Touch screen and display device

Abstract

The present application is adapted to the technical field of display apparatuses, and provides a touch screen and a display device. The touch screen comprises an outer touch layer, a touch detection portion and a mounting portion, wherein the outer touch layer is mounted on the mounting portion, and the outer touch layer has a touch surface and a back surface which are opposingly arranged; the touch detection portion is mounted on the mounting portion, and the touch detection portion comprises an emitter and a receiver, wherein the emitter can emit detection light, the receiver can receive the detection light, a propagation path of the detection light between the emitter and the receiver forms a detection route that is located on the side of the touch surface away from the back surface and is parallel to a first preset direction; and the outer touch layer protrudes towards the detection route. By using the outer touch layer in the present application, the touch experience of the touch screen is improved while ensuring the touch performance of the touch screen.

Description

Touch screen and display device

[0001] The present application also claims priority to a Chinese patent application with the application number 202422006433.X and the title "Touch screen and display device" filed on August 16, 2024, at the China Patent Office, and a Chinese patent application with the application number 202422695544.6 and the title "Touch screen and display device" filed on November 05, 2024, at the China Patent Office, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of display devices, in particular to a touch screen and display device. BACKGROUND

[0003] The touch screen is a human-computer interaction device, which can convert touch actions into electronic signals to realize direct control of electronic devices.

[0004] The touch screen in the related art usually adopts an infrared touch method to realize touch operation. The touch operation is performed on the touch outer layer of the touch screen. The touch outer layer has a touch surface and a back surface arranged oppositely. An infrared emitter and an infrared receiver are respectively installed at opposite positions of the touch outer layer. The infrared light emitted by the infrared emitter to the infrared receiver is located on the side of the touch surface away from the back surface.

[0005] To ensure the touch performance of the touch screen, the touch outer layer is usually recessed away from the infrared light. However, the touch outer layer with the above shape is prone to sensing touch actions when the touch input component is not placed on the touch outer layer. This "suspended touch" phenomenon will make the touch actions of the touch input component inconsistent with the actual feedback, thereby affecting the touch experience. TECHNICAL PROBLEM

[0006] One of the purposes of the embodiments of the present application is to provide a touch screen and display device, which aims to solve the technical problem of poor touch experience of the touch screen in the related art. TECHNICAL SOLUTION

[0007] The technical scheme adopted by the embodiments of the present application is:

[0008] In a first aspect, a touch screen is provided, comprising a touch outer layer, a touch detection part, and a mounting part, wherein the touch outer layer is mounted on the mounting part, the touch outer layer has a touch surface and a back surface arranged oppositely; the touch detection part is mounted on the mounting part, the touch detection part comprises a transmitter and a receiver, wherein the transmitter is capable of emitting detection light, the receiver is capable of receiving the detection light, a propagation path of the detection light between the transmitter and the receiver forms a detection route, the detection route is located on a side of the touch surface away from the back surface, and the detection route is parallel to a first preset direction; and the touch outer layer is protrusively arranged towards the detection route.

[0009] In a second aspect, a display device is provided, comprising the above-mentioned touch screen. Advantages

[0010] The touch screen provided by the embodiments of the present application has the advantages that, since the touch outer layer in the present application is protrusively arranged towards the detection route, the distance between the touch outer layer and the detection route is reduced, so that the touch input component such as a finger or a stylus is detected by the touch detection part only when it is closer to the touch outer layer, so that the touch action of the touch input component is more consistent with the actual feedback, and the touch action of the touch input component is more in line with the feeling of natural writing; by using the touch outer layer in the present application, the touch experience of the touch screen is improved while the touch performance of the touch screen is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0012] FIG. 1 is a structural schematic diagram of a touch screen provided by an embodiment of the present application in a first perspective view;

[0013] FIG. 2 is a structural schematic diagram of a touch screen provided by an embodiment of the present application in a second perspective view;

[0014] FIG. 3 is a simple structural schematic diagram of a touch screen and a touch input component provided by an embodiment of the present application in a first implementation mode;

[0015] FIG. 4 is a structural schematic diagram of a touch outer layer provided by an embodiment of the present application in a first implementation mode;

[0016] FIG. 5 is a simple structural schematic diagram of a touch screen and a touch input component provided by an embodiment of the present application in a second implementation mode;

[0017] FIG. 6 is a front view of the touch outer layer in a second embodiment according to the present application;

[0018] FIG. 7 is an exploded view of the touch screen in a third embodiment according to the present application;

[0019] FIG. 8 is an exploded view of the touch screen in a fourth embodiment according to the present application;

[0020] FIG. 9 is a partial cross-sectional view of the touch screen according to the present application;

[0021] FIG. 10 is an exploded view of the mounting frame according to the present application;

[0022] FIG. 11 is an enlarged view of A in FIG. 9;

[0023] FIG. 12 is an enlarged view of B in FIG. 9;

[0024] FIG. 13 is a structural view of the touch screen in a first perspective according to the present application;

[0025] FIG. 14 is a structural view of the touch screen in a second perspective according to the present application;

[0026] FIG. 15 is a schematic view of the touch screen and the touch input component according to the present application;

[0027] FIG. 16 is a partial cross-sectional view of the touch screen according to the present application;

[0028] FIG. 17 is a partial cross-sectional view of the first mounting frame in a fifth embodiment and a sixth embodiment according to the present application;

[0029] FIG. 18 is a partial cross-sectional view of the first mounting frame in a seventh embodiment and an eighth embodiment according to the present application;

[0030] FIG. 19 is a front view of the touch screen according to the present application;

[0031] FIG. 20 is an exploded view of the touch screen according to the present application;

[0032] FIG. 21 is a structural view of the touch outer layer according to the present application;

[0033] FIG. 22 is an enlarged view of A in FIG. 16;

[0034] FIG. 23 is an enlarged view of B in FIG. 16;

[0035] The label details involved in the above-mentioned drawings are as follows: 100, touch outer layer; 110, touch surface; 120, back surface; 130, first change section; 140, second change section; 150, constant value section; 210, transmitter; 211, first convex strip; 220, receiver; 300, mounting part; 310, mounting frame; 311, first frame body; 311a, first change part; 311b, second change part; 311c, first constant value part; 3111, frame body; 31111, clamping surface; 31112, mounting cavity; 3112, clamping strip; 3113, light filtering strip; 3114, second convex strip; 312, second frame body; 312a, third change part; 312b, fourth change part; 312c, second constant value part; 320, first mounting frame; 321, first frame body; 321a, first mounting space; 321b, first mounting opening; 321c, second mounting surface; 321d, first mounting cavity; 321e, first light filtering strip; 321f, second convex strip; 322, first clamping piece; 322a, first clamping body; 322b, first mounting surface; 330, second mounting frame; 331, second frame body; 340, third mounting frame; 350, fourth mounting frame; 360, connecting piece; 370, decorative cover; 380, mounting back plate; 381, limiting convex strip; 382, containing cavity; 390, mounting middle frame; 3100, buffer foam; 3110, dustproof foam; 400, optical assembly; 410, optical film piece; 420, display screen; 500, touch input part.

[0036] Embodiments of the present application

[0037] In order to make the purposes, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0038] It is to be noted that when a component is referred to as being "fixed" or "set" on another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected" to another component, it can be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first", "second" are only for the convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0039] In order to illustrate the technical solutions provided in the present application, the following will be described in detail in combination with specific drawings and examples.

[0040] Referring to FIGS. 1-9, in order to solve the above problems, according to one aspect of the present application, embodiments of the present application provide a touch screen, which comprises a touch outer layer 100, a touch detection part, and a mounting part 300, wherein the touch outer layer 100 is mounted on the mounting part 300, the touch outer layer 100 has a touch surface 110 and a back surface 120 arranged oppositely; the touch detection part is mounted on the mounting part 300, the touch detection part comprises an emitter 210 and a receiver 220, wherein the emitter 210 is capable of emitting detection light, the receiver 220 is capable of receiving the detection light, a propagation path of the detection light between the emitter 210 and the receiver 220 forms a detection route, the detection route is located on a side of the touch surface 110 away from the back surface 120, and the detection route is parallel to a first preset direction; the touch outer layer 100 is protrudingly arranged towards the detection route.

[0041] In the embodiments of the present application, the touch screen is used in cooperation with the touch input component 500, which is usually a finger of a user or a stylus; the touch outer layer 100 is a cover glass made of tempered glass, and in other embodiments, the touch outer layer 100 can also be made of plastic, ceramic, metal or composite material, which is determined according to actual needs; the emitter 210 is usually an infrared plate assembly with an infrared emitter 210, and the receiver 220 is usually an infrared plate assembly with an infrared receiver 220, and the direction of the emitter 210 to the receiver 220 is parallel to the first preset direction, in which case the infrared light is formed as detection light, and the propagation path of the detection light is a straight line; in other embodiments, the detection light can also be laser or other light that can be used for detecting touch operation, and the specific structure of the emitter 210 and the receiver 220 can be set according to actual detection needs, for example, a conventional infrared emitter 210 and an infrared receiver 220 or other touch detection structures, which are not limited here. In addition, in other embodiments, the emitter 210 can be an infrared plate assembly with an infrared emitter 210 and an infrared receiver 220, which functions as an emitter 210 when emitting infrared light and as a receiver 220 when receiving infrared light; the receiver 220 can be an infrared plate assembly with an infrared emitter 210 and an infrared receiver 220, which functions as a receiver 220 when receiving infrared light and as an emitter 210 when emitting infrared light. The dashed lines in FIGS. 3 and 5 are detection routes.

