KR100564183B1 - 액티브 매트릭스형 표시 장치 - Google Patents
액티브 매트릭스형 표시 장치 Download PDFInfo
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- KR100564183B1 KR100564183B1 KR1020040034400A KR20040034400A KR100564183B1 KR 100564183 B1 KR100564183 B1 KR 100564183B1 KR 1020040034400 A KR1020040034400 A KR 1020040034400A KR 20040034400 A KR20040034400 A KR 20040034400A KR 100564183 B1 KR100564183 B1 KR 100564183B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels
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- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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- G—PHYSICS
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- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
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- G09G2310/0262—The 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
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
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- G09G2320/043—Preventing or counteracting the effects of ageing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
Description
Claims (6)
- 공급 전류량에 따라 동작하는 표시 소자와, 영상 입력 단자로부터 공급되는 입력 신호에 대응한 구동 전류를 상기 표시 소자에 공급하는 구동 트랜지스터와, 한쪽의 단자가 상기 구동 트랜지스터의 게이트 전극과 접속하여, 상기 입력 신호에 대응한 상기 구동 트랜지스터의 소스 전극 및 상기 게이트 전극과의 전위차를 유지 가능한 캐패시터와, 상기 구동 트랜지스터의 상기 게이트 전극과 드레인 전극과의 사이에서 직렬로 접속되는 스위치를 각각 포함하고, 매트릭스 형상으로 배열된 복수의 표시 화소와,상기 표시 화소의 행마다 설치되고, 상기 스위치의 제어 단자에 접속되는 복수의 주사선과, 상기 주사선을 통해서 상기 스위치를 제어하는 제어 신호를 출력하는 주사선 구동 회로를 갖고,상기 주사선 구동 회로의 각 주사 신호의 출력부와 이 출력부에 대응하는 주사선과의 사이에 각각 버퍼 회로가 설치되고,상기 버퍼 회로는, 출력하는 신호 파형이 온 상태로부터 오프 상태로 이행할 때의 초기 전위로부터 오프 전위로의 천위 시간과, 상기 주사선의 말단측에서의 신호 파형의 천위 시간이 거의 동일하게 되도록 파형 정형하는 것을 특징으로 하는 액티브 매트릭스형 표시 장치.
- 복수의 주사선과 복수의 신호선이 교차하여 형성된 화소 배열 영역과,상기 복수의 주사선과 복수의 신호선과의 교차부 근방에 각각 형성된 화소부와,화소 배열 영역의 밖의 영역에, 상기 복수의 주사선에 접속되어 상기 복수의 화소부에 대하여 행 방향으로 순차적으로 주사 신호를 공급하도록 형성된 주사선 구동 회로와,상기 복수의 신호선에 접속되고 상기 복수의 화소부의 각 열에 신호를 공급하도록 형성된 신호선 구동 회로를 갖고상기 주사선 구동 회로의 각 주사 신호의 출력부와 이 출력부에 대응하는 주사선과의 사이에 각각 버퍼 회로가 설치되고,적어도 1개의 상기 버퍼 회로로부터 출력하는 주사 신호 파형의 상승 또는 하강 시간은, 상기 대응하는 주사선에 구형파 신호가 공급되었을 때 이 주사선의 말단측에 나타나는 시상수의 영향을 받은 신호 파형의 상승 또는 하강 시간과 거의 동일하거나 그것보다도 긴 시간으로 되도록, 상기 버퍼 회로가 설계되어 있는 것을 특징으로 하는 액티브 매트릭스형 표시 장치.
- 제2항에 있어서,상기 버퍼 회로는, 출력하는 주사 신호 파형의 상승 또는 하강이 직선적이 되도록 정전류 회로를 포함하는 것을 특징으로 하는 액티브 매트릭스형 표시 장치.
- 제3항에 있어서,상기 버퍼 회로는, 출력하는 주사 신호 파형의 상승 또는 하강이 직선적이 되도록 정전류 회로를 포함하고, 상기 버퍼 회로의 출력부에는, 출력 전압을 안정화하는 정전압 회로가 접속되어 있는 것을 특징으로 하는 액티브 매트릭스형 표시 장치.
