CN211720577U

CN211720577U - Screen module and electronic equipment

Info

Publication number: CN211720577U
Application number: CN202020695985.5U
Authority: CN
Inventors: 曾伦
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-10-20
Anticipated expiration: 2030-04-29

Abstract

The present disclosure relates to a screen module and electronic equipment, the screen module includes: the screen sounding assembly comprises a sounding device and a pressure dividing sheet. When at least part of the first surface of the pressing sheet is matched with the bent part of the screen main body, the assembling plane on the second surface is not influenced by the bent shape of the screen main body, so that a flat assembling surface is provided for the sound generating device. Through the structural improvement to the preforming, promoted the flexion complex reliability of sound generating mechanism with the screen main part, be convenient for contain the electronic equipment's of curved surface screen, flexible full screen outward appearance design and the inner space optimal distribution, provide reliable structural basis for the development and the application of curved surface screen electronic equipment, flexible full screen electronic equipment.

Description

Screen module and electronic equipment

Technical Field

The present disclosure relates to the field of electronic technologies, and in particular, to a screen module and an electronic device.

Background

In the related art, electronic devices such as mobile phones generally include a screen module, and the application of screen sound generation technology increases the display ratio of the screen module. However, the screen sound generating device in the related art needs to be matched with the plane area of the screen to realize the installation and sound generating functions, and when the screen module is gradually developed to the curved display fields of the multi-curved screen, the flexible full-screen and the like, the matching scheme of the screen sound generating device and the curved screen is limited, and the development and the application of the multi-curved screen and the flexible full-screen are limited.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screen module and electronic equipment to promote the cooperation reliability of screen sound generating mechanism and curved surface screen.

According to a first aspect of the present disclosure, a screen module is provided, which includes a screen main body and a screen sounding component;

the screen body includes a curved portion;

the screen sounding assembly comprises a sounding device and a pressure dividing sheet; the pressing piece comprises a first face and a second face, and at least part of the first face is adapted to the bent part; the second face includes the equipment plane, sound generating mechanism set up in the equipment plane.

Optionally, the pressure dividing sheet includes a pressure dividing portion and a protruding portion, and the pressure dividing portion includes an upper surface of the pressure dividing portion and a lower surface of the pressure dividing portion which are oppositely arranged; at least part of the lower surface of the partial pressure part is adapted to the bending part, the bulge part protrudes out of the upper surface of the partial pressure part, and the assembling plane is arranged on the bulge part.

Optionally, the pressure dividing plate further includes a concave portion, the concave portion is located on one side of the pressure dividing plate, which faces away from the protruding portion, and the concave portion corresponds to the protruding portion.

Optionally, the height difference range of any two points on the lower surface of the pressure dividing part in the thickness direction of the screen module is 0.05mm-1 mm.

Optionally, the screen sounding assembly further comprises a first adhesive layer and a glue filling layer; the first bonding layer is arranged on the screen main body, and the lower surface of the partial pressure part is in bonding fit with the first bonding layer; the glue filling layer is filled in the concave part, and the glue filling layer is respectively bonded and matched with the concave part and the screen main body.

Optionally, the pressing portion and the protrusion are integrally formed, and the pressing portion extends from at least part of the edge of the protrusion.

Optionally, the screen sounding subassembly still includes the second adhesive linkage, the second adhesive linkage sets up on the equipment plane, sound generating mechanism with the second adhesive linkage bonding cooperation.

Optionally, the screen body further includes a planar portion, and at least a portion of the first surface is fitted to the planar portion.

Optionally, the sound generating device includes at least one of a piezoelectric ceramic, an integrated actuator, and a magnetic suspension actuator.

According to a second aspect of the present disclosure, an electronic device is provided, which includes a device main body and the screen module, wherein the screen module is assembled to the device main body.