[0042] Since the touch outer layer 100 in the present application is protrudingly arranged towards the detection route, this design reduces the distance between the touch outer layer 100 and the detection route, so that the touch input component 500 such as a finger of a user or a stylus is detected by the touch detection part only when it is closer to the touch outer layer 100, thereby making the touch action of the touch input component 500 more consistent with the actual feedback, and further making the touch action of the touch input component 500 more natural and comfortable for writing. By using the touch outer layer 100 in the present application, the touch experience of the touch screen is improved while ensuring the touch performance of the touch screen.

[0043] Referring to FIGS. 1 to 4 and 9, in a first embodiment, the thickness of the touch outer layer 100 remains unchanged; the touch outer layer 100 includes a first change section 130 and a second change section 140 connected in sequence along the first preset direction; the distance between the first change section 130 and the detection route gradually decreases along the first preset direction, and the distance between the second change section 140 and the detection route gradually increases along the first preset direction.

[0044] In the embodiment, the first preset direction is only one direction, i.e. the direction from the first change section 130 to the second change section 140, and the first preset direction is parallel to the length direction of the touch outer layer 100. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100 or a direction intersecting with the length direction or the width direction of the touch screen.

[0045] The touch outer layer 100 can be formed into the continuously changing convex shape during manufacturing or after being installed on the mounting portion 300. When the touch outer layer 100 is formed into the convex shape during manufacturing, the first change section 130 and the second change section 140 are manufactured by an integral molding process. The design that the thickness of the touch outer layer 100 remains unchanged simplifies the production process, improves the production efficiency and the yield rate, and reduces the production cost. The design makes the distance between the touch surface 110 and the detection route present a change trend of gradually decreasing and then gradually increasing along the first preset direction. In this case, the touch surface 110 presents an overall convex arc surface, and the touch outer layer 100 presents an overall convex arc plate.

[0046] Referring to FIGS. 1-4 and 9, in the first embodiment, the distance between the first change section 130 and the detection route gradually decreases and then gradually increases along the second preset direction, and the second preset direction is perpendicular to the first preset direction. The distance between the second change section 140 and the detection route gradually decreases and then gradually increases along the second preset direction.

[0047] In the embodiment, the second preset direction is parallel to the width direction of the touch outer layer 100. In other embodiments, the second preset direction can also be parallel to the length direction of the touch outer layer 100. In addition, the number of the detection routes is multiple, and at least one detection route of the multiple detection routes is parallel to the first preset direction, and at least one detection route is parallel to the second preset direction.

[0048] The design not only makes the middle part of the touch outer layer 100 closer to the detection route, but also improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, disperses the stress on the touch outer layer 100, reduces the stress concentration, improves the anti-deformation performance of the touch outer layer 100, and prolongs the service life of the touch outer layer 100. In another embodiment, the thickness of the touch outer layer 100 remains unchanged. The touch outer layer 100 includes the first change section 130 and the second change section 140 connected in sequence along the first preset direction. The distance between the first change section 130 and the detection route gradually decreases and then gradually increases only along the second preset direction, and the second preset direction is perpendicular to the first preset direction. The distance between the second change section 140 and the detection route gradually decreases and then gradually increases only along the second preset direction.

[0049] Referring to FIG. 1, FIG. 2, FIG. 5, FIG. 6 and FIG. 9, in the second embodiment, the thickness of the touch outer layer 100 remains unchanged; the touch outer layer 100 comprises a first varying section 130, a constant value section 150 and a second varying section 140 connected in sequence along a first preset direction; the distance between the first varying section 130 and the detection route gradually decreases along the first preset direction, the distance between the constant value section 150 and the detection route remains unchanged along the first preset direction, and the distance between the second varying section 140 and the detection route gradually increases along the first preset direction.

[0050] In the embodiment, the first preset direction has only one direction, i.e. from the first varying section 130 to the constant value section 150 and then to the second varying section 140, and the first preset direction is generally parallel to the length direction of the touch outer layer 100. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100 or a direction intersecting the length direction and the width direction of the touch outer layer 100.

[0051] The touch outer layer 100 can form the convex shape of varying-constant-varying when manufactured or form the convex shape of varying-constant-varying after being installed on the mounting portion 300. When the touch outer layer 100 forms the convex shape during manufacturing, the first varying section 130, the constant value section 150 and the second varying section 140 are manufactured by an integral molding process. The above design makes the distance between the touch surface 110 and the detection route present a change trend of gradually decreasing first, then remaining unchanged, and then gradually increasing along the first preset direction. In this case, the touch surface 110 presents a convex shape on both sides and a straight and unchanged curved surface in the middle, and the touch outer layer 100 presents a convex shape on both sides and a straight curved panel in the middle.

[0052] Referring to FIG. 1, FIG. 2, FIG. 5, FIG. 6 and FIG. 9, in the second embodiment, the distance between the first varying section 130 and the detection route gradually decreases, then remains unchanged and then gradually increases along a second preset direction, the second preset direction is perpendicular to the first preset direction; the distance between the constant value section 150 and the detection route remains unchanged along the second preset direction; and the distance between the second varying section 140 and the detection route gradually decreases, then remains unchanged and then gradually increases along the second preset direction.

[0053] In the embodiment, the second preset direction is parallel to the width direction of the touch outer layer 100. In other embodiments, the second preset direction can also be parallel to the length direction of the touch outer layer 100. In addition, the number of the detection routes is multiple, and at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0054] The above design not only makes the middle part of the touch outer layer 100 closer to the detection route, improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, but also helps to disperse the stress on the touch outer layer 100, reduces stress concentration, improves the anti-deformation performance of the touch outer layer 100, and prolongs the service life of the touch outer layer 100. In another embodiment, the thickness of the touch outer layer 100 remains unchanged; the touch outer layer 100 includes a first variable section 130, a constant value section 150, and a second variable section 140 connected in sequence along a first preset direction; the distance between the first variable section 130 and the detection route gradually decreases along a second preset direction, remains unchanged, and then gradually increases, the second preset direction being perpendicular to the first preset direction; the distance between the constant value section 150 and the detection route remains unchanged along the second preset direction; and the distance between the second variable section 140 and the detection route gradually decreases along the second preset direction, remains unchanged, and then gradually increases.

[0055] Referring to FIGS. 1, 2, and 7-10, in an embodiment, the mounting portion 300 includes a mounting frame 310, and the mounting frame 310 includes two first frame bodies 311 spaced apart along a first preset direction; the first frame body 311 has a first mounting space, and part of the structure of the touch outer layer 100 is located in the first mounting space, and the opposite two inner walls in the first mounting space are in contact with the touch surface 110 and the back surface 120, respectively.

[0056] In this embodiment, the opposite two inner walls in the first mounting space will respectively exert a clamping force on the touch surface 110 and the back surface 120, so that the touch outer layer 100 is stably mounted on the first frame body 311; the first frame body 311 provided plays a role of mounting and carrying the touch outer layer 100.

[0057] Referring to FIGS. 1, 2, 7, 9, and 10, in a third embodiment, the first frame body 311 includes a first variable part 311a and a second variable part 311b connected in sequence along a second preset direction, and the second preset direction is perpendicular to the first preset direction; the distance between the first variable part 311a and the detection route gradually decreases along the second preset direction, and the distance between the second variable part 311b and the detection route gradually increases along the second preset direction.

[0058] In this embodiment, the second preset direction has only one direction, i.e., from the first variable part 311a to the second variable part 311b, and the second preset direction is usually parallel to the width direction of the touch outer layer 100, and in other embodiments, the second preset direction can also be parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, and at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0059] The first changing part 311a and the second changing part 311b are manufactured by an integral molding process while the thickness of the touch outer layer 100 remains unchanged; the above design makes the distance between the first frame 311 and the detection route present a change trend of gradually reducing first and gradually increasing later along the second preset direction, so that the distance between the touch outer layer 100 and the detection route presents a change trend of gradually reducing first and gradually increasing later along the second preset direction. In addition, the transmitter 210 is usually installed on one of the two first frames 311, and the receiver 220 is usually installed on the other first frame 311; at the same time, in order to make the detection route a straight line, the transmitter 210 and the receiver 220 in the touch detection part will be adjusted according to the bending of the first frame 311 to make the detection route parallel to the first preset direction and a straight line.

