Touch screen and display device

Abstract

The utility model is suitable for the technical field of display devices, and provides a touch screen and display equipment. The touch screen comprises a touch outer layer, a touch detection part and a mounting part, the touch outer layer is mounted on the mounting part, and the touch outer layer is provided with a touch surface and a back surface which are oppositely arranged; the touch detection part is installed on the installation part and comprises an emitter and a receiver, 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 path, and the detection path is located on the side, away from the back face, of the touch face. The detection route is parallel to the first preset direction; the touch outer layer protrudes towards the detection route. By the adoption of the touch outer layer, the touch experience of the touch screen is improved on the premise that the touch performance of the touch screen is guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of display devices, and more specifically, relates to a touch screen and a display device. Background Art

[0002] A touch screen is a human-computer interaction device that can convert touch actions into electronic signals to directly control an electronic device.

[0003] In related technologies, the touch screen usually adopts an infrared touch method to implement touch operations. The touch operation is performed on the touch outer layer of the touch screen. The touch outer layer has a relatively arranged touch surface and a back surface. At the same time, an infrared transmitter and an infrared receiver are respectively installed at opposite positions on both sides of the touch outer layer. The infrared light emitted by the infrared transmitter to the infrared receiver is located on the side of the touch surface away from the back surface.

[0004] To ensure the touch performance of the touch screen, the touch outer layer usually recesses in the direction away from the infrared light. However, the touch outer layer with the above shape easily causes the infrared receiver to sense a touch action when the touch input component does not fall on the touch outer layer. This phenomenon of "floating touch" will make the touch action of the touch input component not match the actual feedback, thus affecting the touch experience. Summary of the Utility Model

[0005] The purpose of the embodiments of this application is to provide a touch screen and a display device, aiming to solve the technical problem of poor touch experience of the touch screen in related technologies.

[0006] To achieve the above purpose, according to one aspect of this application, a touch screen is provided, including a touch outer layer, a touch detection part, and a mounting part. Among them, the touch outer layer is mounted on the mounting part, and the touch outer layer has a relatively arranged touch surface and a back surface; the touch detection part is mounted on the mounting part, and the touch detection part includes a transmitter and a receiver. Among them, the transmitter can emit detection light, the receiver can receive the detection light, and the propagation path of the detection light between the transmitter and the receiver forms a detection route. The detection route is located on the side of the touch surface away from the back surface, and the detection route is parallel to a first preset direction; the touch outer layer protrudes towards the detection route.

[0007] Optionally, the thickness of the touch outer layer remains unchanged; the touch outer layer includes a first variable section and a second variable section that are sequentially connected along the first preset direction; the distance between the first variable section and the detection route gradually decreases along the first preset direction, and the distance between the second variable section and the detection route gradually increases along the first preset direction; and / or, the distance between the first variable section and the detection route gradually decreases and then gradually increases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; the distance between the second variable section and the detection route gradually decreases and then gradually increases along the second preset direction.

[0008] Optionally, the thickness of the touch outer layer remains unchanged; the touch outer layer includes a first variable section, a constant value section, and a second variable section that are sequentially connected along a first preset direction; the distance between the first variable section and the detection route gradually decreases along the first preset direction, the distance between the constant value section and the detection route remains unchanged along the first preset direction, and the distance between the second variable section and the detection route gradually increases along the first preset direction; and / or, the distance between the first variable section and the detection route gradually decreases, then remains unchanged, and then gradually increases along a second preset direction, where the second preset direction is perpendicular to the first preset direction; the distance between the constant value section and the detection route remains unchanged along the second preset direction; the distance between the second variable section and the detection route gradually decreases, then remains unchanged, and then gradually increases along the second preset direction.

[0009] Optionally, the installation part includes an installation frame, and the installation frame includes two first frame bodies spaced apart along the first preset direction; the first frame body has a first installation space, and a partial structure of the touch outer layer is located in the first installation space, and two opposite inner wall surfaces in the first installation space are in contact with the touch surface and the back surface respectively.

[0010] Optionally, the first frame body includes a first variable part and a second variable part that are sequentially connected along a second preset direction, where the second preset direction is perpendicular to the first preset direction; the distance between the first variable part and the detection route gradually decreases along the second preset direction, and the distance between the second variable part and the detection route gradually increases along the second preset direction.

