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1. WO2020140770 - PRIVACY PROTECTION FILM, MANUFACTURING METHOD THEREFOR, AND DISPLAY MODULE

Publication Number WO/2020/140770
Publication Date 09.07.2020
International Application No. PCT/CN2019/126967
International Filing Date 20.12.2019
IPC
G02F 1/1335 2006.1
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
G02F 1/13357 2006.1
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
G02F 1/133509
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
133509Filters, e.g. light shielding masks
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 1/133607
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
133607the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
  • 北京京东方光电科技有限公司 BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 朱贺玲 ZHU, Heling
  • 桑建 SANG, Jian
  • 禹璐 YU, Lu
  • 程鹏飞 CHENG, Pengfei
  • 张功涛 ZHANG, Gongtao
  • 孙海威 SUN, Haiwei
  • 郝东佳 HAO, Dongjia
Agents
  • 北京天昊联合知识产权代理有限公司 TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS
Priority Data
201910002791.402.01.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PRIVACY PROTECTION FILM, MANUFACTURING METHOD THEREFOR, AND DISPLAY MODULE
(FR) FILM DE PROTECTION DE CONFIDENTIALITÉ, SON PROCÉDÉ DE FABRICATION, ET MODULE D'AFFICHAGE
(ZH) 防窥膜及其制作方法、显示模组
Abstract
(EN)
The present disclosure provides a privacy protection film, a manufacturing method therefor, and a display module. The privacy protection film comprises a plurality of transmissive regions and a plurality of privacy protection regions alternately arranged in a direction perpendicular to a thickness direction of the privacy protection film. At least one of the plurality of privacy protection regions has a preset structure, and the preset structure enables light incident on the at least one privacy protection region from a first side of the thickness direction of the privacy protection film to pass through the at least one privacy protection region and be reflected back to the first side. Thus, the privacy protection film can increase light energy utilization of film materials, and resolves the issue of low light transmittance of privacy protection films in the related art.
(FR)
L'invention concerne un film de protection de confidentialité, son procédé de fabrication, et un module d’affichage. Le film de protection de confidentialité comprend une pluralité de régions de transmission et une pluralité de régions de protection de confidentialité disposées en alternance dans une direction perpendiculaire à une direction d'épaisseur du film de protection de confidentialité. Au moins l'une de la pluralité de régions de protection de confidentialité possède une structure prédéfinie, et la structure prédéfinie permet à la lumière incidente, sur la ou les régions de protection de confidentialité d'un premier côté de la direction d'épaisseur du film de protection de confidentialité, de traverser la ou les régions de protection de confidentialité et d'être réfléchie vers le premier côté. Ainsi, le film de protection de confidentialité peut augmenter l'utilisation d'énergie lumineuse de matériaux du film, et résout le problème de faible transmittance de la lumière de films de protection de confidentialité dans l'état de la technique associé.
(ZH)
本公开提供了一种防窥膜及其制作方法、显示模组。防窥膜包括多个透射区和多个防窥区,且多个透射区和多个防窥区在垂直于防窥膜的厚度的方向上交替设置,其中:该多个防窥区中的至少一个防窥区具有设定结构,设定结构使得从防窥膜的厚度方向的第一侧入射到该至少一个防窥区的光线能够经该至少一个防窥区反射回该第一侧;因此,该防窥膜能够增加膜材对光能的利用率,解决了相关技术的防窥膜的透光率低的问题。
Also published as
Latest bibliographic data on file with the International Bureau