TWM578418U - Touch display device - Google Patents

Abstract

A touch display device includes a display module and a touch sensing film. The display module includes a display panel and a curved structure. The display panel has a display surface, a back surface, and a side surface. The display surface is disposed opposite to the back surface. The side surface connects the display surface to the back surface. The curved structure has a curved surface opposite to the display panel. The touch sensing film is on the display surface of the display panel and extends along the curved surface of the curved structure.

Description

Touch display device

This creation is about a touch display device.

In recent years, with the development of touch panel technology, touch panels have been widely used in various electronic devices, such as mobile phones, laptop computers, and palmtop computers. The touch panel is generally integrated with the display panel as a touch display screen to serve as an input and output interface of the electronic device to achieve a touch display function. Accordingly, the user can touch the touch display screen through a finger or a touch object (such as a stylus) to control the electronic device to correspondingly operate the electronic device.

In order to enhance the user's visual effect, the design of the narrow bezel is becoming more and more important. However, due to the design of the wiring space of the touch panel, it is difficult to achieve a narrow frame.

In various embodiments of the present invention, by designing a flexible touch sensing film from the display surface of the display module to the rear surface, the trace of the touch panel can be disposed on the rear surface of the display module. Instead of showing the surface. Thereby, a narrow bezel design can be achieved. In addition, the display module has a curved side surface, so that the touch sensing film can be bent along the curved side surface, and the touch electrode is scratched. Risk and maintain its electrical properties to provide side touch.

According to some implementations of the present invention, the touch display device includes a display module and a touch sensing film. The display module includes a display panel and an arc structure. The display panel has a display surface, a rear surface, and a side surface, wherein the display surface is disposed opposite to the rear surface, and the side surface connects the display surface and the rear surface. The curved structure is disposed at least on a side surface of the display panel, wherein the curved structure has an arcuate surface opposite to the display panel. The touch sensing film is disposed on the display surface of the display panel and extends along the curved surface of the curved structure.

In some embodiments of the present invention, the touch sensing film extends to the rear surface of the display panel.

In some embodiments of the present invention, the touch sensing film is partially disposed on a rear surface of the display panel, and the length of the portion of the touch sensing film in one direction is greater than 2 mm, wherein the display panel and the curved structure are arranged in the direction. .

In some implementations of the present invention, the touch sensing film has a rear surface partially disposed on the display panel. The touch sensing film includes a plurality of touch electrodes and a plurality of traces, and the traces are respectively connected to the touch electrodes, wherein the traces are disposed on a portion of the touch sensing film.

In some implementations of the present invention, the touch sensing film has a rear surface partially disposed on the display panel. The touch display device further includes a pressure sensing layer disposed between the portion of the touch sensing film and the rear surface of the display panel.

In some implementations of the present invention, the display module further includes a frame for carrying the display panel, wherein the arc structure is connected to the frame.

In some embodiments of the present creation, the arc structure and the frame body Body shaping.

In some implementations of the present invention, the display module further includes a backlight module having a light emitting surface and a side surface, wherein the light emitting surface is adjacent to the rear surface of the display panel, and the side surface of the backlight module is connected to the light emitting surface of the backlight module, and is curved. The structure is further disposed on a side surface of the backlight module.

In some embodiments of the present invention, the touch sensing film has a first portion and a second portion, the first portion is disposed on the display surface of the display panel, and the second portion is disposed on the curved structure Curved surface. The touch display device further includes a cover plate and a fixing glue. The first part is disposed between the display panel and the cover. The fixing glue is connected to the second part of the touch sensing film and the cover.

In some implementations of the present invention, the touch display device further includes an optical colloid, and the optical colloid is connected to the first portion of the touch sensing film and the cover plate, wherein the fixing glue is connected to the optical colloid.

In some implementations of the present invention, the touch display device further includes an optical colloid and a protective layer. The optical colloid connects the display surface of the display panel and the first portion of the touch sensing film. The protective layer is disposed on the second portion of the touch sensing film.

