CN108986671B - Foldable screen and display device - Google Patents
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- 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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Abstract
The invention provides a foldable screen and a display device, wherein a bending area of the foldable screen comprises: a hard-to-bend region and a easy-to-bend region; the total thickness of the inorganic film in the easy-bending area is less than that of the inorganic film in the hard-bending area; the total thickness of the organic film in the easy-to-bend area is higher than that of the organic film in the difficult-to-bend area, so that the easy-to-bend area is easy to bend compared with the difficult-to-bend area, and the foldability of the display panel is realized. Therefore, the foldable screen disclosed by the embodiment of the invention provides a powerful foundation for prolonging the service life of the foldable display panel.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a foldable screen and a display device.
Background
With the continuous development of science and technology, more and more electronic devices with display functions are widely applied to daily life and work of people, bring great convenience to the daily life and work of people, and become an indispensable important tool for people at present.
The main component of the electronic device for realizing the display function is the display panel, and along with the continuous progress of science and technology and the continuous improvement of the requirements of people, the foldable flexible display panel is produced. For display and control, a large number of electronic components are necessarily designed in the display panel, and a user must damage the electronic components in the display panel when the flexible panel is folded, wherein the damage includes damage of the electronic components and damage of connecting lines between the electronic components, so that the service life of the foldable display panel is short.
Therefore, how to increase the service life of the foldable display panel is one of the technical problems that the skilled person needs to solve urgently.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a foldable screen and a display device.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a foldable screen, a bend region of the foldable screen comprising:
a hard-to-bend region and a easy-to-bend region;
the total thickness of the inorganic film in the easily bent area is less than that of the inorganic film in the difficultly bent area;
the total thickness of the organic films in the easy-bending area is higher than that of the organic films in the hard-bending area.
A display device to which the foldable screen according to any one of the embodiments of the present invention is applied.
Based on the above technical solution, in the solution provided in the embodiment of the present invention, the total thickness of the inorganic film in the bendable region is set to be less than that of the inorganic film in the hard-to-bend region; the total thickness of the organic film of the easy-bending area is set to be higher than that of the organic film of the hard-bending area, so that the easy-bending area is easy to bend compared with the hard-bending area, and the foldability of the display panel is realized. Therefore, the foldable screen disclosed by the embodiment of the invention provides a powerful foundation for prolonging the service life of the foldable display panel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a foldable screen according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a display area of a foldable screen according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a foldable screen bending area C according to another embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of a foldable screen bending area C according to another embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a foldable screen bending area C according to another embodiment of the present disclosure;
FIG. 6 is a schematic cross-sectional view of a foldable screen bending area C according to another embodiment of the present disclosure;
FIG. 7 is a schematic cross-sectional view of a foldable screen bending area C according to another embodiment of the present disclosure;
FIG. 8 is a schematic cross-sectional view of a folding area C of a foldable screen as disclosed in another embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a folding area C of a foldable screen as disclosed in another embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view of a folding area C of a foldable screen as disclosed in another embodiment of the present invention;
FIG. 11 is a partial view of a foldable screen according to the teachings of the present invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a foldable screen according to an embodiment of the present invention, where the display panel is divided into a display area a, a non-display area B, and a bending area C overlapping with a part of the display area a and the non-display area B, where the non-display area B is generally a frame area, in a technical solution disclosed in the embodiment of the present invention, the bending area C is divided into a hard bending area 100 and a easy bending area 200, the number of the easy bending areas 200 is at least 1, the hard bending areas 100 and the easy bending areas 200 are alternately distributed in a bending area in the display area along a first direction, and widths of each of the hard bending areas 200 and the hard bending areas 100 in the first direction may be the same or different. The hard bending region 100 and the easy bending region 200 are disposed in a second direction of the bending region C, and the first direction is perpendicular to the second direction.
Fig. 2 is a schematic cross-sectional view of a foldable screen bending region C disclosed in the embodiment of the present invention; referring to fig. 2, the hard bending region 100 and the easy bending region 200 each include:
a substrate 11;
a buffer layer 12, a metal layer 13, a passivation layer 14, an evaporation layer 15, and an encapsulation layer 16 disposed on the substrate 11.
