Display device and manufacturing method thereof

Abstract

The present application provides a display device and a method for manufacturing the same. The display device includes a display panel, a cover plate, and a reflective layer. The display panel includes a main display portion, a bent portion, and an extension portion connected in sequence, with the main display portion and the extension portion being arranged opposite and stacked. The cover plate is located on the side of the main display portion facing away from the extension portion, and the orthographic projections of the main display portion and the bent portion on the cover plate are located within the cover plate. The reflective layer is used to reflect light emitted from the side of the bent portion closer to the cover plate back to the cover plate. By providing the reflective layer, light obliquely emitted from the bent portion onto the reflective layer is reflected toward the cover plate, reducing light loss, increasing the brightness of the display device edge area corresponding to the bent portion, improving the display effect, and achieving a narrow frame.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device and a manufacturing method thereof. Background Art

[0002] Existing display devices use a display area bending process and have a curved display portion, wherein the bent portion has a certain curvature, so that the light is transformed from the original vertical upward direction to the side light. At this time, the light emitting direction forms an acute angle with the cover plate, so the light flows out from the side, resulting in a sudden drop in display brightness at the edge of the display device, which in turn causes an abnormal display image. Summary of the Invention

[0003] The present application provides a display device and a manufacturing method thereof, so as to reduce the sudden drop in display brightness at the edge of the display device corresponding to the bent portion and achieve a narrow frame.

[0004] In order to solve the above technical problems, a technical solution adopted in this application is: providing a display device, including a display panel, a cover plate and a reflective layer, wherein the display panel includes a main display part, a bending part and an extension part connected in sequence, and the main display part and the extension part are opposite to each other and stacked; the cover plate is located on the side of the main display part away from the extension part, and the orthographic projections of the main display part and the bending part on the cover plate are located inside the cover plate; the reflective layer is used to reflect light emitted from the side of the bending part close to the cover plate to the cover plate.

[0005] Optionally, the display device further includes:

[0006] The filling layer is located between the cover plate and the bent portion; wherein the reflective layer is located on the surface of the filling layer facing away from the main display portion;

[0007] Optionally, a surface of the filling layer facing away from the main display portion is flush with the top of the bending arc of the bending portion;

[0008] Optionally, the surface of the filling layer on a side facing away from the main display portion is flat;

[0009] Optionally, the filling layer is a filling glue.

[0010] Optionally, the filling layer includes at least one of UV curing glue, organic silicone glue and epoxy glue.

[0011] Optionally, a surface of the filling layer facing away from the main display portion is provided with a plurality of light absorbing portions spaced apart in the first direction and extending in the second direction; the reflective layer covers the gaps between the light absorbing portions;

[0012] Optionally, the first direction is perpendicular to the display surface of the main display portion;

[0013] Optionally, the second direction is parallel to the display surface of the main display portion.

[0014] Optionally, the display device further comprises: a second adhesive layer located between the main display portion and the cover plate, and the filling layer is connected to the second adhesive layer;

[0015] Optionally, in the first direction, the thickness of the second adhesive layer is greater than or equal to 25 μm; the first direction is perpendicular to the display surface of the main display part;

[0016] The minimum thickness of the filling layer is greater than or equal to the thickness of the second adhesive layer.

[0017] Optionally, the angle between the reflective surface of the reflective layer and the first direction is greater than or equal to 0° and less than or equal to 15°, and the first direction is perpendicular to the display surface of the main display part.

[0018] Optionally, the cover plate includes a first portion and a second portion connected in sequence, the orthographic projection of the bent portion on the cover plate is located within the first portion, and the orthographic projection of the main display portion on the cover plate is located within the second portion; the first portion has a lens function;

[0019] Optionally, the thickness of the first part gradually decreases in the direction away from the second part, and in the direction away from the bending portion, the surface of the first part facing the bending portion is concave, and the surface of the first part away from the bending portion is convex.

[0020] Optionally, the reflective layer includes at least one of a magnesium-silver alloy reflective layer and a glass bead reflective layer.

[0021] Optionally, the bent portion corresponds to a status display area of the display device, and the status display area is used to display at least one of battery level, signal strength, network connection status, Bluetooth connection status, time, alarm status, ringing mode, application information and operator information.