In some implementations of the present invention, the touch display device further includes a cover, an optical colloid, and a protective layer. The optical colloid connects the first portion of the touch sensing film and the cover. The protective layer is disposed on the second portion of the touch sensing film.

100‧‧‧Touch display device

200‧‧‧ display module

200T‧‧‧ display surface

200B‧‧‧ rear surface

200S‧‧‧ curved side surface

210‧‧‧ display panel

210T‧‧‧ display surface

210B‧‧‧Back surface

210S‧‧‧ side surface

212‧‧‧Active component array substrate

214‧‧‧Color Filters

220‧‧‧Arc structure

220S‧‧‧ curved surface

230‧‧‧Backlight module

230T‧‧‧ shine surface

230S‧‧‧ side surface

240‧‧‧ frame

610‧‧‧Lighting layer

610O‧‧‧ openings

300‧‧‧Touch sensing film

300A, 300B, 300C‧‧‧ Section

310‧‧‧Substrate

310A, 310B‧‧‧ surface

322‧‧‧Touch electrode

324‧‧‧Touch electrode

326‧‧‧Connecting line

342‧‧‧Touch electrode

352‧‧‧Bridge wire

362‧‧‧Insulation block

400‧‧‧ cover

500‧‧‧Soft circuit board

710‧‧‧protection layer

720‧‧‧protection layer

800‧‧‧ Pressure Sensing Layer

900‧‧‧Roller

D1‧‧ Direction

N1‧‧ Direction

N2‧‧ Direction

A1‧‧‧ optical colloid

A2‧‧‧ optical colloid

A3‧‧‧ optical colloid

G1‧‧‧ fixing glue

G2‧‧‧ fixing glue

G3‧‧‧ fixing glue

DA‧‧‧ display area

NA‧‧‧Non-display area

1A is a cross-sectional view of a touch display device according to some embodiments of the present invention. Schematic diagram.

FIG. 1B is a top view of the touch display device of FIG. 1A.

2A-2D are schematic diagrams showing a manufacturing process of a touch display device according to some embodiments of the present invention.

3 is a cross-sectional view of a touch display device according to some embodiments of the present invention.

4 is a cross-sectional view of a touch display device in accordance with some embodiments of the present invention.

FIG. 5 is a cross-sectional view of a touch display device according to some embodiments of the present invention.

6 is a top plan view of a touch sensing film according to some embodiments of the present invention.

7 is a top plan view of a touch sensing film according to some embodiments of the present invention.

8A and 8B are schematic top views of a touch sensing film according to some embodiments of the present invention.

In the following, various embodiments of the present invention are disclosed in the drawings, and for the sake of clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not applied to limit the creation. That is to say, in the implementation part of this creation, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified manner.

FIG. 1A is a schematic cross-sectional view of a touch display device 100 according to some embodiments of the present invention. FIG. 1B is a top view of the touch display device 100 of FIG. 1A. The touch display device 100 includes a display module 200 , a touch sensing film 300 , and a cover 400 . The display module 200 includes a display panel 210, a backlight module 230, a curved structure 220, and a frame 240. The display panel 210 has a display surface 210T, a rear surface 210B, and a side surface 210S, wherein the display surface 210T is disposed opposite to the rear surface 210B, the display surface 210T faces the cover plate 400, and the side surface 210S can connect the display surface 210T and the rear surface 210B. The backlight module 230 has a light emitting surface 230T and a side surface 230S. The light emitting surface 230T is adjacent to the rear surface 210B of the display panel 210, and the side surface 230S of the backlight module 230 is connected to the light emitting surface 230T of the backlight module 230.

