TW201935200A - Touch module, touch display panel and smart watch using same - Google Patents

Abstract

The present disclosure relates to a touch module. The touch module includes a substrate, a touch electrode layer, and a plurality of traces. The substrate includes a main portion and an outspread portion that extended outwardly from an edge of the main portion. The touch electrode layer is disposed on a surface of the main portion. The trace electrically connected to the touch electrode layer that disposed on the main, and the trace extends to the outspread portion. The present also provides a touch display panel and a smart watch using the touch module.

Description

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

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

With the increasing number of smart electronic devices, people are talking more and more about touch screens. Touch screens are currently the simplest, most convenient and natural mode of human-computer interaction. They have fast response time, save space, and are easy to use. Communication and many other advantages.

With the rapid development of smart electronic products, smart watch technology has also made rapid progress in recent years. Currently, smart watches on the market, whether it is a rectangular screen or a circular screen, are facing difficulties in the wiring assembly end of the touch panel. The problem of placement. Some products on the market place the wiring assembly end directly on the touch panel. As shown in FIG. 1, although the wiring assembly end 13 is disposed on the edge of the touch panel, it still occupies the area of the touch panel and reduces Screen ratio. Moreover, for a wearable touch display panel with a circular appearance (such as a watch face of a smart watch), when the wiring collection end is set on the touch panel, the area of the wiring collection end is too large, which makes it difficult for the glass cover. Rendered as a circle. How to solve the above problems is what those skilled in the art need to think about.

In view of this, the present invention provides a touch sensing module, which has a higher panel utilization rate.

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 extending outward from an edge of the main body portion. The touch electrode layer is disposed on the substrate. On one surface of the main body portion, the trace is electrically connected to the touch electrode layer located on the main body portion and extends to the epitaxial portion.

A touch display panel includes a cover plate, a touch sensing module and a display module.

A smart watch includes the touch sensing module described above.

Compared with the conventional structure, in the touch sensing module of the present invention, the traces are drawn to the epitaxial part. It can be understood that the traces in the present invention are assembled with end bits on the epitaxial part, and the structure can Effectively increase the screen ratio.

In order to make the technical content disclosed in this application more detailed and complete, reference may be made to the drawings and the following specific embodiments of the present invention. The same symbols in the drawings represent the same or similar components. However, those skilled in the art should understand that the embodiments provided below are not intended to limit the scope covered by the present invention. In addition, the drawings are for illustrative purposes only, and are not drawn to their original dimensions.

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

First embodiment

Please refer to FIGS. 2 to 3, which are a touch display panel 2 according to a 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 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 a 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 base of the touch sensing module 20. 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 epitaxial portion 202. The area of the main body portion 201 is larger than the area of the epitaxial portion 202. The epitaxial portion 202 is formed by an edge of the main body portion 201 extending outward. The main body 201 includes a central region 222 and a peripheral region 224 surrounding the central region 222, and the central region 222 corresponds to a display region 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 part of the 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 main body portion 201. One edge extends.

In this embodiment, the substrate 21 may be a flexible material, which is flexible, 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 may be an organic material, such as polycarbonate (PC), polyimide (PI), polyethylene naphthalate two formic acid glycol ester (PEN), Polyethylene glycol terephthalate (PET) and Cyclo-olefin polymer (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 one surface of the main body 201, the touch electrode layer 22 is disposed corresponding to the central region 222, and the touch electrode layer 22 includes a plurality of touch controls arranged in a matrix. Electrode 221. In order not to affect the display, the touch electrode layer 22 may be made of one of light-transmitting conductive materials such as indium tin oxide (ITO), nano-silver, polymer compounds, graphene, and metal mesh.

The traces 23 are disposed on a surface of the substrate 21 where the touch electrode layer 22 is formed. Each touch electrode 221 is electrically connected to at least one trace 23. The plurality of traces 23 are gradually connected to the peripheral region 224 of the main body 201 after being connected to the touch electrode 221. Extending to the epitaxial portion 202. The touch electrode layer 22 is used for sensing touch, and transmitting signals generated by the sensing through the wiring 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 generally a “T” structure. The connection portion 2021 of the extension portion 202 It is connected to the main body portion 201. The width of the bonding portion 2022 of the epitaxial portion 202 is greater than the width of the connecting portion 2021, so that there is enough space for the plurality of traces 23 to extend to the bonding portion 2022 to be distributed. The bonding portion 2022 is provided with a plurality of connection pads 2023, and each connection pad 2023 is connected to one trace 23. The connection pad 2023 is used to electrically connect the wiring 23 with a flexible circuit board 24.