[0011] Optionally, the first frame body includes a first variable part, a first constant value part, and a second variable part that are sequentially connected along a second preset direction, where the second preset direction is perpendicular to the first preset direction; the distance between the first variable part and the detection route gradually decreases along the second preset direction, the distance between the first constant value part and the detection route remains unchanged along the second preset direction, and the distance between the second variable part and the detection route gradually increases along the second preset direction.

[0012] Optionally, the installation frame further includes two second frame bodies spaced apart along the second preset direction, and the adjacent first frame body and the second frame body are connected; the second frame body has a second installation space, and a partial structure of the touch outer layer is located in the second installation space, and two opposite inner wall surfaces in the second installation space are in contact with the touch surface and the back surface respectively.

[0013] Optionally, the second frame body includes a third variable part and a fourth variable part that are sequentially connected along the first preset direction, the distance between the third variable part and the detection route gradually decreases along the first preset direction, and the distance between the fourth variable part and the detection route gradually increases along the first preset direction.

[0014] Optionally, the second housing includes a third variable portion, a second constant-value portion, and a fourth variable portion that are sequentially connected along a first preset direction. The distance between the third variable portion and the detection route gradually decreases along the first preset direction, the distance between the second constant-value portion and the detection route remains unchanged along the first preset direction, and the distance between the fourth variable portion and the detection route gradually increases along the first preset direction.

[0015] Optionally, the shortest distance between the touch surface and the detection route is greater than or equal to 0 and less than or equal to 5 mm.

[0016] According to another aspect of the present application, a display device is provided, and the display device includes the above touch screen.

[0017] The beneficial effect of the touch screen provided by the present application lies in that: since the touch outer layer in the present application protrudes towards the detection route, this design reduces the distance between the touch outer layer and the detection route, so that the touch input components such as the user's finger or stylus will be detected by the touch detection unit only when they are closer to the touch outer layer, thereby making the touch actions of the touch input components more consistent with the actual feedback, and further making the touch actions of the touch input components more natural and writing-like; by adopting the touch outer layer in the present application, the touch experience of the touch screen is improved while ensuring the touch performance of the touch screen. Description of the Drawings

[0018] In order to more clearly illustrate the technical features of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of the touch screen provided by the embodiment of the present application from a first perspective;

[0020] Figure 2 It is a schematic structural diagram of the touch screen provided by the embodiment of the present application from a second perspective;

[0021] Figure 3 It is a schematic simplified structural diagram of the touch screen and the touch input component used in cooperation provided by the embodiment of the present application in a first implementation manner;

[0022] Figure 4 It is a schematic structural diagram of the touch outer layer provided by the embodiment of the present application in a first implementation manner;

[0023] Figure 5 It is a schematic simplified structural diagram of the touch screen and the touch input component used in cooperation provided by the embodiment of the present application in a second implementation manner;

[0024] Figure 6 Front view schematic diagram of the touch outer layer provided by the embodiment of the present application in the second embodiment;

[0025] Figure 7 Explosion schematic diagram of the touch screen provided by the embodiment of the present application in the third embodiment;

[0026] Figure 8 Explosion schematic diagram of the touch screen provided by the embodiment of the present application in the fourth embodiment;

[0027] Figure 9 Partial cross-sectional schematic diagram of the touch screen provided by the embodiment of the present application;

[0028] Figure 10 Explosion schematic diagram of the mounting frame provided by the embodiment of the present application;

[0029] Figure 11 is Figure 9 Enlarged schematic diagram of part A in

[0030] Figure 12 is Figure 9 Enlarged schematic diagram of part B in

[0031] The label details involved in the above-mentioned drawings are as follows:

[0032] 100, touch outer layer; 110, touch surface; 120, back surface; 130, first variable section; 140, second variable section; 150, constant value section;

[0033] 210, transmitter; 211, first rib; 220, receiver;

[0034] 300, mounting part; 310, mounting frame; 311, first frame body; 311a, first variable part; 311b, second variable part; 311c, first constant value part; 3111, frame body; 31111, clamping surface; 31112, mounting cavity; 3112, clamping strip; 3113, light filtering strip; 3114, second rib;