The metal layer 13 may include: an active layer 13a, a gate electrode 13b, a source electrode 13c, a drain electrode 13d, a gate insulating layer 131 disposed between the active layer 13a and the gate electrode 13b, and an interlayer insulating layer 132 disposed between the gate electrode 13b and the source and drain electrodes 13c and 13 d. Wherein the source 13c and the drain 13d are located in the same layer, i.e., the source-drain layer.
The deposited layer 15 includes, but is not limited to, a light emitting element, which may be an OLED, but may also be an LED or other light emitting element.
The Encapsulation layer 16 includes a first inorganic Encapsulation layer 161, an organic Encapsulation layer 162 and a second inorganic Encapsulation layer 163 sequentially disposed on the deposition layer 15, and the Encapsulation layer 16 may be a Thin Film Encapsulation (TFE). Further, the dimensions of the first inorganic encapsulation layer 161 and the second inorganic encapsulation layer 163 are also defined, for example, the thickness of the first inorganic encapsulation layer 161 is not less than 30nm and not more than 1000nm, and the thickness of the second inorganic encapsulation layer 163 is not more than 100 nm.
Optionally, the substrate 11 is a substrate 11 made of a flexible insulating material, and has properties of being stretchable, bendable, or bendable, and the material includes, but is not limited to, a polyimide material (abbreviated as PI), a polycarbonate material (abbreviated as PC), a polyethylene terephthalate material (abbreviated as PET), and the like.
The buffer layer 12 and the passivation layer 14 are made of an organic film and/or an inorganic film, and the substrate 11 and the metal layer 13 and the deposition layer 15 are isolated by the organic film or the inorganic film. In the technical solution disclosed in the embodiment of the present invention, in order to make the easily bendable region 200 easily bendable, organic films are mostly used for isolation between the substrate 11 and the metal layer 13 of the easily bendable region 200 and between the metal layer 13 and the evaporation layer 15, and inorganic films are mostly used for isolation between the substrate 11 and the metal layer 13 and between the metal layer 13 and the evaporation layer 15 in the hardly bendable region 100, so that the total thickness of the inorganic films of the easily bendable region 200 is finally made smaller than that of the inorganic films of the hardly bendable region 100, and the easily bendable region 200 is easily bendable than the hardly bendable region 100.
As can be seen from the above solution, in the technical solution disclosed in the above embodiment of the present invention, referring to fig. 3, fig. 3 is a schematic cross-sectional view of a bending region C of another foldable screen disclosed in the embodiment of the present invention, by setting the total thickness of the inorganic film of the pliable region 200 to be lower than that of the difficult-to-bend region 100; the total thickness of the organic films of the flexible region 200 is set to be greater than that of the organic films of the difficult-to-bend region 100, the organic films of the flexible region 200 are used to replace the inorganic films of the difficult-to-bend region 100, so that the flexible region 200 is easily bent compared to the non-flexible region 100, the foldability of the display panel is realized, and the foldable region has specificity, i.e., the folding action is performed by the pliable region 200, while the non-pliable region 100 is not folded, therefore, the vulnerable parts can be pertinently arranged on the difficult-to-bend area 100 when the display screen is designed, when the foldable screen is folded, the hard bending area 100 is an inactive area, and at this time, the vulnerable devices in the hard bending area 100 are not damaged, so that the service life of the devices is prolonged, and the service life of the foldable screen is prolonged. Therefore, the foldable screen disclosed by the embodiment of the invention has longer service life, and provides a powerful basis for prolonging the service life of the foldable electronic equipment.
In the technical solution disclosed in the embodiment of the present invention, the buffer layer 12 and the passivation layer 14 are formed by an organic film and/or an inorganic film, the organic film is made of an organic material, and the inorganic film is made of an inorganic material, wherein the inorganic material includes, but is not limited to, silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, aluminum nitride, etc., and the organic material includes, but is not limited to, acrylic, PI, etc.
Specifically, in the foldable screen, the inorganic films are mainly distributed on the buffer layer 12 and the passivation layer 14, so that the total thickness of the inorganic films in the flexible region 200 of the foldable screen can be lower than that of the inorganic films in the hard-to-bend region 100 by changing the film layer structures of the buffer layer 12 and the passivation layer 14, and in particular, the film layer structure of the buffer layer 12 can be changed independently, the film layer structure of the passivation layer 14 can be changed independently, and of course, the film layer structures of the buffer layer 12 and the passivation layer 14 can be changed simultaneously.
