KR101073355B1 - 유기전계발광소자 및 그 구동방법 - Google Patents
유기전계발광소자 및 그 구동방법 Download PDFInfo
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- KR101073355B1 KR101073355B1 KR1020040118385A KR20040118385A KR101073355B1 KR 101073355 B1 KR101073355 B1 KR 101073355B1 KR 1020040118385 A KR1020040118385 A KR 1020040118385A KR 20040118385 A KR20040118385 A KR 20040118385A KR 101073355 B1 KR101073355 B1 KR 101073355B1
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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
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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]
- G09G3/3225—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] using an active matrix
- G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
- G09G3/3241—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror
- G09G3/325—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
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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
- G09G2300/0842—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
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than 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
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
-
- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2077—Display of intermediate tones by a combination of two or more gradation control methods
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims (10)
- 게이트가 제 1 노드에 연결되고 소스가 공급전압라인과 연결되고 드레인이 제2 노드에 연결된 제 1 트랜지스터와;게이트가 제1 선택신호선에 연결되고, 드레인이 유기발광다이오드에 연결되고 소스가 상기 제2 노드에 연결된 제 2 트랜지스터와;게이트가 제 2 선택신호선에 연결되고, 드레인이 상기 제 1 노드에 연결되고 소스가 제2 노드에 연결된 제 3 트랜지스터와;게이트가 상기 제 2 선택신호선에 연결되고, 드레인이 상기 제2 노드로 연결되고 소스는 데이터 전류신호와 연결된 제 4 트랜지스터와;상기 제 1 트랜지스터의 게이트 전압을 제어하는 펄스공급선과;상기 제 1 트랜지스터와 상기 펄스공급선 사이에서 충전되는 캐패시터를 포함하여 이루어지는 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 제 1 내지 제 4 트랜지스터는 동일 전도 타입의 트랜지스터인 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 제 1 노드 전압은 상기 펄스에 의해 제어되는 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 캐패시터에는 데이터 전류값만큼의 전압이 충전되는 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 제 1 선택신호선과 제 2 선택신호선은 서로 다른 신호를 발생하는 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 데이터 전류값과 구동 전류값이 다른 것을 특징으로 하는 유기전계발광소자.
- 제 1항에 있어서,상기 제 1 선택신호선과 제 2 선택신호선은 동일한 신호를 발생하는 것을 특징으로 하는 유기전계발광소자
- 다수의 데이터 라인 및 상기 데이터 라인에 교차되게 배열되는 다수의 게이트 라인과, 상기 데이터 라인 및 게이트 라인의 교차부에 발광소자 및 상기 발광소자를 구동시키기 위한 제1 트랜지스터, 상기 제1 트랜지스터의 게이트에 연결된 캐패시터 및 스위치 소자로 사용되는 제2 내지 제4 트랜지스터가 구비된 각 픽셀이 매트릭스 형태로 형성되는 유기전계발광 소자의 구동방법에 있어서,상기 제 3, 4 트랜지스터가 턴-온되고 상기 제 2 트랜지스터가 턴-오프됨에 따라, 상기 데이터 라인으로부터 인가되는 데이터 전류값(I_data)에 해당하는 전압 값이 제4 및 제3 트랜지스터를 통해 상기 캐패시터에 충전되는 단계와;상기 제 3, 4 트랜지스터가 소자가 턴-오프되고, 상기 제2 트랜지스터가 턴온되고 펄스신호가 제 1 구동 트랜지스터의 게이트로 입력되는 단계와;상기 펄스신호가 입력되어 상기 제 1 트랜지스터의 게이트 전압이 증가하여 턴온된 상기 제2 트랜지스터를 통해 상기 데이터 전류값(I_data)보다 작은 전류가 상기 발광소자를 구동하기 위한 구동 전류가 되는 단계를 특징으로 하는 유기전계발광 소자의 구동방법.
- 제 8항에 있어서,상기 제 1 내지 제 4 트랜지스터는 동일 전도 타입의 트랜지스터를 사용하는 것을 특징으로 하는 유기전계발광소자의 구동방법.
