Touch panel and device and display equipment

Abstract

The invention discloses a touch panel and device and display equipment, and the touch panel comprises a first conductive layer, a transition layer and a second conductive layer which are sequentially stacked in the preset direction; the transition layer comprises an elastic part and a conductive part, the elastic part is made of an insulating material, the elastic part is supported between the first conductive layer and the second conductive layer, and the conductive part is arranged on the elastic part; at a non-pressure point, the elastic part isolates at least two of the first conductive layer, the conductive part and the second conductive layer; and at the pressure point, the elastic part is pressed to deform, the conductive part is pressed to change the position, and the first conductive layer and the second conductive layer are electrically connected. The touch panel, the touch device and the display equipment have the effect of preventing the first conductive layer and the first base layer connected with the first conductive layer from bulging, collapsing and other deformation.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of touch technology, and in particular to a touch panel, a device and a display apparatus. Background Art

[0002] The touch control part of the resistive screen is a multi-layer composite film, which includes two substrate layers spaced apart from each other, two conductive layers spaced apart from each other between the two substrate layers, and insulating particles spaced apart between the two conductive layers.

[0003] When the resistive screen is subjected to pressure, a contact point will appear between the two conductive layers where the pressure acts. Since one of the conductive layers is connected to the 5V uniform voltage field in the Y-axis direction, the controller can detect the voltage connected to the contact point in the Y-axis direction and perform A / D conversion. Then, the obtained voltage value is compared with 5V to obtain the Y-axis coordinate of the contact point. Similarly, the X-axis coordinate can be obtained; where the X-axis is along the width of the resistive screen and the Y-axis is along the length of the resistive screen. After calculating the (X, Y) coordinates of the contact point, the controller operates in the manner of a simulated mouse to complete the signal input.

[0004] However, when the size of the resistive screen is large, the upper conductive layer and the upper substrate layer are easily deformed, resulting in product failure. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a touch panel, a device and a display apparatus, which can solve the problem that the upper conductive layer is very easy to deform, resulting in product failure.

[0006] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides a touch panel, comprising a first conductive layer, a transition layer and a second conductive layer stacked in sequence along a preset direction; the transition layer comprises an elastic portion and a conductive portion, the elastic portion is made of an insulating material, and the elastic portion is supported between the first conductive layer and the second conductive layer, and the conductive portion is arranged on the elastic portion; at a non-pressure point, the elastic portion isolates at least two of the first conductive layer, the conductive portion and the second conductive layer; at a pressure point, the elastic portion is compressed and deformed, the conductive portion is compressed and changes position and electrically connects the first conductive layer with the second conductive layer.

[0007] To achieve the above-mentioned purpose, another aspect of the embodiment of the present application further provides a transition layer, including an elastic part and a conductive part, the elastic part is made of an insulating material, and the conductive part is arranged on the elastic part; the transition layer is used for a resistive touch screen, and the elastic part is supported between a first conductive layer and a second conductive layer of the touch panel; at a non-pressure point, the elastic part isolates at least two of the first conductive layer, the conductive part and the second conductive layer; at a pressure point, the elastic part is deformed, the position of the conductive part changes and the first conductive layer is electrically connected to the second conductive layer.

[0008] To achieve the above objective, another aspect of an embodiment of the present application further provides a touch device, comprising a first substrate and the touch panel as described above, wherein the first substrate covers one side of the touch panel in a preset direction and protects the touch panel.

[0009] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application further provides a touch display device, including a controller, a display and the touch device as described above, wherein the touch device is electrically connected to the input end of the controller, the display is electrically connected to the output end of the controller, and the controller controls the display to display an image according to data input by the touch device.

