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EP-4488985-B1 - DISPLAY APPARATUS

EP4488985B1EP 4488985 B1EP4488985 B1EP 4488985B1EP-4488985-B1

Inventors

  • WEI, Yuehan

Dates

Publication Date
20260506
Application Date
20221031

Claims (11)

  1. A display device, comprising: a first housing (100) and at least one second housing (200), wherein the at least one second housing (200) is slidably connected to the first housing (100); a flexible display panel (300) comprising a planar display portion (301) and a rollable display portion (302), wherein the planar display portion (301) is secured on the first housing (100); a reel (400) disposed in the at least one second housing (200) and connected to the at least one second housing (200), wherein the rollable display portion (302) comprises a first portion wound over the reel (400) and a second portion parallel to the planar display portion (301); and a plurality of support columns (500) arranged in an array, wherein two ends of each of the plurality of support columns (500) are slidably connected to the at least one second housing (200), the plurality of support columns (500) are fixedly connected to a rear face of the rollable display portion (302), and at least some of the plurality of support columns (500) are in contact with a side, facing away from the first housing (100), of the reel (400) in a slide direction of the at least one second housing (200) relative to the first housing (100); wherein the two ends of the each of the plurality of support columns (500) are provided with first slide protrusions (501), and the at least one second housing (200) comprises a support housing (201) and two limit members (202) respectively and fixedly connected to two ends of the support housing (201), wherein the plurality of support columns (500) are disposed between the two limit members (202), a slideway (2021) is defined in sides, facing towards the plurality of support columns (500), of the two limit members (202), and at least part of the first slide protrusions (501) are disposed in the slideway (2021); the two ends of the each of the plurality of support columns (500) are further provided with first limit protrusions (502) adjacent to the first slide protrusions (501), wherein the first limit protrusions (502) are outside the slideway (2021), and a portion, connected to the support column (500), of the rollable display portion (302) is disposed between two of the first limit protrusions (502) in the each of the plurality of support columns (500); and the flexible display panel (300) further comprises a non-display portion (303) on a side, facing away from the planar display portion (301), of the rollable display portion (302); wherein the display device further comprises a support plate (600), characterized in that : the support plate (600) is fixedly connected to a rear face of the non-display portion (303), and two ends of the support plate (600) are slidably connected to the slideway (2021), the two ends of the support plate (600) are both provided with second slide protrusions (601), second limit protrusions (602) and auxiliary slide protrusions (603) opposite to the second slide protrusions (601), wherein at least part of the second slide protrusions (601) are in the slideway (2021), the second limit protrusions (602) are outside the slideway (2021), and a portion, connected to the support plate (600), of the non-display portion (303) is disposed between two of the second limit protrusions (602) in the support plate (600); faces, facing away from the plurality of support columns (500), of the first limit protrusions (502) are flush with faces, facing away from the support plate (600), of the second limit protrusions (602); and the support housing (201) is further provided with a strip-shaped auxiliary slideway (2011) opposite to the slideway (2021) of the limit member (202), and at least part of the auxiliary slide protrusions (603) are disposed in the auxiliary slideway (2011).
  2. The display device according to claim 1, wherein in sliding of the at least one second housing (200) relative to the first housing (100), at least one of the plurality of support columns (500) is in contact with the side, facing away from the first housing (100), of the reel (400) in the slide direction of the at least one second housing (200) relative to the first housing (100).
  3. The display device according to claim 1, wherein the plurality of support columns (500) are equally spaced apart on the rear face of the rollable display portion (302).
  4. The display device according to claim 1, wherein the slideway (2021) comprises a first planar slideway (A1) and a second planar slideway (A2) that are opposite, and a curved slideway (A3) in communication with both the first planar slideway (A1) and the second planar slideway (A2), wherein the curved slideway (A3) is disposed in the side, facing away from the first housing (100), of the reel (400).
