JP4224474B2 - 偏光光学装置及び液晶ディスプレイモジュール - Google Patents
偏光光学装置及び液晶ディスプレイモジュール Download PDFInfo
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- JP4224474B2 JP4224474B2 JP2005201370A JP2005201370A JP4224474B2 JP 4224474 B2 JP4224474 B2 JP 4224474B2 JP 2005201370 A JP2005201370 A JP 2005201370A JP 2005201370 A JP2005201370 A JP 2005201370A JP 4224474 B2 JP4224474 B2 JP 4224474B2
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- Prior art keywords
- prism
- refractive
- layer
- optical device
- refractive layer
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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
- G02F1/1336—Illuminating devices
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/34—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector
- G02F2201/346—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector distributed (Bragg) reflector
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
- G02F2203/023—Function characteristic reflective total internal reflection
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
2、30 液晶パネル
11 偏光板
20、40 バックライトモジュール
21 プリズム
22 光学膜
23、42 導光板
24、43 反射板
25、44 光源
41 偏光光学装置
411 第一プリズム
412 薄膜
412a 第一屈折層
412b 第二屈折層
413 第二プリズム
Claims (10)
- 複数の第一屈折層と、前記複数の第一屈折層の屈折率と異なる複数の第二屈折層とを有する薄膜、
前記薄膜の下表面に位置され、前記第一屈折層と接する第一プリズム、及び
前記薄膜の上表面に位置され、前記薄膜を中心として前記第一プリズムと線対称になるように配置される第二プリズム、を含む偏光光学装置であって、
前記第二プリズムは、前記第二屈折層からの光が前記薄膜の上表面にほぼ垂線方向に屈折されるように形成される偏光光学装置。 - 第一プリズムは、第一屈折層から第二屈折層への光の入射角がほぼブルースター角となるように形成される請求項1に記載の偏光光学装置。
- 第一屈折層、第二屈折層は、同一の屈折層で屈折率の等しい均質材質である請求項1又は請求項2に記載の偏光光学装置。
- 屈折層の厚さ(T)は、第1プリズムへの入射光(L)の中央波長をλ0とし、屈折層の屈折率をnとしたとき、方程式T=λ0/4nから求められる請求項1〜請求項3のいずれか1項に記載の偏光光学装置。
- 第一プリズムの屈折率は、1.52〜1.65であり、第一屈折層の屈折率は、2.0〜2.2であり、第二屈折層の屈折率は、1.38〜1.5である請求項1〜請求項4のいずれか1項に記載の偏光光学装置。
- 第一屈折層と第二屈折層が、交互に配置されており、第一屈折層と第二屈折層の数が、それぞれ3〜5である請求項1〜請求項5のいずれか1項に記載の偏光光学装置。
- 第一プリズムの屈折率は、1.62であり、第一屈折層の屈折率は、2.2であり、第二屈折層の屈折率は、1.38である請求項1〜請求項6のいずれか1項に記載の偏光光学装置。
- 第一プリズムの頂角は、56度である請求項7に記載の偏光光学装置。
- 第一屈折層と第二屈折層が交互に配置されており、第一屈折層と第二屈折層の数はいずれも3である請求項1〜請求項8のいずれか1項に記載の偏光光学装置。
- バックライトモジュール、及び、前記バックライトモジュールに配置された液晶パネルを含み、
前記バックライトモジュールは、請求項1〜請求項9のいずれか1項に記載の偏光光学装置を含む液晶ディスプレイモジュール。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW093130365A TWI253525B (en) | 2004-10-07 | 2004-10-07 | Polarization optical device and liquid crystal display module utilizing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006106687A JP2006106687A (ja) | 2006-04-20 |
JP4224474B2 true JP4224474B2 (ja) | 2009-02-12 |
Family
ID=36144840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005201370A Active JP4224474B2 (ja) | 2004-10-07 | 2005-07-11 | 偏光光学装置及び液晶ディスプレイモジュール |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060077316A1 (ja) |
JP (1) | JP4224474B2 (ja) |
TW (1) | TWI253525B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI330722B (en) * | 2007-02-09 | 2010-09-21 | Au Optronics Corp | Optical film assembly, and backlight module and lcd apparatus comprising the same |
TWI494619B (zh) * | 2011-06-09 | 2015-08-01 | Innolux Corp | 液晶顯示裝置 |
CN112987406A (zh) * | 2021-03-25 | 2021-06-18 | 京东方科技集团股份有限公司 | 一种背光模组及显示装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03156421A (ja) * | 1989-11-15 | 1991-07-04 | Mitsubishi Rayon Co Ltd | 偏光光源装置 |
JPH03157621A (ja) * | 1989-11-16 | 1991-07-05 | Mitsubishi Rayon Co Ltd | 偏光光源装置 |
FR2685100A1 (fr) * | 1991-12-17 | 1993-06-18 | Thomson Csf | Separateur de polarisations optique et application a un systeme de visualisation. |
US6002829A (en) * | 1992-03-23 | 1999-12-14 | Minnesota Mining And Manufacturing Company | Luminaire device |
JP3521940B2 (ja) * | 1992-10-09 | 2004-04-26 | 旭硝子株式会社 | 照明装置および液晶表示装置 |
US5882774A (en) * | 1993-12-21 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Optical film |
JPH10293212A (ja) * | 1997-02-18 | 1998-11-04 | Dainippon Printing Co Ltd | バックライト及び液晶表示装置 |
US6208466B1 (en) * | 1998-11-25 | 2001-03-27 | 3M Innovative Properties Company | Multilayer reflector with selective transmission |
FR2793566B1 (fr) * | 1999-05-11 | 2002-07-12 | Thomson Csf | Separateur de polarisations |
US6356391B1 (en) * | 1999-10-08 | 2002-03-12 | 3M Innovative Properties Company | Optical film with variable angle prisms |
JP2001264537A (ja) * | 2000-03-17 | 2001-09-26 | Fujitsu Ltd | 偏光合成装置及び表示装置 |
-
2004
- 2004-10-07 TW TW093130365A patent/TWI253525B/zh not_active IP Right Cessation
-
2005
- 2005-01-06 US US11/030,640 patent/US20060077316A1/en not_active Abandoned
- 2005-07-11 JP JP2005201370A patent/JP4224474B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
TWI253525B (en) | 2006-04-21 |
JP2006106687A (ja) | 2006-04-20 |
US20060077316A1 (en) | 2006-04-13 |
TW200612147A (en) | 2006-04-16 |
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