CN209859506U - Flexible display device - Google Patents

Flexible display device Download PDF

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Publication number
CN209859506U
CN209859506U CN201920519864.2U CN201920519864U CN209859506U CN 209859506 U CN209859506 U CN 209859506U CN 201920519864 U CN201920519864 U CN 201920519864U CN 209859506 U CN209859506 U CN 209859506U
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China
Prior art keywords
flexible display
curled
plate layer
layer
display screen
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CN201920519864.2U
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Chinese (zh)
Inventor
张卓
韩文
王芳
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN201920519864.2U priority Critical patent/CN209859506U/en
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Abstract

The application provides a flexible display device, which comprises a shell component and a flexible display screen positioned in the shell component; the flexible display screen comprises a back plate layer, a display panel positioned on the back plate layer and a cover plate layer positioned on the display panel; when the flexible display screen is curled, the back plate layer forms a first curled part, the display panel forms a second curled part, and the cover plate layer forms a third curled part; the first curling part and the third curling part are positioned at the inner side of the second curling part. This application curls through dividing into the triplex with this flexible display screen, and the curling opposite direction of this first curling portion and this third curling portion for this second curling portion can make this flexible display screen curl into the cylinder with this first curling portion and this third curling portion parcel, has reduced the volume of this flexible display screen greatly, and the user of being convenient for carries.

Description

Flexible display device
Technical Field
The application relates to the field of display, in particular to a flexible display device.
Background
With the development of technology, the appearance of mobile electronic devices has changed dramatically, wherein flexible screens are receiving much attention due to their unique characteristics and great potential. Compared with the traditional screen, the flexible screen has the characteristics of strong flexibility and flexibility, the degree of accidental damage of equipment can be reduced, and the durability degree is far higher than that of other screens.
Existing flexible screens include foldable and rollable displays, which, while reducing the size of the panel to some extent, still occupy a large space.
Therefore, a flexible display device is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The application provides a flexible display device to solve the technical problem that current flexible screen occupies great space.
In order to solve the above problems, the technical solution provided by the present application is as follows:
a flexible display device is provided that includes a housing assembly and a flexible display screen located within the housing assembly;
the flexible display screen comprises a back plate layer, a display panel positioned on the back plate layer and a cover plate layer positioned on the display panel;
when the flexible display screen is curled, the back plate layer forms a first curled part, the display panel forms a second curled part, and the cover plate layer forms a third curled part;
the first curled portion and the third curled portion have different curling directions, and the second curled portion has the same curling direction as the first curled portion or the third curled portion, wherein the first curled portion and the third curled portion are located inside the second curled portion.
In the flexible display device of the present application,
the diameter of the circumscribed circle of the second curled portion is equal to the sum of the diameter of the circumscribed circle of the first curled portion and the diameter of the circumscribed circle of the third curled portion.
In the flexible display device of the present application, a circumscribed circle diameter of the first curled portion is equal to a circumscribed circle diameter of the third curled portion.
In the flexible display device of the present application, the back sheet layer is curled in a clockwise or counterclockwise direction to form the first curled portion;
the cover sheet layer is curled in a different curling direction from the back sheet layer in either a clockwise or counterclockwise direction to form the third curled portion;
the display panel is curled in a clockwise or counterclockwise direction to form the third curled portion.
In the flexible display device of the present application,
the flexible display screen further comprises a first bonding layer positioned between the back plate layer and the display panel and a second bonding layer positioned between the display panel and the cover plate layer;
when the flexible display screen is curled, the first bonding layer is separated from the back plate layer, the second bonding layer is separated from the cover plate layer, and the first bonding layer, the second bonding layer and the display panel are curled in a clockwise or counterclockwise direction to form the second curled portion.
In the flexible display device of the present application,
the flexible display screen further comprises a third bonding layer positioned between the back plate layer and the first bonding layer, and a fourth bonding layer positioned between the cover plate layer and the second bonding layer;
when the flexible display screen is curled, the third bonding layer is separated from the first bonding layer, and the second bonding layer is separated from the fourth bonding layer;
the back plate layer and the third bonding layer are curled in a clockwise or counterclockwise direction to form the first curled portion;
the cover sheet layer and the fourth bonding layer are curled in a different curling direction from the back sheet layer and the third bonding layer in a clockwise or counterclockwise direction to form the third curled portion.
