Resistive touch display device and electronic equipment

Abstract

This invention provides a resistive touch display device and an electronic device. The resistive touch display device includes a display module and a touch screen. One side of the display module has a light-emitting surface configured to emit a light beam. The touch screen is disposed in the display module near the light-emitting surface and includes a light-transmitting conductive substrate and a light-transmitting conductive film. The light-transmitting conductive substrate is disposed between the light-emitting surface and the light-transmitting conductive film. The size of the light-transmitting conductive film is larger than the size of the light-transmitting conductive substrate, and the light-transmitting conductive film completely covers the side of the light-transmitting conductive substrate away from the light-emitting surface. The light-transmitting conductive film includes a pressing portion and an extension portion. The pressing portion is aligned with the light-transmitting conductive substrate and is electrically connected to the light-transmitting conductive substrate after being pressed. The extension portion surrounds the circumference of the pressing portion. Embodiments of this invention simplify the structure, improve the presentation effect of the resistive touch display device, and enhance touch sensitivity.

Description

Technical Field

[0001] This utility model relates to the field of human-machine interface technology, and in particular to a resistive touch display device. Background Technology

[0002] Resistive touch HMIs are a commonly used type of HMI, characterized by strong environmental adaptability and low cost. They receive user commands through pressure, eliminating the need for skin contact, and are widely used in industrial applications. Existing resistive touch HMIs mainly include two structural types, but both have drawbacks.

[0003] Figure 1 A cross-section of an existing resistive touch human-machine interface is shown, which has multiple structural layers on the front side of the light-emitting surface and a cover layer on the outermost side for protection. Figure 1 The resistive touch HMI structure shown not only increases the structural thickness of the resistive touch HMI, but also affects light transmittance and touch sensitivity, thus reducing the user experience.

[0004] The content of the background section is merely the technology known to the inventor and does not necessarily represent the prior art in this field. Utility Model Content

[0005] To address one or more deficiencies in the prior art, this utility model provides a resistive touch display device, comprising:

[0006] A display module, wherein one side of the display module has a light-emitting surface configured to emit a light beam; and

[0007] A touch screen is disposed in the display module on the side near the light-emitting surface, and the touch screen includes a light-transmitting conductive substrate and a light-transmitting conductive film;

[0008] The light-transmitting conductive substrate is disposed between the light-emitting surface and the light-transmitting conductive film;

[0009] The size of the light-transmitting conductive film is larger than the size of the light-transmitting conductive base layer, and the light-transmitting conductive film completely covers the side of the light-transmitting conductive base layer away from the light-emitting surface; the light-transmitting conductive film includes a pressing portion and an extension portion, the pressing portion is aligned with the light-transmitting conductive base layer, and is electrically connected to the light-transmitting conductive base layer after being pressed; the extension portion surrounds the circumference of the pressing portion.

[0010] According to one aspect of the present invention, the touchscreen further includes:

[0011] An isolation layer is disposed on the side of the light-transmitting conductive film facing the light-transmitting conductive base layer and at least partially corresponds to the extension portion; the isolation layer is opaque.

[0012] According to one aspect of the present invention, the isolation layer is located circumferentially on the light-transmitting conductive base layer, and the isolation layer partially overlaps with the light-transmitting conductive base layer.

[0013] According to one aspect of the present invention, the resistive touch display device further includes:

[0014] A housing having a cavity with a circumferential mating surface, the display module being disposed within the cavity; and

[0015] An adhesive layer is disposed at the mating surface in the circumferential direction of the cavity and is adhered and fixed to the touch screen;

[0016] The extension corresponds to the position of the mating surface, and the extension closes the cavity at the position of the mating surface.

[0017] According to one aspect of the present invention, the mating surface includes a folded edge extending outward from the cavity, the touch screen is bonded and fixed to the folded edge by the adhesive layer, and the edge of the touch screen is aligned with the edge of the folded edge.

[0018] According to one aspect of the present invention, the display module includes a frame, the frame and the folded edge being flush in a plane parallel to the light-emitting surface; one side of the adhesive layer is adhered and fixed to the touch screen, and the other side of the adhesive layer is adhered and fixed to both the folded edge and the frame.

