CN216565725U - Flexible circuit board, display module assembly and electronic equipment - Google Patents

Abstract

The utility model discloses a flexible circuit board, a display module and electronic equipment. The flexible circuit board is applied to a display module. The flexible circuit board at least comprises a first area and a second area; the thickness of the second region is less than the thickness of the first region. The flexible circuit board adopts a structure with different thicknesses, so that the space occupied by the flexible circuit board can be reduced, and the battery volume can be improved under the condition of keeping the display module and the electronic equipment to be light and thin.

Description

Flexible circuit board, display module assembly and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a flexible printed circuit, a display module, and an electronic device.

Background

Electronic devices such as mobile phones and tablet computers have become essential scientific and technological products in the life, study and entertainment processes of people. At present, the electronic equipment who has used flexible display module assembly, its shell has more the aesthetic property on the whole, also can bring better display experience, receives more and more consumer's favor. The display module is generally connected with a control module of the electronic device through a flexible circuit board, and in order to improve the display effect, the part of the display panel is bent to the lower part of the display surface of the display module and is connected with the flexible circuit board.

In the correlation technique, the fingerprint identification module of part electronic equipment can set up in the below of the display surface of display module assembly to gather the fingerprint of the display surface of display module assembly, realize fingerprint identification under the screen. But because it can lead to the whole thickness of flexible line way board great to set up fingerprint identification module, can occupy battery space, is unfavorable for improving the battery volume.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flexible line way board, display module assembly and electronic equipment. The flexible circuit board adopts a structure with different thicknesses, so that the space occupied by the flexible circuit board can be reduced, and the battery volume can be improved under the condition of keeping the display module and the electronic equipment to be light and thin.

The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, a flexible circuit board is provided, which is applied to a display module. The flexible circuit board at least comprises a first area and a second area; the thickness of the second region is less than the thickness of the first region.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when this flexible line way board is applied to display module assembly, first region is used for settling fingerprint identification module, and the second region can offset with the battery, and the thickness in second region is less than the thickness in first region for the battery has more spaces, and then is favorable to keeping under display module assembly and electronic equipment's the condition of frivolousization, improves the battery volume.

The technical solution of the present disclosure is further explained below:

in one embodiment, the number of the second regions is two, the first region is disposed between the two second regions, one of the second regions is electrically connected to the display panel, and the other second region is capable of abutting against the battery.

In one embodiment, the first area is provided with a mounting area for mounting a fingerprint identification module.

In one embodiment, the flexible printed circuit further includes a through hole disposed between the first region and the second region, the through hole surrounding a portion of the mounting region.

In one embodiment, at least one of the first region and the second region is provided with a transition structure, the transition structure inclines from the direction of the first region to the direction of the second region, and the transition structure is arranged along the width direction of the flexible circuit board and is butted with one end of the through hole.

In one embodiment, the through hole is arranged in the middle of the flexible circuit board in the width direction, and the number of the transition structures is at least two, wherein the two transition structures are respectively butted with two ends of the through hole.

In one embodiment, the first region and the second region are in smooth transition; alternatively, the first region and the second region are rounded off.

In one embodiment, the second region is for abutting the battery.

According to a second aspect of the embodiments of the present disclosure, there is provided a display module including the flexible printed circuit board in any of the embodiments.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

when this display module assembly is applied to electronic equipment, first region is used for settling the fingerprint identification module, and the second region can offset with the battery, and the thickness in second region is less than the thickness in first region for the battery has more spaces, and then is favorable to keeping under display module assembly and electronic equipment's the condition of frivolousization, improves the battery volume.

The technical solution of the present disclosure is further explained below:

in one embodiment, the display module further comprises a substrate, a display panel and a fingerprint identification module; the substrate comprises a front surface and a back surface which are oppositely arranged, and the flexible circuit board is arranged on the back surface; the display panel comprises a display part, a bending part and a connecting part electrically connected with the flexible circuit board, wherein the display part is arranged on the front surface, the connecting part is arranged on the back surface, and the bending part is connected between the display part and the connecting part so as to enable the display part to be electrically connected with the connecting part through the bending part; the fingerprint identification module is arranged on the first area and arranged towards the display panel.

In one embodiment, the through hole of the flexible circuit board surrounds a portion of the fingerprint identification module.