[0035] 312, second frame body; 312a, third variable part; 312b, fourth variable part; 312c, second constant value part; 313, connecting piece; 314, decorative cover;

[0036] 320, mounting back plate; 321, limiting rib; 322, accommodating cavity; 330, mounting middle frame; 340, buffer foam; 350, dust-proof foam;

[0037] 400, optical component; 410, optical film; 420, display screen;

[0038] 500. Touch input component. Detailed implementation manners

[0039] For a clearer understanding of the technical features, objectives, and effects of this application, the following further describes the detailed implementation manners of this application in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to illustrate this application, but not to limit the protection scope of this application. Based on the embodiments of this application, other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

[0040] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0041] In the description of this application, it should be understood that the numbers themselves herein, such as "first", "second", etc., are only used to distinguish the objects described, without any sequential or technical meaning, and should not be construed as prescribing or implying the importance of the objects described.

[0042] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of this application, the term "plurality" means two or more than two. In addition, the term "and / or" only describes the associated relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0044] In the description of the present application, it should be noted that unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the art to which this technology belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0045] As described in the background art, currently, a touch screen is a human-computer interaction device that can convert touch actions into electrical signals to directly control an electronic device. The touch screen in the related art usually uses an infrared touch method to implement touch operations. The touch operation is performed on the touch outer layer of the touch screen. The touch outer layer has a relatively arranged touch surface and a back surface. At the same time, an infrared transmitter and an infrared receiver are respectively installed at opposite positions on the touch outer layer. The infrared light emitted by the infrared transmitter to the infrared receiver is on the side of the touch surface away from the back surface. To ensure the touch performance of the touch screen, the touch outer layer usually recesses in the direction away from the infrared light. However, the touch outer layer with the above shape easily causes the infrared receiver to sense a touch action when the touch input component does not fall on the touch outer layer. This phenomenon of "floating touch" will make the touch action of the touch input component not match the actual feedback, thus affecting the touch experience.

[0046] Referring to Figures 1 to 9 , to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a touch screen. The touch screen includes a touch outer layer 100, a touch detection unit, and a mounting portion 300. Among them, the touch outer layer 100 is mounted on the mounting portion 300. The touch outer layer 100 has a relatively arranged touch surface 110 and a back surface 120; the touch detection unit is mounted on the mounting portion 300. The touch detection unit includes a transmitter 210 and a receiver 220. Among them, the transmitter 210 can emit detection light, and the receiver 220 can receive detection light. The propagation path of the detection light between the transmitter 210 and the receiver 220 forms a detection route. The detection route is located on the 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 protrudes toward the detection route.

[0047] In the embodiments of the present application, the touch screen is used in cooperation with the touch input component 500, and the touch input component 500 is usually a user's finger or a stylus; the touch outer layer 100 is a cover glass made of tempered glass. 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 board with an infrared emitter, and the receiver 220 is usually an infrared board with an infrared receiver. The direction from the emitter 210 to the receiver 220 is parallel to the first preset direction. In this case, the infrared light forms a detection light, and the propagation path of the detection light is a straight line; in other embodiments, the detection light can also be a laser or other light that can be used to detect touch operations. The specific structures of the emitter 210 and the receiver 220 can be set according to actual detection needs. For example, a conventional infrared emitter and infrared receiver or other touch detection structures can be used, which are not limited here. In addition, in other embodiments, the emitter 210 can be an infrared board with both an infrared emitter and an infrared receiver, and the receiver 220 can be an infrared board with both an infrared emitter and an infrared receiver. Figure 3 and Figure 5 The dotted lines in are all detection routes.

[0048] Since the touch outer layer 100 in the present application protrudes 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 user's finger or stylus will be detected by the touch detection unit 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; by adopting the touch outer layer 100 in the present application, the touch experience of the touch screen is improved on the premise of ensuring the touch performance of the touch screen.

[0049] Referring to Figures 1 to 4 and Figure 9 , in the first embodiment, the thickness of the touch outer layer 100 remains unchanged; the touch outer layer 100 includes a first variable section 130 and a second variable section 140 connected in sequence along the first preset direction. The distance between the first variable section 130 and the detection route gradually decreases along the first preset direction, and the distance between the second variable section 140 and the detection route gradually increases along the first preset direction.

