WO2020124482A1

WO2020124482A1 - Display apparatus and manufacturing method therefor, and display terminal and manufacturing method therefor

Info

Publication number: WO2020124482A1
Application number: PCT/CN2018/122349
Authority: WO
Inventors: 许志高; 洪定洋; 李艺宾
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-06-25
Also published as: CN112639934A

Abstract

Disclosed in the present application is a display apparatus, which is characterized in comprising: a first protective layer; a flexible display panel, which is attached to the first protective layer; and a touch control layer, which is provided at a side of the first protective layer that faces away from the flexible display panel. By means of changing the stacking structure of each layer of a device, the problem in which a touch control effect is poor due to an air layer may be solved, thus effectively improving the experience of touch control.

Description

Display device and preparation method thereof, display terminal and preparation method thereof

Technical field

The embodiments of the present application relate to the technical field of display devices, and in particular, to a display device and a manufacturing method thereof, a display terminal and a manufacturing method thereof.

Background technique

Organic Light-Emitting Diode (OLED) display technology has the characteristics of active light emission, low voltage drive, high brightness, and full color. With many advantages, OLED display technology is widely used in mobile phones, computers, TVs and other fields.

In general, OLED display panels can still have a good display effect under a certain bending radius, so OLED has a wide application prospect in the field of flexible display. When the OLED display device is used for a touch device, a display panel with a touch function is attached to the device casing, and then a protective layer with a fixed curvature is covered on the display panel.

However, when the current OLED display device is used in a touch device, an air layer is formed between the display panel with a touch function and the protective layer, resulting in a poor touch effect.

Summary of the invention

Embodiments of the present application provide a display device, a method of manufacturing the same, a display terminal, and a method of manufacturing the same, which can solve the problem of poor touch effect due to the air layer and effectively improve the touch experience.

The embodiments of the present application solve the technical problems and provide the following technical solutions:

A display device, including:

First protective layer

A flexible display panel, which is provided in close contact with the first protective layer;

The touch control layer is disposed on a side of the first protective layer facing away from the flexible display panel.

A preparation method of a display device includes:

Attaching the flexible display panel to the first protective layer, the curvature of the first protective layer is fixed;

Fixing the touch control layer on the surface of the first protective layer facing away from the flexible display panel;

The surface of the first protective layer facing away from the flexible display panel is bonded to form the display device.

A display terminal includes: a terminal housing and a display device; wherein, the display device includes:

First protective layer

The touch layer is provided on the side of the first protective layer facing away from the flexible display panel;

The terminal housing is provided on a side of the flexible display panel facing away from the first protective layer.

A preparation method of a display terminal, including:

Affixing the touch layer to the surface of the first protective layer facing away from the flexible display panel;

The surface of the flexible display panel facing away from the first protective layer is attached to the terminal case.

Attach the flexible display panel to the terminal housing;

The first protective layer is attached to the surface of the flexible display panel facing away from the terminal housing, and the curvature of the first protective layer is fixed;

The surface of the touch protection layer and the first protective layer facing away from the flexible display panel are attached.

Compared with the prior art, in the display device provided by the embodiment of the present application, by changing the stacking structure of the devices of each layer, the air layer formed between the first protective layer and the flexible display panel is located under the touch layer, so that The touch layer can directly receive touch control, avoiding the malfunction of touch caused by the formation of an air layer between the touch layer and the protective layer, and can solve the problem of poor touch effect caused by the air layer, effectively improving the touch experience.

BRIEF DESCRIPTION

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required in the embodiments of the present application will be briefly described below. Obviously, the drawings described below are only some embodiments of the present application. For a person of ordinary skill in the art, without paying any creative labor, other drawings can be obtained based on these drawings.

