JP4801114B2 - 液晶ディスプレイのバックライトランプ及びバックライトモジュール - Google Patents
液晶ディスプレイのバックライトランプ及びバックライトモジュール Download PDFInfo
- Publication number
- JP4801114B2 JP4801114B2 JP2008141729A JP2008141729A JP4801114B2 JP 4801114 B2 JP4801114 B2 JP 4801114B2 JP 2008141729 A JP2008141729 A JP 2008141729A JP 2008141729 A JP2008141729 A JP 2008141729A JP 4801114 B2 JP4801114 B2 JP 4801114B2
- Authority
- JP
- Japan
- Prior art keywords
- backlight
- lamp
- lamp tube
- liquid crystal
- crystal display
- 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.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 39
- 230000003287 optical effect Effects 0.000 description 16
- 238000009792 diffusion process Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/136—Reflex reflectors plural reflecting elements forming part of a unitary body
-
- 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
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
- G02B5/13—Reflex reflectors including curved refracting surface plural curved refracting elements forming part of a unitary body
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/025—Associated optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/33—Special shape of cross-section, e.g. for producing cool spot
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/007—Incandescent lamp or gas discharge lamp
- G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
-
- 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)
- 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)
Description
1、灯管から射出した外部光線が再び灯管に反射される反射量を減少し、光の損失を減少し、バックライトランプの光損失量を、灯管の総発光量の約4%まで低減させる。
2、バックライトの光線利用率を向上し、バックライトの輝度を向上する。
3、バックライトのエネルギー消耗を減少する。
図12は本発明にかかる液晶ディスプレイのバックライトモジュールの実施例の構造概略図である。該バックライトモジュールは、反射板10と、導光板11と、下拡散シート12と、下プリズム膜13と、上プリズム膜14と、上拡散シート15と、導光板11の少なくとも片側に設置されるバックライトランプ16と、バックライトランプ16の外面に設置されるバックライトランプの反射板17と、を備える。バックライトランプ16は前記バックライトランプの実施例1の技術案を採用する。
2:正電極
3:負電極
10:反射板
11:導光板
12:下拡散シート
13:下プリズム膜
14:上プリズム膜
15:上拡散シート
16:バックライトランプ
17:バックライトランプの反射板
18:プリズム・ブロック
20:プリズム・バー
Claims (6)
- 液晶ディスプレイのバックライトランプであって、
灯管と、
前記灯管からの光線を反射する反射板と、
前記灯管の外壁に設置され、外部光線の灯管への入射量を減少するための複数のプリズムと、を備え、
前記プリズムは錐体状のプリズム・ブロック、又は、球冠状のプリズム・ブロックであるとともに、少なくとも前記灯管の前記反射板に対向する表面に配置されている液晶ディスプレイのバックライトランプ。 - 前記プリズム・ブロックは三角錐、四角錐、円錐体、又は円錐台であることを特徴とする請求項1に記載のバックライトランプ。
- 前記三角錐或いは円錐体の頂角は50〜160度であることを特徴とする請求項2に記載のバックライトランプ。
- 液晶ディスプレイのバックライトモジュールであって、
バックライトランプと、
導光板と、
バックライトランプの反射板と、を備え、
前記バックライトランプは、前記導光板の側面に設置され、更に灯管と、前記灯管の外壁に設置されて外部光線の灯管への入射量を減少するための複数のプリズムと、を有し、
前記バックライトランプの反射板は、前記バックライトランプの外側に設置され、
前記プリズムは錐体状のプリズム・ブロック、又は、球冠状のプリズム・ブロックであるとともに、少なくとも前記灯管の前記バックライトランプの反射板に対向する表面に配置されている液晶ディスプレイのバックライトモジュール。 - 前記プリズム・ブロックは三角錐、四角錐、円錐体、又は円錐台であることを特徴とする請求項4に記載のバックライトモジュール。
- 前記三角錐又は円錐体の頂角は50〜160度であることを特徴とする請求項5に記載のバックライトモジュール。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710121734.5 | 2007-09-13 | ||
CN2007101217345A CN101387789B (zh) | 2007-09-13 | 2007-09-13 | 液晶显示装置背光灯和背光模组 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009070799A JP2009070799A (ja) | 2009-04-02 |
JP4801114B2 true JP4801114B2 (ja) | 2011-10-26 |
Family
ID=40454240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008141729A Expired - Fee Related JP4801114B2 (ja) | 2007-09-13 | 2008-05-29 | 液晶ディスプレイのバックライトランプ及びバックライトモジュール |
Country Status (4)
Country | Link |
---|---|
US (1) | US7993026B2 (ja) |
JP (1) | JP4801114B2 (ja) |
KR (1) | KR100967561B1 (ja) |
CN (1) | CN101387789B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101839400A (zh) * | 2009-03-19 | 2010-09-22 | 亿光电子工业股份有限公司 | 侧视型发光装置 |
