Display device

Abstract

The utility model discloses a display device, and belongs to the technical field of display. The display device comprises a supporting seat, a reel, a flexible display panel and a circuit board. The reel can be provided with a second containing cavity and a second opening, a circuit board in the display device can be located in the second containing cavity of the reel, and the side, away from the rollable display part, of the non-display part in the flexible display panel can stretch into the second containing cavity through the second opening of the reel. And the circuit board is electrically connected with the circuit board in the second accommodating cavity. Therefore, the circuit board has a proper placement position, and the reliability of the connection between the non-display part and the circuit board is ensured.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device. Background Technology

[0002] With the development of display technology, while pursuing large-area displays, users also have higher requirements for the portability of display devices. The application of rollable displays in display devices allows them to have a large display area when unfolded and a minimal carrying volume when rolled up, resulting in a better user experience.

[0003] To enable the rollable display to be rolled up and down, the display device needs to be equipped with a drive mechanism to move the rollable display, allowing it to unfold or retract. Rollable displays are typically wound onto a reel.

[0004] However, the end of the rollable display needs to be connected to a circuit board, which has a certain degree of rigidity. The circuit board cannot be rolled up on a spool, and there is no suitable place for the circuit board. Utility Model Content

[0005] This application provides a display device. It solves the problem in the prior art where there is no suitable placement for the circuit board connected to a rollable display screen. The technical solution is as follows:

[0006] On one hand, a display device is provided, including: a support base, a scroll, a flexible display panel, and a circuit board;

[0007] The support has a first receiving cavity and a first opening communicating with the first receiving cavity;

[0008] The reel is installed within the support base; the reel has a second receiving cavity and a second opening communicating with the second receiving cavity;

[0009] The flexible display panel includes: a flat display portion, a rollable display portion, and a non-display portion connected in sequence; the flat display portion can extend out of the first receiving cavity through the first opening, the rollable display portion can be wound around the scroll, and the non-display portion can extend into the second receiving cavity through the second opening;

[0010] The circuit board is located within the second receiving cavity, and the circuit board is connected to the side of the non-display portion opposite to the rollable display portion.

[0011] Optionally, the second receiving cavity includes: a main receiving cavity and a communicating channel, wherein the main receiving cavity is connected to one end of the communicating channel, and the other end of the communicating channel is connected to the second opening;

[0012] The circuit board is located within the main receiving cavity, and at least a portion of the non-display portion is located within the communicating channel.

[0013] Optionally, the first roll shell and the second roll shell are fastened together, the support platform is located in the area enclosed by the first roll shell and the second roll shell, and the support platform is connected to the first roll shell;

[0014] The support platform and the first roll shell are used to form the main receiving cavity, and the circuit board is connected to the support platform inside the main receiving cavity; the support platform and the second roll shell are used to form the communicating channel.

[0015] Optionally, the support platform has a support surface and a first curved surface that are disposed opposite to each other;

[0016] The side of the first roll shell facing the support platform is a second curved surface;

[0017] The side of the second roll shell facing the support platform is a third curved surface;

[0018] The main receiving cavity is located between the bearing surface and the second curved surface, and the bearing surface is used to support the circuit board; the connecting channel is located between the first curved surface and the third curved surface.

[0019] Optionally, the support platform includes: a support platform body and a first connecting part. The support platform body has a support surface and a first curved surface that are disposed opposite to each other. The first connecting part is fixedly connected to the support platform body on the support surface. The side of the first connecting part away from the support platform is fixedly connected to the first roll shell.

[0020] The first connecting portion, the bearing surface, and the second curved surface are used to form the main receiving cavity, and the second opening is located on the side of the first connecting portion away from the main receiving cavity.

[0021] Optionally, the side of the first connecting portion facing away from the main receiving cavity is a fourth curved surface; the side of the first scroll shell facing away from the second curved surface is a fifth curved surface; and the side of the second scroll shell facing away from the third curved surface is a sixth curved surface.

[0022] The fourth, fifth, and sixth curved surfaces are sequentially tangentially connected, and the outer surface of the scroll includes the fourth, fifth, and sixth curved surfaces; the non-display portion includes a first portion located within the communicating channel, and a second portion extending through the second opening and wound around the outer surface of the scroll.

[0023] Optionally, the second portion is wound around the outer surface of the spool at least once, and the rollable display portion is wound around the second portion.

[0024] Optionally, the first connecting portion has at least two first connecting blocks on the side facing the first reel shell, and the first reel shell has at least two second connecting blocks on the side facing the first connecting portion, wherein the at least two first connecting blocks are correspondingly connected to the at least two second connecting blocks;

[0025] Wherein, the at least two first connecting blocks are located on both sides of the first connecting portion in a first direction; the first direction is parallel to the axis of the scroll.

[0026] Optionally, the support platform body has two third connecting blocks on the side away from the first connecting part in the second direction, and the second roll shell has two fourth connecting blocks on the side facing the first connecting part in the second direction; the two third connecting blocks are correspondingly connected to the two fourth connecting blocks; the second direction intersects the first direction and is parallel to the supported surface;

[0027] The two third connecting blocks are located on both sides of the support platform body in the first direction, and the flexible display panel is located between the two third connecting blocks in the first direction.

[0028] Optionally, the first reel shell has at least one first fastening member on the side opposite to the first connecting portion in the second direction, and the first reel shell also has at least one second fastening member on the side facing the first connecting portion in the second direction; the at least one first fastening member and the at least one second fastening member are correspondingly fastened together.

[0029] In the first direction, at least one second fastening member is distributed between the two fourth connecting blocks.

[0030] Optionally, the display device further includes: a flexible circuit section; one end of the flexible circuit section is electrically connected to the non-display portion, and the other end is electrically connected to the circuit board;

[0031] The flexible circuit section is located within the connecting channel, and the non-display portion, on the side opposite to the rollable display portion, passes through the second opening and is located within the connecting channel.

[0032] Optionally, the display device further includes: at least two support members, the at least two support members being arranged separately in a first direction, the first direction being parallel to the axis of the scroll;

[0033] At least a portion of the support member is located within the first receiving cavity, and the portion of the support member extending outside the first receiving cavity is a rigid rod.

[0034] The rigid rod is fixedly connected at one end away from the support base to the side of the flat display portion away from the support base.

[0035] Optionally, the support member includes two chains arranged in the first direction;

[0036] At least a portion of the chain located within the first receiving cavity is a chain separation portion, and a portion of the chain extending outside the first receiving cavity is a chain engagement portion; two of the chain engagement portions of the two chains engage to form the rigid rod; two of the chain separation portions of the two chains are separated, and the two chain separation portions are respectively arranged on both sides of the rigid rod in the first direction.

[0037] Optionally, the extension direction of the rigid rod is parallel to a third direction, which is parallel to the planar display portion and intersects with the first direction;

[0038] The chain separation section is slidably connected to the support base within the first receiving cavity.

[0039] Optionally, the interior of the first receiving cavity has multiple storage tracks, and one support member corresponds to two of the storage tracks;

[0040] In the first direction, for one support member and two corresponding storage tracks, the two storage tracks are respectively located on both sides of the rigid rod; and the two storage tracks are respectively slidably connected to two chain separation parts of the two chains;

[0041] The storage track includes at least a first linear track, wherein the extension direction of the first linear track is parallel to the first direction.

[0042] Optionally, the storage track further includes: a second linear track and a third linear track;

[0043] The extension direction of the second linear track is parallel to the extension direction of the first linear track, and the extension direction of the third linear track is parallel to the third linear track; one end of the third linear track is connected to the end of the first linear track away from the rigid rod, and the other end of the third linear track is connected to the end of the second linear track away from the rigid rod.

[0044] Optionally, the storage track further includes: a fourth linear track, a fifth linear track, and a sixth linear track;

[0045] The fourth straight track extends parallel to the first direction, and the fourth straight track is located between the first straight track and the second straight track in the third direction.

[0046] The fifth linear track extends parallel to the third direction, and the fifth linear track is located between the third linear track and the rigid rod in the first direction;

[0047] The extension direction of the sixth straight track intersects the first direction and the third direction;

[0048] Wherein, one end of the sixth linear track is connected to the end of the second linear track facing the rigid rod, and the other end is connected to the end of the fifth linear track facing the first linear track; the end of the fifth linear track facing the second linear track is connected to the end of the fourth linear track facing the third linear track.