As shown in FIG. 2, the epitaxial portion 202 is bent toward a side of the display module 30 away from the touch sensing module 20, so that at least the bonding portion 2022 of the epitaxial portion 202 is located at the display module 30 away from touch sensing One side of the module 20 is stacked on the display module 30. Thereby, the bonding portion 2022 electrically connecting the touch display panel 2 and the flexible circuit board 24 is folded to be laminated 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 portion. 201 space and area.

Compared with the conventional structure, in the touch display panel 2 of the present invention, the bonding area between the wiring 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 of 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 is a touch display panel 5 according to a second embodiment of the present invention. The touch display panel 5 includes a touch sensing module 50, a display module 60, and a cover 70. As shown in FIG. 5, the touch sensing module 50, the display module 60, and the cover plate 70 are stacked, 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 a 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 base 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 spaced-apart epitaxial portions 502. The area of the main body portion 501 is larger than the area of each of the epitaxial portions 502. The epitaxial portion 502 faces from the edge of the main body portion 501. Formed outside. 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 portions 502 are symmetrically disposed with respect to the main body portion 501. In this embodiment, the main body portion 501 is substantially circular, and the extension portion 502 extends from a local edge of the main body portion 501. In other embodiments, the main body portion 501 may also be rectangular. One edge extends.

In this embodiment, the substrate 51 may be a flexible material, which is flexible, 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 may be an organic substance, such as polycarbonate (PC), polyimide (PI), polyethylene naphthalate two formic acid glycol ester (PEN), Polyethylene glycol terephthalate (PET) and cyclic olefin copolymer (Cyclo-olefin polymer, COP); it can be understood that the material of the substrate 51 can be selected according to actual needs.

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

The traces 53 are disposed on a surface of the substrate 51 where the touch electrode layer 52 is formed. Each touch electrode 521 is electrically connected to at least one trace 53. The plurality of traces 53 are gradually connected to the peripheral region 524 of the main body 501 after being connected to the touch electrode 521. A part of the trace 524 is formed by The peripheral region 524 extends to one of the epitaxial portions 502, and the other part of the trace 524 extends from the peripheral region 524 to the other epitaxial portion 502. The touch electrode layer 52 is used for sensing touch, and transmitting signals generated by the sensing through the wiring 53.

In this embodiment, each of the epitaxial portions 502 includes a connection portion 5021 and a bonding portion 5022 connected to the connection portion 5021. The epitaxial portion 502 is substantially a “T” structure. The portion 5021 is connected to the main body portion 501. The width of the bonding portion 5022 of the epitaxial portion 502 is larger than the width of the connecting portion 5021, so that there is enough space for the plurality of traces 53 to extend to the bonding portion 5022 to be distributed. The bonding portion 5022 is provided with a plurality of connection pads 5023, and each connection pad 5023 is connected to one trace 53. The connection pad 5023 is used to electrically connect the wiring 53 with a flexible circuit board 54.

The two epitaxial portions 502 of this embodiment are roughly symmetrically distributed on both sides of the main body portion 501, and portions of the plurality of traces 53 respectively extend into different epitaxial portions 502. It can be understood that compared with the implementation, In the structure of the first embodiment, the number of the traces 53 in each epitaxial portion 502 described in this embodiment is approximately half the number of the traces 23 on the epitaxial portion 202 in the first embodiment. As shown in FIG. 6, since the number of traces 53 on each epitaxial portion 502 is reduced, when the epitaxial portions 202 and 502 have the same width, compared with the first embodiment, the number of traces 53 on the epitaxial portion 502 is made. The width of the trace 53 on the epitaxial portion 502 may be greater than the width of the trace 53 on the main body portion 501. In other embodiments, the number of the epitaxial portions 502 may be three or more, and each of the epitaxial portions 502 is disposed at an interval from each other.

The epitaxial portion 502 is bent toward a side of the display module 60 away from the touch sensing module 50, so that at least the bonding portion 5022 of the epitaxial portion 502 is located on the side of the display module 60 away from the touch sensing module 50. It is stacked on the display module 60. Thereby, the bonding portion 5022 electrically connecting the touch display panel 5 and the flexible circuit board 54 is folded to be laminated 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 portion. 501 space and area.

