Touch module, display panel and display module
By multiplexing the first electrode of the first electrode layer in the touch module, and positioning the second electrode and the third electrode are both located in the second electrode layer, alternately arranging, the problem of the large number of touch module film layers in the prior art is solved, and the effect of reducing costs and improving signal-to-noise ratio is achieved.
Patent Information
- Application Number
- CN202510125005.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-05-23
AI Technical Summary
In the existing display devices, the number of film layers of the touch module is large, resulting in higher costs and lower signal-to-noise.
By multiplexing the first electrode of the first electrode layer into the touch electrode and the electromagnetic electrode of the touch module, the number of electrode layers is reduced, and the second electrode and the third electrode are both located in the second electrode layer, alternately arranged to reduce the load.
The number of film layers and production costs of the touch module are reduced, the signal-to-noise ratio is improved, and the load of the touch electrode is reduced by reducing the overlap area of the electrodes.
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Figure CN120029490A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display technology, and in particular to a touch module, a display panel and a display module. Background Art
[0002] In some electronic devices, in order to improve the handwriting experience, an electromagnetic resonance (EMR) detection film layer for detecting an electromagnetic pen is provided on the basis of providing a capacitive touch detection film layer.
[0003] However, in existing display devices, the touch module has a large number of film layers. Summary of the invention
[0004] In view of this, the embodiments of the present application provide a touch module, a display panel and a display module to solve the problem of a large number of film layers in the touch module of the existing display device.
[0005] In a first aspect, the present application provides a touch module, which includes a first electrode layer and a second electrode layer that are stacked; the first electrode layer includes a plurality of first electrodes extending along a first direction; the second electrode layer includes a plurality of second electrodes and a third electrode extending along a second direction, and the second electrodes and the third electrodes are alternately arranged along the first direction; the first direction intersects with the second direction; wherein the first electrode and the second electrode serve as touch electrodes of the touch module, and the first electrode and the third electrode serve as electromagnetic electrodes of the touch module.
[0006] In one embodiment, the orthographic projection of the first electrode on the second electrode layer has a first overlapping area with the second electrode, and the length of the first electrode in the first overlapping area in the second direction is smaller than the length of the first electrode in the non-overlapping area in the second direction; or, the first electrode has a first hollow area, and the first hollow area is located in the first overlapping area; preferably, the first electrode is grid-shaped, and the area of the first hollow area is larger than the area of a grid.
[0007] In one embodiment, the orthographic projection of the first electrode on the second electrode layer has a first overlapping area with the second electrode, and the length of the second electrode in the first overlapping area in the first direction is smaller than the length of the second electrode in the non-overlapping area in the first direction; or, the second electrode has a second hollow area, and the second hollow area is located in the first overlapping area; preferably, the second electrode is grid-shaped, and the area of the second hollow area is larger than the area of a grid.
[0008] In one embodiment, the orthographic projection of the first electrode on the second electrode layer has a second overlapping area with the third electrode, and the length of the first electrode in the second overlapping area in the second direction is smaller than the length of the first electrode in the non-overlapping area in the second direction; or, the first electrode has a third hollow area, and the third hollow area is located in the second overlapping area; preferably, the first electrode is grid-shaped, and the area of the third hollow area is larger than the area of a grid.
[0009] In one embodiment, the orthographic projection of the first electrode on the second electrode layer has a second overlapping area with the third electrode, and the length of the third electrode in the second overlapping area in the first direction is smaller than the length of the third electrode in the non-overlapping area in the first direction; or, the third electrode has a fourth hollow area, and the fourth hollow area is located within the second overlapping area; preferably, the third electrode is grid-shaped, and the area of the fourth hollow area is greater than the area of a grid.
[0010] In one embodiment, the plurality of first electrodes are divided into at least two first electrode channels, and the first electrodes of each first electrode channel are electrically connected; preferably, the first electrode includes a first grid portion and two first connecting portions, the two first connecting portions are respectively located on both sides of the first grid portion, and the first electrodes of each first electrode channel are electrically connected through the first connecting portions on the same side.
[0011] In one embodiment, the touch module further includes a selection circuit, which is connected between two adjacent first electrode channels; preferably, when the touch electrode is working, the selection circuit is disconnected; preferably, when the electromagnetic electrode is working, the selection circuit is turned on.
[0012] In one embodiment, the touch module further includes an insulating layer, which is located between the first electrode layer and the second electrode layer; preferably, the touch module further includes a protective layer, which is located on a side of the first electrode layer away from the second electrode layer.
