TWI810849B - Display device and assembly method thereof - Google Patents

Abstract

A display device includes a display substrate, a circuit board, at least one conductive pad, at least one double-sided tape, at least one conductive foam tape and a cover. The display substrate has a first region and at least one second region adjacent to the first region. The circuit board is at least partially disposed on the first region. The conductive pad is disposed on a first surface of the circuit board away from the display substrate. The double-sided tape is disposed on the second region. The conductive foam tape is disposed on the double-sided tape and the conductive pad. The cover includes a light-transmitting substrate and at least one conductive layer. The light-transmitting substrate includes a second surface facing to the display substrate. The conductive layer at least partially covers the second surface. The conductive foam tape is electrically connected with the conductive layer and the conductive pad.

Description

Display device and assembly method thereof

The present invention relates to a display device and its corresponding assembly method, and in particular to a display device capable of measuring pulse and its assembly method.

With the progress of the times, people's material life has become richer than ever before. At the same time, people also realize that health is also a kind of precious wealth. Therefore, today's consumers generally attach great importance to health preservation and are always concerned about their physical condition.

In order to grasp this growing market, manufacturers of electronic products have invested resources to develop products that allow consumers to know their physical conditions conveniently and effectively.

One of the objectives of the present invention is to provide a display device that can more reliably transmit a user's electrocardiogram signal.

According to an embodiment of the present invention, a display device includes a display substrate, a circuit board, at least one conductive pad, at least one first double-sided tape, at least one conductive foam tape, and a cover plate. The display substrate has a first region adjacent to each other and at least one second region. The circuit board is at least partially disposed in the first area. The conductive pad is arranged on the first surface of the circuit board facing away from the display substrate. The first double-sided adhesive tape is disposed on the second area. The conductive foam tape is disposed on the first double-sided tape and the conductive pad. The cover plate includes a transparent substrate and at least one conductive layer. The transparent substrate includes a second surface facing the display substrate. The conductive layer at least partially covers the second surface. The conductive foam tape electrically connects the conductive layer and the conductive pad.

In one or more embodiments of the present invention, the above-mentioned conductive foam tape includes conductive foam and conductive double-sided tape. The conductive foam abuts against the first double-sided tape and the conductive pad. The conductive double-sided tape is connected between the conductive foam and the conductive layer.

In one or more embodiments of the present invention, the above-mentioned conductive double-sided adhesive tape includes a conductive substrate, a first adhesive layer, and a second adhesive layer. The conductive substrate includes opposite first sides and second sides. The first adhesive layer is disposed on the first side and configured to adhere to the conductive layer. The second adhesive layer is disposed on the second side and configured to adhere to the conductive foam.

In one or more embodiments of the present invention, the above-mentioned first double-sided adhesive tape includes a first base material, a third adhesive layer and a fourth adhesive layer. The first substrate includes opposite third sides and fourth sides. The third adhesive layer is disposed on the third side and configured to adhere to the conductive foam. The fourth adhesive layer is disposed on the fourth side and configured to adhere to the display substrate.

In one or more embodiments of the present invention, the number of the above-mentioned second regions is two, and the first region is located between the second regions. There are two first double-sided adhesive tapes, and the first double-sided adhesive tapes are respectively arranged in the corresponding second regions. The number of the conductive pads is two, and the conductive pads are separated from each other. The quantity of the conductive foam tapes is two, and the conductive foam tapes are separated from each other, and are respectively arranged on the corresponding first double-sided tapes and the corresponding conductive pads. The number of conductive layers is two, and the conductive layers are separated from each other and electrically connected to corresponding conductive foam tapes respectively.

In one or more embodiments of the present invention, the above-mentioned conductive foam tape includes conductive foam and conductive double-sided tape. The conductive foam abuts against the corresponding first double-sided tape and the corresponding conductive pad. The conductive double-sided adhesive tape is connected between the corresponding conductive foam and the corresponding conductive layer.

In one or more embodiments of the present invention, the above display device further includes a second double-sided adhesive tape. The second double-sided adhesive tape is located between the conductive pads and connected between the conductive foam and the circuit board.

In one or more embodiments of the present invention, the above-mentioned second double-sided adhesive tape includes a second base material, a fifth adhesive layer, and a sixth adhesive layer. The second substrate includes opposite fifth sides and sixth sides. The fifth adhesive layer is disposed on the fifth side and configured to adhere to the conductive foam. The sixth adhesive layer is disposed on the sixth side and configured to adhere to the circuit board.

One of the objectives of the present invention is to provide an assembly method of a display device, which can simplify the assembly process of the display device and improve its efficiency.