[0010] In summary, the touch panel, device and display device provided by the embodiments of the present application, by setting a transition layer between the first conductive part and the second conductive part, and by supporting the elastic part of the transition layer between the first conductive layer and the second conductive layer, the elastic force and supporting force of the elastic part are utilized to assist the first conductive layer to recover from a deformed shape to a flat shape, thereby avoiding deformation such as bulging and collapse of the first conductive layer and the first base layer connected to the first conductive layer. In addition, by setting the conductive part of the transition layer on the elastic part, and at the non-pressure point, the elastic part isolates at least two of the first conductive layer, the conductive part and the second conductive layer to achieve an insulation effect; at the pressure point, the elastic part is deformed by pressure, and the conductive part is changed by pressure, and the conductive part after changing position can electrically connect the first conductive layer with the second conductive layer, so as to increase the sensitivity of the touch panel to the user's touch, which is convenient for the user to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A schematic diagram of a resistive screen of the related art;

[0013] Figure 2 for Figure 1 The state diagram of the resistive screen when it is bulging is shown;

[0014] Figure 3 for Figure 1 The state diagram of the resistive screen when it collapses is shown;

[0015] Figure 4 A schematic diagram of a touch control device provided in an embodiment of the present application;

[0016] Figure 5 for Figure 4 A schematic diagram of a touch panel is shown;

[0017] Figure 6 A schematic diagram of a second touch panel provided in an embodiment of the present application;

[0018] Figure 7 A schematic diagram of a third touch panel provided in an embodiment of the present application;

[0019] Figure 8 A schematic diagram of a fourth touch panel provided in an embodiment of the present application;

[0020] Fig. 9 A schematic diagram of a fifth touch panel provided in an embodiment of the present application;

[0021] Fig.10 for Fig. 9 A schematic diagram of the through-hole portion of the elastic portion is shown.

[0022] Description of reference numerals:

[0023] 1000. Touch panel;

[0024] 200, a first conductive layer;

[0025] 300, transition layer; 310, elastic part; 320, conductive part; 330, through hole; 331, large hole part; 332, small hole part; 340, first elastic part; 350, second elastic part; 360, third elastic part; 370, conductive unit;

[0026] 400, a second conductive layer;

[0027] 2000, resistive screen; 2100, substrate layer; 2200, conductive layer; 2300, insulating particles; 2400, adhesive layer; 2500, air insulation layer;

[0028] 3100, non-pressure point; 3200, pressure point.

[0029] 4000, first grassroots level;

[0030] 5000, the second grassroots level. DETAILED DESCRIPTION

[0031] As described in the background art, in the related art, the upper conductive layer and the upper substrate layer of the larger resistive screen are easily deformed, resulting in product failure. The details are as follows:

[0032] Figure 1 Schematic diagram of a resistive screen in the related art. Figure 1 , the related resistive screen 2000 includes two upper and lower substrate layers 2100, two upper and lower conductive layers 2200 and a plurality of insulating particles 2300. Among them, the upper and lower substrate layers 2100 sandwich the upper and lower conductive layers 2200, and the plurality of insulating particles 2300 are arranged in the space formed by the upper and lower conductive layers 2200. At the non-pressure point, the upper and lower conductive layers 2200 are arranged at intervals and form an air insulation layer 2500. At the pressure point, the upper substrate layer 2100 and the upper conductive layer 2200 located between two adjacent insulating particles 2300 are depressed downward due to pressure, and the air is squeezed toward the non-pressure point. When the depressed upper conductive layer 2200 contacts the lower conductive layer 2200, the two are electrically connected.

[0033] It should be noted that the above-mentioned air insulation layer 2500 is realized by the adhesive layer 2400 disposed at the end. The adhesive layer 2400 has a greater restraining force on the end area of ​​the upper conductive layer 2200, and a smaller restraining force on the middle area of ​​the upper conductive layer 2200. When the size of the resistive screen 2000 is large, the middle area of ​​the upper conductive layer 2200 is far away from the adhesive layer 2400, resulting in the middle area of ​​the upper conductive layer 2200 and the middle area of ​​the upper substrate layer 2100 being easily separated from the restraining force of the adhesive layer 2400, and the following occurs: Figure 2 The bulge deformation shown or Figure 3 Collapse deformation shown.

[0034] In view of the above technical problems, an embodiment of the present application provides a touch panel, which supports an elastic part between the first conductive layer and the second conductive layer, so as to utilize the elastic force and supporting force of the elastic part to assist the deformation and recovery of the first conductive layer when the upper conductive layer is pressed and released, thereby avoiding deformation such as bulging and collapse of the first conductive layer and the first base layer connected to the first conductive layer. In addition, in order to achieve conductivity at the pressure point, the elastic part may be connected to a conductive part. At the non-pressure point, the elastic part isolates at least two of the first conductive layer, the conductive part and the second conductive layer to achieve an insulating effect; at the pressure point, the elastic part is deformed by pressure, and the conductive part is changed by pressure, and the conductive part after changing position can electrically connect the first conductive layer with the second conductive layer, so as to increase the sensitivity of the touch panel to the user's touch, which is convenient for the user to use.

