WO2021190098A1

WO2021190098A1 - Display screen and electronic device

Info

Publication number: WO2021190098A1
Application number: PCT/CN2021/071491
Authority: WO
Inventors: 宫经波
Original assignee: 维沃移动通信有限公司
Priority date: 2020-03-24
Filing date: 2021-01-13
Publication date: 2021-09-30
Also published as: CN111443768A

Abstract

A display screen and an electronic device, the display screen comprising a flexible display screen body (100), connecting glue (200) and a protective layer (300); the flexible display screen body (100) is connected to the protective layer (300) by means of the connecting glue (200), and the protective layer (300) covers the connecting glue (200); the flexible display screen body (100) comprises a first region, a second region, and a third region; the third region is located between the first region and the second region; the protective layer (300) is provided with at least two recessed portions (310) in correspondence with the third region, and the recessed portions (310) are arranged at intervals along the extension direction of the bending axis of the flexible display screen body (100).

Description

Display and electronic equipment

cross reference

The present invention claims the priority of a Chinese patent application filed with the Chinese Patent Office on March 24, 2020, the application number is 202010215947.X, and the invention title is "display screen and electronic equipment". The entire content of the application is incorporated into this by reference. Inventing.

Technical field

The embodiment of the present invention relates to the field of display technology, in particular to a display screen and an electronic device.

Background technique

As users’ demands for the use of electronic devices continue to increase, the screen sizes of electronic devices continue to expand. At the same time, the increase in screen size usually leads to an increase in the overall size of the electronic device, which brings about the problem of inconvenience to carry. Therefore, for the current structural design of electronic devices, a larger screen size and portability have become more prominent contradictions.

In order to meet users' demands for larger screen size and portability at the same time, foldable electronic devices have emerged. This kind of electronic device has a folded state and an unfolded state. When the electronic device is in the unfolded state, the display screen is flattened, and then a larger display area can be obtained; when the electronic device is in the folded state, the display screen is bent, and the whole of the electronic device The size is reduced, which makes it easy to carry.

The display screen of the above electronic device may include a flexible display screen body, a connecting glue and a protective layer, and the protective layer may be connected to the flexible display screen body through the connecting glue, thereby protecting the flexible display screen body. However, the strength of this protective layer is relatively weak, and its protective effect on the body of the flexible display screen is relatively limited, resulting in the display screen being easily damaged.

Summary of the invention

The embodiment of the invention discloses a display screen and an electronic device to solve the problem that the display screen is easily damaged.

In order to solve the above technical problems, the present invention is implemented as follows: In the first aspect, embodiments of the present invention provide a display screen, which includes a flexible display screen body, a connecting glue and a protective layer, and the flexible display screen body is connected through the connection glue and a protective layer. Glue is connected to the protective layer, and the protective layer covers the connecting glue;

The flexible display body includes a first area, a second area, and a third area, the third area is located between the first area and the second area, and the protective layer is provided corresponding to the third area There are at least two recessed portions, and each recessed portion is arranged at intervals along the extension direction of the bending axis of the flexible display screen body.

In a second aspect, an embodiment of the present invention provides an electronic device, including the above-mentioned display screen, the display screen further includes a circuit board, and the circuit board is connected to the flexible display screen body.

In the embodiment of the present invention, the protective layer of the display screen is provided with a recessed portion, which makes the portion of the protective layer corresponding to the bending area of the flexible display body more flexible, thereby ensuring the bending performance of the display screen. Therefore, the structural strength of the protective layer is less likely to be restricted by the bending performance of the display screen, so that the protective layer can more effectively protect the flexible display screen body, so that the display screen is not easily damaged.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present invention or the background art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the background art. Obviously, for those of ordinary skill in the art, Other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is a schematic structural diagram of a display screen disclosed in an embodiment of the present invention in a state;

2 is a partial structural diagram of the display screen disclosed in the embodiment of the present invention in another state;

Fig. 3 is a cross-sectional view at the dashed line in Fig. 2.

