CN203178965U - Touch panel cover plate - Google Patents

Abstract

A touch screen cover plate, comprising a base layer of the cover plate, a transparent embossed adhesive layer and a metal layer, the base layer of the cover plate includes a display area and a frame area, the transparent embossed adhesive layer is attached to the display area and the frame area of the base layer of the cover plate, and the frame area The part of the transparent embossed adhesive layer is provided with grooves of a predetermined shape; the metal layer is embedded in the groove of the transparent embossed adhesive layer; the above touch screen cover, because the frame area is formed with grooves of a predetermined shape by embossing technology, the concave A metal layer is embedded in the groove, and the obtained metal layer also has a predetermined shape, so that both the transparent embossed adhesive layer and the metal layer have a strong three-dimensional effect, forming a touch screen with a metallic texture and a three-dimensional effect, and such a touch screen cover plate A thin film is omitted, and the metal layer is directly embedded in the transparent embossed adhesive layer, which reduces the thickness of the touch screen cover.

Description

touch screen cover

technical field

The utility model relates to the technical field of touch screens, in particular to a touch screen cover plate.

Background technique

Touch screen equipment has been recognized by the public due to its many advantages such as durability, fast response, space saving, and easy communication. At present, it is a relatively simple, convenient, and natural human-computer interaction equipment. Touch screens have been widely used in many electronic products, such as mobile phones, PDAs (Personal Digital Assistant, PDA), multimedia devices, and the like.

With the development of science and technology, the competition in the industry has intensified, and touch screen manufacturers are always trying to attract people's attention. At present, the touch screen with metal texture and strong three-dimensional effect mainly includes a protective cover plate, an adhesive, a film with a three-dimensional pattern and a metal layer. Mainly by first forming a pattern layer with a three-dimensional effect on the film, then attaching the film to one side of the protective cover through an adhesive, and directly attaching the metal layer to the surface of the film layer through an adhesive, to obtain A complex of protective covers with a metallic texture and a strong three-dimensional effect.

However, the above-mentioned production process uses a layer of metal layer with a metallic texture and a film with a three-dimensional effect to be bonded with an adhesive and then attached to the touch panel cover, adding a layer of film and laminating process. Increased the thickness of the touch screen cover.

Contents of the invention

Based on this, it is necessary to address the problem of increased thickness of the touch screen cover and provide a touch screen cover with a metal three-dimensional texture and a small thickness.

A touch screen cover plate, comprising a base layer of the cover plate, the base layer of the cover plate includes a display area and a frame area, the display area matches the frame area, the display area displays a user operation interface, and further includes:

A transparent embossed adhesive layer, the transparent embossed adhesive layer is attached to the display area and the frame area of the cover base layer, and the transparent embossed adhesive layer in the frame area is provided with a groove of a predetermined shape ;

The metal layer is embedded in the groove.

In one of the embodiments, the grooves of the predetermined shape are grid-like grooves.

In one of the embodiments, the thickness of the metal layer is not less than the thickness of the groove.

In one embodiment, the transparent embossing adhesive layer has a thickness of 2-10 μm.

In one embodiment, the metal layer has a thickness of 10-100 nm.

In one embodiment, the metal layer has a thickness of 0.5-5 μm.

In one of the embodiments, an ink layer is further included, and the ink layer is attached to the metal layer.

In one of the embodiments, the ink layer is a thermosetting high-covering ink layer.

The above-mentioned touch screen cover plate, the display area and the frame area of the base layer of the cover plate are coated with a transparent embossing adhesive layer, and the frame area is formed with a groove of a predetermined shape by embossing technology, and a metal layer is embedded in the groove, so that the metal layer It also forms a predetermined shape, so that both the transparent embossed adhesive layer and the metal layer have a strong three-dimensional effect, forming a touch screen with a metallic texture and a three-dimensional effect, and because such a touch screen cover omits a layer of film, and the metal layer is directly embedded Set on the transparent embossing adhesive layer, thereby reducing the thickness of the touch screen cover.

