CN214587760U - Display panel and display device - Google Patents

Abstract

The application discloses display panel, it includes: the flexible circuit board comprises a first surface and a second surface which are oppositely arranged, and the light-emitting units are arranged on the first surface of the flexible circuit board at intervals and are electrically connected with the flexible circuit board. The display panel further includes: the flexible protection layer is arranged on the first surface of the flexible circuit board and covers a plurality of light-emitting units, a plurality of grooves are concavely arranged on the surface of the flexible circuit board, and each groove is arranged on two opposite sides of each light-emitting unit. The display panel has good physical and mechanical strength and large bending amplitude. In addition, the application also discloses a display device with the display panel.

Description

Display panel and display device

Technical Field

The utility model relates to a show technical field, especially relate to a display panel and a display device who has this display panel.

Background

A Light Emitting Diode (LED) is a semiconductor device capable of converting electrical energy into optical energy, and the LED Display screen has high contrast and high color gamut far superior to the existing Liquid Crystal Display (LCD), so the LED Display screen gradually becomes the mainstream Display screen. In terms of the current LED display, the light-emitting plate of the LED display is mainly formed by different numbers of LED light-emitting units arranged in different horizontal and vertical combinations to emit required light.

At present, in order to strengthen and fix the LED light emitting units and prevent collision and damage, glue is required to be filled in the gaps among the LED light emitting units. However, for bendable flexible LED display products, the stiffness requirements for gap-filling glues are high. If the hardness of glue is too small, the problem that the glue loses the protection effect due to poor physical and mechanical strength can occur, and if the hardness of the glue is too large, the bending of a product can be not facilitated, and the bending amplitude of the product can be reduced. Moreover, the greater the hardness of the glue is, the greater the force applied to the LED display screen during bending is, the easier the electric connection between the LED light-emitting unit and the circuit is damaged, and even the lamp beads fall off.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present application aims to provide a display panel, which aims to solve the problems of poor physical and mechanical strength of the LED display screen caused by improper hardness of the glue, reduced bending amplitude of the LED display screen, damage to the electrical connection between the LED light emitting unit and the circuit, and the like.

A display panel, comprising: a plurality of luminescence unit and flexible circuit board, flexible circuit board includes relative first surface and the second surface that sets up, and is a plurality of luminescence unit interval set up in flexible circuit board on the first surface, and with flexible circuit board electric connection, display panel still includes: the flexible protection layer is arranged on the first surface of the flexible circuit board and covers a plurality of light-emitting units, a plurality of grooves are concavely arranged on the surface of the flexible circuit board, and each groove is arranged on two opposite sides of each light-emitting unit.

In summary, the display panel has a positive protection effect by arranging the flexible protection layer which can be in a zigzag wrapping structure as a whole, so that the connection degree between the light-emitting units is blocked, and the stretching force and the repulsive force applied to the display panel during bending are reduced. Therefore, the display panel can protect the binding strength of the light-emitting unit and is also beneficial to bending deformation. Moreover, the electric connection between the light-emitting unit and the connecting circuit is not easy to be damaged, and the falling off of the lamp beads is effectively avoided.

Optionally, the display panel further includes an adhesive layer disposed between the first surface of the flexible circuit board and the flexible protection layer.

Optionally, the display panel further includes a first elastic layer, and the first elastic layer is disposed on a surface of each of the light emitting units, the surface being opposite to the first surface, and is covered by the flexible protective layer.

Optionally, the display panel further includes a second elastic layer, the second elastic layer is integrally disposed between the light emitting unit and the flexible protection layer and meanderingly wraps the light emitting unit, and an extending direction of the second elastic layer is the same as the flexible protection layer.

Optionally, the display panel further includes a filling layer disposed in the groove in the flexible protection layer.

Optionally, the display panel further includes a reinforcing protective coating, the reinforcing protective coating is disposed between the light emitting unit and the flexible protective layer and wraps the light emitting unit in a zigzag manner, and an extending direction of the reinforcing protective coating is the same as that of the flexible protective layer.

Optionally, the display panel further includes a functional coating layer disposed on the filling layer and the flexible protection layer.