[0013] The second aspect of the present application provides a display panel, including a substrate, a light-emitting layer, a thin film encapsulation layer and the above-mentioned touch module, the light-emitting layer is located on the substrate; the thin film encapsulation layer is located on the side of the light-emitting layer away from the substrate; the thin film encapsulation layer includes a stacked first encapsulation layer, a second encapsulation layer and a third encapsulation layer; the first electrode layer is located on the side of the third encapsulation layer away from the second encapsulation layer, and the second electrode layer is located between the first encapsulation layer and the second encapsulation layer.
[0014] A third aspect of the present application provides a display module, including a display panel and the above-mentioned display module, wherein the touch module is located on the display panel.
[0015] According to the touch module provided by the embodiment of the present application, by reusing the first electrode of the first electrode layer as the touch electrode and electromagnetic electrode of the touch module, the electrode layer of the touch module can be reduced, and the number of film layers of the touch module can be reduced. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.
[0017] Figure 1 It is a structural schematic diagram of a touch module in the related art.
[0018] Figure 2 It is a structural schematic diagram of a touch module provided in the first embodiment of the present application.
[0019] Figure 3 yes Figure 2 The schematic diagram of the local electrode arrangement of the touch module is shown.
[0020] Figure 4 It is a schematic diagram of the local electrode arrangement of the touch module provided in the second embodiment of the present application.
[0021] Figure 5 It is a schematic diagram of the local electrode arrangement of the touch module provided in the third embodiment of the present application.
[0022] Figure 6 It is a schematic diagram of the local electrode arrangement of the touch module provided in the fourth embodiment of the present application.
[0023] Figure 7 It is a schematic diagram of the local electrode arrangement of the touch module provided in the fifth embodiment of the present application.
[0024] Figure 8 It is a schematic diagram of the local electrode arrangement of the touch module provided in the sixth embodiment of the present application.
[0025] Fig. 9 It is a schematic diagram of the electrode arrangement of the touch module provided in the seventh embodiment of the present application.
[0026] Fig.10It is a schematic diagram of the structure of the display panel provided in the embodiment of the present application. DETAILED DESCRIPTION
[0027] In some electronic devices, in order to improve the handwriting experience, an electromagnetic resonance detection film layer for detecting an electromagnetic pen is provided in addition to a capacitive touch detection film layer. However, in existing display devices, the number of film layers of the touch module is relatively large.
[0028] Figure 1 Schematic diagram of the structure of the touch module in the related art. Figure 1 As shown, the touch module 100 includes a first electrode layer 10, a second electrode layer 20 and a third electrode layer 30. The first electrode layer 10 includes a plurality of first electrodes, and the plurality of first electrodes serve as touch electrodes of the touch module 100. The second electrode layer 20 includes a plurality of second electrodes, and the third electrode layer 30 includes a plurality of third electrodes. The extension directions of the second electrodes and the third electrodes intersect, and the second electrodes and the third electrodes serve as electromagnetic electrodes of the touch module 100. However, the above touch module 100 requires three electrode layers, and an insulating layer 40 is required between two adjacent electrode layers for electrical insulation. Therefore, the number of film layers in the above touch module 100 is large, and the cost is high.
[0029] As mentioned in the background technology, in the related art, Figure 1 The touch module has the problem of a large number of film layers. In view of this, an embodiment of the present application provides a touch module, which can reduce the electrode layers of the touch module and the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and the electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required for making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are alternately arranged, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module.
[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0031] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods and means well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.
[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.
[0034] Figure 2 is a structural schematic diagram of a touch module provided in the first embodiment of the present application, Figure 3 yes Figure 2 The schematic diagram of the local electrode arrangement of the touch module is shown in FIG. Figure 2 and Figure 3 As shown, the touch module 100 includes a first electrode layer 10 and a second electrode layer 20, the first electrode layer 10 includes a plurality of first electrodes 101 extending along a first direction X, the second electrode layer 20 includes a plurality of second electrodes 102 and a third electrode 103 extending along a second direction Y, the second electrodes 102 and the third electrodes 103 are alternately arranged along the first direction X, wherein the first direction X intersects the second direction Y. Further, the first electrodes 101 and the second electrodes 102 serve as touch electrodes of the touch module 100, and the first electrodes 101 and the third electrodes 103 serve as electromagnetic electrodes of the touch module 100.
[0035] Optionally, in one embodiment, a plurality of first electrodes 101 are arranged along the second direction Y.
[0036] Optionally, in one embodiment, the first direction X and the second direction Y are perpendicular to each other.
