CN114927057A

CN114927057A - Display device and assembling method thereof

Info

Publication number: CN114927057A
Application number: CN202210638851.3A
Authority: CN
Inventors: 夏广德
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2022-03-14
Filing date: 2022-06-07
Publication date: 2022-08-19
Anticipated expiration: 2042-06-07
Also published as: TW202336717A; CN114927057B; TWI810849B

Abstract

A display device and an assembling method thereof are provided, the display device comprises 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 and at least one second region adjacent to each other. The circuit board is at least partially arranged in the first area. The conductive pad is disposed on the first surface of the circuit board opposite to the display substrate. The first double-sided tape is arranged in the second area. The conductive foam adhesive tape is arranged on the first double-sided adhesive tape and the conductive pad. The cover plate comprises a light-transmitting substrate and at least one conductive layer. The light-transmitting substrate comprises a second surface facing 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 assembling method thereof

Technical Field

The present invention relates to a display device and a method for assembling the same, and more particularly, to a display device capable of measuring pulse and a method for assembling the same.

Background

With the progress of the times, the physical lives of people have become unprecedented. At the same time, people are aware that health is also a valuable asset. Therefore, consumers nowadays generally attach importance to the way of health preservation and can also be concerned about their physical condition.

In order to grasp this developing market, manufacturers of electronic products invest resources to develop products that enable consumers to conveniently and effectively understand their physical conditions.

Disclosure of Invention

It is an object of the present invention to provide a display device which can also reliably transmit an electrocardiogram signal of a user.

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 and at least one second region adjacent to each other. The circuit board is at least partially arranged in the first area. The conductive pad is disposed on the first surface of the circuit board opposite to the display substrate. The first double-sided tape is arranged in the second area. The conductive foam adhesive tape is arranged on the first double-sided adhesive tape and the conductive pad. The cover plate comprises a light-transmitting substrate and at least one conductive layer. The light-transmitting substrate comprises a second surface facing 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.

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

In one or more embodiments of the present invention, the first double-sided tape includes a first substrate, a third adhesive layer, and a fourth adhesive layer. The first substrate comprises a third side and a fourth side which are opposite. The third adhesive layer is arranged on the third side and is configured to adhere 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 second regions is two, and the first region is located between the second regions. The number of the first double-sided adhesive tapes is two, and the first double-sided adhesive tapes are respectively arranged in the corresponding second areas. The number of the conductive pads is two, and the conductive pads are spaced apart from each other. The number 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 the conducting layers is two, and the conducting layers are separated from each other and are respectively and electrically connected with the corresponding conducting foam adhesive tapes.

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

In one or more embodiments of the present invention, the second double-sided tape includes a second substrate, a fifth adhesive layer, and a sixth adhesive layer. The second substrate comprises a fifth side and a sixth side which are opposite. The fifth bonding layer is arranged on the fifth side and is configured to adhere the conductive foam. The sixth adhesive layer is disposed on the sixth side and configured to adhere the circuit board.

An objective of the present invention is to provide a method for assembling a display device, which can simplify the assembling process of the display device and improve the efficiency thereof.

According to an embodiment of the present invention, a method for assembling a display device includes: providing a display substrate, wherein the display substrate is provided with a first area and a plurality of second areas, the first area is positioned between the second areas, the circuit board is at least partially arranged in the first area, and a plurality of conductive pads are arranged on the circuit board, are separated from one another and are arranged on the surface of the circuit board far away from the display substrate; (II) providing a first auxiliary piece provided with a plurality of first double-sided adhesive tapes; thirdly, the first auxiliary component is arranged on the display substrate, and the first double-sided adhesive tape is adhered to the corresponding second area; removing the first auxiliary piece to enable the first double-sided adhesive tape to be separated from the first auxiliary piece; (V) providing a second auxiliary member configured with a plurality of conductive foam tapes; sixthly, the second auxiliary component pair is arranged on the display substrate, so that the conductive foam adhesive tape is adhered to the corresponding first double-sided adhesive tape and is electrically connected with the corresponding conductive pad; and (seventhly) removing the second auxiliary piece to enable the conductive foam adhesive tape to be separated from the second auxiliary piece.

