CN220137668U - Touch screen and terminal equipment - Google Patents

Abstract

The utility model discloses a touch screen and terminal equipment, wherein the touch screen comprises a cover plate, a display layer, a first circuit layer and a second circuit layer, wherein the display layer is arranged on one side of the cover plate; the first circuit layer is arranged between the cover plate and the display layer; the second circuit layer is arranged between the first circuit layer and the display layer; the projection of the first circuit layer on the second circuit layer is positioned in the second circuit layer, the second circuit layer comprises a second touch control area and a second wiring area, the second touch control area is connected between the first circuit layer and the display layer, one end of the second wiring area is connected with the second touch control area, and the second wiring area bends towards the display layer until the other end of the second wiring area is connected with the periphery of the display layer. The touch screen and the terminal equipment can bend the first circuit layer or the second circuit layer so as to realize the design of the narrow frame of the touch screen.

Description

Touch screen and terminal equipment

Technical Field

The present utility model relates to the field of touch screens, and in particular, to a touch screen and a terminal device.

Background

The touch screen is external input equipment with wider and wider application, and can realize input by slightly touching the touch panel through a finger or an electronic pen, so that the man-machine interaction is more direct, and the touch screen has the characteristics of simplicity, rapidness, humanization and the like.

However, as the touch screen in the prior art shown in fig. 1 to 3 includes a cover glass 01, an upper circuit layer 02, a lower circuit layer 03 and a display layer 04 which are stacked, wherein the edge portions of the upper circuit layer 02 and the lower circuit layer 03 have a lead a, the lead a corresponds to a non-display area 01a of the cover glass 01, and the non-display area 01a of the cover glass 01 is difficult to be reduced under the condition that the width of the lead a and the distance between the leads a are difficult to be changed, and further narrow frame design of the touch screen is difficult to be realized.

Disclosure of Invention

The embodiment of the utility model discloses a touch screen and terminal equipment, which can bend a first circuit layer or a second circuit layer so as to realize the design of a narrow frame of the touch screen.

To achieve the above object, in a first aspect, the present utility model discloses a touch screen, including:

a cover plate;

the display layer is arranged on one side of the cover plate, and the light emergent side of the display layer faces the cover plate;

the first circuit layer is arranged between the cover plate and the display layer; and

the second circuit layer is arranged between the first circuit layer and the display layer;

the first circuit layer comprises a first touch control area and a first wiring area, the first touch control area is connected between the second circuit layer and the cover plate, one end of the first wiring area is connected with the first touch control area, and the first wiring area is bent towards the second circuit layer until the other end of the first wiring area is connected with the second circuit layer and/or the periphery side of the display layer; or alternatively

The projection of the first circuit layer on the second circuit layer is positioned in the second circuit layer, the second circuit layer comprises a second touch control area and a second wiring area, the second touch control area is connected between the first circuit layer and the display layer, one end of the second wiring area is connected with the second touch control area, and the second wiring area is bent towards the display layer to the other end of the second wiring area and is connected with the periphery of the display layer.

In an embodiment of the first aspect of the present utility model, two first routing areas located on opposite sides of the first touch area are bent towards the second circuit layer to the other end of the second routing area, and are connected to the second circuit layer and/or the periphery of the display layer; or alternatively

And the two second wiring areas positioned on two opposite sides of the second touch control area are bent towards the display layer to the other end of the second wiring area and are connected with the display layer.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the first trace includes a first portion and a second portion, the first portion is connected to the first touch area, the second portion is connected to the first portion, and the second portion is connected to a peripheral side of the second circuit layer and/or the display layer, and a first bending portion is formed at a connection position of the first portion and the second portion; or alternatively

The second wiring area comprises a third part and a fourth part, the third part is connected with the second touch area, the fourth part is connected with the third part, the fourth part is connected with the periphery of the display layer, and a second bending part is formed at the joint of the third part and the fourth part.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the touch screen further includes a first adhesive member, and the second portion is adhered to a peripheral side of the second circuit layer and/or the display layer by the first adhesive member; or,

the touch screen further includes a second adhesive member, and the fourth portion is adhered to the peripheral side of the display layer through the second adhesive member.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the second routing area includes the third portion and the fourth portion, the second routing area further includes a fifth portion, the fifth portion is connected to the fourth portion, and the fifth portion is connected to a backlight side of the display layer, where the backlight side is away from the second circuit layer, and a third bending portion is formed at a connection position between the fourth portion and the fifth portion.

