KR20180070334A - 박막 트랜지스터 기판 및 이를 포함하는 표시 장치 - Google Patents
박막 트랜지스터 기판 및 이를 포함하는 표시 장치 Download PDFInfo
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Abstract
Description
도 2는 본 출원의 일 예에 따른 박막 트랜지스터 기판의 회로도이다.
도 3은 본 출원의 일 예에 따른 박막 트랜지스터 기판의 평면도이다.
도 4는 도 3의 Ⅰ-Ⅰ`를 나타낸 단면도이다.
도 5는 본 출원의 다른 예에 따른 박막 트랜지스터 기판의 단면도이다.
도 6은 본 출원의 일 예에 따른 박막 트랜지스터 기판의 차광층을 나타낸 평면도이다.
도 7는 본 출원의 일 예에 따른 박막 트랜지스터 기판의 차광층 및 액티브층을 나타낸 평면도이다.
도 8는 본 출원의 일 예에 따른 박막 트랜지스터 기판의 차광층, 액티브층, 구동 트랜지스터 상부 전극, 스위칭 트랜지스터 게이트 전극, 및 초기화 트랜지스터 게이트 전극을 나타낸 평면도이다.
도 9은 본 출원의 일 예에 따른 박막 트랜지스터 기판의 차광층, 액티브층, 구동 트랜지스터 상부 전극, 스위칭 트랜지스터 게이트 전극, 초기화 트랜지스터 게이트 전극, 및 상부 커패시터 전극을 나타낸 평면도이다.
도 10은 기존의 박막 트랜지스터 기판의 S-계수 그래프와 본 출원의 일 예에 따른 박막 트랜지스터 기판의 S-계수 그래프를 비교한 도면이다.
Tdr: 구동 트랜지스터 Tem: 발광 제어 트랜지스터
Tini: 초기화 트랜지스터 Cst: 스토리지 커패시터
Cst1: 제1 스토리지 커패시터 Cst2: 제2 스토리지 커패시터
Cv: 전위 커패시터 LS: 차광층
ACT: 액티브층 CNT1~CNT8: 제1 내지 제8 컨택 홀
110: 하부 기판 130: 버퍼층
140: 구동 트랜지스터 액티브층 140ch: 구동 트랜지스터 채널층
140d: 구동 트랜지스터 드레인층 140s: 구동 트랜지스터 소스층
141: 구동 트랜지스터 게이트 절연막
142: 구동 트랜지스터 상부 전극 150: 층간 절연막
151: 제1 층간 절연막 152: 제2 층간 절연막
161: 제1 소스/드레인 패턴 162: 제2 소스/드레인 패턴
163: 제3 소스/드레인 패턴 170: 보호층
180: 상부 커패시터 전극 240: 스위칭 트랜지스터 액티브층
240ch: 스위칭 트랜지스터 채널층 240d: 스위칭 트랜지스터 드레인층
240s: 스위칭 트랜지스터 소스층
241: 스위칭 트랜지스터 게이트 절연막
242: 스위칭 트랜지스터 게이트 전극
340: 초기화 트랜지스터 액티브층
340ch: 초기화 트랜지스터 채널층 340d: 초기화 트랜지스터 드레인층
340s: 초기화 트랜지스터 소스층
341: 초기화 트랜지스터 게이트 절연막
342: 초기화 트랜지스터 게이트 전극
1100: 표시 패널 1110: 박막 트랜지스터 기판
1120: 대향 기판 1200: 게이트 구동부
1300: 소스 드라이브 IC 1400: 연성 회로 필름
1500: 회로 보드 1600: 타이밍 컨트롤러
Claims (16)
- 차광층;
상기 차광층을 덮는 버퍼층; 및
상기 차광층과 중첩되도록 상기 버퍼층 상에 마련되고 유기 발광 소자에 구동 전류를 공급하는 구동 트랜지스터를 포함하며,
상기 구동 트랜지스터는,
구동 트랜지스터 소스층과 구동 트랜지스터 드레인층 및 구동 트랜지스터 채널층을 가지면서 상기 차광층과 중첩되는 구동 트랜지스터 액티브층;
상기 구동 트랜지스터 채널층과 중첩되는 구동 트랜지스터 게이트 절연막; 및
상기 구동 트랜지스터 게이트 절연막 상에 마련된 구동 트랜지스터 상부 전극을 포함하며,
상기 구동 트랜지스터 드레인층은 상기 차광층을 통해 제1 전압을 수신하고,상기 구동 트랜지스터 상부 전극은 상기 제1 전압과 다른 제2 전압을 수신하는, 박막 트랜지스터 기판. - 제 1 항에 있어서,