[0060] If the touch outer layer 100 is flat when it is not installed on the first frame 311 of the third embodiment, the touch outer layer 100 is bent into a convex shape corresponding to the first frame 311 by the bending force applied to the touch outer layer 100 by the first frame 311 when the touch outer layer 100 is installed on the first frame 311. If the touch outer layer 100 is already in a convex shape when the bending force applied to the touch outer layer 100 by the first frame 311 of the third embodiment, the touch outer layer 100 in a convex shape is installed on the first frame 311, and the bending force applied to the touch outer layer 100 by the first frame 311 makes the touch outer layer 100 maintain the convex shape corresponding to the first frame 311. The convex shape of the touch outer layer 100 when it is not installed on the first frame 311 corresponds to the convex shape of the first frame 311, but the degree of convexity may or may not be the same, for example, the degree of convexity of the first frame 311 is greater than the degree of convexity of the touch outer layer 100 when it is not installed on the first frame 311.

[0061] Referring to FIGS. 1, 2, and 8-10, in the fourth embodiment, the first frame 311 includes a first changing part 311a, a first constant value part 311c, and a second changing part 311b connected in sequence along a second preset direction perpendicular to the first preset direction; the distance between the first changing part 311a and the detection route gradually reduces along the second preset direction, the distance between the first constant value part 311c and the detection route remains unchanged along the second preset direction, and the distance between the second changing part 311b and the detection route gradually increases along the second preset direction.

[0062] In the embodiment, the second preset direction has only one direction, i.e. from the first varying part 311a to the first constant value part 311c and then to the second varying part 311b, and the second preset direction is generally parallel to the width direction of the touch outer layer 100. In other embodiments, the second preset direction can also be parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, and at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0063] The first varying part 311a, the first constant value part 311c and the second varying part 311b are manufactured by an integral molding process, and the thickness of the touch outer layer 100 remains unchanged. The above design makes the spacing between the first frame 311 and the detection route along the second preset direction present a change trend of gradually reducing first, then keeping unchanged, and then gradually increasing, so that the spacing between the touch outer layer 100 and the detection route along the second preset direction presents a change trend of gradually reducing first, then keeping unchanged, and then gradually increasing. In addition, the transmitter 210 is generally installed on one of the two first frames 311, and the receiver 220 is generally installed on the other first frame 311. In order to make the detection route a straight line, the transmitter 210 and the receiver 220 in the touch detection part are generally adjusted according to the bending of the first frame 311, so that the detection route is parallel to the first preset direction and is a straight line.

[0064] If the touch outer layer 100 is flat when it is not installed on the first frame 311 of the fourth embodiment, when the touch outer layer 100 is installed on the first frame 311, only the bending force applied to the touch outer layer 100 by the first frame 311 makes the touch outer layer 100 bend into a convex shape corresponding to the first frame 311. If the touch outer layer 100 is already in a convex shape when the bending force applied to the touch outer layer 100 by the first frame 311 of the fourth embodiment, when the touch outer layer 100 in the convex shape is installed on the first frame 311, in combination with the bending force applied to the touch outer layer 100 by the first frame 311, the touch outer layer 100 keeps the convex shape corresponding to the first frame 311. The convex shape of the touch outer layer 100 when it is not installed on the first frame 311 corresponds to the convex shape of the first frame 311, but the degree of convexity can be the same or different, for example, the degree of convexity of the first frame 311 is greater than the degree of convexity of the touch outer layer 100 when it is not installed on the first frame 311.

[0065] Referring to FIG. 1, FIG. 2 and FIG. 7 to FIG. 10, in an embodiment, the mounting frame 310 further comprises two second frame bodies 312 which are arranged along the second preset direction and are spaced apart from each other, and the adjacent first frame body 311 and the second frame body 312 are connected; the second frame body 312 has a second mounting space, and part of the structure of the touch outer layer 100 is located in the second mounting space, and the opposite two inner walls in the second mounting space are in contact with the touch surface 110 and the back surface 120 respectively.

[0066] In the embodiment, the adjacent first frame body 311 and the second frame body 312 are perpendicular to each other; the opposite two inner walls in the second mounting space can exert clamping force on the touch surface 110 and the back surface 120 respectively, so as to stably mount the touch outer layer 100 on the second frame body 312; the second frame body 312 arranged plays a role of mounting and bearing the touch outer layer 100. In addition, in order to facilitate the manufacture of the mounting frame 310, the structure of the second frame body 312 is usually the same as that of the first frame body 311, of course, in other embodiments, the structure of the second frame body 312 can also be different from that of the first frame body 311.

[0067] In addition, the mounting frame 310 further comprises a connecting piece 360, and the adjacent first frame body 311 and the second frame body 312 are connected through the connecting piece 360. Specifically, the number of the connecting piece 360 is four, and the connecting piece 360 is usually an L-shaped connecting strip; one part of the structure of the connecting piece 360 is inserted into the first frame body 311 inside the first frame body 311 and connected with the first frame body 311 by using a connecting bolt, another part of the structure of the connecting piece 360 is inserted into the second frame body 312 and connected with the second frame body 312 by using a connecting bolt, and the remaining part of the structure of the connecting piece 360 is located between the adjacent first frame body 311 and the second frame body 312. By using the connecting piece 360 in the present application, two first frame bodies 311 and two second frame bodies 312 can be connected end to end and combined into the mounting frame 310. In addition, in order to improve the appearance of the touch screen, a decorative cover 370 is mounted on the connecting piece 360, and the decorative cover 370 covers the part of the structure of the connecting piece 360 which is mounted on the connecting piece 360 and located between the adjacent first frame body 311 and the second frame body 312.

[0068] Referring to FIG. 1, FIG. 2, FIG. 7, FIG. 9 and FIG. 10, in a third embodiment, the second frame body 312 comprises a third variable part 312a and a fourth variable part 312b which are connected in sequence along the first preset direction, the spacing between the third variable part 312a and the detection route gradually decreases along the first preset direction, and the spacing between the fourth variable part 312b and the detection route gradually increases along the first preset direction.

[0069] In the embodiment, the first preset direction has only one direction, i.e. the direction from the third variable portion 312a to the fourth variable portion 312b, and the first preset direction is parallel to the length direction of the touch outer layer 100. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100. The third variable portion 312a and the fourth variable portion 312b are manufactured by an integral molding process. The above design makes the spacing between the second frame 312 and the detection route present a change trend of gradually reducing first and gradually increasing later along the first preset direction, so that the middle portion of the touch outer layer 100 can be closer to the detection route, improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, is also beneficial to dispersing the stress on the touch outer layer 100, reduces stress concentration, improves the anti-deformation performance of the touch outer layer 100, and prolongs the service life of the touch outer layer 100. In addition, the third embodiment can also be combined with the first embodiment to ensure the stability of the touch outer layer 100.

[0070] Referring to FIGS. 1, 2 and 8-10, in the fourth embodiment, the second frame 312 includes the third variable portion 312a, the second constant value portion 312c and the fourth variable portion 312b connected in sequence along the first preset direction, the spacing between the third variable portion 312a and the detection route gradually reduces along the first preset direction, the spacing between the second constant value portion 312c and the detection route remains unchanged along the first preset direction, and the spacing between the fourth variable portion 312b and the detection route gradually increases along the first preset direction.

[0071] In the embodiment, the first preset direction has only one direction, i.e. the direction from the third variable portion 312a to the fourth variable portion 312b, and the first preset direction is parallel to the length direction of the touch outer layer 100. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100. The third variable portion 312a and the fourth variable portion 312b are manufactured by an integral molding process. The above design makes the spacing between the second frame 312 and the detection route present a change trend of gradually reducing first and gradually increasing later along the first preset direction, so that the middle portion of the touch outer layer 100 can be closer to the detection route, improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, is also beneficial to dispersing the stress on the touch outer layer 100, reduces stress concentration, improves the anti-deformation performance of the touch outer layer 100, and prolongs the service life of the touch outer layer 100. In addition, the third embodiment can also be combined with the first embodiment to ensure the stability of the touch outer layer 100.

[0072] Referring to FIG. 3, FIG. 5, FIG. 9, FIG. 10 and FIG. 12, in an embodiment, the first frame body 311 includes a frame body 3111 having a clamping surface 31111, and a clamping strip 3112 installed on the frame body 3111 and arranged towards the clamping surface 31111, and a clamping area is formed between the clamping surface 31111 and the surface of the clamping strip 3112 close to the clamping surface 31111; part of the structure of the touch outer layer 100 is located in the clamping area, and the clamping surface 31111 and the surface of the clamping strip 3112 close to the clamping surface 31111 are in contact with the touch surface 110 and the back surface 120 respectively, and the clamping area is formed as a mounting space.

