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1. WO2008047501 - BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY

Publication Number WO/2008/047501
Publication Date 24.04.2008
International Application No. PCT/JP2007/062756
International Filing Date 26.06.2007
IPC
F21S 2/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/-F21S10/113
F21V 5/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
5Refractors for light sources
04of lens shape
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
CPC
G02B 3/0037
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
0006Arrays
0037characterized by the distribution or form of lenses
G02B 3/005
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
0006Arrays
0037characterized by the distribution or form of lenses
005arranged along a single direction only, e.g. lenticular sheets
G02B 5/0231
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
021the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
0231the surface having microprismatic or micropyramidal shape
G02B 5/0278
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0273characterized by the use
0278used in transmission
G02F 1/133606
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
1336Illuminating devices
133602Direct backlight
133606including a specially adapted diffusing, scattering or light controlling members
G02F 2001/133607
Applicants
  • シャープ株式会社 SHARP KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 鎌田 健太郎 KAMADA, Kentaro (UsOnly)
Inventors
  • 鎌田 健太郎 KAMADA, Kentaro
Agents
  • 佐野 静夫 SANO, Shizuo
Priority Data
2006-28579020.10.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY
(FR) UNITE DE RETROECLAIRAGE ET AFFICHAGE A CRISTAUX LIQUIDES
(JA) バックライトユニットおよび液晶表示装置
Abstract
(EN)
In a backlight unit (52) comprising fluorescent tubes (41) and a diffusion unit (1) overlapped each other, optical materials (OD) with different transmittances are contained in a holding layer (23) positioned between a diffusion plate (2) and a lenticular lens layer (3).
(FR)
Selon l'invention, dans une unité de rétroéclairage (52) comprenant des tubes fluorescents (41) et une unité de diffusion (1) se chevauchant, des matériaux optiques (OD) à transmittances différentes sont contenus dans une couche de maintien (23) disposée entre une plaque de diffusion (2) et une couche à verres lenticulaires (3).
(JA)
 複数の蛍光管(41)と、拡散ユニット(1)とを重ねるようにして含んでいるバックライトユニット(52)において、拡散板(2)とレンチキュラーレンズ層(3)との間に位置する挟持層(23)にて、透過率の異なる複数の光学材(OD)が含まれている。
Also published as
Latest bibliographic data on file with the International Bureau