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

the screen main part of this disclosure includes the flexion, and screen sound production subassembly's partial pressure piece includes first face and second face, and wherein, be equipped with the equipment plane on the second face of partial pressure piece, when the flexion of at least partial first face adaptation in screen main part, the equipment plane on the second face does not receive the crooked form influence of screen main part, for sound generating mechanism provides smooth equipment face. Through the structural improvement to the preforming, promoted the flexion complex reliability of sound generating mechanism with the screen main part, be convenient for contain the electronic equipment's of curved surface screen, flexible full screen outward appearance design and the inner space optimal distribution, provide reliable structural basis for the development and the application of curved surface screen electronic equipment, flexible full screen electronic equipment.

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

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic cross-sectional structure diagram of a screen module in an exemplary embodiment of the disclosure;

FIG. 2 is a schematic cross-sectional view illustrating a screen module according to another exemplary embodiment of the disclosure;

fig. 3 is a schematic perspective view of a screen module according to an exemplary embodiment of the disclosure;

FIG. 4 is a schematic cross-sectional view illustrating a screen module according to another exemplary embodiment of the disclosure;

fig. 5 is a schematic cross-sectional structure diagram of an electronic device in an exemplary embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic cross-sectional structure diagram of a screen module in an exemplary embodiment of the disclosure; fig. 2 is a schematic cross-sectional structure view of a screen module according to another exemplary embodiment of the disclosure. As shown in fig. 1 and 2, the screen module 1 includes a screen body 11 and a screen sounding component 12, and the screen body 11 includes a bending portion 111. The screen sound generating assembly 12 includes a sound generating device 121 and a partial pressure plate 122, the partial pressure plate 122 includes a first surface 1221 and a second surface 1222, at least a portion of the first surface 1221 is adapted to the bending portion 111, the second surface 1222 includes an assembling plane 1222a, and the sound generating device 121 is disposed on the assembling plane 1222 a.

It should be noted that the first face 1221 and the second face 1222 are surfaces of the pressing piece 122, and the first face 1221 and the second face 1222 may be adjacent surfaces on the pressing piece 122 as shown in fig. 1, may be oppositely disposed surfaces on the pressing piece 122, or may be any two different surfaces on the pressing piece 122, which is not limited by the present disclosure.

The principle of screen sound production is that the screen main body 11 is driven to vibrate and produce sound through the sound production device 121, and the pressure divider 122 is arranged between the sound production device 121 and the screen main body 11 and used for transmitting the vibration of the sound production device 121 to the screen main body 11. On one hand, the shape and size of the pressure divider 122 can increase the fitting area of the pressure divider 122 and the screen body 11, thereby extending the sound emission path of the screen body 11. On the other hand, the pressure applied to the screen body 11 by the sound generating device 121 can be equalized by the engagement of the pressure-dividing plate 122 with the screen body 11. The shape of the pressing sheet 122 may be rectangular, circular, oval, irregular, etc. according to the specific screen sounding requirement, which is not limited by the present disclosure. The pressing piece 122 may be a steel piece to improve the strength and sound transmission effect of the pressing piece 122.

In the above-described embodiment, the fitting of at least part of the first face 1221 into the curved portion 111 of the screen body 11 may refer to: parameters such as the bending degree and the bending direction of at least a part of the first surface 1221 are the same as or similar to those of the bending portion 111, so that the part of the first surface 1221 can be reliably attached to the bending portion 111 during fitting, and the fitting clearance generated by structural differences is prevented from affecting the fitting reliability between the pressing piece 122 and the bending portion 111.

When at least a portion of the first face 1221 is fitted to the curved portion 111 of the screen body 11, the assembly plane 1222a on the second face 1222 is not affected by the curved configuration of the screen body 11, providing a flat assembly face for the sound emitting device 121. Through the structural improvement to preforming 122, the reliability of the cooperation of bending portion 111 of sound generating mechanism 121 and screen main part 11 has been promoted, and the electronic equipment 2's that contains curved surface screen, flexible full-face screen appearance design and the inner space optimal distribution of being convenient for provide reliable structural basis for the development and the application of curved surface screen electronic equipment 2, flexible full-face screen electronic equipment 2.