[0073] In the embodiment, in order to ensure the stability of the touch outer layer 100 on the mounting frame 310, after part of the structure of the touch outer layer 100 enters the clamping area, the clamping surface 31111 is kept in contact with the touch surface 110, and the surface of the clamping strip 3112 close to the clamping surface 31111 is kept in contact with the back surface 120; at the same time, in order to facilitate part of the structure of the touch outer layer 100 to enter the clamping area, the clamping strip 3112 is detachably installed on the frame body 3111 through connecting bolts. In addition, in order to reduce the manufacturing cost, the number of clamping strips 3112 is multiple, and the multiple clamping strips 3112 are arranged along the length direction of the frame body 3111, and in other embodiments, the number of clamping strips 3112 can also be one.

[0074] Referring to FIG. 3, FIG. 5, FIG. 9 and FIG. 11, in an embodiment, the frame body 3111 is provided with mounting cavities 31112, and the emitter 210 and the receiver 220 are respectively installed in two mounting cavities 31112 arranged along a first preset direction; the mounting cavity 31112 has an opening for the detection light to pass through.

[0075] Referring to FIG. 3, FIG. 5, FIG. 9 and FIG. 11, in an embodiment, the emitter 210 has two oppositely arranged first protrusions 211, and one of the two first protrusions 211 has an included angle between the direction to the other first protrusion 211 and the extension direction of the opening; the two opposite cavity walls in the mounting cavity 31112 are each provided with a first groove, and the two first protrusions 211 are respectively arranged in one-to-one correspondence with the two first grooves; the emitter 210 is installed in the mounting cavity 31112 by inserting the first protrusions 211 into the corresponding first grooves. In addition, the external structure of the receiver 220 is basically the same as that of the emitter 210.

[0076] Referring to FIG. 3, FIG. 5, FIG. 9 and FIG. 12, in an embodiment, the first frame 311 further comprises a light filtering strip 3113 installed in the opening; the light filtering strip 3113 blocks the opening. The light filtering strip 3113 has two second protrusions 3114, one of the two second protrusions 3114 has an angle with the direction of the other second protrusion 3114, and the opening has two opposite inner walls with second grooves, the two second protrusions 3114 are respectively arranged in the two second grooves one by one; the light filtering strip 3113 is installed in the opening by inserting the second protrusions 3114 into the corresponding second grooves.

[0077] Referring to FIG. 3 and FIG. 5, in an embodiment, the shortest distance between the touch surface 110 and the detection route is greater than or equal to 0 and less than or equal to 5 mm. In this embodiment, the shortest distance between the touch surface 110 and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

[0078] Referring to FIG. 1, FIG. 2, FIG. 7 and FIG. 8, in an embodiment, the number of touch detection units is two groups, one group of touch detection units has a direction of the transmitter 210 to the receiver 220 parallel to the first preset direction, and the other group of touch detection units has a direction of the transmitter 210 to the receiver 220 parallel to the second preset direction. The above design is conducive to improving the touch accuracy of the touch screen and improving the touch experience of the touch screen.

[0079] Referring to FIG. 13 to FIG. 20, in an embodiment, the touch outer layer 100 is protrudingly arranged towards the detection route under the preset pushing force of the mounting portion 300, and the preset pushing force is arranged towards the side of the touch surface 110 away from the back surface 120.

[0080] In this embodiment, the mounting portion 300 can have a force applying structure located on the side of the touch outer layer 100 away from the detection route and protrudingly arranged towards the detection route, and the force applying structure can apply the preset pushing force to the touch outer layer 100 by contacting the back surface 120, so as to protrudingly arrange the touch outer layer 100 towards the detection route. The dotted lines in FIG. 15, FIG. 17 and FIG. 18 are the detection routes.

[0081] If the touch outer layer 100 is flat when not installed on the installation portion 300, the touch outer layer 100 becomes a convex shape when installed on the installation portion 300, only by the preset pushing force applied to the touch outer layer 100 by the installation portion 300. If the touch outer layer 100 is already a convex shape when not installed on the installation portion 300, the touch outer layer 100 becomes a convex shape when installed on the installation portion 300, by the bending force applied to the touch outer layer 100 by the installation portion 300. The convex degree of the touch outer layer 100 when not installed on the installation portion 300 can be the same as or different from the convex degree after the preset pushing force is applied by the installation portion 300.

[0082] In the present application, the touch outer layer 100 is convexly arranged towards the detection route under the action of the preset pushing force applied by the installation portion 300, which effectively reduces the distance between the touch outer layer 100 and the detection route, so that the touch input component 500 such as a finger or a stylus is detected by the touch detection portion when it is closer to the touch outer layer 100. This improvement makes the touch action of the touch input component 500 more consistent with the actual feedback, so that the touch action of the touch input component 500 is more in line with natural writing. By using the installation portion 300 and the touch outer layer 100 together, the touch experience of the touch screen is effectively improved while ensuring the touch performance of the touch screen.

[0083] Referring to FIGS. 15 to 18, in an embodiment, the installation portion 300 includes a first installation frame 320, one of the transmitter 210 and the receiver 220 is installed on the first installation frame 320; the first installation frame 320 has a first installation space 321a, part of the structure of the touch outer layer 100 is installed in the first installation space 321a; the first installation space 321a has a first installation face 322b and a first installation opening 321b, part of the structure of the touch outer layer 100 is installed in the first installation space 321a through the first installation opening 321b; the first installation face 322b is arranged obliquely from the back face 120 to the touch face 110 towards the first installation opening 321b, and applies a preset pushing force to the touch outer layer 100 by contacting the back face 120.

[0084] In the embodiment, the transmitter 210 is mounted on the first mounting frame 320, and in other embodiments, the receiver 220 can be mounted on the first mounting frame 320. The direction from the touch surface 110 to the back surface 120 is parallel to the thickness direction of the touch screen and perpendicular to the detection route. The first mounting surface 322b is an inner surface in the first mounting space 321a, and the first mounting surface 322b is a smooth transition inclined surface and is gradually arranged to be inclined to the direction close to the first mounting opening 321b from the back surface 120 to the touch surface 110; in addition, the first mounting surface 322b is attached to the back surface 120 to ensure that the first mounting surface 322b applies a uniform distribution of preset pushing force to the touch outer layer 100. In other embodiments, the first mounting surface 322b can also be a non-smooth transition inclined surface, for example, an inclined surface with multiple protrusions.

[0085] According to the principle of mechanics, the preset pushing force is perpendicular to the first mounting surface 322b; in this application, the first mounting surface 322b is arranged to be inclined to the direction close to the first mounting opening 321b from the back surface 120 to the touch surface 110, and this inclined design makes the preset pushing force actually transmitted to the direction away from the first mounting opening 321b at a certain angle from the back surface 120 to the touch surface 110 when applied to the touch outer layer 100; the preset pushing force is transmitted to the touch outer layer 100 through the back surface 120, which causes the touch outer layer 100 to displace in this direction and be arranged to protrude towards the detection route. By using the above design, the shape of the touch outer layer 100 is effectively changed, so that the user's finger or touch pen and other touch input components 500 are detected by the touch detection part to perform touch action when they are closer to the touch outer layer 100, which effectively improves the touch performance and touch accuracy of the touch screen.

[0086] Referring to FIGS. 15 to 18, in an embodiment, the first mounting space 321a also has a second mounting surface 321c, which is located between the detection route and the first mounting surface 322b and is arranged opposite to the first mounting surface 322b; the second mounting surface 321c is arranged to be inclined to the direction close to the first mounting opening 321b from the back surface 120 to the touch surface 110 and is in contact with the touch surface 110.

[0087] In the embodiment, the second mounting surface 321c is an inner surface in the first mounting space 321a, and the second mounting surface 321c is a smooth transition inclined surface and is gradually arranged to be inclined to the direction close to the first mounting opening 321b from the back surface 120 to the touch surface 110; in addition, the second mounting surface 321c is attached to the touch surface 110 to ensure that the second mounting surface 321c applies a uniform distribution of pressing force to the touch outer layer 100. In other embodiments, the second mounting surface 321c can also be a non-smooth transition inclined surface, for example, an inclined surface with multiple protrusions.

[0088] The second installation surface 321c is used in cooperation with the first installation surface 322b, which not only limits the shaking of the touch outer layer 100 in the installation space, enhances the stability of the touch outer layer 100 on the installation part 300, but also provides additional support to help maintain the shape of the touch outer layer 100, thereby preventing the touch performance of the touch screen from being affected due to the change in the shape of the touch outer layer 100.

[0089] Referring to FIGS. 15 and 17, in the fifth implementation, the thickness of the touch outer layer 100 remains unchanged; the first installation surface 322b has a first adjustment angle with the first preset direction, and the first adjustment angle increases first and then decreases along the second preset direction, which is perpendicular to the first preset direction.

[0090] In the present implementation, the first preset direction is parallel to the length direction of the touch outer layer 100, and the second preset direction is parallel to the width direction of the touch outer layer 100. The first installation frame 320 is arranged along the second preset direction. In other implementations, the first preset direction can also be parallel to the width direction of the touch outer layer 100, and the second preset direction can be parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, and at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0091] The first installation surface 322b is a complete surface, and the first adjustment angle gradually increases first and then gradually decreases along the second preset direction, so as to ensure that the touch outer layer 100 is smoothly raised, reduce the discomfort of the user in use, and optimize the touch performance of the touch screen. The reason why a larger angle is arranged in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared with the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is less likely to deform, so a larger angle is arranged in the middle part of the touch outer layer 100. The design that the thickness of the touch outer layer 100 remains unchanged not only simplifies the production process, improves the production efficiency and yield on the premise of reducing the production cost, but also helps to reduce the discomfort of the user in use and optimize the touch performance of the touch screen.

