JP2005106967A - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
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- JP2005106967A JP2005106967A JP2003337684A JP2003337684A JP2005106967A JP 2005106967 A JP2005106967 A JP 2005106967A JP 2003337684 A JP2003337684 A JP 2003337684A JP 2003337684 A JP2003337684 A JP 2003337684A JP 2005106967 A JP2005106967 A JP 2005106967A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 177
- 230000005684 electric field Effects 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 68
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 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]
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Geometry (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】 櫛歯電極(21,22)で液晶層に横電界を印加するIPS(In Plane Switching)方式液晶表示装置において、櫛歯電極は光反射性でかつ間隙部(20)より突出した構造とし、櫛歯電極の断面を曲面状とする。
【効果】 櫛歯電極(21,22)の断面を曲面状とすることにより、櫛歯電極上の横電界成分が増大して櫛歯電極上の液晶を駆動することが可能になり、また、拡散反射光が増大し、IPS方式の広視野角の透過表示に加えて反射表示が可能になる。
【選択図】 図1
Description
S2=2ExEycosδ/(Ex2+Ey2)
S3=2ExEysinδ/(Ex2+Ey2)
2θPH1=225°+θLC………(1)
2θPH1=−45°+θLC………(2)
本実施例では(2)式を用い、θPH1=15°、θLC=75°とした。
このときの液晶分子50の配向状態を図23に示す。共通電極22と画素電極21の上部に電気力線が存在しないことを反映して、同部において液晶分子50はほとんど配向変化しておらず、電圧無印加時を示す図22とほぼ同様の配向状態である。反射表示部である共通電極22と画素電極21の上部は、電圧無印加時、電圧印加時とも常に暗表示のままであり、反射率にはほとんど変化が生じない。
Nz=(nx−nz)/(nx−ny) ………(3)
Claims (13)
- 第一の基板と第二の基板と液晶層と駆動手段から主に構成され、第一の基板と第二の基板は液晶層を挟持し、第二の基板は基板面に対して平行な成分が主になるようにして液晶層に電界を印加する電圧印加手段を備えており、電圧印加手段は同一基板上に分布して櫛歯状の形状を有する画素電極と共通電極から構成され、電界は主に画素電極と共通電極の間に形成される液晶表示装置であって、
画素電極と共通電極は光反射を示し、画素電極と共通電極は両電極の間の間隙部より突出しており、画素電極と共通電極の断面は傾斜面を有する液晶表示装置。 - 画素電極と共通電極の断面は対称構造である請求項1に記載の液晶表示装置。
- 画素電極と共通電極の断面は非対称構造である請求項1に記載の液晶表示装置。
- 画素電極と共通電極の傾斜面の法線は4方向以上の方向を向く請求項1に記載の液晶表示装置。
- 画素電極と共通電極の傾斜面の法線方向が連続的に変化する請求項1に記載の液晶表示装置。
- 画素電極と共通電極は基板平面内において屈曲構造を有する請求項4に記載の液晶表示装置。
- 画素電極と共通電極の幅が一画素内において変化する請求項4に記載の液晶表示装置。
- 少なくとも隣接する画素電極と共通電極の基板平面内における形状が互いに異なる請求項4に記載の液晶表示装置。
- 画素電極と共通電極が平面方向に分布する単数又は複数の微小な突起構造を有する請求項4に記載の液晶表示装置。
- 1画素内において平面方向に分布する複数の微小な突起構造の分布は不規則性を有する請求項9に記載の液晶表示装置。
- 画素電極と共通電極が厚さ方向に分布する複数の微小な凹凸構造を有する請求項1に記載の液晶表示装置。
- 1画素内において厚さ方向に分布する複数の微小な凹凸構造の分布は不規則性を有する請求項11に記載の液晶表示装置。
- 第一の基板上に第一の基板に近接する順に第一の位相板と第一の偏光板が積層され、第二の基板上に第二の基板に近接する順に第二の位相板と第三の位相板と第二の偏光板が積層され、第一の偏光板の透過軸と第二の偏光板の透過軸は直交し、第一の位相板の遅相軸と第三の位相板の遅相軸は直交し、第二の位相板の遅相軸と透過表示部における液晶層の配向方向は直交し、第一の位相板のリタデーションと第三の位相板のリタデーションは等しく、第二の位相板のリタデーションと透過表示部における液晶層のリタデーションは等しく、第二の位相板のNz係数は0であり、第一の位相板のNz係数と第三の位相板のNz係数の一方が1で他方が0であることを特徴とする液晶表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003337684A JP4082683B2 (ja) | 2003-09-29 | 2003-09-29 | 半透過型液晶表示装置 |
CNB2004100549227A CN100416386C (zh) | 2003-09-29 | 2004-07-21 | 液晶显示装置 |
US10/953,590 US7362400B2 (en) | 2003-09-29 | 2004-09-29 | Transreflective liquid crystal display panel having a wide viewing angle |
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JP2003337684A JP4082683B2 (ja) | 2003-09-29 | 2003-09-29 | 半透過型液晶表示装置 |
Publications (2)
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JP2005106967A true JP2005106967A (ja) | 2005-04-21 |
JP4082683B2 JP4082683B2 (ja) | 2008-04-30 |
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JP2003337684A Expired - Fee Related JP4082683B2 (ja) | 2003-09-29 | 2003-09-29 | 半透過型液晶表示装置 |
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US (1) | US7362400B2 (ja) |
JP (1) | JP4082683B2 (ja) |
CN (1) | CN100416386C (ja) |
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CN1603915A (zh) | 2005-04-06 |
CN100416386C (zh) | 2008-09-03 |
US20050105033A1 (en) | 2005-05-19 |
US7362400B2 (en) | 2008-04-22 |
JP4082683B2 (ja) | 2008-04-30 |
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