Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, the display device comprising the display panel. The display panel comprises a driving substrate, light emitting elements on the driving substrate, quantum dot color conversion units corresponding to the light emitting elements respectively, a barrier wall structure between the quantum dot color conversion units and on the driving substrate, and light converging elements corresponding to the quantum dot color conversion units. The barrier wall structure comprises a reflective layer and a light absorbing layer. In this way, the barrier wall structure is formed by stacking the reflective layer and the light absorbing layer, and the thickness of the barrier wall structure is greater. Accordingly, the quantum dot color conversion units between the barrier wall structures can also have a greater thickness, thereby improving the light conversion efficiency of the quantum dot color conversion units. In addition, the light converging elements are arranged above the quantum dot color conversion units, so that the light efficiency of the display panel is improved, thereby improving the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] Quantum Dot Color Conversion (QDCC) technology places red and green quantum dot color conversion films on blue light-emitting diodes (blue LEDs) or ultraviolet light-emitting diodes (UV LEDs) to replace red light-emitting diodes (red LEDs) and green light-emitting diodes (green LEDs) to achieve full-color display. It is considered one of the important technical routes to solve the problems of red LED deficiency and mass transfer faced by Micro-LED displays.

[0003] The implementation of display panels based on quantum dot color conversion technology typically requires first creating a black bank structure around the quantum dots to define their position and reduce crosstalk between adjacent pixels. However, due to limitations in materials and manufacturing processes, both the bank structure and the quantum dot color conversion film are relatively thin. On the one hand, this results in lower light conversion efficiency for the thinner quantum dot color conversion film, affecting the display effect. On the other hand, the thin bank structure cannot completely absorb blue or ultraviolet light, leading to a reduction in the color gamut of the device. Summary of the Invention

[0004] In order to overcome at least some of the technical problems mentioned in the background art, in a first aspect, embodiments of this application provide a display panel, including:

[0005] Drive substrate;

[0006] A light-emitting element, wherein the light-emitting element is located on the driving substrate;

[0007] A quantum dot layer, the quantum dot layer comprising quantum dot color conversion units corresponding to each of the light-emitting elements;

[0008] A barrier structure is provided, located on the driving substrate and between adjacent quantum dot color conversion units; wherein the barrier structure includes a reflective layer and a light-absorbing layer, the reflective layer being located on the driving substrate and the light-absorbing layer being located on the side of the reflective layer away from the driving substrate; and

[0009] A light converging element is located on the side of the quantum dot layer away from the driving substrate and is disposed corresponding to the quantum dot color conversion unit. The light converging element is configured to converge the light emitted from the quantum dot color conversion unit and emit the converged light from the side away from the driving substrate.

[0010] Based on one possible implementation of the first aspect, the quantum dot color conversion unit is located on the driving substrate and covers a corresponding light-emitting element.

[0011] In one possible implementation of the first aspect, the light-absorbing layer has a groove at the position corresponding to the quantum dot color conversion unit, and the light-converging element is at least partially embedded in the groove.

[0012] Preferably, the orthographic projection of the quantum dot color conversion unit on the driving substrate is located within the orthographic projection of the opening of a corresponding groove on the driving substrate;

[0013] Preferably, the depth of the groove is greater than or equal to half the thickness of the light-absorbing layer and less than the thickness of the light-absorbing layer.

[0014] In one possible implementation of the first aspect, the light-absorbing layer includes a black matrix layer located on the reflective layer;

[0015] Preferably, the thickness of the reflective layer is greater than or equal to 10 μm, and the thickness of the black matrix layer is greater than or equal to 10 μm.

[0016] Based on one possible implementation of the first aspect, the light-absorbing layer includes at least two color resist layers sequentially stacked on the reflective layer;

[0017] Preferably, the sum of the thicknesses of the at least two color resist layers is greater than or equal to 10 μm.

[0018] Based on one possible implementation of the first aspect, the at least two color resist layers include a first color resist layer, a second color resist layer, and a third color resist layer, wherein the first color resist layer, the second color resist layer, and the third color resist layer are each one of a red color resist layer, a green color resist layer, and a blue color resist layer;

[0019] Preferably, the groove extends from the side of the third color resist layer away from the reflective layer through the third color resist layer and extends to the second color resist layer. The depth of the groove is greater than the thickness of the third color resist layer and less than the sum of the thicknesses of the second color resist layer and the third color resist layer.

