JP2013190703A - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- JP2013190703A JP2013190703A JP2012058037A JP2012058037A JP2013190703A JP 2013190703 A JP2013190703 A JP 2013190703A JP 2012058037 A JP2012058037 A JP 2012058037A JP 2012058037 A JP2012058037 A JP 2012058037A JP 2013190703 A JP2013190703 A JP 2013190703A
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- Japan
- Prior art keywords
- electrode
- pixel electrode
- pixel
- liquid crystal
- common electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 93
- 239000010410 layer Substances 0.000 claims abstract description 75
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 230000005684 electric field Effects 0.000 claims abstract description 53
- 239000003990 capacitor Substances 0.000 claims description 56
- 239000010408 film Substances 0.000 claims description 27
- 239000010409 thin film Substances 0.000 claims description 24
- 239000011159 matrix material Substances 0.000 claims description 21
- 239000011229 interlayer Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 17
- 230000001681 protective effect Effects 0.000 description 8
- 229910004205 SiNX Inorganic materials 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
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- 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
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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
- G02F1/1333—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
Abstract
【解決手段】ソース電極に接続されたソース画素電極が前記データ線に沿って延在されており、隣接走査線上には、前記データ線と同一の層で形成された蓄積容量電極が前記隣接走査線と重なるように形成されており、前記ソース画素電極は、前記蓄積容量電極と画素に1辺に沿って、接続するように配置されており、前記ソース画素電極上には層間膜が形成されており、前記層間膜上には、透明導電膜で形成された画素電極および共通電極が形成されており、前記画素電極は、前記ソース画素電極にスルーホールを介して接続されており、走査線の延在方向に延在する櫛歯電極を構成することにより、高い開口率を得る。
【選択図】図1
Description
このように、走査線2およびこの延在方向に延在する櫛歯電極を構成する共通電極5が液晶の配向方向に関して対称に屈曲していることにより、画素電極41と共通電極5との間に、画素の図で右半分では、垂直方向(データ線の延在方向)から、時計回りにθ回転した方向のフリンジ電界が印加され、画素の図で左半分では、垂直方向から反時計回りのθ回転した方向の電界が印加されることとなる。
2 走査線
3 画素電極の第1の部分(画素電極の第1部)
4,46 画素電極の第2の部分(画素電極の第2部)
5 共通電極の第1の部分(共通電極の第1部)
6 共通電極の第2の部分(共通電極の第2部)
7 共通電極の第3の部分(共通電極の第3部)
8 蓄積容量電極
9 ソース画素電極
10 薄膜半導体層
11 入射側偏光板
12 第1の透明絶縁性基板
13 ゲート絶縁膜
14 保護絶縁膜
15、16 配向膜
17 液晶
18 オーバーコート膜
19 緑(G)の色層
20 赤(R)の色層
21 青(B)の色層
22 第2の透明絶縁性基板
23 ITO膜
24 出射側偏光板
25 画素電極を接続するスルーホール
32 液晶の初期配向方向
34 ブラックマトリクス
35 柱状スペーサ
36 色重ね遮光部
41 平面状の画素電極
42 画素電極
43 平面状の共通電極
44 平面状の共通電極に形成した画素電極を接続するスルーホール
45 第2の保護絶縁膜
Claims (6)
- 画素電極と共通電極との間に印加する基板に略平行な横電界によって、水平配向の液晶を回転させることにより表示を行う横電界方式の液晶表示装置において、
平行配置された複数のデータ線と、前記データ線と略垂直をなして互いに平行配置された複数の走査線とを有し、各データ線および各走査線によって囲まれるマトリクス状に配列されたそれぞれのサブ画素に対応し前記データ線と前記走査線との交差部近傍に薄膜トランジスタを備える基板と、
