This application relates to the field of communications technologies, and in particular, to a flexible display panel and a mobile terminal.
With development of a flexible organic light-emitting diode (OLED) technology, curved displays gradually become a mainstream of mobile phone terminals. However, based on technical maturity and a manufacturing process of flexible OLEDs, there are some constraints and costs in application of curved mobile phone products.
However, a light transmittance in the prior art is low. A light transmittance of a polyimide (PI) base material in the flexible OLED is low, and is only 70% or lower. For imaging quality of a camera, the light transmittance is a key requirement, and it can be accepted only when the transmittance reaches about 85%. A current color of the PI base material of the flexible OLED is relatively yellow, and cannot meet the requirement of the imaging quality of the camera. In addition, when a curved display is fastened, an arched bending part of the curved display cannot be well supported.
This application provides a flexible display panel and a mobile terminal, to improve a use effect of the mobile terminal.
According to a first aspect, a flexible display panel is provided, where the flexible display panel is applied to a mobile terminal. The flexible display panel mainly includes a flexible glass substrate and a display module disposed on the flexible glass substrate. The flexible glass substrate is used as a support structure, and a first bending structure is disposed on each of two opposite edges of the flexible glass substrate. The flexible display panel forms an arc-shaped display panel when the display module is supported. In addition, the flexible display panel further includes an encapsulation layer, where the encapsulation layer encapsulates the display module on the flexible glass substrate. For the flexible display panel, the flexible glass substrate is used to carry the display module, thereby improving transparency of the entire flexible display panel. When a buried device is used in the mobile terminal, the flexible glass substrate is used to improve light transmission performance of the entire flexible display panel. In addition, no hole needs to be drilled on the flexible glass substrate, thereby improving a support effect of the entire flexible glass substrate.
To further enhance a light transmission effect, a through hole used for light transmission is correspondingly disposed on the display module. When the flexible display panel is disposed in the mobile terminal, the through hole is correspondingly disposed with the buried device, to further improve light transmission of the entire flexible display panel.
A structure of the display module may be different. For example, the display module includes a stacked anode, an emission layer, and a cathode. During specific disposition, the anode and the cathode are disposed opposite to each other, the emission layer is located in the middle, and the anode is disposed on the glass substrate. The encapsulation layer covers the cathode, and encapsulates the entire display module on the flexible glass substrate. Certainly, a structure of the display module is not limited to the foregoing several types, and may further include a hole injection layer, a hole transport layer, an electronic injection layer, and an electronic transport layer. When the foregoing several structures are used, holes are also correspondingly punched on the structures, to improve light transmission performance of the entire flexible display panel.
The encapsulation layer may be prepared by using different materials, for example, an organic film layer or an inorganic film layer, and both the organic film layer and the inorganic film layer have a good encapsulation effect.
When the flexible glass substrate is disposed, to ensure a flexible effect of the flexible glass substrate, a thickness of the flexible glass substrate is from 0.02 mm to 0.3 mm, for example, different thicknesses such as 0.02 mm, 0.05 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, and 0.3 mm. When the foregoing thickness is used, it can be ensured that the flexible glass substrate has specific support strength, and also has specific flexibility.
According to a second aspect, a mobile terminal is provided. The mobile terminal includes a support component and a flexible display panel disposed on the support component in a stacked manner. The support component is adhesively connected to the flexible display panel when being disposed in the stacked manner. The flexible display panel is the foregoing flexible display panel, and a flexible glass substrate of the flexible display panel has specific flexibility, so that bending can be implemented. Therefore, a first bending structure can be disposed on each of two opposite edges of the flexible display panel. When the support component is disposed, an arc-shaped support surface is disposed on each of two sides of the support component, and the first bending structures of the flexible display panel are covered on the support surfaces in a one-to-one correspondence. Flexibility of the flexible glass substrate enables the flexible display panel to be bent. In addition, the first bending structure of the flexible display panel may be fastened by using the arc-shaped support surface on the support component based on an adhesive relationship between the flexible display panel and the support component. In this way, a curved display is disposed. In addition, because the used flexible glass substrate has good light transmission, a use effect of a hidden device can be improved, and a use effect of the mobile terminal can be further improved.
There are different support components in the mobile terminal, and the following uses a specific example for description. In an embodiment, the support component is a transparent cover, and an arc-shaped second bending structure is disposed on each of two sides of the transparent cover, and an inner concave surface of each second bending structure is the foregoing support surface. During disposition, the inner concave surfaces of the second bending structures are oppositely disposed, and parts that are located in the two second bending structures are flat-plate structures, so that the entire transparent cover forms a “C” structure. The flexible display panel is disposed in an inner concave surface of the C-shaped structure, and forms a C-shaped bending structure by limiting from the transparent cover.
A thickness of the transparent cover may be disposed in different manners. In an embodiment, the transparent cover is a transparent cover with an equal thickness. In other words, thicknesses of the flat-plate structure and the second bending structures on the two sides are the same. In another implementation solution, the transparent cover is disposed in an unequal thickness manner. During disposing, the second bending structure of the transparent cover is a structure whose thickness gradually changes, and a thickness of the bending structure gradually increases in a direction in which a center of the flexible cover points to the bending structure. When the structure is used, a thickness of the flat-plate structure of the transparent cover is equal, and only the thickness of the second bending structure gradually changes. The second bending structure of the transparent cover is the structure whose thickness gradually changes, and the thickness of the bending structure gradually decreases in directions extending from a center line of the second bending structure to two sides. In this way, protection for the first bending structure at the edge of the flexible display panel is enhanced.
A material of the transparent cover should have relatively good light transmission performance. In an embodiment, the transparent cover is a glass cover or an acrylic cover.
