Display device

Abstract

A display device is provided. The display device includes a housing (7), a first cover plate (12), a second cover plate (15), a back plate (20), a first chamber (C1) between the housing (7) and the first cover plate (12), a second chamber (C2) between the first cover plate (12) and the second cover plate (15), and a third chamber (C3) between the second cover plate (15) and the back plate (20). The first chamber (C1) is a waterproof chamber. The third chamber (C3) is a waterproof chamber. The display device further includes a second opening (12-1) extending through the first cover plate (12), a third opening (15-1) extending through the second cover plate (15), a first sealing ring (13-1), and a second sealing ring (13-2). The second opening (12-1) and the third opening (15-1) are aligned with and connected to each other to establish a connection between the first chamber (C1) and the third chamber (C3). The first sealing ring (13-1) and the second sealing ring (13-2) are configured to waterproof the second opening (12-1) and the third opening (15-1).

Description

TECHNICAL FIELD

[0001] The present application relates to display technology, and in particular, to a display device. BACKGROUND

[0002] Flexible displays have advantages such as being bendable and rollable, which provide possibilities for the design of new forms of display devices. A rollable display device refers to a display technology that can be wound or wrapped around an object (for example, a cylindrical object) without damaging the screen or affecting its functionality. It is usually composed of a flexible screen material that can be rolled up and unrolled, facilitating portability and storage. Rollable display devices provide the advantages of high flexibility and versatility, providing users with the ability to adjust the size and shape of the display according to their needs. SUMMARY

[0003] In one aspect, the present disclosure provides a display device, comprising: a housing; a first cover plate; a second cover plate; a back plate; a first chamber between the housing and the first cover plate; a second chamber between the first cover plate and the second cover plate; and a third chamber between the second cover plate and the back plate; wherein the first chamber is a waterproof chamber; and the third chamber is a waterproof chamber; wherein the display device further comprises: a second opening extending through the first cover plate; and a third opening extending through the second cover plate; wherein the third opening connects the first chamber and the third chamber; and the third opening is at least partially located in the second opening.

[0004] Optionally, the second cover plate comprises a baffle and a main body, the baffle protrudes away from the main body towards the first cover plate; and the baffle is in direct contact with the first cover plate, thereby enclosing the second chamber.

[0005] Optionally, the display device further comprises a groove extending into the second cover plate; wherein the baffle separates the second chamber from the groove; a portion of the first cover plate extends into the groove, thereby interlocking with the second cover plate; and the portion of the first cover plate extending into the groove is at least partially in contact with a first sealing ring, and at least partially in contact with a second sealing ring.

[0006] Optionally, the first cover plate comprises a first tubular structure protruding towards the second cover plate, the second opening is an opening of the first tubular structure; the second cover plate comprises a second tubular structure protruding towards the first cover plate, the third opening is an opening of the second tubular structure; and the second tubular structure is inserted into the first tubular structure.

[0007] Optionally, the display device further comprises a first sealing ring and a second sealing ring between the inner wall of the first tubular structure and the outer wall of the second tubular structure, thereby preventing water from passing between the inner wall of the first tubular structure and the outer wall of the second tubular structure.

[0008] Optionally, the display device further comprises a water storage space between the first sealing ring and the second sealing ring, configured to further prevent water from passing through the second sealing ring.

[0009] Optionally, the display device further comprises a main board housed in the first chamber, an adapter board housed in the third chamber, and an adapter flexible printed circuit connected to the main board housed in the first chamber and connected to the adapter board housed in the third chamber; wherein the adapter flexible printed circuit extends from the first chamber, through the third opening, into the third chamber.

[0010] Optionally, the display device further comprises a second adhesive structure configured to fixedly mount the first cover plate to the housing, thereby forming the first chamber; wherein the housing further comprises a fourth slot configured to house the second adhesive structure.

[0011] Optionally, the display device further comprises a third adhesive structure configured to fixedly mount the back plate to the second cover plate, thereby forming the third chamber; wherein the second cover plate further comprises a fifth slot configured to house the third adhesive structure.

[0012] Optionally, the display device further comprises a flexible display panel configured to transition between a folded state and an unfolded state, and a push rod; wherein the push rod and the housing are collectively configured to cause the flexible display panel to transition between the folded state and the unfolded state; and the second chamber is configured to house a portion of the flexible display panel.

[0013] Optionally, the flexible display panel is bent around a support portion of the push rod; the push rod is slidably mounted to the housing; the push rod is slidably movable relative to the housing; and the flexible display panel is configured to transition between the folded state and the unfolded state as the push rod is slidably moved relative to the housing.

[0014] Optionally, the push rod is a comb-shaped push rod comprising a plurality of teeth; the housing comprises a plurality of slots configured to house the plurality of teeth of the push rod; and at least one of the plurality of teeth of the push rod comprises a start-stop limiting structure configured to define a limit of the slidable movement of the push rod relative to the housing.

[0015] Optionally, the display device further comprises a first adhesive structure configured to mount the flexible display panel to the housing; and the first adhesive structure is configured to form a sealed chamber between the flexible display panel and the housing.

[0016] Optionally, the flexible display panel comprises a pad bending area; and the first adhesive structure is configured to fixedly mount the pad bending area of the flexible display panel to a frame portion of the housing.

[0017] Optionally, the housing further comprises a second groove configured to at least partially accommodate the first adhesive structure; and the first adhesive structure at least partially extends into and is mounted to the second groove of the housing.

[0018] Optionally, the display device further comprises a push rod; and a housing mounted to the housing and to the push rod; wherein the display device has a first display area and a second display area; and the first display area is capable of being slidably opened to increase a total display area of the display device or is capable of being retracted to decrease the total display area of the display device; wherein the housing encloses a portion of the flexible display panel bent around the support portion of the push rod; the housing further encloses at least a portion of the first display area when the portion of the first display area is retracted; and the housing further encloses a side edge of the flexible display panel.

