CN108241457B - Touch sensing module, touch display panel using same and intelligent watch - Google Patents

Abstract

The utility model provides a touch-control sensing module, includes base plate, touch-control electrode layer, many walks the line, the base plate includes the main part and by the outside extension portion that extends formation in the edge of main part, the touch-control electrode layer set up in a surface of main part, walk the line and lie in the touch-control electrode layer electric connection of main part and extend to the extension portion. The invention also provides a touch display panel and an intelligent watch applying the touch sensing module.

Description

Touch sensing module and touch display panel and smart watch using the same

technical field

The present invention relates to a touch sensing module, in particular to a touch sensing module applied to a smart watch, a smart watch and a touch display panel using the touch sensing module.

Background technique

With the increasing number of intelligent electronic devices, people talk more and more about the touch screen. The touch screen is the simplest, convenient and natural way of human-computer interaction. It has many advantages such as fast response, space saving, and easy communication.

With the rapid development of smart electronic products, smart watch technology has also made rapid progress in recent years. At present, smart watches on the market, whether it is a rectangular screen or a circular screen, are facing difficulties in the wiring collection end of the touch panel. placement problem. Some products on the market place the wire collection terminal directly on the touch panel. As shown, although the wire collection terminal 13 is disposed on the edge of the touch panel, it still occupies the area of the touch panel and reduces the screen ratio. Moreover, for a wearable touch display panel with a circular appearance (such as the dial of a smart watch), when the wire collection end is arranged on the touch panel, the glass cover is caused by the large area occupied by the wire collection end. Difficult to render circular. How to solve the above problems is what those skilled in the art need to think about.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a touch sensing module with high panel utilization.

In addition, a touch display panel and a smart watch using the touch sensing module are also provided.

A touch sensing module includes a substrate, a touch electrode layer, and a plurality of traces. The substrate includes a main body portion and an epitaxial portion formed by extending outward from an edge of the main body portion. The touch electrode layer is disposed on the On a surface of the main body portion, the traces are electrically connected to the touch electrode layer located in the main body portion and extend to the epitaxial portion.

A touch display panel includes a cover plate, the above-mentioned touch sensing module and a display module which are stacked in sequence.

A smart watch includes the above touch sensing module.

Compared with the conventional structure, in the touch sensing module of the present invention, the wires are led out to the extension portion. It can be understood that the collection end of the wires in the present invention is located on the extension portion, and this structure can effectively improve the screen ratio.

Description of drawings

FIG. 1 is a schematic diagram of a touch display panel of a smart watch with a conventional structure.

FIG. 2 is a schematic plan view of the touch sensing module according to the first embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a touch display panel applying the touch sensing module according to the first embodiment of the present invention.

FIG. 4 is a schematic plan view of a touch sensing module according to a second embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a touch display panel applying the touch sensing module according to the second embodiment of the present invention.

6 is a partial schematic diagram of a touch sensing module according to a second embodiment of the present invention.

FIG. 7 is a schematic diagram of a smart watch using the touch sensing module according to the preferred embodiment of the present invention.

Description of main component symbols

The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

Detailed ways

In order to make the technical content disclosed in this application more detailed and complete, reference may be made to the accompanying drawings and the following various specific embodiments of the present invention, wherein the same symbols in the accompanying drawings represent the same or similar components. However, those of ordinary skill in the art should understand that the embodiments provided below are not intended to limit the scope covered by the present invention. Furthermore, the drawings are for schematic illustration only and are not drawn to their full scale.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

first embodiment

Please refer to FIG. 2 to FIG. 3 , which are the touch display panel 2 according to the first embodiment of the present invention. The touch display panel 2 includes a touch sensing module 20 , a display module 30 and a cover plate 40 . As shown in FIG. 3 , the touch sensing module 20 , the display module 30 and the cover plate 40 are stacked and disposed, and the touch sensing module 20 is disposed between the display module 30 and the cover plate 40 . . The touch display panel 2 of this embodiment is described by taking the touch display panel of a smart watch as an example.

As shown in FIG. 2 , the touch sensing module 20 includes a substrate 21 , a touch electrode layer 22 and a plurality of traces 23 .

