TWI566072B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device.

The touch function is now widely used in electronic devices such as mobile phones and tablet computers to bring users an intuitive dialogue mode. The touch function is mainly connected to the touch driving component by the touch electrode, and the touch position is analyzed by the touch driving component. In order to achieve thinning and thinning of the touch device, the touch driving component can be directly disposed on the cover glass of the electronic device. However, due to the shielding of the light shielding layer on the cover glass, the manufacturer cannot observe the fitting condition of the touch driving member, and even if the fitting is abnormal, the repair cannot be performed in time, resulting in waste of resources and an increase in cost.

In view of this, it is necessary to provide an electronic device. The electronic device includes a touch module and a housing. The touch module is fixed to an inner surface of the housing. The touch panel includes a touch area and a non-touch area, the touch area includes a touch electrode, the non-touch area includes a wire and a touch driving component, and the touch electrode and the touch driving component Data transmission is achieved by electrical connection of wires. The electronic device further provides a light shielding layer at a position corresponding to the non-touch area of the touch module, and the light shielding layer is provided with a light transmitting structure corresponding to the position of the touch driving device.

Compared with the prior art, the electronic device of the present invention allows the manufacturer to observe the sticker of the touch driving component in time after the touch driving component is attached by means of the hole provided in the light shielding layer. The situation is combined to repair in time when the fitting is abnormal.

1‧‧‧Electronic device

10‧‧‧shell

20‧‧‧Touch Module

30‧‧‧Display module

11‧‧‧ Cover glass

12‧‧‧Lighting layer

21‧‧‧Touch electrode

22‧‧‧Wire

221‧‧‧Connecting mat

23‧‧‧Touch driver

231‧‧‧ pins

232‧‧‧Drive chip

24‧‧‧ anisotropic conductive adhesive

121‧‧‧Lighting hole

121a‧‧‧First light hole

121b‧‧‧second light hole

121c‧‧‧ third pass hole

A‧‧‧ touch area

B‧‧‧ non-touch area

1 is a schematic structural view of an electronic device according to a specific embodiment of the present invention.

2 is a schematic structural view of the touch module of FIG. 1.

Figure 3 is a schematic cross-sectional view along line V-V of Figure 2.

4 is a schematic view showing the distribution of light-passing holes in an electronic device according to an embodiment of the present invention.

Fig. 5 is a schematic view showing the positional deviation of the pin.

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

As shown in FIG. 1 , an electronic device 1 according to an embodiment of the present invention includes a housing 10 , a touch module 20 , and a display module 30 . The touch module 20 is fixed to the inner surface of the casing 10 , and the display module 30 is received in the casing 10 . The touch module 20 is configured to implement a touch function, the display module 30 is configured to implement a screen display function, and the housing 10 is configured to receive components to form a whole.

As shown in FIG. 2 and FIG. 3 , the housing 10 includes a cover glass 11 and a light shielding layer 12 , and the touch module 20 includes a touch electrode 21 , a wire 22 , and a touch driving component 23 . The touch panel 20 includes a touch area A and a non-touch area B. The touch area A includes a touch electrode 21, and the non-touch area B includes a wire 22 and a touch drive member 23. The light shielding layer 12 is disposed on the inner surface of the casing 10 together with the touch electrode 21, and specifically, is disposed on the cover glass 11. The light shielding layer 12 is disposed on the cover glass 11 at a position corresponding to the non-touch area B, and the wire 22 and the touch driving member 23 are disposed on the light shielding layer 12. The touch driving component 23 includes a driving die 232 and a pin 231 disposed on the driving die 232 as a signal contact. The guide One end of the line 22 adjacent to the touch driving member 23 includes a connection pad 221 corresponding to the pin 231 . The pin 231 is correspondingly attached to the connection pad 221 , and the other end of the wire 22 and the touch electrode 21 Connected. The touch electrodes 21 and the touch driving member 23 are electrically connected by wires 22 to realize data transmission. The touch driving device 23 is adhered to the light shielding layer 12 by an anisotropic conductive film (ACF) 24. Specifically, the driving wafer 232 is pasted by the anisotropic conductive adhesive 24. On the light shielding layer 12, the pins 231 are adhered to the connection pads 221 of the wires 22 by the anisotropic conductive adhesive 24. In the present embodiment, the width of the connection pad 221 is the same as the width of the pin 231. The light shielding layer 12 is provided with a light transmitting structure corresponding to the position of the touch driving member 23 . In this embodiment, the light-transmitting structure includes a plurality of circular light-passing holes 121. In other embodiments, the light-transmitting structure may be other shapes such as a square, a triangle, etc. The invention is not limited thereto. The bonding state of the pins 231 can be observed from the side of the cover glass 11 through the light-passing holes 121, for example, by means of a charge-coupled device (CCD) camera 2 or the like. The light passing hole 121 observes the fitting state of the pin 231.

