TW201716951A - Touch sensing display apparatus - Google Patents

Abstract

A Touch sensing display apparatus includes a touch sensing module, a protective layer and an electrostatic discharge protection assembler. The touch sensing module has an active area and a boundary area, the boundary area adjoins the active area. The protective layer is disposed opposite to the touch sensing module. The electrostatic discharge protection assembler is disposed between the protective layer and the touch sensing module, and located at a vertical projection of the boundary area along a composite direction of the protective layer and the touch sensing module. The electrostatic discharge protection assembler includes an electrostatic discharge protection component and a metal circuit component. The electrostatic discharge protection component is disposed on a surface of the touch sensing module facing the protective layer. The metal circuit component is disposed on a surface of the protective layer facing the touch sensing module. The protective layer is connected to the electrostatic discharge protection component through the metal circuit component.

Description

Touch display device

The present invention relates to a touch display device, and more particularly to a touch display device having an electrostatic charge vent circuit.

A common touch display device includes a protective layer, a touch sensing module, and a display module. In order to prevent electrostatic charges from accumulating in the touch display device, the touch signal sensing module has an influence on the electrical signal. The touch sensing module of the control display device is provided with an electrostatic discharge protection component and is located in the non-touch sensing area. It is true that the electrostatic protection component can quickly vent some of the accumulated electrostatic charge. However, since the material of the protective layer maintains the transmittance and the protection function, it is usually made of plastic or glass, which is easy to be rubbed when the user touches the touch display device. The protective layer generates an electrostatic charge, and the material that can be used for the protective layer is generally poor in electrical conductivity. Therefore, the electrostatic charge generated by the friction can only be vented by the electrostatic protection component disposed on the touch sensing module, but there is a poorly conductive adhesive layer between the protective layer and the electrostatic protection component. The electrostatic charge on the protective layer cannot be quickly vented to the system ground or other The place is constantly accumulating on the protective layer. When the electrostatic charge accumulates on the protective layer, the electrostatic discharge phenomenon will occur irregularly, affecting other electronic components in the touch display device, and accumulating electrostatic charges on the protective layer will cause the protective layer and the touch sensing module. The capacitive effect is generated, which affects the electrical signal transmission of the touch sensing module, and further reduces the sensitivity of the touch sensing module to the user's touch.

It can be seen that the above existing architecture obviously has inconveniences and defects, and needs to be further improved. In order to solve the above problems, the relevant fields have not exhausted their efforts to seek solutions, but the methods that have not been applied for a long time have been developed. Therefore, how to effectively solve the above problems is one of the current important research and development topics, and it has become an urgent target for improvement in related fields.

A technical aspect of the present invention relates to a touch display device, wherein a protective layer is provided with a metal circuit component, and the electrostatic protection component disposed on the touch sensing module is directly electrically connected to the metal circuit component, thereby The electrostatic charge accumulated on the protective layer can be quickly transmitted to the ESD protection component through the metal circuit component, and further transmitted to the system ground through the ESD protection component, thereby reducing or preventing the touch display device from being affected by the electrostatic charge. Produces phenomena such as electrostatic discharge or capacitive effects. In addition, since the metal circuit component and the static electricity protection component are electrically insulated from the circuit for touch sensing on the touch sensing module, the electrostatic sensing process does not affect the touch sensing module. Sensing signal transmission.

The present invention provides a touch display device including a touch sensing module, a protective layer, and an electrostatic protection component. Touch sensing module There is a sensing area and a peripheral area, and the surrounding area is adjacent to the sensing area. The protective layer is opposite to the touch sensing module. The electrostatic protection component is disposed between the touch sensing module and the protective layer, and is located on the vertical projection of the peripheral region along the stacking direction of the touch sensing module and the protective layer. The ESD protection component includes an ESD protection component and a metal circuit component. The electrostatic protection component is disposed on a surface of the touch sensing module facing the protective layer. The metal circuit component is disposed on the surface of the protective layer facing the touch sensing module, and the protective layer is connected to the static electricity protection component through the metal circuit component.

In some embodiments of the present invention, the touch sensing module further has a routing area, and the routing area and the peripheral area together surround the sensing area, and part of the static electricity protection component extends into the routing area.

In various embodiments of the present invention, the touch display device further includes a flexible circuit board. A part of the flexible circuit board is disposed on the wiring area of the touch sensing module, and the flexible circuit board includes an electrostatic protection circuit electrically connected to the electrostatic protection component and the system ground.

In the embodiment of the present invention, the touch sensing module includes a touch sensing film disposed at least on the sensing area of the touch sensing module, and the flexible circuit board further includes a touch sensing transmission line. The touch sensing film is electrically connected, and the touch sensing transmission line is electrically insulated from the static protection circuit.

In various embodiments of the present invention, a portion of the metal circuit component described above is disposed at a portion where the protective layer and the vertical portion of the wiring region overlap in the stacking direction.

In some embodiments of the present invention, the metal circuit component is disposed at a portion of the protective layer and the vertical projection of the wiring region along the stacking direction, and is electrically insulated from the touch sensing transmission line.

In various embodiments of the invention, the metal circuit component described above may be a ring structure.

In the embodiment of the present invention, the touch display device further includes an adhesive layer disposed between the touch sensing module and the protective layer and located on the sensing area of the touch sensing module.

In some embodiments of the present invention, the touch display device further includes an insulating material disposed on the peripheral region, and the insulating material is disposed between the electrostatic protection component and the sensing region of the touch sensing module.

