Touch module and electronic equipment

Abstract

The embodiment of the utility model provides a touch module and electronic equipment, and relates to the technical field of touch. The touch module comprises a touch piece and a polarizing film, the touch piece comprises a touch film and a connecting area, and the connecting area is arranged on the side edge of the touch film in a protruding mode; the connecting area is used for being connected with a control panel. The polarizing film covers the surface of the touch film and exposes the connecting area. The surface of the touch film is covered with the polarizing film, so that reflection of the metal grid of the touch film can be eliminated, visibility of the metal grid of the touch film is reduced, and attractiveness of the appearance is improved. In addition, the connecting area is arranged outside the attaching area of the touch control piece and the polarizing film, full attaching of the touch control film and the polarizing film can be guaranteed, therefore, the attaching flatness of the touch control film and the polarizing film is guaranteed, and the visibility of a metal grid on the whole face of the touch control film can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch technology field, specifically, touch module and electronic equipment are related to a kind of. BACKGROUND

[0002] Current market for display touch product requirement is higher and higher, consumer also more and more pursues the light and thin of product, also more pursues cost performance.In touch sensor, metal grid touch sensor is one of important solutions.Metal grid touch sensor realizes touch function by metal grid on base material, and is currently widely applied in various touch scenes.

[0003] Metal grid touch sensor is realized based on metal grid, but metal grid has certain grid visibility, directly affects the appearance of sensor, especially the appearance of product with strict appearance requirement. SUMMARY

[0004] The utility model provides a kind of touch module and electronic equipment, it can eliminate the reflection of touch film metal grid, reduce the visibility of touch film metal grid, to improve the aesthetic appearance of appearance;And still can guarantee touch control and polaroid full lamination, to guarantee the flatness of touch control and polaroid lamination.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The embodiment of the utility model provides a kind of touch module, it includes:

[0007] Touch control, the touch control includes touch film and connecting area, the connecting area is protruding in the side edge of the touch film;The connecting area is used to be connected with control panel;

[0008] Polaroid, the polaroid covers the surface of the touch film, and the connecting area is exposed.

[0009] In alternative embodiment, the touch film includes two metal grid layers, each metal grid layer is divided into a plurality of channels, and the channels of two metal grid layers are arranged in each other.

[0010] In alternative embodiment, the metal grid layer includes metal layer, black layer and protection layer arranged in sequence.

[0011] In alternative embodiment, the metal grid layer further includes photoresist layer and catalyst layer, the catalyst layer is arranged on the side of the metal layer away from the black layer, and the photoresist layer is arranged on the side of the catalyst layer away from the metal layer.

[0012] In an optional embodiment, the touch module further comprises an optical adhesive layer, the optical adhesive layer is located between the touch film and the polarized film, and the touch film and the polarized film are fully attached through the optical adhesive layer.

[0013] In an optional embodiment, the optical adhesive layer is an OCA adhesive layer.

[0014] In an optional embodiment, the polarized film comprises a polarized layer and a protective film arranged on both sides of the polarized layer.

[0015] In an optional embodiment, the polarized film is arranged on both sides of the touch film respectively.

[0016] In an optional embodiment, the area of the polarized film is greater than or equal to the area of the touch film.

[0017] The embodiment of the utility model further provides an electronic equipment, including touch carrier and touch module in any of the above-mentioned embodiments, the touch film is arranged on the touch carrier.

[0018] The touch module and the electronic equipment have the following advantages.

[0019] The touch module comprises a touch component and a polarized film, the touch component comprises a touch film and a connecting area, the connecting area is protruded on the side edge of the touch film; the connecting area is used for connecting with a control panel. The polarized film covers the surface of the touch film, and the connecting area is exposed. By covering the polarized film on the surface of the touch film, the reflection of the metal grid of the touch film can be eliminated, the visibility of the metal grid of the touch film is reduced, and the appearance is improved. In addition, by arranging the connecting area outside the bonding area of the touch component and the polarized film, the full bonding of the touch film and the polarized film can be ensured, the flatness of the bonding of the touch film and the polarized film is ensured, and the visibility of the full metal grid of the touch film is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, under the premise of not creating the creative labor, other related drawings can also be obtained according to these drawings.

[0021] Figure 1 It is the schematic diagram of the first visual angle of the touch module provided in the embodiment of the utility model;

[0022] Figure 2 It is the schematic diagram of the second visual angle of the touch module provided in the embodiment of the utility model.

