TW200506805A - A substrate and a display device incorporating the same - Google Patents

A substrate and a display device incorporating the same

Info

Publication number
TW200506805A
TW200506805A TW093119613A TW93119613A TW200506805A TW 200506805 A TW200506805 A TW 200506805A TW 093119613 A TW093119613 A TW 093119613A TW 93119613 A TW93119613 A TW 93119613A TW 200506805 A TW200506805 A TW 200506805A
Authority
TW
Taiwan
Prior art keywords
substrate
terminal
switching element
same
display device
Prior art date
Application number
TW093119613A
Other languages
Chinese (zh)
Other versions
TWI296791B (en
Inventor
Christopher James Brown
Original Assignee
Sharp Kk
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 Sharp Kk filed Critical Sharp Kk
Publication of TW200506805A publication Critical patent/TW200506805A/en
Application granted granted Critical
Publication of TWI296791B publication Critical patent/TWI296791B/en

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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (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)
  • Thin Film Transistor (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

A substrate (1) comprises a switching element (8) having a first terminal for connection to a picture element electrode (11), a second terminal connected to a data line (Si), and a third terminal for receiving an enable signal for selectively enabling the switching element and thereby connecting the first terminal to the second terminal. The substrate (1) is further provided with test means (18) integrated on the substrate, for obtaining information about the operation of the switching element. The test means may make two measurements of the capacitance of the data line, with the switching element being in supposedly different states for each measurement. The invention may particularly be employed in an active matrix substrate. It enables faulty switching elements to be detected at an early stage in the fabrication of the substrate.
TW093119613A 2003-07-01 2004-06-30 A substrate, a combination apparatus, a display device, a method of testing a switching element of a substrate, and a method of testing an active matrix substrate TWI296791B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0315330A GB2403581A (en) 2003-07-01 2003-07-01 A substrate and a display device incorporating the same

Publications (2)

Publication Number Publication Date
TW200506805A true TW200506805A (en) 2005-02-16
TWI296791B TWI296791B (en) 2008-05-11

Family

ID=27676399

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093119613A TWI296791B (en) 2003-07-01 2004-06-30 A substrate, a combination apparatus, a display device, a method of testing a switching element of a substrate, and a method of testing an active matrix substrate

Country Status (4)

Country Link
JP (1) JP2005024558A (en)
KR (1) KR100697130B1 (en)
GB (1) GB2403581A (en)
TW (1) TWI296791B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4207017B2 (en) 2004-08-10 2009-01-14 セイコーエプソン株式会社 Electro-optical device substrate and inspection method thereof, and electro-optical device and electronic apparatus
JP4432829B2 (en) 2004-12-21 2010-03-17 セイコーエプソン株式会社 Electro-optical device substrate and inspection method thereof, and electro-optical device and electronic apparatus
KR101066495B1 (en) * 2005-04-07 2011-09-21 엘지디스플레이 주식회사 A liquid crystal display device and a method for testing the same
KR102097438B1 (en) * 2019-05-29 2020-04-06 삼성디스플레이 주식회사 Display device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670937A1 (en) * 1990-12-20 1992-06-26 Thomson Lcd MATRIX ELECTROOPTIC SCREEN WITH ACTIVE CONTROL WITH INTEGRATED TEST SYSTEM.
US5377030A (en) * 1992-03-30 1994-12-27 Sony Corporation Method for testing active matrix liquid crystal by measuring voltage due to charge in a supplemental capacitor
JP2758103B2 (en) * 1992-04-08 1998-05-28 シャープ株式会社 Active matrix substrate and manufacturing method thereof
TW331599B (en) * 1995-09-26 1998-05-11 Toshiba Co Ltd Array substrate for LCD and method of making same
JP4276373B2 (en) * 2000-12-07 2009-06-10 セイコーエプソン株式会社 Electro-optical device inspection circuit, electro-optical device, and electronic apparatus

Also Published As

Publication number Publication date
TWI296791B (en) 2008-05-11
GB2403581A (en) 2005-01-05
JP2005024558A (en) 2005-01-27
GB0315330D0 (en) 2003-08-06
KR100697130B1 (en) 2007-03-20
KR20050004080A (en) 2005-01-12

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees