JP2007280952A - 導光板及びこれを有する液晶ディスプレー装置 - Google Patents
導光板及びこれを有する液晶ディスプレー装置 Download PDFInfo
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- JP2007280952A JP2007280952A JP2007096290A JP2007096290A JP2007280952A JP 2007280952 A JP2007280952 A JP 2007280952A JP 2007096290 A JP2007096290 A JP 2007096290A JP 2007096290 A JP2007096290 A JP 2007096290A JP 2007280952 A JP2007280952 A JP 2007280952A
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- Prior art keywords
- light guide
- liquid crystal
- light
- guide plate
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 69
- 238000009792 diffusion process Methods 0.000 claims abstract description 122
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 241000276425 Xiphophorus maculatus Species 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 41
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
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Classifications
-
- 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
- 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
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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)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
【解決手段】本発明は、液晶パネルの下部に位置し、一側から提供される光を上記液晶パネル側に屈折させる導光板において、電源印加時に光を提供する光源の一側に配置される板状の導光本体と、上記導光本体の表面に一定パターンで形成される複数個の四角錘形拡散パターンと、を含み、上記拡散パターンは、上記導光本体の表面と直交するよう、頂点を通過する垂直線を回転軸として上記光源の中心と上記導光本体の中心とを連結する基準線に対して時計方向或いは時計の逆方向に10°乃至35°回転され配置される。
【選択図】図6
Description
図6(a)及び(b)は、本発明による導光板の第1実施例を図示した平面図であって、本発明の導光板100は、液晶パネルの下部に位置され、一側から線光源分布を有する光或いは点光源分布を有する光を受け、上記液晶パネル側へ面光源分布に変更されるよう屈折させるもので、これは導光本体110及び拡散パターン120を含んで構成される。
102 反射シート
110 導光本体
120、120a、120b 拡散パターン
150 液晶パネル
O 基準線
Claims (14)
- 液晶パネルの下部に位置し、一側から提供される光を前記液晶パネル側に屈折させる導光板において、
電源印加時光を提供する光源の一側に配置される板状の導光本体と、
前記導光本体の表面に一定パターンで形成される複数個の四角錘形拡散パターンと、を含み、
前記拡散パターンは、前記導光本体の表面と直交するよう、頂点を通過する垂直線を回転軸として前記光源の中心と前記導光本体の中心とを連結する基準線に対して時計方向或いは時計の逆方向に10°乃至35°回転され配置されることを特徴とする導光板。 - 前記拡散パターンは、前記基準線を基準として左右対称型で具備されることを特徴とする請求項1に記載の導光板。
- 前記拡散パターンは、前記液晶パネルと並ぶ導光本体の外部表面に陰刻で具備されることを特徴とする請求項1に記載の導光板。
- 前記拡散パターンは、前記液晶パネルと並ぶ導光本体の外部表面に陽刻で具備されることを特徴とする請求項1に記載の導光板。
- 前記基準線と直交するよう多数列で配置される複数個の拡散パターンは、隣接する列に配置される複数個の拡散パターンと相互交差するよう配置されることを特徴とする請求項1に記載の導光板。
- 電源印加時に光を発生させる光源と、
前記光源の一側に配置される導光本体の表面と直交するよう頂点を通過する垂直線を回転軸として前記光源の中心と前記導光本体の中心とを連結する基準線に対して時計方向或いは時計の逆方向に10°乃至35°回転され配置される四角錘形拡散パターンを前記導光本体の表面に一定パターンで具備する導光板と、
前記導光板から漏れる光を反射させるよう前記導光板の下部に配置される反射シートと、
前記導光板の上部に配置される液晶パネルと、を含む液晶ディスプレー装置。 - 前記導光板と液晶パネルとの間に少なくとも一つの拡散シートをさらに具備することを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記導光板と液晶パネルとの間に少なくとも一つのプリズムシートをさらに具備することを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記拡散パターンは、前記基準線を基準として左右対称型で具備されることを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記拡散パターンは、前記液晶パネルと並ぶ導光本体の外部表面に陰刻で具備されることを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記拡散パターンは、前記液晶パネルと並ぶ導光本体の外部表面に陽刻で具備されることを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記基準線と直交するよう多数列で配置される複数個の拡散パターンは、隣接する列に配置される複数個の拡散パターンと相互交差するよう配置されることを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記光源は、前記導光本体の一側に一体型で少なくとも一つ具備されることを特徴とする請求項6に記載の液晶ディスプレー装置。
- 前記光源は、前記導光本体の一側に分離型で少なくとも一つ具備されることを特徴とする請求項6に記載の液晶ディスプレー装置。
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KR1020060030570A KR100771828B1 (ko) | 2006-04-04 | 2006-04-04 | 도광판 및 이를 갖는 액정 디스플레이 장치 |
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JP2007280952A true JP2007280952A (ja) | 2007-10-25 |
