CN113242334B - Curved surface screen assembly and mobile terminal - Google Patents
Curved surface screen assembly and mobile terminal Download PDFInfo
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- CN113242334B CN113242334B CN202110365507.7A CN202110365507A CN113242334B CN 113242334 B CN113242334 B CN 113242334B CN 202110365507 A CN202110365507 A CN 202110365507A CN 113242334 B CN113242334 B CN 113242334B
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- curved surface
- screen assembly
- display panel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
Abstract
The application discloses a curved surface screen assembly and a mobile terminal, wherein the curved surface screen assembly comprises a display panel, a light guide structure and a cover plate, the display panel comprises a plane part and a curved surface part connected with the plane part, the curved surface part is provided with a notch, the light guide structure is arranged at the notch, the light guide structure is used for guiding light rays emitted by the display panel to the notch and emitting the light rays, and the cover plate is covered on the plane part and the curved surface part. According to the embodiment of the application, the notch is arranged on the curved surface part, the light guide structure is arranged at the notch, and the light emitted by the display panel can be guided to the notch and emitted by the light guide structure, so that the problem of poor display caused by incapability of emitting light at the notch can be solved, and meanwhile, the light emitted laterally at the edge of the notch can be changed into a surface light source by the light guide structure, so that the light emitted at the notch is softer and similar to the light emitted at other positions of the curved surface screen assembly, and the appearance expressive force of the curved surface screen assembly with the notch can be improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a curved screen assembly and a mobile terminal.
Background
With the development of technology, the display screen of a mobile terminal (such as a mobile phone, a tablet computer and the like) is changed from a full-plane screen to a partially curved screen. Because the display screen is changed from a plane to a curved surface, the surface area at the curved surface can be partially compressed, so that stress concentration is caused, and further, defects such as wrinkles and cracks are easily generated when the display screen is attached to other parts, and the attaching yield of the display screen is affected.
Disclosure of Invention
The embodiment of the application discloses a curved surface screen assembly and a mobile terminal, which can effectively relieve stress concentration conditions of a display screen during bonding and improve bonding yield of the display screen.
To achieve the above object, in a first aspect, an embodiment of the present application discloses a curved screen assembly, which includes
The display panel comprises a plane part and a curved surface part connected with the plane part, and the curved surface part is provided with a notch;
the light guide structure is arranged at the notch and used for guiding light rays emitted by the display panel to the notch and emitting the light rays; and
and the cover plate is covered on the plane part and the curved surface part.
In a second aspect, an embodiment of the present application further discloses a mobile terminal, where the mobile terminal includes the curved screen assembly according to the first aspect.
Compared with the prior art, the application has the beneficial effects that:
in the curved surface screen assembly and the mobile terminal disclosed by the embodiment of the application, the notch is arranged on the curved surface part of the display panel, and the curved surface part is broken by utilizing the notch, so that the adverse problems of wrinkling, cracking and the like during bonding caused by stress concentration in the curved surface part are avoided, and the bonding yield of the display screen is improved. Meanwhile, the curved surface screen component of the embodiment is further provided with the light guide structure at the notch, so that light emitted by the display panel can be guided to the notch by the light guide structure and emitted, the problem that the notch cannot emit light to cause poor display can be solved, meanwhile, the light emitted laterally at the edge of the notch can be changed into a surface light source by the light guide structure, the light emitted at the notch is softer and similar to the light emitted at other positions of the display panel, and therefore the appearance expressive force of the curved surface screen component with the notch can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structure view of a related art mobile terminal having a curved screen assembly;
FIG. 2 is a graph showing stress distribution at and around corners of a curved panel assembly of the related art when the curved panel assembly is attached;
FIG. 3 is a schematic view of a curved screen assembly according to an embodiment of the present application;
FIG. 4 is a schematic view of another construction of a curved panel assembly according to an embodiment of the present application;