As an alternative implementation manner, in an embodiment of the first aspect of the present utility model, the touch screen further includes a second adhesive member, and the fifth portion is adhered to a backlight side of the display layer facing away from the second circuit layer by the second adhesive member.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the touch screen further includes a first adhesive layer, a second adhesive layer, and a third adhesive layer, where the first circuit layer is adhered to the cover plate through the first adhesive layer, the second circuit layer is adhered to the first circuit layer through the second adhesive layer, and the display layer is adhered to the second circuit layer through the third adhesive layer.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the cover plate includes a display area and a non-display area disposed at a periphery of the display area, where the non-display area is provided with a light shielding structure;

the projections of the first circuit layer and the second circuit layer on the cover plate do not exceed the edge of the non-display area.

As an optional implementation manner, in an embodiment of the first aspect of the present utility model, the touch screen further includes a polarizing layer, where the polarizing layer is disposed between the cover plate and the first circuit layer.

In a second aspect, the utility model discloses a terminal device comprising a touch screen as described in the first aspect.

Compared with the prior art, the utility model has the beneficial effects that:

according to the touch screen and the terminal equipment provided by the embodiment of the utility model, the arrangement area of the second circuit layer is reduced by reducing the part of the edge of the second circuit layer, which is not wired, so that the first wiring area of the first circuit layer positioned on the same side can be bent towards the second circuit layer and is connected with the periphery of the second circuit layer and/or the display layer, so that the projection area of the first circuit layer on the non-display area of the cover plate is reduced, the size of the non-display area of the cover plate is mainly determined by the projection area of the first circuit layer, and the non-display area of the cover plate can be properly reduced due to the reduction of the projection area of the first circuit layer on the non-display area of the cover plate. Or, the second wiring area on one side of the second circuit layer is bent towards the display layer, so that the projection area of the second circuit layer on the non-display area of the cover plate can be reduced, the part of the second circuit layer, which is not wired, can be reduced, the setting area of the first circuit layer is reduced, the projection of the first circuit layer on the second circuit layer is positioned in the second circuit layer, the size of the non-display area of the cover plate is mainly determined by the projection area of the second circuit layer, and the projection area of the second circuit layer on the non-display area of the cover plate is reduced, so that the non-display area of the cover plate can be properly reduced, and the design of the narrow frame of the touch screen is facilitated.

Meanwhile, only the first wiring area of the first circuit layer or the second wiring area of the second circuit layer is bent, the thickness of the single-layer structure is relatively thin, the situation that leads of the first wiring area of the first circuit layer and the second wiring area of the second circuit layer are broken is avoided, and the production yield of the touch screen is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a touch screen according to the prior art;

FIG. 2 is an exploded view of the touch screen of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the touch screen of FIG. 1 along the A-A direction;

fig. 4 is a schematic structural diagram of a touch screen according to an embodiment of the present disclosure;

FIG. 5 is an exploded view of the touch screen of FIG. 4;

FIG. 6 is a schematic cross-sectional view of the touch screen of FIG. 4 along the B-B direction;

fig. 7 is a schematic structural diagram of another touch screen according to the second embodiment of the present utility model;

FIG. 8 is an exploded view of the touch screen of FIG. 7;

FIG. 9 is a schematic cross-sectional view of the touch screen of FIG. 7 along the direction C-C.

The main reference numerals illustrate:

a cover plate 10; a display area 101; a non-display area 102; a display layer 20; a first wiring layer 30; a first touch area 301; a first touch electrode 301a; a first routing region 302; a first lead 302a; a first portion 3021; a second portion 3022; a second wiring layer 40; a second touch area 401; a second touch electrode 401a; a second routing area 402; a second lead 402a; a third portion 4021; a fourth portion 4022; a fifth portion 4023; a first adhesive member 51; a second adhesive member 50; a first adhesive layer 60; a second adhesive layer 70; a third adhesive layer 80.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 4 to 6, an embodiment of the utility model discloses a touch screen, which includes a cover plate 10, a display layer 20, a first circuit layer 30 and a second circuit layer 40, wherein the display layer 20 is disposed on one side of the cover plate 10, and a light emitting side of the display layer 20 is disposed towards the cover plate 10. The first circuit layer 30 is disposed between the cover plate 10 and the display layer 20. The second wiring layer 40 is disposed between the first wiring layer 30 and the display layer 20. The projection of the first circuit layer 30 on the second circuit layer 40 is located in the second circuit layer 40, the second circuit layer 40 comprises a second touch area 401 and a second wiring area 402, the second touch area 401 is connected to the first circuit layer 30 and the light emitting side, one end of the second wiring area 402 is connected to the second touch area 401, and the second wiring area 402 is bent towards the display layer 20 to the other end of the wiring area and connected with the periphery side of the display layer 20.

