CN113963628A - Flexible display panel and display device - Google Patents
Flexible display panel and display device Download PDFInfo
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- CN113963628A CN113963628A CN202111305711.6A CN202111305711A CN113963628A CN 113963628 A CN113963628 A CN 113963628A CN 202111305711 A CN202111305711 A CN 202111305711A CN 113963628 A CN113963628 A CN 113963628A
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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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- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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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 provides a flexible display panel and a display device. The flexible display panel includes: the first non-bending area and the second non-bending area are oppositely arranged; a bending region connected between the first non-bending region and the second non-bending region; and the shifting assembly is positioned between the first non-bending area and the second non-bending area and is used for adjusting the bending radian of the bending area. According to the embodiment of the application, the shifting assembly is arranged between the first non-bending area and the second non-bending area, the bending radian of the bending area can be adjusted by the shifting assembly, so that the stress of the bending area can be adjusted, and the risk of crack generation is reduced.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a flexible display panel and a display device.
[ background of the invention ]
Organic light emitting display panels are widely popularized because of their excellent flexibility. In order to realize narrow-frame and full-screen display of an existing organic light-emitting display panel, a driving chip (such as a data integrated circuit IC, a Flexible Printed Circuit (FPC), and the like) is usually bent to the back of the display side of the display panel, so that the effective display area of the display side is increased, and the screen occupation ratio is improved.
However, the bending region of the organic light emitting display panel may cause a large stress on the internal circuit of the organic light emitting display panel, which may easily cause cracks, thereby affecting the manufacturing yield of the organic light emitting display panel. Therefore, on the basis of improving the screen ratio, how to avoid the bending area of the organic light emitting display panel from affecting the manufacturing yield becomes a problem to be solved by manufacturers of the organic light emitting display panel.
[ summary of the invention ]
In view of the above, embodiments of the present invention provide a method for solving the problem of cracks in the bending region due to bending stress in the prior art.
In one aspect, an embodiment of the present invention provides a flexible display panel, where the flexible display panel includes: the first non-bending area and the second non-bending area are oppositely arranged; a bending region connected between the first non-bending region and the second non-bending region; and the shifting assembly is positioned between the first non-bending area and the second non-bending area and is used for adjusting the bending radian of the bending area.
In some embodiments, the displacement assembly includes first and second oppositely disposed support structures, and a movable member located between the first and second support structures; the movable piece is used for driving the first supporting structure to move, or the movable piece is used for driving the second supporting structure to move.
In some embodiments, the movable member comprises a drive unit, and a transmission unit connected to the drive unit; the transmission unit is positioned on the first support structure and drives the first support structure to move under the driving of the driving unit; or the transmission unit is positioned on the second support structure and drives the second support structure to move under the driving of the driving unit.
In some embodiments, the drive unit comprises a gear and the transmission unit comprises a rack, the rack being in mesh with the gear.
In some embodiments, the rack extends in a direction parallel to the direction of relative translational movement of the first end and the second end of the bending zone.
In some embodiments, the driving unit further includes a transmission shaft connected to the gear, an extending direction of the transmission shaft is perpendicular to an extending direction of the rack, and the transmission shaft is configured to drive the gear to rotate.
In some embodiments, the flexible display panel further comprises a first flexible support film and a second flexible support film; the first flexible support film is positioned on one side of the first non-bending area facing the second non-bending area, and the second flexible support film is positioned on one side of the second non-bending area facing the first non-bending area; the first flexible support film is provided with a first end face close to the bending area, and the second flexible support film is provided with a second end face close to the bending area; the displacement assembly is located between the first flexible support membrane and the second flexible support membrane, the displacement assembly being for aligning the first end face and the second end face.
In some embodiments, the displacement assembly is connected to the first flexible support membrane or the displacement assembly is connected to the second flexible support membrane.
In some embodiments, the first non-inflection region includes a display region for displaying a picture; a heat dissipation film is further arranged between the first flexible support film and the second flexible support film and is positioned on one side, facing the first non-bending area, of the displacement assembly; the first supporting structure is bonded with the heat dissipation film, and the second supporting structure is bonded with the second flexible supporting film; or the second support structure is bonded with the heat dissipation film, and the first support structure is bonded with the second flexible support film.
In some embodiments, the flexible display panel further comprises a pin area located on a side of the second non-bending area away from the shift assembly.
In some embodiments, the flexible display panel further includes a polarizer located on a side of the first non-bending region away from the shift assembly.