FIG. 1a is a schematic structural diagram of one of the display devices provided by an embodiment of the present application;

FIG. 1b is a schematic structural diagram of another display device provided by an embodiment of the present application;

2 is a schematic structural diagram of a display terminal provided by an embodiment of this application;

FIG. 3a is a schematic flowchart of a method for manufacturing the display device of FIG. 1a provided by an embodiment of the present application;

FIG. 3b is a schematic flowchart of the method for manufacturing the display device of FIG. 1b provided by an embodiment of the present application;

FIG. 3c is a schematic flowchart of the method for manufacturing the display device of FIG. 1b provided by an embodiment of the present application;

4a is a schematic diagram of the preparation method of FIG. 3a at different stages of preparation;

4b is a schematic diagram of the preparation method of FIG. 3b at different stages of preparation;

5 is a schematic flowchart of one of the preparation methods of the display terminal provided by the embodiment of the present application;

6 is a schematic flowchart of another method for manufacturing a display terminal provided by an embodiment of the present application;

7 is a schematic diagram of the preparation method shown in FIG. 6 at different stages of preparation.

detailed description

In order to facilitate understanding of the present application, the present application will be described in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "fixed" to another element, it may be directly on the other element, or there may be one or more centered elements in between. When an element is expressed as "connecting" another element, it may be directly connected to the other element, or one or more centered elements may be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer", and similar expressions used in this specification are for illustrative purposes only, and only express the substantial positional relationship, For example, for "vertical", if a certain positional relationship is not strictly vertical because of achieving a certain purpose, but is substantially vertical, or utilizes the vertical characteristics, it belongs to the "vertical" category described in this specification.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present application. The terminology used in the description of this application is for the purpose of describing specific embodiments only, and is not intended to limit this application. The term "and/or" used in this specification includes any and all combinations of one or more related listed items.

It can be understood that, as shown in this document, the one or more interlayer substances involved in the embodiments of the present application, the positional relationship between the layers uses such terms as “lamination” or “formation” or “application” or “arrangement” To express ", those skilled in the art can understand that any term such as "lamination" or "formation" or "application" can cover all the methods, types and techniques of "lamination". For example, sputtering, electroplating, molding, chemical vapor deposition (Chemical Vapor Deposition, CVD), physical vapor deposition (Physical Vapor Deposition, PVD), evaporation, hybrid physical-chemical vapor deposition (Hybrid Physical-Chemical Vapor Deposition, HPCVD) , Plasma enhanced chemical vapor deposition (Plasma Enhanced Chemical Vapor Deposition (PECVD), low pressure chemical vapor deposition (Low Pressure Pressure Chemical Vapor Deposition (LPCVD), etc.

In addition, the technical features involved in different embodiments of the present application described below can be combined as long as they do not conflict with each other.

Generally, when an OLED display device is used in a touch device, a display panel with a touch function is often used, the display panel is attached to the device casing, and then a protective layer with a fixed curvature is covered on the display panel. At this time, an air layer is formed between the protective layer and the display panel. When the user uses touch control, the air layer is likely to cause touch errors. For example, when performing a click operation, the device does not receive click information due to the presence of the air layer. As a result, the device's touch function is poor.

Based on this, the embodiments of the present application provide a display device, a manufacturing method thereof, a display terminal, and a manufacturing method thereof, which can solve the problem of poor touch effect due to the presence of an air layer and effectively improve the touch experience.

Referring to FIG. 1a, one of the display devices 10 provided by the embodiment of the present application includes: a first protective layer 11, a flexible display panel 12, and a touch layer 13.

The first protective layer 11 with a fixed curvature is attached to the flexible display panel 12, and the touch layer 13 is disposed on the side of the first protective layer 11 facing away from the flexible display panel 12. Among them, since the curvature of the first protective layer 11 is fixed, an air layer 101 is formed between the first protective layer 11 and the flexible display panel 12.

The first protective layer 11 may be made of materials such as polymethyl methacrylate, polycarbonate, or organic glass. In this embodiment, the first protective layer 11 is made of a material with sufficient supporting force and hardness, and the curvature of the first protective layer 11 is fixed.

The flexible display panel 12 is an organic light emitting diode (OLED) display panel. OLED display panel has many advantages such as self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, near 180° viewing angle and wide temperature range, and can realize many advantages such as flexible display and large-area full-color display. .

Among them, the flexible display panel 12 may include a flexible substrate unit, a thin film transistor device unit, an organic light emitting unit, and the like.

The flexible base unit is a flexible substrate such as a thin glass, a metal foil or a plastic base, etc. having a flexible material, for example, the plastic base has a flexible structure including coating on both sides of a base film, the base film includes such as Polyimide (PI), polycarbonate (PC), polyethylene glycol terephthalate (PET), polyethersulfone (PES), polyethylene film (PEN), fiber reinforced plastic (FRP) and other resins . It can be understood that, in some other embodiments, in order to reduce the thickness of the display device 10, the flexible base unit 121 may be omitted.

