CN111145647A - Cover plate and display device - Google Patents

Abstract

The invention provides a cover plate and a display device, wherein the cover plate comprises a plane part, an arc surface part and an arc corner part, and the plane part comprises a plurality of edges and a plurality of corners connected with the edges; the cambered surface part comprises a plurality of sub-cambered surface parts which are respectively connected with a plurality of edges of the plane part and are bent into cambered surfaces towards the surface of one side of the plane part; the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner parts are connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corners, and the plane part, the arc surface parts and the arc corner parts enclose an accommodating cavity; wherein at least one of the plurality of sub-arc corners is formed with a protrusion within the receiving cavity. Through forming the arch in at least one sub-arc corner, when follow-up flexible display panel and apron laminating, because sub-arc corner and flexible display panel's area of contact increase, flexible display panel can laminate with the arch, has improved the phenomenon that flexible display panel produced the fold at the polygon, and the laminating effect is better.

Description

Cover plate and display device

Technical Field

The invention relates to the technical field of display, in particular to a cover plate and a display device.

Background

With the mature technology of the flexible panel, it is a common way to attach the flexible display panel and the curved cover plate to form a curved screen. A plurality of edges of the existing multi-surface bent cover plate are arc-surface-shaped, and when the flexible display panel is attached to the flexible display panel, the flexible display panel is easy to wrinkle at the multi-angle position of the cover plate and cannot be effectively attached.

Therefore, the existing cover plate has the technical problem that the flexible display panel is easily wrinkled when being attached to the cover plate, and needs to be improved.

Disclosure of Invention

The invention provides a cover plate and a display device, which are used for relieving the technical problem that a flexible display panel in the existing cover plate is easy to wrinkle at multiple corners when being attached with the flexible display panel.

In order to solve the above problems, the technical scheme provided by the invention is as follows:

the present invention provides a cover plate, comprising:

a planar portion including a plurality of sides and a plurality of corners connected to the plurality of sides;

the arc surface part comprises a plurality of sub-arc surface parts, the sub-arc surface parts are respectively connected with a plurality of edges of the plane part, and the sub-arc surface parts are bent into arc surfaces towards one side surface of the plane part;

the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner part is connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corner, and the plane part, the arc surface parts and the arc corner parts enclose an accommodating cavity;

wherein at least one of the plurality of sub-arc corners has a protrusion formed within the receiving cavity.

In the cover plate of the present invention, the protrusion is integrally formed with the sub-arc corner portion.

In the cover plate of the present invention, the protrusion is formed independently of the sub-arc corner portion.

In the cover plate of the present invention, the material of the protrusion is the same as that of the cover plate.

In the cover plate of the present invention, the convex surface of the protrusion is circular arc-shaped or wave-shaped.

In the cover plate of the present invention, the number of the protrusions is one or more in the sub-arc corner portions formed with the protrusions.

In the cover plate of the present invention, the plurality of projections are equal in size.

In the cover plate of the present invention, the projections are formed on the sub-arc corners disposed oppositely.

In the cover plate of the present invention, the projections are formed on adjacently disposed sub-arc corners.

The present invention also provides a display device including:

the cover plate comprises a flat surface part, an arc surface part and an arc corner part, wherein the flat surface part comprises a plurality of edges and a plurality of corners connected with the edges, the arc surface part comprises a plurality of sub-arc surface parts, the sub-arc surface parts are respectively connected with the edges of the flat surface part and are bent into an arc surface towards one side surface of the flat surface part, the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner parts are connected with one corner of the flat surface part and two adjacent sub-arc surface parts corresponding to the corners, and the flat surface part, the arc surface part and the arc corner parts enclose a containing cavity, wherein at least one of the sub-arc corner parts is provided with a bulge in the containing cavity;

the flexible display panel sets up hold the intracavity, and with plane portion the arc face portion with the laminating of arc corner portion.

