Electromagnetic capacitance integrated high-transmittance screen and electronic equipment

Abstract

The utility model relates to the technical field of touch control, in particular to an electromagnetic-capacitance integrated high-transparency screen and electronic equipment, the high-transparency screen comprises at least one substrate, and a capacitance pattern layer and an electromagnetic pattern layer or an electromagnetic-capacitance pattern layer are arranged on the substrate. The capacitance pattern layer and the electromagnetic pattern layer or the electromagnetic capacitance pattern layer are arranged on one side or two opposite sides of the substrate. According to the utility model, the capacitance pattern layer and the electromagnetic pattern layer are arranged on the substrate, or the electromagnetic capacitance pattern layer is arranged on the substrate, so that two functions of electromagnetic touch and capacitance touch are combined on one screen, the manufacturing process is simplified, the cost is reduced, the touch screen is transparent and attractive, various structures can be matched, and different customers and different application requirements are met; meanwhile, roll-to-roll impressing and other production processes can be adopted, the manufacturing efficiency is high, and the requirement for batch production can be met.

Description

Technical Field

[0001] The utility model relates to the field of touch technology, in particular to an electromagnetic capacitor integrated high-transmittance screen and electronic equipment. Background Art

[0002] With the development of technology, people have higher requirements for electromagnetic pens and capacitive touch products such as professional drawing tablets and financial signature pads. In addition to maintaining the requirements for their functions, they also have higher requirements for the appearance and weight of electronic equipment.

[0003] Touch screens include resistive touch screens, capacitive touch screens, and electromagnetic touch screens. Each touch technology has its own advantages and disadvantages. Therefore, hybrid touch technology is now widely used, that is, two or more touch technologies are used in a touch screen to achieve the purpose of complementing the advantages and disadvantages of different touch technologies, such as mixing capacitive touch and electromagnetic touch.

[0004] When capacitive touch and electromagnetic touch are used together, the traditional design is to separate the electromagnetic screen and the capacitive screen, requiring two screens, which has high overall costs and limited applications. Utility Model Content

[0005] In view of this, the present invention provides an electromagnetic-capacitive integrated high-transmittance screen and electronic device, which can combine the two functions of electromagnetic touch and capacitive touch on one screen. The transparent appearance is beautiful, and multiple laminations are reduced, the process is simplified, and the cost is reduced. At the same time, it can be used with a standard display screen, and the placement position is not restricted, and it can be placed under or on the display screen.

[0006] The utility model provides an electromagnetic capacitor integrated high-transmittance screen, comprising at least one substrate, on which a capacitor pattern layer and an electromagnetic pattern layer or an electromagnetic capacitor pattern layer are arranged, and the capacitor pattern layer and the electromagnetic pattern layer or the electromagnetic capacitor pattern layer are arranged on one side or two opposite sides of the substrate.

[0007] Optionally, the capacitor pattern layer includes a first capacitor channel layer and a second capacitor channel layer that are insulated and isolated from each other, the first capacitor channel layer includes a plurality of capacitor sensing channels extending along a first direction, and the second capacitor channel layer includes a plurality of capacitor sensing channels extending along a second direction;

[0008] The electromagnetic pattern layer includes a first electromagnetic channel layer and a second electromagnetic channel layer that are insulated and isolated from each other. The first electromagnetic channel layer includes a plurality of electromagnetic induction channels extending along a first direction, and the second electromagnetic channel layer includes a plurality of electromagnetic induction channels extending along a second direction.

[0009] Optionally, the electromagnetic and capacitor integrated high-transmittance screen further includes two substrates, namely a first substrate and a second substrate, the electromagnetic pattern layer is arranged on the first substrate, and the capacitor pattern layer is arranged on a side of the second substrate away from the first substrate.

[0010] Optionally, the capacitor pattern layer and the electromagnetic pattern layer are respectively arranged on two opposite sides of the substrate.

[0011] Optionally, the electromagnetic capacitor pattern layer includes a first electromagnetic capacitor channel layer and a second electromagnetic capacitor channel layer that are insulated and isolated from each other, the first electromagnetic capacitor channel layer includes a plurality of electromagnetic capacitor groups extending along a first direction, the second electromagnetic capacitor channel layer includes a plurality of electromagnetic capacitor groups extending along a second direction, and each of the electromagnetic capacitor groups includes a capacitive sensing channel and two electromagnetic induction channels.

