TWI452768B - Single fpc board for connecting multiple modules and touch sensitive display module using the same - Google Patents

Description

Single-chip flexible circuit board connecting multiple modules and touch display module using same

The present invention relates to a flexible printed circuit board (FPC board), and more particularly to a single-chip flexible circuit board for connecting multiple modules and a touch display module using the same.

Touch panels are widely used in various electronic products today. In particular, many display panels are currently equipped with a touch panel, so that the user can directly select and press the screen with a finger or an operation pen. For example, the driving principle of the resistive touch panel is to use a voltage drop to sense the coordinate point of the pressed position; and the capacitive touch panel is to form a uniform electric field on the panel and induce the current in the pressed position to calculate Its coordinate point. After that, the flexible circuit board and the control circuit can perform data processing according to the coordinate point, and generate images on the display panel to provide a more convenient and user-friendly operation interface for the user.

Please refer to FIGS. 1 and 2 , which respectively show a schematic diagram and an assembly structure diagram of a conventional touch display module. The touch display module 100 is composed of a display panel 110, a touch panel 120, and a motherboard 130. The display panel 110 has a first flexible circuit board 142 and a connector 144. The touch panel 120 has a second flexible circuit board 140. A cover 150 covers the touch panel 120. The touch panel 120 is disposed on the display panel 110, and the touch panel 120 and the display panel 110 can be attached by bonding glue. After the second flexible circuit board 140 is connected to the first flexible circuit board 142 through the connector 144, the first flexible circuit board 142 is electrically connected to the motherboard 130 through the connector 132 on the motherboard 130.

In the above assembled structure, two flexible circuit boards 140, 142 must be used and connected to each other through the connector 144, so assembly work is increased, and a large space must be reserved to facilitate assembly of the flexible circuit board. Also because the number of flexible boards is two, it is bound to increase costs and generate more waste in the production process.

The invention relates to a single-chip flexible circuit board connecting multiple modules and a touch display module using the same, which can simplify assembly time of multiple modules and can effectively reduce the need for assembling flexible circuit boards. Space to meet the requirements of thinning. In addition, the flexible circuit board is made of a single film, so the cost is reduced and the waste generated in the manufacturing process is reduced.

According to an aspect of the invention, a single-chip flexible circuit board connected to a multi-module is provided, comprising a film, at least one first line and at least one second line. The film has a first module connecting portion, a second module connecting portion and a third module connecting portion. The at least one first line is disposed between the first module connection portion and the second module connection portion. The at least one second line is disposed between the first module connection portion and the third module connection portion.

According to another aspect of the present invention, a touch display module includes a first module, a second module, a third module, and a single-chip flexible circuit board. The second module is disposed on the first module. The third module is adjacent to the first module, and the first module is located between the second module and the third module. The monolithic flexible circuit board connects the first module, the second module, and the third module.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

The single-chip flexible circuit board connected to the multi-module of the embodiment uses a single film design to connect three or more modules, such as a display panel, a touch panel and a motherboard, to transmit related Electronic signal. In one embodiment, the monolithic flexible circuit board is designed to be electrically connected between the display panel and the touch panel through a reverse fold connection. In another embodiment, the monolithic flexible circuit board is electrically connected between the display panel and the touch panel through the design of the split connection. Therefore, only one flexible circuit board is needed, and no additional connector is needed to connect between the touch panel and the display panel, thereby simplifying assembly time of the multi-module and effectively reducing the assembly of the flexible circuit board. The space required to achieve the requirements of thinning.

The following is a detailed description of the touch display module, and the embodiments are only used as an example to illustrate the scope of the present invention.