[0092] The above design makes the spacing between the touch surface 110 and the detection route along the second preset direction present a change trend of first decreasing and then increasing, which not only makes the middle part of the touch outer layer 100 closer to the detection route, further improves the touch experience of the touch screen on the premise of ensuring the touch performance of the touch screen, but also helps to disperse the stress on the touch outer layer 100, reduce stress concentration, improve the anti-deformation performance of the touch outer layer 100, and prolong the service life of the touch outer layer 100.

[0093] Referring to FIG. 15 and FIG. 17, in the fifth embodiment, the thickness of the touch outer layer 100 remains unchanged; the second mounting surface 321c has a second adjustment angle with the first preset direction, the second adjustment angle increases first and then decreases along the second preset direction, and the second preset direction is perpendicular to the first preset direction.

[0094] In the embodiment, the second mounting surface 321c is a complete surface, and the second adjustment angle gradually increases first and then gradually decreases along the second preset direction. The reason for setting a larger angle in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared to the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100 itself, the middle part of the touch outer layer 100 is less likely to deform, so a larger angle is set in the middle part of the touch outer layer 100. The second mounting surface 321c and the first mounting surface 322b are closely matched, which not only limits the shaking of the touch outer layer 100 in the mounting space, enhances the stability of the touch outer layer 100 on the mounting part 300, but also provides additional support to help maintain the shape of the touch outer layer 100, thereby preventing the touch performance of the touch screen from being affected due to the change of the shape of the touch outer layer 100.

[0095] Referring to FIG. 15 and FIG. 17, in the sixth embodiment, the thickness of the touch outer layer 100 remains unchanged; the first mounting surface 322b has a first adjustment angle with the first preset direction, the first adjustment angle increases first and then remains unchanged and then decreases along the second preset direction, and the second preset direction is perpendicular to the first preset direction.

[0096] In the embodiment, the first preset direction is parallel to the length direction of the touch outer layer 100, the second preset direction is parallel to the width direction of the touch outer layer 100, and the first mounting frame 320 is arranged along the second preset direction. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100, and the second preset direction is parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0097] The first installation surface 322b is a complete surface, and the first adjusting angle gradually increases first, remains unchanged then gradually decreases along the second preset direction, so as to ensure that the touch outer layer 100 is smoothly convex, reduce the discomfort of the user in use, and optimize the touch performance of the touch screen; and the reason why the larger angle is arranged in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared with the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is less likely to deform, so the larger angle is arranged in the middle part of the touch outer layer 100.

[0098] The above design makes the distance between the touch surface 110 and the detection route present the change trend of gradually reducing first, remaining unchanged then gradually increasing along the second preset direction, which not only makes the middle part of the touch outer layer 100 closer to the detection route, further improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, but also is beneficial to dispersing the stress on the touch outer layer 100, reducing stress concentration, improving the anti-deformation performance of the touch outer layer 100, and prolonging the service life of the touch outer layer 100.

[0099] Referring to FIGS. 15 and 17, in the sixth embodiment, the detection route is parallel to the first preset direction, and the thickness of the touch outer layer 100 remains unchanged; the second installation surface 321c has a second adjusting angle with the first preset direction, the second adjusting angle gradually increases first, remains unchanged then gradually decreases along the second preset direction, and the second preset direction is perpendicular to the first preset direction.

[0100] In the embodiment, the second installation surface 321c is a complete surface, and the second adjusting angle gradually increases first, remains unchanged then gradually decreases along the second preset direction; and the reason why the larger angle is arranged in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared with the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is less likely to deform, so the larger angle is arranged in the middle part of the touch outer layer 100. The second installation surface 321c in the above design closely cooperates with the first installation surface 322b, not only limits the shaking of the touch outer layer 100 in the installation space, enhances the stability of the touch outer layer 100 on the installation part 300, but also can provide additional support to help maintain the shape of the touch outer layer 100, so as to prevent the change of the shape of the touch outer layer 100 from affecting the touch performance of the touch screen.

[0101] Referring to FIG. 17, in an embodiment, the first adjusting angle is greater than 0° and less than or equal to 10°; and the second adjusting angle is greater than 0° and less than or equal to 10°.

[0102] In addition, in order to ensure that the touch outer layer 100 realizes smooth convex, reduces the discomfort of the user in use and optimizes the touch performance of the touch screen; in a specific embodiment, the angle range of the first adjusting angle close to the edge position of the first frame body 321 is 0.5°-3°, the angle range of the first adjusting angle close to the middle position of the first frame body 321 is 1°-4°, and the angles of the plurality of first adjusting angles are smoothly transitioned along the second preset direction. The size of the second adjusting angle is the same as that of the first adjusting angle.

[0103] Referring to FIGS. 15-18, in an embodiment, the second mounting surface 321c is parallel to the first mounting surface 322b. The above design helps the first mounting surface 322b and the second mounting surface 321c to fit closely, thereby not only helping to limit the shaking of the touch outer layer 100 in the mounting space and helping to maintain the shape of the touch outer layer 100, but also helping to assemble the touch outer layer 100 and the first mounting frame 320, reducing the assembly difficulty and cost.

[0104] Referring to FIGS. 15-18, in an embodiment, the first mounting frame 320 includes a first frame body 321 and a first clamping piece 322, and the second mounting surface 321c is arranged on the first frame body 321; the first clamping piece 322 is mounted on the first frame body 321 and is arranged towards the second mounting surface 321c, and a first clamping region is formed between the surface of the first clamping piece 322 close to the second mounting surface 321c and the second mounting surface 321c. Part of the structure of the touch outer layer 100 is mounted in the first clamping region, and the first clamping region forms the first mounting space 321a; the surface of the first clamping piece 322 close to the second mounting surface 321c is in contact with the back surface 120 and forms the first mounting surface 322b.

[0105] In the present application, the design that the first mounting frame 320 includes the first frame body 321 and the first clamping piece 322 effectively reduces the manufacturing difficulty and cost of the first mounting frame 320. In addition, in order to further reduce the manufacturing difficulty and cost of the first mounting frame 320, the first clamping piece 322 is detachably mounted on the first frame body 321, specifically, the first clamping piece 322 is detachably mounted on the first frame body 321 by using connecting screws or clamping.

[0106] Referring to FIG. 15 and FIG. 18, in the seventh embodiment, the thickness of the touch outer layer 100 remains unchanged; the first clamping member 322 comprises a plurality of first clamping bodies 322a arranged along a second preset direction, the second preset direction being perpendicular to the first preset direction; the surface of the first clamping body 322a close to the second mounting surface 321c is in contact with the back surface 120; the first clamping angle between the surface of the first clamping body 322a close to the second mounting surface 321c and the first preset direction gradually increases and then decreases along the second preset direction.

[0107] In the embodiment, the first preset direction is parallel to the length direction of the touch outer layer 100, the second preset direction is parallel to the width direction of the touch outer layer 100, and the first mounting frame 320 is arranged along the second preset direction. In other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100, and the second preset direction can be parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, at least one of the multiple detection routes is parallel to the first preset direction, and at least one of the multiple detection routes is parallel to the second preset direction.

[0108] The first clamping body 322a is a glass pressing strip, and the shape of the glass pressing strip is generally Z-shaped. In other embodiments, the shape of the first clamping body 322a can also be determined according to actual needs. The second mounting surface 321c is a complete surface, and the first clamping angle gradually increases and then decreases along the second preset direction. The reason for setting a larger clamping angle in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force than the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is less likely to deform, so a larger clamping angle is set in the middle part of the touch outer layer 100.

[0109] The above design makes the distance between the touch surface 110 and the detection route along the second preset direction first decrease and then increase, which not only makes the middle part of the touch outer layer 100 closer to the detection route, but also improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, and is also conducive to dispersing the stress on the touch outer layer 100, reducing stress concentration, improving the anti-deformation performance of the touch outer layer 100, and prolonging the service life of the touch outer layer 100. At the same time, the plurality of first clamping bodies 322a helps to reduce the manufacturing difficulty and cost of the first clamping member 322, thereby reducing the manufacturing difficulty and cost of the touch screen.

[0110] Referring to FIG. 15 and FIG. 18, in the seventh embodiment, the thickness of the touch outer layer 100 remains unchanged; the first clamping member 322 comprises a plurality of first clamping bodies 322a arranged along a second preset direction, the second preset direction being perpendicular to the first preset direction; the second mounting surface 321c and the first preset direction have a second clamping angle, the second clamping angle first increases and then decreases along the second preset direction.