[0049] Optionally, the display device further includes: a plurality of drive gears, with one support member corresponding to two of the drive gears;

[0050] Specifically, for one support member and two corresponding drive gears, the two drive gears respectively mesh with the two chains. For any one of the two drive gears and the chain meshing with the drive gear, the drive gear is located at the intersection of the chain meshing part and the chain separating part in the chain, and the drive gear meshes with both the chain meshing part and the chain separating part.

[0051] Optionally, the display device further includes: a transmission assembly, a tensioning assembly, and a first drive motor; the first drive motor has an output shaft; a first end of the tensioning assembly is connected to the output shaft, a second end of the tensioning assembly is connected to the transmission assembly, and an end of the transmission assembly opposite to the tensioning assembly is connected to the end of the reel;

[0052] During the unfolding of the flexible display panel, the spool rotates about a first rotation direction, and the tensioning component has a tensioning force about a second rotation direction; during the winding of the flexible display panel, the spool rotates about the second rotation direction, and the tensioning component has a tensioning force about the second rotation direction; the first rotation direction and the second rotation direction are opposite.

[0053] The first drive motor is configured to: drive the tensioning component to rotate around the first rotation direction during the unfolding of the flexible display panel, and drive the tensioning component to rotate around the second rotation direction during the winding of the flexible display panel, so that the tension force provided by the tensioning component is maintained within a preset range.

[0054] Optionally, the display device further includes: a sleeve; the transmission assembly includes: a transmission rod and a transition mechanism;

[0055] The sleeve is connected to the output shaft, and the sleeve is sleeved on one end of the transmission rod and rotatably connected to the transmission rod; the end of the transmission rod away from the sleeve is connected to the reel through the transition mechanism.

[0056] The tensioning assembly is sleeved on the transmission rod, and the first end of the tensioning assembly is connected to the sleeve, while the second end of the tensioning assembly is connected to the end of the transmission rod away from the sleeve.

[0057] The beneficial effects of the technical solutions provided in this application include at least the following:

[0058] The scroll may have a second receiving cavity and a second opening. The circuit board in the display device may be located within the second receiving cavity of the scroll. The non-display portion of the flexible display panel, facing away from the rollable display portion, can extend into the second receiving cavity through the second opening of the scroll to electrically connect with the circuit board located within the second receiving cavity. In this way, the circuit board has a suitable placement position, ensuring the reliability of the connection between the non-display portion and the circuit board. Attached Figure Description

[0059] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0060] Figure 1 This is a schematic diagram of the front structure of a display device provided in an embodiment of this application;

[0061] Figure 2 This is a schematic diagram of the front structure of another display device provided in an embodiment of this application;

[0062] Figure 3 This is a schematic diagram of the structure of a scroll, circuit board and non-display part provided in an embodiment of this application;

[0063] Figure 4This is a schematic diagram of the structure of a display device in a retracted state according to an embodiment of this application;

[0064] Figure 5 This is a side cross-sectional view of a scroll provided in an embodiment of this application;

[0065] Figure 6 This is a schematic diagram illustrating the connection between a rollable display portion, a non-display portion, and a circuit board, provided in an embodiment of this application.

[0066] Figure 7 This is a schematic diagram illustrating the connection between a flexible display panel and a circuit board according to an embodiment of this application;

[0067] Figure 8 This is a side cross-sectional view of another type of reel provided in an embodiment of this application;

[0068] Figure 9 This is a schematic diagram of another structure of the scroll, circuit board and non-display part provided in an embodiment of this application;

[0069] Figure 10 This is a side cross-sectional view of another type of scroll provided in the embodiments of this application;

[0070] Figure 11 This is a schematic diagram of another structure of the scroll, circuit board and non-display part provided in the embodiments of this application;

[0071] Figure 12 This is another schematic diagram showing the connection between the rollable display portion, the non-display portion, and the circuit board provided in an embodiment of this application;

[0072] Figure 13 This is an exploded view of a scroll provided in an embodiment of this application;

[0073] Figure 14 This is a side view of a scroll provided in an embodiment of this application;

[0074] Figure 15 This is an exploded view of another type of scroll provided in an embodiment of this application;

[0075] Figure 16 This is a schematic diagram of the rear structure of a display device provided in an embodiment of this application;

[0076] Figure 17 This is a schematic diagram of the rear structure of another display device provided in an embodiment of this application;

[0077] Figure 18 This is a schematic diagram of the rear structure of another display device provided in this application example;

[0078] Figure 19This is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0079] Figure 20 This is a schematic diagram of a partial structure of a display device provided in an embodiment of this application;

[0080] Figure 21 This is a schematic diagram of the structure of a first drive motor provided in an embodiment of this application;

[0081] Figure 22 This is a cross-sectional view of a partial structure of a display device provided in an embodiment of this application;

[0082] Figure 23 This is an exploded view of a partial structure of a display device provided in an embodiment of this application. Detailed Implementation

[0083] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0084] This application provides a display device, which can be a rollable television, a rollable monitor, or a rollable mobile phone, or a rollable vehicle-mounted display installed in a vehicle. This application does not limit the scope of the application to this specific device.

[0085] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the front structure of a display device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the front structure of another display device provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of a scroll, circuit board, and non-display portion provided in an embodiment of this application. The display device may include: a support base 100, a scroll 200, a flexible display panel 300, and a circuit board 400. The support base 100 in the display device may have a first receiving cavity K1 and a first opening O1 communicating with the first receiving cavity K1.

[0086] Here, the display device can have an unfolded state and a retracted state. When the display device is in the unfolded state, at least a portion of the flexible display panel 300 can extend and unfold from the first receiving cavity K1 of the support base 100 through the first opening O1 of the support base 100; when the display device is in the retracted state, please refer to... Figure 4 , Figure 4 This is a schematic diagram of the structure of a display device in a retracted state according to an embodiment of this application, wherein at least a portion of the flexible display panel 300 can retract into the first receiving cavity K1 of the support base 100.

[0087] likeFigure 2 , Figure 3 and Figure 5 As shown, Figure 5 This is a side cross-sectional view of a scroll provided in an embodiment of this application. The scroll 200 in the display device can be installed in the first receiving cavity K1 of the support base 100. The scroll 200 in the display device may have a second receiving cavity K2 and a second opening O2 communicating with the second receiving cavity K2.

[0088] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, Figure 6 This is a schematic diagram illustrating the connection between a rollable display portion, a non-display portion, and a circuit board, provided in an embodiment of this application. Figure 7 This is a schematic diagram illustrating the connection between a flexible display panel and a circuit board according to an embodiment of this application. The flexible display panel 300 may include: a flat display portion 301, a rollable display portion 302, and a non-display portion 303 connected in sequence. The flat display portion 301 of the flexible display panel 300 can extend out of the first receiving cavity K1 through the first opening O1 of the support base 100. The rollable display portion 302 of the flexible display panel 300 can be wound around a scroll 200. The non-display portion 303 of the flexible display panel 300 can extend into the second receiving cavity K2 of the scroll 200 through the second opening O2 of the scroll 200.

[0089] When the flexible display panel 300 in the display device is not needed for image display, the flat display portion 301 of the flexible display panel 300 can be completely rolled back into the first receiving cavity K1 of the support base 100, so that a portion of the flexible display panel 300 can be wound onto the scroll 200. The flexible display panel 300 wound onto the scroll 200 is the rollable display portion 302. In this case, the display device can be in a retracted state, and the overall volume of the display device is the same as the volume of the support base 100 in the display device. Thus, when the flexible display panel 300 in the display device is not needed for image display, the display device can have a smaller size for easy carrying.

[0090] When the flexible display panel 300 in the display device needs to display an image, the rollable display portion 302 of the flexible display panel 300, which is wound on the scroll 200, can be unfolded outwards and unfolded through the first opening O1 of the support base 100 into a flat display portion 301 extending out of the first receiving cavity K1. It should be noted that when the rollable display portion 302 is unfolded to its maximum extent, the display area of ​​the flat display portion 302 extending out of the first receiving cavity K1 is at its maximum. In this case, the display device can be in the unfolded state, allowing the display device to display an image through the flat display portion 302 extending out of the first receiving cavity K1, thereby enabling the display function of the display device to be used normally.

