TW200643563A - Liquid crystal display and backlight unit - Google Patents
Liquid crystal display and backlight unitInfo
- Publication number
- TW200643563A TW200643563A TW095109267A TW95109267A TW200643563A TW 200643563 A TW200643563 A TW 200643563A TW 095109267 A TW095109267 A TW 095109267A TW 95109267 A TW95109267 A TW 95109267A TW 200643563 A TW200643563 A TW 200643563A
- Authority
- TW
- Taiwan
- Prior art keywords
- liquid crystal
- crystal panel
- light
- crystal display
- light source
- Prior art date
Links
Classifications
-
- 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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
-
- 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
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
- G02B6/0055—Reflecting 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
- G02B6/0066—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
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
In a large-sized liquid crystal display according to this invention, a light source of an optimum condition, which is excellent in efficiency, is disposed at an upper part or a lower part, or both of the upper and the lower part. Light is indirectly irradiated from a space left on a rear side of a liquid crystal panel. For this purpose, on the rear side of the liquid crystal panel, a reflector plate for reflecting the light from the light source to guide the light to the liquid crystal panel is installed with a space kept from the liquid crystal panel. This structure makes it possible to detach and exchange each light source from the large-sized liquid crystal display. Therefore, a lamp of a short lift can be used as each light source. According to this invention, it is possible to realize the large-sized liquid crystal panel which is light in weight, low in power consumption, and low in cost.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005076431A JP4852695B2 (en) | 2005-03-17 | 2005-03-17 | Liquid crystal display and backlight unit |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200643563A true TW200643563A (en) | 2006-12-16 |
Family
ID=36991741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095109267A TW200643563A (en) | 2005-03-17 | 2006-03-17 | Liquid crystal display and backlight unit |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4852695B2 (en) |
TW (1) | TW200643563A (en) |
WO (1) | WO2006098400A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4797161B2 (en) | 2005-07-27 | 2011-10-19 | 国立大学法人東北大学 | Backlight unit for LCD |
JP5147250B2 (en) | 2007-02-01 | 2013-02-20 | パナソニック液晶ディスプレイ株式会社 | Liquid crystal display |
KR101488042B1 (en) * | 2007-05-20 | 2015-01-29 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Design parameters for thin hollow cavity backlights of the light-recycling type |
CN104197247A (en) * | 2007-12-18 | 2014-12-10 | 皇家飞利浦电子股份有限公司 | Illumination system, luminaire and backlighting unit |
CN102057319B (en) | 2008-06-04 | 2014-02-26 | 3M创新有限公司 | Hollow backlight with tilted light source |
KR100959660B1 (en) * | 2008-06-09 | 2010-05-26 | 주식회사 루멘스 | Surface emitting device |
JP6012924B2 (en) * | 2010-12-22 | 2016-10-25 | 大日本印刷株式会社 | Optical module and display device |
JP5678750B2 (en) * | 2011-03-17 | 2015-03-04 | 大日本印刷株式会社 | Optical module and display device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08146224A (en) * | 1994-11-21 | 1996-06-07 | Kyocera Corp | Liquid crystal display device |
JPH095737A (en) * | 1995-06-19 | 1997-01-10 | Canon Inc | Backlight device and liquid crystal display device provided with the back light device |
JPH0915599A (en) * | 1995-06-28 | 1997-01-17 | Opt Kikaku Kaihatsu Kk | Illuminator |
JPH1097806A (en) * | 1996-06-21 | 1998-04-14 | Sharp Corp | Lighting equipment |
JP3036474B2 (en) * | 1997-07-25 | 2000-04-24 | 日本電気株式会社 | Backlight device |
-
2005
- 2005-03-17 JP JP2005076431A patent/JP4852695B2/en active Active
-
2006
- 2006-03-16 WO PCT/JP2006/305237 patent/WO2006098400A1/en active Application Filing
- 2006-03-17 TW TW095109267A patent/TW200643563A/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP4852695B2 (en) | 2012-01-11 |
JP2006260924A (en) | 2006-09-28 |
WO2006098400A1 (en) | 2006-09-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW200643563A (en) | Liquid crystal display and backlight unit | |
TW200643557A (en) | Backlight assembly and liquid crystal display device having the same | |
TW200643537A (en) | Backlight assembly and liquid crystal display device having the same | |
MX2008015110A (en) | Liquid crystal display . | |
TW200725103A (en) | Backlight module and liquid crystal display device | |
TW200609621A (en) | Backlight assembly and liquid crystal display using the same | |
CN102799023A (en) | Liquid crystal display (LCD) device | |
TW200722865A (en) | Liquid crystal display and light guide plate | |
TW200834165A (en) | Backlight module and liquid crystal display using the same | |
SG179169A1 (en) | Lighting device, display device, and television receiver | |
TW200745686A (en) | Backlight unit and liquid crystal display | |
TW200706992A (en) | Liquid crystal display | |
TW200730959A (en) | Planar light source device and liquid crystal display apparatus using the same | |
CN102914910A (en) | Liquid crystal module using direct-type backlight and liquid crystal display | |
TW200700821A (en) | Liquid crystal display | |
TW200801679A (en) | Backlight module and liquid crystal display device using the same | |
TW200508703A (en) | Back light module | |
TWI264594B (en) | Back light module | |
TW200609599A (en) | A direct backlight module | |
TW200834180A (en) | Back light module for liquid crystal display | |
TW200722841A (en) | Monolithically formed reflection device and backlight unit and LCD device with the reflection device | |
SG151208A1 (en) | Lcd display with led backlight optimized for minimum notebook computer dimensions | |
TW200728858A (en) | Backlight unit and liquid crystal display module provided with the same | |
TW200630686A (en) | Backlight module and flat panel display | |
TW200705005A (en) | Liquid crystal display |