DISPLAY APPARATUS WITH A FINGERPRINT SENSOR

According to the present application, provided is a display device capable of improving accuracy of fingerprint recognition. The display device includes: a display module displaying an image; and a fingerprint sensor disposed under the display module, generating and receiving at least one ultrasonic...

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Bibliographic Details
Main Authors MANHYEOP HAN, KIDUK KIM, JI HO CHO, JUNGHOON LEE, YONGKYUN CHOI, JAIHYUK LEE
Format Patent
LanguageEnglish
Korean
Published 01.02.2021
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SOUND-PRODUCING DEVICES
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Summary:According to the present application, provided is a display device capable of improving accuracy of fingerprint recognition. The display device includes: a display module displaying an image; and a fingerprint sensor disposed under the display module, generating and receiving at least one ultrasonic wave, and recognizing a fingerprint of a user in contact with the surface of the display module. The fingerprint sensor includes a fingerprint sensor substrate including a fingerprint sensor array, a first electrode disposed under the fingerprint sensor substrate, a piezoelectric member disposed under the first electrode, a second electrode disposed under the piezoelectric member, and a diffuse reflection member disposed under the second electrode. 본 출원에 따른 표시 장치는 영상을 표시하는 표시모듈, 및 표시모듈의 하부에 배치되고, 적어도 하나의 초음파를 생성하고, 수신하여, 표시모듈의 표면에 접촉된 사용자의 지문을 인식하는 지문 센서를 포함하고, 지문 센서는, 지문 센서 어레이를 포함하는 지문 센서 기판, 지문 센서 기판 하부에 배치되는 제1 전극, 제1 전극 하부에 배치되는 압전부재, 압전부재 하부에 배치되는 제2 전극, 및 제2 전극 하부에 배치되는 난반사 부재를 포함할 수 있다.
Bibliography:Application Number: KR20190088374