KR100678700B1 - 전기 장치 - Google Patents
전기 장치 Download PDFInfo
- Publication number
- KR100678700B1 KR100678700B1 KR1020000070799A KR20000070799A KR100678700B1 KR 100678700 B1 KR100678700 B1 KR 100678700B1 KR 1020000070799 A KR1020000070799 A KR 1020000070799A KR 20000070799 A KR20000070799 A KR 20000070799A KR 100678700 B1 KR100678700 B1 KR 100678700B1
- Authority
- KR
- South Korea
- Prior art keywords
- tft
- thin film
- film transistor
- power supply
- display
- Prior art date
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Images
Classifications
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- 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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- 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
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- 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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- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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Abstract
Description
먼저, 게이트 신호선(G1)에 게이트 신호가 입력되고, 그 게이트 신호선에 접속되어 있는 모든 스위칭용 TFT(1701)가 온(on) 상태로 된다. 그리고, 소스 신호선(S1∼Sn)에 차례로 디지털 데이터 신호가 입력된다. 대향 전위는 전원 공급선(V1∼Vn)의 전원 전위와 같은 높이로 유지된다. 디지털 데이터 신호는 "0" 또는 "1"의 정보를 포함한다. "0" 또는 "1"의 디지털 데이터 신호는 각각 Hi 또는 Lo의 전압을 가지는 신호를 의미한다.
상기한 다계조 방식 EL 표시장치에 대하여, EL 표시장치를 대형화한 경우, 화소의 수가 증가하고, EL 표시장치에는 큰 전류가 흐르게 된다. 이 전류는 EL 구동 전압을 제어하는 외부 스위치를 통해 흐르기 때문에, EL 구동 전압을 제어하는 외부 스위치에는 높은 전류 능력이 요구된다.
폴리머계(고분자계) 유기 재료는 스핀 코팅법(용액 도포법이라고도 함), 디핑(dipping)법, 디스펜싱(dispensing)법, 인쇄법, 및 잉크젯법 등의 간단한 박막 형성 방법으로 형성될 수 있다. 폴리머계(고분자계) 유기 재료는 저분자계 유기 재료에 비해 내열성이 높다.
래치(A)(802)의 일부(804)의 상면도가 도 22에 도시되어 있다. 부호 831a, 831b는 각각 래치(A)(802)의 일부(804)가 가지는 인버터 하나를 형성하는 TFT의 활성층을 나타내고, 부호 836은 인버터 하나를 형성하는 TFT의 공통 게이트 전극를 나타낸다. 또한, 부호 832a, 832b는 래치(A)(802)의 일부(804)가 가지는 하나의 인버터를 형성하는 다른 TFT의 활성층을 나타내고, 부호 837a, 837b는 각각 활성층(832a, 832b)상에 형성된 게이트 전극을 나타낸다. 게이트 전극(837a, 837b)은 서로 전기적으로 접속되어 있다.
Claims (33)
- 다수의 소스 신호선, 다수의 게이트 신호선, 다수의 전원 공급선, 다수의 전원 제어선, 및 다수의 화소를 포함하는 전기 장치로서;상기 다수의 화소 각각은 스위칭용 박막트랜지스터, EL 구동용 박막트랜지스터, 전원 제어용 박막트랜지스터, 및 EL 소자를 포함하고,상기 전원 제어용 박막트랜지스터가 상기 EL 소자의 음극과 양극 사이의 전위차를 제어하는 것을 특징으로 하는 전기 장치.
- 다수의 소스 신호선, 다수의 게이트 신호선, 다수의 전원 공급선, 다수의 전원 제어선, 및 다수의 화소를 포함하는 전기 장치로서;상기 다수의 화소 각각은 스위칭용 박막트랜지스터, EL 구동용 박막트랜지스터, 전원 제어용 박막트랜지스터, 및 EL 소자를 포함하고,1 프레임 기간 중에 상기 EL 소자가 발광하는 기간이 디지털 데이터 신호에 의해 제어되고,상기 전원 제어용 박막트랜지스터가 상기 EL 소자의 음극과 양극 사이의 전위차를 제어하는 것을 특징으로 하는 전기 장치.
