KR101640638B1 - 투명 전기 차폐층을 구비하는 터치 스크린 디스플레이 - Google Patents
투명 전기 차폐층을 구비하는 터치 스크린 디스플레이 Download PDFInfo
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- KR101640638B1 KR101640638B1 KR1020130082734A KR20130082734A KR101640638B1 KR 101640638 B1 KR101640638 B1 KR 101640638B1 KR 1020130082734 A KR1020130082734 A KR 1020130082734A KR 20130082734 A KR20130082734 A KR 20130082734A KR 101640638 B1 KR101640638 B1 KR 101640638B1
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Abstract
Description
도 1b는 터치 스크린 디스플레이(종래 기술)에 대한 단순화된 단면도를 보여준다.
도 1c는 종래의 IPS LCD(종래 기술)의 단면을 보여준다.
도 2a는 제1 실시예에서의 투명 도전층을 구비하는 IPS LCD의 스택을 보여준다.
도 2b는 제2 실시예에서의 투명 도전층을 구비하는 IPS LCD의 스택을 보여준다.
도 3a는 도 2a 또는 도 2b에 도시된 바와 같이 투명 도전층을 구비하는 제1 예의 터치 스크린 디스플레이를 보여준다.
도 3b는 도 2a 또는 도 2b에 도시된 바와 같이 투명 도전층을 구비하는 제2 예의 터치 스크린 디스플레이를 보여준다.
도 4는 CF 유리 상단에 ITO 코팅을 구히바는 IPS LCD의 다양한 층들로부터의 샘플 광 반사를 보여준다.
도 5는 도 4의 영역(1)의 상이한 코팅들로부터의 다양한 반사에 의해 기여되는 샘플 총 반사를 보여준다.
도 6은 도 4의 영역(2)의 상이한 코팅들로부터의 다양한 반사에 의해 기여되는 샘플 총 반사를 보여준다.
도 7은 실시예에서의 터치 스크린 디스플레이를 위한 단순화된 시스템 다이어그램이다.
도 8a는 LCM 잡음, 및 도 7의 터치 스크린 디스플레이를 위한 감지 증폭기 내로 결합되는 LCM 잡음을 보여준다.
도 8b는 도 8a의 LCM 잡음 스펙트럼을 보여준다.
도 9a는 도 4에 도시된 바와 같이 ITO를 구비하는 정면 편광기의 제1 접지 구성의 상부도를 보여준다.
도 9b는 어떠한 도전층 및/또는 접지도 갖지 않는 정면 편광기의 제2 접지 구성의 상부도를 보여준다.
도 9c는 도 2a 또는 도 2b에 도시된 바와 같이 AGNW를 구비하는 정면 편광기의 제3 접지 구성의 상부도를 보여준다.
도 9d는 도 9a-9c의 접지 구성의 샘플 잡음의 비교를 보여준다.
도 10a는 도 2a 또는 도 2b에 도시된 바와 같이 AGNW를 구비하는 터치 스크린 디스플레이를 위한 접지 구성의 상부도를 보여준다.
도 10b는 도 10a 및 도 9b의 접지 구성에 대한 샘플 잡음 곡선을 보여준다.
Claims (38)
- 편광기(polarizer)로서,
상단 표면 및 반대의 하단 표면을 갖는 편광기 컴포넌트 - 상기 하단 표면은 액정 디스플레이(LCD)에 대한 컬러 필터층에 결합되도록 구성됨 -;
상기 편광기 컴포넌트의 상기 상단 표면 위에 배치된 투명 도전층 - 상기 투명 도전층은 상기 LCD를 터치 패널로부터 전기적으로 차폐하도록 구성됨 -;
상기 투명 도전층 위에 배치된 코팅층;
상기 투명 도전층의 제1 코너에 있는 제1 도전성 테이프;
상기 투명 도전층의 제2 코너에 있는 제2 도전성 테이프 - 상기 제2 코너는 상기 제1 코너와 상이함 -; 및
상기 제1 도전성 테이프와 상기 제2 도전성 테이프를 접속하도록 구성된 도전성 바(conductive bar)
을 포함하는 편광기. - 제1항에 있어서,
상기 투명 도전층은 실버 나노 와이어(AGNW: silver nano wire) 메시를 포함하는 편광기. - 제1항에 있어서,
상기 투명 도전층은 5 ohm/sq 내지 600 ohm/sq의 범위의 시트 저항을 갖는 편광기. - 삭제
- 제1항에 있어서,
상기 투명 도전층은 97% 이상의 투과율을 갖는 편광기. - 제1항에 있어서,
상기 투명 도전층은 0.5% 이하의 반사율을 갖는 편광기. - 제1항에 있어서,
상기 투명 도전층은 0.3% 이하의 헤이즈(haze)를 갖는 편광기. - 제1항에 있어서,
상기 편광기 컴포넌트는,
제1 접착제 층;
상기 접착제 층 위에 배치된 광학 필름 층 - 상기 광학 필름은 광을 편광시키도록 구성됨 -;