According to an embodiment of the present invention, a method for assembling a display device includes: (1) providing a display substrate, the display substrate has a first region and a plurality of second regions, the first region is located between the second regions, and the circuit board is at least partially Set in the first area, the circuit board is provided with a plurality of conductive pads, the conductive pads are separated from each other and arranged on the surface of the circuit board away from the display substrate; (2) providing a first auxiliary part equipped with a plurality of first double-sided adhesive tapes; (3) Assembling the first auxiliary part on the display substrate, so that the first double-sided tape adheres to the corresponding second area; (4) Remove the first auxiliary part, so that the first double-sided tape is separated from the first auxiliary part; ( 5) Provide a second auxiliary part configured with a plurality of conductive foam tapes; (6) Assemble the second auxiliary part on the display substrate, so that the conductive foam tape adheres to the corresponding first double-sided tape and electrically connects the corresponding the conductive pad; and (vii) removing the second auxiliary piece so that the conductive foam tape is detached from the second auxiliary piece.

In one or more embodiments of the present invention, the above step of providing the second auxiliary member equipped with conductive foam tape, the conductive foam tape includes conductive foam and conductive double-sided tape, and the conductive double-sided tape connects the second Accessories and conductive foam.

In one or more embodiments of the present invention, the above-mentioned assembly method further includes: (8) Covering the display substrate with a cover plate, so that a plurality of conductive layers of the cover plate are respectively connected to corresponding conductive double-sided adhesive tapes.

In one or more embodiments of the present invention, the above-mentioned step of providing the first auxiliary member equipped with the first double-sided tape includes the first base material, the first adhesive layer and the second adhesive layer. The first substrate includes opposite first sides and second sides. The first adhesive layer is disposed on the first side and connected to the first auxiliary component. The second adhesive layer is disposed on the second side.

In one or more embodiments of the present invention, the above-mentioned assembling method further includes: (9) providing a first auxiliary part equipped with a second double-sided adhesive tape; (10) assembling the first auxiliary part on the display substrate, so that The second double-sided tape adheres to the circuit board and is located between the conductive pads; and (11) removing the first auxiliary part, so that the second double-sided tape is separated from the first auxiliary part. The assembling method further includes: (12) Assembling the second auxiliary part on the display substrate, so that the conductive foam is respectively adhered to the second double-sided tape.

In one or more embodiments of the present invention, the above-mentioned step of providing the first auxiliary member equipped with the second double-sided tape includes the second base material, the third adhesive layer and the fourth adhesive layer. The second substrate includes opposite third sides and fourth sides. The third adhesive layer is disposed on the third side and connected to the first auxiliary part. The fourth adhesive layer is disposed on the fourth side.

The foregoing embodiments of the present invention have at least the following advantages:

(1) Since the conductive foam and the conductive pad are in direct contact, it is conducive to the conductivity between the two. Moreover, since the conductive double-sided tape is only located on one side of the conductive foam and not on the other side, the conductive foam tape has better compressibility, which further helps to improve the conductivity of the conductive foam tape, and the user The ECG signal will be more easily transmitted through the conductive layer, conductive foam tape, conductive pad and circuit board to the system where the signal is connected to the circuit board for subsequent recording and analysis.

(2) Since the first double-sided tape is adhered to the second area of the display substrate by the first pair of auxiliary parts on the display substrate, and the conductive foam tape is attached to the display substrate by the second pair of auxiliary parts The first double-sided adhesive tape is also electrically connected to the conductive pads, so that the assembly process of the display device becomes more accurate and quicker, and the assembly efficiency of the display device is also significantly improved.

Several embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some commonly used structures and elements will be shown in a simple schematic way in the drawings, and in all the drawings, the same reference numerals will be used to represent the same or similar elements . And if possible in practice, the features of different embodiments can be used interchangeably.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have their ordinary meanings that can be understood by those skilled in the art. Furthermore, the definitions of the above-mentioned words in the commonly used dictionaries should be interpreted in the content of this specification as meanings consistent with the relevant fields of the present invention. Unless specifically defined, these terms are not to be interpreted in an idealized or overly formal sense.

Please refer to Figures 1 and 2. FIG. 1 is a top view showing a display device 100 according to an embodiment of the present invention. FIG. 2 is a partial perspective bottom view of the display device 100 shown in FIG. 1 . As shown in FIGS. 1-2 , the present invention provides a display device 100 . For example, the display device 100 can be a carry-on display device, and can allow users to measure their electrocardiogram signals. The specific structure of the display device 100 is described in detail as follows.