The invention provides a touch display device, which comprises a touch sensing module, a display component, an electrostatic protection component and a conductive material. The touch sensing module has a sensing area and a peripheral area, and the peripheral area is adjacent to the sensing area. The display component includes a display module and a metal component. The display module is disposed on the sensing area of the touch sensing module. The metal component is adjacent to the surface of the display module away from the touch sensing module. The electrostatic protection component is disposed on a surface of the touch sensing module facing the display component and located in a peripheral area of the touch sensing module. The conductive material is disposed on the vertical projection of the peripheral region along the stacking direction of the touch sensing module and the display component, and electrically connects the static protection component and the metal component.

In various embodiments of the invention, a portion of the electrically conductive material extends into a portion of the metal component that coincides with a vertical projection of the sensing region in the direction of the stack.

In some embodiments of the present invention, the touch sensing module further has a routing area, and the routing area and the peripheral area together surround the sensing area, and part of the static electricity protection component extends into the routing area.

In various embodiments of the present invention, the touch display device further includes a flexible circuit board. A part of the flexible circuit board is disposed on the wiring area of the touch sensing module, and the flexible circuit board includes an electrostatic protection circuit electrically connected to the electrostatic protection component and the system ground.

In the embodiment of the present invention, the touch display device further includes a protective layer disposed on the surface of the touch detection module away from the display component, and the electrostatic protection component is connected through the touch detection module.

The invention provides a touch display device, which comprises a protective layer, a touch sensing module, a display component, a metal circuit component and a conductive material. The touch sensing module is opposite to the protective layer. The touch sensing module has a sensing area and a peripheral area. The peripheral zone abuts the sensing zone and includes at least one opening. The display component includes a display module and a metal component. The display module is disposed on a surface of the touch sensing module away from the protective layer. The metal component is adjacent to the surface of the display module away from the touch sensing module. The metal circuit component is disposed on a surface of the protective layer facing the touch sensing module. The metal loop component is located outside the vertical projection of the sensing region along the stacking direction of the touch sensing module and the display component. The conductive material is disposed on the surface of the protective layer facing the touch sensing module, and extends through the at least one opening in the stacking direction to electrically connect the metal circuit component and the metal component.

In various embodiments of the invention, a portion of the electrically conductive material extends into a portion of the metal component that coincides with a vertical projection of the sensing region in the direction of the stack.

In various embodiments of the present invention, the touch display device further includes an electrostatic protection component. The electrostatic protection component is disposed on the surface of the touch sensing module facing the protective layer and located on the peripheral area.

In various embodiments of the present invention, the above-mentioned static electricity protection element can be electrically connected to a conductive material.

In some embodiments of the present invention, the touch sensing module further has a routing area, and the routing area and the peripheral area together surround the sensing area, and part of the static electricity protection component extends into the routing area.

In various embodiments of the present invention, the touch display device further includes a flexible circuit board. A part of the flexible circuit board is disposed on the wiring area of the touch sensing module, and the flexible circuit board includes an electrostatic protection circuit electrically connected to the electrostatic protection component and the system ground.

100‧‧‧Touch display device

120‧‧‧Touch Sensing Module

122‧‧‧First electrostatic protection element

124‧‧‧Second electrostatic protection element

126‧‧‧Touch sensing film

140‧‧‧Protective layer

142‧‧‧Metal circuit components

160‧‧‧Electrostatic protection components

180‧‧‧Soft circuit board

190‧‧‧bonding layer

192‧‧‧Insulation

300‧‧‧Touch display device

320‧‧‧Touch Sensing Module

322‧‧‧Electrical protection components

326‧‧‧Touch sensing film

330‧‧‧Adhesive layer

340‧‧‧Display components

342‧‧‧ display module

344‧‧‧Metal parts

360‧‧‧Electrical materials

370‧‧‧ adhesive layer

380‧‧‧Soft circuit board

390‧‧‧protection layer

500‧‧‧Touch display device

520‧‧‧Touch Sensing Module

522‧‧‧Electrical protection components

526‧‧‧Touch sensing film

530‧‧‧Adhesive layer

540‧‧‧Display components

542‧‧‧Display module

544‧‧‧Metal parts

560‧‧‧Protective layer

562‧‧‧Metal circuit components

570‧‧‧ adhesive layer

580‧‧‧Soft circuit board

590‧‧‧Electrical materials

AA‧‧‧Sensing area

BA‧‧‧ surrounding area

D‧‧‧Stacking direction

LA‧‧‧Drop area

The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; .

Fig. 2 is a top perspective view of the touch display device according to the embodiment of Fig. 1, wherein the side view along the line segment 2-2' is the touch display device shown in Fig. 1.

3 is a side cross-sectional view of a touch display device in accordance with an embodiment of the present invention.

4 is a top perspective view of the touch display device according to the embodiment of FIG. 3, wherein the side view along the line segment 4-4' is the touch display device shown in FIG.

Figure 5 is a side cross-sectional view of a touch display device in accordance with one embodiment of the present invention.

Figure 6 is a top perspective view of the touch display device according to the embodiment of Figure 5, wherein the side view along the line segment 6-6' is the touch display device shown in Figure 5.