The invention has the beneficial effects that: the invention provides a cover plate and a display device, wherein the cover plate comprises a plane part, an arc surface part and an arc corner part, and the plane part comprises a plurality of edges and a plurality of corners connected with the edges; the cambered surface part comprises a plurality of sub-cambered surface parts, the sub-cambered surface parts are respectively connected with a plurality of edges of the plane part and are bent into cambered surfaces towards one side surface of the plane part; the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner part is connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corner, and the plane part, the arc surface parts and the arc corner parts enclose an accommodating cavity; wherein at least one of the plurality of sub-arc corners has a protrusion formed within the receiving cavity. Through forming the arch in at least one sub-arc corner, when follow-up flexible display panel and apron laminating, because sub-arc corner and flexible display panel's area of contact increase, flexible display panel can laminate with the arch, has improved the phenomenon that flexible display panel produced the fold at the polygon, and the laminating effect is better.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a cover plate according to an embodiment of the present invention.

Fig. 2 is a schematic diagram illustrating a cover plate attached to a flexible display panel according to the prior art.

Fig. 3 is a schematic view illustrating a cover plate and a flexible display panel according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.

In the description of the present application, 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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. 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 application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. 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 application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application 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, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The invention provides a cover plate and a display device, which are used for relieving the technical problem that a flexible display panel in the existing cover plate is easy to wrinkle at multiple corners when being attached with the flexible display panel.

Fig. 1 is a schematic structural diagram of a cover plate according to an embodiment of the present invention. The cover plate 10 includes a flat portion 100, an arc portion, and an arc corner portion. The plane part 100 includes a plurality of sides and a plurality of corners connected to the sides, the arc part includes a plurality of sub-arc parts 200, the plurality of sub-arc parts 200 are respectively connected to the plurality of sides of the plane part 100, and are all bent into an arc surface toward a side surface of the plane part 100; the arc corner part comprises a plurality of sub-arc corner parts 300, the sub-arc corner part 300 is connected with one corner of the plane part 100 and two adjacent sub-arc surface parts 200 corresponding to the corner, and the plane part 100, the arc surface parts and the arc corner parts enclose an accommodating cavity; wherein at least one of the plurality of sub-arc corners 300 is formed with a protrusion 400 within the receiving cavity.

The cover plate 10 is usually a transparent cover plate, and may be formed of glass (glass), polymethyl methacrylate (PMMA), Polycarbonate (PC), and the like, and the material of the cover plate is not limited in the present invention.

The planar portion 100 is generally rectangular in configuration, but may have other shapes, including a plurality of sides connected to one another and a plurality of corners connected to the plurality of sides. In this embodiment, taking a rectangle as an example, each side of the planar portion 100 includes a straight line portion and an arc portion, and the plurality of corners may be arc corners, where the arc portions of two adjacent sides enclose an arc corner.

The arc part comprises a plurality of sub-arc parts 200, each sub-arc part 200 is respectively connected with one side of the plane part and is bent into an arc surface towards one side surface of the plane part 100, the bending angle is usually 90 degrees, certainly, the bending angle can be smaller than 90 degrees, and the sub-arc parts can be specifically arranged as required. In the present embodiment, the side to which the sub-arc portions 200 are connected is a straight portion of each side in the planar portion 100, not a bent portion, and therefore, the sub-arc portions 200 are not connected to each other.

The arc corner portion includes a plurality of sub-arc corner portions 300, and each sub-arc corner portion 300 is connected to one corner of the planar portion 100 and two adjacent sub-arc surface portions 200 corresponding to the corner. The sub-arc corner 300 is connected to a corner of the planar portion 100, that is, to two arc edges forming the corner, and is further connected to two adjacent sub-arc portions 200 at two sides of the corner, so that the two adjacent sub-arc portions 200 are connected. The plurality of sub-arc portions 300 connects the plurality of sub-arc portions 200 to each other.

The planar portion 100, the arc portion and the arc corner portion are connected to form an accommodating cavity. Within the receiving cavity, at least one of the sub-arc corners 300 has a protrusion formed therein.

