JP6503721B2 - アレイ基板およびそれを用いた表示装置 - Google Patents
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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- 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
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- 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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- 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
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- 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
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
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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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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- H01L27/0203—Particular design considerations for integrated circuits
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Description
本実施の形態1に係る表示装置に用いられるアレイ基板の平面図を図1に示す。ガラス等からなる絶縁性基板100上に、図面上で垂直方向に延びる複数のソース線SLと図面上で水平方向に延びる複数のゲート線GLとが互いに垂直に交差するように形成されている。そして、これらソース線SLとゲート線GLとが互いに交差することにより区切られる各領域に画素電極PXが形成されている。図1においては簡略化のために画素電極PXを6個しか描いていないが、実際にはゲート線GL方向にm個、ソース線SL方向にn個の計m×n個の画素電極PXがマトリクス状に配置されることとなる。
実施の形態2の説明を行う前に、図4にダミー画素電極DPXと画素電極PXの平面図を示す。これは、図1において示されるG0Sn、G0Sn+1、G1Sn、G1Sn+1の4個の画素に対応した個所の平面図である。具体的には、ダミー画素電極DPX1がG0Snと対応し、ダミー画素電極DPX2がG0Sn+1と対応し、ダミー画素電極DPX3がG1Sn+1と対応する。さらに、画素電極PXはG1Snと対応する。また、図3で説明したように、図4においてもダミー画素電極DPX1、DPX2、DPX3は、隣接する2本のソース配線SLと重畳する領域OLを有している。さらに、画素電極PXはソース配線SLと重畳する領域を有していない。
図6に実施の形態3に係るダミー画素電極の一構成例を示す。本実施の形態3では、あるソース配線SLにおいてダミー画素電極DPX1と重畳する第1の領域OL1と、第1の領域OL1が形成されているソース配線SLと同じソース配線SLにおいてダミー画素電極DPX2と重畳する第2の領域OL2とが、そのソース配線SL上で対向しないことを特徴としている。さらに詳細には、第1の領域OL1と第2の領域OL2とは、ソース線SLの幅方向で対向しない形態であることを特徴としている。
実施の形態1〜3において、ダミー画素電極DPXがG0S0〜G0Sn+1まで同様に形成されているとすると、保護絶縁膜PSVが形成されないトラブルが生じた場合、すべてのソース配線SLがダミー画素電極DPXを介して電気的に一体として短絡されることになる。この場合も通常の検査によって、保護絶縁膜の未形成を検出することは可能である。しかし、必ずしもG0S0〜G0Sn+1に渡ってダミー画素電極DPXを設ける必要は無い。あらかじめ決めておいたダミー画素だけ、実施の形態1〜3に係る構成としておき、かかるダミー画素のみ検査を行うことによっても保護絶縁膜の未形成を検出することができる。
実施の形態1〜4では、ダミー画素電極DPXの形状を画素電極PXとは異なる形状に変更することにより、ダミー画素電極DPXとソース配線SLとに重畳部を形成した形態について説明をおこなった。しかし、実施の形態5では、ダミー画素電極DPXの形状にかような変更を加えることなく同様の効果を奏する形態について説明を行う。
図7における構成においてダミー画素のソース配線SLがG0S0〜G0Sn+1まで同様に太く形成されているとすると、保護絶縁膜PSVが形成されないトラブルが生じた場合、すべてのソース配線SLがダミー画素電極DPXを介して電気的に一体として短絡されることになる。この場合も通常の検査によって、保護絶縁膜の未形成を検出することは可能である。しかし、必ずしもG0S0〜G0Sn+1に渡ってダミー画素のソース配線SLを太くする必要は無い。あらかじめ決めておいたダミー画素だけ、実施の形態5に係る構成としておき、かかるダミー画素のみ検査を行うことによっても保護絶縁膜の未形成を検出することができる。
PX 画素電極、DPX ダミー画素電極、
SUB 基板、GL ゲート配線、SL ソース配線、
GI ゲート絶縁膜、SC 半導体膜、OC オーミックコンタクト膜、
S ソース電極、D ドレイン電極、PSV 保護絶縁膜(パッシベーション膜)、
OL、OL1、OL2 重畳領域
Claims (5)
- 基板上に、ゲート配線と、
前記ゲート配線とゲート絶縁膜を介して交差して形成されるソース配線と、