[0019] According to one aspect of the present invention, the dimension of the light-transmitting conductive substrate in the direction perpendicular to the light-emitting surface is larger than the dimension of the adhesive layer in the direction perpendicular to the light-emitting surface; the touch screen further includes a cable connected to the light-transmitting conductive substrate and extending into the interior of the cavity; the adhesive layer seals the connection position between the light-transmitting conductive substrate and the cable.

[0020] According to one aspect of the present invention, the light-transmitting conductive substrate is at least partially located within the cavity, and a support structure is provided within the cavity, the support structure abutting against the side of the light-transmitting conductive substrate away from the light-transmitting conductive film.

[0021] According to one aspect of the present invention, the light-transmitting conductive base layer extends outside the cavity, and the side of the portion of the light-transmitting conductive base layer outside the cavity is bonded and fixed to the light-transmitting conductive film.

[0022] According to one aspect of the present invention, the extension further includes a light-transmitting area, at a position corresponding to the light-transmitting area, where the isolation layer is vacant.

[0023] According to one aspect of the present invention, the touch screen constitutes the front end face of the resistive touch display device, and no cover layer is provided on the side of the touch screen away from the display module; the circumferential edge of the touch screen is flush with the circumferential edge of the resistive touch display device.

[0024] According to one aspect of the present invention, the housing includes a sidewall that surrounds the circumference of the touchscreen and is flush with the height of the touchscreen, or the sidewall protrudes from the touchscreen.

[0025] According to one aspect of the present invention, the size of the light-transmitting conductive substrate is approximately equal to the size of the light-emitting surface, and the light-transmitting conductive substrate completely covers the light-emitting surface.

[0026] According to one aspect of the present invention, the width of the extension is not greater than 30 mm.

[0027] Compared with the prior art, the embodiments of this utility model provide a resistive touch display device. The light-transmitting conductive film in the touch screen covers the light-transmitting conductive base layer in the circumferential direction. The light-transmitting conductive film can protect the resistive touch display device, reduce the number of structural layers on the front of the light-emitting surface, and the pressing part and the light-transmitting conductive base layer have little impact on the light beam emitted by the light-emitting surface. This helps to simplify the structure of the resistive touch display device, improve the presentation effect of the resistive touch display device, and enhance the touch sensitivity.

[0028] Embodiments of this utility model also include an electronic device, comprising the resistive touch display device as described in the foregoing embodiments. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a cross-sectional schematic diagram of an existing resistive touch human-machine interface;

[0031] Figure 2 This is an exploded view of a resistive touch display device in some embodiments of this utility model;

[0032] Figure 3 This is a cross-sectional view of a resistive touch display device in some embodiments of this utility model;

[0033] Figure 4 This is a cross-sectional view of the light-transmitting conductive base layer and the outer shell being bonded and fixed in some embodiments of this utility model;

[0034] Figure 5This is a cross-sectional view of the outer shell sidewall in some embodiments of this utility model. Detailed Implementation

[0035] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The following description of the utility model provides many different embodiments or examples for implementing various structures of the present utility model. To simplify the description of the utility model, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the present utility model. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the present utility model; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0041] Figure 2 An exploded view of a resistive touch display device 100 in some embodiments of the present invention is shown. Figure 3 A cross-sectional schematic diagram of a resistive touch display device 100 in some embodiments of the present invention is shown. The following is in conjunction with... Figure 2 and Figure 3 The resistive touch display device 100 will be described.

[0042] See Figure 2 The resistive touch display device 100 includes a display module 110 and a touch screen 120.

[0043] The display module 110 has a light-emitting surface 111 on one side, which can emit a light beam. In some embodiments, the display module 110 includes, for example, a liquid crystal display screen and a backlight. The backlight can emit a light beam through the liquid crystal display screen to display a preset graphic signal. The display module 110 also includes, for example, a controller and a power supply. The controller can control the light-emitting surface 111 to emit a preset light beam, and the power supply provides energy to control the liquid crystal display screen and drive the backlight. Alternatively, in some embodiments, the display module 110 also includes a data interface and a power interface. The data interface can be connected to an external controller, which can control the light-emitting surface 111 to emit a preset light beam, and the power interface can obtain power from an external power source to control the liquid crystal display screen and drive the backlight.

