CN112563431A

CN112563431A - Curved surface display device and electronic equipment

Info

Publication number: CN112563431A
Application number: CN202011404575.1A
Authority: CN
Inventors: 王全林
Original assignee: Huizhou TCL Mobile Communication Co Ltd
Current assignee: Huizhou TCL Mobile Communication Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-03-26

Abstract

The invention relates to the technical field of display, and discloses a curved surface display device and electronic equipment. The curved surface display device comprises a plane display part positioned in the middle area and curved surface display parts adjacent to two sides of the plane display part; the curved surface display device further includes: a light emitting layer; the protective layer is attached to the back of the light-emitting layer; an encapsulation layer covering the light emitting layer; and the buffer hole is arranged in at least one of the luminous layer, the protective layer and the packaging layer corresponding to the curved surface display part. The curved surface display device and the electronic equipment provided by the invention solve the problem that the bending part of the existing curved surface screen is stressed too much in the laminating process, so that film cracks are easily generated, and the laminating yield is reduced.

Description

Curved surface display device and electronic equipment

Technical Field

The invention relates to the technical field of display, in particular to a curved surface display device and electronic equipment.

Background

The flexible curved screen can bring higher screen occupation ratio, the flexible curved screen is developed rapidly in recent years, the bending angle of the flexible curved screen is larger and larger, a waterfall screen with edges being approximately vertical to a plane is formed, even the flexible curved screen surrounds the flexible curved screen, and the flexible curved screen extends from the front to the back.

The existing curved screen full-lamination process guides the Panel (display Panel) to bend through a Guide Film and laminates with CG (cover Glass) with large curvature, and the stress of the screen bending part is too large in the lamination process, so that Film cracks are easily generated, and the lamination yield is reduced.

Disclosure of Invention

The invention provides a curved surface display device and electronic equipment, and solves the problem that the bending part of the existing curved surface screen is stressed too much in the laminating process, so that film cracks are easy to generate, and the laminating yield is reduced.

The present invention provides a curved surface display device, comprising: the display device comprises a plane display part positioned in a middle area and curved surface display parts adjacent to two sides of the plane display part;

the curved surface display device further includes:

a light emitting layer;

the protective layer is attached to the back of the light-emitting layer;

an encapsulation layer covering the light emitting layer; and

and the buffer hole is arranged in at least one of the luminous layer, the protective layer and the packaging layer corresponding to the curved surface display part.

Preferably, the curved surface display device further includes:

and the light-transmitting cover plate covers the packaging layer, and the cross section width of the light-transmitting cover plate is greater than or equal to that of the light-emitting layer.

Preferably, when the buffer hole is disposed in the light emitting layer and/or the encapsulation layer corresponding to the curved display portion, the area corresponding to the buffer hole is an invalid display area.

Preferably, the plurality of buffer holes arranged on the two sides of the curved surface display part are symmetrically arranged along the central axis of the light emitting layer.

Preferably, the plurality of buffer holes arranged on the curved display parts at two sides are asymmetrically arranged along the central axis of the light emitting layer.

Preferably, the plurality of buffer holes arranged on any side of the curved surface display part are arranged in multiple rows.

Preferably, among the plurality of buffer holes arranged in multiple rows, the transversely adjacent buffer holes are positioned on the same straight line; or

The transversely adjacent buffer holes are positioned on different straight lines.

Preferably, the plurality of buffer holes in the light emitting layer, the protective layer and the encapsulation layer corresponding to the curved surface display portion are distributed in a staggered manner.

Preferably, the shape of the buffer hole includes at least one of a rectangle and a circle.

The invention also provides electronic equipment comprising the curved surface display device.

According to the curved surface display device and the electronic equipment, the buffer hole is formed in at least one of the luminescent layer, the protective layer and the packaging layer corresponding to the curved surface display part on at least one side of the curved surface display device, so that the curved surface display part is beneficial to reducing the bending stress of the curved surface display part in the full-laminating process of the curved surface display device, and the poor lamination caused by cracks generated on the curved surface display part is further improved.