In the flexible display device of the present application,
the flexible display screen further comprises a fixing part;
one end of the back plate layer, one end of the display panel and one end of the cover plate layer are connected with the fixing part;
when the flexible display screen is curled, the back plate layer, the display panel and the cover plate layer are curled from one end far away from the fixing part to the fixing part.
In the flexible display device of the present application,
the fixing part is internally provided with a processor, a driving chip and an external port.
In the flexible display device of the present application,
the flexible display screen further comprises a sliding part;
the sliding part and the fixed part are arranged in parallel;
when the flexible display screen is curled, the sliding part slides from one end, away from the fixing part, of the flexible display screen to the fixing part, and the back plate layer, the display panel and the cover plate layer are curled from one end, away from the fixing part, of the flexible display screen to the fixing part;
when the flexible display screen is unfolded, the sliding part slides from the fixing part to one end, far away from the fixing part, of the flexible display screen, so that the first curling part, the second curling part and the third curling part are unfolded to form the corresponding back plate layer, the display panel and the cover plate layer.
In the flexible display device of the present application,
the sliding part comprises a hollow-out area;
the sliding portion slides back and forth between the fixing portion and one end, far away from the fixing portion, of the flexible display screen through the hollow area.
In the flexible display device of the present application,
the flexible display screen further comprises a meshing area;
the occlusion area is positioned at the edge area of the flexible display screen;
wherein, be provided with the interlock subassembly in the interlock district.
In the flexible display device of the present application,
the bite assembly includes:
the display panel comprises at least one first bulge and at least one second bulge, at least one first groove and at least one second groove, wherein the first bulge is positioned on one side, close to the back plate layer, of the display panel, the second bulge is positioned on one side, close to the cover plate layer, of the display panel, the first groove is positioned on the back plate layer and is close to one side of the display panel, and the second groove is positioned on the cover plate layer and is close to one side of the display panel;
when the flexible display screen is unfolded, the sliding part slides from the fixing part to one end of the flexible display screen, which is far away from the fixing part, and the sliding part enables the first bulge on the display panel to be meshed with the first groove on the back plate layer and the second bulge on the display panel to be meshed with the second groove on the cover plate layer;
when the flexible display screen is curled, the sliding part slides from one end, away from the fixed part, of the flexible display screen to the fixed part, the first protrusion on the display panel is away from the first groove on the back plate layer, and the second protrusion on the display panel is away from the second groove on the cover plate layer.
In the flexible display device of the present application,
the flexible display screen further comprises a touch layer;
the touch layer is located on the display panel or the cover plate layer.
In the flexible display device of the present application,
the housing assembly includes a first housing;
when the flexible display screen is in a rolled state, the first rolled portion, the second rolled portion and the third rolled portion are located in the first housing.
In the flexible display device of the present application,
one end of the first shell is provided with a first opening;
when the flexible display screen is in a rolled state, the first rolled portion, the second rolled portion and the third rolled portion enter the first housing through the first opening.
In the flexible display device of the present application, an inscribed circle diameter of the first housing is larger than a circumscribed circle diameter of the second curl portion.
In the flexible display device of the present application,
the housing assembly further comprises a second housing;
one end of the second shell is provided with a second opening;
the first housing enters the second housing through the second opening.
In the flexible display device of the present application,
and a power supply assembly is arranged in the first shell or/and the second shell.
Has the advantages that: this application curls through dividing into the triplex with this flexible display screen, and the curling opposite direction of this first curling portion and this third curling portion for this second curling portion can make this flexible display screen curl into the cylinder with this first curling portion and this third curling portion parcel, has reduced the volume of this flexible display screen greatly, and the user of being convenient for carries.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram of a first film layer structure of a flexible display panel according to the present application;
FIG. 2 is a first rolled up view of a flexible display according to the present application;
FIG. 3 is a second rolled view of the flexible display of the present application;
FIG. 4 is a diagram of a third film layer structure of a flexible display panel according to the present application;
FIG. 5 is a block diagram of the flexible display in an expanded state according to the present application;
FIG. 6 is an enlarged view of area A of FIG. 5;
fig. 7 is a first structural view of a flexible display device according to the present application;
fig. 8 is a second structural view of the flexible display device of the present application.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases used in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and understanding, and is in no way limiting. In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 1, fig. 1 is a diagram of a first film layer structure of a flexible display panel according to the present application.
