Display assembly and display device

Abstract

Embodiments of the present disclosure provide a display assembly and a display device, and relate to the technical field of display, and are used for solving the problem of uneven area change of a circular display area. The display assembly provided by the embodiments of the present disclosure comprises a flexible display panel, a supporting member, a rotating member and a driving member. The edge of the rotating member is in contact with the active display part of the flexible display panel, and the rotating member is configured to expand or contract in the direction close to the center of the rotating member, thereby driving the area change of the active display part of the flexible display panel. The rotating member uniformly expands or contracts, thereby driving the radius of the area of the active display part in the display area to uniformly change, and further driving the radius of the display area of the flexible display panel to uniformly change, thereby driving the area of the display area to continuously and uniformly change.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display component, display device, and electronic device. Background Technology

[0002] With the development of flexible display panel technology, electronic devices with adjustable display areas using flexible display panels are becoming increasingly popular. In existing technologies, the display area of ​​flexible display panels is typically adjusted by folding or rolling. For example, foldable phones use a folded flexible display panel to change the screen size, while rollable phones use a rolled flexible display panel. However, when adjusting the display area of ​​a circular flexible display panel (such as in a watch), these two methods result in abrupt changes in the display area, affecting the user's viewing experience and overall usability. Summary of the Invention

[0003] The purpose of this disclosure is to provide a display component, display device, and electronic device, which aims to solve the problem of uneven variation in the circular display area of ​​the display component, which leads to a poor user experience.

[0004] To achieve the above objectives, the embodiments of this disclosure provide the following technical solutions:

[0005] On one hand, a display assembly is provided. The display assembly includes a flexible display panel, a support member, a rotating member, and a driving member. The flexible display panel includes a fixed display portion, a movable display portion, and a connecting portion arranged sequentially in a direction away from the center of the flexible display panel. The support member is located on the back side of the flexible display panel and is connected to the connecting portion of the flexible display panel. The rotating member is located between the flexible display panel and the support member, and the edge of the rotating member contacts the movable display portion of the flexible display panel. The rotating member is configured to retract in a direction close to the center of the rotating member to retract the movable display portion; and to expand in a direction away from the center of the rotating member to expand the movable display portion. The driving member is connected to the rotating member to drive the rotating member to retract or expand.

[0006] In the aforementioned display panel, the rotating component expands or contracts uniformly, causing the radius of the area where the active display part is located to change uniformly, thereby causing the radius of the display area of ​​the flexible display panel to change uniformly, and causing the display area area to change continuously and uniformly.

[0007] In some embodiments, the rotating component includes a base, a central turntable, multiple connecting rods, and multiple telescopic rods. The base is located between the flexible display panel and the support member; the base has multiple grooves spaced circumferentially. The central turntable is located between the base and the support member; the central turntable has multiple assembly shafts spaced circumferentially. In the orthographic projection of the central turntable onto the plane of the base, the multiple assembly shafts are located inside the multiple grooves. One end of a driving component is connected to the center of the central turntable to drive the central turntable to rotate relative to the base. One end of each connecting rod is movably connected to an assembly shaft. The telescopic rod is disposed within a groove, and the other end of each connecting rod is movably connected to one end of the telescopic rod; the other end of the telescopic rod contacts the movable display portion.

[0008] In some embodiments, the telescopic rod includes a first part and a second part that are connected to each other to form a T-shaped structure. The first part is located inside the slide groove, and the second part is located outside the slide groove and contacts the active display unit.

[0009] In some embodiments, the display assembly further includes an elastic ring. A first groove is provided at the end of the plurality of telescopic rods that contacts the movable display portion, and the elastic ring is located within one of the first grooves of the plurality of telescopic rods.

[0010] In some embodiments, the multiple connecting rods are of the same length, and the multiple telescopic rods are of the same length. And / or, the multiple connecting rods are distributed at equal intervals along the circumference, and the multiple telescopic rods are distributed at equal intervals along the circumference.

[0011] In some embodiments, the display assembly further includes a bottom housing disposed on the side of the support member away from the rotating member. The drive member includes a transmission screw and a rotating screw. The support member has a first through hole at its center, through which the transmission screw passes and connects to the central disk of the rotating member. The rotating screw is fixed to the bottom housing, and one end of the rotating screw is drively connected to the end of the transmission screw away from the central disk.

[0012] In some embodiments, a first gear is provided at one end of the transmission screw connected to the rotating screw, and a second gear is provided at the other end of the rotating screw connected to the transmission screw, with the first gear meshing with the second gear.

[0013] In some embodiments, the transmission screw further includes a first rod and a second rod. The second rod is sleeved outside the first rod and is rotatable relative to the first rod. One end of the first rod is connected to the bottom housing, and a first gear is disposed on the second rod.

[0014] In some embodiments, the bottom housing is provided with a retaining tooth, and the rotating screw is provided with a structural wheel, which is assembled with the retaining tooth.

[0015] In some embodiments, the support member has an directional hole at a non-central location, and the bottom housing has a directional pin that passes through the directional hole.

[0016] In some embodiments, the bottom housing includes a base plate and sidewalls surrounding the base plate, the sidewalls having a second through hole. The other end of the rotating screw passes through the second through hole.

