FR3121569B1 - Pixel d'affichage à diode électroluminescente - Google Patents

Pixel d'affichage à diode électroluminescente Download PDF

Info

Publication number
FR3121569B1
FR3121569B1 FR2103309A FR2103309A FR3121569B1 FR 3121569 B1 FR3121569 B1 FR 3121569B1 FR 2103309 A FR2103309 A FR 2103309A FR 2103309 A FR2103309 A FR 2103309A FR 3121569 B1 FR3121569 B1 FR 3121569B1
Authority
FR
France
Prior art keywords
light
emitting diode
voltage
display pixel
driver circuit
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
FR2103309A
Other languages
English (en)
Other versions
FR3121569A1 (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 FR2103309A priority Critical patent/FR3121569B1/fr
Application filed by Aledia filed Critical Aledia
Priority to JP2023560744A priority patent/JP2024513859A/ja
Priority to EP22719573.2A priority patent/EP4315308A1/fr
Priority to KR1020237035580A priority patent/KR20230151112A/ko
Priority to PCT/EP2022/058460 priority patent/WO2022207730A1/fr
Priority to CN202280025625.6A priority patent/CN117136400A/zh
Priority to US18/283,785 priority patent/US20240087505A1/en
Priority to TW111112125A priority patent/TW202244886A/zh
Publication of FR3121569A1 publication Critical patent/FR3121569A1/fr
Application granted granted Critical
Publication of FR3121569B1 publication Critical patent/FR3121569B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/065—Waveforms comprising zero voltage phase or pause
    • 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
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

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

Abstract

Pixel d'affichage à diode électroluminescente La présente description concerne un pixel d'affichage (12i,j) comprenant au moins une diode électroluminescente (LED), un circuit de pilotage (40) de la diode électroluminescente et des premier, deuxième, troisième, et quatrième plots conducteurs (36). Le circuit de pilotage est alimenté par une première tension d'alimentation (Vdd) reçue entre les premier et deuxième plots. La diode électroluminescente est alimentée par un premier signal binaire (Vcci, Veei), reçu entre les troisième et deuxième plots, et alternant entre une deuxième tension d'alimentation (Vcc), supérieure strictement à la première tension, et une troisième tension, inférieure strictement à la première tension. Le circuit de pilotage (40) est configuré pour déterminer un signal numérique (R, G, B) à partir des valeurs d'un deuxième signal binaire (Dataj) sur le quatrième plot reçues pendant chacune de premières impulsions du premier signal binaire à la troisième tension et pour commander la diode électroluminescente à partir du signal numérique. Figure pour l'abrégé : Fig. 7
FR2103309A 2021-03-31 2021-03-31 Pixel d'affichage à diode électroluminescente Active FR3121569B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR2103309A FR3121569B1 (fr) 2021-03-31 2021-03-31 Pixel d'affichage à diode électroluminescente
EP22719573.2A EP4315308A1 (fr) 2021-03-31 2022-03-30 Pixel d'affichage a diode electroluminescente
KR1020237035580A KR20230151112A (ko) 2021-03-31 2022-03-30 발광다이오드 표시 픽셀
PCT/EP2022/058460 WO2022207730A1 (fr) 2021-03-31 2022-03-30 Pixel d'affichage a diode electroluminescente
JP2023560744A JP2024513859A (ja) 2021-03-31 2022-03-30 発光ダイオードを有する表示画素
CN202280025625.6A CN117136400A (zh) 2021-03-31 2022-03-30 发光二极管显示像素
US18/283,785 US20240087505A1 (en) 2021-03-31 2022-03-30 Light emitting diode display pixel
TW111112125A TW202244886A (zh) 2021-03-31 2022-03-30 包括發光二極體的顯示像素

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2103309 2021-03-31
FR2103309A FR3121569B1 (fr) 2021-03-31 2021-03-31 Pixel d'affichage à diode électroluminescente

Publications (2)

Publication Number Publication Date
FR3121569A1 FR3121569A1 (fr) 2022-10-07
FR3121569B1 true FR3121569B1 (fr) 2023-03-17

