JP5295478B2 - 照明装置及びそれを用いた液晶表示装置 - Google Patents
照明装置及びそれを用いた液晶表示装置 Download PDFInfo
- Publication number
- JP5295478B2 JP5295478B2 JP2004313658A JP2004313658A JP5295478B2 JP 5295478 B2 JP5295478 B2 JP 5295478B2 JP 2004313658 A JP2004313658 A JP 2004313658A JP 2004313658 A JP2004313658 A JP 2004313658A JP 5295478 B2 JP5295478 B2 JP 5295478B2
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent tube
- light
- illumination
- prism
- bent portion
- 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
- 238000005286 illumination Methods 0.000 title claims description 28
- 239000004973 liquid crystal related substance Substances 0.000 title description 3
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02F1/133507—Films for enhancing the luminance
-
- 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
- G02F1/133606—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)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
2:蛍光管
3:光透過板
4:照光範囲
5:前部筺体
6:反射シート
7:蛍光管保持筺体
8:スペーサー
9:プリズムシート
Claims (2)
- 筺体(1)に固定された蛍光管(2)からの光を透過する光透過板(3)を有する照明装置であって、前記蛍光管(2)は少なくとも1箇所以上曲げることにより、発光部が平行となされ、前記曲げ部分の少なくとも一部が照光面(4)内に配置され、前記光透過板(3)と前記蛍光管(2)の間に、プリズムの頂角が蛍光管方向になるように配置されたプリズムシート(9)を有し、前記プリズムシート(9)は前記蛍光管(2)の曲げ部分だけを覆い、且つ前記蛍光管(2)の平行する発光部は覆わないように配置されたことを特徴とする照明装置。
- 前記プリズムシート(9)のプリズムの頂辺方向を前記蛍光管軸方向と平行になるように配設されたことを特徴とする請求項1に記載の照明装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004313658A JP5295478B2 (ja) | 2004-10-28 | 2004-10-28 | 照明装置及びそれを用いた液晶表示装置 |
TW094136122A TWI334949B (en) | 2004-10-28 | 2005-10-17 | Lighting device |
US11/261,115 US7384169B2 (en) | 2004-10-28 | 2005-10-27 | Lighting device with U-shaped fluorescent tube |
CNB200510116048XA CN100419537C (zh) | 2004-10-28 | 2005-10-27 | 照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004313658A JP5295478B2 (ja) | 2004-10-28 | 2004-10-28 | 照明装置及びそれを用いた液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006127878A JP2006127878A (ja) | 2006-05-18 |
JP5295478B2 true JP5295478B2 (ja) | 2013-09-18 |
Family
ID=36261562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004313658A Expired - Fee Related JP5295478B2 (ja) | 2004-10-28 | 2004-10-28 | 照明装置及びそれを用いた液晶表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7384169B2 (ja) |
JP (1) | JP5295478B2 (ja) |
CN (1) | CN100419537C (ja) |
TW (1) | TWI334949B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2010296605A1 (en) * | 2009-09-16 | 2012-04-05 | Sharp Kabushiki Kaisha | Lighting device, display apparatus, and television receiver |
JP5318717B2 (ja) * | 2009-09-29 | 2013-10-16 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4748546A (en) * | 1987-02-02 | 1988-05-31 | Allied-Signal Inc. | Fluorescent backlighting unit |
JPH0734416Y2 (ja) * | 1988-10-26 | 1995-08-02 | シャープ株式会社 | バックライト |
JPH03114093A (ja) * | 1989-09-28 | 1991-05-15 | Toshiba Lighting & Technol Corp | 照明装置 |
US5128783A (en) * | 1990-01-31 | 1992-07-07 | Ois Optical Imaging Systems, Inc. | Diffusing/collimating lens array for a liquid crystal display |
US5262880A (en) * | 1990-04-26 | 1993-11-16 | Ois Optical Imaging Systems, Inc. | Night vision goggle compatible liquid crystal display device |
US5161041A (en) * | 1990-04-26 | 1992-11-03 | Ois Optical Imaging Systems, Inc. | Lighting assembly for a backlit electronic display including an integral image splitting and collimating means |
JPH0588173A (ja) * | 1991-09-27 | 1993-04-09 | Toshiba Lighting & Technol Corp | 照明器具 |
JPH0593908A (ja) * | 1991-09-30 | 1993-04-16 | Sony Corp | 液晶表示装置 |
JPH06273761A (ja) * | 1993-03-17 | 1994-09-30 | Sony Corp | バックライトユニット |
JPH0772476A (ja) * | 1993-09-02 | 1995-03-17 | Harrison Denki Kk | 照明装置 |
US5648827A (en) * | 1995-06-22 | 1997-07-15 | Rockwell International Corporation | Backlighting system for liquid crystal displays having a non-planar fluorescent lamp |
JPH10283818A (ja) * | 1997-04-02 | 1998-10-23 | Taiho Ind Co Ltd | 面発光体及びその輝度均一化方法 |
US6100952A (en) * | 1997-06-04 | 2000-08-08 | Korry Electronics Co. | NVG-compatible AMLCD backlight having a ridged prismatic TIR with an embedded diffuser doped with an IR absorbing dye |
KR20010101367A (ko) | 1999-08-24 | 2001-11-14 | 가부시키가이샤 쯔지덴 | 프리즘렌즈용 보호필름 |
JP2002049324A (ja) | 2000-07-31 | 2002-02-15 | Nippon Seiki Co Ltd | バックライト装置 |
CN2484581Y (zh) * | 2001-07-26 | 2002-04-03 | 廖骏吉 | 光罩反射装置 |
JP4133420B2 (ja) * | 2002-03-26 | 2008-08-13 | シャープ株式会社 | バックライト及び液晶表示装置 |
TWI288832B (en) * | 2002-11-11 | 2007-10-21 | Samsung Electronics Co Ltd | Prism sheet and fabrication method thereof and liquid crystal display device employing the same |
JP4371675B2 (ja) * | 2003-03-12 | 2009-11-25 | Necライティング株式会社 | 面光源、バックライト装置及び液晶ディスプレイパネル |
US7213933B2 (en) * | 2004-01-02 | 2007-05-08 | Entire Technology Co., Ltd. | Direct type backlight module of diffuser plate and its manufacturing method thereof |
TWI364600B (en) * | 2004-04-12 | 2012-05-21 | Kuraray Co | An illumination device an image display device using the illumination device and a light diffusing board used by the devices |
-
2004
- 2004-10-28 JP JP2004313658A patent/JP5295478B2/ja not_active Expired - Fee Related
-
2005
- 2005-10-17 TW TW094136122A patent/TWI334949B/zh active
- 2005-10-27 US US11/261,115 patent/US7384169B2/en active Active
- 2005-10-27 CN CNB200510116048XA patent/CN100419537C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1752822A (zh) | 2006-03-29 |
TWI334949B (en) | 2010-12-21 |
JP2006127878A (ja) | 2006-05-18 |
CN100419537C (zh) | 2008-09-17 |
TW200634405A (en) | 2006-10-01 |
US20060092632A1 (en) | 2006-05-04 |
US7384169B2 (en) | 2008-06-10 |
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