Display device

Abstract

The present application proposes a display device, comprising a shell assembly, a first support member fixedly arranged with the shell assembly, a second support member slidably arranged with respect to the first support member, a transmission mechanism arranged in the shell assembly and connected with the second support member; a flexible display screen, which is laid on one side of the first support member and the second support member, and the first end of the flexible display screen is connected with the end of the second support member away from the first support member, and the second end of the flexible display screen is connected with the transmission mechanism. The present application sets a transmission mechanism on the display device to make the first support member and the second support member slide relative to each other, and to keep the movement of the same movement distance in the same time, so that the display device does not receive excessive pulling force when stretched or retracted, thereby avoiding damage to the flexible display screen and extending the service life of the display device.

Description

Technical Field

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

[0002] With the development of technology, the appearance of mobile electronic devices has changed dramatically. Flexible screens have attracted much attention due to their unique characteristics and great potential. Compared with traditional screens, flexible screens are more flexible and bendable, which can reduce the degree of accidental damage to the device and are much more durable than other screens.

[0003] Existing flexible screens include foldable and rollable displays. Although the above two types of displays reduce the size of the panel to a certain extent, they still occupy a large space.

[0004] Therefore, a flexible display device is urgently needed to solve the above technical problems. Summary of the invention

[0005] The present application provides a display device to solve the technical problem that the existing flexible screen occupies a large volume.

[0006] To solve the above problems, the technical solutions provided by this application are as follows:

[0007] The present application provides a display device, comprising:

[0008] A housing assembly, a first support member fixedly disposed with the housing assembly, a second support member slidably disposed with respect to the first support member, and a transmission mechanism disposed in the housing assembly and connected with the second support member;

[0009] A flexible display screen is laid on one side of the first supporting member and the second supporting member, and a first end of the flexible display screen is connected to an end of the second supporting member away from the first supporting member, and a second end of the flexible display screen is connected to the transmission mechanism;

[0010] When the first supporting member and the second supporting member slide relative to each other, the two ends of the flexible display screen move with the same movement distance within the same time under the action of the transmission mechanism.

[0011] In the display device of the present application, the housing assembly includes a first housing and a second housing that are arranged opposite to each other, the first housing is fixedly connected to the first supporting member, and the second housing is fixedly connected to the second supporting member;

[0012] The flexible display screen includes a first portion located on the surface of the housing component and a second portion located inside the housing component;

[0013] The transmission mechanism comprises at least one gear set and at least one screw rod located on the first housing, and a rack set located on the second housing, the gear set meshes with the rack set, and the screw rod rotates coaxially with the gear set;

[0014] When the display device is in small screen display, the first part of the flexible display screen is in display state, and the second part of the flexible display screen is in non-display state;

[0015] When the display device displays a large screen, the rack group on the second shell drives the screw to rotate through the gear group to move the second shell away from the first shell, so that the second part of the flexible display screen moves from the inside of the shell assembly to the surface of the shell assembly, and the first part and the second part of the flexible display screen are in a display state.

[0016] In the display device of the present application, the rack set includes at least one first rack, and the first rack is arranged close to the first side surface and / or the second side surface of the second housing;

[0017] When the display device is in large-screen display, the first rack drives the screw to rotate through the gear set to move the second shell away from the first shell.

[0018] In the display device of the present application, the gear set at least includes:

[0019] At least one first gear, the first gear meshing with the first rack, the first gear being located at a side of the first rack away from the flexible display screen;

[0020] At least one second gear, the first gear and the second gear rotate coaxially;

[0021] At least one first roller, the first roller passes through the first gear and the second gear, and is fixedly connected to the first gear and the second gear;

[0022] at least one third gear, the third gear meshing with the second gear, the third gear coaxially rotating with the screw;

[0023] When the display device displays a large screen, the first rack transmits the driving force to the screw through the first gear, the second gear, the third gear, and the first roller, and moves the second shell away from the first shell through the screw.

[0024] In the display device of the present application, the gear set further includes:

[0025] At least two first bearing groups, wherein the first bearing group includes two first bearings, the first bearings are located on both sides of the first roller, the first bearings are fixedly connected to the first roller, and the first gear, the second gear and the first roller rotate in the first bearings;

[0026] At least two gear brackets, one gear bracket corresponds to the first bearing group, the gear bracket is fixedly connected to the first side shell and / or the second side shell of the first shell, and the first shell and the second shell make the gear bracket have a first opening facing the front shell of the second shell.