The curved structure 220 may be disposed on the side surface 210S of the display panel 210. In some embodiments, the curved structure 220 is disposed on the side surface 230S of the backlight module 230. The curved structure 220 has a curved surface 220S disposed relative to the display panel 210. The curved structure 220 can be made by molding, and the material thereof can be plastic, such as polyethylene terephthalate (PET), polycarbonate (Poly Carbonate; PC), polyethylene (Polyethylene; PE). Or a polymethyl methacrylate (PE), a cycloolefin polymer (COP ) is equal to a part of the embodiment, the frame 240 is used to carry the display panel 210 and the backlight module 230, and the curved structure 220 and The frames 240 can be connected. For example, the curved structure 220 and the frame 240 can be joined by a suitable adhesive material. The material of the frame may be a material with better rigidity, such as metal or plastic. In some embodiments, the curved structure 220 is the same material as the frame 240. Alternatively, in some embodiments, the curved structure 220 is different from the material of the frame 240. In some other embodiments, the curved structure 220 is the same material as the frame 2400 and is integrally formed, for example, by molding, and seamlessly and without other materials disposed therebetween.

In some implementations of the present invention, the touch sensing film 300 is disposed on the display surface 210T of the display panel 210 and extends along the curved surface 220S of the curved structure 220. The curved surface 220S can reduce the touch sensing. The touch electrodes on the film 300 are at risk of scratching during bending and maintain their electrical properties to provide side touch. In some implementations of the present invention, the touch sensing film 300 extends to the rear surface 210B of the display panel 210.

Specifically, the touch sensing film 300 has a three-part composition of 300A, 300B, and 300C, respectively. A portion 300A of the touch sensing film 300 is disposed on the display surface 210T of the display panel 210. In detail, a portion 300A of the touch sensing film 300 is disposed between the display panel 210 and the cover 400, and the cover 400 and the display panel 210 are respectively connected through the optical colloids A1 and A2.

In the present embodiment, the portion 300B of the touch sensing film 300 is disposed on the curved surface 220S of the curved structure 220. In some embodiments, the interface between the portions 300A and 300B of the touch sensing film 300 may be connected to the cover 400 by the fixing glue G2 so that the portion 300A of the touch sensing film 300 is not deformed by the bending of the portion 300B. In some embodiments, the fixing glue G2 can be in contact with the optical colloid A1. The portion 300B of the touch sensing film 300 can implement side touch. For example, on the smart device, the side touch portion 300B can be used as a home button or other touch button.

In this embodiment, a portion 300C of the touch sensing film 300 is provided. Placed on the rear surface 210B of the display panel 210. In some embodiments, the portion 300C of the touch sensing film 300 is fixed to the back surface of the display module 200 by the fixing glue G1. A portion 300C of the touch sensing film 300 can be connected to the flexible circuit board 500. The flexible circuit board 500 can be provided with a processing chip (not shown) to process the touch signal. In some embodiments, the fixing glue G3 can fix the flexible circuit board 500 to the back of the display module 200. In some embodiments, the back surface of the display module 200 (eg, the back surface of the backlight module 230) is adjacent to the portion 300C of the touch sensing film 300 and the flexible circuit board 500 may be pasted or plated with an anti-interference layer, such as electromagnetic wave shielding. Electromagnetic Interference Film, optical adhesive, high dielectric double-sided adhesive, etc., to prevent noise from interfering with touch signals.

In some embodiments, in order to avoid peeling of the touch sensing film 300 after the bending, the length of the portion 300C of the touch sensing film 300 in a direction D1 is greater than 2 mm. Here, the display panel 210 and the curved structure 220 are arranged in the direction D1.