[0050] In this embodiment, there is only one direction for the first preset direction, that is, the direction from the first variable section 130 to the second variable section 140. 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. The first variable section 130 and the second variable section 140 are manufactured by an integral molding process; the design of keeping the thickness of the touch outer layer 100 unchanged simplifies the production process and improves the production efficiency and the yield rate on the premise of reducing the production cost. The above design makes the distance between the touch surface 110 and the detection route show a changing trend of gradually decreasing first and then gradually increasing along the first preset direction. In this case, the touch surface 110 is an outwardly convex arc surface as a whole, and the touch outer layer 100 is an outwardly convex arc plate as a whole.

[0051] Referring to Figures 1 to 4 and Figure 9 , in the first embodiment, the distance between the first variable 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 variable section 140 and the detection route gradually decreases and then gradually increases along the second preset direction.

[0052] In this 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. The above design not only enables the middle part of the touch outer layer 100 to be 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 extend 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 and a second variable section 140 connected in sequence along the first preset direction; the distance between the first variable section 130 and the detection route only 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 variable section 140 and the detection route only gradually decreases and then gradually increases along the second preset direction.

[0053] Referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 9, in the second embodiment, the thickness of the touch outer layer 100 remains unchanged; the touch outer layer 100 includes a first variable segment 130, a constant value segment 150, and a second variable segment 140 that are sequentially connected along a first preset direction. The distance between the first variable segment 130 and the detection route gradually decreases along the first preset direction, the distance between the constant value segment 150 and the detection route remains unchanged along the first preset direction, and the distance between the second variable segment 140 and the detection route gradually increases along the first preset direction.

[0054] In this embodiment, there is only one direction for the first preset direction, that is, the direction from the first variable segment 130 to the constant value segment 150 and then to the second variable segment 140. The first preset direction is usually 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 first variable segment 130, the constant value segment 150, and the second variable segment 140 are manufactured by an integral molding process. The above design makes the distance between the touch surface 110 and the detection route show a changing trend of gradually decreasing first, then remaining unchanged, and then gradually increasing along the first preset direction. In this case, the touch surface 110 is a curved surface with the two side parts being convex and the middle part being flat and unchanged, and the touch outer layer 100 is a curved panel with the two side parts being convex and the middle part being flat.

[0055] Refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 9 , in the second embodiment, the distance between the first variable segment 130 and the detection route gradually decreases, then remains unchanged, and then gradually increases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; the distance between the constant value segment 150 and the detection route remains unchanged along the second preset direction; the distance between the second variable segment 140 and the detection route gradually decreases, then remains unchanged, and then gradually increases along the second preset direction.

[0056] In this 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. The above design not only enables the middle part of the touch outer layer 100 to be closer to the detection route, further improving 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 extend 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 that are sequentially connected along the first preset direction; the distance between the first variable section 130 and the detection route only gradually decreases along the second preset direction, then remains unchanged, and then gradually increases, and the second preset direction is perpendicular to the first preset direction; the distance between the constant value section 150 and the detection route only remains unchanged along the second preset direction; the distance between the second variable section 140 and the detection route only gradually decreases along the second preset direction, then remains unchanged, and then gradually increases.

[0057] Referring to Figure 1 , Figure 2 and Figures 7 to 10 , in one embodiment, the mounting portion 300 includes a mounting frame 310, and the mounting frame 310 includes two first frames 311 spaced apart along the first preset direction; the first frame 311 has a first mounting space, and a partial structure of the touch outer layer 100 is located in the first mounting space, and two opposite inner wall surfaces in the first mounting space are in contact with the touch surface 110 and the back surface 120 respectively.

[0058] In this embodiment, two opposite inner wall surfaces in the first mounting space will respectively apply a clamping force to the touch surface 110 and the back surface 120, so that the touch outer layer 100 is stably mounted on the first frame 311; the provided first frame 311 serves to mount and carry the touch outer layer 100.