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

In one or more embodiments of the present invention, the assembling method further includes: and (eighthly), covering the display substrate by using a cover plate, and enabling the plurality of conductive layers of the cover plate to be respectively connected with the corresponding conductive double-sided adhesive tapes.

In one or more embodiments of the present invention, the step of providing the first auxiliary member with the first double-sided tape includes a first substrate, a first adhesive layer, and a second adhesive layer. The first substrate comprises a first side and a second side which are opposite. The first adhesive layer is arranged on the first side and connected with the first auxiliary piece. The second adhesive layer is disposed on the second side.

In one or more embodiments of the present invention, the assembling method further includes: (nine) providing a first auxiliary member provided with a second double-sided adhesive tape; (ten) assembling the first auxiliary assembly pair to the display substrate such that the second double-sided tape is adhered to the circuit board and positioned between the conductive pads; and (eleventh) removing the first auxiliary member to separate the second double-sided adhesive tape from the first auxiliary member. The assembly method further comprises: and (twelfth) the second auxiliary component is arranged on the display substrate, so that the conductive foam is respectively adhered to the second double-sided adhesive tape.

In one or more embodiments of the present invention, the step of providing the first auxiliary member with the second double-sided tape includes a second substrate, a third adhesive layer, and a fourth adhesive layer. The second substrate comprises a third side and a fourth side which are opposite. The third adhesive layer is disposed on the third side and is connected to the first auxiliary member. The fourth adhesive layer is disposed on the fourth side.

The above-mentioned embodiments of the invention have at least the following advantages:

(1) because the conductive foam is in direct contact with the conductive pad, the conductivity between the conductive foam and the conductive pad is facilitated. Moreover, because the conductive double-sided tape is only positioned on one side of the conductive foam and not positioned on the other side, the conductive foam tape has better compressibility, which is further beneficial to improving the conductivity of the conductive foam tape, and the electrocardiogram signals of a user can be more easily transmitted to a system of the signal connection circuit board for subsequent recording and analysis through the conductive layer, the conductive foam tape, the conductive pad and the circuit board.

(2) The first double-sided tape is adhered to the second area of the display substrate through the first auxiliary component pair, and the conductive foam tape is adhered to the display substrate through the second auxiliary component pair and electrically connected with the conductive pad, so that the assembly process of the display device is more accurate and faster, and the assembly efficiency of the display device is remarkably improved.

Drawings

Fig. 1 is a top view illustrating a display device according to an embodiment of the present invention.

Fig. 2 is a partial perspective lower view illustrating the display device of fig. 1.

Fig. 3 is a front view illustrating the display device of fig. 1.

Fig. 4 is a partially enlarged sectional view showing fig. 1 along line a-a.

Fig. 5 is a partially enlarged sectional view illustrating a display device according to another embodiment of the present invention.

Fig. 6 is a flowchart illustrating an assembling method of a display device according to an embodiment of the present invention.

Fig. 7 is a process front view illustrating an assembling method of the display device of fig. 6, in which a plurality of first double-sided tapes are adhered to a first auxiliary.

Fig. 8 is a process top view illustrating an assembling method of the display device of fig. 6, in which a plurality of first double-sided tapes are adhered to corresponding second regions.

Fig. 9 is a process top view illustrating an assembling method of the display device of fig. 6, in which a process of adhering the first double-sided adhesive tape to the second area has been completed.

Fig. 10 is a process front view illustrating an assembly method of the display device of fig. 6 in which a plurality of conductive foam tapes are attached to a second auxiliary.

Fig. 11 is a process top view illustrating an assembly method of the display device of fig. 6, in which a plurality of conductive foam tapes are adhered to corresponding first double-sided tapes and connect corresponding conductive pads.

Fig. 12 is a process top view illustrating an assembling method of the display device of fig. 6, in which a process of attaching the conductive foam tapes to the corresponding first double-sided tapes and connecting the corresponding conductive pads has been completed.

Fig. 13 is a flowchart illustrating an assembling method of a display device according to another embodiment of the present invention.

Fig. 14 is a process front view schematically illustrating an assembling method of the display device of fig. 13, in which a second double-sided adhesive tape is adhered to a first auxiliary.

