Display panel and display device

Abstract

The embodiment of the present invention discloses a display panel and a display device, the display panel comprising: a substrate; a plurality of light-emitting devices arranged in an array on one side of the substrate; the light-emitting device comprising a plurality of light-emitting areas; an electro-shading layer corresponding to the light-emitting area; the electro-shading layer is used to control the luminous flux of light emitted from the light-emitting area under the control of an electro-control signal; a color conversion layer comprising a plurality of color conversion structures; the color conversion structure is located on the light-emitting side of the light-emitting device; at least part of the light emitted by the light-emitting device is emitted after passing through the color conversion structure. The embodiment of the present invention can reduce the number of light-emitting devices provided in the display panel and reduce the design difficulty while ensuring that the display panel has a high resolution; and when the light-emitting device is a Micro LED, the number of transfers of the light-emitting device can be reduced, thereby improving the transfer yield and reducing the preparation cost.

Description

Technical Field

[0001] Embodiments of the present invention relate to display technology, and more particularly to a display panel and a display device. Background Art

[0002] With the development of display technology, people have higher and higher requirements on the display quality of display devices. Generally, the higher the resolution of a display device, the higher the degree of refinement of the image it presents, so that the display quality of the displayed image is higher.

[0003] However, the higher the resolution of the display device, the more light-emitting devices there are in the display panel, and the smaller the size of the light-emitting devices, which will greatly increase the design difficulty. In particular, for micro-light-emitting diode (Micro LED) display devices, the higher the resolution, the more Micro LED chips need to be transferred, which will increase the number of transfers of Micro LED chips, thereby affecting the transfer yield and increasing the manufacturing cost. Summary of the invention

[0004] Embodiments of the present invention provide a display panel and a display device, so as to reduce the design difficulty and the manufacturing cost while ensuring that the display panel has a high resolution.

[0005] In a first aspect, an embodiment of the present invention provides a display surface, including:

[0006] substrate substrate;

[0007] A plurality of light-emitting devices arranged in an array on one side of the substrate; the light-emitting devices include a plurality of light-emitting areas; the light-emitting areas are provided with electro-shading layers corresponding to the light-emitting areas; the electro-shading layers are used to control the luminous flux of light emitted from the light-emitting areas under the control of electro-control signals;

[0008] The color conversion layer includes a plurality of color conversion structures; the color conversion structures are located on the light-emitting side of the light-emitting device; at least part of the light emitted by the light-emitting device is emitted after passing through the color conversion structures.

[0009] In a second aspect, an embodiment of the present invention further provides a display device, including: the above-mentioned display panel.

[0010] The display panel and the display device provided by the embodiments of the present invention are configured with an electro-shading layer corresponding to different light-emitting areas of the light-emitting device, and the electro-shading layer can control the luminous flux of the light emitted from the corresponding light-emitting area under the control of the electro-shading control signal, so as to control the luminous brightness of each light-emitting area; at the same time, by configuring a color conversion layer on the light-emitting side of the light-emitting device, at least part of the light emitted by the light-emitting device can be converted into light of corresponding color after passing through the color conversion structure of the color conversion layer, so that the light emitted from different light-emitting areas of the light-emitting device can present different luminous colors; in this way, the electro-shading layer is combined with the color conversion structure of the color conversion layer, so that the area where each light-emitting device is located can emit light of different colors and brightness at the same time, that is, one light-emitting device can realize the light-emitting function of multiple light-emitting devices, and the area where each light-emitting device is located can be used as a pixel unit alone, so that the number of light-emitting devices required to be set in each pixel unit can be reduced while ensuring that the display panel has a higher resolution, thereby reducing the design difficulty; in particular, when the light-emitting device is a Micro LED, since the number of light-emitting devices required to be set in the display panel is reduced, it means that the number of transfers of the MicroLED can be reduced, thereby improving the transfer yield and reducing the preparation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic diagram of the structure of a display panel of a related technology;

[0012] Figure 2 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0013] Figure 3 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0014] Figure 4 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0015] Figure 5 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 6 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0017] Figure 7 is a schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention;

[0018] Figure 8 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0019] Fig. 9 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0020] Fig.10 is a structural schematic diagram of another display panel provided by an embodiment of the present invention;

[0021] Fig.11 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0023] It should be mentioned before discussing the exemplary embodiments in more detail that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the steps as sequential processes, many of the steps therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of the steps can be rearranged. The process can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0024] Figure 1 is a schematic diagram of the structure of a display panel of a related technology, such as Figure 1 As shown, the display panel 001 includes a base substrate 010, a plurality of light emitting devices 020 disposed on the base substrate 010, and a color conversion layer 030 located on the side of the light emitting device 020 away from the base substrate; the color conversion layer 030 includes a plurality of color conversion structures (031, 032, 033) of different colors, wherein each color conversion structure (031, 032, 032) is disposed in one-to-one correspondence with each light emitting device 020. At this time, the light emitted by the light emitting device 020 corresponding to the color conversion structure 031 emits a light of the first color after passing through the color conversion structure 031, the light emitted by the light emitting device 020 corresponding to the color conversion structure 032 emits a light of the second color after passing through the color conversion structure 032, and the light emitted by the light emitting device 020 corresponding to the color conversion structure 033 emits a light of the third color after passing through the color conversion structure 033, so that the areas where different light emitting devices 020 are located can emit light of different colors and different brightness, thereby enabling the display panel 001 to achieve color display.

