WO2021057675A1

WO2021057675A1 - Display device and terminal device

Info

Publication number: WO2021057675A1
Application number: PCT/CN2020/116594
Authority: WO
Inventors: 杜鹏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-09-24
Filing date: 2020-09-21
Publication date: 2021-04-01
Also published as: CN110675749A

Abstract

A display device and a terminal device. The display device comprises a first display unit (100) and a second display unit (200). The first display unit (100) comprises a first display part (110) and a second display part (130). The first display part (110) and the second display part (130) can be bent along a first axis. The first axis is located between the first display part (110) and the second display part (130). The second display unit (200) comprises a third display part (210) and a fourth display part (230). The third display part (210) and the fourth display part (230) can be bent along a second axis. The second axis is located between the third display part (210) and the fourth display part (230). The rear surface of the second display part (130) is connected to the rear surface of the third display part (210), thus allowing the display device to implement dual-sided display at the positions of the second display part (130) and of the third display part (210), providing multiple selectable display modes, ensuring the portability of the display device, preventing the thickness of the display device from becoming excessively thick, and favoring the lightness and thinness of a bendable terminal device.

Description

Display device and terminal equipment

This application claims the priority of the Chinese patent application No. 201910904151.2 filed on September 24, 2019, and the contents of the above-mentioned Chinese patent application are quoted here in full as a part of this application.

Technical field

The present disclosure relates to the field of display technology, and in particular to a display device and terminal equipment.

Background technique

With the development and advancement of technology, flexible display devices have gradually begun to be applied to terminal devices. Due to their foldable characteristics, flexible display devices can have diversified application modes.

At present, the foldable display device mainly includes an in-folding display device and an out-folding display device. The in-folding display device is folded inward by installing a flexible screen on an inwardly foldable body, and the outward-folding display device is folded in by installing the flexible screen on the The fuselage can be folded outwards to achieve outward folding. Therefore, whether it is an in-folding display device or an out-folding display device, display can be realized only on one side of the display device.

It should be noted that the information disclosed in the background art section above is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art.

Summary of the invention

The purpose of the present disclosure is to provide a display device and a terminal device, thereby overcoming one or more problems caused by limitations and defects of related technologies to at least a certain extent.

According to an aspect of the present disclosure, there is provided a display device including:

The first display unit includes a first display portion and a second display portion, the first display portion and the second display portion can be bent along a first axis, and the first axis is located between the first display portion and the second display portion. Between the two display parts;

The second display unit includes a third display portion and a fourth display portion, the third display portion and the fourth display portion can be bent along a second axis, and the second axis is located between the third display portion and the fourth display portion. Among the four display parts, the back surface of the second display part and the back surface of the third display part are connected.

According to another aspect of the present disclosure, there is provided a terminal device including the above-mentioned display device.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

Description of the drawings

The drawings herein are incorporated into the specification and constitute a part of the specification, show embodiments conforming to the disclosure, and together with the specification are used to explain the principle of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a display device provided by an exemplary embodiment of the present disclosure.

FIG. 2 is a schematic structural diagram of another display device provided by an exemplary embodiment of the present disclosure.

FIG. 3 is a schematic diagram of an integrated first display unit and a second display unit provided by an exemplary embodiment of the present disclosure.

FIG. 4 is a schematic diagram of a split first display unit and a second display unit provided by an exemplary embodiment of the present disclosure.

FIG. 5 is a schematic structural diagram of an inner folding display device provided by an exemplary embodiment of the present disclosure.

FIG. 6 is a schematic structural diagram of an outer folding display device provided by an exemplary embodiment of the present disclosure.

In the picture:

100. First display unit; 110, first display portion; 120, second display portion; 200, second display unit; 210, third display portion; 230, fourth display portion; 300, first support frame; 400 , The second support frame; 500, the shaft.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that the present invention will be comprehensive and complete, and fully convey the concept of the example embodiments To those skilled in the art. The same reference numerals in the figures indicate the same or similar structures, and thus their detailed descriptions will be omitted.

Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship between one component of an icon and another component, these terms are used in this specification only for convenience, for example, according to the drawings. The direction of the example described. It can be understood that if the device of the icon is turned over and turned upside down, the component described as "upper" will become the "lower" component. When a structure is “on” another structure, it may mean that a certain structure is integrally formed on other structures, or that a certain structure is “directly” installed on other structures, or that a certain structure is “indirectly” installed on other structures through another structure. On other structures.

