KR100952822B1 - 유기전계발광 표시장치 - Google Patents
유기전계발광 표시장치 Download PDFInfo
- Publication number
- KR100952822B1 KR100952822B1 KR1020080056253A KR20080056253A KR100952822B1 KR 100952822 B1 KR100952822 B1 KR 100952822B1 KR 1020080056253 A KR1020080056253 A KR 1020080056253A KR 20080056253 A KR20080056253 A KR 20080056253A KR 100952822 B1 KR100952822 B1 KR 100952822B1
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- South Korea
- Prior art keywords
- input voltage
- voltage
- display panel
- control signal
- offset
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- 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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/12—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
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- 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
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/90—Multiple hosts in the emissive layer
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims (6)
- 영상 데이터 및 입력전압을 전달받아 영상을 표시하는 표시패널과,상기 표시패널로 상기 영상 데이터를 공급하며, 상기 표시패널의 입력단으로 입력되는 입력전압을 전달받아 이에 대응하는 오프셋 제어신호를 출력하는 구동 IC와,상기 오프셋 제어신호에 대응하여 출력전압을 조절하고, 이를 상기 표시패널로 공급함으로써 상기 입력전압을 조절하는 전원공급부를 포함하는 유기전계발광 표시장치.
- 제1항에 있어서,상기 구동 IC는,상기 입력전압을 감지하는 입력전압 감지부와,상기 입력전압과 미리 설정된 전압값을 비교하고, 이에 대응하여 상기 전원공급부로 상기 오프셋 제어신호를 출력하는 오프셋 비교부를 포함하는 유기전계발광 표시장치.
- 제2항에 있어서,상기 입력전압 감지부는, 상기 입력전압을 디지털 신호로 변환하는 아날로그-디지털 컨버터(ADC)인 유기전계발광 표시장치.
- 제2항에 있어서,상기 오프셋 비교부는, 상기 입력전압 및 상기 미리 설정된 전압값의 차를 상기 오프셋 제어신호를 통해 상기 전원공급부로 출력하는 유기전계발광 표시장치.
- 제2항에 있어서,상기 구동 IC는,호스트로부터의 라이트(write) 명령에 대응하여 상기 오프셋 비교부를 제어하는 클럭신호를 출력하는 체크섬부를 더 포함하는 유기전계발광 표시장치.
- 제1항에 있어서,상기 전원공급부는,상기 오프셋 제어신호를 감지하여 기준전압 제어신호를 출력하는 오프셋 제어부와,상기 기준전압 제어신호에 대응하여 기준전압을 조절하는 기준전압 제어부와,상기 기준전압에 대응하여 상기 전원공급부의 출력전압을 조절하는 피드백 회로부와,상기 출력전압을 승압하여 상기 표시패널의 상기 입력전압으로 출력하는 부스터부를 포함하는 유기전계발광 표시장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080056253A KR100952822B1 (ko) | 2008-06-16 | 2008-06-16 | 유기전계발광 표시장치 |
US12/467,144 US8717256B2 (en) | 2008-06-16 | 2009-05-15 | Organic light emitting display device with an input voltage controlled in accordance with an offset control signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080056253A KR100952822B1 (ko) | 2008-06-16 | 2008-06-16 | 유기전계발광 표시장치 |
Publications (2)
Publication Number | Publication Date |
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KR20090130558A KR20090130558A (ko) | 2009-12-24 |
KR100952822B1 true KR100952822B1 (ko) | 2010-04-14 |
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KR1020080056253A Active KR100952822B1 (ko) | 2008-06-16 | 2008-06-16 | 유기전계발광 표시장치 |
Country Status (2)
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US (1) | US8717256B2 (ko) |
KR (1) | KR100952822B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101712202B1 (ko) * | 2010-07-07 | 2017-03-03 | 엘지디스플레이 주식회사 | 표시장치 |
DE102018117021A1 (de) * | 2018-07-13 | 2020-01-16 | HELLA GmbH & Co. KGaA | Verfahren und Mittel zum Einstellen einer Spannungsversorgungsvorrichtung für eine Mehrkanal-LED-Steuerungs- und Stromversorgungsvorrichtung |