Fig. 3 is a schematic structural diagram of a foldable screen disclosed in an embodiment of the present invention, and referring to fig. 3, the buffer layer 12 between the metal layer 13 of the easy-bending region 200 and the substrate 11 includes an organic film with a thickness greater than 0, and the buffer layer 12 between the metal layer 13 of the hard-bending region 100 and the substrate 11 is filled with an inorganic film made of an inorganic material. The thickness of the buffer layer 12 of the hard bending region 100 and the thickness of the buffer layer 12 of the easy bending region 200 may be different. The buffer layer 12 between the metal layer 13 of the pliable region 200 and the substrate 11 is divided into two layers, one layer is an organic film made of an organic material, and the other layer is an inorganic film made of an inorganic material, and the thickness of the organic film is greater than 0, and the thickness of the inorganic film may be 0. In this embodiment, the buffer layer 12 of the hard-to-bend region 100 is configured to be filled with an inorganic film, and the buffer layer 12 of the easy-to-bend region 200 is configured to be filled with an organic film at least in part of the thickness thereof, so that the total thickness of the inorganic film of the easy-to-bend region 200 of the foldable screen is smaller than that of the inorganic film of the hard-to-bend region 100, and the easy-to-bend region 200 is easily bent, thereby realizing that a specific region of the display screen is foldable.
In terms of the case that the buffer layer 12 between the metal layer 13 of the pliable region 200 and the substrate 11 is divided into two layers, in the technical solution disclosed in the embodiment of the present invention, the buffer layer 12 includes: fig. 4 is a schematic cross-sectional view of a foldable screen bending region C according to another embodiment of the present invention, in the embodiment disclosed in fig. 4, the organic film between the metal layer 13 and the substrate 11 is disposed on the substrate 11, and the inorganic film between the metal layer 13 and the substrate 11 is disposed between the organic film and the metal layer 13 in the easily bending region 200, in the embodiment disclosed in fig. 4, the inorganic film between the metal layer 13 and the substrate 11 is disposed on the substrate 11, and in the embodiment disclosed in fig. 3, the inorganic film between the metal layer 13 and the substrate 11 is disposed between the organic film and the metal layer 13 in the easily bending region 200. In the technical solutions disclosed in the embodiments corresponding to fig. 3 and 4, the thickness of the inorganic film in the buffer layer 12 of the pliable region 200 is smaller than that of the inorganic film in the buffer layer 12 of the hard-to-bend region 100. Also, the inorganic film in the buffer layer 12 may have an integral structure.
In order to further facilitate the bending of the easily bendable region 200, the overall thickness of the inorganic film passing through the easily bendable region 200 is less than that of the inorganic film passing through the hardly bendable region 100, and the structure of the evaporation layer 15 and the first inorganic encapsulation layer 161 in the easily bendable region 200 may be defined. Fig. 5 is a schematic cross-sectional view of a foldable screen bending region C according to another embodiment of the present invention, referring to fig. 5, in the pliable region 200, a distance between the evaporation layer 15, the first inorganic encapsulation layer 161 and the metal layer 13 is smaller than a distance between the evaporation layer 15, the first inorganic encapsulation layer 161 and the metal layer 13 of the difficult bending region 100, that is, a thickness of the passivation layer 14 of the pliable region 200 is smaller than a thickness of the passivation layer 14 of the difficult bending region 100, and the passivation layer 14 of the pliable region 200 and the passivation layers 14 of two adjacent difficult bending regions 100 form a groove structure, the passivation layer 14 of the pliable region 200 forms a groove bottom of the groove, and the passivation layer 14 of the difficult bending region 100 forms a groove wall of the groove. This configuration allows for easier bending when bending the foldable screen, as compared to a design in which the passivation layer 14 of the pliable region 200 and the passivation layer 14 of the non-pliable region 100 are of equal height.
Further, referring to fig. 6, fig. 6 is a schematic cross-sectional view of a foldable screen bending region C according to another embodiment of the present invention, and in the technical solution disclosed in the embodiment of fig. 6, the passivation layer 14 may be entirely made of an organic film made of an organic material.
