CN116339015A

CN116339015A - Light-emitting panel and display device

Info

Publication number: CN116339015A
Application number: CN202310376332.9A
Authority: CN
Inventors: 王然龙; 李荣荣
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-06-27

Abstract

The application relates to a light-emitting panel and a display device. The light-emitting panel includes: the driving substrate comprises a plurality of rectangular partitions which are distributed in an array and are sequentially connected, and the endpoints of the rectangular partitions form a first node and a second node which are alternately arranged along the row direction and the column direction respectively; and the light emitting components are arranged at the first nodes of the driving substrate in a one-to-one correspondence manner, and comprise light emitting elements and light expanding structures arranged around the light emitting elements, wherein the light expanding structures are used for emitting light rays emitted by the light emitting elements along the light emitting direction and diffusing the light rays along a plurality of rectangular subareas on the periphery of the light emitting elements. The light-emitting panel can increase the brightness radiation range of a single light-emitting element, can reduce the use quantity of the light-emitting element and reduce the cost while realizing high partition.

Description

Light-emitting panel and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a light emitting panel and a display device.

Background

The liquid crystal display panel does not emit light, and a backlight module needs to be arranged to provide enough light sources with uniform brightness and distribution, so that the liquid crystal display panel can normally display images. The display effect of the liquid crystal display panel is determined to a great extent by the number of the partitions of the backlight module, and the better the dynamic dimming effect is, the better the bright and dark details can be displayed. However, the current industry generally increases the number of zones by increasing the number of light emitting elements and tends to be a zone-by-zone lamp (i.e., each light emitting element controls brightness independently). However, increasing the number of light emitting elements greatly increases the manufacturing cost.

Disclosure of Invention

The application aims to provide a light-emitting panel and a display device, which can enlarge the brightness radiation range of a single light-emitting element, realize high partition and reduce the use quantity of the light-emitting element at the same time, and reduce the cost.

In a first aspect, embodiments of the present application provide a light emitting panel, including: the driving substrate comprises a plurality of rectangular partitions which are distributed in an array and are sequentially connected, and the endpoints of the rectangular partitions form a first node and a second node which are alternately arranged along the row direction and the column direction respectively; and the light emitting components are arranged at the first nodes of the driving substrate in a one-to-one correspondence manner, and comprise light emitting elements and light expanding structures arranged around the light emitting elements, wherein the light expanding structures are used for emitting light rays emitted by the light emitting elements along the light emitting direction and diffusing the light rays along a plurality of rectangular subareas on the periphery of the light emitting elements.

In one possible embodiment, the light spreading structure comprises: a wall provided on the outer peripheral side of the light emitting element; the first transparent packaging adhesive covers the light-emitting element; and the second transparent packaging glue is used for covering the first transparent packaging glue and filling the space between the enclosing wall and the first transparent packaging glue, and the refractive index of the second transparent packaging glue is higher than that of the first transparent packaging glue.

In one possible implementation manner, the first transparent packaging adhesive comprises a first packaging part and a second packaging part which are sequentially arranged along the light emitting direction of the light emitting element, wherein the first packaging part is a column body for covering the light emitting element, and the height of the first packaging part is less than 1/2 of the height of the enclosing wall; the second packaging part is a cambered surface body covering the first packaging part, and the vertex of the cambered surface body is lower than the height of the enclosing wall.

In one possible embodiment, the refractive index n1<1.2 of the first transparent encapsulant and the refractive index n2>1.6 of the second transparent encapsulant.

In one possible embodiment, the height of the second transparent encapsulation glue is flush with the height of the perimeter wall.

In one possible embodiment, the second transparent encapsulation glue is filled with a scattering material for scattering light.

In one possible embodiment, the light emitting element is a micro light emitting diode or a sub-millimeter light emitting diode.

In one possible embodiment, the surface of the driving substrate along the light emitting direction is coated with a first reflective layer, and the front projection of the first reflective layer on the driving substrate and the front projection of the light emitting component on the driving substrate do not overlap each other.

In one possible embodiment, the surface of the perimeter wall is coated with a second reflective layer.

In a second aspect, embodiments of the present application further provide a display device including the light-emitting panel as described above.