Description of drawings

FIG. 1 is a schematic structural view of a touch screen cover;

Fig. 2 is a structural schematic diagram of another viewing angle of the touch screen cover;

Fig. 3 is a structural schematic diagram of another viewing angle of the touch screen cover;

FIG. 4 is a schematic structural diagram of a touch screen cover in another embodiment.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a touch screen cover 100 includes a cover base layer 110 , a transparent embossed adhesive layer 120 and a metal layer 130 . The cover base layer 110 includes a display area 112 and a frame area 114 , the display area 112 matches the shape of the frame area 114 , and the display area 112 displays a user operation interface. The transparent embossed adhesive layer 120 is attached to the display area 112 and the frame area 114 of the cover base layer 110 , and the transparent embossed adhesive layer 120 part of the frame area 114 is provided with a groove 122 of a predetermined shape. The metal layer 130 is embedded in the groove 122 .

In the above-mentioned touch screen cover 100 , the base layer 110 of the cover includes a display area 112 and a frame area 114 , and the display area 112 and the frame area 114 are complementary in shape to form a complete touch screen cover 100 . Both the frame area 114 and the display area 112 are attached with a transparent embossed adhesive layer 120. The transparent adhesive layer 120 of the frame area 114 is partially provided with a groove 122 of a predetermined shape. The metal layer 130 of the printing rubber layer 120, the metal layer 130 is also formed with a predetermined shape, forming a touch screen cover with a strong three-dimensional effect and a metallic texture, and such a touch screen cover omits a layer of film, and the metal layer 130 It is directly embedded in the transparent embossing adhesive layer 120, reducing the thickness of the touch screen cover.

Specifically in this embodiment, the cover substrate 110 can be made of hard transparent materials such as glass or acrylic board, or polyethylene terephthalate (polyethylene terephthalate, PET) film, polycarbonate (Polycarbonate, PC) At least one of flexible transparent materials such as films.

Specifically in this embodiment, the predetermined shape of the groove 122 is a grid-shaped groove 122 . When the metal layer 130 is embedded in the grid-like groove 122 , the formed metal layer 130 is grid-like, and the grid-like metal layer 130 has a better three-dimensional effect. Certainly, in other embodiments, the groove 122 of the predetermined shape may also be a strip-shaped groove, and the strip-shaped groove distributes the metal regions of the metal layer intermittently, which can also have a stronger three-dimensional effect.

Please refer to FIG. 3 , specifically in this embodiment, the thickness of the metal layer 130 is greater than the thickness of the groove 122 . At this time, the metal layer 130 is formed in the groove 122 of the transparent embossed adhesive layer by means of coating, and the metal layer is also formed with a groove-like structure, and the thickness of the metal layer 130 is greater than that of the groove 122 of the transparent embossed adhesive layer. thickness.

In this embodiment, the obtained metal layer 130 has a thickness ranging from 10 nm to 100 nm by coating. When the thickness of the metal layer 130 ranges from 10 nm to 100 nm, the three-dimensional effect is better. Then, the ink layer 140 is formed by applying ink to the concave portion of the metal layer 130 . The ink layer 140 is a thermosetting high-covering ink layer. The function of the ink layer 140 is to ensure that the touch screen cover 100 does not leak light, so as to increase the contrast between the display area 112 and the frame area 114 and make the picture of the display area 112 brighter. At the same time, the leads of the conductive layer can be covered to further improve user experience.