[0022] To solve the above technical problems, another technical solution adopted by the present application is to provide a method for manufacturing a display device, wherein a display panel is provided on one side of a cover plate; wherein the display panel includes a main display portion, a bent portion, and an extended portion connected in sequence, the main display portion and the extended portion being opposite and stacked, the cover plate being located on a side of the main display portion facing away from the extended portion, and the orthographic projections of the main display portion and the bent portion on the cover plate being located within the cover plate;

[0023] A reflective layer is formed; the reflective layer is located on the surface of the filling layer away from the main display portion, and is used to reflect light emitted from the side of the bent portion close to the cover plate to the cover plate.

[0024] Optionally, before forming the reflective layer, the method further includes:

[0025] A filling layer is formed between the cover plate and the bent portion, and the reflective layer is located on a surface of the filling layer that is away from the main display portion.

[0026] Different from the existing technology, the reflective layer in this application is designed so that the light originally emitted laterally from the bent part will be reflected toward the cover plate, reducing the loss of light efficiency, thereby increasing the brightness of the edge area of the display device corresponding to the bent part, reducing or even eliminating the discoloration and failure problems in the edge area, and achieving a narrow frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0028] Figure 1 It is a structural diagram of a display device in the related art;

[0029] Figure 2 This is a schematic structural diagram of an embodiment of a display device in this application;

[0030] Figure 3 This is a schematic structural diagram of another embodiment of the display device in this application;

[0031] Figure 4 for Figure 3 A schematic structural diagram of an embodiment of the inner side of the middle reflective layer;

[0032] Figure 5 This is a schematic structural diagram of another embodiment of the display device of the present application;

[0033] Figure 6 This is a schematic structural diagram of another embodiment of the display device of the present application;

[0034] Figure 7 This is a flow chart of an embodiment of a method for manufacturing a display device in this application;

[0035] Figure 8 This is a structural diagram of an embodiment of the preparation of the filling layer in this application;

[0036] Figure 9 This is a structural diagram of an embodiment of the preparation of the reflective layer in this application. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] See also Figure 1 In the related art, after the light L1 emitted from the bent portion 12 of the display device is emitted from the bent portion 12, it will be emitted from the side along the direction of the light L2, resulting in light efficiency loss.

[0039] In order to solve the above technical problems, the present application provides a display device. Figure 2 , Figure 2 1 is a schematic structural diagram of an embodiment of a display device in the present application. The display device 100 includes a display panel 10 , a cover plate 20 and a reflective layer 31 .

[0040] The display panel 10 includes a main display portion 11, a bent portion 12, and an extension portion 13, which are sequentially connected. The main display portion 11 and the extension portion 13 are arranged opposite each other and stacked. The cover plate 20 is located on the side of the main display portion 11 facing away from the extension portion 13. The orthographic projections of the main display portion 11 and the bent portion 12 on the cover plate 20 are located within the cover plate 20, which facilitates the cover plate 20's protection of the display panel 10. The reflective layer 31 is used to reflect light emitted from the side of the bent portion 12 closest to the cover plate 20 back to the cover plate 20.

[0041] The display panel 10 may be a flexible display panel, such as an organic light emitting display panel. Figure 2 After the reflective layer 31 is added to the display device 100, the light L1 emitted from the bent portion 12 is reflected by the reflective layer 31 and enters the cover plate 20 along the direction of the light L3, thereby improving the brightness of the area and achieving a narrow frame.

[0042] In this application, the reflective layer is designed so that the light originally emitted laterally from the bent portion is reflected toward the cover plate, reducing the loss of light efficiency, thereby increasing the brightness of the edge area of the display device corresponding to the bent portion, reducing or even eliminating the discoloration and failure problems in the edge area, and achieving a narrow frame.

[0043] Optionally, the reflective layer 31 may be located on the side of the bend 12 facing away from the main display portion 11 and connected between the bend 12 and the cover plate 20. Alternatively, the reflective layer 31 may be flat and independent, located within the gap between the bend 12 and the cover plate 20. Alternatively, the reflective layer 31 may be connected between the top of the bend 12 and the cover plate 20. The reflective layer 31 may be provided on any carrier, such as the inner surface of the display device housing. The reflective layer 31 may be a reflective plate, such as a metal reflector.

[0044] Optionally, the reflective layer 31 includes at least one of a magnesium-silver alloy reflective layer and a glass bead reflective layer to achieve a better reflection effect on light.