The substrate 21 is a carrier substrate of the touch sensing module 20 , and the touch electrode layer 22 and the traces 23 of the touch sensing module 20 are disposed on the substrate 21 . The substrate 21 includes a main body portion 201 and an extension portion 202 . The area of the main body portion 201 is larger than that of the extension portion 202 , and the extension portion 202 is formed by extending outward from the edge of the main body portion 201 . The main body portion 201 includes a central area 222 and a peripheral area 224 surrounding the central area 222 , and the central area 222 corresponds to the display area of the touch display panel 2 . In this embodiment, the main body portion 201 is substantially circular, and the extension portion 202 extends from a partial edge of the main body portion 201 ; in other embodiments, the main body portion 201 may also be rectangular, in this case, the extension portion 202 extends from the An edge extends out.

In this embodiment, the substrate 21 can be a flexible material, which has flexibility, so that the touch sensing module 20 can be applied to a curved display device or a flexible display device. The material of the substrate 21 can be organic, such as polycarbonate (Polycarbonate, PC), polyimide (PI), polyethylene naphthalate (Polyethylenenaphthalate two formic acid glycol ester, PEN), polyethylene Ethylene glycol terephthalate (PET) and cyclic olefin copolymer (Cyclo-olefinpolymer, COP). It can be understood that the material of the substrate 21 can be selected according to actual needs.

The touch electrode layer 22 is disposed on a surface of the main body portion 201 , the touch electrode layer 22 is disposed corresponding to the central area 222 , and the touch electrode layer 22 includes a plurality of touch electrodes arranged in a matrix. Electrode 221. In order not to affect the display, the touch electrode layer 22 can be made of one of light-transmitting conductive materials such as indium tin oxide (ITO), nano-silver, polymer compounds, graphene, and metal meshes. .

The traces 23 are disposed on the surface of the substrate 21 on which the touch electrode layer 22 is formed. Each touch electrode 221 is electrically connected to at least one trace 23 . The traces 23 are connected to the touch electrode 221 and then gradually converge to the peripheral area 224 of the main body 201 , and the peripheral area 224 extends to the extension portion 202 . The touch electrode layer 22 is used for sensing touch, and transmits the signals generated by the sensing through the traces 23 .

In this embodiment, the extension portion 202 includes a connection portion 2021 and a bonding portion 2022 connected to the connection portion 2021 , the extension portion 202 is substantially a “T”-shaped structure, and the connection portion 2021 of the extension portion 202 connected to the main body 201 . The width of the bonding portion 2022 of the extension portion 202 is greater than the width of the connecting portion 2021 , so that the plurality of traces 23 extend to the bonding portion 2022 and have enough space to be dispersed and arranged. The bonding portion 2022 is provided with a plurality of connection pads 2023 , and each connection pad 2023 is connected to a trace 23 . The connection pads 2023 are used to electrically connect the traces 23 with a flexible circuit board 24 .

As shown in FIG. 2 , the extension portion 202 is bent to the side of the display module 30 away from the touch sensing module 20 , so that at least the bonding portion 2022 of the extension portion 202 is located at the display module 30 away from the touch sensing module 20 . One side of the module 20 is stacked with the display module 30 . As a result, the bonding portion 2022 electrically connecting the touch display panel 2 and the flexible circuit board 24 is folded over to be stacked with the main body portion 201 of the substrate 21 of the touch sensing module 20 , and the bonding portion 2022 does not occupy the main body The space and area of section 201.

Compared with the conventional structure, in the touch display panel 2 of the present invention, the bonding area between the traces 23 and the flexible circuit board 24 is located on the side of the display module 30 away from the touch sensing module 20 . Moreover, the bonding area of the touch display panel 2 in this embodiment is not located in the display area, which can further increase the screen ratio of the product and make the product more beautiful.

Second Embodiment

Please refer to FIGS. 4 to 7 , which are the touch display panel 5 according to the second embodiment of the present invention. The touch display panel 5 includes a touch sensing module 50 , a display module 60 and a cover plate 70 . As shown in FIG. 5 , the touch sensing module 50 , the display module 60 and the cover plate 70 are stacked and disposed, and the touch sensing module 50 is disposed between the display module 60 and the cover plate 70 . . The touch display panel 2 of this embodiment is described by taking the touch display panel of a smart watch as an example.