The screen main body 11 can be a flexible full-screen or a multi-curved-surface screen, and the screen sounding position can be set in any area of the screen main body 11 according to specific screen sounding requirements. In some embodiments, the screen body 11 includes a flat portion 112 and a curved portion 111, and the screen sound emission positions can be set on the flat portion 112 and the curved portion 111 of the screen according to specific screen sound emission requirements. At least a part of the first face 1221 is fitted to the flat portion 112, at least a part of the first face 1221 is fitted to the curved portion 111, and the first face 1221 includes a flat area fitted to the flat portion 112 and a curved area fitted to the curved portion 111, so that the partial pressure portion can be reliably attached to the screen body 11 by structural improvement of the first face 1221 without affecting the flat structure of the assembly plane 1222 a.

In other embodiments, the screen sounding position may be set at the curved portion 111 of the screen main body 11 according to specific screen sounding requirements, the pressing piece 122 may be only fitted to the curved portion 111 of the screen main body 11, the first surface 1221 of the pressing piece 122 is a curved surface, and the curvature and the bending direction of the curved surface are the same as or similar to those of the curved portion 111 of the screen main body 11, so that when the first surface 1221 of the pressing piece 122 is fitted to the curved portion, the pressing piece can be reliably attached to the curved portion 111.

In some embodiments, as shown in fig. 1, the first face 1221 of the pressing piece 122 includes a curved surface area adapted to the curved portion 111, the second face 1222 is an assembly plane 1222a, and the sound emitting device 121 is disposed on the assembly plane 1222 a. Directly using the second surface 1222 of the pressure divider 122 as the assembly plane 1222a not only simplifies the structural arrangement of the pressure divider 122, but also increases the area of the assembly plane 1222a, thereby improving the flexibility of the arrangement position of the sound generating device 121 on the assembly plane 1222 a. The sound vibration of the sound generating device 121 can be transmitted to the second surface 1222 of the pressure dividing plate 122 through the first surface 1221 of the pressure dividing plate 122, and then transmitted to the screen main body 11, the transmission path is short, the transmission effect is good, and the sound generating effect of the screen main body 11 is improved.

In the above embodiment, the screen sounding assembly 12 may further include the first adhesive layer 13, the first adhesive layer 13 is disposed on the screen main body 11, and the first surface 1221 of the partial pressure sheet 122 is in adhesive fit with the first adhesive layer 13. In the assembling process of the screen module 1, the first adhesive layer 13 may be first disposed in the corresponding area of the sound generating function of the screen main body 11. Taking the screen module 1 applied to the mobile phone as an example, the corresponding area of the sound production function of the screen main body 11 may be a bar-shaped area corresponding to the ear of the user when the mobile phone makes and receives calls. Then, the first surface 1221 of the pressure-separation sheet 122 is fixed to the screen main body 11 via the first adhesive layer 13. Further, the screen sound generating assembly 12 further includes a second adhesive layer 14, the second adhesive layer 14 is disposed on the assembling plane 1222a, and the sound generating device 121 is in adhesive fit with the second adhesive layer 14. The shape and size of the second adhesive layer 14 may be the same as those of the assembly mating surface of the sound generating device 121, or the second adhesive layer 14 may also be an annular structure matching the shape and size of the edge area of the sound generating device, and the shape and size of the second adhesive layer 14 are not limited by this disclosure.

The first adhesive layer 13 and the second adhesive layer 14 may be double-sided tapes. The assembly scheme of the first adhesive layer 13 and the second adhesive layer 14 to the screen sounding assembly 12 enables the sounding device 121 to be matched with the screen main body 11 reliably, stably and conveniently to detach.