Unless otherwise indicated, the same numbers and symbols in the different figures are generally regarded as the corresponding parts. The illustrations are drawn to clearly illustrate the relevant associations of the embodiments and not to depict the actual dimensions.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

When an element is referred to as "on", it can generally mean that the element is directly on the other element, or that other element is present in the two. Conversely, when an element is referred to as being "directly on" another element, it cannot be. As used herein, the term "and/or" encompasses any combination of one or more of the listed associated items.

1 is a side cross-sectional view of a touch display device 100 according to an embodiment of the invention. As shown in FIG. 1 , the touch display device 100 includes a touch sensing module 120 , a protective layer 140 , and an electrostatic protection component 160 . In multiple realities In the embodiment, the touch sensing module 120 has a sensing area AA and a peripheral area BA. In various embodiments, the perimeter zone BA abuts the sensing zone AA. In other various embodiments, the perimeter zone BA surrounds the sensing zone AA. It should be noted that the sensing area AA and the peripheral area BA are not shown in actual size, and may extend along the stacking direction D to above or below the touch sensing module 120. In various embodiments, the protective layer 140 is disposed opposite to the touch sensing module 120 . In various embodiments, the protective layer 140 is disposed above the touch sensing module 120 . In various embodiments, the protective layer 140 can be glass, plastic, or other suitable material that is translucent and can protect components in the touch display device 100. The electrostatic protection component 160 is disposed between the touch sensing module 120 and the protective layer 140, and is located on the vertical projection of the peripheral area BA along the stacking direction D of the touch sensing module 120 and the protective layer 140. In various embodiments, the electrostatic protection component 160 partially located on the protective layer 140 can extend beyond the area of the protective layer 140 and the vertical projection of the touch sensing module 120 along the stacking direction D to increase the static electricity protection. The contact area of the component 160 with the protective layer 140. In various embodiments, the ESD protection assembly 160 includes a first ESD protection component 162 and a metal loop component 164. In various embodiments, the ESD protection assembly 160 can further comprise a conductive paste. The first static electricity protection component 162 is disposed on a surface of the touch sensing module 120 facing the protective layer 140 . In various embodiments, the first static protection element 162 can be a metal, alloy, or other suitable electrically conductive material. The metal circuit component 164 is disposed on the surface of the protective layer 140 facing the touch sensing module 120 . In various embodiments, metal circuit element 164 can be a metal, alloy, or other suitable electrically conductive material. In various embodiments, the metal loop component 164 can be formed on the protective layer 140 by coating, sputtering, or other suitable process. In various embodiments, the metal loop element 164 can be extended The contact area between the protective layer 140 and the touch sensing module 120 along the vertical direction of the stacking direction D is increased to increase the contact area between the static electricity protection component 160 and the protective layer 140, thereby further promoting the electrostatic protection component 160 to vent the protective layer. The efficiency of the accumulated electrostatic charge of 140. The protective layer 140 is electrically connected to the first static electricity protection element 162 through the metal circuit element 164 and vents the electrostatic charge accumulated on the protective layer 140 through the first static electricity protection element 162.

Since the touch display device 100 is provided with the static electricity protection component 160 between the touch sensing module 120 and the protective layer 140, the electrostatic charge accumulated on the protective layer 140 can be vented through the static electricity protection component 160. Furthermore, the electrostatic charge on the protective layer 140 is likely to cause an electrostatic charge in the case of friction due to the material used, and continuously accumulates the generated electrostatic charge without directly contacting other conductors. On the protective layer, the accumulated electrostatic charge is liable to cause an electrostatic discharge phenomenon, which affects other electronic components in the touch display device 100. Therefore, when the metal circuit component 164 is disposed on the protection layer 140, and the metal circuit component 164 is directly electrically connected to the first static electricity protection component 162 located on the touch sensing module 120, the touch sense can be traditionally relied on. In the design of the touch display device 100, the electrostatic charge accumulated by the protective layer 140 can be transferred to the first through the metal circuit component 164. The ESD protection component 162 is further transmitted to the system ground (not shown) by the first ESD protection component 162. In this way, the accumulated electrostatic charge can be quickly vented, and the influence of the electrostatic discharge on the electrical signal transmission in the touch display device 100 can be reduced.

In addition, the metal circuit component 164 and the first static electricity protection component 162 used in the touch display device 100 and the touch sensing module 120 are used. Electrically insulated circuit for touch sensing. Therefore, when the electrostatic charge is vented, the sensing signal transmission of the touch sensing module 120 is not affected. At the same time, the accumulated electrostatic charge may cause the capacitive effect of the touch sensing module 120 to increase, and reduce the sensitivity to user contact. The electrostatic protection component 160 can more quickly vent the electrostatic charge accumulated on the protective layer 140 to the outside of the sensing area AA of the touch sensing module 120, thereby avoiding or reducing the electrostatic charge accumulated by the protective layer 140, thereby reducing the touch feeling. The capacitive effect of the module 120 is measured and the sensitivity to user contact is increased. Specifically, as long as the metal circuit element 164 is in contact with the protective layer 140 and the first ESD element 162 and the protective layer 140 are electrically connected through the metal circuit element 164, the metal circuit element 164 and the first ESD element 162 may be Made of any shape or any conductive material.