In some embodiments, the optical colloids A1, A2 are composed of a viscous material having a high transmittance. For example, the optical colloids A1, A2 have a transmittance of greater than 60%, or even greater than 80%. In some embodiments, the fixing glue G1 is connected to the portion 300C of the touch sensing film 300 and the display module 200. In some embodiments, the fixing glues G1, G3 may be double-sided tape, optical glue or other suitable materials, and the fixing glue G2 is formed by dispensing, such as UV glue, wet glue or thermosetting glue. The materials of the fixing glues G1, G2 may be different from the materials of the optical colloids A1, A2. For example, the penetration of the fixing glues G1, G2 can be smaller than that of the optical colloids A1, A2. In some embodiments, the fixing glue G2 is connected to the optical colloid A1. It should be understood that the fixing glue G2 is not necessarily configured, and in some of the remaining embodiments, the fixing glue G2 may be omitted.

In some implementations of the present invention, the display panel 210 includes an active device array substrate 212, a color filter 214, and a display medium layer (not shown) interposed therebetween. The display medium layer is, for example, a liquid crystal layer, an organic light-emitting layer, or the like. The active device array substrate 212 may include a plurality of active components to control display dielectric layer characteristics to achieve a change in light and dark. The color filter 250 may include a plurality of arrays of color filter units, such as red, green, and blue color filter units, to adjust the color of the light. It should be understood that the color filter 250 is not necessarily provided. In some other embodiments, the color filter 250 can be omitted. In some embodiments, an optical colloid A3 is disposed between the display panel 210 and the backlight module 230 to connect the two and penetrate the light. The materials of the optical colloid A3 are as described above for the optical colloids A1 and A2, and are not described herein again.

In some embodiments of the present invention, the cover 400 may be a transparent inorganic substrate, such as a glass substrate, or a transparent organic substrate, such as a plastic substrate, such as polyethylene terephthalate. (Polyethylene terephthalate; PET), polycarbonate (Poly Carbonate; PC), polyethylene (Polyethylene; PE) or polymethylmethacrylate (PE). In some embodiments, the touch display device 100 further includes a light shielding layer 610 disposed adjacent to the side of the display module 200 of the cover 400. The light shielding layer 610 may be formed of an opaque ink such as black ink, white ink, or the like. For example, the light shielding layer has a transmittance of less than 20%. The light shielding layer 610 has an opening 610O for emitting light, thereby defining a display area DA and a non-display area NA.

2A to 2D are schematic diagrams showing a manufacturing process of the touch display device 100 according to some embodiments of the present invention.

Referring to FIG. 2A, first, a display module 200 having a display surface 200T, a curved side surface 200S, and a rear surface 200B is provided. In some embodiments, the display surface 200T may be a surface of the display surface 210T of the aforementioned display panel 210. In some embodiments, the curved side surface 200S can be the arcuate surface 220S of the arcuate structure 220 previously described. In some embodiments, the rear surface 200B may be a surface of the backlight module 230, the frame 240, or other components.

In some embodiments, at least the portion 300A of the touch sensing film 300 is first fixed on the display surface 200T of the display module 200. Specifically, the optical component A1 is attached to the portion 300A of the touch sensing film 300 and the cover 400, and the optical module A2 is attached to the display module 200 and the portion 300A of the touch sensing film 300.

Here, the fixing glue G1 is disposed on the rear surface 200B of the display module 200 to facilitate subsequent adhesion contact control of the sensing film 300. The fixing glue G1 can be disposed on the portion 300C of the touch sensing film 300 in other embodiments.

Referring to FIG. 2B , the roller 900 is pressed against the portion 300B of the touch sensing film 300 , and the portion 300B of the touch sensing film 300 is bent along the curved side surface 200S of the display module 200 . For example, the roller 900 applies a force to the curved side surface 200S in the direction N1 and rolls in the direction N2. The direction N1 is perpendicular to the curved side surface 200S, and the direction N2 may be parallel to the rear surface 200B, for example parallel to the aforementioned direction D1 (refer to FIG. 1). Here, during the bending process, the curved side surface 200S can maintain the touch sensing film 300 in the forward direction (for example, the direction N1), thereby avoiding scratching the touch electrode or affecting the electrical performance.