After the cover plate 10 is manufactured, the flexible display panel 20 is attached to the flexible display panel 20, in order to realize multi-surface curved display of the flexible display panel 20, the flexible display panel 20 is attached to the plane portion 100, and is also attached to the plurality of sub-arc surface portions 200 and the plurality of sub-arc corner portions 300, and the portion on the plane portion 100 and the portions on the arc surface portions and the arc corner portions need to be displayed after the flexible display panel is attached.

Fig. 2 is a schematic diagram of a cover plate attached to a flexible display panel 20 according to the prior art, where a in fig. 2 is a schematic plan view of the cover plate attached to the flexible display panel 20, and b in fig. 2 is a schematic cross-sectional view of a sub-arc corner and the flexible display panel 20 after being cut along a-a line perpendicular to the paper surface.

In the prior art, the flexible display panel 20 can be smoothly attached to the flat surface portion 100 and the arc surface portion, however, when the flexible display panel is attached to the sub-arc corner portion 300, since the connection surface between the sub-arc corner portion 300 and the flat surface portion 100 is a curved surface and the connection surface between the sub-arc corner portion 300 and the adjacent sub-arc surface portion 200 is also a curved surface, the sub-arc corner portion 300 has a structure in which a plurality of surfaces are curved surfaces, and the flexible display panel 20 cannot be completely unfolded and attached to the flat surface when attached to the area, so that wrinkles may occur at the sub-arc corner portion 300, and the attachment is not smooth enough. When the display is needed subsequently, the display effect in the area is not good, and the real multi-surface display is difficult to realize.

Fig. 3 is a schematic diagram illustrating a cover plate attached to a flexible display panel 20 according to an embodiment of the present invention, where a in fig. 3 is a schematic plan view illustrating the cover plate attached to the flexible display panel 20, and b in fig. 3 is a schematic cross-sectional view illustrating a sub-arc corner portion and the flexible display panel 20 after being cut along a-a line perpendicular to the paper surface.

With the cover plate 10 of the present invention, since the protrusion 400 is formed at the sub-arc corner 300, which is equivalent to increase the contact area of the sub-arc corner 300, when the subsequent flexible display panel 20 is attached to the sub-arc corner 300, the portion of the flexible display panel 20 that will originally wrinkle will be attached to the protrusion 400, so that the whole flexible display panel 20 presents a smooth attachment state, no wrinkle will be generated, the display effect of the flexible display panel 20 is improved, and the real multi-surface display is realized.

The cover plate of the invention can be formed by adopting a hot pressing mode, firstly, the middle area of a large plate is taken as a plane part 100, and then, the hot pressing treatment is carried out on a plurality of edges of the large plate, so that the edges are bent towards one side surface of the plane part 100 to form an arc-shaped arc surface part and an arc corner part.

In one embodiment, the protrusion 400 is integrally formed with the sub-arc corner 300. The cover plate 10 may be formed by forming the protrusion 400 on the large plate at a position corresponding to the position where the sub-arc corner 300 is subsequently formed, and then performing a hot pressing process on the large plate. Alternatively, the cover plate 10 may be formed by hot pressing a large plate, and the protrusion 400 may be formed at a position corresponding to the sub-arc 300. The protrusion 400 can be formed in different ways according to different manufacturing processes and different processing requirements of the cover plates.

In one embodiment, the protrusion 400 is formed separately from the sub-arc corner 300. After the cover plate 10 is manufactured, the size and the shape of the required protrusion 400 are calculated according to the parameters of the flexible display panel 20 to be subsequently attached, the specific specification and the size are determined through simulation, then the protrusion 400 is manufactured separately, the protrusion 400 and the flexible display panel 20 are fixed together, and then the flexible display panel 20 is attached. Since the protrusions 400 and the sub-arc corners 300 are formed independently, when the same cover plate corresponds to different types of flexible display panels 20, the sizes and shapes of the protrusions 400 are different, so that different protrusions 400 can be selected to be fixed at corresponding positions of the sub-arc corners 300 according to different flexible display panels 20. Therefore, the existing cover plate manufacturing equipment does not need to be changed, and only the corresponding bulge 400 needs to be additionally manufactured and then fixed. The independently formed protrusion 400 and the cover plate may be made of the same or different materials, and may be fixed to the sub-arc corner 300 of the cover plate by means of bonding, welding, or the like.