[0025] However, since the area where each light-emitting device in the display panel of the prior art is located can only emit light of one color, if a high-resolution display effect is to be achieved, more light-emitting devices need to be arranged in the display panel, which will increase the difficulty of designing the display panel. In particular, for Micro LED display panels, the higher the resolution, the more Micro LED chips need to be transferred, which will increase the number of transfers of Micro LED chips, thereby affecting the transfer yield and increasing the manufacturing cost.

[0026] Based on the above technical problems, an embodiment of the present invention provides a display panel, which includes a substrate; a plurality of light-emitting devices arranged in an array on one side of the substrate; the light-emitting device includes a plurality of light-emitting areas; an electro-shading layer is provided corresponding to the light-emitting area; the electro-shading layer is used to control the luminous flux of light emitted from the light-emitting area under the control of an electro-control signal; a color conversion layer includes a plurality of color conversion structures; the color conversion structure is located on the light-emitting side of the light-emitting device; at least part of the light emitted by the light-emitting device is emitted after passing through the color conversion structure.

[0027] By adopting the above technical solution, an electro-shading layer is correspondingly arranged in different light-emitting areas of the light-emitting device, and the electro-shading layer can control the luminous flux of the light emitted from the corresponding light-emitting area under the control of the electro-shading control signal to control the luminous brightness of each light-emitting area; at the same time, a color conversion layer is arranged on the light-emitting side of the light-emitting device, so that at least part of the light emitted by the light-emitting device can be converted into light of corresponding color after passing through the color conversion structure of the color conversion layer, so that the light emitted from different light-emitting areas of the light-emitting device can present different luminous colors; in this way, the electro-shading layer is combined with the color conversion structure of the color conversion layer, so that each area where the light-emitting device is located can emit light of different colors and brightness at the same time, that is, one light-emitting device can realize the light-emitting function of multiple light-emitting devices, and the area where each light-emitting device is located can be used as a pixel unit alone, so that on the premise of ensuring that the display panel has a higher resolution, the number of light-emitting devices required to be arranged in each pixel unit can be reduced, thereby reducing the design difficulty; in particular, when the light-emitting device is a Micro LED, since the number of light-emitting devices required to be arranged in the display panel is reduced, it means that the number of transfers of the Micro LED can be reduced, thereby improving the transfer yield and reducing the preparation cost.

[0028] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Figure 2is a schematic diagram of the structure of a display panel provided by an embodiment of the present invention, such as Figure 2 As shown, the display panel 100 includes: a base substrate 10; a plurality of light-emitting devices 20 arranged in an array on one side of the base substrate 10; the light-emitting device 20 includes a plurality of light-emitting areas (210, 220); the light-emitting areas (210, 220) are provided with electro-shading layers 21 correspondingly; the electro-shading layer 21 is used to control the luminous flux of light emitted from the light-emitting areas (210, 220) under the control of an electro-shading control signal.

[0030] Exemplarily, the light emitting device 20 includes two light emitting areas 210 and 220. The sizes and light emission directions of different light emitting areas 210 and 220 of the same light emitting device can be the same or different; each light emitting area (210, 220) of the light emitting device 20 is correspondingly provided with an electro-shading layer 21. At this time, the electro-shading layer 21 provided in different light emitting areas (210, 220) can be controlled by different electro-shading control signals, so that the electro-shading layer 21 provided in different light emitting areas (210, 220) has different luminous fluxes, so that different light emitting areas (210, 220) of the light emitting device 20 present different light emitting brightness, that is, different light emitting areas (210, 220) of the light emitting device 20 can have different grayscales.

[0031] Continue to refer Figure 2 A color conversion layer 30 is also provided on the light-emitting side of the light-emitting device 20, and the color conversion layer 30 includes a plurality of color conversion structures 31. The colors of the color conversion structures 31 provided on the light-emitting sides of different light-emitting devices 20 may be the same or different; the light emitted by the light-emitting device 20 emits light of different colors after passing through color conversion structures of different colors; wherein, the light emitted by the light-emitting device 20 may all be emitted after passing through the color conversion structure 31, or a part of the light emitted by the light-emitting device 20 may be emitted after passing through the color conversion structure 31, and the other part of the light may be directly emitted without passing through the color conversion structure 31.