[0027] In the display device of the present application, the first gear is a spur gear, and the second gear and the third gear are bevel gears;

[0028] Among them, when the pitch circle diameter of the first gear is A, the pitch circle diameter of the second gear is B, the pitch circle diameter of the third gear is C, and the pitch of the screw is L, the relationship between the first gear, the second gear, the third gear, and the screw is B*L=π*A*C.

[0029] In the display device of the present application, the display device further includes:

[0030] A slider, the slider being slidably connected to the screw rod;

[0031] A second roller is located at a side of the first housing away from the gear set, and the second portion of the flexible display screen extends along the second roller into the first housing and is fixedly connected to the slider;

[0032] When the display device is in large-screen display mode, an external driving force causes the second housing to move away from the first housing, and the screw drives the slider to move away from the first gear, so that the second portion of the flexible display screen moves from the first housing to the surface of the first housing;

[0033] When the display device displays a small screen, the external driving force causes the second shell to move toward the first shell, the screw drives the slider to move toward the first gear, and the flexible display screen rolls along the second roller, causing the second part of the flexible display screen to move from the surface of the first shell to the inside of the first shell, and extend toward the first gear.

[0034] In the display device of the present application, the flexible display screen includes a display panel, a stretching layer, and a bonding layer located between the display panel and the stretching layer, a first end of the stretching layer is fixedly connected to the second shell, and a second end of the stretching layer is fixedly connected to the slider;

[0035] Wherein, the area of ​​the display panel is smaller than the area of ​​the stretching layer.

[0036] In the display device of the present application, the first housing includes a rear housing, the first side housing and the second side housing located on both sides of the rear housing, the second housing includes a front housing, the first supporting member is fixedly connected to the rear housing, the first side housing and the second side housing, and the second supporting member is fixedly connected to the front housing;

[0037] The first supporting member comprises a first supporting plate, wherein the first supporting plate comprises a plurality of first supporting bars and a first socket located between two adjacent first supporting bars;

[0038] The second supporting member comprises a second supporting plate, wherein the second supporting plate comprises a plurality of second supporting bars and a second socket located between two adjacent second supporting bars;

[0039] When the display device is in a small screen display mode, the first socket is used to accommodate the second support bar, and the second socket is used to accommodate the first support bar so that the first support plate and the second support plate cooperate to support the first part of the flexible display screen;

[0040] When the display device displays a large screen, the second supporting member moves away from the first shell, the second part of the flexible display screen moves from the inside of the first shell to the surface of the first shell, the second supporting plate is separated from the first supporting plate, the second supporting member is used to support the first part of the flexible display screen, and the first supporting member is used to support the second part of the flexible display screen.

[0041] In the display device of the present application, the first supporting member further comprises a first bottom plate located on a side of the first supporting plate away from the flexible display screen, and the second supporting member further comprises a second bottom plate located on a side of the second supporting plate away from the flexible display screen;

[0042] A first gap is provided between the first bottom plate and the first support plate, and the first gap is used to accommodate the second bottom plate; or a second gap is provided between the second bottom plate and the second support plate, and the second gap is used to accommodate the first bottom plate.

[0043] In the display device of the present application, the display device further includes a lifting member for adjusting the first bottom plate and / or the second bottom plate;

[0044] When the display device is in large-screen display mode, the lifting device is used to move the first bottom plate and / or the second bottom plate toward the direction close to the flexible display screen, so that the first bottom plate and / or the second bottom plate are in contact with the corresponding support plate;

[0045] When the display device displays a small screen, the lifting device is used to move the first bottom plate and / or the second bottom plate away from the flexible display screen, so that the first bottom plate is stored between the second bottom plate and the second support plate, or the second bottom plate is stored between the first bottom plate and the first support plate.

[0046] In the display device of the present application, the display device further comprises a motor driving device located in the shell assembly, and the electrode driving device is used to drive the transmission mechanism to operate so that the display device switches between large-screen display and small-screen display.

