CN112562519B - Foldable display device - Google Patents
Foldable display device Download PDFInfo
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- CN112562519B CN112562519B CN202011583331.4A CN202011583331A CN112562519B CN 112562519 B CN112562519 B CN 112562519B CN 202011583331 A CN202011583331 A CN 202011583331A CN 112562519 B CN112562519 B CN 112562519B
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- bending
- display device
- foldable display
- support plate
- folding line
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Abstract
The embodiment of the invention discloses a foldable display device. The foldable display device comprises a flexible display module and a support main body; the support main body of the bending area is flexible, and a first bending notch is formed in one side, away from the flexible display module, of the support main body; one side of the first bending notch, which is far away from the flexible display module, is also provided with a plurality of zigzag second bending notches, and one second bending notch extends along the folding line; the thickness of the support main body at the position of the second bending notch is gradually reduced on the surface of the parallel flexible display module and along the direction of the edge of the foldable display device towards the folding line. The embodiment of the invention can solve the problem that the film layer is easy to be dislocated and separated when the film layer is bent due to the fact that the position of the bending stress line cannot be effectively controlled by the conventional bendable display device, can effectively control the bending stress line to be overlapped with the preset folding line, ensures that the support main body in the bending area is bent according to the preset mode, and avoids the dislocation and separation of the film layer.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a foldable display device.
Background
An organic Light-Emitting diode (OLED) is a device capable of Emitting Light when energized, has the advantages of wide viewing angle, high contrast, low power consumption, light weight, thin thickness, and bending resistance, and is one of the best choices for manufacturing foldable display devices.
In the conventional foldable display device, a display panel is generally divided into a bending area and a non-bending area, a rigid structural support is generally arranged in the non-bending area of the display panel, and the display panel can be randomly bent without rigid support in the bending area, so that the display device can be folded. The foldable flexible display apparatus includes a flexible substrate or film made of a bendable material, such as plastic, to make the flexible display device bendable.
During the bending or folding process, repeated folding many times may form a maximum bending stress line, which, however, may not be parallel or straight to the folding line in the flexible display device, resulting in separation, delamination or cracking between the film layers in the flexible substrate.
Disclosure of Invention
The invention provides a foldable display device, which is used for effectively controlling the foldable display device to bend according to a preset position, so that a bending stress line is superposed with a preset folding line, and dislocation or separation of a film layer is avoided.
The embodiment of the invention provides a foldable display device which is characterized by being bent along a folding line, wherein the foldable display device comprises a bending area and two straight areas which are respectively connected with two opposite sides of the bending area; the foldable display device further includes:
a flexible display module;
the supporting main body is positioned on one side of the flexible display module, which is far away from the light emergent side;
the support main body of the bending area is flexible, and a first bending notch is formed in one side, away from the flexible display module, of the support main body; a plurality of second zigzag bending notches are further arranged on one side, away from the flexible display module, of the first bending notch, and one second bending notch extends along the folding line;
and the thickness of the support main body at the position of the second bending notch is gradually reduced in the direction parallel to the surface of the flexible display module and along the edge of the foldable display device towards the folding line.
In the embodiment of the invention, the foldable display device comprises a flexible display module and a support main body, wherein the support main body is arranged on one side of the flexible display module, which is far away from the light, the support main body of the bending area is flexible, a first bending notch is arranged on one side of the flexible display module, which is far away from the flexible display module, a plurality of zigzag second bending notches are further arranged on one side of the first bending notch, which is far away from the flexible display module, and one second bending notch extends along a folding line. The embodiment of the invention can solve the problem that the film layer is easy to be dislocated and separated when being bent due to the fact that the position of the bending stress line cannot be effectively controlled by the existing bendable display device, not only can the bending stress line be effectively controlled to be coincided with the preset folding line, but also the support main body of the bending area is ensured to be bent according to the preset mode, and the dislocation and separation of the film layer are avoided; but also can guarantee that foldable display device possesses regular frame outward appearance to can not influence the area in frame district and the design degree of difficulty of walking the line.