[0023] Icon: 1000 - touch module; 100 - touch control; 110 - touch film; 120 - connecting area; 130 - optical adhesive layer; 200 - polarizing film. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0030] The market requirements for display touch products are increasingly high, and consumers increasingly pursue product thinness and cost performance. In touch sensors, metal mesh touch sensors are one of the important solutions. Metal mesh touch sensors realize touch function through metal mesh on a substrate, and are widely used in various touch scenarios. Metal mesh touch sensors are based on metal mesh, but the metal mesh has certain mesh visibility, which directly affects the appearance of the sensor, especially the appearance of products with strict appearance requirements.

[0031] Based on this, please refer to Figure 1 and Figure 2 The touch module 1000 provided in the embodiments of the present application can effectively improve the technical problems mentioned above. The touch module 1000 can eliminate the reflection of the metal mesh of the touch film 110, reduce the visibility of the metal mesh of the touch film 110, and thus improve the appearance; and can also ensure that the touch control 100 and the polarizing film 200 are fully attached, thereby ensuring the flatness of the touch control 100 and the polarizing film 200, and thus effectively reducing the visibility of the full-surface metal mesh of the touch control 100. The touch module 1000 can be applied to any touch electronic device, and the electronic device with the touch module 1000 also has the same functions as described above, which will not be repeated here.

[0032] The electronic device provided in the embodiments of the present application includes a touch carrier and a touch module 1000, and the touch module is arranged on the touch carrier. The touch carrier can be a screen, an instrument interface, a car window interface, a shop window interface, a wearable device, etc., which is not limited here. The touch film 110 is fully attached to the surface of the touch carrier, converting a non-touch surface into a touch surface, improving user experience, and realizing multi-point touch function.

[0033] Figure 1 A first view of the touch module 1000 provided in the embodiments of the present application is shown in the figure; Figure 2 A second view of the touch module 1000 provided in the embodiments of the present application is shown in the figure. Figure 1 and Figure 2As shown, the touch module 1000 provided in the embodiment includes a touch control 100 and a polarized film 200. The touch control 100 includes a touch film 110 and a connecting area 120, and the connecting area 120 is protruded on the side edge of the touch film 110. The connecting area 120 is used to be connected with a control board. The polarized film 200 covers the surface of the touch film 110, and the connecting area 120 is exposed. The touch film 110 is integrally arranged with the connecting area 120. The polarized film 200 covers the surface of the touch film 110, and the touch film 110 is fully attached with the polarized film 200, and the connecting area 120 is located outside the full-attachment area. The full-attachment refers to the flat attachment between the polarized film 200 and the touch control 100. By covering the surface of the touch film 110 with the polarized film 200, the reflection of the metal grid of the touch film 110 can be eliminated, the visibility of the metal grid of the touch film 110 can be reduced, and thus the appearance can be improved. In addition, by arranging the connecting area 120 outside the attachment area of the touch control 100 and the polarized film 200, the full-attachment of the touch film 110 and the polarized film 200 can be ensured, the flatness of the attachment of the touch film 110 and the polarized film 200 can be ensured, the visibility of the full-surface metal grid of the touch film 110 can be effectively reduced, and a narrow frame can be realized.

[0034] Since the connecting area 120 and the external connecting member have a certain height, the connecting area 120 is clamped between the polarized film 200 and the touch control 100, which affects the flatness of the attachment. Therefore, in the embodiment, the connecting area 120 of the touch module 1000 is protruded on the side edge of the touch film 110, and only the touch film 110 is attached with the polarized film 200. That is, the connecting area 120 extends to the outside of the full-attachment area and is used to be connected with the control board. The connecting area 120 can be directly plugged with the control board, and the connecting area 120 can be connected to the control board through a flexible circuit board (FPC).

[0035] The above-mentioned "full-attachment of the touch film 110 and the polarized film 200" specifically refers to that the area of the polarized film 200 is greater than or equal to the area of the touch film 110. That is, the full-attachment between the touch film 110 and the polarized film 200 can be that the areas of the two are approximately equal to realize the full-point touch of the polarized film 200, or the area of the polarized film 200 is greater than the area of the touch film 110 to realize the partial-area point touch of the polarized film 200.

[0036] The polarized film 200 can be arranged on only one side of the touch film 110. In addition, the side of the touch film 110 without the polarized film 200 can also be arranged with other films, such as a protective film, a shielding film, etc., which is determined according to the structure of the device and the function to be realized, and is not limited herein. Of course, the polarized film 200 can also be arranged on both sides of the touch film 110 to reduce the visibility of the metal grid of the entire touch film 110 and improve the appearance.

