KR102630571B1 - 광학식 이미지 인식 센서 내장형 평판 표시장치 - Google Patents
광학식 이미지 인식 센서 내장형 평판 표시장치 Download PDFInfo
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Abstract
Description
도 2는 도 1에 의한 지향성 광 기판 내부에서의 광 경로를 나타내는 단면도.
도 3은 본 발명의 제1 실시 예에 의한 지향성 광 유닛과 광 인식 센서를 포함하는 광학식 이미지 센서 내장형 평판 표시장치의 구조를 나타내는 도면.
도 4는 본 발명의 제2 실시 예에 의한 지향성 광 유닛과 광 인식 센서를 포함하는 광학식 이미지 센서 내장형 평판 표시장치의 구조를 나타내는 도면.
도 5는 본 발명의 제1 응용 예에 의한 지향성 광 유닛과 광 인식 센서를 포함하는 광학식 이미지 센서 내장형 액정 표시장치의 구조를 나타내는 단면도.
도 6은 본 발명의 제2 응용 예에 의한 지향성 광 유닛과 광 인식 센서를 포함하는 광학식 이미지 센서 내장형 유기발광 다이오드 표시장치의 구조를 나타내는 단면도.
CP: 커버 기판 CHOE: 입광 소자
VHOE: 출광 소자 PHOE: 수평 시준 소자
GHOE: 검출광 조절 소자
LR: 저 굴절 층 LS: 광원
100: 입사광 200: 진행광
201: 수평 시준 진행광 210: 전반사광
300: 출사광 400: 검출광
500: 흡수광 SA: 이미지 센싱 영역
Claims (6)
- 표시 영역과 비 표시 영역이 정의된 표시 패널; 그리고
상기 표시 패널을 수용하는 길이와 폭 그리고 일정한 두께를 갖고, 상기 표시 패널의 상부 표면에 면 부착된 지향성 광 유닛을 포함하되,
상기 지향성 광 유닛은,
상기 길이와 상기 폭에 대응하는 면적을 갖는 커버 기판;
상기 커버 기판의 하부 표면에서, 상기 표시 패널의 표시 영역에 대응하여 배치된 출광 소자;
상기 커버 기판의 하부 표면에서, 상기 출광 소자와 중첩되지 않도록 상기 출광 소자의 일측변에서 상기 표시 패널의 표시 영역 외측에 배치된 입광 소자;
상기 출광 소자 및 상기 입광 소자의 하부 표면에 배치되며, 상기 표시 패널의 상기 상부 표면에 면 부착되며, 상기 커버 기판 및 상기 출광 소자보다 낮은 굴절율을 갖는 저 굴절층;
상기 저 굴절층 하부 표면에서 상기 출광 소자 및 상기 입광 소자와 중첩되도록 배치된 검출광 조절 소자; 그리고
상기 표시 패널의 상기 일측변에서 상기 입광 소자와 대향하도록 배치된 광원을 구비하는 이미지 인식 센서 내장형 평판 표시장치.
- 제 1 항에 있어서,
상기 광원은, 상기 입광 소자의 표면에 정의된 입사점으로 입사광을 제공하며;
상기 입광 소자는, 상기 입사광을 상기 커버 기판 내부에서 전반사하는 입사각을 갖는 진행광으로 전환하여 상기 커버 기판 내부로 입사시키는 홀로그래피 패턴을 구비하며;
상기 출광 소자는, 상기 진행광의 일부를, 상기 커버 기판의 상부 표면에서는 전반사되고 상기 저 굴절층은 투과하는 조건을 만족하는, 반사각을 갖는 상기 검출광으로 전환하는 홀로그래피 패턴을 구비하며; 그리고
상기 검출광 조절 소자는, 상기 검출광의 진행 방향을 상기 표시 패널의 수직 방향으로 전환하는 홀로그래피 패턴을 구비하는 이미지 인식 센서 내장형 평판 표시장치.
- 제 2 항에 있어서,
상기 진행광은, 상기 폭 방향 축과 상기 길이 방향 축으로 이루어진 수평 평면에서는 확산각을 가지며, 상기 길이 방향 축과 상기 두께 방향 축으로 이루어진 수직 평면에서는 시준된 상태를 유지하며;
상기 입사각은, 상기 출광 소자와 상기 저 굴절 층과의 계면에서의 전반사 임계각보다 큰 값을 갖고; 그리고
상기 반사각은, 상기 커버 기판과 공기층과의 계면에서의 전반사 임계각보다는 크고, 상기 출광 소자와 상기 저 굴절 층과의 계면에서의 전반사 임계각보다는 작은 값을 갖는 이미지 인식 센서 내장형 평판 표시장치.
- 제 3 항에 있어서,
상기 확산각은,
상기 입사점에서 상기 입광 소자와 대향하는 상기 커버 기판의 타측변의 두 끝점을 각각 연결하는 두 선분이 이루는 내측 각도 이상인 이미지 인식 센서 내장형 평판 표시장치.
- 제 3 항에 있어서,
상기 입광 소자에서 상기 진행광이 진행하는 방향으로 일정 거리 이격하여, 상기 폭을 가로질러 배치된 수평 시준 소자를 더 포함하되,
상기 확산각은,
상기 입광 소자의 입사점에서 상기 수평 시준 소자의 두 끝점을 각각 연결하는 두 선분이 이루는 내측 각도에 상응하며,
상기 수평 시준 소자는, 상기 확산각을 갖는 상기 진행광을 상기 폭에 대응하도록 상기 수평 평면에서 수평 시준하는 홀로그래피 패턴을 구비한 이미지 인식 센서 내장형 평판 표시장치.
- 제 1 항에 있어서,
상기 광원은,
단면 형상이 정원형인 시준광(collimated light)을 제공하는 이미지 인식 센서 내장형 평판 표시장치.
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KR1020160160263A KR102630571B1 (ko) | 2016-11-29 | 2016-11-29 | 광학식 이미지 인식 센서 내장형 평판 표시장치 |
JP2017220542A JP6553155B2 (ja) | 2016-11-29 | 2017-11-16 | 光学式イメージ認識センサー内蔵型平板表示装置 |
US15/819,992 US10514488B2 (en) | 2016-11-29 | 2017-11-21 | Flat panel display embedding optical imaging sensor |
DE102017128102.9A DE102017128102A1 (de) | 2016-11-29 | 2017-11-28 | Flachpanelanzeige, die optischen bildgebungssensor einbettet |
GB1719753.4A GB2558774B (en) | 2016-11-29 | 2017-11-28 | Flat panel display embedding optical imaging sensor |
CN201711223169.3A CN108121483B (zh) | 2016-11-29 | 2017-11-29 | 嵌入有光学成像传感器的平板显示器 |
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US10514488B2 (en) | 2019-12-24 |
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JP6553155B2 (ja) | 2019-07-31 |
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