[0019] Optionally, the housing comprises a first protrusion; the housing comprises a first groove; the first protrusion and the first groove are configured to interlock with each other to mount the housing to the housing; and the first groove is a blind groove.

[0020] Optionally, the display device further comprises a coil spring; and a pin shaft; wherein the pin shaft is configured to mount the coil spring to the housing; the pin shaft is movably mounted to the housing; a first portion of the coil spring is mounted to the pin shaft and a second portion of the coil spring is mounted to the flexible display panel to provide a tensioning mechanism for the flexible display panel; and the coil spring and the pin shaft are accommodated in the second chamber.

[0021] Optionally, the second cover plate comprises a second protrusion; the housing comprises a third groove; the second protrusion and the third groove are configured to interlock with each other to fix the pin shaft; and the pin shaft passes through the coil spring to achieve fixation of the coil spring.

[0022] Optionally, the display device further includes a main board accommodated in the first chamber, a first opening extending through a side of the housing, and a flexible printed circuit connected to the flexible display panel and to the main board, wherein the flexible printed circuit extends into the first chamber through the first opening to connect to the main board. BRIEF DESCRIPTION OF DRAWINGS

[0023] According to various disclosed embodiments, the following drawings are merely examples for illustrative purposes only and are not intended to limit the scope of the present disclosure.

[0024] Figure 1 FIG. 1 is a schematic diagram showing a folded state of a display device in some embodiments according to the present disclosure.

[0025] Figure 2 FIG. 2 is a schematic diagram showing an unfolded state of a display device in some embodiments according to the present disclosure.

[0026] Figure 3 FIG. 3 is an exploded view of a display device in some embodiments according to the present disclosure.

[0027] Figure 4 FIG. 4 is a cross-sectional view along line A-A’ in FIG. 3, showing a first chamber, a second chamber, and a third chamber in a display device in some embodiments according to the present disclosure. Figure 1

[0028] Figure 5 FIG. 5 is an exploded view of a housing, a flexible display panel, a push rod, and a housing in a display device in some embodiments according to the present disclosure.

[0029] Figure 6 FIG. 6 is a cross-sectional view along line B-B’ in FIG. 5 when the housing, the flexible display panel, the push rod, and the housing are assembled together. Figure 5

[0030] FIG. 7 is a schematic diagram showing a portion of a display device in which the housing, the flexible display panel, the push rod, and the housing are assembled together. Figure 7

[0031] Figure 8 FIG. 8 is an exploded view of a flexible display panel, a push rod, a housing, and a first cementing structure in a display device in some embodiments according to the present disclosure.

[0032] Figure 9 FIG. 9 is a cross-sectional view along line C-C’ in FIG. 8. Figure 8

[0033] FIG. 10 shows a tensioning mechanism for a flexible display panel in a display device in some embodiments according to the present disclosure. Figure 10 FIG. 11 is a schematic diagram showing a tensioning mechanism for a flexible display panel in a display device in some embodiments according to the present disclosure.​​

[0034] Figure 11 is a schematic diagram illustrating a coil spring assembly in a display device in some embodiments according to the present disclosure.

[0035] Figure 12 is a perspective view of a portion of a display device assembled with the coil spring assembly depicted in Figure 11

[0036] Figure 13 is a cross-sectional view along line D-D’ in Figure 11

[0037] Figure 14 is a perspective view of a portion of a display device in some embodiments according to the present disclosure.

[0038] Figure 15 is a perspective view of a portion of a display device in some embodiments according to the present disclosure. Figure 14

[0039] Figure 16 is a cross-sectional view along line E-E’ in Figure 14

[0040] Figure 17 illustrates a waterproof mechanism in a display device in some embodiments according to the present disclosure.

[0041] Figure 18 is a magnified view of the magnified area ZR depicted in Figure 17 DETAILED DESCRIPTION

[0042] The present disclosure will now be described in greater detail in connection with the following embodiments. It should be noted that the following description of some embodiments presented herein is merely intended to illustrate and describe, and is not intended to exhaustively enumerate or limit the precise forms disclosed.

[0043] The present disclosure provides, inter alia, a display device that substantially obviates one or more problems due to limitations and disadvantages of the related art. In some embodiments, the display device includes a housing, a first cover plate, a second cover plate, a back plate, a first chamber between the housing and the first cover plate, a second chamber between the first cover plate and the second cover plate, and a third chamber between the second cover plate and the back plate. Optionally, the first chamber is a waterproof chamber. Optionally, the third chamber is a waterproof chamber. Optionally, the display device further includes a second opening extending through the first cover plate, a third opening extending through the second cover plate, a first sealing ring, and a second sealing ring. Optionally, the second opening and the third opening are aligned with and connected to each other to establish a connection between the first chamber and the third chamber. Optionally, the first sealing ring and the second sealing ring are configured to waterproof the second opening and the third opening.​​​​​

[0044] Figure 1 is a schematic diagram illustrating a folded state of a display device in some embodiments according to the present disclosure. Figure 2 is a schematic diagram illustrating an unfolded state of a display device in some embodiments according to the present disclosure. The folded state refers to a configuration of the display device when the display device is rolled up or folded or contracted into a smaller size or shape. In the folded state, components or portions of the display device are brought together to reduce its overall size for storage, portability, or convenience. The unfolded state refers to the opposite configuration of the display device when the display device is at least partially (e.g., completely) extended or laid out or unfolded or expanded to an enlarged size or shape. In the unfolded state, parts or portions of the display device are unfolded or separated to achieve a greater surface area and / or increased functionality and / or improved usability. Reference is made to Figure 1 and Figure 2 , the display device has a first display area 1 and a second display area 2. In one example, the second display area 2 is a fixed display area, while the first display area 1 is a rollable display area. The display device is capable of being slid open in the first display area 1 to increase the overall display area of the display device, or capable of being retracted to decrease the overall display area of the display device. The display device does not undergo any rollable motion in the second display area 2, and thus does not cause a change in the overall display area of the display device. In some embodiments, the display device further comprises a wristband 3 that can be worn on a wrist to enable wearable functionality of the display device.

