Rollable display device

Abstract

The present application relates to a rollable display device, comprising: a flexible display screen; a support sheet; a first scroll and a second scroll parallel to each other, wherein the first end of the flexible display screen is connected to the first scroll screen, and the first end of the support sheet is connected to the second scroll screen; and a packaging component, wherein the packaging component comprises a packaging tape, and the packaging tape is configured to unfold and retract along a first direction between a first edge of the flexible display screen and a second edge of the support sheet; wherein, when the rollable display device is in a first state, the flexible display screen and the support sheet are both in an unfolded state and the support sheet is supported on a non-display side of the flexible display screen, and the packaging tape is unfolded between the first edge of the flexible display screen and the second edge of the support sheet; and when the rollable display device is in a second state, the flexible display screen is retracted onto the first scroll screen, the support sheet is retracted onto the second scroll screen, and the packaging tape is retracted between the first edge of the flexible display screen and the second edge of the support sheet.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a rollable display device. Background Art

[0002] Currently, consumers are looking for display devices that offer both a large screen and wide viewing angle when in use, and portability when not in use. With the development of flexible display technology, the bendability and foldability of flexible displays have opened up the possibility of portable, large-screen displays. Among these, rollable displays, due to their greater screen expandability, have become a trend in future display development.

[0003] In related art, a rollable display device is equipped with a flexible display screen that can be rolled up and unfolded, and a support member. When the flexible display screen is unfolded, the support member also unfolds and supports the non-display side of the flexible display screen. When the flexible display screen is unfolded, the gap between the flexible display screen and the support member is prone to dust intrusion. In addition, any splashing liquid nearby can also easily enter this gap. Whether dust accumulates in the gap between the flexible display screen and the support member, or liquid enters it, it will adversely affect the performance of the rollable display device. Summary of the Invention

[0004] Based on this, it is necessary to provide a rollable display device, aiming to improve the dust-proof performance of the rollable display device, thereby improving the problem that dust and splashing liquid can easily enter the gap between the flexible display screen and the support.

[0005] According to one aspect of the present application, a rollable display device is provided. The rollable display device includes:

[0006] Flexible displays;

[0007] Support sheet;

[0008] A first scroll and a second scroll parallel to each other, wherein the first end of the flexible display screen is connected to the first scroll, and the first end of the supporting sheet is connected to the second scroll; and

[0009] an encapsulation assembly, the encapsulation assembly comprising an encapsulation tape configured to expand and retract along a first direction between a first edge of the flexible display screen and a second edge of the support sheet;

[0010] In which, the rollable display device has a first state and a second state. When the rollable display device is in the first state, the flexible display screen and the supporting sheet are both in an unfolded state and the supporting sheet is supported on the non-display side of the flexible display screen, and the packaging tape is unfolded between the first edge of the flexible display screen and the second edge of the supporting sheet; when the rollable display device is in the second state, the flexible display screen is rolled up on the first scroll, the supporting sheet is rolled up on the second scroll, and the packaging tape is retracted between the first edge of the flexible display screen and the second edge of the supporting sheet.

[0011] The rollable display device in the embodiment of the present application has a first state and a second state that can be switched between each other, wherein the first state is a use state and the second state is a storage state. When the rollable display device is in the first state, the flexible display screen is in an unfolded state. At this time, the user can get a large-screen, wide-viewing experience. At the same time, the support sheet is also in an unfolded state and supported on the non-display side of the flexible display screen to provide support for the flexible display screen. When the rollable display device is in the second state, the flexible display screen is rolled up on the first scroll and the support sheet is rolled up on the second scroll. At this time, the rollable display device has good portability. In addition, the rollable display device also includes a packaging component, which includes a packaging strip that can be unfolded and retracted along a first direction between the first edge of the flexible display screen and the second edge of the support sheet. When the rollable display device is in the first state, the packaging tape is unfolded between the first edge of the flexible display screen and the second edge of the support sheet. Thus, the packaging tape can block the gap between the flexible display screen and the support sheet, thereby achieving a dust-proof and waterproof effect. That is, under the blocking effect of the packaging tape, dust and splashing liquid cannot enter the gap between the flexible display screen and the support sheet through the first edge, which is conducive to ensuring the stable performance of the rollable display device.

