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1. WO2019214397 - PIXEL DRIVE CIRCUIT AND DRIVE METHOD, AND DISPLAY APPARATUS

Publication Number WO/2019/214397
Publication Date 14.11.2019
International Application No. PCT/CN2019/082552
International Filing Date 12.04.2019
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 2300/0809
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
G09G 2300/0833
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
0833forming a linear amplifier or follower
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 2300/0876
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
0876Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation 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
Applicants
  • 京东方科技集团股份有限公司 BOE TECHNOLOGY GROUP CO., LTD. [CN]/[CN]
Inventors
  • 施蓉蓉 SHI, Rongrong
  • 杨盛际 YANG, Shengji
  • 刘伟 LIU, Wei
Agents
  • 北京中博世达专利商标代理有限公司 BEIJING ZBSD PATENT&TRADEMARK AGENT LTD.
Priority Data
201810435167.908.05.2018CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PIXEL DRIVE CIRCUIT AND DRIVE METHOD, AND DISPLAY APPARATUS
(FR) CIRCUIT ET PROCÉDÉ D'ATTAQUE DE PIXEL, ET APPAREIL D'AFFICHAGE
(ZH) 像素驱动电路及驱动方法、显示装置
Abstract
(EN) A pixel drive circuit and drive method, and a display apparatus, the pixel drive circuit comprising: a drive unit (20); a boost sub-circuit (10) that is connected to the drive unit (20) and that is configured to raise a voltage outputted by an output end (20a) of the drive unit (20), wherein the boost sub-circuit (10) comprises a switch unit (101) and a capacitor unit (102); and a light-emitting unit (30) that is connected to the boost sub-circuit (10) and that is configured to receive the raised voltage. The described pixel drive circuit may meet high brightness requirements of the light-emitting unit (30).
(FR) L'invention concerne un circuit et un procédé d'attaque de pixel ainsi qu'un appareil d'affichage, le circuit d'attaque de pixel comprenant : une unité d'attaque (20) ; un sous-circuit d'amplification (10) connecté à l'unité d'attaque (20) et configuré pour élever une tension délivrée par une extrémité de sortie (20a) de l'unité d'attaque (20), le sous-circuit d'amplification (10) comportant une unité commutateur (101) et une unité condensateur (102) ; et une unité électroluminescente (30) connectée au sous-circuit d'amplification (10) et configurée pour recevoir la tension élevée. Le circuit d'attaque de pixel ci-décrit peut répondre aux exigences de forte luminosité de l'unité électroluminescente (30).
(ZH) 一种像素驱动电路及驱动方法、显示装置,该像素驱动电路包括:驱动单元(20);与驱动单元(20)连接的升压子电路(10),配置为升高驱动单元(20)的输出端(20a)输出的电压,其中,升压子电路(10)包括开关单元(101)和电容单元(102);以及与升压子电路(10)连接的发光单元(30),配置为接收升高的电压。该像素驱动电路能够满足发光单元(30)的高亮度需求。
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