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1. WO2007139282 - PLAQUE DE DIFFUSION LUMINEUSE MULTICOUCHE ET AFFICHEUR À CRISTAUX LIQUIDES LA COMPRENANT

Numéro de publication WO/2007/139282
Date de publication 06.12.2007
N° de la demande internationale PCT/KR2007/001790
Date du dépôt international 13.04.2007
CIB
G02B 5/02 2006.01
GPHYSIQUE
02OPTIQUE
BÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES
5Eléments optiques autres que les lentilles
02Diffuseurs; Eléments afocaux
CPC
G02B 13/20
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
20Soft-focus objectives
G02B 5/02
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
G02B 5/0242
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
0236the diffusion taking place within the volume of the element
0242by means of dispersed particles
G02B 5/0268
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0268characterized by the fabrication or manufacturing method
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
Déposants
  • LG CHEM, LTD. [KR/KR]; 20 Yoido-dong, Youngdungpo-gu Seoul 150-721, KR (AllExceptUS)
  • YANG, Hyun-Seok [KR/KR]; KR (UsOnly)
  • LEE, Bong-Keun [KR/KR]; KR (UsOnly)
  • KIM, Seo-Hwa [KR/KR]; KR (UsOnly)
  • PARK, Jae-Chan [KR/KR]; KR (UsOnly)
  • LEE, Ju-Hwa [KR/KR]; KR (UsOnly)
Inventeurs
  • YANG, Hyun-Seok; KR
  • LEE, Bong-Keun; KR
  • KIM, Seo-Hwa; KR
  • PARK, Jae-Chan; KR
  • LEE, Ju-Hwa; KR
Mandataires
  • JIN, Hee-Dong ; DANA International Patent and Law Firm 5th Floor, BYC Bldg. 648-1, Yeoksam-dong Gangnam-gu Seoul 135-080, KR
Données relatives à la priorité
10-2006-004867930.05.2006KR
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) MULTI-LAYERED LIGHT DIFFUSION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING THE SAME
(FR) PLAQUE DE DIFFUSION LUMINEUSE MULTICOUCHE ET AFFICHEUR À CRISTAUX LIQUIDES LA COMPRENANT
Abrégé
(EN)
Disclosed herein is a multi-layered light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same.
(FR)
Plaque de diffusion lumineuse multicouche, élaborée par coextrusion de couche transparente comprenant une résine thermoplastique transparente amorphe et de couche de diffusion lumineuse à résine thermoplastique transparente amorphe et particules transparentes, donnant un processus d'élaboration simple et efficace, et assurant d'excellentes transmissivité et diffusivité lumineuses, une brillance élevée et une uniformité de brillance élevée, ce qui améliore les caractéristiques d'angle de vision. Également, afficheur à cristaux liquides comprenant ladite plaque.
Dernières données bibliographiques dont dispose le Bureau international