[0059] Referring to Figure 1 , Figure 2 , Figure 7 , Figure 9 and Figure 10 , in the third embodiment, the first frame 311 includes a first variable part 311a and a second variable part 311b that are sequentially connected along the 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.

[0060] In this embodiment, there is only one direction for the second preset direction, that is, the direction from the first variable part 311a to the second variable part 311b. 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. The first variable part 311a and the second variable part 311b are manufactured by an integral molding process, and at the same time, 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 gradually decrease first and then gradually increase along the second preset direction, so that the distance between the touch outer layer 100 and the detection route gradually decreases first and then gradually increases along the second preset direction. 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. At the same time, to make the detection route a straight line, usually the transmitter 210 and the receiver 220 in the touch detection part will be adjusted according to the bending condition of the first frame 311 so that the detection route is parallel to the first preset direction and is a straight line.

[0061] Referring to Figure 1 , Figure 2 and Figures 8 to 10 , in the fourth embodiment, the first frame 311 includes a first variable part 311a, a first constant value part 311c, and a second variable part 311b that are sequentially connected along the second preset direction. 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. The distance between the first constant value part 311c and the detection route remains unchanged along the second preset direction. The distance between the second variable part 311b and the detection route gradually increases along the second preset direction.

[0062] In this embodiment, there is only one direction for the second preset direction, that is, the direction from the first variable part 311a to the first constant value part 311c and then to the second variable part 311b. The second preset direction is usually 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. The first variable part 311a, the first constant value part 311c, and the second variable part 311b are manufactured by an integral molding process, and at the same time, 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 show a changing trend of gradually decreasing first, then remaining unchanged, and then gradually increasing along the second preset direction, so that the distance between the touch outer layer 100 and the detection route shows a changing trend of gradually decreasing first, then remaining unchanged, and then gradually increasing 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, to make the detection route a straight line, usually the transmitter 210 and the receiver 220 in the touch detection part will be adjusted according to the bending condition of the first frame 311, so that the detection route is parallel to the first preset direction and is a straight line.

[0063] Referring to Figure 1 , Figure 2 and Figures 7 to 10 , in one embodiment, the mounting frame 310 further includes two second frames 312 spaced apart along the second preset direction, and the adjacent first frame 311 and the second frame 312 are connected. The second frame 312 has a second installation space, and a part of the structure of the touch outer layer 100 is located in the second installation space. The two opposite inner wall surfaces in the second installation space are in contact with the touch surface 110 and the back surface 120 respectively.

[0064] In this embodiment, the adjacent first frame 311 and the second frame 312 are perpendicular to each other. The two opposite inner wall surfaces in the second installation space will respectively apply a clamping force to the touch surface 110 and the back surface 120, so that the touch outer layer 100 is stably installed on the second frame 312. The provided second frame 312 plays a role in installing and carrying the touch outer layer 100. In addition, to facilitate the manufacture of the mounting frame 310, usually the structure of the second frame 312 is the same as that of the first frame 311. Of course, in other embodiments, the structure of the second frame 312 can also be different from that of the first frame 311.

[0065] In addition, the installation frame 310 further includes a connecting member 313, and adjacent first frame bodies 311 and second frame bodies 312 are connected by the connecting member 313. Specifically, the number of the connecting members 313 is four. The connecting members 313 are generally L-shaped connecting bars. A part of the structure of the connecting member 313 is inserted into the interior of the first frame body 311 among the adjacent first frame body 311 and second frame body 312, and is connected to the first frame body 311 by a connecting bolt. Another part of the structure of the connecting member 313 is inserted into the interior of the second frame body 312 and is connected to the second frame body 312 by a connecting bolt. The remaining part of the structure of the connecting member 313 is located between the adjacent first frame body 311 and second frame body 312. By adopting the connecting member 313 in this application, two first frame bodies 311 and two second frame bodies 312 can be connected end to end to form the installation frame 310. In addition, to improve the aesthetics of the touch screen, a decorative cover 314 is installed on the connecting member 313, and the decorative cover 314 covers and installs on the part of the structure of the connecting member 313 located between the adjacent first frame body 311 and second frame body 312.

