A lamp panel and display panel

Abstract

The application discloses a lamp panel and a display panel, and belongs to the technical field of display. The lamp panel comprises a substrate, the substrate has a mounting surface, a plurality of light emitting units are arranged on the mounting surface and are spaced from each other, and a light guide layer comprises a light guide base layer and a light guide superposition layer, the light guide base layer is used for reflecting at least part of light emitted by the light emitting unit, each light emitting unit is provided with the light guide base layer on a side away from the substrate, at least part of the light emitting units is provided with the light guide superposition layer on the side away from the substrate, and the light guide superposition layer is arranged on a side of the light guide base layer away from the substrate. The light guide layer is used to replace a backlight light mixing film material such as a light splitting film, the lamp shadow effect is improved, the overall light efficiency and picture taste are improved, and the use of the light splitting film material is reduced or even cancelled.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a lamp panel and a display panel. BACKGROUND

[0002] At present, in a liquid crystal display panel, a lamp panel comprises a plurality of light emitting units. In order to avoid the occurrence of uneven picture display, lamp shadow and other defective products, a large number of backlight light mixing film materials need to be used to improve the overall light efficiency and picture quality, and the structure is relatively complex and the cost is relatively high. SUMMARY

[0003] The present application aims to simplify the backlight structure of the lamp panel and improve the overall light efficiency and picture quality. Another purpose of the present application is to provide a display panel using the above lamp panel.

[0004] TECHNICAL SOLUTION The lamp panel provided by the present application comprises:

[0005] a substrate, the substrate has a mounting surface;

[0006] a plurality of light emitting units, the light emitting units are arranged on the mounting surface with a spacing between each other;

[0007] a light guide layer, the light guide layer is arranged on a side of the light emitting units away from the substrate, the light guide layer comprises a light guide base layer and a light guide superposition layer, the light guide base layer is arranged on the side of each light emitting unit away from the substrate, and the light guide superposition layer is arranged on the side of at least part of the light emitting units away from the substrate, and the light guide superposition layer is arranged on a side of the light guide base layer away from the substrate.

[0008] In some embodiments, the light guide superposition layer on at least part of the light guide base layer comprises a plurality of layers, and the plurality of layers of the light guide superposition layer are arranged in a direction away from the light guide base layer.

[0009] In some embodiments, the light guide base layer has a projection area on the substrate larger than a projection area of the light guide superposition layer on the substrate.

[0010] In some embodiments, among the adjacent light guide superposition layers, the light guide superposition layer close to the light guide base layer has a projection area on the substrate larger than a projection area of the light guide superposition layer away from the light guide base layer on the substrate.

[0011] In some embodiments, the plurality of light emitting units form a first light emitting area and a second light emitting area on the mounting surface, and the first light emitting area surrounds the second light emitting area outside, and the number of the light guide layers in the first light emitting area is less than the number of the light guide layers in the second light emitting area.

[0012] In some embodiments, the plurality of light emitting units form a first light emitting area and a second light emitting area on the mounting surface, and the first light emitting area surrounds the second light emitting area outside, and the number of the light guide layers in the first light emitting area is equal to the number of the light guide layers in the second light emitting area.

[0013] The sum of the orthographic projection areas of the light guide layers in the first light emitting area on the substrate (10) is S1, and the sum of the orthographic projection areas of the light guide layers in the second light emitting area on the substrate is S2, satisfying S1 < S2.

[0014] In some embodiments, the lamp panel has a first direction and a second direction intersecting, and the plane defined by the first direction and the second direction is parallel to or coincides with the mounting surface.

[0015] The spacing between adjacent light emitting units in the first direction is D1, the spacing between adjacent light emitting units in the second direction is D2, the maximum width of the light guide layer in the first direction is D3, and the maximum width of the light guide layer in the second direction is D4, satisfying:

[0016] D1 > D2, D3 > D4;

[0017] Or, D1 = D2, D3 = D4;

[0018] Or, D1 < D2, D3 < D4.