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0036] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] Figure 4 A schematic diagram of a touch control device provided in an embodiment of the present application. Figure 4 The touch device provided in the embodiment of the present application may include a touch panel 1000. To protect the touch panel 1000, the touch panel 1000 is Figure 4 The first substrate 4000 for the user to touch may be provided on one side (in the up and down direction shown). That is, the surface of the first substrate 4000 facing away from the touch panel 1000 may serve as the external operation surface of the touch device. When the user touches the operation surface, the user's touch force on the first substrate 4000 may be transmitted to the touch panel 1000, and the touch panel 1000 may respond to the user's touch position. The first substrate 100 may be flexible so that it can be deformed when touched by the user. The first base layer 100 may be a plate or a film, and the material of the first base layer 100 may be: polycarbonate (PC), polymethyl methacrylate (PMMA), polyether sulfone (PES), cellulose ester, polyvinyl chloride (PVC), benzocyclobutene (BCB), acrylic resin, acrylonitrile-butadiene-styrene copolymer (ABS), polyethylene terephthalate (PET), polycarbonate / acrylonitrile-butadiene-styrene copolymer blend (PC / ABS), polycarbonate / polybutylene terephthalate blend (PC / PBT), polycarbonate / polyethylene terephthalate blend (PC / PET), polycarbonate / polymethyl methacrylate blend (PC / PMMA) or polyamide (PA) and other materials with a certain flexibility so as to bend under force and protect the touch panel 1000.

[0038] Continue to refer Figure 4Optionally, in order to protect the touch panel 1000 from one side of the first base layer 1000, the touch device may further include a second base layer 5000. The touch panel 1000 may be arranged between the first base layer 4000 and the second base layer 5000. That is to say, the first base layer 4000 and the second base layer 5000 respectively cover the two sides of the touch panel 1000 along the preset direction. The surface of the second base layer 5000 facing away from the touch panel 1000 can be used as the external connection surface of the touch device. The external connection surface of the touch device can be connected to the surface of the object by adhesive fixation. In addition, the material of the second base layer 5000 can be made of materials with a certain hardness such as glass, quartz, diamond, printed circuit board (PWB board), plastic, etc.

[0039] Figure 5 for Figure 4 A schematic diagram of a touch panel is shown. Figure 5 The touch panel 1000 may include a touch screen along a preset direction (such as Figure 5 A first conductive layer 200, a transition layer 300 and a second conductive layer 400 are sequentially stacked (in the up and down direction shown).

[0040] Among them, the first conductive layer 200 can be formed by vacuum evaporation, sputtering, chemical vapor deposition, ion plating, spraying and other methods, and a suitable film forming method can be selected according to the requirements for film thickness. Similarly, the second conductive layer 400 can also be formed by the film forming methods mentioned above. In addition, both the first conductive layer 200 and the second conductive layer 400 can be formed by conductive materials such as In2O3, TiO2, SnO2, and ZnO2.

[0041] The transition layer 300 may include an elastic portion 310, which may be made of an insulating material with a certain elasticity, such as gel, sponge, rubber, elastic plastic, etc. The elastic portion 310 may be supported between the first conductive layer 200 and the second conductive layer 400 to prevent the first conductive layer 200 and the first base layer 100 from deforming, such as bulging or collapse.

[0042] Specifically, refer to Figure 4 and Figure 5 , when the touch panel 1000 is not subjected to force (such as Figure 4 The elastic part 310 can separate and space the first conductive layer 200 and the second conductive layer 400, and utilize the insulation of the elastic part 310 to prevent electric charge from flowing between the first conductive layer 200 and the second conductive layer 400.