As shown in FIG. 4 , the touch sensing module 50 includes a substrate 51 , a touch electrode layer 52 and a plurality of traces 53 .

The substrate 51 is a carrier substrate of the touch sensing module 50 , and the touch electrode layer 52 and the traces 53 of the touch sensing module 50 are disposed on the substrate 51 . The substrate 51 includes a main body portion 501 and two extension portions 502 spaced apart from each other. The area of the main body portion 501 is larger than that of each extension portion 502 . formed by extension. The main body portion 501 includes a central area 522 and a peripheral area 524 surrounding the central area 522 , and the central area 522 corresponds to the display area of the touch display panel 5 . In this embodiment, the two extension parts 502 are symmetrically arranged with respect to the main body part 501 . In this embodiment, the main body portion 501 is substantially circular, and the extension portion 502 extends from a partial edge of the main body portion 501 ; in other embodiments, the main body portion 501 may also be rectangular. An edge extends out.

In this embodiment, the substrate 51 can be a flexible material, which has flexibility, so that the touch sensing module 50 can be applied to a curved display device or a flexible display device. The material of the substrate 51 can be organic, such as polycarbonate (Polycarbonate, PC), polyimide (PI), polyethylene naphthalate (Polyethylenenaphthalate two formic acid glycol ester, PEN), polyethylene Ethylene terephthalate (polyethylene glycol terephthalate, PET) and cyclic olefin copolymer (Cyclo-olefin polymer, COP); understandably, the material of the substrate 51 can be selected according to actual needs.

The touch electrode layer 52 is disposed on a surface of the main body portion 501 , the touch electrode layer 52 is disposed corresponding to the central area 522 , and the touch electrode layer 52 includes a plurality of touch electrodes arranged in a matrix. Electrode 521. In order not to affect the display, the touch electrode layer 52 can be made of one of light-transmitting conductive materials such as indium tin oxide (ITO), nano-silver, polymer compounds, graphene, and metal meshes. .

The traces 53 are disposed on the surface of the substrate 51 on which the touch electrode layer 52 is formed. Each of the touch electrodes 521 is electrically connected to at least one trace 53 . The traces 53 are connected to the touch electrodes 521 and then gradually converge on the peripheral area 524 of the main body 501 . Some traces 524 are formed by The peripheral region 524 extends to one of the extension portions 502 , and another part of the wiring 524 extends from the peripheral region 524 to the other extension portion 502 . The touch electrode layer 52 is used for sensing touch, and transmits the signals generated by the sensing through the traces 53 .

In this embodiment, each of the extension portions 502 includes a connection portion 5021 and a bonding portion 5022 connected to the connection portion 5021 . The extension portion 502 is approximately a “T”-shaped structure. The part 5021 is connected to the main body part 501 . The width of the bonding portion 5022 of the extension portion 502 is greater than the width of the connecting portion 5021 , so that the plurality of traces 53 extend to the bonding portion 5022 and have enough space to be distributed and arranged. The bonding portion 5022 is provided with a plurality of connection pads 5023 , and each connection pad 5023 is connected to a trace 53 . The connection pads 5023 are used to electrically connect the traces 53 with a flexible circuit board 54 .

In this embodiment, the two extension portions 502 are approximately symmetrically distributed on both sides of the main body portion 501 , and parts of the plurality of traces 53 extend to different extension portions 502 respectively. It can be understood that compared with For the structure in the first embodiment, the number of the wirings 53 in each of the extension parts 502 in this embodiment is approximately half of the number of the wirings 23 on the extension part 202 in the first embodiment. As shown in FIG. 6 , since the number of the wirings 53 on each extension part 502 is reduced, in the case where the extension parts 202 and 502 have the same width, compared with the first embodiment, the wirings 53 on the extension part 502 are reduced. It can have a larger width, and the width of the traces 53 on the extension part 502 is larger than that of the traces 53 on the main body part 501 . In other embodiments, the number of the extension parts 502 may be greater than or equal to three, and each of the extension parts 502 is spaced apart from each other.