[0047] Beneficial effects: The present application sets a transmission mechanism on the display device to enable the first supporting member and the second supporting member to slide relative to each other, and to maintain the same movement distance within the same time, so that the display device does not receive excessive pulling force when stretched or retracted, thereby avoiding damage to the flexible display screen and extending the service life of the display device; in addition, the display device can realize large-screen or small-screen display of the flexible display screen without additionally expanding the volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0049] Figure 1 A simplified structural diagram of the display device of this application;

[0050] Figure 2 An exploded view of the display device for this application;

[0051] Figure 3 This is a simplified structural diagram of the display device of this application in the pulled-out state;

[0052] Figure 4 This is a cross-sectional view of the display device of the present application in an extended state;

[0053] Figure 5 This is an enlarged view of the gear set in the display device of this application;

[0054] Figure 6 This is a simplified structural diagram of the display device of this application in a retracted state;

[0055] Figure 7 A cross-sectional view showing the display device of the present application in a retracted state;

[0056] Figure 8 This is an expanded view of the flexible display screen in the display panel of this application. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0061] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific processes and examples of materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0062] Compared with traditional screens, existing display panels are more flexible and bendable, which can reduce the degree of accidental damage to the device and are much more durable than other screens. However, although the existing display panel package reduces the size of the panel to a certain extent, it still occupies a large space. Based on the above technical problems, this application proposes the following technical solutions:

[0063] See also Figures 1 to 8 , the present application provides a display device 100, which includes:

[0064] A housing assembly 10, a first support member 13 fixedly disposed on the housing assembly 10, a second support member 14 slidably disposed relative to the first support member 31, and a transmission mechanism disposed in the housing assembly 10 and connected to the second support member 14;

[0065] A flexible display screen 20 is laid on one side of the first supporting member 13 and the second supporting member 14, and a first end of the flexible display screen 20 is connected to an end of the second supporting member 14 away from the first supporting member 13, and a second end of the flexible display screen 20 is connected to the transmission mechanism;

[0066] When the first supporting member 13 and the second supporting member 14 slide relative to each other, the two ends of the flexible display screen 20 move with the same movement distance within the same time under the action of the transmission mechanism.

[0067] The present application sets a transmission mechanism on the display device 100 to make the first support member 13 and the second support member 14 slide relative to each other, and keep the movement distance the same within the same time, so that the display device 100 can realize large-screen or small-screen display of the flexible display screen without additionally expanding the volume.

[0068] The technical solution of the present application is now described in conjunction with specific embodiments.

[0069] See also Figures 1 to 8 The shell assembly 10 may include a first shell 11 and a second shell 12 that are arranged opposite to each other, the first shell 11 is fixedly connected to the first supporting member 13, and the second shell 12 is fixedly connected to the second supporting member 14; the flexible display screen 20 may include a first part 21 located on the surface of the shell assembly 10 and a second part 22 located inside the shell assembly 10; the transmission mechanism may include at least one gear set 32 ​​and at least one screw rod 40 located on the first shell 11, and a rack set 31 located on the second shell 12, the gear set 32 ​​is meshed with the rack set 31, and the screw rod 40 rotates coaxially with the gear set 32.

[0070] When the display device 100 is displayed in a small screen, the first part 21 of the flexible display screen 20 is in a display state, and the second part 22 of the flexible display screen 20 is in a non-display state; when the display device 100 is displayed in a large screen, the rack group 31 on the second shell 12 drives the screw 40 to rotate through the gear group 32 to move the second shell 12 away from the first shell 11, so that the second part 22 of the flexible display screen 20 moves from the shell assembly 10 to the surface of the shell assembly 10, and the first part 21 and the second part 22 of the flexible display screen 20 are in a display state.

[0071] In the present application, a gear set 32, a rack set 31 and a screw 40 are arranged on the display device 100, and the screw 40 is driven to rotate by the rack set 31 and the gear set 32 ​​to move the second shell 12 away from or close to the first shell 11, so that the display device 100 can realize a large-screen or small-screen display of the flexible display screen 20 without additionally expanding the volume.

[0072] See also Figure 1The left figure is a structural diagram of the display device 100 in a retracted state, and the right figure is a structural diagram of the display device 100 in an extended state. The user applies a driving force along the first direction to the second shell 12 so that the second shell 12 moves away from the first shell 11, so that the display device 100 is in an extended state; similarly, the user can apply a driving force along the first direction opposite to the second shell 12 so that the second shell 12 moves toward the first shell 11, so that the display device 100 is in a retracted state.