[0019] In some embodiments, the lamp panel further comprises a light guide auxiliary layer, which is arranged on the side of the light emitting unit away from the substrate.

[0020] Wherein, the orthographic projection of the light guide auxiliary layer on the substrate is located between the orthographic projections of two adjacent light emitting units on the substrate.

[0021] In some embodiments, the light guide base layer is provided with a layer of light guide layers, and the light guide layer comprises a base and a ball head, the base is connected to the light guide base layer, and the ball head is connected to the side of the base away from the light guide base layer.

[0022] Or, the light guide base layer is provided with a plurality of light guide layers, and the light guide layer located at the outermost layer comprises a base and a ball head, the base is connected to an adjacent light guide layer, and the ball head is connected to the base and away from the side of the adjacent light guide layer.

[0023] Correspondingly, the display panel provided by the embodiment of the present application comprises the lamp panel as described above.

[0024] Beneficial effects: the lamp panel provided by the embodiment of the present application comprises a substrate, a plurality of light emitting units and a light guide layer, wherein the substrate has a mounting surface, the light emitting units are arranged on the mounting surface and spaced apart from each other, and the light guide layer is used to suppress the light emitted by the light emitting units, the light guide layer comprises a light guide base layer and a light guide layer, and the side of the light emitting unit away from the substrate is provided with the light guide layer relative to at least part of the light emitting units, and the light guide layer is arranged on the side of the light guide base layer away from the light emitting units. The light emitted by the light emitting units is suppressed by the light guide layer, and most of the light emitted by the light emitting units is emitted between adjacent light emitting units after multiple reflections, that is, the light rays are scattered at the end of the lamp panel, instead of the backlight mixing film material such as the light splitting film, thereby improving the lamp shadow effect and improving the overall light efficiency and picture taste, and the use of the light splitting film material can be reduced or even eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a structural schematic diagram of the lamp panel and the light emitting unit of the embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of the first light emitting area and the second light emitting area of the embodiment of the present application;

[0028] Figure 3 is a structural schematic diagram of the light guide layer along the third direction of the embodiment of the present application;

[0029] Figure 4 is a structural schematic diagram of the light guide layer parallel to the third direction of the embodiment of the present application;

[0030] Figure 5 is a structural schematic diagram of the light guide layer of another embodiment of the present application;

[0031] Figure 6 is a light brightness comparison schematic diagram of the distance between the light emitting units and the size of the light guide layer of different embodiments of the present application;

[0032] Figure 7This is a schematic diagram of the structure of the light guide layer of the first and second light-emitting regions according to another embodiment of this application;

[0033] Figure 8 This is a schematic diagram of the structure of the light guide layer of the first and second light-emitting regions according to another embodiment of this application;

[0034] Figure 9 This is a schematic diagram of the structure of the light guide layer of the first and second light-emitting regions according to another embodiment of this application;

[0035] Figure 10 This is a schematic diagram of the structure of the light guide layer according to another embodiment of this application;

[0036] Reference numerals: 1. Lamp board; 10. Substrate; 100. Mounting surface; 11. Light-emitting unit; 110. First light-emitting area; 111. Second light-emitting area; 112. First LED lamp; 113. Second LED lamp; 12. Sealing layer; 13. Light guide layer; 130. Light guide base layer; 131. Light guide stack; 1310. First stack; 1311. Second stack; 1312. Base; 1313. Ball head; 132. Light guide auxiliary layer; X. First direction; Y. Second direction; Z. Third direction. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified.

[0039] Applicants note that, at present, MiniLED (sub-millimeter light-emitting diode) has obvious advantages in power consumption, HDR standard, brightness, and product reliability compared to OLED (Organic Light-Emitting Diode), although it still needs to be improved in thickness and response time. However, due to the uniform distribution of LED lights between the lamp panels, the picture quality under the backlight and module state is poor, and it is more prone to display unevenness and light shadow defects, which requires the use of more backlight light mixing film materials to improve the overall light efficiency and picture quality.

