Touch panel, touch panel driving method and display device

Abstract

The invention discloses a touch panel, a touch panel driving method and a display device, and the touch panel comprises a substrate; the touch layer is arranged on one side of the substrate, and the touch layer comprises a plurality of touch electrodes; and the gesture recognition control unit is electrically connected with at least part of the touch electrodes. The touch control function and the gesture recognition function are integrated, the frame size of the touch control panel is effectively reduced, the thickness of the touch control panel is reduced, the number of needed mask plates is reduced, the technological process is simplified, the manufacturing cost is reduced, and the use performance of the touch control panel is improved.

Description

Technical Field

[0001] The present application belongs to the field of touch technology, and in particular, relates to a touch panel, a touch panel driving method and a display device. Background Art

[0002] In recent years, with the rapid development of artificial intelligence technology, gesture recognition technology has become one of the important research directions in the field of human-computer interaction. Gesture recognition technology can convert human movements into instructions that the device can understand, thereby achieving the purpose of human-computer interaction. At present, gesture recognition technology has been widely used in smart products such as smart cars, smart phones, smart watches, smart TVs, etc., providing users with a more convenient and more natural way of operation.

[0003] Existing gesture control solutions usually add independent gesture control on the basis of conventional touch panels, which is not conducive to the realization of high screen-to-body ratio and narrow borders.

[0004] Therefore, a new touch panel, a touch panel driving method and a display device are urgently needed. Summary of the invention

[0005] The embodiments of the present application provide a touch panel, a touch panel driving method and a display device. The embodiments of the present application integrate touch function and gesture recognition function, effectively reduce the border size of the touch panel, reduce the thickness of the touch panel, save the number of required mask plates, simplify the process flow and reduce the production cost, and improve the performance of the touch panel.

[0006] On one hand, an embodiment of the present application provides a touch panel, including: a substrate; a touch layer, arranged on one side of the substrate, the touch layer including a plurality of touch electrodes; and a gesture recognition control unit, electrically connected to at least some of the touch electrodes.

[0007] According to one aspect of the present application, the touch electrode includes a first touch electrode, the first touch electrode includes a plurality of first electrode blocks arranged along a first direction and electrically connected, the plurality of first touch electrodes are spaced apart along a second direction, at least some of the first touch electrodes are electrically connected to the gesture recognition control unit, and the first direction and the second direction intersect.

[0008] According to one aspect of the present application, the touch electrode also includes a second touch electrode; the second touch electrode includes a plurality of second electrode blocks arranged and electrically connected along the second direction, the plurality of second touch electrodes are spaced apart along the first direction, and the second touch electrode and the first touch electrode are insulated; at least part of the second touch electrodes are electrically connected to the gesture recognition control unit; preferably, the touch panel also includes a touch control unit, and the touch electrode is electrically connected to the touch control unit.

[0009] According to one aspect of the present application, the touch panel also includes a multiplexer, each multiplexer is connected to a plurality of the touch electrodes, and the multiplexer is electrically connected to the gesture recognition control unit; preferably, the multiplexer includes a plurality of first multiplexing units, and along the second direction, the first multiplexing unit is electrically connected to at least two of the first touch electrodes; preferably, the multiplexer includes a plurality of second multiplexing units, and along the first direction, the second multiplexing unit is electrically connected to at least two of the second touch electrodes.

[0010] According to one aspect of the present application, the first touch electrode includes at least two edge first electrodes and an intermediate first electrode arranged between adjacent edge first electrodes along the second direction, and the intermediate first electrode and the edge first electrode are respectively electrically connected to different gesture recognition control units; and / or, the second touch electrode includes at least two edge second electrodes and an intermediate second electrode arranged between adjacent edge second electrodes along the first direction, and the intermediate second electrode and the edge second electrode are respectively electrically connected to different gesture recognition control units.

[0011] According to one aspect of the present application, it also includes a first gesture recognition connection line, a first touch signal line and a second touch signal line; the two ends of the first gesture recognition connection line are respectively connected to the first touch electrode and the multiplexer, and / or, respectively connected to the second touch electrode and the multiplexer; the first touch signal line is respectively connected to the first touch electrode and the touch control unit, and the second touch signal line is respectively connected to the second touch electrode and the touch control unit; preferably, the first gesture recognition connection line, the first touch signal line and the second touch signal line are arranged in the same layer. Preferably, the touch panel also includes a second gesture recognition connection line, the two ends of the second gesture recognition connection line are respectively connected to the gesture recognition control unit and the multiplexer, and part of the second gesture recognition connection line and part of the first touch signal line are respectively arranged on opposite sides of the touch layer along the first direction.

