Pivotable support device and display device

Abstract

A pivotable support apparatus for supporting a foldable display panel (130) is provided. The pivotable support apparatus includes a cladding plate (100) having a first side (101) and a second side (102), a first rotating plate (310) rotatably attached to the first side (101), a second rotating plate (320) rotatably attached to the second side (102), a first sliding plate (210) slidably attached to the first rotating plate (310), a second sliding plate (220) slidably attached to the second rotating plate (320), a first frame (110) rotatably attached to the first sliding plate (210), and a second frame (120) rotatably attached to the second sliding plate (220).

Description

Technical Field

[0001] This invention relates to display technology, and more specifically, to a pivotable support device and a display device. Background Technology

[0002] In recent years, portable display devices, such as foldable flexible display devices, have become a focus of research and development in display technology. Flexible display devices are bendable or deformable display devices with flexible display panels. Examples of flexible display devices include flexible organic light-emitting diode (OLED) devices, flexible electrophoretic display (EPD) devices, and flexible liquid crystal display (LCD) devices. As a new generation of display devices, flexible display devices are thinner and more compact, with high contrast, high responsiveness, and high brightness. They also offer full color and wide viewing angles. Flexible display devices have wide applications in mobile phones, personal digital assistants (PDAs), digital cameras, airborne displays, laptops, wall-mounted televisions, and various military applications. Flexible display devices include flexible array substrates. The substrate of the flexible array substrate can be made of flexible materials such as plastics. Summary of the Invention

[0003] In one aspect, this disclosure provides a pivotable support device for supporting a foldable display panel, comprising: a cover plate having a first side and a second side; a first rotating plate rotatably attached to the first side; a second rotating plate rotatably attached to the second side; a first sliding plate slidably attached to the first rotating plate; a second sliding plate slidably attached to the second rotating plate; a first frame rotatably attached to the first sliding plate; and a second frame rotatably attached to the second sliding plate.

[0004] Optionally, in the folded state of the pivotable support device, the first included angle between the first sliding plate and the second sliding plate or between the first rotating plate and the second rotating plate is greater than the second included angle between the first frame and the second frame.

[0005] Optionally, in the folded state of the pivotable support device, the first rotating plate and the second rotating plate are spaced apart by a first distance at the positions where they are respectively connected to the cover plate; the first sliding plate and the second sliding plate are spaced apart by a second distance at the positions where they are respectively connected to the first frame and the second frame; and the first distance is greater than the second distance.

[0006] Optionally, in the unfolded state of the pivotable support device, the first rotating plate, the second rotating plate, the first sliding plate, and the second sliding plate constitute a portion of a substantially flat surface for supporting the foldable display panel.

[0007] Optionally, the first rotating plate includes at least one first insert, and the first sliding plate includes at least one first groove configured to receive the first insert to allow the first sliding plate to slidably move relative to the first rotating plate; during the unfolding of the pivotable support device, the first sliding plate and the first rotating plate are configured to move toward each other; and during the folding of the pivotable support device, the first sliding plate and the first rotating plate are configured to move away from each other.

[0008] Optionally, the second rotating plate includes at least one second insert, and the second sliding plate includes at least one second groove configured to receive the second insert to allow the second sliding plate to move relative to the second rotating plate; during the unfolding of the pivotable support device, the second sliding plate and the second rotating plate are configured to move toward each other; and during the folding of the pivotable support device, the second sliding plate and the second rotating plate are configured to move away from each other.

[0009] Optionally, the first rotating plate includes at least one first shaft, the first side includes at least one first receiving hole configured to receive the first shaft; the first sliding plate includes at least one third shaft, the first frame includes at least one third receiving hole configured to receive the third shaft; the first rotating plate and the first side are configured to rotate relative to each other about the first shaft; and the first sliding plate and the first frame are configured to rotate relative to each other about the third shaft.

[0010] Optionally, the second rotating plate includes at least one second shaft, the second side includes at least one second receiving hole configured to receive the second shaft; the second sliding plate includes at least one fourth shaft, the second frame includes at least one fourth receiving hole configured to receive the fourth shaft; the second rotating plate and the second side are configured to rotate relative to each other about the second shaft; and the second sliding plate and the second frame are configured to rotate relative to each other about the fourth shaft.

[0011] Optionally, the pivotable support device further includes a support plate housed by the cladding plate, the support plate being movable between a first position and a second position.

[0012] Optionally, in the unfolded state of the pivotable support device, the support plate is in the first position, and the first rotating plate, the second rotating plate, the first sliding plate, the second sliding plate, and the support plate constitute a portion of a substantially flat surface for supporting the foldable display panel; and in the folded state of the pivotable support device, the support plate is accommodated between the first side and the second side of the cladding plate in the second position.

[0013] Optionally, the first frame includes a first limiting post; the second frame includes a second limiting post; the support plate includes a first sliding groove configured to receive the first limiting post and a second sliding groove configured to receive the second limiting post; the first limiting post is configured to be slidably attached to the support plate; and the second limiting post is configured to be slidably attached to the support plate.

[0014] Optionally, from the unfolded state to the folded state, the first limiting post and the second limiting post are configured to drive the support plate from the first position to the second position; and the support plate in the second position is further away from the position where the first rotating plate and the second rotating plate are connected to the cover plate compared to the first position.

[0015] Optionally, the first frame includes a first side post, the cladding includes a first side receiving hole configured to receive the first side post, thereby rotatably attaching the first frame to the cladding; and the second frame includes a second side post, the cladding includes a second side receiving hole configured to receive the second side post, thereby rotatably attaching the second frame to the cladding.

[0016] Optionally, the pivotable support device further includes a hinge structure comprising a first spindle and a second spindle; and a synchronizing gear configured to synchronize the rotation of the first spindle and the second spindle.

