Grid-type touch screen assembly and electronic device

Abstract

The present invention provides a grid-type touch screen assembly and an electronic device, and relates to the technical field of touch screens. The grid-type touch screen assembly comprises an ITO layer, an insulating layer and a metal layer, the ITO layer comprises a plurality of first strip layers and a plurality of second strip layers, the first strip layers and the second strip layers are cross-arranged, the second strip layers separate each first strip layer into a plurality of first units that are not connected to each other, the insulating layer is arranged on the ITO layer to avoid short circuits between the first strip layers and the second layers, the metal layer comprises a plurality of first connecting lines and a second connecting line, the first connecting lines and the second connecting lines are cross-arranged to form a grid of a preset shape, and by forming a grid on the internal metal layer, the grid-type touch screen assembly displays a grid that can be used for Chinese character practice, replacing paper Chinese character practice copybooks, etc., which can be reused, save space and are easy to carry, are environmentally friendly and energy-saving, and are more friendly to the ecological environment.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screens, and in particular to a grid-type touch screen assembly and an electronic device. Background Art

[0002] Calligraphy is the essence of traditional Chinese culture. Practicing calligraphy can cultivate aesthetics and improve cultural accomplishment. Traditional paper Chinese character practice stickers are in the shape of a grid, and the four sides of the grid are used to assist practitioners to write Chinese characters in the grid with correct pronunciation. Existing copybooks for practicing Chinese writing are mostly paper copybooks, which have the disadvantages of wasting materials and polluting the environment. They are also inconvenient to carry and cannot be reused.

[0003] Therefore, the touch screen can be made into a grid shape similar to paper practice stickers and assembled into products such as flat panel displays, which can replace paper practice stickers in the field of Chinese character practice, thereby achieving the purpose of practicing Chinese characters. Summary of the invention

[0004] In view of this, an object of an embodiment of the present invention is to provide a grid-type touch display screen assembly and an electronic device, so as to provide a grid-type display device that can be used for practicing Chinese character writing.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A grid-type touch screen component, the grid-type touch screen component includes an ITO layer, an insulating layer and a metal layer, the ITO layer includes a plurality of first stripe layers and a plurality of second stripe layers, the first stripe layers and the second stripe layers are cross-arranged, the second stripe layers separate each of the first stripe layers into a plurality of first units that are not connected to each other, the insulating layer is arranged on the ITO layer to avoid a short circuit between the first stripe layers and the second stripe layers, the metal layer includes a plurality of first connecting wires and second connecting wires, the first connecting wires and the second connecting wires are cross-arranged to form a grid, the first connecting wires are arranged on the insulating layer, the first connecting wires electrically connect a plurality of first units that are not connected to each other in each first stripe layer, the second connecting wires are arranged on the second layer, and the second connecting wires are disconnected from the first connecting wires to prevent a short circuit.

[0007] Furthermore, the first connecting lines and the second connecting lines form a preset grid shape.

[0008] Furthermore, the width of the first connecting line and the second connecting line is greater than 20 micrometers.

[0009] Furthermore, the grid-type touch screen assembly also includes a substrate, and the ITO layer is coated on the substrate.

[0010] Furthermore, the substrate is one of a glass substrate, a plastic substrate or a resin substrate.

[0011] Furthermore, the grid-type touch screen assembly also includes a passivation layer, and the passivation layer covers the metal layer.

[0012] Furthermore, the grid-type touch screen assembly further includes a glass cover plate, and the glass cover plate is adhered to the passivation layer via a first adhesive layer.

[0013] Furthermore, the first adhesive layer is OCA adhesive.

[0014] Furthermore, the grid-type touch screen assembly also includes a flexible circuit board, and the flexible circuit board includes a plurality of connecting wires, each connecting wire is correspondingly connected to a first layer or a second layer to export the signal sensed by the ITO layer.