In one embodiment, the display module further comprises at least two buffer members arranged on one side of the flexible circuit board far away from the substrate, and the at least two buffer members are arranged at intervals along the periphery of the fingerprint identification module.

In one embodiment, the display module further comprises a sealing layer, the sealing layer is clamped between the first area and the substrate, and the sealing layer is used for surrounding at least part of the fingerprint identification module.

In one embodiment, the fingerprint identification module is fixedly arranged in the first area and is arranged between the back surface of the substrate and the flexible circuit board;

or, the flexible circuit board includes mounting through hole, and mounting through hole sets up in first region, and the part of fingerprint identification module passes mounting through hole to set up between the back of base plate and the flexible circuit board.

In one embodiment, the fingerprint identification module comprises an identification part arranged towards the display panel, the substrate is provided with a first light-transmitting area arranged opposite to the identification part, the display panel is provided with a second light-transmitting area arranged opposite to the identification part, and the second light-transmitting area is arranged opposite to the first light-transmitting area.

In one embodiment, the second light-transmitting area is provided with a light-emitting unit used for emitting light when the fingerprint identification module is started, and the flexible circuit board can control the light-emitting unit to be turned on or turned off;

the display panel comprises a display circuit, the flexible circuit board is used for controlling the display circuit to display images, and when the display circuit displays the images, the flexible circuit board controls the light-emitting unit to be closed; when the display circuit does not display images, the flexible circuit board can open the light-emitting unit when the fingerprint identification module starts, and close the light-emitting unit when the fingerprint identification module closes.

According to a third aspect of the embodiments of the present disclosure, an electronic device is further provided, which includes a housing assembly, a control module, and the display module in any of the embodiments, where the display module is disposed on the housing assembly, and the flexible circuit board is electrically connected to the control module.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the electronic equipment adopts the display module, the display module can reduce occupied space, is favorable for keeping the light and thin conditions of the display module and the electronic equipment, improves the volume of the battery, can improve the capacity of the battery and is favorable for improving the cruising ability of the electronic equipment.

The technical solution of the present disclosure is further explained below:

in one embodiment, the electronic device further comprises a battery, a portion of the battery abutting the second region.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

Brief description of the drawingsthe accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not intended to limit the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device shown in an embodiment.

Fig. 2 is a schematic partial cross-sectional view of the electronic device shown in fig. 1 in a first longitudinal direction.

Fig. 3 is a schematic partial cross-sectional view of the electronic device shown in fig. 1 in a second longitudinal direction.

Fig. 4 is a bottom view of the display module shown in fig. 1.

Fig. 5 is a partial cross-sectional view of the display module shown in fig. 3 in the length direction.

Fig. 6 is a schematic diagram of an internal hardware structure of the electronic device shown in an embodiment.

Description of reference numerals:

10. an electronic device; 11. a processing component; 12. a memory; 13. a power supply component; 14. a multimedia component; 15. an audio component; 16. an input/output interface; 17. a sensor assembly; 18. a communication component; 100. a display module; 110. a flexible circuit board; 111. a first region; 112. a second region; 113. a through hole; 114. an installation area; 1141. mounting a through hole; 115. a transition structure; 120. a substrate; 121. a front side; 122. a back side; 123. a first light-transmitting region; 130. a display panel; 131. a display unit; 132. a bending section; 133. a connecting portion; 134. a second light-transmitting region; 140. a fingerprint identification module; 141. an identification unit; 150. a buffer member; 160. a sealing layer; 170. a protective layer; 180. a polarizer; 190. a light-transmitting adhesive; 101. a light-transmitting cover plate; 200. a housing assembly; 210. protecting the space; 300. a control module; 400. a battery.

Detailed Description

For the purpose of making the purpose, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail below with reference to the accompanying drawings and detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Electronic devices such as mobile phones and tablet computers have become essential scientific and technological products in the life, study and entertainment processes of people, and bring much convenience and fun to the life of people. With the development of the diversification of the functions of the electronic equipment, the electronic equipment has various types and brands, so that many electronic equipment can be selected by consumers, the requirements of people on the electronic equipment cannot be met only by improving the functional characteristics of the electronic equipment, and the cruising ability of the electronic equipment also becomes an important factor influencing the competitiveness of electronic products. Among electronic devices with similar functions or performances, the higher the cruising ability of the electronic devices, the more attractive the consumers to purchase.