The thin film transistor device unit includes several thin film transistors (Thin Film Transistor, TFT), for example, may include low temperature polycrystalline silicon thin film transistors (Low Temperature Poly-Si Thin Film Transistor, LTP-Si TFT), amorphous silicon TFT, polysilicon TFT, oxide semiconductor TFT, or organic TFT, etc. The thin film transistor device unit is used to realize display control and control the organic light emitting unit electroluminescence. Among them, the thin film transistor device unit may be provided between the flexible substrate unit and the organic light emitting unit, or the thin film transistor device unit may also be provided within the organic light emitting unit, which can be selected according to actual usage.

The organic light emitting unit may include an organic light emitting material. In some embodiments, the organic light-emitting material may include a material that emits red light, green light, or blue light, and a fluorescent material or a phosphorescent material. In some embodiments, the organic light emitting unit may include two or more light emitting materials. The organic light emitting unit is used to emit light, and electroluminescence is performed under the control of the thin film transistor device unit to perform display. Among them, the color of light emission can be white light, and can also be a color composed of any color ratio.

In this embodiment, the thin-film crystal optical device unit is provided between the flexible substrate unit and the organic light-emitting unit, and the side of the organic light-emitting unit facing away from the thin-film crystal optical device unit is bonded to the first protective layer 11 and the flexible substrate The side of the unit facing away from the thin-film crystal optical device unit is used for fixing with the device housing.

It should be noted that, in this embodiment, the flexible display panel 12 does not have a touch function.

The touch control layer 13 is an element for realizing the touch control function, and may include, for example, transparent indium tin oxide (ITO) obtained by a thin film process. The touch layer 13 may be a resistive touch layer or a capacitive touch layer. In this embodiment, the touch layer 13 is flexible, so that the touch layer 13 is easily attached to the first protective layer 11.

In the embodiment of the present application, by changing the stacking structure of the devices of each layer, the air layer 101 formed between the first protective layer 11 and the flexible display panel 12 is located under the touch layer 13, so that the touch layer 13 can directly Accept touch control to avoid the failure of touch due to the formation of an air layer between the touch layer and the protective layer, which can solve the problem of poor touch effect due to the air layer and effectively improve the touch experience.

In some embodiments, please refer to FIG. 1 b, the display device 10 may further include: a second protective layer 14 disposed on the side of the touch layer 13 facing away from the first protective layer 11.

The second protective layer 14 may be made of polymethyl methacrylate, polycarbonate, polyethylene terephthalate, or other materials. In this embodiment, the curvature of the second protective layer 14 is variable. The second protective layer 14 can be bonded to the touch layer 13 first, and then bent, which can improve the bonding of the second protective layer 14 and the touch layer 13合结果。 The effect. The second protective layer 14 is disposed on the side of the touch layer 13 facing away from the first protective layer 11. The second protective layer 14 is used to protect the touch layer 13 and increase the strength of the display device 10. Among them, the second protective layer 14 may be provided on the touch layer 13 by coating, bonding or the like.

In this embodiment, the bonding between the second protective layer 14 and the touch layer 13 is a close bonding, and the specific implementation manner may be: bonding the second protective layer 14 and the touch layer 13 on a plane In order to prevent the air layer from appearing between the second protective layer 14 and the touch layer 13, the second protective layer 14 and the touch layer 13 are closely attached.

In this embodiment, the second protective layer 14 at least completely covers the touch layer 13, for example, the area of the second protective layer 14 is larger than the area of the touch layer 13, so that the second protective layer 14 completely covers the touch layer 13.

In this embodiment, the second protective layer 14 is added to protect the touch layer 13, and the balance of the rebound force between the film layers of the display device is increased, and the drop resistance of the display device is also improved.

In some embodiments, please refer to FIG. 1 b again, the display device 10 may further include: a polarizing layer 15. The polarizing layer 15 is used to improve the display quality. The polarizing layer 15 is provided between the first protective layer 11 and the flexible display panel 12, and the air layer 101 is formed between the polarizing layer 15 and the first protective layer 11. In this embodiment, the polarizing layer 15 is provided between the first protective layer 11 and the flexible display panel 12. The specific implementation manner may be: bonding the polarizing layer 15 and the first protective layer 11, and then attaching the flexible display panel 12 The polarizing layer 15 is bonded to the polarizing layer 15; alternatively, the polarizing layer 15 is bonded to the flexible display panel 12, and then the polarizing layer 15 and the flexible display panel 12 are bonded to the first protective layer 11.