In the embodiment of the present invention, the touch display device 100 further includes an adhesive layer 190 disposed between the touch sensing module 120 and the protective layer 140, and at least the sensing of the touch sensing module 120. In the area AA, the adhesive layer 190 is used to adhesively contact the sensing module 120 and the protective layer 140. In various embodiments, the adhesive layer 190 can be a light transmissive colloid layer. In various embodiments, the adhesive layer 190 can be an optical clear adhesive (OCA), a liquid optical clear adhesive (LOCA), an optical clear resin (OCR), or other light transmissive. And suitable material with viscous properties. In some embodiments, a portion of the adhesive layer 190 can extend into the peripheral area BA of the touch sensing module 120 .

In various embodiments, the touch display device 100 further includes a second static electricity protection component 124 disposed on the touch sensing module 120 and located in the adhesive layer 190 for venting accumulated electrostatic charge. In various embodiments, The second ESD protection component 124 is parallel to the first ESD protection component 162 and is also located on the peripheral area BA of the touch sensing module 120. That is, the second ESD protection device is also electrically insulated from the circuit for touch sensing on the touch sensing module 120, so that the touch sensing can be avoided when the electrostatic charge is transmitted through the second ESD protection device 124. The sensing signal transmission of the module 120 is affected.

In the embodiment of the present invention, the touch display device 100 further includes an insulating material 192 disposed on the peripheral area BA of the touch sensing module 120, and the insulating material 192 is at least located in the static electricity protection component 160 and the touch sensing device. Between the sensing areas AA of the module 120, the electrostatic protection component 122 is electrically connected to the sensing area AA. In addition, when the electrostatic charge is prevented from being vented through the electrostatic protection component 160, the circuit for touch sensing on the touch sensing module 120 is affected.

FIG. 2 is a top perspective view of the touch display device 100 according to the embodiment of the first embodiment, wherein the side view along the line segment 2-2' is the touch display device shown in FIG. 1. Referring to FIG. 2, in various embodiments of the present invention, the touch sensing module 120 further has a routing area LA, and the routing area LA and the surrounding area BA together surround the sensing area AA, and part of the first static electricity protection Element 162 extends into the routing area LA. In various embodiments, the second ESD protection element 124 extends into the routing area LA. In various embodiments of the present invention, a portion of the metal loop element 164 may be disposed at a portion of the protective layer 140 that coincides with the vertical projection of the trace region LA in the stacking direction D. That is, the metal loop element 164 extends into the trace area LA.

In various embodiments of the present invention, the touch display device 100 further includes a flexible printed circuit assembly (FPCA). At least a portion of the flexible circuit board 180 is disposed on the touch sensing module 120 The line area LA. In various embodiments, the flexible circuit board 180 can include a first static protection circuit 182 (not shown) electrically connected to the first static protection component 162 and the system ground (not shown). In various embodiments, the flexible circuit board 180 can further include a second ESD protection line 184 electrically connected to the second ESD protection component 124 and the system ground (not shown).

Referring to FIG. 1 , in various embodiments of the present invention, the touch sensing module 120 includes a touch sensing film 126 . The touch sensing film 126 is disposed at least on the sensing area AA of the touch sensing module 120. In various embodiments, the touch sensing film 126 can be an Indium Tin Oxide (ITO) film. In various embodiments, the touch sensing film 126 can be a metal mesh. In various embodiments, the material of the touch sensing film 126 may be indium tin oxide, silver or other suitable materials.

The flexible circuit board 180 further includes a touch sensing transmission line (not shown), electrically connected to the touch sensing film 126, and the touch sensing transmission line and the first static protection line 182 and the second static protection line 184 is electrically insulated to prevent the touch sensing transmission line from being received by the first static protection line 182 and the second static protection line 184 when the accumulated electrostatic charge is transmitted through the first static protection circuit 182 and the second static protection line 184. Current impact. In various embodiments, the touch sensing film 126 can include a touch sensing pattern (not shown), and the touch sensing pattern includes a plurality of touch line interfaces respectively corresponding to the touch sensing transmission lines. Electrical connection. In various embodiments, the touch sensing pattern is electrically insulated from the first static electricity protection element 162 and the second static electricity protection element 124 to prevent the accumulated electrostatic charge from passing through the first static electricity protection element 162. When the second static electricity protection element 124 is vented, the touch sensing transmission line is affected by the current in the first static electricity protection element 162 and the second static electricity protection element 124.

In various embodiments of the present invention, the metal loop element 164 may be disposed on a portion of at least a portion of the protective layer 140 that coincides with the vertical projection of the trace region LA in the stacking direction D, and with a metal located above the peripheral region BA. Loop element 164 maintains an electrical connection. In this way, the metal loop component 164 can electrically connect the accumulated electrostatic charge of the protective layer 140 located above the trace area LA to the first static protection component 162 through the metal loop component 164 to vent to the system ground. Further, substantially expanding the range in which the metal circuit element 164 can vent electrostatic charge on the protective layer 140 is limited by the material limitation of the protective layer 140, and the protective layer 140 is unable to rapidly transfer electrostatic charges to each other within the protective layer 140. An additional electrostatic protection component 160 is required to vent the electrostatic charge accumulated on the protective layer 140. In various embodiments, the metal circuit component 164 disposed on the portion of the protective layer 140 and the vertical projection of the routing region LA in the stacking direction D is electrically insulated from the touch sensing transmission line to avoid accumulation. When the electrostatic charge is transmitted through the metal loop element 164 to the first static protection element 162, the touch-sensing transmission line is affected by the current in the metal loop element 164. In various embodiments of the invention, the metal circuit element 164 can be a ring structure. In various embodiments of the present invention, the metal loop element 164 may have a notch in the annular structure, but it is desirable to maintain each portion of the metal loop element 164 electrically coupled to the first ESD element 162.