[0045] Optional, such as Figure 3As shown, the display device 100 also includes: a filling layer 30. The filling layer 30 is located between the cover plate 20 and the bending portion 12. Optionally, a reflective layer 31 is located on the surface of the filling layer 30 on the side facing away from the main display portion 11. The filling layer 30 can serve as a carrier for the reflective layer 31, and the filling layer 30 can fill the gap between the cover plate 20 and the bending portion 12, so that the original movable space between the bending portion 12 and the cover plate 20 disappears, so that the position of the bending portion 12 and the cover plate 20 is fixed. The preparation of the filling layer 30 further improves the structural stability of the display device 100, thereby improving the stability of the screen body and preventing shaking, which causes light changes. The filling layer 30 is formed between the bending portion 12 and the cover plate 20. The filling layer 30 is light-transmissive and will not affect the display brightness of the cover plate 20 area corresponding to the bending portion 12.

[0046] When the reflective layer 31 is located on the surface of the side of the filling layer 30 away from the main display part 11, the light emitted from the bent portion 12 passes through the filling layer 30 and illuminates the surface of the side of the filling layer 30 away from the main display part 11, and will illuminate the reflective layer 31. The reflective layer 31 will reflect this part of the light, and the reflected light will enter the edge part of the cover plate 20 corresponding to the bent portion 12, thereby reducing the light efficiency loss and improving the brightness of the edge area of the display device 100 corresponding to the bent portion 12.

[0047] See also Figure 3 , Figure 3 This is a schematic structural diagram of another embodiment of the display device in the present application; optionally, the refractive index of the filling layer 30 is lower than that of the cover plate 20. Light emitted from the bent portion 12 is refracted at the interface between the filling layer 30 and the cover plate 20. The refractive index of the filling layer 30 is lower than that of the cover plate 20, causing the light emitted from the bent portion 12 to be refracted in a direction close to perpendicular to the cover plate 20 (parallel to the direction Z), thereby changing the light emission angle and further improving the brightness of the edge area of the display device 100 corresponding to the bent portion 12.

[0048] like Figure 3 As shown, after adding the filling layer 30 to the display device, the light L1' emitted from the part of the bent portion 12 away from the arc top is refracted by the filling layer 30 and enters the cover plate 20, and then changes the angle of the light to be emitted to the cover plate 20 at the angle shown by the light L4, and is emitted in a direction close to perpendicular to the cover plate 20. This can reduce the inclination angle of the emission direction of the light L4 relative to the light emission direction of the main display portion 11, which is beneficial to improving the display effect. Figure 3As shown, the light L1 emitted from the part of the bending portion 12 near the top of the arc is reflected by the reflective layer 31, refracted into the cover plate 20 through the filling layer 30, and then the light angle is changed again, and is emitted to the cover plate 20 at the angle shown by the light L5, and is emitted in a direction close to perpendicular to the cover plate 20, which can reduce the inclination angle of the emission direction of the light L5 relative to the light emission direction of the main display portion 11, which is beneficial to improving the display effect.

[0049] Optional, such as Figure 2 and Figure 3 As shown, the reflective layer 31 extends to the top of the bending arc of the bending portion 12 so as to fully reuse the outward scattered light of the bending portion 12.

[0050] Please continue reading Figure 3 Optionally, the surface of the filling layer 30 on the side facing away from the main display portion 11 is flush with the top of the bend of the bent portion 12, so that the reflective layer 31 can be prepared to extend to the top of the bend of the bent portion 12. This design expands the range of light emitted from the bent portion 12 that enters the filling layer 30, allowing most of the light emitted from the bent portion 12 to enter the filling layer 30 and illuminate the reflective layer 31, thereby fully recycling the outwardly scattered light from the bent portion 12 and increasing the range of light entering the cover plate 20. This can improve the brightness of the edge area of the display device 100 corresponding to the bent portion 12, that is, the portion of the cover plate 20 that coincides with the orthographic projection of the bent portion 12 on the cover plate 20, thereby reducing the degree of brightness attenuation and alleviating or even eliminating discoloration and failure problems in this edge area.

[0051] Optionally, the surface of the filling layer 30 facing away from the main display portion 11 is planar, facilitating the preparation of the reflective layer 31 on the surface of the filling layer 30 facing away from the main display portion 11. The reflective layer 31 is located on the surface of the filling layer 30 facing away from the main display portion 11, and thus can be designed to be planar. Because the filling layer 30 is located between the cover plate 20 and the bent portion 12, and the bent portion 12 has a certain curvature, the thickness of the filling layer 30 gradually increases as it moves away from the main display portion 11. When the surface of the filling layer 30 facing away from the main display portion 11 is planar, the preparation process for the filling layer 30 is simplified, while also providing better support for the structural stability between the cover plate 20 and the bent portion 12.