Citations (4)
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KR20060039987A (ko) * | 2004-11-04 | 2006-05-10 | 삼성에스디아이 주식회사 | 발광 표시 장치 및 그것의 직류-직류 변환기 |
KR20080082281A (ko) * | 2007-03-08 | 2008-09-11 | 삼성에스디아이 주식회사 | 유기전계발광표시장치 및 그의 제조방법 |
KR20080083883A (ko) * | 2007-03-13 | 2008-09-19 | 삼성전자주식회사 | 킥-백 전압 보상 방법 및 이를 이용한 액정 표시 장치 |
KR20080084150A (ko) * | 2007-03-15 | 2008-09-19 | 엘지디스플레이 주식회사 | 액정 표시장치의 구동장치와 그 구동방법 |
Family Cites Families (13)
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GB2389952A (en) * | 2002-06-18 | 2003-12-24 | Cambridge Display Tech Ltd | Driver circuits for electroluminescent displays with reduced power consumption |
US6995519B2 (en) * | 2003-11-25 | 2006-02-07 | Eastman Kodak Company | OLED display with aging compensation |
US20060007248A1 (en) * | 2004-06-29 | 2006-01-12 | Damoder Reddy | Feedback control system and method for operating a high-performance stabilized active-matrix emissive display |
JP2007528513A (ja) * | 2004-03-10 | 2007-10-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 電力消費の低減を伴うアクティブマトリクスディスプレイ |
KR20060038847A (ko) | 2004-11-01 | 2006-05-04 | 주식회사 대우일렉트로닉스 | 능동소자를 이용한 유기 이엘 소자 구동의 소자 구조 |
KR20060122475A (ko) * | 2005-05-27 | 2006-11-30 | 삼성에스디아이 주식회사 | 전자방출표시장치 및 그 전압제어방법 |
KR100665970B1 (ko) | 2005-06-28 | 2007-01-10 | 한국과학기술원 | 액티브 매트릭스 유기발광소자의 자동 전압 출력 구동 방법및 회로와 이를 이용한 데이터 구동 회로 |
KR20070015257A (ko) * | 2005-07-30 | 2007-02-02 | 삼성전자주식회사 | 표시 장치, 이의 구동 방법 및 이의 구동 장치 |
US20070146253A1 (en) | 2005-12-22 | 2007-06-28 | Au Optronics Corporation | Method and device for brightness stabilization in AMOLED display |
KR20070080720A (ko) * | 2006-02-08 | 2007-08-13 | 삼성전자주식회사 | 신호 처리 장치, 액정 표시 장치 및 액정 표시 장치의테스트 시스템 |
US7397403B2 (en) * | 2006-07-07 | 2008-07-08 | Linear Technology Corp. | Range compression in oversampling analog-to-digital converters using differential input signals |
KR100914118B1 (ko) * | 2007-04-24 | 2009-08-27 | 삼성모바일디스플레이주식회사 | 유기 전계 발광 표시 장치 및 그 구동 방법 |
KR101386457B1 (ko) * | 2007-05-22 | 2014-04-18 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 이의 구동 방법 |
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2008
- 2008-06-16 KR KR1020080056253A patent/KR100952822B1/ko active Active
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2009
- 2009-05-15 US US12/467,144 patent/US8717256B2/en active Active
Patent Citations (4)
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KR20060039987A (ko) * | 2004-11-04 | 2006-05-10 | 삼성에스디아이 주식회사 | 발광 표시 장치 및 그것의 직류-직류 변환기 |
KR20080082281A (ko) * | 2007-03-08 | 2008-09-11 | 삼성에스디아이 주식회사 | 유기전계발광표시장치 및 그의 제조방법 |
KR20080083883A (ko) * | 2007-03-13 | 2008-09-19 | 삼성전자주식회사 | 킥-백 전압 보상 방법 및 이를 이용한 액정 표시 장치 |
KR20080084150A (ko) * | 2007-03-15 | 2008-09-19 | 엘지디스플레이 주식회사 | 액정 표시장치의 구동장치와 그 구동방법 |
Also Published As
Publication number | Publication date |
---|---|
US20090309817A1 (en) | 2009-12-17 |
US8717256B2 (en) | 2014-05-06 |
KR20090130558A (ko) | 2009-12-24 |
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