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1. WO2013010507 - BACKLIGHT SOURCE AND DISPLAY DEVICE

Publication Number WO/2013/010507
Publication Date 24.01.2013
International Application No. PCT/CN2012/078977
International Filing Date 20.07.2012
IPC
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
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
CPC
G02B 6/0028
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
0013Means for improving the coupling-in of light from the light source into the light guide
0023provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
0028Light guide, e.g. taper
G02B 6/0055
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
005provided by one optical element, or plurality thereof, placed on the light output side of the light guide
0055Reflecting element, sheet or layer
G02B 6/0073
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
0066characterised by the light source being coupled to the light guide
0073Light emitting diode [LED]
G02B 6/0078
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
0075Arrangements of multiple light guides
0078Side-by-side arrangements, e.g. for large area displays
Applicants
  • 北京京东方光电科技有限公司 BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN] (AllExceptUS)
  • 布占场 BU, Zhanchang [CN]/[CN] (UsOnly)
  • 王伯长 WANG, Bochang [CN]/[CN] (UsOnly)
  • 王飞 WANG, Fei [CN]/[CN] (UsOnly)
  • 孙彦军 SUN, Yanjun [CN]/[CN] (UsOnly)
  • 邓毅 DENG, Yi [CN]/[CN] (UsOnly)
  • 华广胜 HUA, Guangsheng [CN]/[CN] (UsOnly)
Inventors
  • 布占场 BU, Zhanchang
  • 王伯长 WANG, Bochang
  • 王飞 WANG, Fei
  • 孙彦军 SUN, Yanjun
  • 邓毅 DENG, Yi
  • 华广胜 HUA, Guangsheng
Agents
  • 北京市柳沈律师事务所 LIU, SHEN & ASSOCIATES
Priority Data
201120259561.521.07.2011CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BACKLIGHT SOURCE AND DISPLAY DEVICE
(FR) SOURCE DE RÉTRO-ÉCLAIRAGE ET DISPOSITIF D'AFFICHAGE
(ZH) 背光源及显示装置
Abstract
(EN)
A backlight source and display device for reducing the number of LED backlight sources and conserving production cost, while preventing dark areas from appearing on a display, thereby ensuring effects. The backlight source comprises a first light guide plate (22) and at least one LED assembly (20) disposed at one side of the first light guide plate (22). The LED assembly (20) comprises a second light guide plate (201), at least one LED (202), and a reflection film (203), the at least one LED (202) being disposed on at least one side of the second light guide plate (201), and the reflection film (203) being disposed on at least one side of the second light guide plate (201).
(FR)
L'invention concerne une source de rétro-éclairage et un dispositif d'affichage destinés à réduire le nombre de sources de rétro-éclairage à DEL et à maintenir le coût de production, tout en empêchant l'apparition de zones sombres sur un affichage, de sorte à assurer les effets du rétro-éclairage. La source de rétro-éclairage selon l'invention comprend une première plaque guide de lumière (22) et au moins un ensemble DEL (20) disposé sur un côté de la première plaque guide de lumière (22). Ledit ensemble (20) comprend une deuxième plaque guide de lumière (201), au moins une DEL (202) et un film de réflexion (203), ladite DEL (202) au moins étant disposée sur au moins un coté de la deuxième plaque guide de lumière (201), le film de réflexion (203) étant disposé sur au moins un côté de la deuxième plaque guide de lumière (201).
(ZH)
一种背光源及显示装置,用以减少背光源中LED的数量,节约成本,同时避免显示画面出现暗区,保证显示效果。该背光源包括第一导光板(22)和至少一个发光二极管组件(20),所述发光二极管组件(20)位于所述第一导光板(22)的一侧。所述发光二极管组件(20)包括第二导光板(201)、至少一个发光二极管(202)和反射膜(203)其中,所述至少一个发光二极管(202)位于所述第二导光板(201)的至少一侧,所述反射膜(203)位于所述第二导光板(201)的至少一侧。
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