[0091] The circuit board 400 in the display device can be located within the second receiving cavity K2 of the roll 200, and the circuit board 400 can be connected to the side of the non-display portion 303 opposite to the rollable display portion 302. That is, the side of the non-display portion 303 opposite to the rollable display portion 302 can extend into the second receiving cavity K2 of the roll 200 through the second opening O2 of the roll 200 to be electrically connected to the circuit board 400 located in the second receiving cavity K2.

[0092] In this application, the scroll 200 may have a second receiving cavity K2 and a second opening O2. The circuit board 400 in the display device may be located within the second receiving cavity K2 of the scroll 200. The non-display portion 303 of the flexible display panel 300, on the side facing away from the rollable display portion 302, can extend into the second receiving cavity K2 through the second opening O2 of the scroll 200 to electrically connect with the circuit board 400 located within the second receiving cavity K2. In this way, the circuit board 400 has a suitable placement position, ensuring the reliability of the connection between the non-display portion 303 and the circuit board 400.

[0093] In summary, this application provides a display device including a support base, a scroll, a flexible display panel, and a circuit board. The scroll may have a second receiving cavity and a second opening. The circuit board in the display device can be located within the second receiving cavity of the scroll. The non-display portion of the flexible display panel, facing away from the rollable display portion, can extend through the second opening of the scroll into the second receiving cavity to electrically connect with the circuit board located within the second receiving cavity. This ensures a suitable placement of the circuit board, guaranteeing the reliability of the connection between the non-display portion and the circuit board.

[0094] Optional, such as Figure 8 and Figure 9 As shown, Figure 8 This is a side cross-sectional view of another type of reel provided in an embodiment of this application. Figure 9This is a schematic diagram of another structure of the scroll, circuit board, and non-display portion provided in this application embodiment. The second receiving cavity K2 of the scroll 200 may include a main receiving cavity K21 and a connecting channel K22. The main receiving cavity K21 of the second receiving cavity K2 may be connected to one end of the connecting channel K22, and the other end of the connecting channel K22 may be connected to the second opening O2 of the scroll 200. The circuit board 400 may be located within the main receiving cavity K21, and at least a portion of the non-display portion 303 may be located within the connecting channel K22. Thus, the side of the non-display portion 303 facing away from the rollable display portion 302 can extend into the connecting channel K22 through the second opening O2, and then be electrically connected to the circuit board 400 located within the main receiving cavity K21 through the connecting channel K22.

[0095] Optional, such as Figure 8 and Figure 9 As shown, the scroll 200 in the display device may include: a support platform 201, a first scroll housing 202, and a second scroll housing 203. The first scroll housing 202 and the second scroll housing 203 are interlocked within the scroll 200. The support platform 201 can be located within the area enclosed by the first scroll housing 202 and the second scroll housing 203, and the support platform 201 can be connected to the first scroll housing 202. The support platform 201 and the first scroll housing 202 can form a main receiving cavity K21, and the circuit board 400 can be connected to the support platform 201 within the main receiving cavity K21. The support platform 201 and the second scroll housing 203 can be used to form a connecting channel K22.

[0096] Optional, such as Figure 8 As shown, the support platform 201 in the reel 200 may have a support surface P1 and a first curved surface P2 arranged opposite to each other. The side of the first reel shell 202 in the reel 200 facing the support platform 201 may be a second curved surface P3. The side of the second reel shell 203 in the reel 200 facing the support platform 201 may be a third curved surface P4. The main receiving cavity K21 may be located between the support surface P1 of the support platform 201 and the second curved surface P3 of the first reel shell 202. The support surface P1 of the support platform 201 may be used to support the circuit board 400; that is, the circuit board 400 may be fixedly connected to the support platform 201 on the support surface P1. The connecting channel K22 may be located between the first curved surface P2 of the support platform 201 and the third curved surface P4 of the second reel shell 203.

[0097] Optional, such as Figure 8 and Figure 10 As shown, Figure 10This is a side cross-sectional view of another type of reel provided in this application embodiment. The support platform 201 in the reel 200 may include a support platform body 2011 and a first connecting portion 2012. The support platform body 2011 may have a support surface P1 and a first curved surface P2 disposed opposite to each other. The first connecting portion 2012 may be fixedly connected to the support platform body 2011 on the support surface P1, and the side of the first connecting portion 2012 away from the support platform 2011 may be fixedly connected to the first reel shell 202. The first connecting portion 2012, the support surface P1 of the support platform 2011, and the second curved surface P3 of the first reel shell 202 may be used to form a main receiving cavity K21, and the second opening O2 may be located on the side of the first connecting portion 2012 away from the main receiving cavity K21.

[0098] Optional, such as Figure 10 As shown, the side of the first connecting portion 2012 facing away from the main receiving cavity K21 can be a fourth curved surface P5, the side of the first scroll shell 202 facing away from the second curved surface P3 can be a fifth curved surface P6, and the side of the second scroll shell 203 facing away from the third curved surface P4 can be a sixth curved surface P7. Furthermore, the fourth curved surface P5 of the first connecting portion 2012, the fifth curved surface P6 of the second scroll shell 203, and the sixth curved surface P7 of the third scroll shell 203 can be sequentially and tangentially connected, thus ensuring a smooth transition between the fourth curved surface P5 and the fifth curved surface P6, as well as between the fifth curved surface P6 and the sixth curved surface P7. Here, the outer surface of the scroll 200 can include: the fourth curved surface P5, the fifth curved surface P6, and the sixth curved surface P7. The sequential tangential connection of the fourth curved surface P5, the fifth curved surface P6, and the sixth curved surface P7 ensures that there are no sharp protrusions or depressions on the outer surface of the scroll 200.

[0099] Optional, such as Figure 10 and Figure 11 As shown, Figure 11 This is a schematic diagram of another structure of a scroll, circuit board and non-display part provided in the embodiments of this application. The non-display part 303 in the flexible display panel 300 may include: a first part 3031 located in the communication channel K22, and a second part 3032 extending through the second opening O2 and wound around the outer side of the scroll 200.

[0100] That is, the first part 3031 of the non-display portion 303 can be located between the first curved surface P1 of the support platform body 2011 and the third curved surface P4 of the second scroll shell 203, and the second part 3032 of the non-display portion 303 can be wound around the fourth curved surface P5 of the first connecting part 2012, the fifth curved surface P6 of the first scroll shell 202, and the sixth curved surface P7 of the second scroll shell 203. Here, the fourth curved surface P5, the fifth curved surface P6, and the sixth curved surface P7 are sequentially tangentially connected so that there are no sharp protrusions or depressions on the outer surface of the scroll 200, which can ensure the reliability of the sliding of the second part 3032 of the non-display portion 303 within the connecting channel K22.

[0101] Optional, such as Figure 11 As shown, the second portion 3032 of the non-display portion 303 can be wound around the outer surface of the reel 200 at least once, and the rollable display portion 302 can be wound around the second portion 3032 of the non-display portion 303. For example, the second portion 3032 of the non-display portion 303 can be wound around the outer surface of the reel 200 once. Thus, the side of the second reel housing 203 facing away from the first connecting portion 2012 at the second opening O2 is the connection point between the second portion 3032 of the non-display portion 303 and the rollable display portion 302.

[0102] It should be noted that during the unfolding or retraction of the display device, the first portion 3031 of the non-display portion 303 remains within the communicating channel K22. When the display device is in the retracted state, the flexible display panel 300 does not have a flat display portion 301; all other portions of the flexible display panel 300 except for the non-display portion 303 are wrapped around the second portion 3032 of the non-display portion 303. During the unfolding of the display device, the rollable display portion 302 wrapped around the second portion 3032 of the non-display portion 303 can gradually unfold and continuously extend through the first opening O1 to the outside of the first receiving cavity K1 to form the flat display portion 301.