As shown in b of fig. 3, the convex surface 401 of the protrusion 400 may be a circular arc or a wave, the convex surface area of the protrusion 400 is increased relative to the area of the sub-arc corner 300, and the flexible display panel 20 is attached to the convex surface 401 of the protrusion 400, so that the area of the flexible display panel 20 which is larger than the area of the sub-arc corner 300 is supported by the convex surface 401 of the protrusion 400, and thus no wrinkle is generated. Of course, the convex surface 401 of the protrusion 400 may have other regular or irregular shapes, which can be determined according to the simulation result.

In one embodiment, the number of projections 400 in the sub-arc corner 300 formed with projections is one or more. When the number of the protrusions 400 is one, the convex surface 401 may be an arc shape or a wave shape, and when the number of the protrusions 400 is plural, the convex surface 401 may be an arc shape, and the plurality of protrusions 400 may be arranged in a row, or may be distributed in an array in the sub-arc corner 300. The larger the number of the protrusions 400, the larger the contact area is, the smaller the tendency of generating wrinkles is, but it should be noted that the number of the protrusions 400 is not too large, so as to prevent the contact area from being too large, and the phenomenon that the area of the flexible display panel 20 is not enough to be attached exists in a partial region between the flexible display panel 20 and the cover plate. Therefore, when the number of the protrusions 400 is plural, the size, shape, position, number, etc. of the protrusions 400 need to be set reasonably according to the parameters of the flexible display panel 20 to be attached. The protrusions 400 may be equal in size or unequal in size, may be arranged at equal intervals, or may be arranged at unequal intervals.

In the cover plate 10 of the present invention, the protrusion 400 is formed in at least one of the sub-arc portions 300, and there are various ways of disposing the protrusion 400.

In an embodiment, the protrusion 400 is formed in only one of the sub-arc corner portions 300, and any one of the sub-arc corner portions 300 may be selected to be formed. When the flexible display panel 20 is attached to the cover plate 10, other portions are attached first, and finally, a portion corresponding to the sub-arc corner 300 where the protrusion 400 is formed is attached, so that the original wrinkles of other portions are transferred thereto, and after the flexible display panel 20 is attached to the protrusion 400, the flexible display panel 20 does not generate wrinkles.

In one embodiment, there are two sub-arc corners 300 having the protrusions 400 formed therein, and in this case, the protrusions 400 are disposed in two ways.

In one embodiment, the protrusions 400 are formed on the oppositely disposed sub-arc corners 300. As shown in fig. 1, the sub-arc corners 300 are respectively located at a plurality of positions, namely, the upper left, the lower left, the upper right and the lower right, and the upper left and the upper right are oppositely disposed, so that, taking the example of forming the protrusions 400 in the sub-arc corners 300, when the flexible display panel 20 is attached, the lower left portion, the upper right portion and the middle portion of the flexible display panel 20 are attached, and finally the upper left portion and the lower right portion are attached, so that the original wrinkles of the lower left portion and the upper right portion can be transferred to the upper left portion and the lower right portion, and after the flexible display panel 20 is attached to the protrusions 400, the flexible display panel 20 does not generate wrinkles. Similarly, in the case where the protrusions 400 are formed in the upper right and lower left sub-arc corner portions 300, the flexible display panel 20 can be similarly formed without wrinkles in the same principle.

In one embodiment, the protrusions 400 are formed on adjacently disposed sub-arc corners 300. As shown in fig. 1, taking the forming of the protrusion 400 in the upper left and lower left sub-arc corners 300 as an example, when the flexible display panel 20 is attached, the upper right portion, the lower right portion and the middle portion of the flexible display panel 20 are attached, and finally the upper left portion and the lower left portion are attached, so that the original wrinkles of the upper right portion and the lower right portion can be transferred to the upper left portion and the lower left portion, and after the flexible display panel 20 is attached to the protrusion 400, the wrinkles are not generated in the flexible display panel 20. Similarly, in the case of forming the protrusions 400 in the upper right and lower right sub-arc corner portions 300, the flexible display panel 20 may be similarly formed without wrinkles in the same principle.