Drawings

The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.

FIG. 1a is a schematic top view of a conventional curved display device;

FIG. 1b is a schematic cross-sectional view A-A of FIG. 1 a;

FIG. 1c is an enlarged view of the point A in FIG. 1 b;

FIG. 2 is an exploded view of a curved display device according to an embodiment of the present invention;

fig. 3a to fig. 3e are schematic top view structural diagrams of various curved surface display devices according to an embodiment of the present invention;

FIGS. 4a to 4d are schematic enlarged cross-sectional views of various curved display devices according to embodiments of the present invention;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The embodiment of the invention is used for solving the problem that the bending part of the existing curved screen is stressed too much in the laminating process, film cracks are easy to generate, and the laminating yield is reduced.

Fig. 2 is an exploded schematic view of a curved display device according to an embodiment of the present invention, fig. 3a to 3e are schematic views of top-view structures of various curved display devices according to an embodiment of the present invention, and fig. 4a to 4d are schematic views of enlarged cross-sections of various curved display devices according to an embodiment of the present invention. Referring to fig. 2, 3a to 3e and 4a to 4d, a curved display device 100 according to an embodiment of the present invention includes a flat display portion located in a middle region, and curved display portions 100-1 adjacent to two sides of the flat display portion; and the curved surface display device further comprises a plurality of layer structures: a light emitting layer 120; a protective layer 110 attached to the back of the light emitting layer 120; an encapsulation layer 130 covering the light emitting layer 120; and a buffer hole 150 disposed in at least one of the light emitting layer 120, the protection layer 110, and the encapsulation layer 130 corresponding to the curved display portion 100-1.

FIG. 1a is a schematic top view of a conventional curved display device; FIG. 1b is a schematic cross-sectional view A-A of FIG. 1 a; FIG. 1c is an enlarged view of A in FIG. 1 b. Referring to fig. 1a to 1c, in a conventional curved display device 100 ', a protection layer 110 ', a light emitting layer 120 ' and a packaging layer 130 ' corresponding to a curved display portion 100-1 ' are continuous and complete film layers, and when a panel layer composed of the protection layer 110 ', the light emitting layer 120 ' and the packaging layer 130 ' is bent by a full-lamination process and then is laminated with a light-transmitting cover plate 140 ' with a large curvature, the panel layer corresponding to the curved display portion 100-1 ' is subjected to an excessive stress in a lamination process, which easily causes a film layer crack, and thus reduces a lamination yield, and further reduces stability of the curved display device 100 '.

In the curved surface display device 100 provided in the embodiment of the present invention, the buffer hole 150 is disposed in at least one of the light emitting layer 120, the protective layer 110 and the encapsulation layer 130 corresponding to the curved surface display portion 100-1 on at least one side of the curved surface display device 100, so as to help reduce the bending stress of the curved surface display portion 100-1 during the full bonding process of the curved surface display device 100, and further improve the poor bonding caused by cracks generated in the curved surface display portion 100-1.

Preferably, the curved display device 100 further comprises a light-transmissive cover plate 140. The light-transmitting cover plate 140 covers the encapsulation layer 130, and the cross-sectional width of the light-transmitting cover plate 140 is greater than that of the light-emitting layer 120, as shown in fig. 4a, 4c, and 4 d. In the circular curved display device 100 shown in fig. 4b, the cross-sectional width of the light-transmitting cover plate 140 is equal to the cross-sectional width of the light-emitting layer 120.

The material of the light-transmitting cover plate 140 is preferably glass, and the cross-sectional width of the light-transmitting cover plate 140 is greater than or equal to that of the light-emitting layer 120, so that the light-transmitting cover plate 140 with a wider cross-sectional size can protect the panel layer composed of the light-emitting layer 120, the protective layer 110 and the encapsulation layer 130 while not affecting display, and the service life of the curved display device 100 can be prolonged.