Description of reference signs:

100-flexible display body, 200-connecting glue, 300-protective layer, 310-recessed part, 320-first protection part, 330-second protection part, 340-third protection part, 400-circuit board, 500- Filled with glue.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

As shown in Figures 1 to 3, the embodiment of the present invention discloses a display screen, which has a flexible structure and can be bent, so that a larger display area can be obtained through a flattening operation, and at the same time through a bending operation Obtain a smaller storage size to meet the needs of users for larger screen sizes and portability. Optionally, the display screen can be applied to a foldable electronic device. When the electronic device is in the unfolded state, the display screen is flattened (that is, the state shown in Figure 2); when the electronic device is in the folded state, the display screen is bent (That is, the state shown in Figure 1).

In the embodiment of the present invention, the display screen may include a flexible display screen body 100, a connecting glue 200 and a protective layer 300. The flexible display screen body 100 can be used as the main structure of the display screen. The flexible display screen body 100 can be connected to the protective layer 300 through the connecting glue 200, so that the protective layer 300 and the flexible display screen body 100 are bonded together, and the protective layer 300 can be Cover the connecting glue 200 to protect the flexible display body 100. Optionally, the protective layer 300 may be provided with only one layer or multiple layers, which is not limited in the embodiment of the present invention. In addition, the connecting glue 200 here may be an optical glue, which has relatively excellent light transmittance, so that the connecting glue 200 can not only realize the connection between the flexible display body 100 and the protective layer 300, but also ensure the display screen Transparency.

In addition, the above-mentioned display screen may further include a circuit board 400 connected to the flexible display screen body 100, so that the flexible display screen body 100 can be driven to realize the display function of the display screen. Optionally, the circuit board 400 herein may be a flexible circuit board.

According to the above content, the flexible display screen body 100 may be bent, and it may specifically include a first area, a second area, and a third area, and the third area is located between the first area and the second area. Optionally, both the first area and the second area here may adopt a planar structure, and the third area may be a bent part of the flexible display screen body 100, which may be bent into an arc structure. The protective layer 300 may be provided with at least two recessed portions 310 corresponding to the third region, that is, a portion of the protective layer 300 corresponding to the third region is provided with recessed portions 310. The recesses 310 may be arranged at intervals. At this time, the part of the protective layer 300 between the adjacent recesses 310 is a solid part, and this part is connected to the part of the protective layer 300 corresponding to the first region and the second region. Therefore, the structural strength thereof can meet the requirements of protecting the flexible display screen body 100, and at the same time, the portion of the protective layer 300 corresponding to the third area can be made more flexible by the recess 310. Specifically, the recessed portions 310 may be arranged at intervals along the extension direction of the bending axis of the flexible display screen body 100. When the display screen is bent, the portion of the protective layer 300 between the adjacent recessed portions 310 will be Synchronous bending.

Optionally, the recessed portion 310 can be formed by means of numerical control machining, for example, the recessed portion 310 can be formed by a process such as milling. In addition, the shape and size of the recessed portion 310 can be flexibly selected, which is not limited in the embodiment of the present invention. .

In the above-mentioned display screen disclosed in the embodiment of the present invention, the protective layer 300 is provided with a recessed portion 310 that makes the portion of the protective layer 300 corresponding to the bending area (that is, the third area) of the flexible display body 100 better Therefore, the structural strength of the protective layer 300 is less likely to be restricted by the bending performance of the display, so that the protective layer 300 can more effectively protect the flexible display body 100, so that the display The screen is not easily damaged.

