CN216352263U

CN216352263U - Wear-resistant capacitive touch screen

Info

Publication number: CN216352263U
Application number: CN202122721853.2U
Authority: CN
Inventors: 丘建营
Original assignee: Guangzhou Kdtouch Electronic Co ltd
Current assignee: Guangzhou Kdtouch Electronic Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-19
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a wear-resistant capacitive touch screen which comprises a glass substrate, a circuit board, an adhesive plate and a protective layer, wherein the circuit board is arranged between the glass substrate and the adhesive plate, the protective layer is arranged on the top of the adhesive plate, the circuit board comprises a driving circuit, an isolation layer, a sensing circuit and an insulation layer, the driving circuit is arranged on the top of the isolation layer, and the sensing circuit is arranged on the bottom of the isolation layer. According to the utility model, the device can be damped by the elastic piece in the damping cap, the screen is prevented from contacting the ground and being worn and impacted, the protective layer is higher than the abrasion-resistant polyester layer, the possibility of screen abrasion can be reduced, the abrasion-resistant polyester layer can further carry out abrasion-resistant arrangement on the screen, the longitudinal fixing plate is connected with the glass substrate and the adhesive plate in a clamping manner, and the limiting block can limit the circuit board and reduce the error of the bonding size.

Description

Wear-resistant capacitive touch screen

Technical Field

The utility model relates to the field of capacitive touch screens, in particular to a wear-resistant capacitive touch screen.

Background

The capacitive touch screen technology works by utilizing current induction of a human body, and with the wide application of electronic products such as smart phones and tablet computers and the development of the touch screen technology, the touch screen is applied to electronic products such as smart phones and tablet computers, so that the realization of a human-computer interaction function becomes the trend of the development of the current electronic products.

Most of the existing capacitive touch screens only adhere all parts together through glue solution, so that the adhesion size error is easily generated, internal circuits of the capacitive touch screens are dense, the parts inside the capacitive touch screens are easy to break down when the capacitive touch screens drop, the screens are easy to wear in the using process, and the capacitive touch screens cannot be protected.

Therefore, it is necessary to invent a wearable capacitive touch screen to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wear-resistant capacitive touch screen, wherein the device can be damped through an elastic part in a damping cap, the screen is prevented from contacting the ground and being worn and impacted, a protective layer is higher than a wear-resistant polyester layer, the possibility of screen abrasion can be reduced, the wear-resistant polyester layer can further prevent the screen from being worn, a longitudinal fixing plate is connected with a glass substrate and a bonding plate in a clamping manner, a limiting block can limit a circuit board, and the error of bonding size can be reduced.

In order to achieve the above purpose, the utility model provides the following technical scheme: a wear-resistant capacitive touch screen comprises a glass substrate, a circuit board, an adhesive plate and a protective layer, wherein the circuit board is arranged between the glass substrate and the adhesive plate, the protective layer is arranged at the top of the adhesive plate, the circuit board comprises a driving circuit, an isolation layer, a sensing circuit and an insulating layer, the driving circuit is arranged at the top of the isolation layer, the sensing circuit is arranged at the bottom of the isolation layer, the insulating layer is arranged below the sensing circuit and above the driving circuit, the top of the glass substrate is fixedly connected with a limiting block, empty grooves matched with the limiting block are formed in the lateral sides of the isolation layer and the insulating layer, transverse fixing plates are arranged on the front side and the rear side of the circuit board, longitudinal fixing plates are arranged on the left side and the right side of the circuit board, the transverse fixing plates and the longitudinal fixing plates are connected with the glass substrate in a clamping manner, and are perpendicular to the longitudinal fixing plates, and the structure of the transverse fixing plate is the same as that of the longitudinal fixing plate.

Preferably, the inner part of the protective layer is fixedly connected with an anti-falling layer, the top of the anti-falling layer is bonded with an anti-wear polyester layer, and the thickness of the protective layer is greater than the sum of the thicknesses of the anti-falling layer and the anti-wear polyester layer.