前記サブ画素領域内で前記データ線に沿って延在し、前記薄膜トランジスタのソース電極と接続された電位供給ラインと、
前記電位供給ラインと連なり前記走査線上に絶縁層を介して配置され前記走査線との間で容量を形成する蓄積容量電極と、を備え、
前記画素電極は画素電極第1部と画素電極第2部を有し、
前記画素電極第1部は前記サブ画素領域内で前記電位供給ラインの上側の層に配置されて前記走査線と略平行をなして線状に形成され、
前記画素電極第2部は前記画素電極第1部と連なり前記データ線と平行に形成されて前記電位供給ラインに接続され、
前記共通電極は共通電極第1部と共通電極第2部を有し、
前記共通電極第1部は前記画素電極第1部と対向しながら配列してそれぞれが前記画素電極第1部と等しい距離だけ離間して前記基板と略平行な電界を形成し、
前記共通電極第2部は前記共通電極第1部と連なり前記蓄積容量電極の上側に絶縁層を介して設けられる、ことを特徴とする液晶表示装置。 - 画素電極と共通電極との間に印加する基板に略平行な横電界によって、水平配向の液晶を回転させることにより表示を行う横電界方式の液晶表示装置において、
平行配置された複数のデータ線と、前記データ線と略垂直をなして互いに平行配置された複数の走査線とを有し、各データ線および各走査線によって囲まれるマトリクス状に配列されたそれぞれのサブ画素に対応し前記データ線と前記走査線との交差部近傍に薄膜トランジスタを備える基板と、
前記サブ画素領域内で前記データ線に沿って延在し、前記薄膜トランジスタのソース電極と接続された電位供給ラインと、
前記電位供給ラインと連なり前記走査線上に絶縁層を介して配置され前記走査線との間で容量を形成する蓄積容量電極と、を備え
前記画素電極は前記サブ画素領域内で、前記電位供給ラインの上側で面状に拡がり前記電位供給ラインに接続され、
前記共通電極は共通電極第1部と共通電極第2部とを有し、
前記共通電極第1部は前記画素電極の上側に絶縁層を介して前記画素電極と向かい合って配列して、前記画素電極との間に前記基板と略平行な電界を形成し、
前記共通電極第2部は前記共通電極第1部と連なり前記蓄積容量電極の上側に絶縁膜を介して設けられたことを特徴とする液晶表示装置。 - 画素電極と共通電極との間に印加する基板に略平行な横電界によって、水平配向の液晶を回転させることにより表示を行う横電界方式の液晶表示装置において、
平行配置された複数のデータ線と、前記データ線と略垂直をなして互いに平行配置された複数の走査線とを有し、各データ線および各走査線によって囲まれるマトリクス状に配列されたそれぞれのサブ画素に対応し前記データ線と前記走査線との交差部近傍に薄膜トランジスタを備える基板と、
前記サブ画素領域内で前記データ線に沿って延在し、前記薄膜トランジスタのソース電極と接続された電位供給ラインと、
前記電位供給ラインと連なり前記走査線上に絶縁層を介して配置され前記走査線との間で容量を形成する蓄積容量電極と、を備え、
前記共通電極は前記サブ画素領域内で、前記電位供給ラインの上側で面状に拡がり前記電位供給ラインに接続され、
前記画素電極は画素電極第1部と画素電極第2部を有し、
前記画素電極第1部は前記共通電極の上側に絶縁層を介して前記共通電極と向かい合って配列し、前記共通電極との間に前記基板と略平行な電界を形成し、
前記画素電極第2部はこの前記画素電極第1部と連なり前記電位供給ラインの上側に絶縁層を介して設けられる、液晶表示装置。 - 前記電位供給ラインと前記蓄積容量電極とが前記データ線と前記走査線との交差部近傍で連なる略L字形状に形成したことを特徴とする請求項1乃至3のいずれか1項に記載の液晶表示装置。
- 前記蓄積容量電極が前記走査線を覆い、前記共通電極第2部が前記蓄積容量電極を覆うように形成したことを特徴とする請求項1乃至2のいずれか1項に記載の液晶表示装置。
- 複数の前記データ線の間隔を、複数の前記走査線の間隔に比べて大きく配置したことを特徴とする請求項1乃至5のいずれか1項に記載の液晶表示装置。
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CN104503167A (zh) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | 液晶显示器 |
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KR102542186B1 (ko) * | 2016-04-04 | 2023-06-13 | 삼성디스플레이 주식회사 | 표시 장치 |
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CN108761929B (zh) * | 2018-05-18 | 2020-05-19 | 京东方科技集团股份有限公司 | 一种显示基板、显示装置、制作方法及其修复方法 |
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CN109597256A (zh) * | 2018-12-29 | 2019-04-09 | 深圳市华星光电半导体显示技术有限公司 | 阵列基板及其制备方法 |
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US11054704B2 (en) * | 2019-10-28 | 2021-07-06 | Shanghai Tianma Micro-electronics Co., Ltd. | Light source device for display device and liquid crystal display device |
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