[0044] In some embodiments, the display module 110 is generally flat, and the light-emitting surface 111 is generally rectangular. The display module 110 can be embedded inside an electronic device and can be controlled to present preset graphic signals to the user, such as outputting operating information of the electronic device, order information, etc.

[0045] See Figure 2 The touchscreen 120 is disposed in the display module 110 on the side close to the light-emitting surface 111. In some embodiments, the side of the touchscreen 120 facing the light-emitting surface 111 may be in contact with the light-emitting surface 111, or may have a small gap from the light-emitting surface 111, which is beneficial to reduce the size of the resistive touch display device 100 in the direction perpendicular to the light-emitting surface 111.

[0046] See Figure 3 The touchscreen 120 includes a light-transmitting conductive integrated circuit 121 and a light-transmitting conductive film 122. For ease of understanding, in... Figure 3 The dimensions of some structures are enlarged and do not represent the actual size ratio. A light-transmitting conductive substrate 121 is disposed between the light-emitting surface 111 and the light-transmitting conductive film 122. In some embodiments, the light-transmitting conductive substrate 121 has a certain rigidity; for example, the light-transmitting conductive substrate 121 includes conductive glass, with a conductive layer on the side of the conductive glass facing the light-transmitting conductive film 122, which can resist pressure deformation and reduce the risk of the user affecting the display module 110 when operating the touchscreen 120. In some embodiments, the side of the light-transmitting conductive substrate 121 facing the light-emitting surface 111 can be spaced apart from the light-emitting surface 111, and the gap between the light-transmitting conductive substrate 121 and the light-emitting surface 111 can absorb deformation, further reducing the risk of the user affecting the display module 110 when operating the touchscreen 120.

[0047] A light-transmitting conductive film 122 is located on the side of the light-transmitting conductive substrate 121 away from the light-emitting surface 111. The light-transmitting conductive film 122 is capable of elastic deformation; for example, it may include a semiconductor film. An ITO film may include a substrate and a semiconductor material formed on the substrate, such as a metal oxide semiconductor material like ITO (indium tin oxide). The side of the light-transmitting conductive film 122 facing the light-transmitting conductive substrate 121 has a conductive layer. When the light-transmitting conductive film 122 is pressed, the conductive layer of the light-transmitting conductive film 122 and the conductive layer of the light-transmitting conductive substrate 121 become connected, and the change in electrical signal can represent the user's input signal.

[0048] In some embodiments, the transparent conductive film 122 may further include a silver nanowire conductive film, a carbon nanotube conductive film, a composite metal mesh flexible film, a polymer conductive film, etc.

[0049] See Figure 3 The size of the light-transmitting conductive film 122 is larger than the size of the light-transmitting conductive substrate 121, and the light-transmitting conductive film 122 completely covers the side of the light-transmitting conductive substrate 121 away from the light-emitting surface 111. The fact that the light-transmitting conductive film 122 completely covers the side of the light-transmitting conductive substrate 121 away from the light-emitting surface 111 means that in a plane parallel to the light-emitting surface 111, the projection of the light-transmitting conductive substrate 121 is completely within the projection range of the light-transmitting conductive film 122.

[0050] In some embodiments, the light-transmitting conductive substrate 121 is generally rectangular, for example, and the light-transmitting conductive film 122 can be a rectangle with both its length and width dimensions larger than the light-transmitting conductive substrate 121, and completely cover the light-transmitting conductive substrate 121. Alternatively, the light-transmitting conductive film 122 can be other shapes, such as a circle with a diameter larger than the long side of the light-transmitting conductive substrate 121, or an ellipse with its major axis larger than the long side of the light-transmitting conductive substrate 121 and its minor axis larger than the short side of the light-transmitting conductive substrate 121, and completely cover the light-transmitting conductive substrate 121.

[0051] See Figure 3 In some embodiments, the size of the light-transmitting conductive substrate 121 is approximately equal to the size of the light-emitting surface 111, and the light-transmitting conductive substrate 121 completely covers the light-emitting surface 111. Alternatively, in some embodiments, the size of the light-transmitting conductive substrate 121 is slightly larger than the size of the light-emitting surface 111. The light-transmitting conductive substrate 121 can protect the light-emitting surface 111, allowing the touch area to cover the entire area of ​​the light-emitting surface 111, thereby improving the user experience.