In other embodiments, as shown in fig. 2 and 3, the screen body 11 may include a flat portion 112 and a curved portion 111. The partial pressure plate 122 includes a partial pressure portion 1223 and a projection portion 1224, the partial pressure portion 1223 includes a partial pressure portion upper surface 1223a and a partial pressure portion lower surface 1223b that are disposed opposite to each other, the partial pressure portion lower surface 1223b is fitted to the curved portion 111, the partial pressure portion lower surface 1223b is fitted to the flat portion 112, the projection portion 1224 protrudes from the partial pressure portion upper surface 1223a, the assembly plane 1222a is disposed on the projection portion 1224, and the sound-generating device 121 is disposed on the assembly plane 1222 a. Since the pressing piece 122 is to be fitted to both the curved portion 111 of the screen body 11 and the sound emitting device 121, the pressing piece 122 is provided with the pressing portion 1223 and the projection portion 1224 so that a part of the pressing portion lower surface 1223b is fitted to the curved portion 111 and a part of the pressing portion lower surface 1223b is fitted to the flat portion 112, and the assembly plane 1222a on the projection portion 1224 is fitted to the sound emitting device 121, reducing the structural interference between the projection portion 1224 and the pressing portion 1223.

It should be noted that, the arrangement of the upper surface 1223a of the pressure dividing portion and the lower surface 1223b of the pressure dividing portion may refer to: the pressure dividing portion lower surface 1223b faces the screen main body 11, and the pressure dividing portion upper surface 1223a faces away from the screen main body 11. The partial pressure part lower surface 1223b may include a curved surface area having the same or similar curvature and bending direction as the curved portion 111 of the screen body 11. When the partial pressure portion lower surface 1223b is fitted to the bend, it can be reliably attached to the bent portion 111. The size of the assembly plane 1222a may match the size of the sound emitting device 121, and the projection area of the projection 1224 on the screen body 11 may be equal to or slightly larger than the area of the assembly plane 1222a, so as to improve the structural utilization of the projection 1224.

In the above embodiment, the lower surface 1223b of the pressure dividing portion is a surface that fits the screen body 11, and the height difference d between any two points on the lower surface 1223b of the pressure dividing portion in the thickness direction of the screen module 1 is in the range of 0.05mm to 1mm, so as to adapt to the height change of the curved surface of the curved portion 111 of the screen body 11 in the thickness direction of the screen module 1. The screen body 11 may include a flat portion 112 and a curved portion 111, and the thickness direction of the screen module 1 may be a direction perpendicular to the flat portion 112, i.e., a direction indicated by a dotted arrow in fig. 2. Alternatively, when the screen body 11 includes only the curved portion 111, the thickness direction of the screen module 1 may be perpendicular to the tangential direction of any point on the curved portion 111. For example, the height difference d between the two points A, B in the thickness direction of the screen module in FIG. 2 ranges from 0.05mm to 1 mm.

In one embodiment, the pressing plate 122 further includes a recess 1225, the recess 1225 is located on a side of the pressing plate 122 opposite to the protrusion 1224, and the recess 1225 corresponds to the protrusion 1224, so that the entire pressing plate 122 forms a zigzag structure. The recess 1225 may be a groove provided on the pressure-dividing plate 122. When the partial pressure portion 1223 deforms in cooperation with the curved portion 111, the side wall of the recess 1225 absorbs the deformation of the partial pressure portion 1223 by its own spring, and the deformation is prevented from interfering with the structure of the assembly plane 1222 a. The recess 1225 also reduces the overall material usage of the tablet 122, reducing the processing cost of the tablet 122.

In the above embodiment, the screen sounding assembly 12 may further include the first adhesive layer 13 and the adhesive filling layer 15, the first adhesive layer 13 is disposed on the screen main body 11, the partial pressure portion lower surface 1223b is in adhesive fit with the first adhesive layer 13, and the adhesive filling layer 15 is filled in the recess 1225. In one embodiment, the first adhesive layer 13 is provided with a relief region corresponding to the position of the recess, and the screen main body 11 is exposed from the relief region without an adhesive structure in the relief region. The sealant layer 15 is filled in the recess 1225, and is respectively bonded and fitted to the recess 1225 and the screen main body 11 exposed from the escape area. In another embodiment, the first adhesive layer 13 may correspond to the position of the entire projection area of the partial pressure sheet 122 on the screen body 11, and the underfill layer 15 is in adhesive fit with the recess 1225 and the first adhesive layer 13 when being filled in the recess 1225. The filling layer can form a solid filling without gaps between the screen body 11 and the recesses 1225, avoiding the damping of the vibration performance of the sound emitting device 121 and the acoustic performance of the screen body 11 due to the cavity effect formed by the recesses 1225 between the protrusions 1224 and the screen body 11.

