Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020135240 - BACKLIGHT MODULE, LIGHT GUIDE PLATE, AND PREPARATION METHOD FOR CONDUCTIVE HYDROGEL OF LIGHT GUIDE PLATE

Publication Number WO/2020/135240
Publication Date 02.07.2020
International Application No. PCT/CN2019/126820
International Filing Date 20.12.2019
IPC
G02B 6/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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
C08F 220/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
220Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
04Acids; Metal salts or ammonium salts thereof
06Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
C08F 222/38
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
222Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
36Amides or imides
38Amides
C08J 3/075
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
02Making solutions, dispersions or lattices by other methods than by solution, emulsion or suspension polymerisation techniques
03in aqueous media
075Macromolecular gels
G02B 1/06
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
06made of fluids in transparent cells
G02B 6/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
G02B 6/0033
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
0001specially adapted for lighting devices or systems
0011the light guides being planar or of plate-like form
0033Means for improving the coupling-out of light from the light guide
Applicants
  • 深圳TCL新技术有限公司 SHENZHEN TCL NEW TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 季洪雷 JI, Honglei
  • 邓天应 DENG, Tianying
  • 强科文 QIANG, Kewen
  • 陈细俊 CHEN, Xijun
Agents
  • 深圳市君胜知识产权代理事务所(普通合伙) JOHNSON INTELLECTUAL PROPERTY AGENCY(SHENZHEN)
Priority Data
201811603495.126.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BACKLIGHT MODULE, LIGHT GUIDE PLATE, AND PREPARATION METHOD FOR CONDUCTIVE HYDROGEL OF LIGHT GUIDE PLATE
(FR) MODULE DE RÉTROÉCLAIRAGE, PLAQUE DE GUIDAGE DE LUMIÈRE ET PROCÉDÉ DE PRÉPARATION D'HYDROGEL CONDUCTEUR DE PLAQUE DE GUIDAGE DE LUMIÈRE
(ZH) 背光模组、导光板及其导电水凝胶的制备方法
Abstract
(EN)
A backlight module, a light guide plate (10), and a preparation method for conductive hydrogel of the light guide plate (10). The main body of the light guide plate (10) is an optical glass material. A cavity (20) is provided in the light guide plate (10), and is filled with conductive hydrogel (21). Either end of the light guide plate (10) is provided with an electrode electrically connected to the conductive hydrogel (21) in the cavity (20). When not electrified, the conductive hydrogel (21) is in a liquid state, and when electrified, the conductive hydrogel (21) in the cavity (20) changes to a gel state. Microcrystal particles are added to the conductive hydrogel (21) to improve a light refection function and a light diffuse reflection function of the light guide plate (10). The light guide plate (10) can improve the light refection function and the light diffuse reflection function of the backlight module, so as to allow more light rays to penetrate through the light guide plate (10) to improve the luminous efficacy. The addition of quantum dots or fluorescent powder to the conductive hydrogel (21) can further increase the color gamut of backlight, such that a liquid crystal display device has a better effect.
(FR)
Module de rétroéclairage, plaque de guidage de lumière (10), et procédé de préparation d'hydrogel conducteur de la plaque de guidage de lumière (10). Le corps principal de la plaque de guidage de lumière est un matériau de verre optique. Une cavité (20) est disposée dans la plaque de guidage de lumière (10), et est remplie d'hydrogel conducteur (21). Chaque extrémité de la plaque de guidage de lumière (10) est pourvue d'une électrode connectée électriquement à l'hydrogel conducteur (21) dans la cavité (20). Lorsqu'il n'est pas électrifié, l'hydrogel conducteur (21) est à l'état liquide, et lorsqu'il est électrifié, l'hydrogel conducteur (21) dans la cavité (20) change à un état de gel. Des particules de microcristal sont ajoutées à l'hydrogel conducteur (21) pour améliorer une fonction de réflexion de lumière et une fonction de réflexion diffuse de lumière de la plaque de guidage de lumière (10). La plaque de guidage de lumière (10) peut améliorer la fonction de réflexion de lumière et la fonction de réflexion diffuse de lumière du module de rétroéclairage, de façon à permettre à un plus grand nombre de rayons de lumière de pénétrer à travers la plaque de guidage de lumière (10) pour améliorer l'efficacité lumineuse. L'ajout de points quantiques ou de poudre fluorescente à l'hydrogel conducteur (21) peut en outre augmenter la gamme de couleurs du rétroéclairage, de telle sorte qu'un dispositif d'affichage à cristaux liquides a un meilleur effet.
(ZH)
一种背光模组、导光板(10)及其导电水凝胶的制备方法,导光板(10)主体为光学玻璃材料,导光板(10)内置空腔(20),空腔(20)内填充导电水凝胶(21),导光板(10)两端设置有与空腔(20)内导电水凝胶(21)电连接的电极;导电水凝胶(21)未通电时为液体形态,当空腔(20)内的导电水凝胶(21)通电后变成胶体形态。导电水凝胶(21)中添加有微小晶体颗粒,以增强导光板(10)对于光的反射和漫反射功能。导光板(10)能够增强背光模组对光的反射和漫反射功能,让更多光线穿透导光板(10)从而提高光效,导电水凝胶(21)中添加量子点或荧光粉能够进一步提高背光的色域,使液晶显示装置的效果更好。
Also published as
Latest bibliographic data on file with the International Bureau