[0012] In some embodiments, the rollable display device also includes a driving device for driving the flexible display screen and the supporting sheet to unfold, and the driving device includes a slider that can output motion; the driving device also includes a motor and a ball screw module that is transmission-connected to the motor, and the slider is arranged on the ball screw module.

[0013] In some embodiments, the packaging assembly also includes a mounting frame, which is used to tension the packaging tape and is arranged between the first scroll and the second scroll. One end of the mounting frame is fixedly connected to the slider, and the other end of the mounting frame is close to the first edge of the flexible display screen.

[0014] In some embodiments, the packaging tape comprises:

[0015] a first section located between a first edge of the first flexible display screen and a second edge of the supporting sheet and extending along the first direction;

[0016] a second section on the mounting frame extending in a second direction perpendicular to the first direction; and

[0017] a third section extending along the first direction;

[0018] The first section, the second section and the third section are connected in sequence so that the support belt is approximately in a "Z" shape.

[0019] In some embodiments, the support sheet includes a main body and a thinning portion, the thinning portion is arranged near the second edge of the support sheet, the thickness of the thinning portion is less than the thickness of the main body, and the first section of the packaging tape is arranged between the thinning portion and the flexible display screen.

[0020] In some embodiments, the mounting frame includes a bracket, a first roller and a second roller, the bracket is connected to the slider, the first roller is arranged on the bracket and close to the first edge of the flexible display screen, the second roller is arranged on the bracket and close to the slider, the packaging tape is tensioned on the first roller and the second roller, and the second section is located between the first roller and the second roller.

[0021] In some embodiments, the packaging assembly further includes a plurality of reinforcing blocks spaced apart along the length direction of the packaging strip, the reinforcing blocks are fixed on the packaging strip, the reinforcing blocks are magnetic, and the supporting sheet is a metal sheet made of magnetic metal.

[0022] In some embodiments, the support sheet is a magnetic steel sheet.

[0023] In some embodiments, the reinforcement block is a cylindrical structure.

[0024] In some embodiments, the rollable display device further comprises a base, an interior of the base is provided with an accommodating cavity, and the driving device is disposed in the accommodating cavity;

[0025] The base is provided with a through slot extending along a first direction, one end of the mounting bracket is passed through the through slot, the third section is located in the accommodating cavity, and the second section is passed through the through slot.

[0026] In some embodiments, the rollable display device further comprises:

[0027] a first storage shell, wherein the first scroll is disposed in the first storage shell, and the first storage shell is provided with a first opening for extending the flexible display screen; and

[0028] a second storage shell, wherein the second scroll is disposed in the second storage shell, and the second content shell is provided with a second opening for extending the support sheet;

[0029] The second end of the flexible display screen is connected to the second storage shell, the second end of the support sheet is connected to the first storage shell, and one of the first storage shell and the second storage shell is connected to the slider or the mounting bracket.

[0030] In some embodiments, the rollable display device further includes a guide shaft disposed in the first receiving shell and close to the first opening, and the flexible display screen is tensioned on the guide shaft.

[0031] In some embodiments, the rollable display device further comprises:

[0032] a first storage shell, wherein the first scroll and the second scroll are both disposed in the first storage shell, and the first storage shell is provided with a first opening for extending the flexible display screen and the supporting sheet;

[0033] Wherein, the second end of the flexible display screen and the second end of the supporting sheet are both connected to the mounting frame.

[0034] In some embodiments, the rollable display device further includes a first coil spring and a second coil spring, wherein the first coil spring is connected to the first reel, and the second coil spring is connected to the second reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Schematic diagram of the structure of a rollable display device in one embodiment of the present application;

[0036] Figure 2 Schematic diagram of the structure of the rollable display device in one embodiment of the present application when the base is omitted;

[0037] Figure 3 This is a schematic structural diagram of a rollable display device in an embodiment of the present application when the base and the driving device are omitted;

[0038] Figure 4 Schematic diagram of the positional relationship among the packaging component, the first reel, and the second reel in one embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of a flexible display screen in an embodiment of the present application in an unfolded state;

[0040] Figure 6 This is a schematic diagram of a supporting sheet in an embodiment of the present application in an unfolded state;

[0041] Figure 7 This is a schematic structural diagram of a packaging assembly in one embodiment of the present application;

[0042] Figure 8 This is a schematic front view of a support sheet in one embodiment of the present application;

[0043] Figure 9 is a schematic side view of a support sheet in one embodiment of the present application;

[0044] Figure 10 FIG. 1 is a schematic structural diagram of a rollable display device in another embodiment of the present application (from a top view). DETAILED DESCRIPTION

[0045] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it can be directly on the other element or intervening elements may be present. Furthermore, when a layer is referred to as being "under" another layer, it can be directly below or one or more light-emitting units may be present. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or one or more light-emitting units may be present.