[0017] In some embodiments, the wall of the first through hole of the support member is threaded, and the first through hole is threadedly connected to the transmission screw.

[0018] In some embodiments, the bottom housing has a receiving cavity, and the rotating screw passes through the receiving cavity.

[0019] In some embodiments, the surface of the support member near the rotating member is provided with a second groove, and the inner surface of the second groove is connected to the connecting portion. Alternatively, the surface of the support member away from the rotating member is connected to the connecting portion.

[0020] On the other hand, a display device is provided. The display device includes a display component and a circuit board as described in any of the above embodiments. The circuit board is electrically connected to the display component. The beneficial effects achievable by the display device can be referred to the beneficial effects of the display component described above, and will not be repeated here.

[0021] Furthermore, an electronic device is provided. The electronic device includes a display device as described in any of the above embodiments. The beneficial effects achievable by the electronic device are similar to those of the display components described above, and will not be repeated here. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0023] Figure 1 This is a diagram showing the area variation of the display screen in a display device in related technologies;

[0024] Figure 2 A structural diagram of a display device provided for some embodiments of this disclosure;

[0025] Figure 3 An exploded view of a display component provided for some embodiments of this disclosure;

[0026] Figure 4 A structural diagram of a flexible display panel provided for some embodiments of this disclosure;

[0027] Figure 5A structural diagram of a support member provided for some embodiments of this disclosure;

[0028] Figure 6 A structural diagram of a base provided for some embodiments of this disclosure;

[0029] Figure 7 A structural diagram of a central turntable provided for some embodiments of this disclosure;

[0030] Figure 8 A front view of a central turntable provided for some embodiments of this disclosure;

[0031] Figure 9 Structural diagrams of the rotating component in a retracted state provided for some embodiments of this disclosure;

[0032] Figure 10 Structural diagrams of the rotating component in an unfolded state provided for some embodiments of this disclosure;

[0033] Figure 11 A front view of a display component provided for some embodiments of this disclosure;

[0034] Figure 12A for Figure 11 A sectional view along section lines A1-A2;

[0035] Figure 12B for Figure 11 Another cross-sectional view along section line A1-A2;

[0036] Figure 13 for Figure 11 Another cross-sectional view along section line A1-A2;

[0037] Figure 14 A front view of the central turntable and base mounting provided for some embodiments of this disclosure;

[0038] Figure 15 An exploded view of yet another display component provided for some embodiments of this disclosure;

[0039] Figure 16 Structural diagrams of the telescopic rod provided for some embodiments of this disclosure;

[0040] Figure 17 Structural diagrams of the drive unit provided for some embodiments of this disclosure;

[0041] Figure 18 Structural diagrams of the bottom housing provided for some embodiments of this disclosure;

[0042] Figure 19 Structural diagrams of the transmission screw provided for some embodiments of this disclosure;

[0043] Figure 20 This is a structural diagram of a rotating screw provided for some embodiments of this disclosure. Detailed Implementation

[0044] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0045] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0046] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0047] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection via an intermediate medium. The term "coupled," for example, indicates that two or more components have direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0048] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0049] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0050] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0051] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0052] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0053] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0054] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0055] In recent years, with the continuous development of display technology, rollable and foldable display devices have gradually become a development trend in mobile electronic products. Rollable display devices can achieve a larger display area when unfolded and a smaller volume when rolled up. For foldable display devices, a smaller volume can be achieved when folded and a larger display area when unfolded.

[0056] In related technologies, the screen size of a display device is adjusted by folding or rolling. For display devices with rectangular screens, such as foldable phones, the size is small when folded and the display area is large when unfolded. For rollable screen phones, the display area gradually increases as the screen unfolds. However, folding or rolling only considers display devices with rectangular screens. For display devices with circular screens, such as watches, the screen area change achieved by folding and rolling is uneven.

[0057] Figure 1 This is a diagram showing the area variation of the display screen in a display device in related technologies.

[0058] See Figure 1 (a) The area of ​​the circular display screen is adjusted by folding. When the display device 1000A is folded, the display screen area S is the first area S1a. As the display screen unfolds, the display screen area S suddenly increases to the sum of the first area S1a and the second area S2a, and the display screen area S exhibits a jump change.

[0059] See Figure 1 (b) The area of ​​the circular display screen is adjusted by sliding. The display screen of the display device 1000B is pulled out from one side, and the display screen area S changes accordingly. The initial area S is the first area S1b. Along the unfolding direction of the display screen, both the length and width change, and the display screen area S becomes the sum of the first area S1b and the second area S2b. For a rectangular display screen, the length remains constant in the unfolding direction; as long as the width changes uniformly, the display screen area also changes gradually. However, for a circular display screen, the length changes unevenly, and even if the width changes uniformly, the display screen area changes unevenly, exhibiting a jump-like change. This causes the image to flicker during display, resulting in a poor user experience.

[0060] Embodiments of this disclosure provide an electronic device in which the display screen of the electronic device expands or contracts outward from the center, so that the display area of ​​the electronic device changes gradually, thereby improving the user experience.