Fig. 15 is a process top view illustrating an assembling method of the display device of fig. 13, in which a second double-sided tape is adhered to a circuit board.

Fig. 16 is a process top view illustrating an assembling method of the display device of fig. 13, in which a 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 a process of assembling the display device of fig. 13, wherein a conductive foam tape is adhered to the second double-sided tape and the corresponding first double-sided tape and connected to the corresponding conductive pad.

Fig. 18 is a process top view illustrating an assembling method of the display device of fig. 13, in which a process of attaching a conductive foam tape to a second double-sided tape and a corresponding first double-sided tape and electrically connecting corresponding conductive pads has been completed.

Description of the reference numerals:

100: display device

110: display substrate

120: circuit board

121: first surface

130: conductive pad

140: the first double-sided tape

141: a first substrate

142: third adhesive layer

143: fourth adhesive layer

144: third side

145: fourth side

150: conductive foam adhesive tape

151: conductive foam

152: conductive double-sided tape

153: conductive substrate

154: first adhesive layer

155: second adhesive layer

156: first side

157: second side

160: cover plate

161: light-transmitting substrate

162: conductive layer

163: second surface

164: third surface

170: second double-sided adhesive tape

171: second base material

172: fifth adhesive layer

173: sixth adhesive layer

174: the fifth side

175: the sixth side

200: first auxiliary member

300: second auxiliary member

500: assembling method

510-580,520 '-540', 560 '-570': step (ii) of

A-A: line segment

Z1: first region

Z2: second region

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, such implementation details are not necessary in some embodiments of the invention. Further, in order to simplify the drawings, some conventional structures and elements are shown in a simplified schematic manner in the drawings, and the same reference numerals will be used to refer to the same or like elements throughout the drawings. And features of different embodiments may be applied interactively, if possible.

Unless defined otherwise, all words (including technical and scientific terms) used herein have their ordinary meaning as is understood by those skilled in the art. Furthermore, the definitions of the above-mentioned words and phrases in general terms and in commonly used dictionaries should be interpreted as having a meaning that is consistent with the context of the present invention. Unless specifically defined otherwise, these terms are not to be interpreted in an idealized or overly formal sense.

Please refer to fig. 1-2. Fig. 1 is a top view illustrating a display device 100 according to an embodiment of the present invention. Fig. 2 is a partial perspective bottom view illustrating the display device 100 of fig. 1. As shown in FIGS. 1-2, the present invention provides a display device 100. For example, the display device 100 may be a wearable display device and allow a user to measure an electrocardiogram signal thereof. The specific structure of the display device 100 is described in detail below.

Please refer to fig. 3-4. Fig. 3 is a front view illustrating the display apparatus 100 of fig. 1, in which the thickness of the cover plate 160 is shown in an exaggerated scale. Fig. 4 is a partially enlarged sectional view showing fig. 1 along line a-a. In this embodiment, as shown in fig. 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 tape 140, at least one conductive foam tape 150, and a cover plate 160. The display substrate 110 has a first region Z1 and at least a second region Z2 adjacent to each other. Specifically, the first region Z1 and the second region Z2 are located at the periphery of the display substrate 110 and are arranged along the side of the display substrate 110. The circuit board 120 is at least partially disposed in the first region Z1, and the first region Z1 may be an outlet region of the display substrate 110. The conductive pads 130 are disposed on the first surface 121 of the circuit board 120 facing away from the display substrate 110. The first double-sided tape 140 is disposed at the second region Z2. The 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 light-transmitting 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 region of the transparent substrate 161 and at least partially covers the second surface 163 and the third surface 164. The foam tape 150 is at least partially disposed between the second surface 163 of the transparent substrate 161 and the conductive pad 130, and electrically connects the conductive layer 162 and the conductive pad 130.

In practical applications, the Circuit board 120 may be a Flexible Printed Circuit (FPC) or a Chip On Film (COF), for example. More specifically, if the Display device 100 is a Liquid Crystal Display (LCD), the circuit board 120 may be connected to a lower substrate of the Display module. If the display device 100 is an Organic Light-Emitting Diode (OLED) display or a Micro-LED (Micro-LED) display, the circuit board 120 may be connected to a circuit substrate having Thin Film Transistors (TFTs) or microchips (Micro-chips) on the display panel.