[0066] Referring to Figure 1 , Figure 2 , Figure 7 , Figure 9 and Figure 10 , in the third embodiment, the second frame body 312 includes a third variable part 312a and a fourth variable part 312b that are sequentially connected along a first preset direction. The distance between the third variable part 312a and the detection route gradually decreases along the first preset direction, and the distance between the fourth variable part 312b and the detection route gradually increases along the first preset direction.

[0067] In this embodiment, there is only one direction for the first preset direction, that is, the direction from the third variable part 312a to the fourth variable part 312b. 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 part 312a and the fourth variable part 312b are manufactured by an integral molding process; the above design makes the distance between the second frame body 312 and the detection route show a changing trend of gradually decreasing first and then gradually increasing along the first preset direction, so that the middle part of the touch outer layer 100 can be closer to the detection route. On the premise of ensuring the touch performance of the touch screen, the touch experience of the touch screen is further improved. At the same time, it is also beneficial 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 extend 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.

[0068] Referring to Figure 1 , Figure 2 andFigures 8 to 10 In the fourth embodiment, the second housing 312 includes a third varying portion 312a, a second constant-value portion 312c, and a fourth varying portion 312b that are sequentially connected along a first preset direction. The distance between the third varying portion 312a and the detection route gradually decreases along the first preset direction, the distance between the second constant-value portion 312c and the detection route remains unchanged along the first preset direction, and the distance between the fourth varying portion 312b and the detection route gradually increases along the first preset direction.

[0069] In this embodiment, there is only one direction for the first preset direction, that is, the direction from the third varying portion 312a to the second constant-value portion 312c and then to the fourth varying portion 312b. 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 varying portion 312a, the second constant-value portion 312c, and the fourth varying portion 312b are manufactured by an integral molding process; the above design enables the distance between the second housing 312 and the detection route to show a changing trend of gradually decreasing first, then remaining unchanged, and then gradually increasing along the first preset direction, so that the middle part of the touch outer layer 100 can be closer to the detection route. On the premise of ensuring the touch performance of the touch screen, the touch experience of the touch screen is further improved. At the same time, it is also beneficial 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 extend the service life of the touch outer layer 100. In addition, the fourth embodiment can also be combined with the second embodiment to ensure the stability of the touch outer layer 100.

[0070] Referring to Figure 3 、 Figure 5 、 Figure 9 、 Figure 10 and Figure 12 In one embodiment, the first housing 311 includes a housing body 3111 and a clamping strip 3112. The housing body 3111 has a clamping surface 31111. The clamping strip 3112 is installed on the housing body 3111 and is arranged towards the clamping surface 31111. A clamping area is formed between the clamping surface 31111 and the surface of the clamping strip 3112 close to the clamping surface 31111; a partial structure of the touch outer layer 100 is located in the clamping area. The clamping surface 31111 and the surface of the clamping strip 3112 close to the clamping surface 31111 are respectively in contact with the touch surface 110 and the back surface 120, and the clamping area is formed into an installation space.

[0071] In this embodiment, to ensure the stability of the touch outer layer 100 on the mounting frame 310, after a 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, to facilitate the entry of a part of the structure of the touch outer layer 100 into the clamping area, the clamping strip 3112 is detachably mounted on the frame body 3111 through a connecting bolt. In addition, to reduce the manufacturing cost, the number of the clamping strips 3112 is multiple, and the multiple clamping strips 3112 are arranged at intervals along the length direction of the frame body 3111. In other embodiments, the number of the clamping strips 3112 can also be one.

[0072] Referring to Figure 3 , Figure 5 , Figure 9 and Figure 11 , in one embodiment, the frame body 3111 is provided with mounting cavities 31112, and the transmitter 210 and the receiver 220 are respectively mounted in two mounting cavities 31112 arranged at intervals along the first preset direction; the mounting cavity 31112 has an opening for the detection light to pass through.

[0073] Referring to Figure 3 , Figure 5 , Figure 9 and Figure 11 , in one embodiment, the transmitter 210 has two relatively arranged first ridges 211, and an angle is formed between the direction from one first ridge 211 to the other first ridge 211 and the extending direction of the opening; first grooves are provided on two opposite cavity walls in the mounting cavity 31112, and the two first ridges 211 are respectively arranged in one-to-one correspondence with the two first grooves; the transmitter 210 is mounted in the mounting cavity 31112 by inserting the first ridges 211 into the corresponding first grooves. In addition, the external structure of the receiver 220 is basically the same as that of the transmitter 210.

