JPS6468723A - Active matrix display panel - Google Patents

Active matrix display panel

Info

Publication number
JPS6468723A
JPS6468723A JP62225811A JP22581187A JPS6468723A JP S6468723 A JPS6468723 A JP S6468723A JP 62225811 A JP62225811 A JP 62225811A JP 22581187 A JP22581187 A JP 22581187A JP S6468723 A JPS6468723 A JP S6468723A
Authority
JP
Japan
Prior art keywords
picture element
display
short
picture
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62225811A
Other languages
Japanese (ja)
Inventor
Tetsuo Iwaki
Tomoyuki Kawashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62225811A priority Critical patent/JPS6468723A/en
Publication of JPS6468723A publication Critical patent/JPS6468723A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136259—Repairing; Defects
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/506—Repairing, e.g. with redundant arrangement against defective part
    • G02F2201/508—Pseudo repairing, e.g. a defective part is brought into a condition in which it does not disturb the functioning of the device

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To decrease the number of defective picture elements for bright display and to improve the picture quality of the display panel substantially by plating picture element electrodes for picture elements including a short-circuit defect with a metallic film selectively and putting the short-circuit defective image elements in dark display operation at all times. CONSTITUTION:Picture element electrodes 10 for picture element display, a driving line electrode 30 provided in common to the picture element electrodes 10 and 10, and a display driving element 50 connected between the driving line electrode 30 and respective picture element electrodes 10 are provided on a substrate 1. When it is found that there is a picture element with a short-circuit defect between a picture element electrode 10 and the driving line electrode 30 in the substrate of the display panel which perform bright display at the time of applying a display voltage to the picture element electrode 10, the driving line electrode 30 is used as a plating electrode to perform the electrolytic plating of the substrate 1, thereby plating the picture element electrode 10s for the picture element with the short-circuit defect S2 is plated selectively with the metallic film 60. Consequently, the short-circuit defective picture element is put in the dark display state at all times to improve the display picture quality of the display panel to an extent where the short-circuit defective picture element can not be sensed.
JP62225811A 1987-09-09 1987-09-09 Active matrix display panel Pending JPS6468723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62225811A JPS6468723A (en) 1987-09-09 1987-09-09 Active matrix display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62225811A JPS6468723A (en) 1987-09-09 1987-09-09 Active matrix display panel

Publications (1)

Publication Number Publication Date
JPS6468723A true JPS6468723A (en) 1989-03-14

Family

ID=16835165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62225811A Pending JPS6468723A (en) 1987-09-09 1987-09-09 Active matrix display panel

Country Status (1)

Country Link
JP (1) JPS6468723A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404072A2 (en) * 1989-06-19 1990-12-27 Nec Corporation Active matrix liquid crystal display panel and method for compensating defective pixel in active matrix liquid crystal display panel
EP0461417A2 (en) * 1990-05-16 1991-12-18 Hosiden Corporation Liquid crystal display element and method for treating defective pixels therein
EP0501837A2 (en) * 1991-03-01 1992-09-02 Sharp Kabushiki Kaisha A liquid crystal display device and a method of compensating for a defect of a liquid crystal panel of the liquid crystal display device
EP0506454A2 (en) * 1991-03-27 1992-09-30 Sharp Kabushiki Kaisha Liquid crystal display device, method of correcting defective pixels, and defective-pixel correcting apparatus used therein

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404072A2 (en) * 1989-06-19 1990-12-27 Nec Corporation Active matrix liquid crystal display panel and method for compensating defective pixel in active matrix liquid crystal display panel
EP0404072A3 (en) * 1989-06-19 1991-10-02 Nec Corporation Active matrix liquid crystal display panel and method for compensating defective pixel in active matrix liquid crystal display panel
EP0461417A2 (en) * 1990-05-16 1991-12-18 Hosiden Corporation Liquid crystal display element and method for treating defective pixels therein
EP0501837A2 (en) * 1991-03-01 1992-09-02 Sharp Kabushiki Kaisha A liquid crystal display device and a method of compensating for a defect of a liquid crystal panel of the liquid crystal display device
US5280374A (en) * 1991-03-01 1994-01-18 Sharp Kabushiki Kaisha Liquid crystal display device and method of compensating for a defect
EP0506454A2 (en) * 1991-03-27 1992-09-30 Sharp Kabushiki Kaisha Liquid crystal display device, method of correcting defective pixels, and defective-pixel correcting apparatus used therein
US5267066A (en) * 1991-03-27 1993-11-30 Sharp Kabushiki Kaisha Liquid crystal display device, method of correcting defective pixels, and defective-pixel correcting apparatus used therein

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