As described above, since the conductive layer 162 at least partially covers the third surface 164 of the transparent substrate 161, the user can contact the conductive layer 162 covering the third surface 164 with a finger, for example, and the user's ecg signal can be transmitted to the system (not shown) of the signal connection circuit board 120 for subsequent recording and analysis through the conductive layer 162, the conductive foam tape 150, the conductive pad 130 and the circuit board 120 in sequence.

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

Furthermore, as shown in fig. 4, the conductive double-sided 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 is configured to adhere to 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 to the foam 151 of the foam tape 150. In practical applications, the conductive substrate 153, the first adhesive layer 154 and the second adhesive layer 155 are all made of conductive materials.

As shown in fig. 4, the first double-sided tape 140 includes a first base 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 substrate 141, the third adhesive layer 142 and the fourth adhesive layer 143 may be conductive materials or non-conductive materials according to actual conditions.

Furthermore, in practical applications, as shown in fig. 4, the number of the second zones Z2 is two, and the first zone Z1 is located between the second zones Z2. The number of the first double-sided tapes 140 is also two, and the first double-sided tapes 140 are respectively disposed in the corresponding second areas Z2. The number of the conductive pads 130 is also two, and the conductive pads 130 are spaced apart from each other. The number of the blister tapes 150 is also two, and the blister tapes 150 are separated from each other and respectively disposed on the corresponding first double-sided tapes 140 and the corresponding conductive pads 130. The number of the 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 respectively.

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

Please refer to fig. 5. Fig. 5 is a partially enlarged sectional view illustrating 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 tape 170. The second double-sided tape 170 is located between the conductive pads 130 to be spaced apart from the conductive pads 130, and the second double-sided tape 170 is connected between the foam 151 of the foam tape 150 and the circuit board 120. As a result, the second double-sided tape 170 can help to fix the relative position of the foam tape 150 with respect to the circuit board 120, so that the electrical connection between the foam tape 150 and the conductive pad 130 is more stable.

Further, as shown in fig. 5, the second double-sided tape 170 includes a second base 171, a fifth adhesive layer 172, and a sixth adhesive layer 173. The second substrate 171 includes a fifth side 174 and a sixth side 175 opposite thereto. The fifth adhesive layer 172 is disposed on the fifth side 174 and configured to adhere the foam 151 of the 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 substrate 171, the fifth adhesion layer 172 and the sixth adhesion layer 173 may be made of a conductive material, or may be made of a non-conductive material according to actual conditions.

In addition to the display device 100, the present invention further provides an assembling method 500 of the display device 100. Please refer to fig. 6. Fig. 6 is a flowchart illustrating an assembly method 500 of the display device 100 according to an embodiment of the invention. In the present embodiment, as shown in fig. 6, the assembling method 500 includes the following steps (it should be understood that the steps mentioned in some embodiments, except the sequence specifically mentioned, can be performed in a sequence or a sequence adjusted according to actual needs, and even simultaneously or partially simultaneously):

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

(2) A first auxiliary 200 configured with a plurality of first double-sided adhesive tapes 140 is provided (step 520). Please refer to fig. 7. Fig. 7 is a process front view illustrating an assembling method 500 of the display device 100 of fig. 6, in which a plurality of first double-sided tapes 140 are adhered to the first auxiliary 200. In the present embodiment, as shown in fig. 7, the third adhesive layer 142 of the first double-sided tape 140 is attached to the first auxiliary 200. In practical applications, the first auxiliary element 200 may be a release film, but the invention is not limited thereto.

(3) The first auxiliary member 200 is aligned with the display substrate 110 such that the first double-sided tape 140 is adhered to the corresponding second region Z2 (step 530). Please refer to fig. 8. Fig. 8 is a process top view illustrating an assembling method 500 of the display device 100 of fig. 6, in which a plurality of first double-sided adhesive tapes 140 are adhered to the corresponding second regions Z2. In the present embodiment, as shown in fig. 8, the first auxiliary member 200 is aligned with the display substrate 110 together with the first double-sided tape 140, and the fourth adhesive layer 143 (shown in fig. 7) of the first double-sided tape 140 is adhered to the second region Z2 of the display substrate 110.