Drawings
Fig. 1 and 2 are schematic structural views of a related art foldable display device;
fig. 3 is a schematic structural diagram of a foldable display device according to an embodiment of the present invention;
FIG. 4 is a schematic view of the foldable display device shown in FIG. 3 in a folded state;
FIG. 5 is a schematic diagram of another foldable display device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another foldable display device provided in the embodiments of the present invention;
FIG. 7 is an enlarged partial view of FIG. 6 taken at the dashed line box;
fig. 8 is a schematic structural diagram of another foldable display device provided in the embodiment of the present invention;
fig. 9 is a schematic structural diagram of another foldable display device provided in the embodiments of the present invention;
fig. 10 is a schematic top view of a foldable display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As described in the background section, in the conventional flexible foldable display device, there is a problem that a maximum stress line of bending does not coincide with a designed folding line, so that the display device is not bent according to the designed folding line when being bent, thereby causing a problem that a film layer near a bending region is separated, delaminated or cracked. Fig. 1 and 2 are schematic structural views of a conventional foldable display device, and referring to fig. 1 and 2, in order to solve the above problem, a conventional foldable display device is generally provided with notches at both ends of a predetermined folding line, that is, at positions opposite to both sides of a flexible substrate, and the notches are used to reduce stress during bending, so that the entire foldable display device is bent along the predetermined folding line. It can be understood that current two relative edges at flexible substrate set up the mode of notch, can lead to panel marginal region to have the breach, make the frame district of panel irregular, not only influence display device's appearance structure, still can increase the design degree of difficulty that line isotructure was walked in the frame district to a certain extent, still can influence display device frame district area simultaneously, lead to frame district area increase.
In view of the above technical problems, embodiments of the present invention provide a foldable display device. Fig. 3 is a schematic structural view of a foldable display device according to an embodiment of the present invention, fig. 4 is a schematic structural view of the foldable display device shown in fig. 3 in a folded state, and referring to fig. 3 and 4, the foldable display device is folded along a folding line 1, and the foldable display device includes a folding area 100 and two flat areas 200 connected to opposite sides of the folding area 100, respectively; the foldable display device further includes: a flexible display module 10; the supporting main body 20 is positioned on one side of the flexible display module 10 departing from the light emitting side; the support main body 20 of the bending region 100 is flexible, and a first bending notch 21 is formed on one side away from the flexible display module 10; one side of the first bending notch 21, which is far away from the flexible display module 10, is also provided with a plurality of zigzag second bending notches 22, and one second bending notch 22 extends along the folding line 1; in a direction parallel to the surface of the flexible display module 10 and along the edge of the foldable display device towards the folding line 1, the thickness of the support body 20 at the position of the second bending notch 22 gradually decreases.
First, it can be understood that the foldable display device exists in both a flat state and a folded state. In the flat state, referring to fig. 3, the bending region 100 is flat, and the two flat regions 200 and the bending region 100 of the foldable display device are located on the same plane, and the foldable display device has the largest display panel; in the folded state, referring to fig. 4, the bending region 100 is bent, and the two flat regions 200 of the foldable display device are stacked on each other to be approximately parallel to each other, and the foldable display device can also display in a small area mode.
In this embodiment, at least the bending region 100 of the flexible display module 10 is flexible, and the flexible display module 10 may include a pixel unit, a pixel circuit for driving the pixel unit to emit light, and a chip and a circuit board for providing a driving signal to the pixel circuit. The flexible display module 10 may be an organic light emitting display module, which includes an array substrate and an array of organic light emitting units formed on the array substrate, wherein the array substrate has pixel driving circuits corresponding to the organic light emitting units one to one. In the support main body 20, the bending region 100 is flexible to ensure bending of the entire foldable display device; meanwhile, since the flat areas of the foldable display device need to be displayed in a flat manner, the supporting body 20 should have a certain rigidity in the two flat areas so as to serve as a supporting mechanism for the display. Here, the support body 20 may be configured as a rubber-iron integrated structure, that is, the support body 20 is made of a rigid material such as metal or glass in the straight region 200 and a flexible rubber material in the bending region 100, and the metal and the rubber are integrally formed by injection molding or other processes during preparation.