It can be understood that the cover 10 has a display area 101 and a non-display area 102 located at the periphery of the display area 101, the second touch area 401 of the second circuit layer 40 corresponds to the display area 101, and the second routing area 402 of the second circuit layer 40 corresponds to the non-display area 102.

Meanwhile, only the second routing area 402 of the second circuit layer 40 is bent, and the thickness of the single-layer structure is relatively thin, so that the situation that the leads in the second routing area 402 of the second circuit layer 40 are broken is avoided, and the production yield of the touch screen is guaranteed. Meanwhile, the thickness of the single-layer structure is relatively thin, and the single-layer structure is bent to the peripheral side of the display layer 20, so that the influence on the size of the layer where the display layer 20 is located is small, and the narrow frame design of the touch screen is facilitated.

It should be noted that the first circuit layer 30 has a first touch area 301 and a first wiring area 302 connected to a peripheral side of the first touch area 301, the first touch area 301 of the first circuit layer 30 is provided with a first touch electrode 301a, the second touch area 401 of the second circuit layer 40 is provided with a second touch electrode 401a, and the touch screen can detect a touch position of a user by using the first touch electrode 301a and the second touch electrode 401 a. The first routing area 302 of the first circuit layer 30 is provided with a first lead 302a, the second routing area 402 of the second circuit layer 40 is provided with a second lead 402a, one end of the first lead 302a is connected to the first touch electrode 301a, the other end is used for being connected to a circuit board, one end of the second lead 402a is connected to the second touch electrode 401a, and the other end is used for being connected to the circuit board. For example, the first touch electrode 301a and the second touch electrode 401a may be formed of indium Tin oxide (Tin-doped Indium Oxide, abbreviated as ITO) or a metal nanomaterial (e.g., nano silver, nano copper), and the first lead 302a and the second lead 402a may be formed of a metal material such as silver, copper, and the like.

It can be appreciated that when the first circuit layer 30 is projected onto the cover 10, the projection of the first touch electrode 301a may be located in the display area 101 of the cover 10, the projection of the first lead 302a may be located in the non-display area 102, or both ends of the projection of the first touch electrode 301a may extend into the non-display area 102; when the second circuit layer 40 is projected onto the cover 10, the projection of the second touch electrode 401a may be located in the display area 101, the projection of the second lead 402a may be located in the non-display area 102, or both ends of the projection of the second touch electrode 401a may extend into the non-display area 102.

As shown in fig. 5, the first touch area 301 is provided with a plurality of first touch electrodes 301a sequentially spaced apart in the left-right direction, the second touch area 401 is provided with a plurality of second touch electrodes 401a sequentially spaced apart in the front-rear direction, and the projection of any one of the first touch electrodes 301a on the second touch area 401 is intersected with each of the second touch electrodes 401 a. The back side of the first touch area 301 is provided with a first routing area 302, the first routing area 302 is provided with a plurality of first leads 302a arranged at intervals, the back side of each first touch electrode 301a is respectively connected with one first lead 302a, the left side and the right side of each first touch electrode 301a are not connected with leads, the left side, the right side and the back side of each second touch area 401 are respectively provided with a second routing area 402, the left side of each second touch electrode 401a is connected with one second lead 402a passing through the left second routing area 402, the right side is connected with one second lead 402a passing through the right second routing area 402, and the second leads 402a of the left second routing area 402 and the right routing area extend to the back side second routing area 402 towards the back side so as to be connected to the circuit board. As can be seen, in fig. 5, the second wires 402a are disposed on the left and right sides of the second circuit layer 40, and the first wires 302a are not disposed on the left and right sides of the first circuit layer 30, so that the second routing area 402 on the left and right sides of the second circuit layer 40 can be bent toward the display layer 20 to reduce the area of the second circuit layer 40 projected on the non-display area 102 of the cover plate 10, and the portions of the first circuit layer 30, on which the first wires 302a and the first touch electrodes 301a are not disposed, can be reduced by laser cutting or etching, or smaller substrates are selected when the first circuit layer 30 is prepared, so as to reduce the portions of the first circuit layer 30, on which the first wires 302a and the first touch electrodes 301a are not disposed, so that the projection of the first circuit layer 30 on the second circuit layer 40 is located in the second circuit layer 40, so as to reduce the area of the non-display area 102 of the cover plate 10 projected on the first circuit layer 30, and further reduce the size of the non-frame display area 102 of the cover plate 10, thereby realizing a narrow design of the touch screen. By adopting the design, the display area 101 of the cover plate 10 can be enlarged under the condition that the whole size of the touch screen is unchanged, or the structures of the first touch area 301 and the second touch area 401 are unchanged when the display area of the display layer 20 is unchanged, and the whole size of the touch screen is reduced when the display area 101 of the cover plate 10 is unchanged, so that the miniaturization design and the narrow frame design of the touch screen are facilitated.

