Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020191912 - LIGHT GUIDE PLATE AND BACKLIGHT MODULE

Publication Number WO/2020/191912
Publication Date 01.10.2020
International Application No. PCT/CN2019/087970
International Filing Date 22.05.2019
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
G02B 6/0045
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
0035provided on the surface of the light guide or in the bulk of it
0045by shaping at least a portion of the light guide
G02F 1/133615
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
133615Edge-illuminating devices, i.e. illuminating from the side
Applicants
  • 武汉华星光电技术有限公司 WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 钱丽琼 QIAN, Liqiong
  • 梅新东 MEI, Xindong
Agents
  • 深圳翼盛智成知识产权事务所(普通合伙) ESSEN PATENT & TRADEMARK AGENCY
Priority Data
201910243859.828.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LIGHT GUIDE PLATE AND BACKLIGHT MODULE
(FR) PLAQUE DE GUIDAGE DE LUMIÈRE ET MODULE DE RÉTROÉCLAIRAGE
(ZH) 导光板及背光模组
Abstract
(EN)
A light guide plate (201, 301, 400, 500, 600), comprising a light guide plate body and a through hole (206), wherein the light guide plate body further comprises a first light-exiting surface (205, 605); the first light-exiting surface (205,605) is a side wall surrounding the through hole (206), and the first light-exiting surface (205, 605) is arranged as a special-shaped surface (505); the special-shaped surface (505) may specifically be arranged as an oblique plane, a quadric surface or a free-form surface. After light emitted by a light-emitting source (203) passes through the light guide plate (201, 301, 400, 500, 600), more light is incident on the through hole (206) and a digging area of a display panel. Meanwhile, the first light-exiting surface (205, 605) may also be adjusted to ensure consistent light intensity in a display area.
(FR)
L'invention concerne une plaque de guidage de lumière (201, 301, 400, 500, 600), comprenant un corps de plaque de guidage de lumière et un trou traversant (206), le corps de plaque de guidage de lumière comprenant en outre une première surface de sortie de lumière (205, 605) ; la première surface de sortie de lumière (205, 605) est une paroi latérale entourant le trou traversant (206), et la première surface de sortie de lumière (205, 605) est agencée sous la forme d'une surface de forme spéciale (505) ; la surface de forme spéciale (505) peut spécifiquement être agencée sous la forme d'un plan oblique, d'une surface quadrique ou d'une surface de forme libre. Après que la lumière émise par une source d'émission de lumière (203) passe à travers la plaque de guidage de lumière (201, 301, 400, 500, 600), davantage de lumière est incidente sur le trou traversant (206) et une zone de creusement d'un écran d'affichage. Pendant ce temps, la première surface de sortie de lumière (205, 605) peut également être ajustée pour garantir une intensité de lumière cohérente dans une zone d'affichage.
(ZH)
一种导光板(201,301,400,500,600),包括导光板本体及通孔(206),导光板本体还包括第一出光面(205,605),第一出光面(205,605)为环绕通孔(206)的侧壁,第一出光面(205,605)设置为异形面(505),异形面(505)具体的可设置为斜平面、二次曲面及自由曲面。发光源(203)发出的光线经过导光板(201,301,400,500,600)后,更多的光线入射到显示面板的通孔(206)及挖孔区域中,同时,还可对第一出光面(205,605)进行调整,保证显示区内光线强度的一致性。
Also published as
Latest bibliographic data on file with the International Bureau