In the assembling process of the screen module 1, the first adhesive layer 13 may be first disposed in the corresponding area of the sound generating function of the screen main body 11. Taking the screen module 1 applied to the mobile phone as an example, the corresponding area of the sound production function of the screen main body 11 may be a bar-shaped area corresponding to the ear of the user when the mobile phone makes and receives calls. Then, glue is applied to the first adhesive layer 13 in the area corresponding to the recess 1225 of the partial pressure sheet 122, and the partial pressure sheet 122 with the recess 1225 is fixed to the screen body 11 through the glue and the first adhesive layer 13, and the glue is solidified to form the filling layer located in the recess 1225. The filling layer formed by the glue has a good filling effect on the recesses 1225, and prevents gaps remaining in the recesses 1225 from forming a cavity effect between the protrusions 1224 and the screen body 11.

Further, the screen sound generating assembly 12 further includes a second adhesive layer 14, the second adhesive layer 14 is disposed on the assembling plane 1222a, and the sound generating device 121 is in adhesive fit with the second adhesive layer 14, so as to realize reliable fixing of the sound generating device 121. The shape and size of the second adhesive layer 14 may be the same as those of the assembly mating surface of the sound generating device 121, or the second adhesive layer 14 may also be an annular structure matching the shape and size of the edge area of the sound generating device, and the shape and size of the second adhesive layer 14 are not limited by this disclosure.

Note that the first adhesive layer 13 and the second adhesive layer 14 may be double-sided tapes. The assembly scheme of the first adhesive layer 13, the second adhesive layer 14 and the glue filling layer 15 to the screen sounding assembly 12 is adopted, so that the sounding device 121 is matched with the screen main body 11 reliably, stably and conveniently to detach.

In the above embodiment, as shown in fig. 3, the partial pressure portion 1223 may be integrally formed with the projection 1224 to provide a good partial pressure effect and sound vibration propagation effect. Further, the partial pressure portion 1223 may be formed extending from at least a part of the edge of the projection 1224. For example, in the embodiment shown in fig. 3, the partial pressure portions 1223 are formed extending from the entire circumferential edge of the projection 1224, and the partial pressure portions 1223 are formed to be distributed around the structure of the projection 1224 to form a sound-emitting vibration propagation path and a partial pressure region in the circumferential direction of the projection 1224. Since the assembly plane 1222a is disposed on the projection 1224 and the sound generating device 121 is assembled on the assembly plane 1222a, the sound generating vibration of the sound generating device 121 is transmitted from the assembly plane 1222a of the projection 1224, and the partial pressure portion 1223 is disposed around the projection 1224, so as to provide a better sound generating vibration transmission effect and partial pressure effect for the partial pressure plate 122.

In another embodiment, as shown in fig. 4, the projection 1224 may be directly disposed on the pressure dividing portion 1223, that is, the pressure dividing plate 122 forms a solid embossed structure, and the pressure dividing portion 1223 is located between the projection 1224 and the screen body 11. At least part of the lower surface 1223b of the partial pressure portion is adapted to the bending portion 111 of the screen body 11, the assembling plane 1222a is disposed on the projection portion 1224, when the sound generating device 121 is assembled on the assembling plane 1222a, the sound generating vibration generated by the sound generating device 121 can be transmitted to the screen body 11 through the projection portion 1224 and the partial pressure portion 1223, and the transmission paths of the sound generating vibration are all solid, so that the screen body 11 has a good sound generating effect.