First embodiment

Please refer to FIGS. 3A-3C and FIG. 4 , wherein FIGS. 3A-3C are respectively assembled diagrams of the touch display module according to an embodiment of the invention. FIG. 4 is a schematic diagram of a single-chip flexible circuit board connecting multiple modules according to an embodiment of the invention. The touch display module 200 includes a first module 210, a second module 220, a third module 230, and a single-chip flexible circuit board 240. The monolithic flexible circuit board 240 is connected to the first module 210, the second module 220, and the third module 230. The first module 210 is, for example, a display panel. The second module 220 is, for example, a touch panel, and is disposed on the first module 210. The third module 230 is, for example, a motherboard, and is adjacent to the first module 210. Preferably, the first module 210 is disposed between the second module 220 and the third module 230. In one embodiment, the touch panel can be attached to the lower surface of the cover 250 (as shown in FIG. 3A ), which is an out cell solution touch panel or fabricated on the cover 250 The touch-sensing transparent conductive layer 222 (as shown in FIG. 3B ) becomes a touch panel of a single glass solution or integrates the touch-sensing transparent conductive layer 222 onto the display panel Or embedded in a color filter (as shown in FIG. 3C), it becomes a touch display panel of an on cell/in cell solution.

Referring to FIG. 4, the monolithic flexible circuit board 240 has a single film 241. The film 241 has a first module connecting portion 242, a second module connecting portion 244, a third module connecting portion 246, a reverse folding portion 248, and a slot S. The first module connecting portion 242 is, for example, a display panel connecting portion, and has a plurality of first bonding pads B1, such as gold fingers, and each of the first connecting pads can be connected to the first module 210 by a conductive adhesive to transmit related Electronic signal. The second module connection portion 244 is, for example, a touch panel connection portion, and has a plurality of second bonding pads B2, such as gold fingers, and each of the second bonding pads B2 can be connected to the second module 220 by a conductive adhesive. Transmit relevant electronic signals. In addition, the third module connecting portion 246 is, for example, a motherboard connecting portion, and has a plurality of third bonding pads B3, such as gold fingers, and each of the third bonding pads B3 can be connected to the connector 232 on the third module 230. The third module 230 is electrically connected to transmit related electronic signals. In addition to the connector 232, the third bonding pad B3 can be electrically connected to the third module 230 in other manners.

Referring to FIG. 4, the first module connecting portion 242 is divided into a first signal connecting portion 242a and a second signal connecting portion 242b according to different sources of signals, and is electrically connected to the first line 243 and the second line 245, respectively. connection. A plurality of first lines 243 (at least one) are disposed between the first module connection portion 242 and the second module connection portion 244 to transmit a first type of signal, such as a touch sensing signal. The control wafer in the display panel performs coordinate point calculation based on the sensed data of the touch position. In addition, a plurality of second lines 245 (at least one) are disposed between the first module connecting portion 242 and the third module connecting portion 246 to transmit a second type of signal, such as a driving signal of the display panel. The image is generated on the display panel, and the touch display operation is completed.

Please refer to FIGS. 5A-5D for an embodiment of an assembly flowchart of the touch display module. In FIG. 5A, the first module connecting portion 242 on the first side L1 of the film 241 is joined to the first module 210. In FIG. 5B, the second module connection portion 244 on the second side L2 of the film 241 is joined to the second module 220. The slot S is separated between the second module connecting portion 244 and the third module connecting portion 246, and the folding portion 248 is located between the first module connecting portion 242 and the second module connecting portion 244. Therefore, the second module connecting portion 244 can be stacked on the portion of the first module connecting portion 242 via a reverse folding design. At this time, the third module connecting portion 246 located on the second side L2 of the film 241 is not folded back. In FIG. 5D, the third module connection portion 246 is joined to the connector 232 of the third module 230. In this way, the assembly process of the touch display module 200 is completed to simplify the assembly man-hour of the multi-module. The above assembly process is only an embodiment, and the present invention does not limit the steps of the assembly process.