[0074] Referring to Figure 3 , Figure 5 , Figure 9 and Figure 12 , in one embodiment, the first frame 311 further includes a light filtering strip 3113, and the light filtering strip 3113 is mounted in the opening; the light filtering strip 3113 seals the opening. The light filtering strip 3113 has two second ridges 3114, and an angle is formed between the direction from one second ridge 3114 to the other second ridge 3114 and the extending direction of the opening; second grooves are provided on two opposite inner wall surfaces in the opening, and the two second ridges 3114 are respectively arranged in one-to-one correspondence with the two second grooves; the light filtering strip 3113 is mounted in the opening by inserting the second ridges 3114 into the corresponding second grooves.

[0075] Reference Figure 3 and Figure 5 In one 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 1 mm.

[0076] Reference Figure 1 、 Figure 2 、 Figure 7 and Figure 8 In one embodiment, the number of touch detection units is two groups. Among them, the direction from the transmitter 210 to the receiver 220 in one group of touch detection units is parallel to the first preset direction, and the direction from the transmitter 210 to the receiver 220 in the other group of touch detection units is parallel to the second preset direction. The above design is beneficial to improving the touch accuracy of the touch screen and improving the touch experience of the touch screen.

[0077] Reference Figure 9 In one embodiment, the installation part 300 further includes an installation back plate 320. The installation back plate 320 is located on the side of the back surface 120 away from the touch surface 110, and the installation back plate 320 is connected to the installation frame 310; the touch screen further includes an optical component 400. The optical component 400 is located on the side of the back surface 120 away from the touch surface 110, and the optical component 400 is installed on the installation back plate 320.

[0078] Reference Figure 9 In one embodiment, the installation back plate 320 has a limiting rib 321. The limiting rib 321 protrudes towards the installation frame 310, and a limiting groove is provided on the surface of the installation frame 310 close to the installation back plate 320. The limiting rib 321 is inserted into the limiting groove. In this embodiment, the limiting rib 321 is formed by bending the edge of the installation back plate 320.

[0079] Reference Figure 9 In one embodiment, the optical component 400 includes an optical film 410. The optical film 410 is installed on the installation back plate 320; the installation part 300 further includes an installation middle frame 330. The installation middle frame 330 is installed on the surface of the installation back plate 320 close to the touch outer layer 100, and a buffer foam 340 is clamped between the installation middle frame 330 and the optical film 410.

[0080] In this embodiment, a receiving cavity 322 is provided on the surface of the mounting backplane 320 close to the touch outer layer 100. The optical accessory further includes a plurality of optical accessories. The plurality of optical accessories are all mounted in the receiving cavity 322 and are arranged in a stacked manner in sequence along the extending direction of the receiving cavity 322. 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 close to the touch outer layer 100, and is fixedly mounted on the mounting backplane 320. The specific structure of the optical film 410 and its specific connection manner with the mounting backplane 320 belong to the common knowledge of those skilled in the art and will not be elaborated in detail here; the mounting middle frame 330 is fixedly mounted on the surface of the mounting backplane 320 close to the touch outer layer 100 through connecting bolts.

[0081] Referring to Figure 9 , in one embodiment, the optical component 400 further includes a display screen 420. The display screen 420 is located between the touch outer layer 100 and the optical film 410, and the touch outer layer 100 covers the display screen 420; an installation groove is provided on the surface of the mounting middle frame 330 close to the touch outer layer 100. The installation groove has an installation groove bottom. A part of the structure of the display screen 420 is arranged on the installation groove bottom and is connected to the installation groove bottom through a connecting adhesive.

[0082] In this embodiment, the display screen 420 is a conventional display structure, and its specific structure belongs to the common knowledge of those skilled in the art and will not be elaborated in detail here; the display screen 420 is usually fixedly adhered to the installation groove bottom by double-sided tape or other adhesive materials. In addition, to prevent the mounting middle frame 330 from damaging the display screen 420, a rubber pad or a protective pad is fixedly mounted on the groove wall of the installation groove adjacent to the installation groove bottom.