[0073] In this embodiment, the first direction is the direction in which the second shell 12 is pulled open.

[0074] See also Figure 2 The first housing 11 includes a rear housing 111, a first side housing 112 and a second side housing 113 located on both sides of the rear housing 111, and the second housing 12 includes a front housing 121; the first supporting member 13 is fixedly connected to the rear housing 111, the first side housing 112, and the second side housing 113, the first side housing 112 corresponds to the first side surface of the first housing 11, and the second side housing 113 corresponds to the second side surface of the first housing 11. The second supporting member 14 is fixedly connected to the front housing 121, and the second supporting member 14 is located between the first side housing 112 and the second side housing 113.

[0075] When the display device 100 is in a large-screen display, an external driving force drives the front shell 121 to move in the first direction, so that the display device 100 is in an extended state.

[0076] In the display device 100 of the present application, the rack assembly 31 includes at least one first rack 311 , and the first rack 311 is disposed close to the first side surface and / or the second side surface of the second housing 12 .

[0077] See also Figure 2 The rack group 31 may include two first racks 311 symmetrically arranged with respect to the center line of the second supporting member 14, one of the first racks 311 being arranged close to the first side of the second supporting member 14, and the other of the first racks 311 being arranged close to the second side of the second supporting member 14, the first side of the second supporting member 14 corresponding to the first side of the second shell 12, and the second side of the second supporting member 14 corresponding to the second side of the second shell 12.

[0078] In this embodiment, the first rack 311 is attached to a side of the second supporting member 14 away from the flexible display screen 20 , and is fixedly connected to the second supporting member 14 .

[0079] See also Figures 3-4 When the display device 100 is in large-screen display, the first rack 311 drives the screw 40 to rotate through the gear set 32 ​​to move the second shell 12 away from the first shell 11.

[0080] In addition, the number of the first rack 311 and the gear set 32 ​​is not limited to two, and can be multiple. For example, between the first side and the second side of the second supporting member 14, multiple first racks 311 and corresponding gear sets 32 can be arranged at equal intervals.

[0081] In the display device 100 of the present application, the gear set 32 ​​at least includes:

[0082] At least one first gear 321, the first gear 321 is meshed with the first rack 311, and the first gear 321 is located on a side of the first rack 311 away from the flexible display screen 20;

[0083] At least one second gear 322, the first gear 321 and the second gear 322 rotate coaxially;

[0084] At least one first roller, the first roller passes through the first gear 321 and the second gear 322, and is fixedly connected to the first gear 321 and the second gear 322;

[0085] At least one third gear 323, wherein the third gear 323 is meshed with the second gear 322, and the third gear 323 rotates coaxially with the screw rod 40;

[0086] See also Figure 5 The gear set 32 ​​may include a first gear 321, a second gear 322, a first roller, and a third gear 323, the first gear 321 is meshed with the first rack 311, the first gear 321 rotates coaxially with the second gear 322 through the first roller, the third gear 323 is meshed with the second gear 322, and the third gear 323 rotates coaxially with the screw 40.

[0087] In this embodiment, the first gear 321 may be a spur gear, and the second gear 322 and the third gear 323 may be bevel gears.

[0088] In this embodiment, when the display device 100 displays a large screen, the first rack 311 transmits the driving force to the screw 40 through the first gear 321, the second gear 322, the third gear 323, and the first roller, and moves the second shell 12 away from the first shell 11 through the screw 40.

[0089] In the display device 100 of the present application, the gear set 32 ​​may further include:

[0090] At least two first bearing groups, wherein the first bearing group includes two first bearings, the first bearings are located on both sides of the first roller, the first bearings are fixedly connected to the first roller, and the first gear 321, the second gear 322 and the first roller rotate in the first bearings;

[0091] At least two gear brackets 324, one gear bracket 324 corresponds to one first bearing group, the gear bracket 324 is fixedly connected to the first side shell 112 and / or the second side shell 113 of the first shell 11, and the first shell 11 and the second shell 12 make the gear bracket 324 have a first opening facing the front shell 121 of the second shell 12.

[0092] See also Figure 5 The number of the first bearing groups and the gear brackets 324 corresponds to the number of the first gears 321 , and the gear brackets 324 are used to fix the first gears 321 and the second gears 322 through the first bearing groups.