[0040] Therefore, the embodiments of the present application disclose a lamp panel which can solve at least one of the above-mentioned defects.

[0041] With reference to Figure 1 and Figure 2 , the lamp panel 1 includes a substrate 10, a light-emitting unit 11, and a light guide layer 13, and the lamp panel 1 has a first direction X, a second direction Y, and a third direction Z intersecting with each other, wherein the substrate 10 and the light guide layer 13 are sequentially arranged in the third direction Z, the substrate 10 has a mounting surface 100 on the side facing the light guide layer 13, the light-emitting unit 11 is provided with a plurality of light-emitting units 11, and the plurality of light-emitting units 11 are arranged on the mounting surface 100 with a spacing between each other; the light guide layer 13 includes a light guide base layer 130 for reflecting at least part of the light emitted by the light-emitting unit 11 and a light guide superposition layer 131, the side of the light-emitting unit 11 away from the substrate 10 is provided with the light guide base layer 130 relative to each light-emitting unit 11, and the side of the light-emitting unit away from the substrate is provided with the light guide superposition layer 131 relative to at least part of the light-emitting unit 11, and the light guide superposition layer 131 is arranged on the side of the light guide base layer 130 away from the light-emitting unit 11.

[0042] It should be noted that the light guide layer 13 in the present embodiment adopts a semi-transparent and semi-reflective material, such as an opaque ink material, and is arranged on the side of the light-emitting unit 11 away from the mounting surface 100 by using processes such as coating and silk printing. In other embodiments, a small PET light guide plate can also be used and arranged by using mold pressing or point-to-point bonding. The light emitted by the light-emitting unit 11 is suppressed by the light guide layer 13, and most of the light emitted by the light-emitting unit 11 is emitted between adjacent light-emitting units 11 after multiple reflections, i.e., the light rays are scattered at the end of the lamp panel 1, instead of using a backlight light mixing film material such as a light splitting film, to improve the light shadow effect and thus improve the overall light efficiency and picture quality, which is conducive to reducing or even eliminating the use of light splitting film materials.

[0043] It should be noted that the light-emitting unit in the present embodiment can adopt an LED lamp.

[0044] Specifically, with reference to Figure 1In the embodiment, the lamp panel 1 further comprises an encapsulation layer 12 arranged on the mounting surface 100 and covering the light emitting units 11, and a light guide layer 13 arranged on the side of the encapsulation layer 12 away from the mounting surface 100. In other embodiments, the light guide layer 13 can also not be arranged on the encapsulation layer 12. It should be noted that arranging the light guide layer 13 on the encapsulation layer 12 can avoid the problems of the light guide layer 13 being too close to the light emitting units 11, such as excessive light transmission, insufficient flatness, and delamination caused by excessive temperature of the light guide layer 13.

[0045] With reference to Figure 1 When the light guide layer 130 is stacked with the light guide layer 131, the light intensity above the light emitting unit 11 decreases, and the light intensity between the adjacent light emitting units 11 increases, thereby further optimizing the brightness uniformity of the lamp panel 1.

[0046] In some embodiments, with reference to Figure 2 The light guide layer 130 is stacked with multiple layers of the light guide layer 131. In the embodiment, two layers of the light guide layer 131 are stacked above each light emitting unit 11, i.e., the light guide layer 131 comprises a first layer 1310 and a second layer 1311 in the embodiment. The first layer 1310 is connected to the side of the light guide layer 130 away from the encapsulation layer 12, and the second layer 1311 is connected to the first layer 1310. After the light guide layer 131 is adapted, the brightness uniformity of the overall lamp panel 1 can be adjusted.

