JP2013037376A - 光学シート及びそれを含む光学装置 - Google Patents
光学シート及びそれを含む光学装置 Download PDFInfo
- Publication number
- JP2013037376A JP2013037376A JP2012208471A JP2012208471A JP2013037376A JP 2013037376 A JP2013037376 A JP 2013037376A JP 2012208471 A JP2012208471 A JP 2012208471A JP 2012208471 A JP2012208471 A JP 2012208471A JP 2013037376 A JP2013037376 A JP 2013037376A
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- Prior art keywords
- optical
- optical sheet
- prism
- elements
- anisotropic diffusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】第1方向に延びる複数のプリズム要素331を有する集光部330と、集光部330のプリズム要素331が形成された面と反対側の出射面に形成され、第1方向と異なる第2方向に延びる複数の光学要素を有する異方性拡散部310とを有する光学シート300。側面に入射面を備える導光板200と、導光板200の上部に設けられた光学シート300と、光学シート300の上部に設けられたプリズムシート400とを有し、異方性拡散部310はレンチキュラーである光学装置。
【選択図】 図2
Description
200・・・導光板
300・・・光学シート
310・・・異方性拡散部
311,312・・・レンチキュラー
311’,312’・・・レンチキュラー要素
313’・・・木の葉状の光学要素
315・・・追加の散乱要素
330・・・集光部
331・・・プリズム要素
332・・・散乱要素
400・・・プリズムシート
500・・・液晶表示パネル
Claims (18)
- 第1方向に延びる複数のプリズム要素を有する集光部と、前記プリズム要素が形成された面と反対側の出射面に形成され、前記第1方向と異なる第2方向に延びる複数の光学要素を有する異方性拡散部とを有し、
前記異方性拡散部はレンチキュラーであることを特徴とする光学シート。 - 請求項1に記載の光学シートにおいて、前記プリズム要素間の谷部に複数の散乱要素が形成されていることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記第1方向と前記第2方向とが直交していることを特徴とする光学シート。
- 請求項2に記載の光学シートにおいて、前記散乱要素の高さは前記プリズム要素の高さの1/2以下であることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記異方性拡散部の出射光分布の短軸方向が前記第2方向と一致し、前記出射光分布の長短軸比が2:1以上であることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記光学要素は短軸及び長軸を有し、長軸から短軸方向の縁に向けて高さが変化する凹状又は突起状であることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記レンチキュラーのピッチに対するR値は0.65以下であることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記光学要素は半球状又は半円柱状であることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記光学要素間に複数の散乱要素が形成されていることを特徴とする光学シート。
- 請求項2に記載の光学シートにおいて、前記複数の散乱要素はサンディング面、ブラスティング面又はスクラッチング面を有するモールド又はローラにより形成されていることを特徴とする光学シート。
- 請求項1に記載の光学シートにおいて、前記集光部と前記異方性拡散部との間に透光性ベース部をさらに有することを特徴とする光学シート。
- 側面に入射面を備えた導光板と、前記導光板の上方に設けられ、第1方向に延びる複数のプリズム要素を有する集光部、及び前記プリズム要素が形成された面と反対側の出射面に前記第1方向と異なる第2方向に延びる複数の光学要素が形成された異方性拡散部を有する光学シートと、前記光学シートの上方に設けられたプリズムシートとを有し、
前記異方性拡散部はレンチキュラーであることを特徴とする光学装置。 - 請求項12に記載の光学装置において、前記集光部のプリズム要素間の谷部に複数の散乱要素が形成されていることを特徴とする光学装置。
- 請求項12に記載の光学装置において、前記第1方向と前記第2方向とは直交していることを特徴とする光学装置。
- 請求項12に記載の光学装置において、前記プリズムシートのプリズム要素は前記第1方向と垂直に延びていることを特徴とする光学装置。
- 請求項12に記載の光学装置において、前記プリズムシートのプリズム要素は前記第2方向に延びていることを特徴とする光学装置。
- 請求項13に記載の光学装置において、前記散乱要素の高さは前記プリズム要素の高さの1/2以下であることを特徴とする光学装置。
- 請求項12に記載の光学装置において、前記異方性拡散部の出射光分布の短軸方向が第2方向と一致し、前記出射光分布の長短軸比が2:1以上であることを特徴とする光学装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090059925A KR100966640B1 (ko) | 2009-07-01 | 2009-07-01 | 통합형 광학 시트 및 이를 포함하는 광학장치 |
KR10-2009-0059925 | 2009-07-01 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009292156A Division JP2011013658A (ja) | 2009-07-01 | 2009-12-24 | 光学シート及びそれを含む光学装置 |
Publications (1)
Publication Number | Publication Date |
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JP2013037376A true JP2013037376A (ja) | 2013-02-21 |
Family
ID=42370539
Family Applications (2)
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JP2009292156A Pending JP2011013658A (ja) | 2009-07-01 | 2009-12-24 | 光学シート及びそれを含む光学装置 |
JP2012208471A Pending JP2013037376A (ja) | 2009-07-01 | 2012-09-21 | 光学シート及びそれを含む光学装置 |
Family Applications Before (1)
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JP2009292156A Pending JP2011013658A (ja) | 2009-07-01 | 2009-12-24 | 光学シート及びそれを含む光学装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110002144A1 (ja) |
JP (2) | JP2011013658A (ja) |
KR (1) | KR100966640B1 (ja) |
CN (1) | CN101943822B (ja) |
TW (1) | TW201102681A (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102313242B (zh) * | 2011-07-01 | 2014-02-19 | 凯鑫森(上海)功能性薄膜产业有限公司 | 减少云纹干扰的光学片、背光模组及液晶显示器件 |
WO2013096324A1 (en) * | 2011-12-21 | 2013-06-27 | 3M Innovative Properties Company | Optical film stack |
KR101240358B1 (ko) * | 2012-08-27 | 2013-03-11 | 레이젠 주식회사 | 광산란긁힘결이 형성된 도광판 제조방법 |
US20140160392A1 (en) * | 2012-12-12 | 2014-06-12 | Shenzhen China Star Optoelectronics Technology Co. Ltd. | Optical fiber for backlight module, backlight module and liquid crystal display device |
KR101525535B1 (ko) * | 2014-01-10 | 2015-06-03 | 주식회사 엘엠에스 | 광학시트 조립체 및 이를 포함하는 백라이트 유닛 |
CN105629370A (zh) * | 2016-01-05 | 2016-06-01 | 京东方光科技有限公司 | 一种导光板、背光模组及显示装置 |
CN106997121B (zh) * | 2016-01-26 | 2020-08-18 | 台湾扬昕股份有限公司 | 光源模组、显示器装置以及光转向膜 |
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2009
- 2009-07-01 KR KR1020090059925A patent/KR100966640B1/ko active IP Right Grant
- 2009-11-25 US US12/625,868 patent/US20110002144A1/en not_active Abandoned
- 2009-12-22 TW TW098144110A patent/TW201102681A/zh unknown
- 2009-12-23 CN CN2009102599628A patent/CN101943822B/zh active Active
- 2009-12-24 JP JP2009292156A patent/JP2011013658A/ja active Pending
-
2012
- 2012-09-21 JP JP2012208471A patent/JP2013037376A/ja active Pending
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Also Published As
Publication number | Publication date |
---|---|
CN101943822B (zh) | 2012-08-29 |
TW201102681A (en) | 2011-01-16 |
JP2011013658A (ja) | 2011-01-20 |
CN101943822A (zh) | 2011-01-12 |
KR100966640B1 (ko) | 2010-06-29 |
US20110002144A1 (en) | 2011-01-06 |
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