[0012] According to one aspect of the present application, the touch layer includes at least two conductive layers, the first touch electrode and the second touch electrode are arranged in the same layer of the at least two conductive layers, the first gesture recognition connecting line, the first touch signal line, and the second touch signal line are arranged in one of the at least two conductive layers, and are arranged in a different layer from the first touch electrode; preferably, the touch layer also includes a bridge portion, and the bridge portion and the first touch electrode and the second touch electrode are located in different conductive layers, and along the first direction, the bridge portion is electrically connected to adjacent first electrode blocks, or, along the second direction, the bridge portion is electrically connected to adjacent second electrode blocks; preferably, the conductive layer has a metal grid structure; preferably, the conductive layer includes a titanium-aluminum-titanium laminated metal layer.

[0013] On the other hand, an embodiment of the present application provides a touch panel driving method, which is used to drive the touch panel in any of the above embodiments, wherein the touch panel includes a gesture recognition state and a touch state, and the touch panel driving method includes: in the gesture recognition state, the touch control unit does not work, the gesture recognition control unit sends a gesture driving signal to at least part of the touch electrodes through a multiplexer, and the gesture recognition control unit receives the gesture sensing signal of the touch electrodes; in the touch state, the gesture recognition control unit does not work, the touch control unit sends a touch driving signal to the touch electrodes, and the touch control unit receives the touch sensing signal of the touch electrodes.

[0014] According to another aspect of the present application, in the gesture recognition state, the touch control unit does not work, and the gesture recognition control unit sends a gesture drive signal to at least part of the touch electrodes through a multiplexer. The step in which the gesture recognition control unit receives the gesture sensing signal of the touch electrodes includes: in the gesture recognition state, part of the first touch electrodes in the touch electrodes are multiplexed as the first gesture recognition conductive blocks, and part of the first touch electrodes are multiplexed as the second gesture recognition conductive blocks; and / or, in the gesture recognition state, part of the second touch electrodes in the touch electrodes are multiplexed as the first gesture recognition conductive blocks, and part of the second touch electrodes are multiplexed as the second gesture recognition conductive blocks.

[0015] Another aspect of the embodiments of the present application provides a display device, comprising the touch panel in any of the above embodiments.

[0016] Compared with the prior art, the touch panel provided in the embodiment of the present invention includes a substrate, a touch layer and a gesture recognition control unit. The touch layer includes multiple touch electrodes. The touch electrodes can be used to realize the touch function. Since the gesture recognition control unit is electrically connected to at least part of the touch electrodes, the gesture recognition function of the touch panel can be realized through the transmission of electrical signals between the gesture recognition control unit and the touch electrodes. The embodiment of the present application integrates the touch function and the gesture recognition function, and there is no need to set up an additional gesture recognition film layer, which effectively reduces the frame size of the touch panel, reduces the thickness of the touch panel, saves the number of required mask plates, simplifies the process flow and reduces the production cost, and improves the performance of the touch panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic structural diagram of a touch panel provided by an embodiment of the present invention;

[0019] Figure 2 An embodiment provides Figure 1 A schematic diagram of the enlarged structure of the middle area A;

[0020] Figure 3 Another embodiment provides Figure 1 A schematic diagram of the enlarged structure of the middle area A;

[0021] Figure 4 Yet another embodiment provides Figure 1 A schematic diagram of the enlarged structure of the middle area A;

[0022] Figure 5 is a film layer structure diagram of a touch panel provided by an embodiment of the present invention;

[0023] Figure 6 The present invention is a flowchart of a method for preparing a touch panel provided by an embodiment of the present invention.

[0024] In the attached figure:

[0025] 1-Substrate;

[0026] 2-touch layer; 21-first electrode block; 22-second electrode block; 23-buffer layer; 24-insulating layer; 25-passivation layer;

[0027] 3-multiplexer; 31-first multiplexing unit; 32-second multiplexing unit;

[0028] 4-gesture recognition control unit; 5-touch control unit; 6-array layer;

[0029] 7-light-emitting functional layer; 71-first electrode layer; 72-light-emitting layer; 73-second electrode layer;

[0030] 8-polarizer; 9-cover plate;

[0031] B1-first edge electrode; B2-second edge electrode; C1-first touch signal line; C2-second touch signal line; Z1-first middle electrode; Z2-second middle electrode; P1-first gesture recognition conductive block; P2-second gesture recognition conductive block; J-touch electrode; J1-first touch electrode; J2-second touch electrode; F-packaging layer; K-bridge; M1-first conductive layer; M2-second conductive layer; L1-first gesture recognition connecting line; L2-second gesture recognition connecting line; Z-active layer; G-gate; S-source; D-drain; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0034] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0035] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0036] The present application provides a touch panel, a touch panel driving method and a display device. Figures 1 to 6 Various embodiments of a touch panel, a touch panel driving method, and a display device are described.

