JP5154332B2 - 光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー - Google Patents
光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー Download PDFInfo
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- JP5154332B2 JP5154332B2 JP2008206080A JP2008206080A JP5154332B2 JP 5154332 B2 JP5154332 B2 JP 5154332B2 JP 2008206080 A JP2008206080 A JP 2008206080A JP 2008206080 A JP2008206080 A JP 2008206080A JP 5154332 B2 JP5154332 B2 JP 5154332B2
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- light
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- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
- Planar Illumination Modules (AREA)
Description
そして、前記二等辺三角柱模様の突出部(120)は数10μmで数100μmのピッチを持って、三角柱の頂角(α)は60°〜130°の範囲を有する。
そして、前記頂角(α)の角度が鋭角であればあるほど輝度が高くなる代わりに視野角は狭くなる特性を持つ。
又、光の集光及び拡散効率を増加させることで、光の輝度特性及び視野角特性を改善することができる光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリーを提案することを目的にする。
(1) 光が流入される本体部;及び
前記本体部に所定の厚さに突出形成される凸部;を含み、
前記凸部は、
前記凸部の平均の長さ(d)が45〜70μmの範囲に形成され、d=50μmである凸部が50%、d=45μmである凸部が25%、d=55μmである凸部が10%、d=60μmである凸部が10%、d=65μmである凸部が5%となる構成によって前記本体部に不規則に配列され、
前記凸部の所定の厚さは前記凸部の平均の長さ(d)の1/2〜1/3の範囲になることを特徴とする光学シート
及び
(2) 光を発生させるランプ;
前記ランプの側面に配置されて光を案内する導光板;及び
前記導光板の上側に配置されて、前記導光板から入射される光を拡散又は集光させる光学シート;を含み、
前記光学シートは
光が流入される本体部;及び
前記本体部に所定の厚さに突出形成される凸部;を含み、
前記凸部は、
前記凸部の平均の長さ(d)が45〜70μmの範囲に形成され、d=50μmである凸部が50%、d=45μmである凸部が25%、d=55μmである凸部が10%、d=60μmである凸部が10%、d=65μmである凸部が5%となる構成によって前記本体部に不規則に配列され、
前記凸部の所定の厚さは前記凸部の平均の長さ(d)の1/2〜1/3の範囲になることを特徴とする液晶表示装置のバックライトアセンブリー
を提供する。
前記凸部(511)が提供される個数は次の数式1のように示すことができる。
510 本体部
511 凸部
Claims (2)
- 光が流入される本体部;及び
前記本体部に所定の厚さに突出形成される凸部;を含み、
前記凸部は、
前記凸部の平均の長さ(d)が45〜70μmの範囲に形成され、d=50μmである凸部が50%、d=45μmである凸部が25%、d=55μmである凸部が10%、d=60μmである凸部が10%、d=65μmである凸部が5%となる構成によって前記本体部に不規則に配列され、
前記凸部の所定の厚さは前記凸部の平均の長さ(d)の1/2〜1/3の範囲になることを特徴とする光学シート。 - 光を発生させるランプ;
前記ランプの側面に配置されて光を案内する導光板;及び
前記導光板の上側に配置されて、前記導光板から入射される光を拡散又は集光させる光学シート;を含み、
前記光学シートは
光が流入される本体部;及び
前記本体部に所定の厚さに突出形成される凸部;を含み、
前記凸部は、
前記凸部の平均の長さ(d)が45〜70μmの範囲に形成され、d=50μmである凸部が50%、d=45μmである凸部が25%、d=55μmである凸部が10%、d=60μmである凸部が10%、d=65μmである凸部が5%となる構成によって前記本体部に不規則に配列され、
前記凸部の所定の厚さは前記凸部の平均の長さ(d)の1/2〜1/3の範囲になることを特徴とする液晶表示装置のバックライトアセンブリー。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-0033262 | 2005-04-21 | ||
KR1020050033262A KR100665871B1 (ko) | 2005-04-21 | 2005-04-21 | 액정표시장치의 백라이트 어셈블리 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005378706A Division JP2006301582A (ja) | 2005-04-21 | 2005-12-28 | 光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009015335A JP2009015335A (ja) | 2009-01-22 |
JP2009015335A5 JP2009015335A5 (ja) | 2009-03-05 |
JP5154332B2 true JP5154332B2 (ja) | 2013-02-27 |
Family
ID=37186641
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2005378706A Pending JP2006301582A (ja) | 2005-04-21 | 2005-12-28 | 光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー |
JP2008206080A Active JP5154332B2 (ja) | 2005-04-21 | 2008-08-08 | 光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー |
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JP2005378706A Pending JP2006301582A (ja) | 2005-04-21 | 2005-12-28 | 光学シート及び前記光学シートが具備された液晶表示装置のバックライトアセンブリー |
Country Status (5)
Country | Link |
---|---|
US (2) | US7344282B2 (ja) |
JP (2) | JP2006301582A (ja) |
KR (1) | KR100665871B1 (ja) |
CN (1) | CN1854846B (ja) |
TW (2) | TW200909944A (ja) |
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JP2005055485A (ja) | 2003-08-04 | 2005-03-03 | Victor Co Of Japan Ltd | マイクロレンズアレイを用いた表示板 |
JP2005077546A (ja) | 2003-08-29 | 2005-03-24 | Sharp Corp | マイクロレンズアレイを備えた光学素子及びそれを備えた液晶表示装置とその製造方法 |
KR20050083468A (ko) | 2004-02-23 | 2005-08-26 | 엘지전자 주식회사 | 마이크로렌즈 어레이 시트가 적용된 조명 기구를 구비한액정 표시 장치 및 마이크로렌즈 어레이 시트의 제조 방법 |
KR20060015174A (ko) * | 2004-08-13 | 2006-02-16 | 삼성전자주식회사 | 프리즘 시트 및 이를 구비한 액정표시장치 |
CN1947035B (zh) | 2004-09-30 | 2010-07-14 | 索尼株式会社 | 光学片材、背光装置和液晶显示设备 |
KR100665871B1 (ko) * | 2005-04-21 | 2007-01-10 | 미래나노텍(주) | 액정표시장치의 백라이트 어셈블리 |
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2005
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- 2005-12-27 US US11/318,922 patent/US7344282B2/en active Active
- 2005-12-28 JP JP2005378706A patent/JP2006301582A/ja active Pending
- 2005-12-30 CN CN2005100975479A patent/CN1854846B/zh active Active
- 2005-12-30 TW TW097120293A patent/TW200909944A/zh unknown
- 2005-12-30 TW TW094147778A patent/TWI315018B/zh active
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- 2008-01-18 US US12/016,756 patent/US7645057B2/en active Active
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JP2009015335A (ja) | 2009-01-22 |
US20080180598A1 (en) | 2008-07-31 |
US20060239008A1 (en) | 2006-10-26 |
JP2006301582A (ja) | 2006-11-02 |
US7344282B2 (en) | 2008-03-18 |
KR100665871B1 (ko) | 2007-01-10 |
US7645057B2 (en) | 2010-01-12 |
CN1854846B (zh) | 2012-11-14 |
TWI315018B (en) | 2009-09-21 |
CN1854846A (zh) | 2006-11-01 |
KR20060110990A (ko) | 2006-10-26 |
TW200909944A (en) | 2009-03-01 |
TW200638134A (en) | 2006-11-01 |
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