[0037] Please refer to Figure 2The touch module 1000 in the embodiment further includes an optical adhesive layer 130, which is located between the touch film 110 and the polarized film 200, and the touch film 110 and the polarized film 200 are fully attached through the optical adhesive layer 130. The optical adhesive is a high polymer substance similar to the optical performance of optical parts and has excellent bonding performance. It can bond two or more optical parts into an optical assembly that can meet the design requirements of the optical path. It is colorless and transparent, with a light transmittance of more than 90% in a specified light wave band, and the refractive index of the cured adhesive is similar to that of the optical element to be bonded. Moreover, the modulus of the adhesive is low, the elongation rate is large after curing, and the shrinkage rate is small after curing, which will not cause changes to the surface of the optical element. It has low moisture absorption, is resistant to cold and hot impact, vibration, oil, solvents, etc., and is resistant to light aging and wet heat aging.

[0038] The optical adhesive layer 130 can be an OCA adhesive layer, and can also be a UV adhesive layer (ultraviolet curing adhesive layer), etc., which is not limited herein. The optical adhesive layer 130 in the embodiment is an OCA adhesive layer. The OCA optical adhesive has high light transmittance, and the light transmittance of the OCA optical adhesive is very high, with a full light transmittance of more than 99%, which can ensure that the light passes through almost without loss, providing a clear visual effect. The OCA optical adhesive also has high adhesion to ensure that it will not fall off or separate during long-term use. In addition, the OCA optical adhesive has a uniform thickness, which can provide a stable spacing to ensure the consistency of the adhesion effect and the full attachment between the two adjacent parts. Moreover, the OCA optical adhesive has long-term stability, and will not have problems such as yellowing, aging, fogging, separation from the bonded surface, and bubbles during long-term use, maintaining the stability and reliability of the material.

[0039] The touch film 110 in the embodiment includes two metal mesh layers, each of which is divided into a plurality of channels, and the channels of the two metal mesh layers are arranged in a cross manner. The metal mesh layer includes a metal layer, a blackening layer, and a protective layer arranged in sequence. The metal mesh layer further includes a photoresist layer and a catalyst layer, and the catalyst layer is arranged on the side of the metal layer away from the blackening layer, and the photoresist layer is arranged on the side of the catalyst layer away from the metal layer. The metal mesh layer can use nanometer copper, or other conductive substances such as nanometer silver. The metal layer is provided with a protective layer, which can use a high molecular coating (OverCoat) or a hard coating (Hard Coat), which can be coated on the metal layer by light curing or thermal curing. The blackening layer is formed on the metal layer to improve the imperceptibility of the metal mesh, thereby enhancing the appearance performance of the touch film 110.

[0040] Of course, the touch film 110 can also include a substrate layer, a first metal mesh layer, a first insulating layer, a second metal mesh layer, a second insulating layer and a display layer which are sequentially stacked. The substrate layer is usually a PET film. The first metal mesh layer is formed by densely arranging wires of conductive metal such as copper and its oxides on the conductive layer of the PET substrate to form a regular-shaped mesh. The first insulating layer is located above the first metal mesh layer and serves the purpose of isolation and protection. The second metal mesh layer is similar to the first metal mesh layer and is located above the first insulating layer. The second insulating layer is located above the second metal mesh layer for further isolation and protection. The display layer contains a number of pixels for displaying images.

[0041] The touch film 110 in the embodiment can be a capacitive touch film, an electromagnetic touch film, an electromagnetic capacitive touch film, etc. The capacitive touch film and the electromagnetic touch film both include two layers of metal mesh, each layer of metal mesh is divided into multiple channels, and the channels of the two layers of metal mesh are arranged in cross. The electromagnetic capacitive touch film can include two layers of metal mesh, each layer of metal mesh is divided into multiple electromagnetic, capacitive channels or multiple common channels, the common channels switch the function (electromagnetic or capacitive) of their channels through a control panel, and the channels of the two layers of metal mesh are arranged in cross.

[0042] The polarizing film 200 can be a linear polarizing film 200 or a circular polarizing film 200. The linear polarizing film 200 allows light waves to pass through in a specific direction, and blocks the part of the light waves that does not conform to the specific direction, thereby eliminating the reflection of the metal mesh and reducing the visibility of the metal mesh. The circular polarizing film 200 is a combination of linear polarization and a quarter-wave plate. The light passes through the linear polarization to become linearly polarized light, and then passes through the quarter-wave plate to become circularly polarized light. Based on similar principles, it can also block the part of the light waves that does not conform to the specific direction, thereby eliminating the reflection of the metal mesh and reducing the visibility of the metal mesh.