[0017] Optionally, the synchronizing gear includes a first gear and a second gear, the first gear and the second gear being configured to rotate about the first main shaft and the second main shaft, respectively; the first gear and the second gear being configured to engage with each other; the first frame including a third gear configured to engage with the first gear; and the second frame including a fourth gear configured to engage with the second gear.

[0018] Optionally, the first frame includes a first limiting post and a first side post; the first limiting post and the first side post are respectively connected to the third gear on opposite sides of the third gear; the second frame includes a second limiting post and a second side post; the second limiting post and the second side post are respectively connected to the fourth gear on opposite sides of the fourth gear.

[0019] Optionally, the second included angle is in the range of 0 to 5 degrees; and the first included angle is in the range of 10 to 50 degrees.

[0020] Optionally, the ratio of the first distance to the second distance is in the range of 3 to 100.

[0021] In another aspect, this disclosure provides a display device including a foldable display panel and a pivotable support device described herein or manufactured by the methods described herein.

[0022] Optionally, in the folded state of the display device, the first rotating plate and the second rotating plate are spaced apart by a first distance at their respective connections to the cover plate; the first sliding plate and the second sliding plate are spaced apart by a second distance at their respective connections to the first frame and the second frame; the first distance is greater than the second distance; the portion of the foldable display panel that contacts the first frame and the portion of the foldable display panel that contacts the second frame are spaced apart by a third distance; and the first distance is greater than the third distance. Attached Figure Description

[0023] The following figures are merely illustrative examples based on various disclosed embodiments and are not intended to limit the scope of the invention.

[0024] Figure 1 This is a perspective view of a pivotable support device in an unfolded state and a foldable display panel supported thereon, according to some embodiments of the present disclosure.

[0025] Figure 2 This is an exploded view of a pivotable support device in an unfolded state and a foldable display panel supported thereon, according to some embodiments of the present disclosure.

[0026] Figure 3 This is a perspective view of a pivotable support device in an unfolded state according to some embodiments of the present disclosure.

[0027] Figure 4 This is an exploded view of a pivotable support device in an unfolded state according to some embodiments of the present disclosure.

[0028] Figure 5 This is a perspective view of a first frame according to some embodiments of the present disclosure.

[0029] Figure 6A yes Figure 5 A magnified view of the first frame in the first magnified area.

[0030] Figure 6B It corresponds to Figure 5 The magnified view of the second frame in the first magnified area.

[0031] Figure 7A This is a perspective view of the first sliding plate according to some embodiments of the present disclosure.

[0032] Figure 7B This is a perspective view of the second sliding plate according to some embodiments of the present disclosure.

[0033] Figure 8A This is a perspective view of the first rotating plate according to some embodiments of the present disclosure.

[0034] Figure 8B This is a perspective view of the second rotating plate according to some embodiments of the present disclosure.

[0035] Figure 9 This is a perspective view of a cladding plate according to some embodiments of the present disclosure.

[0036] Figure 10 yes Figure 9 An enlarged view of the cladding in the second enlarged area.

[0037] Figure 11 This is a cross-sectional side view of a pivotable support device in an unfolded state according to some embodiments of the present disclosure.

[0038] Figure 12 This is a cross-sectional side view of a pivotable support device in a folded state according to some embodiments of the present disclosure.

[0039] Figure 13A This is a perspective view of a support plate according to some embodiments of the present disclosure.

[0040] Figure 13B This is a perspective view of a support plate according to some embodiments of the present disclosure.

[0041] Figure 14 This is a cross-sectional side view of a display device in an unfolded state according to some embodiments of the present disclosure.

[0042] Figure 15 This is a cross-sectional side view of a display device in a folded state according to some embodiments of the present disclosure. Detailed Implementation

[0043] This disclosure will now be described in more detail with reference to the following embodiments. It should be noted that the following description of some embodiments presented herein is for illustrative and descriptive purposes only. It is not exhaustive or limited to the precise forms disclosed.

[0044] This disclosure provides, in particular, a pivotable support device and a display device that substantially eliminate one or more problems caused by the limitations and disadvantages of the prior art. In one aspect, this disclosure provides a pivotable support device for supporting a foldable display panel. In some embodiments, the pivotable support device includes a cover plate having a first side and a second side; a first rotating plate rotatably attached to the first side; a second rotating plate rotatably attached to the second side; a first sliding plate slidably attached to the first rotating plate; a second sliding plate slidably attached to the second rotating plate; a first frame rotatably attached to the first sliding plate; and a second frame rotatably attached to the second sliding plate.

[0045] Figure 1 This is a perspective view of a pivotable support device in an unfolded state and a foldable display panel supported thereon, according to some embodiments of the present disclosure. Figure 2 This is an exploded view of a pivotable support device in an unfolded state and a foldable display panel supported thereon, according to some embodiments of this disclosure. (Refer to...) Figure 1 and Figure 2 In some embodiments, the pivotable support device includes a cladding plate 100 and a first frame 110 and a second frame 120 attached to the cladding plate 100. Optionally, the pivotable support device further includes a first rear cover 140 and a second rear cover 150 respectively covering the rear sides of the first frame 110 and the second frame 120. Figure 2 As shown, the foldable display panel 130 can be supported on the front side of the first frame 110 and the second frame 120.

[0046] Figure 3 This is a perspective view of a pivotable support device in an unfolded state according to some embodiments of the present disclosure. Figure 4 This is an exploded view of a pivotable support device in an deployed state according to some embodiments of this disclosure. (Refer to...) Figure 3 and Figure 4 In some embodiments, the pivotable support device further includes a first rotating plate 310, a second rotating plate 320, a first sliding plate 210, a second sliding plate 220, and a support plate 230. The cladding plate 100 has a first side 101 and a second side 102.