In some embodiments, two second routing regions 402 located on opposite sides of the second touch region 401 are bent towards the display layer 20 to connect with the other end of the second routing regions 402. Therefore, the second wiring areas 402 are arranged on the two opposite sides of the second touch area 401, the second lead 402a is conveniently arranged, and meanwhile, the two second wiring areas 402 on the two opposite sides of the second touch area 401 are bent towards the display layer 20, so that the design of the narrow frame of the touch screen is facilitated.

Of course, in other embodiments, the second routing area 402 may be disposed on only one of the left side and the right side of the second touch area 401, and the second routing area 402 is bent towards the display layer 20, so as to reduce the area of the second routing layer 40 projected to the non-display area 102 of the cover plate 10.

In some embodiments, the second routing area 402 includes a third portion 4021 and a fourth portion 4022, the third portion 4021 is connected to the first touch-control area 301, the fourth portion 4022 is connected to the third portion 4021, the fourth portion 4022 is connected to a peripheral side of the display layer 20, and a second bending portion is formed at a connection position of the third portion 4021 and the fourth portion 4022. It can be appreciated that the connection between the second touch electrode 401a and the second lead 402a is disposed adjacent to the boundary line between the second routing area 402 and the second touch area 401, so that the second routing area 402 of the second circuit layer 40 includes a third portion 4021 and a fourth portion 4022, the third portion 4021 is located between the display layer 20 and the first circuit layer 30, the second lead 402a in the third portion 4021 is connected to the second touch electrode 401a of the second touch area 401, and the fourth portion 4022 is bent relative to the third portion 4021 to be located at the periphery of the display layer 20, which is beneficial to ensuring connection stability between the second lead 402a and the second touch electrode 401a while realizing a narrow frame design of the touch screen.

Further, the touch panel further includes a second adhesive member 50, and the fourth portion 4022 is adhered to the peripheral side of the display layer 20 by the second adhesive member 50. The fourth portion 4022 may be adhered to the peripheral side of the display layer 20 by a double sided tape or OCA optical adhesive, for example. In this way, it is advantageous to avoid the fourth portion 4022 tilting to affect the rest of the components within the touch screen.

In some embodiments, the second routing area 402 includes a third portion 4021 and a fourth portion 4022, the second routing area 402 further includes a fifth portion 4023, the fifth portion 4023 is connected to the fourth portion 4022, the fifth portion 4023 is connected to a backlight side of the display layer 20 facing away from the second circuit layer 40, and a third bending portion is formed at a connection point of the fourth portion 4022 and the fifth portion 4023. By providing the second routing area 402 with the fifth portion 4023 connected to the backlight side of the display layer 20, the fifth portion 4023 is beneficial to preventing the fourth portion 4022 from tilting, and meanwhile, the second routing area 402 is beneficial to facilitating the arrangement of the leads when the number of the second leads 402a is large, so that the influence on the thickness of the terminal equipment caused by the excessive distance between the upper side and the lower side of the second routing area 402 is avoided.

It is understood that the second lead 402a may extend from the fourth portion 4022 to the fifth portion 4023 of the second routing area 402, or the second lead 402a may be disposed only within the third portion 4021 and the fourth portion 4022 of the second routing area 402.