[0015] An electronic device comprises a device body and a grid-type touch screen component, wherein the grid-type touch screen component comprises an ITO layer, an insulating layer and a metal layer, wherein the ITO layer comprises a plurality of first stripe layers and a plurality of second stripe layers, wherein the first stripe layers and the second stripe layers are cross-arranged, and the second stripe layers separate each of the first stripe layers into a plurality of first units which are not connected to each other, and the insulating layer is arranged on the ITO layer to avoid a short circuit between the first stripe layers and the second stripe layers, and the metal layer comprises a plurality of first connecting wires and second connecting wires, wherein the first connecting wires and the second connecting wires are cross-arranged to form a grid, the first connecting wires are arranged on the insulating layer, and the first connecting wires electrically connect a plurality of first units which are not connected to each other in each first stripe layer, and the second connecting wires are arranged on the second layer, and the second connecting wires are disconnected from the first connecting wires to prevent a short circuit, and the grid-type touch screen component is arranged on the device body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a grid-type touch screen assembly and an electronic device, wherein the grid-type touch screen assembly comprises an ITO layer, an insulating layer and a metal layer, wherein the ITO layer comprises a plurality of first strip layers and a plurality of second strip layers, wherein the first strip layers and the second strip layers are arranged crosswise, wherein the second strip layers separate each of the first strip layers into a plurality of first units which are not connected to each other, wherein the insulating layer is arranged on the ITO layer to avoid short circuits between the first strip layers and the second strip layers, wherein the metal layer comprises a plurality of first connecting wires and a second connecting wire, wherein the first connecting wires and the second connecting wires are arranged crosswise to form a grid, wherein the first connecting wires are arranged on the insulating layer, wherein the first connecting wires electrically connect a plurality of first units which are not connected to each other in each first strip layer, wherein the second connecting wires are arranged on the second strip layer between the two first connecting wires, and wherein the second connecting wires are disconnected from the first connecting wires to prevent short circuits. By forming a grid on the internal metal layer, the grid-type touch screen assembly displays a grid which can be used for Chinese character practice, replacing paper Chinese character practice copybooks, etc., which can be reused, saves space, is easy to carry, is environmentally friendly and energy-saving, and is more friendly to the ecological environment.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 A schematic diagram of the stacking structure of a grid-type touch screen provided by the present invention is shown.

[0021] Figure 2 A schematic diagram of the device after forming the ITO layer is shown.

[0022] Figure 3 Shows Figure 2 Schematic enlargement of the middle V region.

[0023] Figure 4 A schematic diagram of the device after forming an insulating layer is shown.

[0024] Figure 5 Shows Figure 4 Schematic enlargement of region VI.

[0025] Figure 6 A schematic diagram of the device after forming a metal layer is shown.

[0026] Figure 7 Shows Figure 6 Schematic enlargement of region VII.

[0027] Figure 8 A schematic diagram of an electronic device is shown.

[0028] Icon: 100-grid touch screen assembly; 110-substrate; 120-ITO layer; 121-first layer; 1211-first unit; 123-second layer; 130-insulating layer; 140-metal layer; 141-first connecting line; 143-second connecting line; 150-passivation layer; 160-first adhesive layer; 170-glass cover; 10-electronic device; 200-device body. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0030] 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.

[0031] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the 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, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0033] In the description of the present invention, it should also 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 that there is any such actual relationship or order between these entities or operations. The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] The existing capacitive touch screen adopts the traditional touch structure process. Because a very thin line will appear in the touch structure when the Metal Bridge is formed, the conventional solution is to add a Metal Invisible Layer (IM) process to fade the thin line. However, this embodiment does the opposite, making the Metal Bridge thin line more obvious and forming the required grid shape, so that the touch screen assembly can be used for Chinese character writing practice.

[0036] First embodiment

[0037] See also Figure 1 , this embodiment provides a grid-type touch screen assembly 100. The grid-type touch screen assembly 100 includes a substrate 110, an indium tin oxide film layer 120 (Indium Tin Oxides, ITO), an insulating layer 130, a metal layer 140, a passivation layer 150 and a glass cover 170. The ITO layer 120, the insulating layer 130, the metal layer 140, the passivation layer 150 and the glass cover 170 are sequentially arranged on the substrate 110.

[0038] The substrate 110 may be a glass substrate 110, a plastic substrate 110 or a substrate 110 made of a resin material. The substrate 110 is used to provide support for the grid-type touch screen assembly 100.

[0039] In this embodiment, the substrate 110 is a plain glass substrate 110, and the ITO layer 120 is disposed on the glass substrate 110. For example, a tin oxide transparent conductive film can be disposed on the surface of the glass substrate 110 by a sputtering process. Then, a yellow light process is used to make the ITO layer 120 show a preset pattern.

[0040] See also Figure 2 In this embodiment, the ITO layer 120 may adopt a diamond design, and the ITO layer 120 includes a plurality of first stripe layers 121 and a plurality of second stripe layers 123. Figure 3 , the first strip layers 121 and the second strip layers 123 are cross-arranged to form a grid. The direction of the first strip layer 121 is the X direction, and the direction of the second strip layer 123 is the Y direction. A plurality of first strip layers 121 are evenly distributed along the Y direction, and a plurality of second strip layers 123 are evenly distributed along the X direction. It should be noted that, in this embodiment, the X direction and the Y direction are two directions perpendicular to each other, but in other embodiments of the present invention, they can also be two directions at any angle.

