Patent ID: 12222764

The above drawings have the following reference numerals:

1: first support member,2: primary display screen,3: second support member,4: secondary display screen,5: rotating device,6: sliding device,7: stylus,11: first flat surface,12: second flat surface,13: first arc surface,14: second arc surface,15: first through hole,21: first primary display screen,22: second primary display screen,23: The third primary display screen,51: rotating shaft,52: connection base,53: first gear,54: second gear,55: third gear,56: rotating disk,511: second through hole,521, first connection base,522, second connection base,61: sliding block,62: lifting disk, and63: knob.

DETAILED DESCRIPTION

Preferred embodiments of the present disclosure are described in detail below with reference to accompanying drawings to fully introduce technical solutions of the present disclosure to those skilled in the art and to prove that the present invention can be implemented. This makes the technical solutions of the present disclosure clearer and those skilled in the art will more readily understand how to implement the present invention. However, the present invention may be implemented in many different forms of embodiments, so the claimed scope of the present invention is not limited to the embodiments mentioned herein, and the description of the embodiments below is not intended to limit the claimed scope of the present invention.

Directional terms mentioned in the present disclosure, such as “above”, “below”, “front”, “back”, “left”, “right”, “inside”, “outside”, “side”, are merely used to indicate directions of the accompanying drawings. The directional terms used herein are used for explaining and illustrating the present invention rather than limiting the claimed scope of the present invention.

In the accompanying drawings, components having a same structure are indicated by a same reference numeral, and components having similar structures or functions are indicated by similar reference numerals. Furthermore, for ease of understanding and description, dimensions and thickness of each component shown in the accompanying drawings are arbitrarily shown, and the dimensions and thickness of each component are not limited in the present disclosure.

Embodiment 1

Please refer toFIG.3,FIG.5, andFIG.9, this embodiment provides a foldable display device100. The foldable display device100includes a first support member1, a primary display screen2, a second support member3, a secondary display screen4, a rotating device5, and a sliding device6.

Please refer toFIG.8, the first support member1comprises a first flat surface11, a second flat surface12, a first arc surface13, and a second arc surface14. The second flat surface12is parallel to the first flat surface11. The first arc surface13and the second arc surface14connect the first flat surface11and the second flat surface12.

Please refer toFIG.3andFIG.8. The first flat surface11includes two first sides and two second sides, and the two first sides are perpendicular to the two second sides. The first arc surface13and the second arc surface14extend from the two first sides respectively. The two first sides are parallel to a first axis, and the two second sides are parallel to a second axis. The first axis is perpendicular to the second axis. That is, the first arc surface13and the second arc surface14extend along the first axis. In this embodiment, the first axis is a Y axis, and the second axis is an X axis. That is, the first arc surface13and the second arc surface14extend along the Y axis. A third axis perpendicular to the first flat surface11is a Z axis.

As shown inFIG.3andFIG.8, in any cross section formed by the X axis and Z axis, an arc radius of the first arc surface13is equal to an arc radius of the second arc surface14, and a line connecting an arc center of the first arc surface13and an arc center of the second arc surface14is parallel to the first flat surface11.

As shown inFIG.3andFIG.8, the first support member1is provided with a first through hole15extending along the Y axis. An axis of the first through hole15coincides with an axis of the first arc surface13. The axis of the first through hole15refers to a line connecting two circle centers of the first through hole15in any two cross section formed by the X axis and Z axis. The axis of the first arc surface13refers to a line connecting two arc centers of the first arc surface13in any two cross section formed by the X axis and Z axis.

As shown inFIG.3andFIG.8, the primary display screen2is fixed on the first support member1. The primary display screen2is a flexible display screen. The primary display screen2includes a first primary display screen21, a second primary display screen22, and a third primary display screen23. The second primary display screen22and the third primary display screen23are respectively connected to opposite sides of the first primary display screen21. The first primary display screen21, the second primary display screen22, and the third primary display screen23are an integrated structure.

As shown inFIG.3andFIG.8, the first primary display screen21covers the first flat surface11. The first primary display screen21is a flat display screen.

As shown inFIG.3andFIG.8, the second primary display screen22covers the first arc surface13, and the second primary display screen22is an arc-shaped body. In any cross section formed by the X axis and Z axis, an arc center of the second primary display screen22coincides with the arc center of the first arc surface13.