[0047] Figure 5 This is a perspective view of a first frame according to some embodiments of the present disclosure. Figure 6A for Figure 5An enlarged view of the first frame in the first enlarged region ZR1. (Refer to...) Figure 5 and Figure 6A In some embodiments, the first frame includes a third receiving hole 560, a first limiting post 550, a first side post 570, and a third gear 530.

[0048] The first limiting post 550 and the first side post 570 are located on opposite sides of the third gear 530.

[0049] In some embodiments, the second frame has a structure similar to that of the first frame. Figure 6B It corresponds to Figure 5 An enlarged view of the second frame in the first enlarged region. In one example, the second frame includes a fourth receiving hole 561, a second limiting post 551, a second side post 571, and a fourth gear 531.

[0050] The second limiting post 551 and the first side post 570 are located on opposite sides of the fourth gear 531.

[0051] Figure 7A This is a perspective view of a first sliding plate according to some embodiments of this disclosure. (Refer to...) Figure 7A In some embodiments, the first sliding plate includes at least one first groove 460 and at least one third shaft 470. For example... Figure 7A As shown, in one example, the first sliding plate includes a plurality of first slots and a plurality of third axes. For example, the first sliding plate may have two third axes located on two opposite sides of the first sliding plate in a direction parallel to the direction in which the pivotable support device is folded or unfolded. In another example, the arrangement direction of the two third axes located on two opposite sides of the first sliding plate is parallel to the arrangement direction of the plurality of first slots.

[0052] Figure 7B This is a perspective view of the second sliding plate according to some embodiments of this disclosure. See also Figure 7B In some embodiments, the second sliding plate includes at least one second groove 461 and at least one fourth shaft 471. For example... Figure 7B As shown, in one example, the second sliding plate includes a plurality of second slots and a plurality of fourth axes. For example, the second sliding plate may have two fourth axes located on two opposite sides of the second sliding plate in a direction parallel to the direction in which the pivotable support device is folded or unfolded. In another example, the arrangement direction of the two fourth axes located on two opposite sides of the second sliding plate is parallel to the arrangement direction of the plurality of second slots.

[0053] Figure 8A This is a perspective view of a first rotating plate according to some embodiments of the present disclosure. (Refer to...) Figure 8AIn some embodiments, the first rotating plate includes at least one first insert 450 and at least one first shaft 480. For example... Figure 8A As shown, in one example, the first rotating plate includes a plurality of first inserts and a plurality of first shafts. For example, the first rotating plate may have two first shafts located on two opposite sides of the first rotating plate in a direction parallel to the direction in which the pivotable support device is folded or unfolded. In another example, the arrangement direction of the two first shafts located on two opposite sides of the first rotating plate is parallel to the arrangement direction of the plurality of first inserts.

[0054] Figure 8B This is a perspective view of the second rotating plate according to some embodiments of this disclosure. (Refer to...) Figure 8B In some embodiments, the second rotating plate includes at least one second insert 451 and at least one second shaft 481. For example... Figure 8B As shown, in one example, the second rotating plate includes a plurality of second inserts and a plurality of second shafts. For example, the second rotating plate may have two second shafts located on two opposite sides of the second rotating plate in a direction parallel to the direction in which the pivotable support device is folded or unfolded. In another example, the arrangement direction of the two second shafts located on two opposite sides of the second rotating plate is parallel to the arrangement direction of the plurality of second inserts.

[0055] Figure 9 This is a perspective view of a cladding plate according to some embodiments of the present disclosure. Figure 10 yes Figure 9 An enlarged view of the cladding plate in the second enlarged region ZR2. (Reference) Figure 9 and Figure 10 In some embodiments, the first side 101 includes at least one first receiving hole 630, and the second side 102 includes at least one second receiving hole 640. In some embodiments, the cladding includes a first side receiving hole 580 and a second side receiving hole 590.

[0056] In some embodiments, the pivotable support device further includes a hinge structure. The hinge structure includes a first spindle 510 and a second spindle 520, which are respectively provided with a first axis of rotation and a second axis of rotation parallel to each other.

[0057] Figure 11 This is a cross-sectional side view of a pivotable support device in an unfolded state according to some embodiments of the present disclosure. Figure 12 This is a cross-sectional side view of a pivotable support device in a folded state according to some embodiments of this disclosure. Reference Figure 11 and Figure 12In some embodiments, the pivotable support device further includes synchronizing gears configured to synchronize the rotation of the first spindle 510 and the second spindle 520. The synchronizing gears include a first gear 430 and a second gear 440 configured to rotate about the first spindle 510 and the second spindle 520, respectively. The first gear 430 and the second gear 440 are configured to engage with each other. The first frame 110 also includes a third gear 530 configured to engage with the first gear 430. The second frame 120 also includes a fourth gear 531 configured to engage with the second gear 440.

[0058] Similarly, on opposite sides of the first spindle 510 and the second spindle 520, the pivotable support device may include additional gears (e.g., see...). Figure 4 Gears 410 and 420 in the middle.

[0059] Reference Figure 8A , Figure 8B and Figures 9 to 12 In some embodiments, the first rotating plate 310 is rotatably attached to the first side portion 101. In some embodiments, the first rotating plate 310 includes at least one first shaft 480, and the first side portion 101 includes at least one first receiving hole 630 configured to receive the first shaft 480. The first rotating plate 310 and the first side portion 101 are configured to rotate relative to each other about the first shaft 480. As used herein, the term "rotatably attached" means that two components are engaged such that the two components are mechanically coupled but can still rotate relative to each other about an axis (e.g., about the first shaft 480). For example, the first rotating plate 310 is attached to the first side portion 101 in such a way that the first rotating plate 310 is rotatable between at least a first rotational position and a second rotational position.