FIG. 5 is a schematic illustration of a notch of a curved panel assembly according to an embodiment of the present application;
fig. 6 is an enlarged view at a of fig. 5;
FIG. 7 is a schematic illustration of another configuration of a notch of a curved panel assembly according to an embodiment of the present application;
FIG. 8 is a schematic view of a stacked configuration of a curved panel assembly according to an embodiment of the present application;
FIG. 9 is a schematic view of another stacked configuration of a curved panel assembly according to an embodiment of the present application;
FIG. 10 is a schematic view of an optical path of a curved panel assembly at a light guiding structure according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the present application, the azimuth or positional relationship indicated by the terms "upper", "lower", "outer", and the like are based on the azimuth or positional relationship shown in the drawings. These terms are only used to better describe the application and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present application will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "disposed," "configured to," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components so indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The inventor finds that, in the related art, for a mobile terminal, taking a mobile phone as an example, as shown in fig. 1, a display screen of the mobile phone adopts a four-curved display screen, and the name of the four-curved display screen refers to: on the basis of the bending of the left and right side screens of the plane screen in the middle, the curved surface screens at the upper end and the lower end are further increased. Compared with a hyperboloid display screen, the four-curve display screen has the advantages that the performance of the screen in aspects of screen occupation ratio and the like is greatly improved. The current four-curved-surface display screen has shallower attaching depth in the four-corner cambered surface area, and almost does not enter into a cambered surface Gaussian angle. As shown in fig. 1 (a), fig. 1 (a) is a schematic diagram of a mobile phone employing a four-curved display screen, and in fig. 1 (a), the four-curved display screen of the mobile phone 1 includes a planar portion 1b and first curved portions 1c, 1d provided on both sides of the planar portion 1b in the width direction, and second curved portions 1e, 1f provided on both ends of the planar portion 1b in the length direction. Fig. 1 (b) shows a schematic structural diagram of a four-curved display screen at its corners, and the dotted line portion in the drawing is the corner of the four-curved display screen.
Further, as shown in fig. 2, (a) and (b) in fig. 2 show the curved gaussian angular positions C of the four-curved display screen, for the four-curved display screen, the gaussian angular positions C are mainly located at four corners of the four-curved display screen, and when the display screen is attached at the positions, the display screen is simultaneously extruded by two right-angle arc edges, so that the display screen of the part is required to have better deformability, so that the larger compressive strain generated by the smaller area of the display screen can be satisfied. As shown in fig. 2 (c), fig. 2 (c) shows a stress distribution diagram of corner positions of the four-curved display screen during bonding, because the nature of the gaussian angle is a 3D sphere, the display screen changes from a plane to a curved surface, the surface area can be partially compressed, especially, the panel layer of the display screen is a whole complete film layer, defects such as wrinkles and cracks easily occur during bonding, and the positions where wrinkles and damages occur most easily are mainly the positions of the corners of the panel layer during bonding. As shown in (C) of fig. 2, the gray portion pointed to by the arrow position (C) of fig. 2 shows that the gaussian angular position C is in a stress concentration state.
Referring to fig. 3 to 4 together, the first aspect of the present application discloses a curved panel assembly 10, wherein the curved panel assembly 10 includes a display panel 11, a light guiding structure 12 and a cover 13 (see fig. 8), the display panel 11 includes a planar portion 11a and a curved portion 11b connected to the planar portion 11a, and the curved portion 11b is provided with a notch 110. The light guiding structure 12 is disposed at the notch 110, and the light guiding structure 12 is used for guiding the light emitted by the display panel 11 to the notch 110 and emitting the light. The cover plate 13 is disposed to cover the flat portion 11a and the curved portion 11b to protect the display panel 11.
In the curved panel assembly 10 disclosed in the embodiment of the present application, the notch 110 is provided on the curved portion 11b of the display panel 11, and the curved portion 11b is broken by using the notch 110, so that the problem that the stress concentration occurs on the curved portion 11b to cause the display panel 11 to have wrinkles, cracks and other defects during the bonding process can be avoided, and the bonding yield of the curved panel assembly 10 can be improved.