When the flexible display panel is adhered to the transparent cover, the transparent cover is adhesively connected to the flexible display panel by using optical adhesive.
A shape of the transparent cover is not limited to the foregoing structure, and another structure form may be used. For example, a surface that is on the transparent cover and that faces away from the flexible display panel is a wave surface, so that different effects can be displayed. In addition, a surface that is of the transparent cover and that faces the transparent cover is a wave surface or a plane. When both a surface facing the transparent cover and a surface facing away from the flexible display panel are wave surfaces, wave crests and wave troughs of one of the wave surfaces respectively correspond to those of the other wave surface.
In addition, the support may be a middle frame, and an outer side surface of a side wall of the middle frame is the support surface. The outer side surface is an arc-shaped surface.
When the middle frame is connected to the support component, the middle frame is adhesively connected to the flexible display panel by using adhesive.
When the middle frame is used as the support component, the mobile terminal further includes a transparent cover covering the flexible display panel. For a structure of the transparent cover, refer to the foregoing structure of the transparent cover used as the support component.
To make the objectives, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings.
For ease of description, in the embodiments of this application, a mobile terminal is first described. The mobile terminal is a common mobile terminal such as a mobile phone, a tablet computer, or a notebook computer, or certainly may be an existing known mobile terminal.
To improve a use effect of the mobile terminal, in the embodiments of this application, a flexible display panel of the mobile terminal and a support component supporting the flexible display panel are mainly improved. However, it should be understood that the mobile terminal provided in this embodiment of this application is a complete mobile terminal, and also has a known structure of the mobile terminal. Only components related to improving a display effect of the mobile terminal in the mobile terminal are described herein, other components are not described in detail.
First, referring to
For the flexible glass substrate 11, one flexible glass substrate 11 may be used, or more flexible glass substrates 11 may be stacked, so that protection for the display module 12 can be improved while the flexibility of the flexible glass substrate 11 is ensured. In addition, when the flexible glass substrate 11 is used, light transmission performance of the flexible display panel 10 is greatly improved. When a hidden device 40 is used in the mobile terminal, a light irradiation effect on the hidden device 40, for example, a recessed camera, is improved, thereby improving a use effect of the entire mobile terminal.
In an embodiment of this application, the flexible glass substrate 11 includes another flexible material other than a PI material, and the another flexible material may be a glass matrix composite material. The glass matrix composite material is a composite material formed in a composite process by using a glass material as a matrix and using fibers such as ceramic, carbon, and metal, whiskers, and wafers as reinforcements, to improve toughness and strength of an original matrix material after being compounded. The matrix of the glass matrix composite material mainly includes borosilicate glass (600° C.), aluminosilicate glass (700° C.), and high-silica glass (1150° C.), and is applicable to different temperatures. Glass ceramic (microcrystalline glass) is sometimes classified into the composite material. Toughness of the glass matrix composite material is definitely improved compared with that of an original glass matrix. For example, strength of a short fiber reinforced glass is 50 MPa to 150 MPa, a breaking work is 600 J·m−2 to 800 J·m−2, and breaking toughness is 7 MPa·m1/2. Strength of a common glass is 100 MPa, a breaking work is 2 J·m1/2 to 4 J·m1/2, and breaking toughness is 0.5 J m1/2. It can be learned from the foregoing description that when the glass matrix composite material is used, the flexibility of the flexible glass substrate 11 can be further improved.
Still referring to
It should be understood that the structure of the display module 12 shown in
Different materials may be used for the encapsulation layer provided in this embodiment of this application. An inorganic film layer or an organic film layer may be used, and both the inorganic film layer and the organic film layer have a good encapsulation effect and good light transmission performance.
The flexible display panel 10 provided in this embodiment of this application is an arc-shaped display panel. For a specific structure of the flexible display panel 10, refer to the foregoing description of the flexible display panel 10. In addition, a first bending structure is disposed on each of two sides of the flexible display panel 10. When the first bending structure is disposed, the first bending structure is an arc-shaped bending structure. Referring to
The support component provided in this embodiment of this application is used as a support structure and a fastening structure that support the flexible display panel 10. The support component may be different devices, for example, a transparent cover 20 or a middle frame 30. The following separately uses the transparent cover and the middle frame as examples to describe a structure of the support component.
Still referring to
When the transparent cover 20 uses the structure shown in
In addition to that the second bending structure 21 may use different manner, for the structure of the transparent cover 20, the transparent cover 20 may use another different manner. As shown in
It can be learned from the foregoing descriptions of the support component and the flexible display panel 10 that, the support component provided in this embodiment of this application may support the flexible display panel 10 by using different structures. In addition to the middle frame 30 and the transparent cover 20, another component may be further used, for example, a support bracket is used to support the flexible display panel 10, and then is connected to the middle frame 30 of the mobile terminal.
In the mobile terminal provided in an embodiment of this application, the flexible display panel 10 can form a stable structure by using cooperation between the support component and the flexible display panel 10. Therefore, support for the flexible display panel 10 is improved, and light transmission of the flexible display panel 10 is improved when the flexible glass substrate is used. This facilitates a photographing effect of the hidden camera in the mobile terminal, and improves the use effect of the mobile terminal.
The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.
Number | Date | Country | Kind |
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201810433401.4 | May 2018 | CN | national |
This application is a national stage of International Application No. PCT/CN2018/097290, filed on Jul. 26, 2018, which claims priority to Chinese Patent Application No. 201810433401.4, filed on May 8, 2018. Both of the aforementioned applications are hereby incorporated by reference in their entireties.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2018/097290 | 7/26/2018 | WO | 00 |