KR100762034B1 - Ocb 모드 액정표시장치 - Google Patents
Ocb 모드 액정표시장치 Download PDFInfo
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- KR100762034B1 KR100762034B1 KR1020050037931A KR20050037931A KR100762034B1 KR 100762034 B1 KR100762034 B1 KR 100762034B1 KR 1020050037931 A KR1020050037931 A KR 1020050037931A KR 20050037931 A KR20050037931 A KR 20050037931A KR 100762034 B1 KR100762034 B1 KR 100762034B1
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- liquid crystal
- phase retardation
- optical axis
- retardation film
- crystal cell
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
-
- 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
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/133528—Polarisers
- G02F1/133541—Circular polarisers
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/04—Number of plates greater than or equal to 4
Abstract
Description
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.
참고로, 위상 지연 필름은 필름 각 축의 굴절율 값에 있어서 nx, ny, nz가 nx>ny=nz인 일축성 위상 지연 필름으로 이루어지고 nx축이 광축이 되는 A필름, 필름 각 축의 굴절율 값에 있어 nx, ny, nz가 nx=ny>nz인 일축성 위상 지연 필름으로 이루어지고 nx축이 광축이 되는 C필름, 그리고, 필름 각 축의 굴절율 값에 있어 nx, ny, nz가 nx>ny>nz인 이축성 위상 지연 필름을 포함한다. 상기 이축성 위상 지연 필름의 광축은 nz축으로 표현된다.
그리고, 정면 위상 지연 필름은 이축성 위상 지연 필름에서 정면 위상 지연 값, 즉, {(nx-ny)/2-nz}×d의 값을 의미하며, 측면 위상 지연 필름은 이축성 위상 지연 필름에서 측면 위상 지연 값, 즉, {(nx-ny)/2-nz}×d의 값을 의미한다. 여기서, 상기 d는 액정셀의 두께를 나타낸다.
Claims (8)
- 소정의 방향으로 러빙된 기판에 의하여 형성된 액정셀;상기 액정셀 일측에 마련된 상부 위상 지연 필름;상기 상부 위상 지연 필름 일측에 마련된 상부 원형 편광판;상기 액정셀 타측에 상기 상부 위상 지연 필름과 대칭적으로 마련된 하부 위상 지연 필름; 및상기 하부 위상 지연 필름 타측에 상기 상부 원형 편광판과 대칭적으로 마련되며, 상기 상부 원형 편광판의 광축과 직교하는 광축을 가진 하부 원형 편광판;을 포함하며,상기 상하부 위상 지연 필름 각각은 정면 위상 지연 필름 및 측면 위상 지연 필름을 포함하고,상기 상하부 원형 편광판은 상하부 선형 편광판과 상기 액정셀 측으로 상기 상하부 선형 편광판 상의 각각에 적층된 상하부 λ/4 위상 지연판으로 구성되고, 상기 상부 선형 편광판의 광축 및 상기 하부 선형 편광판의 광축 중 어느 하나의 광축은 상기 러빙 방향과 일치하는 것을 특징으로 하는 OCB 모드 액정표시장치.
- 삭제
- 삭제
- 제1항에 있어서,상기 상부 λ/4 위상 지연판의 광축 및 상기 하부 λ/4 위상 지연판의 광축 중 어느 하나의 광축은 상기 러빙 방향과 45°를 이루는 것을 특징으로 하는 OCB 모드 액정표시장치.
- 제1항에 있어서,상기 상하부 위상 지연 필름의 위상 지연 범위는 20~100㎚의 정면값과 200~400㎚의 두께 방향값을 갖는 것을 특징으로 하는 OCB 모드 액정표시장치.
- 제1항에 있어서,상기 상하부 λ/4 위상 지연판은 가시광 파장 범위인 400~800㎚에서 λ/4 위상 지연값을 갖는 것을 특징으로 하는 OCB 모드 액정표시장치.