[0037] Optionally, in one embodiment, the first electrode 101 may be used as a receiving electrode of the touch electrode, and the second electrode 102 may be used as a sending electrode of the touch electrode.
[0038] Optionally, in one embodiment, the material of the first electrode layer 10 and the second electrode layer 20 may be copper, silver, aluminum, molybdenum, etc., or may be alloy materials such as titanium-aluminum-titanium, copper-nickel, molybdenum-aluminum-molybdenum, etc.
[0039] Optionally, in one embodiment, the touch module 100 may further include an insulating layer 40 , where the insulating layer 40 is located between the first electrode layer 10 and the second electrode layer 20 , and the insulating layer 40 is used for electrical insulation between the first electrode layer 10 and the second electrode layer 20 .
[0040] Optionally, in one embodiment, the material of the insulating layer 40 may be silicon nitride, silicon oxide, an organic film, etc., or a combination of the above materials.
[0041] Optionally, in one embodiment, the touch module 100 may further include a protective layer 50, which is located on a side of the first electrode layer 10 away from the second electrode layer 20, and is used to protect the first electrode layer 10 and the second electrode layer 20 from scratches, corrosion and other damages.
[0042] Optionally, in one embodiment, the material of the protection layer 50 may be silicon nitride, silicon oxide, an organic film, etc., or a combination of the above materials.
[0043] The touch module provided in the embodiment of the present application can reduce the electrode layer of the touch module and reduce the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module.
[0044] Figure 4 is a schematic diagram of the local electrode arrangement of the touch module provided in the second embodiment of the present application, Figure 5 It is a schematic diagram of the local electrode arrangement of the touch module provided in the third embodiment of the present application. Figure 4 , Figure 5 The touch module and Figure 3 The difference between the touch modules shown is that Figure 4 , Figure 5 The touch control module shown reduces the mutual capacitance of the touch control electrodes by reducing the overlapping area of the first electrode and the second electrode.
[0045] Optionally, in one embodiment, the first electrode 101 and the second electrode 102 have a first overlapping region Q1 , and a length L1 of the first electrode 101 in the first overlapping region Q1 in the second direction Y is smaller than a length L2 of the first electrode 101 in the non-overlapping region in the second direction Y.
[0046] Optionally, in one embodiment, the first electrode 101 has a first hollow region M1 , and the first hollow region M1 is located in the first overlapping region Q1 .
[0047] Optionally, in one embodiment, the first electrode 101 is in a grid shape, and the area of the first hollow region M1 is greater than the area of one grid.
[0048] Optionally, in one embodiment, a length L3 of the second electrode 102 in the first overlapping region Q1 in the first direction X is smaller than a length L4 of the second electrode 102 in the first direction X in the non-overlapping region.
[0049] Optionally, in one embodiment, the second electrode 102 has a second hollow region M2 , and the second hollow region M2 is located in the first overlapping region Q1 .
[0050] Optionally, in one embodiment, the second electrode 102 is in a grid shape, and the area of the second hollow region M2 is greater than the area of one grid.
[0051] It should be understood that the method of reducing the overlapping area of the first electrode 101 and the second electrode 102 may be one or a combination of the above embodiments. For example, as an example, the length of the first electrode 101 in the first overlapping region Q1 in the second direction Y is less than the length of the first electrode 101 in the non-overlapping region in the second direction Y, and the second electrode 102 has a second hollow region M2, and the second hollow region M2 is located in the first overlapping region Q1. For another example, as an example, the first electrode 101 has a first hollow region M1, the first hollow region M1 is located in the first overlapping region Q1, and the length of the second electrode 102 in the first overlapping region Q1 in the first direction X is less than the length of the second electrode 102 in the non-overlapping region in the first direction X.
[0052] The touch module provided in the embodiment of the present application can reduce the electrode layer of the touch module and reduce the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module. Furthermore, by reducing the overlapping area of the first electrode and the second electrode, the mutual capacitance of the touch electrodes is reduced.
[0053] Figure 6 is a schematic diagram of the local electrode arrangement of the touch module provided in the fourth embodiment of the present application, Figure 7 It is a schematic diagram of the local electrode arrangement of the touch module provided in the fifth embodiment of the present application. Figure 6 , Figure 7 The touch module and Figure 3 The difference between the touch modules shown is that Figure 6 , Figure 7 The touch module reduces the load capacitance of the touch electrode by reducing the overlapping area of the first electrode and the third electrode.