Among them, the polarizing layer 15 can be made of a polymer material, for example, polyvinyl alcohol, which has the advantages of good alignment, high mechanical strength, easy extension, high transmittance, low chargeability, and good dyeability. . Of course, the polarizing layer 15 may also use other polymer materials suitable as polarizing materials.

In some embodiments, the display device 10 may further include: a flexible circuit board. The flexible display panel 12 and the touch layer 13 may be electrically connected to the flexible circuit board, respectively, so as to be connected to the central system through the flexible circuit board.

In some embodiments, the display device 10 may further include: an adhesive layer. The adhesive layer may be optically (Optically Clear, Adhesive, OCA) used for bonding between the various device layers. The adhesive layer may be provided between the first protective layer 11 and the flexible display panel 12, between the second protective layer 14 and the touch layer 13, and between the touch layer 13 and the first protective layer 11, so that the first protection The layer 11 and the flexible display panel 12, the second protective layer 14 and the touch layer 13, and the touch layer 13 and the first protective layer 11 are bonded together.

In some embodiments, the display device 10 is not only bendable, but also transparent. For example, the material of the display device 10 is a flexible transparent element, and the flexible base unit in the flexible display panel 12 is composed of a polymer such as transparent plastic. The thin film transistor device unit in the flexible display panel 12 uses a transparent transistor, the organic light emitting unit in the flexible display panel 12 uses a transparent material, and the touch layer 13 uses a transparent transistor. Therefore, the display device 10 can become flexible and transparent. Among them, the transparent transistor is a TFT transistor made of opaque silicon by replacing the TFT transistor made of a transparent substance such as zinc oxide or titanium dioxide with the related art. In addition, the transparent electrode may be composed of materials such as indium tin oxide (ITO) or graphene. Graphene has a honeycomb lattice structure composed of carbon atoms, and has transparency. In addition, the transparent organic light-emitting layer can be realized by using suitable materials according to actual needs.

In the embodiment of the present application, by changing the stacking structure of the devices of each layer, the air layer 101 formed between the first protective layer 11 and the flexible display panel 12 is located under the touch layer 13, so that the touch layer 13 can directly Accept touch control to avoid touch failure due to the formation of an air layer between the touch layer and the protective layer, can solve the problem of poor touch effect due to the air layer, effectively improve the touch experience, and, by adding a second protection The layer 14 protects the touch layer 13 and increases the balance of the resilience between the film layers of the display device and also improves the drop resistance of the display device.

Referring to FIG. 2, the display terminal 100 provided by the embodiment of the present application includes: a display device 10 and a terminal housing 20.

The display device 10 may be the display device 10 shown in FIG. 1a or FIG. 1b, and the display device 10 shown in FIG. 1b is taken as an example in FIG. 2.

The terminal housing 20 may be a housing of a terminal device, where the terminal device exists in various forms, including but not limited to: smartphones, functional phones, tablet computers, audio, video players, handheld game consoles, e-books, etc. Wait.

Among them, the curvature of the terminal housing 20 is fixed, and the terminal housing 20 has a certain curvature, so that the display device 10 is provided on the terminal housing 20 to increase the display screen.

The terminal housing 20 is disposed on the side of the flexible display panel 12 facing away from the first protective layer 11 and fixedly attached to the flexible display panel 12.

In the embodiment of the present application, by providing a display device 10 with a good touch effect on the terminal housing 20, the touch layer can directly receive touch control, avoiding the formation of an air layer between the touch layer and the protective layer Touch failure, can solve the problem of poor touch effect caused by the air layer, and effectively improve the touch experience.

Referring to FIG. 3a, a method for manufacturing the display device 10 of FIG. 1a provided by an embodiment of the present application includes:

320. Attach the flexible display panel 12 to the first protective layer 11, the curvature of the first protective layer 11 is fixed;

340. Fix the touch layer 13 on the surface of the first protective layer 11 facing away from the flexible display panel 12;

350. The touch layer 13 is bonded to the surface of the first protective layer 11 facing away from the flexible display panel 12 to form the display device 10.