In some embodiments, the second non-inflection region includes a display region for displaying a picture.
In another aspect, an embodiment of the present invention provides a display device, including the flexible display panel according to any one of the above embodiments.
The application provides a flexible display panel and display device through set up the aversion subassembly between first non-bending area and the non-bending area of second, and the crooked radian in bending area can be adjusted to this aversion subassembly, can adjust the stress magnitude in bending area from this, reduces the risk that the crackle produced.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display panel provided in an embodiment of the present application;
fig. 2 illustrates a curvature of a bending region of a flexible display panel according to an embodiment of the present disclosure;
fig. 3 is a curvature of a bending region of another flexible display panel provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a shift assembly provided in an embodiment of the present application;
FIG. 5 is a cross-sectional structural view of the displacement assembly of FIG. 4;
FIG. 6 is a schematic view of the displacement assembly shown in FIG. 4 rotated counterclockwise to move the first support structure;
FIG. 7 is a schematic view of the shifting unit shown in FIG. 4 rotating clockwise to move the second support structure;
fig. 8 is a schematic structural diagram of another flexible display panel provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of another flexible display panel provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of another flexible display panel provided in an embodiment of the present application;
fig. 11 is a schematic structural diagram of a display device according to an embodiment of the present application.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Fig. 1 is a schematic structural diagram of a flexible display panel 100 provided in the present application. As shown in fig. 1, the flexible display panel 100 includes: a first non-bending area 10 and a second non-bending area 20 which are oppositely arranged; a bending region 30 connected between the first non-bending region 10 and the second non-bending region 20; and a displacement assembly 40 positioned between the first non-bending region 10 and the second non-bending region 20, wherein the displacement assembly 40 is used for adjusting the bending arc of the bending region 30.
According to the embodiment of the application, the shifting assembly is arranged between the first non-bending area and the second non-bending area, the bending radian of the bending area can be adjusted by the shifting assembly, so that the stress of the bending area can be adjusted, and the risk of crack generation is reduced. For example, the bending radian of the bending area can be adjusted to be a right circular arc or a nearly right semi-circular arc through the shifting assembly in the embodiment of the application, and at the moment, the stress in the bending area is lower, so that cracks generated in the bending area are reduced.
With continued reference to fig. 1, the displacement assembly includes first and second oppositely disposed support structures 401 and 402, and a movable member 403 positioned between the first and second support structures 401 and 402; the movable member 403 is used to drive the first supporting structure 401 to move, or the movable member 403 is used to drive the second supporting structure 402 to move. The first supporting structure 401 and the second supporting structure 402 are both located between the first non-bending region 10 and the second non-bending region 20, wherein the first supporting structure 401 is connected to the first non-bending region 10, and the second supporting structure 402 is connected to the second non-bending region 20. When the movable element 403 moves the first supporting structure 401, the first non-bending region 10 can move along with the movement of the first supporting structure 401; alternatively, when the movable member 403 moves the second support structure 402, the second non-bending region 20 can move along with the movement of the second support structure 402. That is to say, the aversion subassembly of this application design can be connected with first non-bending region, second non-bending region respectively through setting up first bearing structure, second bearing structure, and then when driving one of them motion of first bearing structure, second bearing structure through the movable piece, drive one of them motion of first non-bending region, second non-bending region. Because the bending area is connected between the first non-bending area and the second non-bending area, when one of the first non-bending area and the second non-bending area moves, relative displacement is generated between the first non-bending area and the second non-bending area. As shown in fig. 2 and 3, a first end 301 of the bending region 30 is connected to the first non-bending region 10, a second end 302 of the bending region 30 is connected to the second non-bending region, and the first non-bending region 10 and the second non-bending region 20 move to different degrees to cause relative displacement of the two ends (301, 302) of the bending region to different degrees, thereby forming different bending radians. Consequently, this application drives two non-bending zone movements at bending zone both ends through setting up the aversion subassembly, adjusts the radian of buckling of bending zone then.