[0020] Based on one possible implementation of the first aspect, the light-absorbing layer includes at least one color resist layer stacked sequentially on the reflective layer and a black matrix layer located on the side of the at least one color resist layer away from the reflective layer;

[0021] Preferably, the sum of the thicknesses of the at least one color resist layer and the black matrix layer is greater than or equal to 10 μm.

[0022] Based on one possible implementation of the first aspect, the at least one color resist layer includes a first color resist layer and a second color resist layer, wherein the first color resist layer and the second color resist layer are one of a red color resist layer, a green color resist layer, and a blue color resist layer, respectively.

[0023] Preferably, the groove extends from the side of the black matrix layer away from the reflective layer through the black matrix layer and extends to the second color resist layer. The depth of the groove is greater than the thickness of the black matrix layer and less than the sum of the thicknesses of the second color resist layer and the black matrix layer.

[0024] In one possible implementation of the first aspect, the reflective layer has a through hole at a position corresponding to the light-emitting element, and each light-emitting element is located in one of the through holes;

[0025] Preferably, the surface of the reflective layer away from the driving substrate has a first distance to the driving substrate, and the surface of the light-emitting element away from the driving substrate has a second distance to the driving substrate, wherein the first distance is greater than the second distance.

[0026] Secondly, embodiments of this application also provide a display device including the above-described display panel.

[0027] In summary, compared to existing technologies, the display panel and display device provided in this application, by employing a two-layer structure of reflective and light-absorbing layers as a barrier structure, achieve a greater thickness than the traditional single-layer barrier structure. Correspondingly, the quantum dot color conversion units located between the barrier structures can also have a greater thickness (e.g., 20µm or more), allowing the display panel to solve the problem of light crosstalk between adjacent pixels through the light-absorbing layer while effectively improving the light conversion efficiency of the quantum dot color conversion units. Furthermore, placing a light-converging element above the quantum dot color conversion units can enhance the luminous efficiency of the display panel, thereby improving its display effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an existing display panel;

[0030] Figure 2This is one of the schematic diagrams of the display panel provided in the embodiments of this application;

[0031] Figure 3 This is a second schematic diagram of the display panel provided in the embodiments of this application;

[0032] Figure 4 This is the third schematic diagram of the display panel provided in the embodiments of this application;

[0033] Figure 5 This is the fourth schematic diagram of the display panel provided in the embodiments of this application;

[0034] Figure 6 This is the fifth schematic diagram of the display panel provided in the embodiments of this application;

[0035] Figure 7 This is the sixth schematic diagram of the display panel provided in the embodiments of this application;

[0036] Figure 8 This is the seventh schematic diagram of the display panel provided in the embodiments of this application;

[0037] Figure 9 This is a partially enlarged schematic diagram of the display panel provided in an embodiment of this application. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used 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. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0043] As mentioned in the background section, such as Figure 1 The diagram shows a partial structural schematic of a display panel employing Quantum Dot Color Conversion (QDCC) technology. This display panel may include a driving backplane 900 and a quantum dot color conversion layer 920 located on the driving backplane 900. The quantum dot color conversion layer 920 converts the light emitted by the light-emitting units 930 on the driving backplane 900 (such as blue light or ultraviolet light), for example, converting blue light into red and green light to achieve full-color display. Generally, this approach requires first creating a black barrier structure 910 around the quantum dot color conversion layer 920 to define the position of the quantum dot color conversion layer 920 and reduce crosstalk between adjacent pixels. For example, the black barrier structure 910 can be a black matrix formed by black ink.

[0044] However, due to limitations in materials and manufacturing processes, the thickness of the black barrier structure 910 is generally set within 10μm, and correspondingly, the thickness of the quantum dot color conversion layer 920 can also only be set within 10μm. Based on this thickness design, on the one hand, the light conversion efficiency of the thin quantum dot color conversion layer 920 is low, affecting the display effect of the display panel; on the other hand, the thin black barrier structure 910 cannot completely absorb blue light or ultraviolet light, resulting in a reduction in the color gamut of the display panel.

[0045] To address the aforementioned problems, this application provides a display panel and a display device using the same panel, which can improve the light conversion efficiency and display effect of the display panel. Embodiments of this application will be described below with reference to the accompanying drawings.

[0046] like Figure 2 The diagram shown is one of the structural schematic diagrams of a display panel provided in an embodiment of this application.

[0047] In this embodiment, the display panel includes a driving substrate 100, a light-emitting element 200, a quantum dot layer 300, a barrier structure 400, and a light-converging element 500.