Referring to FIG. 2C, the roller 900 is rolled from the curved side surface 200S of the display module 200 to the rear surface 200B of the display module 200, and the portion 300C of the touch sensing film 300 is at least partially contacted with the fixing glue G1, thereby being fixed. On the rear surface 200B of the display module 200.

Referring to FIG. 2D , a portion 300C of the touch sensing film 300 can be flatly attached to the rear surface 200B of the display module 200 to obtain the touch display device 100 .

3 is a cross-sectional view of a touch display device 100 in accordance with some embodiments of the present invention. The difference between this embodiment and the embodiment of FIG. 1 is that in the present embodiment, the arc structure 220 is integrally formed with the frame body 240, which can be formed by the same film molding process. For example, the curved structure 220 and the frame 240 are both of the same material and are seamlessly connected. Other details of the present embodiment are substantially as described above and will not be described again.

4 is a cross-sectional view of a touch display device in accordance with some embodiments of the present invention. The difference between this embodiment and the embodiment of FIG. 1 is that in the present embodiment, the touch display device 100 further includes protective layers 710 and 720. The protective layers 710, 720 are disposed on portions of the touch sensing film 300 that are not in contact with the optical colloids A1, A2. For example, the protective layers 710, 720 are disposed on two opposite surfaces of the portion 300B of the touch sensing film 300. The protective layers 710, 720 may also extend to opposite surfaces of the portion 300C of the touch sensing film 300. The material of the protective layers 710, 720 may be a protective ink or other suitable material which may be formed by deposition, coating, or the like. The protective layer 720 can contact the curved surface 220S of the curved structure 220 to protect the touch electrodes on the portion 300B of the touch sensing film 300 during a bending process, such as a process of pressing a roller. Other details of this embodiment The section is roughly as described above and will not be described again.

FIG. 5 is a cross-sectional view of a touch display device according to some embodiments of the present invention. The difference between the embodiment and the embodiment of FIG. 1 is that, in the embodiment, the touch display device 100 further includes a pressure sensing layer 800, and the pressure sensing layer 800 is disposed on the portion 300C of the touch sensing film 300 and the display. Panel 210 is behind surface 210B. In some embodiments, the portion 300C of the touch sensing film 300 and the pressure sensing layer 800 can be used together to sense pressure. Specifically, the size of the pressure channel can be estimated by detecting changes in characteristics (eg, capacitance, resistance) of the touch sensing film 300 and the pressure sensing layer 800. For example, the pressure sensing layer 800 can include a pressure dielectric layer and an electrode layer interposed between the portion 300C and the electrode layer, and the thickness of the pressure dielectric layer varies with the applied pressure. Accordingly, the magnitude of the pressure rail can be estimated by measuring the change in capacitance between the electrode layer and the portion 300C of the touch sensing film 300. In some embodiments, the fixing glue G1 can be connected to the pressure sensing layer 800 and the display module 200. The fixing glue G1 can be used as an anti-interference layer to prevent noise from interfering with touch and pressure signals. Other details of the present embodiment are substantially as described above and will not be described again.

FIG. 6 is a top plan view of a touch sensing film 300 according to some embodiments of the present invention. The touch sensing film 300 of the present embodiment includes a single layer of touch electrodes. Specifically, the touch sensing film 300 includes a substrate 310 , a plurality of touch electrodes 322 , and a trace 330 . The touch electrodes 322 are disposed on the substrate 310, and the traces 330 respectively connect the touch electrodes 322 to the flexible circuit board 500. A processing chip (not shown) may be disposed on the flexible circuit board 500 to process the touch signals. In some implementations of the present invention, the touch electrode 322 is located at the portion 300A and the portion 300B, and the touch sensing of the portion 300A and the portion 300B is implemented. Large line 330 The portion is located at portion 300C and is disposed on the rear surface 210B of the display panel 210. Thereby, most of the traces 330 are not located in the portion 300A, and do not occupy the front surface of the display panel 210 (for example, the display surface 210T), thereby enabling the design of the narrow bezel. In some embodiments, the touch electrode 322 extends to the portion 300C and is also located at the portion 300C to improve the edge sensing effect of the portion 300B, so that the side touch effect is better.