Similar to the design idea of fig. 5, referring to fig. 7, fig. 7 is a schematic cross-sectional view of a foldable screen bending region C disclosed in another embodiment of the present invention, in the technical solution disclosed in the embodiment of fig. 7, the passivation layer 14 of the flexible region 200 is made of an inorganic film, the passivation layer 14 of the hard bending region 100 is made of an inorganic film and an organic film, and in the technical solution disclosed in the embodiment of fig. 7, the thickness of the inorganic film in the passivation layer 14 of the flexible region 200 is not greater than the thickness of the inorganic film in the passivation layer of the hard bending region 100. In the technical solution disclosed in this embodiment, the inorganic film in the passivation layer 14 is disposed on the metal layer 13, the organic film is disposed on the inorganic film, the evaporation layer 15 of the easy-to-bend region 200 is directly disposed on the inorganic film of the passivation layer 14, the evaporation layer 15 of the hard-to-bend region 100 is disposed on the organic film of the passivation layer 14, and the inorganic film in the passivation layer 14 may be an integrated structure.
Besides the design of the structural form of the buffer layer 12, a foldable screen with the total inorganic film thickness of the flexible region 200 being lower than that of the difficult-to-bend region 100 can be obtained, and the structure of the passivation layer 14 can be arranged, so that a foldable screen with the total inorganic film thickness of the flexible region 200 being lower than that of the difficult-to-bend region 100 can be obtained.
Based on the design idea of fig. 7, referring to fig. 8, fig. 8 is a schematic cross-sectional view of a foldable screen bending region C disclosed in another embodiment of the present invention, in the technical solution disclosed in the embodiment of fig. 8, a passivation layer 14 of the flexible region 200 is formed by an inorganic film and an inorganic film, a passivation layer 14 of the hard bending region 100 is formed by an organic film, and in the technical solution disclosed in the embodiment of fig. 8, a thickness of the inorganic film in the passivation layer 14 is smaller than a thickness of the inorganic film in the buffer layer 12 of the hard bending region 100.
Referring to fig. 8, the passivation layer 14 of the easy bending region 200 may be formed of two layers, one layer is an inorganic film, the other layer is an organic film, the thickness of the inorganic film may be 0, the thickness of the organic film is not 0, when the thickness of the inorganic film is 0, the structure of the easy bending region may be as shown in fig. 9, and fig. 9 is a schematic cross-sectional view of a foldable screen bending region C according to another embodiment of the present invention. The inorganic film in the passivation layer 14 of the flexible region 200 may be disposed on the metal layer 13, and the organic film in the passivation layer 14 of the flexible region 200 may be disposed between the inorganic film and the evaporation layer 15, or the organic film in the passivation layer 14 of the flexible region 200 may be disposed on the metal layer 13, and the inorganic film in the passivation layer 14 of the flexible region 200 may be disposed between the organic film and the evaporation layer 15. Referring to fig. 9, the passivation layer 14 of the hard bending region 100 may also be formed of an inorganic film and an organic film, wherein the inorganic film of the passivation layer 14 of the hard bending region 100 may be disposed on the metal layer 13, and at this time, the organic film of the passivation layer 14 of the hard-to-bend region 100 is disposed between the inorganic film and the evaporation layer 15, of course, the organic film of the passivation layer 14 of the hard bending region 100 may be disposed on the metal layer 13, and at this time, the inorganic film of the passivation layer 14 of the hard-to-bend region 100 is disposed between the organic film and the evaporation layer 15, and, in the solution disclosed in the embodiment of fig. 9, the thickness of the inorganic film in the passivation layer 14 of the hard-to-bend region 100 is not 0, and the thickness of the inorganic film in the passivation layer 14 of the hard bending region 100 is greater than that of the inorganic film in the passivation layer 14 of the flexible bending region 200.
Further, by combining the design of the buffer layer 12 with the design of the passivation layer 14, the present invention can also obtain a preferred design scheme, and the design structure of the buffer layer 12 and the passivation layer 14 can be seen in fig. 7. In the solution disclosed in the embodiment of fig. 7, all of the passivation layers 14 of the flexible region 200 are made of inorganic films, all of the buffer layers 12 of the flexible region 200 are made of organic films, all of the passivation layers 14 of the hard bending region 100 are made of inorganic films and organic films, all of the buffer layers 12 of the hard bending region 100 are made of inorganic films, and the inorganic film thickness of the passivation layer 14 of the flexible region 200 is not greater than the inorganic film thickness of the passivation layer 14 of the hard bending region 100.