[0047] In some embodiments, with reference to Figures 2 to 4 The light guide layer 130 has a larger area of the orthographic projection on the substrate 10 than the light guide layer 131. In the embodiment, the areas of the orthographic projection of the first layer 1310 and the second layer 1311 on the substrate 10 decrease, i.e., the light guide layer 130 and the first layer 1310 and the second layer 1311 gradually decrease the range of covering the light emitting units 11. This is designed to weaken the light intensity above the light emitting units 11 and increase the opening angle of the light path, which is beneficial for light mixing, so as to make the brightness of the overall lamp panel 1 uniform and optimize the overall light effect.

[0048] In other embodiments, the areas of the orthographic projection of the multiple layers of the light guide layer 131 on the substrate 10 can also be the same, i.e., the light intensity and the spacing of the different light emitting units 11 can be flexibly adjusted.

[0049] In some embodiments, with reference to Figure 2 and Figure 3The lamp panel 1 also includes a light-guiding auxiliary layer 132, which is disposed on the side of the sealant layer 12 facing away from the mounting surface 100, and is located between adjacent light-emitting units 11. In this embodiment, multiple light-guiding auxiliary layers 132 are evenly arranged in the blank area between adjacent light-emitting units 11, thereby further adjusting the light path and improving the overall brightness uniformity of the lamp panel 1. In some embodiments, refer to Figure 5 The second stack 1311 includes a base 1312 connecting the first stack 1310 and a spherical head 1313 connecting the base 1312 to the side away from the first stack 1310. That is, the second stack 1311 can be configured as a hemispherical structure. As a light-scattering unit, the hemispherical structure of the second stack 1311 is advantageous for providing a larger light emission angle and improving the overall light mixing effect compared with the planar structure. At the same time, it is advantageous for replacing the beam-splitting film material, reducing the assembly process difficulty and material cost.

[0050] It is understood that in other embodiments, when a light guide layer 131 is provided on the light guide base layer 130, the light guide layer 131 can be configured as a hemispherical structure composed of a base 1312 and a ball head 1313. Similarly, when more than two light guide layers 131 are provided on the light guide base layer 130, the outermost light guide layer 131 can be configured as a hemispherical structure composed of a base 1312 and a ball head 1313.

[0051] In some embodiments, refer to Figure 3 and Figure 6 The plane defined by the first direction X and the second direction Y is parallel to or coincides with the mounting surface 100; the spacing between adjacent light-emitting units 11 in the first direction X is D1, the spacing between adjacent light-emitting units 11 in the second direction Y is D2, the maximum width of the light guide layer 13 in the first direction X is D3, and the maximum width of the light guide layer 13 in the second direction Y is D4, satisfying D1 > D2, D3 > D4; or, D1 = D2, D3 = D4; or, D1 < D2, D3 < D4.

[0052] It is understandable that when D1 = D2, the substrate 10 has the same dimensions in the first direction X and the second direction Y. The orthographic projection shape of the light guide layer 13 onto the substrate 10 can be a circle satisfying D3 = D4, meaning the coverage area of ​​the light guide layer 13 makes the brightness between adjacent light-emitting units 11 in the first direction X the same as the brightness between adjacent light-emitting units 11 in the second direction Y. (Refer to...) Figure 6 In the process, as the spacing D1 between adjacent light-emitting units 11 increases, such as D 1’ >D1, the amount of light in the middle between adjacent light-emitting units 11 is significantly reduced, that is, the brightness tends to be uneven.

[0053] When D1>D2, the adaptive adjustment makes D3>D4, i.e. the orthographic projection of the light guide layer 13 on the substrate 10 can adopt an ellipse shape satisfying D3>D4, i.e. the adjacent light guide layer 13 extends to the side farther from the adjacent light emitting unit 11, thereby adjusting the light path angle between the adjacent light emitting units 11, and compared with the size D3 of the light guide layer 13 with a circular orthographic projection, D 3’ >D3, the reference Figure 6 , the amount of light between the adjacent light emitting units 11 is increased, thereby adjusting the brightness to be uniform.