It should be noted that, in the above assembly process, the second module 220 is not limited to be stacked on the first module 210, or may be stacked under the first module 210, or with the first module 210. Maintain an appropriate spacing in the vertical direction. If the first module 210 and the second module 220 are not overlapped with each other, they may be juxtaposed in parallel, and may also maintain an appropriate spacing in the horizontal direction. In addition, the first bonding pad B1 of the first module connecting portion 242 is not limited to be connected to the upper side of the first module 210, and may be connected to the lower side of the first module 210. The second bonding pad B2 of the second module connecting portion 244 is not limited to be connected to the lower side of the second module 220, and may be connected to the upper side of the second module 220. The third bonding pad B3 of the third module connecting portion 246 is not limited to be connected to the upper side of the third module 230, and may be connected to the lower side of the third module 230. In addition, it is not limited to the rectangular shape of the single-chip flexible circuit board 240 shown in FIG. 4, and may have any shape. For example, the film 241 may extend in a direction to the second module connecting portion 244. Or extending to the direction of the third module connecting portion 246, or extending to the left or the right or both sides, or any combination of the above extending directions to add a single-chip flexible circuit board Flexibility or application/assembly flexibility. In addition, the length and width of the slot S may be determined according to design or application requirements. For example, although the slot S shown above has a width, in practice, only one line may be cut (ie, the width of the slot S is nearly zero). ), or the shape or width of the slot itself changes to make a change or extend direction to make a turn. In addition, depending on the design requirements, more slots can be designed to increase the flexibility or application/assembly flexibility of the monolithic flexible circuit board. Therefore, the above assembly process can be adjusted and combined according to actual needs, and the invention is not limited.

Second embodiment

Please refer to FIGS. 6A-6C and 7A-7B. FIG. 6A to FIG. 6C respectively show the assembled structure of the touch display module according to an embodiment of the invention. 7A and 7B are schematic diagrams showing a single-chip flexible circuit board connected to a multi-module according to two embodiments of the present invention, which are respectively applicable to the assembly structure of FIGS. 6A-6C. The touch display module 300 includes a first module 310, a second module 320, a third module 330, and a monolithic flexible circuit board 340. The first module 310 is, for example, a display panel. The second module 320 is, for example, a touch panel. The third module 330 is, for example, a motherboard. In one embodiment, the touch panel can be attached to the lower surface of the cover 350 (as shown in FIG. 6A ), which is an out cell solution touch panel or fabricated on the cover 350 The touch-sensing transparent conductive layer 322 (as shown in FIG. 6B) becomes a touch panel of a single glass solution or integrates the touch-sensing transparent conductive layer 322 to the display panel It is mounted on a color filter (as shown in FIG. 6C), and becomes a touch display panel of an on cell/in cell solution.

Referring to FIGS. 7A and 7B, the monolithic flexible circuit board 340 has a single film 341. The film 341 has a first module connecting portion 342, a second module connecting portion 344, a third module connecting portion 346, and a first slot S1. The first module connecting portion 342 is, for example, a display panel connecting portion, and has a plurality of first bonding pads B1, such as gold fingers, and each of the first bonding pads B1 can be connected to the first module 310 by a conductive adhesive for transmission. Related electronic signals. The second module connecting portion 344 is, for example, a touch panel connecting portion, and has a plurality of second bonding pads B2, such as gold fingers, and each of the second bonding pads B2 can be connected to the second module 320 by a conductive adhesive. Transmit relevant electronic signals. In addition, the third module connecting portion 346 is, for example, a motherboard connecting portion, and has a plurality of third bonding pads B3, such as gold fingers, and the third bonding pads B3 can be connected by the connector 332 on the third module 330. The third module 330 is electrically connected to transmit related electronic signals. In addition to the connector 332, the third bonding pad B3 can be electrically connected to the third module 330 in other manners.

Referring to FIGS. 7A and 7B, the first module connecting portion 342 is divided into a first signal connecting portion 342a and a second signal connecting portion 342b according to different sources of signals, and is respectively associated with the first line 343 and the second line 345. The electrical connection is used to transmit different types of signals, such as the touch sensing signal and the driving signal, as described in the first embodiment, and details are not described herein.

The main difference between the 7A and 7B is that in the 7A, the film 24341 further has a second slot S2 on the second side L2 of the film 24341, and the second slot S2 is separated from the first line 24343. Between the second line 24345 and the second line 24345 to increase the flexibility of the film 24341. The first slot S1 and the second slot S2 are located on different sides of the film 24341, and the respective lengths of the two can be determined according to design or application requirements, and the lengths of the two can be the same or different. For example, the lengths of the first slot S1 and the second slot S2 may each be about half of the length of the film to increase the flexibility of the film 241. In addition, in FIG. 7B, although the second S2 slot is not provided, the film 341 can be extended to the direction of the second module connecting portion 346 to increase the flexibility of the single-chip flexible circuit board 340.