[0045] Figure 3 is an exploded view of a display device in some embodiments according to the present disclosure. Reference is made to Figure 3 , in some embodiments, the display device comprises a housing 4, a flexible display panel 5, a pushrod 6, and a shell 7.

[0046] In some embodiments, the pushrod 6 and the shell 7 are collectively configured to transition the flexible display panel 5 between a folded state (e.g., refer to Figure 1 ) and an unfolded state (e.g., refer to Figure 2 ). In some embodiments, the housing 4 is mounted (e.g., movably mounted) to the shell 7. In one example, the housing 4 interlocks with (e.g., snaps into) the shell 7. In some embodiments, the housing 4 is mounted (e.g., fixedly mounted) to the pushrod 6. In one example, the housing 4 is bolted to the pushrod 6.

[0047] In some embodiments, the flexible display panel 5 is bent around the support portion of the pushrod 6. In one example, the housing 4 wraps around the portion of the flexible display panel 5 that is bent around the support portion of the pushrod 6. Optionally, the housing 4 also wraps around at least a portion of the first display area when the portion is retracted. Optionally, the housing 4 also wraps around a side edge of the flexible display panel 5.

[0048] In some embodiments, the push rod 6 is slidably mounted to the housing 7. Optionally, the push rod 6 is slidably movable relative to the housing 7. In some embodiments, the push rod 6 is a comb-shaped push rod comprising a plurality of teeth 6-1. In some embodiments, the housing 7 comprises a plurality of slots 7-1 configured to accommodate the plurality of teeth 6-1 of the push rod 6. In some embodiments, when the push rod 6 is slidably movable relative to the housing 7, the outer case 4 moves together with the push rod 6. The flexible display panel 5 is configured to switch between the folded state and the unfolded state when the push rod 6 is slidably movable relative to the housing 7.

[0049] In some embodiments, the push rod 6 comprises a start-stop limit structure 6-2 configured to define a limit of the push rod 6 being slidably movable relative to the housing 7. For example, the start-stop limit structure 6-2 is configured to prevent overextension of the push rod 6. In one example, at least one of the plurality of teeth 6-1 of the push rod 6 comprises the start-stop limit structure 6-2, as depicted in Figure 3 .

[0050] Referring to Figure 3 , in some embodiments, the display device further comprises a first gluing structure 8 configured to fixedly mount the flexible display panel 5 to the housing 7. Optionally, the first gluing structure 8 is configured to form a sealed chamber between the flexible display panel 5 and the housing 7 when the first gluing structure 8 mounts the flexible display panel 5 to the housing 7. In some embodiments, the flexible display panel 5 comprises a pad bending area. Optionally, the first gluing structure 8 is configured to fixedly mount the pad bending area of the flexible display panel 5 to a frame portion of the housing 7. In one example, the first gluing structure 8 comprises a gluing material, such as a waterproof resin glue.

[0051] Referring to Figure 3 , in some embodiments, the display device further comprises a coil spring 9 and a pin shaft 10. Optionally, the pin shaft 10 is configured to mount the coil spring 9 to the housing 7. Optionally, the pin shaft 10 is movably mounted to the housing 7.

[0052] In some embodiments, the coil spring 9 is configured to provide tension to the flexible display panel 5. Optionally, the coil spring 9 is mounted to a portion (e.g., an end portion) of the flexible display panel 5. In one example, the coil spring 9 is mounted to the portion of the flexible display panel 5 by gluing.

[0053] Referring to Figure 3 , in some embodiments, the display device further comprises a button 11-1 and a crown 11-2 mounted on the housing 7.

[0054] Referring to Figure 3In some embodiments, the display device further comprises a first cover plate 12 configured to cover the housing 7. Optionally, the display device further comprises a second glue structure 14 configured to fixedly mount the first cover plate 12 to the housing 7. In one example, the second glue structure 14 comprises glue material, such as waterproof resin glue.

[0055] Figure 4 FIG. 1 is a schematic diagram illustrating a first chamber, a second chamber and a third chamber in a display device according to some embodiments of the present disclosure. Referring to FIG. 1, a display device 100 comprises a housing 7, a first cover plate 12, a second cover plate 15, a first chamber cl, a second chamber c2, a third chamber c3, a flexible display panel 5, a flexible printed circuit 6, a main board 17, a battery 18, a motor 19, a pin shaft 10, a coil spring 9, a first glue structure 13 and a second glue structure 14. Figure 3 Figure 4 In some embodiments, the display device further comprises the first chamber cl between the first cover plate 12 and the housing 7. The second glue structure 14 is configured to seal the first chamber cl. In some embodiments, the display device further comprises the main board 17, and the first chamber cl is configured to accommodate the main board 17. Optionally, the first chamber cl is further configured to accommodate the battery 18, the motor 19 and / or other appropriate components. The first chamber cl is waterproof.

[0056] In some embodiments, the display device further comprises a flexible printed circuit connected to the flexible display panel 5 and connected to the main board 17. In some embodiments, the flexible printed circuit enters the first chamber cl through a first opening 7-2 extending through a side of the housing 7, and is connected to the main board 17 accommodated in the first chamber cl.

[0057] Referring to FIG. 1, the display device 100 further comprises a flexible printed circuit 6. The flexible printed circuit 6 is connected to the flexible display panel 5 and connected to the main board 17. Figure 3 In some embodiments, the display device further comprises a second cover plate 15 configured to cover at least a portion of the first display area when the portion is retracted. In some embodiments, the second cover plate 15 is mounted to the first cover plate 12. In one example, the second cover plate 15 is bolted to the first cover plate 12. In another example, the second cover plate 15 is mounted to the first cover plate 12 by glue or adhesive.