Further, a notch 110 is provided in the curved portion 11b of the display panel 11, and there is no way to emit light at the notch 110 due to the presence of the notch 110, which affects not only the display effect of the curved screen assembly 10 but also the external decorative effect of the curved screen assembly 10. Therefore, the light guide structure 12 is further disposed at the notch 110, and the light emitted by the display panel 11 can be guided to the notch 110 and emitted by the light guide structure 12, so that the problem of poor display caused by incapability of emitting light at the notch 110 can be solved, and meanwhile, the light emitted laterally at the edge of the notch 110 can be changed into a surface light source by the light guide structure 12, so that the light emitted at the notch 110 is softer and similar to the light emitted at other positions of the curved screen assembly 10, and the appearance expressive force of the curved screen assembly 10 with the notch 110 can be improved.
It should be understood that the curved screen assembly 10 may be applied to a mobile terminal, for example, a mobile phone or a tablet pc, and the curved screen assembly 10 is in a substantially rectangular shape, and then the planar portion 11a mainly refers to a central display portion of the display panel 11, and the curved portion 11b may refer to an edge display portion of the display panel 11, where the edge display portion is enclosed around an outer periphery of the central display portion.
In some embodiments, as can be seen from the foregoing description, the curved panel assembly 10 can be a four-curved panel assembly, and the curved portion 11b includes two first sub-curved portions 111 located at two sides of the planar portion 11a and two second sub-curved portions 112 located at two ends of the planar portion 11a. Each second sub-curved surface portion 112 is connected between two first sub-curved surface portions 111, and the connection between each first sub-curved surface portion 111 and each second sub-curved surface portion 112 is provided with the notch 110. It can be understood that the connection between each first sub-curved surface portion 111 and each second sub-curved surface portion 112 is the corner position of the display panel 11. For example, as shown in fig. 3 and 4, fig. 3 shows that the notch 110 on the display panel 11 is trapezoidal, fig. 4 shows that the notch 110 on the display panel 11 is triangular, and in fig. 3 and 4, the display panel 11 has four corner positions in each of which the notch 110 is provided. That is, the display panel 11 according to the embodiment of the present application has four notches 110, and the four notches 110 are used to break the connection between the first sub-curved surface portion 111 and the second sub-curved surface portion 112, so that the stress of the display panel 11 at the corner position is released, and the problem of wrinkles and cracks occurring during bonding due to the stress concentration at the corner position of the display panel 11 is avoided.
In some embodiments, the shape of the notch 110 includes at least one of a rectangle, a trapezoid, a triangle, or a sector, as long as the adjacent first sub-curved surface portion 111 and second sub-curved surface portion 112 can be disconnected and can be realized in a process, and the shape of the notch 110 is not particularly limited in this embodiment. As shown in fig. 5, fig. 5 is a schematic view of the notch 110 when the shape is trapezoidal, and the light guiding structure 12 is omitted in fig. 5. As shown in fig. 7, the shape of the notch 110 is a triangle in fig. 7, and the light guide structure 12 is omitted in fig. 7. It should be understood that the shape of the notch 110 in fig. 5 and 7 is merely an example for easy understanding, and does not limit the scope of the present embodiment.