[0052] See Figure 3The light-transparent conductive film 122 includes a pressing portion 1221 and an extension portion 1222. The pressing portion 1221 is aligned with the light-transparent conductive base layer 121, and the pressing portion 1221 is electrically connected to the light-transparent conductive base layer 121 after being pressed. In some embodiments, the projection of the pressing portion 1221 and the projection of the light-transparent conductive base layer 121 completely coincide in a plane parallel to the light-emitting surface 111. After being pressed, the pressing portion 1221 moves closer to the light-transparent conductive base layer 121 until it makes contact. The conductive layer of the light-transparent conductive film 122 facing the light-transparent conductive base layer 121 and the conductive layer of the light-transparent conductive base layer 121 facing the light-transparent conductive film 122 contact each other, achieving electrical connection. The change in the electrical signal can be acquired to indicate a user input command through pressing and to determine the location of the user's press. In some embodiments, a plurality of insulating points 124 are provided between the pressing part 1221 and the light-transmitting conductive base layer 121. The insulating points 124 can allow the pressing part 1221 and the light-transmitting conductive base layer 121 to be spaced apart from each other when there is no pressure, reducing the risk of accidental touch, improving touch accuracy, and reducing coordinate drift caused by deformation of the pressing part 1221.

[0053] The extension 1222 surrounds the circumferential edge of the pressing portion 1221. In some embodiments, the extension 1222 surrounds the entire circumferential range of the pressing portion 1221, completely enclosing it. In some embodiments, the width dimensions of the circumferential extensions 1222 of the pressing portion 1221 are substantially equal. In some embodiments, for example, the width dimension of the pressing portion 1221 (the dimension perpendicular to the side direction of the extension 1222) is not greater than 30 mm, specifically, for example, 10 mm, 12 mm, 15 mm, 18 mm, 22 mm, 25 mm, 30 mm, etc. In some embodiments, the width dimensions of the circumferential extensions 1222 of the pressing portion 1221 may also be unequal. For example, within the range of the extension 1222, sensors, indicators, or marking images may be formed as indicators or decorations. The width dimension of the circumferential extensions 1222 of the pressing portion 1221 can be selected according to the structural design and specific needs.

[0054] The pressing part 1221 and the extension part 1222 can be obtained by cutting the same blank. Figure 2 and Figure 3 In this context, the dividing position between the pressing part 1221 and the extension part 1222 is only for ease of understanding and does not necessarily mean that there is a gap or splicing between the pressing part 1221 and the extension part 1222.

[0055] In this embodiment, the light-transmitting conductive film 122 completely covers the light-transmitting conductive base layer 121, and the extension 1222 extends to the circumferential outer side of the pressing part 1221. The extension 1222 can protect or seal the resistive touch display device 100, eliminating the need for a cover layer on the outside of the resistive touch display device 100, reducing the number of structural layers in front of the light-emitting surface 111, and lowering material costs. Users can directly operate the resistive touch display device 100 through the pressing part 1221, which helps to simplify the structure of the resistive touch display device 100, reduce the structural size of the resistive touch display device 100, improve the transmittance of the light beam emitted from the light-emitting surface 111 and the touch sensitivity, and enhance the user experience.

[0056] See Figure 3 In some embodiments, the touchscreen 122 further includes an isolation layer 123. The isolation layer 123 is disposed on the side of the light-transmitting conductive film 122 facing the light-transmitting conductive base layer 1221, and the isolation layer 123 at least partially corresponds to the extension 1222. In some embodiments, the area covered by the isolation layer 123 is slightly larger than the area of ​​the extension 1222, which helps to reduce the requirements for processing precision. See also Figure 3 In some embodiments, the size of the insulating layer 123 is larger than the size range of the extension 1222. The insulating layer 123 completely covers the area corresponding to the extension 1222 and partially covers the area corresponding to the pressing portion 1221. Furthermore, the insulating layer 123 is located circumferentially on the light-transmitting conductive base layer 121, and the insulating layer 123 partially overlaps with the light-transmitting conductive base layer 121. See also... Figure 3 The thickness of the isolation layer 123 can allow the transparent conductive film 122 and the transparent conductive base layer 121 to be spaced apart from each other. Preferably, the isolation layer 123 is an insulator, which reduces the risk of electrical connection at the edge of the transparent conductive base layer 121.