[0054] It can be understood that in other embodiments, when D1<D2, the size of the light guide layer 13 can also be adaptively adjusted as D3<D4.

[0055] In addition, it can be understood that in some embodiments, when D1>D2, D3=D4 can also be taken, and when the sizes of D3 and D4 are large enough, the influence of the numerical value change of D1 and D2 on the reflection range of the light guide layer 13 can be ignored, and no excessive limitation is made here.

[0056] In some embodiments, it can be understood that the energy density near the edge position of the substrate 10 is less than the energy density of the middle part of the substrate 10, and for this purpose, with reference to Figure 7 , the plurality of light emitting units 11 form a first light emitting area 110 and a second light emitting area 111 on the mounting surface 100, and the first light emitting area 110 surrounds the outside of the second light emitting area 111, and the plurality of light emitting units 11 include a first light emitting unit 112 located in the first light emitting area 110 and a second light emitting unit 113 located in the second light emitting area 111;

[0057] Among them, the number of light guide layers 131 on the encapsulation layer 12 relative to the first light emitting unit 112 is less than the number of light guide layers 131 relative to the second light emitting unit 113, i.e. as shown in Figure 7 , only one layer of light guide layer 131 is provided relative to the first light emitting unit 112 in the first light emitting area 110, and two layers of light guide layer 131 are provided relative to the second light emitting unit 113 in the second light emitting area 111. By thinning the light guide layer 13 above the light emitting unit 11 at the edge of the substrate 10, the overall brightness of the first light emitting area 110 is improved, which is beneficial to improve the brightness consistency of the overall lamp panel 1.

[0058] In addition, in some embodiments, with reference to Figure 8, the number of the light guide layers 131 on the encapsulation layer 12 relative to the first light emitting units 112 is equal to the number of the light guide layers 131 relative to the second light emitting units 113; on this basis, the sum of the orthographic projection areas of the light guide layers 131 relative to a single first light emitting unit 112 on the substrate 10 is S1, and the sum of the orthographic projection areas of the light guide layers 131 relative to a single second light emitting unit 113 on the substrate 10 is S2, satisfying S1 < S2. That is, as shown in Figure 8 , when the light guide layers 131 include the first layers 1310 and the second layers 1311, the orthographic projection area of the second layers 1311 located in the first light emitting region 110 on the substrate 10 is smaller than the orthographic projection area of the second layers 1311 located in the second light emitting region 111 on the substrate 10, so that more light of the first light emitting units 112 in the first light emitting region 110 transmits through the first layers 1310, improving the overall brightness of the first light emitting region 110 and being conducive to improving the brightness consistency of the overall lamp panel 1.

[0059] In other embodiments, the orthographic projection areas of the first layers 1310 and the second layers 1311 located in the first light emitting region 110 on the substrate 10 are both smaller than the orthographic projection areas of the first layers 1310 and the second layers 1311 located in the second light emitting region 111 on the substrate 10, which can also improve the overall brightness of the first light emitting region 110 and improve the brightness consistency of the overall lamp panel 1.

[0060] Similarly, in some embodiments, referring to Figure 9 , the number of the light guide layers 131 on the encapsulation layer 12 relative to the first light emitting units 112 is equal to the number of the light guide layers 131 relative to the second light emitting units 113; on this basis, the second layers 1311 located in the first light emitting region 110 retain a portion close to the second light emitting region 111, so as to improve the brightness close to the edge of the substrate 10 and be conducive to improving the brightness consistency of the overall lamp panel 1.

[0061] In some embodiments, referring to Figure 4 , the thickness of the light guide base layer 130 in the third direction Z is T1, satisfying 3 μm ≤ T1 ≤ 5 μm; the thickness of the light guide layer 131 in the third direction Z is T2, satisfying 3 μm ≤ T2 ≤ 8 μm, and in the present embodiment, the first layers 1310 take T 2’ , satisfying 3 μm ≤ T 2’ ≤ 5 μm, and the second layers 1311 take T 2” , satisfying 6 μm ≤ T 2” ≤ 8 μm.

