JP2011028295A - 液晶表示装置 - Google Patents
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 88
- 239000010409 thin film Substances 0.000 claims abstract description 88
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 230000005684 electric field Effects 0.000 claims description 4
- 238000002834 transmittance Methods 0.000 abstract description 3
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- 238000010168 coupling process Methods 0.000 description 41
- 238000005859 coupling reaction Methods 0.000 description 41
- 101100489584 Solanum lycopersicum TFT1 gene Proteins 0.000 description 21
- 101100214488 Solanum lycopersicum TFT2 gene Proteins 0.000 description 21
- 239000010410 layer Substances 0.000 description 13
- 101100214491 Solanum lycopersicum TFT3 gene Proteins 0.000 description 12
- 239000010408 film Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 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
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 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
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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
-
- 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
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
-
- 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
- G02F1/134336—Matrix
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
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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)
- Spectroscopy & Molecular Physics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】絶縁基板上に形成されているゲート線とデータ線とが交差して定義する各画素領域ごとに、第1薄膜トランジスタに連結されている第1画素電極190aと、第1画素電極に連結されている結合電極と重なって第1画素電極に容量性結合されている第2画素電極190bを含み、第2画素電極は、維持電極線131に第2薄膜トランジスタを通じて電気的に連結されて、共通電極に対して第1画素電極の電圧より高い電圧が形成される。この時、第1画素電極は、第2画素電極より広い面積を有し、低い電圧は高い電圧に対して0.50-0.95の比率を有する。このようにして、側面視認性が向上した広視野角液晶表示装置を得ることができると同時に、良好な開口率及び透過率を確保することができる。
【選択図】図1
Description
第1基板と、
前記第1基板上に形成されている複数のゲート信号線と、
前記ゲート信号線と交差して画素を定義する複数のデータ信号線と、
前記画素領域に配置されており、互いに異なる面積を有する第1画素電極及び第2画素電極と、
前記第1画素電極に接続されている第1薄膜トランジスタと、
前記第2画素電極に接続されている第2薄膜トランジスタと、
前記第1基板と対向する第2基板と、
前記第1基板と前記第2基板との間に挿入されており、液晶分子を含む液晶層と、
を含み、
前記第1画素電極又は前記第2画素電極に電場が印加されると、前記液晶分子は、複数の傾斜方向定義部材により傾けられ、
前記液晶分子は、前記ゲート信号線又は前記データ信号線に応じて傾斜する、液晶表示装置を提供する。
Vb=1/(C1+2C2)×[(2-C3/C2)×(C1+C2)×Vd1]
となる。Vbは、前記した各々の容量を調節してVaに近接するが、Vaに比べて常に大きくなるように調節することができる。ここで、C1=Clca+Csta、C2=Ccpb、C3=Clcb+Cstbであり、ゲート電極とソース電極との間で発生する寄生容量は非常に小さいので考慮しなかった。
Vb=1/(C1+2C2)×[(2-C3/C2)×(C1+C2)×Vd1]
となる。Vbは、前記した各々の容量を調節してVaに近接するが、Vaに比べて常に大きくなるように調節することができる。ここで、C1=Clca+Csta、C2=Ccpb、C3=Clcb+Cstbであり、ゲート電極とソース電極との間で発生する寄生容量は非常に小さいので考慮しなかった。この式は、第1実施例と同様の式であり、Ccpbを調節することによって、Vaに対するVbの比率を調整することができる。Ccpbの調節は、結合電極176bと第2画素電極190bとの重畳面積及び距離を調整することによって可能である。