Optionally, the display panel further includes a functional coating, the functional coating is zigzag-coated on the upper surface of the flexible protection layer and attached to the inner wall of the groove, and the extending direction of the functional coating is the same as that of the flexible protection layer.

Optionally, the flexible protection layer is a transparent layer flexible film layer or a translucent layer flexible film layer, and the thickness of the reinforcing protection coating is less than 20 um.

In the display panel, the whole flexible protection layer can be of a zigzag coating structure and is used for protecting the binding strength of each light-emitting unit and simultaneously facilitating reduction of tensile force and repulsive force applied between the light-emitting units when the display panel is deformed and bent.

Based on the same utility model concept, this application still provides a display device, and it includes foretell display panel.

In summary, the display panel can protect the binding strength of the light emitting unit and is also beneficial to bending deformation. Moreover, the electric connection between the light-emitting unit and the connecting circuit is not easy to be damaged, and the falling off of the lamp beads is effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 7 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 9 is a schematic structural diagram of another display panel provided in the embodiment of the present application;

fig. 10 is a schematic structural diagram of another display panel provided in this embodiment of the present application;

fig. 11 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the present disclosure.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). Directional phrases used in this application, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the application and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. It should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the drawings are used for distinguishing between different objects and not for describing a particular order.

Furthermore, the terms "comprises," "comprising," "includes," "including," or "including," when used in this application, specify the presence of stated features, operations, elements, and/or the like, but do not limit one or more other features, operations, elements, and/or the like. Furthermore, the terms "comprises" or "comprising" indicate the presence of the respective features, numbers, steps, operations, elements, components or combinations thereof disclosed in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components or combinations thereof, and are intended to cover non-exclusive inclusions. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

For the Light Emitting Diode (LED) that can be commercialized at present, the Light Emitting panel of the LED display screen is formed by different vertical and horizontal combinations of different numbers of LED Light Emitting units, and usually, in order to strengthen the fixed LED Light Emitting unit and prevent the collision damage, glue filling needs to be performed to the gap between the LED Light Emitting units, but for the flexible LED display product, the requirement for the hardness of the glue for gap filling is higher. For example, if the hardness of the too soft glue is low, the physical and mechanical strength difference can occur, so that the positive protection effect of the glue is lost; if the glue is too hard, the bending of the product is not facilitated, and the bending amplitude of the product is reduced. Moreover, the greater the hardness of the glue is, the greater the force applied to the LED display screen during bending is, the easier the electric connection between the LED and the circuit is damaged, and therefore the lamp beads fall off. Therefore, how to fix and protect the LED light-emitting unit in the flexible LED display product is a problem that people need to solve urgently in life.

The present application hopes to provide a solution to the above technical problem, which can solve the problems of poor physical and mechanical strength of the LED display screen caused by improper hardness of the glue, reduced bendable amplitude of the LED display screen, damage to the electrical connection between the LED light-emitting unit and the circuit, and the like. The details of which will be set forth in the examples that follow. The detailed description of the present application is directed to a display panel and a display device having the same.

Please refer to fig. 1, which is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. As shown in fig. 1, the present application provides a display panel 100, which includes a flexible protection layer 110, a plurality of light emitting units 120, a flexible circuit board 130, and a driving circuit 140. The flexible circuit board 130 includes a first surface 131 and a second surface 133 that are disposed opposite to each other, the plurality of light emitting units 120 are disposed on the first surface 131 of the flexible circuit board 130 at intervals and electrically connected to the flexible circuit board 130, the driving circuit 140 is disposed on the second surface 133 of the flexible circuit board 130 and electrically connected to the flexible circuit board 130, and the flexible protection layer 110 is disposed on the first surface 131 of the flexible circuit board 130 and covers the plurality of light emitting units 120.

In the embodiment of the present application, the flexible protection layer 110 covers the plurality of light emitting units 120, a plurality of grooves 1101 are recessed in the upper surface of the flexible protection layer 110, and one groove 1101 is disposed on two opposite sides of each light emitting unit 120. The flexible protective layer may be a zigzag wrapping structure for protecting the binding strength of each light emitting unit 120, and is also beneficial to reducing the tensile and repulsive forces between the light emitting units 120 when the display panel 100 is deformed and bent. It should be noted here that the upper surface of the flexible protection layer 110 is a surface of the flexible protection layer 110 opposite to the flexible circuit board 130, and accordingly, a surface of the flexible protection layer 110 opposite to the flexible circuit board 130 may be defined as a lower surface.