[0093] In this embodiment, the gear bracket 324 includes a first baffle 325, a second baffle 326 and a third baffle 327. The first baffle 325 is fixedly connected to the first side housing 112 or the second side housing 113 of the first shell 11. The second baffle 326 is located between the first baffle 325 and the third baffle 327. The third gear 323 engages with the second gear 322 through the through hole on the second baffle 326. The first bearing can be located on the first baffle 325 and the third baffle 327.

[0094] In this embodiment, the structure formed by the rear shell 111 of the first shell 11, the second supporting member 14 of the second shell 12, and the first baffle 325, the second baffle 326, and the third baffle 327 enables the gear bracket 324 to have a first opening facing the front shell 121 of the second shell 12.

[0095] In this embodiment, the first bearing may be a ball bearing, a sliding bearing, etc., which is not specifically limited in this application. The first roller is fixedly connected to the inner bearing of the first bearing, and the outer bearing of the first bearing is fixedly connected to the first side housing 112, the second side housing 113 or the first baffle 325 of the first housing 11. The first roller rotates with the inner bearing of the first bearing in the outer bearing of the first bearing under the action of an external driving force.

[0096] In the display device 100 of the present application, the display device 100 may further include:

[0097] A slider 50, wherein the slider 50 is slidably connected to the screw rod 40;

[0098] The second roller 60 is located at a side of the first housing 11 away from the gear set 32 ​​, and the second portion 22 of the flexible display screen 20 extends along the second roller 60 into the first housing 11 and is fixedly connected to the slider 50 ;

[0099] See also Figure 2 The first end of the flexible display screen 20 is fixed to the front shell 121 of the second shell 12, and the second end of the flexible display screen 20 is fixed to the slider 50. When the second shell 12 moves in the first direction, the slider 50 follows the screw rod 40 to perform corresponding movement.

[0100] In this embodiment, the slider 50 is provided with a protruding structure corresponding to the thread of the screw rod 40, such as a ball, etc. When the screw rod 40 rotates, the slider 50 can reciprocate on the screw rod 40 through the protruding structure.

[0101] In this embodiment, the flexible display screen 20 extends from the outer side of the first housing 11 to the inner side of the first housing 11 through the second roller 60. The flexible display screen 20 is turned 180° by the second roller 60 and extends toward the first roller, so that one end of the flexible display screen 20 is fixedly connected to the slider 50.

[0102] See also Figures 3-4When the display device 100 displays a large screen, an external driving force causes the second shell 12 to move in a direction away from the first shell 11, and the first rack 311 causes the first roller to rotate through the first gear 321. Since the second gear 322 rotates coaxially with the first gear 321 through the first roller, the second gear 322 engages with the third gear 323, and the third gear 323 rotates coaxially with the screw 40, the first rack 311 transmits force to the screw 40, and since the screw 40 is slidably connected to the slider 50, the screw 40 rotates to drive the slider 50 to move in a direction away from the first gear 321, so that the second part 22 of the flexible display screen 20 moves from the inside of the first shell 11 to the surface of the first shell 11.

[0103] See also Figures 6-7 When the display device 100 is in a small screen display, the external driving force causes the second housing 12 to move toward the first housing 11, and the movement directions of the gear set 32, the rack set 31, and the screw 40 are the same as Figures 3-4 On the contrary, the screw rod 40 drives the slider 50 to move toward the first gear 321 , so that the second portion 22 of the flexible display screen 20 moves from the surface of the first shell 11 to the inside of the first shell 11 and extends toward the first gear 321 .

[0104] In this embodiment, when the pitch circle diameter of the first gear 321 is A, the pitch circle diameter of the second gear 322 is B, the pitch circle diameter of the third gear 323 is C, and the pitch of the screw 40 is L, the relationship between the first gear 321, the second gear 322, the third gear 323, and the screw 40 is B*L=π*A*C.

