JP5583940B2 - 液晶表示装置、液晶表示装置の製造方法 - Google Patents
液晶表示装置、液晶表示装置の製造方法 Download PDFInfo
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- JP5583940B2 JP5583940B2 JP2009216853A JP2009216853A JP5583940B2 JP 5583940 B2 JP5583940 B2 JP 5583940B2 JP 2009216853 A JP2009216853 A JP 2009216853A JP 2009216853 A JP2009216853 A JP 2009216853A JP 5583940 B2 JP5583940 B2 JP 5583940B2
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133773—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers the alignment material or treatment being different for the two opposite substrates
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
-
- 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
- G02F1/1395—Optically compensated birefringence [OCB]- cells or PI- cells
-
- 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
- G02F1/1396—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 liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Description
(2)上記(1)の液晶表示装置において、前記液晶性ポリマー膜の光学軸は、前記液晶層と前記液晶性ポリマー膜との界面近傍に位置する当該液晶層の液晶分子の配向方向とほぼ平行であることが好ましい。
上記の液晶表示装置では、下側の配向膜による作用を受けて一様に配向した液晶性ポリマー層により、この液晶性ポリマー層と接して設けられる液晶層の液晶分子に対して比較的に高いプレティルト角を与えることができる。配向膜、液晶性ポリマー層ともに比較的簡素な装置・プロセスによって容易に製造可能であり、かつその際の材料や形成条件を変更することによってプレティルト角を比較的広範囲に制御することが可能であることが本願発明者により確認されている。
ITO(インジウム錫酸化物)膜からなる透明電極が形成された一対のガラス基板を用意した。ITO膜の厚さは1500Å(オングストローム)、ガラス基板の板厚は0.7mm、ガラス材質は無アルカリガラスである。これらのガラス基板を洗浄し、次いで一般的なフォトリソグラフィ工程によってITO膜を所定形状にパターニングした。ここでは、ITO膜のエッチング方法としてウェットエッチング(第二塩化鉄)を用いた。
ITO(インジウム錫酸化物)膜からなる透明電極が形成された一対のガラス基板を用意した。ITO膜の厚さは1500Å(オングストローム)、ガラス基板の板厚は0.7mm、ガラス材質は無アルカリガラスである。これらのガラス基板を洗浄し、次いで一般的なフォトリソグラフィ工程によってITO膜を所定形状にパターニングした。ここでは、ITO膜のエッチング方法としてウェットエッチング(第二塩化鉄)を用いた。
スピンコート時の回転数:1000rpm(膜厚9500Å)
光照射時:窒素雰囲気
→プレティルト角37.7°(35.5°〜40.7°)
スピンコート時の回転数:1000rpm(膜厚9500Å)
光照射時:空気雰囲気
→プレティルト角40.4°(37.5°〜43.4°)
スピンコート時の回転数:2000rpm(膜厚7500Å)
光照射時:空気雰囲気
→プレティルト角31.7°(29.4°〜34.2°)
スピンコート時の回転数:3000rpm(膜厚5000Å)
光照射時:窒素雰囲気
→プレティルト角22.8°(22.0°〜23.7°)
スピンコート時の回転数:3000rpm(膜厚5000Å)
光照射時:空気雰囲気
→プレティルト角26.8°(24.9°〜28.5°)
なお、本発明は上述した実施形態並びに各実施例の内容に限定されるものではなく、本発明の要旨の範囲内において種々に変形して実施をすることが可能である。例えば、上述した説明において適宜示した製造条件等の数値は一例であり、それらに限定されない。また、上述した液晶表示装置においては、第1基板、第2基板のそれぞれに対して配向膜と液晶性ポリマー膜を有する配向規制層が設けられていたが、一方の基板にのみ高プレティルト角が必要な表示モードを用いる液晶表示装置などにおいては、一方の基板についてのみ上述した配向規制層を設ければよい。また、上述した説明においては、配向規制層を構成する配向膜の一例として水平配向膜を示していたが、配向膜として垂直配向膜を用いてもよい。
Claims (2)
- 互いの一面を向かい合わせて配置された第1基板及び第2基板と、
前記第1基板の前記一面側に設けられた第1配向規制層と、
前記第2基板の前記一面側に設けられた第2配向規制層と、
前記第1基板と前記第2基板との相互間に設けられた液晶層と、
を含み、
前記第1配向規制層と前記第2配向規制層のいずれもが、
配向処理がなされた水平配向膜と、
前記水平配向膜上に設けられ、前記液晶層と接する液晶性ポリマー膜と、
を有するものであり、
前記液晶層は、内在する液晶分子の配向方向が前記液晶性ポリマー膜との界面近傍においては前記水平配向膜への配向処理の方向に沿った配向状態であり、層全体としては前記第1基板と前記第2基板の間で90°ねじれた配向状態であり、
前記液晶性ポリマー膜は、内在する液晶分子の配向方向が、前記水平配向膜との界面に近いほど当該界面に対して水平に近く、前記液晶層との界面に近づくほど当該界面に対して垂直に近い状態であり、前記液晶層のうち当該液晶性ポリマー膜とは接しない逆側に位置する部分に対して光学的な補償をもたらす、
液晶表示装置。 - 前記液晶性ポリマー膜の光学軸は、前記液晶層と前記液晶性ポリマー膜との界面近傍に位置する当該液晶層の液晶分子の配向方向とほぼ平行である、
