TWI635425B - Touch display device - Google Patents

Abstract

A touch display device includes a display module, a touch sensing film, and an electrostatic protection portion. The display module has a visible area, wherein the visible area is located on an upper surface of the display module. The touch sensing film covers the visible area and extends to cover one side surface of the display module. The electrostatic protection portion covers at least a portion of the touch sensing film located on a side surface of the display module, wherein the electrostatic protection portion has a conductive layer electrically connected to a lower surface of the display module.

Description

Touch display device

The disclosure relates to a touch display device, and more particularly to a touch display device having an electrostatic protection portion.

With the development of touch display technology, the quality of touch display devices continues to improve. As for a single touch display device, how to increase the screen utilization of the touch display device has always been one of the important topics. For example, mobile phones with narrow bezel designs are now mainstream in the market.

However, the width of the frame of the touch display device depends on the manufacturing process of the conductive circuit, and the current manufacturing processes of the conductive circuit, such as printing, laser, and yellow light, have also reached the bottleneck of the line width and pitch of the fine conductive circuit. Therefore, how to achieve the pursuit of extremely narrow bezels within the limits of the existing process technology of conductive circuits is really one of the issues that current R & D personnel are eager to solve.

The disclosure relates to a touch display device, which has a narrow bezel and good reliability.

An embodiment of the present disclosure includes a touch display device. The touch display device includes a display module, a touch sensing film, and an electrostatic protection portion. The display module has a visible area, wherein the visible area is located on an upper surface of the display module. The touch sensing film covers the visible area and extends to cover one side surface of the display module. The electrostatic protection portion covers at least a portion of the touch sensing film located on a side surface of the display module, wherein the electrostatic protection portion has a conductive layer electrically connected to a lower surface of the display module.

In some embodiments of the present disclosure, the display module has a metal frame, and the conductive layer is electrically connected to the metal frame.

In some embodiments of the present disclosure, the above-mentioned touch sensing film has a first part and a second part, the first part of the touch sensing film is substantially parallel to the side surface of the display module, and the first part of the touch sensing film is The two parts are located on the lower surface of the display module.

In some embodiments of the present disclosure, the above-mentioned touch display device further includes a gel, located between the display module and the touch sensing film.

In some embodiments of the present disclosure, the above-mentioned touch display device further includes a light transmitting plate, wherein the touch sensing film is located between the display module and the light transmitting plate.

In some embodiments of the present disclosure, one end of the conductive layer of the above-mentioned electrostatic protection part is in contact with the lower surface of the display module, and the other end is in contact with the light-transmitting plate.

In some embodiments of the present disclosure, the electrostatic protection part is a conductive tape, and includes an adhesive layer and an insulating layer. The adhesive layer covers the touch sensing film. The conductive layer is located between the touch sensing film and the insulating layer.

In some embodiments of the present disclosure, the thickness of the ESD protection portion ranges from 25 micrometers to 250 micrometers.

In some embodiments of the present disclosure, the conductive layer is a metal conductor layer or an organic compound conductor layer.

In some embodiments of the present disclosure, the touch sensing film is a flexible touch sensing film.

Based on the above, the touch display device of the embodiment of the present disclosure can achieve the pursuit of an extremely narrow frame by folding back the touch sensing film. In addition, the touch display device according to the embodiment of the present disclosure is configured to be electrically connected to the lower surface of the display module through the conductive layer of the electrostatic protection portion, so as to form a static discharge path, achieve the protection effect of electrostatic discharge, and avoid static Risk of Electro-Static Discharge (ESD). In addition, since the electrostatic protection part is covered with the touch sensing film, it can also have the function of protecting the touch sensing film. Thus, with the above configuration, the touch display device according to the embodiment of the present disclosure can achieve good reliability while being limited by the requirement of achieving an extremely narrow frame.

100, 200‧‧‧ touch display device

110‧‧‧Transparent board

120‧‧‧Shading element

130, 230‧‧‧ touch sensing film

131‧‧‧ Part I

132‧‧‧ Part Two

140‧‧‧ colloid

150‧‧‧Display Module

151‧‧‧metal frame

160‧‧‧Static protection department

161‧‧‧adhesive layer

163‧‧‧ conductive layer

165‧‧‧ Insulation

VA‧‧‧Viewable Area

US‧‧‧ top surface

SS‧‧‧Side surface

LS‧‧‧Lower surface

Read the following detailed description and the corresponding drawings to understand the various aspects of this disclosure. It should be noted that according to standard practice in the industry, multiple features are not drawn to scale. In fact, the dimensions of multiple features can be arbitrarily increased or decreased to facilitate clarity of discussion.