[0057] In this embodiment, the isolation layer 123 is opaque. For example, the isolation layer 123 may include a light-shielding material, which may be brushed, printed, or deposited on the side of the light-transmitting conductive film 122 facing the light-transmitting conductive substrate 1221. Specifically, in some embodiments, the light-shielding material includes, for example, paint or ink. In some embodiments, the isolation layer 123 may include a light-shielding sheet, which may be adhered to the side of the light-transmitting conductive film 122 facing the light-transmitting conductive substrate 1221. Further, the light-shielding sheet may be processed into a preset shape, such as a frame with a hollow center, and at least partially correspond to the extension 1222.

[0058] The isolation layer 123 can shield the circuits and structures inside the transparent conductive film 122, improving the visual effect of the resistive touch display device 100. In some embodiments, the isolation layer 123 can be selected as a dark color, such as black, which helps to improve the contrast effect with the light beam emitted from the light-emitting surface 111 and enhance the image signal presentation effect of the resistive touch display device 100.

[0059] According to some embodiments of this utility model, see Figure 3 The resistive touch display device 100 also includes a housing 130 and an adhesive layer 140.

[0060] The outer casing 130 has a cavity 131. A mating surface 132 is located circumferentially around the cavity 131. The display module 110 is disposed inside the cavity 131. Specifically, according to a preferred embodiment of the present invention, the outer casing 130 is generally rectangular, with the cavity 131 formed inside the cuboid. One side of the cuboid is open, forming the opening of the cavity 131. The display module 110 can be disposed inside the cavity 131 through the opening. In some embodiments, the size of the cavity 131 matches the size of the display module 110, improving the stability of the display module 110 inside the cavity 131. Furthermore, a positioning member can be provided inside the cavity 131, and the display module 110 is fixedly disposed inside the cavity 131 by the positioning member.

[0061] In some embodiments, the cavity 131 has a larger dimension in the direction perpendicular to the light-emitting surface 111 than the display module 110 has a larger dimension in the direction perpendicular to the light-emitting surface 111. The display module 110 is completely submerged in the cavity 131, reducing the risk of the side of the display module 110 being exposed from the edge of the cavity 131, which is beneficial for protecting the resistive touch display device 100.

[0062] An adhesive layer 140 is disposed at the mating surface 132 circumferentially around the cavity 131 and is adhered and fixed to the touchscreen 120. The adhesive layer 140 may include, for example, double-sided adhesive, with one side adhered to one side of the touchscreen 120 and the other side adhered to the mating surface 132. In some embodiments, the adhesive layer 140 may also be applied by brushing adhesive onto the touchscreen 120 facing the housing 130 and corresponding to the mating surface 132, or by brushing adhesive onto the mating surface 132 itself. In some embodiments, the adhesive layer 140 is uniformly formed at the mating surface 132, and the cavity 131 is sealed using the adhesive layer 140 and the touchscreen 120. See also Figure 3 The extension 1222 and the mating surface 132 are positioned correspondingly, and the extension 1222 seals the cavity 131 at the position of the mating surface 132.

[0063] The adhesive layer 140 can provide a waterproof and dustproof seal for the cavity 131, reducing the impact of the external environment on the resistive touch display device 100. In some embodiments, the mating surface 132 has an adhesive groove, and the adhesive layer 140 is located in the adhesive groove. The adhesive groove can seal the adhesive layer 140 from the side, further improving the sealing effect of the cavity 131 and reducing the risk of the adhesive layer 140 being damaged.

[0064] See Figure 3 According to a preferred embodiment of the present invention, the mating surface 132 includes a folded edge extending outward from the cavity 131, and the touch screen 120 is bonded and fixed to the folded edge by an adhesive layer 140. The folded edge structure increases the bonding area between the adhesive layer 140 and the mating surface 132, which is beneficial for improving the structural stability of the resistive touch display device 100 and the sealing effect on the cavity 131. Specifically, for example, the outer shell 130 is made of stamped metal material, and the folded edge extending outward is formed during the stamping process of the metal sheet. Alternatively, the outer shell 130 is injection molded from plastic, and the plastic injection mold has a folded edge extending outward from the cavity 131.