[0052] Optionally, the filling layer 30 is a filling adhesive. The cover plate 20 and the bent portion 12 can be bonded together using the filling adhesive to improve the structural stability between the cover plate 20 and the bent portion 12. Optionally, the filling layer 30 includes at least one of a UV-curable adhesive, a silicone adhesive, and an epoxy adhesive. When selecting the material for the filling layer 30, a colloid with a corresponding refractive index can be selected based on the thickness of the filling layer 30 and the dimensions of the display device 100. One or more of UV-curable adhesive, silicone adhesive, and epoxy adhesive can be selected. The colloid should be suitable for the display device 100 and have a refractive index that meets the requirements for improving edge brightness in the display device 100.

[0053] See also Figure 4 , Figure 4 for Figure 3 or Figure 2 Schematic diagram of the structure of an embodiment of the inner side of the middle reflective layer; optionally, a plurality of light absorbing portions 32 are provided on the surface of the filling layer 30 facing away from the main display portion 11, spaced apart along the first direction Z and extending along the second direction Y; the reflective layer 31 covers the spaces between the light absorbing portions 32. The light-reflecting areas corresponding to the reflective layer 31 and the light-absorbing areas corresponding to the light absorbing portions 32 may be arranged alternately along the first direction Z.

[0054] Optionally, the first direction Z is perpendicular to the display surface of the main display unit 11. Optionally, the second direction Y is parallel to the display surface of the main display unit 11. The main function of the light absorbing portion 32 is to absorb a portion of the light. At the same time, the reflective layer 31 covers the gap between the light absorbing portions 32, so that a portion of the light emitted from the bending portion 12 will be irradiated on the reflective layer 31. This portion of light will be reflected by the reflective layer 31 to the cover plate 20, and the remaining light will be irradiated on the light absorbing portion 32 and absorbed by the light absorbing portion 32. Since the light output from the top of the arc of the bending portion 12 is relatively dense, at this time, if all of these light rays are irradiated on the reflective layer 31, interference will occur, causing light mixing, affecting the imaging effect. Of course, in other embodiments, the light absorbing portion 32 can adopt a patterned design to absorb the light irradiated on the light absorbing portion 32, control a portion of the light to be irradiated on the reflective layer 31, thereby avoiding light interference and light mixing, and improving the display effect of the display device 100.

[0055] See also Figure 5 , Figure 5 This is a schematic structural diagram of another embodiment of the display device of the present application; optionally, the angle between the reflective surface of the reflective layer 31 and the first direction Z is greater than or equal to 0° and less than or equal to 15°, and the first direction Z is perpendicular to the display surface of the main display portion 11. In the first direction Z parallel to the stacking direction of the main display portion 11 and the extension portion 13, the angle α between the reflective surface of the reflective layer 31 and the first direction Z is greater than or equal to 0° and less than or equal to 15°. This design can adjust the angle α according to the curvature of the bend portion 12, that is, the angle of the scattered light source, see Figure 5The angle α between the reflective surface of the reflective layer 31 and the first direction Z is between 0 and 15°, for example, 0°, 5°, 10°, or 15°. In some embodiments, the arc formed by the bent portion 12 is not a standard arc. Due to the influence of the bending radius and the material, the angle of light emitted from the bent portion 12 is inconsistent. In this case, the angle between the reflective surface of the reflective layer 31 and the first direction Z can be designed according to the actual shape of the bent portion 12 to improve the brightness of the edge area corresponding to the cover plate 20 and the bent portion 12.

[0056] Please continue reading Figure 2 and Figure 3 In one embodiment, in the direction shown in the figure, optionally, the angle α between the reflective surface of the reflective layer 31 and the first direction Z is equal to 0°, that is, the plane where the reflective layer 31 is located is parallel to the first direction Z. At this time, the reflective surface of the reflective layer 31 is perpendicular to the main display part 11.

[0057] Figure 5 The diagram exemplifies a situation in which the end of the reflective layer 31 closer to the cover plate 20 is tilted toward the main display portion 11 relative to the end of the reflective layer 31 farther from the cover plate 20. The end of the reflective layer 31 closer to the cover plate 20 may also be tilted away from the main display portion 11 relative to the end of the reflective layer 31 farther from the cover plate 20.

