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1. WO2019054640 - DISPLAY APPARATUS

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Publication Number WO/2019/054640
Publication Date 21.03.2019
International Application No. PCT/KR2018/009082
International Filing Date 09.08.2018
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
CPC
G09G 2300/0452
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
04Structural and physical details of display devices
0439Pixel structures
0452Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
G09G 2300/0823
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
0823used to establish symmetry in driving, e.g. with polarity inversion
G09G 2300/0828
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
0828forming a digital to analog [D/A] conversion circuit
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
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 3/3614
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
3611Control of matrices with row and column drivers
3614Control of polarity reversal in general
Applicants
  • 삼성전자주식회사 SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventors
  • 임성진 LIM, Sung-Jin
  • 김지혜 KIM, Ji Hye
Agents
  • 특허법인 세림 SELIM INTELLECTUAL PROPERTY LAW FIRM
Priority Data
10-2017-011653612.09.2017KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) DISPLAY APPARATUS
(FR) DISPOSITIF D'AFFICHAGE
(KO) 디스플레이 장치
front page image
Abstract
(EN) A display apparatus comprises: a liquid crystal panel; and a source driver for outputting an image signal to the liquid crystal panel. The source driver may comprise: a digital-to-analog converter for converting digital image data into an image signal having a normal polarity and an image signal having a reverse polarity; multiple multiplexers, each of which receives an image signal having a normal polarity and an image signal having a reverse polarity, and outputs, without any change, the image signal having a normal polarity and the image signal having a reverse polarity, or alternately outputs the image signal having a normal polarity and the image signal having a reverse polarity; and a reverse control unit for outputting control signals to the multiple multiplexers through multiple output terminals connected to the multiple multiplexers, respectively. Also, each of the multiple multiplexers may output, without any change, an image signal having a normal polarity and an image signal having a reverse polarity in response to a first control signal of the reverse control unit, and may alternately output an image signal having a normal polarity and an image signal having a reverse polarity in response to a second control signal of the reverse control unit.
(FR) L'invention concerne un appareil d'affichage comprenant : un panneau à cristaux liquides; et un pilote de source destiné à émettre en sortie un signal d'image vers le panneau à cristaux liquides. Le pilote de source peut comprendre : un convertisseur numérique-analogique destiné à convertir des données d'image numérique en un signal d'image présentant une polarité normale et un signal d'image présentant une polarité inverse; des multiplexeurs multiples recevant un signal d'image présentant une polarité normale et un signal d'image présentant une polarité inverse et émettant en sortie, sans aucun changement, le signal d'image présentant une polarité normale et le signal d'image présentant une polarité inverse ou émettant en sortie alternativement le signal d'image présentant une polarité normale et le signal d'image présentant une polarité inverse; ainsi qu'une unité de commande inverse destinée à émettre en sortie des signaux de commande vers les multiplexeurs multiples, par des bornes de sortie multiples raccordées respectivement aux multiplexeurs multiples. En outre, chaque multiplexeur peut émettre en sortie, sans aucun changement, un signal d'image présentant une polarité normale et un signal d'image présentant une polarité inverse en réponse à un premier signal de commande de l'unité de commande inverse, et peut émettre en sortie alternativement un signal d'image présentant une polarité normale et un signal d'image présentant une polarité inverse en réponse à un deuxième signal de commande de l'unité de commande inverse.
(KO) 디스플레이 장치는 액정 패널; 및 액정 패널에 영상 신호를 출력하는 소스 드라이버를 포함한다. 소스 드라이버는 디지털 영상 데이터를 정상 극성의 영상 신호와 반전 극성의 영상 신호로 변환하는 디지털-아날로그 변환기와, 그 각각이 정상 극성의 영상 신호와 반전 극성의 영상 신호를 수신하고, 정상 극성의 영상 신호와 반전 극성의 영상 신호를 그대로 출력하거나 교차 출력하는 복수의 멀티플렉서와, 복수의 멀티플렉서와 각각 연결되는 복수의 출력 단자를 통하여 복수의 멀티플렉서 각각으로 제어 신호를 출력하는 반전 제어부를 포함할 수 있다. 또한, 복수의 멀티플렉서 각각은 반전 제어부의 제1 제어 신호에 응답하여 정상 극성의 영상 신호와 반전 극성의 영상 신호를 그대로 출력하고, 반전 제어부의 제2 제어 신호에 응답하여 정상 극성의 영상 신호와 반전 극성의 영상 신호를 교차 출력할 수 있다.
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