[0043] When a certain position of the touch panel 1000 is subjected to force (such as Figure 4The first conductive layer 200 at this position is deformed to be recessed toward the second conductive part 320, and the elastic part 310 between the first conductive layer 200 and the second conductive layer 400 is deformed to be recessed toward the second conductive part 320. When the external force at this position disappears, the first conductive layer 200 and the first base layer 100 will restore their original positions due to the elastic force of the elastic part 310. In this way, the elastic part 310 can assist the first conductive layer 200 to restore from a deformed shape to a flat shape, so as to prevent the first conductive layer 200 from deforming, such as bulging or collapse.

[0044] Optionally, the elastic part 310 and the first conductive layer 200 may be fixed by adhesive, so that the elastic part 310 can be attached to the first conductive layer 200, so as to provide support for the first conductive layer 200, so as to further avoid the occurrence of bulging, collapse, etc. Further, the surface of the elastic part 310 close to the first conductive layer 200 in the preset direction can be fully attached to the surface of the first conductive layer 200. And / or, the elastic part 310 and the second conductive layer 400 may be fixed by adhesive, so that the elastic part 310 can be attached to the second conductive layer 400, so as to provide support for the second conductive layer 200. Further, the surface of the elastic part 310 close to the second conductive layer 400 in the preset direction can be fully attached to the surface of the second conductive layer 400.

[0045] Exemplarily, the elastic part 310 may have stickiness. For example, the elastic part 310 may be formed by curing glue into a film. The glue may be made of a material such as a pressure-sensitive adhesive that has a certain elasticity after film formation. Alternatively, the elastic part 310 may not have stickiness. The elastic part 310 may be fixed to the first conductive layer 200 and the second conductive layer 400 through a conductive adhesive layer (conductive glue).

[0046] It should be noted that when the first conductive layer 200 of the touch panel 1000 is deformed under pressure so that the first conductive layer 200 contacts the second conductive layer 400, the coordinates of the contact point can be determined based on the voltage change. Specifically, the first conductive layer 200 and the second conductive layer 400 can be equivalent to a resistor network. If one of the first conductive layer 200 and the second conductive layer 400 can be connected to a voltage, a voltage gradient will be formed on the resistor network of the conductive layer. If an external force causes the first conductive layer 200 and the second conductive layer 400 to contact at a certain point, the conductive layer that is not connected to the voltage can measure the voltage at the contact point, thereby knowing the coordinates at the contact point.

[0047] For example, when the electrodes (X+, X-) of the first conductive layer 200 are connected to a voltage, a voltage gradient is formed in the first conductive layer 200. When an external force causes the first conductive layer 200 to contact the second conductive layer 400 at a certain point, the voltage at the contact point can be measured in the second conductive layer 400. Then, based on the distance relationship between the voltage and the electrode (X+), the X coordinate of the point can be obtained. Then, when the electrodes (Y+, Y-) of the second conductive layer 400 are connected to a voltage, the voltage at the contact point is measured in the first conductive layer 200, and the Y coordinate of the point can be obtained based on the distance relationship between the voltage and the electrode (Y+).

[0048] As mentioned above, the elastic part 310 is insulating, and the user needs to apply a large pressure to make the first conductive layer 200 deformed at the pressure point 3200 pass through the elastic part 310 and contact and electrically connect with the second conductive layer 400. Figure 4 and Figure 5 , the transition layer 300 provided in the embodiment of the present application may further include a conductive portion 320 disposed on the elastic portion 310. At the non-pressure point 3100, the elastic portion 310 may isolate at least two of the first conductive layer 200, the conductive portion 320, and the second conductive layer 400 to achieve an insulation effect. At the pressure point 3200, the elastic portion 310 is compressed and deformed, and the conductive portion 320 is compressed and changes position, and the conductive portion 320 after the position change can electrically connect the first conductive layer 200 with the second conductive layer 400. In this way, the conductive portion 320 can be used to increase the sensitivity of the touch panel 1000 to the user's touch, which has the advantage of being convenient for users to use.

[0049] The first base layer 100 may have a plurality of touch areas for users to touch, and these touch areas are evenly distributed on the plane of the first base layer 100. In order to allow the user to apply the same pressure on each touch area to electrically connect the first conductive layer 200 with the second conductive layer 400, optionally, there may be a plurality of conductive parts 320, and the plurality of conductive parts 320 may be evenly distributed on the elastic part 310 in a direction parallel to the plane of the first conductive layer 200. The plane of the first conductive layer 200 is parallel to the plane of the first base layer 100.

