JP2006196458A - バックライトモジュール及びそのレンズ - Google Patents
バックライトモジュール及びそのレンズ Download PDFInfo
- Publication number
- JP2006196458A JP2006196458A JP2006001318A JP2006001318A JP2006196458A JP 2006196458 A JP2006196458 A JP 2006196458A JP 2006001318 A JP2006001318 A JP 2006001318A JP 2006001318 A JP2006001318 A JP 2006001318A JP 2006196458 A JP2006196458 A JP 2006196458A
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens
- backlight module
- reflecting surface
- light source
- 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.)
- Granted
Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0025—Combination of two or more reflectors for a single light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- 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
- G02F1/133604—Direct backlight with lamps
-
- 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
- G02F1/133605—Direct backlight including specially adapted 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0008—Reflectors for light sources providing for indirect lighting
- F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Lenses (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
【課題】 画面の明るさを均一なものとすることができるバックライトモジュールを提供する。
【解決手段】 レンズ21の底面は、光透過面211である。光透過面211の断面は凹面である。光透過面211に隣接した光反射面212は、前反射層215と後反射層216を含む。光反射面212の断面は凹面である。側面213は、半透明または透明であり、傾斜して光反射面212と光透過面211とを接続する。拡散面214は、光反射面の中心軸に形成された凸面である。光透過面211は、光源を収容するための光透過面211の中央に空間217を含む。
【選択図】 図4
Description
11、11a 拡散板
12 フレーム
13 反射シート
14 ランプ
d ランプ14と拡散板11の距離
21 レンズ
211 光透過面
212 反射面
213 側面
214 拡散面
215 前反射層
216 後反射層
217 空間
30 光源
301 後光線
302 前光線
303 反射光線
304 直接拡散光線
305 間接拡散光線
306 第一側光線
307 第二側光線
40 反射シート
50 拡散板
Claims (8)
- 反射シート、光源、及び、前記光源の上に配置されたレンズを少なくとも一つ備える液晶ディスプレイのバックライトモジュールであって、
前記レンズは、光反射面、光透過面、二つの側面と、拡散面を含み、
前記光透過面は、前記レンズの底面に位置する凹面であり、
前記光反射面は、前記レンズの上に位置する凹面であり、
前記二つの側面は、前記光反射面と前記光透過面とを接続し、且つ、
前記拡散面は、光反射面の中心軸に形成された凸面であるバックライトモジュール。 - 前記光反射面は、前記光源に面した後反射層と、前記後反射層に相対する前反射層とを含む請求項1に記載のバックライトモジュール。
- 前記側面は、半透明である請求項1又は請求項2に記載のバックライトモジュール。
- 前記レンズは、前記光源を収容するための空間を有する請求項1〜請求項3のいずれか1項に記載のバックライトモジュール。
- 前記光源が、反射シートに放射し、反射シートより反射される後光線を発生させるために用いられる請求項1〜請求項4のいずれか1項に記載のバックライトモジュール。
- 前記光源が、前光線を前記レンズに直接、放射するために用いられる請求項1〜請求項5のいずれか1項に記載のバックライトモジュール。
- 前記レンズの上に配置される拡散板を更に含む請求項1〜請求項6のいずれか1項に記載のバックライトモジュール。
- 光透過面を有する底部、
前記光透過面に相対する光反射面を有する上部、
前記光反射面と前記光透過面とを接続する二つの側面、及び
前記光反射面の中心軸に形成された拡散面を含むレンズであって、
前記光透過面は、空間を含む凹面であり、
前記光反射面は、凹面であり、且つ、
前記拡散面は、凸面であるレンズ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094100833A TWI254162B (en) | 2005-01-12 | 2005-01-12 | Backlight module, lens for a liquid crystal display and illuminating liquid crystal display |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006196458A true JP2006196458A (ja) | 2006-07-27 |
JP4170343B2 JP4170343B2 (ja) | 2008-10-22 |
Family
ID=36190915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006001318A Expired - Fee Related JP4170343B2 (ja) | 2005-01-12 | 2006-01-06 | バックライトモジュール及びそのレンズ |
Country Status (3)
Country | Link |
---|---|
US (1) | US7033061B1 (ja) |
JP (1) | JP4170343B2 (ja) |
TW (1) | TWI254162B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009031423A (ja) * | 2007-07-25 | 2009-02-12 | Stanley Electric Co Ltd | 原稿読取用光源装置 |