[0012] Optionally, the first electromagnetic capacitor channel layer and the second electromagnetic capacitor channel layer are arranged on the same side of the substrate, or are respectively arranged on two opposite sides of the substrate.

[0013] Optionally, the electromagnetic capacitor integrated high-transmittance screen further includes two substrates, namely a first substrate and a second substrate, the first electromagnetic capacitor channel layer is arranged on one side of the first substrate, and the second electromagnetic capacitor channel layer is arranged on a side of the second substrate away from the first substrate.

[0014] Optionally, the capacitance sensing channel width of the capacitance pattern layer or the electromagnetic capacitance pattern layer is 4mm to 8mm, and the distance between two adjacent capacitance sensing channels is 4mm to 8mm; the electromagnetic induction channel width of the electromagnetic pattern layer or the electromagnetic capacitance pattern layer is 1mm to 8mm, and the distance between two adjacent electromagnetic induction channels is 2mm to 8mm.

[0015] Optionally, grid grooves are provided in the sensing channels of the capacitor pattern layer and the electromagnetic pattern layer or the electromagnetic capacitor pattern layer, and the grid grooves are filled with metal, the metal line width d is 2μm to 15μm, and the line height h is 2μm to 8μm; the sensing channel shape is strip, diamond or U-shaped.

[0016] The utility model also provides an electronic device, comprising the electromagnetic capacitor integrated high-transmittance screen as described above.

[0017] Compared with the prior art, the electromagnetic capacitor integrated high-transmittance screen and electronic device provided by the embodiments of the present invention have the following advantages:

[0018] By setting a capacitor pattern layer and an electromagnetic pattern layer on the substrate, or setting an electromagnetic capacitor pattern layer on the substrate, the two functions of electromagnetic touch and capacitive touch can be combined on one screen, simplifying the process and thus reducing costs. It is transparent and beautiful, and can have a variety of structural combinations to meet the needs of different customers and different applications. At the same time, the circuit can adopt roll-to-roll embossing, yellow copper process, printing process or line printing and other production processes, with high production efficiency to meet the needs of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 Schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 1;

[0021] Figure 2 is a top view of the two electromagnetic capacitor pattern layers in Example 1;

[0022] Figure 3 is a cross-sectional view of the sensing channel in Examples 1 to 8;

[0023] Figure 4 is a top view of a diamond-shaped sensing channel in other embodiments;

[0024] Figure 5 is a top view of a U-shaped sensing channel in another embodiment;

[0025] Figure 6 This is a schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 2;

[0026] Figure 7 Schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 3;

[0027] Figure 8 Schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in the fourth embodiment;

[0028] Figure 9 is a top view of the two capacitor pattern layers in the fourth embodiment;

[0029] Figure 10 is a top view of two electromagnetic pattern layers in Example 4;

[0030] Figure 11 Schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 5;

[0031] Figure 12 Schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 6;

[0032] Figure 13 It is a schematic diagram of the layer structure of the electromagnetic capacitor integrated high-transmittance screen in Example 7.

[0033] In the figure: substrate 1, first substrate 11, second substrate 12;

[0034] Capacitor pattern layer 2, first capacitor channel layer 21, second capacitor channel layer 22, capacitor sensing channel 200;

[0035] Electromagnetic pattern layer 3, first electromagnetic channel layer 31, second electromagnetic channel layer 32, electromagnetic induction channel 300;

[0036] Electromagnetic capacitor pattern layer 4, first electromagnetic capacitor channel layer 41, second electromagnetic capacitor channel layer 42, electromagnetic capacitor group 400;

[0037] Cover plate 5 , optical adhesive layer 6 , binding pin 7 , first electromagnetic jumper 81 , second electromagnetic jumper 82 . DETAILED DESCRIPTION

[0038] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0039] Unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0040] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0041] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0042] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0043] Example 1