[0048] In the case of using “including,” “having,” and “comprising” described herein, another component may be added unless a clear limiting term such as “only,” “consisting of,” etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as having one number.

[0049] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this application.

[0050] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately," "approximately," or "substantially" can mean within one or more standard deviations, and is not limited here.

[0051] Furthermore, in the specification, the phrase “planar distribution diagram” refers to a drawing when the target portion is viewed from above, and the phrase “cross-sectional diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0052] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0053] Currently, consumers are looking for display devices that offer both a large screen and wide viewing angle when in use, and portability when not in use. With the development of flexible display technology, the bendability and foldability of flexible displays have opened up the possibility of portable, large-screen displays. Among these, rollable displays, due to their greater screen expandability, have become a trend in future display development.

[0054] In related art, a rollable display device is equipped with a flexible display screen that can be rolled up and unfolded, and a support member. When the flexible display screen is unfolded, the support member also unfolds and supports the non-display side of the flexible display screen. When the flexible display screen is unfolded, the gap between the flexible display screen and the support member is prone to dust intrusion. In addition, any splashing liquid nearby can also easily enter this gap. Whether dust accumulates in the gap between the flexible display screen and the support member, or liquid enters it, it will adversely affect the performance of the rollable display device.

[0055] In response to the above problems, an embodiment of the first aspect of the present application proposes a rollable display device, aiming to improve the dust-proof performance of the rollable display device, thereby improving the problem that dust and splashing liquid can easily enter the gap between the flexible display screen and the support member.

[0056] like Figures 1 to 5As shown, the rollable display device 10 in the embodiment of the first aspect of the present application includes a flexible display screen 100, a support sheet 200, a first scroll 300, a second scroll 400, and a packaging assembly 500. Specifically, the first scroll 300 and the second scroll 400 are parallel to each other, the first end 101 of the flexible display screen 100 is connected to the first scroll 300, and the first end 201 of the support sheet 200 is connected to the second scroll 400. The packaging assembly 500 includes a packaging tape 511, which is configured to expand and retract along a first direction between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200, wherein the first direction X is the direction in which the flexible display screen 100 is expanded and retracted. The rollable display device 10 has a first state and a second state. When the rollable display device 10 is in the first state, the flexible display screen 100 and the support sheet 200 are both in an unfolded state, with the support sheet 200 supported on the non-display side of the flexible display screen 100. The packaging tape 511 is unfolded between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200. When the rollable display device 10 is in the second state, the flexible display screen 100 is retracted onto the first reel 300, the support sheet 200 is retracted onto the second reel 400, and the packaging tape 511 is retracted between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200.

[0057] It will be appreciated that the rollable display device 10 typically also includes a base 700 for accommodating a drive mechanism 600, wherein the drive mechanism 600 is used to drive the flexible display 100 to unfold. This causes one edge of the flexible display 100 to be close to the base 700 and the other edge to be away from the base 700. The first edge 103 of the flexible display 100 refers to the edge of the flexible display 100 that is away from the base 700. Similarly, the support sheet 200 also has one edge close to the base 700 and the other edge away from the base 700. The second edge 203 of the support sheet 200 also refers to the edge of the support sheet 200 that is away from the base 700.