Optionally, when the display screen is flattened, in the direction perpendicular to the flexible display screen body 100, the projection of each recess 310 may be located in the projection of the third area, and at the same time, the protective layer 300 is provided with a portion of the recess 310 The projection can coincide with the projection of the third area, so that each recess 310 can cover the third area as much as possible, thereby making the display screen easier to bend. Further, when the display screen is in an unfolded state, the orthographic projection contour line of the recess 310 along the direction perpendicular to the flexible display screen body 100 and the orthographic projection contour line of the third area along the direction perpendicular to the flexible display screen body 100 Partially coincide. The direction in which the first area extends to the second area is defined as the first direction. At this time, the size of the recess 310 in the first direction (specifically, the length of the recess 310) is substantially equal to the third area in the first direction. Therefore, the recess 310 can better cover the third area, so that the display screen is easier to bend, and at the same time, the structural strength of the protective layer 300 is not excessively weakened.

After the recess 310 is provided, the structural strength of the protective layer 300 will be reduced. Therefore, in order to ensure the bending performance of the display screen while increasing the structural strength of the protective layer 300 as much as possible, so as to better protect the flexible display screen body 100. The display screen may further include a filler 500 which is disposed in the recess 310. The filler 500 here can fill the inner space of the recess 310 and adhere to the protective layer 300, so that the structural strength of the portion where the recess 310 is provided in the protective layer 300 is higher. Optionally, the top surface of the filler 500 may be flush with the opening side of the recess 310, so that the filler 500 just fills the recess 310 without overflowing.

Optionally, the above-mentioned filler 500 may be formed by a glue filling process. Of course, the filler 500 may also be formed by other methods, which is not limited in the embodiment of the present invention. In addition, the specific type of the filling glue 500 can be flexibly selected, and it can be a glue that is flexible and does not affect the normal display of the display screen, which is not limited in the embodiment of the present invention. For example, the filler 500 may be an optical glue, which has relatively excellent light transmittance, so that the filler 500 can not only realize the filling function, but also ensure the light transmittance of the display screen. Further, the refractive index of the filler 500 may be equal to the refractive index of the protective layer 300, so that the appearance consistency of the display screen is better.

In an alternative embodiment, the protective layer 300 is a flexible glass protective layer. That is, the material of the protective layer 300 may be flexible glass, which has better flexibility, and at the same time has higher structural strength and impact resistance, so as to better protect the flexible display screen body 100. Further, the material of the protective layer 300 may be flexible strengthened glass, so that the protective effect of the protective layer 300 is better, for example, the strength of the protective layer 300 may be higher by means of chemical strengthening. In addition, the portion of the protective layer 300 where the recessed portion 310 is provided may be further polished, so that there are fewer cracks on the surface of the recessed portion 310, thereby further improving the structural strength of the protective layer 300. When the filling glue 500 is provided in the recess 310, the polishing treatment here can make the filling glue 500 adhere to the protective layer 300 more closely, thereby further improving the structural strength of the protective layer 300.

Optionally, the above-mentioned protective layer 300 may include a first protective portion 320, a third protective portion 340, and a second protective portion 330 connected in sequence. The first protective portion 320 is arranged corresponding to the first area, and the second protective portion 330 corresponds to the second The third protection portion 340 is provided corresponding to the third area, and the third protection portion 340 is provided with the aforementioned recess 310. With this structure, the first area, the second area, and the third area of the flexible display screen body 100 can be protected ideally, so that the display screen is less likely to be damaged. At the same time, the first protection part 320, the second protection part 330 and the third protection part 340 are connected as a whole, so that the structural strength of the protection layer 300 is higher, and the protection effect it brings is better.

The first protection part 320, the second protection part 330, and the third protection part 340 can adopt a split structure, that is, the three can be formed separately and then connected into a whole by means of bonding or the like, but in order to further increase the protection layer 300 Structural strength, the protective layer 300 can be manufactured by integral molding, so that the first protective portion 320, the third protective portion 340, and the second protective portion 330 are an integral structure, that is, the structure formed by connecting the three is an integral structure .

