CN111262978A

CN111262978A - Folding display device and mobile terminal

Info

Publication number: CN111262978A
Application number: CN202010046919.XA
Authority: CN
Inventors: 任荣清
Original assignee: Wingtech Communication Co Ltd
Current assignee: Wingtech Communication Co Ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-06-09
Also published as: WO2021143363A1

Abstract

The invention belongs to the technical field of electronic equipment and discloses a folding display device and a mobile terminal, wherein the folding display device comprises a shell, a flexible screen and a driving mechanism, wherein the shell is provided with a shell front face, a shell side face and a shell back face; the flexible screen is at least partially coated on the front surface of the shell, the side surface of the shell and the back surface of the shell; the driving mechanism is configured to drive the flexible screen to slide along the surfaces of the front surface of the shell, the side surface of the shell and the back surface of the shell; the mobile terminal comprises the folding display device. Has the advantages that: the flexible screen at least partially covers the surfaces of the front surface of the shell, the side surfaces of the shell and the back surface of the shell and can slide along the surface of the shell under the action of the driving mechanism, so that the display area of the flexible screen on one plane is enlarged.

Description

Folding display device and mobile terminal

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a folding display device and a mobile terminal.

Background

With the development of the technology, the mobile terminal tends to be large-sized, light and thin, for example, a screen of an existing smart phone is generally fixed on a device, so that the size of the screen is affected by the size of the device, which is not beneficial to the large-sized device.

Disclosure of Invention

The invention aims to provide a folding display device and a mobile terminal, and aims to solve the problem that the screen size is restricted by the size of equipment so that large screen cannot be realized.

In order to achieve the purpose, the invention adopts the following technical scheme:

in one aspect, the present invention provides a foldable display device, comprising:

a housing having a housing front face, a housing side face, and a housing back face;

the flexible screen at least partially covers the front face of the shell, the side faces of the shell and the back face of the shell;

a drive mechanism configured to drive the flexible screen to slide along surfaces of the housing front face, housing side faces, and housing back face.

The flexible screen at least partially covers the surfaces of the front surface of the shell, the side surfaces of the shell and the back surface of the shell and can slide along the surface of the shell under the action of the driving mechanism, so that the display area is enlarged on one plane.

As a preferable aspect of the above folding display device, the flexible panel has a housed state covering the back surface of the housing at the maximum and an expanded state covering the back surface of the housing at the minimum, wherein:

when in the storage state, the flexible screen does not protrude out of the edge of the front face of the shell;

in the unfolded state, the flexible screen protrudes beyond the edge of the front face of the housing.

When the flexible screen is in the storage state, the flexible screen does not protrude out of the front edge of the shell and is in a state of covering the shell to the maximum extent, and when the flexible screen is in the unfolding state, the flexible screen protrudes out of the front edge of the shell and is in a state of covering the shell to the minimum extent, namely the flexible screen extends outwards, and finally the whole flexible screen is displayed on the same plane.

As a preferable scheme of the folding display device, the flexible screen includes a front screen, a bending portion and a back screen, the bending portion is in transmission connection with the driving mechanism, and the bending portion covers the side surface of the housing.

The driving mechanism is in transmission connection with the bending part, and the back screen and the front screen are driven to move together through the movement of the bending part.

In a preferred embodiment of the foldable display device, the front screen is provided with a support mechanism, the front surface of the housing is provided with a guide portion extending in the sliding direction, and the support mechanism is slidably connected to the guide portion.

The front screen is provided with a supporting mechanism, and the front face of the shell is provided with guide parts which are matched with each other, so that the front face of the shell extending out of the shell can still keep level and more stable, and the display effect is not influenced.

As a preferable mode of the folding display device, the driving mechanism includes a rotating member provided with a first convex tooth portion; the bending part is provided with a second convex tooth part, and the first convex tooth part is meshed with the second convex tooth part.

Through the meshing of first convex tooth portion and second convex tooth portion, the length of rotation and the removal length and the speed that the speed corresponds the screen of rotation piece can realize the uniformity and the stability of the whole translation speed of screen.

In a preferred embodiment of the foldable display device, the second convex teeth are provided on an inner surface of the rear screen. The rotating piece applies force to the back screen, and the screen moves on two adjacent planes more smoothly in the process from the storage state to the unfolding state.