According to the light emitting panel and the display device provided in the embodiments of the present application, the light emitting panel includes: the driving substrate comprises a plurality of rectangular partitions which are distributed in an array and are sequentially connected, and the endpoints of the rectangular partitions form a first node and a second node which are alternately arranged along the row direction and the column direction respectively; and the light emitting components are arranged at the first nodes of the driving circuit substrate in a one-to-one correspondence manner, and each light emitting component comprises a light emitting element and a light expansion structure arranged around the light emitting element, and the light expansion structure is used for emitting light rays emitted by the light emitting element along the light emitting direction and diffusing the light rays along a plurality of rectangular subareas on the periphery of the light emitting element. Therefore, the brightness radiation range of a single light-emitting element can be enlarged, when any one of the light-emitting elements fails and is not bright, the dynamic dimming effect of a plurality of rectangular partitions on the periphery of a failed device can be realized by controlling the brightness of a plurality of normal light-emitting elements on the periphery of the failed light-emitting element, the use quantity of the light-emitting elements can be reduced while high partitions are realized, and the cost and the failure rate are greatly reduced.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the drawings, like parts are designated with like reference numerals. The drawings are not drawn to scale, but are merely for illustrating relative positional relationships, and the layer thicknesses of certain portions are exaggerated in order to facilitate understanding, and the layer thicknesses in the drawings do not represent the actual layer thickness relationships.

Fig. 1 is a schematic top view of a light emitting panel according to a first embodiment of the present disclosure;

FIG. 2 is a schematic view of the structure and light path of the light emitting assembly of FIG. 1;

fig. 3 is a schematic top view of a light emitting panel according to a second embodiment of the present disclosure;

fig. 4 shows a schematic structural diagram of a display device according to a third embodiment of the present application.

Reference numerals illustrate:

1. a light emitting panel;

10. a driving substrate; AA. Rectangular partitions; 101. a first node; 102. a second node; 103. a first reflective layer;

11. a light emitting assembly; 111. a light emitting element; 112. a light spreading structure; 1121. a first transparent encapsulation adhesive; f1, a first encapsulation part; f2, a second encapsulation part; 1122. a second transparent encapsulation adhesive; 1123. a wall; 1124. a second reflective layer;

100. a backlight module; 110. a back plate; 120. an optical component; 200. a liquid crystal display panel.

Detailed Description

Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing an example of the present application. In the drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present application; also, the size of the region structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

First embodiment

Fig. 1 is a schematic top view of a light emitting panel according to a first embodiment of the present disclosure; fig. 2 shows a schematic diagram of the structure and the optical path of the light emitting device in fig. 1.

As shown in fig. 1 and 2, a first embodiment of the present application proposes a light emitting panel 1 including a driving substrate 10 and a plurality of light emitting modules 11.

The driving substrate 10 includes a plurality of rectangular partitions AA distributed in an array and connected in sequence, and end points of the plurality of rectangular partitions AA form first nodes 101 and second nodes 102 alternately arranged in a row direction and a column direction, respectively.

The light emitting components 11 are disposed at the first nodes 101 of the driving substrate 10 in a one-to-one correspondence manner, and the light emitting components 11 include a light emitting element 111 and a light spreading structure 112 disposed around the light emitting element 111, wherein the light spreading structure 112 is configured to emit light emitted by the light emitting element 111 along a light emitting direction and spread along a plurality of rectangular areas AA on a peripheral side thereof. Four rectangular partitions AA are provided on the peripheral side of each light emitting assembly 11.

Alternatively, the driving substrate 10 is a hard Printed Circuit Board (PCB) to which the light emitting element 111 is soldered. Optionally, the driving substrate 10 is a glass substrate, the light emitting element 111 is adhered to the driving substrate 10 by using COB (Chips on Board) or COG (Chips on Glass) technology through conductive adhesive or non-conductive adhesive, and then wire bonding is performed to realize electrical connection, so that a bracket, gold wires and the like are not needed, less materials are used, primary reflow soldering can be reduced in the process, and secondary reflow risks are avoided. The light emitting element 111 may be a blue light chip having a dominant wavelength in the range of 440nm to 470 nm.