The terms "a", "a", "the", "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "including" and "have" are used to indicate open-ended The inclusive means and means that in addition to the listed elements/components/etc., there may be other elements/components/etc.; the terms "first", "second" and "third", etc. only Used as a mark, not a limit to the number of its objects.

This exemplary embodiment first provides a display device. As shown in FIG. 1, the display device includes a first display unit 100 and a second display unit 200, and the first display unit 100 includes a first display portion 110 and a second display portion. 130. The first display portion 110 and the second display portion 130 can be bent along a first axis, the first axis being located between the first display portion 110 and the second display portion 130; the second display unit 200 includes a third display portion 210 and The fourth display portion 230, the third display portion 210, and the fourth display portion 230 can be bent along a second axis, which is located between the third display portion 210 and the fourth display portion 230, and the back of the second display portion 130 and The back of the third display part 210 is connected.

Wherein, the first axis refers to the dividing line between the first display portion 110 and the second display portion 130, that is, the first axis is a defined axis, and does not indicate that there is a physical first axis on the first display unit 100 . The second axis refers to the dividing line between the third display portion 210 and the fourth display portion 230, that is, the second axis is a defined axis, and does not indicate that there is a second axis on the second display unit 200. The back surface of the second display portion 130 is a side surface of the second display portion 130 away from the light-emitting side, and the back surface of the third display portion 210 is a side surface of the third display portion 210 away from the light-emitting side. The back surface of the second display portion 130 and the back surface of the third display portion 210 are attached to each other.

In the display device provided by the embodiment of the present disclosure, the first display portion 110 and the second display portion 130 can be bent along the first axis, the third display portion 210 and the fourth display portion 230 can be bent along the second axis, and the second display portion 130 The back of the display device is connected to the back of the third display portion 210, so that the display device can realize double-sided display at the position of the second display portion 130 and the third display portion 210, and provides a variety of selectable display modes, and ensures that the display device The portability of the display device prevents the display device from being too thick, which is conducive to the lightness and thinness of the bendable terminal device.

Further, as shown in FIG. 2, the display device provided by the embodiment of the present disclosure may further include a first support frame 300 and a second support frame 400. The first support frame 300 is provided on the back of the first display portion 110, and the first display The back of the part 110 is the side of the first display part 110 away from the light-emitting side; the second support frame 400 is provided on the back of the fourth display part 230, and the back of the fourth display part 230 is a side of the fourth display part 230 away from the light-emitting side. side.

The various parts of the display device provided by the embodiments of the present disclosure will be described in detail below:

As shown in FIG. 3, the first display unit 100 and the second display unit 200 may be an integrated structure, and the first display unit 100 and the second display unit 200 can be bent along a third axis, which is located in the first display unit 100. And the second display unit 200.

The first display unit 100 may be a flexible OLED (organic light-emitting diode, organic light-emitting diode) display device, and the second display unit 200 may also be a flexible OLED display device.

The flexible OLED display device may include a flexible substrate, an organic electroluminescence layer, a thin film encapsulation layer, a flexible cover plate, and the like. The organic electroluminescence layer is arranged on the flexible substrate, the thin film encapsulation layer is arranged on the side of the organic electroluminescence layer away from the flexible substrate, and the flexible cover plate is arranged on the side of the thin film encapsulation layer away from the organic electroluminescence layer.

Among them, the flexible substrate may include a flexible substrate, a driving circuit layer, etc., because the flexible substrate will be subjected to greater stress when the display device is bent, so a stress relief groove can be started on the flexible substrate, and the stress relief groove can reduce the stress during bending. Stress on the flexible substrate. The organic electroluminescent layer includes a plurality of pixel units, and the image is displayed by emitting light through the pixel units. Usually, it is necessary to ensure that the light emitted by the display device conforms to the expected light emission when the user's eyes are facing the light-emitting surface. However, in a curved display device, since the display device has at least two display modes, namely a flat display mode and a curved display mode, the light path and light intensity of the light emitted by the pixel unit can be changed to ensure that the display effect meets the expected effect.

For example, the first display unit 100 and the second display unit 200 are symmetrical along the third axis. That is, when the first display unit 100 and the second display unit 200 are an integrated structure, the third axis is the middle separation line of the integrated display device. Of course, in practical applications, the first display unit 100 and the second display unit 200 may also be asymmetric, which is not specifically limited in the embodiment of the present disclosure.

