Display panel, display device and manufacturing method thereof

Abstract

The application provides a display panel, a display device and a manufacturing method thereof, the display panel comprising a back plate and a cover plate, a first light emitting diode arranged on the back plate and a light barrier and a reflecting plate arranged on the cover plate. Light emitted from the side of the first light emitting diode can firstly enter the light barrier from the side of the light barrier facing the first light emitting diode, and then pass through the light barrier to the first inclined surface, and the direction of the light path is changed by the reflecting plate, so that the light is emitted to the direction of the cover plate. The light emitted from the side of the first light emitting diode can be more reflected to the direction of the cover plate, the brightness of the light emitted by the first light emitting diode and the concentration of the light are improved, so that the brightness and the light efficiency of the display panel are improved, and the energy consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel, a display device, and a method for manufacturing the same. Background Technology

[0002] Micro LED (micro-light-emitting diode) is a next-generation display technology that offers higher brightness, better luminous efficiency, and lower power consumption compared to existing OLED (organic light-emitting diode) technology. Due to their structural characteristics, micro-LEDs and similar light sources emit light from multiple surfaces, resulting in dispersed and less concentrated light, which in turn leads to poorer display performance on display panels. Summary of the Invention

[0003] This invention discloses a display panel that can concentrate the light emitted by a light-emitting diode, thereby improving the luminous efficiency of the display panel on which the light-emitting diode is mounted.

[0004] To achieve the above objectives, in a first aspect, the present invention discloses a display panel, comprising: a back plate and a cover plate arranged sequentially in a first direction; a first light-emitting diode disposed on the side of the back plate facing the cover plate; a photoresist for transmitting light, the photoresist being disposed on the side of the cover plate facing the back plate; the side of the photoresist away from the first light-emitting diode being a first inclined surface, and along the first direction, the first inclined surface being inclined away from the first light-emitting diode; and a reflector for reflecting light, the reflector being disposed on the first inclined surface and having a first reflective surface conforming to the first inclined surface, the reflector avoiding the first light-emitting diode in the first direction.

[0005] As an optional implementation, in this embodiment of the invention, the photoresist is trapezoidal, the photoresist has a top surface and a bottom surface disposed opposite to each other, and a first inclined surface and a second inclined surface located between the top surface and the bottom surface, the bottom surface is connected to the cover plate, and along the first direction, the projection of the top surface on the cover plate is smaller than the projection of the bottom surface on the cover plate;

[0006] The first inclined plane and the second inclined plane are arranged opposite each other in a second direction, the second direction intersects the first direction, and the angle between the first inclined plane and the bottom surface and the angle between the second inclined plane and the bottom surface are both acute angles.

[0007] As an optional implementation, in this embodiment of the invention, the photoresist and the backplate are spaced apart along the first direction.

[0008] As an optional implementation, in this embodiment of the invention, the reflector extends from the first inclined surface to the top surface to cover at least a portion of the surface of the top surface.

[0009] As an optional implementation, in this embodiment of the invention, the photoresist is an isosceles trapezoid, and the first inclined plane and the second inclined plane are symmetrically arranged along the vertical bisector of the base.

[0010] As an optional implementation, in this embodiment of the invention, the reflector is a metal reflector.

[0011] As an optional implementation, in this embodiment of the invention, the display panel further includes a second light-emitting diode, which is disposed on the side of the back plate facing the panel. Multiple first light-emitting diodes are disposed, and the second light-emitting diode is disposed between two adjacent first light-emitting diodes. The projection of the reflector onto the back plate is located between the first light-emitting diode and the second light-emitting diode.

[0012] The luminous efficacy of the second light-emitting diode is greater than that of the first light-emitting diode. The reflector has a second reflective surface that is away from the first reflective surface. Along the first direction, the second reflective surface is inclined toward the direction of the second light-emitting diode.

[0013] As an optional implementation, in this embodiment of the invention, the first light-emitting diode is divided into a red diode and a green diode, and the second light-emitting diode is a blue diode, wherein the blue diode is disposed between the red diode and the green diode.

[0014] As an optional implementation, in this embodiment of the invention, encapsulating adhesive is filled between the cover plate and the back plate.

[0015] In a second aspect, the present invention also discloses a display device, including a display panel as described in the first aspect above.

