Display device and driving method of display device

Abstract

The invention discloses a display device and a driving method of the display device, and belongs to the technical field of display. The display device comprises a display panel, a display area of the display panel is provided with multiple photosensitive sensors at intervals, a light output side of the display panel is provided with at least one auxiliary panel, the auxiliary panels can form multiple photic areas arranged at intervals, the spacings among the multiple photic areas forms a shade area, and light emitted by an object located above the auxiliary panel can form an image of the object on the photosensitive sensor through the photic area. According to the display device, there is no need to independently set a recognition area for an object recognition (finger recognition) module, object recognition can be achieved directly at the display area of the display device, thus narrow border design can be achieved, and the cost is saved. Meanwhile, when the photic area is utilized to image, light outwards emitted around an object area can be absorbed by the shade area, therefore interference light can be reduced, and thus the accuracy of the object recognition can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a driving method including the display device. Background technique [0002] Generally, with the development of fingerprint recognition technology, it has been widely used in many fields, for example, mobile phones, tablet computers and TVs in electronic equipment terminals; access control and safes in security protection systems, etc. The traditional methods of fingerprint collection mainly include optical, capacitive and ultrasonic imaging technologies. Among them, the optical fingerprint recognition technology has a relatively large recognition range and relatively low cost. Therefore, the optical fingerprint recognition technology has a relatively large application range. wide. [0003] At present, the optical fingerprint recognition technology used in mobile terminals such as liquid crystal displays, including mobile phones, works as follows: a...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned fingerprint recognition process, due to the low transmittance of the liquid crystal layer, the light energy of the light beam of the backlight in the above-mentioned liquid crystal display that reaches the photoelectric sensor after passing through the liquid crystal layer twice is very low, and the photoelectric sensor only receives A very small part of the light beam diffusely reflected by the finger, and the light energy difference of the divergent light diffusely reflected by the valley and ridge of the fingerprint is extremely small, and there is interference of ambient light between the valleys and ridges of the fingerprint, so The above-mentioned liquid crystal display is difficult to accurately identify fingerprints

Images