As shown in fig. 1, the driving substrate 10 includes a plurality of rectangular partitions AA distributed in an array and sequentially connected, endpoints of the plurality of rectangular partitions AA form a first node 101 and a second node 102 that are alternately arranged along a row direction and a column direction, the plurality of light emitting components 11 are disposed at the plurality of first nodes 101 of the driving substrate 10 in a one-to-one correspondence manner, and light emitted by each light emitting component 11 can radiate to four rectangular partitions AA on a peripheral side thereof, so that brightness of each rectangular partition AA can be formed by overlapping radiation light rays of two diagonally distributed light emitting components 11, thereby improving overall brightness of the backlight module 100. Since the light emitting components 11 are disposed only at part of the nodes on the driving substrate 10, and the total number of the rectangular partitions AA is unchanged, compared with the technical scheme in the related art that each rectangular AA is correspondingly provided with one light emitting element 111, the number of the light emitting elements 111 is greatly reduced, which is beneficial to reducing the cost.

Further, when any one of the light emitting elements 111 fails and is not illuminated, the four rectangular partitions AA on the periphery of the failed light emitting element 111 can be respectively illuminated by the four light emitting elements 111 in normal operation adjacent to the periphery of the failed light emitting element, so as to control the light emitting brightness of the four light emitting elements 111 in normal operation, for example, to increase the brightness, so that the brightness is kept as consistent as possible with the brightness in normal operation, and the dynamic dimming effect of the four rectangular partitions AA on the periphery of the failed device can be realized without affecting the overall light emitting effect of the light emitting panel 1, thereby greatly reducing the failure rate.

Taking the black-shaded, faulty light emitting element denoted by E in fig. 1 as an example, when the faulty light emitting element E is not bright, four rectangular partitions AA on the peripheral side thereof are in a dark state. However, since the four light emitting elements M1 to M4 on the peripheral side of the failed light emitting element E emit light normally, the light rays emitted by the light emitting elements M1 to M4 can be radiated to the four rectangular partitions AA in a one-to-one correspondence manner, so as to avoid dark state, and the dynamic dimming effect of the four rectangular partitions AA on the peripheral side of the failed light emitting element E can be achieved by controlling the light emitting brightness of the light emitting elements M1 to M4, so that the brightness is kept as consistent as possible with the brightness in normal operation, and the overall light emitting effect of the light emitting panel 1 is not affected.

According to the light-emitting panel 1 provided by the embodiment of the application, the light-emitting panel comprises a driving substrate 10 and a plurality of light-emitting assemblies 11, wherein the driving substrate 10 comprises a plurality of rectangular partitions AA which are distributed in an array manner and are sequentially connected, and end points of the rectangular partitions AA form a first node 101 and a second node 102 which are alternately arranged along a row direction and a column direction respectively; the light emitting components 11 are arranged at the first nodes 101 of the driving circuit substrate 10 in a one-to-one correspondence manner; the light emitting assembly 11 includes a light emitting element 111 and a light spreading structure 112 disposed around the light emitting element 111, the light spreading structure 112 being configured to emit light emitted from the light emitting element 111 in a light emitting direction and spread along a plurality of rectangular partitions AA on a peripheral side thereof. Therefore, the brightness radiation range of the single light emitting element 111 can be enlarged, when any one of the light emitting elements 111 fails and is not bright, the dynamic dimming effect of the rectangular partitions AA on the periphery of the failed light emitting element 111 can be realized by controlling the brightness of the normal light emitting elements 111 on the periphery of the failed light emitting element 111, the use quantity of the light emitting elements 111 can be reduced while high partitions are realized, and the cost and the failure rate are greatly reduced.

The specific structure of the light emitting panel 1 provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

In some embodiments, the light spreading structure 112 includes a first transparent encapsulant 1121, a second transparent encapsulant 1122, and an enclosure 1123.

The enclosing wall 1123 is disposed on the outer peripheral side of the light emitting element 111, the first transparent packaging adhesive 1121 covers the light emitting element 111, and the second transparent packaging adhesive 1122 covers the first transparent packaging adhesive 1121 and is filled between the enclosing wall 1123 and the first transparent packaging adhesive 1121, wherein the refractive index of the second transparent packaging adhesive 1122 is higher than that of the first transparent packaging adhesive 1121.