[0065] In a preferred embodiment of this invention, the edge of the touchscreen 120 is aligned with the edge of the folded edge, for example... Figure 3 The left and right edges shown are aligned. Preferably, the plane containing the edges of the touchscreen 120 and the folded edge is approximately perpendicular to the light-emitting surface 111. The thickness of the light-transmitting conductive film 122 in the touchscreen 120 is small, for example, less than 0.2 mm. The side force-bearing surface of the light-transmitting conductive film 122 is small. Aligning the edges of the touchscreen 120 with the edges of the folded edge helps to improve the bonding stability between the touchscreen 120 and the bonding surface 132. Furthermore, the alignment of the edges of the touchscreen 120 with the edges of the folded edge eliminates the structural frame of the outer shell 130, which simplifies the structure of the resistive touch display device 100 and reduces its structural size.

[0066] like Figure 2 and Figure 3 As shown, in some embodiments, the display module 110 further includes a frame 112. The folded edge of the frame 112 and the mating surface 132 are flush in a plane parallel to the light-emitting surface 111. One side of the adhesive layer 140 is adhered and fixed to the touch screen 120, and the other side of the adhesive layer 140 is adhered and fixed to both the folded edge of the mating surface 132 and the frame 112. The adhesive layer 140 can adhere and fix the display module 110, the touch screen 120, and the housing 130, which helps to improve the bonding strength and further improves the sealing protection of the display module 110. The frame 112 can also position the light-transmitting conductive base layer 121, reducing the processing difficulty.

[0067] See Figure 3The dimension of the light-transmitting conductive substrate 121 in the direction perpendicular to the light-emitting surface 111 is larger than the dimension of the adhesive layer 140 in the direction perpendicular to the light-emitting surface 111. For example, in some embodiments, the light-transmitting conductive substrate 121 is at least partially located inside the cavity 131, which is beneficial for reducing the size of the resistive touch display device 100.

[0068] See Figure 3 The touchscreen 120 also includes a cable 125, which connects to the light-transmitting conductive substrate 121 and extends into the cavity 131. The cable 125 can be used to transmit electrical signals from the light-transmitting conductive substrate 121 to acquire control information input by the user via touch. Specifically, in some embodiments, the light-transmitting conductive substrate 121 includes an interface, and the cable 125 can be connected to the interface, for example, the cable 125 is attached to the surface of the light-transmitting conductive substrate 121 and electrically connected to the interface. See also... Figure 3 In some embodiments, the cable 125 protrudes from the surface of the light-transmitting conductive base layer 121. For example, the thickness of the cable 125 itself or the thickness of its outer sheath protrudes from the upper surface of the light-transmitting conductive base layer 121. The insulating layer 123 may have a notch to accommodate the portion of the cable 125 protruding from the upper surface of the light-transmitting conductive base layer 121, reducing the risk of bulging of the touch screen 120 at the corresponding position of the cable 125. According to a preferred embodiment of the present invention, after the insulating layer 123 is formed, a portion of the structure of the insulating layer 123 can be removed to form a notch, or the insulating layer 123 can be formed in two layers. Specifically, in some embodiments, the insulating layer 123 is printed on one side of the light-transmitting conductive film 122. The insulating layer 123 is formed by two printing processes, the first printing forming... Figure 3 The middle insulating layer 123, near the top, completely corresponds to the extension 1222 of the light-transmitting conductive film 122. Formed by a second printing. Figure 3 The middle isolation layer 123, which is the layer closest to the bottom, has a gap reserved for the cable 125 during the second printing.

[0069] The adhesive layer 140 seals the connection point between the light-transmitting conductive base layer 121 and the cable 125. The adhesive layer 140 provides waterproof protection for the cable 125 and the electrical connection point, eliminating the need for an additional waterproofing layer, simplifying the structure of the resistive touch display device 100, and improving the waterproof sealing effect.

[0070] In some embodiments, a support structure (not shown) is provided inside the cavity 131, which abuts against the side of the light-transmitting conductive base layer 121 away from the light-transmitting conductive film 122. When the user operates the resistive touch display device 100, the support structure can restrict the position of the light-transmitting conductive base layer 121, prevent large deformation, protect the display module 110, and reduce the risk of delamination. The touch screen 120 overlaps and is fixedly attached to the bonding surface 132 at the extension 1222 in the light-transmitting conductive film 122. The support structure can limit the distance the touch screen 120 moves toward the light-emitting surface 111, reducing the risk of separation between the light-transmitting conductive film 122 and the light-transmitting conductive base layer 121 or excessive deformation of the touch screen 120 exceeding the elastic deformation range.