In addition, in the embodiment, the first bending notch 21 is disposed on the side of the bending region 100 of the support main body 20 away from the flexible display module 10, wherein the first bending notch 21 is substantially a groove disposed on the back side of the support main body 20, which can make the bending stress of the entire support main body 20 concentrated on the bending region 100, that is, make the entire support main body 20 realize bending in the bending region 100, and confine the bent folding line 1 in the bending region 100. The first bending notches 21 are provided with a plurality of second bending notches 22, the second bending notches 22 are also a plurality of grooves parallel to the folding line 1, and in a direction parallel to the surface of the flexible display module 10 and along the edge of the foldable display device toward the folding line 1, the thickness of the supporting main body 20 at the positions of the second bending notches 22 is gradually reduced, which substantially means that the plurality of second bending notches 22 arranged along the direction perpendicular to the folding line 1 are smaller in thickness as approaching the folding line 1, and the thickness of the supporting main body 20 at the positions of the second bending notches 22 arranged corresponding to the folding line 1 and extending along the folding line 1 is minimum. It will be appreciated that the smaller the thickness of the support body 20, the higher its degree of deformability, and the less stress it will be subjected to during bending, making it easier to bend. Based on this, the degree of deformation that the second bending notch 22 disposed corresponding to the folding line 1 can bear is larger, or the bending stress under the same deformation is the smallest, so that bending is easier to occur, in other words, the bending stress of the bending region 100 will be more concentrated in the second bending notch 22 when bending, so that the maximum stress line of bending falls in the second bending notch 22, and the superposition of the maximum stress line of bending and the designed folding line is realized. In addition, can understand, the support main part 20 of bending zone 100 is buckled when buckling both sides to the lateral buckling who is kept away from flexible display module, can make the lower surface extrusion and the deformation of the support main part 20 of bending zone 100 serious, and the shape that sets up second bending notch 2 is the zigzag, deformation when can more laminating bending, make whole first bending notch 21 and wherein second bending notch 22 homoenergetic absorb deformation, thereby control the stress distribution of buckling effectively, the position of control stress line.
In this embodiment, through setting up including flexible display module assembly and support main part in collapsible display device, wherein support the main part setting and deviate from the one side of light-emitting at flexible display module assembly, the support main part in bending zone is the flexibility, and the one side that deviates from flexible display module assembly sets up first bending notch, the one side that first bending notch deviates from flexible display module assembly still is provided with a plurality of second bending notches of zigzag, and there is a second bending notch and extends along the folding line, in the direction that parallel flexible display module assembly surface and along collapsible display device edge towards the folding line, the support main part thickness that the second bending notch position was located diminishes gradually, can confine the folding line of this collapsible display device in bending zone, and through the regulation and control to the bending deformation ability of the support main part of second bending notch position, control the biggest bending stress to concentrate in the second bending notch that the folding line corresponds, make the biggest bending stress line coincide with the folding line. The embodiment of the invention can solve the problem that the film layer is easy to be dislocated and separated when being bent due to the fact that the position of the bending stress line cannot be effectively controlled by the conventional bendable display device, not only can the bending stress line be effectively controlled to be coincided with the preset folding line, but also the support main body of the bending area is ensured to be bent according to the preset mode, and the dislocation and separation of the film layer are avoided; but also can guarantee that foldable display device possesses regular frame outward appearance to can not influence the area in frame district and the design degree of difficulty of walking the line.
It should be noted that, in the embodiments of the present invention, there are various embodiments in which the thickness of the supporting body at the position of the second bending notch gradually decreases in the direction parallel to the surface of the flexible display module and along the edge of the foldable display device toward the folding line. In one embodiment as shown in fig. 3, the first bending notch 21 has a uniform thickness except for the second bending notch 22, and the depth of the second bending notch 22 is sequentially increased in a direction toward the folding line 1 along the edge of the foldable display device.
It will be appreciated that this embodiment is essentially provided with a first bending recess 21 of constant depth, whereas a plurality of second bending recesses 22 of varying depth are provided in the first bending recess 21. Obviously, on the basis that the thickness of the support body 20 is uniform at the positions other than the second bending notches 22, the depth of the second bending notches 22 determines the thickness of the support body at the positions, and the deeper the second bending notches 22, the thinner the thickness of the support body at the positions is. At this time, the supporting main body is easier to bend in the second bending notch 22, and the position where the thickness of the supporting main body 20 is the thinnest is easier to bend, that is, the maximum stress line of the bending can be effectively controlled to coincide with the preset folding line, so that the supporting main body 20 of the bending area 100 is ensured to bend according to the preset mode, and the film layer near the bending position is prevented from being dislocated and separated.