Fig. 6 is an enlarged view at a in fig. 5, with reference to fig. 6, for illustrating the arrangement depth and depth direction of the notch 110 on the display panel 11. Further, the notch 110 has a depth s in a first direction X, which is a direction in which the curved portion extends from the edge of the curved portion 11b of the display panel 11 toward the center of the planar portion 11a of the display panel 11 in the unfolded state, that is, the depth direction of the notch 110 is a direction along the outer edge of the display panel 11 toward the center of the display panel 11, which is less than or equal to 5 mm. In view of the large stress accumulated at the corners of the display panel 11, in order to release the stress, the notch 110 is provided at the corners of the display panel 11, and the depth s of the notch 110 is related to the amount of stress that can be released, and the larger the depth s is, the larger the stress that can be released. However, if the depth s of the notch 110 is too large, the effect on the display of the display panel 11 is also greatly affected, mainly based on that, even if the light guiding structure 12 is provided at the notch 110, only light guiding and light transmission can be achieved, but image imaging cannot be achieved. Therefore, in the present application, the depth s of the notch 110 needs to be considered when the notch 110 is provided, and cannot be too large or too small. According to the application, the depth s of the notch 110 is limited to be larger than or equal to 5mm, and meanwhile, the depth s of the notch 110 is limited to be smaller than or equal to 15mm, so that the depth s of the notch 110 can reduce the occupation of the display area of the display panel 11 as much as possible on the basis of meeting the requirement of releasing the stress at the corners of the display panel 11, and the influence on the display effect of the display panel 11 is reduced.
Further, in the first direction X, the notch 110 has a first notch portion 110a penetrating through an edge of the curved surface portion 11b and a second notch portion 110b communicating with the first notch portion 110a, and a width b2 of the second notch portion 110b is smaller than a width b1 of the first notch portion 110 a. Since the second notch portion 110b is closer to the center of the planar portion 11a than the first notch portion 110a, the width b2 of the second notch portion 110b is as small as possible, so that the influence on the display effect of the display panel 11 can be reduced, while the first notch portion 110a is disposed at the edge of the curved portion 11b, and the width b1 of the first notch portion 110a is set larger for convenience in processing due to the consideration of the processing process of the notch 110. Therefore, the width b2 of the second notch portion 110b is smaller than the width b1 of the first notch portion 110a in the first direction X, so that the influence on the display effect of the display panel 11 can be reduced, and the notch 110 can be conveniently machined, so that machining difficulty is reduced.
It will be appreciated that the notch 110 extends from the edge of the curved portion 11b in the direction of the planar portion 11a, i.e., the first notch portion 110a of the notch 110 is located at the edge of the curved portion 11b, and the second notch portion 110b of the notch 110 may be located at the curved portion 11b or the planar portion 11a, depending on the depth s of the notch 110. For example, assuming that the width of the curved surface portion 11b is 5mm, when the depth s of the notch 110 is 5mm, the depth s of the notch 110 is approximately matched with the width of the curved surface portion 11b, and at this time, the notch 110 is completely disposed on the curved surface portion 11b. When the depth s of the notch 110 is 6mm, the depth of the notch 110 is greater than the width of the curved surface portion 11b, and the first notch portion 110a of the notch 110 is disposed on the curved surface portion 11b, and the second notch portion 110b extends from the curved surface portion 11b to the planar portion 11a. It can be seen that the notch 110 is disposed on the curved surface portion 11b or extends from the curved surface portion 11b to the planar portion 11a, and this embodiment is not limited thereto specifically, depending on the width of the curved surface portion 11b and the depth of the notch 110.
In some embodiments, the display panel 11 may be an OLED (Organic Light-Emitting Diode) display panel 11, so that the display panel 11 may have self-luminescence property, and the Light guiding structure 12 may conduct the Light emitted by the display panel 11 to the notch 110 to achieve the luminescence at the notch 110. Of course, the display panel 11 may be an LCD (liquid crystal display) panel, and in this case, the display panel 11 may further include a liquid crystal layer.
Referring to fig. 8 and 9, it can be seen from the foregoing that the light guiding structure 12 of the curved panel assembly 10 of the present embodiment can be disposed at the notch 110. In an alternative example, as shown in fig. 8, fig. 8 illustrates a stacked configuration of the curved panel assembly 10 in which the light guiding structure 12 may be embedded in the notch 110 such that the notch 110 may be covered by the light guiding structure 12. In this example, the shape and size of the light guiding structure 12 may be approximately matched to the shape and size of the notch 110, so that the notch 110 may be covered by the light guiding structure 12, so that the light guiding structure 12 may conduct the light emitted from the display panel 11 to the notch 110, thereby achieving the light emission at the notch 110.