Optionally, the concave portion 310 may be a through hole. In this case, the concave portion 310 may penetrate the third protection portion 340, and one end of the concave portion 310 directly extends to the connecting glue 200. With this structure, the third protection part 340 has fewer physical parts, so that the third protection part 340 has better flexibility and is more conducive to the bending of the display screen. At the same time, when the display screen also includes the filler 500, the filler 500 can extend to the connecting glue 200, and it can be directly bonded with the connecting glue 200, or even integrated. The bonding strength of the two is high, making the entire display The structural strength of the screen is higher.

The thicknesses of the first protection part 320, the second protection part 330, and the third protection part 340 can be flexibly set. In order to simplify the forming process of the protection layer 300, the first protection part 320, the second protection part 330 and the third protection part The thickness of 340 can be equal. In an optional embodiment, the thickness of the first protection portion 320 may be 50um to 500um; and/or the thickness of the second protection portion 330 may be 50um to 500um; and/or the thickness of the third protection portion 340 may be 50um～500um. When the thickness of the first protection part 320, the second protection part 330 and the third protection part 340 adopts the numerical range described here, the structural strength and impact resistance of the protection layer 300 are better, and it has more ideal bending performance. Of course, the thicknesses of the first protection portion 320, the second protection portion 330, and the third protection portion 340 may also adopt other values, which are not limited in the embodiment of the present invention.

Based on the display screen described in any of the foregoing embodiments, an embodiment of the present invention also discloses an electronic device, which includes the display screen described in any of the foregoing embodiments, and the display screen may include the flexible display screen body 100 described above. , The connecting glue 200 and the protective layer 300 may also include a circuit board 400, which is connected to the flexible display body 100.

The electronic devices disclosed in the embodiments of the present invention may be devices such as smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), and electronic game consoles. The embodiments of the present invention do not limit the specific types of electronic devices.

The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the conciseness of the text, here is No longer.

The foregoing descriptions are merely embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

A display screen, comprising a flexible display screen body (100), a connecting glue (200) and a protective layer (300). The flexible display screen body (100) is connected to the protective layer (300) through the connecting glue (200). ) Is connected, and the protective layer (300) covers the connecting glue (200);

The flexible display body (100) includes a first area, a second area, and a third area. The third area is located between the first area and the second area, and the protective layer (300) corresponds to The third area is provided with at least two recessed portions (310), and each recessed portion (310) is arranged at intervals along the extension direction of the bending axis of the flexible display screen body (100).
The display screen according to claim 1, wherein, when the display screen is in an unfolded state, the concave portion (310) is along an orthographic projection contour line in a direction perpendicular to the flexible display screen body (100) It partially overlaps with the contour line of the orthographic projection of the third area along the direction perpendicular to the flexible display screen body (100).
The display screen according to claim 1, further comprising a filler (500), and the filler (500) is disposed in the recess (310).
The display screen according to claim 1, wherein the protective layer (300) is a flexible glass protective layer.
The display screen according to claim 1, wherein the protection layer (300) comprises a first protection part (320), a third protection part (340) and a second protection part (330) which are sequentially connected, and the A protection portion (320) is provided corresponding to the first area, the second protection portion (330) is provided corresponding to the second area, the third protection portion (340) is provided corresponding to the third area, and the The third protection part (340) is provided with the recessed part (310).
The display screen according to claim 5, wherein the first protection part (320), the third protection part (340) and the second protection part (330) are an integral structure.
The display screen according to claim 5, wherein the recessed portion (310) is a through hole, and the recessed portion (310) penetrates the third protection portion (340).
The display screen according to claim 7, wherein the thickness of the first protection part (320) is 50um-500um; and/or the thickness of the second protection part (330) is 50um-500um; and/ Or, the thickness of the third protection part (340) is 50um-500um.
The display screen according to claim 1, wherein the connecting glue (200) is an optical glue.
An electronic device, comprising the display screen according to any one of claims 1 to 9, the display screen further comprising a circuit board (400), the circuit board (400) is connected to the flexible display body (100) .