[0105] For example, when the distance moved by the second housing 12 is X, the distance moved by the first rack 311 is X. Since the first gear 321 is meshed with the first rack 311, the arc length of the rotation of the first gear 321 is X, which means that the arc of rotation of the first gear 321 is 2X / A. Secondly, since the first gear 321 rotates coaxially with the second gear 322 through the first roller, the arc of rotation of the second gear 322 is equal to that of the first gear 321, and the arc length of the corresponding rotation of the second gear 322 is (X*B) / A. Thirdly, since the third gear 323 is meshed with the second gear 322, the arc length of rotation of the third gear 323 is equal to that of the second gear 322, that is, the arc length of rotation of the third gear 323 is (X*B) / A, and the arc of rotation of the third gear 323 is (2X*B) / (A*C). Finally, since the third gear 323 rotates coaxially with the screw 40, the arc of rotation of the screw 40 is equal to the arc of the third gear 323, and from the pitch L of the screw 40, when the arc is (2X*B) / (A*C), the moving distance of the slider 50 fixedly connected to the screw 40 is (X*B*L) / (π*A*C). Since the relationship between the first gear 321, the second gear 322, the third gear 323, and the screw 40 is B*L=π*A*C, the moving distance of the slider 50 fixedly connected to the screw 40 is X, which is equal to the moving distance of the second housing 12, so that the pulling force on the display panel 201 in the display device 100 is minimized, thereby improving the service life of the display device 100.

[0106] See also Figure 8 The flexible display screen 20 may include a display panel 201, a stretching layer 203 and a bonding layer 202 located between the display panel 201 and the stretching layer 203, wherein a first end of the stretching layer 203 is fixedly connected to the second shell 12, and a second end of the stretching layer 203 is fixedly connected to the slider 50.

[0107] In this embodiment, the flexible display screen 20 also includes a third part 23 fixedly connected to the slider 50. The third part 23 of the flexible display screen 20 is fixedly connected to the slider 50. The third part 23 of the flexible display screen 20 is a non-functional area, that is, an invalid display area.

[0108] In this embodiment, the display panel 201 may be an LCD display screen or an OLED display screen. The display panel 201 may be rolled into any shape.

[0109] In this embodiment, the area of ​​the display panel 201 is smaller than the area of ​​the stretching layer 203 .

[0110] In this embodiment, the bonding layer 202 may be an adhesive layer with adhesive properties such as optical adhesive.

[0111] In this embodiment, the material of the stretching layer 203 may be a stretch-resistant SUS metal material or an amorphous material, etc. When the material of the stretching layer 203 is a SUS metal material, the thickness of the stretching layer 203 may be 25 to 35 microns.

[0112] See also Figures 2 to 7 The first support member 13 may include a first support plate 131, the first support plate 131 may include a plurality of first support bars 1311 and a first socket 1312 located between two adjacent first support bars 1311; the second support member 14 may include a second support plate 141, the second support plate 141 may include a plurality of second support bars 1411 and a second socket 1412 located between two adjacent second support bars 1411.

[0113] In this embodiment, the first support plate 131 and the second support plate 141 may be, but are not limited to, a comb-shaped structure.

[0114] See also Figures 6-7 When the display device 100 is in a small screen display mode, the first socket is used to accommodate the second support bar 1411, and the second socket 1412 is used to accommodate the first support bar 1311 so that the first support plate 131 and the second support plate 141 cooperate to support the first portion 21 of the flexible display screen 20;

[0115] See also Figures 3-4 When the display device 100 displays a large screen, the second supporting member 14 moves away from the first shell 11, the second part 22 of the flexible display screen 20 moves from the first shell 11 to the surface of the first shell 11, the second supporting plate 141 is separated from the first supporting plate 131, the second supporting member 14 is used to support the first part 21 of the flexible display screen 20, and the first supporting member 13 is used to support the second part 22 of the flexible display screen 20.

[0116] See also Figures 2 to 7 The first supporting member 13 further includes a first bottom plate 132 located on a side of the first supporting plate 131 away from the flexible display screen 20, and the second supporting member 14 further includes a second bottom plate 142 located on a side of the second supporting plate 141 away from the flexible display screen 20;

[0117] A first gap is provided between the first bottom plate 132 and the first support plate 131, and the first gap is used to accommodate the second bottom plate 142; or a second gap is provided between the second bottom plate 142 and the second support plate 141, and the second gap is used to accommodate the first bottom plate 132, which is not specifically limited in the present application.

[0118] In the display device 100 of the present application, the display device 100 further includes a lifting component for adjusting the first bottom plate 132 and / or the second bottom plate 142 .