Further, when the light guiding structure 12 is embedded in the notch 110, the first optical adhesive 14 can be disposed at the gap between the light guiding structure 12 and the notch 110, and the first optical adhesive 14 not only can realize the fixed connection between the light guiding structure 12 and the notch 110 and prevent the light guiding structure 12 from separating from the notch 110, but also can cover the gap between the light guiding structure 12 and the notch 110, and meanwhile has a light transmitting function, so that the light transmission of the notch 110 is not affected. Alternatively, the first optical cement 14 may be, but is not limited to, OCA (Optically Clear Adhesive, optical cement) or OCR (Optical Clear Resin, liquid optical cement).
In this embodiment, the curved screen assembly 10 further includes a heat dissipation layer 16, the heat dissipation layer 16 may be disposed on the first side 11c of the display panel 11, and the heat dissipation layer 16 is used to implement the heat dissipation function of the display panel 11.
By embedding the light guide structure 12 in the notch 110, the notch 110 can be covered by the light guide structure 12, so that light guide can be realized, the whole structure of the curved panel assembly 10 is not affected, and the occupation of the light guide structure 12 to the inner space of the curved panel assembly 10 is reduced.
Referring to fig. 9, in another alternative example, the light guiding structure 12 may be disposed at least on the curved portion 11b and corresponding to the notch 110, that is, the light guiding structure 12 is not embedded in the notch 110. Specifically, as shown in fig. 9, fig. 9 shows another laminated structure of the curved panel assembly 10, the display panel 11 may include a first side 11c and a second side 11d opposite to each other, the light guiding structure 12 may be disposed at least on the curved portion 11b and corresponding to the notch 110, the light guiding structure 12 is disposed on the first side 11c, and the cover 13 is disposed on the second side 11d. The second side 11d of the display panel 11 may be a display side facing the user, and the first side 11c may be an inner side of the display panel 11, i.e. the first side 11c is a non-display side.
By arranging the light guide structure 12 on the first side 11c of the display panel 11, the alignment and arrangement of the light guide structure 12 and the notch 110 can be facilitated, and the difficulty in arranging the light guide structure 12 on the display panel 11 can be reduced.
It is understood that the light guiding structure 12 may be disposed at least on the curved portion 11b, including: the light guiding structure 12 may be attached to the curved portion 11b, or the light guiding structure 12 may be attached to the curved portion 11b at one portion and attached to the planar portion 11a at another portion. It should be noted that, whether the light guiding structure 12 is completely attached to the curved surface portion 11b or the light guiding structure 12 is partially attached to the curved surface portion 11b and the other portion is attached to the planar portion 11a, the light guiding structure 12 should be disposed corresponding to the notch 110 and the light guiding structure 12 completely covers the notch 110.
Alternatively, when the light guiding structure 12 is disposed on the first side 11c, the light guiding structure 12 may be adhered to the first side 11c by an adhesive, so as to prevent the light guiding structure 12 from being detached from the first side 11 c.
In some embodiments, the light guiding structure 12 may include at least one of a light guiding plate, a light guiding sheet or a light guiding film, and the material may be PC (Polycarbonate) or PMMA (polymethyl methacrylate ). The light guide structure 12 adopts at least one mode of a light guide plate, a light guide sheet or a light guide film, and the light guide mode mainly comprises that the point light sources are subjected to diffuse reflection through the mesh points arranged at the bottom of the light guide structure, so that the point light sources emitted by the display panel 11 from the edge of the notch 110 can be converted into the surface light sources through the light guide structure 12, the point light sources can be converted into the surface light sources through the light guide structure 12, when a user observes from the front, the light emitting color at the notch 110 is close to the display color at other positions of the display panel 11, the appearance defect caused by the fact that the display cannot be carried out due to the arrangement of the notch 110 is effectively overcome, the influence on the display effect of the display panel 11 is reduced, and the aim of improving the appearance expressive force of the display panel 11 can be fulfilled, as shown in fig. 10, and fig. 10 is a schematic light path diagram that the light guide structure 12 guides light to the notch 110 and the user observes the light guide structure 12 through eyes.