Further, by combining the design of the buffer layer 12 shown in the embodiment of fig. 5 with the design of the passivation layer 14 shown in the embodiment of fig. 9, the present invention can also obtain a preferable design scheme, and the design structures of the buffer layer 12 and the passivation layer 14 can be seen in fig. 10. Fig. 10 is a schematic cross-sectional view of a foldable screen bending region C according to another embodiment of the present invention, in the solution disclosed in fig. 10, the passivation layer 14 and the buffer layer 12 of the flexible region 200 are all made of organic films, the passivation layer 14 of the hard bending region 100 is made of inorganic films and organic films, and the buffer layer 12 of the hard bending region 100 is all made of inorganic films.
Fig. 11 is a partial view of a foldable screen according to an embodiment of the present invention, and referring to fig. 11, in terms of layout, the present invention improves the lifetime of the foldable screen by disposing vulnerable components in a hard-to-bend region 100, and specifically, at least a scanning circuit of the foldable screen is disposed in the hard-to-bend region 100. Specifically, the hard-to-bend region 100 is divided into a pixel circuit region 110 and an external circuit region 120, where at least a pixel circuit 111, an anode, and the like are disposed in the pixel circuit region 110, and at least a scan circuit device is disposed in the external circuit region 120. In the flexible region 200, since the flexible region is easily bent and the electronic device in the flexible region is easily damaged, the flexible region 200 is provided with only the connection lines, the metal lines may be metal lines with good ductility, such as Al, Ti, Cu, Ag, etc., and the easily damaged electronic device, such as a TFT device, a capacitor device, a scan circuit, etc., is not provided in the region, and of course, the easily damaged device, such as a pixel device and an anode, may be provided in the easily bent region 200.
In the technical solution disclosed in the embodiment of the present invention, the thickness of each film layer of the foldable screen may be set according to a user's requirement, specifically, with respect to the technical solution disclosed in the embodiment of the drawings, the present invention further defines the size of each film layer of the foldable screen, specifically, taking the structure of the foldable screen disclosed in the embodiment of fig. 7 as an example, the thickness of the substrate 11 is 15um, the thickness of the buffer layer 12 is 1.6um, the thickness of the metal layer 13 is 0.6um, the thickness of the inorganic film between the evaporation layer 15 and the metal layer 13 in the easy-to-bend region 200 and the difficult-to-bend region 100 is 0.2um, the thickness of the organic film between the evaporation layer 15 and the metal layer 13 in the difficult-to-bend region 100 is 3um, the thickness of the evaporation layer 15 is 0.3um, the thickness of the first inorganic encapsulation layer 161 is 0.8um, the thickness of the organic encapsulation layer 162 is 4um, the thickness of second inorganic encapsulation layer 163 is 0.2um, through the material of selecting each rete, makes the modulus of base plate 11 is 8800MPa, the modulus of buffer layer 12 is 150000MPa, the modulus of metal level 13 is 72000MPa, in easy bending region 200 and difficult bending region 100 the modulus of the inorganic membrane between evaporation layer 15 and metal level 13 is 150000MPa, the modulus of the organic membrane between evaporation layer 15 and the metal level 13 of difficult bending region 100 is 4000MPa, the modulus of evaporation layer 15 is 10MPa, the modulus of first inorganic encapsulation layer 161 is 150000MPa, the modulus of organic encapsulation layer 162 is 3000MPa, the modulus of second inorganic encapsulation layer 163 is 150000 MPa.
Corresponding to the foldable screen disclosed in the above-mentioned embodiment of the present invention, the present invention further discloses a display device 300, referring to fig. 12, fig. 12 is a schematic structural diagram of a display device disclosed in the above-mentioned embodiment of the present invention, and the display device 300 is applied with the foldable screen described in any one of the above-mentioned embodiments of the present invention. The display device can be a display device with a display panel, such as a mobile phone, a tablet computer, a notebook computer, a television and the like.