[0016] Thirdly, the present invention also discloses a method for manufacturing a display panel, comprising:

[0017] A cover plate is provided; a photoresist is formed on one side of the cover plate, the photoresist having a top surface and a bottom surface opposite each other, the bottom surface being connected to the cover plate, for having a first inclined surface on the side of two adjacent photoresistors corresponding to the first light-emitting diode on both sides, the first inclined surface being located between the top surface and the bottom surface, and inclined in a direction away from the first light-emitting diode from the top surface to the bottom surface; a reflector is provided on the first inclined surface; the side of the reflector that is in contact with the first inclined surface is a first reflective surface, the first reflective surface facing the cover plate, and the side of the reflector that is away from the first reflective surface is a second reflective surface;

[0018] A backplate is provided; a first light-emitting diode and a second light-emitting diode are disposed on one side of the backplate, the luminous efficacy of the second light-emitting diode is greater than that of the first light-emitting diode, and the first light-emitting diode and the second light-emitting diode are disposed alternately; an encapsulating adhesive is applied to the side of the backplate where the first light-emitting diode and the second light-emitting diode are disposed, so that the encapsulating adhesive covers the first light-emitting diode and the second light-emitting diode;

[0019] The side of the cover plate with the photoresist is covered onto the side of the back plate with the first light-emitting diode, so that the encapsulating adhesive covers the cover plate and the photoresist; wherein, the projection of the reflector on the back plate is located between the first light-emitting diode and the second light-emitting diode; along the first direction, the first reflector is inclined away from the first light-emitting diode, and the second reflector is inclined towards the second light-emitting diode.

[0020] As an optional implementation, in this embodiment of the invention, forming a reflective plate on the surface of the first inclined surface includes:

[0021] A reflective layer is formed on all the outer surfaces of the photoresist and on the surface of the cover plate;

[0022] A second photoresist layer is formed on the surface of the reflective layer, and the second photoresist layer covers the portion of the reflective layer corresponding to the first inclined surface;

[0023] The second photoresist layer is exposed and developed to form an etch protective layer;

[0024] The reflective layer is etched to remove the portion of the reflective layer not covered by the etched protective layer, and to retain the portion of the reflective layer covered by the etched protective layer to form the reflector.

[0025] Remove the etched protective layer.

[0026] As an optional implementation, in this embodiment of the invention, forming a reflective layer on all outer surfaces of the photoresist and on the surface of the cover plate includes:

[0027] Provide vapor deposition materials;

[0028] The vapor-deposited material is vapor-deposited onto the cover plate having the photoresist, so as to form a reflective layer on all the outer surfaces of the photoresist and the surface of the cover plate.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] This invention provides a display panel with the following advantages: Firstly, light emitted from the side of the first light-emitting diode (LED) can first enter the photoresist from the side of the photoresist facing the LED, then pass through the photoresist to reach the first inclined surface. The light is then reflected by the reflector, changing the direction of the light path so that the light exits towards the cover plate. This allows more light emitted from the side of the LED to be reflected towards the cover plate, thereby increasing the brightness and concentration of the LED, thus improving the brightness and luminous efficiency of the display panel and reducing energy consumption. Secondly, by placing the photoresist and the first LED on the cover plate and the back plate respectively, and by having the reflector avoid the LED in the first direction, the design distance between the reflector and the LED is shortened in both the first direction and along the plane of the back plate. Furthermore, the avoidance of interference between the LED and the reflector prevents interference between them, resulting in a more compact layout of the display panel. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of the present invention;

[0033] Figure 2 This is the optical path diagram of the first light-emitting diode provided in this embodiment;

[0034] Figure 3 This is an enlarged view of the display panel provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the cover plate structure during the cover plate manufacturing process provided in an embodiment of the present invention;

[0036] Figure 5 This is a structural schematic diagram of the backplate manufacturing process provided in an embodiment of the present invention;

[0037] Figure 6 This is a structural block diagram of the display device provided in an embodiment of the present invention;

[0038] Figure 7 This is a flowchart of a display panel manufacturing method provided in an embodiment of the present invention.