[0061] Electronic devices are those that have image display capabilities (including still images or moving images, where moving images can be video). Examples include monitors, televisions, billboards, digital photo frames, laser printers with display capabilities, telephones, mobile phones, personal digital assistants (PDAs), digital cameras, portable camcorders, viewfinders, navigators, large-area wall displays, home appliances, information retrieval devices (such as business inquiry devices for e-government, banks, hospitals, and power companies), monitors, electronic displays, and in-vehicle displays, but are not limited to these.

[0062] Figure 2 This is a structural diagram of a display device provided for some embodiments of the present disclosure. The display device 1000 includes a display component 100 and a circuit board (not shown). The circuit board is configured to transmit electrical signals to the display component 100 and is electrically connected to the display component 100. The circuit board can be a flexible printed circuit (FPC) or a rigid printed circuit board (PCB), etc.

[0063] Figure 3 An exploded view of a display component provided for some embodiments of this disclosure. Figure 4 This is a structural diagram of a flexible display panel provided for some embodiments of the present disclosure.

[0064] See Figure 3 The display assembly 100 includes a flexible display panel 10, a rotating component 20, a supporting component 40, and a driving component 50. The flexible display panel 10, the rotating component 20, and the supporting component 40 are stacked sequentially.

[0065] The flexible display panel 10 can be any of the following: an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, or a mini LED (or micro LED) display panel, without limitation.

[0066] See Figure 4The flexible display panel 10 has a display area AA and a non-display area SA, where the display area AA is the area on the flexible display panel used for displaying images, and the non-display area SA is the area on the flexible display panel other than the display area AA. The non-display area SA can be located on at least one side of the display area AA (e.g., one side, or multiple sides). For example, the non-display area SA can be arranged around the display area AA. For ease of description below, the display side of the display area AA of the flexible display panel 10 is the front side of the flexible display panel, and the non-display side of the display area AA of the flexible display panel 10 is the back side of the flexible display panel.

[0067] The flexible display panel 10 includes a display portion 11 and a connecting portion 12. The display portion 11 includes a fixed display portion 111 and a movable display portion 112 connected to each other. The fixed display portion 111 is always exposed during display, and the display area AA always includes the fixed display portion 111. The movable display portion 112 is at least partially (e.g., partially, or entirely) exposed during display. This exposed portion of the movable display portion 112 belongs to the display area AA, and the non-exposed portion of the movable display portion 112 belongs to the non-display area SA. During display, the movable display portion 112 may also be entirely non-exposed, in which case the entire movable display portion 112 belongs to the non-display area SA. The connecting portion 12 is always non-exposed during display, and the non-display area SA always includes the connecting portion 12. That is, the areas of the flexible display panel 10 included in the display area AA and the non-display area SA are variable.

[0068] The center O of the flexible display panel is the center of the display area AA. The display area AA of the flexible display panel 10 is circular. A fixed display part 111, a movable display part 112, and a connecting part 12 are sequentially arranged along a direction away from the center O of the flexible display panel. The fixed display part 111 is circular, and the movable display part 112 is a ring surrounding the fixed display part 111, with the center of the movable display part 112 coinciding with the center of the fixed display part 111. The connecting part 12 is arranged around the movable display part 112, and its shape can be a ring or any shape surrounding the movable display part 112, for example, a polygon with a circle removed.

[0069] In some implementations, the display area AA of the flexible display panel 10 is fan-shaped. The fixed display portion 111 is fan-shaped, and the movable display portion 112 is a fan-shaped ring concentric with the fixed display portion 111, located on one side of the arcuate edge of the fan shape of the fixed display portion 111. The connecting portion 12 is a fan-shaped ring concentric with the fixed display portion 111, located on the side of the movable display portion 112 away from the arcuate edge of the fixed display portion 111. In this case, the non-display area SA is located on one side of the display area AA.

[0070] In some other implementations, the display area AA of the flexible display panel 10 is shaped like a fan ring. Along a direction away from the center of the display area AA, a fixed display part 111, a movable display part 112, and a connecting part 12 of the fan ring are arranged sequentially.

[0071] Figure 5 This is a structural diagram of a support member provided for some embodiments of the present disclosure.

[0072] See Figure 3 and Figure 5 The support member 40 is used to fix the flexible display panel 10. The support member 40 is located on the back of the flexible display panel 10. The connecting portion 12 of the flexible display panel 10 is connected to the support member 40. The connection position between the connecting portion 12 and the support member 40 can be the outer edge of the connecting portion 12 or the middle of the connecting portion 12. The connection position of the connecting portion 12 is not limited in this embodiment.

[0073] The rotating component 20 is used to change the area of ​​the display area AA of the flexible display panel 10. (See also...) Figure 3 The rotating member 20 is located between the back of the flexible display panel 10 and the supporting member 40. The edge of the rotating member 20 is a telescopic end. Along the direction close to the center of the rotating member, the telescopic end retracts inward, and the orthographic projection plane of the rotating member also contracts accordingly. Along the direction away from the center of the rotating member, the telescopic end extends outward, and the orthographic projection plane of the rotating member also expands accordingly. It should be noted that the orthographic projection plane of the rotating member is parallel to the plane where the display area AA of the flexible display panel 10 is located. Contraction means that the center of the orthographic projection of the rotating member remains unchanged, but the radius decreases; expansion means that the center of the orthographic projection of the rotating member remains unchanged, but the radius increases. The outer edge of the rotating member 20 contacts the movable display part 112 of the flexible display panel 10. As the telescopic end extends outward, the telescopic end pushes the movable display part 112 to expand outward, increasing the area of ​​the movable display part 112 in the exposed state, thereby increasing the radius of the display area AA and increasing the area of ​​the display area AA of the flexible display panel 10. As the telescopic end retracts inward, the movable display section 112, no longer supported by the telescopic end, contracts inward. The area of ​​the movable display section 112 in its exposed state decreases, thereby reducing the radius of the display area AA and the area of ​​the display area AA of the flexible display panel 10. The movable display section 112 expands and contracts uniformly in all directions from its center, causing the area of ​​the display area AA to expand and contract uniformly from its center. Because the radius changes uniformly, the area S of the display area AA also changes uniformly.