Further, the fifth portion 4023 is adhered to the backlight side of the display layer 20 facing away from the second wiring layer 40 by the second adhesive 50. In this way, the fourth portion 4022 is prevented from tilting, and the fourth portion 4022 is not required to be bonded to the display layer 20 through the second bonding piece 50, so that the fourth portion 4022 is beneficial to being close to the display layer 20, the projection of the second circuit layer 40 in the non-display area 102 of the cover plate 10 is ensured to be smaller, and the design of a narrow frame of the touch screen is realized.

It will be appreciated that the first wiring layer 30 and the second wiring layer 40 are provided insulated. Illustratively, the first and second circuit layers 30 and 40 may be connected by at least one of polyester resin (PET), cyclic olefin polymer (COC), polyimide (PI) and OCA optical cement to provide insulation between the first and second circuit layers 30 and 40.

In some embodiments, the touch screen further includes a first adhesive layer 60, a second adhesive layer 70, and a third adhesive layer 80, the first circuit layer 30 is adhered to the cover plate 10 through the first adhesive layer 60, the second circuit layer 40 is adhered to the first circuit layer 30 through the second adhesive layer 70, and the display layer 20 is adhered to the second circuit layer 40 through the third adhesive layer 80. In this way, the cover plate 10, the first circuit layer 30, the second circuit layer 40, the display layer 20 and other multi-layer structures are bonded, which is beneficial to improving the structural stability of the touch screen.

It should be noted that the first adhesive layer 60, the second adhesive layer 70 and the third adhesive layer 80 are all transparent adhesives, so as to ensure the normal display of the touch screen. Illustratively, the first adhesive layer 60, the second adhesive layer 70 and the third adhesive layer 80 may be OCA optical adhesive layers, where the OCA optical adhesive (Optical Clear Adhesive) is colorless and transparent, and has a light transmittance of 95% or more, and good adhesive strength, which is beneficial to reducing the influence on the visual performance of the touch screen.

In some embodiments, the cover 10 includes a display area 101 and a non-display area 102 disposed on the periphery of the display area 101, where the non-display area 102 is provided with a light shielding structure. The projections of the first wiring layer 30 and the second wiring layer 40 on the cover plate do not exceed the edges of the non-display area 102. It can be appreciated that the light emitted by the display layer 20 can be emitted from the display area 101, and the non-display area 102 is provided with a light shielding structure, so that the non-display area 102 can shield the light to shield the leads in the first circuit layer 30 and the second circuit layer 40, thereby avoiding the wires in the first circuit layer 30 and the second circuit layer 40 from being seen by a user, and ensuring the visual performance of the touch screen.

Illustratively, the cover plate 10 may be transparent glass, and the light shielding structure may be formed by printing ink on an edge portion of the transparent glass.

In some embodiments, the touch screen further includes a polarizing layer (not shown) disposed between the cover plate 10 and the first circuit layer 30. It can be understood that the polarizing layer may be projected in the first circuit layer 30 or the second circuit layer 40, and by disposing the polarizing layer between the first circuit layer 30 and the cover plate 10, it is beneficial to reduce the detectability of the metal nanomaterial when the user observes the display layer 20 by using the polarization of the polarizing layer when the first circuit layer 30 and the second circuit layer 40 are touch electrodes made of the metal nanomaterial, and improve the appearance performance of the touch screen.

Example two

Referring to fig. 7 to 9, a touch screen is disclosed in a second embodiment of the present utility model, the touch screen includes a cover 10, a display layer 20, a first circuit layer 30 and a second circuit layer 40, the display layer 20 is disposed on one side of the cover 10, and a light emitting side of the display layer 20 is disposed towards the cover 10. The first circuit layer 30 is disposed between the cover plate 10 and the display layer 20. The second wiring layer 40 is disposed between the first wiring layer 30 and the display layer 20. The first circuit layer 30 includes a first touch area 301 and a first routing area 302, the first touch area 301 is connected between the second circuit layer 40 and the cover plate 10, one end of the first routing area 302 is connected to the first touch area 301, and the first routing area 302 is bent towards the second circuit layer 40 until the other end of the first routing area 302 is connected to the second circuit layer 40 and/or the periphery of the display layer 20.

It can be understood that the cover 10 has a display area 101 and a non-display area 102 located at the periphery of the display area 101, the first touch area 301 of the second circuit layer 40 corresponds to the display area 101, and the first routing area 302 corresponds to the non-display area 102.