[0039] Icons: 100, Display panel; 10, Back plate; 20, Cover plate; 30, First light-emitting diode; 40, Photoresist; 42, Top surface; 43, Bottom surface; 44, First slope; 45, Second slope; 401, Photoresist layer; 50, Reflector; 51, First reflective surface; 52, Second reflective surface; 501, Reflective layer; 502, Etching protective layer; 60, Second light-emitting diode; 70, Encapsulating adhesive; 200, Display device. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0043] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0044] Please see Figures 1 to 3 In a first aspect, the present invention provides a display panel 100, including a back plate 10, a cover plate 20, a first light-emitting diode (LED) 30, a photoresist 40, and a reflector 50. The back plate 10 and the cover plate 20 are arranged sequentially facing a first direction. The first LED 30 is disposed on the side of the back plate 10 facing the cover plate 20. The photoresist 40 is used to transmit light and is disposed on the side of the cover plate 20 facing the back plate 10. The side of the photoresist 40 away from the first LED 30 is a first inclined surface 44, which is inclined away from the first LED 30 along the first direction. The reflector 50 is used to reflect light and is disposed on the first inclined surface 44, having a first reflective surface 51 that adheres to the first inclined surface 44. The reflector 50 avoids the first LED 30 in the first direction.

[0045] The first direction is the direction from the back plate 10 to the cover plate 20, such as... Figure 1 The z-direction is shown.

[0046] By adopting this solution, on the one hand, the light emitted from the side of the first light-emitting diode 30 can first enter the photoresistor 40 from the side facing the first light-emitting diode 30, thereby passing through the photoresistor 40 to reach the first inclined surface 44, and being reflected by the reflector 50 to change the direction of the light path, so that the light is emitted towards the cover plate 20. In this way, more light emitted from the side of the first light-emitting diode 30 can be reflected towards the cover plate 20, thereby improving the brightness and light concentration of the first light-emitting diode 30, thereby improving the brightness and luminous efficiency of the display panel 100 and reducing energy consumption. On the other hand, by setting the photoresistor 40 and the first light-emitting diode 30 on the cover plate 20 and the back plate 10 respectively, and by having the reflector 50 avoid the first light-emitting diode 30 in the first direction, it is beneficial to shorten the design distance between the reflector 50 and the first light-emitting diode 30 in the first direction and along the plane of the back plate 10. Furthermore, by having the reflector 50 avoid the first light-emitting diode 30, interference between the first light-emitting diode 30 and the reflector 50 can be avoided, thereby making the layout structure of the display panel 100 more compact.

[0047] In some embodiments, the photoresist 40 can be trapezoidal, thus having a top surface 42 and a bottom surface 43 disposed opposite each other, and a first inclined surface 44 and a second inclined surface 45 located between the top surface 42 and the bottom surface 43. The bottom surface 43 is connected to the cover plate 20. Along a first direction, the projection of the top surface 42 onto the cover plate 20 is smaller than the projection of the bottom surface 43 onto the cover plate 20. The first inclined surface 44 and the second inclined surface 45 are along a second direction (e.g., ...). Figure 1 The x-direction shown is set relative to the first direction, the second direction intersects the first direction, and the angle between the first inclined plane 44 and the bottom surface 43 and the angle between the second inclined plane 45 and the bottom surface 43 are both acute angles.

[0048] When forming the photoresist 40, taking advantage of the principle that the deeper the photoresist layer, the smaller its exposure range, after development, for positive photoresist 40 material, the area of ​​the bottom surface 43 of the formed photoresist 40 is larger than that of the top surface 42, thus forming a positive trapezoidal photoresist 40. Similarly, for negative photoresist 40 material, an inverted trapezoidal photoresist 40 can be formed. Since the reflector 50 is usually formed on the surface of the photoresist 40 by vapor deposition, the vapor-deposited material gradually adheres to and covers the entire outer surface of the photoresist 40 along the direction from the top surface 42 to the bottom surface 43. For the inverted trapezoidal photoresist 40, the vapor-deposited material cannot adhere to the inclined edge due to obstruction; therefore, when forming the reflector 50 using the above vapor deposition method, a positive trapezoidal photoresist 40 is usually used.