[0044] Please refer to Figure 1 In an embodiment of the utility model, an electromagnetic capacitor integrated high-transmittance screen is provided, comprising a substrate 1, two electromagnetic capacitor pattern layers 4, and a cover plate 5 located on one side of the substrate 1. The substrate 1 can be made of materials such as PET or PC. An electromagnetic capacitor pattern layer 4 is provided on each of the opposite sides of the substrate 1, wherein one electromagnetic capacitor pattern layer 4 is located between the substrate 1 and the cover plate 5, and the electromagnetic capacitor pattern layer 4 is a first electromagnetic capacitor channel layer 41, and the other is a second electromagnetic capacitor channel layer 42; the substrate 1 insulates and isolates the first electromagnetic capacitor channel layer 41 from the second electromagnetic capacitor channel layer 42. An optical adhesive layer 6 is provided between the first electromagnetic capacitor channel layer 41 and the cover plate 5.

[0045] Please refer to Figure 2 The first electromagnetic capacitor channel layer 41 includes a plurality of electromagnetic capacitor groups 400 extending along a first direction X; the second electromagnetic capacitor channel layer 42 includes a plurality of electromagnetic capacitor groups 400 extending along a second direction Y; each electromagnetic capacitor group 400 includes a capacitive sensing channel 200 and two electromagnetic induction channels 300. In both the first electromagnetic capacitor channel layer 41 and the second electromagnetic capacitor channel layer 42, two electromagnetic induction channels 300 are arranged between two adjacent capacitive sensing channels 200. In the same electromagnetic capacitor channel layer, the electromagnetic induction channels 300 in different electromagnetic capacitor groups 400 are electrically connected through wires. The wires connecting the electromagnetic induction channels 300 in different electromagnetic capacitor groups 400 extending along the first direction X are arranged in the first electromagnetic jumper 81; the wires connecting the electromagnetic induction channels 300 in different electromagnetic capacitor groups 400 extending along the second direction Y are arranged in the second electromagnetic jumper 82; the first electromagnetic jumper

[0046] The capacitive sensing channel 200 and the electromagnetic sensing channel 300 extending along the first direction X, and the capacitive sensing channel 200 and the electromagnetic sensing channel 300 extending along the second direction Y are both connected to the binding pin 7 through wires.

[0047] In this embodiment, electromagnetic induction channels 300 form a loop coil through jumper wires, generating an electromagnetic field, thereby realizing the electromagnetic pen function. Capacitive sensing channels 200 are arranged in intervals, with upper and lower layers of capacitive sensing channels 200 intersecting perpendicularly, generating mutual capacitance or self-capacitance to realize capacitive touch. This also solves the problem of wire routing leading to a large bezel, achieving the requirement for a narrow bezel.

[0048] Please refer to Figure 2 In each electromagnetic capacitor pattern layer 4, all sensing channels (including the capacitive sensing channels 200 and the electromagnetic sensing channels 300) are parallel to each other and spaced apart. The sensing channels in different electromagnetic capacitor pattern layers 4 are perpendicular to each other, that is, the first direction X is perpendicular to the second direction Y.

[0049] Please refer to Figure 2 Each capacitive sensing channel 200 in the electromagnetic capacitor pattern layer 4 has a width w1 of 4 mm to 8 mm; the distance l1 between two adjacent capacitive sensing channels 200 in each electromagnetic capacitor pattern layer 4 is 4 mm to 8 mm. Each electromagnetic sensing channel 300 in the electromagnetic capacitor pattern layer 4 has a width w2 of 1 mm to 8 mm; the distance l2 between two adjacent electromagnetic sensing channels 300 in each electromagnetic capacitor pattern layer 4 is 2 mm to 8 mm.

[0050] Please refer to Figure 2 and Figure 3 A grid groove is provided in each sensing channel of the electromagnetic capacitor pattern layer 4, and the grid groove is filled with metal. The metal line width d is 2μm to 15μm, and the line height h is 2μm to 8μm. Exemplarily, in this embodiment, the sensing channel is strip-shaped.

[0051] Please refer to Figure 4 In other embodiments, the shape of the sensing channel may also be diamond-shaped.

[0052] Please refer to Figure 5 In other embodiments, the shape of the sensing channel may also be U-shaped.

[0053] Example 2

[0054] Please refer to Figure 6 This embodiment provides another electromagnetic capacitor integrated high-transmittance screen based on the first embodiment, the difference being that the two electromagnetic capacitor pattern layers 4 are arranged on the same side of the substrate 1 and on the side of the substrate 1 facing the cover plate 5.