[0111] In the embodiment, the second mounting surface 321c is a complete surface, and the second clamping angle first gradually increases and then gradually decreases along the second preset direction. The reason for setting a larger clamping angle in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared with the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is more difficult to deform, so a larger clamping angle is set in the middle part of the touch outer layer 100. The second mounting surface 321c described above cooperates with the first mounting surface 322b, not only limits the shaking of the touch outer layer 100 in the mounting space, enhances the stability of the touch outer layer 100 on the mounting part 300, but also provides additional support to help maintain the shape of the touch outer layer 100, thereby preventing the change of the touch performance of the touch screen caused by the change of the shape of the touch outer layer 100.

[0112] In other embodiments, the first frame body 321 can comprise a plurality of first frame bodies arranged along the second preset direction, the surface of the first frame body close to the first mounting surface 322b being in contact with the touch surface 110, the surface of the first frame body close to the first mounting surface 322b and the first preset direction having a second clamping angle, and the plurality of second clamping angles first increase and then decrease along the second preset direction.

[0113] Referring to FIG. 15 and FIG. 18, in the eighth embodiment, the thickness of the touch outer layer 100 remains unchanged; the first clamping member 322 comprises a plurality of first clamping bodies 322a arranged along a second preset direction, the second preset direction being perpendicular to the first preset direction; the surface of the first clamping body 322a close to the second mounting surface 321c being in contact with the back surface 120; the surface of the first clamping body 322a close to the second mounting surface 321c and the first preset direction having a first clamping angle, and the plurality of first clamping angles first increase and then remain unchanged and then decrease along the second preset direction.

[0114] In the embodiment, the first preset direction is parallel to the length direction of the touch outer layer 100, the second preset direction is parallel to the width direction of the touch outer layer 100, the first mounting frame 320 is arranged along the second preset direction, and in other embodiments, the first preset direction can also be parallel to the width direction of the touch outer layer 100, and the second preset direction can be parallel to the length direction of the touch outer layer 100. In addition, the number of detection routes is multiple, at least one detection route of the multiple detection routes is parallel to the first preset direction, and at least one detection route is parallel to the second preset direction.

[0115] The first clamping body 322a is a glass pressing strip, and the shape of the glass pressing strip is generally Z-shaped, and in other embodiments, the shape of the first clamping body 322a can also be determined according to actual needs. The second mounting surface 321c is a complete surface, and the first clamping angle gradually increases first, remains unchanged subsequently, and then gradually decreases along the second preset direction. The reason why a larger clamping angle is arranged in the middle part of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force compared with the edge part, and at the same time, based on the influence of the gravity of the touch outer layer 100, the middle part of the touch outer layer 100 is less likely to deform, so a larger clamping angle is arranged in the middle part of the touch outer layer 100.

[0116] The above design makes the spacing between the touch surface 110 and the detection route along the second preset direction present a change trend of first decreasing, then remaining unchanged, and then increasing, which not only makes the middle part of the touch outer layer 100 closer to the detection route, but also improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, and is also conducive to dispersing the stress on the touch outer layer 100, reducing stress concentration, improving the anti-deformation performance of the touch outer layer 100, and prolonging the service life of the touch outer layer 100. At the same time, the plurality of first clamping bodies 322a arranged helps to reduce the manufacturing difficulty and cost of the first clamping member 322, thereby reducing the manufacturing difficulty and cost of the touch screen.

[0117] Referring to FIGS. 15 and 18, in the eighth embodiment, the thickness of the touch outer layer 100 remains unchanged; the first clamping member 322 includes a plurality of first clamping bodies 322a arranged at intervals along the second preset direction, the second preset direction is perpendicular to the first preset direction; the second mounting surface 321c has a second clamping angle with the first preset direction, and the second clamping angle gradually increases first, remains unchanged subsequently, and then decreases along the second preset direction.

[0118] In the embodiment, the second installation surface 321c is a complete surface, and the second clamping angle gradually increases first, then remains unchanged, and then gradually decreases along the second preset direction. The reason for setting a larger clamping angle in the middle of the touch outer layer 100 is that the middle part of the touch outer layer 100 is less affected by the clamping force than the edge part, and the middle part of the touch outer layer 100 is less likely to deform based on the influence of the gravity of the touch outer layer 100 itself. Therefore, a larger clamping angle is set in the middle of the touch outer layer 100. The second installation surface 321c and the first installation surface 322b are closely matched, which not only limits the shaking of the touch outer layer 100 in the installation space, enhances the stability of the touch outer layer 100 on the installation part 300, but also provides additional support to help maintain the shape of the touch outer layer 100, thereby preventing the touch performance of the touch screen from being affected due to the change of the shape of the touch outer layer 100.

[0119] In other embodiments, the first frame body 321 can include a plurality of first frame bodies spaced apart along the second preset direction. The surface of the first frame body close to the first installation surface 322b is in contact with the touch surface 110, and the surface of the first frame body close to the first installation surface 322b and the first preset direction have a second clamping angle. The plurality of second clamping angles gradually increase first, then remain unchanged, and then decrease along the second preset direction.

[0120] Referring to FIG. 18, in an embodiment, the first clamping angle is greater than 0° and less than or equal to 10°, and the second clamping angle is greater than 0° and less than or equal to 10°. In a specific embodiment, the first clamping angle close to the edge of the first frame body 321 in the plurality of first clamping angles ranges from 0.5° to 3°, the first clamping angle close to the middle of the first frame body 321 in the plurality of first clamping angles ranges from 1° to 4°, and the angles of the plurality of first clamping angles gradually transition along the second preset direction. The size of the second clamping angle is the same as that of the first clamping angle.

[0121] Referring to FIGS. 13, 14, and 19-21, in an embodiment, the installation part 300 further includes a second installation frame 330, and the other one of the transmitter 210 and the receiver 220 is installed on the second installation frame 330. The second installation frame 330 has a second installation space, and part of the structure of the touch outer layer 100 is installed in the second installation space. The touch screen has a first center line parallel to the second preset direction, and the second installation frame 330 and the first installation frame 320 are symmetrically arranged along the first center line.

[0122] In the fifth and seventh embodiments, the touch surface 110 is an overall convex arc surface and the touch outer layer 100 is an overall convex arc plate under the cooperation of the first and second mounting frames 320 and 330. In the sixth and eighth embodiments, the touch surface 110 is a curved surface with both sides convex and the middle part flat, and the touch outer layer 100 is a curved surface plate with both sides convex and the middle part flat. In addition, in order to make the detection route a straight line, the transmitter 210 and the receiver 220 in the touch detection part are usually adjusted according to the bending of the first and second mounting surfaces 322b and 321c, so that the detection route is parallel to the first preset direction and becomes a straight line.

[0123] The above design not only helps the middle part of the touch outer layer 100 to be closer to the detection route, but also improves the touch experience of the touch screen under the premise of ensuring the touch performance of the touch screen, and helps to disperse the stress on the touch outer layer 100, reduce stress concentration, improve the anti-deformation performance of the touch outer layer 100, and prolong the service life of the touch outer layer 100. In addition, the above design also helps to reduce the manufacturing difficulty and cost of the touch screen.

[0124] Referring to FIGS. 15-18, 22 and 23, in an embodiment, the first frame 321 is provided with a first mounting cavity 321d, the second mounting frame 330 includes a second frame 331, the second frame 331 is provided with a second mounting cavity, and the transmitter 210 and the receiver 220 are respectively mounted in the two first and second mounting cavities which are arranged along the first preset direction; the first and second mounting cavities each have an opening for the detection light to pass through.

[0125] Referring to FIGS. 15-18, 22 and 23, in an embodiment, the transmitter 210 is mounted in the first mounting cavity 321d, and the receiver 220 is mounted in the second mounting cavity; the transmitter 210 has two oppositely arranged first protrusions 211, one of the two first protrusions 211 has an angle between the direction to the other first protrusion 211 and the extension direction of the opening; the two opposite cavity walls in the first mounting cavity 321d are each provided with a first recess, and the two first protrusions 211 are respectively and one-to-one corresponding to the two first recesses; the transmitter 210 is mounted in the first mounting cavity 321d by inserting the first protrusions 211 into the corresponding first recesses. In addition, the external structure of the receiver 220 is basically the same as that of the transmitter 210.

[0126] Referring to FIGS. 15-18, 20, and 13, in an embodiment, the first frame 321 further comprises a first light filtering strip 321e installed in and blocking the opening. The first light filtering strip 321e has two second protrusions 321f, one of the two second protrusions 321f has an angle between a direction thereof and an extension direction of the opening, and each of the two second protrusions 321f is arranged in one-to-one correspondence with a second groove on each of two opposite inner walls of the opening.

[0127] Referring to FIGS. 13, 14, and 19-21, in an embodiment, the mounting portion 300 further comprises a third mounting frame 340 and a fourth mounting frame 350. The third mounting frame 340 has a third mounting space in which part of the structure of the touch outer layer 100 is mounted. The fourth mounting frame 350 has a fourth mounting space in which part of the structure of the touch outer layer 100 is mounted. The first mounting frame 320, the third mounting frame 340, the second mounting frame 330, and the fourth mounting frame 350 are sequentially connected end to end.

