JP4707980B2 - 薄膜トランジスタ表示板 - Google Patents
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- 239000010409 thin film Substances 0.000 title claims description 46
- 230000008878 coupling Effects 0.000 claims description 66
- 238000010168 coupling process Methods 0.000 claims description 66
- 238000005859 coupling reaction Methods 0.000 claims description 66
- 239000000758 substrate Substances 0.000 claims description 23
- 230000007423 decrease Effects 0.000 claims description 8
- 239000010408 film Substances 0.000 description 53
- 239000004973 liquid crystal related substance Substances 0.000 description 42
- 229910052751 metal Inorganic materials 0.000 description 21
- 239000002184 metal Substances 0.000 description 21
- 239000004065 semiconductor Substances 0.000 description 13
- 239000011651 chromium Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000001681 protective effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 8
- 229910052804 chromium Inorganic materials 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910001182 Mo alloy Inorganic materials 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- UBSJOWMHLJZVDJ-UHFFFAOYSA-N aluminum neodymium Chemical compound [Al].[Nd] UBSJOWMHLJZVDJ-UHFFFAOYSA-N 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 229910004205 SiNX Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000010287 polarization Effects 0.000 description 1
- 239000012780 transparent material Substances 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
- 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
- G02F1/133—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
-
- 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
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
-
- 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
- G02F1/136213—Storage capacitors associated with the pixel electrode
-
- 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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- 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)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Thin Film Transistor (AREA)
Description
ゲート線121及び維持電極線131は、物理的な性質が異なる二つの膜、即ち、下部膜(図示せず)とその上の上部膜(図示せず)とを含むことができる。上部膜は、ゲート線121と維持電極線131の信号遅延や電圧降下を減らせるように、低い比抵抗の金属、例えば、アルミニウム(Al)やアルミニウム合金などアルミニウム系列の金属からなる。これとは異なって、下部膜は、他の物質、特にITO及びIZOとの接触特性の優れた物質、例えば、モリブデン(Mo)、モリブデン合金、クロム(Cr)などからなる。下部膜と上部膜の組み合わせの例としては、クロム/アルミニウム-ネオジム(Nd)合金が挙げられる。
各データ線171は、主に縦方向にのびており、各ドレイン電極175に向けて複数の分枝をだして、薄膜トランジスタのソース電極173を形成する。各データ線171は、他の層もしくは外部装置との接続のために幅が拡張されている拡張部179を含む。橋下金属片172はゲート線121上に位置する。
第1画素電極190aと第2画素電極190bは、各々ゲート線121とデータ線171が交差して画定する画素領域を上下に二分する線(ゲート線と並ぶ線)に対し、実質的に鏡状対称をなしている。
Va=Vb×[Ccp/(Ccp+Clcb)]
であり、Ccp/(Ccp+Clcb)は常に1より小さいので、VbはVaに比して常に小さい。
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 ドレイン電極
190 画素電極
191、192、193 切開部
151、154 非晶質シリコン層からなる線状半導体及び突出部
270 基準電極
271、272、273 切開部
Claims (10)
- 絶縁基板と、
前記絶縁基板上に形成されている第1信号線と、
前記第1信号線と絶縁されて交差している第2信号線と、
前記第1信号線と前記第2信号線が交差して画定する画素ごとに形成されている第1画素電極と、
前記第1信号線、前記第2信号線及び第1画素電極に3端子が各々接続されている薄膜トランジスタと、