[0058] Referring to FIG. 1, the display device 100 further comprises a flexible printed circuit 6. The flexible printed circuit 6 is connected to the flexible display panel 5 and connected to the main board 17. Figure 3 Figure 4 In some embodiments, the display device further comprises a second chamber c2 between the first cover plate 12 and the second cover plate 15. Optionally, the second chamber c2 is configured to accommodate a portion of the flexible display panel 5. For example, at least a portion of the flexible display panel 5 is accommodated in the second chamber c2 when the flexible display panel 5 is converted from the unfolded state to the folded state. In one example, at least a portion of the flexible display panel 5 corresponding to the first display area 1 is accommodated in the second chamber c2 when the flexible display panel 5 is converted from the unfolded state to the folded state. In some embodiments, the second chamber c2 is further configured to accommodate the coil spring 9 and the pin shaft 10.

[0059] ​​The second chamber c2 can be a sealed chamber or a non-sealed chamber. In one example, the second chamber c2 is not sealed, e.g., is not a waterproof chamber.

[0060] Referring to Figure 3 In some embodiments, the display device further includes a back plate 20. Referring to Figure 3 and Figure 4 In some embodiments, the display device further includes a third chamber c3 between the back plate 20 and the second cover plate 15. In some embodiments, the display device further includes a third adhesive structure 19 configured to fixedly mount the back plate 20 to the second cover plate 15. In some embodiments, the third adhesive structure 19 is configured to form a sealed chamber (the third chamber c3) between the back plate 20 and the second cover plate 15 when the third adhesive structure 19 mounts the back plate 20 to the second cover plate 15. In one example, the third adhesive structure 19 includes an adhesive material, e.g., a waterproof resin adhesive. The third chamber c3 is waterproof.

[0061] Referring to Figure 3 In some embodiments, the display device further includes a breakout board 16. In some embodiments, the third chamber c3 is configured to house the breakout board 16. Optionally, the third chamber c3 is further configured to house one or more health monitoring sensors.

[0062] Referring to Figure 3 In some embodiments, the display device further includes a second opening 12-1 extending through the first cover plate 12 and a third opening 15-1 extending through the second cover plate 15. Optionally, the first cover plate 12 includes a first tubular structure 21 protruding toward the second cover plate 15 (also referring to Figure 15 , Figure 17 and Figure 18 ). The second opening 12-1 is an opening of the first tubular structure 21. Optionally, the second cover plate 15 includes a second tubular structure 22 protruding toward the first cover plate 12 (also referring to Figure 15 , Figure 17 and Figure 18 ). The third opening 15-1 is an opening of the second tubular structure 22. Optionally, the second tubular structure 22 is inserted into the first tubular structure 21. As used herein, a cross-section of a tubular structure can have various suitable shapes, e.g., including irregular annular, regular annular, circular annular, oval annular, rectangular annular, snip corner rectangular annular, rounded corner rectangular annular, square annular, polygonal annular, and elliptical annular. A tubular structure can have a uniform or non-uniform cross-section along its length. The shape and / or size of the cross-section of a tubular structure can vary along its length. The length of a tubular structure can be greater than, equal to, or less than the width of the tubular structure.

[0063] Referring to Figure 3In some embodiments, the display device further includes a flexible printed circuit board 18. In some embodiments, the flexible printed circuit board 18 is connected to a main board 17 housed in a first chamber c1 and to a transition board 16 housed in a third chamber c3. Optionally, the flexible printed circuit board 18 extends from the first chamber c1 through a third opening 15-1 and then into the third chamber c3.

[0064] Reference Figure 3 In some embodiments, the display device further includes one or more sealing rings 13 (e.g., a first sealing ring and a second sealing ring) located between the inner wall of the first tubular structure 21 and the outer wall of the second tubular structure 22 to prevent water from passing through the space between the inner wall of the first tubular structure 21 and the outer wall of the second tubular structure 22. Optionally, the one or more sealing rings 13 are in direct contact with the inner wall of the first tubular structure 21 and the outer wall of the second tubular structure 22.

[0065] Figure 5 This is an exploded view showing the housing, flexible display panel, push rod, and casing in a display device according to some embodiments of the present disclosure. Figure 6 It is when the housing, flexible display panel, push rod, and casing are assembled together along Figure 5 A cross-sectional view of line B-B' in the diagram. Figure 7 This is a schematic diagram showing a portion of a display device, in which a housing, a flexible display panel, a push rod, and a casing are assembled together. As described above, in some embodiments, the push rod 6 and the casing 7 are collectively configured to switch the flexible display panel 5 between a folded state and an unfolded state. In some embodiments, the casing 4 is mounted (e.g., movably mounted) to the casing 7. (See reference...) Figure 5 to Figure 7 In some embodiments, the display device further includes bolts 4-1. In some embodiments, the housing 4 is mounted to the push rod 6 by bolts 4-1.

[0066] In some embodiments, the flexible display panel 5 bends around the support portion 6-2 of the push rod 6. In one example, the housing 4 encloses the portion of the flexible display panel 5 that bends around the support portion 6-2 of the push rod 6, such as... Figure 7 As depicted in the text.

[0067] In some embodiments, refer to Figure 5 to Figure 7In one example, the first protrusion 4-2 is a dovetail protrusion, and the first slot 7-3 is a dovetail slot. In one example, the first slot 7-3 is a blind slot, e.g., the first slot 7-3 does not extend through the wall of the housing along the B-B’ direction. The blind slot only extends partially into the wall of the housing 7.

[0068] In some embodiments, the first slot 7-3 extends only partially along the length direction of the wall of the housing 7. Optionally, the length direction of the wall of the housing 7 is substantially parallel to the direction of slidable movement between the first protrusion 4-2 and the first slot 7-3. The inventors of the present disclosure have found that by extending the first slot 7-3 only partially along the length direction of the wall of the housing 7, the first slot 7-3 is not exposed when the display device is in the unfolded state. In one particular example as depicted in FIG. 1B, the first slot 7-3 is completely covered by the outer shell 4 when the display device is in the unfolded state or the folded state. Figure 2 In one particular example as depicted in FIG. 1B, the first slot 7-3 is completely covered by the outer shell 4 when the display device is in the unfolded state or the folded state.