[0058] The rollable display device 10 in the embodiment of the present application has a first state and a second state that can be switched between them, wherein the first state is the in-use state and the second state is the stowed state. When the rollable display device 10 is in the first state, the flexible display 100 is in an unfolded state, allowing the user to enjoy a large-screen, wide-viewing experience. Simultaneously, the support sheet 200 is also in an unfolded state and supported on the non-display side of the flexible display 100 to provide support for the flexible display 100. When the rollable display device 10 is in the second state, the flexible display 100 is retracted onto the first reel 300 and the support sheet 200 is retracted onto the second reel 400. In this state, the rollable display device 10 has excellent portability. Furthermore, the rollable display device 10 also includes a packaging assembly 500, which includes a packaging strip 511 that can be unfolded and retracted along a first direction X between the first edge 103 of the flexible display 100 and the second edge 203 of the support sheet 200. When the rollable display device 10 is in the first state, the packaging tape 511 is unfolded between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200. Thus, the packaging tape 511 can block the gap between the flexible display screen 100 and the support sheet 200, thereby achieving a dust-proof and waterproof effect. That is, under the blocking effect of the packaging tape 511, dust and splashing liquid cannot enter the gap between the flexible display screen 100 and the support sheet 200 through the first edge 103, which is conducive to ensuring the stable performance of the rollable display device 10.

[0059] It is understood that the provision of the base 700 prevents dust and splashing liquid from easily entering the gap between the flexible display 100 and the support sheet 200 from the edge of the flexible display 100 near the base 700. Therefore, dust and water protection is only required between the first edge 103 of the flexible display 100 and the second edge 203 of the support sheet 200 using the packaging tape 511.

[0060] In some embodiments, the rollable display device 10 further includes a drive device 600 for driving the flexible display screen 100 and the support sheet 200 to unfold. The drive device 600 includes a slider 610 that can output motion. The motion trajectory of the slider 610 can be a straight line. Thus, by sliding the slider 610, the flexible display screen 100 and the support sheet 200 can be controlled to unfold (the specific unfolding method will be described later).

[0061] Furthermore, the drive device 600 also includes a motor 620 and a ball screw module 630 in transmission connection with the motor 620. The slider 610 is mounted on the ball screw module 630. The motor 620 provides power, while the ball screw module 630 transmits power, converting the rotation of the output shaft of the motor 620 into linear motion of the slider 610. Because the ball screw module 630 is a common transmission mechanism, it will not be described in detail in this application.

[0062] In some embodiments, as Figure 4 、 Figure 7 As shown, the packaging assembly 500 further includes a mounting frame 520, which is used to tension the packaging tape 511. The mounting frame 520 is disposed between the first reel 300 and the second reel 400. One end of the mounting frame 520 is fixedly connected to the slider 610, and the other end of the mounting frame 520 is adjacent to the first edge 103 of the flexible display 100. As a result, the mounting frame 520 moves synchronously with the slider 610, thereby driving the packaging tape 511 to expand and retract between the first edge 103 of the flexible display 100 and the second edge 203 of the support sheet 200.

[0063] Furthermore, the packaging tape 511 includes a first section 5111 located between the first edge 103 of the first flexible display screen 100 and the second edge 203 of the support sheet 200 and extending along a first direction X, a second section 5112 supported on the mounting frame 520 and extending along a second direction Y perpendicular to the first direction X, and a third section 5113 extending along the first direction X. The first section 5111, the second section 5112, and the third section 5113 are sequentially connected so that the packaging tape 511 is approximately Z-shaped.

[0064] In this embodiment, the packaging tape 511 provides dust and water protection. Specifically, the packaging tape 511 includes three sequentially connected sections: a first section 5111 located between the first edge 103 of the first flexible display 100 and the second edge 203 of the support sheet 200 and extending along the first direction X; a second section 5112 supported on the mounting frame 520 and extending along the second direction Y; and a third section 5113 extending along the first direction X. The packaging tape 511 is generally Z-shaped. As the mounting frame 520 linearly moves along the first direction X, the lengths of the first section 5111 and the third section 5113 change. The increase or decrease in length of the first section 5111 allows the packaging tape 511 to expand and retract along the first direction X between the first edge 103 of the flexible display 100 and the second edge 203 of the support sheet 200. That is to say, the packaging tape 511 is unfolded along the first direction X between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200, which is specifically manifested as the length of the first section 5111 becomes longer; the packaging tape 511 is retracted along the first direction X between the first edge 103 of the flexible display screen 100 and the second edge 203 of the support sheet 200, which is specifically manifested as the length of the first section 5111 becomes shorter.