(4) The first auxiliary member 200 is removed, and the first double-sided tape 140 is separated from the first auxiliary member 200 (step 540). Please refer to fig. 9. Fig. 9 is a process top view illustrating an assembling method 500 of the display device 100 of fig. 6, in which a process of adhering the first double-sided adhesive tape 140 to the second region Z2 has been completed. In the present embodiment, as shown in fig. 9, the first auxiliary member 200 is removed and is not shown, and the first double-sided tape 140 is separated from the first auxiliary member 200 and adhered and fixed on the second region Z2 of the display substrate 110.

(5) A second auxiliary member 300 configured with a plurality of the conductive foam tapes 150 is provided (step 550). Please refer to fig. 10. Fig. 10 is a schematic process front view illustrating an assembling method 500 of the display device 100 of fig. 6, in which a plurality of the foam tapes 150 are adhered to the second auxiliary 300. In the present embodiment, as shown in fig. 10, the conductive foam tape 150 is adhered to the second auxiliary member 300. More specifically, the conductive double-sided tape 152 of the conductive foam tape 150 is connected between the second auxiliary 300 and the conductive foam 151, and the first adhesive layer 154 of the conductive double-sided tape 152 is connected to the second auxiliary 300. In practical applications, the second auxiliary member 300 may be a release film, but the invention is not limited thereto.

(6) The second auxiliary member 300 is aligned with the display substrate 110, such that the foam tape 150 adheres to the corresponding first double-sided tape 140 and is electrically connected to the corresponding conductive pad 130 (step 560). Please refer to fig. 11. Fig. 11 is a top view illustrating an assembly method 500 of the display device 100 of fig. 6, in which a plurality of foam tapes 150 are adhered to the corresponding first double-sided tapes 140 and connected to the corresponding conductive pads 130 (see fig. 8-9 for the first double-sided tapes 140 and the conductive pads 130). In this embodiment, as shown in fig. 11, the second auxiliary member 300 and the blister strip 150 are aligned with the display substrate 110, and the blisters 151 (shown in fig. 10) of the blister strip 150 are adhered to the corresponding first double-sided tapes 140 and connected to the corresponding conductive pads 130.

(7) The second auxiliary member 300 is removed, and the foam tape 150 is separated from the second auxiliary member 300 (step 570). Please refer to fig. 12. Fig. 12 is a process top view illustrating an assembling method 500 of the display device 100 of fig. 6, in which a process of adhering the blister tapes 150 to the corresponding first double-sided tapes 140 and connecting the corresponding conductive pads 130 has been completed. In the present embodiment, as shown in fig. 12, the second auxiliary member 300 is removed and is not shown, and the foam tape 150 is separated from the second auxiliary member 300, adhered to the corresponding first double-sided tape 140 and connected to the corresponding conductive pad 130.

As described above, since the first double-sided tape 140 is adhered to the display substrate 110 through the first auxiliary device 200 and adhered to the second region Z2 of the display substrate 110, and the foam tape 150 is adhered to the display substrate 110 through the second auxiliary device 300 and adhered to the first double-sided tape 140 and electrically connected to the conductive pad 130, the assembly process of the display device 100 becomes more precise and faster, and the assembly efficiency of the display device 100 is significantly improved.

Moreover, the assembling method 500 further includes:

(8) the display substrate 110 is covered by the cover plate 160, and the conductive layers 162 of the cover plate 160 are respectively connected to the corresponding conductive double-sided tapes 152 (step 580), as shown in fig. 4.

Please refer to fig. 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 the present embodiment, as shown in fig. 13, the assembling method 500 includes the following steps (it should be understood that the steps mentioned in some embodiments, except the sequence specifically described, can be performed in a sequence or a sequence adjusted according to actual needs, and even simultaneously or partially simultaneously):

(1) a first auxiliary 200 configured with a second double-sided adhesive tape 170 and a plurality of first double-sided adhesive tapes 140 is provided (step 520'). Please refer to fig. 14. Fig. 14 is a process front view illustrating an assembling method 500 of the display device 100 of fig. 13, in which the second double-sided tape 170 is adhered to the first auxiliary 200. In the present embodiment, as shown in fig. 14, the second double-sided tape 170 and the first double-sided tape 140 are both connected to the first auxiliary 200. More specifically, the fifth adhesive layer 172 of the second double-sided tape 170 is attached to the first auxiliary 200, and the third adhesive layer 142 of the first double-sided tape 140 is attached to the first auxiliary 200.