- 복수의 주사선과 복수의 신호선이 교차하여 형성된 화소 배열 영역과,상기 복수의 주사선과 복수의 신호선과의 교차부 근방에 각각 형성된 화소부로서, 전원 라인에 소스 전극이 접속된 구동 트랜지스터와, 상기 구동 트랜지스터의 게이트·소스 전극 사이에 접속된 축적 용량과, 상기 구동 트랜지스터의 게이트·드레인 전극 사이에 직렬로 접속된 적어도 제1, 제2 스위치 트랜지스터와, 상기 구동 트랜지스터의 게이트 전극에 대하여, 신호선으로부터의 신호를 공급하기 위한 화소 스위치와, 상기 구동 트랜지스터의 드레인 전극이 제3 스위치 트랜지스터를 통하여 접속된 발광 소자를 갖는 화소부와,상기 복수의 주사선에 접속되어 상기 복수의 화소부에 대하여 행 방향으로 순차적으로 주사 신호를 공급하도록 형성된 주사선 구동 회로와,화소 배열 영역의 밖의 영역에, 상기 복수의 신호선에 접속되어 상기 복수의 화소부의 각 열에 신호를 공급하도록 형성된 신호선 구동 회로와,상기 주사선 구동 회로의 각 주사 신호의 출력부와 이 출력부에 대응하는 주사선과의 사이에 각각 설치된 버퍼 회로를 구비하며,상기 버퍼 회로는, 이 버퍼 회로로부터 출력하는 주사 신호 파형의 상승 또 는 하강 시간은, 상기 대응하는 주사선에 구형파 신호가 공급되었을 때 이 주사선의 말단측에 나타나는 시상수의 영향을 받은 신호 파형의 상승 또는 하강 시간과 거의 동일하거나 그것보다도 긴 시간으로 되도록 구성되어 있는 액티브 매트릭스형 표시 장치.
- 복수의 주사선과 복수의 신호선이 교차하여 형성된 화소 배열 영역과,상기 복수의 주사선과 복수의 신호선과의 교차부 근방에 각각 형성된 화소부로서, 전원 라인에 소스 전극이 접속된 구동 트랜지스터와, 상기 구동 트랜지스터의 게이트·소스 전극 사이에 접속된 축적 용량과, 상기 구동 트랜지스터의 게이트·드레인 전극 사이에 직렬로 접속된 적어도 제1, 제2 스위치 트랜지스터와, 상기 구동 트랜지스터의 드레인 전극과 신호선과의 사이에 접속된 화소 스위치와, 상기 구동 트랜지스터의 드레인 전극이 제3 스위치 트랜지스터를 통하여 접속된 발광 소자와, 상기 화소 스위치, 상기 제1, 제2, 제3 스위치 트랜지스터를 각각 독립하여 온/오프 제어하기 위한 제1, 제2, 제3 및 제4 주사선과,상기 복수의 주사선에 접속되어 상기 복수의 화소부에 대하여 행 방향으로 순차적으로 주사 신호를 공급하도록 형성된 주사선 구동 회로와,상기 복수의 신호선에 접속되어 상기 복수의 화소부의 각 열에 신호를 공급하도록 형성된 신호선 구동 회로와,상기 주사선 구동 회로의 각 주사 신호의 출력부와 이 출력부에 대응하는 주사선과의 사이에 각각 설치된 버퍼 회로를 구비하고,상기 버퍼 회로는, 이 버퍼 회로로부터 출력하는 주사 신호 파형의 상승 또는 하강 시간은, 상기 대응하는 주사선에 구형파 신호가 공급되었을 때 이 주사선의 말단측에 나타나는 시상수의 영향을 받은 신호 파형의 상승 또는 하강 시간과 거의 동일하거나 그것보다도 긴 시간으로 되도록 구성되어 있는 액티브 매트릭스형 표시 장치.
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KR (1) | KR100564183B1 (ko) |
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CN101501754B (zh) * | 2006-09-15 | 2012-01-18 | 夏普株式会社 | 显示装置 |
JP4674589B2 (ja) * | 2007-02-05 | 2011-04-20 | ソニー株式会社 | 固体撮像装置および撮像装置 |
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KR100884450B1 (ko) * | 2007-11-08 | 2009-02-19 | 삼성모바일디스플레이주식회사 | 유기전계발광 표시장치 |
KR101470677B1 (ko) * | 2010-12-23 | 2014-12-08 | 엘지디스플레이 주식회사 | 유기발광다이오드 표시장치 |
KR102241440B1 (ko) | 2013-12-20 | 2021-04-16 | 엘지디스플레이 주식회사 | 유기발광 표시장치 |
CN108777130A (zh) * | 2018-06-21 | 2018-11-09 | 京东方科技集团股份有限公司 | 像素电路及显示装置 |
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SG129288A1 (en) | 2007-02-26 |
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TW200426733A (en) | 2004-12-01 |
KR20040099162A (ko) | 2004-11-26 |
CN1551081A (zh) | 2004-12-01 |
TWI251183B (en) | 2006-03-11 |
US20050007307A1 (en) | 2005-01-13 |
CN100380426C (zh) | 2008-04-09 |
US7286109B2 (en) | 2007-10-23 |
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