Please refer to Figures 3 and 4. FIG. 3 is a front view of the display device 100 shown in FIG. 1 , wherein the thickness of the cover plate 160 is shown in an exaggerated scale. Fig. 4 is a partially enlarged cross-sectional view along line A-A in Fig. 1 . In this embodiment, as shown in Figures 1 to 4, the display device 100 includes a display substrate 110, a circuit board 120, at least one conductive pad 130, at least one first double-sided adhesive tape 140, at least one conductive foam adhesive tape 150 and cover plate 160 . The display substrate 110 has a first region Z1 and at least one second region Z2 adjacent to each other. Specifically, the first zone Z1 and the second zone Z2 are located at the periphery of the display substrate 110 and arranged along the side of the display substrate 110 . The circuit board 120 is at least partially disposed in the first zone Z1 , and the first zone Z1 can actually be a wire-out area of the display substrate 110 . The conductive pad 130 is disposed on the first surface 121 of the circuit board 120 facing away from the display substrate 110 . The first double-sided adhesive tape 140 is disposed in the second zone Z2. The conductive foam tape 150 is disposed on the first double-sided tape 140 and the conductive pad 130 . The cover plate 160 includes a transparent substrate 161 and at least one conductive layer 162 . The transparent substrate 161 can be, for example, a glass plate, and includes a second surface 163 facing the display substrate 110 and a third surface 164 away from the display substrate 110 . The conductive layer 162 at least partially covers the peripheral area of the transparent substrate 161 and at least partially covers the second surface 163 and the third surface 164 . The conductive foam tape 150 is at least partially located between the second surface 163 of the transparent substrate 161 and the conductive pad 130 , and is electrically connected to the conductive layer 162 and the conductive pad 130 .

In a practical application, for example, the circuit board 120 may be a flexible printed circuit board (Flexible Printed Circuit; FPC) or a chip on film (Chip On Film; COF). More specifically, if the display device 100 is a Liquid Crystal Display (LCD), the circuit board 120 can be connected to the lower substrate of the display module. If the display device 100 is an organic light-emitting diode (Organic Light-Emitting Diode; OLED) display or a microscopic light-emitting diode (Microscopic Light-Emitting Diode; micro-LED) display, the circuit board 120 can be connected to the display panel with Circuit substrate of thin film transistor (Thin Film Transistor; TFT) or microchip (Micro-chips).

As mentioned above, since the conductive layer 162 at least partly covers the third surface 164 of the light-transmitting substrate 161, when the user touches the conductive layer 162 covering the third surface 164 with, for example, a finger, the user's ECG signals can pass sequentially. The conductive layer 162 , the conductive foam tape 150 , the conductive pad 130 and the circuit board 120 are transmitted to a signal connection system (not shown) of the circuit board 120 for subsequent recording and analysis.

Specifically, as shown in FIG. 4 , the conductive foam tape 150 includes a conductive foam 151 and a conductive double-sided tape 152 . The conductive foam 151 abuts against the first double-sided adhesive tape 140 and the conductive pad 130 , and the conductive double-sided adhesive tape 152 is connected between the conductive foam 151 and the conductive layer 162 . In other words, the conductive foam 151 is in direct contact with the conductive pad 130 , thus facilitating the electrical conductivity between the two. Moreover, since the conductive double-sided tape 152 is only located on one side of the conductive foam 151 and not on the other side, the conductive foam tape 150 has better compressibility, which further helps to improve the conductivity of the conductive foam tape 150 .

Furthermore, as shown in FIG. 4 , the conductive double-sided adhesive tape 152 of the conductive foam tape 150 includes a conductive substrate 153 , a first adhesive layer 154 and a second adhesive layer 155 . The conductive substrate 153 includes a first side 156 and a second side 157 opposite to each other. The first adhesive layer 154 is disposed on the first side 156 of the conductive substrate 153 and configured to adhere the conductive layer 162 of the cover plate 160 . The second adhesive layer 155 is disposed on the second side 157 of the conductive substrate 153 and configured to adhere the conductive foam 151 of the conductive foam tape 150 . In practical application, the conductive substrate 153 , the first adhesive layer 154 and the second adhesive layer 155 are all conductive materials.

In addition, as shown in FIG. 4 , the first double-sided adhesive tape 140 includes a first base material 141 , a third adhesive layer 142 and a fourth adhesive layer 143 . The first substrate 141 includes a third side 144 and a fourth side 145 opposite to each other. The third adhesive layer 142 is disposed on the third side 144 of the first substrate 141 and configured to adhere the conductive foam 151 of the conductive foam tape 150 . The fourth adhesive layer 143 is disposed on the fourth side 145 of the first substrate 141 and configured to adhere to the display substrate 110 . In practical applications, the first base material 141 , the third adhesive layer 142 and the fourth adhesive layer 143 may be made of conductive materials, or may be made of non-conductive materials according to actual conditions.