The flexible display device 100 includes a housing assembly 80 and a flexible display screen 300 positioned within the housing assembly 80.
The flexible display screen 300 includes a back plate layer 10, a display panel 20 located on the back plate layer 10, and a cover plate layer 30 located on the display panel 20.
In the present embodiment, the back sheet layer 10 is made of a corresponding flexible material resistant to bending, and the back sheet layer 10 can be rolled into any shape.
The display panel 20 is a flexible display panel 20. The display panel 20 may be an LCD liquid crystal display panel 20 or an OLED display panel 20. Like the back sheet layer 10, the display panel 20 may be rolled into any shape.
In the present embodiment, the OLED display panel 20 is taken as an example for explanation.
The display panel 20 may include an array substrate 201, a light emitting device layer 202 on the array substrate 201, and an encapsulation layer 203 on the light emitting device layer 202.
The cover plate layer 30 may include a polarizer 301 located on the display panel 20, a cover plate 302 located on the polarizer 301, an optical adhesive layer 303 located between the cover plate 302 and the polarizer 301, and the like, wherein the polarizer 301, the optical adhesive layer 303, and the cover plate 302 are made of a corresponding flexible material resistant to bending, and the cover plate layer 30 may be curled into any shape.
In this embodiment, the flexible display screen 300 further includes a touch layer.
The touch layer may be located on the encapsulation layer 203 of the display panel 20, or located within the display panel 20, or located in the cover plate layer 30, and the specific location is not limited in this application.
Referring to fig. 2, fig. 2 is a first rolling view of the flexible display panel of the present application.
Referring to fig. 3, fig. 3 is a second scrolling diagram of the flexible display panel of the present application.
When the flexible display 300 is rolled, the back sheet layer 10 forms a first rolled portion 11, the display panel 20 forms a second rolled portion 21, and the cover sheet layer 30 forms a third rolled portion 31.
The first curled portion 11 and the third curled portion 31 have different curling directions, and the second curled portion 21 has the same curling direction as the first curled portion 11 or the third curled portion 31.
In the present embodiment, the first curled portion 11 and the third curled portion 31 are located inside the second curled portion 21.
The back plate layer 10 is curled in a clockwise or counterclockwise direction to form the first curled portion 11; the cover sheet layer 30 is curled in a different curling direction from the back sheet layer 10, either clockwise or counterclockwise, to form the third curled portion 31; the display panel 20 is curled in a clockwise or counterclockwise direction to form the third curled portion 31.
In the present embodiment, the back sheet layer 10 is curled in a counterclockwise direction to form the first curled portion 11, the cover sheet layer 30 is curled in a clockwise direction to form the third curled portion 31, and the display panel 20 is curled in a counterclockwise direction to form the third curled portion 31.
In the film layer, the smaller the radius of the curled portion formed by curling, the greater the bending stress, and the more the film layer structure in the display panel 20 is, the smaller the bending stress that can be endured than the back sheet layer 10 and the cover sheet layer 30, so the present application will curl the final of the display panel 20. The first curled portion 11 and the third curled portion 31 are formed before the second curled portion 21, and the order of curling the two is not limited in the present application.
In the present embodiment, the circumscribed circle diameter of the second curled portion 21 is larger than the circumscribed circle diameter of the first curled portion 11, and the circumscribed circle diameter of the second curled portion 21 is larger than the circumscribed circle diameter of the third curled portion 31.
In the present embodiment, the circumscribed circle diameter of the second curled portion 21 may be equal to the sum of the circumscribed circle diameter of the first curled portion 11 and the circumscribed circle diameter of the third curled portion 31.
In this embodiment, when the thicknesses of the back sheet layer 10 and the cover sheet layer 30 are equal, the circumscribed circle diameter of the first curled portion 11 may be equal to the circumscribed circle diameter of the third curled portion 31.
Referring to fig. 1, the flexible display 300 further includes a first bonding layer 204 between the back plate layer 10 and the display panel 20, and a second bonding layer 205 between the display panel 20 and the cover plate layer 30.