[0103] When the display device is in its fully unfolded state, the flexible display panel 300 no longer contains the rollable display portion 302 that is wound around the second portion 3032 of the non-display portion 303. In one possibility, the second portion 3032 of the non-display portion 303 is still wound around the outer surface of the roll 200 once. In another possibility, the second portion 3032 of the non-display portion 303 is no longer wound around the outer surface of the roll 200 at all. In yet another possibility, a portion of the second portion 3032 of the non-display portion 303 is still wound around the outer surface of the roll 200.

[0104] It should be noted that when the display device is in the fully unfolded state, the winding of the second portion 3032 of the non-display portion 303 onto the outer side of the scroll 200 depends on the display area of ​​the planar display portion 301 in the flexible display panel 300, which is determined during the design phase. This application embodiment does not specifically limit this aspect.

[0105] In this application, the bearing surface P1 of the bearing platform body 2011 in the bearing platform 201 can be a plane, and the first curved surface P2 of the bearing platform body 2011 can be a continuous arc surface, and the arc angle of the arc surface can be 180°. Thus, the bearing platform body 2011 can be a semi-cylindrical structure. The fourth curved surface P5 of the first connecting part 2012 in the bearing platform 201 can also be a continuous arc surface, and the fourth curved surface P5 can be tangentially connected to the first curved surface P2.

[0106] The second roll shell 203 has a second curved surface P3 and a fifth curved surface P6 arranged opposite to each other. Both the second curved surface P3 and the fifth curved surface P6 can be continuous arc surfaces. The second roll shell 203 can be an arc shell with a certain thickness formed by the second curved surface P3 and the fifth curved surface P6.

[0107] The third scroll shell 203 has a third curved surface P4 and a sixth curved surface P7 arranged opposite to each other. Both the third curved surface P4 and the sixth curved surface P7 can be continuous arc surfaces. The third scroll shell 203 can be an arc shell with a certain thickness formed by the third curved surface P4 and the sixth curved surface P7.

[0108] Here, the fourth surface P5, the fifth surface P6, and the sixth surface P7 are connected tangentially in sequence. The second surface P3 and the third surface P4 can also be connected tangentially to achieve a smooth transition between the second surface P3 and the third surface P4, ensuring that there are no sharp protrusions or depressions at the connection between the second surface P3 and the third surface P4.

[0109] Optional, such as Figure 11 and Figure 12 As shown, Figure 12 This is another schematic diagram showing the connection between the rollable display portion, the non-display portion, and the circuit board provided in this application embodiment. The display device may further include a flexible circuit board 500. One end of the flexible circuit board 500 can be electrically connected to the non-display portion 303, and the other end can be electrically connected to the circuit board 400. That is, the end of the non-display portion 303 facing away from the rollable display portion 302 can be electrically connected to the circuit board 400 through the flexible circuit board 500. The flexible circuit board 500 can be located within the communication channel K22 of the roll 200, and the side of the non-display portion 303 facing away from the rollable display portion 302 can pass through the second opening O2 and be located within the communication channel K22.

[0110] Specifically, the first portion 3031 of the non-display portion 303, located within the connecting channel K22, can be electrically connected to the circuit board 400 via the flexible circuit board 500. One end of the second portion 3032 of the non-display portion 303 can be connected to the first portion 3031, and the other end can pass through the second opening O2 and be connected to the rollable display portion 302.

[0111] It should be noted that the second curved surface P3 and the third curved surface P4 are also tangentially connected to ensure that there are no sharp protrusions or depressions at the connection between the second curved surface P3 and the third curved surface P4. This can prevent the flexible circuit board 500 located in the connecting channel K22 from getting tangled at the connection between the second curved surface P3 and the third curved surface P4, thereby ensuring the reliability of the connection between the two ends of the flexible circuit board 500 and the non-display part 303 and the circuit board 400, respectively.

[0112] In this application, as Figure 7 and Figure 12 As shown, the display device may further include a plurality of support bars 1300. The plurality of support bars in the display device can be fixed to the side of the flat display portion 301 and the rollable display portion 302 facing away from the display surface to support the flat display portion 301 and the rollable display portion 302. Here, the extending direction of the support bars 1300 in the display device can be parallel to the first direction X, and the plurality of support bars 1300 can be arranged in an array in the third direction Z.

[0113] Optional, please refer to Figure 13 and Figure 14 , Figure 13 This is an exploded view of a scroll provided in an embodiment of this application. Figure 14 This is a side view of a reel provided in an embodiment of this application. The first connecting portion 2012 in the support platform 201 may have at least two first connecting blocks 2013 on the side facing the first reel shell 202, and the first reel shell 202 may have at least two second connecting blocks 2021 on the side facing the first connecting portion 2012. The two first connecting blocks 2013 may be connected to the at least two second connecting blocks 2021 respectively. Among the at least two first connecting blocks 2013 in the first connecting portion 2012, two first connecting blocks 2013 may be located on both sides of the first connecting portion 2012 in a first direction X, which may be parallel to the axis of the reel 200.

[0114] Correspondingly, at least two second connecting blocks 2021 in the first reel shell 202 can be located on both sides of the first reel shell 202 in the first direction X, so as to ensure that the two first connecting blocks 2013 located on both sides of the first connecting portion 2012 in the first direction X can be correspondingly distributed with the two second connecting blocks 2021 located on both sides of the first reel shell 202 in the first direction X. The first connecting block 2013 can be fixedly connected to the corresponding second connecting block 2021. For example, the first connecting block 2013 and the corresponding second connecting block 2021 can be fixedly connected together by screws. In this way, the first connecting portion 2012 and the first reel shell 202 can be fixedly connected by the connection of the first connecting block 2013 and the corresponding second connecting block 2021.

[0115] Optional, such as Figure 13 and Figure 14 As shown, the support platform 2011 in the support platform 201 may have two third connecting blocks 2014 on the side opposite to the first connecting portion 2012 in the second direction Y, and the second roll shell 203 may have two fourth connecting blocks 2031 on the side opposite to the first connecting portion 2012 in the second direction Y. The two third connecting blocks 2014 can be connected to the two fourth connecting blocks 2031 respectively. Here, the first direction X may intersect with the second direction Y, and the second direction Y may be parallel to the support surface P1 of the support platform body 2011. The two third connecting blocks 2014 in the support platform body 2011 may be located on both sides of the support platform body 2011 in the first direction X, and the flexible display panel 300 may be located between the two third connecting blocks 2014 in the first direction X.

[0116] Correspondingly, the two fourth connecting blocks 2031 in the second reel shell 203 can be located on both sides of the second reel shell 203 in the first direction X, so as to ensure that the two third connecting blocks 2014 and the two fourth connecting blocks 2031 can be distributed correspondingly in the first direction X. The third connecting block 2014 can be fixedly connected to the corresponding fourth connecting block 2031. For example, the third connecting block 2014 and the corresponding fourth connecting block 2031 can be fixedly connected together by screws. In this way, the fixed connection between the third connecting block 2014 and the fourth connecting block 2031 can realize the fixed connection between the second reel shell 203 and the support platform body 2011.

[0117] Furthermore, since the flexible display panel 300 is located between the two third connecting blocks 2014 of the support platform body 2011 in the first direction X, the flexible display panel 300 is also located between the two fourth connecting blocks 2031 of the second roll shell 203 in the first direction X. Thus, after the two third connecting blocks 2014 and the two fourth connecting blocks 2031 are connected, the flexible display panel 300 can be located between the connected third connecting blocks 2014 and the two fourth connecting blocks 2031 in the first direction X. That is, the connected third connecting blocks 2014 and the fourth connecting blocks 2031 will not obstruct the portion of the flexible display panel 300 within the communicating channel K22.

[0118] It should be noted that the fourth connecting block 2031 in the second roll housing 203 can be located on the end portion of the second roll housing 203 facing the first roll housing 202. Thus, since the flexible display panel 300 is located between the two connected third connecting blocks 2014 and the fourth connecting block 2031 in the first direction X, the flexible circuit board 500 connected to the non-display portion 303 in the flexible display panel 300 is also located between the two connected third connecting blocks 2014 and the fourth connecting block 2031 in the first direction X. That is, the connected third connecting blocks 2014 and the fourth connecting block 2031 will not obstruct the distribution of the flexible circuit board 500 within the connecting channel K22.