From the above analysis, the displacement assembly provided by the present application is mainly realized by the movement of the movable member when adjusting the bending arc of the bending area. In order to effectively and accurately control the movement of the movable member, the movable member includes a driving unit and a transmission unit connected to the driving unit. Wherein the movement of the drive unit and, consequently, the movement of the transmission unit can be controlled precisely. When the transmission unit is located first bearing structure, the transmission unit drives first bearing structure motion under drive unit's drive, because drive unit's motion can accurate control, consequently, first bearing structure's movement distance can accurate control, then the displacement volume in first non-bending zone can accurate control. When the transmission unit is located the second bearing structure, the transmission unit drives the second bearing structure to move under the drive of the drive unit, and the movement of the drive unit can be accurately controlled, so that the movement distance of the second bearing structure can be accurately controlled, and then the displacement of the second non-bending area can be accurately controlled. That is to say, the displacement assembly in this application makes the relative displacement volume between the first non-bending area and the second non-bending area obtain accurate control through setting up drive unit, finally, realizes the accurate control to bending area bending radian.
Optionally, the driving unit comprises a gear 4031, the transmission unit comprises a rack 4032, and the rack 4032 is engaged with the gear 4031. Fig. 4 and 5 are schematic structural diagrams of a shifting assembly provided in an embodiment of the present application, and fig. 6 and 7 respectively show a schematic diagram of clockwise rotation and counterclockwise rotation of the shifting assembly to move a support structure. As shown in fig. 4-7, the movable member in the displacement assembly is formed by a rack and pinion type transmission fit, so that the movement of the support structure can be precisely controlled, thereby controlling the relative displacement between the first non-bending region and the second non-bending region, and finally, the bending radian of the bending region can be precisely controlled. Specifically, the gear of the driving unit and the rack of the transmission unit have a determined transmission ratio by setting the number of teeth of the gear and the rack, so that when the output rotating speed of the driving unit is fixed, the number of rotation turns of the gear can be determined within a certain time, and the moving distance of the rack can be obtained according to the number of rotation turns of the gear and the transmission ratio. The moving distance of the rack is the relative displacement of the two ends of the bending area, so that the bending radian of the bending area can be quantitatively controlled.
Meanwhile, when the rack of the transmission unit is positioned on the first support structure, in order to ensure that the output of the driving unit can be accurately converted into the relative displacement at the two ends of the bending area, the extending direction of the rack is parallel to the moving direction of the relative translation of the first end and the second end of the bending area. The moving direction of the first end 301 and the second end 302 of the bending region in relative translation is the X direction in fig. 1. The rack 4032 of the transmission unit is driven by the gear 4031 of the driving unit to move, when the rack is driven by the rotation of the gear to move, the rack can drive the carrier (the first support structure) to move together, when the first support structure moves but the second support structure does not move, relative displacement occurs between the first support structure and the second support structure, relative displacement occurs between the first non-bending area and the second non-bending area (as shown in fig. 6), finally, relative displacement occurs between the first end and the second end of the bending area, and the bending radian of the bending area can be adjusted. If the extending direction of the rack is not parallel to the X direction, the moving distance of the rack in the X direction is only the component of the actual moving distance of the rack in the X direction, and the translation distance of the first end of the bending area relative to the second end in the X direction is also only the component of the actual moving distance of the rack in the X direction, so that the actual moving distance of the rack cannot be completely converted into the translation distance of the first end of the bending area relative to the second end in the X direction, and the bending radian of the bending area cannot be determined by the actual moving distance of the rack.
Optionally, the rack of the transmission unit may also be located on the second support structure, in order to ensure that the output of the driving unit can be accurately converted into the relative displacement amounts of the two ends of the bending region, and the extending direction of the rack of the transmission unit is parallel to the moving direction of the first end of the bending region relative to the second end in translation. The moving direction of the relative translation of the first end and the second end of the bending region is the X direction in fig. 1. The rack 4032 of the transmission unit is driven by the gear 4031 of the driving unit to move, when the rack is driven by the gear to move, the rack can drive the carrier (the second support structure) to move together, when the second support structure moves but the first support structure does not move, relative displacement occurs between the first support structure and the second support structure, relative displacement occurs between the first non-bending area and the second non-bending area (as shown in fig. 7), finally, relative displacement occurs between the first end and the second end of the bending area, and the bending radian of the bending area can be adjusted. If the extending direction of the rack is not parallel to the X direction, the moving distance of the rack in the X direction is only the component of the actual moving distance of the rack in the X direction, and the translation distance of the first end of the bending region relative to the second end in the X direction is also only the component of the actual moving distance of the rack in the X1 direction, so that the actual moving distance of the rack cannot be completely converted into the translation distance of the first end of the bending region relative to the second end in the X direction, and the bending radian of the bending region cannot be determined by the actual moving distance of the rack.