In one embodiment, there are three sub-arc corners 300 having protrusions 400 formed therein. At this time, the portion of the flexible display panel 20 corresponding to the flat portion 100, the arc portion, and the sub-arc corner 300 where the protrusion 400 is not formed may be attached to the cover plate, and then the other three portions may be attached, so that the original wrinkles of the portion where the protrusion 400 is disposed may be transferred to the other three portions, and after the portion is attached to the protrusion 400, the flexible display panel 20 may not generate wrinkles.

In one embodiment, a plurality of sub-arc corners 300 each have a protrusion 400 formed therein. During the attaching process, the portion of the flexible display panel 20 corresponding to the planar portion 100 and the portion corresponding to the arc surface portion are attached to the cover plate, and then the portions corresponding to the plurality of sub-arc corners 300 are attached, so that the originally generated wrinkles at the plurality of sub-arc corners 300 are offset from the protrusions 400, and finally no wrinkles are generated in the flexible display panel 20.

According to the invention, the bulge is formed on at least one sub-arc corner, when the flexible display panel 20 is attached to the cover plate 10 subsequently, the contact area between the sub-arc corner and the flexible display panel 20 is increased, so that the flexible display panel 20 can be attached to the bulge, the phenomenon that the flexible display panel 20 is folded at a plurality of corners is improved, and the attaching effect is better.

The invention also provides a display device, which comprises a cover plate and a flexible display panel, wherein the cover plate comprises a plane part, an arc surface part and an arc corner part, the plane part comprises a plurality of edges and a plurality of corners connected with the edges, the arc surface part comprises a plurality of sub-arc surface parts, the sub-arc surface parts are respectively connected with the edges of the plane part and are bent into an arc surface towards one side surface of the plane part, the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner parts are connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corners, and an accommodating cavity is enclosed by the plane part, the arc surface part and the arc corner parts, wherein at least one of the sub-arc corner parts is provided with a bulge in the accommodating cavity. The flexible display panel 20 is disposed in the accommodating cavity and attached to the planar portion, the arc portion and the arc corner portion.

The following description will be made in detail with reference to fig. 1 to 3.

The flexible display panel 20 in the present invention may be a flexible liquid crystal display panel or a flexible OLED display panel. The cover plate 10 is usually a transparent cover plate, and may be formed of glass (glass), polymethyl methacrylate (PMMA), Polycarbonate (PC), and the like, and the material of the cover plate is not limited in the present invention.

The planar portion 100 is generally rectangular in configuration, but may have other shapes, including a plurality of sides connected to one another and a plurality of corners connected to the plurality of sides. In this embodiment, taking a rectangle as an example, each side includes a straight line portion and an arc portion, and the plurality of corners may be arc corners, where the arc portions of two adjacent sides enclose an arc corner.

The arc part comprises a plurality of sub-arc parts 200, each sub-arc part 200 is respectively connected with one side of the plane part and is bent into an arc surface towards one side surface of the plane part 100, the bending angle is usually 90 degrees, certainly, the bending angle can be smaller than 90 degrees, and the sub-arc parts can be specifically arranged as required. In the present embodiment, the side to which the sub-arc portions 200 are connected is a straight portion of each side in the planar portion 100, not a bent portion, and therefore, the sub-arc portions 200 are not connected to each other.

The arc corner portion includes a plurality of sub-arc corner portions 300, and each sub-arc corner portion 300 is connected to one corner of the planar portion 100 and two adjacent sub-arc surface portions 200 corresponding to the corner. The sub-arc corner 300 is connected to a corner of the planar portion 100, that is, to two arc edges forming the corner, and is further connected to two adjacent sub-arc portions 200 at two sides of the corner, so that the two adjacent sub-arc portions 200 are connected. The plurality of sub-arc portions 300 connects the plurality of sub-arc portions 200 to each other.