[0074] The drive component 50 provides power for the expansion or contraction of the rotating component 20. (See also...) Figure 3 One end of the driving component 50 is connected to the rotating component 20. Rotating the other end of the driving component 50 causes the driving component 50 to rotate, which in turn drives the rotating component 20 to expand or contract.

[0075] In some implementations, the centers of the flexible display panel 10, the rotating member 20, and the support member 40 are on the same straight line.

[0076] In this embodiment, the rotation of the rotating member 20 causes a change in the area of ​​the active display unit 112 that is in the exposed state. Since the center of the rotating member 20 coincides with the center of the flexible display panel 10, the rotating member 20 contracts towards the center and expands away from the center, causing the radius of the area of ​​the active display unit 112 in the exposed state to change uniformly. Consequently, the radius of the display area AA changes uniformly, causing the area S of the display area AA of the flexible display panel 10 to change uniformly. The change in the radius of the display area AA is continuous and gradual; therefore, the change in the area S of the display area AA is also continuous and gradual.

[0077] In some embodiments, see continue to see Figure 3 The rotating component 20 includes an assembly and a central turntable 22. The assembly includes a base 21, multiple connecting rods 23, and multiple telescopic rods 24. The base 21 is located between the back of the flexible panel 10 and the support member 40. One end of the connecting rod 23 is connected to one end of the telescopic rod 24, and the multiple connecting rods 23 and the multiple telescopic rods 24 constitute a telescopic component located between the base 21 and the support member 40. The central turntable 22 is located between the telescopic component and the support member 40. That is, the base 21, the telescopic component, and the central turntable 22 are stacked sequentially. The centers of the base 21, the telescopic component, and the central turntable 22 are on the same straight line L as the centers of the flexible display panel 10 and the support member 40. In some implementations, the positions of the base 21 and the central turntable 22 can be interchanged. For example, the central turntable 22, the telescopic component, and the base 21 are stacked sequentially. In still other implementations, the telescopic component, the base 21, and the central turntable 22 are stacked sequentially.

[0078] Figure 6 This is a structural diagram of a base provided for some embodiments of the present disclosure.

[0079] The base 21 has multiple circumferentially spaced grooves 211 on the side near the telescopic component. Each groove 211 is elongated and extends from the edge of the base to the center of the base 21. The grooves 211 are radially and evenly distributed on the base 21. The grooves 211 can be recesses on the surface of the base 21 or protrusions with recesses on them. Along the thickness direction of the base 21, all grooves 211 are at the same height.

[0080] Figure 7 A structural diagram of a central turntable provided for some embodiments of this disclosure. Figure 8 A front view of a central turntable provided for some embodiments of this disclosure.

[0081] See Figure 7 and Figure 8 The central turntable 22 has multiple assembly shafts 221 spaced circumferentially. The multiple assembly shafts 221 are all at the same first distance d1 from the center of the central turntable 22. The first distance d1 is the distance from the center of the cross-section of the assembly shaft 221 in the thickness direction (hereinafter referred to as the first direction) of the display component to the center of the central turntable 22. The center of the circle formed by the lines connecting the multiple assembly shafts 221 coincides with the center of the central turntable 22. The central turntable 22 is circular, but can also be other shapes, such as polygons. One end of the driving member 50 is connected to the center of the central turntable 22. The connection method can be welding or snap-fit; for example, the central turntable 21 has a snap-fit ​​222, and the end of the driving member 50 connected to the central turntable 21 snaps into the snap-fit ​​222.

[0082] Figure 9 This is a structural diagram of the rotating component in a retracted state, provided for some embodiments of this disclosure. Figure 10 This is a structural diagram of the rotating component in an unfolded state, provided for some embodiments of this disclosure.

[0083] See Figure 9 and Figure 10 In the orthographic projection of the central turntable 22 onto the plane of the base 21, multiple assembly shafts 221 are located inside multiple sliding grooves 211. One end of the connecting rod 23 (hereinafter referred to as the proximal end of the connecting rod 23, i.e., the end of the connecting rod 23 near the center of the base 21) is movably connected to the assembly shaft 221, and the proximal end of the connecting rod 23 rotates around the assembly shaft 221. The other end of the connecting rod 23 (hereinafter referred to as the distal end of the connecting rod 23, i.e., the end of the connecting rod 23 away from the center of the base 21) is movably connected to one end of the telescopic rod 24 (hereinafter referred to as the proximal end of the telescopic rod 24, i.e., the end of the telescopic rod 24 near the center of the base 21), and the distal end of the connecting rod 23 rotates around the proximal end of the telescopic rod 24. The other end of the telescopic rod (hereinafter referred to as the distal end of the telescopic rod 24, i.e., the end of the telescopic rod 24 away from the center of the base 21) contacts the movable display portion 112 of the flexible display panel 10.