[0037] See also Figure 1 to Figure 2 A touch panel provided in an embodiment of the present application includes: a substrate 1; a touch layer 2, which is arranged on one side of the substrate 1, and the touch layer 2 includes a plurality of touch electrodes J; and a gesture recognition control unit 4, which is electrically connected to at least some of the touch electrodes J.

[0038] The touch panel provided in the embodiment of the present invention includes a substrate 1, a touch layer 2 and a gesture recognition control unit 4. The touch layer 2 includes a plurality of touch electrodes J. The touch electrodes J can be used to realize the touch function. Since the gesture recognition control unit 4 is electrically connected to at least part of the touch electrodes J, the gesture recognition function of the touch panel can be realized through the transmission of electrical signals between the gesture recognition control unit 4 and the touch electrodes J. The embodiment of the present application integrates the touch function and the gesture recognition function, and there is no need to set up an additional gesture recognition film layer, which effectively reduces the frame size of the touch panel, reduces the thickness of the touch panel, saves the number of required mask plates, simplifies the process flow and reduces the production cost, and improves the performance of the touch panel.

[0039] The substrate 1 may be a hard substrate, such as a glass substrate, or a flexible substrate, and its material may be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate. The substrate 1 is mainly used to support the device disposed thereon.

[0040] The touch layer 2 can be made of metal materials such as molybdenum, titanium, aluminum, silver, etc. Of course, the touch layer 2 can also be made of other materials, such as ITO (Indium Tin Oxide) material. ITO has high light transmittance, which can effectively improve the light transmittance of the touch panel and ensure the display effect.

[0041] Optionally, the touch electrode J can adopt a self-capacitance structure, that is, each touch electrode J is insulated from each other, or the touch electrode J can also adopt a mutual capacitance structure, some touch electrodes J are electrically connected and can extend in different directions to receive and transmit touch signals respectively.

[0042] Optionally, an array layer 6 , a light-emitting functional layer 7 and an encapsulation layer F are further stacked between the substrate 1 and the touch layer 2 .

[0043] The array layer 6 may include a driving circuit. Exemplarily, the driving circuit provided in the array layer 6 includes a transistor T and a storage capacitor. The transistor T includes an active layer Z, a gate G, a source S and a drain D. The material of the source S and the gate G may include a combination of one or more of molybdenum, titanium, aluminum, copper, etc. The gate G of the transistor T is usually used to receive a control signal so that the transistor T is turned on or off under the control of the control signal. One of the source S and the drain D of the thin film transistor is connected to the light-emitting functional layer 7 to control the normal light emission of the light-emitting functional layer 7.

[0044] Optionally, the light-emitting functional layer 7 includes a first electrode layer 71 , a light-emitting layer 72 and a second electrode layer 73 which are stacked in a direction away from the substrate 1 .

[0045] Optionally, the encapsulation layer F is used to encapsulate and protect the light-emitting layer 72, and the encapsulation layer F includes a first encapsulation layer, and the material of the first encapsulation layer includes an inorganic material. The inorganic material can be specifically made of silicon nitride, silicon oxide, silicon oxynitride and other materials, and can be specifically formed by a CVD (Chemical Vapor Deposition) process.

[0046] Optionally, the encapsulation layer F further comprises a second encapsulation layer located on the side of the first encapsulation layer away from the substrate 1, and the material of the second encapsulation layer comprises an organic material. The organic material can be made of resin or polymer organic material, and can be formed by IJP (Inkjet printing) process.

[0047] Optionally, the encapsulation layer F also includes a third encapsulation layer located on the side of the second encapsulation layer away from the substrate 1, and the material of the third encapsulation layer includes an inorganic material. Continuing to add an inorganic encapsulation layer outside the organic encapsulation layer can further improve the encapsulation effect of the encapsulation layer; in this embodiment, the material of the third encapsulation layer can be the same as or different from the material of the first encapsulation layer, and there is no special limitation.

[0048] Optionally, the material of the first encapsulation layer is the same as the material of the third encapsulation layer, so that the first encapsulation layer and the third encapsulation layer can be prepared using the same equipment, which can simplify the preparation process of the display panel.

[0049] Optionally, the touch panel further includes film layers such as a polarizer 8 and a cover plate 9 which are arranged on a side of the touch layer 2 facing away from the substrate 1 .

[0050] Optionally, the touch panel further includes a multiplexer 3 , each multiplexer 3 is connected to a plurality of touch electrodes J, and the multiplexer 3 is electrically connected to the gesture recognition control unit 4 .

[0051] The main function of the multiplexer 3 is to combine multiple input signals into one output signal. Specifically, the multiplexer 3 combines multiple input signals at the transmitting end to reduce channel occupancy and improve channel utilization efficiency. At the receiving end, the multiplexer 3 can separate the combined signal into the original multiple input signals to ensure that each signal can be correctly received and processed.