The bonding layer is made of a material having a certain adhesiveness.
In this embodiment, the thickness of the first bonding layer 204 and the second bonding layer 205 may be 50 micrometers.
When the flexible display screen 300 is unfolded, the back plate layer 10 and the display panel 20 are bonded together by the first bonding layer 204, and the display panel 20 and the cover plate layer 30 are bonded together by the second bonding layer.
When the flexible display 300 is curled, the first bonding layer 204 is separated from the back sheet layer 10, the second bonding layer 205 is separated from the cover sheet layer 30, and the first bonding layer 204, the second bonding layer 205 and the display panel 20 are curled in a clockwise or counterclockwise direction to form the second curled portion 21.
When the second curled portion 21 is curled, since the film layer structure of the display panel 20 is fine, a slight scratch may reduce the quality of the panel, and the first bonding layer 204 and the second bonding layer 205 are curled together with the display panel 20, thereby preventing the display panel 20 from being scratched when being curled, and ensuring the stability of the display panel 20.
Referring to fig. 4, fig. 4 is a diagram illustrating a third film structure of the flexible display panel of the present application.
The flexible display 300 further includes a third bonding layer 101 between the back sheet layer 10 and the first bonding layer 204, and a fourth bonding layer 304 between the cover sheet layer 30 and the second bonding layer 205.
When the flexible display screen 300 is unfolded, the back plate layer 10 and the display panel 20 are bonded together by the first bonding layer 204 and the third bonding layer 101, and the display panel 20 and the cover plate layer 30 are bonded together by the second bonding layer and the fourth bonding layer 304.
When the flexible display 300 is curled, the third bonding layer 101 is separated from the first bonding layer 204, the second bonding layer 205 is separated from the fourth bonding layer 304, the back plate layer 10 and the third bonding layer 101 are curled in a clockwise or counterclockwise direction to form the first curled portion 11, and the cover plate layer 30 and the fourth bonding layer 304 are curled in a clockwise or counterclockwise direction to form the third curled portion 31, which is different from the curling direction of the back plate layer 10 and the third bonding layer 101.
The bonding of the first bonding layer 204 to the third bonding layer 101 and the bonding of the second bonding layer 205 to the fourth bonding layer 304 further ensure the adhesion among the back sheet layer 10, the display panel 20, and the cover sheet layer 30.
Referring to fig. 2, the flexible display 300 further includes a fixing portion 40.
One end of the back plate layer 10, the display panel 20, and the cover plate layer 30 is connected to the fixing portion 40. When the flexible display 300 is rolled, the back plate layer 10, the display panel 20, and the cover plate layer 30 are rolled from an end far from the fixing portion 40 to the fixing portion 40.
In this embodiment, the fixing portion 40 may be provided with other driving components such as a processor, a driving chip, and an external port.
In this embodiment, the fixing portion 40 may be a regular rectangular parallelepiped.
Referring to fig. 2 and 3, the flexible display 300 further includes a sliding portion 50.
The sliding portion 50 is disposed in parallel with the fixing portion 40.
In this embodiment, the sliding portion 50 may be a regular rectangular parallelepiped.
In the present embodiment, the sliding portion 50 is provided with a hollow-out area. The sliding portion 50 can slide back and forth between the fixing portion 40 and an end of the flexible display 300 away from the fixing portion 40 through the hollow area.
When the flexible display 300 is curled, the sliding portion 50 slides from the end of the flexible display 300 away from the fixing portion 40 to the fixing portion 40, and the back plate layer 10, the display panel 20, and the cover plate layer 30 are curled from the end away from the fixing portion 40 to the fixing portion 40.
Referring to fig. 5, fig. 5 is a structural diagram of the flexible display screen in an unfolded state according to the present application.
When the flexible display panel 300 is unfolded, the sliding portion 50 slides from the fixing portion 40 to an end of the flexible display panel 300 away from the fixing portion 40, so that the first, second, and third curled portions 11, 21, and 31 are unfolded to form the corresponding back sheet layer 10, the display panel 20, and the cover sheet layer 30.
Referring to fig. 6, fig. 6 is an enlarged view of a region a in fig. 5.