[0050] The conductive part 320 and the elastic part 310 may be connected in the following ways:

[0051] In one possible connection method between the conductive part 320 and the elastic part 310 , the conductive part 320 is doped into the elastic part 310 , and the isolation and conduction between the first conductive layer 200 and the second conductive layer 400 are achieved by changing the doping concentration of the conductive part 320 .

[0052] refer to Figure 4 and Figure 5, multiple conductive parts 320 may be doped in the elastic part 310. At the non-pressure point 3100, the doping concentration of the conductive part 320 may be lower than the conduction concentration value. And at least part of the elastic part 310 may separate two adjacent conductive parts 320; and / or, at least part of the elastic part 310 may separate the conductive part 320 from the first conductive layer 200; and / or, at least part of the elastic part 310 may separate the conductive part 320 from the second conductive layer 400. In other words, at least one of the two adjacent conductive parts 320, the conductive part 320 and the first conductive layer 200, and the conductive part 320 and the second conductive layer 400 may be separated by at least part of the elastic part 310.

[0053] Combination Figure 4 and Figure 5 At the pressure point 3200, the elastic part 310 will be compressed and deformed, and the volume of the elastic part 310 will be reduced, so that the doping concentration of the conductive part 320 is not lower than the conduction concentration value, and at least a part of the conductive parts 320 can be in contact and electrically connected between the first conductive layer 200 and the second conductive layer 400. In other words, there are a part of the conductive parts 320 at the pressure point 3200, and these conductive parts 320 can be in contact and electrically connected with each other, and one end of these conductive parts 320 can be in contact and electrically connected with the first conductive layer 200, and the other end of these conductive parts 320 can be in contact and electrically connected with the second conductive layer 400.

[0054] Optionally, the conductive part 320 may be conductive particles or conductive wires formed of a conductive material. Optionally, the elastic part 310 may be made of a material with a large distance between molecules (such as a gel, etc.).

[0055] refer to Figure 5 , an exemplary embodiment, in a preset direction (such as Figure 5 In the vertical direction shown in FIG. 1 , a plurality of conductive parts 320 are uniformly doped in the elastic part 310. That is, the elastic part 310 is evenly divided into multiple layers in a preset direction, and the concentration of the conductive parts 320 in each layer of the elastic part 310 is equal. In this way, it is easy to process.

[0056] refer to Figure 6 and Figure 7 As another example, in a preset direction, the doping concentration of the conductive portion 320 varies in layers so as to adjust the sensitivity of the touch panel 1000 to the user's touch.

[0057] In order to achieve a layered effect, the transition layer 300 may optionally include multiple layers of elastic parts 310 stacked together, and at least one layer of the elastic part 310 may be doped with at least a portion of the conductive part 320. For example, Figure 6In the embodiment, the transition layer 300 includes a first elastic portion 340 and a second elastic portion 350, and both the first elastic portion 340 and the second elastic portion 350 may be doped with a conductive portion 320. The doping concentration of the conductive portion 320 of the first elastic portion 340 close to the first conductive layer 200 is lower than the doping concentration of the conductive portion 320 of the second elastic portion 350 close to the second conductive layer 400, so as to increase the sensitivity of the touch panel 1000 to the user's touch. Figure 7 In the embodiment, the transition layer 300 includes a first elastic portion 340, a second elastic portion 350 and a third elastic portion 360, and the three elastic portions 310 may be doped with a conductive portion 320. The doping concentration of the conductive portion 320 of the first elastic portion 340 close to the first conductive layer 200 and the third elastic portion 360 close to the second conductive layer 400 is greater than the doping concentration of the conductive portion 320 of the third elastic portion 360 located between the first elastic portion 340 and the second elastic portion 350, so that the doping concentration of the conductive portion 320 near the conductive layer is increased, thereby facilitating the improvement of the sensitivity of the touch panel 1000 to the user's touch.

