首页>
外国专利>
ULTRASONIC FINGERPRINT SENSOR APPARATUS, DISPLAY DEVICE, METHOD OF DETECTING FINGERPRINT INFORMATION, AND METHOD OF FABRICATING ULTRASONIC FINGERPRINT SENSOR APPARATUS
ULTRASONIC FINGERPRINT SENSOR APPARATUS, DISPLAY DEVICE, METHOD OF DETECTING FINGERPRINT INFORMATION, AND METHOD OF FABRICATING ULTRASONIC FINGERPRINT SENSOR APPARATUS
展开▼
机译:超声指纹传感器装置,显示装置,检测指纹信息的方法,以及制造超声指纹传感器装置的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An ultrasonic fingerprint sensor apparatus is provided. The ultrasonic fingerprint sensor apparatus includes a base substrate; a first electrode layer on the base substrate, and including an array of a plurality of first electrodes spaced apart from each other by an inter-electrode region; a piezoelectric layer on a side of the first electrode layer away from the base substrate; a second electrode layer on a side of the piezoelectric layer away from the base substrate, and including one or more second electrodes; and a first reference electrode layer configured to provide a first reference voltage. An orthographic projection of the first electrode layer on the base substrate is substantially non-overlapping with an orthographic projection of the second electrode layer on the base substrate. The first electrode layer and the first reference electrode layer are between the base substrate and the piezoelectric layer.
展开▼