[0058] See also Figure 6 , Figure 6 This is a schematic structural diagram of another embodiment of the display device of the present application; optionally, the cover plate 20 includes a first portion 21 and a second portion 22 connected in sequence. The orthographic projection of the bent portion 12 on the cover plate 20 is located within the first portion 21, and the orthographic projection of the main display portion 11 on the cover plate 20 is located within the second portion 22. This design allows the flat second portion 22 to be positioned opposite the main display portion 11, and they can be of the same size. Light from the main display portion 11 can be emitted through the second portion 22 for display, while the image from the bent portion 12 is concentrated primarily on the first portion 21 for display via the reflective layer 31.

[0059] Optionally, the first part 21 has a lens effect to improve the effect of guiding the light emitted from the bending part 12 in a direction close to perpendicular to the cover 20, so as to reduce the inclination angle of the light emitting direction of the first part 21 relative to the light emitting direction of the second part 22, which is beneficial to improving the display effect.

[0060] Optionally, in a direction away from the second portion 22 (parallel to the third direction X, equivalent to Figure 6 Optionally, in the direction away from the bending portion 12 (parallel to the first direction Z, equivalent to Figure 6In the direction of the first portion 21 facing the bent portion 12, the surface is concave. Figure 6 In the upward direction (in the middle), the surface of the first portion 21 facing away from the curved portion 12 is convex. When light emitted from the portion of the curved portion 12 away from the top of the arc passes through the filling layer 30 and strikes the first portion 21 at a relatively large angle, the upper and / or lower surfaces of the first portion 21 are configured as relatively large curved surfaces. This light path passes through the lens of the first portion 21, is refracted at a relatively small angle, and then exits in a direction close to Z, which is perpendicular to the second portion 22. This configuration is suitable for use in situations where the cover plate 20 is relatively thick and the curved surface angle of the first portion 21 is relatively large. It effectively reduces the inclination angle of the light exiting direction of the first portion 21 relative to the light exiting direction of the second portion 22, thereby improving the display effect.

[0061] In another application scenario, the angle α between the reflective surface of the reflective layer 31 and the first direction Z is 10°, and the reflective layer 31 is tilted toward the main display portion 11. Meanwhile, the surface of the first portion 21 facing the bent portion 12 is flat. In this case, when light emitted from the bent portion 12 passes through the filling layer 30 and hits the reflective layer 31, the tilted reflective layer 31 reflects the light at a smaller angle toward the first portion 21. In this case, the upper and lower surfaces of the first portion 21 are parallel, and the light is emitted in a direction nearly perpendicular to the first portion 21. This arrangement is suitable for situations where the cover plate 20 is thin and the two opposing surfaces of the first portion 21 along its thickness (e.g., the upper and lower surfaces) are parallel. It effectively reduces light loss in the bent portion 12 and mitigates discoloration and failure issues in the edge area.

[0062] Optionally, the display device 100 further includes a second adhesive layer 14. The second adhesive layer 14 may be located between the main display portion 11 and the cover plate 20, and the filling layer 30 is connected to the second adhesive layer 14. The second adhesive layer 14 serves to bond the main display portion 11 to the cover plate 20. Optionally, in a first direction Z, the thickness of the second adhesive layer 14 is greater than or equal to 25 μm, where the first direction Z is perpendicular to the display surface of the main display portion 11. The thickness of the second adhesive layer 14 is greater than or equal to 25 μm, for example, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm, etc. This thickness facilitates filling of the filling layer 30, ensures the filling effect of the filling layer 30, avoids the generation of bubbles, improves the tightness of the connection between the filling layer 30 and the second adhesive layer 14, and prevents the glue from being completely poured into the filling layer 30. The second adhesive layer 14 may be a transparent optical adhesive (OCA), etc.

[0063] Optionally, the minimum thickness of the filling layer 30 is greater than or equal to the thickness of the second adhesive layer 14. The minimum thickness of the filling layer 30 can be the same as the thickness of the second adhesive layer 14. Because the filling layer 30 is connected to the second adhesive layer 14, namely above the connection between the bent portion 12 and the main display portion 11, the thickness of the filling layer 30 is at its minimum and is the same as the thickness of the second adhesive layer 14. This design ensures that the average thickness of the filling layer 30 is greater than 25 μm, facilitating the preparation of the filling layer 30. In the direction away from the second adhesive layer 14, as the distance between the bent portion 12 and the first portion 21 in the first direction Z gradually increases, the thickness of the filling layer 30 gradually increases, and the filling layer 30 completely fills the gap between the bent portion 12 and the first portion 21.