請求項1に記載の液晶表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009216853A JP5583940B2 (ja) | 2009-09-18 | 2009-09-18 | 液晶表示装置、液晶表示装置の製造方法 |
CN201010288544.4A CN102023414B (zh) | 2009-09-18 | 2010-09-15 | 液晶显示装置、液晶显示装置的制造方法 |
TW099131191A TWI503600B (zh) | 2009-09-18 | 2010-09-15 | A liquid crystal display device, and a liquid crystal display device |
KR1020100092031A KR101698142B1 (ko) | 2009-09-18 | 2010-09-17 | 액정표시장치, 액정표시장치의 제조방법 |
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JP2009216853A JP5583940B2 (ja) | 2009-09-18 | 2009-09-18 | 液晶表示装置、液晶表示装置の製造方法 |
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JP2011065019A JP2011065019A (ja) | 2011-03-31 |
JP5583940B2 true JP5583940B2 (ja) | 2014-09-03 |
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JP2009216853A Expired - Fee Related JP5583940B2 (ja) | 2009-09-18 | 2009-09-18 | 液晶表示装置、液晶表示装置の製造方法 |
Country Status (4)
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JP (1) | JP5583940B2 (ja) |
KR (1) | KR101698142B1 (ja) |
CN (1) | CN102023414B (ja) |
TW (1) | TWI503600B (ja) |
Families Citing this family (1)
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KR20180046871A (ko) * | 2016-10-28 | 2018-05-09 | 주식회사 엘지화학 | 투과도 가변 필름 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63129323A (ja) * | 1986-11-20 | 1988-06-01 | Asahi Glass Co Ltd | 液晶表示素子 |
WO1996010770A1 (en) * | 1994-09-30 | 1996-04-11 | Rockwell International Corporation | Organic polymer o-plate compensator for improved gray scale performance in twisted nematic liquid crystal displays |
JP3403093B2 (ja) * | 1998-10-21 | 2003-05-06 | 三菱重工業株式会社 | 還元鉄の製造方法および製造設備 |
JP2000122066A (ja) * | 1998-10-21 | 2000-04-28 | Hitachi Ltd | 液晶表示装置 |
US6952252B2 (en) * | 2001-10-02 | 2005-10-04 | Fujitsu Display Technologies Corporation | Substrate for liquid crystal display and liquid crystal display utilizing the same |
JP2003172935A (ja) * | 2001-12-07 | 2003-06-20 | Seiko Epson Corp | 液晶装置、液晶装置の製造方法、及び電子機器 |
JP2004219948A (ja) * | 2003-01-17 | 2004-08-05 | Nippon Hoso Kyokai <Nhk> | 液晶光学素子およびその製造方法 |
JP4911281B2 (ja) * | 2006-01-31 | 2012-04-04 | 大日本印刷株式会社 | ハイブリッド配向した位相差制御層の形成方法 |
JP2009086296A (ja) * | 2007-09-28 | 2009-04-23 | Sharp Corp | 液晶表示パネルの製造方法 |
-
2009
- 2009-09-18 JP JP2009216853A patent/JP5583940B2/ja not_active Expired - Fee Related
-
2010
- 2010-09-15 TW TW099131191A patent/TWI503600B/zh not_active IP Right Cessation
- 2010-09-15 CN CN201010288544.4A patent/CN102023414B/zh not_active Expired - Fee Related
- 2010-09-17 KR KR1020100092031A patent/KR101698142B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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KR101698142B1 (ko) | 2017-01-19 |
TWI503600B (zh) | 2015-10-11 |
JP2011065019A (ja) | 2011-03-31 |
CN102023414A (zh) | 2011-04-20 |
KR20110031140A (ko) | 2011-03-24 |
CN102023414B (zh) | 2015-12-02 |
TW201115208A (en) | 2011-05-01 |
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