[0058] In another possible connection method between the conductive part 320 and the elastic part 310 , the conductive part 320 is used to penetrate the elastic part 310 , and the insulation and conduction between the first conductive layer 200 and the second conductive layer 400 are achieved by changing the distance.

[0059] refer to Figure 8 and Fig. 9 The conductive portion 320 may be disposed on the elastic portion 311 along a preset direction (eg Figure 8 and Fig. 9 Furthermore, the first conductive layer 200 is electrically connected to one of the second conductive layers 400 and the first end of the conductive portion 320.

[0060] At the non-pressure point 3100 , there is a gap between the first conductive layer 200 and the other of the second conductive layer 400 and the second end of the conductive part 320 ; at the pressure point 3200 , the conductive part 320 passes through the elastic part 310 and is connected between the first conductive layer 200 and the second conductive layer 400 .

[0061] For example: Figure 8 In the embodiment, the top end of the conductive part 320 located in the upper layer and the bottom end of the conductive part 320 located in the lower layer may constitute the first end of the entire conductive part 320. The top end of the conductive part 320 located in the upper layer may be in contact and electrically connected with the first conductive layer 200, and the conductive part 320 located in the lower layer may be in contact and electrically connected with the second conductive layer 400.

[0062] At the non-pressure point 3100, the conductive part 320 located at the upper layer and the conductive part 320 located at the lower layer are isolated on both sides of the elastic part 310. In other words, at the non-pressure point 3100, the bottom end of the conductive part 320 located at the upper layer and the top end of the conductive part 320 located at the lower layer can constitute the second end of the entire conductive part 320, and there is a gap between the bottom end of the conductive part 320 located at the upper layer and the second conductive layer 400, and there is a gap between the top end of the conductive part 320 located at the lower layer and the first conductive layer 200, and the bottom end of the conductive part 320 located at the upper layer and the top end of the conductive part 320 located at the lower layer sandwich the elastic part 310.

[0063] At the pressure point 3200 , the conductive part 320 located on the upper layer and the conductive part 320 located on the lower layer can pass through the elastic part 310 and make contact and electrically connect, so that the first conductive layer 200 and the second conductive layer 400 are electrically connected through the conductive part 320 located on the upper layer and the conductive part 320 located on the lower layer.

[0064] For another example, Fig. 9 In the embodiment, the top of the conductive part 320 is electrically connected to the first conductive layer 200, and the conductive part 320 is disposed through the top of the elastic part 310. At the non-pressure point 3100, there is a gap between the bottom of the conductive part 320 and the second conductive layer 400; at the pressure point 3200, the conductive part 320 penetrates the elastic part 310 and is in contact and electrically connected with the second conductive layer 400.

[0065] In order to allow the conductive portion 320 to quickly penetrate the elastic portion 310 when under pressure and increase the sensitivity of the touch panel 1000 to user touch, the end of the conductive portion 320 that is away from the conductive layer is optionally pointed. Figure 8 The bottom end (the end away from the first conductive layer 200) of the middle upper conductive part 320 is pointed, and the top end (the end away from the second conductive layer) of the lower conductive part 320 is pointed. Fig. 9 One end of the middle conductive portion 320 away from the first conductive layer 200 is pointed.

[0066] In addition, refer to Fig. 9 Optionally, at the non-pressure point 3100, at least a portion of the conductive portion 320 may be inserted through a portion of the elastic portion 310, so that the conductive portion 320 may quickly penetrate the elastic portion 310 when under pressure, thereby increasing the sensitivity of the touch panel 1000 to user touch.

[0067] In addition, the elastic portion 310 may be provided with a through hole 330 for the conductive portion 320 to pass through, so that the conductive portion 320 can quickly pass through the elastic portion 310 through the through hole 330 when under pressure, thereby increasing the sensitivity of the touch panel 1000 to user touch.

[0068] Furthermore, Fig.10 for Fig. 9A schematic diagram of a through-hole portion of an elastic portion is shown. Fig. 9 and Fig.10 The through hole 330 may include a large hole portion 331 and a small hole portion 332 that are connected. The inner wall of the large hole portion 331 may be farther away from the axis of the through hole 330 than the inner wall of the small hole portion 332. In addition, the second end of the conductive portion 320 may be pointed.