Further, the driving unit further comprises a transmission shaft 4033 connected with the gear, the extension direction of the transmission shaft 4033 is perpendicular to the extension direction of the rack 4032, and the transmission shaft is used for driving the gear to rotate. By arranging the transmission shaft, on one hand, the driving unit can be arranged at a position outside the non-bending area display area, so that the driving unit is ensured not to influence the normal display of the non-bending area; on the other hand, the driving unit drives the gear to rotate in a shaft transmission mode, the torque is large, the driving unit is convenient to control the rotating speed of the gear, and then the adjustment of the bending radian of the bending area is convenient to control.
Fig. 8 is a schematic structural diagram of another flexible display panel provided in the embodiment of the present application, and as shown in fig. 8, the flexible display panel further includes a first flexible support film 50 and a second flexible support film 60; the first flexible support film 50 is located on one side of the first non-bending region 10 facing the second non-bending region 20, and the second flexible support film 50 is located on one side of the second non-bending region 20 facing the first non-bending region 10; the first flexible support film 50 has a first end face 501 near the bending region, and the second flexible support film 60 has a second end face 601 near the bending region; the displacement assembly 40 is located between the first flexible support membrane 50 and the second flexible support membrane 60, and the displacement assembly 40 is used for aligning the first end face 501 and the second end face 601. Wherein the displacement assembly 40 is connected to the first flexible support membrane 50, or the displacement assembly 40 is connected to the second flexible support membrane 50.
In the application, the first flexible supporting film and the second flexible supporting film are arranged between the first non-bending area and the second non-bending area to serve as supporting carriers of the shifting assembly, so that the shifting assembly is prevented from directly contacting with the display panel, and the risk of interference caused by the shifting assembly on normal display is reduced. And because the first flexible supporting film and the second flexible supporting film both have good flexibility, the shifting assembly drives the first flexible supporting film or the second flexible supporting film to move, and the flexible supporting film can effectively transmit the movement of the first flexible supporting film or the second flexible supporting film to the flexible display panel, so that the relative displacement generated between the first flexible supporting film and the second flexible supporting film is directly reflected on the bending radian of the bending area.
Optionally, a heat dissipation film is further disposed between the first flexible support film and the second flexible support film. Fig. 9 is a schematic structural diagram of another flexible display panel provided in the embodiment of the present application, and as shown in fig. 9, a heat dissipation film 70 is located on a side of the displacement assembly 40 facing the first non-bending region 10; the first support structure 401 is bonded to the heat dissipation film 70 and the second support structure 402 is bonded to the second flexible support film 60. Optionally, the second support structure is bonded to the heat dissipation film, and the first support structure is bonded to the second flexible support film. Through setting up the heat dissipation membrane, can in time conduct the external environment with the heat of flexible display panel demonstration in-process, avoid display panel overheated and cause and show badly. Optionally, the heat dissipation film is a copper foil.
As shown in fig. 10, the flexible display panel 100 includes a first non-bending region 10, a bending region 30, and a second non-bending region 20, wherein the first non-bending region 10 includes a display region 101 for displaying a picture. In order to increase the screen ratio of the flexible display panel and realize full-screen display, the flexible display panel further includes a pin area 201, and the pin area 201 is located on a side of the second non-bending area 20 away from the shift assembly 40. That is to say, set up the back in normal display area (first non-bending region) with flexible display panel's pin district in this application to the screen that has improved normal display area accounts for than.
With continued reference to fig. 9, optionally, the flexible display panel further includes a polarizer 80, and the polarizer 80 is located on a side of the first bending region 20 away from the shifting unit 40. The side of the first non-bending region 10 away from the shifting unit 40, that is, the light-emitting side of the first non-bending region, can reduce the large-viewing-angle color shift of the display panel by disposing the polarizer 80 on the light-emitting side of the first non-bending region 20.
Optionally, as shown in fig. 10, a display area 202 for displaying a picture may also be provided in the second non-bending area 20, so as to display some contents that the user often focuses on, such as time, weather, and the like. Therefore, the effective display area of the flexible display panel is fully utilized, and the user experience is improved.