[0060] In some embodiments, the second rotating plate 320 is rotatably attached to the second side portion 102. In some embodiments, the second rotating plate 320 includes at least one second shaft 481, and the second side portion 102 includes at least one second receiving hole 640 configured to receive the second shaft 481. The second rotating plate 320 and the second side portion 102 are configured to rotate relative to each other about the second shaft 481.

[0061] In some embodiments, the first frame 110 is rotatably attached to the first sliding plate 210. In some embodiments, the first sliding plate 210 includes at least one third axis 470, and the first frame 110 includes at least one third receiving hole 560 configured to receive the third axis 470. The first sliding plate 210 and the first frame 110 are configured to rotate relative to each other about the third axis 470.

[0062] In some embodiments, the second frame 120 is rotatably attached to the second sliding plate 220. In some embodiments, the second sliding plate 220 includes at least one fourth shaft 471, and the second frame 120 includes at least one fourth receiving hole 561 configured to receive the fourth shaft 471. The second sliding plate 220 and the second frame 120 are configured to rotate relative to each other about the fourth shaft 471.

[0063] Because the first axis 480 and the third axis 470 are different from each other, during the transition between the unfolded and folded states of the pivotable support device, the first rotating plate 310 and the first frame 110 may have an angle greater than zero; for example, the first rotating plate 310 and the first frame 110 may not be parallel to each other. Because the second axis 481 and the fourth axis 471 are different from each other, during the transition between the unfolded and folded states of the pivotable support device, the second rotating plate 320 and the second frame 120 may have an angle greater than zero; for example, the second rotating plate 320 and the second frame 120 may not be parallel to each other.

[0064] In some embodiments, the first sliding plate 210 is slidably attached to the first rotating plate 310. In some embodiments, the first rotating plate 310 includes at least one first insert 450, and the first sliding plate 210 includes at least one first groove 460 configured to receive the first insert 450 to allow the first sliding plate 210 to be slidably moved relative to the first rotating plate 310. Optionally, during the deployment of the pivotable support device, the first sliding plate 210 and the first rotating plate 310 are configured to move toward each other, for example, the first insert 450 is further inserted into the first groove 460. Optionally, during the folding of the pivotable support device, the first sliding plate 210 and the first rotating plate 310 are configured to move away from each other, for example, the first insert 450 is withdrawn from the first groove 460. As used herein, the term "slidably attached" means that two components engage such that the two components are mechanically coupled but can still slide relative to each other. For example, the first rotating plate 310 is attached to the first sliding plate 210 in such a way that the first rotating plate 310 is slidable between at least a first removal position and a second insertion position.

[0065] In some embodiments, the second sliding plate 220 is slidably attached to the second rotating plate 320. In some embodiments, the second rotating plate 320 includes at least one second insert 451, and the second sliding plate 220 includes at least one second groove 461 configured to receive the second insert 451 to allow the second sliding plate 220 to move relative to the second rotating plate 320. Optionally, during the deployment of the pivotable support device, the second sliding plate 220 and the second rotating plate 320 are configured to move toward each other, for example, the second insert 451 is further inserted into the second groove 461. Optionally, during the folding of the pivotable support device, the second sliding plate 220 and the second rotating plate 320 are configured to move away from each other, for example, the second insert 451 is retracted from the second groove 461.

[0066] Because the first axis 480 and the third axis 470 are different from each other, during the transition of the pivotable support device from the unfolded state to the folded state, the first frame 110 moves outward relative to the cover plate 100, and subsequently, the first sliding plate 210 moves away from the first rotating plate 310. During the transition of the pivotable support device from the folded state to the unfolded state, the first frame 110 moves inward relative to the cover plate 100, and subsequently, the first sliding plate 210 moves closer to the first rotating plate 310. Because the second axis 481 and the fourth axis 471 are different from each other, during the transition of the pivotable support device from the unfolded state to the folded state, the second frame 120 moves outward relative to the cover plate 100, and subsequently, the second sliding plate 220 moves away from the second rotating plate 320. During the transition of the pivotable support device from the folded state to the unfolded state, the second frame 120 moves inward relative to the cover plate 100, and subsequently, the second sliding plate 220 moves closer to the second rotating plate 320.

[0067] Figure 13A This is a perspective view of a support plate according to some embodiments of the present disclosure. Figure 13B This is a perspective view of a support plate according to some embodiments of this disclosure. (Refer to...) Figure 3 , Figure 4 and Figures 11 to 13B The pivotable support device also includes a support plate 230 housed by a cladding plate 100. The support plate 230 is movable between a first position and a second position. Figure 11 The pivotable support device is shown in its deployed state, with the support plate 230 in the first position. Figure 12 The pivotable support device is shown in a folded state, with the support plate 230 in the second position.

[0068] In the unfolded state of the pivotable support device, the support plate 230 is in a first position, and the first rotating plate 310, the second rotating plate 320, the first sliding plate 210, the second sliding plate 220, and the support plate 230 constitute part of a substantially flat surface for supporting the foldable display panel 130. In the folded state of the pivotable support device, the support plate 230 is accommodated in a second position between a first side 101 and a second side 102 of the cladding plate 100. As used herein, the term "substantially flat surface" may include minor deviations from the geometry of a flat surface, for example, deviations due to manufacturing processes. The term "substantially flat" includes cases of partial convexity or partial concavity as well as cases of complete flatness.

[0069] In some embodiments, the cladding 100 further includes a connecting portion 103 connecting the first side 101 and the second side 102. The support plate 230 is closer to the connecting portion 103 in the second position compared to the first position. During the transition of the pivotable support device from an unfolded state to a folded state, the support plate 230 moves toward the connecting portion 103. During the transition of the pivotable support device from a folded state to an unfolded state, the support plate 230 moves away from the connecting portion 103.

