CN203909768U - Touch device and covering module thereof - Google Patents

Abstract

The utility model relates to the field of touch technology, and provides a touch device, including a touch module, a cover plate, a shielding layer and a touch sensing component, wherein the touch module has a touch sensing array, and the cover plate covers the touch sensor control module. The cover plate has a light transmission area and a surrounding area, wherein the light transmission area corresponds to the touch sensing array, and the surrounding area is located on at least one side of the light transmission area. The shielding layer is disposed on the surface of the cover plate facing the touch module, and is located in the surrounding area, and is used for partially hollowing out the surrounding area to define at least one pattern area. The touch sensing component is arranged on the surface and covers at least one pattern area correspondingly. The utility model further provides a cover module for a touch device, which includes a cover plate, a shielding layer and at least one touch sensing component. The utility model has the advantages of improving the touch function and saving costs.

Description

Touch device and its covering module

technical field

The utility model relates to a touch device, in particular to a touch device with touch keys in the surrounding area and a covering module thereof.

Background technique

Existing touch devices are mainly double-glass structures, in which the touch sensing array is arranged on a glass substrate and covered with a protective glass. In the double-glass structure, there are two ways in the prior art to make the icon set in the surrounding area in the touch device act as a touch key: one is to extend the touch sensing array to the bottom of the icon in the surrounding area, Make the icons set in the surrounding area also have touch function; the other is to use a flexible circuit board, set the touch sensor on the flexible circuit board, and then use optical clear adhesive (OCA) to seal the flexible circuit board The touch sensor is pasted under the icon in the surrounding area, so that the icon has a touch function.

However, extending the touch sensing array to the surrounding area will increase the area of the touch sensing area, which is not conducive to the layout of the photomask used in the manufacturing process of the touch sensing array, and will increase more production costs. In addition, in the way of using the flexible circuit board to make the icon have touch function, when the flexible circuit board is pasted on the surrounding area of the glass substrate, the flexibility of the flexible circuit board can easily make the difference between the touch sensor and the icon Air bubbles or gaps will be generated between them, which will affect the sensing function.

Utility model content

In order to solve the above problems and overcome the deficiencies of the prior art, the utility model provides a touch device, which has the advantages of improving the sensing sensitivity of the surrounding area and saving costs.

The utility model further provides a cover module of the touch device, so as to improve the sensing sensitivity of the surrounding area of the touch device and save costs.

The touch device provided by the present invention includes a touch module, a cover plate, a shielding layer and at least one touch sensor component, wherein the touch module has a touch sensor array, and the cover plate covers the touch module. The cover plate has a light transmission area and a surrounding area, wherein the light transmission area corresponds to the touch sensing array, and the surrounding area is located on at least one side of the light transmission area. The shielding layer is disposed on the surface of the cover plate facing the touch module, and is located in the surrounding area, and is used for partially hollowing out the surrounding area to define at least one pattern area. And at least one touch sensing element is arranged on the surface and correspondingly covers at least one pattern area.

In an embodiment of the present invention, the above-mentioned touch device further includes a flexible circuit board electrically connected to the touch-sensing component and the touch-sensing array respectively.

In one embodiment of the present invention, the above-mentioned flexible circuit board has a bonding area and at least one bonding wire, wherein the bonding area is provided with a plurality of first bonding pads and at least one second bonding pad, and the first bonding pad is used for to electrically connect the touch sensing array. At least one bonding wire is used for electrically connecting the second bonding pad, and electrically connecting to the extension part of the touch sensing element.

In an embodiment of the present invention, the above-mentioned flexible circuit board further has at least one third bonding pad, and the bonding wire is electrically connected to the extension portion through the third bonding pad.

In an embodiment of the present invention, the above-mentioned pattern area is outside the range where the touch module is orthographically projected on the cover plate.

In an embodiment of the present invention, the above-mentioned touch device further includes an adhesive layer connected between the cover plate and the touch module.