In the above embodiment, the thickness of the support body of the bending region is adjusted by the depth of the second bending notch, so as to control the bending stress concentration position of the support body of the bending region. In another embodiment of the present invention, it may also be provided that the thickness of the region of the first bending notch except the second bending notch is gradually decreased along the direction from the edge of the foldable display device to the folding line, that is, the depth of the first bending notch is used to adjust the thickness of the support main body of the bending region.
Fig. 5 is a schematic structural view of another foldable display device provided in an embodiment of the present invention, and referring to fig. 5, in particular, the foldable display device has a gradually decreasing thickness of a region of the first bending notch 21 except for the second bending notch 22 in a direction along an edge of the foldable display device toward the folding line 1. Further, it may be provided that the second bending notches 22 are all equal in depth in a direction toward the folding line 1 along the edge of the foldable display device.
At this time, on the premise that the depths of the second bending notches 22 are all equal, the thickness of the support body at the position of the second bending notch 22 depends on the arrangement mode of the inner surface of the first bending notch 21. As shown in fig. 5, when the inner surface of the first bending notch 21 is concave towards the centerline, i.e. the position of the folding line 1, it can be ensured that the closer to the folding line 1, the smaller the thickness of the supporting body at the position of the second bending notch 22 is, and at this time, the stress of the supporting body in the bending region is more easily concentrated on the folding line 1, so that the maximum stress line coincides with the folding line 1, thereby effectively controlling the position of the maximum stress line, ensuring that the film is bent according to a predetermined position, and avoiding the dislocation and separation of the film at the bending position.
Of course, in the embodiment of the present invention, the depth of the first bending notch and the depth of the second bending notch may also be used to adjust the thickness of the support body at the position of the second bending notch. Fig. 6 is a schematic structural diagram of another foldable display device provided in an embodiment of the present invention, and referring to fig. 6, in the foldable display device, the thickness of the region of the first bending notch 21 except for the second bending notch 22 is gradually increased along the direction from the edge of the foldable display device to the folding line 1. And, the depth of the second bending notch 22 is sequentially deepened in a direction toward the folding line 1 along the edge of the foldable display device.
With continuing reference to fig. 3 and 6, in the embodiment of the present invention, when the depths of the second bending notches 22 are sequentially increased along the direction of the edge of the foldable display device toward the folding line 1, the depth difference between any two adjacent second bending notches 22 is equal. Fig. 7 is a partial enlarged view of the dotted frame shown in fig. 6, and referring to fig. 7, in particular, in this embodiment, the depth difference Δ d between two adjacent second bending notches may be set to be in the range of 0.1-2mm.
It will be appreciated that the depth of the second bending notches 22 directly affects the thickness of the support body at the corresponding location, which determines the ability of the support body to withstand deformation when bent. In the foldable display device shown in fig. 3 or 6, the depth difference between any two adjacent second bending notches 22 is equal, which indicates that the difference between the concentration degrees of the stress at the positions of the second bending notches 22 is equal, and a gradual deformation bearing capacity can be achieved in the first bending notch, and the stress is concentrated from the edge to the center, so that the stress is concentrated on the folding line. In addition, because the thickness of supporting the main part itself is thinner, the degree of depth of the first notch of buckling is shallower, the degree of depth of the second notch of buckling is shallower simultaneously, the degree of depth difference delta d that sets up two adjacent second notches of buckling is not less than 0.1mm, can guarantee that two adjacent second notches of buckling have obvious stress difference, and set up the degree of depth difference delta d simultaneously and be not higher than 2mm, can guarantee that the stress change changes more slowly and gradually, stress can concentrate gradually in the second notch of buckling that the folding line in the middle of corresponds when buckling, thereby make the biggest stress line of buckling accurately place in the folding line, the position of buckling is controlled accurately effectively, avoid the dislocation to buckle and arouse the separation of rete.