Furthermore, in practical applications, as shown in FIG. 4 , there are two second zones Z2, and the first zone Z1 is located between the second zones Z2. The quantity of the first double-sided adhesive tape 140 is also two, and the first double-sided adhesive tape 140 is respectively disposed in the corresponding second area Z2. The number of the conductive pads 130 is also two, and the conductive pads 130 are separated from each other. The number of conductive foam tapes 150 is also two, and the conductive foam tapes 150 are separated from each other, and are respectively disposed on the corresponding first double-sided tape 140 and the corresponding conductive pad 130 . The number of conductive layers 162 is also two, and the conductive layers 162 are separated from each other and electrically connected to the corresponding conductive foam tapes 150 .

Further, in this embodiment, as shown in FIG. 4, the conductive foam 151 abuts the corresponding conductive pad 130 and the third adhesive layer 142 of the corresponding first double-sided tape 140, and the conductive double-sided tape 152 It is connected between the corresponding conductive foam 151 and the corresponding conductive layer 162 .

Please refer to Figure 5. FIG. 5 is a partially enlarged cross-sectional view showing a display device 100 according to another embodiment of the present invention. In this embodiment, as shown in FIG. 5 , the display device 100 further includes a second double-sided adhesive tape 170 . The second double-sided tape 170 is located between the conductive pads 130 and separated from the conductive pads 130 , and the second double-sided tape 170 is connected between the conductive foam 151 of the conductive foam tape 150 and the circuit board 120 . In this way, the second double-sided tape 170 can help to fix the relative position of the conductive foam tape 150 relative to the circuit board 120 , so that the electrical connection between the conductive foam tape 150 and the conductive pad 130 is more stable.

Further, as shown in FIG. 5 , the second double-sided adhesive tape 170 includes a second base material 171 , a fifth adhesive layer 172 and a sixth adhesive layer 173 . The second substrate 171 includes opposite fifth sides 174 and sixth sides 175 . The fifth adhesive layer 172 is disposed on the fifth side 174 and configured to adhere the conductive foam 151 of the conductive foam tape 150 . The sixth adhesive layer 173 is disposed on the sixth side 175 and configured to adhere the circuit board 120 . In practical applications, the second base material 171 , the fifth adhesive layer 172 and the sixth adhesive layer 173 may be made of conductive materials, or may be made of non-conductive materials according to actual conditions.

In addition to the above display device 100 , the present invention further provides an assembly method 500 for the display device 100 . Please refer to Figure 6. FIG. 6 is a flowchart illustrating an assembly method 500 of the display device 100 according to an embodiment of the present invention. In this embodiment, as shown in Figure 6, the assembly method 500 includes the following steps (it should be understood that the steps mentioned in some embodiments can be adjusted according to actual needs unless the order is specifically stated. its sequence, and can even be executed simultaneously or partly at the same time):

(1) Provide the display substrate 110 (step 510 ). As mentioned above, the display substrate 110 has a first area Z1 and a plurality of second areas Z2, the first area Z1 is located between the second areas Z2, the circuit board 120 is at least partially disposed in the first area Z1, and the circuit board 120 is provided with A plurality of conductive pads 130 are separated from each other and disposed on the first surface 121 of the circuit board 120 facing away from the display substrate 110 .

(2) Providing the first auxiliary part 200 configured with a plurality of first double-sided adhesive tapes 140 (step 520 ). Please refer to Figure 7. FIG. 7 is a schematic front view illustrating the assembly process 500 of the display device 100 in FIG. 6 , wherein a plurality of first double-sided adhesive tapes 140 are adhered to the first auxiliary member 200 . In this embodiment, as shown in FIG. 7 , the third adhesive layer 142 of the first double-sided adhesive tape 140 is connected to the first auxiliary member 200 . In practical applications, the first auxiliary element 200 may be a release film, but the present invention is not limited thereto.

(3) Assembling the first auxiliary member 200 on the display substrate 110 , so that the first double-sided adhesive tape 140 is adhered to the corresponding second area Z2 (step 530 ). Please refer to Figure 8. FIG. 8 is a top view illustrating the assembly process 500 of the display device 100 in FIG. 6 , wherein a plurality of first double-sided adhesive tapes 140 are adhered to the corresponding second regions Z2. In this embodiment, as shown in FIG. 8, the first auxiliary member 200 is combined with the first double-sided adhesive tape 140 on the display substrate 110, and the fourth adhesive layer 143 of the first double-sided adhesive tape 140 (as shown in FIG. 7 shown) is adhered to the second region Z2 of the display substrate 110 .