[0071] According to some embodiments of the present invention, the light-transmitting conductive base layer 121 extends to the outside of the cavity 131, and the side of the portion of the light-transmitting conductive base layer 121 outside the cavity 131 is bonded and fixed to the light-transmitting conductive film 122, which is beneficial to improve the bonding strength between the light-transmitting conductive base layer 121 and the light-transmitting conductive film 122 and reduce the risk of delamination or sealing failure.

[0072] For details, see Figure 4 The side of the portion of the light-transmitting conductive base layer 121 located outside the cavity 131 can be bonded and fixed to the light-transmitting conductive film 122 using an adhesive block 141, preferably a reinforcing adhesive. Optionally, the adhesive block 141 can be bonded and fixed to the side of the portion of the light-transmitting conductive base layer 121 located outside the cavity 131, and to the isolation layer 123 of the light-transmitting conductive film 122 near the light-transmitting conductive base layer 121. In this embodiment, when the user operates the resistive touch display device 100, the adhesive block 141 can improve the bonding strength between the light-transmitting conductive base layer 121 and the light-transmitting conductive film 122, ensuring a stable connection between them. This prevents large deformation between the light-transmitting conductive base layer 121 and the light-transmitting conductive film 122 when the user operates the touch screen 120, which could cause breakage due to excessive stress at the bonding point, affecting the sealing effect of the cavity 131. This embodiment helps reduce the risk of delamination or stress damage.

[0073] See Figure 2According to a preferred embodiment of the present invention, the extension 1222 further includes a light-transmitting area 1223. At the location corresponding to the light-transmitting area 1223, the isolation layer 123 is empty. In some embodiments, the resistive touch display device 100 can also integrate an image acquisition device or a light signal indicator device, such as an RGB camera, a depth camera, an indicator light, etc., which can expand the functionality of the resistive touch display device 100 and improve the user experience. The image acquisition device or light signal indicator device can be disposed on the side of the touchscreen 120 facing the cavity 131. At the location of the light-transmitting area 1223, the isolation layer 123 is empty, allowing light to pass through relative to the external environment. In some embodiments, the light-transmitting area 1223 can be formed by perforation or by intermittent printing during the formation of the isolation layer 123.

[0074] See Figure 2 In some embodiments, the touchscreen 120 forms the front surface of the resistive touch display device 100. No covering layer is provided on the side of the touchscreen 120 away from the display module 110, allowing direct operation by the user. The resistive touch display device 100 can be protected by the extension 122. Furthermore, waterproofing and dustproofing can be achieved through the adhesive layer 140. This simplifies the structure of the resistive touch display device 100, reduces production costs, and improves display effects and the user's touch experience.

[0075] See Figure 3 The circumferential edge of the touchscreen 120 is flush with the circumferential edge of the resistive touch display device 100. This simplifies the structure of the resistive touch display device 100 and also helps to reduce its size, eliminating the need for a bezel protruding from the touchscreen 120 and improving the visual effect of the resistive touch display device 100.

[0076] See Figure 5 According to a preferred embodiment of the present invention, the housing 130 further includes a sidewall 133. The sidewall 133 surrounds the circumference of the touchscreen 120, and the sidewall 133 is flush with the height of the touchscreen 120. Alternatively, in some embodiments, the sidewall 133 protrudes from the touchscreen 120, and the height of the sidewall 133 is slightly higher than the height of the touchscreen 120. In this embodiment, the sidewall 133 can protect the sides of the resistive touch display device 100, which is beneficial to further improve waterproof performance and reduce the impact of external factors on the internal components of the resistive touch display device 100.

[0077] Embodiments of this utility model also include an electronic device, including the resistive touch display device 100 as described in the foregoing embodiments. For example, the electronic device may be an industrial processing equipment, and the resistive touch display device 100 may be integrated on the surface of the industrial processing equipment as a control panel. Alternatively, in some embodiments, the electronic device includes multiple systems distributed separately, and the resistive touch display device 100 may be an independently configured device that displays the operating status of the electronic device via wired or wireless connection, receives user input commands, and controls the operation of the electronic device.