As the application of the display module is more mature, the application of the display module to the electronic device is more extensive. And used flexible display module's electronic equipment, its shell has more the aesthetic property on the whole, also can bring better display experience, receives more and more consumer's favor.

In the related art, the display module is usually connected to a control module of the electronic device through a flexible printed circuit board, and in order to improve the display effect, a portion of the display panel is bent to a position below a display surface of the display module and connected to the flexible printed circuit board. The fingerprint identification module of part electronic equipment can set up in the below of display module's display surface to gather the fingerprint of display module's display surface, realize fingerprint identification under the screen. However, the whole thickness of the flexible circuit board is large due to the fact that the fingerprint identification module is arranged, the battery space is occupied under the condition that the electronic equipment is kept light and thin, and the improvement of the battery volume is not facilitated.

In order to solve the above problems, embodiments of the present disclosure provide a flexible printed circuit, a display module, and an electronic device, where the display module and the electronic device include flexible printed circuit boards with different thicknesses, and the thickness of a region of the flexible printed circuit board corresponding to a battery is smaller than the thickness of other positions. Through setting up this flexible line way board into the structure of not uniform thickness, can reduce the shared space of flexible line way board, be favorable to keeping under the condition of the frivolousization of display module assembly and electronic equipment, improve the battery volume, increase battery capacity is favorable to improving electronic equipment's duration.

Specifically, as shown in fig. 1 to 4, in an embodiment of the present disclosure, the electronic device 10 includes a display module 100, a housing assembly 200, and a control module 300, wherein the display module 100 is disposed on the housing assembly 200, and the flexible circuit board 110 is electrically connected to the control module 300.

As shown in fig. 2 and 3, the display module 100 includes a flexible printed circuit 110, the flexible printed circuit 110 has a structure with different thicknesses, and the flexible printed circuit 110 at least includes a first region 111 and a second region 112; the thickness of the second region 112 is smaller than the thickness of the first region 111. It is understood that the second region 112 includes at least a region corresponding to the battery 400, that is, the second region 112 and the battery 400 are at least partially overlapped in an orthographic projection in a predetermined direction (for example, in a direction perpendicular to the screen or a display direction). Thus, when the flexible circuit board 110 is applied to the display module 100, the first region 111 is used for placing the fingerprint identification module 140, the second region 112 can abut against the battery 400, and the thickness of the second region 112 is smaller than that of the first region 111, so that the battery 400 has more space, and the size of the battery 400 is increased under the condition that the display module 100 and the electronic device 10 are kept light and thin.

The electronic device 10 employs the display module 100, and the display module 100 can reduce the occupied space, thereby being beneficial to increasing the volume of the battery 400 under the condition of keeping the display module 100 and the electronic device 10 light and thin, further being capable of increasing the capacity of the battery 400, and being beneficial to increasing the cruising ability of the electronic device 10.

It should be noted that the flexible printed circuit 110 includes a multi-layer printed circuit board, and at least the first region 111 is a multi-layer printed circuit board structure. For example: the first region 111 is a two-layer circuit board, and the second region 112 is a single-layer circuit board. Alternatively, the first region 111 and the second region 112 are both multilayer circuit boards, and the number of layers of the second region 112 is less than that of the first region 111. For example, the first region 111 is a four-layer circuit board, and the second region 112 is a two-layer circuit board. It should be noted that the number of layers of the circuit board in the first region 111 and the second region 112 is not specifically limited in this embodiment.

As shown in fig. 2 and 3, in some embodiments, the display module 100 further includes a substrate 120, a display panel 130, and a fingerprint identification module 140; the substrate 120 includes a front surface 121 and a back surface 122 oppositely disposed, and the flexible circuit board 110 is disposed on the back surface 122; the display panel 130 includes a display portion 131, a bending portion 132 and a connecting portion 133 electrically connected to the flexible circuit board 110, the display portion 131 is disposed on the front surface 121, the connecting portion 133 is disposed on the rear surface 122, and the bending portion 132 is connected between the display portion 131 and the connecting portion 133, so that the display portion 131 is electrically connected to the connecting portion 133 through the bending portion 132; the fingerprint identification module 140 is disposed on the first region 111 and is disposed toward the display panel 130. In this way, the display portion 131 of the display panel 130 is disposed on the front surface 121 of the substrate 120, and the connecting portion 133 of the display panel 130 is disposed on the back surface 122 of the substrate 120 through the bending portion 132, so as to be electrically connected to the flexible circuit board 110 on the back surface 122, so that the control module 300 drives the display panel 130 through the flexible circuit board 110 for displaying. In addition, the fingerprint identification module 140 is integrated into the display module 100, which is beneficial to improving the assembly efficiency of the electronic device 10.