[0052] In this embodiment, the multiplexer 3 can be connected to a plurality of touch electrodes J at the same time to facilitate control and reduce the number of required signal lines.

[0053] Optionally, the touch panel further includes a touch control unit 5, and the touch electrode J is electrically connected to the touch control unit 5 to achieve touch recognition.

[0054] It should be noted that the touch panel provided in this embodiment includes a touch state and a gesture recognition state, and the corresponding touch control unit 5 and gesture recognition control unit 4 communicate with each other and work in time sharing; when in the touch state, the gesture recognition control unit 4 does not work, and the touch panel performs normal touch functions; when in the gesture recognition state, the touch control unit 5 does not work, and the touch panel realizes the gesture recognition function.

[0055] In some optional embodiments, the touch electrode J includes a first touch electrode J1, the first touch electrode J1 includes a plurality of first electrode blocks 21 arranged and electrically connected along a first direction X, the plurality of first touch electrodes J1 are spaced apart along a second direction Y, at least some of the first touch electrodes J1 are electrically connected to the gesture recognition control unit 4, and the first direction X and the second direction Y intersect.

[0056] In this embodiment, the first electrode blocks 21 in the first touch control electrodes J1 are electrically connected as a whole, so the gesture recognition control unit 4 can simultaneously send the same electrical signal to the first electrode blocks 21 in the first touch control electrodes J1 for unified control.

[0057] Optionally, the multiplexer includes multiple first multiplexing units 31, and along the second direction Y, the first multiplexing units 31 are electrically connected to at least two first touch electrodes J1; optionally, in the gesture recognition state, the first electrode block 21 in the first touch electrode J1 connected to at least one first multiplexing unit 31 is multiplexed as the first gesture recognition conductive block P1, and the first electrode block 21 in the first touch electrode J1 connected to at least one first multiplexing unit 31 is multiplexed as the second gesture recognition conductive block P2.

[0058] In this embodiment, the first electrode blocks 21 in the first touch electrodes J1 are connected, so the first multiplexing unit 31 only needs to be electrically connected to one of the first electrode blocks 21 in the first touch electrodes J1 to send the same gesture recognition signal to the first electrode blocks 21 in the first touch electrodes J1. In the gesture recognition state, the entire row of first touch electrodes J1 can be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2. In this embodiment, only the first electrode block 21 can be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2, and the second electrode block 22 is only used for the touch function, so as to facilitate control and avoid mutual interference.

[0059] In the gesture recognition state, the first electrode block 21 in the first touch electrode J1 connected to one, two or more first multiplexing units 31 is multiplexed as the first gesture recognition conductive block P1, and the first electrode block 21 in the first touch electrode J1 connected to one, two or more first multiplexing units 31 is multiplexed as the second gesture recognition conductive block P2.

[0060] In addition to the above-mentioned form of multiplexing the first electrode block 21 as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2, the second electrode block 22 may also be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2.

[0061] In some optional embodiments, the touch electrode J also includes a second touch electrode J2; the second touch electrode J2 includes a plurality of second electrode blocks 22 arranged along the second direction Y and electrically connected, the plurality of second touch electrodes J2 are spaced apart along the first direction X, and the second touch electrode J2 and the first touch electrode J1 are insulated; at least part of the second touch electrodes J2 are electrically connected to the gesture recognition control unit 4.

[0062] In this embodiment, at least part of the second touch electrodes J2 are electrically connected to the gesture recognition control unit 4 so that the second touch electrodes J2 can be used to implement the gesture recognition function.

[0063] Optionally, the touch panel further includes a touch control unit 5, the first touch electrodes J1 are electrically connected to the touch control unit 5, and the second touch electrodes J2 are electrically connected to the touch control unit 5. In the touch state, the touch control unit 5 can send a touch driving signal to one of the first electrode block 21 and the second electrode block 22, and return a touch sensing signal through the other, thereby realizing touch recognition of the touch panel.

[0064] Some of the first electrode blocks 21 and / or the second electrode blocks 22 are electrically connected to the gesture recognition control unit 4 through the multiplexer 3. In the gesture recognition state, the multiplexer 3 can send a gesture recognition driving signal to the first electrode blocks 21 and / or the second electrode blocks 22 connected thereto, so that the corresponding first electrode blocks 21 and / or the second electrode blocks 22 serve as the first gesture recognition conductive blocks P1, and the first electrode blocks 21 and / or the second electrode blocks 22 connected to other multiplexers 3 can serve as the second gesture recognition conductive blocks P2 to send gesture recognition sensing signals to the gesture recognition control unit 4, so as to realize the gesture recognition function of the touch panel.

[0065] Optionally, the multiplexer includes a plurality of second multiplexing units 32 , and along the first direction, the second multiplexing units are electrically connected to at least two second touch electrodes J2 .