Specifically, referring to fig. 4a to 4d, the protection layer 110 may include a metal foil layer 111 and a foam layer 112 stacked along a back surface adjacent to the luminescent layer 120, wherein the metal foil layer 111 is preferably a copper foil. The foam layer 112 is attached to the back of the light-emitting layer 120 to buffer the external impact force, so as to prevent the light-emitting layer 120 from being damaged; the metal foil layer 111 has a conductive function, so that the luminescent layer 120 can be protected from electromagnetic interference.

The Light Emitting layer 120 may include a support film and an OLED (Organic Light-Emitting Diode) flexible screen. The flexible substrate of the flexible OLED screen is very thin, stiffness is not enough, deformation easily occurs, the use experience and the service life of the flexible display device can be seriously influenced, the supporting film can effectively support the OLED screen body, and the screen body cannot be deformed to generate reaction.

The Encapsulation layer 130 may specifically include a TFE (Thin-Film Encapsulation) Encapsulation Film 131, a polarizer 132, and an OCA optical adhesive layer 133. The packaging layer 130 can play a role in blocking water and oxygen from the light-emitting layer 120, and meanwhile, the OCA optical adhesive layer 133 in the packaging layer 130 is used for attaching the panel layer consisting of the protective layer 110, the light-emitting layer 120 and the packaging layer 130 to the light-transmitting cover plate 140 in a full-attachment process, so that air between the panel layer and the light-transmitting cover plate 140 is eliminated, light reflection is greatly reduced, loss of transmitted light is reduced, brightness is improved, and the display effect of the curved-surface display device 100 is enhanced.

In a specific implementation process, referring to fig. 4a to 4d, when the buffer hole 150 is disposed on the light emitting layer 120 and/or the encapsulation layer 130 corresponding to the curved display portion 100-1, a region corresponding to the buffer hole 150 is an invalid display region, and the display function of the peripheral region of the buffer hole 150 is not affected, so that normal display can be performed.

Specifically, in fig. 4a and 4b, the buffer hole 150 penetrates through the protective layer 110, the light emitting layer 120 and the encapsulation layer 130, and a region corresponding to the buffer hole 150, i.e., a dashed region in the figure, is an invalid display region; in fig. 4c, the buffer hole 150 penetrates through the light emitting layer 120 and a portion of the encapsulation layer 130, and a region corresponding to the buffer hole 150, i.e., a dashed region in the figure, is an inactive display region; in fig. 4d, the curved display portion 100-1 includes two buffer holes 150 and 150 ', and the corresponding region of the buffer hole 150' is an invalid display region.

In the subsequent UI Design (User Interface Design) process of the whole electronic equipment, important contents are placed on the flat display part in the middle area of the curved surface display device 100 for display, and unimportant contents are placed on the curved surface display parts 100-1 on two sides of the flat display part for display, so that the influence of an invalid display area on display is reduced; or the invalid display area is set as other functional areas, such as a key area, so that the influence on the user experience is reduced.

It is understood that when the buffer holes 150 are formed in any one of the protection layers 110, the corresponding regions of the buffer holes 150 can still be normally displayed. At this time, the stress generated in the curved display part 100-1 during the bending process is relieved to some extent, and no invalid display area occurs.

As shown in fig. 3a, 3c, 3d and 3e, the plurality of buffer holes 150 disposed on the curved display parts 100-1 at both sides are symmetrically disposed along the central axis of the light emitting layer 120. The buffer holes 150 are symmetrically arranged, so that the implementation is convenient, and the process difficulty is reduced.

In addition, referring to fig. 3b, the plurality of buffer holes 150 disposed on the curved display part 100-1 may be disposed asymmetrically along the central axis of the light emitting layer 120.

In one embodiment, the plurality of buffer holes 150 disposed on any one side of the curved display portion 100-1 are arranged in a plurality of rows, which can refer to the structure shown in fig. 3d and 3 e. Further, among the plurality of buffer holes 150 arranged in multiple rows, the laterally adjacent buffer holes 150 may be located on the same straight line, as shown in fig. 3 d; or the transversely adjacent buffer holes 150 are located on different straight lines, as shown in fig. 3e, the transversely adjacent buffer holes 150 are arranged in a zigzag shape.