[0070] See Figure 5 , Figure 6A , Figure 6B , Figure 11 and Figure 12 In some embodiments, the first frame 110 includes a first limiting post 550; the second frame 120 includes a second limiting post 551. See also Figure 13A and 13B The support plate 230 includes a first sliding groove 300 configured to receive a first limiting post 550 and a second sliding groove 301 configured to receive a second limiting post 551. Figure 11 and Figure 12 As shown, in some embodiments, the first limiting post 550 is configured to be slidably attached to the support plate 230. Similarly, the second limiting post 551 is configured to be slidably attached to the support plate 230.

[0071] In some embodiments, from an unfolded state to a folded state, the first limiting post 550 and the second limiting post 551 are configured to drive the support plate 230 from a first position to a second position. Figure 11 The pivotable support device is shown in its deployed state, with the support plate 230 in the first position. Figure 12 The diagram illustrates a folded state of the pivotable support device, with the support plate 230 in a second position. When the support plate 230 changes from a first position to the second position, the first limiting post 550 slides within the space defined by the first sliding groove 300, while the second limiting post 551 slides within the space defined by the second sliding groove 301. Figure 11 and Figure 12 As shown, compared to the first position, the support plate 230 in the second position is further away from the location where the first rotating plate 310 and the second rotating plate 320 are connected to the cover plate 100. By placing the support plate 230 in the second position when the pivotable support device is folded, the foldable display panel is allowed to occupy more space, for example, the space available in the area between the first and second positions by retracting the support plate 230 to the second position.

[0072] Reference Figure 5 , Figure 6A and Figure 6B In some embodiments, the first frame 110 includes a first side post 570, and the second frame 120 includes a second side post 571. (See also...) Figure 10 The cladding 100 includes a first side receiving hole 580 configured to receive a first side post 570, thereby rotatably attaching the first frame 110 to the cladding 100. The cladding 100 also includes a second side receiving hole 590 configured to receive a second side post 571, thereby rotatably attaching the second frame 120 to the cladding 100.

[0073] In some embodiments, such as Figure 6A As shown, the first limiting post 550 and the first side post 570 are respectively connected to the third gear 530 on opposite sides of the third gear 530. Figure 6B As shown, the second limiting post 551 and the second side post 571 are respectively connected to the fourth gear 531 on the opposite side of the fourth gear 531.

[0074] In some embodiments, during the transition between the unfolded and folded states, since the first limiting post 550 and the first side post 570 are connected to the third gear 530 of the first frame 110, and since the second limiting post 551 and the second side post 571 are connected to the fourth gear 531 of the second frame 120, the first limiting post 550, the second limiting post 551, the first side post 570 and the second side post 571 are configured to be simultaneously driven to rotate the first rotating plate 310 (via the first side post 570), rotate the second rotating plate 320 (via the second side post 571), and simultaneously move the support plate 230 within the space defined by the cover plate 100 (via the first limiting post 550 and the second limiting post 551).

[0075] Reference Figure 13A , Figure 13B , Figure 11 and Figure 12In some embodiments, the support plate 230 further includes a plurality of first spacers 600 and a plurality of second spacers 601. The plurality of first spacers 600 and the plurality of second spacers 601 are located on two opposite sides of the support plate 230. In one example, the plurality of first spacers 600 includes first spacers 610 and 620, and the plurality of second spacers 601 includes second spacers 611 and 621. (See also...) Figure 11 and Figure 12 The first spacer 610 contacts the inner surface of the first side 101, and the second spacer 620 contacts the inner surface of the second side 102. The spacers restrict the movement of the support plate 230 within the space defined by the cladding plate 100.

[0076] Reference Figure 12 In the folded state of the rotatable support device, the first included angle α between the first sliding plate 210 and the second sliding plate 220 or between the first rotating plate 310 and the second rotating plate 320 is greater than the second included angle between the first frame 110 and the second frame 120. Figure 12 The second included angle is zero. In some embodiments, the second included angle is in the range of 0 to 10 degrees, for example, 0 to 1 degree, 1 to 2 degrees, 2 to 3 degrees, 3 to 4 degrees, 4 to 5 degrees, 5 to 6 degrees, 6 to 7 degrees, 7 to 8 degrees, 8 to 9 degrees, or 9 to 10 degrees. In some embodiments, the first included angle α is in the range of 10 to 75 degrees, for example, 10 to 15 degrees, 15 to 20 degrees, 20 to 25 degrees, 25 to 30 degrees, 30 to 35 degrees, 35 to 40 degrees, 40 to 45 degrees, 45 to 50 degrees, 50 to 55 degrees, 55 to 60 degrees, 60 to 65 degrees, 65 to 70 degrees, or 70 to 75 degrees.

[0077] Reference Figure 12 In the folded state of the rotatable support device, the first included angle α between the first sliding plate 210 and the second sliding plate 220 or between the first rotating plate 310 and the second rotating plate 320 is greater than the third included angle between the first side portion 101 and the second side portion 102. Figure 12 The third included angle is zero. In some embodiments, the third included angle is in the range of 0 to 10 degrees, for example, 0 to 1 degree, 1 to 2 degrees, 2 to 3 degrees, 3 to 4 degrees, 4 to 5 degrees, 5 to 6 degrees, 6 to 7 degrees, 7 to 8 degrees, 8 to 9 degrees, or 9 to 10 degrees. In some embodiments, the first included angle α is in the range of 10 to 75 degrees, for example, 10 to 15 degrees, 15 to 20 degrees, 20 to 25 degrees, 25 to 30 degrees, 30 to 35 degrees, 35 to 40 degrees, 40 to 45 degrees, 45 to 50 degrees, 50 to 55 degrees, 55 to 60 degrees, 60 to 65 degrees, 65 to 70 degrees, or 70 to 75 degrees.