[0041] The second stripe layer 123 is a continuous stripe-shaped tin oxide transparent conductive film in the Y direction, and the second stripe layer 123 separates each of the first stripe layers 121 into a plurality of mutually unconnected first units 1211. The first stripe layers 121 and the second stripe layers 123 are arranged crosswise to form a grid.

[0042] In this embodiment, the first strip layer 121 and the second strip layer 123 are both arranged in a plurality of rhombus shapes, but are not limited thereto. That is, the first strip layer 121 is formed by arranging a plurality of rhombus patterns in the X direction, and the second strip layer 123 is formed by arranging a plurality of rhombus patterns in the Y direction. To achieve accurate detection, the length of the diagonal of the rhombus pattern is 4 to 6 mm.

[0043] See also Figure 4 The insulating layer 130 is disposed on the ITO layer 120 , and is used to isolate the first strip layer 121 in the X direction from the second strip layer 123 in the Y direction of the ITO layer 120 , so as to prevent the first strip layer 121 and the second strip layer 123 from being short-circuited.

[0044] See also Figure 5 The insulating layer 130 is coated on the ITO layer 120 and formed into a preset shape through exposure, development and other processes. For example, in this embodiment, the insulating layer 130 is disposed at the intersection of the first strip layer 121 and the second strip layer 123, and an insulating material is disposed at each intersection to prevent the first unit 1211 of the first strip layer 121 from being short-circuited with the second strip layer 123.

[0045] See also Figure 6The metal layer 140 is disposed on the insulating layer 130. The metal layer 140 is used to form a grid structure for practicing Chinese characters, such as a nine-square grid. The metal layer 140 includes a plurality of first connecting lines 141 and a plurality of second connecting lines 143. The arrangement direction of the first connecting lines 141 is parallel to the arrangement direction of the first layer 121. The arrangement direction of the second connecting lines 143 is parallel to the arrangement direction of the second layer 123.

[0046] See also Figure 7 The first connecting line 141 is a continuous and complete metal line. The first connecting line 141 connects multiple unconnected diamond patterns of the first strip layer 121, so that the first strip layer 121 forms a complete and continuous tin oxide transparent conductive film strip layer.

[0047] The plurality of second connection lines 143 are used to form a grid for practicing Chinese character writing with the plurality of first connection lines 141. The second connection lines 143 are arranged on the second strip layer 123. In this embodiment, the second connection lines 143 are divided into a plurality of short lines by the first connection lines 141, each short line is arranged on the second strip layer 123 between two adjacent first connection lines 141, and each short line is disconnected from two adjacent first connection lines 141, thereby preventing the first connection lines 141 and the second connection lines 143 from being short-circuited, resulting in a short-circuit between the first strip layer 121 and the second strip layer 123.

[0048] The first connection lines 141 and the second connection lines 143 form a grid, and can also form other preset shapes, such as a U-shaped grid. The widths of the first connection lines 141 and the second connection lines 143 are both greater than 20 microns to ensure that the grid formed by the first connection lines 141 and the second connection lines 143 can be displayed on the touch screen in a manner that can be distinguished by the naked eye.

[0049] It should be noted that when the grid formed by the first connecting lines 141 and the second connecting lines 143 forms other shapes, the widths of the first connecting lines 141 and the second connecting lines 143 can be set as needed, so that the width of the connecting lines to be displayed is larger than the width recognizable to the naked eye, and the width of the connecting lines to be hidden is smaller than the width recognizable to the naked eye.

[0050] The passivation layer 150 is used to coat the device structure after the metal layer 140 is formed, so that the device structure forms a flat surface. On the other hand, it plays an effective protective role on the ITO layer 120, the insulating layer 130, the metal layer 140, etc.

[0051] The passivation layer 150 may be made of materials such as Si and SiO 2 , and the passivation layer 150 is formed by coating Si, SiO 2 and other materials on the device structure after the metal layer 140 is formed.

[0052] The grid-type touch screen assembly 100 also includes a flexible printed circuit (FPC), which includes multiple connecting wires, each of which is connected to a first layer 121 or a second layer 123, so that the electrical signal received by the first layer 121 or the second layer 123 is transmitted to a chip through the FPC, and the chip processes the signal to obtain touch information.

[0053] The FPC is bonded to the metal layer 140 via an anisotropic conductive film (ACF).