In an embodiment of the present invention, the above-mentioned touch device further includes at least one color photoresist covering at least one pattern area, and the touch sensing element covers the color photoresist, and the color of the color photoresist is different from that of the patterned masking layer .

In an embodiment of the present invention, the above-mentioned touch device further includes a display panel, and the touch module is located between the display panel and the cover, and the visible area of the display panel corresponds to the light-transmitting area of the cover.

The utility model further provides a cover module of a touch device, including a cover plate, a shielding layer and at least one touch sensing component, wherein the cover plate has a light-transmitting area and a surrounding area, and the surrounding area is located in at least one of the light-transmitting areas side. The shielding layer is arranged on the surface of the cover plate and located in the surrounding area, and the shielding layer is used for partially hollowing out the surrounding area to define at least one pattern area. At least one touch sensing component is arranged on the surface of the cover plate and correspondingly covers at least one pattern area.

The touch device and its covering module of the present invention directly cover the touch sensing component on the pattern area located in the surrounding area of the cover plate, and the cost can be reduced because the touch sensing array does not need to be extended to the surrounding area. Moreover, since the pattern area and the touch-sensing component are not bonded by optical glue, the problem of poor sensing sensitivity of the touch-sensing component caused by bonding defects can be avoided.

In order to make the above and other objectives, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a touch device according to an embodiment of the present invention.

FIG. 2 is a schematic partial top view of a touch device according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of a touch device according to another embodiment of the present invention.

FIG. 4 is a schematic diagram of a touch device according to another embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

FIG. 1 is a schematic diagram of a touch device according to an embodiment of the present invention. Referring to FIG. 1 , the touch device 100 of this embodiment includes a touch module 110 and a cover module 160 , wherein the cover module 160 covers the touch module 110 . The user can perform manipulation actions on the overlay module 160 . The cover module 160 includes a cover plate 120 , a shielding layer 130 and at least one touch sensing component 140 . The cover plate 120 covers the touch module 110 . The cover plate 120 has a transparent area 121a and a surrounding area 121b, and the dotted line in FIG. 1 is a boundary line between the transparent area 121a and the surrounding area 121b. The transparent area 121 a corresponds to the touch sensing array 111 , and the surrounding area 121 b is located on at least one side of the transparent area 121 a. The shielding layer 130 is disposed on the surface 122 of the cover plate 120 facing the touch module 110 , and is located in the surrounding area 121 b for partially hollowing out the surrounding area 121 b to define at least one pattern area 133 . The touch sensing component 140 is disposed on the surface 122 and covers the pattern area 133 correspondingly, so that the pattern area 133 has a touch function.

FIG. 2 is a schematic partial top view of a touch device according to an embodiment of the present invention. As shown in FIG. 2 , in this embodiment, the touch module 110 further includes a substrate 112 such as a glass substrate or a plastic substrate. The touch sensing array 111 is disposed on the substrate 112 and located between the substrate 112 and the cover 120 . It should be noted that the area between the boundary B1 of the shielding layer 130 and the boundary B2 of the substrate 112 is the overlapping area of the shielding layer 130 and the touch module 110 . In order to express each component clearly, FIG. 2 shows the components covered by the substrate 112 with solid lines, such as the touch sensor array 111 and the area overlapping the touch module 110 with the shielding layer 130 . In addition, there is a distance between the boundary B3 of the touch sensing array 111 and the boundary B2 of the substrate 112 . In some embodiments, part of the border B3 of the touch sensing array 111 may overlap part of the border B2 of the substrate 112 . In addition, there is a distance between the boundary B2 of the substrate 112 and the boundary B4 of the cover 120 . In some embodiments, a portion of the boundary B2 of the substrate 112 may overlap with a portion of the boundary B4 of the cover plate 120 .

