KR950001585A - 평면표시장치 및 그 검사방법 - Google Patents

평면표시장치 및 그 검사방법 Download PDF

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KR950001585A
KR950001585A KR1019940013791A KR19940013791A KR950001585A KR 950001585 A KR950001585 A KR 950001585A KR 1019940013791 A KR1019940013791 A KR 1019940013791A KR 19940013791 A KR19940013791 A KR 19940013791A KR 950001585 A KR950001585 A KR 950001585A
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output
substrate
inspection
pixel
pixels
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요시가즈 하자마
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오가 노리오
소니 가부시기가이샤
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/02—Detection or location of defective auxiliary circuits, e.g. defective refresh counters
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
    • G11C29/48—Arrangements in static stores specially adapted for testing by means external to the store, e.g. using direct memory access [DMA] or using auxiliary access paths
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S345/00—Computer graphics processing and selective visual display systems
    • Y10S345/904—Display with fail/safe testing feature

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

본 발명은 수평주사회로의 제1의 검사용 출력과, 수직주사회로의 제 2 의 검사용 출력을 복합하는 논리회로와, 이 논리회로를 통하여 복합화된 복합검사출력을 출력하는 복합검사출력단자가 구동기판에 형성되어 있는 평면표시장치에 관한 것이다. 본 발명의 다른 평면표시장치는 수평주사회로의 제 1 의 입력단자를 수직주사회로의 검사용 출력단자로서 사용하는 동시에, 수직주사회로의 제 2 의 입력단자를 수평주사회로의 검사용 출력단자로서 사용하는 스위치회로를 가진다.

Description

평면표시장치 및 그 검사방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명의 일〉에 관한 액정표시장치에 사용하는 복합검사단자를 가지는 액정구동회로의 개략도.
제2A도~제2D도는 검사용 출력파형을 나타낸 그래프.

Claims (9)

  1. 기판과, 상기 기판상에 매트릭스 배열의 형태로 형성된 복수의 화소로 이루어지는 화소영역과, 상기 기판상에 형성되고, 선택펄스를 출력하여, 상기 화소영역의 화소의 열을 직렬로 선택하는 수직주사회로와, 상기 기판상에 형성되고, 선택펄스를 출력하여, 상기 화소영역의 화소의 행을 직렬로 선택하여 상기 화소영역의 화소의 선택된 열에 화상신호를 제공하는 수평주사회로와, 상기 기판상에 형성되고, 상기 수직주사회로 및 수평주사회로로부터 출력된 출력신호를 복합하는 논리회로와, 상기 기판상에 형성되고, 상기 논리회로를 통하여 복합화된 검사용 출력신호를 출력하는 검사출력단자를 가지는 것을 특징으로 하는 평면표시장치.
  2. 기판과, 상기 기판상에 매트릭스 배열의 형태로 형성된 복수의 화소로 이루어지는 화소영역과, 상기 기판상에 형성되고, 선택펄스를 출력하여, 상기 화소영역의 화소의 열을 직렬로 선택하고, 제 1 의 입력단자를 가지는 수직주사회로와, 상기 기판상에 형성되고, 선택펄스를 출력하여, 상기 화소영역의 화소의 행을 직렬로 선택하여 상기 화소영역의 화소의 선택된 열에 화상신호를 제공하는 제 2 의 입력단자를 가지는 수평주사회로와, 제 1 의 입력단자를 상기 수평주사회로의 출력단자로서 사용되는 동시에, 제 2 의 입력단자를 상기 수직주사회로의 출력단자로서 사용하는 스위치수단을 가지는 것을 특징으로 하는 평면표시장치.
  3. 제 1 항에 있어서, 상기 화소영역의 화소는 화소전극과 이 화소전극을 구동하는 스위치소자로 이루어지는 것을 특징으로 하는 평면표시장치.
  4. 제 2 항에 있어서, 상기 화소영역의 화소는 화소전극과 이 화소전극을 구동하는 스위치소자로 이루어지는 것을 특징으로 하는 평면표시장치.
  5. 수평주사회로와 수직주사회로와 화소구동회로가 형성되고, 매트릭스배열에 있어서 복수의 화소를 구동하는 액티브매트릭스구동기판의 검사방법에 있어서, 수평주사회로의 제 1 의 검사용 출력과, 수직주사회로의 제 2 의 검사용 출력을 논리회로를 통하여 복합하고, 논리회로를 통하여 복합화된 제 3 의 복합검사출력의 파형에 따라서, 수평주사회로 및 수직주사회로의 검사를 행하는 것을 특징으로 하는 액티브매트릭스 구동기판의 검사방법.
  6. 제 5 항에 있어서, 제 1 의 검사용 출력과 제 2 의 검사용 출력은 상기 액티브매트릭스구동기판상에 형성된 논리회로를 통하여 복합하는 것을 특징으로 하는 액티브매트릭스구동기판의 검사방법.
  7. 제 5 항에 있어서, 제 1 의 검사용 출력과 제 2 의 검사용 출력은 상기 액티브매트릭스구동기판의 외부에 형성된 논리회로를 통하여 복합하는 것을 특징으로 하는 액티브매트릭스구동기판의 검사방법.
  8. 수평주사회로와 수직주사회로와 화소구동회로가 형성되어 있는 평면표시장치를 위한 액티브매트릭스구동기판에 있어서, 수평주사회로의 제 1 의 출력과, 수직주사회로의 제 2 의 출력을 논리회로와, 상기 논리회로를 통하여 복합화된 복합검사출력을 출력하는 복합검사출력 단자가 형성되어 있는 것을 특징으로 하는 액티브매트릭스구동기판.
  9. 수평주사회로와 수직주사회로와 화소구동회로가 형성되어 있는 평면표시장치를 위한 액티브매트릭스구동기판에 있어서, 수평주사회로의 제 1 의 입력단자를 수직주사회로의 검사용 출력단자로서 사용하는 동시에, 수직주사회로의 제 2 의 입력단자를 수평주사회로의 검사용 출력단자로서 사용하는 스위치수단을 가지는 것을 특징으로 하는 액티브매트릭스구동기판.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940013791A 1993-06-21 1994-06-18 평면표시장치및그검사방법 KR100319062B1 (ko)

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JP14956093A JP3312423B2 (ja) 1993-06-21 1993-06-21 平面表示装置、アクティブマトリクス基板および検査方法
JP93-149,560 1993-06-21

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KR100319062B1 KR100319062B1 (ko) 2002-04-06

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US (1) US5644331A (ko)
EP (1) EP0629868B1 (ko)
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DE69428163D1 (de) 2001-10-11
KR100319062B1 (ko) 2002-04-06
JP3312423B2 (ja) 2002-08-05
EP0629868A1 (en) 1994-12-21
JPH0713515A (ja) 1995-01-17
US5644331A (en) 1997-07-01
EP0629868B1 (en) 2001-09-05
DE69428163T2 (de) 2002-06-20

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