상기 구동 트랜지스터 상부 전극은 상기 구동 트랜지스터 소스층과 전기적으로 연결된, 박막 트랜지스터 기판. - 제 1 항에 있어서,
상기 버퍼층의 두께는 상기 구동 트랜지스터 게이트 절연막의 두께보다 두꺼운, 박막 트랜지스터 기판. - 제 1 항에 있어서,
상기 버퍼층 상에 마련되고 상기 제1 전압을 상기 차광층에 공급하는 스위칭 트랜지스터를 더 포함하는, 박막 트랜지스터 기판. - 제 4 항에 있어서,
상기 스위칭 트랜지스터는,
상기 버퍼층 상에 마련된 스위칭 트랜지스터 소스층과 스위칭 트랜지스터 드레인층 및 스위칭 트랜지스터 채널층을 갖는 스위칭 트랜지스터 액티브층;
상기 스위칭 트랜지스터 채널층과 중첩되는 스위칭 트랜지스터 게이트 절연막; 및
상기 스위칭 트랜지스터 게이트 절연막 상에 마련된 스위칭 트랜지스터 게이트 전극을 포함하며,
상기 스위칭 트랜지스터 드레인층은 데이터 전압을 수신하고,
상기 스위칭 트랜지스터 소스층은 상기 제1 전압을 상기 차광층에 공급하는, 박막 트랜지스터 기판. - 제 5 항에 있어서,
상기 구동 트랜지스터 소스층과 연결된 초기화 트랜지스터를 더 포함하는, 박막 트랜지스터 기판. - 제 6 항에 있어서,
상기 구동 트랜지스터 소스층과 상기 초기화 트랜지스터의 드레인층은 연속적으로 배치된, 박막 트랜지스터 기판. - 제 7 항에 있어서,
구동 전원과 상기 구동 트랜지스터 드레인층에 연결된 발광 제어 트랜지스터를 더 포함하는, 박막 트랜지스터 기판. - 제 1 항 내지 제 8 항 중 어느 한 항에 있어서,
상기 차광층과 상기 구동 트랜지스터 간의 중첩 영역에 마련된 스토리지 커패시터를 더 포함하는, 박막 트랜지스터 기판. - 제 9 항에 있어서,
상기 스토리지 커패시터는 상기 구동 트랜지스터 소스층과 상기 초기화 트랜지스터의 드레인층 사이에서 연속적으로 배치된, 박막 트랜지스터 기판. - 제 9 항에 있어서,
상기 구동 트랜지스터 소스층과 중첩되는 상부 커패시터 전극을 더 포함하며,
상기 스토리지 커패시터는,
상기 구동 트랜지스터 소스층과 상기 차광층 사이에 마련된 제1 스토리지 커패시터; 및
상기 구동 트랜지스터 소스층과 상기 상부 커패시터 전극 사이에 마련된 제2 스토리지 커패시터를 포함하는, 박막 트랜지스터 기판. - 제 11 항에 있어서,
상기 구동 트랜지스터 액티브층과 상기 구동 트랜지스터 상부 전극을 덮는 제1 층간 절연막을 더 포함하며,
상기 상부 커패시터 전극은 상기 구동 트랜지스터 소스층과 중첩되는 상기 제1 층간 절연막 상에 마련된, 박막 트랜지스터 기판. - 제 9 항에 있어서,
상기 차광층과 연결된 제1 소스/드레인 패턴;
상기 구동 트랜지스터 상부 전극과 상기 구동 트랜지스터 소스층을 전기적으로 연결하는 제2 소스/드레인 패턴; 및
상기 제1 소스/드레인 패턴과 전기적으로 연결되고, 상기 제2 소스/드레인 패턴과 동일층에 마련되어 스토리지 커패시터를 형성하는 제3 소스/드레인 패턴을 더 포함하는, 박막 트랜지스터 기판. - 제 1 항 내지 제 10 항 중 어느 한 항의 박막 트랜지스터 기판; 및
상기 박막 트랜지스터 기판에 마련된 패드부에 부착되어 디지털 비디오 데이터와 데이터 제어 신호를 수신하고, 상기 데이터 제어 신호에 따라 상기 디지털 비디오 데이터를 아날로그 데이터 전압으로 변환하여 데이터 라인들에 공급하는 소스 드라이브 IC를 포함하는, 표시 장치. - 제 14 항에 있어서,
상기 구동 트랜지스터 소스층과 중첩되는 상부 커패시터 전극을 더 포함하며,
상기 스토리지 커패시터는,
상기 구동 트랜지스터 소스층과 상기 차광층 사이에 마련된 제1 스토리지 커패시터; 및
상기 구동 트랜지스터 소스층과 상기 상부 커패시터 전극 사이에 마련된 제2 스토리지 커패시터를 포함하는, 표시 장치. - 제 15 항에 있어서,
상기 구동 트랜지스터 액티브층과 상기 구동 트랜지스터 상부 전극을 덮는 제1 층간 절연막을 더 포함하며,