[0064] Optionally, in the display device 100, the bent portion 12 may correspond to a status display area of the display device 100, which is used to display at least one of battery level, signal strength, network connection status, Bluetooth connection status, time, alarm status, ring mode, application information, and operator information. The network connection status, Bluetooth connection status, and alarm status refer to the states of the network connection, Bluetooth connection, and alarm being on or off, respectively. For example, the corresponding icons may be displayed in the status display area when the states are on, and not displayed when the states are off. The ring mode refers to the notification mode for incoming calls on an electronic device such as a mobile phone, including but not limited to ring, vibrate, or mute. Application information refers to information related to applications on the electronic device, such as message alerts and notifications from chat apps. Operator information refers to information such as the operator name. The content displayed in this status display area is simple, with low display quality requirements, thereby reducing the design complexity of the bent portion 12 and the reflective layer 31. Of course, in other embodiments, the bent portion 12 may correspond to other areas of the display device 100.

[0065] Optionally, the display device 100 may further include a bonding element 50 bonded to the extension portion 13. The bonding element may include a driver chip and / or a flexible circuit board.

[0066] See also Figure 7 , Figure 7 1 is a flow chart of an embodiment of a method for manufacturing a display device in this application; a method for manufacturing a display device 100 includes:

[0067] S1: A display panel is arranged on one side of the cover.

[0068] The display panel 10 includes a main display portion 11, a bent portion 12, and an extension portion 13 connected in sequence. The main display portion 11 and the extension portion 13 are arranged opposite to each other and stacked. The cover plate 20 is located on the side of the main display portion 11 away from the extension portion 13. The orthographic projections of the main display portion 11 and the bent portion 12 on the cover plate 20 are located within the cover plate 20. Optionally, the cover plate 20 and the main display portion 11 of the display panel 10 can be bonded and fixed by a second adhesive layer 14. There may be a gap between the cover plate 20 and the bent portion 12. Optionally, the cover plate 20 can be a rigid cover plate, for example, it can include a glass cover plate. The cover plate 20 can also be a flexible cover plate, for example, the cover plate 20 can include a material such as polyimide.

[0069] S2: forming a reflective layer.

[0070] The reflective layer 31 is used to reflect light emitted from the side of the bent portion 12 closest to the cover plate 20 toward the cover plate 20. In one embodiment, the reflective layer 31 has a certain degree of hardness, exists independently in the gap between the bent portion 12 and the cover plate 20, and is connected between the bent portion 12 and the cover plate 20. The reflective layer 31 can be bonded to the bent portion 12 and the cover plate 20 to secure the reflective layer 31.

[0071] In another embodiment, before preparing the reflective layer 31 , the filling layer 30 is prepared first, and then the reflective layer 31 is prepared on the surface of the filling layer 30 facing away from the main display portion 11 .

[0072] See also Figure 8 , Figure 8 This is a structural diagram of an embodiment of the filling layer preparation in this application; in the method for preparing the display device, before forming the reflective layer 31, it also includes the preparation of the filling layer 30. The filling layer 30 is formed between the cover plate 20 and the bending portion 12, and the reflective layer 31 is located on the surface of the filling layer 30 on the side away from the main display portion 11. Figure 8As shown, the cover plate 20 and display panel 10 are placed vertically. A filling layer material, such as OCR liquid optical adhesive, is gradually dripped into the gap between the cover plate 20 and the bend 12 using a dispensing container, until the filling layer material completely fills the gap between the cover plate 20 and the bend 12. The filling layer material is applied to the gap in a fill-and-cure process, covering at least a portion of the bend 12 to form a filling layer 30. When the filling layer material is applied flush with the top of the bend 12, the filling layer 30 can be leveled using a dispensing needle or other tool. In some embodiments, the surface of the filling layer 30 facing away from the second adhesive layer 14 can be beveled using a dispensing needle or other tool. The bevel has an angle between 0 and 15 degrees to meet the required inclination angle of the reflective layer 31. If the filling layer material is highly fluid, a curing-and-coating process can be used to prevent overflow during dispensing. Furthermore, the filling layer material can be irradiated with UV light of varying parameters to meet the curing requirements, tailored to the material's fluidity. After the filling layer 30 is prepared, it can refract the light in a direction perpendicular to the cover plate 20 by changing the light emission angle of the bending portion 12 .