[0078] In some embodiments, in the folded state of the pivotable support device, the first rotating plate 310 and the second rotating plate 320 are spaced apart by a first distance d1 at their respective connections to the cover plate 100. The first sliding plate 210 and the second sliding plate 220 are spaced apart by a second distance d2 at their respective connections to the first frame 110 and the second frame 120. Optionally, the first distance d1 is greater than the second distance d2. Optionally, the ratio of the first distance to the second distance is in the range of 3 to 100, for example, 3 to 4, 4 to 5, 5 to 6, 6 to 7, 7 to 8, 8 to 9, 9 to 10, 10 to 12, 12 to 14, 14 to 16, 16 to 18, 18 to 20, 20 to 25, 25 to 30, 30 to 40, 40 to 50, 50 to 60, 60 to 70, 70 to 80, 80 to 90, or 90 to 100.

[0079] In some embodiments, the upper surfaces of the first rotating plate 310 and the first sliding plate 210 are substantially coplanar in both the folded and unfolded states of the pivotable support device; and the upper surfaces of the second rotating plate 320 and the second sliding plate 220 are substantially coplanar in both the folded and unfolded states of the pivotable support device.

[0080] In another aspect, this disclosure provides a display device. In some embodiments, the display device includes a foldable display panel and a pivotable support device as described herein. Optionally, the display panel is a liquid crystal display panel. Optionally, the display panel is an organic light-emitting diode display panel. Optionally, the display panel is an electrophoretic display panel. Examples of suitable display devices include, but are not limited to, electronic paper, mobile phones, tablet computers, televisions, monitors, laptop computers, digital photo albums, GPS, etc.

[0081] Figure 14 This is a cross-sectional side view of a display device in an unfolded state according to some embodiments of the present disclosure. Figure 15 This is a cross-sectional side view of a display device in a folded state according to some embodiments of this disclosure. (Refer to...) Figure 14 In the unfolded state of the display device, the first rotating plate 310, the second rotating plate 320, the first sliding plate 210, the second sliding plate 220, and the support plate 230 constitute part of a substantially flat surface for supporting the foldable display panel 130. Since the foldable display panel 130 is fixed to the surfaces of the first rotating plate 310, the second rotating plate 320, the first sliding plate 210, the second sliding plate 220, and the support plate 230, the supporting surface area for the foldable display panel 130 is increased, thereby allowing the foldable display panel 130 to be supported with greater flatness.

[0082] Reference Figure 14In the unfolded state of the display device, the upper surfaces of the first rotating plate 310, the second rotating plate 320, the first sliding plate 210, the second sliding plate 220, and the support plate 230 are substantially coplanar. As used herein, the term "substantially coplanar" means that two or more surfaces of a structure share the same common plane or are offset from the shared common plane by no more than 5 mm (e.g., no more than 4 mm, no more than 3 mm, no more than 2 mm, no more than 1 mm, no more than 0.5 mm, or no more than 0.25 mm).

[0083] Reference Figure 15 In the folded state of the display device, the first rotating plate 310 and the second rotating plate 320 are spaced apart by a first distance d1 at their respective positions connected to the cover plate 100. The first sliding plate 210 and the second sliding plate 220 are spaced apart by a second distance d2 at their respective positions connected to the first frame 110 and the second frame 120. Optionally, the first distance d1 is greater than the second distance d2. Optionally, the ratio of the first distance to the second distance is in the range of 3 to 100, for example, 3 to 4, 4 to 5, 5 to 6, 6 to 7, 7 to 8, 8 to 9, 9 to 10, 10 to 12, 12 to 14, 14 to 16, 16 to 18, 18 to 20, 20 to 25, 25 to 30, 30 to 40, 40 to 50, 50 to 60, 60 to 70, 70 to 80, 80 to 90, or 90 to 100. The portion of the foldable display panel 130 that contacts the first frame 110 ( Figure 15 P1 in the middle) and the portion of the foldable display panel 130 that contacts the second frame 120 ( Figure 15 In the P2), a third distance d3 is separated. Optionally, the first distance d1 is greater than the third distance d3. Optionally, the second distance d2 is greater than the third distance d3. Optionally, the ratio of the first distance d1 to the third distance d3 is in the range of 3 to 100, for example, 3 to 4, 4 to 5, 5 to 6, 6 to 7, 7 to 8, 8 to 9, 9 to 10, 10 to 12, 12 to 14, 14 to 16, 16 to 18, 18 to 20, 20 to 25, 25 to 30, 30 to 40, 40 to 50, 50 to 60, 60 to 70, 70 to 80, 80 to 90, or 90 to 100. Optionally, the ratio of the second distance d2 to the third distance d3 is in the range of 1.1 to 10, for example, 1.1 to 1.2, 1.2 to 1.3, 1.3 to 1.4, 1.4 to 1.5, 1.5 to 1.6, 1.6 to 1.7, 1.7 to 1.8, 1.8 to 1.9, 1.9 to 2.0, 2.0 to 3.0, 3.0 to 4.0, 4.0 to 5.0, 5.0 to 6.0, 6.0 to 7.0, 7.0 to 8.0, 8.0 to 9.0, or 9.0 to 10.0.