[0048] The light-emitting element 200 is located on the driving substrate 100. The light-emitting element 200 can be a micro-LED that emits blue light or a micro-LED that emits ultraviolet light. For example, in this embodiment, a micro-LED that emits blue light can be used as the light-emitting element 200.

[0049] The quantum dot layer 300 includes quantum dot color conversion units corresponding to each of the light-emitting elements 200. Each quantum dot color conversion unit is located on the driving substrate 100 and covers a corresponding light-emitting element 200. For example, in an optional embodiment, the quantum dot layer 300 may include a first quantum dot color conversion unit 301, a second quantum dot color conversion unit 302, and a third quantum dot color conversion unit 303. The first quantum dot color conversion unit 301, the second quantum dot color conversion unit 302, and the third quantum dot color conversion unit 303 may be one of a red quantum dot color conversion unit, a green quantum dot color conversion unit, and a blue quantum dot color conversion unit, respectively, used to convert the light emitted by the light-emitting element 200 into red light (R), green light (G), and blue light (B). For example, the first quantum dot color conversion unit 301 may be a red quantum dot color conversion unit, the second quantum dot color conversion unit 302 may be a green quantum dot color conversion unit, and the third quantum dot color conversion unit 303 may be a blue quantum dot color conversion unit. For example, the first quantum dot color conversion unit 301 can be a green quantum dot color conversion unit, the second quantum dot color conversion unit 302 can be a red quantum dot color conversion unit, and the third quantum dot color conversion unit 303 can be a blue quantum dot color conversion unit. For example, the first quantum dot color conversion unit 301 can be a blue quantum dot color conversion unit, the second quantum dot color conversion unit 302 can be a green quantum dot color conversion unit, and the third quantum dot color conversion unit 303 can be a red quantum dot color conversion unit; these are not all listed here.

[0050] The barrier structure 400 is located on the driving substrate 100 and between adjacent quantum dot color conversion units. The barrier structure 400 includes a reflective layer 410 and a light-absorbing layer 420. The reflective layer 410 is located on the driving substrate 100, and the light-absorbing layer 420 is located on the side of the reflective layer 410 away from the driving substrate 100. Thus, the barrier structure 400 can perform both light reflection and light absorption functions; specifically, the reflective layer 410 performs light reflection, and the light-absorbing layer 420 performs light absorption.

[0051] In one possible implementation of this embodiment, the reflective layer 410 can be a metal reflective film formed from a white metal with reflective properties. For example, as an example, the reflective layer 410 can be, but is not limited to, a metal reflective film layer formed from at least one of the following metal materials: silver, aluminum, copper, gold, chromium, iron, and nickel. The reflective layer 410 is used to reflect and reuse the light emitted by the light-emitting element 200. For example, it can reflect and reuse light with a wide viewing angle, thereby reducing crosstalk and improving the light utilization rate of the light-emitting element 200, improving light efficiency, and thus improving the overall display effect of the display panel.

[0052] Furthermore, the light-absorbing layer 420 can be a light-absorbing film layer formed of a material with light-absorbing properties. The light-absorbing layer is used to absorb light emitted from the side of the quantum dot color conversion unit, avoiding color mixing of different colors emitted by adjacent quantum dot color conversion units and avoiding crosstalk between neighboring pixels.

[0053] For example, in one possible example, such as Figure 2 As shown, the light-absorbing layer 420 can be a black matrix layer located on the reflective layer 410. For example, the black matrix layer can be formed on the reflective layer 410 using materials such as black ink or black light-blocking resin through processes such as inkjet printing (IJP) or slit coating. The thickness of the reflective layer 410 is greater than or equal to 10 μm, and the thickness of the black matrix layer is greater than or equal to 10 μm. Thus, the barrier structure 400 is configured as a two-layer structure consisting of the reflective layer 410 and the light-absorbing layer 420. Utilizing this two-layer stacked structure of the reflective layer 410 and the light-absorbing layer 420, the thickness of the barrier structure 400 is greater than 20 μm. Furthermore, the thickness of the quantum dot layer 300 located between the barrier structures 400 can also be greater than 20 μm, effectively improving the light conversion efficiency of each quantum dot color conversion unit in the quantum dot layer 300. Meanwhile, due to the increased thickness of the barrier structure 400, the thicker light-absorbing layer 410 can simultaneously increase the absorption of excitation light (such as blue light or ultraviolet light), eliminating the need for an additional filter layer.

[0054] For example, in another possible example, the light-absorbing layer 420 may include at least two color resist layers sequentially stacked on the reflective layer 410.