[0066] In the gesture recognition state, the second electrode block 22 in the second touch electrode J2 connected to at least one second multiplexing unit 32 is multiplexed as the first gesture recognition conductive block P1, and the second electrode block 22 in the second touch electrode J2 connected to at least one second multiplexing unit 32 is multiplexed as the second gesture recognition conductive block P2;

[0067] In this embodiment, the entire second touch electrodes J2 connected to the second multiplexing unit 32 may be used as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2 .

[0068] The second electrode blocks 22 in the second touch electrodes J2 are connected, so the second multiplexing unit 32 only needs to be electrically connected to one of the second electrode blocks 22 in the second touch electrodes J2 to send the same gesture recognition signal to the second electrode blocks 22 in the second touch electrodes J2. In the gesture recognition state, the entire column of second touch electrodes J2 can be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2. In this embodiment, only the second electrode block 22 can be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2, and the first electrode block 21 is only used for the touch function, so as to facilitate control and avoid mutual interference.

[0069] Alternatively, see Figure 4 , the first multiplexing unit 31 and the second multiplexing unit 32 may also be set at the same time to simultaneously utilize the first electrode block 21 and the second electrode block 22 to be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2 in the gesture recognition state. For example, the first electrode block 21 connected to part of the first multiplexing unit 31 may be used as the first gesture recognition conductive block P1, and the second electrode block 22 connected to part of the second multiplexing unit 32 may be used as the second gesture recognition conductive block P2.

[0070] In another embodiment, the first electrode block 21 connected to part of the first multiplexing units 31 can be used as the first gesture recognition conductive block P1, the first electrode block 21 connected to another part of the first multiplexing units 31 can be used as the second gesture recognition conductive block P2, and the second electrode block 22 connected to part of the second multiplexing units 32 can be used as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2. There is no special limitation, as long as the required electric field is formed between the first gesture recognition conductive block P1 and the second gesture recognition conductive block P2 in the gesture recognition state.

[0071] See also Figure 2 In some optional embodiments, the first touch electrode J1 includes at least two edge first electrodes B1, and an intermediate first electrode Z1 arranged between adjacent edge first electrodes B1 along the second direction, and the intermediate first electrode ZQ and the edge first electrode B1 are electrically connected to different gesture recognition control units 4 respectively.

[0072] In this embodiment, the middle first electrode Z1 and the edge first electrode B1 may include one or more first touch electrodes J1, each first touch electrode J1 in the middle first electrode Z1 may be electrically connected to the same gesture recognition control unit 4, and each first touch electrode J1 in the edge first electrode B1 on the same side may be electrically connected to the same gesture recognition control unit 4 to facilitate signal transmission.

[0073] The edge first electrodes B1 are disposed on both sides of the middle first electrode Z1 along the second direction Y, so as to form an electric field between the first electrode block 21 in the middle first electrode and the first electrode block 21 in the edge first electrode B1 in the gesture recognition state.

[0074] See also Figure 3 In some other optional embodiments, the second touch electrode J2 includes at least two edge second electrodes B2, and an intermediate second electrode Z2 arranged between adjacent edge second electrodes B2 along the first direction X, and the intermediate second electrode Z2 and the edge second electrode B2 are electrically connected to different gesture recognition control units 4 respectively.

[0075] In this embodiment, the middle second electrode Z2 and the edge second electrode B2 may include one or more second touch electrodes J2, each second touch electrode J2 in the middle second electrode Z2 can be electrically connected to the same gesture recognition control unit 4, and each second touch electrode J2 in the edge second electrode B2 located on the same side can be electrically connected to the same gesture recognition control unit 4 to facilitate signal transmission.

[0076] The edge second electrodes B2 are disposed on both sides of the middle second electrode Z2 along the second direction Y, so as to form an electric field between the second electrode block 22 in the middle second electrode Z2 and the second electrode block 22 in the edge second electrode B2 in the gesture recognition state.

[0077] In some optional embodiments, the first gesture recognition conductive block P1 is at least partially disposed around the second gesture recognition conductive block P2.

[0078] Considering that both the first gesture recognition conductive block P1 and the second gesture recognition conductive block P2 are formed by multiplexing at least one row of first electrode blocks 21 or at least one column of second electrode blocks 22, the first gesture recognition conductive block P1 can be arranged on both sides of the second gesture recognition conductive block P2 along the first direction X, or on both sides of the second direction Y. For example, along the first direction X, at least one column of second touch electrodes J2 located in the middle can be used as the second gesture recognition conductive block P2, and at least one column of second touch electrodes J2 located on both sides of the second gesture recognition conductive block P2 along the first direction X can be used as the first gesture recognition conductive block P1. Optionally, along the second direction Y, at least one row of first touch electrodes J1 close to the edge of the touch panel can be used as the first gesture recognition conductive block P1, so as to cooperate with the second gesture recognition conductive block P2 in the second direction Y.