On the basis of the above embodiments, the embodiments of the present invention provide other embodiments for the support problem of the whole foldable display device in the flat state. Fig. 8 is a schematic structural diagram of another foldable display device according to an embodiment of the present invention, and referring to fig. 8, on the basis of the foldable display device, a sliding support assembly 24 may be further disposed in the support main body 20, and the sliding support assembly 24 includes a sliding support plate 241 and a support plate accommodating groove 242; the support plate receiving groove 242 is used for receiving the sliding support plate 241 when the foldable display device is in a folded state, and the sliding support plate 241 is used for extending out of the support plate receiving groove 242 and supporting the flexible display module 10 of the bending region 100 when the foldable display device is in a flat state.
Among them, it can be understood that, since the support body 20 of the bending region 100 has the first bending notch 21, after the foldable display device is straightly extended, the support body 20 still has the capability of being bent again, i.e. is not fixed in a straight state, so that the bending is easy to occur. The sliding support assembly 24, which is composed of the sliding support plate 241 and the support plate receiving groove 242, is responsible for performing a flat support for the entire foldable display device, and ensures the fixing of the support main body 20 of the bending region 100 in a flat state. Specifically, the sliding support plate 241 has the same rigidity as that of the support body 20 of the flat region 200, and in the flat state, the sliding support plate 241 can cover the first bending notch 21, so that the support body 20 of the bending region 100 is in the rigid flat state.
In an embodiment of the present invention, in particular, with continued reference to fig. 8, the support body 20 is provided with a first flat portion 231 and a second flat portion 232 at positions corresponding to the flat region 200, the support plate accommodating groove 242 is provided in the first flat portion 231, and the opening of the support plate accommodating groove 242 is provided on the side wall of the first flat portion 231 facing the second flat portion 232. The first flat portion 231 and the second flat portion 232 are both metal plates or glass plates with rigidity, and the support plate accommodating groove 242 is disposed in the first flat portion 231, so that when the foldable display device is in a bent state, the sliding support plate 241 can be accommodated in the support plate accommodating groove 242 without affecting the bending of the first bending notch 21; meanwhile, in the flat state, the sliding support plate 241 extends out of the support plate receiving groove 242 to cover the first bending notch 21, providing a rigid support for the first bending notch 21, and effectively preventing the first bending notch 21 from bending.
Of course, in consideration of the stress condition of the sliding support plate 241, in order to provide a stable rigid support, in the above embodiment, a support groove 2321 may be further disposed on the side wall of the second flat portion 232 facing the first flat portion 231, the support groove 2321 being disposed opposite to the support plate receiving groove 242, the support groove 2321 being used for receiving and supporting one end of the sliding support plate 241 when the sliding support plate 241 extends out of the support plate receiving groove 242. At this time, the sliding support plate 241 may be stressed on both sides in the extended state and effectively support the support body 20 of the bending region 100 using its own rigidity capability.
In addition, for the extension and retraction of the sliding support plate 241, in the embodiment of the present invention, a bare handle or a handle may be optionally disposed on the sliding support plate 241 for manually controlling the extension and retraction of the sliding support plate 241. Of course, the embodiment also provides other embodiments to realize the automatic extension and retraction of the sliding support plate. Fig. 9 is a schematic structural diagram of another foldable display device according to an embodiment of the present invention, and referring to fig. 9, optionally, in the foldable display device according to the embodiment of the present invention, a sliding driving assembly 25 may be further disposed in the support main body 20, and the sliding driving assembly 25 is configured to drive the sliding support plate 241 to extend and retract in the support plate receiving groove 242. At this time, the sliding support plate 241 may implement an auto-telescoping function through the sliding driving assembly 25. With respect to the specific structure of slide drive assembly 25, one skilled in the art can design the actual structure, and in an embodiment of the present invention, with continued reference to fig. 9, an alternative slide drive assembly 25 includes a gear 251 and a rack 252; a rack 252 is fixedly provided on a surface of the sliding support plate 241, and a gear 251 is provided on an inside of the support body 20 to be engaged with the rack 252. The sliding support plate 241 is driven to slide by the gear 251 through the rack 252, so that the sliding path and length of the sliding support plate 241 can be precisely controlled, and the sliding support plate 241 is accurately aligned with the support groove 2321 and other mechanical structures.