[0055] As an example, such as Figure 3 The diagram shown is a second structural schematic of a display panel provided in an embodiment of this application. The at least two color resist layers may include a first color resist layer 421, a second color resist layer 422, and a third color resist layer 423, which are sequentially stacked on the driving substrate 100. The first color resist layer 421, the second color resist layer 422, and the third color resist layer 423 may be one of a red color resist layer, a green color resist layer, and a blue color resist layer, respectively. For example, the first color resist layer 421 may be a red color resist layer, the second color resist layer 422 may be a green color resist layer, and the third color resist layer may be a blue color resist layer. Another example is that the first color resist layer 421 may be a blue color resist layer, the second color resist layer 422 may be a red color resist layer, and the third color resist layer 423 may be a green color resist layer; these are not all listed here. Figure 3 An example of at least two color resist layers including three color resist layers is shown. It should be understood that in other possible examples, the at least two color resist layers may also include two, four, or five color resist layers, etc., which will not be elaborated here. In this embodiment, the sum of the thicknesses of the at least two color resist layers is greater than or equal to 10 μm. For example, the sum of the thicknesses of the at least two color resist layers may be between 10 μm and 20 μm.

[0056] Therefore, considering that it is difficult to manufacture a large-thickness light-absorbing layer for black light-absorbing materials due to the manufacturing process, another alternative embodiment of this example uses at least two color resist layers instead of a single black matrix layer. Compared with using a single black matrix layer, it is easier to manufacture the required thick barrier structure 400.

[0057] Alternatively, in yet another possible embodiment, such as Figure 4 The diagram shown is a third schematic representation of a display panel according to an embodiment of this application. The light-absorbing layer 420 may further include at least one color resist layer sequentially stacked on the reflective layer 410, and a black matrix layer 424 located on the side of the at least one color resist layer away from the reflective layer 410.

[0058] As an example, the at least one color resist layer may include a first color resist layer 421 and a second color resist layer 422, wherein the first color resist layer 421 and the second color resist layer 422 may be one of a red color resist layer, a green color resist layer, and a blue color resist layer, respectively. For example, the first color resist layer 421 may be a red color resist layer and the second color resist layer 422 may be a green color resist layer. Another example is that the first color resist layer 421 may be a blue color resist layer and the second color resist layer 422 may be a red color resist layer. Yet another example is that the first color resist layer 421 may be a green color resist layer and the second color resist layer 422 may be a red color resist layer; these are not all examples listed here. Figure 4 An example is shown where the at least one color resist layer includes two color resist layers. It should be understood that in other possible examples, the at least one color resist layer may also include one, three, or four color resist layers, etc., which will not be elaborated here. In this embodiment, the sum of the thicknesses of the at least one color resist layer and the black matrix layer 424 is greater than or equal to 10 μm. For example, the sum of the thicknesses of the at least one color resist layer and the black matrix layer 424 can be between 10 μm and 20 μm. Exemplarily, the thickness of the at least one color resist layer can be set between 10 μm and 15 μm, and the thickness of the black matrix layer 424 can be set between 7 μm and 10 μm, but this is not a limitation.

[0059] Thus, considering that black light-absorbing materials are difficult to manufacture with a large thickness of light-absorbing layer due to the manufacturing process, another alternative embodiment of this example uses at least one color resist layer plus one black matrix layer instead of a single black matrix layer, which makes it easier to manufacture the required thick barrier structure 400.

[0060] The light converging element 500 is located on the side of the quantum dot layer 300 away from the driving substrate 100 and is correspondingly disposed with respect to the quantum dot color conversion unit. The light converging element 500 is used to converge the light emitted from the quantum dot color conversion unit and emit the converged light from the side away from the driving substrate 100. In this embodiment, the light converging element 500 can be a lens with a light-concentrating function, such as a micro convex lens. Each quantum dot color conversion unit can be correspondingly provided with one light converging element 500; for example, a micro convex lens can be disposed above each quantum dot color conversion unit to form a lens array. Thus, by setting the light converging element 500, the light efficiency of the entire display panel can be improved, further enhancing the display effect of the display panel 100.

[0061] Furthermore, in order to improve the light converging effect of the light converging element 500 and enhance the integration of the entire display panel, and at least partially offset the adverse effects on the thinner design of the display panel caused by the increased overall thickness of the display panel due to the high film thickness design of the barrier structure 400, in one possible implementation of this application embodiment, the light absorbing layer 420 has a groove at the position corresponding to the quantum dot color conversion unit, and the light converging element 500 is at least partially embedded in the groove.