[0079] In some optional embodiments, the touch panel further includes a first gesture recognition connection line L1, a first touch signal line C1 and a second touch signal line C2; ​​both ends of the first gesture recognition connection line L1 are respectively connected to the first touch electrode J1 and the multiplexer 3, and / or, are respectively connected to the second touch electrode J2 and the multiplexer 3; the first touch signal line C1 is respectively connected to the first touch electrode J1 and the touch control unit 5, and both ends of the second touch signal line C2 are respectively connected to the second touch electrode J2 and the touch control unit 5;

[0080] In this embodiment, along the second direction Y, at least two adjacent first touch electrodes J1 may be electrically connected to the multiplexer 3 through the first gesture recognition connection line L1, and similarly, along the first direction X, at least two adjacent second touch electrodes J2 may be electrically connected to the multiplexer 3 through the first gesture recognition connection line L1. The first touch signal line C1 may be electrically connected to a row of first electrode blocks 21, and the second touch signal line C2 may be electrically connected to a column of second electrode blocks 22.

[0081] Since the first electrode blocks 21 in the same row are an electrically connected whole, a first touch electrode J1 only needs one first gesture recognition connection line L1 to be electrically connected to the multiplexer 3 . Similarly, a second touch electrode J2 only needs one first gesture recognition connection line L1 to be electrically connected to the multiplexer 3 .

[0082] Optionally, the first gesture recognition connection line L1, the first touch signal line C1, and the second touch signal line C2 are arranged in the same layer, that is, the first gesture recognition connection line L1, the first touch signal line C1, and the second touch signal line C2 can be prepared together through the same process, and the three can be prepared with the same material to simplify the preparation process and reduce production costs.

[0083] In some optional embodiments, the touch panel also includes a second gesture recognition connection line L2, the two ends of the second gesture recognition connection line L2 are respectively connected to the gesture recognition control unit 4 and the multiplexer 3, and part of the second gesture recognition connection line L2 and part of the first touch signal line C1 are respectively arranged on two opposite sides of the touch layer 2 along the first direction X.

[0084] It can be understood that the second gesture recognition connection line L2 and the first touch signal line C1 are respectively routed on two opposite sides of the touch panel in the first direction X to avoid mutual interference between the two and facilitate their respective wiring. The gesture recognition control unit 4 can send a gesture recognition signal to the connected multiplexer 3 through the second gesture recognition connection line L2 to implement the gesture recognition function.

[0085] See also Figure 5 In some optional embodiments, the touch layer 2 includes at least two conductive layers, the first electrode block 21 and the second electrode block 22 are arranged on the same layer of the at least two conductive layers, the first gesture recognition connection line L1, the first touch signal line C1, and the second touch signal line C2 are arranged on one layer of the at least two conductive layers, and are arranged on a different layer from the first touch electrode J1.

[0086] Optionally, an insulating layer 24 is provided between adjacent conductive layers to achieve insulation, and the first gesture recognition connection line L1 , the first touch signal line C1 , and the second touch signal line C2 may be connected to the first electrode block 21 or the second electrode block 22 through vias provided in the insulating layer 24 .

[0087] Optionally, the material of the insulating layer 24 includes at least one of silicon nitride, silicon oxide and silicon oxynitride, and the thickness of the insulating layer 24 is 100 nm to 400 nm.

[0088] Optionally, along a direction away from the substrate 1 , the touch layer 2 includes a buffer layer 23 , a first conductive layer M1 , an insulating layer 24 , a second conductive layer M2 and a passivation layer 25 .

[0089] The buffer layer 23 plays a buffering role and can be made of at least one material selected from silicon nitride, silicon oxide and silicon oxynitride. Optionally, the buffer layer 23 includes silicon nitride, and the film thickness of the buffer layer 23 is 50 nm to 400 nm.

[0090] Optionally, the touch layer 2 also includes a bridge portion K, and the bridge portion K and the first electrode block 21 and the second electrode block 22 are located in different conductive layers. Along the first direction X, the bridge portion K is used to electrically connect adjacent first electrode blocks 21, or, along the second direction Y, the bridge portion K is used to electrically connect adjacent second electrode blocks 22.

[0091] The first conductive layer M1 and the second conductive layer M2 can be made of metal, alloy or metal compound. For example, the first conductive layer M1 and the second conductive layer M2 can include titanium-aluminum-titanium laminated metal layers. The film thickness of the first conductive layer M1 and the second conductive layer M2 can be 100nm to 600nm.