The material of the light shielding layer 12 may be ink or other light shielding material. The touch electrode 21 may be formed by Indium Tin Oxides (ITO), may be formed by a very fine metal mesh (Metal Mesh), or may be formed by other materials. The material of the wire 22 may be a conductive metal or other material such as indium tin oxide.

It can be understood that the touch driving component 23 of the electronic device 1 provided by the embodiment of the present invention includes a plurality of pins 231 and a connection pad 221, and any one of the pins 231 and the connection pads 221 is selected therein. The apertures 121 are used to illustrate the invention.

As shown in FIG. 4, the light passing hole 121 includes a first light passing hole 121a, a second light passing hole 121b, and a third light passing hole 121c. The corner of the pin 231 is opposite to the first light-passing hole 121a, the position of the pin 231 is overlapped with the second light-passing hole 121b, and is located in the third light-passing hole 121c. In the area, it does not overlap with the third light passing hole 121c.

The first light-passing hole 121a and the second light-passing hole 121b can be used to observe the indentation of the conductive particles in the anisotropic conductive adhesive 24 to determine the bonding strength and the conductive state of the pin 231. Both the light-passing hole 121a and the third light-passing hole 121c can be used to observe whether or not the bonding position of the pin 231 is different. Since the width of the connection pad 221 is the same as the width of the pin 231 in the embodiment, when the bonding is normal, the pin 231 is blocked by the connection pad 221 and cannot be removed from the light-passing hole 121. see.

The position, size and arrangement of the light-passing holes 121 can be set according to the size and shape of the pins 231. Here, a rectangular pin 231 having a width of 60 μm is exemplified. In the present embodiment, the width of the pin 231 and the connection pad 221 is 60 micrometers, and each set of pins 231 and the connection pad 221 correspond to 21 light-passing holes 121, and the aperture of the light-passing hole 121 can be set. Between 5 micrometers and 10 micrometers, the spacing between adjacent light-passing apertures 121 can be set between 10 micrometers and 25 micrometers.

Specifically, the four corners of the pin 231 correspond to one first light-passing hole 121a (four in total), and the position of the pin 231 overlaps with the nine second light-passing holes 121b, of which four The second light passing holes 121b are located between the adjacent two first light passing holes 121a, and the other five second light passing holes 121b are evenly distributed in the first light passing holes 121a and the above four second through holes. The area enclosed by the light holes 121b. The four first light-passing holes 121a and the nine second light-passing holes 121b can be used to observe the indentation of the conductive particles in the anisotropic conductive paste 24 after bonding the pins 231 to determine the bonding of the pins 231. Strength and conductivity . The position of the pin 231 is located in a region surrounded by the eight third light-passing holes 121c and does not overlap with the third light-passing hole 121c. The third light-passing holes 121c are disposed in each of the first holes. A light-passing hole 121a is located away from the position of the pin 231. The eight third light-passing holes 121c can be attached to the pins 231 to observe whether or not the bonding positions of the pins 231 are different.