Alternatively, the material of the first transparent packaging adhesive 1121 or the second transparent packaging adhesive 1122 may be an ultraviolet light curing adhesive (UV adhesive) or a thermosetting adhesive. Optionally, the refractive index n1<1.2 of the first transparent encapsulant 1121, and the refractive index n2>1.6 of the second transparent encapsulant 1122. According to the refraction principle, light rays are refracted when passing through the interface of the first transparent packaging adhesive 1121 with low refractive index and the second transparent packaging adhesive 1122 with high refractive index, and the refracted light rays are diffused outwards around, so that the light rays can cover a plurality of rectangular subareas AA on the periphery side of the light emitting element 111, and the light emitting effect of 1 light emitting element 111 to radiate the plurality of rectangular subareas AA is realized.

As shown in fig. 2, the light emitted from the light emitting element 111 can be divided into three parts: the first light L1 directly passes through the first transparent packaging adhesive 1121 and the second transparent packaging adhesive 1122 to be collimated and emitted; the second light L2 is refracted and spread out from the periphery after passing through the interface of the first transparent encapsulant 1121 and the second transparent encapsulant 1122 with different refractive indexes, thereby expanding the light coverage of the light emitting element 111; the third light L3 is reflected by the surrounding wall 1123 and is concentrated to the right above the light emitting element 111, thereby further improving the light emitting brightness. Therefore, the light expansion effect that one light emitting element 111 covers a plurality of rectangular subareas AA can be realized, the use quantity of the light emitting elements 111 can be reduced while high subareas are realized, and the cost and the failure rate are greatly reduced.

In some embodiments, the first transparent encapsulation adhesive 1121 includes a first encapsulation portion F1 and a second encapsulation portion F2 sequentially disposed along the light emitting direction of the light emitting element 111, the first encapsulation portion F1 being a column covering the light emitting element 111, and having a height less than 1/2 of the height of the enclosure 1123; the second encapsulation portion F2 is a cambered surface body covering the first encapsulation portion F1, and its vertex is lower than the height of the enclosing wall 1123.

As shown in fig. 2, the first transparent encapsulation adhesive 1121 includes a first encapsulation portion F1 and a second encapsulation portion F2 that are sequentially disposed along the light emitting direction of the light emitting element 111, where the pillar structure of the first encapsulation portion F1 can enable light to be reflected back to the right above the light emitting element 111 through the enclosing wall 1123, so as to improve the light emitting brightness. The height of the first packaging part F1 is less than 1/2 of the height of the enclosing wall 1123, so that the height of the second packaging part F2 can be increased, the cambered surface body structure of the second packaging part F2 can completely cover the first transparent packaging adhesive 1121, when light passes through the interface between the cambered surface body and the second transparent packaging adhesive 1122, refraction occurs, the refracted light is diffused outwards all around, and the light coverage of the light-emitting element 111 is enlarged. The vertex of the second encapsulation part F2 is lower than the height of the enclosing wall 1123, and when some light passes through the interface between the cambered surface body and the second transparent encapsulation glue 1122, the refracted light reaches the enclosing wall 1123, and can be reflected and concentrated towards the position right above the light emitting element 111, so that the light emitting brightness of the light emitting panel 1 is further improved.

In some embodiments, the height of the second transparent encapsulant 1122 is flush with the height of the perimeter wall 1123. By the arrangement, light emitted by the light emitting element 111 can be emitted forward along the light emitting direction on one hand, and can be diffused along a plurality of rectangular partitions AA on the periphery of the light emitting element on the other hand, so that the uniformity of visual effect is ensured, and the light utilization rate is improved.

In some embodiments, the second transparent encapsulant 1122 is filled with a scattering material for scattering light. By doing so, the light coverage of the light emitting element 111 can be further increased.

