CN110445890A - Foldable screen assembly and electronic device - Google Patents

Abstract

The present invention relates to a foldable screen assembly and an electronic device. The foldable electronic device has a folded state and an unfolded state, and includes: a rotating shaft assembly; a supporting assembly, including a first supporting plate and a second supporting plate connected to the rotating shaft assembly, and the first supporting plate and the second supporting plate can be relative to the rotating shaft assembly. Rotate to switch between the folded state and the unfolded state; the flexible display screen includes a first end and a second end that are oppositely arranged and located on both sides of the rotating shaft assembly, the first end is fixedly connected with the first support plate, the The second end is elastically connected with the second support plate; and the shell assembly includes a first shell and a second shell, the first shell is fixedly connected with the first support plate, and the second shell is fixedly connected with the second support plate. By elastically connecting the flexible display screen and the support plate, the above-mentioned foldable electronic device can avoid the phenomenon of unevenness of the flexible display screen during the unfolding and folding process.

Description

Foldable screen assembly and electronic device

technical field

The present invention relates to the technical field of electronic equipment, and in particular, to a foldable screen assembly and a foldable electronic device.

Background technique

The flexible display has the ability to bend, making it possible for smart electronic devices equipped with flexible displays, such as smartphones, to switch between folded and unfolded states. In some existing designs, when the electronic device is switched between the folded and unfolded states, some areas of the flexible display screen are prone to depression or unevenness, which results in poor display effect.

SUMMARY OF THE INVENTION

A technical problem solved by an embodiment of the present invention is how to keep the flexible display screen flat during the process of switching between different states of the foldable screen assembly and the electronic device.

A foldable electronic device has a folded state and an unfolded state, comprising:

shaft assembly;

a support assembly, comprising a first support plate and a second support plate connected to the shaft assembly, and the first support plate and the second support plate can be rotated relative to the shaft assembly to switch between a folded state and an unfolded state;

a flexible display screen, comprising a first end and a second end opposite to each other and located on both sides of the rotating shaft assembly, the first end is fixedly connected with the first support plate, and the second end is elastically connected with the second support plate; and

The shell assembly includes a first shell and a second shell, the first shell is fixedly connected with the first support plate, and the second shell is fixedly connected with the second support plate.

A foldable screen component has a folded state and an unfolded state, including:

shaft assembly;

a support assembly, comprising a first support plate and a second support plate connected to the shaft assembly, and the first support plate and the second support plate can follow the rotation of the shaft assembly to switch between the folded state and the unfolded state; and

The flexible display screen includes a first end and a second end which are oppositely arranged and located on both sides of the rotating shaft assembly, the first end is fixedly connected with the first support plate, and the second end is elastically connected with the second support plate.

One technical effect of an embodiment of the present invention is that by elastically connecting the flexible display screen and the second support plate, the flexible display screen is subjected to elastic tension, which can avoid unevenness of the flexible display screen during unfolding and folding.

Description of drawings

FIG. 1 is a schematic three-dimensional structural diagram of a foldable electronic device in an unfolded state according to an embodiment of the present invention.

FIG. 2 is a schematic top view of the foldable electronic device shown in FIG. 1 .

FIG. 3 is a schematic cross-sectional view taken along line II-II in FIG. 2 .

FIG. 4 is a schematic cross-sectional view taken along line III-III in FIG. 3 .

FIG. 5 is a schematic three-dimensional structural diagram of a foldable electronic device from another perspective according to an embodiment of the present invention.

FIG. 6 is a schematic structural diagram of the foldable electronic device shown in FIG. 5 after removing the shell assembly.

FIG. 7 is a schematic three-dimensional structural diagram of a foldable electronic device in a folded state according to an embodiment of the present invention.

FIG. 8 is a schematic top view of the foldable electronic device shown in FIG. 7 .

FIG. 9 is a schematic cross-sectional view taken along line VIII-VIII in FIG. 8 .

FIG. 10 is a schematic cross-sectional view taken along line IX-IX in FIG. 9 .

