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1. WO2022109845 - METHOD FOR IMAGE DISPLAY IN A DISPLAY APPARATUS, DISPLAY APPARATUS, PERIPHERAL SENSING CIRCUIT, AND PIXEL DRIVING CIRCUIT

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Publication Number WO/2022/109845
Publication Date 02.06.2022
International Application No. PCT/CN2020/131385
International Filing Date 25.11.2020
IPC
G09G 3/32 2016.1
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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
CPC
G09G 2300/0819
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
0809Several active elements per pixel in active matrix panels
0819used for counteracting undesired variations, e.g. feedback or autozeroing
G09G 2300/0842
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
0809Several active elements per pixel in active matrix panels
0842forming a memory circuit, e.g. a dynamic memory with one capacitor
G09G 2300/0861
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
0809Several active elements per pixel in active matrix panels
0842forming a memory circuit, e.g. a dynamic memory with one capacitor
0861with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
G09G 2310/0251
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0243Details of the generation of driving signals
0251Precharge or discharge of pixel before applying new pixel voltage
G09G 2310/0262
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0262The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
G09G 2310/0297
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
0297Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
Applicants
  • BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
  • CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • ZHOU, Hongjun
  • WEI, Feng
  • LIU, Cong
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR IMAGE DISPLAY IN A DISPLAY APPARATUS, DISPLAY APPARATUS, PERIPHERAL SENSING CIRCUIT, AND PIXEL DRIVING CIRCUIT
(FR) PROCÉDÉ D'AFFICHAGE D'IMAGE DANS UN APPAREIL D'AFFICHAGE, APPAREIL D'AFFICHAGE, CIRCUIT DE DÉTECTION PÉRIPHÉRIQUE ET CIRCUIT D'ATTAQUE DE PIXEL
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Abstract
(EN) A method for image display in a display apparatus is provided. The method includes displaying an image in a respective subpixel in an image display phase. In a sensing phase subsequent to the image display phase, the method further includes providing an initial voltage signal (V0) to an anode of a respective light emitting element (LE) in the respective subpixel for a first period of time; allowing the anode of a respective light emitting element (LE) to discharge for a second period of time, upon discontinuation of the initial voltage signal (V0); obtaining a residual voltage signal (V1) at the anode of the respective light emitting element (LE) at an end of the second period of time by a sensing sub-circuit of a respective pixel driving circuit; and transmitting the residual voltage signal (V1) to an integrated circuit.
(FR) L'invention concerne un procédé permettant d'afficher des images dans un appareil d'affichage. Le procédé consiste à afficher une image dans un sous-pixel respectif dans une phase d'affichage d'image. Dans une phase de détection postérieure à la phase d'affichage d'image, le procédé consiste en outre à fournir un signal de tension initiale (V0) à une anode d'un élément électroluminescent (LE) respectif dans le sous-pixel respectif pendant une première période de temps ; à permettre à l'anode d'un élément électroluminescent (LE) respectif de décharger pendant une seconde période de temps lors de l'interruption du signal de tension initiale (V0) ; à obtenir un signal de tension résiduelle (V1) au niveau de l'anode de l'élément électroluminescent (LE) respectif à la fin de la seconde période de temps par un sous-circuit de détection d'un circuit d'attaque de pixel respectif ; et à transmettre le signal de tension résiduelle (V1) à un circuit intégré.
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