[0055] An adhesive is provided between the two electromagnetic capacitor pattern layers 4 to achieve separation and insulation effects; an optical adhesive layer 6 is provided between the electromagnetic capacitor pattern layer 4 and the cover plate 5 .

[0056] Example 3

[0057] Please refer to Figure 7This embodiment provides another electromagnetic capacitor integrated high-transmittance screen based on the first embodiment, with the difference being that the number of substrates 1 is increased to two, namely the first substrate 11 and the second substrate 12, the first electromagnetic capacitor channel layer 41 is arranged on one side of the first substrate 11, and the second electromagnetic capacitor channel layer 42 is arranged on the side of the second substrate 12 away from the first substrate 11.

[0058] Please refer to Figure 7 A first electromagnetic capacitor channel layer 41 is provided on the side of the first substrate 11 facing the second substrate 12, and an optical adhesive layer 6 is provided between the first electromagnetic capacitor pattern layer 41 and the second substrate 12. A second electromagnetic capacitor channel layer 42 is provided between the second substrate 12 and the cover plate 5, and an optical adhesive layer 6 is provided between the second electromagnetic capacitor channel layer 42 and the cover plate 5.

[0059] Example 4

[0060] Please refer to Figure 8 The present invention provides another embodiment of an electromagnetic and capacitor integrated high-transmittance screen, comprising a substrate 1, two capacitor pattern layers 2, two electromagnetic pattern layers 3, and a cover plate 5 located on one side of the substrate 1. The capacitor pattern layers 2 and the electromagnetic pattern layers 3 are disposed on opposite sides of the substrate 1. The substrate 1 can be made of materials such as PET or PC.

[0061] Please refer to Figure 8 Two capacitor pattern layers 2, namely, a first capacitor channel layer 21 and a second capacitor channel layer 22, are provided on the side of the substrate 1 facing the cover plate 5; two electromagnetic pattern layers 3, namely, a first electromagnetic channel layer 31 and a second electromagnetic channel layer 32, are provided on the side of the substrate 1 facing away from the cover plate 5; adhesive is provided between the two capacitor pattern layers 2 and between the two electromagnetic pattern layers 3 to separate and insulate the circuits; an optical adhesive layer 6 is provided between the capacitor pattern layer 2 and the cover plate 5.

[0062] Please refer to Figure 9 The first capacitor channel layer 21 includes multiple parallel, spaced-apart capacitor sensing channels 200 extending along a first direction X. The second capacitor channel layer 22 includes multiple parallel, spaced-apart capacitor sensing channels 200 extending along a second direction Y. The first direction X is perpendicular to the second direction Y. Each capacitor sensing channel 200 in the capacitor pattern layer 2 has a width w1 of 4 mm to 8 mm. The distance l1 between adjacent capacitor sensing channels 200 in each capacitor pattern layer 2 is 4 mm to 8 mm. The capacitor sensing channel wiring connections in this embodiment are the same as those in Example 1.

[0063] Please refer to Figure 10The first electromagnetic channel layer 31 includes multiple electromagnetic induction channels 300 spaced apart in parallel and extending along a first direction X. The second electromagnetic channel layer 32 includes multiple electromagnetic induction channels 300 spaced apart in parallel and extending along a second direction Y. The width w2 of each electromagnetic induction channel 300 in the electromagnetic pattern layer 3 ranges from 1 mm to 8 mm. The spacing l2 between adjacent electromagnetic induction channels 300 in each electromagnetic pattern layer 3 ranges from 2 mm to 8 mm. The electromagnetic induction channel circuit connections in this embodiment are the same as those in Example 1.

[0064] Please refer to Figure 2 , each sensing channel of the capacitor pattern layer 2 and the electromagnetic pattern layer 3 is provided with a grid groove, the grid groove is filled with metal, the metal line width d is 2μm to 15μm, and the line height h is 2μm to 8μm; for example, in this embodiment, the sensing channel is in the shape of a strip. Please refer to Figure 4 and Figure 5 In other embodiments, the shape of the sensing channel may also be diamond-shaped or U-shaped.