[0078] Finally, it should be noted that the above descriptions are merely embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A resistive touch display device, characterized in that, include: The display module has a light-emitting surface on one side, which is configured to emit a light beam; and A touch screen is disposed in the display module on the side near the light-emitting surface, and the touch screen includes a light-transmitting conductive substrate and a light-transmitting conductive film; The light-transmitting conductive substrate is disposed between the light-emitting surface and the light-transmitting conductive film; The size of the light-transmitting conductive film is larger than the size of the light-transmitting conductive base layer, and the light-transmitting conductive film completely covers the side of the light-transmitting conductive base layer away from the light-emitting surface; the light-transmitting conductive film includes a pressing portion and an extension portion, the pressing portion is aligned with the light-transmitting conductive base layer, and is electrically connected to the light-transmitting conductive base layer after being pressed; the extension portion surrounds the circumference of the pressing portion.

2. The resistive touch display device according to claim 1, characterized in that, The touchscreen also includes: An isolation layer is disposed on the side of the light-transmitting conductive film facing the light-transmitting conductive base layer and at least partially corresponds to the extension portion; the isolation layer is opaque.

3. The resistive touch display device according to claim 2, characterized in that, The isolation layer is located circumferentially on the light-transmitting conductive base layer, and the isolation layer partially overlaps with the light-transmitting conductive base layer.

4. The resistive touch display device according to claim 1, characterized in that, The resistive touch display device further includes: A housing having a cavity with a circumferential mating surface, the display module being disposed within the cavity; and An adhesive layer is disposed at the mating surface in the circumferential direction of the cavity and is adhered and fixed to the touch screen; The extension corresponds to the position of the mating surface, and the extension closes the cavity at the position of the mating surface.

5. The resistive touch display device according to claim 4, characterized in that, The mating surface includes a folded edge extending outward from the cavity. The touch screen is bonded and fixed to the folded edge by the adhesive layer, and the edge of the touch screen is aligned with the edge of the folded edge.

6. The resistive touch display device according to claim 5, characterized in that, The display module includes a frame, which is flush with the folded edge in a plane parallel to the light-emitting surface; one side of the adhesive layer is adhered and fixed to the touch screen, and the other side of the adhesive layer is adhered and fixed to both the folded edge and the frame.

7. The resistive touch display device according to claim 4, characterized in that, The dimension of the light-transmitting conductive substrate in the direction perpendicular to the light-emitting surface is larger than the dimension of the adhesive layer in the direction perpendicular to the light-emitting surface; the touch screen also includes a cable, which is connected to the light-transmitting conductive substrate and extends into the cavity; the adhesive layer seals the connection position between the light-transmitting conductive substrate and the cable.

8. The resistive touch display device according to claim 4, characterized in that, The light-transparent conductive substrate is located at least partially within the cavity, and a support structure is provided within the cavity. The support structure abuts against the side of the light-transparent conductive substrate away from the light-transparent conductive film.

9. The resistive touch display device according to claim 8, characterized in that, The light-transmitting conductive base layer extends outside the cavity, and the side of the portion of the light-transmitting conductive base layer outside the cavity is adhered and fixed to the light-transmitting conductive film.

10. The resistive touch display device according to claim 2 or 3, characterized in that, The extension also includes a light-transmitting area, where the isolation layer is missing at the location corresponding to the light-transmitting area.

11. The resistive touch display device according to any one of claims 1-9, characterized in that, The touchscreen forms the front surface of the resistive touch display device, and no cover layer is provided on the side of the touchscreen away from the display module; the circumferential edge of the touchscreen is flush with the circumferential edge of the resistive touch display device.

12. The resistive touch display device according to any one of claims 4-9, characterized in that, The housing includes a sidewall that surrounds the circumference of the touchscreen and is flush with the height of the touchscreen, or the sidewall protrudes from the touchscreen.

13. The resistive touch display device according to any one of claims 1-9, characterized in that, The size of the light-transmitting conductive substrate is approximately equal to the size of the light-emitting surface, and the light-transmitting conductive substrate completely covers the light-emitting surface; the width of the extension is no more than 30mm.

14. An electronic device, characterized in that, Including the resistive touch display device as described in any one of claims 1-13.

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