TW201348649A (zh) * | 2012-05-21 | 2013-12-01 | 勝華科技股份有限公司 | 抗眩光燈源 |
US9415126B2 (en) * | 2013-05-23 | 2016-08-16 | Sensor Electronic Technology, Inc. | Reflective transparent optical chamber |
US10648793B2 (en) | 2014-05-15 | 2020-05-12 | Kla-Tencor Corporation | Library expansion system, method, and computer program product for metrology |
CN105987359A (zh) * | 2015-02-05 | 2016-10-05 | 佛山市禾才科技服务有限公司 | 一种全周光led灯的灯管外壳 |
CN112230473A (zh) * | 2020-10-29 | 2021-01-15 | 深圳同兴达科技股份有限公司 | 一种平板电脑显示背光模组用导光管 |
Family Cites Families (18)
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US2366216A (en) * | 1942-02-14 | 1945-01-02 | Dorsey Spencer H | Shield for mercury vapor lamps |
US4991070A (en) * | 1989-07-12 | 1991-02-05 | Herman Miller, Inc. | Sleeve for a light element |
CA2088113C (en) * | 1992-01-27 | 1999-03-30 | Tomohiro Yokota | Light adjusting sheet for a planar lighting device and a planar lighting device and a liquid crystal display using the sheet |
US5363009A (en) * | 1992-08-10 | 1994-11-08 | Mark Monto | Incandescent light with parallel grooves encompassing a bulbous portion |
US5481637A (en) * | 1994-11-02 | 1996-01-02 | The University Of British Columbia | Hollow light guide for diffuse light |
US5971570A (en) * | 1995-11-13 | 1999-10-26 | Simon; Jerome H. | Decorative prismatic lens jacket for a lineal source |
JPH09259626A (ja) * | 1996-03-21 | 1997-10-03 | Sharp Corp | ランプ、液晶バックライト装置および液晶表示装置 |
JPH1091079A (ja) * | 1996-09-17 | 1998-04-10 | Toshiba Corp | バックライト装置及び平面ディスプレイ装置 |
JPH1196822A (ja) * | 1997-09-16 | 1999-04-09 | Toshiba Corp | 面照明装置およびこれを用いた表示装置 |
FR2769382B1 (fr) * | 1997-10-03 | 2000-12-01 | Thomson Multimedia Sa | Systeme d'eclairage arriere pour modulateur electro-optique transmissif utilisant l'effet de polarisation de la lumiere |
US6179443B1 (en) * | 1998-06-30 | 2001-01-30 | Commercial Refrigerator Door Company, Inc. | Fluorescent lamp lens assembly |
US6543912B1 (en) * | 1998-12-04 | 2003-04-08 | Jerome H. Simon | Construction for decorative patterning, distribution of illumination, and flexible projection of linear light sources |
JP2003303572A (ja) * | 2002-04-08 | 2003-10-24 | Ohtsu Tire & Rubber Co Ltd :The | ランプ、ランプユニット、及び発光装置 |
KR20060057612A (ko) * | 2003-08-15 | 2006-05-26 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 자동차 헤드라이트용 램프 |
KR20060125289A (ko) * | 2005-06-02 | 2006-12-06 | 엘지전자 주식회사 | 백라이트 장치에 사용되는 광원 |
KR101150200B1 (ko) | 2005-06-24 | 2012-06-12 | 엘지디스플레이 주식회사 | 표면에 프리즘 패턴을 가지는 형광램프 및 이를 이용하는액정표시장치 모듈 |
KR20070045009A (ko) | 2005-10-26 | 2007-05-02 | 엘지.필립스 엘시디 주식회사 | 집광 시트 및 이를 이용한 액정 표시 장치용 백라이트 모듈 |
US20080122361A1 (en) * | 2006-08-29 | 2008-05-29 | Lapatovich Walter P | Faceted ceramic hid lamp |
-
2007
- 2007-09-13 CN CN2007101217345A patent/CN101387789B/zh not_active Expired - Fee Related
-
2008
- 2008-05-28 KR KR1020080049680A patent/KR100967561B1/ko active IP Right Grant
- 2008-05-29 JP JP2008141729A patent/JP4801114B2/ja not_active Expired - Fee Related
- 2008-05-29 US US12/129,081 patent/US7993026B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2009070799A (ja) | 2009-04-02 |
KR100967561B1 (ko) | 2010-07-05 |
CN101387789A (zh) | 2009-03-18 |
US7993026B2 (en) | 2011-08-09 |
CN101387789B (zh) | 2010-10-06 |
US20090073682A1 (en) | 2009-03-19 |
KR20090028394A (ko) | 2009-03-18 |
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