FIG. 7 is a top plan view of a touch sensing film 300 according to some embodiments of the present invention. The difference between this embodiment and the embodiment of FIG. 6 is that the present embodiment includes two axial touch electrodes 322 and 324. Specifically, the touch sensing film 300 includes a substrate 310 and a plurality of touch electrodes 322 and 324 disposed on the substrate 310 . As shown in the figure, the touch electrodes 322 are arranged in a first axial direction, and the touch electrodes 324 are arranged in a second axial direction. The touch electrodes 322 and the touch electrodes 324 are mutually intersected and insulated from the same surface of the substrate 310. Specifically, the touch sensing film 300 includes a connection line 326 , a bridge wire 352 , and an insulating block 362 . The connection line 326 and the touch electrodes 322, 324 can be formed by patterning the same transparent electrode layer. The connection line 326 connects the adjacent touch electrodes 324. The bridge wire 352 connects the adjacent touch electrodes 322. The bridge wire 352 can be formed from a transparent or opaque conductive material. The bridge wire 352 can be composed of a metal, such as copper. The insulating block 362 is disposed between the connecting line 326 and the bridge wire 352 and separates the connecting wire 326 from the bridge wire 352 to electrically isolate the touch electrodes 322 and 324.

Similarly, in some implementations of the present invention, the touch electrodes 322, 324 may be located at the portion 300A and the portion 300B, and the trace 330 may be located at the portion 300C and disposed on the rear surface 210B of the display panel 210. Thereby, most of the traces 330 are not located in the portion 300A, and do not occupy the front table of the display panel 210. The face (for example, the display surface 210T), in turn, enables the design of a narrow bezel. In some embodiments, the touch electrodes 322, 324 are also located in the portion 300C.

8A and 8B are schematic top views of the touch sensing film 300 according to some embodiments of the present invention. The difference between the embodiment and the embodiment of FIG. 6 is that in the embodiment, the touch sensing film 300 includes two layers of touch electrodes. Specifically, the touch sensing film 300 includes a touch electrode 322 and a touch electrode 342 respectively disposed on the surface 310A and the surface 310B of the substrate 310. The touch electrodes 322 and the touch electrodes 322 are respectively connected to the conductive lines (not shown) of the peripheral area, and the touch signals are transmitted to the controller through the conductive lines of the peripheral areas for calculation, thereby determining the coordinates of the touch position. Although the touch electrodes 322 and 342 are disposed on two opposite surfaces of the same substrate 310, the scope of the present invention should not be limited. In other embodiments, the touch electrodes 322 and 342 may be disposed on different substrates. s surface.

Similarly, in some implementations of the present invention, the touch electrodes 322, 342 are also located in the portions 300A, 300B, and the traces 330 are located in the portion 300C and are disposed on the rear surface 210B of the display panel 210. Thereby, most of the traces 330 are not located in the portion 300A, and do not occupy the front surface of the display panel 210 (for example, the display surface 210T), thereby enabling the design of the narrow bezel. In some embodiments, the touch electrodes 322, 342 are also located in the portion 300C.

In some of the foregoing embodiments, the substrate 310 is a flexible substrate. In some embodiments, the bendable radius of the substrate 310 can be less than 1 mm, such as less than 0.5 mm. In particular, the flexibility of the substrate 310 can be higher than the flexibility of the cover 400. In some embodiments, the substrate 310 may be formed of a transparent inorganic substrate or a transparent organic substrate, such as glass or plastic, such as a plastic. The substrate is made of a material such as polyethylene terephthalate, polycarbonate, polyethylene or polymethyl methacrylate. In some embodiments, the material of the substrate 310 can be different than the material of the cover 400.