  5. The display device according to claim 1, wherein the first limit protrusions (502) are provided with protrusion portions (5021) and recess portions (5022) that are opposite, wherein in two adjacent first limit protrusions (502), at least part of the protrusion portion (5021) of one of the two adjacent first limit protrusions (502) is in the recess portion (5022) of the other of the two adjacent first limit protrusions (502).
  6. The display device according to any one of claims 1 to 5, further comprising: a drive assembly (700) connected to the first housing (100) and the at least one second housing (200), wherein the drive assembly (700) is configured to drive the at least one second housing (200) to slide relative to the first housing (100).
  7. The display device according to claim 6, wherein the drive assembly (700) comprises a drive motor (701), a screw (702), and a first slide block (703), wherein the drive motor (701) is secured on the first housing (100) and connected to an end of the screw (702), and the first slide block (703) is sleeved on the screw (702), connected to the at least one second housing (200) and configured to move in a lengthwise direction of the screw (702) in rotation of the screw (702) driven by the drive motor (701) to drive the at least one second housing (200) to slide relative to the first housing (100).
  8. The display device according to claim 7, wherein in the case that the display device comprises a support plate (600), the at least one second housing (200) comprises a strip-shaped first drive slideway (203), and a second drive slideway (604) is defined in a side, proximal to the at least one second housing (200), of the support plate (600), wherein a lengthwise direction of the first drive slideway (203) and a lengthwise direction of the second drive slideway (604) are both perpendicular to an axial direction of reel (400), an end, proximal to the reel (400), of the first drive slideway (203) is a first baffle end (203a), and an end, facing away from the reel (400), of the second drive slideway (604) is a second baffle end (604a); and the first slide block (703) is provided with a rod (703a) extending in the first drive slideway (203) and the second drive slideway (604), wherein the rod (703a) is configured to drive the at least one second housing (200) to slide in a direction facing away from the first housing (100) upon contact with the first baffle end (203a), and drive the at least one second housing (200) to slide in a direction approaching the first housing (100) through the support plate (600) upon contact with the second baffle end (604a), optionally, a first opening (203b) is defined in an end, facing away from the reel (400), of the first drive slideway (203), and a second opening (604b) is defined in an end, close to the reel (400), of the second drive slideway (604).
  9. The display device according to claim 7 or 8, further comprising: a fixed guide rail (800) and a second slide block (900), wherein the fixed guide rail (800) is secured on the first housing (100), a lengthwise direction of the guide rail (800) is parallel to the slide direction of the at least one second housing (200) relative to the first housing (100), and the second slide block (900) is secured on the at least one second housing (200), sleeved on the fixed guide rail (800) and slidably connected to the fixed guide rail (800).
  10. The display device according to any one of claims 1 to 5 and 7 to 9, wherein the at least one second housing (200) is provided with a plurality of guide bars (204) arranged in parallel, wherein a lengthwise direction of the plurality of guide bars (204) is perpendicular to an axial direction of the reel (400); and the first housing (100) is provided with a plurality of guide slideways (101) in one-to-one correspondence to the plurality of guide bars (204), wherein at least part of the plurality of guide bars (204) are in the corresponding guide slideway (101) and slidably connected to the corresponding guide slideway (101).
  11. The display device according to claim 10, wherein the plurality of guide slideways (101) are dovetail slots, and the plurality of guide bars (204) comprise guide bar bodies (2041) and guide slide blocks (2042) fixedly connected to end portions of the guide bar bodies (2041), wherein shapes of the guide slide blocks (2042) are matched with shapes of the dovetail slots, and at least part of the guide slide blocks (2042) are in the dovetail slots; optionally, the first housing (100) is further provided with a plurality of guide protrusions (102), wherein an arrangement direction of the plurality of guide protrusions (102) is parallel to an arrangement direction of the plurality of guide bars (204), any two adjacent guide protrusions (102) are configured to define one guide slideway (101), any of the guide bar bodies (2041) is disposed between two adjacent guide protrusions (102), and a face, proximal to the planar display portion (301), of the any of the guide bar bodies (2041) is flush with faces, proximal to the planar display portion (301), of the two adjacent guide protrusions (102).