前記画素ごとに形成され、前記第1画素電極に容量性で結合されている第2画素電極と、
前記第1画素電極と接続され、前記第2画素電極と絶縁状態で重畳して、前記第1画素電極と前記第2画素電極とを容量性結合する接合電極とを有し、
前記画素は、赤色画素、緑色画素及び青色画素を含み、前記第1画素電極と前記第2画素電極の結合容量は、前記赤色画素、緑色画素及び青色画素で互いに異なり、前記接合電極の面積は緑色画素、赤色画素、青色画素で互いに異なり、
前記結合電極の前記第2画素電極と重畳している部分の長さは、緑色画素、赤色画素、青色画素の順に減少することことを特徴とする薄膜トランジスタ表示板。 - 前記第1画素電極と前記第2画素電極のうちの少なくとも一つは、ドメイン分割手段を有することを特徴とする請求項1に記載の薄膜トランジスタ表示板。
- 前記結合電極は、前記薄膜トランジスタのドレイン電極からのびていることを特徴とする請求項1に記載の薄膜トランジスタ表示板。
- 前記第1画素電極と前記第2画素電極の結合容量は、緑色画素で1とすると、赤色画素で0.95〜1.0、青色画素で0.75〜0.95であることを特徴とする請求項1に記載の薄膜トランジスタ表示板。
- 絶縁基板と、
前記絶縁基板上に形成されている第1信号線と、
前記第1信号線と絶縁されて交差している第2信号線と、
前記第1信号線と前記第2信号線が交差して画定する画素ごとに形成されている第1画素電極と、
前記第1信号線、前記第2信号線及び第1画素電極に3端子が各々接続されている薄膜トランジスタと、
前記画素ごとに形成され、前記第1画素電極に容量性で結合されている第2画素電極と、
前記第1画素電極と接続され、前記第2画素電極と絶縁状態で重畳して、前記第1画素電極と前記第2画素電極とを容量性結合する接合電極とを有し、
前記画素は、赤色画素、緑色画素及び青色画素を含み、前記第1画素電極と前記第2画素電極の結合容量は、前記赤色画素、緑色画素及び青色画素で互いに異なり、前記接合電極の面積は緑色画素、赤色画素、青色画素で互いに異なり、
前記結合電極の前記第2画素電極と重畳している部分の幅は、緑色画素、赤色画素、青色画素の順に減少することを特徴とする薄膜トランジスタ表示板。 - 前記第1画素電極と前記第2画素電極の結合容量は、緑色画素で1とすると、赤色画素で0.95〜1.0、青色画素で0.75〜0.95であることを特徴とする請求項5に記載の薄膜トランジスタ表示板。
- 絶縁基板と、
前記絶縁基板上に形成されている第1信号線と、
前記第1信号線と絶縁されて交差している第2信号線と、
前記第1信号線と前記第2信号線が交差して画定する画素ごとに形成されている第1画素電極と、
前記第1信号線、前記第2信号線及び第1画素電極に3端子が各々接続されている薄膜トランジスタと、
前記画素ごとに形成され、前記第1画素電極に容量性で結合されている第2画素電極と、
前記第1画素電極と接続され、前記第2画素電極と絶縁状態で重畳して、前記第1画素電極と前記第2画素電極とを容量性結合する接合電極とを有し、
前記画素は、赤色画素、緑色画素及び青色画素を含み、前記第1画素電極と前記第2画素電極の面積比率は、前記赤色画素、緑色画素及び青色画素で互いに異なり、緑色画素、赤色画素、青色画素の順に増加し、
前記結合電極の前記第2画素電極と重畳している部分の面積は緑色画素、赤色画素、青色画素で同一であることを特徴とする薄膜トランジスタ表示板。 - 前記結合電極は、前記薄膜トランジスタのドレイン電極からのびていることを特徴とする請求項7に記載の薄膜トランジスタ表示板。
- 前記第1画素電極と前記第2画素電極のうちの少なくとも一つは、ドメイン分割手段を有することを特徴とする請求項7に記載の薄膜トランジスタ表示板。
- 前記第1画素と前記第2画素の面積比率は、緑色画素で6:4、赤色画素で5.5:4.4、青色画素で5:5であることを特徴とする請求項7に記載の薄膜トランジスタ表示板。
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KR1020030053737A KR100980016B1 (ko) | 2003-08-04 | 2003-08-04 | 박막 트랜지스터 표시판 |
KR2003-053737 | 2003-08-04 |
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JP2005055896A JP2005055896A (ja) | 2005-03-03 |
JP4707980B2 true JP4707980B2 (ja) | 2011-06-22 |
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US (2) | US7113233B2 (ja) |
JP (1) | JP4707980B2 (ja) |
KR (1) | KR100980016B1 (ja) |
CN (1) | CN100430805C (ja) |
TW (1) | TWI354375B (ja) |
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KR20040105934A (ko) * | 2003-06-10 | 2004-12-17 | 삼성전자주식회사 | 다중 도메인 액정 표시 장치 및 그에 사용되는 표시판 |
KR20050098631A (ko) * | 2004-04-08 | 2005-10-12 | 삼성전자주식회사 | 액정 표시 장치 및 그에 사용되는 표시판 |
TW200620675A (en) * | 2004-08-04 | 2006-06-16 | Samsung Electronics Co Ltd | Thin film transistor array panel and liquid crystal display |
KR101188600B1 (ko) * | 2005-02-18 | 2012-10-08 | 삼성디스플레이 주식회사 | 박막 트랜지스터 표시판 및 이를 포함하는 액정 표시 장치 |
KR101160825B1 (ko) * | 2004-08-18 | 2012-06-29 | 삼성전자주식회사 | 액정 표시 장치 |
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US20050030439A1 (en) | 2005-02-10 |
TWI354375B (en) | 2011-12-11 |
CN1580922A (zh) | 2005-02-16 |
CN100430805C (zh) | 2008-11-05 |
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US20060274219A1 (en) | 2006-12-07 |
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