The touch electrodes 322, 324, 342 may be made of a transparent conductive material, and the transparent conductive material may be selected from one or a combination of the following groups: indium tin oxide (ITO), antimony tin oxide (ATO), Zinc oxide (ZnO), zinc dioxide (ZnO ₂ ), tin dioxide (SnO ₂ ), indium trioxide (In ₂ O ₃ ). Alternatively, the touch electrodes 322, 324, 342 may be metal meshes, and the material may be metal, such as silver or copper. In other embodiments, the touch electrodes 322, 324, and 342 may include graphene, nano silver, carbon nanotubes, or the like.

In various embodiments of the present invention, by designing a flexible touch sensing film from the display surface of the display panel to the rear surface, the trace of the touch panel can be disposed on the rear surface of the display panel. Non-display surface. Thereby, to achieve a narrow bezel design. In addition, the display module has a curved side surface, so that the touch sensing film can be bent along the curved side surface, reducing the risk of scratching the touch electrode and maintaining its electrical properties to provide side touch.

In some embodiments of the present invention, the present invention has been disclosed in various embodiments, and is not intended to limit the present invention. Any person skilled in the art can make various kinds without departing from the spirit and scope of the present invention. The changes and refinements of this creation are subject to the definition of the scope of the patent application.

Claims (12)

A touch display device includes: a display module comprising: a display panel having a display surface, a rear surface, and a side surface, wherein the display surface is disposed opposite the rear surface, the side surface connecting the display surface And the curved surface is disposed at least on the side surface of the display panel, wherein the curved structure has an arcuate surface opposite to the display panel: and a touch sensing film is disposed on the display panel The display surface extends along the curved surface of the arcuate structure. The touch display device of claim 1, wherein the touch sensing film extends to the rear surface of the display panel. The touch display device of claim 2, wherein the touch sensing film has a portion disposed on the rear surface of the display panel, and the length of the portion of the touch sensing film in one direction is greater than 2 Millimeter, wherein the display panel and the curved structure are arranged in the direction. The touch display device of claim 2, wherein the touch sensing film has a portion disposed on the rear surface of the display panel, the touch sensing film includes a plurality of touch electrodes and a plurality of The wires are respectively connected to the touch electrodes, and the wires are disposed on the portion of the touch sensing film. The touch display device of claim 2, wherein the touch sensing film has a portion disposed on the rear surface of the display panel, the touch display device further comprising: a pressure sensing layer, the pressure The sensing layer is disposed between the portion of the touch sensing film and the rear surface of the display panel. The touch display device of claim 1, wherein the display module further comprises: a frame for carrying the display panel, wherein the arc structure is connected to the frame. The touch display device of claim 6, wherein the curved structure is integrally formed with the frame. The touch display device of claim 1, wherein the display module further comprises: a backlight module having a light emitting surface and a side surface, wherein the light emitting surface is adjacent to the rear surface of the display panel, The side surface of the backlight module is connected to the light emitting surface of the backlight module, and the arc structure is further disposed on the side surface of the backlight module. The touch display device of claim 1, wherein the touch sensing film has a first portion and a second portion, the first portion being disposed on the display surface of the display panel, the second portion The curved display surface is disposed on the curved surface of the curved structure, and the touch display device further comprises: a cover plate, wherein the first portion is disposed between the display panel and the cover plate; and a fixing glue is connected to the second portion of the touch sensing film and the cover plate. The touch display device of claim 9, further comprising: an optical colloid, the optical colloid connecting the first portion of the touch sensing film and the cover, wherein the fixing glue is connected to the optical colloid . The touch display device of claim 1, further comprising: an optical colloid connecting the display surface of the display panel and a first portion of the touch sensing film; a protective layer disposed on the touch Controlling a second portion of the sensing film. The touch display device of claim 1, further comprising: a cover; and an optical colloid connecting the first portion of the touch sensing film and the cover, a protective layer disposed thereon The touch sensing film is on a second portion.