |
US8223281B2 (en) | 2012-07-17 |
TW200742085A (en) | 2007-11-01 |
US8525944B2 (en) | 2013-09-03 |
DE102006057773A1 (de) | 2007-10-31 |
GB0624956D0 (en) | 2007-01-24 |
DE102006057773B4 (de) | 2013-03-28 |
JP2011164658A (ja) | 2011-08-25 |
US20070242203A1 (en) | 2007-10-18 |
GB2437326A (en) | 2007-10-24 |
US20130102098A1 (en) | 2013-04-25 |
US8345175B2 (en) | 2013-01-01 |
JP4785730B2 (ja) | 2011-10-05 |
US20120270372A1 (en) | 2012-10-25 |
FR2899982A1 (fr) | 2007-10-19 |
GB2437326B (en) | 2008-06-18 |
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