Further, as shown in fig. 2 and fig. 4, the display module 100 further includes at least two buffering members 150 disposed on one side of the flexible circuit board 110 away from the substrate 120, and the at least two buffering members 150 are disposed at intervals along the periphery of the fingerprint identification module 140. It should be noted that the specific implementation manner of the buffer 150 may be various, including but not limited to buffer foam, buffer glue, etc. Thus, the buffering member 150 is disposed on the flexible circuit board 110 to form a buffering space, so as to protect the fingerprint identification module 140, and facilitate the protection of the fingerprint identification module 140 to be reliably fixed on the display module 100.

On the basis of any of the above embodiments, as shown in fig. 2, the display module 100 further includes a sealing layer 160, the sealing layer 160 is sandwiched between the first region 111 and the substrate 120, and the sealing layer 160 is used for surrounding at least a portion of the fingerprint identification module 140. The sealing layer 160 may be a sealing foam or a sealant. Therefore, the fingerprint identification module 140 can be sealed, the extrusion force applied to the fingerprint identification module 140 can be buffered, and the protection performance of the fingerprint identification module 140 is further improved. In this way, the sealing layer 160 may seal the fingerprint identification module 140 between the first region 111 and the substrate 120, thereby improving the protection performance of the fingerprint identification module 140.

In addition to any of the above embodiments, as shown in fig. 2 and fig. 3, in some embodiments, the electronic device 10 further includes a battery 400, and a portion of the battery 400 abuts against the second region 112. Thus, the battery 400 can make full use of the flexible circuit portion to optimize the space to increase the volume of the battery 400, which is beneficial to increase the capacity of the battery 400. In addition, the portion of the battery 400 is against the second region 112, so that the internal structure of the electronic device 10 is more compact, and the electronic device 10 is lighter and thinner.

Note that "the portion of the battery 400 is in contact with the second region 112" includes direct contact or indirect contact, and the portion of the battery 400 may cover a partial region of the second region 112, and is not limited to a large number. That is, the orthographic projection of the second region 112 and the battery 400 in a predetermined direction (e.g., in a direction perpendicular to the screen or the display direction) at least partially overlaps.

On the basis of any of the above embodiments, the first region 111 and the second region 112 are smoothly transited; alternatively, the first region 111 and the second region 112 are rounded. Thus, when the battery 400 presses the second region 112, stress concentration can be reduced, and the internal fracture and damage of the flexible circuit board 110 caused by the stress can be avoided.

Furthermore, at least one transition structure 115 is arranged between the first area 111 and the second area 112, the transition structure 115 is inclined from the direction of the first area 111 to the direction of the second area 112, and the transition structure 115 is arranged along the width direction of the flexible circuit board 110 and is butted with one end of the through hole 113. Thus, when the battery 400 presses the second region 112, the transition structure 115 is engaged with the through hole 113, so as to reduce stress concentration and prevent the internal fracture of the flexible printed circuit 110 from damaging the battery.

On the basis of the above embodiments, as shown in fig. 2 and fig. 3, in some embodiments, the number of the second regions 112 is two, the first region 111 is disposed between the two second regions 112, one of the second regions 112 is electrically connected to the display panel 130, and the other second region 112 can be abutted against the battery 400. Therefore, when the electronic device is assembled, the flexible printed circuit 110 passes through one of the second regions 112 and the connecting portion 133, because the thickness of the second region 112 is smaller than that of the first region 111, the second region 112 and the connecting portion 133 are not too protruded, and the second region 112 and the connecting portion 133 are located on the same plane as far as possible with the fingerprint identification module 140 of the first region 111, so that the display module 100 is attached more tightly when being installed in the housing assembly 200, and stress concentration is reduced. The other second region 112 is opposite to the battery 400, so that the internal structure of the electronic device 10 is more compact, and the electronic device 10 is lighter and thinner.

