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FR3130484B1 - 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
FR3130484B1
FR3130484B1 FR2113487A FR2113487A FR3130484B1 FR 3130484 B1 FR3130484 B1 FR 3130484B1 FR 2113487 A FR2113487 A FR 2113487A FR 2113487 A FR2113487 A FR 2113487A FR 3130484 B1 FR3130484 B1 FR 3130484B1
Authority
FR
France
Prior art keywords
voltage
emitting diode
light
display pixel
pads
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
FR2113487A
Other languages
English (en)
Other versions
FR3130484A1 (fr
Inventor
Frédéric Mercier
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
Priority to FR2113487A priority Critical patent/FR3130484B1/fr
Application filed by Aledia filed Critical Aledia
Priority to KR1020247015415A priority patent/KR102762697B1/ko
Priority to EP22834546.8A priority patent/EP4449399A1/fr
Priority to US18/716,888 priority patent/US12230197B2/en
Priority to CN202280082935.1A priority patent/CN118435264A/zh
Priority to PCT/EP2022/084909 priority patent/WO2023110604A1/fr
Priority to JP2024535330A priority patent/JP7638048B2/ja
Priority to TW111147776A priority patent/TW202341114A/zh
Publication of FR3130484A1 publication Critical patent/FR3130484A1/fr
Application granted granted Critical
Publication of FR3130484B1 publication Critical patent/FR3130484B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G09G3/22—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]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2230/00—Details of flat display driving waveforms
    • 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
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0804—Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • 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
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0857—Static memory circuit, e.g. flip-flop
    • 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
    • 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
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • 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
    • G09G2330/021—Power management, e.g. power saving
    • 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
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/023—Power management, e.g. power saving using energy recovery or conservation

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)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of El Displays (AREA)
  • Led Device Packages (AREA)

Abstract

Pixel d'affichage à diodes électroluminescentes pour écran d'affichage La présente description concerne un pixel d'affichage (12i,j) comprenant une diode électroluminescente (LED), un circuit de pilotage (40) de la diode électroluminescente et des premier, deuxième, troisième, et quatrième plots conducteurs (36). La diode électroluminescente est alimentée par une première tension (Vcc) reçue entre les premier et deuxième plots. Le circuit de pilotage commande la diode électroluminescente à partir de premier et deuxième signaux binaires (Comi, Dataj). Le premier signal (Comi) est reçu entre les troisième et deuxième plots et alterne entre une deuxième tension (Vdd), inférieure à la première tension, et une troisième tension (Gnd), inférieure à la deuxième tension. Le deuxième signal (Dataj) est reçu entre les quatrième et deuxième plots et alterne entre la deuxième tension (Vdd) et la troisième tension (Gnd). Le pixel d'affichage comprend un circuit (60) de fourniture d'une tension d'alimentation (Vdd) du circuit de pilotage, à partir des premier et deuxième signaux. Figure pour l'abrégé : Fig. 5
FR2113487A 2021-12-14 2021-12-14 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage Active FR3130484B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR2113487A FR3130484B1 (fr) 2021-12-14 2021-12-14 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
EP22834546.8A EP4449399A1 (fr) 2021-12-14 2022-12-08 Pixel d'affichage a diodes electroluminescentes pour ecran d'affichage
US18/716,888 US12230197B2 (en) 2021-12-14 2022-12-08 Display pixel comprising light-emitting diodes for a display screen
CN202280082935.1A CN118435264A (zh) 2021-12-14 2022-12-08 用于显示屏的包括发光二极管的显示像素
KR1020247015415A KR102762697B1 (ko) 2021-12-14 2022-12-08 표시 화면을 위한 발광 다이오드를 구비하는 표시 픽셀
PCT/EP2022/084909 WO2023110604A1 (fr) 2021-12-14 2022-12-08 Pixel d'affichage a diodes electroluminescentes pour ecran d'affichage
JP2024535330A JP7638048B2 (ja) 2021-12-14 2022-12-08 ディスプレイスクリーンのための発光ダイオードに基づく表示画素
TW111147776A TW202341114A (zh) 2021-12-14 2022-12-13 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
FR2113487 2021-12-14
FR2113487A FR3130484B1 (fr) 2021-12-14 2021-12-14 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage

Publications (2)

Publication Number Publication Date
FR3130484A1 FR3130484A1 (fr) 2023-06-16
FR3130484B1 true FR3130484B1 (fr) 2023-11-03

Family

ID=80780959

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2113487A Active FR3130484B1 (fr) 2021-12-14 2021-12-14 Pixel d'affichage à diodes électroluminescentes pour écran d'affichage

Country Status (8)

Country Link
US (1) US12230197B2 (fr)
EP (1) EP4449399A1 (fr)
JP (1) JP7638048B2 (fr)
KR (1) KR102762697B1 (fr)
CN (1) CN118435264A (fr)
FR (1) FR3130484B1 (fr)
TW (1) TW202341114A (fr)
WO (1) WO2023110604A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3153208A1 (fr) * 2023-09-19 2025-03-21 Aledia Pixels d'affichage comprenant des diodes électroluminescentes et écran d'affichage comportant de tels pixels d'affichage

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006054312A (ja) 2004-08-11 2006-02-23 Sanyo Electric Co Ltd 発光素子
FR3065116B1 (fr) 2017-04-05 2021-08-27 Commissariat Energie Atomique Dispositif d'affichage d'images emissif a led
FR3068819B1 (fr) * 2017-07-04 2019-11-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives Dispositif d'affichage a leds
FR3069379B1 (fr) * 2017-07-21 2019-08-23 Aledia Dispositif optoelectronique
FR3069378B1 (fr) * 2017-07-21 2019-08-23 Aledia Dispositif optoelectronique
KR101920437B1 (ko) 2018-01-09 2018-11-20 (주)실리콘인사이드 액티브 매트릭스 구성이 가능한 led 픽셀 패키지
JP7066537B2 (ja) 2018-06-06 2022-05-13 株式会社ジャパンディスプレイ 表示装置及び表示装置の駆動方法
TWI692747B (zh) 2019-03-28 2020-05-01 聚積科技股份有限公司 顯示系統及其共用驅動電路
CN113192457B (zh) 2019-06-10 2022-06-28 酷矽半导体科技(上海)有限公司 驱动电路、驱动芯片及显示系统、显示方法
US11462165B2 (en) * 2019-07-02 2022-10-04 Beijing Boe Technology Development Co., Ltd. Pixel driving circuit, related driving method, pixel circuit, and display panel
CN110782839B (zh) * 2019-11-13 2021-03-23 京东方科技集团股份有限公司 像素驱动电路及其驱动方法、显示面板和显示装置
KR20210105253A (ko) * 2020-02-18 2021-08-26 삼성전자주식회사 Led 패키지 및 이를 포함하는 디스플레이 장치
US11393389B2 (en) * 2020-05-01 2022-07-19 Huayuan Semiconductor (Shenzhen) Limited Company Power line communication driver circuit

Also Published As

Publication number Publication date
KR102762697B1 (ko) 2025-02-04
FR3130484A1 (fr) 2023-06-16
EP4449399A1 (fr) 2024-10-23
TW202341114A (zh) 2023-10-16
US20240428723A1 (en) 2024-12-26
CN118435264A (zh) 2024-08-02
KR20240089498A (ko) 2024-06-20
US12230197B2 (en) 2025-02-18
JP7638048B2 (ja) 2025-03-03
JP2024546136A (ja) 2024-12-17
WO2023110604A1 (fr) 2023-06-22

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