상기 광학 필름 층 위에 배치된 제2 접착제 층; 및
상기 제2 접착제 층 위에 배치된 투명 유리층
을 포함하는 편광기. - 삭제
- 제1항에 있어서,
상기 코팅층은 반사 방지(AR: anti-reflection) 코팅, 눈부심 방지(AG: anti-glare) 코팅, 지문 방지(AF: anti-fingerprint), 하드 코팅 및 얼룩 방지(anti-smudge) 코팅으로 구성된 그룹으로부터 선택되는 편광기. - LCD 디바이스로서,
정면 편광기;
상기 정면 편광기의 상단 표면 상의 투명 도전층;
상기 정면 편광기의 하단 표면에 결합된 컬러 필터층;
상기 LCD의 스택의 하단에 있는 후면 편광기;
상기 후면 편광기와 상기 컬러 필터층 사이의 액정층;
상기 투명 도전층의 제1 코너에 있는 제1 도전성 테이프;
상기 투명 도전층의 제2 코너에 있는 제2 도전성 테이프 - 상기 제2 코너는 상기 제1 코너와 가장 가까운 코너임 -; 및
상기 제1 도전성 테이프와 상기 제2 도전성 테이프를 접속하도록 구성된 도전성 바(conductive bar)
를 포함하는 LCD 디바이스. - 제11항에 있어서,
상기 투명 도전층은 실질적으로 직사각형 형상을 갖는 LCD 디바이스. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 휴대용 전자 디바이스로서,
터치 패널; 및
액정 디스플레이(LCD)
를 포함하고,
상기 LCD는,
상기 터치 패널의 하단 표면에 결합된 정면 편광기;
상기 정면 편광기의 상단 표면 상의 투명 도전층;
상기 정면 편광기의 하단 표면에 결합된 컬러 필터층;
상기 컬러 필터층과 상기 정면 편광기의 하단 표면 사이의 인듐 주석 산화물 층;
상기 LCD의 스택의 하단에 있는 후면 편광기; 및
상기 후면 편광기와 상기 컬러 필터층 사이의 액정층
을 포함하는 휴대용 전자 디바이스. - 제22항에 있어서,
상기 터치 패널의 상단 표면 상의 커버 유리층을 더 포함하는 휴대용 전자 디바이스. - 제22항에 있어서,
상기 투명 도전층의 상단 표면 상의 제1 코팅층; 상기 터치 패널의 하단 표면 상의 제2 코팅층; 및 상기 터치 패널과 상기 LCD 사이의 에어 갭을 더 포함하는 휴대용 전자 디바이스. - 제22항에 있어서,
상기 투명 도전층은 실질적으로 직사각형 형상을 갖는 휴대용 전자 디바이스. - 제25항에 있어서,
상기 투명 도전층의 제1 코너에 있는 제1 도전성 테이프;
상기 투명 도전층의 제2 코너에 있는 제2 도전성 테이프 - 상기 제2 코너는 상기 제1 코너와 가장 가까운 코너임 -; 및
상기 제1 도전성 테이프와 상기 제2 도전성 테이프를 접속하도록 구성된 도전성 바
를 포함하는 휴대용 전자 디바이스. - 제26항에 있어서,
상기 투명 도전층의 제3 코너에 있는 제3 도전성 테이프를 더 포함하는 휴대용 전자 디바이스. - 제27항에 있어서,
상기 투명 도전층의 제4 코너에 있는 제4 도전성 테이프를 더 포함하는 휴대용 전자 디바이스. - 제28항에 있어서,
상기 제3 도전성 테이프와 상기 제4 도전성 테이프를 접속하도록 구성된 도전성 바를 더 포함하는 휴대용 전자 디바이스. - 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
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KR20190080113A (ko) * | 2017-12-28 | 2019-07-08 | 엘지디스플레이 주식회사 | 지문 인식이 가능한 표시 장치 |
KR102524554B1 (ko) | 2017-12-28 | 2023-04-20 | 엘지디스플레이 주식회사 | 지문 인식이 가능한 표시 장치 |
Also Published As
Publication number | Publication date |
---|---|
TWI498782B (zh) | 2015-09-01 |
US20160097882A1 (en) | 2016-04-07 |
US9612377B2 (en) | 2017-04-04 |
KR20140009937A (ko) | 2014-01-23 |
US20140016043A1 (en) | 2014-01-16 |
TW201413529A (zh) | 2014-04-01 |
US9329314B2 (en) | 2016-05-03 |
CN103543486B (zh) | 2016-08-10 |
CN103543486A (zh) | 2014-01-29 |
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