In the embodiment of the present application, the flexible protection layer 110 may be a transparent layer flexible film layer, and may also be a translucent layer flexible film layer. Specifically, the flexible protection layer 110 may be, but is not limited to: polyurethane elastomer films, silicone films, flexible modified epoxy films, and the like.

In the embodiment of the present application, the hardness of the flexible protection layer 110 is greater than 85A, and the tensile strength is greater than 20 MPa. The flexible protection layer 110 may be formed by mold pressing, vacuum hot pressing, vacuum forming, and the like, and for simplicity, the embodiment of the present application is not further limited.

In the embodiment, the light emitting unit 120 may be an LED light emitting device, and a plurality of the light emitting units 120 are arranged in a matrix on the first surface 131 of the flexible circuit board 130. Specifically, the light emitting units 120 may be formed by different horizontal and vertical combinations, and may have a bottom portion to which a connection structure such as a solder joint and a pad may be bonded, and may be bonded to the flexible circuit board 130 through solder paste. In the embodiment of the present application, the light emitting unit 120 may also be a Surface Mounted Device (SMD) packaged LED device, an Integrated Matrix Device (IMD) Integrated packaged LED device, or a Chip On Board (COB) packaged LED device.

In the embodiment of the present application, the Flexible Circuit board 130 may be a Flexible Printed Circuit (FPC), a Flexible conductive thin film Circuit, a Flexible driving Circuit, or the like. In the embodiment of the present invention, the driving Circuit 140 may include a Driver Integrated Circuit (Driver IC) and an electronic component, which is used for driving the light emitting unit 120 to emit light normally.

In summary, the display panel 100 is provided with the flexible protection layer 110, which may be a zigzag wrapping structure as a whole, to play a role of front protection, so as to block the connection degree between the light emitting units 120, thereby reducing the stretching and repelling force applied when the display panel 100 is bent. Therefore, the display panel 100 of the present application may protect the binding strength of the light emitting unit 120 and also facilitate bending deformation. Moreover, the electrical connection between the light emitting unit 120 and the connection circuit is not easily damaged, thereby effectively avoiding the falling off of the lamp beads.

Referring to fig. 2, fig. 2 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 200 shown in fig. 2 and the display panel 100 shown in fig. 1 are: the display panel 200 shown in fig. 2 further includes an adhesive layer 111 disposed between the flexible circuit board 130 and the flexible protection layer 110, wherein the adhesive layer 111 is specifically disposed between the first surface 111 of the flexible circuit board 130 and the flexible protection layer 110, and is used to improve the bonding composite strength between the flexible circuit board 130 and the flexible protection layer 110, so as to avoid package peeling when bending; the display panel 100 shown in fig. 1 is not provided with the adhesive layer 111. That is, the display panel 200 shown in fig. 2 is mainly different from the display panel 100 shown in fig. 1 in that: the display panel 200 shown in fig. 2 is provided with the adhesive layer 111, whereas the display panel 100 shown in fig. 1 is not provided with the adhesive layer 111.

In the present embodiment, the adhesive layer 111 in the display panel 200 shown in fig. 2 may be a coating layer such as a thermoplastic resin paint or ink, a hot melt adhesive layer, or a high-viscosity material layer such as an Ultraviolet (UV) curable adhesive layer, which is not particularly limited in the present application.

Referring to fig. 3, fig. 3 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 300 shown in fig. 3 and the display panel 200 shown in fig. 2 are: the display panel 300 shown in fig. 3 further includes a first elastic layer 112 disposed on the light emitting units 120, wherein the first elastic layer 112 is disposed on a surface of each light emitting unit 120 opposite to the first surface 131, and is covered by the flexible protection layer 110, and is used for buffering a direct tearing force applied to the front surface of the light emitting unit 120 when the flexible protection layer 110 is bent and deformed, so as to protect the strength of the binding structure of the light emitting unit 120; the first elastic layer 112 is not disposed in the display panel 200 shown in fig. 2. That is, the main difference between the display panel 300 shown in fig. 3 and the display panel 200 shown in fig. 2 is that: the display panel 300 shown in fig. 3 is provided with the first elastic layer 112, and the display panel 200 shown in fig. 2 is not provided with the first elastic layer 112.