[0049] The first inclined surface 44 of the trapezoidal photoresist 40 facilitates the placement of the reflector 50. Typically, the trapezoidal photoresist 40 has two inclined surfaces. By placing the first inclined surface 44 on the side of the photoresist 40 furthest from the first light-emitting diode 30, the luminous efficacy of the light emitted by the first light-emitting diode 30 can be improved without altering the trapezoidal structure of the photoresist 40, thereby increasing the overall brightness of the display panel 100 and thus improving its energy efficiency. Optionally, the tilt angle of the first inclined surface 44 of the trapezoidal photoresist 40 can be adjusted by regulating the exposure time during the fabrication of the photoresist 40, thereby adjusting the light reflection angle of the first light-emitting diode.

[0050] Of course, in other examples, the trapezoidal photoresist 40 can also be a right trapezoid, that is, only one inclined plane can be set, which is the first inclined plane 44, and the side opposite to the first inclined plane 44 is a straight plane.

[0051] In some embodiments, the photoresist 40 and the back panel 10 are spaced apart along a first direction. In this way, when the back panel 10 and the cover plate 20 are closed together, the top surface 42 of the photoresist 40 can be prevented from touching the back panel 10, so as to avoid scratching the photoresist 40 or affecting the shape of the photoresist 40, thereby improving the assembly yield of the display panel 100.

[0052] In some embodiments, the reflector 50 extends from the first inclined surface 44 to the top surface 42 to cover at least a portion of the surface of the top surface 42. On one hand, by extending the reflector 50 from the first inclined surface 44 to the top surface 42, the reflector 50 can better cover the first inclined surface 44, increasing the reflective area for the first diode. This results in better light reflection and concentration effects of the reflector 50 on the first light-emitting diode 30, thereby improving the luminous efficacy of the display panel 100. Secondly, the increased contact area between the reflector 50 and the photoresist 40 makes their connection more stable, reducing the risk of the reflector 50 detaching from the connection point.

[0053] In some embodiments, the photoresist 40 is an isosceles trapezoid, with the first inclined surface 44 and the second inclined surface 45 symmetrically arranged along the vertical bisector of the base surface 43. Thus, when forming the photoresist 40, since the principle that the deeper the photoresist layer, the smaller its exposure range is utilized to form the trapezoidal photoresist 40, the photoresist 40 formed after development is usually an isosceles trapezoid. Therefore, when the cover plate 20 is provided with multiple photoresists 40, all photoresists 40 have the same shape. When the reflector 50 is provided on the first inclined surface 44 of the photoresist 40, the reflector 50 only needs to be provided on the opposing or back-to-back inclined surfaces between any two adjacent photoresists 40. In this way, all photoresists 40 formed on the cover plate 20 are identical, thereby reducing the difficulty of alignment when setting the reflector 50. Furthermore, for a first light-emitting diode 30, two photoresistors 40 are provided on its two sides, and the reflectors 50 provided on the two photoresistors 40 form an inverted V-shape structure, which can improve the light-gathering effect of the first light-emitting diode 30, thereby improving the light efficiency of the display panel 100.

[0054] Optionally, the reflector 50 is a metal reflector 50, which can be formed on the surface of the photoresist 40 by vapor deposition. The metal used for vapor deposition can be, but is not limited to, gold, silver, copper, and aluminum. Vapor deposition allows for the formation of a thinner and more uniform metal film layer on the surface of the photoresist 40. This metal film layer, as the reflector 50, makes the surface of the reflector 50 smoother, thereby improving light reflection performance.

[0055] In some embodiments, the display panel 100 further includes a second light-emitting diode (LED) 60, which is disposed on the side of the back plate 10 facing the panel. Multiple first LEDs 30 are disposed, with the second LED 60 positioned between adjacent first LEDs 30. The projection of the reflector 50 onto the back plate 10 is located between the first LEDs 30 and the second LEDs 60. The luminous efficacy of the second LED 60 is greater than that of the first LEDs 30. The reflector 50 has a second reflective surface 52 that faces away from the first reflective surface 51, and along a first direction, the second reflective surface 52 is inclined towards the second LED 60.