Preferably, the plurality of buffer holes 150 disposed in the light emitting layer 120, the protective layer 110 and the encapsulation layer 130 corresponding to the curved display portion 100-1 are distributed in a staggered manner.

Referring to fig. 4d, two buffer holes 150 and 150 'are respectively disposed in the protection layer 110, the luminescent layer 120 and the TFE encapsulation film 131, that is, the buffer hole 150 penetrates through the metal foil layer 111 and the foam layer 112 in the protection layer 110, and the buffer hole 150' penetrates through the support film and the OLED flexible screen included in the luminescent layer 120 and the TFE encapsulation film 131. As can be seen from the figure, the buffer holes 150 and 150 'are distributed in a staggered manner and are not completely connected to each other, so that a larger opening area can be formed in the curved display portion 100-1, but the buffer holes 150 only play a role in relieving the bending stress without affecting the display, so that the area corresponding to the ineffective display area is the area corresponding to the buffer holes 150'. In this structure, a larger opening area can be formed in the curved display portion 100-1 to better relieve the stress generated during the bending process, and meanwhile, the problem that the invalid display area is too large to affect the user experience can be avoided.

Optionally, the top view shape of the buffer hole 150 includes at least one of a rectangle and a circle, but may also be other shapes, such as a polygon, a semicircle, etc., without being limited thereto.

The embodiment of the invention also provides electronic equipment, which can be electronic equipment such as a smart phone, a tablet computer and a personal computer. Any one of the curved surface display devices described in the above embodiments may be applied to the electronic device, so that the electronic device obtains a higher screen occupation ratio and the attachment yield of the screen in the manufacturing process of the electronic device is improved.

Fig. 5 shows a specific structural block diagram of an electronic device provided in an embodiment of the present invention. As shown in fig. 5, the electronic device 200 may include Radio Frequency (RF) circuitry 210, memory 220 including one or more computer-readable storage media, an input unit 230, a display unit 240, a sensor 250, audio circuitry 260, a transmission module 270 (e.g., Wireless Fidelity (WiFi), a Wireless Fidelity (wi-fi)), a processor 280 including one or more processing cores, and a power supply 290. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 5 does not constitute a limitation of the electronic device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The RF circuit 210 is used for receiving and transmitting electromagnetic waves, and implementing interconversion between the electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. RF circuit 210 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. The RF circuit 210 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various Communication standards, protocols, and technologies, including, but not limited to, Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (e.g., Institute of Electrical and Electronics Engineers (IEEE) standard IEEE802.11 a, IEEE802.11 b, IEEE802.11g, and/or IEEE802.11 n), Voice over Internet Protocol (VoIP), world wide mail Access (Microwave Access for micro), wimax-1, other suitable short message protocols, and any other suitable Protocol for instant messaging, and may even include those protocols that have not yet been developed.

The memory 220 may be used to store software programs and modules, and the processor 280 executes various functional applications and data processing by operating the software programs and modules stored in the memory 220. Memory 220 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 220 may further include memory located remotely from the processor 280, which may be connected to the electronic device 200 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input unit 230 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 230 may include a touch-sensitive surface 231 as well as other input devices 232. The touch-sensitive surface 231, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface 231 using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 231 may comprise two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts it to touch point coordinates, and then provides the touch point coordinates to the processor 280, and can receive and execute commands from the processor 280. In addition, the touch-sensitive surface 231 may be implemented in various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 230 may comprise other input devices 232 in addition to the touch sensitive surface 231. In particular, other input devices 232 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 240 may be used to display information input by or provided to the user and various graphical user interfaces of the electronic device 200, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 240 may include a Display panel 241, and optionally, the Display panel 241 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. The display panel 241 may be any curved display device provided in the above embodiments, so that the electronic device 200 has a higher screen ratio, and the attachment yield of the screen in the manufacturing process of the electronic device 200 is improved. Further, the touch-sensitive surface 631 may overlay the display panel 241 and, upon detecting a touch operation on or near the touch-sensitive surface 231, communicate to the processor 280 to determine the type of touch event, and the processor 280 then provides a corresponding visual output on the display panel 241 based on the type of touch event. Although in the figures, the touch-sensitive surface 231 and the display panel 241 are shown as two separate components to implement input and output functions, in some embodiments, the touch-sensitive surface 231 may be integrated with the display panel 241 to implement input and output functions.