Since the pins 231 are attached, the corners thereof should be in the corresponding first light-passing holes 121a, and since the width of the connection pads 221 is the same as the width of the pins 231, the pins 231 are blocked by the connection pads 221. Therefore, when there is a deviation in the bonding position of the pin 231, the pin 231 cannot be completely blocked by the connecting pad 221, so that it may appear in the first light-passing hole 121a, and even when the deviation is severe, it may appear in the first The three-way light hole 121c. Therefore, whether the bonding position of the pin 231 is deviated can be determined by observing whether the pin 231 can be seen in the first light-passing hole 121a and the third light-passing hole 121c. For example, as shown in FIG. 5, when the pin 231 is present in the first light-passing hole 121a and the third light-passing hole 121c, it can be determined that the bonding position of the pin 231 is deviated, and the direction of the deviation It was also immediately informed. At the same time, it is possible to determine whether the bonding strength and the conductive state of the pin 231 are abnormal by observing the indentation of the conductive particles in the anisotropic conductive paste 24 in the first light-passing hole 121a and the second light-passing hole 121b.

In this way, the manufacturer can judge whether the bonding state of the pin 231 is abnormal by observing the indentation of the anisotropic conductive adhesive 24 and the position of the pin 231 through the light-passing hole 121 after the bonding is completed. Repair in time when there is an abnormality in the fit to avoid greater losses. At the same time, since the aperture of the light-passing hole 121 is only 5 to 10 micrometers, when the user uses the electronic device 1, the presence of the light-passing hole 121 is not visible to the naked eye, and the user is not brought to the user. Troubled. Moreover, the light-passing hole 121 and the light-shielding layer 12 can be formed by the same illumination to the mask without causing an increase in cost.

It can be understood that the number and arrangement of the light-passing holes 121 in the light-shielding layer 12 of the electronic device 1 provided by the present invention are not limited thereto, and the description of the 21 light-passing holes 121 for each of the pins 231 is only described. For ease of understanding, any embodiment for providing a viewing condition for observing the electronic device 1 on the light shielding layer 12 is within the scope of the present invention. In addition, the number and arrangement of the light-passing holes 121 corresponding to the pins 231 in the present invention may also be different, but may be adjusted according to the specific design.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art will be equivalently modified or changed according to the spirit of the present invention. It should be covered by the following patent application.

12‧‧‧Lighting layer

221‧‧‧Connecting mat

231‧‧‧ pins

121a‧‧‧First light hole

121b‧‧‧second light hole

121c‧‧‧ third pass hole

Claims (10)

An electronic device includes a touch module and a housing. The touch module is fixed on an inner surface of the housing. The touch module includes a touch area and a non-touch area. The control area includes a plurality of touch electrodes, the non-touch area includes a plurality of wires and a touch driving component, and the plurality of touch electrodes and the touch driving component are electrically connected by a plurality of wires to realize data transmission, and the electronic device A light shielding layer is disposed corresponding to the position of the non-touch area of the touch module, and the light shielding layer is disposed with a light transmitting structure corresponding to the position of the touch driving component. The electronic device of claim 1, wherein the touch driving component comprises a plurality of pins, and the one end of the plurality of wires adjacent to the touch driving component comprises a plurality of connecting pads corresponding to the plurality of pins The light transmissive structure is being disposed on the plurality of connection pads. The electronic device of claim 2, wherein the light transmissive structure comprises a plurality of light passing holes. The electronic device of claim 3, wherein the light transmissive structure comprises a plurality of first light passing holes, each of the corners of each of the pins facing a first light passing hole. The electronic device of claim 4, wherein the light transmissive structure further comprises a plurality of second light passing holes, the positions of each of the pins overlapping with the plurality of the second light passing holes. The electronic device of claim 4, wherein the light transmissive structure further comprises a plurality of third light passing holes, each of the pins being located at an area surrounded by the plurality of third light passing holes And does not overlap with any of the third light passing holes. The electronic device of claim 2, wherein the light shielding layer is directly formed on an inner surface of the casing, the connection pad is directly formed on a surface of the light shielding layer, and the touch driving component further comprises a driving chip The driving chip is connected to the light shielding layer by an anisotropic conductive adhesive, and the pin is electrically connected to the connection pad by an anisotropic conductive adhesive. The electronic device of claim 3, wherein the light-passing hole is a circular hole, and the light-passing hole The aperture is between 5 microns and 10 microns and the spacing between adjacent apertures is between 10 microns and 25 microns. The electronic device of claim 3, wherein the light-passing aperture and the light-shielding layer are formed by illumination of the same mask. The electronic device of claim 1, wherein the housing comprises a cover glass, and the light shielding layer and the touch electrode are disposed together on the cover glass.