[0056] The display panel 100 is composed of multiple display units, each of which generally consists of a combination of pixels of different colors. Therefore, these pixels of different colors can be composed of at least a first light-emitting diode (LED) 30 and a second light-emitting diode (LED) 60. The luminous efficacy of pixels of different colors is generally different. By utilizing the first reflective surface 51, the light from the first LED 30, which has lower luminous efficacy, can be focused. Specifically, the reflective plates 50 on the two adjacent photoresistors 40 form an inverted V-shape, causing all the light from the first LED 30 to be reflected towards the cover plate 20, thus improving the light concentration and brightness of the first LED 30. For the second LED 60, the reflective plates 50 on the two adjacent photoresistors 40 form a regular V-shape, which can reflect a portion of the light from the second LED 60 towards the cover plate 20, thereby improving the light concentration of the second LED 60. By enhancing the first LED 30, which has lower luminous efficacy, the overall luminous efficacy of the entire display panel 100 can be improved.

[0057] In some embodiments, the first light-emitting diode 30 is divided into a red diode (R) and a green diode (G), and the second light-emitting diode 60 is a blue diode (B), with the blue diode positioned between the red and green diodes. Compared to the red and green diodes, the blue diode has higher luminous efficacy. Therefore, by placing the blue diode between the red and green diodes, it is possible to alternate between high-efficiency and low-efficiency light-emitting diodes. The red, blue, and green diodes are arranged sequentially to form a light-emitting group. Since the reflector 50 is only disposed on one of the inclined surfaces (first inclined surface 44) of the photoresistor 40, and not on the second inclined surface 45, and the reflector 50 is positioned on the side opposite to the first light-emitting diode 30, the inverted V-shaped structure formed by the first reflective surface 51 and the regular V-shaped structure formed by the second reflective surface 52 are also alternately arranged. This corresponds precisely to the first light-emitting diode 30 and the second light-emitting diode 60, thereby specifically improving the luminous brightness of the first light-emitting diode 30 and the light concentration of both the first and second light-emitting diodes 30 and 60. With the help of the light-blocking device 40 with reflector 50 and the tilt angle of reflector 50, the diffused light emitted by the light-emitting diodes (red diodes and green diodes) with low light efficiency can be reflected by reflector 50 and emitted from one side of cover plate 20, thereby improving light efficiency and light concentration.

[0058] In some embodiments, encapsulating adhesive 70 is used to fill the gap between the cover plate 20 and the back plate 10. The encapsulating adhesive 70 can fill the gap between the cover plate 20 and the back plate 10, and at the same time fix and protect the first light-emitting diode 30, the second light-emitting diode 60 and the photoresist 40 between the cover plate 20 and the back plate 10, preventing them from shifting or falling off.

[0059] Secondly, please refer to Figure 4 This application also provides a display device 200, including the display panel 100 of the first aspect mentioned above.

[0060] Thirdly, please refer to Figures 5 to 7 This application also provides a method for manufacturing a display panel 100, including steps S1 to S7, wherein the structure of the display panel 100 corresponding to each step is respectively... Figure 5 and Figure 6 A-H diagram in the diagram.

[0061] The manufacturing method of the display panel 100 includes:

[0062] S1. Provide cover plate 20;

[0063] S2. A photoresist 40 is formed on one side of the cover plate 20. The photoresist 40 has a top surface 42 and a bottom surface 43. The bottom surface 43 is connected to the cover plate 20. The side of the two adjacent photoresist 40s on both sides of the first light-emitting diode 30 that are opposite to the first light-emitting diode 30 has a first inclined surface 44. The first inclined surface 44 is located between the top surface 42 and the bottom surface 43. From the top surface 42 to the bottom surface 43, the first inclined surface 44 is inclined in a direction away from the first light-emitting diode 30.

[0064] It is understandable that the photoresist 40 can be formed by forming a photoresist layer 401 on the surface of the cover plate 20 and then exposing and developing the photoresist layer 401.

[0065] S3. A reflector 50 is provided on the first inclined surface 44. The side of the reflector 50 that is attached to the first inclined surface 44 is the first reflector 51, which faces the cover plate 20. The side of the reflector 50 that is away from the first reflector 51 is the second reflector 52.

[0066] Optionally, step S3 above specifically includes the following steps:

[0067] S31. A reflective layer 501 is formed on all outer surfaces of the photoresist 40 and the surface of the cover plate 20.

[0068] Specifically, step S31 includes the following steps:

[0069] S311 provides vapor deposition materials;

[0070] S312 vapor-deposits the material onto the cover plate 20 which is provided with photoresist 40, so as to form a reflective layer 501 on all the outer surfaces of the photoresist 40 and the surface of the cover plate 20.

