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1. WO2020181967 - TRANSPARENT LIQUID CRYSTAL DISPLAY PANEL AND DRIVING METHOD THEREFOR, AND TRANSPARENT LIQUID CRYSTAL DISPLAY COMPRISING SAME

Publication Number WO/2020/181967
Publication Date 17.09.2020
International Application No. PCT/CN2020/075937
International Filing Date 20.02.2020
IPC
G02F 1/1335 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
G02F 1/1343 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
1343Electrodes
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G02F 1/1335
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
G02F 1/133504
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
133504Diffusing, scattering, diffracting elements
G02F 1/134336
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
1343Electrodes
134309characterised by their geometrical arrangement
134336Matrix
G09G 3/36
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
Inventors
  • 李忠孝 LI, Zhongxiao
Agents
  • 北京银龙知识产权代理有限公司 DRAGON INTELLECTUAL PROPERTY LAW FIRM
Priority Data
201910180507.211.03.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) TRANSPARENT LIQUID CRYSTAL DISPLAY PANEL AND DRIVING METHOD THEREFOR, AND TRANSPARENT LIQUID CRYSTAL DISPLAY COMPRISING SAME
(FR) ÉCRAN D'AFFICHAGE À CRISTAUX LIQUIDES TRANSPARENT ET SON PROCÉDÉ DE COMMANDE, ET DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES LE COMPRENANT
(ZH) 透明液晶显示面板及其驱动方法,以及包括它的透明液晶显示器
Abstract
(EN)
Provided in the present disclosure is a transparent liquid crystal display panel, comprising a first substrate and a second substrate that are arranged opposite to each other, wherein the first substrate is configured to transmit light incident therein by mean of reflection; a liquid crystal layer located between the first substrate and the second substrate; a first grating layer located between the liquid crystal layer and the first substrate, the first grating layer comprising a plurality of first gratings arranged in an array; a first electrode layer located between the first grating layer and the liquid crystal layer, the first electrode layer comprising a plurality of first electrodes arranged in an array; and a second electrode layer located between the liquid crystal layer and the second substrate. The orthographic projection of each of the first gratings on the first substrate at least partially covers a region between orthographic projections of two adjacent first electrodes on the first substrate. The liquid crystal layer is configured to form a plurality of liquid crystal prisms arranged in an array when voltages are applied to the plurality of first electrodes and the second electrode layer respectively, so that light emitted from the plurality of liquid crystal prisms is reflected on the second substrate and then returns to the plurality of liquid crystal prisms.
(FR)
La présente invention concerne un écran d'affichage à cristaux liquides transparent, comprenant un premier substrat et un second substrat qui sont agencés à l'opposé l'un de l'autre, le premier substrat étant configuré pour transmettre la lumière incidente à l'intérieur de celui-ci par réflexion ; une couche de cristaux liquides située entre le premier substrat et le second substrat ; une première couche de réseau de diffraction située entre la couche de cristaux liquides et le premier substrat, la première couche de réseau comprenant une pluralité de premiers réseaux disposés dans un réseau ; une première couche d'électrode située entre la première couche de réseau et la couche de cristaux liquides, la première couche d'électrode comprenant une pluralité de premières électrodes disposées dans un réseau ; et une seconde couche d'électrode située entre la couche de cristaux liquides et le second substrat. La projection orthographique de chacun des premiers réseaux sur le premier substrat recouvre au moins partiellement une région entre des projections orthographiques de deux premières électrodes adjacentes sur le premier substrat. La couche de cristaux liquides est configurée pour former une pluralité de prismes à cristaux liquides disposés dans un réseau lorsque des tensions sont appliquées à la pluralité de premières électrodes et à la seconde couche d'électrode respectivement, de telle sorte que la lumière émise à partir de la pluralité de prismes à cristaux liquides est réfléchie sur le second substrat puis revient à la pluralité de prismes à cristaux liquides.
(ZH)
本公开提供一种透明液晶显示面板,包括相对设置的第一基板和第二基板,第一基板配置为使入射到其内的光通过反射进行传输;位于第一基板与第二基板之间的液晶层;位于液晶层与第一基板之间的第一光栅层,第一光栅层包括阵列排布的多个第一光栅;位于第一光栅层与液晶层之间的第一电极层,第一电极层包括阵列排布的多个第一电极;位于液晶层与第二基板之间的第二电极层,每一个第一光栅在所述第一基板上的正投影至少部分地覆盖两个相邻的第一电极在所述第一基板上的正投影之间的区域,液晶层配置为在分别向所述多个第一电极和第二电极层施加电压时形成阵列排布的多个液晶棱镜,使从多个液晶棱镜出射的光在第二基板上发生反射后回到多个液晶棱镜中。
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