Please refer to FIG. 4a together. In step 320, the first protective layer 11 and the flexible display panel 12 may be formed or not prepared. If the first protective layer 11 is prepared and formed, it may be The flexible display panel 12 is formed on the first protective layer 11 to realize the bonding of the flexible display panel 12 to the first protective layer 11. In this embodiment, both the first protective layer 11 and the flexible display panel 12 are prepared and formed, and the flexible display panel 12 and the first protective layer 11 may be bonded by optical adhesive (Optically Clear, Adhesive, OCA). After the flexible display panel 12 and the first protective layer 11 are bonded together, an air layer 101 is formed between the flexible display panel 12 and the first protective layer 11.

Wherein, in step 350, since the touch layer 13 is flexible, after the touch layer 13 is fixed to the surface of the first protective layer 11 facing away from the flexible display panel 12, the touch layer 13 is bent flexibly to protect the first layer The layer 12 is bonded, and the bonding of the touch layer 13 and the surface of the first protective layer 11 facing away from the flexible display panel 12 is completely bonded.

Optionally, before step 320, please refer to FIG. 3a again. The method further includes: 310. Provide a first protective layer 11 with a fixed curvature. In step 310, the first protective layer 11 may be made of materials such as polymethyl methacrylate, polycarbonate, or organic glass. The first protective layer 11 has a certain degree of curvature, and the curvature of the first protective layer 11 is fixed. When the flexible display panel 12 is attached to the first protective layer 11, the flexible display panel 12 is attached to the curved inner side of the first protective layer 11.

Optionally, when the display device 10 includes the second protective layer 14, please refer to FIG. 3b and FIG. 4b together, the method further includes:

330. Cover the second protective layer 14 on the side of the touch layer 13 facing away from the first protective layer, and bond the second protective layer 14 to the touch layer 13.

In step 330, the area of the second protective layer 14 is greater than or equal to the area of the touch layer 13, when the second protective layer 14 covers the touch layer 13, the second protective layer 14 completely covers the touch layer 13 at least ， Thereby protecting the touch layer 13. The curvatures of the second protective layer 14 and the touch layer 13 are both variable. The bonding of the second protective layer 14 and the touch layer 13 is specifically: the second protective layer 14 and the touch layer 13 are on a plane The close adhesion is performed so that the second protective layer 14 and the touch layer 13 are completely attached, and no air layer occurs.

In step 340, the touch layer 13 is fixed to the surface of the first protective layer 11 facing away from the flexible display panel 12, specifically: the touch layer 13 with the second protective layer 14 attached thereto is fixed to the first protective layer 11. The second protective layer 14 and the touch layer 13 are fixed to the first protective layer 11 in a straight state, and the side of the touch layer 13 facing away from the second protective layer 14 is fixed to the back of the first protective layer 11 To the surface of the flexible display panel 12, the touch layer 13 is located above the air layer 101.

Optionally, when the display device 10 includes the polarizing layer 15, as shown in FIG. 3c, the difference from the above-described manufacturing method is that step 320 specifically includes: 321, bonding the flexible display panel 12 to the polarizing layer 15; 322. The surface of the polarizing layer 15 facing away from the flexible display panel 12 is attached to the first protective layer 11. Among them, an air layer 101 is formed between the polarizing layer 15 and the first protective layer 11.

In the embodiment of the present application, by changing the stacking structure of the devices of each layer, the air layer 101 formed between the first protective layer 11 and the flexible display panel 12 is located under the touch layer 13, so that the touch layer 13 can directly Accept touch control to avoid touch failure due to the formation of an air layer between the touch layer and the protective layer, which can solve the problem of poor touch effect due to the air layer and effectively improve the touch experience.

Referring to FIG. 5, one of the preparation methods of the display terminal 100 provided by the embodiment of the present application includes:

420. The flexible display panel 12 is attached to the first protective layer 11, and the curvature of the first protective layer 11 is fixed;

440. Fix the touch layer 13 on the surface of the first protective layer 11 facing away from the flexible display panel 12;

450. Attach the touch layer 13 to the surface of the first protective layer 11 facing away from the flexible display panel 12;

460. Attach the surface of the flexible display panel 12 facing away from the first protective layer 11 to the terminal housing 20.