[0071] The reflective layer 501 is formed by vapor deposition, which gives it good properties, such as small and uniform thickness, and better smoothness and density on its surface, thus achieving the effect of reflecting light.

[0072] S32. A second photoresist layer is formed on the surface of the reflective layer 501, and the second photoresist layer covers the portion of the reflective layer 501 corresponding to the first inclined surface 44.

[0073] S33. Expose and develop the second photoresist layer to form an etch protection layer 502;

[0074] S34. Etch the reflective layer 501 to remove the portion of the reflective layer 501 not covered by the etched protective layer 502, and retain the portion of the reflective layer 501 covered by the etched protective layer 502 to form a reflector 50.

[0075] S35, Remove the etch protective layer 502.

[0076] By first forming a continuous reflective layer 501 on the surface of the photoresist 40, and then selectively protecting the reflective layer 501 using a second photoresist layer (i.e., protecting the areas where the reflective plate 50 needs to be formed), the unprotected areas of the reflective layer 501 will be etched away during etching, leaving only the reflective layer 501 on the first inclined surface 44 of the photoresist 40. This allows for precise control over the placement area of ​​the reflective layer 501, improving the manufacturing effect of the display panel 100.

[0077] S4. Provide a back panel 10;

[0078] S5. A first light-emitting diode 30 and a second light-emitting diode 60 are arranged on one side of the back plate 10. The luminous efficacy of the second light-emitting diode 60 is greater than that of the first light-emitting diode 30. The first light-emitting diode 30 and the second light-emitting diode 60 are arranged alternately.

[0079] S6. Apply encapsulating adhesive 70 to one side of the first light-emitting diode 30 and the second light-emitting diode 60 on the back plate 10 so that the encapsulating adhesive 70 covers the first light-emitting diode 30 and the second light-emitting diode 60.

[0080] S7. Cover the side of the cover plate 20 with the photoresist 40 onto the side of the back plate 10 with the first light-emitting diode 30, so that the encapsulating adhesive 70 covers the cover plate 20 and the photoresist 40. The projection of the reflector 50 on the back plate 10 is located between the first light-emitting diode 30 and the second light-emitting diode 60. Along the first direction, the first reflective surface 51 is inclined away from the first light-emitting diode 30, and the second reflective surface 52 is inclined towards the second light-emitting diode 60.

[0081] The display panel 100 obtained by the above method can use the first reflective surface 51 of the reflector 50 to focus the light emitted by the first light-emitting diode 30 and emit it from the cover plate 20, thereby enhancing the light emission of the first light-emitting diode 30 and improving the light efficiency of the entire display panel 100.

[0082] For example, steps S1 to S3 are the process of setting the cover plate 20, steps S4 to S6 are the process of setting the back plate 10, and S7 is the process of assembling the cover plate 20 and the back plate 10 together. Before implementing step S7, the cover plate 20 and the back plate 10 can be completed sequentially, including completing the cover plate 20 first and then the back plate 10, or completing the back plate 10 first and then the cover plate 20. Of course, the cover plate 20 and the back plate 10 can also be completed simultaneously, that is, steps S1 and S4 start simultaneously.

[0083] The display panel, display device, and manufacturing method thereof disclosed in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the display panel, display device, manufacturing method thereof, and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A display panel, characterized in that, include: A backplate and a cover plate arranged sequentially in the first direction; A first light-emitting diode is disposed on the side of the back plate facing the cover plate; A light resist is used to transmit light. The light resist is disposed on the side of the cover plate facing the back plate. The side of the light resist away from the first light-emitting diode is a first inclined surface. Along the first direction, the first inclined surface is inclined away from the first light-emitting diode. A reflector for reflecting light, the reflector being disposed on the first inclined surface and having a first reflective surface that is attached to the first inclined surface, the reflector being positioned to avoid the first light-emitting diode in the first direction.

2. The display panel according to claim 1, characterized in that, The photoresist is trapezoidal, and has a top surface and a bottom surface disposed opposite to each other, as well as a first inclined surface and a second inclined surface located between the top surface and the bottom surface. The bottom surface is connected to the cover plate. Along the first direction, the projection of the top surface on the cover plate is smaller than the projection of the bottom surface on the cover plate. The first inclined plane and the second inclined plane are arranged opposite each other in a second direction, the second direction intersects the first direction, and the angle between the first inclined plane and the bottom surface and the angle between the second inclined plane and the bottom surface are both acute angles.