[0092] The first conductive layer M1 can be used to form a bridge portion K, a first gesture recognition connection line L1, a first touch signal line C1, and a second touch signal line C2. The second conductive layer M2 can be used to form a first electrode block 21 and a second electrode block 22. Optionally, the conductive layer has a metal grid structure. For example, the second conductive layer M2 can have a metal grid structure, that is, the first electrode block 21 and the second electrode block 22 have a metal grid structure to improve light transmittance.

[0093] The passivation layer 25 can encapsulate the conductive layer to isolate it from external influences, and can be made of a low-temperature organic adhesive material. For example, the passivation layer 25 can include acrylic organic adhesive, and the film thickness of the passivation layer 25 can be 1 μm to 3 μm.

[0094] See also Figure 6 The embodiment of the present invention further provides a touch panel driving method for driving the touch panel in any of the above implementations, wherein the touch panel includes a gesture recognition state and a touch state, and the touch panel driving method includes:

[0095] S110: In the gesture recognition state, the touch control unit 5 does not work, the gesture recognition control unit 4 sends a gesture driving signal to at least part of the touch electrodes J through the multiplexer 3, and the gesture recognition control unit receives the gesture sensing signal of the touch electrodes J;

[0096] S120 : In the touch state, the gesture recognition control unit 4 does not work, the touch control unit 5 sends a touch driving signal to the touch electrode J, and the touch control unit 5 receives a touch sensing signal from the touch electrode J.

[0097] In the touch panel driving method in the embodiment of the present invention, the touch electrode J is time-division multiplexed. In the touch state, the touch function is realized by controlling the touch control unit 5. In the gesture recognition state, the gesture recognition control unit 4 sends a gesture recognition drive signal to the touch electrode J through the multiplexer 3 to realize the gesture recognition function. The touch function and the gesture recognition function are integrated, thereby improving the performance of the touch panel.

[0098] In step S110 , in the gesture recognition state, the touch control unit 5 does not work, that is, the touch control unit 5 does not send a voltage signal to the touch electrode J to avoid interfering with the gesture recognition function.

[0099] In step S120 , in the touch state, the gesture recognition control unit 4 does not work, that is, the gesture recognition control unit 4 does not send a voltage signal to the touch electrode J to avoid interfering with the touch function.

[0100] In some optional embodiments, in the gesture recognition state, the touch control unit 5 does not work, the gesture recognition control unit 4 sends a gesture drive signal to at least part of the touch electrodes J through the multiplexer 3, and the step in which the gesture recognition control unit 4 receives the gesture sensing signal of the touch electrode J includes: in the gesture recognition state, part of the first touch electrodes J1 in the touch electrodes J is multiplexed as the first gesture recognition conductive block P1, and part of the first touch electrodes J1 is multiplexed as the second gesture recognition conductive block P2; and / or, in the gesture recognition state, part of the second touch electrodes J2 in the touch electrodes J is multiplexed as the first gesture recognition conductive block P1, and part of the second touch electrodes J2 is multiplexed as the second gesture recognition conductive block P2.

[0101] In this embodiment, the first gesture recognition conductive block P1 and the second gesture recognition conductive block P2 are both formed by multiplexing at least one row of first electrode blocks 21 or at least one column of second electrode blocks 22, that is, only the first electrode block 21 can be multiplexed as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2, and the second electrode block 22 is only used for the touch function to facilitate control and avoid mutual interference.

[0102] Alternatively, only the second touch electrode J2 is used as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2. Alternatively, the first electrode block 21 and the second electrode block 22 are used as the first gesture recognition conductive block P1 or the second gesture recognition conductive block P2 in the gesture recognition state. For example, the first electrode block 21 connected to a part of the first multiplexing unit 31 can be used as the first gesture recognition conductive block P1, and the second electrode block 22 connected to a part of the second multiplexing unit 32 can be used as the second gesture recognition conductive block P2.

[0103] An embodiment of the present invention further provides a display device, comprising the touch panel in any one of the above embodiments.

[0104] The display device provided by the embodiment of the present invention has the technical effect of the technical solution of the touch panel in any of the above embodiments, and the explanation of the structures and terms that are the same as or corresponding to the above embodiments will not be repeated here.

[0105] The display device provided in the embodiment of the present invention may be an organic light-emitting diode (OLED) display device, a quantum dot light-emitting diode (QLED) or a micro flat panel display device (Micro-OLED or Micro-LED).

[0106] The display device provided in the embodiment of the present application can be applied to a mobile phone, or it can be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present application does not make any special limitations on this.

[0107] The above are only specific implementation methods of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

[0108] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

Claims

1. A touch panel, characterized in that: include: substrate; A touch layer is provided on one side of the substrate, the touch layer comprises a plurality of touch electrodes, the touch electrodes; The gesture recognition control unit is electrically connected to at least part of the touch electrodes.