[0084] Telescopic rods 24 are disposed within a groove 211, and move within the groove 211 along its extending direction. In some embodiments, multiple telescopic rods 24 are evenly spaced circumferentially, and multiple connecting rods 23 connected to the multiple telescopic rods 24 are also evenly spaced circumferentially. For example, the base 21 is divided into four parts using the two mutually perpendicular diameters of the base 21 as the first axis of symmetry L1 and the second axis of symmetry L2. The distribution of the multiple telescopic rods 24 in the four parts is axially symmetric about the first axis of symmetry L1 and the second axis of symmetry L2. Alternatively, the base 21 is fan-shaped, and the distribution of the multiple telescopic rods 24 on the base 21 is axially symmetric about the axis of symmetry of the fan shape. The distal ends of the multiple telescopic rods 24 are connected to form a first circle, the center of which and the center of the base 21 lie on the straight line L.

[0085] One end of the drive component 50 is connected to the central turntable 22. The rotation of the drive component 50 causes the central turntable 22 to rotate, and the proximal ends of the multiple connecting rods 23 rotate simultaneously with the central turntable 22, causing the distal ends of the connecting rods 23 to move in the extending direction of the slide groove 211. This, in turn, causes the multiple telescopic rods 24 to move simultaneously within the slide groove 211 along the extending direction of the slide groove 211, causing a change in the radius of the first circle. For example, see below. Figure 9 The driving component 50 drives the central turntable 21 to rotate counterclockwise in a direction R- around its center. The inward centripetal force of the central turntable 21 causes the connecting rods 23 to retract, causing their proximal ends to converge and contact each other, reaching their maximum retraction. Along the direction away from the center of the base 21, the distance between adjacent connecting rods 23 gradually increases. The retraction of the connecting rods 23 causes the proximal ends of the telescopic rods 24 to move closer to the center of the base 21, gradually decreasing the radius and area of ​​the first circle formed by the distal ends of the multiple telescopic rods 24. Again, exemplarily, see... Figure 10 The driving component 50 drives the central turntable 21 to rotate clockwise in the direction R+ around its center. The centrifugal force of the central turntable 21 causes the connecting rod 23 to expand. When the extension direction of the connecting rod 23 is on the same straight line as the extension direction of the corresponding slide groove 211, the connecting rod 23 expands to its maximum extent. As the connecting rod 23 expands, since the distal end of the connecting rod 23 is connected to the proximal end of the telescopic rod 24, the centrifugal force transmitted from the connecting rod 23 pushes the proximal end of the telescopic rod 24 to move away from the center of the base 21. The radius of the first circle formed by the distal ends of the multiple telescopic rods 24 gradually increases, and the area of ​​the first circle also gradually increases.

[0086] The expansion or contraction of the telescopic rods 23 in each part causes the radius of the display area AA of the flexible display panel 10 to change uniformly in all directions, thereby causing the area of ​​the display area AA to change uniformly in all directions, and preventing the display area AA from having different radii in different directions.

[0087] In some embodiments, the multiple connecting rods 23 are of the same length, and the multiple telescopic rods 24 are of the same length. When the central turntable 21 rotates, the rotation angle of the extension direction of each connecting rod 23 is the same, and the distance from the distal end of each connecting rod 23 to the center of the base 21 is equal, so that the distance from the proximal end of the telescopic rod 24 to the base 21 is equal. The proximal end of the telescopic rod 24 moves the same distance in the slide groove 211. Since the length of the telescopic rod 24 is the same, the distance from the distal end of the telescopic rod 24 to the center of the base 21 is equal, so that the radius of the area where the active display part 112 is exposed changes uniformly, thereby causing the radius of the display area AA to change uniformly, and causing the area S of the display area AA of the flexible display panel 10 to change uniformly.

[0088] In some embodiments, the proximal and distal ends of the connecting rod 23 are equidistant from one side surface of the base 21 along the first direction. Multiple connecting rods 23 move in the same plane parallel to the plane of the base 21, allowing the telescopic rod 24 to move smoothly within the slide groove 211. This improves the lifting effect of the telescopic rod 24 on the flexible display panel 10, enhancing its flatness. If the distances are inconsistent, the telescopic rod 24 may tilt during movement, causing the movable display portion 112 to bulge, resulting in the display area AA of the flexible display panel 10 bulging upwards and affecting the display effect.

[0089] In some embodiments, the telescopic rod 24 has a straight bar structure to facilitate movement within the groove.

[0090] In some embodiments, see continue to see Figure 10 The telescopic rod 24 includes a first part 242 and a second part 241 that are interconnected to form a T-shaped structure. The first part 242 is located inside the slide groove 211, and the second part 241 is located outside the slide groove 211 and contacts the movable display part 112. The second part 241 has a large contact area with the movable display part 112, which can fill the gap at the outer edge caused by the expansion of the straight telescopic rod and reduce the possibility of collapse of the flexible display panel. Furthermore, the second part 241 can be locked at the edge of the slide groove, so that the telescopic rod 24 has a minimum retraction distance and prevents the telescopic rod 24 from retracting excessively.