[0065] In some embodiments, as Figure 8 、 Figure 9 As shown, the support sheet 200 includes a main portion 210 and a thinned portion 220. The thinned portion 220 is located near the second edge 203 of the support sheet 200 and is thinner than the main portion 210. The first section 5111 of the packaging tape 511 is located between the thinned portion 220 and the flexible display 100. In this embodiment, the support sheet 200 includes the main portion 210 and the thinned portion 220. The thinned portion 220 is thinner than the main portion 210. This creates a receiving groove between the thinned portion 220 and the flexible display 100, providing space for the first section 5111 of the packaging tape 511. When deployed, the main portion 210 of the support sheet 200 contacts the flexible display 100, thereby providing support for the flexible display 100.

[0066] In some embodiments, the mounting frame 520 includes a bracket 521, a first rolling member 522, and a second rolling member 523. The bracket 521 is connected to the slider 610. The first rolling member 522 is disposed on the bracket 521 and is proximate to the first edge 103 of the flexible display 100. The second rolling member 523 is disposed on the bracket 521 and is proximate to the slider 610. The packaging tape 511 is tensioned between the first and second rolling members 522, 523, and the second section 5112 is located between the first and second rolling members 522, 523. In this embodiment, the mounting frame 520 includes the bracket 521, and the bracket 521 is connected to the slider 610, thereby enabling the mounting frame 520 to move synchronously with the slider 610. The mounting frame 520 further includes a first rolling member 522 and a second rolling member 523 disposed on the bracket 521. The first rolling member 522 is located near the first edge 103 of the flexible display screen 100, and the second rolling member 523 is located near the slider 610. The first and second rolling members 522, 523 are used to tension and steer the packaging tape 511. The first and second sections 5111, 5112 of the packaging tape 511 are joined at the first rolling member 522, and the second and third sections 5112, 5113 are joined at the second rolling member 523. Furthermore, the first and second rolling members 522, 523 are freely rotatable relative to the bracket 521. This configuration reduces friction during the movement of the packaging tape 511, ensuring smoother movement.

[0067] Furthermore, the first rolling element 522 and the second rolling element 523 may be, for example, rollers, roller shafts, etc.

[0068] In some embodiments, the packaging assembly 500 further includes a plurality of reinforcing blocks 512 spaced apart along the length of the packaging strip 511. The reinforcing blocks 512 are fixed to the packaging strip 511 and are magnetic. The support sheet 200 is a metal sheet made of a magnetic conductive metal. In this embodiment, the plurality of reinforcing blocks 512 are spaced apart along the length of the packaging strip 511. When the rollable display device 10 is in the first state, some of the reinforcing blocks 512 are spaced apart on the first section 5111 of the packaging strip 511. These reinforcing blocks 512 are magnetically attracted to the support sheet 200 made of a magnetic conductive metal. Since these reinforcing blocks 512 are spaced apart along the first direction X, the flatness of the support sheet 200 is improved when the rollable display device 10 is unfolded.

[0069] In some embodiments, the support sheet 200 is a magnetic steel sheet, thereby enabling the support sheet 200 to be attracted to the reinforcement block 512 while having good structural strength.

[0070] In some embodiments, the reinforcing block 512 is a cylindrical structure. This configuration allows the reinforcing block 512 to easily pass through the first rolling member 522 or the second rolling member 523 when moving with the packaging strip 511, thereby preventing the packaging strip 511 from being unable to move due to the reinforcing block 512 being stuck on the first rolling member 522 or the second rolling member 523.

[0071] In some embodiments, please refer to Figure 1 The rollable display device 10 further includes a base 700, which has an internal receiving cavity. The drive device 600 is disposed in the receiving cavity. The base 700 is provided with a through slot extending along the first direction X. One end of the mounting bracket 520 extends through the through slot. The third section 5113 of the packaging tape 511 is located within the receiving cavity, and the second section 5112 extends through the through slot.

[0072] In this embodiment, the rollable display device 10 further includes a base 700, with the drive device 600 disposed within a housing cavity of the base 700. This prevents the drive device 600 from being exposed, thereby maintaining a simple appearance. Furthermore, the third section 5113 of the packaging strip 511 is located within the housing cavity. A through slot 710 extending along the first direction X is provided on the base 700. The second section 5112 and the mounting bracket 520 are both disposed within the through slot 710, allowing the second section 5112 to extend close to the first edge of the flexible display 100.