Compared with the conventional structure, in the touch display panel 5 of the present invention, the bonding area between the wiring 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 epitaxial portions 502, so that the number of the traces 53 on each of the epitaxial portions 502 becomes smaller, and the area of the epitaxial portions 502 does not change. In this case, because the space is sufficient, the traces on the extension portion 502 can be made wider, making the traces 53 more difficult to break during the bending process. On the other hand, as the number of traces 53 on each of the epitaxial portions 502 becomes smaller, each of the epitaxial portions 502 can more easily abut on the sidewall of the display module 60 during the bending process, thereby further saving 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. The touch sensing module 50 may be provided by the present invention. The touch-sensing module is, for example, the touch-sensing module described in the first embodiment or the second embodiment.

Hereinabove, specific embodiments of the present invention have been described with reference to the drawings. However, those of ordinary skill 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 changes and substitutions fall within the scope defined by the claims of the present invention.

2, 5‧‧‧ touch display panel

20, 50‧‧‧ touch sensing module

30, 60‧‧‧ Display Module

40, 70‧‧‧ cover

21, 51‧‧‧ substrate

201, 501‧‧‧ main body

222, 522‧‧‧Central District

224, 524‧‧‧ Peripheral area

202, 502‧‧‧Extension Department

2021, 5021‧‧‧ Connection

2022, 5022 ‧ ‧ State Department

2023, 5023‧‧‧Connecting pads

22, 52‧‧‧Touch electrode layer

221, 521‧‧‧ touch electrode

23, 53‧‧‧ route

24, 54‧‧‧ flexible circuit board

1‧‧‧ Smart Watch

3‧‧‧ Ontology

13‧‧‧Cable collection terminal

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 development view of the touch sensing module according to the first embodiment of the present invention.

3 is a schematic structural diagram of a touch display panel to which the touch sensing module of the first embodiment of the present invention is applied.

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

FIG. 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 a touch sensing module according to a preferred embodiment of the present invention.

Claims (10)

A touch sensing module includes a substrate, a touch electrode layer, and multiple traces. The improvement is that the substrate includes a main body portion and an epitaxial portion formed by an edge of the main body portion extending outward, and the touch electrode A layer is disposed on a surface of the main body portion, and the trace is electrically connected to the touch electrode layer located on the main body portion and extends to the epitaxial portion. The touch sensing module according to claim 1, wherein the number of the epitaxial portions is two or more, and each of the epitaxial portions is spaced from each other. The touch sensing module according to claim 2, wherein the number of the epitaxial portions is two, and the two epitaxial portions are distributed approximately symmetrically on both sides of the main body portion. The touch sensing module according to claim 2, wherein the traces are dispersedly disposed on a plurality of the epitaxial portions, and the width ratio of the traces on the plurality of epitaxial portions is disposed on the main body portion. The width of the traces is larger. The touch sensing module according to claim 1, wherein the main body includes a central area and a peripheral area surrounding the central area, and the touch sensing electrode layer is disposed in the central area, and the The touch sensing electrode layer includes a plurality of touch sensing electrodes arranged in a matrix; each of the touch electrodes is electrically connected to at least one trace, and the plurality of traces are connected to the plurality of touches. The electrodes are then collected in the peripheral region and extend from the peripheral region to the epitaxial portion. The touch sensing module according to claim 1, wherein: the epitaxial portion includes a connecting portion and a bonding portion connected to the connecting portion, the connecting portion is connected to the main body portion; and the bonding portion is provided on the bonding portion. There are multiple connection pads, and each connection pad is connected to a trace. The touch sensing module according to claim 6, wherein the touch sensing module further comprises a flexible circuit board, and the flexible circuit board and the wiring are electrically connected through the connection pad. A touch display panel includes a cover plate, a touch sensing module, and a display module that are sequentially stacked, wherein the touch sensing module is the touch sensor according to any one of claims 1-7. Test module. The touch display panel according to claim 8, wherein the extension portion is bent toward a side of the display module away from the touch sensing module. A smart watch includes a touch sensing module, wherein the touch sensing module is the touch sensing module according to any one of claims 1-7.