The flexible display 300 also includes a bite area 60.
The snap zone 60 is located at an edge region of the flexible display screen 300.
A bite assembly 70 is disposed within the bite region 60.
In this embodiment, the snap assembly 70 includes:
at least one first protrusion 701 and at least one second protrusion 702 are located on the display panel 20 near one side of the back plate layer 10, at least one first groove 703 is located on the back plate layer 10 near one side of the display panel 20, and at least one second groove 704 is located on the cover plate layer 30 near one side of the display panel 20. Alternatively, the first and second electrodes may be,
the display panel is located close to at least one first groove on one side of the back plate layer and close to at least one second groove on one side of the cover plate layer, located on the back plate layer and close to at least one first protrusion on one side of the display panel, and located on the cover plate layer and close to at least one second protrusion on one side of the display panel.
Referring to fig. 6, the first protrusion 701, the second protrusion 702, the first groove 703 and the second groove 704 may extend from the fixing portion 40 to an end of the flexible display 300 away from the fixing portion 40.
In this embodiment, the back plate layer 10 may further include two or more first grooves 703, the cover plate layer 30 may further include two or more second grooves 704, and the display panel 20 may further include two or more first grooves 703 and second grooves 704.
In this embodiment, in order to better match the back plate layer 10, the display panel 20, and the cover plate layer 30, the number of the first protrusions 701 is equal to the number of the first grooves 703, and the number of the second protrusions 702 is equal to the number of the second grooves 704.
When the flexible display 300 is unfolded, the sliding portion 50 slides from the fixing portion 40 to an end of the flexible display 300 away from the fixing portion 40, and the sliding portion 50 enables the first protrusion 701 on the display panel 20 to be engaged with the first groove 703 on the back plate layer 10, and the second protrusion 702 on the display panel 20 to be engaged with the second groove 704 on the cover plate layer 30.
When the flexible display screen 300 is curled, the sliding portion 50 slides from one end of the flexible display screen 300 away from the fixing portion 40 to the fixing portion 40, the first protrusion 701 on the display panel 20 is away from the first groove 703 on the back plate layer 10, and the second protrusion 702 on the display panel 20 is away from the second groove 704 on the cover plate layer 30.
In this embodiment, a certain pre-tightening force exists between the sliding portion 50 and the back plate layer 10, the display panel 20, and the cover plate layer 30.
When the flexible display screen 300 is unfolded, the sliding portion 50 is arranged at one end of the flexible display screen 300 far away from the fixing portion 40, and the sliding portion 50 enables the first protrusion 701 to be matched with the first groove 703 and the second protrusion 702 to be matched with the second groove 704, so that the back plate layer 10, the display panel 20 and the cover plate layer 30 are combined together under the pre-tightening force of the sliding portion 50, and a vacuum environment is formed among the back plate layer 10, the display panel 20 and the cover plate layer 30.
When the flexible display 300 is rolled, the sliding portion 50 slides toward the fixing portion 40, and the back plate layer 10, the display panel 20, and the cover plate layer 30 lose the pre-tightening force,
the first protrusion 701 is spaced apart from the first groove 703, the second protrusion 702 is spaced apart from the second groove 704, and the first curled portion 11, the second curled portion 21, and the third curled portion 31 are formed in the back sheet layer 10, the display panel 20, and the cover sheet layer 30.
Referring to fig. 7, fig. 7 is a first structural diagram of a flexible display device according to the present application.
The housing assembly 80 includes a first housing 81.
In this embodiment, the first housing 81 is a hollow shell. The first housing 81 is a rigid casing for protecting the flexible display screen 300.
When the flexible display 300 is in the rolled state, the first rolled portion 11, the second rolled portion 21 and the third rolled portion 31 may be placed in the first housing 81, preventing the display panel 20 from being scratched by external devices.
In this embodiment, one end of the first housing 81 is provided with a first opening 811.
When the flexible display 300 is in the rolled state, the first rolled portion 11, the second rolled portion 21 and the third rolled portion 31 enter the first housing 81 through the first opening 811.
In this embodiment, the diameter of the inscribed circle of the first housing 81 is larger than the circumscribed circle of the second curled portion 21, so that the flexible display 300 can be placed in the first housing 81.