Preferably, the four corners of inoxidizing coating are provided with the mounting, the mounting runs through inoxidizing coating, adhesive sheet and circuit board, and with glass substrate threaded connection, the top fixedly connected with kicking block of mounting, the draw-in groove with kicking block matched with is seted up at the top of inoxidizing coating.

Preferably, the top block of kicking block is connected with the shock attenuation cap, the bottom fixedly connected with fixture block of shock attenuation cap, the avris of kicking block seted up with fixture block matched with fixed slot, the inside fixedly connected with elastic component of shock attenuation cap.

Preferably, the top of the longitudinal fixing plate is integrally connected with a top bump, the bottom of the longitudinal fixing plate is integrally connected with a bottom bump, the top of the glass substrate is provided with a bottom strip groove matched with the bottom bump, and the bottom of the adhesive plate is provided with a top strip groove matched with the top bump.

Preferably, the inner side of the longitudinal fixing plate is fixedly connected with an air cushion, the inner side of the air cushion is fixedly connected with a shock pad, and the circuit board is tightly attached to the shock pad.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. the circuit board can be limited and accurately installed through the limiting blocks and the empty grooves, the transverse fixing plate and the longitudinal fixing plate are prevented from shifting, equipment can be accurately installed, the fixing piece can enhance the stability of the device, and the air cushion and the shock pad can protect the side face of the device;

2. when the screen receives the striking, the inside elastic component of shock attenuation cap can carry out the shock attenuation to the device, prevents that the screen from contacting ground, causes wearing and tearing and striking to the screen, and the protective layer is higher than the polyester layer of resistance to wears, can reduce the possibility of screen wearing and tearing, and the polyester layer of resistance to wears can further carry out the abrasionproof to the screen and decrease the setting.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic bottom view of FIG. 2 according to the present invention;

FIG. 4 is an exploded view of the circuit board of the present invention;

FIG. 5 is an exploded view of the protective layer of the present invention;

FIG. 6 is a schematic cross-sectional view of a longitudinal fixing plate according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 6 according to the present invention;

fig. 8 is a schematic view of the internal structure of the fixing member of the present invention.

Description of reference numerals:

1. a glass substrate; 11. a bottom slot; 12. a limiting block; 2. a circuit board; 21. a drive circuit; 22. an isolation layer; 23. a sensing line; 24. an insulating layer; 25. a transverse fixing plate; 26. a longitudinal fixing plate; 261. A top bump; 262. a bottom bump; 263. an air cushion; 264. a shock pad; 3. bonding a board; 31. a top slot; 4. a protective layer; 41. an anti-falling layer; 42. an abrasion resistant polyester layer; 5. a fixing member; 51. a top block; 52. fixing grooves; 53. a shock-absorbing cap; 54. an elastic member.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

The utility model provides a wear-resistant capacitive touch screen as shown in figures 1, 2, 3, 4, 5 and 8, which comprises a glass substrate 1, a circuit board 2, an adhesive plate 3 and a protective layer 4, wherein the circuit board 2 is arranged between the glass substrate 1 and the adhesive plate 3, the protective layer 4 is arranged on the top of the adhesive plate 3, the circuit board 2 comprises a driving circuit 21, an isolation layer 22, a sensing circuit 23 and an insulating layer 24, the driving circuit 21 is arranged on the top of the isolation layer 22, the sensing circuit 23 is arranged on the bottom of the isolation layer 22, the insulating layer 24 is arranged below the sensing circuit 23 and above the driving circuit 21, the top of the glass substrate 1 is fixedly connected with a limit block 12, the sides of the isolation layer 22 and the insulating layer 24 are both provided with a hollow groove matched with the limit block 12, and the front and back sides of the circuit board 2 are provided with transverse fixing plates 25, the left and right sides of circuit board 2 is provided with longitudinal fixing plate 26, transverse fixing plate 25 and longitudinal fixing plate 26 all are connected with glass substrate 1 block, transverse fixing plate 25 and longitudinal fixing plate 26 mutually perpendicular, and transverse fixing plate 25's structure is the same with longitudinal fixing plate 26's structure.