The planar portion 100, the arc portion and the arc corner portion are connected to form an accommodating cavity. Within the receiving cavity, at least one of the sub-arc corners 300 has a protrusion formed therein.

In the prior art, after the cover plate is manufactured, the cover plate is attached to the flexible display panel 20, in order to realize multi-surface curved display of the flexible display panel 20, the flexible display panel 20 is attached to the plane portion 100, and is also attached to the plurality of sub-arc surface portions 200 and the plurality of sub-arc corner portions 300, and the portion on the plane portion 100 and the portions on the arc surface portions and the arc corner portions need to be displayed after the attachment.

When the flexible display panel 20 is attached to the flat surface portion 100 and the arc surface portion, the flexible display panel can be smoothly attached to the flat surface portion 100, however, when the flexible display panel is attached to the sub-arc corner portion 300, since the connection surface between the sub-arc corner portion 300 and the flat surface portion 100 is a curved surface and the connection surface between the sub-arc corner portion 300 and the adjacent sub-arc surface portion 200 is also a curved surface, the sub-arc corner portion 300 has a structure in which three surfaces are curved surfaces, and the flexible display panel 20 cannot be completely unfolded and attached to the flat surface when attached to the area, so that wrinkles may occur at the sub-. When the display is needed subsequently, the display effect in the area is not good, and the real multi-surface display is difficult to realize.

With the cover plate of the present invention, since the protrusion 400 is formed at the sub-arc corner 300, which is equivalent to increase the contact area of the sub-arc corner 300, when the subsequent flexible display panel 20 is attached to the sub-arc corner 300, the portion of the flexible display panel 20 that will originally wrinkle will be attached to the protrusion 400, so that the whole flexible display panel 20 presents a smooth attachment state, no wrinkle will be generated, the display effect of the flexible display panel 20 is improved, and real multi-surface display is achieved.

In one embodiment, the protrusion 400 is integrally formed with the sub-arc corner 300. The protrusions 400 may be formed on the large plate at positions corresponding to the positions where the sub-arc corners 300 are subsequently formed, and then the large plate may be subjected to a hot pressing process to form the cover plate. Alternatively, the cover plate may be formed by hot pressing the large plate, and the protrusion 400 may be formed at a position corresponding to the sub-arc 300. The protrusion 400 can be formed in different ways according to different manufacturing processes and different processing requirements of the cover plates.

In one embodiment, the protrusion 400 is formed separately from the sub-arc corner 300. After the cover plate is manufactured, the size and the shape of the needed bulge 400 are calculated according to the parameters of the flexible display panel 20 to be attached subsequently, the specific specification and the size are determined through simulation, the bulge 400 is manufactured separately, then the bulge 400 and the flexible display panel 20 are fixed together, and then the flexible display panel 20 is attached. Since the protrusions 400 and the sub-arc corners 300 are formed independently, when the same cover plate corresponds to different types of flexible display panels 20, the sizes and shapes of the protrusions 400 are different, so that different protrusions 400 can be selected to be fixed at corresponding positions of the sub-arc corners 300 according to different flexible display panels 20. Therefore, the existing cover plate manufacturing equipment does not need to be changed, and only the corresponding bulge 400 needs to be additionally manufactured and then fixed. The independently formed protrusion 400 and the cover plate may be made of the same or different materials, and may be fixed to the sub-arc corner 300 of the cover plate by means of bonding, welding, or the like.

The convex surface 401 of the protrusion 400 may be arc-shaped or wave-shaped, the area of the convex surface 401 of the protrusion 400 is increased relative to the area of the sub-arc corner 300, and the flexible display panel 20 is attached to the convex surface 401 of the protrusion 400, so that the area of the flexible display panel 20 which is larger than the area of the sub-arc corner 300 is supported by the convex surface 401 of the protrusion 400, and thus no wrinkle is generated. Of course, the convex surface 401 of the protrusion 400 may have other regular or irregular shapes, which can be determined according to the simulation result.