In some embodiments, the light emitting element 111 is a Micro light emitting diode (Micro-LED) or a sub-millimeter light emitting diode (Mini-LED). The light-type energy distribution of the light-emitting element 111 is a lambertian distribution, and the central light energy is the largest. Wherein Micro-LED refers to an LED chip with a grain size below 200 microns, mini-LED refers to an LED chip with a grain size of about 200-300 microns. Mini-LED or Micro-LED can be used as self-luminous element for display, and has the advantages of low power consumption, high brightness, high resolution, high color saturation, rapid reaction speed, long service life, high efficiency and the like.

Optionally, the light emitting element 111 is fabricated on the driving substrate 10 by mass transfer, which is not limited to Wire Bonding (Wire Bonding), flip chip (Flip Chip Bonding), a combination of photolithography and pattern transfer, and the like. In addition, the term "Micro light emitting diode (Micro-LED)" or "submillimeter light emitting diode (Mini-LED)" refers to a generic term of the entire light emitting structure formed in each step of manufacturing the light emitting element 111, including all layers or regions that have been formed.

In some embodiments, the surface of the driving substrate 10 along the light emitting direction is coated with the first reflective layer 103, and the front projection of the first reflective layer 103 on the driving substrate 10 and the front projection of the light emitting component 11 on the driving substrate 10 do not overlap.

Alternatively, the aperture of the first reflective layer 103 is larger than the outer peripheral dimension of the light emitting assembly 11. Taking the driving substrate 10 as a PCB for example, the reflectivity after the ink is sprayed is generally less than 85%. In order to increase the light utilization rate, a first reflecting layer 103 is added on the driving substrate 10, the first reflecting layer 103 is of a sheet structure or is formed by spraying a reflecting material, and the sprayed reflecting material can be, for example, but not limited to BaSO4, tiO2, organic silicon ZnS or the like, and the reflectivity can reach 99%.

Thus, when the light emitted from the light emitting element 11 reaches the first reflective layer 103 on the side of the driving substrate 10, most of the light can be reflected to the light emitting direction side, and the light utilization efficiency can be further improved.

Second embodiment

Fig. 3 shows a schematic top view of a light emitting panel according to a second embodiment of the present disclosure.

As shown in fig. 3, the light emitting panel provided in the second embodiment of the present application is similar in structure to the first embodiment, except that the surface of the surrounding wall 1123 is coated with the second reflective layer 1124. The second reflecting layer 1124 may be formed by spraying a reflecting material, for example, but not limited to BaSO4, tiO2, silicone, znS, etc., so as to further increase the reflectivity of the third light L3 after passing through the enclosing wall 1123, so that the third light L3 is more concentrated and directed directly above the light emitting element 111, and further increase the light emitting brightness.

Third embodiment

As shown in fig. 4, a third embodiment of the present application also proposes a display device including the light-emitting panel 1 as described above.

In one example, the display device is a liquid crystal display module, and includes a liquid crystal display panel 200 and a backlight module 100 disposed on a backlight side of the liquid crystal display panel 200, and since the liquid crystal display panel 200 does not emit light, the backlight module 100 needs to be configured to provide a light source with enough brightness and uniform distribution so that the liquid crystal display panel can display images normally. The backlight module 100 is used for providing a light source for the liquid crystal display panel 200. The backlight module 100 includes a back plate 110, a light-emitting panel 1 as described above, and an optical assembly 120.

The back plate 110 may be made of a metal material, such as any one of aluminum plate, aluminum alloy plate or galvanized steel, and is manufactured by stamping or the like. The metal material has better ductility, and can protect the backlight module 100 from being broken easily under the impact of external force. The back plate 110 may also be made of plastic material, such as polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene, etc., so as to reduce the weight of the backlight module 100 and the cost of the backlight module 100.

The light emitting panel 1 is located on the back plate 110, and the optical component 120 is located on a side of the light emitting panel 1 facing away from the back plate 110. The optical assembly 120 may include, for example, but not limited to, a light-homogenizing plate, a prism structure located on the light-emitting surface side of the light-homogenizing plate, etc., so as to further improve the overall display effect of the backlight module 100. Wherein, bubble or micropore structure can be provided with to the inside of even light board to incident light can have the super high reflectivity to delay the light outgoing, acquire bigger optical path, reach the effect of even light-emitting. The backlight surface of the light homogenizing plate is provided with an orange-peel-shaped fine structure for forming a diffuse reflection surface, and the light rays are disordered, so that the light rays are prevented from directly exiting from the light emitting surface, and the light ray efficiency can be improved.