The inside fixedly connected with of inoxidizing coating 4 prevents falling layer 41, prevent falling the top of layer 41 and adhere to and have wear-resistant polyester layer 42, the thickness of inoxidizing coating 4 is greater than the thickness sum of preventing falling layer 41 and wear-resistant polyester layer 42, and inoxidizing coating 4 is higher than wear-resistant polyester layer 42, can resist wearing and tearing polyester layer 42 and protect, reduces the possibility of wearing and tearing, prevents falling layer 41 and wear-resistant polyester layer 42 and can protect the screen.

The four corners of inoxidizing coating 4 is provided with mounting 5, mounting 5 runs through inoxidizing coating 4, adhesive sheet 3 and circuit board 2, and with 1 threaded connection of glass substrate, the top fixedly connected with kicking block 51 of mounting 5, the draw-in groove with kicking block 51 matched with is seted up at the top of inoxidizing coating 4, can hide mounting 5, and can strengthen the stability of plant equipment.

As shown in fig. 1, 4, 6, 7 and 8: the top block 51's top block is connected with shock attenuation cap 53, shock attenuation cap 53's bottom fixedly connected with fixture block, top block 51's avris seted up with fixture block matched with fixed slot 52, shock attenuation cap 53's inside fixedly connected with elastic component 54 can be with shock attenuation cap 53 block on top block 51, and shock attenuation cap 53's inside elastic component 54 can strengthen shock attenuation cap 53's elasticity, and when electronic equipment fallen carelessly, shock attenuation cap 53 can play absorbing effect, can protect the screen.

The top of the longitudinal fixing plate 26 is integrally connected with a top bump 261, the bottom of the longitudinal fixing plate 26 is integrally connected with a bottom bump 262, the top of the glass substrate 1 is provided with a bottom strip groove 11 matched with the bottom bump 262, the bottom of the adhesive plate 3 is provided with a top strip groove 31 matched with the top bump 261, the longitudinal fixing plate 26 can be fixed between the glass substrate 1 and the adhesive plate 3, and the longitudinal fixing plate 26 can be conveniently and accurately installed.

The inner side of the longitudinal fixing plate 26 is fixedly connected with an air cushion 263, the inner side of the air cushion 263 is fixedly connected with a shock pad 264, and the circuit board 2 is tightly attached to the shock pad 264, so that the circuit board 2 can be protected by shock absorption.

This practical theory of operation:

referring to the attached drawings 1-8 of the specification, firstly, a user can mount the circuit board 2 on the glass substrate 1, and make the empty slots at the sides of the isolation layer 22 and the insulation layer 24 cooperate with the limit blocks 12, so as to limit the circuit board 2, and accurately mount the circuit board and prevent displacement, then, the user can mount the transverse fixing plate 25 and the longitudinal fixing plate 26 around the circuit board 2, press the transverse fixing plate 25 and the longitudinal fixing plate 26 to make the bottom projection 262 at the bottom snap-fit inside the bottom strip slot 11, at this time, the shock-absorbing pad 264 at the side of the longitudinal fixing plate 26 closely contact with the circuit board 2, the air cushion 263 can absorb shock and protect the circuit board 2, then cover the adhesive plate 3 above the circuit board 2, the top strip slot 31 at the bottom of the adhesive plate 3 is snap-fit with the top projection 261, thereby fixing the longitudinal fixing plate 26 and then bonding the protection layer 4 on the top of the insulation layer 24, the anti-falling layer 41 and the anti-abrasion polyester layer 42 are arranged inside the protective layer 4, the screen can be subjected to anti-falling and anti-abrasion treatment, the safety of the device is greatly enhanced, finally, a user can connect the fixing piece 5 inside the device in a threaded mode to enable the fixing piece 5 to penetrate through the protective layer 4, the adhesive plate 3 and the circuit board 2 to be in threaded connection with the glass substrate 1, the top block 51 can be hidden inside the clamping groove, the fixing piece 5 can enhance the stability of the device equipment, and finally, the damping cap 53 is clamped inside the top block 51 by enabling the clamping block at the bottom of the damping cap 53 to enter the fixing groove 52;