In this embodiment, the first elastic layer 112 in the display panel 300 shown in fig. 3 may be a flexible epoxy, polyurethane, silicone sealant layer, or the like, and is preferably a low-hardness high-elasticity gel layer, which is not particularly limited in this application.

Referring to fig. 4, fig. 4 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 400 shown in fig. 4 and the display panel 300 shown in fig. 3 are: the second elastic layer 113 in the display panel 400 shown in fig. 4 is disposed between the light emitting unit 120 and the flexible protection layer 110, and meanders to cover the light emitting unit 120; in the display panel 300 shown in fig. 3, the first elastic layer 112 is disposed on a surface of the light emitting unit 120 opposite to the first surface 131. That is, the main difference between the display panel 300 shown in fig. 4 and the display panel 200 shown in fig. 2 is that: the positions of the elastic layers are different from each other, and the whole second elastic layer 113 shown in fig. 4 is disposed between the light emitting unit 120 and the flexible protective layer 110 and wraps the light emitting unit 120 in a zigzag manner, so that the extending direction of the second elastic layer 113 is the same as that of the flexible protective layer 110, that is, the whole second elastic layer 113 may also have a zigzag wrapping structure.

Referring to fig. 5, fig. 5 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 500 shown in fig. 5 and the display panel 100 shown in fig. 1 are: the groove 1101 in the flexible protection layer 110 in the display panel 500 shown in fig. 5 is filled with a filling layer 114, and the filling layer 114 can be used to reduce the stretching and repelling force applied when the display panel 100 is bent; the filling layer 114 shown in fig. 5 is not disposed in the display panel 100 shown in fig. 1. That is, the display panel 500 shown in fig. 5 is mainly different from the display panel 100 shown in fig. 1 in that: the display panel 500 shown in fig. 5 is provided with the filling layer 114, while the display panel 100 shown in fig. 1 is not provided with the filling layer 114.

In this embodiment, the filling layer 114 in the display panel 500 shown in fig. 5 may be an elastic encapsulating material, a material having an internal space capable of being compressed and extruded, an elastic expansion body buffer body formed by injecting, foaming and curing a polyurethane or silicone foamed elastomer glue, or a high-viscosity material layer such as an Ultraviolet (UV) curable glue layer. The preferred hardness of the filler layer 114 is greater than 30A and less than 85A, and the tensile strength is greater than 6 MPa. The filling layer 114 may be transparent or dark, and is not limited in this application.

Referring to fig. 6, fig. 6 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 600 shown in fig. 6 and the display panel 500 shown in fig. 5 are: the display panel 600 shown in fig. 6 further includes a reinforcing protective coating 115, the reinforcing protective coating 115 is disposed between the light emitting unit 120 and the flexible protective layer 110 and wraps the light emitting unit 120 in a zigzag manner, the reinforcing protective coating 115 is used for protecting the electrical connection of the flexible circuit board 130 and reinforcing the connection strength between the light emitting unit 120 and the flexible circuit board 130; while the display panel 500 shown in fig. 5 is not provided with the reinforcing protective coating 115 shown in fig. 6. That is, the display panel 600 shown in fig. 6 is mainly different from the display panel 500 shown in fig. 5 in that: the display panel 600 shown in fig. 6 is provided with the reinforced protective coating 115, and the display panel 500 shown in fig. 5 is not provided with the reinforced protective coating 115, wherein the reinforced protective coating 115 of the display panel 600 shown in fig. 6 is entirely disposed between the light emitting unit 120 and the flexible protective layer 110 and meanders to wrap the light emitting unit 120, and therefore, the extending direction of the reinforced protective coating 115 is the same as that of the flexible protective layer 110, that is, the reinforced protective coating 115 may also be a meanders to wrap entirely.