FIG. 3 is a side cross-sectional view showing the touch display device 300 according to an embodiment of the invention. According to FIG. 3 , the touch display device 300 includes a touch sensing module 320 , a display component 340 , an electrostatic protection component 322 , and a conductive material 360. In various embodiments, the touch display device 300 may further include a protective layer 390 disposed opposite to the touch sensing module 320, as will be described in detail later. In various embodiments, the protective layer 390 is disposed above the touch sensing module 320. The touch sensing module 320 has a sensing area AA and a peripheral area BA. In various embodiments, the perimeter zone BA abuts the sensing zone AA. In other various embodiments, the perimeter zone BA surrounds the sensing zone AA. It should be noted that the sensing area AA and the peripheral area BA are not shown in actual size, and may extend above or below the touch sensing module 320 in the stacking direction D. Display component 340 includes display module 342 and metal component 344. In various embodiments, the display module 342 can be a liquid crystal display module or other suitable display module. In various embodiments, the metal component 344 can be a metal plate. In various embodiments, the metal component 344 can be comprised of a metal or other electrically conductive material. The display module 340 is disposed on the sensing area AA of the touch sensing module 320. In various embodiments, the surface of the display module 340 can cover at least the sensing area AA of the touch sensing module 320. The metal component 344 is adjacent to the surface of the display module 342 away from the touch sensing module 320. In various embodiments, the metal component 344 can cover other surfaces of the display module 342 except the surface of the touch sensing module 320. The electrostatic protection component 322 is disposed on the surface of the touch sensing module 320 facing the display component 340 and located in the peripheral area BA of the touch sensing module 320 . In various embodiments, the ESD element 322 can be a metal, alloy, or other suitable electrically conductive material. The conductive material 360 is disposed on the vertical projection of the peripheral sensing area 320 along the stacking direction D of the touch sensing module 320 and the display component 340, and electrically connects the static electricity protection component 322 and the metal component 344, thereby accumulating the touch The electrostatic charge on the sensing module 320 can be transmitted to the conductive material 360 through the static electricity shielding element 322, and further, the electrostatic charge can be The conductive material 360 is transferred to the metal member 344 having a large area of metal to quickly vent the electrostatic charge accumulated on the touch sensing module 320. In various embodiments, the electrically conductive material 360 can be a conductive tape. In various embodiments, the electrically conductive material 360 can be made of a metal, alloy, or other electrically conductive material.

Since the touch display device 300 is provided with the electrostatic protection component 322 and the conductive material 360 between the touch sensing module 320 and the metal component 344, the electrostatic charge accumulated on the touch sensing module 320 can pass through the electrostatic protection component. 322 and conductive material 360 direct metal component 344 to vent. Further, the touch sensing module 320 does not directly contact the metal member 344, so that the electrostatic charge is easily accumulated. When the accumulated electrostatic charge increases, the electrostatic discharge phenomenon easily occurs, affecting other electronic components in the touch display device 300. . Therefore, in the touch display device 300, the electrostatic protection component 322 and the conductive material 360 are disposed on the peripheral area BA to electrically connect the metal component 344, so that the conventional touch sensing module 320 is accumulated due to the inability to contact the metal component 344. The electrostatic charge, in the design of the touch display device 300, can be quickly transmitted to the metal component 344 through the current path formed by the static electricity protection component 322 and the conductive material 360, and can be simultaneously transmitted to the system ground through the electrostatic protection component 322 (Fig. In this way, the influence of static electricity on the electrical signal transmission in the touch display device 300 can be reduced.

In addition, the electrostatic protection component 322 used in the touch display device 300 is electrically insulated from the circuit for touch sensing on the touch sensing module 320. Therefore, when the electrostatic charge is vented, the touch is not affected. The sensing signal transmission of the sensing module 320. At the same time, since the accumulated electrostatic charge causes the capacitance effect of the touch sensing module 320 to increase and the sensitivity to the user's contact is reduced, the current path formed by the static electricity protection element 322 and the conductive material 360 can be faster. The electrostatic charge accumulated on the touch sensing module 320 is quickly released to the sensing area AA of the touch sensing module 320, which can avoid or reduce the accumulated electrostatic charge of the touch sensing module 320 to reduce the touch. Control the capacitive effect of the sensing module and increase the sensitivity to user contact. In particular, as long as the ESD element 322 is electrically connected to the metal component 344, the electrically conductive material 360 can be made of any number, any shape, or any electrically conductive material.

In various embodiments of the invention, a portion of the electrically conductive material 360 may extend into a portion of the metal component 344 that coincides with the vertical projection of the sensing region AA in the stacking direction D to increase the area of contact of the electrically conductive material 360 with the metallic component 344. . In various embodiments, the touch display device 300 further includes a first adhesive layer 330 disposed between the touch sensing module 320 and the display module 340 for bonding the touch sensing module 320 and Display module 340.

4 is a top perspective view of the touch display device according to the embodiment of FIG. 3, wherein the side view along the line segment 4-4' is the touch display device shown in FIG. Referring to FIG. 4 , in various embodiments of the present invention, the touch sensing module 320 further has a routing area LA, and the routing area LA and the peripheral area BA together surround the sensing area AA, and a part of the static electricity protection component 322 Extends into the routing area LA. In various embodiments of the present invention, the touch display device 300 further includes a flexible circuit board 380. At least a portion of the flexible circuit board 380 is disposed on the routing area LA of the touch sensing module 120. In various embodiments, the flexible circuit board 380 can include an ESD protection line 382 (not shown) electrically connected to the ESD protection component 322 and the system ground (not shown).

