Touch display module and electronic equipment

Abstract

The invention discloses a touch display module and electronic equipment, and relates to the technical field of optical fingerprint identification, for solving the problems that in the fingerprint identification process, a substrate of a touch substrate easily affects the polarization state of passing light, so that optical energy loss is generated when the light is emitted to a fingerprint identification receiving end through a polarizer and the success rate of fingerprint identification under a screen is reduced. The touch display module comprises a touch substrate located on the light emitting side of a display panel, wherein the base of the touch substrate has a preset phase difference, so as to enable the difference between the energy of the first light ray emitted by the display paneland the energy of the second light ray entering a fingerprint recognition module to be not larger than a threshold value, wherein the second light ray is a light ray which is irradiated to the fingerprint recognition module after the first light ray is reflected by an external object and then penetrates through the polarizing structure, the touch substrate and the display panel. The touch displaymodule provided by the invention is used for realizing a touch display function.

Description

technical field [0001] The invention relates to the technical field of optical fingerprint identification, in particular to a touch display module and electronic equipment. Background technique [0002] With the promotion of full screens, the space left for the unlocking system is getting smaller and smaller. At present, the unlocking method widely used in full screens is to identify the unlocked fingerprints through the optical under-screen fingerprint recognition system, so as to judge whether the unlocking is satisfied. Conditions, to achieve the corresponding unlocking function. [0003] The core of this optical under-screen fingerprint recognition system is pinhole imaging, that is, using the light emitted by the display screen as a light source to illuminate the fingerprint, the light reflected from the fingerprint passes through the pinhole, and is imaged to the receiving end. After photoelectric conversion, the image of the fingerprint is formed for comparison and i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a touch display module and electronic equipment, which are used to solve the problem that the base of the touch substrate easily affects the polarization state of the passing light during the fingerprint recognition process, resulting in the light passing through the polarizer. When it is irradiated to the fingerprint recognition receiving end, light energy loss occurs, which reduces the success rate of fingerprint recognition under the screen.

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