[0069] At the non-pressure point 3100, the connection between the large hole portion 331 and the small hole portion 332 can support the second end of the conductive portion 320 (such as Fig. 9 The bottom end of the conductive portion 320 shown in the figure) is used to share the downward pulling force of the conductive portion 320 on the first conductive layer 200, and also isolate the conductive portion 320 from the conductive layer (such as Fig. 9 The connection between the large hole portion 331 and the small hole portion 332 isolates the bottom end of the conductive part 320 from the second conductive layer 400 . At the pressure point 3200 , the conductive part 320 can pass through the small hole portion 332 and connect the first conductive layer 200 and the second conductive layer 400 .

[0070] It should be noted that Fig. 9 In the figure, the conductive part 320 is arranged on one side of the elastic part 310 as an example. Of course, the conductive part 320 can also be arranged on both sides of the elastic part 310. In this case, the through hole 330 can include two large hole parts 331 and two small hole parts 332, and they are connected in sequence in the order of large hole part 331, small hole part 332, small hole part 332 and large hole part 331.

[0071] refer to Figure 8 Optionally, the elastic portion 310 may be doped with a plurality of conductive units 370 to improve the sensitivity of the touch panel 1000 to user touch.

[0072] It should be noted that Figure 8 and Fig. 9 This is just an example, and it does not mean that the possible situations based on the connection method of the second conductive part 320 and the elastic part 310 are limited to this. Those skilled in the art can combine different states of the characteristics of the connection method of the second conductive part 320 and the elastic part 310 mentioned above to obtain a new structure of the touch panel 1000. For example, Figure 8 The conductive part 320 disposed on both sides of the elastic part 310 is changed to be disposed on only one side; and / or, Figure 8 The middle elastic portion 310 is not doped with the conductive unit 370; and / or, Fig. 9 The single-side conductive portion 320 is changed to a double-side conductive portion 320; and / or, Fig. 9 The middle through hole 330 is changed into a blind hole, etc., which will not be described in detail here.

[0073] In another possible connection method of the conductive part 320 and the elastic part 310, the above two connection methods are combined with each other. For example, the two methods can be arranged in sequence along a preset direction.

[0074] Optionally, the transition layer 300 and the first conductive layer 200 may be bonded to each other, so as to utilize the adhesive force to improve the restraint force of the transition layer 300 on the first conductive layer 200, thereby preventing the first conductive layer 200 from being separated from the transition layer 300. In addition, the transition layer 300 and the second conductive layer 400 may be bonded to each other, so as to utilize the adhesive force to improve the restraint force of the second conductive layer 400 on the transition layer 300, thereby preventing the transition layer 300 from being separated from the second conductive layer 400.

[0075] It should be noted that the touch device provided in the embodiment of the present application can identify the user's touch operations such as clicking and dragging, and can be used as the touch part of an input device. The input device includes but is not limited to an input board, a keyboard, a mouse, a blackboard sub-screen, etc.

[0076] The embodiment of the present application also provides a touch display device, which may include a controller, a display, and a touch device as mentioned above. The touch device may be electrically connected to the input end of the controller, and the display may be electrically connected to the output end of the controller. The controller may control the display to display an image based on the data input by the touch device. Specifically, when the user touches the touch device, the first conductive layer 200 of the touch panel 1000 will be deformed at the pressure point. The controller senses the coordinates of the pressure point, and learns the user's intention based on the content corresponding to the coordinates of the pressure point, and controls the image displayed on the display based on the learned user's intention.

[0077] For example, when the touch display device is a large-size device for viewing by multiple people, the touch device provided by the embodiment of the present application is used, which is not only low-cost, but also does not have restrictions on the conductivity of the touch material like a capacitive screen, and the large-size touch device is not prone to bulging, dents, etc.

[0078] Among them, the terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not used to limit the scope of implementation of the present application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present application without substantially changing the technical content.

[0079] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0080] In addition, in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A touch panel, characterized in that: It includes a first conductive layer, a transition layer and a second conductive layer which are sequentially stacked along a preset direction; The transition layer includes an elastic portion and a conductive portion, the elastic portion is made of an insulating material, and the elastic portion is supported between the first conductive layer and the second conductive layer, and the conductive portion is arranged on the elastic portion; At the non-pressure point, the elastic portion isolates at least two of the first conductive layer, the conductive portion, and the second conductive layer; At the pressure point, the elastic portion is compressed and deformed, and the conductive portion is compressed and changes position to electrically connect the first conductive layer and the second conductive layer.