[0091] Figure 11 A front view of a display component provided for some embodiments of this disclosure. Figure 12A for Figure 11 A sectional view along section lines A1-A2. Figure 12B for Figure 11Another cross-sectional view along section lines A1-A2.

[0092] See Figure 11 The area of ​​the active display unit 112 that is exposed and the fixed display unit 111 constitute the display area AA of the flexible display panel. See also: [link to embodiments]. Figure 12A and Figure 12B The edge of the support member 40 is fixedly connected to the connecting part 12 of the flexible display panel 10, thereby fixing the flexible display panel 10 and the support member 40. Figure 12A and Figure 12B The illustration will take a connecting rod 23 and a telescopic rod 24 that are connected to each other as an example, omitting other connecting rods, telescopic rods and assembly shafts in the display assembly.

[0093] See also Figure 12A The telescopic rod 24 is not fully extended, and there is still an area of ​​the active display unit 112 that is not exposed; the active display unit 12 is not fully extended. At this time, the radius of the display area AA is the first radius R1. Along the first direction, the distance from the flexible display panel 10 to the support member 40 is the first distance T1. For example, the first distance T1 is the distance from the back of the flexible display panel 10 to the side of the support member 40 near the central turntable 22. See also... Figure 12B The drive member 50 rotates, causing the telescopic rod 24 to expand, increasing the area of ​​the movable display part 112 that is exposed. At this time, the radius of the display area AA is the second radius R2, which is greater than the first radius R1. As the telescopic rod 24 expands, the radius of the movable display part 112 increases in the second direction perpendicular to the first direction, increasing the area of ​​the movable display part 112 that is exposed. Therefore, the distance from the edge of the exposed area of ​​the movable display part 112 to the connecting part 12 decreases. Since the connecting part 12 is fixedly connected to the edge of the support member 40, the support member 40 moves along the direction closer to the central turntable 22. At this time, the distance from the flexible display panel 10 to the support member 40 is the second distance T2. The second distance T2 is the distance from the back of the flexible display panel 10 to the side of the support member 40 closer to the central turntable 22. At this time, the first distance T1 is greater than the second distance T2.

[0094] In this embodiment, the edge of the support member 40 is fixedly connected to the connection portion 12 of the flexible display panel. As the rotating member 10 expands or contracts, the distance between the flexible display panel 10 and the support member 40 changes, thereby changing the thickness of the display component.

[0095] In some embodiments, the support member 40 has a second groove on its surface near the selection member 20, and the connecting portion 12 of the flexible display panel is connected to the inner surface of the second groove. The connecting portion 12 is placed in the first slot, reducing the space occupied by the connecting portion 12 and improving the space utilization of the display component.

[0096] Figure 13 for Figure 11 Another cross-sectional view along section lines A1-A2. Figure 13 The illustration will take a connecting rod 23 and a telescopic rod 24 that are connected to each other as an example, omitting other connecting rods, telescopic rods and assembly shafts in the display assembly.

[0097] In some embodiments, the surface of the support member 40 away from the rotating member 20 is connected to the connection portion 12 of the flexible display panel, and the connection area between the connection portion 12 and the support member 40 is larger and more stable.

[0098] Figure 14 A front view of the central turntable and base mounting provided for some embodiments of this disclosure.

[0099] In some embodiments, see Figure 14 The distance d1 from the assembly shaft 221 to the center of the central turntable 22 is less than the distance d2 from the near end of the slide groove 211 to the center of the central turntable 22. This ensures that the telescopic component 24 is always connected to the assembly shaft 221 by the connecting rod 23, increasing the travel distance of the telescopic component 24 and thus allowing for a wider range of area variation in the display area AA. The connecting rod 23 rotates at an angle to the radius of the base 21, making the radial movement of the connecting rod 23 more precise. This results in more accurate movement of the telescopic rod 24, a finer range of radius variation in the display area AA, and consequently, more accurate area variation in the display area AA.

[0100] Figure 15 An exploded view of yet another display component provided for some embodiments of this disclosure.

[0101] In some embodiments, see Figure 15 The display assembly 100 also includes an elastic ring 60. The elastic ring 60 is located at the edge of the rotating member 20. Specifically, the elastic ring 60 is located at the distal end of the telescopic rod 24. When the telescopic rod 24 expands outward, the distance between the distal ends of the telescopic rods 24 increases, creating an outer edge discontinuity. The elastic ring 60 expands synchronously with the telescopic rods 24 at their distal ends. The elastic ring 60 is a single unit that can fill the outer edge discontinuity caused by the telescopic rods 24, further reducing the possibility of collapse of the flexible display panel. When the telescopic rods 24 retract inward, the elastic ring 60 recovers its elasticity to a circle with the same radius as the outer edge of the rotating member 20. The elastic ring 60 also provides buffer protection between the rotating member 20 and the flexible display panel 10 to avoid direct contact between the rotating member 20 and the flexible display panel 10, extending the service life of the display assembly 100.

[0102] Figure 16 Structural diagrams of telescopic rods provided for some embodiments of this disclosure.