Vc=Va×[Ccpc/(Ccpc+Clcc)]
となり、Ccpc/(Ccpc+Clcc)は常に1より小さいので、VcはVaに比べて常に小さい。
123 ゲート電極
133a、133b、133c 維持電極
176 結合電極
171 データ線
173 ソース電極
175 ドレーン電極
190 画素電極
191、192、193 切開部
151、154 非晶質シリコン層
270 基準電極
271、272、273 切開部
Claims (13)
- 第1基板と、
前記第1基板上に形成されている複数のゲート信号線と、
前記ゲート信号線と交差して画素を定義する複数のデータ信号線と、
前記画素領域に配置されており、互いに異なる面積を有する第1画素電極及び第2画素電極と、
前記第1画素電極に接続されている第1薄膜トランジスタと、
前記第2画素電極に接続されている第2薄膜トランジスタと、
前記第1基板と対向する第2基板と、
前記第1基板と前記第2基板との間に挿入されており、液晶分子を含む液晶層と、
を含み、
前記第1画素電極又は前記第2画素電極に電場が印加されると、前記液晶分子は、複数の傾斜方向定義部材により傾けられ、
前記液晶分子は、前記ゲート信号線又は前記データ信号線に応じて傾斜する、液晶表示装置。 - 前記第1画素電極は、前記第2画素電極より小さい面積を有する、請求項1に記載の液晶表示装置。
- 前記第1画素電極は、前記第2画素電極より高い電圧が印加される、請求項1に記載の液晶表示装置。
- 前記第2基板上に形成されている共通電極をさらに含み、
前記第1画素電極と前記共通電極との間の電圧差と、前記第2画素電極と前記共通電極との間の電圧差と、の比率は、約0.50-0.95の範囲にある、請求項3に記載の液晶表示装置。 - 前記第1画素電極と前記第2画素電極とは互いに容量性結合している、請求項1に記載の液晶表示装置。
- 前記第1画素電極及び前記第2画素電極と離隔されている第3画素電極をさらに含む、請求項1に記載の液晶表示装置。
- 前記第1画素電極、前記第2画素電極及び前記第3画素電極の各面積は互いに異なる、請求項6に記載の液晶表示装置。
- 前記第3画素電極は、前記前記第2画素電極と容量性結合している、請求項6に記載の液晶表示装置。
- 前記第1画素電極、前記第2画素電極及び前記第3画素電極の各面積の比率は、約1.37:1:0.44である、請求項6に記載の液晶表示装置。
- 前記第2画素電極の面積は、前記第1画素電極の面積の約1〜5倍である、請求項2に記載の液晶表示装置。
- 前記第1画素電極又は前記第2画素電極は、前記傾斜方向定義部材を有する、請求項1に記載の液晶表示装置。
- 前記傾斜方向定義部材は切開部である、請求項11に記載の液晶表示装置。
- 前記第1薄膜トランジスタに接続されている維持電極線をさらに含む、請求項1に記載の液晶表示装置。
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KR2003-037090 | 2003-06-10 | ||
KR1020030037090A KR20040105934A (ko) | 2003-06-10 | 2003-06-10 | 다중 도메인 액정 표시 장치 및 그에 사용되는 표시판 |
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JP2004172440A Division JP4657633B2 (ja) | 2003-06-10 | 2004-06-10 | 多重ドメイン液晶表示装置及びそれに用いられる表示板 |
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JP2011028295A true JP2011028295A (ja) | 2011-02-10 |
JP5232952B2 JP5232952B2 (ja) | 2013-07-10 |
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JP2010227439A Expired - Lifetime JP5232952B2 (ja) | 2003-06-10 | 2010-10-07 | 液晶表示装置 |
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US (5) | US7158201B2 (ja) |
JP (2) | JP4657633B2 (ja) |
KR (1) | KR20040105934A (ja) |
CN (1) | CN100543561C (ja) |
TW (1) | TWI272724B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104637958A (zh) * | 2015-03-11 | 2015-05-20 | 京东方科技集团股份有限公司 | 阵列基板及显示装置 |
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US7190008B2 (en) * | 2002-04-24 | 2007-03-13 | E Ink Corporation | Electro-optic displays, and components for use therein |
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US7256849B2 (en) * | 2003-06-11 | 2007-08-14 | Samsung Electronics Co., Ltd. | Liquid crystal display |
US7206048B2 (en) * | 2003-08-13 | 2007-04-17 | Samsung Electronics Co., Ltd. | Liquid crystal display and panel therefor |