The integrated first display unit 100 and the second display unit 200 may be referred to as a full display device, and the full display device may be a flexible OLED display device. Since the full display device is bent at the third axis, the flexible substrate of the full display device can be provided with a stress relief groove at the third axis to relieve bending stress. And the pixel unit and the pixel definition layer can be rearranged at the third axis to ensure the display effect. For example, the attenuation of long-wavelength light is slower under non-frontal viewing angles, and the full display device may display abnormalities in the bending area. Since the red light has the longest wavelength in the pixel unit, the bendable area will display reddish at this time. The structure of the red photo sub-pixel unit and the structure of the pixel definition layer around the red photo sub-pixel unit can be changed to avoid display abnormalities.

It is understandable that, as shown in FIG. 4, the first display unit 100 and the second display unit 200 may have a split structure, the second display portion 130 is far away from the first display portion 110, and the third display portion 210 is far away from the fourth display portion. One end of the display part 230 is connected.

Wherein, both the first display unit 100 and the second display unit 200 may be flexible OLED display devices, and in order to reduce the black borders at the connection between the first display unit 100 and the second display unit 200, the second display unit 100 The end of the display part 130 away from the first display part 110 may be a curved display structure, and the end of the third display part 210 of the second display unit 200 away from the fourth display part 230 may be a curved display structure.

Since the end of the second display portion 130 away from the first display portion 110 and the end of the third display portion 210 are both curved display structures, when the curved display structure is displayed on the display device, the display effect may be poor. Improve the display effect by changing the pixel arrangement of the curved display structure or the structure of the pixel definition layer.

The first display unit 100 is divided into a first display portion 110 and a second display portion 130 by a first axis, one side of the first axis is the first display portion 110, and the other side of the first axis is the second display portion 130 . Wherein, the flexible substrate of the first display unit 100 may be provided with a stress relief groove at the position of the first axis to relieve the bending stress of the first display unit 100.

For example, the first display portion 110 and the second display portion 130 are symmetrical along the first axis. That is, the first axis is located at the center line of the first display unit 100. Of course, in practical applications, the first display portion 110 and the second display portion 130 may also be asymmetric, which is not specifically limited in the embodiment of the present disclosure.

The second display unit 200 is divided into a third display portion 210 and a fourth display portion 230 by a second axis. One side of the second axis is the third display portion 210, and the other side of the second axis is the fourth display portion 230. . Wherein, the flexible substrate of the second display unit 200 may be provided with a stress relief groove at the position of the second axis to relieve the bending stress of the second display unit 200.

For example, the third display portion 210 and the fourth display portion 230 are symmetrical along the second axis. That is, the second axis is located at the center line of the second display unit 200. Of course, in practical applications, the third display portion 210 and the fourth display portion 230 may also be asymmetric, which is not specifically limited in the embodiment of the present disclosure.

When the first display portion 110 and the second display portion 130 are symmetrical about the first axis in the first display unit 100, and the third display portion 210 and the fourth display portion 230 are symmetrical about the second axis in the second display unit 200, the The structure of one display unit 100 may be the same as the structure of the second display unit 200. For example, the first display unit 100 may have a rectangular structure, and the second display unit 200 may have the same rectangular structure as the first display unit 100.

When the first display portion 110 and the second display portion 130 in the first display unit 100 are asymmetrical, and the third display portion 210 and the fourth display portion 230 in the second display unit 200 are asymmetrical, the first display unit 100 and the second display portion The structure of the display unit 200 may be different. Among them, it is necessary to ensure that the shapes of the second display portion 130 and the third display portion 210 are the same, so that after the back of the second display portion 130 and the back of the third display portion 210 are connected, the second display portion 130 and the third display portion 210 The display part 210 overlaps.

The first support frame 300 is used to support the first display portion 110, the first support frame 300 is provided on the back of the first display portion 110, and the back of the first display portion 110 is the side of the first display portion 110 away from the light emitting side; The second support frame 400 is used to support the fourth display portion 230. The second support frame 400 is disposed on the back of the fourth display portion 230. The back of the fourth display portion 230 is the side of the fourth display portion 230 away from the light emitting side.

Wherein, the first support frame 300 and the second support frame 400 may be hingedly connected. The display device may include a rotating shaft 500, and the first supporting frame 300 is connected to the rotating shaft 500 and can rotate around the rotating shaft 500. The second support frame 400 is connected to the rotating shaft 500 and can rotate around the rotating shaft 500.