[0119] Optional, such as Figure 13 and Figure 15 As shown, Figure 15 This is an exploded view of another type of reel provided in this application embodiment. The first reel shell 202 of the reel 200 may have at least one first fastening member 2022 on the side facing away from the first connecting portion 2012 in the second direction Y. The second reel shell 203 may also have at least one second fastening member 2032 on the side facing the first connecting portion 2012 in the second direction Y. At least one first fastening member 2022 in the first reel shell 202 can be fastened to at least one second fastening member 2032 in the second reel shell 203. Thus, the connection between the first reel shell 202 and the second reel shell 203 can be achieved through the fastening connection of the first fastening member 2022 and the second fastening member 2032.

[0120] Furthermore, in the first direction X, at least one second fastening member 2032 in the second reel housing 203 can be distributed between two fourth connecting blocks 2031 in the second reel housing 203. Correspondingly, in the first direction X, at least one first fastening member 2022 in the first reel housing 202 can be distributed between two third connecting blocks 2014 on the support platform body 2011.

[0121] Thus, through the fixed connection between the first connecting block 2013 and the corresponding second connecting block 2021, the first connecting part 2012 in the support platform 201 and the first roll shell 202 can be fixedly connected. Through the fixed connection between the third connecting block 2014 and the corresponding fourth connecting block 2031, the support platform 2011 in the support platform 201 and the second roll shell 203 can be fixedly connected. Through the fastening connection between the first fastening member 2022 and the second fastening member 2032, the first roll shell 202 and the second roll shell 203 can be connected. In this way, the overall assembly of the roll 200 is achieved.

[0122] Optional, please refer to Figure 16 , Figure 16 This is a schematic diagram of the rear structure of a display device according to an embodiment of this application. The display device may include at least two support members 600. The at least two support members 600 may be arranged separately in a first direction X. The following embodiments of this application illustrate the display device including two support members 600 as an example.

[0123] When the display device includes two support members 600, the two support members 600 can be distributed on both sides of the flexible display panel 300 in the first direction X.

[0124] At least a portion of the support member 600 in the display device may be located within the first receiving cavity K1 of the support base 100, and the portion of the support member 600 extending out of the first receiving cavity K1 of the support base 100 is a rigid rod H.

[0125] Here, when the display device is in the unfolded state, at least a portion of the flexible display panel 300 and the support member 600 can extend and unfold from the first receiving cavity K1 of the support base 100 through the first opening O1; when the display device is in the retracted state, at least a portion of the flexible display panel 300 and the support member 600 can both retract into the first receiving cavity K1 of the support base 100. The end of the rigid rod H facing away from the support base 100 can be fixedly connected to the side of the flat display portion 301 of the flexible display panel 300 facing away from the support base 100.

[0126] Optional, such as Figure 16As shown, each support member 600 in the display device may include two chains 600a arranged in the first direction X. At least a portion of the chain 600a located within the first receiving cavity K1 of the support base 100 may be a chain separation portion 601, and the portion of the chain 600 extending outside the first receiving cavity K1 of the support base 100 may be a chain engagement portion 602. The two chain engagement portions 602 of the two chains 600a of the support member 600 may engage to form a rigid rod H, and the two chain separation portions 601 of the two chains 600a of the support member 600 may be separated. Furthermore, the two chain separation portions 601 may be arranged on opposite sides of the rigid rod H in the first direction X.

[0127] Thus, when the flexible display panel 300 in the display device is not needed for image display, and the flat display portion 301 of the flexible display panel 300 retracts into the first receiving cavity K1 of the support base 100, the two chain engagement portions 602 of the two chains 600a in the support member 600, which mesh with the rigid rod H, also need to retract into the first receiving cavity K1 of the support base 100. Furthermore, during this process, since the two chain separation portions 601 of the two chains 600a can be arranged on both sides of the rigid rod H in the first direction X, the two chain engagement portions 602 retracted into the first receiving cavity K1 can separate from each other, becoming two chain separation portions 601, ultimately positioned within the first receiving cavity K1 of the support base 100 as two chain separation portions 601. Therefore, after the display device is in the retracted state, the overall volume of the display device is the same as the volume of the support base 100 within the display device.

[0128] When the flexible display panel 300 in the display device displays an image, the rollable display portion 302 of the flexible display panel 300, which is wound on the roller 200, unfolds outward and through the first opening O1 of the support base 100 to unfold into a flat display portion 301. During this process, the two chain separation portions 601 of the two chains 600a located in the first receiving cavity K1 can engage into two chain engagement portions 602, and gradually extend out of the first receiving cavity K1 to engage into a rigid rod H. Here, since the two chain engagement portions 602 are engaged into a rigid rod H after engagement, during the process of the two chain separation portions 601 turning into chain engagement portions 602 to engage into a rigid rod H, the end of the rigid rod H away from the two chain separation portions 601 can move in the direction away from the support base 100, thereby driving the rollable display portion 302 to unfold into a flat display portion 301.

[0129] Thus, through the engagement of the two chain engagement portions 602 of the two chains 600a in the support member 600 and the separation of the two chain separation portions 601, when the display device is in the retracted state and the flat display portion 301 of the flexible display panel 300 retracts into the first receiving cavity K1 of the support base 100, the two chain engagement portions 602 of the two chains 600a, which are engaged as rigid rods H, can separate into two chain separation portions 601 to retract into the first receiving cavity K1. Similarly, when the display device is in the unfolded state and the flat display portion 301 needs to be unfolded, the two chain separation portions 601 can engage as rigid rods H, so that the end of the rigid rod H opposite to the two chain separation portions 601 is fixedly connected to the side of the flat display portion 301 opposite to the rollable display portion 302, thereby driving the flat display portion 301 to unfold. In this way, the display device can be unfolded and retracted using the simple support member 600, which improves the reliability of the display device and makes the support member 600 more efficient in unfolding the flexible display panel 300.

[0130] Optional, such as Figure 16 As shown, the extension direction of the rigid rod H can be parallel to the third direction Z, which can be parallel to the planar display portion 301 and intersect with the first direction X. The two chain separation portions 601 of the two chains 600a of the support member 600 can be slidably connected to the support base 100 within the first receiving cavity K1 of the support base 100.

[0131] In this way, as the two chain separation sections 601 gradually transform into two meshing chain engagement sections 602 to engage as a rigid rod H, since the rigid rod H has a certain rigidity, both chain separation sections 601 move towards the rigid rod H in the first direction X, and at the intersection with the rigid rod H, they transform into two meshing chain engagement sections 602 to engage as a rigid rod H. During this process, the end of the rigid rod H that is away from the two chain separation sections 601 can move continuously in the third direction Z away from the support base 100, thereby driving the side of the flat display section 301 that is away from the rollable display section 302 to move continuously in the third direction Z away from the support base 100. This allows the flat display section 301 to unfold, so that the display device gradually changes from a retracted state to an unfolded state.

[0132] Optional, such as Figure 16 and Figure 17 As shown, Figure 17 This is a schematic diagram of the rear structure of another display device provided in an embodiment of this application. The first receiving cavity K1 of the support base 100 may have multiple storage tracks 100a inside. One support member 600 in the display device may correspond to two storage tracks 100a.

[0133] In the first direction X, for a support member 600 and two storage tracks 100a corresponding to the support member 600, the two storage tracks 100a can be located on both sides of the rigid rod body H, and the two storage tracks 100a can be slidably connected to the two chain separation parts 601 of the two chains 600a of the support member 600.

[0134] Thus, as the display device gradually unfolds, the end of the rigid rod H away from the two chain separation parts 601 drives the flat display part 301 to move in the Z direction away from the support base 100. During this process, the two chain separation parts 601 can gradually slide out from the two storage tracks 100a, and after converting into two chain engagement parts 602 and engaging, extend from the receiving cavity K, engaging as the rigid rod H. Similarly, during the gradual retraction of the display device, the end of the rigid rod H away from the two chain separation parts 601 can move in the Z direction towards the support base 100, and the two engaging chain engagement parts 602 can separate into two chain separation parts 601, which can then slide into the two storage tracks 100a respectively.

[0135] The storage track 100a may include at least a first linear track 101. The extension direction of the first linear track 101 in the storage track 100 may be parallel to the first direction X. It should be noted that the two storage tracks 100a may be symmetrically distributed with respect to the rigid rod H in the first direction X, and the extension directions of the two storage tracks 101 may coincide.