As shown inFIG.3andFIG.8, the third primary display screen23covers the second arc surface14, and the third primary display screen23is an arc-shaped body. In any cross section formed by the X axis and Z axis, an arc center of the third primary display screen23coincides with the arc center of the second arc surface14.

As shown inFIG.5,FIG.6, andFIG.7, the second support member3is rotatably connected to the first support member1. The secondary display screen4is fixed on the second support member3. The second support member3is rotatably connected to the first support member1, so that the secondary display screen4can be spread or stored. When the secondary display screen4is spread or stored, the first primary display screen21, the second primary display screen22, the third primary display screen23, and the secondary display screen4are not folded, which can avoid a phenomenon that a flexible display screen in the prior art forms obvious creases and imprints after being bent many times, thereby improving service lifes of the first primary display screen21, the second primary display screen22, the third primary display screen23, and the secondary display screen4. Ultimately, a service life of the foldable display device100is improved.

As shown inFIG.5,FIG.6, andFIG.7, a surface of the secondary display screen4away from the second support member3is tangent to a surface of the second primary display screen22away from the first support member1. Because the secondary display screen4of the present disclosure does not need to be folded, the secondary display screen4may be a flexible display screen or a non-flexible display screen.

As shown inFIG.5, when the secondary display screen4is in the storage state, the first primary display screen21, the second primary display screen22, the third primary display screen23, and the secondary display screen4form a 360° surround screen, which can meet user's demand for 360° surround screen display and improve user experience.

As shown inFIG.5andFIG.10, when the secondary display screen4is in the storage state, the secondary display screen4is parallel to the first primary display screen21, and the surface of the secondary display screen4away from the second support member3is tangent to the surface of the second primary display screen22away from the first support member1and a surface of the third primary display screen23away from the first support member1. This can prevent the secondary display screen4from being convex or concave, resulting in poor user experience.

As shown inFIG.7, when the secondary display screen4is spread to a same plane as the first primary display screen21, the first primary display screen21and the secondary display screen4form a spliced display screen. This can meet the demand for large-size flat display and improve the user experience.

As shown inFIG.7andFIG.12, when the secondary display screen4is spread to the same plane as the first primary display screen21, the surface of the secondary display screen4away from the second support member3is flush with a surface of the first primary display screen21away from the first support member1. This can avoid that the secondary display screen4and the first primary display screen21are not on a same plane, resulting in poor user experience.

As shown inFIG.6andFIG.11, when the secondary display screen4is spread but not spread to the same plane as the first primary display screen21, the secondary display screen4covers a part of the second primary display screen22below. As shown inFIG.7andFIG.12, when the secondary display screen4is spread to the same plane as the first primary display screen21, the secondary display screen4covers an entire of the second main display screen22below. At this time, when a user views the first primary display screen21and the secondary display screen4from above, there is only one seam between the first primary display screen21and the secondary display screen4, which can improve the user experience.

As shown inFIG.8,FIG.9, andFIG.10, the rotating device10is configured to rotatably connect the second support member3to the first support member1. The rotating device5comprises a rotating shaft51, a connection base52, a first gear53, a second gear54, one or more third gears55, and a rotating disk56.

The rotating shaft51is disposed in the first through hole15, is rotatably connected to the first support member1, and extends along the Y axis. An axis of the rotating shaft51coincides with the axis of the first through hole15.

As shown inFIG.4andFIG.9, the connection base52is configured to fixedly connect the rotating shaft51to the second support member3. The connection base52comprises a first connection base521and a second connection base522respectively fixed on a first end and a second end of the rotating shaft51.

As shown inFIG.9,FIG.10,FIG.11, andFIG.12, the first gear53is fixed on an outer wall of the first end of the rotating shaft53.

As shown inFIG.8,FIG.10,FIG.11, andFIG.12, the second gear54is fixed on an inner wall of the first through hole15and surrounds the first gear53.

As shown inFIG.9,FIG.10,FIG.11, andFIG.12, in this embodiment, the rotating device5includes four third gears55. The third gears55mesh with the first gear53and the second gear54. In this embodiment, the third gears55are rotatably connected to a side of the rotating disk56away from the first connection base521. In other embodiments, the third gears55may be fixed to the side of the rotating disk56away from the first connection base521.

