EP2151810A3 - Viewing device with secured matrix screen - Google Patents

Viewing device with secured matrix screen Download PDF

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Publication number
EP2151810A3
EP2151810A3 EP09165124A EP09165124A EP2151810A3 EP 2151810 A3 EP2151810 A3 EP 2151810A3 EP 09165124 A EP09165124 A EP 09165124A EP 09165124 A EP09165124 A EP 09165124A EP 2151810 A3 EP2151810 A3 EP 2151810A3
Authority
EP
European Patent Office
Prior art keywords
electronic
screen
signal
display device
fault detection
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.)
Withdrawn
Application number
EP09165124A
Other languages
German (de)
French (fr)
Other versions
EP2151810A2 (en
Inventor
Laurent Canal
Patrice Eudeline
Jean-Marie Multon
Vincent Vieira
Gérard Voisin
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Publication of EP2151810A2 publication Critical patent/EP2151810A2/en
Publication of EP2151810A3 publication Critical patent/EP2151810A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

Le domaine technique de l'invention est celui des dispositifs de visualisation sécurisés. Ceux-ci comportent au moins un écran matriciel, une électronique de commande de l'écran, un circuit de détection de panne et des moyens électroniques de gestion du dispositif de visualisation, l'écran étant composé de pixels disposés en lignes et en colonnes, les lignes de pixels étant commandées par une carte électronique « drivers » comportant des moyens électroniques agencés de façon à générer un premier signal électronique représentatif du bon ou du mauvais fonctionnement de ladite carte électronique « drivers », le circuit de détection de panne agencé de façon à générer, à partir du premier signal, un second signal traité par les moyens électroniques de gestion du dispositif de visualisation. Le dispositif de visualisation selon l'invention comporte un circuit analogique de coupure électronique de l'image commandé par le circuit de détection de panne de façon que, lorsque le premier signal électronique est représentatif du mauvais fonctionnement de la carte, le circuit analogique de coupure provoque l'effacement de l'image sur l'écran, l'écran étant alors uniformément monochrome. On peut, à cette fin, agir sur la tension de commande de la contre-électrode.

Figure imgaf001
The technical field of the invention is that of secure display devices. These comprise at least one matrix screen, a screen control electronics, a fault detection circuit and electronic management means of the display device, the screen being composed of pixels arranged in rows and columns, the pixel lines being controlled by an electronic card "drivers" comprising electronic means arranged to generate a first electronic signal representative of the good or the malfunction of said electronic card "drivers", the fault detection circuit arranged so generating, from the first signal, a second signal processed by the electronic management means of the display device. The display device according to the invention comprises an electronic circuit for electronic shutdown of the image controlled by the fault detection circuit so that, when the first electronic signal is representative of the malfunction of the card, the analog circuit break causes the image to be erased on the screen, the screen then being uniformly monochrome. For this purpose, it is possible to act on the control voltage of the counterelectrode.
Figure imgaf001
EP09165124A 2008-08-08 2009-07-10 Viewing device with secured matrix screen Withdrawn EP2151810A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804538A FR2934917B1 (en) 2008-08-08 2008-08-08 VISUALIZATION DEVICE WITH SECURED MATRIX SCREEN.

Publications (2)

Publication Number Publication Date
EP2151810A2 EP2151810A2 (en) 2010-02-10
EP2151810A3 true EP2151810A3 (en) 2010-06-23

Family

ID=40139235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09165124A Withdrawn EP2151810A3 (en) 2008-08-08 2009-07-10 Viewing device with secured matrix screen

Country Status (3)

Country Link
US (1) US20100033465A1 (en)
EP (1) EP2151810A3 (en)
FR (1) FR2934917B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105574906A (en) * 2015-12-21 2016-05-11 苏州长风航空电子有限公司 Preset-pixel-based efficient cabin picture design method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920908B1 (en) * 2007-09-07 2012-07-27 Thales Sa VISUALIZATION DEVICE COMPRISING A SECURED DISPLAY LIQUID CRYSTAL DISPLAY
FR2984578B1 (en) * 2011-12-16 2013-12-20 Thales Sa TWO-SECOND LIQUID CRYSTAL SECURED VISUALIZATION DEVICE
CN105979092B (en) * 2016-05-13 2020-06-05 腾讯科技（深圳）有限公司 Abnormity monitoring method and device
CN111445452B (en) * 2020-03-23 2022-03-01 Oppo（重庆）智能科技有限公司 Defect detection method and device of electronic product and computer readable storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020094637A (en) * 2001-06-12 2002-12-18 삼성전자 주식회사 Liquid crystal display and driving method of the same
FR2843823A1 (en) * 2002-08-20 2004-02-27 Thales Sa Large size active crystal display for aircraft includes isolating circuit capable of isolating row or column control in event of circuit failure
US20060290645A1 (en) * 2005-06-16 2006-12-28 Jeon Dong H Electron emission display device and driving method thereof
US20070222474A1 (en) * 2004-03-19 2007-09-27 De Lauzun Frederic Device for Detecting a Fixed Image on a Liquid Crystal Display Screen
JP2007286316A (en) * 2006-04-17 2007-11-01 Seiko Epson Corp Image display device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3835967B2 (en) * 2000-03-03 2006-10-18 アルパイン株式会社 LCD display
KR100732104B1 (en) * 2003-01-08 2007-06-25 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 Liquid crystal display
US7358944B2 (en) * 2004-04-16 2008-04-15 Chunghwa Picture Tubes, Ltd. Method and system for reducing residual image effect of liquid crystal display after turned off

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020094637A (en) * 2001-06-12 2002-12-18 삼성전자 주식회사 Liquid crystal display and driving method of the same
FR2843823A1 (en) * 2002-08-20 2004-02-27 Thales Sa Large size active crystal display for aircraft includes isolating circuit capable of isolating row or column control in event of circuit failure
US20070222474A1 (en) * 2004-03-19 2007-09-27 De Lauzun Frederic Device for Detecting a Fixed Image on a Liquid Crystal Display Screen
US20060290645A1 (en) * 2005-06-16 2006-12-28 Jeon Dong H Electron emission display device and driving method thereof
JP2007286316A (en) * 2006-04-17 2007-11-01 Seiko Epson Corp Image display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105574906A (en) * 2015-12-21 2016-05-11 苏州长风航空电子有限公司 Preset-pixel-based efficient cabin picture design method

Also Published As

Publication number Publication date
EP2151810A2 (en) 2010-02-10
FR2934917B1 (en) 2010-12-10
FR2934917A1 (en) 2010-02-12
US20100033465A1 (en) 2010-02-11

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