FIG. 1A is a schematic diagram of a touch display device according to an embodiment of the disclosure.

FIG. 1B is a partially enlarged schematic diagram of the ESD protection part in FIG. 1A.

FIG. 2 is a schematic diagram of a touch display device according to another embodiment of the disclosure.

Please refer to FIG. 1A and FIG. 1B. FIG. 1A is a schematic diagram of a touch display device 100 according to an embodiment of the present disclosure. FIG. 1B is a partially enlarged schematic diagram of the ESD protection portion 160 of FIG. 1A. As shown in FIG. 1A, the touch display device 100 of this embodiment includes a light transmitting plate 110, a light shielding element 120, a touch sensing film 130, a colloid 140, a display module 150, and an electrostatic protection portion 160. . In this embodiment, the light-transmitting plate 110 is, for example, a glass cover, the light-shielding element 120 includes an opaque insulating material, such as an ink, and the colloid 140 is, for example, an optical adhesive, but this disclosure is not limited thereto.

Specifically, as shown in FIG. 1A, in this embodiment, the touch sensing film 130 is located between the display module 150 and the transparent plate 110, and the colloid 140 is located between the display module 150 and the touch sensing film 130. For connecting the display module 150 and the touch sensing film 130. As shown in FIG. 1A, in this embodiment, the display module 150 has a visible area VA, where the visible area VA is located on an upper surface US of the display module 150. For example, in this embodiment, the boundary of the visible area VA may be defined by the light shielding element 120. As shown in FIG. 1A, in this embodiment, the way in which the light shielding element 120 defines the boundary of the visible area VA is that the inner edge of the light shielding element 120 is adjacent to the edge of the visible area VA.

As shown in FIG. 1A, in this embodiment, the touch sensing film 130 is a flexible touch sensing film, which can cover the visible area VA and extend to cover one side surface SS of the display module 150. For example, in this real In the embodiment, the touch sensing film 130 has a first portion 131 and a second portion 132, the first portion 131 of the touch sensing film 130 and the side surface SS of the display module 150 are substantially parallel, and the The second portion 132 is located on the lower surface LS of the display module 150.

Specifically, as shown in FIG. 1A, the touch sensing film 130 extends from the upper surface US of the display module 150 in a direction away from the display module 150 and then bends downward to form a first portion 131 of the touch sensing film 130. Then, the touch sensing film 130 extends along the side surface SS of the display module 150 and is bent in a direction close to the lower surface LS of the display module 150 to form a second portion 132 of the touch sensing film 130. In other words, in this embodiment, the touch sensing film 130 extends not only to cover the side surface SS of the display module 150 but also to the lower surface LS of the display module 150. However, this disclosure is not limited to this. In other embodiments, the touch sensing film 130 may cover only the side surface SS of the display module 150, but not the lower surface LS of the display module 150.

In this way, the touch display device 100 of this embodiment can reduce the width of the conductive lines at the edges of the touch sensing film 130 by folding back the touch sensing film 130, thereby reducing the visible area VA and the light transmitting plate. The distance between the edges of 110 is required, and the pursuit of extremely narrow borders can be achieved.

On the other hand, as shown in FIG. 1A and FIG. 1B, in this embodiment, the ESD protection portion 160 covers at least a portion of the touch sensing film 130 located on the side surface SS of the display module 150. For example, in this embodiment, the ESD protection portion 160 covers the first portion 131 and the second portion 132 of the touch sensing film 130. For example, in this embodiment, the thickness of the ESD protection portion 160 ranges from 25 micrometers to 250 micrometers. It should be noted that the above Each parameter range is only for illustration, and it is not used to limit the disclosure.

Further, as shown in FIG. 1B, in this embodiment, the ESD protection portion 160 is a conductive tape, and includes an adhesive layer 161, a conductive layer 163, and an insulating layer 165. The adhesive layer 161 covers the touch sensing film 130, and the conductive layer 163 is located between the touch sensing film 130 and the insulating layer 165. One end of the conductive layer 163 contacts the lower surface LS of the display module 150 and the other end contacts the transparent plate 110. In this embodiment, the conductive layer 163 is, for example, a metal conductor layer or an organic compound conductor layer, but the disclosure is not limited thereto.