In this embodiment, the reinforcing protective coating 115 in the display panel 600 shown in fig. 6 may be formed by curing various resin coatings, for example, epoxy resin coatings, polyurethane resin coatings, polyester resin coatings, silicone resin coatings, acrylic resin coatings, and the like. The curing thickness of the reinforced protective coating 115 is less than 20um, the liquid viscosity of the low-viscosity resin coating is less than 2000mpa.s, the protective coating can be formed by drying and curing in a manner of spraying various low-viscosity resin coatings, or the protective coating can be formed by coating various resin coatings on the flexible protective layer 110 and then coating and attaching the flexible protective layer to the surface of the light-emitting unit 120 in a manner of mold pressing, vacuum hot pressing, vacuum forming, and the like, which is not limited in the present application.

Referring to fig. 7, fig. 7 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 700 shown in fig. 7 and the display panel 600 shown in fig. 6 are: the aperture of the groove 1101 on the flexible protection layer 110 in the display panel 700 shown in fig. 7 is smaller than the aperture of the groove 1101 on the flexible protection layer 110 in the display panel 600 shown in fig. 6, when the aperture of the groove on the flexible protection layer 110 is smaller than a preset value, it is beneficial to reduce the stretching and repelling forces applied when the light emitting units 120 are bent and deformed, and the flexible protection layer 110 in the display panel 700 shown in fig. 7 does not need to be provided with the filling layer 114, wherein the preset value is set according to the actual size requirement of the display panel 100, and the present application does not specifically limit this; and the filling layer 114 is filled at the position of the groove in the flexible protection layer 110 in the display panel 600 shown in fig. 6. That is, the display panel 700 shown in fig. 7 is mainly different from the display panel 600 shown in fig. 6 in that: the display panel 700 shown in fig. 7 is not provided with the filling layer 114, whereas the display panel 600 shown in fig. 6 is provided with the filling layer 114.

Referring to fig. 8, fig. 8 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 800 shown in fig. 8 and the display panel 500 shown in fig. 5 are: the display panel 800 shown in fig. 8 further includes a functional coating 116, the functional coating 116 is disposed on the filling layer 114 and the flexible protection layer 110, and the functional coating 116 is used to improve the light-emitting angle and the soft light-emitting display effect; whereas the functional coating 116 shown in fig. 8 is not provided in the display panel 500 shown in fig. 5. That is, the main differences between the display panel 800 shown in fig. 8 and the display panel 500 shown in fig. 5 are: the display panel 800 shown in fig. 8 is provided with the functional coating 116, whereas the display panel 500 shown in fig. 5 is not provided with the functional coating 116.

In this embodiment, the functional coating 116 in the display panel 800 shown in fig. 8 is preferably organic composite micro-nano particles, and the functional coatings such as Anti-Reflection (AR), Anti-Glare (AG), Anti-Fingerprint (AF), matte and hardening, optical, wear-resistant, and self-repairing coatings can be formed by spraying corresponding functional ink coatings, which is not limited in this application.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 900 shown in fig. 9 and the display panel 600 shown in fig. 6 are: the display panel 900 shown in fig. 9 further includes a functional coating 116, the functional coating 116 is disposed on the filling layer 114 and the flexible protection layer 110, and the functional coating 116 is used to improve the light-emitting angle and the soft light-emitting display effect; whereas the functional coating 116 shown in fig. 9 is not provided in the display panel 600 shown in fig. 6. That is, the main differences between the display panel 900 shown in fig. 9 and the display panel 600 shown in fig. 6 are: the display panel 900 of fig. 9 is provided with the functional coating 116, whereas the display panel 600 of fig. 6 is not provided with the functional coating 116.

