CN213633890U

CN213633890U - Hidden polarizer with screen biological identification function

Info

Publication number: CN213633890U
Application number: CN202022507742.7U
Authority: CN
Inventors: 盛军辉; 于晓丽
Original assignee: Shenzhen Aitepu Photoelectric Technology Co ltd
Current assignee: Shenzhen Aitepu Photoelectric Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-06
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a hidden polarizer with screen biological identification function, which comprises a polarizer original plate; the polarizer original plate consists of two TAC layers, a PVA layer, a pressure-sensitive adhesive and a release film; a plurality of capacitors are embedded in the PVA layer; a plurality of the capacitors form a capacitance matrix; the shape of the capacitor matrix is finger-shaped; the lower end of the capacitor matrix is provided with an insulating polar plate; the lower end of the insulating polar plate is provided with a microprocessor; the micro processor is provided with a metal wire which is contacted with the outside; the structure of the polarizer foundation is arranged, so that the original auxiliary imaging function of the polarizer is ensured; meanwhile, a capacitance matrix and an insulating pole plate are arranged inside the polaroid to form a capacitance induction type fingerprint sensor; the polarizer is matched with a micro processor, so that the polarizer has the function of collecting fingerprints; the polaroid is applied to various screens and display screens, so that various screens have the function of fingerprint acquisition, and the development of the screen field is facilitated.

Description

Hidden polarizer with screen biological identification function

Technical Field

The utility model relates to a polaroid field especially relates to hidden polaroid with screen biological identification function.

Background

The polaroids are all called as polaroids, the imaging of the liquid crystal display is dependent on polarized light, all liquid crystals have front and rear polaroids which are tightly attached to liquid crystal glass to form the liquid crystal sheet with the total thickness of about 1mm, and if any polaroid is omitted, the liquid crystal sheet cannot display images.

The function of the polarizer is only to assist imaging in the screen.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art scheme, the utility model provides a hidden polaroid with screen biological identification function can possess the function of discernment biological characteristic.

The utility model provides a technical scheme that its technical problem adopted is: the hidden polarizer with screen biological identification function comprises a polarizer original plate; the polarizer original plate consists of two TAC layers, a PVA layer, a pressure-sensitive adhesive and a release film; the TAC layer, the PVA layer, the TAC layer, the pressure-sensitive adhesive and the release film are sequentially stacked; a plurality of capacitors are embedded in the PVA layer; a plurality of the capacitors form a capacitance matrix; the shape of the capacitor matrix is finger-shaped; the lower end of the capacitor matrix is provided with an insulating polar plate; the lower end of the insulating polar plate is provided with a microprocessor; the microprocessor is provided with a metal wire which is in contact with the outside.

Furthermore, an identification layer is arranged on one side of the polarizer original plate, which is contacted with the finger;

furthermore, a light-emitting plate is arranged on one side of the polarizer original plate, which is not contacted with the fingers; the shape and the size of the light-emitting plate are the same as those of the capacitor matrix; the light emitting plate is aligned with the capacitor matrix;

further, protective films are arranged on the upper side and the lower side of the polarizer original plate;

furthermore, an insulating protective layer is arranged outside the metal wire;

further, the TAC layer is subjected to sanding treatment.

Compared with the prior art, the beneficial effects of the utility model are that: the hidden polaroid with the screen biological identification function of the utility model is provided with the structure of the polaroid base, thereby ensuring the original auxiliary imaging function of the polaroid; meanwhile, a capacitance matrix and an insulating pole plate are arranged inside the polaroid to form a capacitance induction type fingerprint sensor; the polarizer is matched with a micro processor, so that the polarizer has the function of collecting fingerprints; the polaroid is applied to various screens and display screens, so that various screens have the function of fingerprint acquisition, and the development of the screen field is facilitated.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is a schematic view of the interior of a PVA layer.