[0128] The touch screen has a second center line parallel to the first preset direction. The third mounting frame 340 and the fourth mounting frame 350 are symmetrically arranged along the second center line, and the structures of the third mounting frame 340 and the fourth mounting frame 350 are the same as that of the first mounting frame 320.

[0129] In the embodiment, the third mounting frame 340 and the fourth mounting frame 350 are arranged along the first preset direction. The above design not only helps the middle part of the touch outer layer 100 to be closer to the detection route, but also improves the touch experience of the touch screen while ensuring the touch performance of the touch screen, and is also conducive to dispersing stress on the touch outer layer 100, reducing stress concentration, improving the anti-deformation performance of the touch outer layer 100, and prolonging the service life of the touch outer layer 100. In addition, the above design also helps to reduce the manufacturing difficulty and cost of the touch screen.

[0130] The touch screen comprises a plurality of groups of touch detection portions. The emitter 210 and the receiver 220 in at least one group of touch detection portions are respectively mounted on the first mounting frame 320 and the second mounting frame 330. The emitter 210 and the receiver 220 in the at least one group of touch detection portions are respectively mounted on the third mounting frame 340 and the fourth mounting frame 350.

[0131] The above design helps to reduce the distance between the touch outer layer 100 and the detection route, so that the touch input component 500 such as a finger or a touch pen is detected by the touch detection part when it is closer to the touch outer layer 100. This improvement is used in combination with the improvement that the touch input component 500 is detected by the touch detection part when it is closer to the touch outer layer 100, so that the touch action of the touch input component 500 and the actual feedback become more consistent, thereby making the touch action of the touch input component 500 more natural. By using the mounting part 300 and the touch outer layer 100 in combination, the touch experience of the touch screen is significantly improved while ensuring the touch performance of the touch screen.

[0132] In addition, the touch screen further comprises four connecting pieces 360. The first mounting frame 320 and the third mounting frame 340 are connected by one connecting piece 360, the third mounting frame 340 and the second mounting frame 330 are connected by one connecting piece 360, the second mounting frame 330 and the fourth mounting frame 350 are connected by one connecting piece 360, and the fourth mounting frame 350 and the first mounting frame 320 are connected by one connecting piece 360. Specifically, the connecting piece 360 is usually an L-shaped connecting strip. One part of the structure of the connecting piece 360 is inserted into one of the two mounting frames to be connected, and is connected to the mounting frame by a connecting bolt. Another part of the structure of the connecting piece 360 is inserted into the other mounting frame, and is connected to the other mounting frame by a connecting bolt. The remaining part of the structure of the connecting piece 360 is located between the two mounting frames to be connected. By using the connecting piece 360 in the present application, the first mounting frame 320, the third mounting frame 340, the second mounting frame 330, and the fourth mounting frame 350 can be connected end to end. In addition, in order to improve the appearance of the touch screen, a decorative cover 370 is installed on the connecting piece 360, which covers the part of the structure of the connecting piece 360 located between the two mounting frames to be connected.

[0133] Referring to FIGS. 15, 17, and 18, in an embodiment, the shortest distance between the touch surface 110 and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

[0134] In the present embodiment, the shortest distance between the touch surface 110 and the detection route is greater than or equal to 0 and less than or equal to 1 mm.

[0135] Referring to FIGS. 9, 14, and 16, in an embodiment, the mounting part 300 further comprises a mounting back plate 380 located on the side of the back surface 120 away from the touch surface 110, and the mounting back plate 380 is connected to the mounting frame. The touch screen further comprises an optical assembly 400 located on the side of the back surface 120 away from the touch surface 110, and the optical assembly 400 is mounted on the mounting back plate 380.

[0136] Referring to FIG. 9, FIG. 13, FIG. 14 and FIG. 16, in an embodiment, the mounting back plate 380 is provided with a limiting protrusion 381 protruding towards the mounting frame, and the mounting frame is provided with a limiting recess on the surface close to the mounting back plate 380, and the limiting protrusion 381 is inserted into the limiting recess. In the embodiment, the limiting protrusion 381 is bent from the edge of the mounting back plate 380.

[0137] Referring to FIG. 9 and FIG. 16, in an embodiment, the optical assembly 400 comprises an optical film 410 mounted on the mounting back plate 380, and the mounting part 300 further comprises a mounting middle frame 390 mounted on the surface of the mounting back plate 380 close to the touch outer layer 100, and the mounting middle frame 390 and the optical film 410 are clamped with the buffer foam 3100 therebetween.

[0138] In the embodiment, the surface of the mounting back plate 380 close to the touch outer layer 100 is provided with a receiving cavity 382, and the optical accessory further comprises a plurality of optical accessories, and the plurality of optical accessories are sequentially arranged in the extending direction of the receiving cavity 382, and the optical film 410 is located on the side of the optical accessory closest to the touch outer layer 100 among the plurality of optical accessories, and is fixedly mounted on the mounting back plate 380. The specific structure of the optical film 410 and the specific connection mode thereof with the mounting back plate 380 belong to the common knowledge of those skilled in the art, and will not be described in detail here. The mounting middle frame 390 is fixedly mounted on the surface of the mounting back plate 380 close to the touch outer layer 100 by connecting bolts.

[0139] Referring to FIG. 9 and FIG. 16, in an embodiment, the optical assembly 400 further comprises a display screen 420 located between the touch outer layer 100 and the optical film 410, and the touch outer layer 100 covers the display screen 420; the surface of the mounting middle frame 390 close to the touch outer layer 100 is provided with a mounting recess having a mounting groove bottom, and part of the structure of the display screen 420 is arranged on the mounting groove bottom and connected with the mounting groove bottom by connecting glue.

[0140] In the embodiment, the display screen 420 is a conventional display structure, and the specific structure thereof belongs to the common knowledge of those skilled in the art, and will not be described in detail here. The display screen 420 is usually fixedly adhered to the mounting groove bottom by double-sided adhesive tape or other adhesive materials. In addition, in order to avoid damage to the display screen 420 caused by the mounting middle frame 390, a rubber pad or a protective pad is fixedly mounted on the groove wall adjacent to the mounting groove bottom of the mounting recess.

[0141] Referring to FIG. 9 and FIG. 16, in an embodiment, the dustproof foam 3110 is clamped between the touch outer layer 100 and the display screen 420, and the dustproof foam 3110 is arranged around the circumference of the display screen 420. The arranged dustproof foam 3110 avoids the external dust entering the space between the touch outer layer 100 and the display screen 420 through the gap between the touch outer layer 100 and the display screen 420, and ensures the display effect of the touch screen.

[0142] Referring to FIG. 1 to FIG. 23, according to another aspect of the present application, the embodiments of the present application also provide a display device, which comprises the above-mentioned touch screen.

[0143] In summary, the touch screen and the display device provided by the embodiments have at least the following beneficial technical effects: since the touch outer layer 100 in the present application is arranged protruding towards the detection route, this design reduces the distance between the touch outer layer 100 and the detection route, so that the touch input component 500 such as the finger or the stylus is detected by the touch detection part to have a touch action only when it is closer to the touch outer layer 100, so that the touch action of the touch input component 500 is more consistent with the actual feedback, and further makes the touch action of the touch input component 500 more consistent with the feeling of natural writing; by using the touch outer layer 100 in the present application, the touch experience of the touch screen is improved under the premise of ensuring the touch performance of the touch screen.

[0144] Meanwhile, in the present application, the touch outer layer 100 is arranged protruding towards the detection route under the action of the preset pushing force of the mounting part 300, which effectively reduces the distance between the touch outer layer 100 and the detection route, so that the touch input component 500 such as the finger or the stylus is detected by the touch detection part to have a touch action only when it is closer to the touch outer layer 100. This improvement makes the touch action of the touch input component 500 more consistent with the actual feedback, so that the touch action of the touch input component 500 is more consistent with natural writing. By using the mounting part 300 and the touch outer layer 100 together, the touch experience of the touch screen is effectively improved under the premise of ensuring the touch performance of the touch screen. The above is only an optional embodiment of the present application, and is not used to limit the present application.