[0054] Optionally, in one embodiment, the first electrode 101 and the third electrode 103 have a second overlapping region Q2, and a length L5 of the first electrode 101 in the second overlapping region Q2 in the second direction Y is smaller than a length L6 of the first electrode 101 in the non-overlapping region in the second direction Y.
[0055] Optionally, in one embodiment, the first electrode 101 has a third hollow region M3, and the third hollow region M3 is located in the second overlapping region Q2.
[0056] Optionally, in one embodiment, the first electrode 101 is in a grid shape, and the area of the third hollow region M3 is greater than the area of one grid.
[0057] Optionally, in one embodiment, a length L7 of the third electrode 103 in the second overlapping region Q2 in the first direction X is smaller than a length L8 of the third electrode 103 in the non-overlapping region in the first direction X.
[0058] Optionally, in one embodiment, the third electrode 103 has a fourth hollow region M4, and the fourth hollow region M4 is located in the second overlapping region Q2.
[0059] Optionally, in one embodiment, the third electrode 103 is in a grid shape, and the area of the fourth hollow region M4 is greater than the area of one grid.
[0060] It should be understood that the method of reducing the overlapping area of the first electrode 101 and the third electrode 103 can be one or a combination of the above embodiments. For example, as an example, the length of the first electrode 101 in the second overlapping area Q2 in the second direction Y is less than the length of the first electrode 101 in the non-overlapping area in the second direction Y, and the third electrode 103 has a fourth hollow area M4, and the fourth hollow area M4 is located in the second overlapping area Q2. For another example, as an example, the first electrode 101 has a third hollow area M3, the third hollow area M3 is located in the second overlapping area Q2, and the length of the third electrode 103 in the second overlapping area Q2 in the first direction X is less than the length of the third electrode 103 in the non-overlapping area in the first direction X.
[0061] The touch module provided in the embodiment of the present application can reduce the electrode layer of the touch module and reduce the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module. Furthermore, by reducing the overlapping area of the first electrode and the third electrode, the load capacitance of the touch electrode is reduced.
[0062] Figure 8 FIG. 6 is a schematic diagram of the local electrode arrangement of the touch module provided in the sixth embodiment of the present application. Figure 8 As shown, Figure 8 The touch module and Figure 3 The difference between the touch modules shown is that Figure 8 The multiple electrodes of the touch module shown are divided into multiple electrode channels to touch different touch positions of the display device.
[0063] Optionally, in one embodiment, the plurality of first electrodes 101 are divided into at least two first electrode channels 110 , the first electrodes 101 of each first electrode channel 110 are electrically connected, and the at least two first electrode channels 110 are used for different touch positions of the touch display device.
[0064] Optionally, in one embodiment, the first electrode 101 includes a first grid portion 1011 and two first connection portions 1012 , the first grid portion 1011 may be located in a display area of the display device, and the first connection portions 1012 may be located in a non-display area of the display device.
[0065] Optionally, in one embodiment, two first connecting portions 1012 are located on opposite sides of the first grid portion 1011, the first electrode 101 of each first electrode channel 110 is electrically connected through the first connecting portion 1012 on the same side, and the first connecting portions 1012 on both sides of the first electrode 101 of each first electrode channel 110 are electrically connected to the first connecting portions 1012 on both sides of the adjacent first electrode 101.
[0066] Optionally, in one embodiment, the plurality of second electrodes 102 are divided into at least two second electrode channels 120 , the second electrodes 102 in each second electrode channel 120 are electrically connected, and at least two second electrode channels 120 are used for different touch positions of the touch display device.
[0067] Optionally, in one embodiment, the second electrode 102 includes a second grid portion 1021 and a second connection portion 1022 , the second grid portion 1021 may be located in a display area of the display device, and the second connection portion 1022 may be located in a non-display area of the display device.
[0068] Optionally, in one embodiment, the second connection portion 1022 of each second electrode 102 is located on the same side of the second grid portion 1021 , and the second electrodes 102 of each second electrode channel 120 are electrically connected through the second connection portion 1022 on the same side.
[0069] Optionally, in one embodiment, the plurality of third electrodes 103 are divided into at least two third electrode channels 130 , the third electrodes 103 in each third electrode channel 130 are electrically connected, and at least two third electrode channels 130 are used for different touch positions of the touch display device.
[0070] Optionally, in one embodiment, the third electrode 103 includes a third grid portion 1031 and a third connection portion 1032 , the third grid portion 1031 may be located in a display area of the display device, and the third connection portion 1032 may be located in a non-display area of the display device.