Family

ID=76375190

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2103309A Active FR3121569B1 (fr) 2021-03-31 2021-03-31 Pixel d'affichage à diode électroluminescente

Country Status (8)

Country Link
US (1) US20240087505A1 (fr)
EP (1) EP4315308A1 (fr)
JP (1) JP2024513859A (fr)
KR (1) KR20230151112A (fr)
CN (1) CN117136400A (fr)
FR (1) FR3121569B1 (fr)
TW (1) TW202244886A (fr)
WO (1) WO2022207730A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69533982T2 (de) * 1994-11-21 2006-01-05 Seiko Epson Corp. Flüssigkristallsteuergerät, flüssigkristallanzeigegerät und flüssigkristallsteuerungsverfahren
JP2005099712A (ja) * 2003-08-28 2005-04-14 Sharp Corp 表示装置の駆動回路および表示装置
CN1934613A (zh) * 2004-03-25 2007-03-21 皇家飞利浦电子股份有限公司 显示单元
US20080303769A1 (en) * 2007-06-07 2008-12-11 Mitsubishi Electric Corporation Image display device and drive circuit
KR101279661B1 (ko) * 2010-11-05 2013-07-05 엘지디스플레이 주식회사 입체 영상 표시장치와 그 전원 제어방법
FR3065116B1 (fr) 2017-04-05 2021-08-27 Commissariat Energie Atomique Dispositif d'affichage d'images emissif a led
CN109559676A (zh) * 2018-12-18 2019-04-02 深圳市奥拓电子股份有限公司 Led显示驱动电路及led显示屏
CN110191539B (zh) * 2019-06-10 2021-09-07 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

Also Published As

Publication number Publication date
CN117136400A (zh) 2023-11-28
FR3121569A1 (fr) 2022-10-07
KR20230151112A (ko) 2023-10-31
TW202244886A (zh) 2022-11-16
US20240087505A1 (en) 2024-03-14
EP4315308A1 (fr) 2024-02-07
JP2024513859A (ja) 2024-03-27
WO2022207730A1 (fr) 2022-10-06

Similar Documents

Publication Publication Date Title
AU2002367235A1 (en) Light emitting diode driver
JP6042890B2 (ja) 状態検出を備える固体変換器、関連システム、および方法
FR3121569B1 (fr) Pixel d'affichage à diode électroluminescente
FR3091027B1 (fr) Dispositif optoélectronique
US4580293A (en) Circuit arrangement for driving a current-controlled component
JP2007095821A (ja) 発光装置および画像形成装置
JPH084153B2 (ja) 発光ダイオ−ド駆動回路
JP2005064412A (ja) ブロックハイブリッド発光素子及びそれを用いた照明用光源
EP0385470A3 (fr) Circuit de commande pour laser à semi-conducteur
FR3130484B1 (fr) Pixel d'affichage à diodes électroluminescentes pour écran d'affichage
KR100735504B1 (ko) 자기 주사형 발광 소자 어레이의 구동 회로
JP2008182168A (ja) 発光素子アレイ、発光装置および画像形成装置
JPS57111076A (en) Semiconductor light-emitting device
EP3540476A1 (fr) Capteur photoélectronique et système de capteur
JP3407536B2 (ja) 窒化物半導体素子
JP5144133B2 (ja) ラインセンサおよび画像形成装置
JPS58138083A (ja) 発光ダイオ−ド装置
KR100991742B1 (ko) 광 검출기를 구비한 광소자
US7005683B2 (en) Resin-packaged led light source
JPH01122178A (ja) フォトカプラ
JP2007203555A (ja) 発光素子アレイ、発光装置および画像形成装置
JP2005167018A (ja) 発光装置
JP2004330630A (ja) ドライバーｉｃ及びこれを用いた光プリンタヘッド
JPH0231457A (ja) 発光素子駆動用半導体装置
JPS63248191A (ja) 半導体レ−ザアレイ装置

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20221007

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4