Please refer to FIGS. 8A-8C for an embodiment of an assembly flowchart of the touch display module. Although the single-chip flexible circuit board 340 shown in FIG. 7A is taken as an example, it can be analogized to the case of the one-chip flexible circuit board 340 shown in FIG. In FIG. 8A, the first module connecting portion 342 on the first side L1 of the film 341 is joined to the first module 310. In FIG. 8B, the second module connecting portion 344 on the first side L1 of the film 341 is joined to the second module 320. At this time, the second module 320 is stacked on the first module 310. The first slot S1 is separated between the first module connecting portion 342 and the second module connecting portion 344. Therefore, the first module connecting portion 342 and the second module connecting portion 344 can be respectively located on the first module 310 and the second module 320 via the bifurcation design. Further, in FIG. 8C, the third module connecting portion 346 located on the second side L2 of the film 341 is joined to the connector 332 of the third module 330. In this way, the assembly process of the touch display module 300 is completed to simplify the assembly man-hour of the multi-module. The above assembly process is only an embodiment, and the present invention does not limit the steps of the assembly process.

It should be noted that, in the above assembly process, the second module 320 is not limited to be stacked on the first module 310, or may be stacked under the first module 310, or with the first module 310. Maintain an appropriate spacing in the vertical direction. If the first module 310 and the second module 320 are not overlapped with each other, they may be juxtaposed in parallel, and may also maintain an appropriate spacing in the horizontal direction. In addition, the first bonding pad B1 of the first module connecting portion 342 is not limited to be connected to the upper side of the first module 310, and may be connected to the lower side of the first module 310. The second bonding pad B2 of the second module connecting portion 344 is not limited to be connected to the upper side of the second module 320, and may be connected to the lower side of the second module 320. The third bonding pad B3 of the third module connecting portion 346 is not limited to be connected to the upper side of the third module 330, and may be connected to the lower side of the third module 330. In addition, it is not limited to the rectangular shape of the single-chip flexible circuit board 340 shown in FIGS. 7A and 7B, and may have any shape. For example, the film 341 may be connected to the first module connecting portion 342 (342a or 342b or The direction of the two is extended regionally, or extends in the direction of the second module connecting portion 344 or in the opposite direction, or extends in the direction of the third module connecting portion 346, or can be The left side or the right side or both sides are regionally extended, or any combination of the above extending directions, to increase the flexibility or application/assembly flexibility of the single-chip flexible circuit board. In addition, the length and width of the first slot S1 and the second slot S2 may be determined according to design or application requirements. For example, although the first slot S1 and the second slot S2 have widths as described above, actually Only one line can be cut out (ie, the width of the first slot S1 and the second slot S2 is nearly zero), or the shape or width of the slot itself can be changed or extended to make a turning. In addition, depending on the design requirements, more slots can be designed to increase the flexibility or application/assembly flexibility of the monolithic flexible circuit board. Therefore, the above assembly process can be adjusted according to actual needs, and the invention is not limited.

Third embodiment

9A-9B are schematic views respectively showing a single-chip flexible circuit board connecting multiple modules according to two embodiments of the present invention. The monolithic flexible circuit board 440 has a single film 441. The film 441 has a first module connecting portion 442, a second module connecting portion 444, a third module connecting portion 446, a first slot S1 and a second slot S2. The two embodiments are similar to the second embodiment. The main difference is that the first slot S1 and the second slot S2 are located on the same side of the film 441, and the second module connecting portion 444 is located at the first slot S1 and the second slot. Slot between S2.

In the two embodiments, the first module connecting portion 442 is divided into the first signal connecting portion 442a and the second signal connecting portion 442b according to the source of the signal. The first slot S1 is separated between the first signal connecting portion 442a and the second module connecting portion 444, and the second slot S is separated between the second signal connecting portion 442b and the second module connecting portion 444. The first signal connection portion 442a is electrically connected to the first line 443 to transmit a first type of signal, such as a touch sensing signal. The second signal connection portion 442b is electrically connected to the second line 445 to transmit a second type of signal, such as a driving signal of the display panel.