Further, as shown in FIG. 1A and FIG. 1B, in this embodiment, the conductive layer 163 is electrically connected to the lower surface LS of the display module 150. For example, as shown in FIG. 1A and FIG. 1B, the display module 150 has a metal frame 151, and the conductive layer 163 is electrically connected to the metal frame 151 of the display module 150. In this way, the conductive layer 163 of the ESD protection part 160 and the metal frame 151 of the display module 150 will be able to form an electrostatic discharge path to achieve the protection effect of electrostatic discharge, thereby avoiding the risk of electrostatic discharge. In addition, since the electrostatic protection part 160 covers the touch-sensitive film 130, it can also have the function of protecting the touch-sensitive film 130. In this way, with the above-mentioned configuration, the touch display device 100 can achieve good reliability at the same time under the limitation of meeting the requirements of an extremely narrow frame.

FIG. 2 is a schematic diagram of a touch display device 200 according to another embodiment of the disclosure. Please refer to FIG. 2. The touch display device 200 of FIG. 2 is similar to the touch display device 100 of FIG. 1A, and the differences are as follows. As shown in FIG. 2, in this embodiment, the touch sensing film 230 extends from above the display module 150 in a direction away from the display module 150 and then bends downward. Only the side surface SS of the display module 150 is covered, and the lower surface LS of the display module 150 is not covered.

In this embodiment, the touch display device 100 can still reduce the width of the conductive lines at the edges of the touch sensing film 230 by folding back the touch sensing film 230, thereby reducing the visible area VA and the light transmitting plate. The distance between the edges of 110 is required, and the pursuit of extremely narrow borders can be achieved.

In addition, as shown in FIG. 2, the touch display device 100 of this embodiment can also be electrically connected to the configuration of the lower surface LS of the display module 150 through the conductive layer 163 of the electrostatic protection portion 160 to form static electricity. Discharge the path to achieve the protective effect of electrostatic discharge, thereby avoiding the risk of electrostatic discharge. In addition, since the electrostatic protection part 160 also covers the touch sensing film 230, it can also have the function of protecting the touch sensing film 230. In this way, with the above-mentioned configuration, the touch display device 100 of the embodiment of the present disclosure can also achieve good reliability under the limitation of achieving the requirement of an extremely narrow frame.

In summary, the touch display device according to the embodiment of the present disclosure can achieve the pursuit of an extremely narrow frame by folding back the touch sensing film. In addition, the touch display device according to the embodiment of the present disclosure is configured to be electrically connected to the lower surface of the display module through the conductive layer of the electrostatic protection portion, so as to form a static discharge path, achieve the protection effect of electrostatic discharge, and avoid static electricity. Risk of release. In addition, since the electrostatic protection part is covered with the touch sensing film, it can also have the function of protecting the touch sensing film. Thus, with the above configuration, the touch display device according to the embodiment of the present disclosure can achieve good reliability while being limited by the requirement of achieving an extremely narrow frame.

Claims (9)

A touch display device includes: a display module having a visible area, wherein the visible area is located on an upper surface of the display module; a touch sensing film covering the visible area and extending and covering A side surface of the display module; and an electrostatic protection portion covering at least a portion of the touch sensing film located on the side surface of the display module, wherein the electrostatic protection portion is a conductive tape, and wherein the electrostatic protection portion The part includes a conductive layer, an adhesive layer, and an insulating layer. The conductive layer is electrically connected to a lower surface of the display module. The adhesive layer covers the touch-sensitive film. The conductive layer is located between the touch-sensitive film and the touch-sensitive film. Between insulation layers. The touch display device according to item 1 of the patent application scope, wherein the display module has a metal frame, and the conductive layer is electrically connected to the metal frame. The touch display device according to item 1 of the application, wherein the touch sensing film has a first part and a second part, the first part of the touch sensing film and the side surface of the display module are substantially The upper part is parallel, and the second part of the touch sensing film is located on the lower surface of the display module. The touch display device according to item 1 of the scope of patent application, further includes a gel, located between the display module and the touch sensing film. The touch display device according to item 1 of the patent application scope further includes a light transmitting plate, wherein the touch sensing film is located between the display module and the light transmitting plate. The touch display device according to item 5 of the scope of patent application, wherein one end of the conductive layer of the electrostatic protection portion contacts the lower surface of the display module, and the other end contacts the light-transmitting plate. The touch display device according to item 1 of the scope of patent application, wherein the thickness of the electrostatic protection portion is between 25 micrometers and 250 micrometers. The touch display device according to item 1 of the application, wherein the conductive layer is a metal conductor layer or an organic compound conductor layer. The touch display device according to item 1 of the patent application scope, wherein the touch sensing film is a flexible touch sensing film.