In one embodiment, the number of projections 400 in the sub-arc corner 300 formed with projections is one or more. When the number of the protrusions 400 is one, the convex surface may be an arc shape or a wave shape, and when the number of the protrusions 400 is plural, the convex surface may be an arc shape, and the plurality of protrusions 400 may be arranged in a row, or may be distributed in an array in the sub-arc corner 300. The larger the number of the protrusions 400, the larger the contact area is, the smaller the tendency of generating wrinkles is, but it should be noted that the number of the protrusions 400 is not too large, so as to prevent the contact area from being too large, and the phenomenon that the area of the flexible display panel 20 is not enough to be attached exists in a partial region between the flexible display panel 20 and the cover plate. Therefore, when the number of the protrusions 400 is plural, the size, shape, position, number, etc. of the protrusions 400 need to be set reasonably according to the parameters of the flexible display panel 20 to be attached. The protrusions 400 may be equal in size or unequal in size, may be arranged at equal intervals, or may be arranged at unequal intervals.

In the cover plate of the present invention, the protrusion 400 is formed in at least one of the sub-arc corners 300, and there are various ways of disposing the protrusion 400.

In an embodiment, the protrusion 400 is formed in only one of the sub-arc corner portions 300, and any one of the sub-arc corner portions 300 may be selected to be formed. When the flexible display panel 20 is attached to the cover plate, other portions are attached first, and finally, a portion corresponding to the sub-arc corner 300 where the protrusion 400 is formed is attached, so that the original wrinkles of other portions are transferred to the portion, and after the flexible display panel 20 is attached to the protrusion 400, the flexible display panel 20 does not generate wrinkles.

In one embodiment, there are two sub-arc corners 300 having the protrusions 400 formed therein, and in this case, the protrusions 400 are disposed in two ways.

In one embodiment, the protrusions 400 are formed on the oppositely disposed sub-arc corners 300. As shown in fig. 1, the sub-arc corners 300 are respectively located at a plurality of positions, namely, the upper left, the lower left, the upper right and the lower right, and the upper left and the upper right are oppositely disposed, so that, taking the example of forming the protrusions 400 in the sub-arc corners 300, when the flexible display panel 20 is attached, the lower left portion, the upper right portion and the middle portion of the flexible display panel 20 are attached, and finally the upper left portion and the lower right portion are attached, so that the original wrinkles of the lower left portion and the upper right portion can be transferred to the upper left portion and the lower right portion, and after the flexible display panel 20 is attached to the protrusions 400, the flexible display panel 20 does not generate wrinkles. Similarly, in the case where the protrusions 400 are formed in the upper right and lower left sub-arc corner portions 300, the flexible display panel 20 can be similarly formed without wrinkles in the same principle.

In one embodiment, the protrusions 400 are formed on adjacently disposed sub-arc corners 300. As shown in fig. 1, taking the forming of the protrusion 400 in the upper left and lower left sub-arc corners 300 as an example, when the flexible display panel 20 is attached, the upper right portion, the lower right portion and the middle portion of the flexible display panel 20 are attached, and finally the upper left portion and the lower left portion are attached, so that the original wrinkles of the upper right portion and the lower right portion can be transferred to the upper left portion and the lower left portion, and after the flexible display panel 20 is attached to the protrusion 400, the wrinkles are not generated in the flexible display panel 20. Similarly, in the case of forming the protrusions 400 in the upper right and lower right sub-arc corner portions 300, the flexible display panel 20 may be similarly formed without wrinkles in the same principle.

In one embodiment, there are three sub-arc corners 300 having protrusions 400 formed therein. At this time, the portion of the flexible display panel 20 corresponding to the flat portion 100, the arc portion, and the sub-arc corner 300 where the protrusion 400 is not formed may be attached to the cover plate, and then the other three portions may be attached, so that the original wrinkles of the portion where the protrusion 400 is disposed may be transferred to the other three portions, and after the portion is attached to the protrusion 400, the flexible display panel 20 may not generate wrinkles.