When the number of the second regions 112 is two, the number of the transition structures 115 is at least two, wherein the two transition structures 115 are respectively butted with both ends of the through hole 113. Thus, the fingerprint identification module 140 is conveniently arranged in the middle of the electronic device 10 in the width direction, and a user can conveniently perform fingerprint identification operation.

In addition to any of the above embodiments, in some embodiments, the first region 111 and the second region 112 have a smooth transition therebetween; alternatively, the first region 111 and the second region 112 are rounded. Thus, when the battery 400 presses the second region 112, stress concentration can be reduced, and the internal fracture and damage of the flexible circuit board 110 caused by the stress can be avoided.

It should be noted that "smooth transition" includes a slope transition, for example, a transition using an inverted cone structure. The smooth transition comprises arc transition and utilizes a fillet structure for transition.

As shown in fig. 2 and 4, in some embodiments, the flexible printed circuit 110 further includes a through hole 113, the through hole 113 is disposed between the first region 111 and the second region 112, and the through hole 113 surrounds a portion of the fingerprint identification module 140. Therefore, the through hole 113 is convenient to avoid the fingerprint identification module 140, so that in the process that the battery 400 extrudes the second area 112, the extrusion force at the through hole 113 is weakened or disappears, the interference of the installation of the battery 400 on the fingerprint identification module 140 is reduced, and the installation accuracy of the fingerprint identification module 140 is ensured.

Further, in some embodiments, at least one of the first region 111 and the second region 112 is provided with a transition structure 115, the transition structure 115 is inclined from the direction of the first region 111 to the direction of the second region 112, and the transition structure 115 is disposed along the width direction of the flexible circuit board 110 and is abutted to one end of the through hole 113. Thus, when the battery 400 presses the second region 112, the transition structure 115 is engaged with the through hole 113, so as to reduce stress concentration and prevent the internal fracture of the flexible printed circuit 110 from damaging the battery.

Optionally, in some embodiments, the through hole 113 is disposed in the middle of the flexible printed circuit 110 in the width direction, and the number of the transition structures 115 is at least two, where two of the transition structures 115 are respectively butted against two ends of the through hole 113. Thus, the fingerprint identification module 140 is disposed in the middle of the electronic device 10 in the width direction, and the through hole 113 is used to reduce the pressing force applied to the fingerprint identification module 140, thereby improving the reliability of the fingerprint identification module 140. In addition, the fingerprint identification module 140 is disposed in the middle of the electronic device in the width direction, so that a user can conveniently perform fingerprint identification operation.

As shown in fig. 2 and fig. 4, in some embodiments, the display module 100 further includes at least two buffering members 150 disposed on a side of the flexible circuit board 110 away from the substrate 120, and the at least two buffering members 150 are disposed at intervals along the periphery of the fingerprint identification module 140. Thus, the buffering member 150 is disposed on the flexible circuit board 110 to form a buffering space, so as to protect the fingerprint identification module 140, and facilitate the protection of the fingerprint identification module 140 to be reliably fixed on the display module 100.

It should be noted that the specific implementation manner of the "buffer 150" may be various, including but not limited to buffer cotton, buffer glue, etc.

In addition, the number of the buffering members 150 may be set according to actual conditions.

Alternatively, as shown in FIG. 5, in some embodiments, the first region 111 is provided with a mounting area 114 for mounting the fingerprint recognition module 140, and the through hole 113 surrounds a portion of the mounting area 114. It should be noted that the "mounting area 114" may be implemented in various ways, such as a mounting surface or a mounting through hole 1141, which is capable of implementing the placement of the fingerprint identification module 140. Thus, the fingerprint identification module 140 is disposed in the first area 111 through the mounting area 114.

As shown in fig. 2 and fig. 4, in some embodiments, the flexible printed circuit board 110 includes a mounting through hole 1141, the mounting through hole 1141 is disposed in the first region 111, and a portion of the fingerprint identification module passes through the mounting through hole 1141 and is disposed between the back surface 122 of the substrate 120 and the flexible printed circuit board 110. Thus, the portion of the fingerprint identification module passes through the mounting through hole 1141 and is disposed between the back surface 122 of the substrate 120 and the flexible printed circuit board 110, and the portion of the fingerprint identification module 140 may protrude out of the flexible printed circuit board 110, so that the display module 100 may mount the fingerprint identification modules 140 integrated with different thicknesses to meet different requirements.