Reference numbers in the figures: 1-polarizer original plate; a 2-TAC layer; 3-a PVA layer; 4-pressure sensitive adhesive; 5-a release film; 6-a capacitance matrix; 7-an insulating polar plate; 8-a microprocessor; 9-a marking layer; 10-a light-emitting panel; 11-protective film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The hidden polarizer with screen biological identification function of the present invention is described in detail below with reference to fig. 1-2: the hidden polarizer with screen biological identification function comprises a polarizer original plate 1; the polarizer original plate 1 consists of two layers of TAC (TAC) layers 2, a PVA (polyvinyl alcohol) layer 3, a pressure-sensitive adhesive 4 and a release film 5; the TAC layer 2, the PVA layer 3, the TAC layer 2, the pressure-sensitive adhesive 4 and the release film 5 are sequentially stacked; a plurality of capacitors are embedded in the PVA layer 3; a plurality of the capacitors form a capacitance matrix 6; the capacitor matrix 6 is in the shape of a finger; the lower end of the capacitor matrix 6 is provided with an insulating polar plate 7; the lower end of the insulating polar plate 7 is provided with a microprocessor 8; the microprocessor 8 is provided with a metal wire to contact with the outside.

An identification layer 9 is arranged on one side of the polarizer original plate 1, which is contacted with a finger; a light-emitting plate 10 is arranged on one side of the polarizer original plate 1, which is not contacted with fingers; the shape and size of the light-emitting plate 10 are the same as those of the capacitor matrix 6; said light emitting plate 10 is aligned with said capacitive matrix 6; protective films 11 are arranged on the upper side and the lower side of the polarizer original plate 1; an insulating protective layer is arranged outside the metal wire; the TAC layer 2 is sanded.

The working principle is as follows: the PVA layer 3 is a core part of the polarizer, which plays a role of polarization; the PVA layer 3 is supported by the two TAC layers 2, so that the PVA layer 3 is ensured not to retract and plays a certain role in protection; the pressure-sensitive adhesive 4 is an adhesive material for attaching the polaroid to the LCD panel, and determines the adhesive property of the polaroid; the release film 5 plays a role in protecting the pressure-sensitive adhesive 4, and ensures that no bubbles are generated when the polaroid is attached to the LCD panel; the light emitting panel 10 lights up to guide the user to press a finger to a designated area; when a user places a finger on the front surface of the polaroid, the skin becomes a polar plate, the capacitance of each point is changed along with the distance between each position of the fingerprint and the polaroid, and the fingerprint image is obtained through the processing of the microprocessor 8, so that the function of identifying the biological characteristics is achieved.

To sum up, the hidden polarizer with the screen biological identification function of the utility model is provided with the structure of the polarizer foundation, thereby ensuring the original auxiliary imaging function of the polarizer; meanwhile, a capacitance matrix and an insulating pole plate are arranged inside the polaroid to form a capacitance induction type fingerprint sensor; the polarizer is matched with a micro processor, so that the polarizer has the function of collecting fingerprints; the polaroid is applied to various screens and display screens, so that various screens have the function of fingerprint acquisition, and the development of the screen field is facilitated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The hidden polarizer with the screen biological identification function is characterized by comprising a polarizer original plate; the polarizer original plate consists of two TAC layers, a PVA layer, a pressure-sensitive adhesive and a release film; the TAC layer, the PVA layer, the TAC layer, the pressure-sensitive adhesive and the release film are sequentially stacked;

a plurality of capacitors are embedded in the PVA layer; a plurality of the capacitors form a capacitance matrix; the shape of the capacitor matrix is finger-shaped; the lower end of the capacitor matrix is provided with an insulating polar plate; the lower end of the insulating polar plate is provided with a microprocessor; the microprocessor is provided with a metal wire which is in contact with the outside.

2. The concealed polarizer with screen biometric identification function according to claim 1, wherein: and an identification layer is arranged on one side of the polarizer original plate, which is contacted with the finger.

3. The concealed polarizer with screen biometric identification function according to claim 1, wherein: a luminous plate is arranged on one side of the polarizer original plate, which is not contacted with the finger; the shape and the size of the light-emitting plate are the same as those of the capacitor matrix; the light emitting panel is aligned with the capacitive matrix.

4. The concealed polarizer with screen biometric identification function according to claim 1, wherein: and protective films are arranged on the upper side and the lower side of the polaroid original plate.

5. The concealed polarizer with screen biometric identification function according to claim 1, wherein: and an insulating protective layer is arranged outside the metal wire.

6. The concealed polarizer with screen biometric identification function according to claim 1, wherein: the TAC layer is subjected to sanding treatment.