Referring to fig. 8, fig. 8 is a second structural diagram of the flexible display device of the present application.
The housing assembly 80 also includes a second housing 82.
A second opening (not shown) is disposed at one end of the second housing 82, and the first housing 81 enters the second housing 82 through the second opening to protect the flexible display screen 300 in one step.
In this embodiment, a power module and the like are provided in the first housing 81 or/and the second housing 82.
When the flexible display device 100 is used, the flexible display panel 300 is taken out of the housing assembly 80, the first curling part 11, the second curling part 21 and the third curling part 31 are bonded together through the engaging assembly 70 and the bonding layer by the sliding part 50 to form the flexible display panel 300 in an unfolded state, and the flexible display panel 300 is connected with a power supply assembly on the housing assembly 80 through an external data line and a corresponding port to drive a display screen of the flexible display panel 300.
The application provides a flexible display device, which comprises a shell assembly and a flexible display screen positioned in the shell assembly; the flexible display screen comprises a back plate layer, a display panel positioned on the back plate layer and a cover plate layer positioned on the display panel; when the flexible display screen is curled, the back plate layer forms a first curled part, the display panel forms a second curled part, and the cover plate layer forms a third curled part; the first curled portion and the third curled portion are located inside the second curled portion. This application curls through dividing into the triplex with this flexible display screen, and the curling opposite direction of this first curling portion and this third curling portion for this second curling portion can make this flexible display screen curl into the cylinder with this first curling portion and this third curling portion parcel, has reduced the volume of this flexible display screen greatly, and the user of being convenient for carries.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application shall be determined by the appended claims.

Claims (18)

1. A flexible display device comprising a housing assembly and a flexible display screen located within the housing assembly;
the flexible display screen comprises a back plate layer, a display panel positioned on the back plate layer and a cover plate layer positioned on the display panel;
when the flexible display screen is curled, the back plate layer forms a first curled part, the display panel forms a second curled part, and the cover plate layer forms a third curled part;
the first curled portion and the third curled portion have different curling directions, and the second curled portion has the same curling direction as the first curled portion or the third curled portion, wherein the first curled portion and the third curled portion are located inside the second curled portion.
2. Flexible display device according to claim 1,
the diameter of the circumscribed circle of the second curled portion is equal to the sum of the diameter of the circumscribed circle of the first curled portion and the diameter of the circumscribed circle of the third curled portion.
3. The flexible display device of claim 2, wherein a diameter of a circumscribed circle of the first curl portion is equal to a diameter of a circumscribed circle of the third curl portion.
4. The flexible display device of claim 1, wherein the backplane layer is rolled in a clockwise or counterclockwise direction to form the first rolled portion;
the cover sheet layer is curled in a different curling direction from the back sheet layer in either a clockwise or counterclockwise direction to form the third curled portion;
the display panel is curled in a clockwise or counterclockwise direction to form the third curled portion.
5. Flexible display device according to claim 1,
the flexible display screen further comprises a first bonding layer positioned between the back plate layer and the display panel and a second bonding layer positioned between the display panel and the cover plate layer;
when the flexible display screen is curled, the first bonding layer is separated from the back plate layer, the second bonding layer is separated from the cover plate layer, and the first bonding layer, the second bonding layer and the display panel are curled in a clockwise or counterclockwise direction to form the second curled portion.
6. Flexible display device according to claim 5,
the flexible display screen further comprises a third bonding layer positioned between the back plate layer and the first bonding layer, and a fourth bonding layer positioned between the cover plate layer and the second bonding layer;
when the flexible display screen is curled, the third bonding layer is separated from the first bonding layer, and the second bonding layer is separated from the fourth bonding layer;
the back plate layer and the third bonding layer are curled in a clockwise or counterclockwise direction to form the first curled portion;
the cover sheet layer and the fourth bonding layer are curled in a different curling direction from the back sheet layer and the third bonding layer in a clockwise or counterclockwise direction to form the third curled portion.
7. Flexible display device according to claim 1,
the flexible display screen further comprises a fixing part;
one end of the back plate layer, one end of the display panel and one end of the cover plate layer are connected with the fixing part;
when the flexible display screen is curled, the back plate layer, the display panel and the cover plate layer are curled from one end far away from the fixing part to the fixing part.