The second circuit layer 40 has a second touch area 401 and a second routing area 402 connected to a peripheral side of the second touch area 401, as described above, the first touch area 301 of the first circuit layer 30 is provided with the first touch electrode 301a, the second touch area 401 of the second circuit layer 40 is provided with the second touch electrode 401a, and the touch screen can detect a touch position of a user by using the first touch electrode 301a and the second touch electrode 401 a. The first routing area 302 of the first circuit layer 30 is provided with a first lead 302a, and the second routing area 402 of the second circuit layer 40 is provided with a second lead 402a. As shown in fig. 8, the first touch area 301 is provided with a plurality of first touch electrodes 301a sequentially spaced apart in the front-rear direction, the second touch area 401 is provided with a plurality of second touch electrodes 401a sequentially spaced apart in the left-right direction, and the projection of any one of the first touch electrodes 301a on the second touch area 401 is intersected with each of the second touch electrodes 401 a. The left side, the right side and the back side of the first touch area 301 are respectively provided with a first wire area 302, the left side of each first touch electrode 301a is connected with a first lead 302a passing through the left side first wire area 302, the right side is connected with a first lead 302a passing through the right side first wire area 302, the left side first wire area 302 and the first lead 302a of the right side wire area extend to the back side first wire area 302 towards the back side so as to be connected to a circuit board, the back side of the second touch area 401 is provided with a second wire area 402, the second wire area 402 is provided with a plurality of second leads 402a arranged at intervals, the back side of each second touch electrode 401a is respectively connected with one second lead 402a, and the left side and the right side of each second touch electrode 401a are not connected with leads. As can be seen, in fig. 8, the first wires 302a are disposed on the left and right sides of the first circuit layer 30, and the second wires 402a are not disposed on the left and right sides of the second circuit layer 40, and the second circuit layer 40 is prepared by cutting or etching, or by selecting a substrate with a smaller size, so as to reduce the portions of the left and right sides of the second circuit layer 40, where the second wires 402a and the second touch electrode 401a are not disposed, and bend the first routing regions 302 on the left and right sides of the first circuit layer 30 to the peripheral sides of the second circuit layer 40 and the display layer 20, so as to reduce the projection area of the first circuit layer 30 on the non-display region 102 of the cover plate 10.

Meanwhile, only the first routing area 302 is bent, and the thickness of the single-layer structure is relatively thin, so that the situation that the first lead 302a is broken is avoided, and the production yield of the touch screen is guaranteed. Meanwhile, the thickness of the single-layer structure is relatively thin, and the single-layer structure is bent to the periphery of the display layer 20, so that the influence on the size of the layer where the display layer 20 is located is small, and the narrow frame design of the touch screen is facilitated.

In some embodiments, two first routing regions 302 located on opposite sides of the first touch region 301 are bent toward the second circuit layer 40 to the other end of the second routing region 402, and are connected to the second circuit layer 40 and/or the peripheral side of the display layer 20. In this way, the opposite sides of the first touch area 301 are provided with the first routing areas 302, so that the first lead 302a is convenient to set, and meanwhile, the two first routing areas 302 on the opposite sides of the first touch area 301 are bent towards the display layer 20, and meanwhile, the design of the narrow frame of the touch screen is facilitated.

Of course, in other embodiments, the first touch area 301 may also be provided with the first routing area 302 on only one of the left side and the right side, and the first routing area 302 is bent towards the display layer 20, so as to reduce the area of the first routing layer 30 projected to the non-display area 102 of the cover 10.

In some embodiments, the first routing area 302 includes a first portion 3021 and a second portion 3022, the first portion 3021 is connected to the second touch area 401, the second portion 3022 is connected to the first portion 3021, and the second portion 3022 is connected to the second circuit layer 40 and/or the periphery of the display layer 20, and a first bending portion is formed at a connection portion between the first portion 3021 and the second portion 3022. It can be appreciated that the connection between the first touch electrode 301a and the first lead 302a is disposed adjacent to the boundary line between the first routing area 302 and the first touch area 301, so that the first routing area 302 includes the first portion 3021 and the second portion 3022, the first portion 3021 is located between the second circuit layer 40 and the cover plate 10, the first lead 302a in the first portion 3021 is connected to the first touch electrode 301a of the first touch area 301, and the second portion 3022 is bent relative to the first portion 3021 to be located at the periphery side of the second circuit layer 40 and/or the display layer 20, which is beneficial to ensuring connection stability between the first lead 302a and the first touch electrode 301a while realizing a narrow frame design of the touch screen.