[0069] In alternative embodiments, the display device further comprises one or more ball bearings between the first protrusion 4-2 and the first slot 7-3. The one or more ball bearings can roll between the first protrusion 4-2 and the first slot 7-3 to reduce the contact area and minimize friction. Adding one or more ball bearings improves the smoothness and efficiency of the sliding motion.

[0070] In alternative embodiments, the display device further comprises a start-stop limit structure configured to limit the limit of slidable movement of the outer shell 4 relative to the housing 7. For example, the start-stop limit structure is configured to prevent overextension of the outer shell 4.

[0071] Figure 8 is an exploded view of a flexible display panel, a push rod, a housing, and a first glue joint structure in a display device in some embodiments of the present disclosure. Figure 9 is a cross-sectional view along the line C-C’ in Figure 8 Figure 10 shows a tensioning mechanism for a flexible display panel in a display device in some embodiments of the present disclosure. In some embodiments, the flexible display panel 5 is bent around the support portion of the push rod 6.

[0072] ​In some embodiments, the portion of the flexible display panel 5 corresponding to the second display area 2 is bonded to the housing 7 via a first adhesive structure 8. In some embodiments, the flexible display panel 5 includes a pad bending region 5-1. Optionally, the pad bending region 5-1 is bonded to the housing 7 via the first adhesive structure 8 to ensure the sealed encapsulation of electronic components within the pad bending region 5-1.

[0073] In some embodiments, the housing 7 further includes a second groove 7-4 configured to at least partially receive the first adhesive structure 8. The first adhesive structure 8 extends at least partially into and is mounted to the second groove 7-4 of the housing 7.

[0074] In some embodiments, the display device further includes a first opening 7-2 extending through the side of the housing 7. In some embodiments, the display device further includes a flexible printed circuit (FPC) connected to the flexible display panel 5 and to a motherboard 17 housed in the first chamber c1. In some embodiments, the flexible printed circuit (FPC) extends through the first opening 7-2 into the first chamber c1 to connect to the motherboard 17.

[0075] Reference Figure 10 In some embodiments, the display device further includes a coil spring 9 and a pin 10. Optionally, the pin 10 is configured to mount the coil spring 9 to the housing. Optionally, the pin 10 is movably mounted to the housing 7. A first portion of the coil spring 9 is connected to the pin 10, and a second portion of the coil spring 9 is connected to the flexible display panel 5, thereby providing a tensioning mechanism for the flexible display panel 5. In one example, adhesive is used to attach the coil spring 9 to the flexible display panel 5. In another example, a locating pin is used to mount the coil spring 9 to the flexible display panel 5.

[0076] Various alternative implementations can be practiced in this disclosure. In one alternative embodiment, a tension rope can replace a coil spring as the tensioning mechanism. A first portion of the tension rope is mounted to a pin, and a second portion of the tension rope is mounted to the flexible display panel, thereby providing a tensioning mechanism for the flexible display panel.

[0077] Figure 11 This is a schematic diagram illustrating a coil spring assembly in a display device according to some embodiments of the present disclosure. Figure 12 It is by Figure 11 A perspective view of a portion of a display device assembled with coil springs, as depicted in the image. Figure 13 It is when the second cover plate, housing, coil spring, and pin are assembled together and the assembly is flipped up and down that the along Figure 11 A cross-sectional view of the D-D' line in the diagram. Similarly, Figure 12 This is a perspective view of a portion of the display device when the second cover 15, housing 7, coil spring 9, and pin 10 are assembled together and the components are flipped up and down. Figure 11A first side (e.g., an inner side) of the housing 7 is shown. Figure 12 and Figure 13 A second side (e.g., an outer side) of the housing 7 is shown. Referring to Figure 11 to Figure 13 In some embodiments, the second cover plate 15 includes a second protrusion 15-2, and in some embodiments, the housing 7 includes a third slot 7-4. The second protrusion 15-2 and the third slot 7-4 are configured to interlock with each other, thereby securing the pin shaft 10. The pin shaft 10 passes through the coil spring 9, thereby enabling the fixation of the coil spring 9.

[0078] Figure 14 is a perspective view of a portion of a display device in accordance with some embodiments of the present disclosure. Figure 15 is Figure 14 is an exploded view of a portion of the display device depicted in Figure 16 is a cross-sectional view along line E-E’ in Figure 14 Referring to Figure 14 to Figure 16 In some embodiments, the main plate 17 is mounted (e.g., fixedly mounted) to the housing 7. In one example, the main plate 17 is mounted to the housing 7 by glue. In another example, the main plate 17 is bolted to the housing 7.

[0079] In some embodiments, the housing 7 further includes a fourth slot 7-5 configured to accommodate the second glue structure 14. The second glue structure 14 is configured to mount the first cover plate 12 to the housing 7, thereby forming a first chamber cl. In some embodiments, the first cover plate 12 is mounted to the housing 7 by a combination of the second glue structure 14 and a bolt.

[0080] In some embodiments, the first cover plate 12 is mounted to the second cover plate 15, thereby forming a second chamber c2.

[0081] In some embodiments, the back plate 20 is mounted to the second cover plate 15 by a third glue structure 19, thereby forming a third chamber c3. In some embodiments, the second cover plate 15 further includes a fifth slot 15-3 configured to accommodate the third glue structure 19.

[0082] Referring to Figure 3 In some embodiments, the display device further includes a second opening 12-1 extending through the first cover plate 12, and a third opening 15-1 extending through the second cover plate 15. Optionally, the third opening 15-1 is at least partially located in the second opening 12-1.

