Display module and display device
A display module includes: a display panel including a display surface and a non-display surface arranged opposite to each other; a support layer arranged on the non-display surface of the display panel, the support layer having a first surface away from the display panel, and at least part of the first surface is provided with a first shape portion arranged in a predetermined direction; and a rotating shaft having a second shape portion in a circumferential direction, the support layer and the display panel arranged around an outer circumference of the rotating shaft, the first shape portion of the first surface engaged with the second shape portion of the rotating shaft.
1 . A display module, comprising:
a display panel, comprising a display surface and a non-display surface arranged opposite to each other and a part in a first state and a part in a second state;
a support layer, arranged on the non-display surface of the display panel, the support layer having a first surface away from the display panel, and at least part of the first surface provided with at least one first shape portion arranged in a predetermined direction;
a first frame;
a second frame, arranged opposite to the first frame;
a distance-detecting device comprising both a first detecting portion arranged at the first frame and a second detecting portion arranged at the second frame, wherein the distance-detecting device is configured to obtain a distance information between the first frame and the second frame;
a rotating shaft, an outer circumference of the rotating shaft provided with at least one second shape portion, the support layer and the display panel arranged around the outer circumference of the rotating shaft, the first shape portion of the first surface engaged with the second shape portion of the rotating shaft, wherein the rotating shaft is rotatable to drive the first shape portion and the second shape portion engaged with each other to move relative to each other to drive the support layer to rotate to switch a part of the display panel between the first state and the second state
a driving device, connected to the rotating shaft and configured to drive the rotating shaft to rotate; and
a controller, electrically connected with the distance-detecting device and the driving device, and configured to control the driving device to rotate according to the distance information;
wherein when there is an external force that causes the second frame to move away from the first frame in the first direction, a distance between the first frame and the second frame detected by the distance-detecting device increases and forms a first detecting signal; the first detecting signal is fed back to the controller; after the controller receives the first detecting signal, the driving device is controlled to start to drive the rotating shaft to rotate;
when a distance between the second frame and the first frame stops changing, and both of the second frame and the first frame are in a suspending state; the distance-detecting device detects that the distance between the first frame and the second frame stops changing and forms a second detecting signal; the second detecting signal is fed back to the controller; after receiving the second detecting signal, the controller is configured to control the display module in a tension state, the rotating shaft drives the support layer to rotate at the predetermined angle, and the display module enters and remains in the suspending state.
2 . The display module according to claim 1 , wherein the first surface of the support layer comprises an engaging region and an attaching region, the attaching region is located at at least one side of the engaging region in a direction perpendicular to an axial direction of the rotating shaft, and the first shape portion is arranged in the engaging region, and a surface of the attaching region is flat.
3 . The display module according to claim 2 , wherein the support layer is provided with a plurality of first through holes distributed uniformly.
4 . The display module according to claim 3 , wherein the engaging region is provided with the first through holes distributed uniformly, and an orthographic projection of the first shape portion on the engaging region is at least partially located within the first through holes.
5 . The display module according to claim 3 , wherein the engaging region is provided with the first through holes distributed uniformly, the first shape portion is integrally formed with the support layer, and the first through holes penetrate through a part of the first shape portion.
6 . The display module according to claim 2 , wherein at least part of the first surface is provided with a plurality of first shape portions arranged in the predetermined direction, and the plurality of first shape portions comprise a plurality of racks arranged in an arrangement direction of the attaching region and the engaging region in the engaging region; the outer circumference of the rotating shaft is provided with a plurality of second shape portions, and the plurality of second shape portions are formed with a gear arranged in a circumferential direction of the rotating shaft and engaging with the racks.
7 . The display module according to claim 6 , wherein a cross section of the plurality of the first shape portions is wave-shaped.
8 . The display module according to claim 2 , wherein the at least one first shape portion comprises a plurality of first shape portions disposed on at least part of the first surface and arranged in the predetermined direction, the plurality of first shape portions comprise a plurality of second through holes uniformly arranged in the engaging region, the outer circumference of the rotating shaft is provided with a plurality of second shape portions, and the plurality of second shape portions are a plurality of protrusions arranged in a circumferential direction of the rotating shaft and engaged with the second through holes.
9 . The display module according to claim 2 , wherein the display panel comprises a rotating shaft, the rotating shaft is enabled to rotate forward or reverse in a direction of its own axis, the support layer further comprises a guiding region on the first surface, the guiding region and the attaching region are located at two sides of the engaging region respectively, and the guiding region and the attaching region are located at two sides of the rotating shaft when the support layer and the display panel are arranged around the rotating shaft.
10 . The display module according to claim 2 , wherein the display panel comprises two rotating shafts, each of two rotating shafts is rotatable around their own axes forwardly or reversely, rotating directions of the two rotating shafts are opposite to each other, the support layer and the display panel arranged around the two rotating shafts are divided into a part in the first state and a part in the second state by the two rotating shafts, and the part in the second state is located directly below the part in the first state.
11 . The display module according to claim 1 , wherein the second frame and the first frame enclose a first window, the second frame and the first frame are configured to approach or move away from each other to change an area of the first window, and a first portion of the display panel is arranged at the first window.
12 . The display module according to claim 11 , wherein a second window is further arranged at a position corresponding to the part in the second state in the display panel between the second frame and the first frame, and the part in the second state in the display panel is further provided with an additional visible part.
13 . The display module according to claim 11 , wherein a guide rail and a slider engaged with each other are arranged in the second frame and the first frame respectively.
14 . The display module according to claim 11 , wherein the first frame comprises a first edge frame extending parallel to the rotating shaft, the second frame comprises a second edge frame extending parallel to the rotating shaft, and the rotating shaft is arranged at at least one of the first edge frame and the second edge frame.
15 . The display module according to claim 1 , wherein the first detecting portion and the second detecting portion are arranged opposite to each other in an axial direction perpendicular to the rotating shaft.
16 . The display module according to claim 1 , wherein the display module comprises a moving state and a suspending state,
in the moving state, the second frame and the first frame approach to or move away from each other, and the rotating shaft drives the support layer to rotate, such that a part of the display panel is switched between the first state and the second state;
in the suspending state, a distance between the second frame and the first frame remains unchanged, and the rotating shaft suspend rotating;
the display module further comprises a tension state, and
when the moving state is switched to the suspending state, the distance between the second frame and the first frame is maintained at the suspending state, and the rotating shaft drives the support layer to rotate at a predetermined angle to tension a part in the first state in the display panel.
17 . The display module according to claim 16 , wherein the predetermined angle is 1 degree to 3 degrees.
18 . The display module according to claim 1 , wherein the support layer is made of a steel plate.
19 . A display device, comprising the display module according to claim 1 .