Referring to fig. 10, fig. 10 is a schematic structural diagram of another display panel provided in the present application. The main differences between the display panel 1000 shown in fig. 10 and the display panel 700 shown in fig. 7 are: the display panel 1000 shown in fig. 10 further includes a functional coating 116, the functional coating 116 is zigzag-coated on the surface of the flexible protection layer 110 and attached to the inner wall of the groove 1101, that is, the functional coating 116 of the display panel 1000 is zigzag-coated on the entire surface of the flexible protection layer 110, and the functional coating 116 is used for improving a light-emitting angle and a soft light-emitting display effect; whereas the functional coating 116 shown in fig. 10 is not provided in the display panel 700 shown in fig. 7. That is, the main differences between the display panel 1000 shown in fig. 10 and the display panel 700 shown in fig. 7 are: the display panel 1000 shown in fig. 10 is provided with the functional coating 116, whereas the display panel 700 shown in fig. 7 is not provided with the functional coating 116. The functional coating 116 of the display panel 1000 shown in fig. 10 is entirely attached to the upper surface of the flexible protection layer 110 and is attached to the inner wall of the groove 1101, that is, the functional coating 116 of the display panel 1000 is arranged on the entire surface of the flexible protection layer 110 in a zigzag wrapping manner, so that the extending direction of the functional coating 116 is the same as that of the flexible protection layer 110, that is, the functional coating 116 may also be entirely in a zigzag wrapping structure.

Please refer to fig. 11, which is a flowchart illustrating a method for manufacturing a display panel according to an embodiment of the present application. The method for manufacturing the display panel shown in fig. 11 is applied to the display panel shown in any one of fig. 1 to 10, and is used for fixing and protecting the LED light-emitting unit in the flexible LED display product. The method for manufacturing a display panel according to the embodiment of the present invention is not limited to the steps and the sequence in the flowchart shown in fig. 11. Steps in the illustrated flowcharts may be added, removed, or changed in order according to various needs. In an embodiment of the present application, a method for manufacturing a display panel at least includes the following steps:

step 410, a display panel module is provided, which includes the light emitting unit 120, the flexible circuit board 130 and the driving circuit 140.

Specifically, in this embodiment, the display panel module may be an LED display panel, which is prepared for the formation of a subsequent coating layer.

Step 420, preparing a polyurethane elastomer resin solution.

Specifically, in the present embodiment, light scattering particles such as organic composite nanoparticles are dispersed in the polyurethane elastomer resin solution, which provides for the formation of the flexible protective layer 110.

And 430, coating or spraying the polyurethane elastomer resin solution on a release film and curing to generate the flexible protective layer 110.

Specifically, in this embodiment, the flexible protection layer 110 is a polyurethane elastomer film formed by coating or spraying a polyurethane elastomer resin solution on a release film and curing the polyurethane elastomer resin solution.

It is understood that the display panel 100 shown in fig. 1 can be generated by the manufacturing method of the above steps 410-430. On the basis of the display panel 100 shown in fig. 1, the manufacturing method may generate the display panel 200 shown in fig. 2 by disposing the adhesive layer 111 between the flexible circuit board 130 and the flexible protection layer 110. On the basis of the display panel 200 shown in fig. 2, the manufacturing method may generate the display panel 300 shown in fig. 3 by disposing the first elastic layer 112 on the light emitting unit 120. On the basis of the display panel 200 shown in fig. 2, the manufacturing method may generate the display panel 400 shown in fig. 4 by disposing the second elastic layer 113 between the light emitting unit 120 and the flexible protection layer 110, and the second elastic layer 113 zigzag-wrapping the light emitting unit 120.

Step 440, forming a reinforcing protective coating 115 on the flexible protective layer 110.

Specifically, in this embodiment, the reinforced protective coating 115 may be an epoxy resin coating, a polyurethane resin coating, a polyester resin coating, a silicone resin coating, an acrylic resin coating, or the like, and is coated on the flexible protective layer 110, wherein the thickness of the reinforced protective coating 115 is preferably less than 20 um.

And step 450, integrally attaching the flexible protection layer 110 and the reinforcing protection coating 115 to the display panel module.

Specifically, in the present embodiment, the LED display panel faces downward, and the flexible protective layer 110 and the reinforcing protective coating 115 face upward.

Step 460, forming a filling layer 114 at the groove 1101 on the flexible protection layer 110.

Specifically, as shown in fig. 6, in this embodiment, the filling layer 114 may be a polyurethane potting glue, a flexible modified epoxy potting glue, an organic silicon potting glue, or the like, and the filling layer 114 may be formed by filling and curing the potting glue, or may be formed by filling a powder coating and melting and curing the powder coating.

Meanwhile, as shown in fig. 7, when the caliber of the groove 1101 on the flexible protection layer 110 is small, the filling layer 114 may not be added.