[0083] In some embodiments, the first cover plate 12 includes a first tubular structure 21 protruding towards the second cover plate 15. The second opening 12-1 is the opening of the first tubular structure 21. Optionally, the second cover plate 15 includes a second tubular structure 22 protruding towards the first cover plate 12. The third opening 15-1 is the opening of the second tubular structure 22. Optionally, the second tubular structure 22 is inserted into the first tubular structure 21. In some embodiments, the adapter flexible printed circuit 18 extends from the first chamber cl, through the third opening 15-1, and then into the third chamber c3.

[0084] Figure 17 A waterproof mechanism in a display device according to some embodiments of the present disclosure is shown. Figure 18 For Figure 17 An enlarged view of the enlarged region ZR depicted in FIG. 1. Referring to Figure 17 and Figure 18 , the shaded arrows represent hypothetical water infiltration paths that are blocked by the waterproof mechanism in the display device. As shown in Figure 17 and Figure 18 , water in the hypothetical water infiltration paths would have to first overcome gravity (as shown by the second shaded arrow in Figure 18 ) to flow from the second chamber c2 into the gap between the second cover plate 15 and the first cover plate 12. Assuming the water overcomes the gravity and passes through the gap, the water would have to overcome several additional barriers to enter the first chamber cl. First, the water that passes through the gap would have to overcome gravity again to enter the first chamber cl (as shown by the last shaded arrow in Figure 18 ). Second, the water that overcomes the gravity would have to overcome the barrier of the first sealing ring 13-1, which is an interference fit sealing ring. Third, the water that passes through the first sealing ring 13-1 would have to overcome the barrier of the second sealing ring 13-2, which is also an interference fit sealing ring. In addition, the display device also includes a water storage space q between the first sealing ring 13-1 and the second sealing ring 13-2. The water storage space q provides a buffer for the water that flows through the first sealing ring 13-1 before it encounters the second sealing ring 13-2, if any. The water storage space q also prevents high pressure water from passing through the first sealing ring 13-1 and the second sealing ring 13-2 due to the high pressure.

[0085] In some embodiments, the display device also includes a layer of hydrophobic material coated on the inner wall of the second chamber c2. Optionally, the layer of hydrophobic material is both hydrophobic and oleophobic. Examples of suitable materials for making the layer of hydrophobic material include fluoropolymer materials. In the event that water enters the second chamber c2, the user can tilt the display device to cause the water to quickly flow out.

[0086] Referring to Figure 1 to Figure 18In some embodiments, the display device includes a housing 7, a first cover plate 12, a second cover plate 15, and a back plate 20. The display device includes a first chamber c1 between the housing 7 and the first cover plate 12, a second chamber c2 between the first cover plate 12 and the second cover plate 15, and a third chamber c3 between the second cover plate 15 and the back plate 20. Optionally, the first chamber c1 is a waterproof chamber. Optionally, the third chamber c3 is a waterproof chamber.

[0087] In some embodiments, referring to Figure 1 to Figure 18 , the display device further includes a second opening 12-1 extending through the first cover plate 12, a third opening 15-1 extending through the second cover plate 15, a first sealing ring 13-1, and a second sealing ring 13-2. Optionally, the third opening 15-1 is at least partially located in the second opening 12-1. Optionally, the third opening connects the first chamber c1 and the third chamber c3.

[0088] In some embodiments, the first cover plate 12 includes a first tubular structure 21 protruding towards the second cover plate 15. The second opening 12-1 is an opening of the first tubular structure 21. Optionally, the second cover plate 15 includes a second tubular structure 22 protruding towards the first cover plate 12. The third opening 15-1 is an opening of the second tubular structure 22. Optionally, the second tubular structure 22 is inserted into the first tubular structure 21. Optionally, the first sealing ring 13-1 and the second sealing ring 13-2 are located between an inner wall of the first tubular structure 21 and an outer wall of the second tubular structure 22 to prevent water from passing through a space between the inner wall of the first tubular structure 21 and the outer wall of the second tubular structure 22. Optionally, the first sealing ring 13-1 and the second sealing ring 13-2 are in direct contact with the inner wall of the first tubular structure 21 and in direct contact with the outer wall of the second tubular structure 22.

[0089] In some embodiments, referring to Figure 17 and Figure 18 , the second cover plate 15 includes a baffle BR and a main body MB, the baffle BR protruding away from the main body MB towards the first cover plate 12. The baffle BR is in direct contact with the first cover plate 12.

[0090] In some embodiments, referring to Figure 17 and Figure 18 , the display device includes a groove CG extending into the second cover plate 15, the baffle BR spacing the second chamber c2 from the groove CG. A portion of the first cover plate 12 extends into the groove CG, thereby interlocking with the second cover plate 15. The portion of the first cover plate 12 extending into the groove CG is at least partially in contact with the first sealing ring 13-1 and at least partially in contact with the second sealing ring 13-2.

[0091] In some embodiments, referring to Figure 17 and Figure 18The display device further includes a water storage space between the first sealing ring 13-1 and the second sealing ring 13-2, the water storage space being configured to further prevent water from passing through the second sealing ring 13-2.

[0092] In some embodiments, referring to Figure 1 to Figure 18 The display device further includes a main board 17 accommodated in the first chamber c1, a conversion board 16 accommodated in the third chamber c3, and a conversion flexible printed circuit 18 connected to the main board 17 accommodated in the first chamber c1 and connected to the conversion board 16 accommodated in the third chamber c3. Optionally, the conversion flexible printed circuit 18 extends from the first chamber c1, through the third opening 15-1, and then into the third chamber c3.

[0093] In some embodiments, referring to Figure 1 to Figure 18 The display device further includes a second bonding structure 14 configured to fixedly mount the first cover plate 12 to the housing 7, thereby forming the first chamber c1.

[0094] In some embodiments, referring to Figure 1 to Figure 18 The housing 7 further includes a fourth groove 7-5 configured to accommodate the second bonding structure 14.