[0073] In some embodiments, please refer to Figure 2The rollable display device 10 further includes a first storage housing 800 and a second storage housing 900. The first scroll 300 is disposed in the first storage housing 800. The first storage housing 800 is provided with a first opening for extending the flexible display 100. The second scroll 400 is disposed in the second storage housing 900. The second inner housing is provided with a second opening for extending the support sheet 200. The second end of the flexible display 100 is connected to the second storage housing 900, and the second end of the support sheet 200 is connected to the first storage housing 800. One of the first storage housing 800 and the second housing is connected to the slider 610 or the mounting bracket 520. In the rollable display device 10 of this embodiment, the unfolding process of the flexible display screen 100 is as follows: the slider 610 of the driving device 600 moves along the first direction X, driving a storage shell connected to the slider 610 or the mounting frame 520 to move, so that the first storage shell 800 and the second storage shell 900 move away from each other. Since the first scroll 300 is located in the first storage shell 800 and the second end of the flexible display screen 100 is connected to the second storage shell 900, the second scroll 400 is located in the second storage shell 900 and the second end of the support sheet 200 is connected to the first storage shell 800. Therefore, in the process of the first storage shell 800 and the second storage shell 900 moving away from each other, under the pulling action of the second storage shell 900, the flexible display screen 100 unfolds, and at the same time, under the pulling action of the first storage shell 800, the support sheet 200 unfolds.

[0074] Furthermore, the end of the first segment 5111 away from the second segment 5112 can be connected to one of the first storage shell 800 and the second storage shell 900 that is not driven by the slider 610. At the same time, the end of the third segment 5111 away from the second segment 5112 can be connected to the base 700.

[0075] Furthermore, the rollable display device 10 may also include a guide shaft 1000 arranged in the first storage shell 800 and close to the first opening. The flexible display screen 100 is tensioned on the guide shaft 1000. The guide shaft 1000 plays a guiding role during the movement of the flexible display screen 100 to avoid friction between the flexible display screen 100 and the edge of the first opening when the flexible display screen 100 moves.

[0076] In other embodiments, Figure 10As shown, the rollable display device 10 further includes a first storage housing 800, within which the first scroll 300 and the second scroll 400 are disposed. The first storage housing 800 is provided with a first opening for extending the flexible display 100 and the support sheet 200. The second end of the flexible display 100 and the second end of the support sheet 200 are both connected to the mounting bracket 520. In this embodiment of the rollable display device 10, the flexible display 100 is unfolded as follows: the slider 610 of the driving device 600 moves along the first direction X, driving the mounting bracket 520 connected to the slider 610. Since the second end of the flexible display 100 and the second end of the support sheet 200 are both connected to the mounting bracket 520, the flexible display 100 and the support sheet 200 unfold under the pulling action of the mounting bracket 520.

[0077] Furthermore, one end of the first segment 5111 away from the second segment 5112 can be connected to the first storage shell 800 , and at the same time, one end of the third segment 5111 away from the second segment 5112 can be connected to the base 700 .

[0078] In some embodiments, the rollable display device 10 further includes a first coil spring (not shown) and a second coil spring 1100 . The first coil spring is connected to the first reel 300 , and the second coil spring 1100 is connected to the second reel 400 . In this embodiment, the first coil spring is connected to the first reel 300 , so that the first reel 300 maintains a rotational tendency to rewind the flexible display 100 . The second coil spring 1100 is connected to the second reel 400 , so that the second reel 400 maintains a rotational tendency to rewind the support sheet 200 . In this way, during the process of unfolding and rewinding the flexible display 100 , the flexible display 100 can be kept in a tensioned state, thereby facilitating the flatness of the flexible display 100 after unfolding. Similarly, during the process of unfolding and rewinding the support sheet 200 , the support sheet 200 can be kept in a tensioned state, thereby facilitating the flatness of the support sheet 200 after unfolding. In addition, the flexible display screen 100 and the supporting sheet 200 can be rolled up by the force provided by the first coil spring and the second coil spring 1100 in conjunction with the movement of the slider 610 in the driving device 600 .