[0145] The present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A touch screen, characterized by, The application relates to a touch control device, which comprises a touch control outer layer (100), a touch control detection part and a mounting part (300), wherein the touch control outer layer (100) is mounted on the mounting part (300), the touch control outer layer (100) has oppositely arranged touch control surfaces (110) and back surfaces (120), the touch control detection part is mounted on the mounting part (300), the touch control detection part comprises an emitter (210) and a receiver (220), the emitter (210) can emit detection light, the receiver (220) can receive the detection light, the propagation path between the emitter (210) and the receiver (220) forms a detection route, the detection route is located on the side of the touch control surface (110) away from the back surface (120), and the detection route is parallel to a first preset direction; and the touch control outer layer (100) is protrusively arranged towards the detection route. The thickness of the touch control outer layer (100) remains unchanged; the touch control outer layer (100) comprises a first change section (130) and a second change section (140) which are sequentially connected along the first preset direction; 2. The touch screen of claim 1, wherein, The distance between the first change section (130) and the detection route gradually decreases along the preset direction, the distance between the second change section (140) and the detection route gradually increases along the first preset direction; and / or, The distance between the first change section (130) and the detection route gradually decreases and then gradually increases along a second preset direction which is perpendicular to the first preset direction, the distance between the second change section (140) and the detection route gradually decreases and then gradually increases along the second preset direction. The thickness of the touch control outer layer (100) remains unchanged; the touch control outer layer (100) comprises a first change section (130), a constant value section (150) and a second change section (140) which are sequentially connected along the first preset direction; 3. The touch screen of claim 1, wherein, The distance between the first change section (130) and the detection route gradually decreases along the first preset direction, the distance between the constant value section (150) and the detection route remains unchanged along the first preset direction, and the distance between the second change section (140) and the detection route gradually increases along the first preset direction; and / or, The distance between the first change section (130) and the detection route gradually decreases, remains unchanged and then gradually increases along a second preset direction which is perpendicular to the first preset direction, the distance between the constant value section (150) and the detection route remains unchanged along the second preset direction, and the distance between the second change section (140) and the detection route gradually decreases, remains unchanged and then gradually increases along the second preset direction. ​ 4. The touch screen according to any one of claims 1 to 3, characterized in that, The mounting part (300) comprises a mounting frame (310), the mounting frame (310) comprises two first frame bodies (311) which are arranged at intervals along the first preset direction; the first frame body (311) has a first mounting space, and part of the structure of the touch outer layer (100) is located in the first mounting space; and the opposite two inner wall surfaces in the first mounting space are in contact with the touch surface (110) and the back surface (120) respectively.

5. The touch screen of claim 4, wherein, The first frame body (311) comprises a first change part (311a) and a second change part (311b) which are connected in sequence along a second preset direction, and the second preset direction is perpendicular to the first preset direction; the distance between the first change part (311a) and the detection route gradually decreases along the second preset direction, and the distance between the second change part (311b) and the detection route gradually increases along the second preset direction. 6.The touch screen of claim 4, wherein, The first frame body (311) comprises a first change part (311a), a first constant value part (311c) and a second change part (311b) which are connected in sequence along a second preset direction, and the second preset direction is perpendicular to the first preset direction; the distance between the first change part (311a) and the detection route gradually decreases along the second preset direction, the distance between the first constant value part (311c) and the detection route remains unchanged along the second preset direction, and the distance between the second change part (311b) and the detection route gradually increases along the second preset direction.

7. The touch screen according to claim 5 or 6, characterized in that, The mounting frame (310) further comprises two second frame bodies (312) which are arranged at intervals along the second preset direction, and the adjacent first frame body (311) and the second frame body (312) are connected; the second frame body (312) has a second mounting space, and part of the structure of the touch outer layer (100) is located in the second mounting space; and the opposite two inner wall surfaces in the second mounting space are in contact with the touch surface (110) and the back surface (120) respectively.

8. The touch screen of claim 7, wherein, The second frame body (312) comprises a third change part (312a) and a fourth change part (312b) which are connected in sequence along the first preset direction, the distance between the third change part (312a) and the detection route gradually decreases along the first preset direction, and the distance between the fourth change part (312b) and the detection route gradually increases along the first preset direction.

9. The touch screen of claim 7, wherein, The second frame body (312) comprises a third change part (312a), a second constant value part (312c) and a fourth change part (312b) which are connected in sequence along the first preset direction, the distance between the third change part (312a) and the detection route gradually decreases along the first preset direction, the distance between the second constant value part (312c) and the detection route remains unchanged along the first preset direction, and the distance between the fourth change part (312b) and the detection route gradually increases along the first preset direction.

10. The touch screen according to any one of claims 1 to 3, wherein, The shortest distance between the touch surface (110) and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

11. The touch screen according to any one of claims 1 to 3, wherein, The touch outer layer (100) is arranged protruding towards the detection route under a preset pushing force applied by the mounting portion (300), and the preset pushing force is arranged away from the back surface (120) towards the touch surface (110).

12. The touch screen of claim 11, wherein, The mounting portion (300) comprises a first mounting frame (320), one of the transmitter (210) and the receiver (220) is mounted on the first mounting frame (320); the first mounting frame (320) has a first mounting space (321a), and part of the structure of the touch outer layer (100) is mounted in the first mounting space (321a); The first mounting space (321a) has a first mounting surface (322b) and a first mounting opening (321b), and part of the structure of the touch outer layer (100) is mounted into the first mounting space (321a) through the first mounting opening (321b); the first mounting surface (322b) is arranged inclined from the back surface (120) to the touch surface (110) towards the first mounting opening (321b), and the preset pushing force is applied to the touch outer layer (100) by being in contact with the back surface (120).

13. The touch screen of claim 12, wherein, The first mounting space (321a) further has a second mounting surface (321c), the second mounting surface (321c) is located between the detection route and the first mounting surface (322b) and is arranged opposite to the first mounting surface (322b); the second mounting surface (321c) is arranged inclined from the back surface (120) to the touch surface (110) towards the first mounting opening (321b) and is in contact with the touch surface (110).

14. The touch screen of claim 13, wherein, The thickness of the touch outer layer (100) remains unchanged; The first mounting surface (322b) and the first preset direction have a first adjustment angle, the first adjustment angle first increases and then decreases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; And / or, The second mounting surface (321c) and the first preset direction have a second adjustment angle, the second adjustment angle first increases and then decreases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; And / or, The second mounting surface (321c) is parallel to the first mounting surface (322b).

15. The touch screen of claim 13, wherein, The detection route is parallel to the first preset direction, and the thickness of the touch outer layer (100) remains unchanged; The first mounting surface (322b) and the first preset direction have a first adjustment angle, the first adjustment angle first increases and then remains unchanged and then decreases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; And / or, The second installation surface (321c) has a second adjustment angle with the first preset direction, the second adjustment angle first increases and then remains unchanged and then decreases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; and / or, The second installation surface (321c) is parallel to the first installation surface (322b).

16. The touch screen according to claim 14 or 15, characterized in that, The first adjustment angle is greater than 0° and less than or equal to 10°; and / or, The second adjustment angle is greater than 0° and less than or equal to 10°. The shortest distance between the touch surface (110) and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

17. The touch screen of claim 13, wherein, The first installation frame (320) comprises a first frame body (321) and a first clamping piece (322), the second installation surface (321c) is arranged on the first frame body (321), the first clamping piece (322) is arranged on the first frame body (321) and faces the second installation surface (321c), and a first clamping area is formed between a surface of the first clamping piece (322) close to the second installation surface (321c) and the second installation surface (321c). Part of the structure of the touch outer layer (100) is arranged in the first clamping area, the first clamping area forms the first installation space (321a), and the surface of the first clamping piece (322) close to the second installation surface (321c) is in contact with the back surface (120) and forms the first installation surface (322b).

18. The touch screen of claim 17, wherein, The detection route is parallel to the first preset direction, and the thickness of the touch outer layer (100) remains unchanged; the first clamping piece (322) comprises a plurality of first clamping bodies (322a) arranged at intervals along a second preset direction, and the second preset direction is perpendicular to the first preset direction; The surface of the first clamping body (322a) close to the second installation surface (321c) is in contact with the back surface (120), the surface of the first clamping body (322a) close to the second installation surface (321c) has a first clamping angle with the first preset direction, and a plurality of the first clamping angles first increase and then decrease along the second preset direction; and / or, The second installation surface (321c) has a second clamping angle with the first preset direction, the second clamping angle first increases and then decreases along the second preset direction; and / or, The second installation surface (321c) is parallel to the first installation surface (322b).

19. The touch screen of claim 17, wherein, The thickness of the touch outer layer (100) remains unchanged; the first clamping piece (322) comprises a plurality of first clamping bodies (322a) arranged at intervals along a second preset direction, and the second preset direction is perpendicular to the first preset direction; a surface of the first clamping body (322a) close to the second mounting surface (321c) is in contact with the back surface (120); a first clamping angle between the surface of the first clamping body (322a) close to the second mounting surface (321c) and the first preset direction increases first, remains unchanged then decreases along the second preset direction; and / or, a second clamping angle between the second mounting surface (321c) and the first preset direction increases first, remains unchanged then decreases along the second preset direction; and / or, the second mounting surface (321c) is parallel to the first mounting surface (322b).

20. The touch screen according to claim 18 or 19, characterized in that, the first clamping angle is greater than 0° and less than or equal to 10°; and / or, the second clamping angle is greater than 0° and less than or equal to 10°; and / or, a shortest distance between the touch surface (110) and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

21. A display device, characterized by A touch screen comprising the touch screen of any one of claims 1 to 20.

Images