The difference between the 9A and 9B is that in the 9B, the second module connecting portion 444 further has an extending portion 447 protruding from the first side L1 of the film 441 to make the first line 443 The outer extension is to increase the flexibility of the film 441. In addition, the first line 443 can also extend to the left or right by an appropriate length in accordance with the size design of the film 441, so that the second module connecting portion 444 is not deformed by excessive deflection, and can be accurately fixed to the second mode. Group 220 to improve the reliability of the assembly. It should be noted that in the 7A and 7B drawings, the second module connecting portion 344 can also extend out of the film 341 by the same design. In addition, it is not limited to the rectangular shape of the single-chip flexible circuit board 440 shown in FIGS. 9A and 9B, and may have any shape. For example, the film 441 may be connected to the first module connection portion 342 (342a or 342b or The direction of the two is extended regionally, or extends in the direction of the second module connecting portion 344 or in the opposite direction, or extends in the direction of the third module connecting portion 346, or can be The left side or the right side or both sides are regionally extended, or any combination of the above extending directions, to increase the flexibility or application/assembly flexibility of the single-chip flexible circuit board. In addition, the length and width of the first slot S1 and the second slot S2 may be determined according to design or application requirements. For example, although the first slot S1 and the second slot S2 have widths as described above, actually Only one line can be cut out (ie, the width of the first slot S1 and the second slot S2 is nearly zero), or the shape or width of the slot itself can be changed or extended to make a turning. In addition, depending on the design requirements, more slots can be designed to increase the flexibility or application/assembly flexibility of the monolithic flexible circuit board. In addition, the assembly structure and assembly process of the touch display module related to the drawings of FIGS. 9A and 9B can be derived from the description of the second embodiment, and will not be further described herein for the sake of brevity.

The single-chip flexible circuit board connected to the multi-module disclosed in the above embodiments of the present invention uses a single film design to connect at least two modules to transmit related electronic signals. Since only one flexible circuit board is needed, it is not necessary to connect between the touch panel and the display panel through the connector, which is more convenient to assemble, so as to simplify assembly time of the multi-module. In addition, the flexible circuit board is made of a single film, and when the size is designed, the largest number of films can be produced with the smallest size, so that unnecessary waste in the production process can be reduced, thereby reducing the cost.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100. . . Touch display module

110. . . Display panel

120. . . Touch panel

130. . . motherboard

132. . . Connector

140. . . Second flexible circuit board

142. . . First flexible circuit board

144. . . Connector

200, 300. . . Touch display module

210, 310. . . First module

220, 320. . . Second module

222, 322. . . Transparent conductive layer

230, 330. . . Third module

232, 332. . . Connector

240, 340, 440. . . Monolithic flexible circuit board

241, 341, 441. . . film

242, 342, 442. . . First module connection

242a, 342a, 442a. . . First signal connection

242b, 342b, 442b. . . Second signal connection

243, 343, 443. . . First line

244, 344, 444. . . Second module connection

245, 345, 445. . . Second line

246, 346, 446. . . Third module connection

248. . . Reverse folding

447. . . Extension

B1. . . First bond pad

B2. . . Second bonding pad

B3. . . Third bonding pad

L1. . . First side

L2. . . Second side

S, S1, S2. . . Slotting

The first and second figures respectively show a schematic diagram and an assembly structure diagram of a conventional touch display module.

3A-3C are respectively assembled structural diagrams of a touch display module according to an embodiment of the invention.

FIG. 4 is a schematic diagram of a single-chip flexible circuit board connecting multiple modules according to an embodiment of the invention.

5A-5D illustrate a flow chart of assembly of the touch display module.

6A-6C are respectively assembled structural diagrams of a touch display module according to an embodiment of the invention.

7A and 7B are schematic views respectively showing a single-chip flexible circuit board connecting multiple modules according to an embodiment of the invention.