Obtaining the metal layer 130 by means of film coating may specifically include the following steps: firstly, a substrate is provided as the cover base layer 110 , and a transparent embossing adhesive layer 120 is coated on the surface of the cover base layer 110 . Then press on the surface of the transparent embossing adhesive layer 120 in the frame area 114 to perform embossing to form grooves 122 in the transparent embossing adhesive layer 120 in the frame area 114 . A layer of photoresist is coated on the part of the transparent embossed rubber layer 120 corresponding to the display area 112 and the frame area 114, and after exposure and development, the photoresist at the place where the transparent embossed rubber layer 120 has a groove 122 structure is removed, The transparent embossing adhesive layer 120 with the structure of the groove 122 is exposed, and the part of the transparent depressing adhesive layer 120 that does not need to be filled with the metal layer 130 is protected by a photoresist, thereby obtaining a composite. Then, the developed complex is subjected to electroless plating combined with electroplating treatment, and a layer of metal is evenly plated on the transparent embossed rubber layer 120 with a groove 122 structure to form a metal layer 130, and the formed metal layer 130 also has a groove-like structure . Choose the corresponding metal according to the desired texture effect color, such as silver, choose metal-plated silver, copper color, choose metal-plated copper, etc. The remaining photoresist is then removed using a glue remover. Finally, it may also include coating a layer of cover ink on the groove structure of the metal layer 130 to form the ink layer 140 to ensure that the touch screen cover does not leak light.

Please refer to FIG. 4 , in other embodiments, the thickness of the metal layer 130 is equal to the thickness of the groove 122 of the transparent embossed adhesive layer. At this time, the metal layer 130 is obtained by coating. The metal layer 130 is obtained by coating a layer of metal ink on the transparent embossing adhesive layer 120 having the groove 122 structure, and then drying. The metal layer 130 thus formed has a thickness in the range of 0.5-5 μm. When the thickness of the metal layer 130 is in the range of 0.5-5 μm, a touch screen cover with a high three-dimensional effect can also be formed.

It should be pointed out that the use of a thermosetting high-covering ink layer is to further improve the user experience. Even if a general covering ink layer is provided, the purpose of shading can also be achieved. At the same time, even if the protective cover is not provided with the ink layer 140, and ink is applied to the corresponding position of the frame area 114 of the touch screen cover, the purpose of light shielding can be achieved, so the ink layer 140 is not necessarily arranged on the touch screen cover 100. of.

Specifically in this embodiment, the thickness range of the transparent embossing adhesive layer 120 may be 2-10 μm. The material of the transparent embossing adhesive layer 120 may be polymethylmethacrylate (PMMA) type UV adhesive. Considering the optical transmittance and embossing effect, when the transparent embossing adhesive layer 120 is thicker, the optical transmittance The lower the rate, the lower the transparency; when the transparent embossing adhesive layer 120 is thinner, the embossing effect is not good, so the thickness of the transparent embossing adhesive layer 120 is preferably in the range of 2-10 μm.

Specifically in this embodiment, the material of the metal layer 130 can be one of silver, copper, etc., which can be selected according to the desired metal texture color. For example, when silver is required, metal silver is selected as the metal layer. Material, copper color is to choose metal-plated copper.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (8)

1. a touch-screen cover plate comprises cover plate basic unit, and described cover plate basic unit comprises viewing area and frame region, and described viewing area and described frame region are complementary, and described viewing area explicit user operation interface is characterized in that, also comprises:

Transparent impression glue-line, described transparent impression glue-line are attached at described viewing area and the described frame region of described cover plate basic unit, and the transparent impression glue-line of described frame region partly offers the groove of reservation shape;

Metal level, described metal level is embedded at described groove.

2. touch-screen cover plate according to claim 1 is characterized in that, the groove of described reservation shape is latticed groove.

3. touch-screen cover plate according to claim 2 is characterized in that, described metal layer thickness is not less than the thickness of groove.

4. touch-screen cover plate according to claim 3 is characterized in that, the thickness of described transparent impression glue-line is 2-10 μ m.

5. touch-screen cover plate according to claim 4 is characterized in that, described metal layer thickness is 10-100nm.

6. touch-screen cover plate according to claim 4 is characterized in that, described metal layer thickness is 0.5-5 μ m.

7. according to any described touch-screen cover plate in the claim 1 to 6, it is characterized in that also comprise ink lay, described ink lay is attached at described metal level.

8. touch-screen cover plate according to claim 7 is characterized in that, described ink lay is the high ink lay that hides of heat curing-type.

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