[0062] For example, in one possible example, such as Figure 5 The diagram shown is a fourth schematic representation of a display panel according to an embodiment of this application. The orthographic projection of the quantum dot color conversion unit onto the driving substrate 100 is located within the orthographic projection of the opening of a corresponding groove onto the driving substrate 100. This allows light emitted from the quantum dot color conversion unit to converge into the light converging element 500 through the opening of the groove, thereby maximizing the light efficiency of the display panel. Furthermore, to ensure the light conversion efficiency by maintaining the thickness of the quantum dot color conversion unit within a certain range (e.g., between 12µm and 18µm), in this embodiment, the depth of the groove is preferably greater than or equal to half the thickness of the light-absorbing layer 420 and less than the thickness of the light-absorbing layer 420, so that the groove does not penetrate the light-absorbing layer 420.

[0063] For example, in another possible instance, such as Figure 6 The diagram shown is a fifth schematic representation of a display panel according to an embodiment of this application. Based on the implementation of the light-absorbing layer 420 including a first color resist layer 421, a second color resist layer 422, and a third color resist layer 423, the groove can penetrate the third color resist layer 423 from the side of the third color resist layer 423 away from the reflective layer 410 and extend to the second color resist layer 422. Simultaneously, to ensure the thickness of the quantum dot color conversion unit remains within a certain range to guarantee light conversion efficiency, the depth of the groove is greater than the thickness of the third color resist layer 423 and less than the sum of the thicknesses of the second color resist layer 422 and the third color resist layer 423.

[0064] For example, such as Figure 7The diagram shown is a sixth schematic representation of a display panel according to an embodiment of this application. Based on the implementation of the light-absorbing layer 420 including a first color resist layer 421, a second color resist layer 422, and a black matrix layer 424, the groove can penetrate the black matrix layer 424 from the side away from the reflective layer 410 and extend to the second color resist layer 422. Simultaneously, to ensure the thickness of the quantum dot color conversion unit remains within a certain range to guarantee light conversion efficiency, the depth of the groove is greater than the thickness of the black matrix layer 424 and less than the sum of the thicknesses of the second color resist layer 422 and the black matrix layer 424.

[0065] Furthermore, such as Figure 8 The diagram shown is a seventh schematic representation of a display panel according to an embodiment of this application. To enhance the reflection effect of the reflective layer 410 on the light emitted by the light-emitting element 200, through-holes 411 can be formed at positions corresponding to the light-emitting elements 200 in the reflective layer 410, with each light-emitting element 200 located within one through-hole 411. Thus, the reflective layer 410 is present around each light-emitting element 200, allowing for light reflection and utilization. Furthermore, the quantum dot color conversion unit at least partially fills the through-holes 411 and covers the light-emitting elements 200.

[0066] Furthermore, to further improve the reflectivity of the reflective layer 410 for wide-viewing-angle light, the height of the reflective layer 410 can be designed to be greater than the height of the light-emitting element 200. For example... Figure 9 The diagram shown is a partially enlarged schematic of the display panel. The surface of the reflective layer 410 away from the driving substrate 100 has a first distance h1 to the driving substrate 100, and the surface of the light-emitting element 200 away from the driving substrate 100 has a second distance h2 to the driving substrate 100. The first distance h1 is greater than the second distance h2. By designing the thickness of the reflective layer 410 to be greater than the thickness of the light-emitting element 200, more light from a wider viewing angle can be reflected and reused through the reflective layer 410, further improving the overall light efficiency of the display panel and enhancing the display effect.

[0067] In one possible implementation of this application, the top surface of the quantum dot color conversion unit away from the driving substrate 100 is flush with the top surface of the light-absorbing layer 420 away from the driving substrate 100 in the horizontal direction. In another possible implementation, the top surface of the quantum dot color conversion unit away from the driving substrate 100 is lower than the top surface of the light-absorbing layer 420 away from the driving substrate 100, and the top surface of the quantum dot color conversion unit away from the driving substrate 100 is higher than the top surface of the reflective layer 410 away from the driving substrate 100.

[0068] Furthermore, based on the above, this application embodiment also provides a display device having the aforementioned display panel. The display panel may be a Micro-LED display panel, and the display device may be a product having the display panel, such as a Micro-LED display screen or an electronic device having a Micro-LED display screen. Its presentation form may include, for example, a commercial display, a television (TV), a mobile phone, a smartwatch, or an in-vehicle screen.