[0136] Thus, during the unfolding of the display device, the two chain separation parts 601 can move within the two first tracks 101 in the direction toward the rigid rod H, gradually engaging into the rigid rod H. During the retraction of the display device, the two chain engagement parts 602 can gradually separate into two chain separation parts 601, and gradually slide into the two first linear tracks 101, and then be stored in the two storage tracks 100a respectively.

[0137] Optionally, the storage track 100a may further include a second linear track 102 and a third linear track 103. The extension direction of the second linear track 102 in the storage track 100a may be parallel to the extension direction of the first linear track 101, that is, the extension directions of both the second linear track 102 and the first linear track 101 are parallel to the first direction X, and the extension direction of the third linear track 103 may be parallel to the third direction Z. One end of the third linear track 103 in the storage track 100a may be connected to the end of the first linear track 101 that is away from the rigid rod H, and the other end of the third linear track 103 may be connected to the end of the second linear track 102 that is away from the rigid rod H.

[0138] Optional, such as Figure 17 As shown, the storage track 100a may further include: a fourth linear track 104, a fifth linear track 105, and a sixth linear track 106. The extension direction of the fourth linear track 104 in the storage track 100a may be parallel to the first direction X, and the fourth linear track 104 may be located between the first linear track 101 and the second linear track 102 in the third direction Z.

[0139] The extension direction of the fifth linear track 105 in the storage track 100a can be parallel to the third direction Z, and the fifth linear track 105 can be located between the third linear track 103 and the rigid rod H in the first direction X. The extension direction of the sixth linear track 106 in the storage track 100a can intersect the first direction X, intersect the third direction Z, and be parallel to the planar display portion 301.

[0140] Here, one end of the sixth linear track 106 can be connected to the end of the second linear track 102 facing the rigid rod H, and the other end of the sixth linear track 106 can be connected to the end of the fifth linear track 105 facing the first linear track 101. The end of the fifth linear track 105 facing the second linear track 102 can be connected to the end of the fourth linear track 104 facing the third linear track 103.

[0141] Thus, as the display device switches from the unfolded state to the retracted state, the two chain engagement parts 602 gradually separate into two chain separation parts 601, and the two chain separation parts 601 gradually retract into the storage track 100a. During this process, the portion of the chain separation part 601 located within the first linear track 101 can slide through the third linear track 103 into the second linear track 102, and then sequentially through the sixth linear track 106 and the fifth linear track 105 into the fourth linear track 104. This allows the chain separation part 601 to be stored within the storage track 100a.

[0142] Similarly, as the display device switches from the retracted state to the unfolded state, and the two chain separation parts 601 gradually slide out from the storage track 100a, the portion of the chain separation part 601 located in the fourth linear track 104 can slide sequentially through the fifth linear track 105 and the sixth linear track 106 into the second linear track 102, and then through the third linear track 103 into the first linear track 101. Thus, the two chain separation parts 601 that slide out from the two first linear tracks 101 can engage to form two chain engagement parts 602, thus becoming a rigid rod H.

[0143] Optional, such as Figure 18 As shown, Figure 18This is a schematic diagram of the rear structure of another display device provided in this application example. The display device may also include: a plurality of drive gears 700, and a support member 600 may correspond to two drive gears 700.

[0144] For a support member 600 and two drive gears 700 corresponding to the support member 600, the two drive gears 700 can respectively mesh with two chains 600a in the support member 600. Furthermore, for any one of the two drive gears 700 and the chain meshing with it, the drive gear 700 can be located at the intersection of the chain engagement portion 602 and the chain disengagement portion 601 in the chain 600a, and the drive gear 700 can mesh with both the chain engagement portion 602 and the chain disengagement portion 601.

[0145] It should be noted that the display device may also include two second drive motors, which can respectively drive two drive gears 700 to rotate, thereby driving two chains 600a to move. Here, during the process of the display device switching from the retracted state to the unfolded state, the two second drive motors need to synchronously drive the two drive gears 700 to rotate, so as to drive the two chains 600a to move synchronously, thereby enabling the rigid rod H formed by the meshing of the two chain separation parts 601 to drive the flat display part 301 to unfold at a certain speed.

[0146] During the process of switching the display device from the unfolded state to the retracted state, the two second drive motors also need to synchronously drive the two gears 700 to rotate, so as to drive the two chains 600a to move synchronously, thereby enabling the two chain meshing parts 602 in the rigid rod body H to synchronously separate into two chain separating parts 601, and drive the two chain separating parts 601 to slide into the two first linear tracks 101 respectively, so as to be stored in the two storage tracks 100a respectively.

[0147] It should be noted that, in the first direction X, the distance between the two drive gears 700 needs to match the width of the rigid rod H in the first direction X, so that when the two chain separation parts 601 move toward each other in the first direction X under the drive of the drive gears 700 to the position where the chain separation parts 601 and the chain engagement parts 602 intersect, the two chain separation parts 601 can turn into chain engagement parts 602 between the two drive gears 700 to engage with the rigid rod H.

[0148] Optional, please refer to Figure 19 and Figure 20 , Figure 19 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 20This is a schematic diagram of a partial structure of a display device provided in an embodiment of this application. The display device may further include: a transmission assembly 800, a tensioning assembly 900, and a first drive motor 1100. Figure 19 , Figure 20 and Figure 21 As shown, Figure 21 This is a schematic diagram of the structure of a first drive motor provided in an embodiment of this application. The first drive motor 1100 in the display device has an output shaft 1101. The first end of the tensioning component 900 can be connected to the output shaft 1101 of the first drive motor 1100, the second end of the tensioning component 900 can be connected to the transmission component 800, and the end of the transmission component 800 opposite to the tensioning component 900 can be connected to the reel 200.

[0149] During the unfolding process of the flexible display panel 300, that is, during the process of the display device switching from the retracted state to the unfolded state, the two second drive motors can synchronously drive the two drive gears 700 to rotate, so as to continuously engage the two chain separation parts 601 of the two chains 600a into a rigid rod H. In this process, the side of the rigid rod H away from the two chain separation parts 601 can drive the flat display part 301 away from the side of the rollable display part 302, and move in the third direction Z along the direction away from the support base 100.

[0150] As the flat panel display portion 301 moves continuously in the third direction Z along the direction away from the support base 100, away from the rollable display portion 302, the scroll 200 can rotate under the action of the flat panel display portion 301 to accommodate the continuous unfolding of the rollable display portion 302 wound on the scroll 200. Here, the scroll 200 is limited to rotating around the first rotation direction during the unfolding process of the flexible display panel 300.

[0151] During the rotation of the reel 200 around the first rotation direction, the tensioning assembly 900 can have a tension force around the second rotation direction. It should be noted that the tension force of the tensioning assembly 900 around the second rotation direction is applied in advance. Here, the tensioning assembly 900 can be a torsion spring. The tensioning assembly 900 is already twisted when the display device needs to switch from a retracted state to an unfolded state. Furthermore, to give the tensioning assembly 900 a tension force in the second rotation direction, the tensioning assembly 900 can be twisted around the first rotation direction.

[0152] Here, the first rotation direction and the second rotation direction are opposite. For example, the first rotation direction can be one of counterclockwise and clockwise, and the second rotation direction can be the other of counterclockwise and clockwise.

[0153] During the rotation of the spool 200 around the first rotation direction, since the two ends of the transmission component 800 are respectively connected to the spool 200 and the tensioning component 900, the rotation of the spool 200 around the first rotation direction will drive the tensioning component 900 to rotate around the first rotation direction through the transmission component 800.

[0154] The first drive motor 1100 can be configured to drive the tensioning component 900 to rotate around a first rotational direction during the unfolding of the flexible display panel 300. Thus, the second end of the tensioning component 900 can rotate around the first rotational direction via the drive of the roller 200 and the transmission component 800, and the first end of the tensioning component 900 can rotate around the first rotational direction via the drive of the first drive motor 1100. In this way, during the unfolding of the flexible display panel 300, the tensioning component 900, having a tension force around a second rotational direction, can rotate around the first rotational direction as a whole. That is, during the unfolding of the flexible display panel 300, the tensioning component 900 can continuously maintain a tension force around the second rotational direction.