[0084] Reference Figure 15In the folded state of the display device, the portion of the foldable display panel 130 that contacts the first sliding plate 210 ( Figure 15 P3 in the middle) and the part of the foldable display panel 130 that contacts the second sliding plate 220 ( Figure 15 The fourth included angle β between P4 and the second frame 110 is greater than the second included angle between the first frame 110 and the second frame 120. Figure 15 The second included angle is zero. In some embodiments, the second included angle is in the range of 0 to 10 degrees, for example, 0 to 1 degree, 1 to 2 degrees, 2 to 3 degrees, 3 to 4 degrees, 4 to 5 degrees, 5 to 6 degrees, 6 to 7 degrees, 7 to 8 degrees, 8 to 9 degrees, or 9 to 10 degrees. In some embodiments, the fourth included angle β is in the range of 10 to 75 degrees, for example, 10 to 15 degrees, 15 to 20 degrees, 20 to 25 degrees, 25 to 30 degrees, 30 to 35 degrees, 35 to 40 degrees, 40 to 45 degrees, 45 to 50 degrees, 50 to 55 degrees, 55 to 60 degrees, 60 to 65 degrees, 65 to 70 degrees, or 70 to 75 degrees.

[0085] Reference Figure 15 In the folded state of the display device, the portion of the foldable display panel 130 that contacts the first sliding plate 210 ( Figure 15 P3 in the middle) and the part of the foldable display panel 130 that contacts the second sliding plate 220 ( Figure 15 The fourth included angle β between P4 and the foldable display panel 130 is greater than the portion of the foldable display panel 130 that contacts the first frame 110. Figure 15 P1) and the portion of the foldable display panel 130 that contacts the second frame 120 (in the middle) Figure 15 The fifth included angle between P2 and P2 (in the middle) Figure 15 The fifth included angle is zero. In some embodiments, the fifth included angle is in the range of 0 to 10 degrees, for example, 0 to 1 degree, 1 to 2 degrees, 2 to 3 degrees, 3 to 4 degrees, 4 to 5 degrees, 5 to 6 degrees, 6 to 7 degrees, 7 to 8 degrees, 8 to 9 degrees, or 9 to 10 degrees. In some embodiments, the fourth included angle β is in the range of 10 to 75 degrees, for example, 10 to 15 degrees, 15 to 20 degrees, 20 to 25 degrees, 25 to 30 degrees, 30 to 35 degrees, 35 to 40 degrees, 40 to 45 degrees, 45 to 50 degrees, 50 to 55 degrees, 55 to 60 degrees, 60 to 65 degrees, 65 to 70 degrees, or 70 to 75 degrees.

[0086] In its folded state, the foldable display panel 130 has a teardrop-shaped cross-section. The pivotable support device has a pseudo-teardrop-shaped cross-section. A "teardrop shape" generally refers to a shape with two straight sides and an arched upper portion, the two straight sides radiating at an acute angle from a lower point, and the arched upper portion extending between the upper ends of the sides. In one example, the "teardrop shape" is formed as a droplet with a spherical form at one end and gradually tapering towards the other, or as a gem-like falling teardrop on an earring, necklace, or ring. By having this unique structure, the thickness of the display device can be significantly reduced, and the localized stress of the foldable display panel 130 can also be significantly reduced, especially when the display device is in its folded state.

[0087] In some embodiments, the upper surfaces of the first rotating plate 310 and the first sliding plate 210 are substantially coplanar in both the folded and unfolded states of the display device; and the upper surfaces of the second rotating plate 320 and the second sliding plate 220 are substantially coplanar in both the folded and unfolded states of the display device.

[0088] In another aspect, the present invention provides a method for manufacturing a pivotable support device for supporting a foldable display panel. In some embodiments, the method includes forming a cover plate having a first side and a second side; forming a first rotating plate rotatably attached to the first side; forming a second rotating plate rotatably attached to the second side; forming a first sliding plate slidably attached to the first rotating plate; forming a second sliding plate slidably attached to the second rotating plate; forming a first frame rotatably attached to the first sliding plate; and forming a second frame rotatably attached to the second sliding plate.

[0089] For illustrative and descriptive purposes, the foregoing description of embodiments of the invention has been provided. It is not exhaustive, nor is it intended to limit the invention to the precise forms or exemplary embodiments disclosed. Therefore, the foregoing description should be considered illustrative rather than restrictive. Clearly, many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to explain the principles of the invention and its best mode of practical application, thereby enabling those skilled in the art to understand the various embodiments of the invention and the various modifications suitable for the particular use or implementation contemplated. The scope of the invention is intended to be defined by the appended claims and their equivalents, wherein, unless otherwise stated, all terms are to be interpreted in their broadest reasonable sense. Therefore, the terms “the invention,” “the present invention,” etc., do not necessarily limit the scope of the claims to the specific embodiments, and references to exemplary embodiments of the invention do not imply limitation of the invention, nor should such limitation be inferred. The invention is defined only by the spirit and scope of the appended claims. Furthermore, these claims may involve the use of “first,” “second,” etc., followed by nouns or elements. These terms should be understood as nomenclature and should not be construed as limiting the number of elements modified by these nomenclatures unless a specific number has been given. Any advantages and benefits described may not apply to all embodiments of the invention. It should be understood that changes to the described embodiments can be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims. Furthermore, the elements and components in this disclosure are not intended for public distribution, whether or not they are expressly recited in the appended claims.

Claims

1. A pivotable support device for supporting a foldable display panel, comprising: A cladding plate having a first side and a second side; A first rotating plate is rotatably attached to the first side portion; A second rotating plate is rotatably attached to the second side portion; A first sliding plate is slidably attached to the first rotating plate; A second sliding plate is slidably attached to the second rotating plate; A first frame, which is rotatably attached to the first sliding plate; as well as The second frame is rotatably attached to the second sliding plate; It also includes a support plate housed by the cladding plate, the support plate being movable between a first position and a second position; In the unfolded state of the pivotable support device, the support plate is in the first position, and the first rotating plate, the second rotating plate, the first sliding plate, the second sliding plate and the support plate constitute a portion of a substantially flat surface for supporting the foldable display panel. as well as In the folded state of the pivotable support device, the support plate is accommodated between the first side and the second side of the cladding plate at the second position.