[0071] Optionally, in one embodiment, the third connection portion 1032 of each third electrode 103 is located on the same side of the third grid portion 1031 , and the third electrodes 103 of each third electrode channel 130 are electrically connected through the third connection portion 1032 on the same side.
[0072] Optionally, in one embodiment, the second connection portion 1022 and the third connection portion 1032 may be on different sides.
[0073] The touch module provided in the embodiment of the present application can reduce the electrode layer of the touch module and reduce the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module. Furthermore, the multiple electrodes are divided into multiple electrode channels to touch different touch positions of the display device.
[0074] Fig. 9 FIG. 1 is a schematic diagram of the electrode arrangement of the touch module provided in the seventh embodiment of the present application. Fig. 9 As shown, Fig. 9 The touch module and Figure 8 The difference between the touch modules shown is that Fig. 9The touch control module shown also includes a selection circuit.
[0075] Optionally, in one embodiment, the touch module 100 further includes a selection circuit 60 , which is connected between two adjacent first electrode channels 110 , and is used to control the first electrode 101 to function as a touch electrode or an electromagnetic electrode.
[0076] Optionally, in one embodiment, when the touch electrode is working, the selection circuit is disconnected.
[0077] Optionally, in one embodiment, when the electromagnetic electrode is working, the circuit is selected to be turned on so that the first electrode 101 forms a loop.
[0078] The touch module provided in the embodiment of the present application can reduce the electrode layer of the touch module and reduce the number of film layers of the touch module by reusing the first electrode of the first electrode layer as the touch electrode and the electromagnetic electrode of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are both located in the second electrode layer, which can reduce the number of mask plates required when making the touch module and reduce the production cost of the touch module. Furthermore, the second electrode as the touch electrode and the third electrode as the electromagnetic electrode are arranged alternately, which can reduce the load of the touch electrode and improve the signal-to-noise ratio of the touch module. Furthermore, the touch module 100 also includes a selection circuit, which is used to control the first electrode 101 to act as a touch electrode or an electromagnetic electrode.
[0079] Fig.10 is a schematic diagram of the structure of the display panel provided in the embodiment of the present application. Fig.10 As shown, Fig.10 The display panel 200 shown includes the touch module 100 provided in the above embodiment. The display panel 200 may be a liquid crystal display panel, an OLED display panel, or the like.
[0080] Optionally, in one embodiment, the display panel 200 includes a substrate 210 , a light emitting layer 220 , and a thin film encapsulation layer 230 , wherein the light emitting layer 220 is located on the substrate 210 , and the thin film encapsulation layer 230 is located on a side of the light emitting layer 220 away from the substrate 210 .
[0081] Optionally, in one embodiment, the thin film encapsulation layer 230 includes a stacked first encapsulation layer 231 , a second encapsulation layer 232 and a third encapsulation layer 233 , which can increase the airtightness of the thin film encapsulation layer 230 to enhance the encapsulation effect of the thin film encapsulation layer 230 .
[0082] Optionally, in one embodiment, the first encapsulation layer 231 and the third encapsulation layer 233 are inorganic encapsulation layers. The material of the inorganic encapsulation layer is silicon oxide, silicon oxynitride or silicon nitride, etc. The inorganic encapsulation layer can be a single layer, a multi-layer, a composite layer, etc.
[0083] Optionally, in one embodiment, the second encapsulation layer 232 is an organic encapsulation layer, and the material of the organic encapsulation layer is a fiber material, a resin material, or a material for a laminated multilayer board, etc. The organic encapsulation layer can be a single layer, a multilayer, a composite layer, etc.
[0084] Optionally, in one embodiment, the first electrode layer 10 is located on the side of the third packaging layer 233 away from the second packaging layer 232, and the second electrode layer 20 is located between the first packaging layer 231 and the second packaging layer 233, which can increase the distance between the first electrode layer 10 and the second electrode layer 20 and further reduce the capacitance between the first electrode layer and the second electrode layer.
[0085] In the display panel provided in the embodiment of the present application, the insulating layer in the touch module can be replaced by a thin film encapsulation layer, thereby reducing the number of film layers of the display panel.
[0086] The embodiment of the present application further provides a display module, which includes a display panel 200 and a touch module 100 , wherein the touch module 100 is located on the display panel 200 .
[0087] In the display module provided in the above embodiment, the touch module is directly attached to the display panel, and the touch module and the display panel can be manufactured separately, with low process requirements and simple manufacturing.