As a preferable mode of the mobile terminal, the rotating member is disposed on a side surface of the housing, and the first convex tooth portion is engaged with both the second convex tooth portion of the bending portion and the second convex tooth portion on the rear screen. The rotating piece is arranged on the side face of the shell and can be used for assisting in supporting the edge of the shell, and the length of the front screen is maximized.

In a preferred embodiment of the above-described mobile terminal, the support mechanism is provided on both sides of the front screen in the sliding direction, and the guide portion is provided to cover the support mechanism.

The edge of the front screen is coated by the guide part, and the two sides of the screen are always in the guide part in the sliding process of the screen, so that the dustproof effect of the terminal is improved.

As a preferable mode of the mobile terminal, the supporting mechanism is provided on a non-display surface of the front screen, the guide portion is one of a rib and a slide groove, and the supporting mechanism is provided with the other of the rib and the slide groove. The display surface of the flexible screen is not provided with a flange, so that the display area of the flexible screen is the largest.

In another aspect, the present invention further provides a mobile terminal including the above folding display device.

The invention has the beneficial effects that: the flexible screen at least partially covers the surfaces of the front surface of the shell, the side surfaces of the shell and the back surface of the shell and can slide along the surface of the shell under the action of the driving mechanism, so that the display area is enlarged on one plane.

Drawings

FIG. 1 is a schematic structural diagram of a foldable display device in a storage state according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a foldable display device in an unfolded state according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a driving mechanism of a foldable display device according to an embodiment of the present invention cooperating with a flexible screen;

FIG. 4 is an expanded view of the rear screen of the foldable display device according to the embodiment of the present invention;

FIG. 5 is a schematic view illustrating a rotating member of a foldable display device according to an embodiment of the present invention;

FIG. 6 is a schematic view of a rotating member of a foldable display device according to another embodiment of the present invention;

fig. 7 is a schematic structural view of a guide part of a foldable display device according to an embodiment of the present invention in cooperation with a front screen;

fig. 8 is a schematic structural view of a guide part of a foldable display device according to another embodiment of the present invention, which is engaged with a front screen.

In the figure:

1-a shell; 2-a flexible screen; 3-a drive mechanism;

1A-front of the housing; 1B-shell side; 1C-the back of the housing; 10-a guide; 21-front screen; 22-a bending part; 23-rear screen; 31-a rotating member; 32-a first male tooth portion;

211-a support mechanism; 231-second male tooth portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The invention provides a folding display device.

As shown in fig. 1 to 3, the foldable display screen includes a housing 1 and a flexible screen 2. The flexible screen driving device comprises a shell 1, a flexible screen 2, a driving mechanism 3 and a control unit, wherein the shell 1 is provided with a shell front face 1A, a shell side face 1B and a shell back face 1C, the flexible screen 2 at least partially covers the shell front face 1A, the shell side face 1B and the shell back face 1C, and the driving mechanism 3 is connected with the flexible screen 2 and can drive the flexible screen 2 to slide along the surfaces of the shell front face 1A, the shell side face 1B and the shell back face 1C.

It should be noted that in this embodiment, the driving mechanism 3 can drive the back screen 23 to slide from the left side of the foldable display device to the right side of the front face 1A of the housing, and the bending portion 22 corresponds to the left side of the foldable display device.

Of course, the driving mechanism 3 can drive the back screen 23 to slide onto the front surface 1A of the housing from the bottom of the foldable display device in the length direction to the top of the foldable display device in the length direction, and at this time, the bending portion 22 may also be disposed at the bottom of the foldable display device in the length direction.

The flexible screen 2 has a housed state covering the housing back face 1C at the maximum and a deployed state covering the housing back face 1C at the minimum.

As shown in fig. 1, the flexible screen 2 has a front screen 21, a bending portion 22 and a back screen 23, and the region is dynamically divided, for example, when the foldable display device is in a storage state, the front screen 21 is disposed on the front surface 1A of the housing, the bending portion 22 is disposed on the side surface 1B of the housing, and the back screen 23 is disposed on the back surface 1C of the housing. As shown in fig. 2, in the unfolded state, the area of the front screen 21 of the flexible screen 2 is increased, the area of the rear screen 23 is gradually decreased, and a portion of the front screen 21 protrudes from the front face 1A of the housing.