- 다수의 소스 신호선, 다수의 게이트 신호선, 다수의 전원 공급선, 다수의 전원 제어선, 및 다수의 화소를 포함하는 전기 장치로서;상기 다수의 화소 각각은 스위칭용 박막트랜지스터, EL 구동용 박막트랜지스터, 전원 제어용 박막트랜지스터, 및 EL 소자를 포함하고,1 프레임 기간은 n개의 서브프레임 기간(SF1, SF2, ..., SFn)을 포함하고,상기 n개의 서브프레임 기간은 기입 기간(Ta1, Ta2, ..., Tan)과 표시 기간(Ts1, Ts2, ..., Tsn)을 포함하고,상기 기입 기간(Ta1, Ta2, ..., Tan)에 상기 다수의 화소 모두에 디지털 데이터 신호가 입력되고,상기 디지털 데이터 신호에 의해, 상기 표시 기간(Ts1, Ts2, ..., Tsn)에서 상기 다수의 EL 소자가 발광하는지 발광하지 않는지가 선택되고,상기 기입 기간(Ta1, Ta2, ..., Tan)의 길이는 모든 동일하고,상기 표시 기간(Ts1, Ts2, ..., Tsn)의 길이의 비는 20:2-1:...:2-(n-1)로 표현되고,상기 전원 제어용 박막트랜지스터가 상기 EL 소자의 음극과 양극 사이의 전위차를 제어하는 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 스위칭용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나는 상기 다수의 소스 신호선 중 하나에 접속되고, 상기 스위칭용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 EL 구동용 박막트랜지스터의 게이트 전극에 접속되어 있고,상기 EL 구동용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나는 상기 다수의 전원 공급선 중 하나에 접속되고, 상기 EL 구동용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 전원 제어용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나에 접속되어 있고,상기 전원 제어용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 EL 소자의 음극과 양극 중 하나에 접속되어 있고,상기 전원 제어용 박막트랜지스터의 게이트 전극은 상기 다수의 전원 제어선 중 하나에 접속되어 있는 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 스위칭용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나는 상기 다수의 소스 신호선 중 하나에 접속되고, 상기 스위칭용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 EL 구동용 박막트랜지스터의 게이트 전극에 접속되어 있고,상기 EL 구동용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나는 상기 전원 제어용 박막트랜지스터의 소스 영역과 드레인 영역 중 하나에 접속되고, 상기 EL 구동용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 EL 소자의 음극과 양극 중 하나에 접속되어 있고,상기 전원 제어용 박막트랜지스터의 소스 영역과 드레인 영역 중 다른 하나는 상기 다수의 전원 공급선 중 하나에 접속되어 있고,상기 전원 제어용 박막트랜지스터의 게이트 전극은 상기 다수의 전원 제어선 중 하나에 접속되어 있는 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 EL 구동용 박막트랜지스터의 게이트 전극과 상기 다수의 전원 공급선 중 하나와의 사이에 커패시터를 추가로 포함하는 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 상기 다수의 EL 소자 각각이 상기 양극과 상기 음극 사이에 EL 층을 구비하고,상기 EL 층은 저분자계 유기 재료와 폴리머계 유기 재료로 이루어진 군에서 선택되는 재료를 포함하는 것을 특징으로 하는 전기 장치.
- 제 7 항에 있어서, 상기 EL 층은 Alq3(트리스-8-퀴놀리놀라이트 알루미늄)과 TPD(트리페닐아민 유도체)로 이루어진 군에서 선택된 저분자계 유기 재료를 포함하는 것을 특징으로 하는 전기 장치.
- 제 7 항에 있어서, 상기 EL 층은 PPV(폴리페닐렌 비닐렌), PVK(폴리비닐 카르바졸), 및 폴리카보네이트로 이루어진 군에서 선택된 폴리머계 유기 재료를 포함하는 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항에 있어서, 1 프레임 기간이 1/60초 이하인 것을 특징으로 하는 전기 장치.
- 제 1 항 내지 제 3 항 중 어느 한 항의 전기 장치를 이용하는 것을 특징으로 하는 컴퓨터.
- 제 1 항 내지 제 3 항 중 어느 한 항의 전기 장치를 이용하는 것을 특징으로 하는 비디오 카메라.
- 제 1 항 내지 제 3 항 중 어느 한 항의 전기 장치를 이용하는 것을 특징으로 하는 DVD 플레이어.
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Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP11-341272 | 1999-11-30 | ||
JP34127299 | 1999-11-30 | ||
JP2000-260061 | 2000-08-30 | ||
JP2000260061 | 2000-08-30 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020050113479A Division KR100678703B1 (ko) | 1999-11-30 | 2005-11-25 | 발광 표시장치를 구비한 전기 장치 |
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- 2000-11-08 TW TW089123604A patent/TW587239B/zh not_active IP Right Cessation
- 2000-11-27 KR KR1020000070799A patent/KR100678700B1/ko active IP Right Grant
- 2000-11-29 US US09/725,798 patent/US6730966B2/en not_active Expired - Lifetime
- 2000-11-30 CN CN200510078110.0A patent/CN1722921B/zh not_active Expired - Fee Related
- 2000-11-30 EP EP00126217.9A patent/EP1107220B1/en not_active Expired - Lifetime
- 2000-11-30 CN CN00134431A patent/CN1304182A/zh active Pending
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- 2005-11-25 KR KR1020050113479A patent/KR100678703B1/ko not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
CN1722921A (zh) | 2006-01-18 |
US20090218573A1 (en) | 2009-09-03 |
US8890149B2 (en) | 2014-11-18 |
TW587239B (en) | 2004-05-11 |
EP1107220A2 (en) | 2001-06-13 |
KR20010051967A (ko) | 2001-06-25 |
CN1304182A (zh) | 2001-07-18 |
KR100678703B1 (ko) | 2007-02-02 |
US6982462B2 (en) | 2006-01-03 |
US8017948B2 (en) | 2011-09-13 |
US20050001215A1 (en) | 2005-01-06 |
US7525119B2 (en) | 2009-04-28 |
EP1107220A3 (en) | 2002-08-28 |
US20010002703A1 (en) | 2001-06-07 |
US20120061674A1 (en) | 2012-03-15 |
US6730966B2 (en) | 2004-05-04 |
CN102176303B (zh) | 2013-07-10 |
KR20060004883A (ko) | 2006-01-16 |
US20060033161A1 (en) | 2006-02-16 |
CN102176303A (zh) | 2011-09-07 |
CN1722921B (zh) | 2015-05-13 |
EP1107220B1 (en) | 2014-09-03 |
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