(2) The first auxiliary member 200 is aligned with the display substrate 110, the second double-sided tape 170 is attached to the circuit board 120 between the conductive pads 130, and the first double-sided tape 140 is attached to the corresponding second region Z2 (step 530'). Please refer to fig. 15. Fig. 15 is a process top view illustrating an assembly method 500 of the display device 100 of fig. 13, in which the second double-sided tape 170 is adhered to the circuit board 120. In this embodiment, as shown in fig. 15, the first auxiliary member 200 is assembled on the display substrate 110 together with the first double-sided tape 140 and the second double-sided tape 170, the fourth adhesive layer 143 (shown in fig. 14) of the first double-sided tape 140 is adhered to the second area Z2 of the display substrate 110, and the sixth adhesive layer 173 (shown in fig. 14) of the second double-sided tape 170 is adhered to the first surface 121 of the circuit board 120.

(3) The first auxiliary 200 is removed, and the second double-sided tape 170 and the first double-sided tape 140 are separated from the first auxiliary 200 (step 540'). Please refer to fig. 16. Fig. 16 is a process top view illustrating an assembling method 500 of the display device 100 of fig. 13, in which a process of adhering the second double-sided adhesive tape 170 to the circuit board 120 and adhering the first double-sided adhesive tape 140 to the second region Z2 has been completed. In the present embodiment, as shown in fig. 16, the first auxiliary member 200 has been removed and is not shown, and the second double-sided tape 170 is detached from the first auxiliary member 200 and adhered and fixed to the circuit board 120. Meanwhile, the first double-sided tape 140 is also detached from the first auxiliary member 200 and is adhered and fixed on the second area Z2 of the display substrate 110.

(4) The second auxiliary member 300 is aligned with the display substrate 110, so that the conductive foams 151 are respectively adhered to the second double-sided tapes 170 and the corresponding first double-sided tapes 140 and electrically connected to the corresponding conductive pads 130 (step 560'). Please refer to fig. 17. Fig. 17 is a process top view illustrating an assembly method 500 of the display device 100 of fig. 13, wherein the blister strip 150 is adhered to the second double-sided tape 170 and the corresponding first double-sided tape 140 and is 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 aligned with the display substrate 110, and the conductive foam 151 (shown in fig. 10) of the conductive foam tape 150 is adhered to the second double-sided tape 170, the corresponding first double-sided tape 140 and connected to the corresponding conductive pad 130.

(5) The second auxiliary member 300 is removed, and the conductive foam tape 150 is detached from the second auxiliary member 300 (step 570'). Please refer to fig. 18. Fig. 18 is a process top view illustrating an assembly method 500 of the display device 100 of fig. 13, in which the process of adhering the blister tapes 150 to the second double-sided tape 170 and the corresponding first double-sided tape 140 and electrically connecting the corresponding conductive pads 130 is completed. In the present embodiment, as shown in fig. 18, the second auxiliary member 300 is removed and is not shown, and the blister tape 150 is separated from the second auxiliary member 300, 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 summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages:

Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and therefore the scope of the invention is to be determined by the appended claims.

Claims

1. A display device, comprising:

a display substrate having a first region and at least a second region adjacent to each other;

a circuit board, at least part of which is arranged in the first area;

at least one conductive pad disposed on a first surface of the circuit board opposite to the display substrate;

at least one first double-sided tape arranged in the second area;

at least one conductive foam adhesive tape arranged on the first double-sided adhesive tape and the conductive pad; and

a cover plate, comprising:

a transparent substrate including a second surface facing the display substrate; and

at least one conductive layer at least partially covering the second surface,

wherein, the conductive foam tape is electrically connected with the conductive layer and the conductive pad.

2. The display device of claim 1, wherein the conductive foam tape comprises:

a conductive foam abutting against the first double-sided tape and the conductive pad; and

and the conductive double-sided tape is connected between the conductive foam and the conductive layer.