(4) The first auxiliary part 200 is removed, and the first double-sided adhesive tape 140 is detached from the first auxiliary part 200 (step 540 ). Please refer to Figure 9. FIG. 9 is a top view showing the assembly process 500 of the display device 100 in FIG. 6 , where the process of adhering the first double-sided adhesive tape 140 to the second area Z2 has been completed. In this embodiment, as shown in FIG. 9 , the first auxiliary member 200 has been removed so it is not shown, and the first double-sided adhesive tape 140 is separated from the first auxiliary member 200 and adhered and fixed to the display substrate. 110 on the second zone Z2.

(5) Providing the second auxiliary part 300 configured with a plurality of conductive foam tapes 150 (step 550 ). Please refer to Figure 10. FIG. 10 is a schematic front view illustrating the assembly process 500 of the display device 100 in FIG. 6 , wherein a plurality of conductive foam tapes 150 are adhered to the second auxiliary member 300 . In this embodiment, as shown in FIG. 10 , the conductive foam tape 150 is adhered to the second auxiliary part 300 . More specifically, the conductive double-sided adhesive tape 152 of the conductive foam tape 150 is connected between the second auxiliary component 300 and the conductive foam 151 , and the first adhesive layer 154 of the conductive double-sided adhesive tape 152 is connected to the second auxiliary component 300 . In practical applications, similarly, the second auxiliary element 300 can also be a release film, but the present invention is not limited thereto.

(6) Assemble the second auxiliary part 300 on the display substrate 110 , make the conductive foam tape 150 adhere to the corresponding first double-sided tape 140 and electrically connect the corresponding conductive pad 130 (step 560 ). Please refer to Figure 11. FIG. 11 is a top view showing the process of the assembly method 500 of the display device 100 shown in FIG. 6, wherein a plurality of conductive foam tapes 150 are adhered to corresponding first double-sided tapes 140 and connected to corresponding conductive pads 130 (first The double-sided adhesive tape 140 and the conductive pad 130 are shown in Figures 8-9). In this embodiment, as shown in FIG. 11, the second auxiliary member 300 and the conductive foam tape 150 are paired on the display substrate 110, and the conductive foam 151 of the conductive foam tape 150 (as shown in FIG. 10 ) Adhere to the corresponding first double-sided adhesive tape 140 and connect to the corresponding conductive pad 130 .

(7) The second auxiliary part 300 is removed, and the conductive foam tape 150 is detached from the second auxiliary part 300 (step 570 ). Please refer to Figure 12. FIG. 12 is a top view showing the process of the assembly method 500 of the display device 100 in FIG. 6, wherein the process of adhering the conductive foam tape 150 to the corresponding first double-sided tape 140 and connecting the corresponding conductive pad 130 has been completed . In this embodiment, as shown in FIG. 12 , the second auxiliary member 300 has been removed so it is not shown, and the conductive foam tape 150 is separated from the second auxiliary member 300 and adhered to the corresponding first pair. The surface tape 140 is connected to the corresponding conductive pad 130 .

As mentioned above, since the first double-sided adhesive tape 140 is attached to the second area Z2 of the display substrate 110 by the first auxiliary member 200, the conductive foam tape 150 is attached to the display substrate 110 by the second auxiliary member. The 300 pairs are assembled on the display substrate 110 by adhering the first double-sided adhesive tape 140 and electrically connecting the conductive pads 130 , thus, the assembly process of the display device 100 becomes more accurate and faster, and the assembly efficiency of the display device 100 is also significantly improved.

Moreover, the assembling method 500 further includes:

(8) Cover the display substrate 110 with the cover plate 160 , and connect the plurality of conductive layers 162 of the cover plate 160 to the corresponding conductive double-sided adhesive tapes 152 (step 580 ), as shown in FIG. 4 .

Please refer to Figure 13. FIG. 13 is a flowchart illustrating an assembly method 500 of the display device 100 according to another embodiment of the present invention. In this embodiment, as shown in Figure 13, the assembly method 500 includes the following steps (it should be understood that the steps mentioned in some embodiments can be adjusted according to actual needs unless the order is specifically stated. its sequence, and can even be executed simultaneously or partly at the same time):

(1) Provide the first auxiliary part 200 configured with the second double-sided adhesive tape 170 and a plurality of first double-sided adhesive tapes 140 (step 520'). Please refer to Figure 14. FIG. 14 is a schematic front view illustrating the assembly process 500 of the display device 100 in FIG. 13 , wherein the second double-sided adhesive tape 170 is adhered to the first auxiliary member 200 . In this embodiment, as shown in FIG. 14 , both the second double-sided tape 170 and the first double-sided tape 140 are connected to the first auxiliary member 200 . More specifically, the fifth adhesive layer 172 of the second double-sided tape 170 is connected to the first auxiliary part 200 , and the third adhesive layer 142 of the first double-sided tape 140 is connected to the first auxiliary part 200 .