Optionally, before step 420, the method further includes: 410. Provide a first protective layer 11 with a fixed curvature.

Optionally, when the display device 10 includes the second protective layer 14, the method further includes:

430. Cover the second protective layer 14 on the side of the touch layer 13 facing away from the first protective layer, and bond the second protective layer 14 to the touch layer 13.

Among them, steps 410-460 are the same as steps 310-340 in the manufacturing method of the display device 10. In step 460, after the display device 10 is prepared, the display device 10 and the terminal housing 20 are bonded together, thereby preparing the display terminal 100.

In the embodiment of the present application, the display terminal 100 is prepared by providing the display device 10 with a good touch effect on the terminal housing 20, which can enable the touch layer to directly receive touch control, avoiding the damage caused by the touch layer and the protective layer. The formation of an air layer between them leads to touch failure, which can solve the problem of poor touch effect caused by the air layer and effectively improve the touch experience.

Referring to FIG. 6, another preparation method of the display terminal 100 provided by the embodiment of the present application includes:

510. Attach the flexible display panel 12 to the terminal housing 20;

530. Attach the first protective layer 11 to the surface of the flexible display panel 12 facing away from the terminal housing 20;

550. Fix the touch layer 13 on the surface of the first protective layer 11 facing away from the flexible display panel 12;

560. The touch layer 13 and the first protective layer 11 are bonded to the surface of the flexible display panel 12.

Please refer to FIG. 7 together. In step 510, the terminal housing 20 has a certain curvature and a fixed curvature, and the flexible display panel 12 is attached to the curved outer side of the terminal housing 20.

Optionally, the method further includes: 520, providing a first protective layer 11 with a fixed curvature. In step 520, the first protective layer 11 may be made of materials such as polymethyl methacrylate, polycarbonate, or organic glass. The first protective layer 11 may have a certain degree of curvature, and the curvature of the first protective layer 11 is fixed. When the flexible display panel 12 is attached to the first protective layer 11, the flexible display panel 12 is attached to the curved inner side of the first protective layer 11.

Wherein, in step 530, the curvature of the first protective layer 11 is matched with the curvature of the terminal housing 20, so that the first protective layer 11 can just fit on the flexible display panel 11 attached on the terminal housing 20. Among them, an air layer 101 is formed between the flexible display panel 12 and the first protective layer 11.

Wherein, in step 560, since the touch layer 13 is flexible, after the touch layer 13 is fixed to the surface of the first protective layer 11 facing away from the flexible display panel 12, the touch layer 13 is bent flexibly to protect the first layer The layer 12 is bonded, and the bonding of the touch layer 13 and the surface of the first protective layer 11 facing away from the flexible display panel 12 is completely bonded, thereby preparing the display terminal 100.

Optionally, before step 550, please refer to FIGS. 6 and 7 again. The method further includes:

540. Cover the side of the touch layer 13 facing away from the first protective layer 11 with the second protective layer 14, and attach the second protective layer 14 to the touch layer 13.

In step 540, the area of the second protective layer 14 is greater than or equal to the area of the touch layer 13, when the second protective layer 14 covers the touch layer 13, the second protective layer 14 at least completely covers the touch layer 13, thereby protecting the touch layer 13. The curvatures of the second protective layer 14 and the touch layer 13 are both variable. The bonding of the second protective layer 14 and the touch layer 13 is specifically: the second protective layer 14 and the touch layer 13 are on a plane The close adhesion is carried out, so that the second protective layer 14 and the touch layer 13 are completely attached without an air layer.

Wherein, in step 550, the second protective layer 14 and the touch layer 13 are fixed to the first protective layer 11 in a straight state, and are fixed by the side of the touch layer 13 facing away from the second protective layer 14 The first protective layer 11 faces away from the surface of the flexible display panel 12 so that the touch layer 13 is located above the air layer 101.

In the embodiment of the present application, the display terminal 100 is prepared by providing a display device 10 with a good touch effect on the terminal housing 20, which can enable the touch layer to directly receive touch control, avoiding the damage caused by the touch layer and the protective layer The formation of an air layer between them leads to touch failure, which can solve the problem of poor touch effect caused by the air layer and effectively improve the touch experience.