3. The display device of claim 2, wherein the conductive double-sided tape comprises:

a conductive substrate including a first side and a second side opposite to each other;

a first adhesive layer disposed on the first side and configured to adhere to the conductive layer; and

and the second adhesive layer is arranged on the second side and is configured to adhere the conductive foam.

4. The display device of claim 2, wherein the first double-sided tape comprises:

a first substrate including a third side and a fourth side opposite to each other;

a third adhesive layer disposed on the third side and configured to adhere the conductive foam; and

and a fourth adhesive layer disposed on the fourth side and configured to adhere to the display substrate.

5. The display device of claim 1, wherein the number of the second regions is two, the first region is located between the second regions, the number of the first double-sided tapes is two, the first double-sided tapes are respectively disposed on the corresponding second regions, the number of the conductive pads is two, the conductive pads are separated from each other, the number of the foam tapes is two, the foam tapes are separated from each other and respectively disposed on the corresponding first double-sided tapes and the corresponding conductive pads, the number of the conductive layers is two, the conductive layers are separated from each other and respectively electrically connected to the corresponding foam tapes.

6. The display device of claim 5, wherein each of the plurality of foam strips comprises:

the conductive foam is abutted against the corresponding first double-sided tape and the corresponding conductive pad; and

and the conductive double-sided adhesive tape is connected between the corresponding conductive foam and the corresponding conductive layer.

7. The display device of claim 6, further comprising:

and the second double-sided adhesive tape is positioned between the conductive pads and connected between the conductive foam and the circuit board.

8. The display device of claim 7, wherein the second double-sided tape comprises:

a second substrate including a fifth side and a sixth side opposite to each other;

a fifth bonding layer disposed on the fifth side and configured to adhere the conductive foams; and

and the sixth bonding layer is arranged on the sixth side and is configured to be adhered to the circuit board.

9. An assembly method of a display device includes:

providing a display substrate, wherein the display substrate is provided with a first area and a plurality of second areas, the first area is positioned between the second areas, a circuit board is at least partially arranged 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 one surface of the circuit board far away from the display substrate;

providing a first auxiliary member configured with a plurality of first double-sided adhesive tapes;

the first auxiliary component pair is arranged on the display substrate, so that each first double-sided adhesive tape is adhered to the corresponding second area;

removing the first auxiliary piece to separate the first double-sided adhesive tapes from the first auxiliary piece;

providing a second auxiliary member configured with a plurality of conductive foam tapes;

the second auxiliary component pair is arranged on the display substrate, so that each conductive foam adhesive tape is adhered to the corresponding first double-sided adhesive tape and is electrically connected with the corresponding conductive pad; and

and removing the second auxiliary piece to separate the conductive foam tapes from the second auxiliary piece.

10. The method of claim 9, wherein the step of providing the second auxiliary member with the plurality of foam strips comprises:

a conductive foam; and

a conductive double-sided tape connecting the second auxiliary member and the conductive foam.

11. The method of assembling of claim 10, further comprising:

and covering the display substrate with a cover plate, so that the conductive layers of the cover plate are respectively connected with the corresponding conductive double-sided adhesive tapes.

12. The method of claim 10, wherein the step of providing the first auxiliary member with the first double-sided tapes is performed, each of the first double-sided tapes comprising:

a first substrate including a first side and a second side opposite to the first side;

the first adhesive layer is arranged on the first side and connected with the first auxiliary piece; and

and the second bonding layer is arranged on the second side.

13. The method of assembling of claim 10, further comprising:

providing the first auxiliary member configured with a second double-sided tape;

the first auxiliary component pair is arranged on the display substrate, so that the second double-sided adhesive tape is adhered to the circuit board and located between the conductive pads; and

removing the first auxiliary member to separate the second double-sided tape from the first auxiliary member,

wherein, the assembling method further comprises:

and the second auxiliary component pair is arranged on the display substrate, so that the conductive foam is respectively adhered to the second double-sided adhesive tape.

14. The method of assembling of claim 13, wherein the step of providing the first auxiliary with the second double-sided adhesive tape comprises:

a second substrate including a third side and a fourth side opposite to the third side;

a third adhesive layer disposed on the third side and connected to the first auxiliary member; and

a fourth adhesive layer disposed on the fourth side.