[0095] In some embodiments, referring to Figure 1 to Figure 18 The display device further includes a third bonding structure 19 configured to fixedly connect the back plate 20 to the second cover plate 15, thereby forming the third chamber c3.

[0096] In some embodiments, referring to Figure 1 to Figure 18 The second cover plate 15 further includes a fifth groove 15-3 configured to accommodate the third bonding structure 19.

[0097] In some embodiments, referring to Figure 1 to Figure 18 The display device further includes the flexible display panel 5 configured to be converted between the folded state and the unfolded state, the push rod 6, and the housing 7. Optionally, the push rod 6 and the housing 7 are collectively configured to convert the flexible display panel 5 between the folded state and the unfolded state. Optionally, the second chamber c2 is configured to accommodate a portion of the flexible display panel 5.

[0098] In some embodiments, the flexible display panel 5 is bent around a support portion of the push rod 6, the push rod 6 is slidably mounted to the housing 7, and the push rod 6 is slidably movable relative to the housing 7. Optionally, the flexible display panel 5 is configured to be converted between the folded state and the unfolded state as the push rod 6 is slidably moved relative to the housing 7.

[0099] In some embodiments, referring to Figure 1 to Figure 18The display device further comprises a first cementing structure 8 configured to fixedly mount the flexible display panel 5 to the housing 7. Optionally, the first cementing structure 8 is configured to form a sealed chamber between the flexible display panel 5 and the housing 7. Optionally, the flexible display panel 5 comprises a pad bending region 5-1. Optionally, the first cementing structure 8 is configured to fixedly mount the pad bending region 5-1 of the flexible display panel 5 to the frame portion of the housing 7.

[0100] In some embodiments, the housing 7 further comprises a second slot 7-4 configured to at least partially accommodate the first cementing structure 8. The first cementing structure 8 at least partially extends into the second slot 7-4 of the housing 7 and is mounted to the second slot 7-4.

[0101] In some embodiments, the push rod 6 is a comb-shaped push rod comprising a plurality of teeth 6-1. In some embodiments, the housing 7 comprises a plurality of slots 7-1 configured to accommodate the plurality of teeth 6-1 of the push rod 6. In some embodiments, the outer shell 4 moves together with the push rod 6 when the push rod 6 is slidably moved relative to the housing 7. Optionally, at least one of the plurality of teeth 6-1 of the push rod 6 comprises a start-stop limiting structure 6-2 configured to define a limit of the slidable movement of the push rod 6 relative to the housing 7.

[0102] In some embodiments, with reference to Figure 1 to Figure 18 The display device further comprises an outer shell 4 connected to the housing 7 and connected to the push rod 6. Optionally, the outer shell 4 wraps around the portion of the flexible display panel 5 that is bent around the support portion of the push rod 6. Optionally, the outer shell 4 further wraps around the portion of the first display region 1 when at least a portion of the first display region 1 is retracted. Optionally, the outer shell 4 further wraps around the side edge of the flexible display panel 5.

[0103] In some embodiments, the outer shell 4 comprises a first protrusion 4-2 and the housing 7 comprises a first slot 7-3. Optionally, the first protrusion 4-2 and the first slot 7-3 are configured to interlock with each other, thereby mounting the outer shell 4 to the housing 7. Optionally, the first slot 7-3 is a blind slot.

[0104] In some embodiments, with reference to Figure 1 to Figure 18 The second cover plate 15 is configured to cover the portion of the first display region 1 when at least a portion of the first display region 1 is retracted. Optionally, the second cover plate 15 is mounted to the first cover plate 12.

[0105] In some embodiments, with reference to Figure 1 to Figure 18The display device further comprises a coil spring 9 and a pin shaft 10. Optionally, the pin shaft 10 is configured to mount the coil spring 9 to the housing. Optionally, the pin shaft 10 is movably mounted to the housing 7. A first portion of the coil spring 9 is mounted to the pin shaft 10, and a second portion of the coil spring 9 is connected to the flexible display panel 5, thereby providing a tensioning mechanism for the flexible display panel 5. Optionally, the coil spring 9 and the pin shaft 10 are housed in the second chamber c2. Optionally, the second cover plate 15 comprises a second protrusion 15-2, and the housing 7 comprises a third slot 7-4. The second protrusion 15-2 and the third slot 7-4 are configured to interlock with each other to secure the pin shaft 10. The pin shaft 10 passes through the coil spring 9 to achieve the fixation of the coil spring 9.

[0106] In some embodiments, referring to Figure 1 to Figure 18 The display device further comprises a first opening 7-2 extending through a side of the housing 7, and a flexible printed circuit (FPC) connected to the flexible display panel 5 and to the main board 17 housed in the first chamber cl. Optionally, the flexible printed circuit FPC extends through the first opening 7-2 into the first chamber cl to be connected to the main board 17.

[0107] In some embodiments, referring to Figure 1 to Figure 18 The display device further comprises an adapter board 16 and one or more health monitoring sensors. Optionally, the third chamber c3 is configured to house the adapter board 16 and the one or more health monitoring sensors.

[0108] The foregoing description of embodiments of the application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. The description was presented as illustrative of the broadest aspects of the application that are and were anticipated to be within the scope of the application. Obviously, many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to best explain the principles of the application and its best mode of practical application to thereby enable others skilled in the art to best utilize the application and various embodiments with various modifications as are suited to the particular use or implementation. The scope of the application is intended to be defined by the claims appended hereto and their equivalents, wherein all terms are meant to be construed in their broadest reasonable sense unless otherwise indicated. Accordingly, the terms "the invention," "the present invention," and the like, do not necessarily limit the scope of the claims to the specific embodiment described. Reference to an "example embodiment" or "exemplary embodiment” does not necessarily mean that the described embodiment is the only embodiment or that the described embodiment is the best or only way to implement the application. The application is limited only by the claims appended hereto. Furthermore, these claims can involve use of "first," "second," and the like, to denote name elements. Such terminology should not be construed as limiting the claimor claims to a specific number of elements. Any advantages and benefits of the described embodiments are not to be construed as limiting the scope of the application. It is to be understood that the application can be carried out by specifically different embodiments without departing from the scope of the present application. Furthermore, elements and components of the disclosure are not to contribute to the public beyond what is explicitly described in the attached claims.