Detailed ways

Electronic devices provided in embodiments of the present invention include, but are not limited to, are configured to be connected via wired lines (eg, via a public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, direct cable connection, and/or otherwise a data connection/network) and/or via (eg, for cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters, and/or another electronic device ) A device that receives/transmits communication signals over a wireless interface. Examples of electronic devices provided by the present invention include, but are not limited to, satellite or cellular telephones; Personal Communication System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/ PDAs with intranet access, web browsers, memo pads, calendars and/or global positioning system (GPS) receivers; and conventional laptop and/or palm receivers or other electronic devices including radiotelephone transceivers.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , a foldable electronic device provided by an embodiment of the present invention includes a foldable screen assembly and a case assembly 40 . The foldable screen assembly includes a rotating shaft assembly 10 , a support assembly 20 and a flexible display screen 30 . The support assembly 20 is connected with the rotating shaft assembly 10 and can rotate with the rotating shaft assembly 10 . The flexible display screen 30 is carried by the support assembly 20 and the shaft assembly 10 , and the shell assembly 40 is fixedly connected with the support assembly 20 . As shown in FIG. 1 , the foldable electronic device is in an unfolded state, and the support assembly 20 and the hinge assembly 10 are located on the same horizontal plane, so that the flexible display screen 30 is unfolded and presents a larger display area on the same plane. When the electronic device needs to be folded, the shell assembly 40 and the support assembly 20 can be rotated around the shaft assembly 10 to the folded state as shown in FIG. 7 to fold the flexible display screen 30 in half. At this time, the flexible display screen 30 is on the same plane. The display area is smaller than the display area in the expanded state.

As shown in FIG. 3 , the rotating shaft assembly 10 includes a hinge structure, such as a three-axis hinge structure. When in the unfolded state, the axes of the three shafts of the rotating shaft assembly 10 are located in the same plane. As shown in FIG. 9 , when in the folded state, the relative positions of the three shafts of the rotating shaft assembly 10 change, wherein the shafts located on both sides rotate toward each other around the middle axis. From the perspective shown in FIG. 9 , the shafts located at The shafts on both sides are respectively located above and below the middle shaft, and the shafts on the two sides are on a vertical plane, and the cross-section connecting lines of the axes of the three shafts form an isosceles triangle.

In other embodiments, the rotating shaft assembly 10 may be a double-axis hinge structure, or a multi-axis hinge structure, and may also be other structures capable of realizing rotation.

The support assembly 20 includes a first support plate 21 and a second support plate 23 . Both the first support plate 21 and the second support plate 23 are connected to the shaft assembly 10 , wherein the first support plate 21 can be connected to one shaft on one side of the shaft assembly 10 , and the second support plate 23 can be connected to another shaft of the shaft assembly 10 . One shaft connection on one side. The first support plate 21 and the second support plate 23 can rotate together with the corresponding shafts in the rotating shaft assembly 10 , so that the electronic device can be switched between the folded state and the unfolded state. Specifically, the first support plate 21 together with the shaft connected thereto can rotate around the middle shaft in the shaft assembly 10 , and the second support plate 21 together with the shaft connected thereto can also rotate around the middle shaft in the shaft assembly 10 turn.

The first support plate 21 includes a front surface 211 and a back surface 212 , and a side surface (not marked) between the front surface 211 and the back surface 212 . The second support plate 23 includes a front surface 231 and a back surface 232 , and a side surface between the front surface 231 and the back surface 232 . The front side 211 ( 231 ) is disposed opposite to the back side 212 ( 232 ), and the front side 211 ( 231 ) refers to the surface facing the display area of the flexible display screen 30 . As shown in FIG. 3 , in the unfolded state, the front surfaces 211 and 231 of the first support plate 21 and the second support plate 23 are flush with the upper tangent of the rotating shaft assembly 10 for better supporting the flexible display screen 30 , so that the When the flexible display screen 30 is unfolded, the display content can be presented in a relatively flat state.

As shown in FIG. 1 , components such as a first camera module 60 may also be disposed on the front surface 211 of the first support plate 21 . As shown in FIG. 5 and FIG. 6 , the backs 212 and 232 of the first support plate 21 and the second support plate 23 may also be provided with recesses for accommodating components such as the battery 70 , the main board 80 , and the second camera module 90 .

The flexible display screen 30 can use an OLED (Organic Light-Emitting Diode, organic electric laser display) screen for displaying information, and the OLED screen can be an AMOLED (Active Matrix Organic Light Emitting Diode, active matrix organic light-emitting diode) screen or a Super AMOLED (Super Active Matrix Organic Light Emitting Diode, Super Active Drive Organic Light Emitting Diode) screen or Super AMOLED Plus (Super Active Matrix Organic Light Emitting Diode Plus, Magic Screen) screen.