(2) Assemble the first auxiliary member 200 on the display substrate 110, make the second double-sided tape 170 adhere to the circuit board 120 and be located between the conductive pads 130, and make the first double-sided tape 140 adhere to the corresponding second area Z2 (step 530'). Please refer to Figure 15. FIG. 15 is a top view illustrating the assembly process 500 of the display device 100 of FIG. 13 , wherein the second double-sided adhesive tape 170 is adhered on the circuit board 120 . In this embodiment, as shown in FIG. 15, the first auxiliary member 200 is combined with the first double-sided tape 140 and the second double-sided tape 170 on the display substrate 110, and the fourth adhesive of the first double-sided tape 140 Layer 143 (as shown in FIG. 14 ) is adhered to the second zone Z2 of the display substrate 110 , and the sixth adhesive layer 173 (as shown in FIG. 14 ) of the second double-sided adhesive tape 170 is adhered to the second region Z2 of the circuit board 120 . on a surface 121 .

(3) Remove the first auxiliary part 200, so that the second double-sided tape 170 and the first double-sided tape 140 are separated from the first auxiliary part 200 (step 540'). Please refer to Figure 16. FIG. 16 is a top view illustrating the assembly process 500 of the display device 100 shown in FIG. 13, wherein the second double-sided adhesive tape 170 is adhered to the circuit board 120, and the first double-sided adhesive tape 140 is adhered to the second zone Z2 process has been completed. In this embodiment, as shown in FIG. 16 , the first auxiliary part 200 has been removed so it is not shown, and the second double-sided adhesive tape 170 is separated from the first auxiliary part 200 and adhered and fixed on the circuit board. 120 on. At the same time, the first double-sided adhesive tape 140 has also been separated from the first auxiliary component 200 , and is adhered and fixed on the second area Z2 of the display substrate 110 .

(4) Assembling the second auxiliary part 300 on the display substrate 110, so that the conductive foam 151 is respectively adhered to the second double-sided tape 170 and the corresponding first double-sided tape 140 and electrically connected to the corresponding conductive pad 130 (step 560 '). Please refer to Figure 17. FIG. 17 is a top view showing the assembly method 500 of the display device 100 in FIG. 13, wherein the conductive foam tape 150 is adhered to the second double-sided tape 170 and the corresponding first double-sided tape 140 and connected to the corresponding conductive Pad 130. In this embodiment, as shown in FIG. 17, the second auxiliary member 300 and the conductive foam tape 150 are paired on the display substrate 110, and the conductive foam 151 of the conductive foam tape 150 (as shown in FIG. 10 ) Adhere to the second double-sided tape 170 , the corresponding first double-sided tape 140 and connect to the corresponding conductive pad 130 .

(5) The second auxiliary part 300 is removed, and the conductive foam tape 150 is detached from the second auxiliary part 300 (step 570'). Please refer to Figure 18. FIG. 18 is a top view illustrating the assembly process 500 of the display device 100 shown in FIG. 13, wherein the conductive foam tape 150 is adhered to the second double-sided tape 170 and the corresponding first double-sided tape 140 and electrically connected The process of the corresponding conductive pad 130 has been completed. In this embodiment, as shown in FIG. 18, the second auxiliary part 300 has been removed so it is not shown, and the conductive foam tape 150 is separated from the second auxiliary part 300 and adhered to the second double-sided tape 170 and the corresponding first double-sided adhesive tape 140 are connected to the corresponding conductive pads 130 .

In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages:

(1) Since the conductive foam and the conductive pad are in direct contact, it is conducive to the conductivity between the two. Moreover, since the conductive double-sided tape is only located on one side of the conductive foam and not on the other side, the conductive foam tape has better compressibility, which further helps to improve the conductivity of the conductive foam tape, and the user The ECG signal will be more easily transmitted through the conductive layer, conductive foam tape, conductive pad and circuit board to the system where the signal is connected to the circuit board for subsequent recording and analysis.

(2) Since the first double-sided tape is adhered to the second area of the display substrate by the first pair of auxiliary parts on the display substrate, and the conductive foam tape is attached to the display substrate by the second pair of auxiliary parts The first double-sided adhesive tape is also electrically connected to the conductive pads, so that the assembly process of the display device becomes more accurate and quicker, and the assembly efficiency of the display device is also significantly improved.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Anyone skilled in this art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be defined by the appended patent application scope.

