JP6607911B2 - 液晶表示装置 - Google Patents
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- JP6607911B2 JP6607911B2 JP2017244491A JP2017244491A JP6607911B2 JP 6607911 B2 JP6607911 B2 JP 6607911B2 JP 2017244491 A JP2017244491 A JP 2017244491A JP 2017244491 A JP2017244491 A JP 2017244491A JP 6607911 B2 JP6607911 B2 JP 6607911B2
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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
- G02F1/137—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
-
- 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
- G02F1/133738—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homogeneous alignment
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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
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common 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
- G02F1/1333—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
-
- 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
- G02F1/13706—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 the liquid crystal having positive dielectric anisotropy
-
- 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
- G02F1/13712—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 the liquid crystal having negative dielectric anisotropy
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Geometry (AREA)
- Mathematical Physics (AREA)
Description
なお、以下の説明において、同一部分又は同様な機能を有する部分には同一の符号を異なる図面間で共通して用い、その繰り返しの説明は省略する。
また、実施形態に記載された各構成は、本発明の要旨を逸脱しない範囲において適宜組み合わされてもよいし、変更されてもよい。
本実施形態では、FFSモードの液晶表示装置を例に挙げて説明を行う。図1は、実施形態1の液晶表示装置の電圧印加状態における図であり、(a)は、正の誘電率異方性を有する液晶分子を用いる場合の断面模式図であり(b)は、負の誘電率異方性を有する液晶分子を用いる場合の断面模式図である。図2は、実施形態1の液晶表示装置の画素回路を示す図である。図1(a)及び(b)は共に、図2中に示したL1−L2線に沿った断面を示している。なお、正の誘電率異方性を有する液晶分子をポジ型の液晶分子ともいい、負の誘電率異方性を有する液晶分子をネガ型の液晶分子ともいう。
Δε=(長軸方向の誘電率)−(短軸方向の誘電率)
参考例1及び比較例1の液晶表示装置は、対向電極に設けられた開口部の形状が異なること以外は、上述の実施形態1の液晶表示装置と同様の構成を有する。図5は、参考例1の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。図6は、比較例1の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。
参考例2−1〜2−3の液晶表示装置は、対向電極に設けられた開口部の形状が異なること以外は、上述の参考例1の液晶表示装置と同様の構成を有する。図7は、参考例2−1〜2−3の液晶表示装置に関する図であり、(a)は参考例2−1の対向電極の平面模式図であり、(b)参考例2−2の対向電極の平面模式図であり、(c)は参考例2−3の対向電極の平面模式図である。
図8は、実施例1の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。図9は、参考例3の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。図10は、比較例2−1の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。図11は、比較例2−2の液晶表示装置に関する図であり、(a)は対向電極の平面模式図であり、(b)は電圧印加状態の液晶分子の配向分布のシミュレーション結果を示した平面図である。実施例1、参考例3及び比較例2−1〜2−2において、液晶分子の初期配向方位は、表示単位の長手方向に沿うように配置した。
参考例4の液晶表示装置は、負の誘電率異方性を有する液晶分子に変更し、かつ、液晶分子の初期配向方位を表示単位の短手方向に平行となるよう設定したこと以外は、参考例1の液晶表示装置と同様の構成を有する。参考例4では、液晶分子の初期配向方位31bに対して傾斜した開口端部と、液晶分子の初期配向方位31bとのなす角度を65°に設定した。また、参考例4の液晶表示装置では、液晶層に含まれる液晶分子31Rの誘電率異方性(Δε)を−7(ネガ型)に設定した。
10:第1基板
11、21:絶縁基板
12:画素電極(第1電極)
13:絶縁膜
14、14R:対向電極(第2電極)
14a、14b:電極端
15、15a、15b、15R:開口部
15a1、15a2、15b1、15b2、156、156R:開口端部
20:第2基板
22:カラーフィルタ層
23:ブラックマトリクス層
24:オーバーコート層
30:液晶層
31、31R:液晶分子
31a、31b:液晶分子の初期配向方位
32:液晶ドメイン
41:データ線
42:走査線
43:TFT
151、151R:幅広部
152、152R:幅狭部
153、153ar、153br:開口単位
154、154R:主部
155、155R:突出部
A、B、C、D、E、F、G、H、X、XR:領域
V1、V2:頂点
Z:遮光領域
a1、ar:最大幅
c1、cr:最小幅
d1:距離
br:長さ
Claims (6)
- 第1基板と、
前記第1基板に対向する第2基板と、
前記第1基板及び前記第2基板の間に設けられ、液晶分子を含有する液晶層と、を備え、
前記第1基板は、第1電極と、前記第1電極よりも前記液晶層側に設けられた第2電極と、前記第1電極及び前記第2電極の間に設けられた絶縁膜と、を有し、
電圧無印加状態において、前記液晶分子は、前記第1基板に対して平行に配向し、
前記第2電極には、複数の開口部が並設され、