[0079] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A rollable display device, characterized in that: include: Flexible displays; Support sheet; A first scroll and a second scroll are parallel to each other, wherein the first end of the flexible display screen is connected to the first scroll, and the first end of the supporting sheet is connected to the second scroll; as well as an encapsulation assembly, the encapsulation assembly comprising an encapsulation tape configured to expand and retract along a first direction between a first edge of the flexible display screen and a second edge of the support sheet; The rollable display device has a first state and a second state. When the rollable display device is in the first state, the flexible display screen and the supporting sheet are both in an unfolded state, the supporting sheet is supported on the non-display side of the flexible display screen, and the packaging tape is unfolded between the first edge of the flexible display screen and the second edge of the supporting sheet. When the rollable display device is in the second state, the flexible display screen is rolled up on the first reel, the supporting sheet is rolled up on the second reel, and the packaging tape is retracted between the first edge of the flexible display screen and the second edge of the supporting sheet. The rollable display device further includes a driving device for driving the flexible display screen and the supporting sheet to unfold, the driving device including a slider capable of outputting motion; the motion trajectory of the slider is a straight line, and the flexible display screen and the supporting sheet are controlled to unfold by sliding the slider; The packaging assembly further includes a mounting frame, which is used to tension the packaging tape and is disposed between the first reel and the second reel. One end of the mounting frame is fixedly connected to the slider, and the other end of the mounting frame is adjacent to the first edge of the flexible display screen. The packaging tape comprises: a first section located between a first edge of the flexible display screen and a second edge of the support sheet and extending along the first direction; a second section on the mounting frame extending in a second direction perpendicular to the first direction; and a third section extending along the first direction; Wherein, the first section, the second section and the third section are connected in sequence so that the support belt is approximately in a "Z" shape.

2. The rollable display device according to claim 1, wherein: The driving device further comprises a motor and a ball screw module transmission-connected to the motor, and the slider is arranged on the ball screw module.

3. The rollable display device according to claim 2, wherein: The support sheet includes a main body and a thinning portion, the thinning portion is arranged near the second edge of the support sheet, the thickness of the thinning portion is smaller than the thickness of the main body, and the first section of the packaging tape is arranged between the thinning portion and the flexible display screen.

4. The rollable display device according to claim 3, wherein: The mounting frame includes a bracket, a first rolling member and a second rolling member, the bracket is connected to the slider, the first rolling member is arranged on the bracket and close to the first edge of the flexible display screen, the second rolling member is arranged on the bracket and close to the slider, the packaging tape is tensioned on the first rolling member and the second rolling member, and the second section is located between the first rolling member and the second rolling member.

5. The rollable display device according to claim 3, wherein: The packaging assembly further includes a plurality of reinforcing blocks spaced apart along the length direction of the packaging tape. The reinforcing blocks are fixed to the packaging tape and are magnetic. The supporting sheet is a metal sheet made of magnetic conductive metal.

6. The rollable display device according to claim 5, wherein: The supporting sheet is a magnetic steel sheet.

7. The rollable display device according to claim 5, wherein: The reinforcement block is a cylindrical structure.

8. The rollable display device according to claim 3, wherein: The rollable display device further includes a base, an interior of the base is provided with an accommodating cavity, and the driving device is arranged in the accommodating cavity; The base is provided with a through slot extending along a first direction, one end of the mounting bracket is passed through the through slot, the third section is located in the accommodating cavity, and the second section is passed through the through slot.

9. The rollable display device according to claim 3, wherein: The rollable display device further includes: a first storage shell, wherein the first scroll is disposed in the first storage shell, and the first storage shell is provided with a first opening for extending the flexible display screen; and a second storage shell, wherein the second reel is disposed in the second storage shell, and the second storage shell is provided with a second opening for extending the support sheet; The second end of the flexible display screen is connected to the second storage shell, the second end of the support sheet is connected to the first storage shell, and one of the first storage shell and the second storage shell is connected to the slider or the mounting bracket.

10. The rollable display device according to claim 9, wherein: The rollable display device further includes a guide shaft disposed in the first receiving shell and close to the first opening, and the flexible display screen is tensioned on the guide shaft.

11. The rollable display device according to claim 3, wherein: The rollable display device further includes: a first storage shell, wherein the first scroll and the second scroll are both disposed in the first storage shell, and the first storage shell is provided with a first opening for extending the flexible display screen and the supporting sheet; Wherein, the second end of the flexible display screen and the second end of the supporting sheet are both connected to the mounting frame.

12. The rollable display device according to claim 2, wherein: The rollable display device further includes a first coil spring and a second coil spring, wherein the first coil spring is connected to the first reel, and the second coil spring is connected to the second reel.

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