Referring to FIG. 3 , in various embodiments of the present invention, the touch sensing module 320 includes a touch sensing film 326 . The touch sensing film 326 is at least set The sensing area of the touch sensing module 320 is on the sensing area AA. In various embodiments, the touch sensing film 326 can be an Indium Tin Oxide (ITO) film. In various embodiments, the touch sensing film 326 can be a metal mesh. In various embodiments, the material of the touch sensing film 326 may be indium tin oxide, silver or other suitable materials. The flexible circuit board 380 further includes a touch sensing transmission line (not shown), electrically connected to the touch sensing film 326, and the touch sensing transmission line is electrically insulated from the static protection circuit 382 to avoid accumulation. When the electrostatic charge is vented through the ESD line 382, the touch sensing transmission line is affected by the current in the ESD line 382. In various embodiments, the touch sensing film 326 can include a touch sensing pattern (not shown), and the touch sensing pattern includes a plurality of touch line interfaces respectively corresponding to the touch sensing transmission lines. Electrical connection. In various embodiments, the touch sensing pattern is electrically insulated from the static electricity protection element 322 to prevent the touch sensing transmission line from being subjected to current in the static electricity protection element 322 when the accumulated electrostatic charge is vented through the static electricity protection element 322. influences.

In various embodiments of the present invention, the touch display device 300 further includes a protective layer 390 disposed on the surface of the touch detection module 320 away from the display component 340 and connected to the electrostatic protection component through the touch detection module 320. 322. In various embodiments, the protective layer 390 can be glass, plastic, or other suitable material that is translucent and can protect components in the touch display device 300. In various embodiments of the present invention, the touch display device 300 may further include an adhesive layer 370 disposed between the touch sensing module 320 and the protective layer 390 for bonding the touch sensing module 320 and the protective layer. 390. In various embodiments, the protective layer 390 can be connected to the touch detection module 320 through the adhesive layer 370, and further connected to the static electricity protection component 322. In various embodiments, the adhesive layer 390 can be a light transmissive colloid Floor. In various embodiments, the adhesive layer 190 can be an optical clear adhesive (OCA), a liquid optical clear adhesive (LOCA), an optical clear resin (OCR), or other light transmissive. And suitable material with viscous properties.

FIG. 5 is a side cross-sectional view showing the touch display device 500 according to an embodiment of the invention. The touch display device includes a protective layer 560 , a touch sensing module 520 , a display component 540 , a metal loop component 562 , and a conductive material 590 . In various embodiments, the touch sensing module 520 has a sensing area AA and a peripheral area BA. In various embodiments, the perimeter zone BA abuts the sensing zone AA and includes at least one opening. In other various embodiments, the perimeter zone BA surrounds the sensing zone AA. It should be noted that the sensing area AA and the peripheral area BA are not shown in actual size, and may extend along the stacking direction D to above or below the touch sensing module 520. In various embodiments, the protective layer 560 is disposed opposite to the touch sensing module 520. In various embodiments, the protective layer 560 is disposed above the touch sensing module 520. In various embodiments, the protective layer 560 can be glass, plastic, or other suitable material that is translucent and can protect components in the touch display device 500. Display component 540 includes display module 542 and metal features 544. In various embodiments, the display module 542 can be a liquid crystal display module or other suitable display module. In various embodiments, the metal component 544 can be a metal plate. In various embodiments, the metal component 544 can be comprised of a metal or other electrically conductive material. The display module 540 is disposed on the sensing area AA of the touch sensing module 520. In various embodiments, the surface of the display module 540 can cover at least the sensing area AA of the touch sensing module 520. The metal component 544 is adjacent to the surface of the display module 342 away from the touch sensing module 520. In multiple implementations In the formula, the metal component 544 can cover the surface of the display module 542 except the surface of the touch sensing module 320. The metal circuit component 562 is disposed on the surface of the protective layer 560 facing the touch sensing module 520. In various embodiments, metal loop element 562 can be a metal, alloy, or other suitable electrically conductive material. In various embodiments, the metal loop component 562 can be formed on the protective layer 560 by coating, sputtering, or other suitable process. The metal loop component 562 is located outside the vertical projection of the sensing region AA along the stacking direction D of the touch sensing module 520 and the display component 540. In various embodiments, the metal loop component 562 can be located outside of the vertical projection of the touch sensing module 520 in the stacking direction D. The conductive material 590 is disposed on the surface of the protective layer 560 facing the touch sensing module 520 and extends along the at least one opening in the stacking direction D to electrically connect the metal circuit component 562 and the metal component 544. Thereby, the electrostatic charge accumulated on the protective layer 560 can be transmitted to the conductive material 360 through the metal circuit element 562, and further, the electrostatic charge can be transferred from the conductive material 590 to the metal member 544 having a large area of metal, The electrostatic charge accumulated on the protective layer 560 is quickly vented. In various embodiments, the electrically conductive material 590 can be a conductive tape. In various embodiments, the electrically conductive material 590 can be made of a metal, alloy, or other electrically conductive material.