Alternatively, the light guiding structure 12 may be a flexible light guiding structure, such that the light guiding structure 12 can be adapted to fit the curved portion 11b to facilitate the fitting of the light guiding structure 12. In view of the application of the curved screen assembly 10 of the present embodiment to a mobile terminal, in order to meet the requirements of light and thin design and miniaturization design of the mobile terminal, the light guiding structure 12 may include a light guiding film, where the overall thickness of the light guiding film is thinner, so that the curved screen assembly 10 is thinner, and the light guiding film is a flexible light guiding film, so that the curved portion 11b can be deformed to be attached to the curved portion 11b.
Further, the shape of the light guiding structure 12 is adapted to the shape of the notch 110, and the distance h from the outer edge of the light guiding structure 12 to the outer edge corresponding to the notch 110 is greater than or equal to 0.2mm. For example, taking the shape of the notch 110 as a trapezoid, the light guiding structure 12 may be a trapezoid light guiding film, and the distance h from the outer edge of the light guiding structure 12 to the outer edge corresponding to the notch 110 is greater than or equal to 0.2mm, so that the light guiding structure 12 can be disposed to completely correspond to and cover the notch 110, and effectively cover the fitting tolerance of the curved surface portion 11b when the light guiding structure 12 is fitted. Illustratively, the distance h from the outer edge of the light guiding structure 12 to the outer edge corresponding to the notch 110 may be 0.2mm, 0.3mm, 0.4mm, 0.5mm, or the like.
It should be noted that, the distance h from the outer edge of the light guiding structure 12 to the outer edge corresponding to the notch 110 may be less than or equal to 1mm, so that the area of the light guiding structure 12 can be reduced and the occupation of the light guiding structure 12 to the inner space of the display panel 11 can be reduced on the basis of meeting the requirement of covering the notch 110 on the whole surface of the light guiding structure 12.
In some embodiments, the curved panel assembly 10 further includes a second optical adhesive 15, where the second optical adhesive 15 can be filled in the gap 110 to fill the gap 110, so that the second optical adhesive 15 can not only seal the gap 110, but also be used to adhere the light guiding structure 12 to the curved portion 11b, so that no additional adhesive component is needed to adhere the light guiding structure 12, and the adhesion manner is simpler and can reduce the use of materials.
Alternatively, the second optical cement 15 may include, but is not limited to, OCA (Optically Clear Adhesive, optical cement) or OCR (Optical Clear Resin, liquid optical cement).
In some embodiments, the display panel 11 may include a panel layer 113 and a polarizer layer 114 stacked on the panel layer 113, the cover plate 13 may be disposed on the polarizer layer 114, and the light guiding structure 12 may be disposed on the panel layer 113. In other words, the polarizer layer 114 is located on the second side 11d of the display panel 11, and the panel layer 113 is located on the second side 11d of the display panel 11. Since the panel layer 113 is mainly a layer where the light emitting structure of the display panel 11 is located, the light guiding structure 12 is disposed on the panel layer 113 and can guide the light emitted by the light emitting structure to the notch 110, and then the light is transmitted through the cover plate 13 covering over the notch 110.
Further, in order to reduce the occupation of the light guiding structure 12 on the internal space of the display panel 11 and the influence on other components, the curved panel assembly 10 further includes a heat dissipation layer 16, the heat dissipation layer 16 may be disposed on a side of the panel layer 113 away from the polarizer layer 114, and a space-avoiding recess 160 is disposed at a position of the heat dissipation layer 16 corresponding to the light guiding structure 12. Specifically, the thickness of the heat dissipation layer 16 is greater than the thickness of the light guiding structure 12, so that the hollow recess 160 can be formed on the heat dissipation layer 16 to store the light guiding structure 12 in the hollow recess 160, and thus, even if the light guiding structure 12 is disposed inside the display panel 11, the light guiding structure 12 does not occupy the internal space of the display panel 11, and thus, the influence on other components inside the display panel 11 can be reduced.