[0062] In some embodiments, T1may be any one or a range value consisting of any two of 3 pm, 3.1 pm, 3.2 pm, 3.3 pm, 3.4 pm, 3.5 pm, 3.6 pm, 3.7 pm, 3.8 pm, 3.9 pm, 4 pm, 4.1 pm, 4.2 pm, 4.3 pm, 4.4 pm, 4.5 pm, 4.6 pm, 4.7 pm, 4.8 pm, 4.9 pm, 5 pm.

[0063] In some embodiments, T 2’ may be any one or a range value consisting of any two of 3 pm, 3.1 pm, 3.2 pm, 3.3 pm, 3.4 pm, 3.5 pm, 3.6 pm, 3.7 pm, 3.8 pm, 3.9 pm, 4 pm, 4.1 pm, 4.2 pm, 4.3 pm, 4.4 pm, 4.5 pm, 4.6 pm, 4.7 pm, 4.8 pm, 4.9 pm, 5 pm.

[0064] In some embodiments, T 2” may be any one or a range value consisting of any two of 6 pm, 6.1 pm, 6.2 pm, 6.6 pm, 6.7 pm, 6.5 pm, 6.6 pm, 6.7 pm, 6.8 pm, 6.9 pm, 7 pm, 7.1 pm, 7.2 pm, 7.6 pm, 7.7 pm, 7.5 pm, 7.6 pm, 7.7 pm, 7.8 pm, 7.9 pm, 8 pm.

[0065] It should be noted that in addition thereto, in some embodiments, the arrangement density of the light guide auxiliary layer 132 located at the first light emitting area 110 can be less than the arrangement density of the light guide auxiliary layer 132 located at the second light emitting area 111, and it can be understood that on this basis, it is beneficial to improve the light intensity of the first light emitting area 110 and relatively reduce the second light emitting area 111, so as to achieve the effect of uniform consistency of the lamp panel brightness.

[0066] It should be noted that the spacing between adjacent light emitting units 11 in the current conventional consumer-grade small and medium-sized MiniLED products is 1mm-4mm. The larger the spacing between adjacent light emitting units 11, the higher the requirement for light mixing, the larger the number of light guide layers 13 and the area of the orthographic projection on the substrate 10, and the greater the benefit (reduction / saving of backlight light splitting film material), but there is also inevitable attenuation of brightness. The number of layers, area, and brightness of the light guide layer 13 need to be considered comprehensively in the design stage, and a trade-off needs to be made. When the spacing between adjacent light emitting units 11 is less than 2mm, the number of layers of the light guide layer 13 is maximally set to 2 layers. When the spacing between adjacent light emitting units 11 is about 2mm-4mm, the number of layers of the light guide layer 13 is preferably 3-4 layers. When the spacing between adjacent light emitting units 11 continues to increase, the number of layers of the light guide layer 13 also needs to increase in order to maintain the same light mixing effect. In the embodiments of the present application, the spacing between adjacent light emitting units 11 is 3.8mm, and the number of layers of the light guide layer 13 is 3, wherein the light guide base layer 130 and the first stack 1310 are mainly used for bottoming, i.e. the thickness is between 3um and 5um, and the second stack 1311 needs to press the light directly emitted from the top of the light emitting unit 11, so the thickness needs to be greater than the previous two layers, i.e. about 6um-8um.

[0067] It can be understood that, with reference to Figure 10 In some embodiments, in addition to circular and elliptical structures, the light guide layer 13 can also adopt a rhombus structure, and in addition, other polygonal structures such as equilateral triangle, square, regular hexagon, etc. can also be adopted, and details are not described herein. The structure of the light guide layer 13 is flexibly adjusted according to the arrangement mode of the light emitting unit 11 to achieve the effect of uniform brightness of the overall lamp panel 1.