Since the touch display device 500 is provided with the metal circuit element 562 and the conductive material 590 between the protective layer 560 and the metal member 544, the electrostatic charge accumulated on the protective layer 560 can be guided to the metal member through the metal circuit element 562 and the conductive material 590. 544 catharsis. Furthermore, the electrostatic charge accumulated by the protective layer 560 is likely to cause an electrostatic charge in the case of friction due to the material used, and continuously accumulates the generated electrostatic charge without directly contacting other conductors. Easily occur electrostatic discharge phenomenon, affecting touch display device 100 other electronic components. Therefore, the touch display device 500 is provided with the metal member 544 and the conductive material 590 to electrically connect the metal member 544, so that the conventional protective layer 560 is electrostatically charged due to the inability to contact the metal member 544, and the touch display device 500 is designed. The current path formed by the metal circuit element 562 and the conductive material 590 can be quickly transmitted to the metal member 544, and can be simultaneously transmitted to the system ground (not shown) by the electrostatic protection element 522. In this way, the influence of static electricity on the electrical signal transmission in the touch display device 500 can be reduced.

In addition, the metal circuit component 562 and the static electricity protection component 522 used in the touch display device 500 are electrically insulated from the circuit for touch sensing on the touch sensing module 520, so that when the electrostatic charge is vented, The sensing signal transmission of the touch sensing module 520 is affected. At the same time, since the electrostatic charge accumulated by the protective layer 560 causes the capacitive effect of the touch sensing module 520 to increase and the sensitivity to the user's contact is reduced, the current path formed by the metal loop component 562 and the conductive material 590 can be faster. The electrostatic charge accumulated on the protective layer 560 is vented to the outside of the sensing area AA of the touch sensing module 520, so that the accumulated electrostatic charge of the protective layer 560 can be avoided or reduced to reduce the interaction with the touch sensing module 520. Capacitance effects and increased sensitivity to user contact. In particular, as long as the metal circuit component 562 is electrically coupled to the metal component 544, the electrically conductive material 590 can be made of any number, any shape, or any electrically conductive material.

In various embodiments of the invention, a portion of the electrically conductive material 590 can extend into a portion of the metal feature 544 that coincides with the vertical projection of the sensing region AA in the stacking direction D to increase the area of contact of the electrically conductive material 590 with the metallic component 544. . In various embodiments, the touch display device 500 further includes a first adhesive layer 530 disposed between the touch sensing module 520 and the display module 540. The adhesive sensing module 520 and the display module 540 are used for adhesive contact. In various embodiments, the touch display device 500 further includes a second adhesive layer 570 disposed between the protective layer 560 and the touch sensing module 520 for bonding the protective layer 560 and the touch sensing. Module 520.

In various embodiments of the present invention, the touch display device 500 further includes an electrostatic protection component 522. The electrostatic protection component 522 is disposed on the surface of the touch sensing module 520 facing the protective layer 560 and located on the peripheral area BA. In various embodiments, the ESD element 522 can be a metal, alloy, or other suitable electrically conductive material. In various embodiments of the present invention, the ESD protection component 522 can be electrically connected to the conductive material 590. Thus, the electrostatic charge vented from the protective layer 560 along the conductive material 590 can be from the metal component 544 and the ESD protection component 522. Two ways to vent together.

FIG. 6 is a top perspective view of the touch display device according to the embodiment of FIG. 5, wherein the side view along the line segment 6-6' is the touch display device shown in FIG. 5. Referring to FIG. 6 , in various embodiments of the present invention, the touch sensing module 520 further has a routing area LA, and the routing area LA and the peripheral area BA together surround the sensing area AA, and a part of the static electricity protection component 522 Extends into the routing area LA. In various embodiments of the present invention, the touch display device 500 further includes a flexible circuit board 580. At least a portion of the flexible circuit board 580 is disposed on the routing area LA of the touch sensing module 520. In various embodiments, the flexible circuit board 580 can include an ESD protection line 582 (not shown) electrically connected to the ESD protection component 522 and the system ground (not shown).

Referring to FIG. 5 , in various embodiments of the present invention, the touch sensing module 520 includes a touch sensing film 526 . The touch sensing film 526 is at least set On the sensing area AA of the touch sensing module 520. In various embodiments, the touch sensing film 526 can be an Indium Tin Oxide (ITO) film. In various embodiments, the touch sensing film 526 can be a metal mesh. In various embodiments, the material of the touch sensing film 526 may be indium tin oxide, silver or other suitable materials. The flexible circuit board 580 further includes a touch sensing transmission line (not shown), electrically connected to the touch sensing film 526, and the touch sensing transmission line is electrically insulated from the static protection circuit 582 to avoid accumulation. When the electrostatic charge is vented through the ESD line 582, the signal in the touch sensing transmission line is affected by the current in the ESD line 582. In various embodiments, the touch sensing film 526 can include a touch sensing pattern (not shown), and the touch sensing pattern includes a plurality of touch line interfaces respectively corresponding to the touch sensing transmission lines. Electrical connection. In various embodiments, the touch sensing pattern is electrically insulated from the ESD element 522 and the metal loop element 562 to prevent touch sensing when accumulated electrostatic charge is transmitted through the ESD element 322 and the metal loop element 562. The electrical signal within the transmission line is affected by the current in the ESD element 522 and the metal loop element 562.