In the storage state, the display state of the folding display device can be set to: case one, only on the front screen 21; case two, display only on the back screen 23; case three, shown only on bend 22; case four, the front screen 21 and the bending part 22 are displayed simultaneously; case five, the display is performed simultaneously on the bending part 22 and the rear screen 23; in case six, the front screen 21, the bending portion 22, and the rear screen 23 are displayed simultaneously.

For example, in the storage state, the area of the front screen 21 corresponds to the area of the front side 1A of the housing, and the area of the rear screen 23 corresponds to only half of the area of the rear side 1C of the housing, so that the user can select the case two to use, that is, only the small rear screen 23 is used, thereby achieving the power saving mode.

Kink 22 is connected in the transmission of actuating mechanism 3, actuating mechanism 3 drives kink 22 promptly, from accomodating the state to the expansion state in-process, back screen 23 all shifts to on casing side 1B and as kink 22, kink 22 shifts gradually to the positive 1A of casing and as positive screen 21, make the front screen 21 on the positive 1A of casing before simultaneously outwards stretch out, realize front screen 21, kink 22 and back screen 23 all are located folding display device's same surface, thereby realize bigger display effect.

As shown in fig. 3, the driving mechanism 3 includes a rotating member 31, the rotating member 31 is configured to rotate around its central axis L, the rotating member 31 is provided with a first convex tooth portion 32; the inner surface of the bent portion 22 is provided with a second convex tooth portion 231, and the first convex tooth portion 32 is engaged with the second convex tooth portion 231.

When the rotating member 31 rotates around the central axis L, the first convex tooth portion 32 can drive the second convex tooth portion 231 and the rotating member 31 to generate relative displacement, so as to push the screen 2 to slide.

In the present embodiment, the second tooth 231 is provided on the inner surface of the rear screen 23, i.e., the same area of the flexible panel 2 that the rotating member 31 contacts during the process from the unfolded state to the stored state and during the process from the stored state to the unfolded state.

In the present embodiment, when the rotating member 31 rotates clockwise about the center axis L, the flexible panel 2 performs the unfolding operation, and when the rotating member 31 rotates counterclockwise about the center axis L, the flexible panel 2 performs the storage operation.

In the present embodiment, the rotating member 31 is provided on the case side surface 1B. On the one hand, the rotating piece 31 is located on the side surface 1B of the shell and can assist in supporting the edge of the shell 1, on the other hand, the rotating piece 31 can be always meshed with the flexible screen 2 in the process from the unfolding state to the storage state, and the rotating piece 31 can extend smoothly when moving.

Referring to fig. 4, the second tooth parts 231 extend in a stripe structure in a direction perpendicular to the arrangement direction.

The rotating member 31 has a cylindrical structure, and as shown in fig. 5, the first teeth 32 extend along the axial direction of the rotating member 31, or as shown in fig. 6, the first teeth 32 are multiple sets arranged along the axial direction of the rotating member 31.

In order to keep the front screen 21 horizontal after protruding from the front face 1A of the housing, as shown in fig. 1, 2, 7 and 8, the front face 1A of the housing is provided with a guide portion 10 extending in the arrangement direction, and the front screen 21 includes a support mechanism 211, and the support mechanism 211 is slidably connected to the guide portion 10.

By slidably coupling the support mechanism 211 to the guide portion 10, the front screen 21 is still limited by the guide portion 10 after being scribed, and is kept horizontal and does not bend when being extended.

As shown in fig. 7, in the present embodiment, the support mechanisms 211 are provided on both sides of the front screen 21 in the sliding direction, and the guide portions 10 are provided on both sides of the housing front 1A and cover the support mechanisms 211. The supporting mechanism 211 is covered by the guide part 10, and both sides of the front screen 21 are always in the guide part 10 during the sliding of the front screen 21, thereby improving the dustproof effect of the mobile terminal.

As is apparent from the above description, the foldable display device is described as a rectangular structure.

If the bending portion 22 is disposed on the left side of the foldable display device, the driving mechanism 3 can drive the back screen 23 to slide from the left side of the foldable display device to the right side to the front face 1A of the housing, and at this time, the guiding portions 10 are disposed at two ends of the foldable display device in the length direction.