前記ソース配線を覆うパッシベーション膜と、
前記パッシベーション膜上に形成される画素電極と
を有するアレイ基板であって、
前記ゲート配線と前記ソース配線とが交差する近傍にスイッチング素子を有する領域である表示領域内において、
前記スイッチング素子が有するドレイン電極と前記画素電極とは前記パッシベーション膜に開口するコンタクトホールを介して互いに電気的に接続されており、
前記画素電極と前記ソース配線とは上面視で重畳する領域を有しておらず、
前記表示領域の外側に位置するダミー画素領域において、
ダミー画素電極と前記ダミー画素電極に隣接する両方のソース配線とは、互いに上面視で重畳する領域を有し、
前記重畳する領域は、前記ダミー画素電極の画素長よりも短く、
前記ソース配線上において第1のダミー画素電極と前記ソース配線とが重畳する第1の領域と、
前記第1のダミー画素電極に隣接する第2のダミー画素電極と前記ソース配線とが重畳する第2の領域とを有し、
前記第1の領域と前記第2の領域とが前記ソース配線上で対向しないことを特徴とするアレイ基板。 - 基板上に、ゲート配線と、
前記ゲート配線とゲート絶縁膜を介して交差して形成されるソース配線と、
前記ソース配線を覆うパッシベーション膜と、
前記パッシベーション膜上に形成される画素電極と
を有するアレイ基板であって、
前記ゲート配線と前記ソース配線とが交差する近傍にスイッチング素子を有する領域である表示領域内において、
前記スイッチング素子が有するドレイン電極と前記画素電極とは前記パッシベーション膜に開口するコンタクトホールを介して互いに電気的に接続されており、
前記画素電極と前記ソース配線とは上面視で重畳する領域を有しておらず、
前記表示領域の外側に位置するダミー画素領域において、
ダミー画素電極と前記ダミー画素電極に隣接する両方のソース配線とは、互いに上面視で重畳する領域を有し、
前記重畳する領域におけるソース配線の幅は、前記重畳する領域以外の領域におけるソース配線の幅よりも大きい箇所を有することを特徴とするアレイ基板。 - 前記ダミー画素電極は、前記画素電極よりも大きく形成されていることを特徴とする請求項1または2に記載のアレイ基板。
- 前記ダミー画素領域において、前記ダミー画素電極が前記ソース配線と重畳しないダミー画素を有することを特徴とする請求項1ないし3のいずれか1項に記載のアレイ基板。
- 請求項1ないし4のいずれか1項に記載のアレイ基板を用いた表示装置。
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JP2014251584A JP6503721B2 (ja) | 2014-12-12 | 2014-12-12 | アレイ基板およびそれを用いた表示装置 |
US14/962,238 US9564456B2 (en) | 2014-12-12 | 2015-12-08 | Array substrate and display device using the same |
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CN105404041B (zh) * | 2015-12-31 | 2018-10-16 | 京东方科技集团股份有限公司 | 显示基板母板及其制造和检测方法以及显示面板母板 |
US10121867B2 (en) | 2015-12-31 | 2018-11-06 | Taiwan Semiconductor Manufacturing Company Ltd. | Semiconductor structure and associated fabricating method |
TWI631402B (zh) * | 2017-06-20 | 2018-08-01 | 友達光電股份有限公司 | 陣列基板與顯示面板 |
CN108803173B (zh) * | 2018-07-02 | 2021-08-10 | 京东方科技集团股份有限公司 | 阵列基板及其制造方法、显示装置 |
JP7320407B2 (ja) * | 2019-08-26 | 2023-08-03 | 株式会社ジャパンディスプレイ | 表示装置 |
KR20210130333A (ko) * | 2020-04-21 | 2021-11-01 | 삼성디스플레이 주식회사 | 표시장치 및 그 검사방법 |
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JP2921864B2 (ja) | 1989-07-13 | 1999-07-19 | シチズン時計株式会社 | 液晶表示装置 |
JP3208658B2 (ja) | 1997-03-27 | 2001-09-17 | 株式会社アドバンスト・ディスプレイ | 電気光学素子の製法 |
TW440736B (en) * | 1997-10-14 | 2001-06-16 | Samsung Electronics Co Ltd | Liquid crystal displays and manufacturing methods thereof |
JP4516638B2 (ja) * | 1997-10-14 | 2010-08-04 | 三星電子株式会社 | 液晶表示装置用基板、液晶表示装置及びその製造方法 |
JP2003280036A (ja) * | 2002-03-26 | 2003-10-02 | Matsushita Electric Ind Co Ltd | 液晶表示装置 |
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JP5699741B2 (ja) * | 2011-03-29 | 2015-04-15 | セイコーエプソン株式会社 | 液晶装置および投射型表示装置 |
WO2014174891A1 (ja) * | 2013-04-25 | 2014-10-30 | シャープ株式会社 | 表示装置 |
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