[0054] The glass cover plate 170 is attached to the passivation layer 150 through the first adhesive layer 160, and the first adhesive layer 160 can be made of OCA (Optically Clear Adhesive) optical adhesive. The glass cover plate 170 is covered on the passivation layer 150 to prevent water and dust, and prevent the ITO layer 120 and the metal layer 140 from being corroded and damaged.

[0055] Second embodiment

[0056] This embodiment provides an electronic device 10. Figure 8 The electronic device 10 includes a device body 200 and a grid-type touch screen assembly 100, and the grid-type touch screen assembly 100 is disposed on the device body 200. The grid-type touch screen assembly 100 includes a grid for practicing Chinese character writing, and the electronic device 10 can be used to practice Chinese character writing, thereby replacing paper copybooks.

[0057] It should be noted that the structural composition and basic principle of the grid-type touch screen assembly 100 provided in this embodiment are the same as those of the grid-type touch screen assembly 100 provided in the first embodiment, and will not be described in detail in this embodiment.

[0058] In summary, the present invention provides a grid-type touch screen assembly and an electronic device, wherein the grid-type touch screen assembly comprises an ITO layer, an insulating layer and a metal layer, wherein the ITO layer comprises a plurality of first strip layers and a plurality of second strip layers, wherein the first strip layers and the second strip layers are arranged crosswise, wherein the second strip layers separate each of the first strip layers into a plurality of first units that are not connected to each other, wherein the insulating layer is arranged on the ITO layer to avoid short circuits between the first strip layers and the second strip layers, wherein the metal layer comprises a plurality of first connecting wires and a second connecting wire, wherein the first connecting wires and the second connecting wires are arranged crosswise to form a grid, wherein the first connecting wires are arranged on the insulating layer, wherein the first connecting wires electrically connect a plurality of first units that are not connected to each other in each first strip layer, wherein the second connecting wires are arranged on the second strip layer between the two first connecting wires, and wherein the second connecting wires are disconnected from the first connecting wires to prevent short circuits. By forming a grid on the internal metal layer, the grid-type touch screen assembly displays a grid that can be used for Chinese character practice, replacing paper Chinese character practice copybooks, etc., which can be reused, saves space, is easy to carry, is environmentally friendly and energy-saving, and is more friendly to the ecological environment.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grid-type touch screen assembly, characterized in that: The grid-type touch screen component includes an ITO layer, an insulating layer and a metal layer, the ITO layer includes a plurality of first strip layers and a plurality of second strip layers, the first strip layers and the second strip layers are cross-arranged, the second strip layers separate each of the first strip layers into a plurality of first units that are not connected to each other, the insulating layer is arranged on the ITO layer to avoid a short circuit between the first strip layers and the second strip layers, the metal layer includes a plurality of first connecting lines and second connecting lines, the first connecting lines and the second connecting lines are cross-arranged to form a grid, the first connecting lines are arranged on the insulating layer, the first connecting lines electrically connect a plurality of first units that are not connected to each other in each first strip layer, the second connecting lines are arranged on the second layer between two adjacent first connecting lines, and the second connecting lines are disconnected from the first connecting lines to prevent a short circuit.

2. The grid-type touch screen assembly according to claim 1, wherein: The first connection lines and the second connection lines form a preset grid shape.

3. The grid-type touch screen assembly according to claim 1, wherein: The width of the first connecting line and the second connecting line is greater than 20 micrometers.

4. The grid-type touch screen assembly according to claim 1, wherein: The grid-type touch screen assembly also includes a substrate, and the ITO layer is coated on the substrate.

5. The grid-type touch screen assembly according to claim 4, wherein: The substrate is one of a glass substrate, a plastic substrate or a resin substrate.

6. The grid-type touch screen assembly according to claim 1, wherein: The grid-type touch screen assembly further includes a passivation layer, and the passivation layer covers the metal layer.

7. The grid-type touch screen assembly according to claim 6, wherein: The grid-type touch screen assembly further includes a glass cover plate, and the glass cover plate is attached to the passivation layer via a first adhesive layer.

8. The grid-type touch screen assembly according to claim 7, wherein: The first adhesive layer is OCA adhesive.

9. The grid-type touch screen assembly according to claim 1, wherein: The grid-type touch screen assembly also includes a flexible circuit board, and the flexible circuit board includes a plurality of connecting wires, each connecting wire is correspondingly connected to a first layer or a second layer to derive the signal sensed by the ITO layer.

10. An electronic device, characterized in that: The electronic device comprises a device body and a grid-type touch screen assembly as claimed in any one of claims 1 to 9, wherein the grid-type touch screen assembly is arranged on the device body.

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