2. The touch panel according to claim 1, characterized in that: There are a plurality of conductive parts, and the plurality of conductive parts are evenly distributed on the elastic part in a plane direction parallel to the first conductive layer.

3. The touch panel according to claim 2, characterized in that: A plurality of the conductive parts are doped in the elastic part; At the non-pressure point, the doping concentration of the conductive portion is lower than the conduction concentration value; At least one of two adjacent conductive parts, the conductive part and the first conductive layer, and the conductive part and the second conductive layer is separated by at least a portion of the elastic part; At the pressure point, the elastic part is deformed so that the doping concentration of the conductive part is not lower than the conduction concentration value, thereby making at least a part of the conductive parts contact each other, thereby making the first conductive layer and the second conductive layer electrically connected.

4. The touch panel according to claim 3, characterized in that: In the preset direction, a plurality of the conductive parts are uniformly doped in the elastic part.

5. The touch panel according to claim 3, characterized in that: In the preset direction, the doping concentration of the conductive part varies in layers.

6. The touch panel according to claim 5, characterized in that: The transition layer includes a plurality of elastic parts stacked together, and at least one layer of the elastic part is doped with at least a portion of the conductive part.

7. The touch panel according to any one of claims 3 to 6, characterized in that: The conductive part is conductive particles and / or conductive wires; And / or, the elastic portion is a gel.

8. The touch panel according to claim 2, characterized in that: The conductive part is arranged at one end of the elastic part along the preset direction, and the first conductive layer and one of the second conductive layers are in contact with and electrically connected to the first end of the conductive part; At the non-pressure point, a distance is provided between the first conductive layer and the other of the second conductive layers and the second end of the conductive portion; At the pressure point, the conductive portion penetrates the elastic portion and electrically connects the first conductive layer with the second conductive layer.

9. The touch panel according to claim 8, characterized in that: At the non-pressure point, at least a portion of the conductive portion passes through the elastic portion.

10. The touch panel according to claim 9, characterized in that: The elastic portion has a through hole for the conductive portion to pass through.

11. The touch panel according to claim 10, characterized in that: The through hole comprises a large hole portion and a small hole portion which are connected to each other, and the inner wall of the large hole portion is farther away from the axis of the through hole than the inner wall of the small hole portion; The second end of the conductive portion is pointed; At the non-pressure point, the connection between the large hole portion and the small hole portion supports the second end of the conductive portion; At the pressure point, the conductive portion passes through the small hole portion and connects the first conductive layer and the second conductive layer.

12. The touch panel according to claim 8, characterized in that: A plurality of conductive units are doped in the elastic portion.

13. The touch panel according to claim 1 or 2, characterized in that: The transition layer is bonded to the first conductive layer; and / or the transition layer is bonded to the second conductive layer.

14. A transition layer, characterized in that: It comprises an elastic part and a conductive part, wherein the elastic part is made of insulating material and the conductive part is arranged on the elastic part; The transition layer is used for a touch panel, and the elastic part is supported between a first conductive layer and a second conductive layer of the touch panel; At the non-pressure point, the elastic portion isolates at least two of the first conductive layer, the conductive portion, and the second conductive layer; At the pressure point, the elastic portion is deformed, the position of the conductive portion is changed, and the first conductive layer is electrically connected to the second conductive layer.

15. A touch device, characterized in that: It comprises a first base layer and the touch panel as claimed in any one of claims 1 to 13, wherein the first base layer covers one side of the touch panel in a preset direction and protects the touch panel.

16. The touch control device according to claim 15, characterized in that: It also includes a second base layer, and the touch panel is arranged between the first base layer and the second base layer.

17. A touch display device, characterized in that: It comprises a controller, a display and a touch control device as claimed in claim 15 or 16, wherein the touch control device is electrically connected to an input end of the controller, the display is electrically connected to an output end of the controller, and the controller controls the display to display an image according to data input by the touch control device.

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