It is understood that the display panel shown in fig. 5-7 can be produced by the above-mentioned manufacturing method of steps 410-460.

Step 470, forming a functional coating 116 on the flexible protective layer 110.

Specifically, as shown in fig. 8 and 9, the functional coating 116 is disposed on the filling layer 114 and the flexible protection layer 110, and is used for improving a light emitting angle and a soft light emitting display effect. In this embodiment, the functional coating 116 is preferably organic composite micro-nano particles, and can be formed into a hardening, optical, wear-resistant, self-repairing functional coating such as Anti-Reflection (AR), Anti-Glare (AG), Anti-Fingerprint (AF), matte and the like by spraying a corresponding functional ink coating.

Specifically, as shown in fig. 10, the functional coating 116 is integrally attached to the surface of the flexible protection layer 110 and attached to the inner wall of the groove 1101, that is, the functional coating 116 of the display panel 1000 is zigzag wrapped on the entire surface of the flexible protection layer 110. In this embodiment, the functional coating 116 is preferably organic composite micro-nano particles, and may be formed by spraying a corresponding functional ink coating to form a hardening, optical, wear-resistant, self-repairing functional coating such as Anti-Reflection (AR), Anti-Glare (AG), Anti-Fingerprint (AF), matte, and the like.

It is understood that the display panel shown in fig. 8-10 can be produced by the above-mentioned manufacturing method of step 410-470.

The embodiment of the present invention further provides a display device, which includes the display panel in the embodiment shown in fig. 1 to 10. Wherein the display device includes, but is not limited to: any electronic device or component with a display function, such as a mobile phone, a tablet computer, a navigator, a display, etc., is not particularly limited in this application.

The flow chart described in the present invention is merely an example, and various modifications and changes can be made to the drawings or the steps in the present invention without departing from the spirit of the present invention. For instance, the steps may be performed in a differing order, or steps may be added, deleted or modified. It will be understood by those skilled in the art that all or part of the above-described embodiments may be implemented and equivalents thereof may be made to the claims of the present invention while remaining within the scope of the invention.

It should be understood that the application of the present application is not limited to the above examples, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.

Claims (10)

1. A display panel, comprising: a plurality of luminescence unit and flexible circuit board, flexible circuit board includes relative first surface and the second surface that sets up, and is a plurality of luminescence unit interval set up in flexible circuit board on the first surface, and with flexible circuit board electric connection, its characterized in that, display panel still includes: the flexible protection layer is arranged on the first surface of the flexible circuit board and covers a plurality of light-emitting units, a plurality of grooves are concavely arranged on the surface of the flexible circuit board, and each groove is arranged on two opposite sides of each light-emitting unit.

2. The display panel of claim 1, further comprising an adhesive layer disposed between the first surface of the flexible circuit board and the flexible protective layer.

3. The display panel of claim 2, wherein the display panel further comprises a first elastic layer disposed on a surface of each of the light emitting units opposite to the first surface and covered by the flexible protection layer.

4. The display panel according to claim 2, wherein the display panel further comprises a second elastic layer, the second elastic layer is integrally disposed between the light emitting unit and the flexible protective layer and meanders around the light emitting unit, and the second elastic layer extends in the same direction as the flexible protective layer.

5. The display panel of claim 1, further comprising a fill layer disposed within the groove in the flexible protective layer.

6. The display panel according to claim 5, wherein the display panel further comprises a reinforcing protective coating layer disposed between the light emitting unit and the flexible protective layer and wrapping the light emitting unit in a zigzag manner, and the reinforcing protective coating layer extends in the same direction as the flexible protective layer.

7. The display panel of claim 5 or 6, wherein the display panel further comprises a functional coating disposed on the filler layer and the flexible protective layer.

8. The display panel according to any one of claims 1 to 4, wherein the display panel further comprises a functional coating, the functional coating is zigzag-coated on the upper surface of the flexible protection layer and attached to the inner wall of the groove, and the extending direction of the functional coating is the same as the flexible protection layer.

9. The display panel of claim 6, wherein the flexible protective layer is a transparent layer flexible film layer or a translucent layer flexible film layer, and the thickness of the reinforcing protective coating is less than 20 um.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.

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