In another embodiment, as shown in fig. 8, the supporting mechanism 211 is disposed on the non-display surface of the front screen 21, the supporting mechanism 211 is provided with a rib, and the guide portion 10 is a slide groove. In another embodiment, the guide part 10 is a rib, and the supporting mechanism 211 is provided with a sliding slot. Compared with the embodiment of fig. 7, the display surface of the flexible screen 2 of the folding display device has no rib, so that the display area of the flexible screen 2 can be larger.

It should be noted that the activation and deactivation of the drive mechanism 3 can be implemented by software, and can also be implemented by hardware. For example, the control may be performed by virtual keys displayed on the screen, and the control may also be performed by setting physical keys on the housing 1. The invention is not limited thereto.

The working principle of the folding display device is as follows:

when the screen is in the storage state, the rotating member 31 can be engaged with the back screen 23 and the second convex tooth 231 of the bending portion 22 at the same time, at this time, the front screen 21 is arranged on the front 1A of the housing, the bending portion 22 is arranged on the side 1B of the housing, the back screen 23 is arranged on the back 1C of the housing, the driving member 31 is started, and when the rotating member 31 rotates counterclockwise around the central axis L, the bending portion 22 and the back screen 23 perform unfolding operation until the rotating member 31 rotates to the tail end of the second convex tooth 231 of the back screen 23, at this time, the front screen 21 extends to the maximum; then, the rotating member 31 is rotated clockwise around the central axis L, the bending portion 22 and the back screen 23 are accommodated, the back screen 23 gradually retracts to the back 1C of the housing, and the front screen 21 gradually retracts to the front 1A of the housing.

The invention also provides a mobile terminal which is provided with the folding display device. After the mobile terminal is assembled with the folding display device, a larger display area can be realized.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A foldable display device, comprising:

a housing (1), the housing (1) having a housing front face (1A), a housing side face (1B) and a housing back face (1C);

a flexible screen (2), the flexible screen (2) at least partially covering the housing front (1A), the housing side (1B) and the housing back (1C);

a drive mechanism (3), the drive mechanism (3) being configured to be able to drive the flexible screen (2) to slide along the surfaces of the housing front face (1A), housing side face (1B) and housing back face (1C).

2. The folding display device according to claim 1, wherein the flexible screen (2) has a housed state covering the housing back (1C) at maximum and an unfolded state covering the housing back (1C) at minimum, wherein:

in the storage state, the flexible screen (2) does not protrude out of the edge of the front face (1A) of the housing;

in the unfolded state, the flexible screen (2) protrudes beyond the edge of the housing front face (1A).

3. The foldable display device according to claim 2, wherein the flexible screen (2) comprises a front screen (21), a bending part (22) and a back screen (23), the bending part (22) is in transmission connection with a driving mechanism, and the bending part (22) covers the housing side (1B).

4. A folding display device according to claim 3, characterised in that the front screen (21) is provided with a support means (211), that the housing front (1A) is provided with a guide (10) extending in the sliding direction, and that the support means (211) is slidably connected to the guide (10).

5. A folding display device according to claim 3, characterised in that the drive mechanism (3) comprises a rotary member (31), the rotary member (31) being provided with a first toothed spur portion (32); the inner surface of the bending part (22) is provided with a second convex tooth part (231), and the first convex tooth part (32) is meshed with the second convex tooth part (231).

6. The folding display device of claim 5, wherein an inner surface of the rear screen (23) is provided with the second protruding tooth portion (231).

7. The folding display device according to claim 6, wherein the rotating member (31) is provided on the housing side surface (1B), and the first convex tooth portion (32) engages with both the second convex tooth portion (231) of the bent portion (22) and the second convex tooth portion (231) on the rear screen (23).

8. The folding display device according to claim 4, wherein the support mechanism (211) is provided on both sides of the front screen (21) in the sliding direction, and the guide portion (10) is provided to cover the support mechanism (211).

9. The folding display device according to claim 4, wherein said support mechanism (211) is provided on a non-display surface of said front screen (21), said guide portion (10) is one of a rib and a slide groove, and said support mechanism (211) is provided with the other of the rib and the slide groove.

10. A mobile terminal characterized by comprising a folding display device according to any one of claims 1-9.