The touch sensing array 111 mentioned above can be a capacitive touch sensing array, a resistive touch sensing array, etc., but the present invention is not limited thereto. In this embodiment, the pattern area 133 is located outside the range where the touch module 110 is orthographically projected on the cover 120 , but the present invention is not limited thereto. More specifically, in this embodiment, the size of the cover plate 120 is larger than the size of the substrate 112, so part of the cover plate 120 exceeds the scope of the substrate 112 and does not overlap with the touch module 110, and the above-mentioned pattern area 133 does not overlap with the touch module 110. The touch modules 110 overlap. In addition, in this embodiment, the color of the masking layer 130 is black, which can be made on the surface 122 of the cover plate 120 by ink screen printing, but the present invention does not limit the color and manufacturing method of the masking layer 130 . The pattern area 133 (the area shown by the dotted line) located in the surrounding area 121b is the position of the touch key. Fig. 2 is an example of four pattern areas 133, these pattern areas 133 have different patterns, which represent different function keys, but the number of pattern areas 133 can also be one or more, the present invention is not limited. The number of touch sensing components 140 corresponds to the number of pattern areas 133, and the touch sensing components 140 formed in the pattern areas 133 can be made by printing conductive materials, but the present invention does not limit the touch sensing components 140 forms.

In some embodiments, the touch device 100 may further include a flexible circuit board 150 electrically connected to the touch sensing element 140 and the touch sensing array 111 . It should be noted that, in order to express each component clearly, FIG. 2 shows the components covered by the flexible circuit board 150 with solid lines. In addition, the flexible circuit board 150 is flexible and can be bent according to design requirements, and its position is not limited to that shown in FIG. 2 . The flexible circuit board 150 has a bonding area 151 and at least one bonding wire 152 . In some embodiments, the flexible circuit board 150 may further have at least one third bonding pad 151c. The bonding area 151 is provided with a plurality of first bonding pads 151 a and at least one second bonding pad 151 b, and the number of the bonding wires 152 and the second bonding pads 151 b corresponds to the number of the pattern areas 133 . The bonding wire 152 is used to electrically connect the second bonding pad 151b. In some embodiments, the touch sensing component 140 has an extension portion 141 to be electrically connected to the bonding wire 152 . The number of the third bonding pads 151c corresponds to the number of the bonding wires 152, and the third bonding pads 151c are connected to the ends of the bonding wires 152, so that the bonding wires 152 are electrically connected to the extension portion through the third bonding pads 151c. 141. In addition, the first bonding pad 151 a is used for electrically connecting the touch sensing array 111 . In some embodiments, the touch sensing array 111 further includes a plurality of wires 113 and a plurality of fourth bonding pads 114 connected to the wires 113, and is electrically connected through the wires 113 and the fourth bonding pads 114. to these first bonding pads 151a.

Compared with the conventional structure that extends the touch sensing array to the surrounding area, the touch sensing device 100 of this embodiment directly covers the pattern area 133 located in the surrounding area 121b of the cover plate 120 with the touch sensing element 140 . The pattern area 133 can have the touch function without extending the touch sensing array 111 to the surrounding area 121b, so the cost can be reduced. Moreover, compared with the conventional structure where the touch sensing component is fabricated on a flexible circuit board, this embodiment can avoid bonding the pattern area 133 and the touch sensing component 140 by optical glue. The bonding defect leads to poor sensing of the touch sensing component 140 .

FIG. 3 is a schematic diagram of a touch device according to another embodiment of the present invention. Please refer to FIG. 3 , which is similar to FIG. 1 , except that the touch device of this embodiment further includes at least one color photoresist 125 covering the pattern area 133 , wherein the number of color photoresist 125 corresponds to the number of the pattern area. The touch sensing component 140 covers the color photoresist 125 . In this embodiment, the color of the color photoresist 125 is different from that of the shielding layer 130, so that the pattern area 133 covered by the color photoresist 125 can show different colors. The utility model does not limit the color photoresist 125 and the shielding layer. 130 colors.