[0155] Thus, during the unfolding of the flexible display panel 300, since the scroll 200 rotates around the first rotation direction and the tension force 900 maintains tension around the second rotation direction, the scroll 200 can apply a force towards the support base 100 in the third direction Z to the flat display portion 301 under the tension force of the tensioning component 900. Furthermore, since the end of the flat display portion 301 away from the scroll 200 is connected to the end of the rigid rod H away from the support base 100, the flat display portion 301 can be tensioned under the action of the scroll 200 and the rigid rod H during the unfolding of the flexible display panel 300. This results in better flatness of the flat display portion 301, leading to better display effects of the image displayed through the flat display portion 301.

[0156] During the winding process of the flexible display panel 300, that is, during the process of the display device switching from the unfolded state to the retracted state, the two second drive motors can synchronously drive the two drive gears 700 to rotate, thereby causing the rigid rods H in the two chains 600a to continuously separate into two chain separation parts 601. In this process, the side of the rigid rod H away from the two chain separation parts 601 can drive the flat display part 301 away from the side of the rollable display part 302 to move in the third direction Z toward the support base 100.

[0157] As the flat panel display portion 301 moves continuously in the third direction (Z) toward the support base 100 on the side opposite to the rollable display portion 302, the scroll 200 can rotate under the action of the flat panel display portion 301, causing the unfolded flat panel display portion 301 to continuously wind around the scroll 200 and transform into the rollable display portion 302. Here, the scroll 200 can rotate about a second rotation direction during the winding process of the flexible display panel 300. During the rotation of the scroll 200 about the second rotation direction, the tensioning assembly 900 can also have a tension force about the second rotation direction.

[0158] During the rotation of the spool 200 around the first rotation direction, since the two ends of the transmission component 800 are respectively connected to the spool 200 and the tensioning component 900, the rotation of the spool 200 around the second rotation direction will drive the tensioning component 900 to rotate around the second rotation direction through the transmission component 800.

[0159] The first drive motor 1100 can also be configured to drive the tensioning component 900 to rotate around the second rotation direction during the winding process of the flexible display panel 300. In this way, the second end of the tensioning component 900 can rotate around the second rotation direction via the drive of the roll 200 and the transmission component 800, and the first end of the tensioning component 900 can rotate around the second rotation direction via the drive of the first drive motor 1100. Thus, during the winding process of the flexible display panel 300, the tensioning component 900, having tension force around the second rotation direction, can rotate entirely around the second rotation direction. That is, during the winding process of the flexible display panel 300, the tensioning component 900 can always maintain tension force around the second rotation direction.

[0160] Thus, during the winding process of the flexible display panel 300, since the roller 200 rotates around the second rotation direction and the tension force 900 always has a tension force around the second rotation direction, under the action of the tensioning component 900, the roller 200 can apply a force in the third direction Z toward the support base 100 to the flat display part 301, so that the flat display part 301 can be wound on the roller 200 in a taut state under the action of this force, thereby making the winding degree of the rollable display part 302 on the roller 200 tighter, avoiding the phenomenon that the rollable display part 302 is loosely wound on the roller 200.

[0161] Optionally, the first drive motor is configured to drive the tensioning component 900 to rotate around a first rotation direction during the unfolding process of the flexible display panel 300, and to drive the tensioning component 900 to rotate around a second rotation direction during the winding process of the flexible display panel 300, so that the tension force provided by the tensioning component 900 is maintained within a preset range.

[0162] It should be noted that the tension force of the tensioning component 900 around the second rotation direction is pre-applied. Maintaining the tension force provided by the tensioning component 900 within a preset range means that during the unfolding or rewinding process of the flexible display panel 300, the difference between the tension force of the tensioning component 900 and the pre-applied torsional force is within a certain range.

[0163] Here, in order to ensure that the tension of the tensioning component 900 is maintained within a preset range during the unfolding or rewinding of the flexible display panel 300, when both ends of the tensioning component 900 rotate simultaneously around the first rotation direction or around the second rotation direction, the difference between the rotation speed of the first end and the rotation speed of the second end of the tensioning component 900 needs to be less than a preset threshold, so as to avoid the tensioning component 900 being excessively twisted.

[0164] It should also be noted that during the unfolding or rewinding of the flexible display panel 300, when the difference between the rotation speed of the second end of the tensioning component 900 driven by the roller 200 through the transmission component 800 and the rotation speed of the first end of the tensioning component 900 driven by the first drive motor 1100 is less than a preset threshold but not zero, the tensioning component 900 can eliminate the difference in speed between the two ends of the tensioning component 900 by adjusting its own degree of torsion.

[0165] Optional, such as Figure 22 and Figure 23 As shown, Figure 22 This is a cross-sectional view of a partial structure of a display device provided in an embodiment of this application. Figure 23 This is an exploded view of a partial structure of a display device provided in an embodiment of this application. The display device may further include a sleeve 1200. The transmission assembly 800 in the display device may include a transmission rod 801 and a transition mechanism 802.

[0166] The sleeve 1200 can be connected to the first output shaft 1101 of the first drive motor 1100. The sleeve 1200 can be sleeved on one end of the transmission rod 801 and can be rotatably connected to the transmission rod 801. The end of the transmission rod 801 away from the sleeve 1200 can be connected to the reel 200 through the transition mechanism 802. The tensioning assembly 900 can be sleeved on the transmission rod 801, and the first end of the tensioning assembly 900 can be connected to the sleeve 1200, and the second end of the tensioning assembly 900 can be connected to the end of the transmission rod 801 away from the sleeve 1200.

[0167] It should be noted that the first receiving cavity K1 of the support base 100 may have a support portion 107, which can be used to support the first output shaft 1101 of the first drive motor 1100, so that the first output shaft 1101 of the first drive motor 1100 can rotate under the support of the support portion 107. Similarly, the end of the transmission rod 801 away from the transmission sleeve 1200 can also be supported by the support base 100, so that the transmission rod 801 can rotate under the support of the support base 100.

[0168] It should also be noted that the tensioning assembly 900 can be fully sleeved on the transmission rod 801. In this way, the transmission rod 801 can support the tensioning assembly 900 in the third direction Z to prevent the tensioning assembly 900 from deforming in the third direction Z.

[0169] like Figure 23 As shown, the transition mechanism 802 in the transmission assembly 800 may include: a gear belt 8021, a first transmission gear 8022, and a second transmission gear 8023. The first transmission gear 8022 may be sleeved on the end of the transmission rod 801 away from the transmission sleeve 1200, and the second transmission gear 8023 may be sleeved on the end of the reel 200. Both ends of the gear belt 8021 may be sleeved on the first transmission gear 8022 and the second transmission gear 8023. The rotation of the reel 200 can drive the second transmission gear 8023 to rotate, and then through the rotation of the gear belt 8021, the first end of the tensioning assembly 900 can be driven to rotate through the first transmission gear 8022.

[0170] In summary, this application provides a display device including a support base, a scroll, a flexible display panel, and a circuit board. The scroll may have a second receiving cavity and a second opening. The circuit board in the display device can be located within the second receiving cavity of the scroll. The non-display portion of the flexible display panel, facing away from the rollable display portion, can extend through the second opening of the scroll into the second receiving cavity to electrically connect with the circuit board located within the second receiving cavity. This ensures a suitable placement of the circuit board, guaranteeing the reliability of the connection between the non-display portion and the circuit board.

[0171] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0172] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0173] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display device, characterized in that, include: Support base, scroll, flexible display panel and circuit board; The support has a first receiving cavity and a first opening communicating with the first receiving cavity; The reel is installed within the support base; the reel has a second receiving cavity and a second opening communicating with the second receiving cavity; The flexible display panel includes: a flat display portion, a rollable display portion, and a non-display portion connected in sequence; The flat display portion can extend out of the first receiving cavity through the first opening, the rollable display portion can be wound around the scroll, and the non-display portion can extend into the second receiving cavity through the second opening; The circuit board is located within the second receiving cavity, and the circuit board is connected to the side of the non-display portion opposite to the rollable display portion.