[0073] See also Figure 9 , Figure 9 This is a schematic diagram of the structure of one embodiment of the reflective layer preparation method in this application. After the filling layer 30 is prepared, the reflective layer 31 is prepared. A reflective solution is applied to the surface of the filling layer 30 facing away from the bend 12, so that the reflective solution completely covers the filling layer 30 when leveled and at rest. After curing, the reflective layer 31 is formed. The reflective solution can be cured by ultraviolet (UV) irradiation to form the reflective layer 31, which is used to reflect light emitted from the bend 12 and impinging on the reflective layer 31 back to the cover plate 20.

[0074] Optionally, before preparing the reflective layer 31, the light-absorbing portion 32 can be prepared. A light-absorbing solution is evenly applied along the second direction Y to a portion of the surface of the filling layer 30 facing away from the second adhesive layer 14. The light-absorbing portions 32 are spaced apart along the first direction Z so that the light-absorbing solution forms parallel strips when leveled and at rest. The light-absorbing solution is then cured to form the light-absorbing portions 32. In other embodiments, the light-absorbing solution can be patterned to absorb a portion of the light, thereby achieving a better display effect in the area corresponding to the bent portion 12 of the display device 100. The first direction Z can be perpendicular to the second direction Y. The first direction Z can be perpendicular to the third direction X. The third direction X can be perpendicular to the second direction Y.

[0075] The display device 100 provided in the present application reflects the light emitted from the side of the bend 12 close to the cover plate 20 to the cover plate 20 through the reflective layer 31, thereby improving the brightness of the edge area of the display device 100 corresponding to the bend 12. By arranging a filling layer 30 between the bend 12 and the cover plate 20, the refractive index of the filling layer 30 is lower than the refractive index of the cover plate 20, so that the light is refracted in a direction close to perpendicular to the cover plate 20, reducing light loss, improving the brightness of the edge area of the display device 100 corresponding to the bend 12, and improving the display effect. Optionally, light absorbing portions 32 can be arranged at intervals in the reflective layer 31, which absorb the light irradiated on the light absorbing portions 32, prevent light interference, and improve the display effect of the edge area of the display device 100 corresponding to the bend 12. In addition, the first portion 21 of the cover plate 20 acts as a lens, so that the light emitted from the part of the bend 12 away from the top of the arc that is emitted to the first portion 21 will be emitted in a direction close to perpendicular to the cover plate 20, which can further reduce the discoloration and failure problems of the edge area.

[0076] The method for preparing the display device provided in this application is used to prepare the display device provided in any of the above embodiments, and has the same technical effects, which will not be described again here.

[0077] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display device, characterized in that: include: The display panel comprises a main display portion, a bending portion and an extension portion connected in sequence, wherein the main display portion and the extension portion are opposite to each other and stacked; a cover plate, located on a side of the main display portion facing away from the extending portion, and wherein the orthographic projections of the main display portion and the bent portion on the cover plate are located inside the cover plate; a reflective layer, configured to reflect light emitted from a side of the bent portion close to the cover plate toward the cover plate; A filling layer is located between the cover plate and the bent portion; wherein the reflective layer is located on a surface of the filling layer facing away from the main display portion; The cover plate includes a first portion and a second portion connected in sequence, the orthographic projection of the bent portion on the cover plate is located within the first portion, and the orthographic projection of the main display portion on the cover plate is located within the second portion; the first portion has a lens function; The thickness of the first part gradually decreases in the direction away from the second part. In the direction away from the bending part, the surface of the first part facing the bending part is concave, and the surface of the first part away from the bending part is convex.

2. The display device according to claim 1, wherein A surface of the filling layer on a side facing away from the main display portion is flush with a bending arc top of the bending portion.

3. The display device according to claim 2, wherein: The surface of the filling layer on a side facing away from the main display portion is a plane.

4. The display device according to claim 1, wherein The refractive index of the filling layer is smaller than the refractive index of the cover plate; The filling layer is a filling glue, and the filling layer includes at least one of ultraviolet curing glue, organic silica gel and epoxy glue.