The display device adopts the foldable screen, so that the service life of the display device with the foldable screen is prolonged.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A foldable screen, wherein a bending region of the foldable screen comprises:
a hard-to-bend region and a easy-to-bend region;
the total thickness of the inorganic film in the easily bent area is less than that of the inorganic film in the difficultly bent area;
the total thickness of the organic films in the easy-bending area is higher than that of the organic films in the hard-bending area;
the evaporation coating layer and the metal layer of the easy-bending area are filled through an organic film;
the evaporation layer and the metal layer of the region difficult to bend are filled with an organic film;
an inorganic film between the evaporation coating and the organic film or an inorganic film between the metal layer and the organic film is filled between the evaporation coating and the metal layer of the easy-bending area;
the thickness of the inorganic film between the evaporation coating and the metal layer of the flexible area is smaller than that between the metal layer of the hard bending area and the substrate, and the distance between the evaporation coating and the metal layer of the flexible area is smaller than that between the evaporation coating and the metal layer of the hard bending area.
2. A foldable screen according to claim 1,
the metal layer of the flexible area and the substrate are filled with an organic film;
and the metal layer of the region difficult to bend and the substrate are filled with an inorganic film.
3. A foldable screen according to claim 2,
an inorganic film positioned between the substrate and the organic film or an inorganic film positioned between the organic film and the metal layer is also filled between the metal layer of the flexible area and the substrate;
the thickness of the inorganic film between the metal layer of the easy bending area and the substrate is less than that between the metal layer of the hard bending area and the substrate.
4. The foldable screen of claim 1, wherein the evaporated layer and the metal layer of the pliable region are filled with an inorganic film;
the evaporation coating layer and the metal layer of the region difficult to bend are filled with an organic film and an inorganic film;
and the thickness of the inorganic film between the evaporation coating layer and the metal layer of the easy-bending area is not more than that between the evaporation coating layer and the metal layer of the hard-bending area.
5. The foldable screen of claim 1, comprising a plurality of hard-to-bend regions and a plurality of pliable regions within the foldable screen, the plurality of hard-to-bend regions and the plurality of pliable regions alternating.
6. A foldable screen according to claim 1, wherein at least the scanning circuitry of the foldable screen is provided in the hard-to-bend region.
7. A display device, characterized in that a foldable screen according to any one of claims 1-6 is applied.
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| CN109584725B (en) * | 2019-01-02 | 2021-10-01 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN109686867A (en) * | 2019-01-30 | 2019-04-26 | 武汉天马微电子有限公司 | Display panel and display device |
| CN110444679B (en) * | 2019-06-27 | 2021-12-07 | 昆山国显光电有限公司 | Display panel and display device |
| CN110459562B (en) * | 2019-07-30 | 2021-11-23 | 武汉华星光电半导体显示技术有限公司 | Foldable display panel and manufacturing method thereof |
| US11915623B2 (en) | 2020-06-09 | 2024-02-27 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Flexible display panel, manufacturing method thereof, and flexible display device |
| CN111724680B (en) * | 2020-06-09 | 2022-02-01 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel, preparation method thereof and flexible display device |
| CN112531130B (en) * | 2020-12-02 | 2022-10-21 | 合肥维信诺科技有限公司 | Display panel and display device |
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| CN106601133A (en) * | 2017-02-28 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible display panel, making method thereof and display device |
| CN106652802A (en) * | 2017-02-27 | 2017-05-10 | 上海天马微电子有限公司 | Foldable display device |
| CN107331795A (en) * | 2017-08-22 | 2017-11-07 | 京东方科技集团股份有限公司 | A kind of packaging film, flexible display device and flexible terminal |
| JP2018109722A (en) * | 2017-01-06 | 2018-07-12 | 株式会社ジャパンディスプレイ | Display device |
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| JP2016218109A (en) * | 2015-05-14 | 2016-12-22 | 株式会社ジャパンディスプレイ | Display device and method of manufacturing the same |
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| CN106652802A (en) * | 2017-02-27 | 2017-05-10 | 上海天马微电子有限公司 | Foldable display device |
| CN106601133A (en) * | 2017-02-28 | 2017-04-26 | 京东方科技集团股份有限公司 | Flexible display panel, making method thereof and display device |
| CN107331795A (en) * | 2017-08-22 | 2017-11-07 | 京东方科技集团股份有限公司 | A kind of packaging film, flexible display device and flexible terminal |
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