From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the touch display device provided by the present invention comprises an electrostatic protection component for electrically connecting the protective layer to the system ground or other venting electrostatic charge. Conductive components, such as metal components, allow the electrostatic charge accumulated on the protective layer to be quickly transmitted to the ESD protection component through the metal circuit component, and further transferred to the system ground through the ESD protection component, thereby reducing static electricity. The effect of charge on the touch display device. In addition, since the metal circuit component and the electrostatic protection component and the circuit for sensing and sensing on the touch sensing module are electrically Therefore, when the metal circuit component and the static electricity protection component vent the accumulated electrostatic charge, the sensing signal transmission of the touch sensing module is not affected.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Touch display device

120‧‧‧Touch Sensing Module

122‧‧‧First electrostatic protection element

124‧‧‧Second electrostatic protection element

126‧‧‧Touch sensing film

140‧‧‧Protective layer

142‧‧‧Metal circuit components

160‧‧‧Electrostatic protection components

190‧‧‧bonding layer

192‧‧‧Insulation

AA‧‧‧Sensing area

BA‧‧‧ surrounding area

D‧‧‧Stacking direction

Claims (20)

A touch display device includes: a touch sensing module having a sensing area and a peripheral area, the peripheral area is adjacent to the sensing area; and a protective layer is disposed opposite to the touch sensing module; An electrostatic protection component is disposed between the touch sensing module and the protective layer, and is located on the vertical projection of the peripheral sensing region of the touch sensing module and the protective layer. The ESD protection component includes: an ESD protection component disposed on a surface of the touch sensing module facing the protection layer; and a metal circuit component disposed on a surface of the protection layer facing the touch sensing module The protective layer connects the static protection element through the metal loop element. The touch display device of claim 1, wherein the touch sensing module further has a routing area, the routing area and the peripheral area together surrounding the sensing area, and part of the static electricity The protective element extends into the routing area. The touch display device of claim 2, further comprising a flexible circuit board, wherein the flexible circuit board is disposed on the routing area of the touch sensing module, the flexible circuit board includes a The ESD protection circuit electrically connects the ESD protection component to a system ground. The touch display device of claim 3, wherein the touch sensing module comprises a touch sensing film disposed at least on the sensing area of the touch sensing module, the softness The circuit board further includes a touch sensing transmission line electrically connected to the touch sensing film, and the touch sensing transmission line is electrically insulated from the static protection line. The touch display device of claim 4, wherein a portion of the metal circuit component is disposed at a portion of the protective layer that coincides with a vertical projection of the routing region along the stacking direction. The touch display device of claim 5, wherein the portion of the metal circuit component is electrically insulated from the touch sensing transmission line. The touch display device of claim 1, wherein the metal circuit component has a ring structure. The touch display device of claim 1, further comprising an adhesive layer disposed between the touch sensing module and the protective layer, and located in the touch sensing module On the survey area. The touch display device of claim 1, further comprising an insulating material disposed on the peripheral region, wherein the insulating material is at least located in the electrostatic protection component and the touch sensing module Between the districts. A touch display device includes: a touch sensing module having a sensing area and a peripheral area adjacent to the sensing area; a display component comprising: a display module disposed on the touch Controlling the sensing area of the sensing module; and a metal component adjacent to a surface of the display module away from the touch sensing module; an electrostatic protection component disposed on the touch sensing module a surface of the display component is located in the peripheral region of the touch sensing module; and a conductive material is disposed on the peripheral region along a vertical direction of the touch sensing module and the display component Projecting, and electrically connecting the ESD protection component to the metal component. The touch display device of claim 10, wherein a portion of the conductive material extends into a portion of the metal member that coincides with a vertical projection of the sensing region in the stacking direction. The touch display device of claim 10, wherein the touch sensing module further has a routing area, the routing area and the peripheral area surrounding the sensing area, and part of the static electricity The protective element extends into the routing area. The touch display device of claim 12, further comprising a flexible circuit board, wherein the flexible circuit board is disposed on the touch The flexible circuit board includes an electrostatic protection circuit electrically connected to the electrostatic protection component and a system ground. The touch display device of claim 10, further comprising a protective layer disposed on a surface of the touch detection module remote from the display component and connected to the touch detection module Electrostatic protection components. A touch display device includes: a protective layer; a touch sensing module disposed opposite to the protective layer, the touch sensing module having a sensing area and a peripheral area, the peripheral area abutting the feeling a display unit, comprising: at least one opening; a display component comprising: a display module disposed on a surface of the touch sensing module away from the protective layer; and a metal component adjacent to the display module a surface of the touch sensing module; a metal circuit component disposed on the surface of the protective layer facing the touch sensing module, and located in the sensing area along the touch sensing module and the display And a conductive material disposed on the surface of the protective layer facing the touch sensing module, and extending through the at least one opening along the stacking direction, electrical The metal circuit component and the metal component are connected. The touch display device of claim 15, wherein a portion of the conductive material extends into a portion of the metal component that coincides with a vertical projection of the touch sensing module. The touch display device of claim 15 further comprising an electrostatic protection component disposed on a surface of the touch sensing module facing the protective layer and located on the peripheral region. The touch display device of claim 17, wherein the static electricity protection element is electrically connected to the conductive material. The touch display device of claim 17, wherein the touch sensing module further has a routing area, and the routing area and the peripheral area surround the sensing area, and part of the static electricity The protective element extends into the routing area. The touch display device of claim 19, further comprising a flexible circuit board, wherein the flexible circuit board is disposed on the routing area of the touch sensing module, the flexible circuit board includes a The ESD protection circuit electrically connects the ESD protection component to a system ground.