[0083] Referring to Figure 9 , in one embodiment, a dust-proof foam 350 is clamped between the touch outer layer 100 and the display screen 420, and the dust-proof foam 350 is arranged around the circumference of the display screen 420. The arranged dust-proof foam 350 prevents external dust from 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.

[0084] Referring to Figures 1 to 12 , according to another aspect of the present application, an embodiment of the present application further provides a display device, and the display device includes the above-mentioned touch screen.

[0085] In summary, the touch screen and display device provided by the present embodiment have at least the following beneficial technical effects: since the touch outer layer 100 in the present application is protruding toward 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 user's finger or stylus will be detected by the touch detection unit 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 in line with the feeling of natural writing; by adopting 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.

[0086] The above are only preferred implementation modes of the present application, but the protection scope of the present application is not limited thereto. It should be pointed out that for those skilled in the art, several equivalent obvious variations and / or equivalent replacement modes can be made without departing from the technical principles of the present application, and these obvious variations and / or equivalent replacement modes should also be regarded as the protection scope of the present application.

Claims

1. A touch screen, characterized in that, It includes a touch outer layer (100), a touch detection part, and a mounting part (300). Among them, the touch outer layer (100) is mounted on the mounting part (300), and the touch outer layer (100) has a relatively arranged touch surface (110) and a back surface (120); The touch detection part is mounted on the mounting part (300). The touch detection part includes a transmitter (210) and a receiver (220). Among them, the transmitter (210) can emit detection light, the receiver (220) can receive the detection light, and the propagation path of the detection light between the transmitter (210) and the receiver (220) forms a detection route. The detection route is located on the 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) protrudes towards the detection route.

2. The touch screen according to claim 1, characterized in that, The thickness of the touch outer layer (100) remains unchanged; The touch outer layer (100) includes a first variable section (130) and a second variable section (140) connected in sequence along the first preset direction; The distance between the first variable section (130) and the detection route gradually decreases along the first preset direction, and the distance between the second variable section (140) and the detection route gradually increases along the first preset direction; and / or, The distance between the first variable section (130) and the detection route gradually decreases and then gradually increases along a second preset direction, and the second preset direction is perpendicular to the first preset direction; The distance between the second variable section (140) and the detection route gradually decreases and then gradually increases along the second preset direction.

3. The touch screen according to claim 1, wherein, 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 the first preset direction; The distance between the first variable 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 variable section (140) and the detection route gradually increases along the first preset direction; and / or, The distance between the first variable section (130) and the detection route gradually decreases, then remains unchanged, and then gradually increases along a second preset direction, and 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; The distance between the second variable section (140) and the detection route gradually decreases, then 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 installation part (300) includes an installation frame (310), and the installation frame (310) includes two first frame bodies (311) spaced apart along the first preset direction; the first frame body (311) has a first installation space, and part of the structure of the touch outer layer (100) is located in the first installation space, and the two opposite inner wall surfaces in the first installation space are in contact with the touch surface (110) and the back surface (120) respectively.

5. The touch screen according to claim 4, characterized in that, The first frame body (311) includes a first variable part (311a) and a second variable part (311b) connected in sequence along the 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.

6. The touch screen according to claim 4, wherein, The first frame body (311) includes a first variable part (311a), a first constant value part (311c), and a second variable part (311b) connected in sequence along the 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, 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 variable 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 installation frame (310) further includes two second frame bodies (312) spaced apart 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 installation space, and part of the structure of the touch outer layer (100) is located in the second installation space, and the two opposite inner wall surfaces in the second installation space are in contact with the touch surface (110) and the back surface (120) respectively.

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

9. The touch screen according to claim 7, characterized in that, The second frame body (312) includes a third variable part (312a), a second constant value part (312c), and a fourth variable part (312b) connected in sequence along the first preset direction, the distance between the third variable 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 variable 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, characterized in that, The shortest distance between the touch surface (110) and the detection line is greater than or equal to 0 and less than or equal to 5 mm.

11. A display device, characterized in that, The display device includes the touch screen according to any one of claims 1 to 10.

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