8A-8C are diagrams showing the assembly of the touch display module.

9A-9B are schematic diagrams respectively showing a single-chip flexible circuit board connecting multiple modules according to an embodiment of the invention.

240. . . Monolithic flexible circuit board

241. . . film

242. . . First module connection

242a. . . First signal connection

242b. . . Second signal connection

243. . . First line

244. . . Second module connection

245. . . Second line

246. . . Third module connection

248. . . Reverse folding

B1. . . First bond pad

B2. . . Second bonding pad

B3. . . Third bonding pad

L1. . . First side

L2. . . Second side

S. . . Slotting

Claims (18)

A single-chip flexible circuit board connected to a multi-module, comprising: a film having a first module connecting portion, a second module connecting portion and a third module connecting portion, the first to third modes The group connection portion is a display panel connection portion, a touch panel connection portion, and a motherboard connection portion, wherein each of the first module connection portion, the second module connection portion, and the third module connection portion One of the first side or the second side of the film, the first side is opposite to the second side; at least one first line is connected to the first module connecting portion and the second module And the at least one second line is connected between the first module connecting portion and the third module connecting portion; wherein the first module connecting portion is located on the first side of the film, The first module connection portion is divided into a first signal connection portion and a second signal connection portion, and is electrically connected to the at least one first line and the at least one second line respectively, the second module connection portion and The third module connecting portion is located on the second side of the film, and the second module The connection portion is electrically connected to the first signal connection portion through the at least one first line, and the third module connection portion is electrically connected to the second signal connection portion through the at least one second line. Slotting, the slot extending from the second side of the film to the inside of the film to separate the second module connecting portion and the third module connecting portion. The one-chip flexible circuit as described in claim 1 The board has a reflexed portion, and the reflexed portion is located between the first signal connecting portion and the second module connecting portion of the first module connecting portion. A touch display module comprising: first to third modules; and the one-chip flexible circuit board according to claim 1, wherein the first to third module connecting portions are respectively connected to the first One to third modules. The touch display module of claim 3, wherein the second and third modules are respectively located on the upper and lower sides of the first module. A touch display module includes: a first module; a second module disposed on the first module; a third module adjacent to the first module, the first module is located Between the second module and the third module; wherein the first module is a display panel, the second module is a touch panel, the third module is a motherboard; and a single-chip flexible circuit The first module, the second module, and the third module are connected to the first module, the second module, and the third module. The single-chip flexible circuit board includes: a film having a first module connection portion and a second module connection And a third module connection portion, wherein each of the first module connection portion, the second module connection portion, and the third module connection portion is disposed on a first side of the film or a first On the two sides, the first side is opposite to the second side; at least one first line is connected between the first module connecting portion and the second module connecting portion; and at least one second line is connected to the First module connection and The first module connecting portion is located on the first side of the film, and the first module connecting portion is divided into a first signal connecting portion and a second signal connecting portion. And electrically connected to the at least one first line and the at least one second line, the second module connecting portion and the third module connecting portion are located on the second side of the film, the second module The connection portion is electrically connected to the first signal connection portion through the at least one first line, and the third module connection portion is electrically connected to the second signal connection portion through the at least one second line. Slotting, the slot extending from the second side of the film to the inside of the film to separate the second module connecting portion and the third module connecting portion. The touch display module of claim 5, wherein the film further has a reversed portion, the folded portion is located at the first signal connecting portion and the second mode of the first module connecting portion Between the group connections. A single-chip flexible circuit board connected to a multi-module, comprising: a film having a first module connecting portion, a second module connecting portion and a third module connecting portion, wherein the first module is connected Each of the second module connection portion and the third module connection portion is disposed on a first side or a second side of the film, the first side being opposite to the second side; at least one a line connected between the first module connecting portion and the second module connecting portion; and at least one second line connected between the first module connecting portion and the third module connecting portion; The first module connecting portion and the second module connecting portion are located at the The first module connection portion is divided into a first signal connection portion and a second signal connection portion, and the second module connection portion is connected to the first signal through the at least one first line. The third module connection portion is electrically connected to the second signal connection portion, and the third module connection portion