referring to the accompanying

drawings

1, 2, 3, 6, 7 and 8, when the screen is impacted, the elastic member 54 inside the shock-absorbing cap 53 can absorb shock to prevent the screen from contacting the ground, and causing abrasion and impact to the screen, wherein the air cushion 263 and the shock-absorbing cushion 264 can protect the side of the device, wherein the protective layer 4 is higher than the anti-abrasion polyester layer 42, and can reduce the possibility of abrasion of the screen, and the anti-abrasion polyester layer 42 can further provide anti-abrasion to the screen.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The utility model provides a wear-resisting capacitive touch screen, includes glass substrate (1), circuit board (2), adhesive sheet (3) and inoxidizing coating (4), its characterized in that: the circuit board (2) is arranged between the glass substrate (1) and the adhesive plate (3), the protective layer (4) is arranged at the top of the adhesive plate (3), the circuit board (2) comprises a driving circuit (21), an isolation layer (22), a sensing circuit (23) and an insulating layer (24), the driving circuit (21) is arranged at the top of the isolation layer (22), the sensing circuit (23) is arranged at the bottom of the isolation layer (22), the insulating layer (24) is arranged below the sensing circuit (23) and above the driving circuit (21), the top of the glass substrate (1) is fixedly connected with a limiting block (12), empty grooves matched with the limiting block (12) are arranged at the sides of the isolation layer (22) and the insulating layer (24), transverse fixing plates (25) are arranged at the front side and the rear side of the circuit board (2), and longitudinal fixing plates (26) are arranged at the left side and the right side of the circuit board (2), horizontal fixed plate (25) and vertical fixed plate (26) all are connected with glass substrate (1) block, horizontal fixed plate (25) and vertical fixed plate (26) mutually perpendicular, and the structure of horizontal fixed plate (25) is the same with the structure of vertical fixed plate (26).

2. A wear resistant capacitive touch screen according to claim 1, wherein: the anti-falling protective layer is characterized in that an anti-falling layer (41) is fixedly connected to the inner portion of the protective layer (4), an anti-abrasion polyester layer (42) is bonded to the top of the anti-falling layer (41), and the thickness of the protective layer (4) is larger than the sum of the thicknesses of the anti-falling layer (41) and the anti-abrasion polyester layer (42).

3. A wear resistant capacitive touch screen according to claim 1, wherein: the four corners of inoxidizing coating (4) are provided with mounting (5), mounting (5) run through inoxidizing coating (4), adhesive sheet (3) and circuit board (2), and with glass substrate (1) threaded connection, the top fixedly connected with kicking block (51) of mounting (5), the draw-in groove with kicking block (51) matched with has been seted up at the top of inoxidizing coating (4).

4. A wear resistant capacitive touch screen according to claim 3, wherein: the top block of kicking block (51) is connected with shock attenuation cap (53), the bottom fixedly connected with fixture block of shock attenuation cap (53), avris of kicking block (51) seted up with fixture block matched with fixed slot (52), the inside fixedly connected with elastic component (54) of shock attenuation cap (53).

5. A wear resistant capacitive touch screen according to claim 1, wherein: the top of the longitudinal fixing plate (26) is integrally connected with a top lug (261), the bottom of the longitudinal fixing plate (26) is integrally connected with a bottom lug (262), the top of the glass substrate (1) is provided with a bottom strip groove (11) matched with the bottom lug (262), and the bottom of the adhesive plate (3) is provided with a top strip groove (31) matched with the top lug (261).

6. A wear resistant capacitive touch screen according to claim 1, wherein: the inner side of the longitudinal fixing plate (26) is fixedly connected with an air cushion (263), the inner side of the air cushion (263) is fixedly connected with a shock pad (264), and the circuit board (2) is tightly attached to the shock pad (264).