[0069] In summary, the display panel and display device provided in this application, by employing a two-layer structure of reflective and light-absorbing layers as a barrier structure, have a greater thickness than the traditional single-layer barrier structure. Correspondingly, the quantum dot color conversion units located between the barrier structures can also have a greater thickness (e.g., 20µm or more), allowing the display panel to solve the problem of light crosstalk between adjacent pixels through the light-absorbing layer while effectively improving the light conversion efficiency of the quantum dot color conversion units. Furthermore, placing a light-converging element above the quantum dot color conversion units can improve the light efficiency of the display panel, thereby enhancing its display effect.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: Drive substrate; A light-emitting element, wherein the light-emitting element is located on the driving substrate; A quantum dot layer, the quantum dot layer comprising quantum dot color conversion units corresponding to each of the light-emitting elements; A barrier structure is provided, located on the driving substrate and between adjacent quantum dot color conversion units; wherein the barrier structure includes a reflective layer and a light-absorbing layer, the reflective layer being located on the driving substrate and the light-absorbing layer being located on the side of the reflective layer away from the driving substrate; and A light converging element is located on the side of the quantum dot layer away from the driving substrate and is disposed corresponding to the quantum dot color conversion unit. The light converging element is configured to converge the light emitted from the quantum dot color conversion unit and emit the converged light from the side away from the driving substrate. The surface of the reflective layer away from the driving substrate has a first distance from the driving substrate, and the surface of the light-emitting element away from the driving substrate has a second distance from the driving substrate, wherein the first distance is greater than the second distance.

2. The display panel according to claim 1, characterized in that, The quantum dot color conversion unit is located on the driving substrate and covers a corresponding light-emitting element.

3. The display panel according to claim 1, characterized in that, The light-absorbing layer has a groove at the position corresponding to the quantum dot color conversion unit, and the light-converging element is at least partially embedded in the groove.

4. The display panel according to claim 3, characterized in that, The orthographic projection of the quantum dot color conversion unit on the driving substrate is located within the orthographic projection of the opening of a corresponding groove on the driving substrate.

5. The display panel according to claim 3, characterized in that, The depth of the groove is greater than or equal to half the thickness of the light-absorbing layer and less than the thickness of the light-absorbing layer.

6. The display panel according to any one of claims 1 to 5, characterized in that, The light-absorbing layer includes a black matrix layer located on the reflective layer.

7. The display panel according to claim 6, characterized in that, The thickness of the reflective layer is greater than or equal to 10 μm, and the thickness of the black matrix layer is greater than or equal to 10 μm.

8. The display panel according to claim 3, characterized in that, The light-absorbing layer includes at least two color resist layers that are sequentially stacked on the reflective layer.

9. The display panel according to claim 8, characterized in that, The sum of the thicknesses of the at least two color resist layers is greater than or equal to 10 μm.

10. The display panel according to claim 8, characterized in that, The display panel includes a first color resist layer, a second color resist layer, and a third color resist layer. The first color resist layer, the second color resist layer, and the third color resist layer are each one of a red color resist layer, a green color resist layer, and a blue color resist layer, respectively, and the first color resist layer, the second color resist layer, and the third color resist layer are different colors.

11. The display panel according to claim 10, characterized in that, The groove extends from the side of the third color resist layer away from the reflective layer through the third color resist layer and into the second color resist layer. The depth of the groove is greater than the thickness of the third color resist layer and less than the sum of the thicknesses of the second and third color resist layers.

12. The display panel according to claim 3, characterized in that, The light-absorbing layer includes at least one color resist layer stacked sequentially on the reflective layer and a black matrix layer located on the side of the at least one color resist layer away from the reflective layer.

13. The display panel according to claim 12, characterized in that, The sum of the thicknesses of the at least one color resist layer and the black matrix layer is greater than or equal to 10 μm.

14. The display panel according to claim 12, characterized in that, The display panel includes a first color resist layer and a second color resist layer, wherein the first color resist layer and the second color resist layer are one of a red color resist layer, a green color resist layer, and a blue color resist layer, and the first color resist layer and the second color resist layer are different colors.

15. The display panel according to claim 14, characterized in that, The groove extends from the side of the black matrix layer away from the reflective layer through the black matrix layer and into the second color resist layer. The depth of the groove is greater than the thickness of the black matrix layer and less than the sum of the thicknesses of the second color resist layer and the black matrix layer.

16. The display panel according to any one of claims 1 to 5, characterized in that, The reflective layer has through holes at positions corresponding to the light-emitting elements, and each light-emitting element is located within one of the through holes.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 16.

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