Those skilled in the art can understand that the processes and materials described in the embodiments in this specification are only exemplary, and any processes or materials suitable for the application developed in the future may be used in the embodiments of the application.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments may also be combined, The steps can be implemented in any order, and there are many other variations of the different aspects of the present application as described above. For simplicity, they are not provided in the details; although the present application has been described in detail with reference to the foregoing embodiments, the ordinary The skilled person should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions in the implementation of this application. Examples of technical solutions.

Claims

A display device is characterized by comprising:

A first protective layer, the curvature of the first protective layer is fixed;

A flexible display panel, which is provided in close contact with the first protective layer;

The touch control layer is disposed on a side of the first protective layer facing away from the flexible display panel.
The display device according to claim 1, wherein the display device further comprises:

The second protective layer is disposed on the side of the touch layer facing away from the first protective layer.
The display device according to claim 2, wherein the second protective layer is closely attached to the touch layer.
The display device according to claim 2, wherein the second protective layer completely covers the touch layer.
The display device according to claim 1, wherein the flexible display panel includes a flexible substrate unit, a thin film transistor device unit, and an organic light emitting unit, and the thin film crystal optical device unit is provided on the flexible substrate unit and the Between organic light-emitting units.
The display device according to any one of claims 1 to 5, wherein an air layer is formed between the first protective layer and the flexible display panel.
The display device according to claim 6, wherein the display device further comprises: a polarizing layer;

The polarizing layer is provided between the first protective layer and the flexible display panel;

The air layer is formed between the polarizing layer and the first protective layer.
A preparation method of a display device, characterized in that it includes:

Attaching the flexible display panel to the first protective layer, the curvature of the first protective layer is fixed;

Fixing the touch control layer on the surface of the first protective layer facing away from the flexible display panel;

The surface of the first protective layer facing away from the flexible display panel is bonded to form the display device.
The method according to claim 8, wherein before the fixing the touch layer to the surface of the first protective layer facing away from the flexible display panel, the method further comprises:

Covering the side of the touch layer facing away from the first protective layer, and bonding the second protective layer to the touch layer.
The method according to claim 9, wherein the bonding the second protective layer to the touch layer comprises:

The second protective layer and the touch layer are closely adhered on a plane.
The method according to claim 8, wherein before the attaching the flexible display panel to the first protective layer, the method further comprises:

The first protective layer with a fixed curvature is provided.
The method according to any one of claims 8 to 11, wherein the attaching the flexible display panel to the first protective layer includes:

Laminating the flexible display panel and the polarizing layer;

The surface of the polarizing layer facing away from the flexible display panel is attached to the first protective layer.
A display terminal, characterized by comprising: a terminal housing and a display device; wherein, the display device comprises:

A first protective layer, the curvature of the first protective layer is fixed;

A flexible display panel, which is provided in close contact with the first protective layer;

The touch layer is provided on the side of the first protective layer facing away from the flexible display panel;

The terminal housing is provided on a side of the flexible display panel facing away from the first protective layer.
The display terminal according to claim 13, wherein the terminal further comprises:

The second protective layer is disposed on the side of the touch layer facing away from the first protective layer.
A preparation method of a display terminal, which is characterized by comprising:

Attaching the flexible display panel to the first protective layer, the curvature of the first protective layer is fixed;

Fixing the touch control layer on the surface of the first protective layer facing away from the flexible display panel;

Affixing the touch layer to the surface of the first protective layer facing away from the flexible display panel;

The surface of the flexible display panel facing away from the first protective layer is attached to the terminal case.
The method according to claim 15, wherein before the fixing the touch layer to the surface of the first protective layer facing away from the flexible display panel, the method further comprises:

Covering the side of the touch layer facing away from the first protective layer, and bonding the second protective layer to the touch layer.
A preparation method of a display terminal, which is characterized by comprising:

Attach the flexible display panel to the terminal housing;

The first protective layer is attached to the surface of the flexible display panel facing away from the terminal housing, and the curvature of the first protective layer is fixed;

Fixing the touch control layer on the surface of the first protective layer facing away from the flexible display panel;

The surface of the touch protection layer and the first protective layer facing away from the flexible display panel are attached.
The method according to claim 17, wherein before the fixing the touch layer to the surface of the first protective layer facing away from the flexible display panel, the method further comprises:

Covering the side of the touch layer facing away from the first protective layer, and bonding the second protective layer to the touch layer.