The flexible display screen 30 includes a first end 31 and a second end 33 which are disposed opposite to each other. The first end 31 and the second end 33 are respectively located on two sides of the rotating shaft assembly 10 . The first end 31 is fixedly connected to the first support plate 21 . The way of fixed connection can adopt various ways such as bonding, riveting, welding and so on. When the adhesive is used for fixing, the glue can be directly arranged between the flexible display screen 30 and the first support plate 21 . When fixing by riveting, welding, etc., a suitable connector can be provided on the first end 31 of the flexible display screen 30, and then riveting, welding and other operations are performed with the first support plate 21 through the connector. The second end 33 is elastically connected with the second support plate 23 . The elastic connection between the flexible display screen 30 and the second support plate 23 can enable the flexible display screen 30 to be elastically tensioned during the process of switching between the folded state and the unfolded state, so that the flexible display screen 30 will not be partially depressed during the state switching process. , uneven phenomenon. In addition, due to the difference in length between the side surface where the flexible display screen 30 is located and the side surface where the shell assembly 40 is located during the switching between the folding and unfolding states of the foldable electronic device, the elastic connection of the flexible display screen 30 can satisfy the Variation of this length difference.

In one embodiment, the elastic tension between the second end 33 and the second support plate 23 is obtained by disposing the elastic member 50 between the second end 33 and the second support plate 23 . As shown in FIG. 4 and FIG. 6 , in one embodiment, the elastic member 50 is in the shape of a strip, such as an elongated member made of steel. Both ends of the elastic member 50 are connected to the second end 33 , and the middle portion of the elastic member 50 is connected to the second support plate 23 . For example, a fixing column 235 may be provided on the second support plate 23 for positioning the elastic member 50 . Specifically, the middle part of the elastic member 50 can be arranged on one side of the fixed column 235 , and the two ends of the elastic member 50 are connected to the second end 33 of the flexible display screen 30 and are directed from the flexible display screen 30 to the fixed column 235 . The other side pulls the elastic member 50 so that the elastic member 50 is elastically deformed when switching between the folded state and the unfolded state of the electronic device. As shown in FIG. 4, in the unfolded state, the elastic deformation amount of the elastic member 50 is L1. As shown in FIG. 10 , in the folded state, the elastic deformation amount of the elastic member 50 is L2, where L2 is greater than L1. In one embodiment, L1 is greater than zero, that is to say, the elastic member 50 also has a certain amount of deformation in the unfolded state, so that the flexible display screen 30 is under tension, so the flexible display screen 30 will not collapse or sag. In the folded state, the elastic deformation amount L2 of the elastic member 50 is larger, so that the flexible display screen 30 can be pulled evenly at the bending position to wrap the rotating shaft assembly 10 flatly, so as to avoid bending around the rotating shaft assembly 10 . produce depressions.

Further, a clamping member 35 can also be provided on the second end 33 of the flexible display screen 30, and a plurality of fixing bolts 352 can be arranged to pass through the clamping member 35 and the second end 33 of the flexible display screen 30, thereby The clip 35 is fitted on the second end 33 of the flexible display screen 30 . The clamping member 35 is provided with a connecting end 351 which is matched with the elastic member 50 . The connecting end 351 is provided with a matching hole 353 , and both ends of the elastic member 50 can be inserted into the matching hole 353 .

The flexible display screen 30 further includes a display area 32 located between the first end 31 and the second end 33 . The display area 32 is located on the side where the front surfaces 211 and 231 of the first and second support plates 21 and 23 are located. In one embodiment, the area of the flexible display screen 30 exposed outside the casing assembly 40 is the display area 32 . Since the elastic member 50 is elastically connected with the flexible display screen 30 and the amount of elastic deformation generated when switching between the folded state and the unfolded state is different, the flexible display screen 30 is exposed to the area outside the case assembly 40 in the folded state and the unfolded state. The area is different, in other words, the area of the display area 32 of the flexible display screen 30 in the folded state and the unfolded state is different. 3 and 9 , less of the flexible display screen 30 is accommodated in the shell assembly 40 in the unfolded state, so the area of the display area 32 in the unfolded state is larger than that in the folded state.

As shown in FIG. 1 and FIG. 2 , a through hole 301 is formed on the display area 32 of the flexible display screen 30 , and the first camera module 60 is exposed from the through hole 301 . The first camera module 60 is exposed from the display area 32 in the flexible display screen 30, compared with arranging the cover plate at the edge of the flexible display screen 30 and disposing the first camera module 60 on the cover plate, It can be avoided that the cover plate occupies more area on the front surface of the support assembly 20, so that the area of the flexible display screen 30 for display is larger.