As shown in FIG. 5, the first support frame 300 and the second support frame 400 can be bent inward. Inward bending means that the first support frame 300 and the second support frame 400 rotate so that the light exit side of the first display portion 110 and the light exit side of the fourth display portion 230 are opposite. At this time, in the first display unit 100, the light-emitting side of the first display portion 110 and the light-emitting side of the second display portion 130 are opposite, and in the second display unit 200, the light-emitting side of the third display portion 210 and the fourth display portion 230 are opposite. .

For example, the first support frame 300 and the second support frame 400 are hinged by the rotating shaft 500. On this basis, the first limit position of the rotation of the first support frame 300 and the second support frame 400 may be such that the first display portion 110 It is located on the same plane as the fourth display portion 230 when it is unfolded, and the second limit position of the rotation of the first support frame 300 and the second support frame 400 is such that the first display portion 110 and the fourth display portion 230 are parallel when they are bent.

It can be understood that, as shown in FIG. 6, the first support frame 300 and the second support frame 400 may also be able to be bent outward. The outward bending means that the first support frame 300 and the second support frame 400 rotate so that the light exit side of the first display portion 110 and the light exit side of the fourth display portion 230 face each other. At this time, the light emitting side of the first display portion 110 and the light emitting side of the second display portion 130 in the first display unit 100 are the same, and the light emitting side of the third display portion 210 and the fourth display portion 230 are the same in the second display unit 200 .

Of course, in practical applications, the display device can also have both inward bending and outward bending functions. In this case, multiple modes of display can be realized. For example, the angle between the first display portion 110 and the fourth display portion 230 can be It is 120 degrees, and the included angle between the first display portion 110 and the second display portion 130 can also be 120 degrees. In this case, the display device can display in three user perspectives.

Further, the display device provided by the embodiment of the present disclosure may further include an elastic member, and an elastic member may be provided on the back of the first display unit 100 and the second display unit 200, and the elastic member is used to elasticize the curved or opened display part. To the preset position. For example, the elastic member can bounce the first display portion 110 and the fourth display portion 230 to the first limit position or the second limit position; or the elastic member can bounce the first display portion 110 and the fourth display portion 230 to an angle of 120, and the second display portion 130 is bounced to a position that forms an angle of 120 degrees with the first display portion 110, and so on.

In the display device provided by the embodiment of the present disclosure, the first display portion 110 and the second display portion 130 can be bent along the first axis, the third display portion 210 and the fourth display portion 230 can be bent along the second axis, and the second display portion 130 The back of the display device is connected to the back of the third display portion 210, so that the display device can realize double-sided display at the position of the second display portion 130 and the third display portion 210, and provides a variety of selectable display modes, and ensures that the display device The portability of the display device prevents the display device from being too thick, which is conducive to the lightness and thinness of the bendable terminal device. In addition, since the second display portion 130 and the third display portion 210 are flexible structures, the second display portion 130 and the third display portion 210 can be flipped during use, which increases the use mode of the display device and can enrich the user experience.

Exemplary embodiments of the present disclosure also provide a terminal device, which includes the above-mentioned display device. The terminal device provided by the embodiments of the present disclosure can be bent along the first axis and the second axis of the display device, and the second display portion 130 and the third display portion 210 that are attached back to back can realize double-sided display, providing a variety of The display mode can be selected, and the portability of the display device is ensured, and the thickness of the display device is prevented from being too thick, which is beneficial to the lightness and thinness of the bendable terminal equipment. In addition, since the second display portion 130 and the third display portion 210 are flexible structures, the second display portion 130 and the third display portion 210 can be flipped during use, which increases the use mode of the display device and can enrich the user experience.

Further, the terminal device may further include a first body and a second body. The first body is provided on the back of the first display portion 110, and the back of the first display portion 110 is the side of the first display portion 110 away from the light output. The second body is provided on the back of the fourth display portion 230, and the back of the fourth display portion 230 is the side of the fourth display portion 230 away from the light-emitting side.

The first body and the second body may be hingedly connected, for example, the first body and the second body are connected by a hinge. The first body is connected to the rotating shaft and can rotate around the rotating shaft. The second supporting body is connected to the rotating shaft and can rotate around the rotating shaft.

The first body and the second body can be bent inward or outward. The inward bending refers to the rotation of the first body and the second body, so that the light-emitting side of the first display portion 110 and the fourth display portion 230 are rotated. The light emitting side is opposite. Outward bending means that the first body and the second body rotate so that the light-emitting side of the first display portion 110 and the light-emitting side of the fourth display portion 230 face each other.