As shown in fig. 5, in other embodiments, the fingerprint identification module 140 is fixedly disposed in the first region 111 and disposed between the back surface 122 of the substrate 120 and the flexible circuit board 110. Thus, the fingerprint identification module 140 can be integrated on the flexible circuit board 110, so that the control module 300 can control the fingerprint identification module 140 and the display panel 130 through the flexible circuit board 110, which is beneficial to improving the assembly efficiency of the electronic device 10. It should be noted that the "fingerprint identification module 140" includes, but is not limited to, the optical fingerprint identification module 140 or the ultrasonic fingerprint identification module 140.

In addition to any of the above embodiments, as shown in fig. 2 or fig. 3, in some embodiments, the fingerprint identification module 140 includes an identification portion 141 disposed toward the display panel 130, the substrate 120 is disposed with a first transparent region 123 disposed opposite to the identification portion 141, the display panel 130 is disposed with a second transparent region 134 disposed opposite to the identification portion 141, and the second transparent region 134 is disposed opposite to the first transparent region 123. Thus, the first transparent area 123 and the second transparent area 134 are used to transmit external light to the identification portion 141 for identification, thereby realizing optical fingerprint identification.

In some embodiments, the first light-transmitting area 123 is a light-transmitting hole, and the second light-transmitting area 134 is a light-transmitting surface made of a light-transmitting material. This allows the thickness of the substrate 120 to be fully utilized to accommodate portions of the fingerprint identification module 140.

In some embodiments, the display module 100 further includes a protection layer 170, the protection layer 170 is disposed between the back surface 122 of the substrate 120 and the flexible circuit board 110, and the connecting portion 133, and the protection layer 170 has a third light-transmitting area (not labeled) opposite to the first light-transmitting area. Thus, the protective layer 170 can buffer the pressure received by the display module 100, thereby improving the display reliability of the display module 100. In addition, also can not disturb the work of fingerprint identification module through setting up the third printing opacity district.

Optionally, in an embodiment, the protection layer 170 includes a foam layer, a mesh glue layer disposed between the foam layer and the back surface 122, and an engineering film disposed between the foam layer and the shielding layer. In this way, the impact force can be buffered by replacing the foam layer, and the foam layer can be reliably fixed on the back surface 122 of the substrate 120 by using the grid adhesive layer.

The engineering film includes a polyimide film and the like.

It should be noted that the light supplement method of the fingerprint identification module 140 may be various, for example, a light emitting unit on the display panel 130 or other backlight modules are utilized, and not limited herein

On the basis of any one of the above embodiments of the first light-transmitting area 123, in some embodiments, the second light-transmitting area 134 is provided with a light-emitting unit (not shown) for emitting light when the fingerprint identification module is activated, and the flexible circuit board 110 can control the light-emitting unit to be turned on or off; the display panel 130 includes a display circuit (not shown), the flexible wiring board 110 is used for controlling the display circuit to display an image, and when the display circuit displays an image, the flexible wiring board 110 controls the light emitting unit to be turned off; when the display circuit does not display images, the flexible circuit board 110 can open the light-emitting unit when the fingerprint identification module is started, and close the light-emitting unit when the fingerprint identification module is closed. In this way, the control module 300 can control the display circuit and the light emitting unit to be turned on and off through the flexible circuit board 110. Specifically, when the display circuit displays an image, the control module 300 controls the light emitting unit to be turned off through the flexible wiring board 110, so that the light emitting unit does not interfere with the image display of the second light-transmitting region 134, thereby improving the display effect. And when the display circuit does not show the image, control module 300 can open the luminescence unit when the fingerprint identification module starts through flexible line way board 110, closes the luminescence unit when the fingerprint identification module closes, realizes the linkage of fingerprint identification module and luminescence unit.

The display circuit includes a pixel circuit and the like.

In order to further improve the display quality and reliability, the display module 100 may be further assembled to obtain better display effect and protection effect. As shown in fig. 2 and fig. 3, in some embodiments, the display module 100 further includes a polarizer 180, and the polarizer 180 is disposed above the display portion 131. Thus, the display quality of the display panel 130 can be improved by using the polarizer 180.