Description

TECHNICAL FIELD The present disclosure relates to the field of display technologies, and in particular, relates to a display device. BACKGROUND At present, a display device generally employs a flexible display panel as a display screen thereof. The flexible display panel has advantages of deformability, bendability, and great flexibility over the traditional display panel. EP3893472A1 discloses a mobile terminal. SUMMARY Embodiments of the present disclosure provide a display device. The invention is set out in the appended set of claims. BRIEF DESCRIPTION OF DRAWINGS For clearer description of the technical solutions in the embodiments of the present disclosure, the following briefly describes the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and those of ordinary skill in the art may still derive other drawings from these accompanying drawings without any creative efforts. FIG. 1 is a schematic view of an effect of unrolling and rolling a flexible display panel in a display device according to some embodiments of the present disclosure;FIG. 2 is an exploded view of a partial structure of the display device shown in FIG. 1;FIG. 3 is a schematic view of connection of a plurality of support columns and a flexible display panel according to some embodiments of the present disclosure;FIG. 4 is a schematic view of another effect of unrolling and rolling a flexible display panel in a display device according to some embodiments of the present disclosure;FIG. 5 is a schematic view of distribution of a plurality of support columns according to some embodiments of the present disclosure;FIG. 6 is an exploded view of a partial structure of another display device according to some embodiments of the present disclosure;FIG. 7 is a partially enlarged view taken at an A position shown in FIG. 6;FIG. 8 is a schematic view of assembly of the display device shown in FIG. 6;FIG. 9 is a schematic planar view of connection of a slideway and a first limit protrusion according to some embodiments of the present disclosure;FIG. 10 is a schematic view of a position relationship of a flexible display panel and a first limit protrusion according to some embodiments of the present disclosure;FIG. 11 is an exploded view of a partial structure of another display device according to some embodiments of the present disclosure;FIG. 12 is a schematic view of assembly of the display device shown in FIG. 11;FIG. 13 is an exploded view of a partial structure of another display device according to some embodiments of the present disclosure;FIG. 14 is an exploded view of a partial structure of another display device according to some embodiments of the present disclosure;FIG. 15 is a schematic view of assembly of the display device shown in FIG. 14;FIG. 16 is an exploded view of a partial structure of another display device according to some embodiments of the present disclosure;FIG. 17 is a schematic structural view of a support plate according to some embodiments of the present disclosure;FIG. 18 is a schematic view of forces on a flexible display panel in an unrolling process according to some embodiments of the present disclosure;FIG. 19 is a schematic view of forces on a flexible display panel in a rolling process according to some embodiments of the present disclosure;FIG. 20 is an exploded view of a first housing and a second housing according to some embodiments of the present disclosure;FIG. 21 is a schematic view of connection of the first housing and the second housing shown in FIG. 20;FIG. 22 is a schematic structural view of a dovetail slot according to some embodiments of the present disclosure; andFIG. 23 is a schematic view of an outside structure of a display device according to some embodiments of the present disclosure. Clear embodiments of the present disclosure are shown by the above accompanying drawings, and more detailed descriptions are shown hereinafter. The accompanying drawings and texts are not intended to limit the scope of the scope of the concept of the present disclosure in any way, but to describe the concept of the present disclosure for those skilled in the art with reference to specific embodiments. DETAILED DESCRIPTION To make the objectives, technical solutions, and advantages of the present disclosure clearer, the embodiments of the present disclosure are further described in detail hereinafter with reference to the accompanying drawings. The display device generally includes a reel and a flexible display panel. The reel itself can rotate, and the flexible display panel can be unrolled and rolled with the reel, such that the display device has an unrolling state and a rolling state. Thus, dimensions of a display face of the display device can be adjusted. However, upon unrolling of the flexible display panel in the above display device, partial regions of the display