8. Flexible display device according to claim 7,
the fixing part is internally provided with a processor, a driving chip and an external port.
9. Flexible display device according to claim 7,
the flexible display screen further comprises a sliding part;
the sliding part and the fixed part are arranged in parallel;
when the flexible display screen is curled, the sliding part slides from one end, away from the fixing part, of the flexible display screen to the fixing part, and the back plate layer, the display panel and the cover plate layer are curled from one end, away from the fixing part, of the flexible display screen to the fixing part;
when the flexible display screen is unfolded, the sliding part slides from the fixing part to one end, far away from the fixing part, of the flexible display screen, so that the first curling part, the second curling part and the third curling part are unfolded to form the corresponding back plate layer, the display panel and the cover plate layer.
10. Flexible display device according to claim 9,
the sliding part comprises a hollow-out area;
the sliding portion slides back and forth between the fixing portion and one end, far away from the fixing portion, of the flexible display screen through the hollow area.
11. Flexible display device according to claim 9,
the flexible display screen further comprises a meshing area;
the occlusion area is positioned at the edge area of the flexible display screen;
wherein, be provided with the interlock subassembly in the interlock district.
12. The flexible display device of claim 11,
the bite assembly includes:
the display panel comprises at least one first bulge and at least one second bulge, at least one first groove and at least one second groove, wherein the first bulge is positioned on one side, close to the back plate layer, of the display panel, the second bulge is positioned on one side, close to the cover plate layer, of the display panel, the first groove is positioned on the back plate layer and is close to one side of the display panel, and the second groove is positioned on the cover plate layer and is close to one side of the display panel;
when the flexible display screen is unfolded, the sliding part slides from the fixing part to one end of the flexible display screen, which is far away from the fixing part, and the sliding part enables the first bulge on the display panel to be meshed with the first groove on the back plate layer and the second bulge on the display panel to be meshed with the second groove on the cover plate layer;
when the flexible display screen is curled, the sliding part slides from one end, away from the fixed part, of the flexible display screen to the fixed part, the first protrusion on the display panel is away from the first groove on the back plate layer, and the second protrusion on the display panel is away from the second groove on the cover plate layer.
13. Flexible display device according to claim 1,
the flexible display screen further comprises a touch layer;
the touch layer is located on the display panel or the cover plate layer.
14. Flexible display device according to claim 1,
the housing assembly includes a first housing;
when the flexible display screen is in a rolled state, the first rolled portion, the second rolled portion and the third rolled portion are located in the first housing.
15. The flexible display device of claim 14,
one end of the first shell is provided with a first opening;
when the flexible display screen is in a rolled state, the first rolled portion, the second rolled portion and the third rolled portion enter the first housing through the first opening.
16. The flexible display device of claim 14, wherein an inscribed circle diameter of the first housing is larger than a circumscribed circle diameter of the second curl portion.
17. The flexible display device of claim 14,
the housing assembly further comprises a second housing;
one end of the second shell is provided with a second opening;
the first housing enters the second housing through the second opening.
18. The flexible display device of claim 17,
and a power supply assembly is arranged in the first shell or/and the second shell.
CN201920519864.2U 2019-04-16 2019-04-16 Flexible display device Active CN209859506U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120182A (en) * 2019-04-16 2019-08-13 武汉华星光电半导体显示技术有限公司 Flexible display apparatus
CN112018263A (en) * 2020-08-07 2020-12-01 武汉华星光电半导体显示技术有限公司 Flexible display device
WO2021238930A1 (en) * 2020-05-27 2021-12-02 京东方科技集团股份有限公司 Scroll-type display panel and scroll-type display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120182A (en) * 2019-04-16 2019-08-13 武汉华星光电半导体显示技术有限公司 Flexible display apparatus
CN110120182B (en) * 2019-04-16 2023-11-28 武汉华星光电半导体显示技术有限公司 Flexible display device
WO2021238930A1 (en) * 2020-05-27 2021-12-02 京东方科技集团股份有限公司 Scroll-type display panel and scroll-type display device
CN112018263A (en) * 2020-08-07 2020-12-01 武汉华星光电半导体显示技术有限公司 Flexible display device

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