[0119] When the display device 100 displays a large screen, the lifting device is used to move the first bottom plate 132 and / or the second bottom plate 142 toward the direction close to the flexible display screen 20, so that the first bottom plate 132 and / or the second bottom plate 142 are in contact with the corresponding support plate; when the display device 100 displays a small screen, the lifting device is used to move the first bottom plate 132 and / or the second bottom plate 142 toward the direction away from the flexible display screen 20, so that the first bottom plate 132 is stored between the second bottom plate 142 and the second support plate 141, or the second bottom plate 142 is stored between the first bottom plate 132 and the first support plate 131.

[0120] In the display device 100 of the present application, a processor, a driving chip, a power supply component, etc. may also be disposed in the housing component 10, which is not specifically limited in the present application.

[0121] In the display device 100 of the present application, a motor drive device can also be arranged in the shell assembly 10, which can control the transmission mechanism through electrical signals, and give the motor drive device certain electrical signals through buttons or gesture operations on the screen to drive the transmission mechanism to work, so that the display device 100 can switch between large-screen display and small-screen display.

[0122] The present application proposes a display device, including a shell assembly, a first support member fixedly arranged with the shell assembly, a second support member slidingly arranged with respect to the first support member, a transmission mechanism arranged in the shell assembly and connected with the second support member; a flexible display screen, which is laid on one side of the first support member and the second support member, and the first end of the flexible display screen is connected with the end of the second support member away from the first support member, and the second end of the flexible display screen is connected with the transmission mechanism. The present application sets a transmission mechanism on the display device to make the first support member and the second support member slide relative to each other, and to keep the movement of the same movement distance in the same time, so that the display device does not receive excessive pulling force when stretched or retracted, thereby avoiding damage to the flexible display screen and extending the service life of the display device; in addition, the display device can realize large-screen or small-screen display of the flexible display screen without additionally expanding the volume.

[0123] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0124] The above is a detailed introduction to a display device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, characterized in that: include: A housing assembly, a first supporting member fixedly arranged with the housing assembly, a second supporting member slidably arranged with respect to the first supporting member, and a transmission mechanism arranged in the housing assembly and connected with the second supporting member, wherein the housing assembly comprises a first housing and a second housing arranged with respect to each other, the first housing is fixedly connected with the first supporting member, and the second housing is fixedly connected with the second supporting member; A flexible display screen is laid on one side of the first supporting member and the second supporting member, and a first end of the flexible display screen is connected to an end of the second supporting member away from the first supporting member, and a second end of the flexible display screen is connected to the transmission mechanism; The transmission mechanism comprises at least one gear set and at least one screw rod located on the first housing, and a rack set located on the second housing, wherein the gear set is meshed with the rack set; Wherein, the rack set includes a first rack, the gear set includes a first gear, a second gear, a third gear and a first roller, the first gear is meshed with the first rack, the first gear and the second gear rotate coaxially, the first roller passes through the first gear and the second gear, and is fixedly connected to the first gear and the second gear, the third gear is meshed with the second gear, and the third gear rotates coaxially with the screw; When the first supporting member and the second supporting member slide relative to each other, the two ends of the flexible display screen maintain the same movement distance within the same time under the action of the transmission mechanism; When the display device displays a large screen, the first rack transmits the driving force to the screw through the first gear, the second gear, the third gear, and the first roller, and moves the second shell away from the first shell through the screw.

2. The display device according to claim 1, characterized in that The flexible display screen includes a first portion located on the surface of the housing component and a second portion located inside the housing component; When the display device is in small screen display, the first part of the flexible display screen is in display state, and the second part of the flexible display screen is in non-display state; When the display device displays a large screen, the rack group on the second shell drives the screw to rotate through the gear group to move the second shell away from the first shell, so that the second part of the flexible display screen moves from the inside of the shell assembly to the surface of the shell assembly, and the first part and the second part of the flexible display screen are in a display state.

3. The display device according to claim 2, characterized in that The first rack is arranged close to the first side surface and / or the second side surface of the second housing; When the display device is in large-screen display, the first rack drives the screw to rotate through the gear set to move the second shell away from the first shell.