The electronic device 200 may also include at least one sensor 250, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 241 according to the brightness of ambient light, and a proximity sensor that may generate an interrupt when the folder is closed or closed. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the electronic device 200, detailed descriptions thereof are omitted.

Audio circuitry 260, speaker 261, and microphone 262 may provide an audio interface between a user and electronic device 200. The audio circuit 260 may transmit the electrical signal converted from the received audio data to the speaker 261, and convert the electrical signal into a sound signal by the speaker 261 and output the sound signal; on the other hand, the microphone 262 converts the collected sound signal into an electric signal, which is received by the audio circuit 260 and converted into audio data, which is then processed by the audio data output processor 280, and then transmitted to, for example, another terminal via the RF circuit 210, or the audio data is output to the memory 220 for further processing. The audio circuitry 260 may also include an earbud jack to provide communication of a peripheral headset with the electronic device 200.

The electronic device 200, which may assist the user in receiving requests, sending information, etc., through a transmission module 270 (e.g., a Wi-Fi module), provides the user with wireless broadband internet access. Although the transmission module 270 is shown in the drawings, it is understood that it does not belong to the essential constitution of the electronic device 200, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 280 is a control center of the electronic device 200, connects various parts of the entire cellular phone using various interfaces and lines, and performs various functions of the electronic device 200 and processes data by operating or executing software programs and/or modules stored in the memory 220 and calling data stored in the memory 220, thereby integrally monitoring the electronic device. Optionally, processor 280 may include one or more processing cores; in some embodiments, processor 280 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 280.

Electronic device 200 also includes a power supply 290 (e.g., a battery) for powering the various components, which may be logically coupled to processor 280 via a power management system in some embodiments, such that the functions of managing charging, discharging, and power consumption are performed via the power management system. The power supply 290 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Although not shown, the electronic device 200 further includes a camera (e.g., a front camera, a rear camera), a bluetooth module, and the like, which are not described in detail herein.

The curved surface display device and the electronic device provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the embodiment is only used to help understanding the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The curved surface display device is characterized by comprising a flat surface display part positioned in a middle area and curved surface display parts adjacent to two sides of the flat surface display part;

the curved surface display device further includes:

a light emitting layer;

the protective layer is attached to the back of the light-emitting layer;

an encapsulation layer covering the light emitting layer; and

2. The curved display device according to claim 1, further comprising:

3. The curved display device according to claim 1, wherein when the buffer hole is disposed in the light emitting layer and/or the encapsulation layer corresponding to the curved display portion, the area corresponding to the buffer hole is an inactive display area.

4. The curved display device according to claim 1, wherein the plurality of buffer holes are symmetrically disposed along a central axis of the light-emitting layer.

5. The curved display device according to claim 1, wherein the plurality of buffer holes provided in the curved display portions on both sides are asymmetrically arranged along a central axis of the light emitting layer.

6. The curved display device according to claim 1, wherein the plurality of buffer holes provided in the curved display portion are arranged in a plurality of rows.

7. The curved display device of claim 6, wherein among the plurality of buffer holes arranged in multiple rows, the laterally adjacent buffer holes are located on a same straight line; or

8. The curved display device according to claim 1, wherein the plurality of buffer holes provided in the light emitting layer, the protective layer and the encapsulation layer corresponding to the curved display portion are distributed in a staggered manner.

9. The curved display device of claim 1, wherein the shape of the buffer holes comprises at least one of rectangular and circular.

10. An electronic device comprising the curved display device according to any one of claims 1 to 9.