[0088] The display module provided according to any embodiment of the present application and the touch module 100 provided in the embodiment of the present application belong to the same inventive concept, and have corresponding film layer structures and beneficial effects. Details not fully described in the embodiment of the display module can be found in the embodiment of the touch module 100, and will not be repeated here.
[0089] An embodiment of the present application further provides a display device, which includes the display module provided in the above embodiment. The display device is a product with an image display function. For example, the display device can be used to display static images, such as pictures or photos. The display device can also be used to display dynamic images, such as videos.
[0090] In addition, the display device may also have functions such as taking photos, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device also includes at least one functional module for realizing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, and the like.
[0091] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.
[0092] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.
Claims
1. A touch module, characterized in that: The touch control module comprises a first electrode layer and a second electrode layer which are stacked; The first electrode layer includes a plurality of first electrodes extending along a first direction; The second electrode layer includes a plurality of second electrodes and third electrodes extending along the second direction, and the second electrodes and the third electrodes are alternately arranged along the first direction; the first direction intersects with the second direction; The first electrode and the second electrode serve as touch electrodes of the touch module, and the first electrode and the third electrode serve as electromagnetic electrodes of the touch module.
2. The touch module according to claim 1, characterized in that: The orthographic projection of the first electrode on the second electrode layer has a first overlapping area with the second electrode, and the length of the first electrode in the first overlapping area in the second direction is smaller than the length of the first electrode in the non-overlapping area in the second direction; Or, the first electrode has a first hollow area, and the first hollow area is located in the first overlapping area; Preferably, the first electrode is in a grid shape, and the area of the first hollow region is larger than the area of one grid.
3. The touch module according to claim 1, characterized in that: The orthographic projection of the first electrode on the second electrode layer has a first overlapping area with the second electrode, and the length of the second electrode in the first overlapping area in the first direction is smaller than the length of the second electrode in the non-overlapping area in the first direction; Or, the second electrode has a second hollow area, and the second hollow area is located in the first overlapping area; Preferably, the second electrode is in a grid shape, and the area of the second hollow region is larger than the area of one grid.
4. The touch module according to claim 1, characterized in that: The orthographic projection of the first electrode on the second electrode layer has a second overlapping area with the third electrode, and the length of the first electrode in the second overlapping area in the second direction is smaller than the length of the first electrode in the non-overlapping area in the second direction; Or, the first electrode has a third hollow area, and the third hollow area is located in the second overlapping area; Preferably, the first electrode is in a grid shape, and the area of the third hollow region is larger than the area of one grid.
5. The touch module according to claim 1, characterized in that: The orthographic projection of the first electrode on the second electrode layer has a second overlapping area with the third electrode, and the length of the third electrode in the second overlapping area in the first direction is smaller than the length of the third electrode in the non-overlapping area in the first direction; Or, the third electrode has a fourth hollow area, and the fourth hollow area is located in the second overlapping area; Preferably, the third electrode is in a grid shape, and the area of the fourth hollow region is greater than the area of one grid.
6. The touch module according to claim 1, characterized in that: The plurality of first electrodes are divided into at least two first electrode channels, and the first electrodes of each first electrode channel are electrically connected; Preferably, the first electrode includes a first mesh portion and two first connecting portions, the two first connecting portions are respectively located on both sides of the first mesh portion, and the first electrodes of each first electrode channel are electrically connected through the first connecting portions on the same side.
7. The touch module according to claim 6, characterized in that: The touch control module further includes a selection circuit, and the selection circuit is connected between two adjacent first electrode channels; Preferably, when the touch electrode is working, the selection circuit is disconnected; Preferably, when the electromagnetic electrode is working, the selection circuit is turned on.
8. The touch module according to claim 1, characterized in that: The touch module further includes an insulating layer, and the insulating layer is located between the first electrode layer and the second electrode layer; Preferably, the touch module further includes a protection layer, and the protection layer is located on a side of the first electrode layer away from the second electrode layer.
9. A display panel, characterized in that: include: substrate; A light-emitting layer is located on the substrate; A thin film encapsulation layer is located on a side of the light-emitting layer away from the substrate; the thin film encapsulation layer comprises a first encapsulation layer, a second encapsulation layer and a third encapsulation layer stacked together; In the touch control module according to any one of claims 1 to 7, the first electrode layer is located on a side of the third encapsulation layer away from the second encapsulation layer, and the second electrode layer is located between the first encapsulation layer and the second encapsulation layer.
10. A display module, characterized in that: include: Display panel; as well as The touch module according to any one of claims 1 to 8, wherein the touch module is located on the display panel.