In one embodiment, a plurality of sub-arc corners 300 each have a protrusion 400 formed therein. During the attaching process, the portion of the flexible display panel 20 corresponding to the planar portion 100 and the portion corresponding to the arc surface portion are attached to the cover plate, and then the portions corresponding to the plurality of sub-arc corners 300 are attached, so that the originally generated wrinkles at the plurality of sub-arc corners 300 are offset from the protrusions 400, and finally no wrinkles are generated in the flexible display panel 20.

According to the invention, the bulge is formed on at least one sub-arc corner, when the flexible display panel 20 is attached to the cover plate, the contact area between the sub-arc corner and the flexible display panel 20 is increased, so that the flexible display panel 20 can be attached to the bulge, the phenomenon that the flexible display panel 20 is folded at multiple corners is improved, and the attaching effect is better.

The invention provides a cover plate and a display device, wherein the cover plate comprises a plane part, an arc surface part and an arc corner part, and the plane part comprises a plurality of edges and a plurality of corners connected with the edges; the cambered surface part comprises a plurality of sub-cambered surface parts which are respectively connected with a plurality of edges of the plane part and are bent into cambered surfaces towards the surface of one side of the plane part; the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner parts are connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corners, and the plane part, the arc surface parts and the arc corner parts enclose an accommodating cavity; wherein at least one of the plurality of sub-arc corners is formed with a protrusion within the receiving cavity. Through forming the protrusion at least one sub-arc corner, when the following flexible display panel 20 is attached to the cover plate, because the contact area between the sub-arc corner and the flexible display panel 20 is increased, the flexible display panel 20 can be attached to the protrusion, the phenomenon that the flexible display panel 20 generates wrinkles at multiple angles is improved, and the attaching effect is better.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above detailed description is provided for a cover plate and a display device provided in the embodiments of the present application, and specific examples are applied herein to explain the principles and embodiments of the present application, and the above description of the embodiments is only used to help understanding the technical solutions and core ideas of the present application; 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; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. A cover plate, characterized in that the cover plate comprises:

a planar portion including a plurality of sides and a plurality of corners connected to the plurality of sides;

the arc surface part comprises a plurality of sub-arc surface parts, the sub-arc surface parts are respectively connected with a plurality of edges of the plane part, and the sub-arc surface parts are bent into arc surfaces towards one side surface of the plane part;

the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner part is connected with one corner of the plane part and two adjacent sub-arc surface parts corresponding to the corner, and the plane part, the arc surface parts and the arc corner parts enclose an accommodating cavity;

wherein at least one of the plurality of sub-arc corners has a protrusion formed within the receiving cavity.

2. The decking of claim 1, wherein the projections are integrally formed with the sub-arcuate corners.

3. The decking of claim 1, wherein the projections are formed separately from the sub-arcuate corners.

4. The decking of claim 3, wherein the projections are of the same material as the decking.

5. The decking of claim 1, wherein the convex surfaces of the projections are arcuate or wavy.

6. The decking of claim 1, wherein the projections are one or more in number in the sub-arc corners formed with the projections.

7. The decking of claim 6, wherein the projections are of equal size.

8. The decking of claim 1, wherein the projections are formed on oppositely disposed sub-arcuate corners.

9. The decking of claim 1, wherein the projections are formed on adjacently disposed sub-arcuate corners.

10. A display device, comprising:

the cover plate comprises a flat surface part, an arc surface part and an arc corner part, wherein the flat surface part comprises a plurality of edges and a plurality of corners connected with the edges, the arc surface part comprises a plurality of sub-arc surface parts, the sub-arc surface parts are respectively connected with the edges of the flat surface part and are bent into an arc surface towards one side surface of the flat surface part, the arc corner part comprises a plurality of sub-arc corner parts, the sub-arc corner parts are connected with one corner of the flat surface part and two adjacent sub-arc surface parts corresponding to the corners, and the flat surface part, the arc surface part and the arc corner parts enclose a containing cavity, wherein at least one of the sub-arc corner parts is provided with a bulge in the containing cavity;

the flexible display panel sets up hold the intracavity, and with plane portion the arc face portion with the laminating of arc corner portion.

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