前記各開口部は、2つ以上の幅広部及び1つ以上の幅狭部を有する長手形状であり、
前記各開口部において、前記2つ以上の幅広部及び前記1つ以上の幅狭部は、当該開口部の長手方向において1つずつ交互に配置され、
前記複数の開口部のうちの隣り合う2つの開口部は、一方の開口部の幅広部及び幅狭部がそれぞれ他方の開口部の幅狭部及び幅広部と隣り合うように、配置されることを特徴とする液晶表示装置。 - 前記各開口部は、前記液晶分子の初期配向方位と平行な直線、又は、直交する直線に対して線対称であることを特徴とする請求項1に記載の液晶表示装置。
- 前記液晶分子は、正の誘電率異方性を有することを特徴とする請求項1又は2に記載の液晶表示装置。
- 前記各開口部の前記2つ以上の幅広部及び前記1つ以上の幅狭部は、前記液晶分子の初期配向方位において交互に配置されることを特徴とする請求項3に記載の液晶表示装置。
- 前記液晶分子は、負の誘電率異方性を有することを特徴とする請求項1又は2に記載の液晶表示装置。
- 前記各開口部の前記2つ以上の幅広部及び前記1つ以上の幅狭部は、前記液晶分子の初期配向方位と直交する方向において交互に配置される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)
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JP2017244491A JP6607911B2 (ja) | 2017-12-20 | 2017-12-20 | 液晶表示装置 |
US16/224,437 US20190187522A1 (en) | 2017-12-20 | 2018-12-18 | Liquid crystal display device |
CN201811559641.5A CN109946892A (zh) | 2017-12-20 | 2018-12-19 | 液晶显示装置 |
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JP2017244491A JP6607911B2 (ja) | 2017-12-20 | 2017-12-20 | 液晶表示装置 |
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JP2019113584A JP2019113584A (ja) | 2019-07-11 |
JP6607911B2 true JP6607911B2 (ja) | 2019-11-20 |
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US (1) | US20190187522A1 (ja) |
JP (1) | JP6607911B2 (ja) |
CN (1) | CN109946892A (ja) |
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CN110764315B (zh) * | 2019-10-28 | 2022-05-03 | Tcl华星光电技术有限公司 | 液晶配向力仿真方法、***、设备及存储介质 |
JP2022078538A (ja) * | 2020-11-13 | 2022-05-25 | シャープ株式会社 | 液晶表示装置 |
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KR100606410B1 (ko) * | 2003-12-11 | 2006-07-28 | 엘지.필립스 엘시디 주식회사 | 박막트랜지스터 어레이 기판 및 그 제조 방법 |
JP4884820B2 (ja) * | 2006-04-12 | 2012-02-29 | 株式会社 日立ディスプレイズ | 液晶表示装置 |
KR101307965B1 (ko) * | 2007-02-16 | 2013-09-12 | 엘지디스플레이 주식회사 | 횡전계 방식 액정표시장치용 어레이 기판과 그 제조방법 |
JP2009075421A (ja) * | 2007-09-21 | 2009-04-09 | Epson Imaging Devices Corp | 液晶装置、及び電子機器 |
JP5589408B2 (ja) * | 2010-01-28 | 2014-09-17 | 三菱電機株式会社 | 液晶表示装置 |
JP5937389B2 (ja) * | 2011-10-25 | 2016-06-22 | 株式会社ジャパンディスプレイ | 表示装置、電子機器、および、表示装置の製造方法 |
JP6014552B2 (ja) * | 2013-05-28 | 2016-10-25 | 株式会社ジャパンディスプレイ | 表示装置及び電子機器 |
TWI491967B (zh) * | 2013-06-20 | 2015-07-11 | Au Optronics Corp | 畫素結構及顯示面板 |
JP6143146B2 (ja) * | 2014-07-28 | 2017-06-07 | Dic株式会社 | 液晶表示素子 |
CN104375341A (zh) * | 2014-11-18 | 2015-02-25 | 深圳市华星光电技术有限公司 | 一种阵列基板及液晶显示面板 |
WO2016194270A1 (ja) * | 2015-05-29 | 2016-12-08 | パナソニック液晶ディスプレイ株式会社 | 液晶表示装置 |
CN108139639B (zh) * | 2015-09-25 | 2021-04-06 | 夏普株式会社 | 液晶显示装置 |
KR102423435B1 (ko) * | 2015-11-04 | 2022-07-21 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
KR102409705B1 (ko) * | 2016-02-12 | 2022-06-16 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 그 제조 방법 |
WO2017150262A1 (ja) * | 2016-02-29 | 2017-09-08 | シャープ株式会社 | 液晶表示装置 |
US10948787B2 (en) * | 2016-03-14 | 2021-03-16 | Sharp Kabushiki Kaisha | Liquid crystal display device having shaped openings |
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2017
- 2017-12-20 JP JP2017244491A patent/JP6607911B2/ja active Active
-
2018
- 2018-12-18 US US16/224,437 patent/US20190187522A1/en not_active Abandoned
- 2018-12-19 CN CN201811559641.5A patent/CN109946892A/zh active Pending
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CN109946892A (zh) | 2019-06-28 |
US20190187522A1 (en) | 2019-06-20 |
JP2019113584A (ja) | 2019-07-11 |
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