100: display device

110: display substrate

120: circuit board

121: first surface

130: conductive pad

140: The first double-sided tape

141: First substrate

142: The third adhesive layer

143: The fourth adhesive layer

144: third side

145: Fourth side

150: Conductive foam tape

151: Conductive foam

152: Conductive double-sided tape

153: Conductive substrate

154: The first adhesive layer

155: Second adhesive layer

156: first side

157: second side

160: cover plate

161: Transparent substrate

162: conductive layer

163: second surface

164: third surface

170: second double-sided tape

171: Second substrate

172: Fifth adhesive layer

173: The sixth adhesive layer

174: fifth side

175: sixth side

200: first auxiliary piece

300: Second auxiliary part

500: Assembly method

510~580,520’~540’,560’~570’: steps

A-A: line segment

Z1: the first zone

Z2: the second zone

FIG. 1 is a top view showing a display device according to an embodiment of the present invention. FIG. 2 is a partial perspective bottom view of the display device shown in FIG. 1 . Fig. 3 is a front view of the display device shown in Fig. 1 . Fig. 4 is a partially enlarged cross-sectional view along line A-A in Fig. 1 . FIG. 5 is a partially enlarged cross-sectional view showing a display device according to another embodiment of the present invention. FIG. 6 is a flowchart illustrating an assembly method of a display device according to an embodiment of the present invention. FIG. 7 is a schematic front view illustrating the process of assembling the display device of FIG. 6 , wherein a plurality of first double-sided adhesive tapes are adhered to the first auxiliary member. FIG. 8 is a top view illustrating the process of assembling the display device of FIG. 6 , wherein a plurality of first double-sided adhesive tapes are adhered to corresponding second regions. FIG. 9 is a top view illustrating the process of assembling the display device of FIG. 6, wherein the process of adhering the first double-sided tape to the second area has been completed. FIG. 10 is a schematic front view showing the process of assembling the display device of FIG. 6 , wherein a plurality of conductive foam tapes are adhered to the second auxiliary member. FIG. 11 is a top view illustrating the process of assembling the display device of FIG. 6 , wherein a plurality of conductive foam tapes are adhered to corresponding first double-sided tapes and connected to corresponding conductive pads. FIG. 12 is a top view illustrating the process of assembling the display device of FIG. 6, wherein the process of adhering the conductive foam tape to the corresponding first double-sided tape and connecting the corresponding conductive pad has been completed. FIG. 13 is a flowchart illustrating an assembly method of a display device according to another embodiment of the present invention. FIG. 14 is a schematic front view illustrating the process of assembling the display device of FIG. 13 , wherein the second double-sided adhesive tape is adhered to the first auxiliary member. FIG. 15 is a top view illustrating the process of assembling the display device of FIG. 13 , wherein the second double-sided adhesive tape is adhered to the circuit board. FIG. 16 is a top view illustrating the process of assembling the display device of FIG. 13, wherein the process of adhering the second double-sided tape to the circuit board and adhering the first double-sided tape to the second area has been completed. FIG. 17 is a top view illustrating the process of assembling the display device of FIG. 13 , wherein the conductive foam tape is adhered to the second double-sided tape and the corresponding first double-sided tape and connected to the corresponding conductive pads. Fig. 18 is a top view illustrating the process of assembling the display device of Fig. 13, wherein the conductive foam tape is adhered to the second double-sided tape and the corresponding first double-sided tape and electrically connected to the corresponding conductive pads The process is complete.

Domestic deposit information (please note in order of depositor, date, and number) none Overseas storage information (please note in order of storage country, institution, date, and number) none

100: display device

110: display substrate

120: circuit board

121: first surface

130: conductive pad

140: The first double-sided tape

141: First substrate

142: The third adhesive layer

143: The fourth adhesive layer

144: third side

145: Fourth side

150: Conductive foam tape

151: Conductive foam

152: Conductive double-sided tape

153: Conductive substrate

154: The first adhesive layer

155: Second adhesive layer

156: first side

157: second side

160: cover plate

161: Transparent substrate

162: conductive layer

163: second surface

164: third surface

A-A: line segment

Z1: the first zone

Z2: the second zone

Claims (12)