The extension portion 502 is bent to the side of the display module 60 away from the touch sensing module 50 , so that at least the bonding portion 5022 of the extension portion 502 is located at the side of the display module 60 away from the touch sensing module 50 It is stacked with the display module 60 . Thus, the bonding portion 5022 electrically connecting the touch display panel 5 and the flexible circuit board 54 is folded over to be stacked with the main body portion 501 of the substrate 51 of the touch sensing module 50 , and the bonding portion 5022 does not occupy the main body The space and area of section 501.

Compared with the conventional structure, in the touch display panel 5 of the present invention, the bonding area between the traces 53 and the flexible circuit board 54 is located on the side of the display module 60 away from the touch sensing module 50 . In this embodiment, the traces 53 are respectively disposed on the two extension parts 502 , so that the number of traces 53 on each of the extension parts 502 is reduced, and the area of the extension part 502 remains unchanged. In this case, because the space is sufficient, the traces on the extension portion 502 can be made wider, so that the traces 53 are less likely to be broken during the bending process. On the other hand, since the number of traces 53 on each of the extension portions 502 is reduced, each of the extension portions 502 is more likely to be in close contact with the sidewall of the display module 60 during the bending process, thereby further saving energy space.

Please refer to FIG. 7 , the present invention also provides a smart watch 1 , the smart watch 1 includes a main body 3 and a touch sensing module 50 disposed in the main body 3 , and the touch sensing module 50 can be provided for the present invention The touch-sensing module, such as the touch-sensing module of the first embodiment or the second embodiment.

Hereinabove, specific embodiments of the present invention have been described with reference to the accompanying drawings. However, those skilled in the art can understand that various changes and substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention. These modifications and substitutions fall within the scope defined by the claims of the present invention.

Claims (10)

1. A touch sensing module comprises a substrate, a touch electrode layer and a plurality of wires, and is characterized in that: the substrate comprises a main body part and an extension part formed by extending the edge of the main body part outwards, wherein the main body part comprises a central area and a peripheral area surrounding the central area, and the main body part is circular so as to define the central area and an arc-shaped peripheral area corresponding to the main body part; the touch electrode layer is arranged on one surface of the main body part, the wires are electrically connected with the touch electrode layer positioned on the main body part and extend to the epitaxial part, the epitaxial part is of a T-shaped structure and comprises a connecting part and a bonding part connected with the connecting part, the epitaxial part extends out from the circular arc-shaped edge of the circular main body part, the connecting part is connected with the arc-shaped edge of the main body part, the width of the bonding part of the epitaxial part is greater than that of the connecting part, and the width of the wires on the epitaxial part is greater than that of the wires positioned on the main body part; each touch electrode is electrically connected with at least one wire, and a plurality of wires are gradually gathered in the arc-shaped peripheral area of the main body part after being connected with the touch electrodes and extend to the epitaxial part from the arc-shaped peripheral area.

2. The touch sensing module of claim 1, wherein: the quantity of extension portion is two or more, every the mutual interval setting between the extension portion.

3. The touch sensing module of claim 2, wherein: the number of the extension parts is two, and the two extension parts are approximately symmetrically distributed on two sides of the main body part.

4. The touch sensing module of claim 2, wherein: the routing wires are dispersedly arranged on the plurality of the extension parts.

5. The touch sensing module of claim 1, wherein: the touch sensing electrode layer is arranged in the central area and comprises a plurality of touch sensing electrodes arranged in a matrix.

6. The touch sensing module of claim 1, wherein: a plurality of connecting pads are arranged on the bonding part, and each connecting pad is connected with one wiring.

7. The touch sensing module of claim 6, wherein: the touch sensing module further comprises a flexible circuit board, and the flexible circuit board is electrically connected with the wires through the connecting pads.

8. The utility model provides a touch-control display panel, includes apron, touch-control sensing module and the display module assembly that stacks gradually the setting, its characterized in that: the touch sensing module is the touch sensing module of any one of claims 1-7.

9. The touch display panel of claim 8, wherein: the extension portion bends towards one side of the display module far away from the touch sensing module.

10. The utility model provides an intelligent watch, intelligent watch includes touch-control sensing module, its characterized in that: the touch sensing module is the touch sensing module of any one of claims 1-7.

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