4. The display device according to claim 3, characterized in that The gear set also includes: At least two first bearing groups, wherein the first bearing group includes two first bearings, the first bearings are located on both sides of the first roller, the first bearings are fixedly connected to the first roller, and the first gear, the second gear and the first roller rotate in the first bearings; At least two gear brackets, one gear bracket corresponds to the first bearing group, the gear bracket is fixedly connected to the first side shell and / or the second side shell of the first shell, and the first shell and the second shell make the gear bracket have a first opening facing the front shell of the second shell.

5. The display device according to claim 3, characterized in that: The first gear is a spur gear, and the second gear and the third gear are bevel gears; Among them, when the pitch circle diameter of the first gear is A, the pitch circle diameter of the second gear is B, the pitch circle diameter of the third gear is C, and the pitch of the screw is L, the relationship between the first gear, the second gear, the third gear, and the screw is B*L=π*A*C.

6. The display device according to claim 3, characterized in that: The display device further includes: A slider, the slider being slidably connected to the screw rod; A second roller is located at a side of the first housing away from the gear set, and the second portion of the flexible display screen extends along the second roller into the first housing and is fixedly connected to the slider; When the display device is in large-screen display mode, an external driving force causes the second housing to move away from the first housing, and the screw drives the slider to move away from the first gear, so that the second portion of the flexible display screen moves from the first housing to the surface of the first housing; When the display device displays a small screen, the external driving force causes the second shell to move toward the first shell, the screw drives the slider to move toward the first gear, and the flexible display screen rolls along the second roller, causing the second part of the flexible display screen to move from the surface of the first shell to the inside of the first shell, and extend toward the first gear.

7. The display device according to claim 6, characterized in that: The flexible display screen comprises a display panel, a stretching layer, and a bonding layer between the display panel and the stretching layer, wherein a first end of the stretching layer is fixedly connected to the second housing, and a second end of the stretching layer is fixedly connected to the slider; Wherein, the area of ​​the display panel is smaller than the area of ​​the stretching layer.

8. The display device according to claim 3, characterized in that: The first housing includes a rear housing, the first side housing and the second side housing located on both sides of the rear housing, the second housing includes a front housing, the first supporting member is fixedly connected to the rear housing, the first side housing and the second side housing, and the second supporting member is fixedly connected to the front housing; The first supporting member comprises a first supporting plate, wherein the first supporting plate comprises a plurality of first supporting bars and a first socket located between two adjacent first supporting bars; The second supporting member comprises a second supporting plate, wherein the second supporting plate comprises a plurality of second supporting bars and a second socket located between two adjacent second supporting bars; When the display device is in a small screen display mode, the first socket is used to accommodate the second support bar, and the second socket is used to accommodate the first support bar so that the first support plate and the second support plate cooperate to support the first part of the flexible display screen; When the display device displays a large screen, the second supporting member moves away from the first shell, the second part of the flexible display screen moves from the inside of the first shell to the surface of the first shell, the second supporting plate is separated from the first supporting plate, the second supporting member is used to support the first part of the flexible display screen, and the first supporting member is used to support the second part of the flexible display screen.

9. The display device according to claim 8, characterized in that: The first supporting member further comprises a first bottom plate located at a side of the first supporting plate away from the flexible display screen, and the second supporting member further comprises a second bottom plate located at a side of the second supporting plate away from the flexible display screen; A first gap is provided between the first bottom plate and the first support plate, and the first gap is used to accommodate the second bottom plate; or a second gap is provided between the second bottom plate and the second support plate, and the second gap is used to accommodate the first bottom plate.

10. The display device according to claim 9, characterized in that: The display device further comprises a lifting device for adjusting the first bottom plate and / or the second bottom plate; When the display device is in large-screen display mode, the lifting device is used to move the first bottom plate and / or the second bottom plate toward the direction close to the flexible display screen, so that the first bottom plate and / or the second bottom plate are in contact with the corresponding support plate; When the display device displays a small screen, the lifting device is used to move the first bottom plate and / or the second bottom plate away from the flexible display screen, so that the first bottom plate is stored between the second bottom plate and the second support plate, or the second bottom plate is stored between the first bottom plate and the first support plate.

11. The display device according to claim 2, characterized in that: The display device further comprises a motor driving device located in the housing assembly, and the motor driving device is used to drive the transmission mechanism to operate so that the display device switches between large-screen display and small-screen display.

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