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1. WO2020155888 - DRIVE CIRCUIT AND DRIVE METHOD FOR SWITCHABLE GLASS, AND SWITCHABLE GLASS APPARATUS

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Publication Number WO/2020/155888
Publication Date 06.08.2020
International Application No. PCT/CN2019/125283
International Filing Date 13.12.2019
IPC
G09G 3/36 2006.1
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
H02M 3/28 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
CPC
G02F 1/13306
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
13306Circuit arrangements or driving methods for the control of single liquid crystal cells
G02F 1/13452
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
1345Conductors connecting electrodes to cell terminals
13452Conductors connecting driver circuitry and terminals of panels
G02F 1/137
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
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
G02F 1/13725
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
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
13725based on guest-host interaction
G06F 3/02
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
02Input arrangements using manually operated switches, e.g. using keyboards or dials
G09G 2320/0626
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
06Adjustment of display parameters
0626for control of overall brightness
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
Inventors
  • 王永波 WANG, Yongbo
  • 孟晨 MENG, Chen
Agents
  • 北京市柳沈律师事务所 LIU, SHEN & ASSOCIATES
Priority Data
201910108654.903.02.2019CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DRIVE CIRCUIT AND DRIVE METHOD FOR SWITCHABLE GLASS, AND SWITCHABLE GLASS APPARATUS
(FR) CIRCUIT D'ATTAQUE ET PROCÉDÉ D'ATTAQUE DESTINÉS À UN VERRE COMMUTABLE, ET APPAREIL DE VERRE COMMUTABLE
(ZH) 调光玻璃的驱动电路及驱动方法、调光玻璃装置
front page image
Abstract
(EN) A drive circuit (100) for a switchable glass (200), a switchable glass apparatus (10), and a drive method. The drive circuit (100) for the switchable glass (200). The drive circuit comprises: a controller (110) of which an input end (INT11) receives a control instruction, the controller (110) being configured to output a voltage control signal at an output end (OUT2) of the controller according to the control instruction; and a voltage regulator circuit (120) of which a control input end (INT12) is connected to the output end (OUT2) of the controller (110) and a power source input end (INT13) is connected to a first power source (130) and a voltage output end (OUT1) is connected to a voltage input end (INT1) of the switchable glass (200), the voltage regulator circuit being configured to generate an output voltage signal (S1) at the voltage output end (OUT1) of the voltage regulator circuit according to a voltage control signal. The output voltage signal (S1) adjusts the transmittance of the switchable glass (200) by controlling the degree of deflection of liquid crystal molecules in the switchable glass (200). The drive circuit (100) can adjust the transmittance of the switchable glass (200) so as to achieve the adjustment of the brightness of the switchable glass (200).
(FR) La présente invention concerne un circuit d'attaque (100) destiné à un verre commutable (200), un appareil de verre commutable (10), et un procédé d'attaque. La présente invention concerne également un circuit d'attaque (100) destiné à un verre commutable (200). Le circuit d'attaque comprend : un dispositif de commande (110) dont une extrémité d'entrée (INT11) reçoit une instruction de commande, le dispositif de commande (110) étant configuré pour émettre un signal de commande de tension à une extrémité de sortie (OUT2) du dispositif de commande en fonction de l'instruction de commande ; et un circuit régulateur de tension (120) dont une extrémité d'entrée de commande (INT12) est connectée à l'extrémité de sortie (OUT2) du dispositif de commande (110) et une extrémité d'entrée de source d'alimentation (INT13) est connectée à une première source d'alimentation (130) et une extrémité de sortie de tension (OUT1) est connectée à une extrémité d'entrée de tension (INT1) du verre commutable (200), le circuit régulateur de tension étant configuré pour générer un signal de tension de sortie (S1) à l'extrémité de sortie de tension (OUT1) du circuit régulateur de tension en fonction d'un signal de commande de tension. Le signal de tension de sortie (S1) règle la transmittance du verre commutable (200) par commande du degré de déviation des molécules de cristaux liquides dans le verre commutable (200). Le circuit d'attaque (100) peut régler la transmittance du verre commutable (200) de façon à obtenir le réglage de la luminosité du verre commutable (200).
(ZH) 一种调光玻璃(200)的驱动电路(100)、调光玻璃装置(10)和驱动方法。调光玻璃(200)的驱动电路(100)，包括：控制器(110)，其输入端(INT11)接收控制指令，并且被配置为根据控制指令在其输出端(OUT2)输出电压控制信号；以及电压调节电路(120)，其控制输入端(INT12)与控制器(110)的输出端(OUT2)连接，电源输入端(INT13)与第一电源(130)连接，其电压输出端(OUT1)与调光玻璃(200)的电压输入端(INT1)连接，并且被配置为根据电压控制信号在其电压输出端(OUT1)产生输出电压信号(S1)，输出电压信号(S1)通过控制调光玻璃(200)中的液晶分子的偏转程度，来调整调光玻璃(200)的透光度。驱动电路(100)可以调整调光玻璃(200)的透光率，实现对调光玻璃(200)的亮度的调节。
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