3. The display panel according to claim 2, characterized in that, The photoresist and the backplate are spaced apart along the first direction.

4. The display panel according to claim 3, characterized in that, The reflector extends from the first inclined surface to the top surface to cover at least a portion of the top surface.

5. The display panel according to claim 2, characterized in that, The photoresist is an isosceles trapezoid, and the first inclined plane and the second inclined plane are symmetrically arranged along the vertical bisector of the base.

6. The display panel according to any one of claims 1-5, characterized in that, The reflector is a metal reflector.

7. The display panel according to any one of claims 1-5, characterized in that, The display panel further includes a second light-emitting diode, which is disposed on the side of the back plate facing the panel. Multiple first light-emitting diodes are disposed, and the second light-emitting diode is disposed between two adjacent first light-emitting diodes. The projection of the reflector onto the back plate is located between the first light-emitting diodes and the second light-emitting diodes. The luminous efficacy of the second light-emitting diode is greater than that of the first light-emitting diode. The reflector has a second reflective surface that is away from the first reflective surface. Along the first direction, the second reflective surface is inclined toward the direction of the second light-emitting diode.

8. The display panel according to claim 7, characterized in that, The first light-emitting diode is divided into a red diode and a green diode, and the second light-emitting diode is a blue diode, which is disposed between the red diode and the green diode.

9. The display panel according to any one of claims 1-5, characterized in that, The space between the cover plate and the back plate is filled with encapsulating adhesive.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1-9.

11. The method for manufacturing a display panel according to claim 1, characterized in that, include: Provide cover plate; A photoresist is formed on one side of the cover plate. The photoresist has a top surface and a bottom surface opposite each other. The bottom surface is connected to the cover plate. A first inclined surface is formed on the side of two adjacent photoresistors on both sides of the first light-emitting diode, which is opposite to the first light-emitting diode. The first inclined surface is located between the top surface and the bottom surface. From the top surface to the bottom surface, the first inclined surface is inclined in a direction away from the first light-emitting diode. A reflector is provided on the first inclined surface; the side of the reflector that is attached to the first inclined surface is the first reflector, which faces the cover plate, and the side of the reflector that is away from the first reflector is the second reflector. Provide back panel; A first light-emitting diode and a second light-emitting diode are disposed on one side of the back plate. The luminous efficacy of the second light-emitting diode is greater than that of the first light-emitting diode. The first light-emitting diode and the second light-emitting diode are disposed alternately. Encapsulating adhesive is applied to one side of the backplate where the first and second light-emitting diodes are located, so that the encapsulating adhesive covers the first and second light-emitting diodes; The side of the cover plate with the photoresist is covered onto the side of the back plate with the first light-emitting diode, so that the encapsulating adhesive covers the cover plate and the photoresist; wherein, the projection of the reflector on the back plate is located between the first light-emitting diode and the second light-emitting diode; along the first direction, the first reflector is inclined away from the first light-emitting diode, and the second reflector is inclined towards the second light-emitting diode.

12. The method for manufacturing a display panel according to claim 11, characterized in that, The step of forming a reflector on the surface of the first inclined plane includes: A reflective layer is formed on all the outer surfaces of the photoresist and on the surface of the cover plate; A second photoresist layer is formed on the surface of the reflective layer, and the second photoresist layer covers the portion of the reflective layer corresponding to the first inclined surface; The second photoresist layer is exposed and developed to form an etch protective layer; The reflective layer is etched to remove the portion of the reflective layer not covered by the etched protective layer, and to retain the portion of the reflective layer covered by the etched protective layer to form the reflector. Remove the etched protective layer.

13. The method for manufacturing a display panel according to claim 12, characterized in that, The formation of a reflective layer on all outer surfaces of the photoresist and on the surface of the cover plate includes: Provide vapor deposition materials; The vapor-deposited material is vapor-deposited onto the cover plate having the photoresist, so as to form a reflective layer on all the outer surfaces of the photoresist and the surface of the cover plate.

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