FR3131425B1 - 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
FR3131425B1
FR3131425B1 FR2114575A FR2114575A FR3131425B1 FR 3131425 B1 FR3131425 B1 FR 3131425B1 FR 2114575 A FR2114575 A FR 2114575A FR 2114575 A FR2114575 A FR 2114575A FR 3131425 B1 FR3131425 B1 FR 3131425B1
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FR
France
Prior art keywords
emitting diode
light
electrically conductive
test
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
FR2114575A
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English (en)
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FR3131425A1 (fr
Inventor
Frédéric Mercier
Frédéric Vachelard
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 FR2114575A priority Critical patent/FR3131425B1/fr
Priority to PCT/EP2022/084685 priority patent/WO2023126134A1/fr
Priority to TW111149327A priority patent/TW202334931A/zh
Publication of FR3131425A1 publication Critical patent/FR3131425A1/fr
Application granted granted Critical
Publication of FR3131425B1 publication Critical patent/FR3131425B1/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
    • 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

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)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (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) ayant des première et deuxième électrodes, et un circuit électronique (40) de pilotage de ladite diode électroluminescente, le pixel d'affichage comprenant au moins des premier et deuxième plots conducteurs électriquement (P_Vcc, P_Test), le premier plot conducteur électriquement (P_Vcc) étant relié à la première électrode de la diode électroluminescente, le pixel d'affichage comprenant en outre un composant électronique (D) ou un circuit électronique ayant une première borne reliée électriquement au deuxième plot conducteur électriquement (P_Test) et une deuxième borne reliée électriquement à la deuxième électrode de la diode électroluminescente ou au circuit de pilotage (40), configuré pour permettre la circulation d'un courant seulement depuis le deuxième plot conducteur électriquement (P_Test) ou vers le deuxième plot conducteur électriquement (P_Test). Figure pour l'abrégé : Fig. 6
FR2114575A 2021-12-28 2021-12-28 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage Active FR3131425B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2114575A FR3131425B1 (fr) 2021-12-28 2021-12-28 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
PCT/EP2022/084685 WO2023126134A1 (fr) 2021-12-28 2022-12-07 Pixel d'affichage a diodes electroluminescentes pour ecran d'affichage
TW111149327A TW202334931A (zh) 2021-12-28 2022-12-22 包含用於顯示螢幕的發光二極體的顯示像素

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2114575A FR3131425B1 (fr) 2021-12-28 2021-12-28 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
FR2114575 2021-12-28

Publications (2)

Publication Number Publication Date
FR3131425A1 FR3131425A1 (fr) 2023-06-30
FR3131425B1 true FR3131425B1 (fr) 2024-02-16

Family

ID=80786882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2114575A Active FR3131425B1 (fr) 2021-12-28 2021-12-28 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage

Country Status (3)

Country Link
FR (1) FR3131425B1 (fr)
TW (1) TW202334931A (fr)
WO (1) WO2023126134A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2055803A1 (de) 1970-11-13 1972-05-18 Kraftwerk Union Ag Großkessel mit gasdicht verschweißten Feuerraumwänden
FR3065116B1 (fr) * 2017-04-05 2021-08-27 Commissariat Energie Atomique Dispositif d'affichage d'images emissif a led
TWI683114B (zh) * 2018-11-28 2020-01-21 友達光電股份有限公司 顯示面板
US20200341050A1 (en) * 2019-04-28 2020-10-29 Novatek Microelectronics Corp. Current driver array test apparatus, test method thereof, and micro light emitting diode array test method

Also Published As

Publication number Publication date
WO2023126134A1 (fr) 2023-07-06
TW202334931A (zh) 2023-09-01
FR3131425A1 (fr) 2023-06-30

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