- 제1항에 있어서,상기 제1 트랜지스터와 상기 펄스공급선 사이에 연결된 제2 커패시터를 더 포함하는 유기전계발광소자.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040118385A KR101073355B1 (ko) | 2004-12-31 | 2004-12-31 | 유기전계발광소자 및 그 구동방법 |
US11/319,564 US20060145967A1 (en) | 2004-12-31 | 2005-12-29 | Organic electro-luminescence device and method of driving the same |
US12/879,870 US8395576B2 (en) | 2004-12-31 | 2010-09-10 | Organic electro-luminescence device and method of driving the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040118385A KR101073355B1 (ko) | 2004-12-31 | 2004-12-31 | 유기전계발광소자 및 그 구동방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060078427A KR20060078427A (ko) | 2006-07-05 |
KR101073355B1 true KR101073355B1 (ko) | 2011-10-14 |
Family
ID=36639790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040118385A Expired - Lifetime KR101073355B1 (ko) | 2004-12-31 | 2004-12-31 | 유기전계발광소자 및 그 구동방법 |
Country Status (2)
Country | Link |
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US (2) | US20060145967A1 (ko) |
KR (1) | KR101073355B1 (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI356387B (en) * | 2006-10-16 | 2012-01-11 | Au Optronics Corp | Modulation of the common voltage and controlling m |
KR100873078B1 (ko) * | 2007-04-10 | 2008-12-09 | 삼성모바일디스플레이주식회사 | 화소 및 이를 이용한 유기전계발광 표시장치 및 그의구동방법 |
KR100922071B1 (ko) | 2008-03-10 | 2009-10-16 | 삼성모바일디스플레이주식회사 | 화소 및 이를 이용한 유기전계발광 표시장치 |
EP2277163B1 (en) * | 2008-04-18 | 2018-11-21 | Ignis Innovation Inc. | System and driving method for light emitting device display |
KR101502070B1 (ko) | 2008-12-02 | 2015-03-12 | 삼성디스플레이 주식회사 | 표시 장치 및 그의 구동 방법 |
KR100986896B1 (ko) * | 2008-12-05 | 2010-10-08 | 삼성모바일디스플레이주식회사 | 유기전계발광 표시장치 및 그의 구동방법 |
KR101056240B1 (ko) * | 2009-03-02 | 2011-08-11 | 삼성모바일디스플레이주식회사 | 유기전계발광 표시장치 |
JP2011175103A (ja) * | 2010-02-24 | 2011-09-08 | Sony Corp | 画素回路、表示装置およびその駆動方法ならびに電子機器 |
KR101142644B1 (ko) | 2010-03-17 | 2012-05-03 | 삼성모바일디스플레이주식회사 | 유기전계발광 표시장치 |
KR101093374B1 (ko) | 2010-05-10 | 2011-12-14 | 삼성모바일디스플레이주식회사 | 유기전계발광 표시장치 |
KR101875123B1 (ko) * | 2012-02-28 | 2018-07-09 | 삼성디스플레이 주식회사 | 화소 및 이를 이용한 유기전계발광 표시장치 |
CN102760841B (zh) * | 2012-07-11 | 2014-11-26 | 深圳市华星光电技术有限公司 | 有机发光二极管器件及相应的显示装置 |
KR101360767B1 (ko) | 2012-08-17 | 2014-02-12 | 엘지디스플레이 주식회사 | 유기 발광 다이오드 표시장치 및 그 구동 방법 |
KR102072795B1 (ko) | 2013-08-12 | 2020-02-04 | 삼성디스플레이 주식회사 | 유기 전계 발광 표시 장치 및 이의 구동 방법 |
KR20150070597A (ko) | 2013-12-17 | 2015-06-25 | 삼성디스플레이 주식회사 | 유기 전계 발광 표시 장치 및 이의 구동 방법 |
CN105448235B (zh) | 2014-09-28 | 2018-01-26 | 昆山工研院新型平板显示技术中心有限公司 | Amoled像素单元及其驱动方法、amoled显示装置 |
CN105118438B (zh) * | 2015-09-21 | 2017-07-25 | 京东方科技集团股份有限公司 | 像素驱动电路、方法、像素电路和显示装置 |
CN111489703B (zh) * | 2019-01-29 | 2021-07-27 | 上海和辉光电股份有限公司 | 一种像素电路及其驱动方法和显示面板 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG120075A1 (en) * | 2001-09-21 | 2006-03-28 | Semiconductor Energy Lab | Semiconductor device |
JP3707484B2 (ja) * | 2002-11-27 | 2005-10-19 | セイコーエプソン株式会社 | 電気光学装置、電気光学装置の駆動方法および電子機器 |
TW589604B (en) * | 2003-03-07 | 2004-06-01 | Au Optronics Corp | Integrated data driver structure used in a current-driving display device |
CN100383847C (zh) * | 2003-03-31 | 2008-04-23 | 三洋电机株式会社 | 显示元件及显示装置 |
JP3918770B2 (ja) * | 2003-04-25 | 2007-05-23 | セイコーエプソン株式会社 | 電気光学装置、電気光学装置の駆動方法および電子機器 |
TWI274308B (en) * | 2003-12-03 | 2007-02-21 | Au Optronics Corp | Drive circuit of flat panel display with current-driven |
US7173585B2 (en) * | 2004-03-10 | 2007-02-06 | Wintek Corporation | Active matrix display driving circuit |
-
2004
- 2004-12-31 KR KR1020040118385A patent/KR101073355B1/ko not_active Expired - Lifetime
-
2005
- 2005-12-29 US US11/319,564 patent/US20060145967A1/en not_active Abandoned
-
2010
- 2010-09-10 US US12/879,870 patent/US8395576B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20100328276A1 (en) | 2010-12-30 |
US8395576B2 (en) | 2013-03-12 |
KR20060078427A (ko) | 2006-07-05 |
US20060145967A1 (en) | 2006-07-06 |
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