FR3131056B1 - Pixel d'affichage à diodes électroluminescentes pour écran d'affichage - Google Patents

Pixel d'affichage à diodes électroluminescentes pour écran d'affichage Download PDF

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Publication number
FR3131056B1
FR3131056B1 FR2114278A FR2114278A FR3131056B1 FR 3131056 B1 FR3131056 B1 FR 3131056B1 FR 2114278 A FR2114278 A FR 2114278A FR 2114278 A FR2114278 A FR 2114278A FR 3131056 B1 FR3131056 B1 FR 3131056B1
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FR
France
Prior art keywords
emitting diode
light
pad
module
display pixel
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.)
Active
Application number
FR2114278A
Other languages
English (en)
Other versions
FR3131056A1 (fr
Inventor
Frédéric Mercier
Ivan Petkov
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.)
Aledia
Original Assignee
Aledia
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 Aledia filed Critical Aledia
Priority to FR2114278A priority Critical patent/FR3131056B1/fr
Priority to PCT/EP2022/085276 priority patent/WO2023117510A1/fr
Publication of FR3131056A1 publication Critical patent/FR3131056A1/fr
Application granted granted Critical
Publication of FR3131056B1 publication Critical patent/FR3131056B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G09G3/22—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]
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0272—Details of drivers for data electrodes, the drivers communicating data to the pixels by means of a current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • 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
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/026—Arrangements or methods related to booting a display

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

Pixel d'affichage à diodes électroluminescentes pour écran d'affichage La présente description concerne un pixel d'affichage (12i,j) comprenant au moins une diode électroluminescente (LED), un circuit électronique (40) de pilotage de la diode électroluminescente, et des premier et deuxième plots conducteurs, le premier plot (P_Vcc) étant relié à la diode électroluminescente, le circuit de pilotage étant configuré en fonctionnement normal pour commander la diode électroluminescente à partir de premiers signaux (Dataj) reçus sur le deuxième plot, le circuit de pilotage comprenant des premier et deuxième modules (41, 43), le premier module étant relié aux premier et deuxième plots et étant configuré pour activer ou désactiver le deuxième module à partir de la tension d'alimentation (Vcc) reçue sur le premier plot et de premiers signaux reçus sur le deuxième plot, le deuxième module (43) étant configuré, lorsqu'il est activé, pour fournir des deuxièmes signaux (test_data, test_clk) pour la commande de la diode électroluminescente pour une opération de test. Figure pour l'abrégé : Fig. 4
FR2114278A 2021-12-22 2021-12-22 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage Active FR3131056B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2114278A FR3131056B1 (fr) 2021-12-22 2021-12-22 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
PCT/EP2022/085276 WO2023117510A1 (fr) 2021-12-22 2022-12-12 Pixel d'affichage a diodes electroluminescentes pour ecran d'affichage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2114278A FR3131056B1 (fr) 2021-12-22 2021-12-22 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
FR2114278 2021-12-22

Publications (2)

Publication Number Publication Date
FR3131056A1 FR3131056A1 (fr) 2023-06-23
FR3131056B1 true FR3131056B1 (fr) 2024-05-24

Family

ID=80933645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2114278A Active FR3131056B1 (fr) 2021-12-22 2021-12-22 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage

Country Status (2)

Country Link
FR (1) FR3131056B1 (fr)
WO (1) WO2023117510A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3882773B2 (ja) * 2003-04-03 2007-02-21 ソニー株式会社 画像表示装置、駆動回路装置および発光ダイオードの不良検出方法
FR3065116B1 (fr) 2017-04-05 2021-08-27 Commissariat Energie Atomique Dispositif d'affichage d'images emissif a led
US11776460B2 (en) * 2019-03-29 2023-10-03 Creeled, Inc. Active control of light emitting diodes and light emitting diode displays

Also Published As

Publication number Publication date
WO2023117510A1 (fr) 2023-06-29
FR3131056A1 (fr) 2023-06-23

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