[0103] In some embodiments, the end of the telescopic rod 24 that contacts the active display unit 112 is provided with a first sub-groove 71. The first sub-grooves 71 of multiple telescopic rods 24 are connected to form a first groove, and the elastic ring 60 is located in the first groove. The elastic ring 60 is stuck in the first groove, making it difficult to move and providing a more stable connection with the multiple telescopic rods 24.

[0104] Figure 17 Structural diagrams of the driving components provided for some embodiments of this disclosure. Figure 18 Structural diagrams of the bottom housing provided for some embodiments of this disclosure.

[0105] In some embodiments, see Figure 17 The driving component 50 is equipped with a structural wheel 51. (See also...) Figure 15 and Figure 18 The display assembly also includes a bottom housing 80. The bottom housing 80 is located on the side of the support member 40 away from the rotating member 20. The bottom housing 80 is provided with a locking tooth 81, and the structural wheel 51 is assembled with the locking tooth 81. The engaging force between the structural wheel 51 and the locking tooth 81 is greater than the rebound force of the elastic ring 60. When the driving member 50 drives the central turntable 22 to rotate clockwise in the R+ direction, the telescopic rod 24 expands outward, causing the elastic ring 60 to expand. At this time, the elastic ring 60 has a spring force that contracts towards the center of the rotating member 20, causing the expanded state of the telescopic rod 24 to be unstable. In order to maintain the expanded state of the rotating member 24, the structural wheel 51 and the locking tooth 81 cooperate with each other, and the structural wheel 51 is locked on the locking tooth 81 to counteract the rebound force of the elastic ring 60.

[0106] In other embodiments, the display assembly 100 may include a locking element. The locking element is adapted to limit the rotation of the drive member 50 to maintain the expansion or reduction positioning of the rotating member, thereby improving the operational stability after the flexible screen display area is positioned. The locking element includes a ratchet mechanism comprising a ratchet and a pawl. The ratchet is disposed on the drive member, and the pawl is disposed within the bottom housing. The pawl engages with the ratchet and prevents the drive member with the ratchet from rotating. The locking element also includes an unlocking switch and a resilient reset element. The unlocking switch is connected to the pawl to trigger the pawl to disengage from the ratchet, and the resilient reset element normally drives the ratchet to rotate.

[0107] One end of the driving member 50 passes through the support member 40 and connects to the rotating member 20. The driving member 50 drives the central turntable 22 to rotate, which in turn causes the support member 40 to rotate. Since the support member 40 is connected to the connecting part 12 of the flexible display panel, the rotation of the support member 40 causes the flexible display panel to rotate, and the display area of ​​the flexible display panel also rotates, affecting the user experience. To solve the problem of the support member 40 rotating, in some embodiments, see below. Figure 5 , Figure 15 and Figure 18The support member 40 is provided with an orientation hole 41. The orientation hole 41 is located at a non-central position of the support member 40. The shape of the orientation hole 41 can be circular or polygonal, and is not limited here. The bottom outer shell is provided with an orientation pin 82, which passes through the orientation hole 41. When the drive member 50 rotates, the support member 40 will not rotate under the action of the orientation pin 82. As the telescopic rod 24 expands or contracts, the support member 40 only moves along the first direction on the drive member 50, so that the display area AA of the flexible display panel 10 only expands or contracts in the plane and does not rotate.

[0108] In some embodiments, see continue to see Figure 18 The bottom housing 80 includes a base plate and side walls surrounding the base plate, and a second through hole 83 is provided therein. One end of the drive member 50 is connected to the rotating member 20, and the other end passes through the second through hole 83 and is disposed on the outer wall of the bottom housing 80, serving as a rotating handle 52. By transferring the rotating end of the drive member 50 to the outer wall of the bottom housing 80, the internal structure of the display component is not exposed, making it convenient for user operation.

[0109] Figure 19 The diagram shows the structure of a transmission screw provided for some embodiments of this disclosure. Figure 20 This is a structural diagram of a rotating screw provided for some embodiments of this disclosure.

[0110] In some embodiments, see Figure 5 , Figure 19 and Figure 20 The driving component 50 includes a transmission screw 53 and a rotating screw 54. The support component 40 has a first through hole 42 at its center, through which the transmission screw 53 passes and connects to the central turntable 22. The end of the rotating screw 54 not connected to the transmission screw 53 passes through a second through hole. The extension direction of the transmission screw 53 is a first direction, and the extension direction of the rotating screw 54 is a second direction perpendicular to the first direction. One end of the rotating screw 54 is drive-connected to the end of the transmission screw 54 furthest from the central turntable 22. This connection can be, for example, gear meshing or a hinge connection. A structural wheel 51 is mounted on the rotating screw 54; alternatively, the structural wheel 51 can also be mounted on the transmission screw 53.

[0111] In some embodiments, the wall of the first through hole is threaded, and the transmission screw 53 is threadedly connected to the first through hole.

[0112] In some embodiments, see continue to see Figure 19The transmission screw 53 also includes a first rod body 532 and a second rod body 533. The second rod body 533 is sleeved outside the first rod body 532 and can rotate relative to the first rod body 532. The second rod body 532 is connected to the central turntable 22 and does not affect the rotation of the central turntable 22. One end of the first rod body 532 is connected to the bottom outer shell 80, and the first gear 531 is disposed on the second rod body 532. The connection between the transmission screw 53 and the bottom outer shell 80 makes the transmission screw 53 more stable.