JP4649553B2 JP4649553B2 (ja) | 2011-03-09 |
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US (1) | US7614773B2 (ja) |
JP (1) | JP4649553B2 (ja) |
KR (1) | KR100771828B1 (ja) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010108795A (ja) * | 2008-10-31 | 2010-05-13 | Seiko Instruments Inc | 照明装置および表示装置 |
US8333497B2 (en) | 2008-10-17 | 2012-12-18 | Coretronic Corporation | Light guide plate having micro structures arranged in geometric and stripe patterns |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090047926A (ko) | 2007-11-09 | 2009-05-13 | 삼성전자주식회사 | 백라이트 유닛 |
TWI371631B (en) * | 2008-08-06 | 2012-09-01 | Au Optronics Corp | Backlight module |
CN101344682B (zh) * | 2008-08-21 | 2010-06-02 | 友达光电股份有限公司 | 背光模块 |
US9288908B2 (en) * | 2012-11-02 | 2016-03-15 | Rohm Co., Ltd. | Chip capacitor, circuit assembly, and electronic device |
KR102112652B1 (ko) * | 2013-11-29 | 2020-05-19 | 엘지디스플레이 주식회사 | 액정표시장치 |
CN103913797A (zh) * | 2014-03-17 | 2014-07-09 | 京东方科技集团股份有限公司 | 一种导光板、背光源模组及显示装置 |
CN104375235B (zh) * | 2014-11-26 | 2017-03-08 | 深圳市华星光电技术有限公司 | 导光板、背光模组及显示器 |
JP6402812B1 (ja) * | 2017-08-10 | 2018-10-10 | オムロン株式会社 | 表示装置及び導光板 |
CN107505772A (zh) * | 2017-09-11 | 2017-12-22 | 昆山龙腾光电有限公司 | 棱镜微结构及应用该棱镜微结构的液晶显示装置 |
TWI721448B (zh) * | 2018-06-12 | 2021-03-11 | 日商凸版印刷股份有限公司 | 空中顯示裝置 |
CN111474624A (zh) * | 2020-05-27 | 2020-07-31 | 京东方科技集团股份有限公司 | 背光结构及lcd显示模组 |
WO2023097044A1 (en) * | 2021-11-24 | 2023-06-01 | Archangel Device Llc | System and method for portable, safety lighting |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003255140A (ja) * | 2002-03-06 | 2003-09-10 | Sanyo Electric Co Ltd | 導光板および表示装置 |
JP2003262866A (ja) * | 2002-03-12 | 2003-09-19 | Toshiba Corp | バックライト装置および液晶表示装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW592308U (en) * | 1999-02-17 | 2004-06-11 | Enplas Corp | Light guiding plate, surface light source device, and liquid crystal display device |
JP3891387B2 (ja) * | 2000-02-18 | 2007-03-14 | 株式会社エンプラス | 面光源装置及び表示装置 |
JP2002014208A (ja) * | 2000-04-26 | 2002-01-18 | Sharp Corp | 光学フィルム、光反射フィルム、液晶表示パネル、光学フィルム製造方法および装置、型ローラ製造方法、ならびに光学フィルム貼付方法および装置 |
JP2002055235A (ja) * | 2000-08-11 | 2002-02-20 | Enplas Corp | 導光板、面光源装置及び表示装置 |
KR100737878B1 (ko) | 2001-08-01 | 2007-07-10 | 삼성전자주식회사 | 반사형 액정표시장치 |
KR100789142B1 (ko) * | 2002-01-18 | 2007-12-28 | 삼성전자주식회사 | 도광판, 이를 이용한 박형 액정표시장치 및 이를 이용한시트 리스 액정표시장치 |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003255140A (ja) * | 2002-03-06 | 2003-09-10 | Sanyo Electric Co Ltd | 導光板および表示装置 |
JP2003262866A (ja) * | 2002-03-12 | 2003-09-19 | Toshiba Corp | バックライト装置および液晶表示装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8333497B2 (en) | 2008-10-17 | 2012-12-18 | Coretronic Corporation | Light guide plate having micro structures arranged in geometric and stripe patterns |
JP2010108795A (ja) * | 2008-10-31 | 2010-05-13 | Seiko Instruments Inc | 照明装置および表示装置 |
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Publication number | Publication date |
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CN101051098A (zh) | 2007-10-10 |
CN100474008C (zh) | 2009-04-01 |
JP4649553B2 (ja) | 2011-03-09 |
US20080031006A1 (en) | 2008-02-07 |
KR100771828B1 (ko) | 2007-10-30 |
US7614773B2 (en) | 2009-11-10 |
KR20070099297A (ko) | 2007-10-09 |
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