WO2012176352A1 (ja) * | 2011-06-21 | 2012-12-27 | パナソニック株式会社 | 照明構造 |
KR101460152B1 (ko) | 2008-05-09 | 2014-11-11 | 삼성디스플레이 주식회사 | 광 가이드 유닛 및 이를 갖는 백라이트 어셈블리 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI246606B (en) * | 2005-01-12 | 2006-01-01 | Au Optronics Corp | Backlight module, dish lens for backlight module and light emitting diode |
CN1847949A (zh) * | 2005-04-15 | 2006-10-18 | 鸿富锦精密工业(深圳)有限公司 | 直下式背光模组 |
US7566141B2 (en) * | 2005-05-20 | 2009-07-28 | K-Rain Manufacturing Corporation | Cassegrain optical configuration to expand high intensity LED flashlight to larger diameter lower intensity beam |
US20070091615A1 (en) * | 2005-10-25 | 2007-04-26 | Chi-Tang Hsieh | Backlight module for LCD monitors and method of backlighting the same |
TWI354839B (en) * | 2007-08-28 | 2011-12-21 | Chunghwa Picture Tubes Ltd | Back light module |
US7918593B2 (en) * | 2007-12-27 | 2011-04-05 | Honda Motor Co., Ltd. | Head unit background illumination |
TWI476487B (zh) * | 2009-06-16 | 2015-03-11 | Hon Hai Prec Ind Co Ltd | 背光模組 |
GB2473883A (en) * | 2009-09-29 | 2011-03-30 | 3M Innovative Properties Co | Read head illumination system, for scanning device |
US9341766B2 (en) * | 2010-06-15 | 2016-05-17 | Sharp Kabushiki Kaisha | Lighting device, display device and television device |
CN102261594A (zh) * | 2011-08-26 | 2011-11-30 | 清华大学深圳研究生院 | 一种led灯 |
DE102012213194A1 (de) * | 2012-07-26 | 2014-01-30 | Osram Gmbh | Strahlungsanordnung zum Bereitstellen elektromagnetischer Strahlung |
US8960969B2 (en) * | 2012-09-28 | 2015-02-24 | Lsi Corporation | Semiconductor structure with waveguide |
KR102081724B1 (ko) * | 2013-03-21 | 2020-02-26 | 삼성전자주식회사 | 디스플레이 장치의 백라이트 유닛 |
CN104180241A (zh) * | 2013-05-22 | 2014-12-03 | 扬升照明股份有限公司 | 背光模块 |
TWI567460B (zh) * | 2015-12-11 | 2017-01-21 | 友達光電股份有限公司 | 背光模組 |
CN107315279B (zh) * | 2017-07-24 | 2020-04-28 | 深圳市华星光电技术有限公司 | 直下式背光模组 |
FI130269B (fi) * | 2018-10-15 | 2023-05-24 | Obelux Oy | Linssi, valaisin ja ympärisäteilevä valaisujärjestelmä |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2254962A (en) * | 1937-09-22 | 1941-09-02 | George M Cressaty | Unitary lens system |
CH541140A (de) * | 1971-12-31 | 1973-08-31 | Gretag Ag | Beleuchtungsanordnung |
US20020085390A1 (en) * | 2000-07-14 | 2002-07-04 | Hironobu Kiyomoto | Optical device and apparatus employing the same |
-
2005
- 2005-01-12 TW TW094100833A patent/TWI254162B/zh not_active IP Right Cessation
- 2005-09-26 US US11/234,932 patent/US7033061B1/en active Active
-
2006
- 2006-01-06 JP JP2006001318A patent/JP4170343B2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009031423A (ja) * | 2007-07-25 | 2009-02-12 | Stanley Electric Co Ltd | 原稿読取用光源装置 |
KR101460152B1 (ko) | 2008-05-09 | 2014-11-11 | 삼성디스플레이 주식회사 | 광 가이드 유닛 및 이를 갖는 백라이트 어셈블리 |
WO2012176352A1 (ja) * | 2011-06-21 | 2012-12-27 | パナソニック株式会社 | 照明構造 |
Also Published As
Publication number | Publication date |
---|---|
JP4170343B2 (ja) | 2008-10-22 |
US7033061B1 (en) | 2006-04-25 |
TWI254162B (en) | 2006-05-01 |
TW200624908A (en) | 2006-07-16 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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