5. The display device according to claim 1, wherein The surface of the filling layer on the side away from the main display part is provided with a plurality of light absorbing parts spaced apart in a first direction and extending in a second direction; the reflective layer covers the gaps between the light absorbing parts. The light-absorbing portion absorbs a portion of the light, and at the same time, the light-reflecting layer covers the gaps between the light-absorbing portions, so that a portion of the light emitted from the bent portion will be irradiated onto the light-reflecting layer. This portion of the light will be reflected by the light-reflecting layer onto the portion of the cover plate that is opposite to the bent portion along the first direction, and the remaining light will be irradiated onto the light-absorbing portion and absorbed by the light-absorbing portion.

6. The display device according to claim 5, wherein: The first direction is perpendicular to the display surface of the main display portion.

7. The display device according to claim 5, wherein: The second direction is parallel to the display surface of the main display portion.

8. The display device according to claim 1, wherein The display device further includes: The second adhesive layer is located between the main display portion and the cover plate, and the filling layer is connected to the second adhesive layer; the thickness of the filling layer gradually increases in a direction away from the second adhesive layer.

9. The display device according to claim 8, wherein In a first direction, the thickness of the second adhesive layer is greater than or equal to 25 μm, and the first direction is perpendicular to the display surface of the main display portion; Wherein, the minimum thickness of the filling layer is greater than or equal to the thickness of the second adhesive layer.

10. The display device according to claim 1, wherein The angle between the reflective surface of the reflective layer and the first direction is greater than or equal to 0° and less than or equal to 15°, and the first direction is perpendicular to the display surface of the main display portion; With respect to the end of the reflective layer away from the cover plate, the end of the reflective layer close to the cover plate is inclined toward the main display portion.

11. The display device according to claim 1, wherein The reflective layer includes at least one of a magnesium-silver alloy reflective layer and a glass bead reflective layer.

12. The display device according to claim 1, wherein The bent portion corresponds to a status display area of the display device, and the status display area is used to display at least one of battery level, signal strength, network connection status, Bluetooth connection status, time, alarm status, ringing mode, application information, and operator information.

13. A display device, characterized in that: include: The display panel comprises a main display portion, a bending portion and an extension portion connected in sequence, wherein the main display portion and the extension portion are opposite to each other and stacked; a cover plate, located on a side of the main display portion facing away from the extending portion, and wherein the orthographic projections of the main display portion and the bent portion on the cover plate are located inside the cover plate; a reflective layer, configured to reflect light emitted from a side of the bent portion close to the cover plate toward the cover plate; A filling layer is located between the cover plate and the bent portion; wherein the reflective layer is located on a surface of the filling layer facing away from the main display portion; The angle between the reflective surface of the reflective layer and the first direction is greater than or equal to 0° and less than or equal to 15°, and the first direction is perpendicular to the display surface of the main display portion; With respect to the end of the reflective layer away from the cover plate, the end of the reflective layer close to the cover plate is inclined toward the main display portion.

14. A method for manufacturing a display device, characterized in that: include: A display panel is provided on one side of the cover plate; wherein the display panel includes a main display portion, a bent portion, and an extension portion connected in sequence, the main display portion and the extension portion being opposite and stacked, the cover plate being located on a side of the main display portion facing away from the extension portion, and the orthographic projections of the main display portion and the bent portion on the cover plate being located within the cover plate; forming a reflective layer; the reflective layer is used to reflect light emitted from the side of the bent portion close to the cover plate toward the cover plate; Before forming the reflective layer, the method further includes: A filling layer is formed between the cover plate and the bent portion, and the reflective layer is located on a surface of the filling layer facing away from the main display portion; The cover plate includes a first portion and a second portion connected in sequence, the orthographic projection of the bent portion on the cover plate is located within the first portion, and the orthographic projection of the main display portion on the cover plate is located within the second portion; the first portion has a lens function; The thickness of the first part gradually decreases in the direction away from the second part. In the direction away from the bending part, the surface of the first part facing the bending part is concave, and the surface of the first part away from the bending part is convex.

15. The manufacturing method according to claim 14, characterized in that: The step of forming the light reflecting layer comprises: After the filling layer is prepared, the light absorbing portion is prepared. A light absorbing solution is evenly coated along the second direction on a portion of the surface of the filling layer on a side away from the main display portion. The light absorbing portions are spaced apart along the first direction so that the light absorbing solution forms parallel strips when leveled and at rest. The light absorbing solution is then solidified to form the light absorbing portions. The reflective layer is prepared by coating a reflective solution on the surface of the filling layer away from the bending portion, so that the reflective solution completely covers the filling layer when it is leveled and still, and forms a reflective layer after solidification.

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