Alternatively, the clearance recess 160 may include a clearance groove or a clearance hole. For example, as shown in fig. 7, fig. 7 shows that the hollow recess 160 is a hollow recess, the shape of the hollow recess may be approximately matched with the light guiding structure 12, the size of the hollow recess may be slightly larger than the light guiding structure 12, and the depth of the hollow recess may be slightly larger than the thickness of the light guiding structure 12, so that the light guiding structure 12 may be hidden in the hollow recess. It is understood that in other embodiments, the hollow recess 160 may be a hollow hole, and the shape, size, and depth of the hollow hole may be set according to the shape, size, and thickness of the light guiding structure 12, which is not specifically limited in this embodiment.
In some embodiments, the display panel 11 further includes a back adhesive 115, the back adhesive 115 is attached to a side of the panel layer 113 facing away from the polarizer layer 114, and the light guiding structure 12 is attached to the back adhesive 115. In practical arrangement, the heat dissipation layer 16 and the light guiding structure 12 can be adhered to the panel layer 113 through the back adhesive 115, so that the heat dissipation layer 16 and the light guiding structure 12 are arranged on the panel layer 113, and adhesion of the heat dissipation layer 16 and the light guiding structure 12 is facilitated.
In some embodiments, the cover 13 may include a glass cover 13 or a plastic cover 13, and the cover 13 may be a light-transmitting cover 13, where the cover 13 covers the flat portion 11a and the curved portion 11b of the display panel 11, so as to cover the notch 110 and protect the display panel 11, and not affect the light transmission of the display panel 11.
Further, as can be seen from the foregoing, the second optical adhesive 15 is filled in the gap 110, and the cover plate 13 is covered on the polarizer layer 114, so that the cover plate 13 can be adhered on the polarizer layer 114 through the second optical adhesive 15, and thus, the adhesion of the cover plate 13 can be achieved by using the second optical adhesive 15, and meanwhile, no additional adhesive is needed to be provided to adhere the cover plate 13.
According to the curved screen assembly 10 of the first aspect of the present application, the curved screen assembly 10 is a four-curved screen assembly, and the notches 110 are disposed at four corners of the display panel 11 of the curved screen assembly 10, so that the problem of stress concentration at the corners of the four-curved screen assembly can be alleviated by using the notches 110. Meanwhile, by arranging the light guide structure 12 at the notch 110, the light emitted by the display panel 11 is guided to the notch 110 by the light guide structure 12 and is emitted, so that the problem that the notch 110 cannot emit light to cause poor display can be solved, and meanwhile, the light emitted laterally at the edge of the notch 110 can be changed into a surface light source by the light guide structure 12, so that the light emitted at the notch 110 is softer and is similar to the light emitted at other positions of the display panel 11, and the appearance expressive force of the curved screen assembly 10 with the notch 110 can be improved.
Referring to fig. 11, a second aspect of the present application discloses a mobile terminal 100, where the mobile terminal 100 includes a housing 20 and a curved screen assembly 10 according to the first aspect, the housing 20 may form an accommodating space 20a with an opening, and the curved screen assembly 10 may be accommodated in the accommodating space 20a and fully or partially cover the opening of the housing 20.
It is understood that the mobile terminal 100 may include, but is not limited to, a mobile terminal 100 such as a cell phone, tablet computer, smart watch, etc. Taking a mobile phone as an example, the curved screen assembly 10 can be used as a display screen of the mobile phone, so that the mobile phone can make up the problem that poor display is caused by incapability of emitting light when the notch 110 is arranged at the corner of the curved screen assembly 10 through the arrangement of the curved screen assembly 10, meanwhile, the light emitted at the notch 110 can be softer by utilizing the light guiding function of the light guiding structure 12, and the appearance expressive force of the curved screen assembly 10 with the notch 110 can be effectively improved by being similar to the light emitted at other positions of the display panel 11.