It should be noted that there may be one or more sound generating devices 121, when the screen sound generating assembly 12 includes one sound generating device 121, the sound generating device 121 may be one of piezoelectric ceramics, an integrated actuator, and a magnetic suspension actuator, and when the screen sound generating assembly 12 includes a plurality of sound generating devices 121, the sound generating device 121 may be at least one of piezoelectric ceramics, an integrated actuator, and a magnetic suspension actuator.

The present disclosure further provides an electronic device, as shown in fig. 5, the electronic device 2 includes a device main body 21 and the screen module 1, and the screen module 1 is assembled to the device main body 21.

It should be noted that the electronic device 2 may be a mobile phone, a tablet computer, a vehicle-mounted terminal, a sound box, an earphone, a medical terminal, or the like, and the disclosure does not limit this. Taking the electronic device 2 as an example of a mobile phone, the device of the mobile phone includes a middle frame 211, the middle frame 211 is located below the screen body 11 and the pressure divider 122, a through hole 2111 may be formed on the middle frame 211, and the sound generating device 121 is assembled on an assembly plane 1222a of the pressure divider 122 through the through hole 2111.

In the above embodiment, the screen body 11 includes the curved portion 111, and the partial pressure plate 122 of the screen sound generating assembly 12 includes the first face 1221 and the second face 1222, wherein the second face 1222a of the partial pressure plate 122 is provided with an assembly plane 1222a, and when at least a portion of the first face 1221 is fitted to the curved portion 111 of the screen body 11, the assembly plane 1222a of the second face 1222 is not affected by the curved configuration of the screen body 11, so as to provide a flat assembly plane for the sound generating device 121. Through the structural improvement to preforming 122, the reliability of the cooperation of bending portion 111 of sound generating mechanism 121 and screen main part 11 has been promoted, and the electronic equipment 2's that contains curved surface screen, flexible full-face screen appearance design and the inner space optimal distribution of being convenient for provide reliable structural basis for the development and the application of curved surface screen electronic equipment 2, flexible full-face screen electronic equipment 2.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A screen module is characterized by comprising a screen main body and a screen sounding component;

the screen body includes a curved portion;

2. The screen module as recited in claim 1, wherein the pressure dividing plate comprises a pressure dividing portion and a protrusion, the pressure dividing portion comprises an upper surface of the pressure dividing portion and a lower surface of the pressure dividing portion which are oppositely arranged; at least part of the lower surface of the partial pressure part is adapted to the bending part, the bulge part protrudes out of the upper surface of the partial pressure part, and the assembling plane is arranged on the bulge part.

3. A screen module as recited in claim 2, wherein the pressure divider further comprises a recess on a side of the pressure divider opposite the protrusions, the recess corresponding to the protrusions.

4. The screen module according to claim 3, wherein the difference in height between any two points on the lower surface of the pressure dividing part in the thickness direction of the screen module is in the range of 0.05mm to 1 mm.

5. The screen module of claim 3, wherein the screen sound generating assembly further comprises a first adhesive layer and a glue filling layer; the first bonding layer is arranged on the screen main body, and the lower surface of the partial pressure part is in bonding fit with the first bonding layer; the glue filling layer is filled in the concave part, and the glue filling layer is respectively bonded and matched with the concave part and the screen main body.

6. A screen module as recited in claim 2, wherein the press portion is integrally formed with the protrusion, the press portion extending from at least a portion of an edge of the protrusion.

7. The screen module of claim 1, wherein the screen sound assembly further comprises a second adhesive layer disposed on the assembly plane, the sound generator being adhesively engaged with the second adhesive layer.

8. A screen module as recited in claim 1, wherein the screen body further comprises a planar portion, at least a portion of the first surface being coupled to the planar portion.

9. The screen module of claim 1, wherein the sound generator comprises at least one of a piezoelectric ceramic, an integral actuator, and a magnetic levitation actuator.

10. An electronic apparatus, comprising an apparatus main body and the screen module according to any one of claims 1 to 9, the screen module being assembled to the apparatus main body.