is electrically connected to the second signal connection portion through the at least one second line. a first slot and a second slot, the first slot is located on the first side of the film to separate the first module connection portion and the second module connection portion, the second slot is located The first side or the second side of the film to separate the at least one first line and the at least one second line. The one-piece flexible circuit board of claim 7, wherein the first slot and the second slot extend from the first side of the film toward the inside of the film. The one-piece flexible circuit board of claim 7, wherein the first slot extends from the first side of the film toward the inside of the film, and the second slot is from the second of the film The side extends to the inside of the film. A touch display module comprising: first to third modules; and the one-chip flexible circuit board according to claim 7, wherein the first to third module connecting portions are respectively connected to the first One to third modules. The touch display module of claim 10, wherein the second and third modules are respectively located on the upper and lower sides of the first module. A touch display module includes: a first module; a second module disposed on the first module; a third module adjacent to the first module, the first module being located between the second module and the third module; a single-chip flexible circuit board, the first module, the second module, and the third module, the single-chip flexible circuit board includes: a film, the film has a first module connection portion, a second module connecting portion and a third module connecting portion, wherein each of the first module connecting portion, the second module connecting portion and the third module connecting portion is disposed on one of the films a first side or a second side, the first side is opposite to the second side; at least one first line is connected between the first module connecting portion and the second module connecting portion; and at least one The second circuit is connected between the first module connecting portion and the third module connecting portion; wherein the first module connecting portion and the second module connecting portion are located on the first side of the film, The first module connecting portion is divided into a first signal connecting portion and a second signal connecting portion, and the second module connecting portion transmits the through The first circuit is electrically connected to the first signal connection portion, the third module connection portion is located on the second side of the film, and the third module connection portion is transmitted through the at least one second line and the second signal The connecting portion is electrically connected, the film further has a first slot and a second slot, the first slot is located on the first side of the film to separate the first module connecting portion and the second die a second connecting slot on the first side or the second side of the film to separate the at least one first line and the at least one second line. The touch display module of claim 12, wherein the first to third module connection portions are a display panel connection portion, a touch panel connection portion, and a motherboard connection portion. The touch display module of claim 12, wherein the first slot and the second slot extend from the first side of the film toward the inside of the film. The touch display module of claim 12, wherein the first slot extends from the first side of the film toward the inside of the film, and the second slot is from the second side of the film Extending into the interior of the film. A single-chip flexible circuit board connected to a multi-module, comprising: a film having a first module connecting portion, a second module connecting portion and a third module connecting portion, the first to third modes The group connection portion is a display panel connection portion, a touch panel connection portion, and a motherboard connection portion, wherein each of the first module connection portion, the second module connection portion, and the third module connection portion One of the first side or the second side of the film, the first side is opposite to the second side; at least one first line is connected to the first module connecting portion and the second module And the at least one second line is connected between the first module connecting portion and the third module connecting portion; wherein the film further has a first slot, the first slot is from the thin The first side or the second side of the film extends toward the interior of the film such that the first side or the second side of the film has a notch or a fracture. A touch display module comprising: first to third modules; and the one-chip flexible circuit board according to claim 16, wherein the first to third module connecting portions are respectively connected to the first One to third modules. A touch display module includes: a first module; a second module disposed on the first module; a third module adjacent to the first module, the first module is located Between the second module and the third module; wherein the first module is a display panel, the second module is a touch panel, the third module is a motherboard; and a single-chip flexible circuit The single-chip flexible circuit board includes: a film having a first module connecting portion, a second module connecting portion, and a third module connecting portion, wherein the first module connecting portion, Each of the second module connecting portion and the third module connecting portion is disposed on a first side or a second side of the film, the first side is opposite to the second side, the first to the first The third module connecting portion is respectively connected to the first module, the second module and the third module; at least one first line is connected between the first module connecting portion and the second module connecting portion And at least one second line connected to the first module connection portion and Between the third module connecting portions, wherein the film further has a slot extending from the first side or the second side of the film toward the inside of the film to make the first film The side or the second side has a gap or a fracture.