Referring back to fig. 2 and 3, in some embodiments, the display module 100 further includes a transparent adhesive 190 and a transparent cover plate 101, and the transparent cover plate 101 is disposed on the polarizer 180 through the transparent adhesive 190. Specific embodiments of the light-transmissive adhesive 190 include oca (optical Clear adhesive), etc. The transparent cover 101 includes a glass cover. In this way, the display quality can be further improved, and the flexible display panel 130 can be protected by the light-transmissive cover 101.

In addition to any of the above embodiments, in an embodiment, the back surface 122 of the substrate 120 is further provided with a shielding layer (not shown). The shielding layer comprises a coated metal layer or a rolled metal layer. Such as coated copper or rolled metallic copper. Thus, the shielding layer can reduce electromagnetic interference and improve the anti-interference capability of the display module 100.

As shown in fig. 2 and fig. 3, in some embodiments, the light-transmissive cover 101 and the housing assembly 200 cooperate to form a protection space 210, so that the electrical part of the display module 100 can be disposed in the protection space 210, so as to improve the protection performance of the electronic device 10.

It should be noted that the control module 300 includes a main control chip (the control module may be a motherboard), the main control chip includes a Processor, the Processor may be a Micro-controller Unit (MCU), a Central Processing Unit (CPU), a Digital Signal Processor (DSP), or the like, and in addition, the control module 300 further includes a communication Unit for communicating with other modules of the electronic device 10, such as the display module 100 of the present disclosure.

The electronic device 10 may include a handheld device, a vehicle-mounted device, a wearable device, a monitoring device, a cellular phone (cellular phone), a smart phone (smart phone), a Personal Digital Assistant (PDA) computer, a tablet computer, a laptop computer, a video camera, a video recorder, a camera, a smart watch (smart watch), a smart bracelet (smart bracelet), a vehicle-mounted computer, and other electronic devices 10 having an imaging function.

It can be understood that the technology of the present disclosure may increase the technological sense of the electronic device 10, bring more advanced consumption experience to people, let consumers feel the mind of manufacturers, and further improve the product competitiveness of the electronic device 10 of the present disclosure. If the electronic device 10 is a handheld device (e.g., a mobile phone or a tablet computer), the display module 100 can form a curved display effect on two sides of the middle frame, so as to provide a display effect of frameless display, and the display quality is better without display difference. Meanwhile, the palm of the user can frequently contact the curved surface, and better holding experience can be brought.

Further, as shown in fig. 6, a schematic diagram of an internal hardware structure of the electronic device 10 shown in an embodiment is shown.

Referring to FIG. 6, in some embodiments, electronic device 10 may also include one or more of the following components: processing component 11, memory 12, power supply component 13, multimedia component 14, audio component 15, interface for input/output 16, sensor component 17, and communication component 18.

The processing component 11 generally controls overall operation of the electronic device 10, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing assembly 11 may include one or more processors 1020 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 11 may include one or more modules that facilitate interaction between the processing component 11 and other components. For example, the processing component 11 may include a multimedia module to facilitate interaction between the multimedia component 14 and the processing component 11, such as a host chip.

The memory 12 is configured to store various types of data to support operations at the electronic device 10. Examples of such data include instructions for any application or method operating on the electronic device 10, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 12 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, and the like.

The power supply component 13 provides power to the various components of the electronic device 10. The power components 13 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 10.

The multimedia component 14 includes the display module 100 of the present disclosure to facilitate human-computer interaction. For example, the display panel 130 includes a touch panel body, and the display module 100 may be implemented as a touch screen to receive an input signal from a user. The touch pad body includes one or more touch sensors to sense touches, swipes, and gestures on the touch pad body. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 14 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the electronic device 10 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 15 is configured to output and/or input an audio signal. For example, the audio component 15 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 10 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 12 or transmitted via the communication component 18. In some embodiments, audio assembly 15 also includes a speaker for outputting audio signals.

The input/output interface 16 provides an interface between the processing component 11 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 17 includes one or more sensors for providing various aspects of status assessment for the electronic device 10. For example, the sensor assembly 17 may detect an open/closed state of the electronic device 10, the relative positioning of components, such as a display and keypad of the electronic device 10, the sensor assembly 17 may also detect a change in the position of the electronic device 10 or a component of the electronic device 10, the presence or absence of user contact with the electronic device 10, orientation or acceleration/deceleration of the electronic device 10, and a change in the temperature of the electronic device 10. The sensor assembly 17 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 17 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 17 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 18 is configured to facilitate wired or wireless communication between the electronic device 10 and other devices. The electronic device 10 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 18 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 18 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In the description of the present disclosure, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the disclosure and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the disclosure.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include at least one of the feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In the present disclosure, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show several embodiments of the present disclosure, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the disclosure.