[0065] Example 5

[0066] Please refer to Figure 11 This embodiment provides another electromagnetic capacitor integrated high-transmittance screen based on the fourth embodiment, the difference being that the positions of the capacitor pattern layer 2 and the electromagnetic pattern layer 3 are interchanged.

[0067] Example 6

[0068] Please refer to Figure 12 This embodiment provides another electromagnetic and capacitor integrated high-transmittance screen based on the fourth embodiment, the difference being that the number of substrates 1 is increased to two, namely a first substrate 11 and a second substrate 12, the electromagnetic pattern layer 3 is arranged on the first substrate 11, and the capacitor pattern layer 2 is arranged on the side of the second substrate 12 away from the first substrate 11.

[0069] Please refer to Figure 12 The electromagnetic pattern layer 3 is arranged on the side of the first substrate 11 facing the second substrate 12, and an optical adhesive layer 6 is arranged between the electromagnetic pattern layer 3 and the second substrate 12; the capacitor pattern layer 2 is arranged on the side of the second substrate 12 facing the cover plate 5, and an optical adhesive layer 6 is arranged between the capacitor pattern layer 2 and the cover plate 5.

[0070] Example 7

[0071] Please refer to Figure 13 This embodiment provides another electromagnetic capacitor integrated high-transmittance screen based on the sixth embodiment, the difference being that the positions of the capacitor pattern layer 2 and the electromagnetic pattern layer 3 are interchanged.

[0072] Example 8

[0073] This embodiment provides an electronic device including the electromagnetic and capacitive integrated high-transmittance screen provided in the above embodiment. For example, the electronic device may be a television, a teaching blackboard, a computer, etc., which is not limited in this embodiment.

[0074] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic capacitor integrated high-transmittance screen, characterized in that: The invention comprises at least one substrate (1), wherein an electromagnetic capacitor pattern layer (4) is arranged on the substrate (1), wherein the electromagnetic capacitor pattern layer (4) is arranged on one side or two opposite sides of the substrate (1), wherein the electromagnetic capacitor pattern layer (4) comprises a first electromagnetic capacitor channel layer (41) and a second electromagnetic capacitor channel layer (42) which are insulated and isolated from each other, wherein the first electromagnetic capacitor channel layer (41) comprises a plurality of electromagnetic capacitor groups (400) extending along a first direction, and the second electromagnetic capacitor channel layer (42) comprises a plurality of electromagnetic capacitor groups (400) extending along a second direction, wherein each electromagnetic capacitor group (400) comprises a capacitive sensing channel (200) and two electromagnetic sensing channels (300), wherein the first electromagnetic capacitor channel layer (41) and the second electromagnetic capacitor channel layer (42) are arranged on the same side of the substrate (1) or respectively on two opposite sides of the substrate (1), wherein a grid groove is arranged in the sensing channel of the electromagnetic capacitor pattern layer (4), wherein the grid groove is filled with metal, and the line height h is 2 μm to 8 μm.

2. The electromagnetic capacitor integrated high-transmittance screen according to claim 1, characterized in that: The invention comprises two substrates (1), namely a first substrate (11) and a second substrate (12); the first electromagnetic capacitor channel layer (41) is arranged on one side of the first substrate (11); and the second electromagnetic capacitor channel layer (42) is arranged on a side of the second substrate (12) away from the first substrate (11).

3. The electromagnetic capacitor integrated high-transmittance screen according to any one of claims 1-2, characterized in that: The capacitance sensing channel (200) of the electromagnetic capacitance pattern layer (4) has a width of 4 mm to 8 mm, and the spacing between two adjacent capacitance sensing channels (200) is 4 mm to 8 mm; the electromagnetic induction channel (300) of the electromagnetic capacitance pattern layer (4) has a width of 1 mm to 8 mm, and the spacing between two adjacent electromagnetic induction channels (300) is 2 mm to 8 mm.

4. The electromagnetic capacitor integrated high-transmittance screen according to claim 1, characterized in that: The metal line width d is 2 μm to 15 μm; the sensing channel shape is strip, diamond or U-shaped.

5. An electronic device, characterized in that: The invention comprises the electromagnetic capacitor integrated high-transmittance screen as described in any one of claims 1 to 4.

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