JP5351118B2 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
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- JP5351118B2 JP5351118B2 JP2010225632A JP2010225632A JP5351118B2 JP 5351118 B2 JP5351118 B2 JP 5351118B2 JP 2010225632 A JP2010225632 A JP 2010225632A JP 2010225632 A JP2010225632 A JP 2010225632A JP 5351118 B2 JP5351118 B2 JP 5351118B2
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 51
- 239000003990 capacitor Substances 0.000 claims description 71
- 239000000758 substrate Substances 0.000 claims description 39
- 238000002161 passivation Methods 0.000 claims description 30
- 239000004065 semiconductor Substances 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 89
- 239000010410 layer Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 11
- 229910021417 amorphous silicon Inorganic materials 0.000 description 7
- 238000000059 patterning Methods 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910001149 41xx steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 230000000694 effects Effects 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
- 239000011229 interlayer Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010409 thin film 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
- G02F1/134363—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
- 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
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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
- G02F1/133345—Insulating 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
- G02F1/136213—Storage capacitors associated with the pixel electrode
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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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- 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
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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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
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
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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
- G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
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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
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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
- G02F1/13629—Multilayer wirings
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
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Description
Claims (9)
- TFT基板と対向基板と前記TFT基板と前記対向基板との間に液晶が挟持された液晶表示装置であって、
前記TFT基板において、走査線が第1の方向に延在して第2の方向に配列し、映像信号線が第2の方向に延在して第1の方向に配列し、前記走査線と前記映像信号線との間に画素が形成され、
前記TFT基板の上に画素電極が形成され、前記画素電極の上にゲート絶縁膜が形成され、前記ゲート絶縁膜の上に無機パッシベーション膜が形成され、前記無機パッシベーション膜の上にスリットを有するコモン電極が形成され、前記画素電極に映像信号が供給されることによって液晶が駆動され、
金属または合金で形成された容量電極が前記ゲート絶縁膜の上で、かつ、前記無機パッシベーション膜の下に、前記画素電極と対向して形成され、
前記画素電極はTFTと接続し、前記容量電極は前記コモン電極と接続し、前記容量電極と前記画素電極とで付加容量を形成しており、
前記TFTは、ゲート電極が前記画素電極と同層で形成され、前記ゲート電極の上に前記ゲート絶縁膜が形成され、前記ゲート絶縁膜の上に半導体層が形成され、前記半導体層の上にドレイン電極とソース電極が形成された構成であり、
前記コモン電極は、前記スリット部分を残して全面に形成されており、
前記容量電極は前記ドレイン電極および前記ソース電極と同層で形成されていることを特徴とする液晶表示装置。 - 前記画素は前記第2の方向にインライン状に配列していることを特徴とする請求項1に記載の液晶表示装置。
- 前記画素はデルタ配置をしていることを特徴とする請求項1に記載の液晶表示装置。
- 前記TFTにおけるゲート絶縁膜は前記付加容量におけるゲート絶縁膜よりも膜厚が大きいことを特徴とする請求項1に記載の液晶表示装置。
- TFT基板と対向基板と前記TFT基板と前記対向基板との間に液晶が挟持された液晶表示装置であって、
前記TFT基板において、第1の走査線と第2の走査線からなる走査線ペアが第1の方向に延在して第2の方向に配列し、映像信号線が第2の方向に延在して第1の方向に配列し、前記走査線ペアと前記映像信号線との間に第1の画素と第2の画素が前記第1の方向に並んで形成され、
前記第1の走査線によって前記第1の画素が駆動され、前記第2の走査線によって前記第2の画素が駆動され、
前記第1の画素に対応して第1のTFTが形成され、前記第2の画素に対応して第2のTFTが形成され、
前記第1の画素および第2の画素において、前記TFT基板の上に各々第1の画素電極と第2の画素電極が形成され、前記画素電極の上にゲート絶縁膜が形成され、前記ゲート絶縁膜の上に無機パッシベーション膜が形成され、前記無機パッシベーション膜の上にスリットを有するコモン電極が形成され、前記画素電極に映像信号が供給されることによって液晶が駆動され、
金属または合金で形成された第1の容量電極が前記ゲート絶縁膜の上で、かつ、前記無機パッシベーション膜の下に、前記第1の画素電極と対向して形成され、
金属または合金で形成された第2の容量電極が前記ゲート絶縁膜の上で、かつ、前記無機パッシベーション膜の下に、前記第2の画素電極と対向して形成され、
前記第1の容量電極は前記コモン電極と接続し、前記第1の容量電極と前記第1の画素電極で第1の付加容量を形成し、
前記第2の容量電極は前記コモン電極と接続し、前記第2の容量電極と前記第2の画素電極で第2の付加容量を形成しており、
前記第1のTFTおよび前記第2のTFTは、ゲート電極が前記画素電極と同層で形成され、前記ゲート電極の上に前記ゲート絶縁膜が形成され、前記ゲート絶縁膜の上に半導体層が形成され、前記半導体層の上にドレイン電極とソース電極が形成された構成であり、
前記コモン電極は、前記スリット部分を残して全面に形成されており、
前記第1の容量電極および前記第2の容量電極は前記ドレイン電極および前記ソース電極と同層で形成されていることを特徴とする液晶表示装置。 - 前記第1の画素および前記第2の画素は前記第2の方向にインライン状に配列していることを特徴とする請求項5に記載の液晶表示装置。
- 前記第1の画素および前記第2の画素はデルタ配置をしていることを特徴とする請求項5に記載の液晶表示装置。
- 前記第1の容量電極と前記第2の容量電極は連続していることを特徴とする請求項5に記載の液晶表示装置。
- 前記第1のTFTおよび前記第2のTFTにおけるゲート絶縁膜は前記第1の付加容量および前記第2の付加容量におけるゲート絶縁膜よりも膜厚が大きいことを特徴とする請求項5に記載の液晶表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2010225632A JP5351118B2 (ja) | 2010-10-05 | 2010-10-05 | 液晶表示装置 |
US13/251,384 US8908114B2 (en) | 2010-10-05 | 2011-10-03 | Liquid crystal display device |
US14/533,591 US9329444B2 (en) | 2010-10-05 | 2014-11-05 | Liquid crystal display device |
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JP2010225632A JP5351118B2 (ja) | 2010-10-05 | 2010-10-05 | 液晶表示装置 |
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JP2013171909A Division JP5635166B2 (ja) | 2013-08-22 | 2013-08-22 | 液晶表示装置 |
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JP5351118B2 true JP5351118B2 (ja) | 2013-11-27 |
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Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013092613A (ja) * | 2011-10-25 | 2013-05-16 | Japan Display East Co Ltd | 液晶表示装置及びその製造方法 |
JP5917127B2 (ja) * | 2011-12-19 | 2016-05-11 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
JP2014048339A (ja) | 2012-08-29 | 2014-03-17 | Japan Display Inc | 液晶表示装置 |
KR102040812B1 (ko) | 2013-02-12 | 2019-11-06 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
US10416504B2 (en) * | 2013-05-21 | 2019-09-17 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device |
KR102118332B1 (ko) | 2013-08-12 | 2020-06-04 | 삼성디스플레이 주식회사 | 표시 기판 및 표시 기판의 제조 방법 |
TWI708981B (zh) * | 2013-08-28 | 2020-11-01 | 日商半導體能源研究所股份有限公司 | 顯示裝置 |
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