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1. WO2020134970 - DRIVER CIRCUIT, DISPLAY PANEL DRIVER DEVICE, AND DISPLAY DEVICE

Publication Number WO/2020/134970
Publication Date 02.07.2020
International Application No. PCT/CN2019/123639
International Filing Date 06.12.2019
IPC
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
G09G 2320/0276
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
02Improving the quality of display appearance
0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
0276for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
G09G 3/3607
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
3607for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Applicants
  • 惠科股份有限公司 HKC CORPORATION LIMITED [CN]/[CN]
Inventors
  • 赵文勤 ZHAO, Wenqin
  • 陈伟 CHEN, Wei
Agents
  • 深圳市世纪恒程知识产权代理事务所 CENFO INTELLECTUAL PROPERTY AGENCY
Priority Data
201811587918.524.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DRIVER CIRCUIT, DISPLAY PANEL DRIVER DEVICE, AND DISPLAY DEVICE
(FR) CIRCUIT PILOTE, DISPOSITIF PILOTE DE PANNEAU D'AFFICHAGE ET DISPOSITIF D'AFFICHAGE
(ZH) 驱动电路、显示面板驱动装置和显示装置
Abstract
(EN)
A driver circuit, a display panel driver device, and a display device. The driver circuit comprises a first gamma voltage generator circuit (10), a second gamma voltage generator circuit (20), and a source electrode driver circuit (30). The source electrode driver circuit (30) provided within a display panel (200) is provided to convert a first drive voltage group into multiple analog grayscale signals of which the voltage is greater than a reference voltage and to correspondingly output to M first pixel units (1), and to convert a second drive voltage group into multiple analog grayscale voltage signals of which the voltage is less than the reference voltage and to correspondingly output to N second pixel units (2).
(FR)
L'invention concerne un circuit pilote, un dispositif pilote de panneau d'affichage, et un dispositif d'affichage. Le circuit pilote comprend un premier circuit générateur de tension gamma (10), un deuxième circuit générateur de tension gamma (20), et un circuit pilote d'électrode de source (30). Le circuit pilote d'électrode de source (30) disposé dans un panneau d'affichage (200) sert à convertir un premier groupe de tensions de pilotage en de multiples signaux de niveaux de gris analogiques dont la tension est supérieure à une tension de référence et à les fournir de manière correspondante à M premières unités de pixel (1), et à convertir un deuxième groupe de tensions de pilotage en de multiples signaux de tension de niveaux de gris analogiques dont la tension est inférieure à la tension de référence et à les fournir de manière correspondante à N deuxièmes unités de pixel (2).
(ZH)
一种驱动电路、显示面板驱动装置和显示装置,其中,驱动电路包括第一伽马电压产生电路(10)、第二伽马电压产生电路(20)和源极驱动电路(30),设置在显示面板(200)内部的源极驱动电路(30)设置为将第一驱动电压组转换为电压值大于基准电压值的多个模拟灰阶电压信号并对应输出至M个第一像素单元(1),以及将第二驱动电压组转换为电压值小于基准电压值的多个模拟灰阶电压信号并对应输出至N个第二像素单元(2)。
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