A display device, comprising: a display substrate, having a first region adjacent to each other and at least one second region; a circuit board, at least partially disposed on the first region; at least one conductive pad, disposed on the circuit board facing away from the A first surface of the display substrate; at least one first double-sided adhesive tape disposed on the second area; at least one conductive foam adhesive tape, comprising: a conductive foam adjacent to the first double-sided adhesive tape and the conductive pad and a conductive double-sided tape; and a cover plate, including: a light-transmitting substrate, including a second surface facing the display substrate; and at least one conductive layer, at least partially covering the second surface, the conductive double-sided tape It is connected between the conductive foam and the conductive layer, wherein the conductive foam tape is electrically connected to the conductive layer and the conductive pad. The display device according to claim 1, wherein the conductive double-sided adhesive tape comprises: a conductive substrate including a first side opposite to a second side; a first adhesive layer disposed on the first side, and configured to adhere the conductive layer; and A second adhesive layer is arranged on the second side and configured to adhere to the conductive foam. The display device according to claim 1, wherein the first double-sided adhesive tape comprises: a first base material including a third side opposite to a fourth side; a third adhesive layer disposed on the third side , configured to adhere to the conductive foam; and a fourth adhesive layer, disposed on the fourth side, configured to adhere to the display substrate. The display device as described in claim 1, wherein the number of the second areas is two, the first area is located between the second areas, the number of the first double-sided adhesive tape is two, and the first The double-sided adhesive tapes are respectively arranged in the corresponding second regions, the number of the conductive pads is two, and the conductive pads are separated from each other, the number of the conductive foam tapes is two, and the conductive foam tapes are separated from each other, and They are respectively arranged on the corresponding first double-sided adhesive tape and the corresponding conductive pad, the number of the conductive layers is two, the conductive layers are separated from each other, and are respectively electrically connected to the corresponding conductive foam tape. The display device as described in claim 4, wherein each of the conductive foams abuts against the corresponding first double-sided adhesive tape and the corresponding conductive pad, and each of the conductive double-sided adhesive tapes is connected to the corresponding conductive foam between the cotton and the corresponding conductive layer. The display device as claimed in claim 5 further includes: a second double-sided adhesive tape located between the conductive pads and connected between the conductive foams and the circuit board. The display device according to claim 6, wherein the second double-sided adhesive tape comprises: a second base material including a fifth side and a sixth side opposite to each other; a fifth adhesive layer disposed on the fifth side , configured to adhere to the conductive foams; and a sixth adhesive layer disposed on the sixth side and configured to adhere to the circuit board. A method for assembling a display device, comprising: providing a display substrate, the display substrate has a first region and a plurality of second regions, the first region is located between the second regions, and a circuit board is at least partially disposed on the In the first area, a plurality of conductive pads are arranged on the circuit board, and the conductive pads are separated from each other and arranged on a surface of the circuit board away from the display substrate; a first auxiliary tape configured with a plurality of first double-sided adhesive tapes is provided. piece; assemble the first auxiliary piece on the display substrate, so that each of the first double-sided tapes adheres to the corresponding second area; remove the first auxiliary piece, and separate the first double-sided tapes the first accessory; Provide a second auxiliary member configured with a plurality of conductive foam tapes, each of the conductive foam tapes includes a conductive foam and a conductive double-sided tape, the conductive double-sided tape connects the second auxiliary member and the conductive Foam; assemble the second auxiliary part on the display substrate, make each of the conductive foam tapes adhere to the corresponding first double-sided tape and electrically connect the corresponding conductive pad; and remove the second Auxiliary piece, make these conductive foam tapes detach from the second auxiliary piece. The assembling method as described in Claim 8 further includes: covering the display substrate with a cover plate, so that the plurality of conductive layers of the cover plate are respectively connected to the corresponding conductive double-sided adhesive tape. The assembly method as described in claim 8, wherein the step of providing the first auxiliary member configured with the first double-sided adhesive tapes, each of the first double-sided adhesive tapes includes: a first base material, including the opposite A first side and a second side; a first adhesive layer disposed on the first side and connected to the first auxiliary component; and a second adhesive layer disposed on the second side. The assembly method as described in claim 8, further comprising: providing the first auxiliary member configured with a second double-sided adhesive tape; assembling the first auxiliary member on the display substrate so that the second double-sided adhesive tape adhering the circuit board between the conductive pads; and removing the first auxiliary part to separate the second double-sided tape from the first auxiliary part, wherein the assembling method further includes: placing the second auxiliary part For assembly on the display substrate, the conductive foams are respectively adhered to the second double-sided adhesive tape. The assembly method as claimed in claim 11, wherein the step of providing the first auxiliary member configured with the second double-sided tape, the second double-sided tape includes: a second base material including an opposite third side and a fourth side; a third adhesive layer disposed on the third side and connected to the first auxiliary component; and a fourth adhesive layer disposed on the fourth side.

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