[0068] Correspondingly, the present application provides a display panel, which comprises the above lamp panel 1. It can be understood that the display panel can have all the technical features and corresponding beneficial effects of the above lamp panel 1, and details are not described herein.

[0069] The above describes in detail a lamp panel and a display panel provided by the embodiments of the present application, and the principles and implementation modes of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the technical solutions and core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A light panel, characterized in that The lamp panel comprises: a substrate having a mounting surface; a plurality of light emitting units arranged on the mounting surface with a spacing between each other; a light guide layer arranged on a side of the light emitting units away from the substrate, the light guide layer comprising a light guide base layer for reflecting at least part of light emitted by the light emitting units and a light guide super layer, the side of the light emitting units away from the substrate being provided with the light guide base layer relative to each of the light emitting units, the side of the light emitting units away from the substrate being provided with the light guide super layer relative to at least part of the light emitting units, and the light guide super layer being arranged on a side of the light guide base layer away from the substrate.

2. The lamp panel according to claim 1, wherein the light guide super layer on at least part of the light guide base layer is provided with a plurality of layers, and the plurality of layers of the light guide super layer are arranged in a direction away from the light guide base layer.

3. The lamp panel according to claim 2, wherein a projection area of the light guide base layer on the substrate is greater than a projection area of the light guide super layer on the substrate.

4. The lamp panel according to claim 2 or 3, wherein in adjacent light guide super layers, a projection area of the light guide super layer close to the light guide base layer on the substrate is greater than a projection area of the light guide super layer away from the light guide base layer on the substrate.

5. The lamp panel according to claim 2, wherein a plurality of the light emitting units form a first light emitting area and a second light emitting area on the mounting surface, and the first light emitting area is arranged outside the second light emitting area, and a number of the light guide super layers in the first light emitting area is less than a number of the light guide super layers in the second light emitting area.

6. The lamp panel according to claim 2, wherein a plurality of the light emitting units form a first light emitting area and a second light emitting area on the mounting surface, and the first light emitting area is arranged outside the second light emitting area, and a number of the light guide super layers in the first light emitting area is equal to a number of the light guide super layers in the second light emitting area; a sum of projection areas of the light guide super layers in the first light emitting area on the substrate is S1, and a sum of projection areas of the light guide super layers in the second light emitting area on the substrate is S2, and S1 < S2 is satisfied.

7. The lamp panel according to claim 1, wherein the lamp panel has a first direction and a second direction intersecting each other, and a plane defined by the first direction and the second direction is parallel to or coincides with the mounting surface; a spacing between adjacent light emitting units in the first direction is D1, a spacing between adjacent light emitting units in the second direction is D2, a maximum width of the light guide layer in the first direction is D3, and a maximum width of the light guide layer in the second direction is D4, and D1 > D2 and D3 > D4 are satisfied; or, D1 = D2 and D3 = D4 are satisfied; or, D1 < D2 and D3 < D4 are satisfied.

8. The lamp panel according to claim 1, wherein the lamp panel further comprises a light guide auxiliary layer arranged on a side of the light emitting units away from the substrate. ​ The orthographic projection of the light guide auxiliary layer on the substrate is located between the orthographic projections of two adjacent light emitting units on the substrate.

9. The lamp panel of claim 1, wherein, The light guide base layer is provided with a layer of the light guide stack, the light guide stack includes a base and a ball head, the base is connected to the light guide base layer, and the ball head is connected to the base on the side away from the light guide base layer. Or, the light guide base layer is provided with multiple layers of the light guide stack, the light guide stack located on the outermost layer includes a base and a ball head, the base is connected to adjacent light guide stacks, and the ball head is connected to the base on the side away from adjacent light guide stacks.

10. A display panel, characterized by, The lamp panel as claimed in any one of claims 1 to 9.

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