Claims

1. A display device, comprising: case; First cover plate; Second cover plate; Back panel; A first chamber is located between the housing and the first cover plate; A second chamber, located between the first cover plate and the second cover plate; and The third chamber is located between the second cover plate and the back plate; Wherein, the first chamber is a waterproof chamber; and The third chamber is a waterproof chamber; The display device further includes: The second opening extends through the first cover plate; and A third opening extends through the second cover plate; Wherein, the third opening connects the first chamber and the third chamber; and The third opening is at least partially located within the second opening; The display device further includes: The motherboard is housed in the first chamber; The adapter plate, which is housed in the third chamber; and A flexible printed circuit is connected to the mainboard housed in the first chamber and to the adapter board housed in the third chamber; The flexible printed circuit extends from the first chamber, through the third opening, into the third chamber.

2. The display device according to claim 1, wherein, The second cover plate includes a baffle and a main body, the baffle protruding away from the main body toward the first cover plate; as well as The baffle is in direct contact with the first cover plate, thereby sealing off the second chamber.

3. The display device according to claim 2, further comprising a groove extending into the second cover plate; in, The baffle separates the second chamber from the groove; A portion of the first cover plate extends into the groove, thereby interlocking with the second cover plate; as well as The portion of the first cover plate extending into the groove contacts at least partially the first sealing ring and at least partially the second sealing ring.

4. The display device according to any one of claims 1 to 3, wherein, The first cover plate includes a first tubular structure protruding toward the second cover plate, and the second opening is an opening of the first tubular structure; The second cover plate includes a second tubular structure projecting toward the first cover plate, and the third opening is an opening in the second tubular structure; and The second tubular structure is inserted into the first tubular structure.

5. The display device according to claim 4 further includes a first sealing ring and a second sealing ring located between the inner wall of the first tubular structure and the outer wall of the second tubular structure, thereby preventing water from passing between the inner wall of the first tubular structure and the outer wall of the second tubular structure.

6. The display device according to claim 5 further includes a water storage space located between the first sealing ring and the second sealing ring, which is configured to further prevent water from passing through the second sealing ring.

7. The display device according to any one of claims 1 to 3, further comprising a second adhesive structure configured to securely mount the first cover plate to the housing, thereby forming the first chamber; in, The housing also includes a fourth groove configured to receive the second adhesive structure.

8. The display device according to any one of claims 1 to 3, further comprising a third adhesive structure configured to securely mount the back plate to the second cover plate, thereby forming the third chamber; in, The second cover plate also includes a fifth groove configured to receive the third adhesive structure.

9. The display device according to any one of claims 1 to 3, further comprising: A flexible display panel configured to switch between a folded state and an unfolded state; as well as Putter; The push rod and the housing are configured together to switch the flexible display panel between the folded state and the unfolded state; and The second chamber is configured to house a portion of the flexible display panel.

10. The display device according to claim 9, wherein, The flexible display panel bends around the support portion of the push rod; The push rod is slidably mounted to the housing; The push rod is slidably movable relative to the housing; as well as The flexible display panel is configured to switch between the folded state and the unfolded state as the push rod moves slidably relative to the housing.

11. The display device according to claim 9, wherein, The push rod is a comb-shaped push rod, which includes multiple teeth; The housing includes a plurality of slots configured to receive the plurality of teeth of the push rod; and At least one of the plurality of teeth of the push rod includes a start-stop limit structure configured to limit the limits of slidable movement of the push rod relative to the housing.

12. The display device of claim 9, further comprising a first adhesive structure configured to mount the flexible display panel to the housing; and The first adhesive structure is configured to form a sealed cavity between the flexible display panel and the housing.

13. The display device according to claim 12, wherein, The flexible display panel includes a pad bending area; and The first adhesive structure is configured to securely mount the bent area of ​​the pads of the flexible display panel to the frame of the housing.

14. The display device according to claim 12, wherein, The housing also includes a second groove configured to at least partially accommodate the first adhesive structure; as well as The first adhesive structure extends at least partially into the second groove of the housing and is mounted into the second groove.

15. The display device according to claim 10, further comprising: Putter; as well as A housing, which is mounted to the housing and to the push rod; The display device has a first display area and a second display area; and The first display area can be slid open to increase the total display area of ​​the display device, or it can be retracted to reduce the total display area of ​​the display device; The outer casing encloses the portion of the flexible display panel that is bent around the support portion of the push rod; When at least a portion of the first display area retracts, the housing also covers said portion of the first display area; and The outer casing also covers the side edges of the flexible display panel.

16. The display device according to claim 15, wherein, The outer shell includes a first protrusion; The housing includes a first groove; The first protrusion and the first groove are configured to interlock with each other, thereby mounting the housing to the casing; as well as The first slot is a blind slot.

17. The display device according to claim 9, further comprising: coil spring; as well as Pin; The pin is configured to mount the coil spring to the housing; The pin is movably mounted to the housing; The first portion of the coil spring is mounted to the pin, and the second portion of the coil spring is mounted to the flexible display panel, thereby providing a tensioning mechanism for the flexible display panel; and The coil spring and the pin are housed in the second chamber.

18. The display device according to claim 17, wherein, The second cover plate includes a second protrusion; The housing includes a third groove; The second protrusion and the third groove are configured to interlock with each other, thereby securing the pin; and The pin passes through the coil spring, thereby fixing the coil spring in place.

19. The display device according to claim 9, further comprising: The motherboard is housed in the first chamber; The first opening extends through the side of the housing; as well as A flexible printed circuit is connected to the flexible display panel and to the motherboard; The flexible printed circuit extends through the first opening into the first chamber to connect to the motherboard.

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