Claims (17)

1. The flexible circuit board is applied to a display module and is characterized by at least comprising a first area and a second area, wherein the thickness of the second area is smaller than that of the first area.

2. The flexible wiring board of claim 1, wherein the number of the second regions is two, the first region is disposed between the two second regions, one of the second regions is electrically connected to the display panel, and the other of the second regions is capable of abutting against a battery.

3. The flexible wiring board of claim 1 or 2, wherein the first region is provided with a mounting area for mounting a fingerprint identification module.

4. The flexible wiring board of claim 3, further comprising a via disposed between the first region and the second region, the via surrounding a portion of the mounting region.

5. The flexible wiring board of claim 4, wherein at least one of the first region and the second region is provided with a transition structure, the transition structure is inclined from the direction of the first region to the direction of the second region, and the transition structure is arranged along the width direction of the flexible wiring board and is abutted with one end of the through hole.

6. The flexible printed circuit according to claim 5, wherein the through hole is disposed in a middle portion of the flexible printed circuit in a width direction, and the number of the transition structures is at least two, and two of the transition structures are respectively abutted to two ends of the through hole.

7. The flexible wiring board of claim 1 or 2, wherein the first region and the second region are in smooth transition; or the first area and the second area are in smooth transition.

8. A display module, comprising: the flexible wiring board of any one of claims 1 to 7.

9. The display module assembly of claim 8, wherein the display module assembly further comprises:

the flexible circuit board comprises a substrate, a flexible circuit board and a circuit board, wherein the substrate comprises a front surface and a back surface which are oppositely arranged, and the flexible circuit board is arranged on the back surface;

the display panel comprises a display part, a bending part and a connecting part electrically connected with the flexible circuit board, the display part is arranged on the front surface, the connecting part is arranged on the back surface, and the bending part is connected between the display part and the connecting part so as to enable the display part to be electrically connected with the connecting part through the bending part; and

a fingerprint identification module, the fingerprint identification module set up in on the first region, and towards the display panel sets up.

10. The display module of claim 9, wherein the through hole of the flexible circuit board surrounds a portion of the fingerprint identification module.

11. The display module assembly according to claim 9, further comprising at least two buffer members disposed on a side of the flexible printed circuit board away from the substrate, the at least two buffer members being spaced apart along a periphery of the fingerprint identification module.

12. The display module of claim 9, further comprising a sealing layer sandwiched between the first region and the substrate, the sealing layer configured to surround at least a portion of the fingerprint identification module.

13. The display module assembly of claim 9, wherein the fingerprint identification module is fixedly disposed in the first region and disposed between the back surface of the substrate and the flexible circuit board;

or the flexible circuit board comprises a mounting through hole, the mounting through hole is formed in the first area, and the fingerprint identification module penetrates through the mounting through hole and is arranged between the back face of the substrate and the flexible circuit board.

14. The display module of any one of claims 9 to 13, wherein the fingerprint recognition module comprises a recognition portion disposed toward the display panel, the substrate is provided with a first transparent region disposed opposite to the recognition portion, the display panel is provided with a second transparent region disposed opposite to the recognition portion, and the second transparent region is disposed opposite to the first transparent region.

15. The display module according to claim 14, wherein the second transparent area is provided with a light emitting unit for emitting light when the fingerprint identification module is activated, and the flexible circuit board can control the light emitting unit to be turned on or off;

the display panel comprises a display circuit, the flexible circuit board is used for controlling the display circuit to display images, and when the display circuit displays the images, the flexible circuit board controls the light-emitting unit to be closed; when the display circuit does not display images, the flexible circuit board can open the light-emitting unit when the fingerprint identification module is started, and close the light-emitting unit when the fingerprint identification module is closed.

16. An electronic device comprising a housing assembly, a control module and the display module of any one of claims 8 to 15, wherein the display module is disposed on the housing assembly, and the flexible circuit board is electrically connected to the control module.

17. The electronic device of claim 16, further comprising a battery, a portion of the battery abutting the second region.

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