An embodiment of the present invention further provides a display device, including any one of the flexible display panels described above. As shown in fig. 11, fig. 11 is a schematic view of a display device according to an embodiment of the present invention, and the display device 001 includes the flexible display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 11 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The application provides a flexible display panel and display device through set up the aversion subassembly between first non-bending zone and the non-bending zone of second, and the crooked radian in bending zone can be adjusted to this aversion subassembly, can adjust the stress in bending zone from this, reduces the risk that the crackle produced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (13)
1. A flexible display panel, comprising:
the first non-bending area and the second non-bending area are oppositely arranged;
a bending region connected between the first non-bending region and the second non-bending region;
and the shifting assembly is positioned between the first non-bending area and the second non-bending area and is used for adjusting the bending radian of the bending area.
2. The flexible display panel of claim 1, wherein the displacement assembly comprises first and second oppositely disposed support structures and a movable member between the first and second support structures;
the movable piece is used for driving the first supporting structure to move, or the movable piece is used for driving the second supporting structure to move.
3. The flexible display panel according to claim 2, wherein the movable member comprises a driving unit, and a transmission unit connected to the driving unit;
the transmission unit is positioned on the first support structure and drives the first support structure to move under the driving of the driving unit; or
The transmission unit is located on the second supporting structure and drives the second supporting structure to move under the driving of the driving unit.
4. The flexible display panel of claim 3, wherein the driving unit comprises a gear and the transmission unit comprises a rack, wherein the rack is engaged with the gear.
5. The flexible display panel of claim 4, wherein the rack extends in a direction parallel to a direction of relative translational movement of the first end and the second end of the bending region.
6. The flexible display panel according to claim 4, wherein the driving unit further comprises a transmission shaft connected to the gear, the transmission shaft extends in a direction perpendicular to the direction in which the rack extends, and the transmission shaft is configured to rotate the gear.
7. The flexible display panel of any of claims 2-6, further comprising a first flexible support film and a second flexible support film;
the first flexible support film is positioned on one side of the first non-bending area facing the second non-bending area, and the second flexible support film is positioned on one side of the second non-bending area facing the first non-bending area;
the first flexible support film is provided with a first end face close to the bending area, and the second flexible support film is provided with a second end face close to the bending area;
the displacement assembly is located between the first flexible support membrane and the second flexible support membrane, the displacement assembly being for aligning the first end face and the second end face.
8. The flexible display panel of claim 7, wherein the displacement assembly is connected to the first flexible support film or the displacement assembly is connected to the second flexible support film.
9. The flexible display panel of claim 8,
the first non-bending area comprises a display area for displaying pictures;
a heat dissipation film is further arranged between the first flexible support film and the second flexible support film and is positioned on one side, facing the first non-bending area, of the displacement assembly;
the first supporting structure is bonded with the heat dissipation film, and the second supporting structure is bonded with the second flexible supporting film;
or the second support structure is bonded with the heat dissipation film, and the first support structure is bonded with the second flexible support film.
10. The flexible display panel of claim 1, further comprising a pin area on a side of the second non-bending area away from the displacement assembly.
11. The flexible display panel of claim 1, further comprising a polarizer on a side of the first inflection region away from the shifting assembly.
12. The flexible display panel of claim 1, wherein the second non-bending region comprises a display region for displaying a picture.
13. A display device comprising the flexible display panel according to any one of claims 1 to 12.
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| CN111886560A (en) * | 2018-03-27 | 2020-11-03 | 三星电子株式会社 | Electronic device with movable flexible display and operation method thereof |
| CN109545088A (en) * | 2018-12-06 | 2019-03-29 | 武汉华星光电半导体显示技术有限公司 | The display device that can dynamically bend |
| CN112040033A (en) * | 2019-06-03 | 2020-12-04 | 北京小米移动软件有限公司 | Terminal |
| CN113037896A (en) * | 2019-12-24 | 2021-06-25 | Oppo广东移动通信有限公司 | Flexible screen assembly and electronic equipment |
| US20210249627A1 (en) * | 2020-02-10 | 2021-08-12 | Samsung Display Co., Ltd. | Display device and method of fabricating the same |
| CN213519010U (en) * | 2020-08-17 | 2021-06-22 | 深圳柔宇显示技术有限公司 | Flexible display screen and electronic equipment |
| CN112489561A (en) * | 2020-12-09 | 2021-03-12 | 武汉天马微电子有限公司 | Foldable display device |
| CN112788162A (en) * | 2020-12-25 | 2021-05-11 | 厦门天马微电子有限公司 | Folding screen bending mechanism and mobile terminal |
| CN113066364A (en) * | 2021-03-15 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Flexible display device and preparation method thereof |
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