It should be noted that, the mobile terminal 100 includes other necessary structures or components of the mobile terminal 100 besides the curved screen assembly 10 described above, for example, a camera disposed in the housing 20, a touch module disposed in the housing 20, a battery, an audio module, and other necessary structures or components.
The curved screen assembly and the mobile terminal disclosed in the embodiments of the present application are described in detail, and specific examples are applied to illustrate the principles and embodiments of the present application, and the description of the above embodiments is only used to help understand the curved screen assembly, the mobile terminal and the core ideas thereof; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present application, the present disclosure should not be construed as limiting the present application in summary.
Claims (10)
1. A curved screen assembly, the curved screen assembly comprising:
the display panel comprises a plane part and a curved surface part connected with the plane part, and the curved surface part is provided with a notch;
the light guide structure is arranged at the notch and used for guiding light rays emitted by the display panel to the notch and emitting the light rays; and
the cover plate is covered on the plane part and the curved surface part;
the curved surface part comprises two first sub-curved surface parts positioned at two sides of the plane part and two second sub-curved surface parts positioned at two ends of the plane part, each second sub-curved surface part is connected between the two first sub-curved surface parts, and the connection part of each first sub-curved surface part and each second sub-curved surface part is provided with the notch;
the display panel comprises a first side and a second side which are opposite to each other, the light guide structure is at least arranged on the curved surface part and corresponds to the notch, the light guide structure is positioned on the first side and outside the notch, and the cover plate is positioned on the second side;
the display panel comprises a panel layer and a polaroid layer overlapped on the panel layer, the cover plate is covered on the polaroid layer, and the light guide structure is arranged on the panel layer;
the curved surface screen assembly further comprises second optical glue, the second optical glue is filled in the notch to fill the notch, and the cover plate is adhered to the polaroid layer through the second optical glue.
2. The curved screen assembly of claim 1, wherein the light guide structure has a shape that matches the shape of the notch, and a distance between an outer edge of the light guide structure and an outer edge corresponding to the notch is greater than or equal to 0.2mm.
3. The curved screen assembly of claim 1, further comprising a heat dissipation layer disposed on a side of the panel layer facing away from the polarizer layer, wherein the heat dissipation layer has a void recess corresponding to the light guiding structure.
4. The curved screen assembly of any of claims 1-3, wherein the light guide structure comprises at least one of a light guide plate, a light guide sheet, or a light guide film.
5. A curved screen assembly as claimed in any one of claims 1 to 3, wherein the gap has a depth s in a first direction, the depth s being less than or equal to 5mm, the first direction being a direction extending from an edge of the curved portion to the planar portion.
6. The curved screen assembly of claim 5, wherein in the first direction, the notch has a first notch portion extending through an edge of the curved portion and a second notch portion in communication with the first notch portion, the second notch portion having a width that is less than a width of the first notch portion.
7. The curved screen assembly of claim 5, wherein the shape of the notch comprises at least one of rectangular, trapezoidal, triangular, and scalloped.
8. A curved screen assembly as claimed in any one of claims 1 to 3, wherein the display panel is an OLED display panel.
9. The curved screen assembly of any of claims 1-3, wherein the cover plate comprises a glass cover plate or a plastic cover plate.
10. A mobile terminal comprising a curved screen assembly as claimed in any one of claims 1 to 9.
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| CN202110365507.7A CN113242334B (en) | 2021-04-02 | 2021-04-02 | Curved surface screen assembly and mobile terminal |
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| CN202110365507.7A CN113242334B (en) | 2021-04-02 | 2021-04-02 | Curved surface screen assembly and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113963626B (en) * | 2021-10-28 | 2023-06-06 | 武汉天马微电子有限公司 | Auxiliary laminating film and laminating device |
| CN114973971A (en) * | 2022-06-28 | 2022-08-30 | 武汉华星光电半导体显示技术有限公司 | Display screen, manufacturing method thereof and wearable device |
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