FIG. 4 is a schematic diagram of a touch device according to another embodiment of the present invention. Please refer to FIG. 4 , in some embodiments, the touch device may further include an adhesive layer 170 . In some embodiments, the touch device may further include a display panel 180 . The adhesive layer 170 is connected between the cover plate 120 and the touch module 110 , so that the cover module 160 and the touch module 110 are combined with each other through the adhesive layer 170 . The adhesive layer 170 can be an optical adhesive layer, but the present invention is not limited thereto. In addition, the touch module 110 is located between the display panel 180 and the cover plate 120 . The display panel 180 can be a liquid crystal display panel, an organic light emitting diode display panel or other types of display panels. The touch sensing array 111 of the touch module 110 corresponds to the visible area VA of the display panel 180 , and the above-mentioned transparent area 121 a not only corresponds to the touch sensing array 111 , but also corresponds to the visible area VA of the display panel 180 .

To sum up, the touch device of the present invention directly covers the touch sensing element on the pattern area located in the surrounding area of the cover plate. Since there is no need to extend the touch sensing array to the surrounding area, the cost can be reduced . Moreover, since the pattern area and the touch sensing component are not bonded by optical glue, the problem of poor sensing of the touch sensing component due to bonding defects can be avoided.

Although the present utility model has been disclosed as above with preferred embodiments, it is not intended to limit the present utility model. Anyone who is skilled in this art can make some changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the scope of protection of the present utility model should be defined by the scope of the appended patent application.

Claims (9)

1. a contactor control device, is characterized in that, comprising:

One touch-control module, has a touch-control sensing array;

One cover plate, covers this touch-control module, and has a photic zone and a peripheral region, and wherein this photic zone is to should touch-control sensing array, and this peripheral region is positioned at least one side of this photic zone;

One shielding layer, is arranged at the surface in the face of this touch-control module of this cover plate, and is positioned at this peripheral region, is used to this peripheral region part hollow out to define at least one pattern area; And

At least one touch-control sensing assembly, is arranged at this surface corresponding this at least one pattern area that covers.

2. contactor control device according to claim 1, is characterized in that, more comprises a flexible circuit board, is electrically connected respectively this touch-control sensing assembly and this touch-control sensing array.

3. contactor control device according to claim 2, is characterized in that, wherein this flexible circuit board has

One bonding land, is provided with a plurality of the first joint sheets, in order to be electrically connected this touch-control sensing array, and at least one the second joint sheet; And

At least one overlap joint wire, in order to be electrically connected this second joint sheet, and is electrically connected to an extension of this touch-control sensing assembly.

4. contactor control device according to claim 3, is characterized in that, wherein this flexible circuit board has more at least one the 3rd joint sheet, and this overlap joint wire is electrically connected to this extension through the 3rd joint sheet.

5. contactor control device according to claim 1, is characterized in that, wherein this pattern position in this touch-control module orthogonal projection outside the scope of this cover plate.

6. contactor control device according to claim 1, is characterized in that, more comprises a bonding coat, is connected between this cover plate and this touch-control module.

7. contactor control device according to claim 1, is characterized in that, more comprise that at least one chromatic photoresist covers this at least one pattern area, and this touch-control sensing assembly covers this chromatic photoresist, and this chromatic photoresist is different from the color of this shielding layer.

8. contactor control device according to claim 1, is characterized in that, more comprises a display panel, and this touch-control module is between this display panel and this cover plate, and a visible area of this display panel is to this photic zone that should cover plate.

9. an overlay module for contactor control device, is characterized in that, comprising:

One cover plate, has a photic zone and a peripheral region, and wherein this peripheral region is positioned at least one side of this photic zone;

One shielding layer, is arranged at one of this cover plate surface, and is positioned at this peripheral region, is used to this peripheral region part hollow out to define at least one pattern area; And

At least one touch-control sensing assembly, this surface the correspondence that are arranged at this cover plate cover this at least one pattern area.