For example, when the display device includes the first support frame 300 and the second support frame 400; the first body can be provided on the first support frame 300, and the second body can be provided on the second support frame 400. The first body can rotate with the first support frame 300, and the second body can move with the second support frame 400. The movement modes of the first support frame 300 and the second support frame 400 have been detailed in the corresponding display device section. Note, I won’t repeat it here.

It should be noted that the terminal device described in the embodiment of the present disclosure may be an electronic device such as a mobile phone, a tablet computer, an e-book, or a TV.

The terminal device provided by the embodiments of the present disclosure can be bent along the first axis and the second axis of the display device, and the second display portion 130 and the third display portion 210 that are attached back to back can realize double-sided display, providing a variety of The display mode can be selected, and the portability of the display device is ensured, and the thickness of the display device is prevented from being too thick, which is beneficial to the lightness and thinness of the bendable terminal equipment. In addition, since the second display portion 130 and the third display portion 210 are flexible structures, the second display portion 130 and the third display portion 210 can be flipped during use, which increases the use mode of the display device and can enrich the user experience.

Those skilled in the art will easily think of other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptive changes of the present disclosure. These variations, uses, or adaptive changes follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field that are not disclosed in the present disclosure. . The description and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

A display device, the display device comprising:

The first display unit includes a first display portion and a second display portion, the first display portion and the second display portion can be bent along a first axis, and the first axis is located between the first display portion and the second display portion. Between the two display parts;

The second display unit includes a third display portion and a fourth display portion, the third display portion and the fourth display portion can be bent along a second axis, and the second axis is located between the third display portion and the fourth display portion. Among the four display parts, the back surface of the second display part and the back surface of the third display part are connected.
7. The display device of claim 1, wherein the first display unit and the second display unit are an integral structure, the first display unit and the second display unit can be bent along a third axis, the The third axis is located between the first display unit and the second display unit.
3. The display device of claim 2, wherein the first display unit and the second display unit are symmetrical along the third axis.
The display device according to claim 1, wherein the first display unit and the second display unit are of a split structure, and an end of the second display portion away from the first display portion and the third display portion The end away from the fourth display part is connected.
5. The display device according to claim 4, wherein the end of the second display portion away from the first display portion has a curved display structure, and the end of the third display portion away from the fourth display portion has a curved display structure.
8. The display device of claim 1, wherein the first display portion and the second display portion are symmetrical along the first axis.
8. The display device of claim 1, wherein the third display portion and the fourth display portion are symmetrical along the second axis.
The display device according to claim 1, further comprising:

The first support frame is arranged on the back of the first display portion, and the back of the first display portion is a side surface of the first display portion away from the light emitting side;

The second supporting frame is arranged on the back of the fourth display portion, and the back of the fourth display portion is a side surface of the fourth display portion away from the light emitting side.
8. The display device according to claim 8, wherein the first support frame and the second support frame are hinged, and the first support frame and the second support frame can be bent inwardly.
8. The display device according to claim 8, wherein the first support frame and the second support frame are hinged, and the first support frame and the second support frame can be bent outward.
8. The display device of claim 1, wherein the first display unit is a flexible OLED display device, and the second display unit is a flexible OLED display device.
The display device according to claim 11, the first display unit comprising:

The flexible substrate is provided with a stress relief groove, and the stress relief groove is used to reduce the stress of the first display unit when it is bent.
11. The display device of claim 12, wherein the flexible substrate of the first display unit is provided with the stress relief groove at the position of the first axis.
The display device of claim 12, wherein the second display unit comprises:

The flexible substrate is provided with a stress relief groove, and the stress relief groove is used to reduce the stress of the second display unit when it is bent.
15. The display device of claim 14, wherein the flexible substrate of the second display unit is provided with the stress relief groove at the position of the second axis.
The display device according to claim 1, wherein the back surface of the second display portion and the back surface of the third display portion are attached to each other.
The display device according to claim 1, further comprising:

The elastic member is provided on the back of the first display unit and the second display unit.
A terminal device comprising the display device according to any one of claims 1-17.
The terminal device according to claim 18, the terminal device further comprising:

The first body is arranged on the back of the first display portion, and the back of the first display portion is the side of the first display portion away from the light emitting side;

The second body is arranged on the back of the fourth display portion, and the back of the fourth display portion is the side of the fourth display portion away from the light emitting side.
The terminal device according to claim 19, wherein the display device comprises a first support frame and a second support frame;

The first body is arranged on the first supporting frame, and the second body is arranged on the second supporting frame.