상기 상부 커패시터 전극은 상기 구동 트랜지스터 소스층과 중첩되는 상기 제1 층간 절연막 상에 마련된, 표시 장치.
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- 2016-12-16 KR KR1020160172913A patent/KR102799493B1/ko active Active
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- 2017-11-06 CN CN201711077381.3A patent/CN108206010B/zh active Active
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KR20160053376A (ko) * | 2014-11-04 | 2016-05-13 | 엘지디스플레이 주식회사 | 고 개구율 평판 표시장치용 박막 트랜지스터 기판 |
Cited By (10)
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US12374285B2 (en) | 2018-06-28 | 2025-07-29 | Samsung Display Co., Ltd. | Organic light emitting diode display device including transistors having top and bottom gate electrodes |
KR20200100892A (ko) * | 2019-02-18 | 2020-08-27 | 삼성디스플레이 주식회사 | 표시 장치 |
US11871627B2 (en) | 2019-02-18 | 2024-01-09 | Samsung Display Co., Ltd. | Display device having a lower pattern overlapping an active pattern |
US11824061B2 (en) | 2019-03-05 | 2023-11-21 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
US11195861B2 (en) | 2019-04-26 | 2021-12-07 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
KR20210076515A (ko) * | 2019-12-16 | 2021-06-24 | 엘지디스플레이 주식회사 | 박막 트랜지스터 어레이 기판 및 이를 포함하는 전자장치 |
US11594559B2 (en) | 2020-04-20 | 2023-02-28 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
US12080826B2 (en) | 2020-04-20 | 2024-09-03 | Samsung Display Co., Ltd. | Display device and method of manufacturing the same |
US12219815B2 (en) | 2020-12-31 | 2025-02-04 | Lg Display Co., Ltd. | Display device |
CN115732539A (zh) * | 2022-11-25 | 2023-03-03 | 京东方科技集团股份有限公司 | 薄膜晶体管、基板及其制备方法、显示装置 |
Also Published As
Publication number | Publication date |
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CN108206010B (zh) | 2021-01-22 |
US20180175077A1 (en) | 2018-06-21 |
KR102799493B1 (ko) | 2025-04-22 |
CN108206010A (zh) | 2018-06-26 |
US10290658B2 (en) | 2019-05-14 |
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