The liquid crystal display panel 200 includes an array substrate and a color film substrate disposed opposite to each other, and a liquid crystal layer disposed between the array substrate and the color film substrate, wherein the liquid crystal layer includes a plurality of liquid crystal molecules, which are generally rod-shaped and can flow like a liquid and have certain crystal characteristics. When the liquid crystal molecules are in an electric field, the alignment direction thereof is changed according to the change of the electric field.

Further, the display device further includes an upper polarizer located at the light emitting side of the liquid crystal display panel 200, and a lower polarizer located at the backlight side of the liquid crystal display panel 200. The lower and upper polarizers polarize incident light of the liquid crystal display panel 200 to allow light vibrating only in one direction to be transmitted.

In another example, the display device is a direct display type LED display, including the light emitting panel 1 and the display screen body as described above.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this application should be interpreted in the broadest sense such that "on … …" means not only "directly on something" but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes the meaning of "not only" on something "or" above "but also" above "or" above "without intermediate features or layers therebetween (i.e., directly on something).

The term "layer" as used herein may refer to a portion of material that includes regions having a certain thickness. The layer may extend over the entire underlying or overlying structure, or may have a range that is less than the range of the underlying or overlying structure. Further, the layer may be a region of a continuous structure, either homogenous or non-homogenous, having a thickness less than the thickness of the continuous structure. For example, the layer may be located between the top and bottom surfaces of the continuous structure or between any pair of lateral planes at the top and bottom surfaces. The layers may extend laterally, vertically and/or along a tapered surface.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A light-emitting panel, comprising:

the driving substrate comprises a plurality of rectangular partitions which are distributed in an array and are sequentially connected, and the endpoints of the rectangular partitions form a first node and a second node which are alternately arranged along the row direction and the column direction respectively; and

the light emitting components are arranged at the first nodes in a one-to-one correspondence mode, the light emitting components comprise light emitting elements and light expanding structures arranged around the light emitting elements, and the light expanding structures are used for emitting light rays emitted by the light emitting elements along the light emitting direction and diffusing along a plurality of rectangular subareas on the periphery of the light emitting elements.

2. The light emitting panel of claim 1, wherein the light spreading structure comprises:

a wall provided on the outer peripheral side of the light emitting element;

a first transparent encapsulation adhesive covering the light emitting element; and

and the second transparent packaging glue is used for covering the first transparent packaging glue and filling the space between the enclosing wall and the first transparent packaging glue, and the refractive index of the second transparent packaging glue is higher than that of the first transparent packaging glue.

3. The light-emitting panel according to claim 2, wherein the first transparent encapsulation adhesive includes a first encapsulation portion and a second encapsulation portion which are sequentially arranged along a light-emitting direction of the light-emitting element, the first encapsulation portion being a column covering the light-emitting element, and a height of the first encapsulation portion being less than 1/2 of a height of the enclosure; the second packaging part is a cambered surface body covering the first packaging part, and the vertex of the cambered surface body is lower than the height of the enclosing wall.

4. The light emitting panel of claim 2, wherein the refractive index of the first transparent encapsulant n1<1.2 and the refractive index of the second transparent encapsulant n2>1.6.

5. The light emitting panel of claim 2, wherein the height of the second transparent encapsulant is level with the height of the perimeter wall.

6. The light-emitting panel according to claim 2, wherein the second transparent encapsulant is filled with a scattering material for scattering light.

7. The light-emitting panel according to claim 1, wherein the light-emitting element is a micro light-emitting diode or a sub-millimeter light-emitting diode.

8. The light-emitting panel according to claim 1, wherein a surface of the driving substrate in a light-emitting direction is coated with a first reflective layer, and an orthographic projection of the first reflective layer on the driving substrate and an orthographic projection of the light-emitting component on the driving substrate do not overlap each other.

9. The light-emitting panel according to claim 2, wherein a surface of the surrounding wall facing the light-emitting element is coated with a second reflective layer.

10. A display device comprising the light-emitting panel according to any one of claims 1 to 9.