As shown in FIG. 1 and FIG. 3 , the shell assembly 40 includes a first shell 41 and a second shell 43 , wherein the first shell 41 is fixedly connected with the first support plate 21 , for example, by snap-fitting, screwing The fixed connection is realized by means of connection and so on. The second housing 43 is fixedly connected to the second support plate 23 , for example, the fixed connection can be achieved by means of snap connection, screw connection, or the like. The first shell 41 includes an inner surface 413 facing the first support plate 21 and an outer surface 415 facing away from the first support plate 21 , and the second shell 43 includes an inner surface 433 facing the second support plate 23 and facing away from the outer surface 435 of the second support plate 23 .

More specifically, the first housing 41 includes a first bottom plate 410 and three first side walls 411 extending from three edges of the first bottom plate 410 . The first bottom plate 410 is located where the back surface 212 of the first support plate 21 is located. The first side wall 411 is located on the side of the first support plate 21 , so that the first shell 41 surrounds the first support plate 21 . The second shell 43 includes a second bottom plate 430 and three second side walls 431 extending from three edges of the second bottom plate 430 . The second shell 43 is located on the side where the back surface 232 of the second support plate 23 is located. , the second side wall 431 is located on the side of the second support plate 23 , so that the second shell 43 surrounds the second support plate 23 . Edges of the first bottom plate 410 and the second bottom plate 430 not forming sidewalls are used for matching with the rotating shaft assembly 10 . As shown in FIG. 1 , when in the unfolded state, the first casing 41 and the second casing 43 together form an open box shape for accommodating the first support plate 21 , the second support plate 23 and the flexible display screen. 30 and other parts. As shown in FIGS. 7 , 8 and 9 , when in the folded state, the first bottom plate 410 of the first casing 41 and the second bottom plate 430 of the second casing 43 are stacked and located inside the electronic device, so that the The display area 32 of the flexible display screen 30 is located outside the electronic device. In actual use, the electronic device can be located in an intermediate state between the folded state and the unfolded state, that is, the first bottom plate 410 and the second bottom plate 430 are located at any angle between 0 degrees and 180 degrees.

As shown in FIG. 5 and FIG. 6 , an assembly hole 412 is formed on the first casing 41 , and the second camera module 90 on the second support plate 23 can protrude from the assembly hole 412 and be exposed on the first casing 41 on the outer surface 415. A receiving groove 432 is provided on the outer surface 435 of the second housing 43 . When the folding terminal is in the folded state, the second camera module 90 can be received in the receiving groove 432 . In one embodiment, the first camera module 60 , the second camera module 90 and the main board 80 are all disposed on the first support plate 21 , so as to simplify the wiring of the communication connection of the three. At the same time, the first end 31 of the flexible display screen 30 can be configured to be communicatively connected to the main board 80 .

As shown in FIG. 3 and FIG. 9 , in one embodiment, the second end 33 of the flexible display screen 30 is bent relative to the display area 32 and is located between the back surface 232 of the second support plate 23 and the second casing 43 . The fixing column 235 is disposed on the back surface 232 of the second support plate 23 . Correspondingly, the elastic member 50 is also located on the back surface 232 of the second support plate 23 and is connected between the second end 33 and the fixing post 235 .

Further, the first end 31 of the flexible display screen 30 is bent relative to the display area 32 and is located between the back surface 212 of the first support plate 21 and the first casing 41 .

Both ends of the flexible display screen 30 are bent and arranged around the back of the support assembly 20 , so that as much area as possible of the flexible display screen 30 can be fully utilized for displaying content, so as to increase the screen ratio of the electronic device. The side walls of the shell assembly 40 terminate at the sides of the support assembly 20 without extending to the front of the support assembly 20 . It can be understood that, in other embodiments, the side wall of the shell assembly 40 can be bent and extended to form a cover plate covering the front surface of the support assembly 20 , and the second end 33 of the flexible display screen 30 and the elastic member 50 are both It can be provided on the front of the support assembly 20 and covered by a cover plate.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims (19)