2. The display device according to claim 1, characterized in that, The second receiving cavity includes: a main receiving cavity and a communicating channel, wherein the main receiving cavity is connected to one end of the communicating channel, and the other end of the communicating channel is connected to the second opening; The circuit board is located within the main receiving cavity, and at least a portion of the non-display portion is located within the communicating channel.

3. The display device according to claim 2, characterized in that, The reel includes: a support platform, a first reel housing, and a second reel housing; The first and second reel shells are fastened together, the support platform is located in the area enclosed by the first and second reel shells, and the support platform is connected to the first reel shell; The support platform and the first roll shell are used to form the main receiving cavity, and the circuit board is connected to the support platform inside the main receiving cavity; the support platform and the second roll shell are used to form the communicating channel.

4. The display device according to claim 3, characterized in that, The support platform has a support surface and a first curved surface that are arranged opposite to each other; The side of the first roll shell facing the support platform is a second curved surface; The side of the second roll shell facing the support platform is a third curved surface; The main receiving cavity is located between the bearing surface and the second curved surface, and the bearing surface is used to support the circuit board; the connecting channel is located between the first curved surface and the third curved surface.

5. The display device according to claim 4, characterized in that, The support platform includes: a support platform body and a first connecting part. The support platform body has a support surface and a first curved surface that are disposed opposite to each other. The first connecting part is fixedly connected to the support platform body on the support surface. The side of the first connecting part away from the support platform is fixedly connected to the first roll shell. The first connecting portion, the bearing surface, and the second curved surface are used to form the main receiving cavity, and the second opening is located on the side of the first connecting portion away from the main receiving cavity.

6. The display device according to claim 5, characterized in that, The side of the first connecting portion facing away from the main receiving cavity is a fourth curved surface; the side of the first scroll shell facing away from the second curved surface is a fifth curved surface; the side of the second scroll shell facing away from the third curved surface is a sixth curved surface. The fourth, fifth, and sixth curved surfaces are sequentially tangentially connected, and the outer surface of the scroll includes the fourth, fifth, and sixth curved surfaces; the non-display portion includes a first portion located within the communicating channel, and a second portion extending through the second opening and wound around the outer surface of the scroll.

7. The display device according to claim 6, characterized in that, The second portion is wound around the outer surface of the spool at least once, and the rollable display portion is wound around the second portion.

8. The display device according to claim 5, characterized in that, The first connecting portion has at least two first connecting blocks on the side facing the first spool housing, and the first spool housing has at least two second connecting blocks on the side facing the first connecting portion, wherein the at least two first connecting blocks are correspondingly connected to the at least two second connecting blocks; Wherein, the at least two first connecting blocks are located on both sides of the first connecting portion in a first direction; the first direction is parallel to the axis of the scroll.

9. The display device according to claim 8, characterized in that, The support platform body has two third connecting blocks on the side away from the first connecting part in the second direction, and the second roll shell has two fourth connecting blocks on the side facing the first connecting part in the second direction; the two third connecting blocks are correspondingly connected to the two fourth connecting blocks; the second direction intersects the first direction and is parallel to the supported surface; The two third connecting blocks are located on both sides of the support platform body in the first direction, and the flexible display panel is located between the two third connecting blocks in the first direction.

10. The display device according to claim 9, characterized in that, The first roll shell has at least one first fastening member on the side facing away from the first connecting portion in the second direction, and the first roll shell also has at least one second fastening member on the side facing the first connecting portion in the second direction; the at least one first fastening member and the at least one second fastening member are correspondingly fastened together. In the first direction, at least one second fastening member is distributed between the two fourth connecting blocks.

11. The display device according to any one of claims 2-10, characterized in that, The display device further includes: a flexible circuit section; one end of the flexible circuit section is electrically connected to the non-display portion, and the other end is electrically connected to the circuit board; The flexible circuit section is located within the connecting channel, and the non-display portion, on the side opposite to the rollable display portion, passes through the second opening and is located within the connecting channel.

12. The display device according to any one of claims 1-10, characterized in that, The display device further includes: at least two support members, which are arranged separately in a first direction, the first direction being parallel to the axis of the scroll; At least a portion of the support member is located within the first receiving cavity, and the portion of the support member extending outside the first receiving cavity is a rigid rod. The rigid rod is fixedly connected at one end away from the support base to the side of the flat display portion away from the support base.

13. The display device according to claim 12, characterized in that, The support member includes two chains arranged in the first direction; At least a portion of the chain located within the first receiving cavity is a chain separation portion, and a portion of the chain extending outside the first receiving cavity is a chain engagement portion; two of the chain engagement portions of the two chains engage to form the rigid rod; two of the chain separation portions of the two chains are separated, and the two chain separation portions are respectively arranged on both sides of the rigid rod in the first direction.

14. The display device according to claim 13, characterized in that, The rigid rod extends in a direction parallel to a third direction, which is parallel to the planar display portion and intersects with the first direction. The chain separation section is slidably connected to the support base within the first receiving cavity.

15. The display device according to claim 14, characterized in that, The first receiving cavity has multiple storage tracks inside, and one support member corresponds to two of the storage tracks; In the first direction, for one support member and two corresponding storage tracks, the two storage tracks are respectively located on both sides of the rigid rod; and the two storage tracks are respectively slidably connected to two chain separation parts of the two chains; The storage track includes at least a first linear track, wherein the extension direction of the first linear track is parallel to the first direction.

16. The display device according to claim 15, characterized in that, The storage track also includes: a second linear track and a third linear track; The extension direction of the second linear track is parallel to the extension direction of the first linear track, and the extension direction of the third linear track is parallel to the third linear track; one end of the third linear track is connected to the end of the first linear track away from the rigid rod, and the other end of the third linear track is connected to the end of the second linear track away from the rigid rod.

17. The display device according to claim 16, characterized in that, The storage track also includes: a fourth linear track, a fifth linear track, and a sixth linear track; The fourth straight track extends parallel to the first direction, and the fourth straight track is located between the first straight track and the second straight track in the third direction. The fifth linear track extends parallel to the third direction, and the fifth linear track is located between the third linear track and the rigid rod in the first direction; The extension direction of the sixth straight track intersects the first direction and the third direction; Wherein, one end of the sixth linear track is connected to the end of the second linear track facing the rigid rod, and the other end is connected to the end of the fifth linear track facing the first linear track; the end of the fifth linear track facing the second linear track is connected to the end of the fourth linear track facing the third linear track.

18. The display device according to any one of claims 13-17, characterized in that, The display device further includes: a plurality of drive gears, with one support member corresponding to two of the drive gears; Specifically, for one support member and two corresponding drive gears, the two drive gears respectively mesh with the two chains. For any one of the two drive gears and the chain meshing with the drive gear, the drive gear is located at the intersection of the chain meshing part and the chain separating part in the chain, and the drive gear meshes with both the chain meshing part and the chain separating part.

19. The display device according to any one of claims 13-17, characterized in that, The display device further includes: a transmission assembly, a tensioning assembly, and a first drive motor; the first drive motor has an output shaft; a first end of the tensioning assembly is connected to the output shaft, a second end of the tensioning assembly is connected to the transmission assembly, and an end of the transmission assembly opposite to the tensioning assembly is connected to the end of the reel; During the unfolding of the flexible display panel, the spool rotates about a first rotation direction, and the tensioning component has a tensioning force about a second rotation direction; during the winding of the flexible display panel, the spool rotates about the second rotation direction, and the tensioning component has a tensioning force about the second rotation direction; the first rotation direction and the second rotation direction are opposite. The first drive motor is configured to: drive the tensioning component to rotate around the first rotation direction during the unfolding of the flexible display panel, and drive the tensioning component to rotate around the second rotation direction during the winding of the flexible display panel, so that the tension force provided by the tensioning component is maintained within a preset range.

20. The display device according to claim 19, characterized in that, The display device further includes: a sleeve; the transmission assembly includes: a transmission rod and a transition mechanism; The sleeve is connected to the output shaft, and the sleeve is sleeved on one end of the transmission rod and rotatably connected to the transmission rod; the end of the transmission rod away from the sleeve is connected to the reel through the transition mechanism. The tensioning assembly is sleeved on the transmission rod, and the first end of the tensioning assembly is connected to the sleeve, while the second end of the tensioning assembly is connected to the end of the transmission rod away from the sleeve.

Images