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TWI379113B (en) * | 2004-07-07 | 2012-12-11 | Samsung Display Co Ltd | Array substrate, manufacturing method thereof and display device having the same |
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JP4606103B2 (ja) * | 2004-09-22 | 2011-01-05 | 株式会社 日立ディスプレイズ | 液晶表示装置 |
TWI338796B (en) * | 2004-10-29 | 2011-03-11 | Chimei Innolux Corp | Multi-domain vertically alignmentliquid crystal display panel |
JP4571845B2 (ja) * | 2004-11-08 | 2010-10-27 | シャープ株式会社 | 液晶表示装置用基板及びそれを備えた液晶表示装置及びその駆動方法 |
JP4571855B2 (ja) * | 2004-12-28 | 2010-10-27 | シャープ株式会社 | 液晶表示装置用基板及びそれを備えた液晶表示装置及びその駆動方法 |
US7573537B2 (en) | 2005-01-17 | 2009-08-11 | Samsung Electronics Co., Ltd. | Array substrate, liquid crystal display panel having the same and liquid crystal display device having the same |
KR101232618B1 (ko) * | 2005-01-17 | 2013-02-13 | 삼성디스플레이 주식회사 | 어레이 기판, 이를 갖는 액정표시패널 및 액정표시장치 |
JP4516432B2 (ja) * | 2005-01-19 | 2010-08-04 | シャープ株式会社 | 液晶表示装置 |
JP4628801B2 (ja) * | 2005-01-19 | 2011-02-09 | シャープ株式会社 | 液晶表示装置 |
JP4628802B2 (ja) * | 2005-01-20 | 2011-02-09 | シャープ株式会社 | 液晶表示装置 |
KR101133761B1 (ko) * | 2005-01-26 | 2012-04-09 | 삼성전자주식회사 | 액정 표시 장치 |
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JP2000029059A (ja) * | 1998-05-30 | 2000-01-28 | Lg Electron Inc | マルチドメイン液晶表示素子(Multi―domainLiquidCrystalDisplayDevice) |
JP2003043514A (ja) * | 2001-06-28 | 2003-02-13 | Samsung Electronics Co Ltd | 多重ドメイン液晶表示装置 |
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JP2003121866A (ja) * | 2001-10-12 | 2003-04-23 | Samsung Electronics Co Ltd | 広視野角液晶表示装置及びその基板 |
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JP2004038165A (ja) * | 2002-06-28 | 2004-02-05 | Samsung Electronics Co Ltd | 液晶表示装置及びそれに用いられる薄膜トランジスタ基板 |
JP2004213011A (ja) * | 2003-01-03 | 2004-07-29 | Samsung Electronics Co Ltd | 多重ドメイン液晶表示装置用薄膜トランジスタ表示板 |
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CN104637958A (zh) * | 2015-03-11 | 2015-05-20 | 京东方科技集团股份有限公司 | 阵列基板及显示装置 |
Also Published As
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JP5232952B2 (ja) | 2013-07-10 |
US20120154702A1 (en) | 2012-06-21 |
TWI272724B (en) | 2007-02-01 |
TW200529440A (en) | 2005-09-01 |
US20090195725A1 (en) | 2009-08-06 |
CN1573486A (zh) | 2005-02-02 |
US7495735B2 (en) | 2009-02-24 |
US7158201B2 (en) | 2007-01-02 |
US20110063560A1 (en) | 2011-03-17 |
CN100543561C (zh) | 2009-09-23 |
US7852442B2 (en) | 2010-12-14 |
JP2005004212A (ja) | 2005-01-06 |
KR20040105934A (ko) | 2004-12-17 |
US20070097307A1 (en) | 2007-05-03 |
US8125599B2 (en) | 2012-02-28 |
US20050030460A1 (en) | 2005-02-10 |
JP4657633B2 (ja) | 2011-03-23 |
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