[0043] In order to protect the polarizing film 200, the polarizing film 200 in the present embodiment includes a polarizing layer and protective films arranged on both sides of the polarizing layer. The polarizing layer in the present embodiment is a PVA type polarizing sheet (polyvinyl alcohol film (PVA film) + iodine), which is obtained by PVA dyeing stretching. Specifically, iodine is used as a dichroic substance to be adsorbed on a PVA film material, and then the film material is stretched into a thin film in one direction to orient the dichroic substance, thereby obtaining a linear polarizing sheet. In this regard, since iodine is used as a dichroic substance and iodine has a large sublimation property, it is necessary to bond protective films on both sides of the PVA by an adhesive. The protective film is not limited to a triacetate cellulose film (TAC), and can also be a polymethyl methacrylate film (PMMA), a cyclic olefin polymer film (COP), or the like. Of course, the polarizing layer can also be composed of other structures, and the main component thereof is a PVA film. The PVA film is a core material for a polarizing sheet to achieve a polarizing function, and determines key optical indexes such as the polarizing performance, transmittance, and color tone of the polarizing sheet. The TCA film can improve the optical performance and mechanical strength of the entire polarizing layer. The TCA film and the PVA film can be bonded by coating a pressure-sensitive adhesive therebetween. Of course, other films such as a release film, a light-transmitting film, or the like can also be arranged between the polarizing layer and the protective film, which is determined according to actual production and use, and is not limited herein. The light-transmitting film can be a composite material obtained by co-extrusion of COP and PMMA raw materials, which combines the respective advantages of COP and PMMA materials. The PMMA material provides high hardness and weather resistance, and can effectively block most ultraviolet radiation, especially ultraviolet radiation of shorter wavelengths, which helps to protect internal components from damage caused by ultraviolet radiation. The COP material provides high toughness and heat resistance. Of course, the PMMA material can additionally absorb ultraviolet radiation by adding an ultraviolet absorber. The ultraviolet absorber is an organic compound capable of absorbing ultraviolet light, which has a molecular structure containing benzene rings, phenol rings, heterocyclic rings, and the like, and can absorb ultraviolet light in the wavelength range of 200 nm to 400 nm, thereby protecting the PMMA from damage by ultraviolet radiation. Commonly used PMMA ultraviolet absorbers include phenol, phenol amine, benzoic acid, and phenol acetic acid.

[0044] In summary, the touch module 1000 comprises a touch control 100 and a polarized film 200, the touch control 100 comprises a touch film 110 and a connecting area 120, the connecting area 120 is protruded on the side edge of the touch film 110; the connecting area 120 is used for connecting with a control board. The polarized film 200 covers the surface of the touch film 110, and the connecting area 120 is exposed. By covering the surface of the touch film 110 with the polarized film 200, the reflection of the metal grid of the touch film 110 can be eliminated, the visibility of the metal grid of the touch film 110 is reduced, and thus the appearance is improved. In addition, by setting the connecting area 120 outside the bonding area of the touch control 100 and the polarized film 200, the full bonding of the touch film 110 and the polarized film 200 can be ensured, the flatness of the bonding of the touch film 110 and the polarized film 200 is ensured, and the visibility of the whole metal grid of the touch film 110 is effectively reduced.

[0045] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A touch module, characterized in that, The application relates to a touch module (1000) comprising: a touch control (100) comprising a touch control film (110) and a connecting area (120) protruding from a side edge of the touch control film (110), the connecting area (120) being used for connecting with a control panel; a polarized film (200) covering a surface of the touch control film (110) and exposing the connecting area (120); the touch control film (110) and the polarized film (200) are fully attached, and the connecting area (120) is located outside the fully attached area; the touch control film (110) comprises two metal mesh layers, each of which is divided into multiple channels, and the channels of the two metal mesh layers are arranged in a cross manner; the metal mesh layer comprises a metal layer, a blackening layer and a protective layer which are sequentially arranged. 2.The touch module according to claim 1, characterized in that, The metal mesh layer further comprises a photoresist layer and a catalyst layer, the catalyst layer is arranged on a side of the metal layer away from the blackening layer, and the photoresist layer is arranged on a side of the catalyst layer away from the metal layer. 3.The touch module according to claim 1, characterized in that, The touch module (1000) further comprises an optical adhesive layer (130), the optical adhesive layer (130) is located between the touch control film (110) and the polarized film (200), and the touch control film (110) and the polarized film (200) are fully attached through the optical adhesive layer (130).

4. The touch module according to claim 3, wherein, The optical adhesive layer (130) is an OCA adhesive layer.

5. The touch module according to claim 1, wherein, The polarized film (200) comprises a polarized layer and protective films arranged on both sides of the polarized layer. 6.The touch module according to claim 1, characterized in that, The polarized film (200) is arranged on both sides of the touch control film (110).

7. The touch module according to claim 1, wherein, The area of the polarized film (200) is greater than or equal to the area of the touch control film (110).

8. An electronic device, comprising: The application further relates to a touch control carrier and the touch module (1000) according to any one of claims 1-7, and the touch control film (110) is arranged on the touch control carrier.

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