[0113] In some embodiments, see continue to see Figure 19 and Figure 20 The transmission screw 53 has a first gear 531 at one end connected to the rotating screw 54, and a second gear 541 at the other end connected to the transmission screw 53. The first gear 531 and the second gear 541 mesh. For example, the first gear 531 and the second gear 541 can be bevel gears. Rotating the rotating screw 54 causes the first gear 531 to rotate via the second gear 541, converting the longitudinal rotational force of the transmission screw 53 into the lateral rotational force of the rotating screw 54. This reduces the length of the drive member 50 along the first direction, reduces the thickness of the display assembly 100, and also improves the utilization rate of the receiving cavity of the bottom housing 80.

[0114] In some embodiments, see continue to see Figure 18 The bottom outer shell 80 is provided with a receiving cavity 84, and the rotating screw 54 is located in the receiving cavity 84. The rotating screw 54 is fixed in the receiving cavity of the bottom outer shell 80, providing mechanical support for the rotating screw 54.

[0115] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display component, characterized in that, include: A flexible display panel includes a fixed display section, a movable display section, and a connecting section arranged sequentially along a direction away from the center of the flexible display panel; The support member is located on the back of the flexible display panel and is connected to the connecting part of the flexible display panel; A rotating member is located between the flexible display panel and the support member, and the edge of the rotating member contacts the movable display portion of the flexible display panel; the rotating member is configured to retract in a direction close to the center of the rotating member to drive the movable display portion to retract; and to expand in a direction away from the center of the rotating member to drive the movable display portion to expand. as well as A driving component, connected to the rotating component, to drive the rotating component to contract or expand; The rotating component includes: A base is located between the flexible display panel and the support member; the base is provided with a plurality of sliding grooves spaced apart along the circumference; A central turntable is located between the base and the support member; the central turntable is provided with a plurality of assembly shafts spaced apart along the circumference; in the orthographic projection of the central turntable on the plane where the base is located, the plurality of assembly shafts are located inside the plurality of sliding grooves; one end of the driving member is connected to the center of the central turntable to drive the central turntable to rotate relative to the base; Multiple connecting rods, one end of which is movably connected to the assembly shaft; Multiple telescopic rods are provided within the sliding groove, and the other end of the connecting rod is movably connected to one end of the telescopic rod; the other end of the telescopic rod contacts the movable display unit.

2. The display component according to claim 1, characterized in that, The telescopic rod includes a first part and a second part that are connected to each other to form a T-shaped structure. The first part is located inside the slide groove, and the second part is located outside the slide groove and in contact with the movable display part.

3. The display component according to claim 2, characterized in that, Also includes: Elastic ring; the end of the plurality of telescopic rods that contacts the movable display part is provided with a first groove, and the elastic ring is located in the plurality of first grooves of the plurality of telescopic rods.

4. The display component according to claim 1, characterized in that, The plurality of connecting rods are of the same length; the plurality of telescopic rods are of the same length; and / or, The plurality of connecting rods are distributed at equal intervals along the circumference, and the plurality of telescopic rods are distributed at equal intervals along the circumference.

5. The display component according to any one of claims 1 to 4, characterized in that, The display assembly further includes: a bottom housing, disposed on the side of the support member away from the rotating member; The driving component includes: The transmission screw has a first through hole at the center of the support member, through which the transmission screw passes and is connected to the central turntable of the rotating member; A rotating screw is fixed to the bottom outer casing; one end of the rotating screw is connected to the end of the transmission screw away from the central turntable.

6. The display component according to claim 5, characterized in that, The transmission screw has a first gear at one end connected to the rotating screw, and the rotating screw has a second gear at the other end connected to the transmission screw. The first gear meshes with the second gear.

7. The display component according to claim 6, characterized in that, The transmission screw also includes a first rod and a second rod, the second rod being sleeved outside the first rod and capable of rotating relative to the first rod; one end of the first rod is connected to the bottom outer shell, and the first gear is disposed on the second rod.

8. The display component according to claim 5, characterized in that, The bottom outer shell is provided with locking teeth, and the rotating screw is provided with a structural wheel, which engages with the locking teeth.

9. The display component according to claim 5, characterized in that, The support member has a directional hole at its off-center location, and the bottom outer shell has a directional pin, which passes through the directional hole.

10. The display component according to claim 5, characterized in that, The bottom housing includes a base plate and a side wall surrounding the base plate, the side wall having a second through hole; the other end of the rotating screw passes through the second through hole.

11. The display component according to claim 5, characterized in that, The first through hole of the support member has a threaded wall, and the transmission screw is threadedly connected to the first through hole.

12. The display component according to claim 5, characterized in that, The bottom outer shell has a receiving cavity, and the rotating screw passes through the receiving cavity.

13. The display component according to any one of claims 1 to 4, characterized in that, The surface of the support member near the rotating member is provided with a second groove, and the connecting part is connected to the inner surface of the second groove; or, The surface of the support member away from the rotating member is connected to the connecting portion.

14. A display device, characterized in that, include: The display component as described in any one of claims 1 to 13; A circuit board, which is electrically connected to the display component.

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