As shown inFIG.9, the rotating disk56is rotatably sleeved on the rotating shaft51and is disposed between the first gear53and the first connection base521.

Please refer toFIG.5toFIG.12, when the secondary display screen4is spread, the rotating shaft51rotates in a first direction, the first gear53on the rotating shaft51rotates in the first direction, the third gears55rotate in a second direction relative to the rotating disk56, and the rotating disk56rotates in the first direction. When the secondary display screen4is stored, the rotating shaft51rotates in the second direction, the first gear53on the rotating shaft51rotates in the second direction, the third gears55rotate in the first direction relative to the rotating disk56, and the rotating disk56rotates in the second direction. The first direction is one of a clockwise direction and a counterclockwise direction, and the second direction is other one of the clockwise direction and the counterclockwise direction. In this embodiment, the first direction is the counterclockwise direction, and the second direction is the clockwise direction.

As shown inFIG.9andFIG.13, the third gears55extend along the Y axis, and each of the third gears55is gradually thicker from an end of each of the third gears55away from the first connection base521to an end of each of the third gears55close to the first connection base521. Therefore, when the third gears55move away from the first connection base521, a meshing between the third gears55and the first gear53is tighter, and a meshing between the third gears55and the second gear54is tighter, so that resistance of spreading or storing the secondary display screen4is greater, which is beneficial to keep the secondary display screen4at any rotation angle.

As shown inFIG.9,FIG.14, andFIG.15, the sliding device6is configured to drive the third gears55to move along the Y axis. The sliding device6comprises one or more sliding blocks61, a lifting disk62, and a knob53.

The sliding blocks61slidably penetrate the first connection base521. The sliding blocks61are rotatably connected to the lifting disk62. The sliding blocks61are rotatably connected to the knob63.

The lifting disk62is slidably sleeved on the rotating shaft51.

The rotating disk56is slidably sleeved on the rotating shaft51and is rotatably connected to the lifting disk62. Therefore, the rotating disk56can be driven by the lifting disk62to move along the Y axis, and can rotate relative to the lifting disk62around the rotating shaft51.

The knob63is rotatably connected to the first connection base521. The knob63is mainly configured to drive the sliding blocks61to move along the Y axis.

Please refer toFIG.9andFIG.15, when the knob63is rotated in the first direction, the knob63drives the sliding blocks61to move away from the first connection base521. Specifically, the knob63drives the sliding blocks61to rotate, and the sliding blocks61moves away from the first connection base521while rotating. The sliding blocks61drive the lifting disk62, the rotating disk56, and the third gears55to move away from the first connection base521, which increases a meshing degree between the third gears55and the first gear53and a meshing degree between the third gears55and the second gear54, thereby increasing the resistance of spreading or storing the secondary display screen4, so that the secondary display screen4can be maintained at any rotation angle.

Please refer toFIG.9andFIG.14, when the knob63is rotated in the second direction, the knob63drives the sliding blocks61to move toward the first connection base521. Specifically, the knob63drives the sliding blocks61to rotate, and the sliding blocks61moves toward the first connection base521while rotating. The sliding blocks61drive the lifting disk62, the rotating disk56, and the third gears55to move toward the first connection base521, which decreases a meshing degree between the third gears55and the first gear53and a meshing degree between the third gears55and the second gear54, thereby decreasing the resistance of spreading or storing the secondary display screen4. This is beneficial to adjust a rotation angle of the secondary display screen4.

As shown inFIG.10toFIG.12, the rotating shaft51is provided with a second through hole511extending along the Y axis, so as to reduce a weight of the foldable display device100. In this embodiment, an axis of the second through hole511coincides with the axis of the first through hole15. The axis of the second through hole511refers to a line connecting two circle centers of the second through hole511in any two cross section formed by the X axis and Z axis. Please refer toFIG.9toFIG.12, in this embodiment, the second through hole511is configured for placing a stylus pen7, which improves space utilization of the second through hole511. In other embodiments, the second through hole511may also be configured for placing components such as wires.

The foldable display device provided by the embodiments of the present disclosure is described in detail above. The present disclosure uses specific examples to describe principles and embodiments of the present invention. The above description of the embodiments is only for helping to understand solutions of the present invention and its core ideas. Furthermore, those skilled in the art may make modifications to the specific embodiments and applications according to ideas of the present invention. In conclusion, the present specification should not be construed as a limitation to the present invention.