- 삭제
- 삭제
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050037931A KR100762034B1 (ko) | 2005-05-06 | 2005-05-06 | Ocb 모드 액정표시장치 |
US11/332,278 US20060250547A1 (en) | 2005-05-06 | 2006-01-13 | Optically compensated birefringence (OCB) mode liquid crystal display device |
TW095101287A TW200639534A (en) | 2005-05-06 | 2006-01-13 | Optically compensated birefringence (OCB) mode liquid crystal display device |
CNA2006100086309A CN1858638A (zh) | 2005-05-06 | 2006-02-20 | 光学补偿双折射模式液晶显示装置 |
JP2006106689A JP2006313342A (ja) | 2005-05-06 | 2006-04-07 | Ocbモード液晶表示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050037931A KR100762034B1 (ko) | 2005-05-06 | 2005-05-06 | Ocb 모드 액정표시장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060115491A KR20060115491A (ko) | 2006-11-09 |
KR100762034B1 true KR100762034B1 (ko) | 2007-09-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020050037931A KR100762034B1 (ko) | 2005-05-06 | 2005-05-06 | Ocb 모드 액정표시장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060250547A1 (ko) |
JP (1) | JP2006313342A (ko) |
KR (1) | KR100762034B1 (ko) |
CN (1) | CN1858638A (ko) |
TW (1) | TW200639534A (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090002609A1 (en) * | 2007-05-18 | 2009-01-01 | Mitsutaka Okita | Liquid crystal display device |
EP2259131B1 (en) * | 2008-04-07 | 2012-06-20 | Sharp Kabushiki Kaisha | Liquid crystal display |
KR20090119450A (ko) * | 2008-05-16 | 2009-11-19 | 삼성전자주식회사 | 액정 표시 장치 및 그 제조 방법 |
JP2020085931A (ja) * | 2018-11-15 | 2020-06-04 | シャープ株式会社 | 液晶表示装置 |
US10948779B2 (en) * | 2019-04-12 | 2021-03-16 | Facebook Technologies, Llc | Broadband and wide viewing angle waveplate having pi-cell |
CN112255794B (zh) * | 2020-10-28 | 2022-07-19 | 上海悠睿光学有限公司 | 光学模组、近眼显示装置和光投射方法 |
CN112698527B (zh) * | 2020-12-30 | 2023-04-18 | 天马微电子股份有限公司 | 液晶显示面板及显示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020044280A (ko) * | 2000-12-05 | 2002-06-15 | 주식회사 현대 디스플레이 테크놀로지 | 광학적으로 보상된 밴드 모드 액정 표시 장치 |
KR20040044516A (ko) * | 2001-08-29 | 2004-05-28 | 후지 샤신 필름 가부시기가이샤 | 광학적 보상 필름의 제공 방법, 광학적 보상 필름, 원형편광 플레이트 및 액정 디스플레이 |
KR20040061343A (ko) * | 2002-12-30 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | 오. 씨. 비 모드 액정표시장치 |
KR20040066159A (ko) * | 2001-12-12 | 2004-07-23 | 메르크 파텐트 게엠베하 | 이축 필름 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998048320A1 (fr) * | 1997-04-23 | 1998-10-29 | Sharp Kabushiki Kaisha | Afficheur reflectif a cristaux liquides pourvu d'un ecran tactile integre |
JP4228973B2 (ja) * | 2004-04-08 | 2009-02-25 | セイコーエプソン株式会社 | 液晶表示装置および電子機器 |
JP3901172B2 (ja) * | 2004-05-28 | 2007-04-04 | セイコーエプソン株式会社 | 液晶表示装置および電子機器 |
-
2005
- 2005-05-06 KR KR1020050037931A patent/KR100762034B1/ko active IP Right Grant
-
2006
- 2006-01-13 TW TW095101287A patent/TW200639534A/zh unknown
- 2006-01-13 US US11/332,278 patent/US20060250547A1/en not_active Abandoned
- 2006-02-20 CN CNA2006100086309A patent/CN1858638A/zh active Pending
- 2006-04-07 JP JP2006106689A patent/JP2006313342A/ja not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020044280A (ko) * | 2000-12-05 | 2002-06-15 | 주식회사 현대 디스플레이 테크놀로지 | 광학적으로 보상된 밴드 모드 액정 표시 장치 |
KR20040044516A (ko) * | 2001-08-29 | 2004-05-28 | 후지 샤신 필름 가부시기가이샤 | 광학적 보상 필름의 제공 방법, 광학적 보상 필름, 원형편광 플레이트 및 액정 디스플레이 |
KR20040066159A (ko) * | 2001-12-12 | 2004-07-23 | 메르크 파텐트 게엠베하 | 이축 필름 |
KR20040061343A (ko) * | 2002-12-30 | 2004-07-07 | 엘지.필립스 엘시디 주식회사 | 오. 씨. 비 모드 액정표시장치 |
Also Published As
Publication number | Publication date |
---|---|
CN1858638A (zh) | 2006-11-08 |
US20060250547A1 (en) | 2006-11-09 |
JP2006313342A (ja) | 2006-11-16 |
TW200639534A (en) | 2006-11-16 |
KR20060115491A (ko) | 2006-11-09 |
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