The rack may be attached to the surface of the sliding support plate or may be integrally formed directly on the surface of the sliding support plate. The installation position of the gear and the rack can be designed by those skilled in the art according to the actual installation space and the transmission effect of the gear and the rack on the sliding support plate, and is not limited herein. Fig. 10 is a schematic top view of a foldable display device according to an embodiment of the present invention, and referring to fig. 10, for example, in another embodiment of the present invention, a rack 252 may be fixedly disposed on a side of a sliding support plate 241, and a gear 251 is disposed on an inner portion of a support body and engaged with the rack 252. Also, in this embodiment, the rack may be attached to the side of the sliding support plate or may be integrally formed on the side of the sliding support plate.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. A foldable display device, characterized in that the foldable display device is bent along a folding line, the foldable display device comprises a bending area and two straight areas respectively connected with two opposite sides of the bending area; the foldable display device further includes:
a flexible display module;
the supporting main body is positioned on one side of the flexible display module, which is far away from the light emergent side;
the support main body of the bending area is flexible, and a first bending notch is formed in one side, away from the flexible display module, of the support main body; a plurality of second zigzag bending notches are further arranged on one side, away from the flexible display module, of the first bending notch, and one second bending notch extends along the folding line;
in a direction parallel to the surface of the flexible display module and along the edge of the foldable display device toward the folding line, the thickness of the support main body at the position of the second bending notch is gradually reduced;
the thickness of the first bending notch is consistent except for the second bending notch; the depth of the second bending notch is sequentially deepened along the direction of the edge of the foldable display device towards the folding line; alternatively, the first and second liquid crystal display panels may be,
the thickness of the first bending notch except the second bending notch is gradually increased along the direction of the edge of the foldable display device towards the folding line; the depth of the second bending notch is sequentially deepened or uniformly deepened along the direction from the edge of the foldable display device to the folding line.
2. The foldable display device of claim 1, wherein when the depths of the second bending notches are sequentially deepened along the direction of the edge of the foldable display device toward the folding line, the depth difference between any two adjacent second bending notches is equal.
3. The foldable display device of claim 2, wherein the depth difference between two adjacent second bending notches ranges from 0.1mm to 2mm.
4. The foldable display device of claim 1, wherein the support body further comprises a sliding support assembly, the sliding support assembly comprising a sliding support plate and a support plate receiving slot;
the support plate accommodating groove is used for accommodating the sliding support plate when the foldable display device is in a folded state, and the sliding support plate is used for extending out of the support plate accommodating groove and supporting the bending area when the foldable display device is in a flat state.
5. The foldable display device of claim 4, wherein the support body is provided with a first flat portion and a second flat portion at a position corresponding to the flat region, the support plate accommodating groove is provided in the first flat portion, and an opening of the support plate accommodating groove is provided on a side wall of the first flat portion facing the second flat portion.
6. The foldable display device of claim 5, wherein a side wall of the second flat portion facing the first flat portion is provided with a support groove, the support groove is disposed opposite to the support plate receiving groove, and the support groove is configured to receive and support an end of the sliding support plate when the sliding support plate extends out of the support plate receiving groove.
7. The foldable display device of claim 4, wherein the support body is further provided with a sliding driving assembly for driving the sliding support plate to telescope in the support plate accommodating groove.
8. The foldable display device of claim 7, wherein the sliding drive assembly comprises a gear and a rack; the rack is fixedly arranged on the surface or the side edge of the sliding support plate, and the gear is arranged in the support main body or on the side edge and meshed with the rack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011583331.4A CN112562519B (en) | 2020-12-28 | 2020-12-28 | Foldable display device |
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| CN202011583331.4A CN112562519B (en) | 2020-12-28 | 2020-12-28 | Foldable display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113077721B (en) * | 2021-04-16 | 2022-08-05 | 合肥维信诺科技有限公司 | Display panel, manufacturing method thereof and display device |
| CN113178133A (en) * | 2021-05-06 | 2021-07-27 | 合肥维信诺科技有限公司 | Composite support film and display device |
| CN113362712B (en) * | 2021-06-15 | 2023-01-24 | 武汉华星光电半导体显示技术有限公司 | Flexible display module |
| CN113393773A (en) * | 2021-06-29 | 2021-09-14 | 合肥维信诺科技有限公司 | Flexible display module, preparation method thereof and display device |
| CN113920877B (en) * | 2021-10-20 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Display panel and display terminal |
| CN114093273A (en) * | 2021-12-08 | 2022-02-25 | 武汉华星光电半导体显示技术有限公司 | Display device |
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