1. A foldable electronic device having a folded state and an unfolded state, characterized in that, comprising: shaft assembly; a support assembly, comprising a first support plate and a second support plate connected to the shaft assembly, and the first support plate and the second support plate can follow the rotation of the shaft assembly to switch between the folded state and the unfolded state; a flexible display screen, comprising a first end and a second end opposite to each other and located on both sides of the rotating shaft assembly, the first end is fixedly connected with the first support plate, and the second end is elastically connected with the second support plate; and The shell assembly includes a first shell and a second shell, the first shell is fixedly connected with the first support plate, and the second shell is fixedly connected with the second support plate. 2 . The foldable electronic device according to claim 1 , further comprising an elastic member connected between the second end and the second support plate, wherein the elastic deformation of the elastic member in the folded state is greater than that in the unfolded state. 3 . The amount of elastic deformation of the elastic element in the state. 3 . The foldable electronic device according to claim 2 , wherein a fixing column for positioning the elastic member is provided on the second support plate. 4 . 4 . The foldable electronic device according to claim 2 , wherein a clamping member is provided on the second end of the flexible display screen, and a connecting end matched with an elastic member is provided on the clamping member. 5 . 5 . The foldable electronic device according to claim 2 , wherein the elastic member is in a strip shape, two ends of the elastic member are connected to the second end, and a middle portion of the elastic member is connected to the second support plate. 6 . connect. 6. The foldable electronic device according to claim 1, wherein the flexible display screen further comprises a display area located between the first end and the second end, and the first support plate and the second support plate both include Front and back, wherein the first shell surrounds the first support plate on the side where the back of the first support plate is located, and the second shell surrounds the second support plate on the side where the back of the second support plate is located. A support plate, the display area is located on the side where the front surfaces of the first and second support plates are located, and the second end is bent relative to the display area and located between the back surface of the second support plate and the second casing. 7 . The foldable electronic device according to claim 6 , further comprising an elastic member, a fixing post is arranged on the back of the second support plate, and the elastic member is connected to the second end and the fixing post. 8 . between. 8 . The foldable electronic device according to claim 6 , wherein the first end is bent relative to the display area and is located between the back of the first support plate and the first casing. 9 . 9 . The foldable electronic device according to claim 6 , further comprising a first camera module, the first camera module is disposed on the front of the first support plate, and the flexible display screen displays A through hole is opened on the area, and the first camera module is exposed from the through hole. 10 . The foldable electronic device according to claim 1 , further comprising a second camera module, and the first housing includes an inner surface facing the first support plate and an outer surface facing away from the first support plate. 11 . The second shell includes an inner surface facing the second support plate and an outer surface facing away from the second support plate, the second camera module is exposed on the outer surface of the first shell, the second An accommodating groove is provided on the outer surface of the casing and is used for accommodating the second camera module in a folded state. 11. A foldable screen assembly having a folded state and an unfolded state, comprising: shaft assembly; a support assembly, comprising a first support plate and a second support plate connected to the shaft assembly, and the first support plate and the second support plate can follow the rotation of the shaft assembly to switch between the folded state and the unfolded state; and The flexible display screen includes a first end and a second end which are oppositely arranged and located on both sides of the rotating shaft assembly, the first end is fixedly connected with the first support plate, and the second end is elastically connected with the second support plate. 12 . The foldable screen assembly according to claim 11 , further comprising an elastic member connected between the second end and the second support plate, wherein the elastic deformation of the elastic member in the folded state is greater than that in the unfolded state. 13 . The amount of elastic deformation of the elastic element in the state. 13 . The foldable screen assembly according to claim 12 , wherein a fixing column for positioning the elastic member is provided on the second support plate. 14 . 14 . The foldable screen assembly according to claim 12 , wherein a clamping member is provided on the second end of the flexible display screen, and a connecting end matched with an elastic member is provided on the clamping member. 15 . 15 . The foldable screen assembly according to claim 12 , wherein the elastic member is in the shape of a strip, two ends of the elastic member are connected to the second end, and a middle portion of the elastic member is connected to the second support plate. 16 . connect. 16. The foldable screen assembly according to claim 11, wherein the flexible display screen further comprises a display area between the first end and the second end, the first support plate and the second support plate each comprising Front and back, the display area is located on the side where the front side of the first and second support plates is located, and the second end is bent relative to the display area and located on the side where the back side of the second support plate is located. 17 . The foldable screen assembly according to claim 16 , further comprising an elastic member, a fixing column is provided on the back of the second support plate, and the elastic member is connected to the second end and the fixing column. 18 . between. 18. The foldable screen assembly according to claim 16, wherein the first end is bent relative to the display area and is located on the side where the back of the first support plate is located. 19 . The foldable screen assembly according to claim 16 , further comprising a first camera module, the first camera module is arranged on the front of the first support plate, and the display of the flexible display A through hole is opened on the area, and the first camera module is exposed from the through hole.