Further, the touch screen further includes a first adhesive member 51, and the second portion 3022 is adhered to the peripheral side of the display layer 20 by the first adhesive member 51. The second portion 3022 may be adhered to the peripheral side of the display layer 20 by double-sided tape or OCA optical adhesive, for example. In this manner, it is advantageous to avoid tilting of the second portion 3022 to affect the rest of the components within the touch screen.

Specifically, the rest of the structure of the touch screen may be described with reference to the previous embodiment one, and will not be described herein.

The utility model also discloses a terminal device comprising the touch screen. It can be understood that the terminal equipment with the touch screen also has the technical effect of the touch screen, and can realize the narrow frame design of the touch screen. Exemplary terminal devices include, but are not limited to, devices with touch functionality such as cell phones, tablets or notebook computers.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A touch screen, comprising:

a cover plate;

the display layer is arranged on one side of the cover plate, and the light emergent side of the display layer faces the cover plate;

the first circuit layer is arranged between the cover plate and the display layer; and

the second circuit layer is arranged between the first circuit layer and the display layer;

the first circuit layer comprises a first touch control area and a first wiring area, the first touch control area is connected between the second circuit layer and the cover plate, one end of the first wiring area is connected with the first touch control area, and the first wiring area is bent towards the second circuit layer until the other end of the first wiring area is connected with the second circuit layer and/or the periphery side of the display layer; or alternatively

The projection of the first circuit layer on the second circuit layer is positioned in the second circuit layer, the second circuit layer comprises a second touch control area and a second wiring area, the second touch control area is connected between the first circuit layer and the display layer, one end of the second wiring area is connected with the second touch control area, and the second wiring area is bent towards the display layer to the other end of the second wiring area and is connected with the periphery of the display layer.

2. The touch screen according to claim 1, wherein two first routing areas located on two opposite sides of the first touch area are bent towards the second circuit layer to the other end of the second routing area, and are connected with the second circuit layer and/or the periphery side of the display layer; or alternatively

And the two second wiring areas positioned on two opposite sides of the second touch control area are bent towards the display layer to the other end of the second wiring area and are connected with the display layer.

3. The touch screen according to claim 1, wherein the first trace includes a first portion and a second portion, the first portion is connected to the first touch area, the second portion is connected to the first portion, and the second portion is connected to a peripheral side of the second circuit layer and/or the display layer, and a first bending portion is formed at a connection position of the first portion and the second portion; or alternatively

The second wiring area comprises a third part and a fourth part, the third part is connected with the second touch area, the fourth part is connected with the third part, the fourth part is connected with the periphery of the display layer, and a second bending part is formed at the joint of the third part and the fourth part.

4. A touch screen according to claim 3, further comprising a first adhesive member, the second portion being adhered to the second wiring layer and/or the peripheral side of the display layer by the first adhesive member; or,

the touch screen further includes a second adhesive member, and the fourth portion is adhered to the peripheral side of the display layer through the second adhesive member.

5. The touch screen of claim 3, wherein the second routing area includes the third portion and the fourth portion, the second routing area further includes a fifth portion, the fifth portion is connected to the fourth portion, and the fifth portion is connected to a backlight side of the display layer facing away from the second routing layer, and a third bending portion is formed at a connection between the fourth portion and the fifth portion.

6. The touch screen of claim 5, further comprising a second adhesive, wherein the fifth portion is adhered to a backlight side of the display layer facing away from the second circuit layer by the second adhesive.

7. The touch screen of claim 1, further comprising a first adhesive layer, a second adhesive layer, and a third adhesive layer, wherein the first circuit layer is bonded to the cover plate through the first adhesive layer, the second circuit layer is bonded to the first circuit layer through the second adhesive layer, and the display layer is bonded to the second circuit layer through the third adhesive layer.

8. The touch screen according to any one of claims 1 to 7, wherein the cover plate comprises a display area and a non-display area arranged on the periphery of the display area, and the non-display area is provided with a shading structure;

the projections of the first circuit layer and the second circuit layer on the cover plate do not exceed the edge of the non-display area.

9. The touch screen of any one of claims 1-7, further comprising a polarizing layer disposed between the cover plate and the first circuit layer.

10. A terminal device comprising a touch screen as claimed in any one of claims 1 to 9.