2. The pivotable support device according to claim 1, wherein, In the folded state of the pivotable support device, the first included angle between the first sliding plate and the second sliding plate or between the first rotating plate and the second rotating plate is greater than the second included angle between the first frame and the second frame.

3. The pivotable support device according to claim 1, wherein, In the folded state of the pivotable support device, the first rotating plate and the second rotating plate are spaced apart by a first distance at the locations where they are respectively connected to the cladding plate; The first sliding plate and the second sliding plate are spaced apart by a second distance at the locations where they are respectively connected to the first frame and the second frame; as well as The first distance is greater than the second distance.

4. The pivotable support device according to claim 1, wherein, In the unfolded state of the pivotable support device, the first rotating plate, the second rotating plate, the first sliding plate, and the second sliding plate constitute a portion of a substantially flat surface for supporting the foldable display panel.

5. The pivotable support device according to any one of claims 1 to 4, wherein, The first rotating plate includes at least one first insert, and the first sliding plate includes at least one first groove configured to receive the first insert to allow the first sliding plate to be slidably moved relative to the first rotating plate. During the deployment of the pivotable support device, the first sliding plate and the first rotating plate are configured to move toward each other; as well as During the folding of the pivotable support device, the first sliding plate and the first rotating plate are configured to move away from each other.

6. The pivotable support device according to any one of claims 1 to 4, wherein, The second rotating plate includes at least one second insert, and the second sliding plate includes at least one second groove configured to receive the second insert to allow the second sliding plate to move relative to the second rotating plate. During the deployment of the pivotable support device, the second sliding plate and the second rotating plate are configured to move toward each other; as well as During the folding of the pivotable support device, the second sliding plate and the second rotating plate are configured to move away from each other.

7. The pivotable support device according to any one of claims 1 to 4, wherein, The first rotating plate includes at least one first shaft, and the first side includes at least one first receiving hole configured to receive the first shaft; The first sliding plate includes at least one third shaft, and the first frame includes at least one third receiving hole configured to receive the third shaft; The first rotating plate and the first side are configured to rotate relative to each other about the first axis; as well as The first sliding plate and the first frame are configured to rotate relative to each other about the third axis.

8. The pivotable support device according to any one of claims 1 to 4, wherein, The second rotating plate includes at least one second shaft, and the second side includes at least one second receiving hole configured to receive the second shaft; The second sliding plate includes at least one fourth shaft, and the second frame includes at least one fourth receiving hole configured to receive the fourth shaft; The second rotating plate and the second side are configured to rotate relative to each other about the second axis; as well as The second sliding plate and the second frame are configured to rotate relative to each other about the fourth axis.

9. The pivotable support device according to any one of claims 1 to 4, wherein, The first frame includes a first limiting post; The second frame includes a second limiting post; The support plate includes a first sliding groove configured to receive the first limiting post and a second sliding groove configured to receive the second limiting post; The first limiting post is configured to be slidably attached to the support plate; as well as The second limiting post is configured to be slidably attached to the support plate.

10. The pivotable support device according to claim 9, wherein, From the unfolded state to the folded state, the first limiting post and the second limiting post are configured to drive the support plate from the first position to the second position; as well as Compared to the support plate at the first position, the support plate at the second position is further away from the location where the first rotating plate and the second rotating plate are connected to the cladding plate.

11. The pivotable support device according to any one of claims 1 to 4, wherein, The first frame includes a first side post, and the cladding includes a first side receiving hole configured to receive the first side post, thereby rotatably attaching the first frame to the cladding. as well as The second frame includes a second side post, and the cladding includes a second side receiving hole configured to receive the second side post, thereby rotatably attaching the second frame to the cladding.

12. The pivotable support device according to any one of claims 1 to 4, further comprising a hinge structure, said hinge structure including a first spindle and a second spindle; and A synchronizing gear, which is configured to synchronize the rotation of the first spindle and the second spindle.

13. The pivotable support device according to claim 12, wherein, The synchronizing gear includes a first gear and a second gear, the first gear and the second gear being configured to rotate about the first main shaft and the second main shaft, respectively. The first gear and the second gear are configured to engage with each other; The first frame includes a third gear configured to engage with the first gear; as well as The second frame includes a fourth gear configured to engage with the second gear.

14. The pivotable support device according to claim 13, wherein, The first frame includes a first limiting post and a first side post; The first limiting post and the first side post are respectively connected to the third gear on opposite sides of the third gear; The second frame includes a second limiting post and a second side post; The second limiting post and the second side post are respectively connected to the fourth gear on opposite sides of the fourth gear.

15. The pivotable support device according to claim 2, wherein, The second included angle is in the range of 0 degrees to 5 degrees; and The first included angle is in the range of 10 degrees to 50 degrees.

16. The pivotable support device according to claim 3, wherein, The ratio of the first distance to the second distance is in the range of 3 to 100.

17. A display device comprising a foldable display panel and a pivotable support device according to any one of claims 1 to 16.

18. The display device according to claim 17, wherein, In the folded state of the display device, the first rotating plate and the second rotating plate are spaced apart by a first distance at the positions where they are respectively connected to the cover plate; The first sliding plate and the second sliding plate are spaced apart by a second distance at the locations where they are respectively connected to the first frame and the second frame; The first distance is greater than the second distance; The portion of the foldable display panel that contacts the first frame and the portion of the foldable display panel that contacts the second frame are spaced apart by a third distance. as well as The first distance is greater than the third distance.

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