2. The touch panel according to claim 1, characterized in that: The touch electrodes include first touch electrodes, which include a plurality of first electrode blocks arranged along a first direction and electrically connected, the plurality of first touch electrodes are spaced apart along a second direction, at least some of the first touch electrodes are electrically connected to the gesture recognition control unit, and the first direction and the second direction intersect.

3. The touch panel according to claim 2, characterized in that: The touch control electrode further includes a second touch control electrode; The second touch control electrodes include a plurality of second electrode blocks arranged along the second direction and electrically connected, the plurality of second touch control electrodes are arranged at intervals along the first direction, and the second touch control electrodes are insulated from the first touch electrodes; At least part of the second touch electrodes are electrically connected to the gesture recognition control unit; Preferably, the touch panel further includes a touch control unit, and the touch electrodes are electrically connected to the touch control unit.

4. The touch panel according to claim 3, characterized in that: The touch panel further comprises a multiplexer, each multiplexer is connected to a plurality of the touch electrodes, and the multiplexer is electrically connected to the gesture recognition control unit; Preferably, the multiplexer comprises a plurality of first multiplexing units, and along the second direction, the first multiplexing units are electrically connected to at least two of the first touch electrodes; Preferably, the multiplexer comprises a plurality of second multiplexing units, and along the first direction, the second multiplexing units are electrically connected to at least two of the second touch control electrodes.

5. The touch panel according to claim 4, characterized in that: The first touch electrode includes at least two edge first electrodes and an intermediate first electrode disposed between adjacent edge first electrodes along the second direction, the intermediate first electrode and the edge first electrode being electrically connected to different gesture recognition control units respectively; and / or, The second touch electrode includes at least two edge second electrodes and a middle second electrode disposed between adjacent edge second electrodes along the first direction, and the middle second electrode and the edge second electrode are electrically connected to different gesture recognition control units respectively.

6. The touch panel according to claim 4, characterized in that: It also includes a first gesture recognition connection line, a first touch signal line and a second touch signal line; Two ends of the first gesture recognition connection line are respectively connected to the first touch control electrode and the multiplexer, and / or are respectively connected to the second touch control electrode and the multiplexer; The first touch signal lines are respectively connected to the first touch electrodes and the touch control unit, and the second touch signal lines are respectively connected to the second touch electrodes and the touch control unit; Preferably, the first gesture recognition connection line, the first touch signal line, and the second touch signal line are arranged in the same layer; Preferably, the touch panel also includes a second gesture recognition connection line, two ends of which are respectively connected to the gesture recognition control unit and the multiplexer, and part of the second gesture recognition connection line and part of the first touch signal line are respectively arranged on two opposite sides of the touch layer along the first direction.

7. The touch panel according to claim 6, characterized in that: The touch layer includes at least two conductive layers, the first touch electrode and the second touch electrode are arranged on the same layer of the at least two conductive layers, and the first gesture recognition connection line, the first touch signal line, and the second touch signal line are arranged on one layer of the at least two conductive layers and are arranged on a different layer from the first touch electrode; Preferably, the touch layer further includes a bridge portion, the bridge portion and the first touch electrode and the second touch electrode are located in different conductive layers, and along the first direction, the bridge portion electrically connects adjacent first electrode blocks, or, along the second direction, the bridge portion electrically connects adjacent second electrode blocks; Preferably, the conductive layer is in a metal grid structure; Preferably, the conductive layer comprises a titanium-aluminum-titanium laminated metal layer.

8. A touch panel driving method, used to drive the touch panel according to any one of claims 1 to 7, characterized in that: The touch panel includes a gesture recognition state and a touch state, and the touch panel driving method includes: In the gesture recognition state, the touch control unit does not work, the gesture recognition control unit sends a gesture driving signal to at least part of the touch electrodes through a multiplexer, and the gesture recognition control unit receives the gesture sensing signal of the touch electrodes; In the touch state, the gesture recognition control unit does not work, the touch control unit sends a touch driving signal to the touch electrode, and the touch control unit receives a touch sensing signal from the touch electrode.

9. The touch panel driving method according to claim 8, characterized in that: In the gesture recognition state, the touch control unit does not work, the gesture recognition control unit sends a gesture drive signal to at least part of the touch electrodes through a multiplexer, and the step of the gesture recognition control unit receiving the gesture sensing signal of the touch electrodes includes: In the gesture recognition state, part of the first touch electrodes in the touch electrodes are multiplexed as first gesture recognition conductive blocks, and part of the first touch electrodes are multiplexed as second gesture recognition conductive blocks; and / or, In the gesture recognition state, part of the second touch electrodes in the touch electrodes are multiplexed as first gesture recognition conductive blocks, and part of the second touch electrodes are multiplexed as second gesture recognition conductive blocks.

10. A display device, characterized in that: The touch panel comprises the touch panel as claimed in any one of claims 1 to 8.

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