[0032] For example, each light emitting device 20 includes two light emitting areas 210 and 220 , and a portion of light emitted by the light emitting device 20 is emitted after passing through the color conversion structure 31 , and another portion of light is emitted directly without passing through the color conversion structure 31 . A color conversion structure 31 is correspondingly arranged at the light-emitting area 210, while a color conversion structure is not correspondingly arranged at the light-emitting area 220; at this time, the light emitted from the light-emitting area 210 of the light-emitting device 20 is emitted after passing through the color conversion structure 31, so that the color conversion structure 31 converts the light emitted from the light-emitting area 210 of the light-emitting device 20 into light of other colors, which is different from the color of the light emitted by the light-emitting device 20 itself, and the light emitted from the light-emitting area 220 of the light-emitting device 20 does not pass through the color conversion structure, and maintains the light color of the light-emitting device 20 itself; in this way, each light-emitting device 20 can emit light of two colors, namely, the light of the light-emitting device 20 itself and the light after color conversion by the color conversion structure 31, so that one light-emitting device 20 can be equivalent to the original two light-emitting devices, thereby reducing the number of light-emitting devices 20 in the display panel 100 while making the display panel 100 have a higher resolution, thereby reducing the design difficulty and reducing the preparation cost.

[0033] It can be understood that the light-emitting device can be a sub-millimeter light-emitting diode (Mini LED) or a micro light-emitting diode (Micro LED), etc.; the color conversion layer can include photoinduced quantum dot (QD) material, and the light-emitting device excites the quantum dots in the color conversion layer to emit light with a different color from the light-emitting device 20 itself.

[0034] Among them, when the light-emitting device is a sub-millimeter light-emitting diode (Mini LED) or a micro light-emitting diode (MicroLED), the light-emitting device is usually transferred to the substrate of the display panel through mass transfer technology after the light-emitting device is prepared, and the electrode in the light-emitting device is bonded to the electrode on the substrate. In the process of mass transfer, there is a certain probability that the light-emitting device will be damaged due to some uncontrollable factors. In order not to affect the subsequent display effect, the damaged light-emitting device needs to be repaired. Since the number of light-emitting devices transferred each time is certain, when the number of light-emitting devices in the display panel is large, multiple transfers are required. Each transfer will cause a certain number of light-emitting devices to be damaged, which increases the number of light-emitting devices that need to be repaired, which will affect the transfer yield of the light-emitting device and require a higher repair cost.

[0035] In the embodiment of the present invention, different light-emitting areas of each light-emitting device can present light of different colors and different brightnesses, so that the area where each light-emitting device is located can emit light of different colors and brightnesses at the same time, that is, one light-emitting device can realize the light-emitting function of multiple light-emitting devices, which makes the area where each light-emitting device is located can be used as a pixel unit alone, thereby ensuring that the display panel has a higher resolution. Under the premise of reducing the number of light-emitting devices required to be set in each pixel unit, that is, reducing the number of light-emitting devices set in the display panel; because the number of light-emitting devices required to be set in the display panel is reduced, it means that the number of transfers of the light-emitting devices can be reduced, the number of light-emitting devices damaged due to transfer can be reduced, and the number of light-emitting devices that need to be repaired can be reduced, thereby improving the transfer yield and reducing the preparation cost.

[0036] Optional, continue to refer to Figure 2 The electro-shading layer 21 in the same light-emitting device 20 includes a plurality of electro-shading structures (2110, 2120) corresponding to different light-emitting areas (210, 220), and each electro-shading structure (2110, 2120) is insulated from each other.

[0037] For example, the light emitting device 20 includes two light emitting areas 210 and 220. The light emitting area 210 is provided with an electro-shading structure 2210, and the light emitting area 220 is provided with an electro-shading structure 2220; at this time, the electro-shading structure 2210 can control the luminous flux of the light emitted by the light emitting area 210, and the electro-shading structure 2220 can control the luminous flux of the light emitted by the light emitting area 220. Since the electro-shading structures (2110, 2120) are insulated from each other, the electro-shading control signals received by the electro-shading structure 2210 and the electro-shading structure 2220 may not affect each other, so that when the electro-shading structure 2210 and the electro-shading structure 2220 receive different electro-shading control signals, they can respectively control the light emitted from different light-emitting areas (210, 220) to have different luminous fluxes, so that different light-emitting areas (210, 220) of the same light-emitting device 20 present different light-emitting brightness, that is, present different display grayscales.

[0038] Among them, in the light-emitting device 20, the electro-shading structures (2110, 2120) arranged in different light-emitting areas (210, 220) can be arranged at intervals and not in contact with each other to achieve an insulation effect; or, an insulator 22 can be arranged between the electro-shading structures (2110, 2120) arranged in different light-emitting areas (210, 220) so that the electro-shading structures (2110, 2120) in different light-emitting areas (210, 220) are insulated from each other. When an insulator 22 can be arranged between the electro-shading structures (2110, 2120) arranged in different light-emitting areas (210, 220), the insulator 22 has a certain insulation effect and a light-shielding effect, that is, the insulator 22 can be a light-shielding insulator to prevent crosstalk between the light emitted from different light-emitting areas (210, 220) and improve the accuracy of the light emitted from each light-emitting area (210, 220).

[0039] It should be noted that Figure 2 The accompanying drawings are merely exemplary of the embodiments of the present invention. Figure 2 It is only exemplarily shown that the light emitting device 20 includes two light emitting areas (210, 220), and the light emitting surfaces of each light emitting area (210, 220) of the light emitting device 20 are located in the same plane. In the embodiment of the present invention, the light emitting surfaces of each light emitting area may also be continuous but not coplanar, and the embodiment of the present invention does not specifically limit this.

[0040] Optional, Figure 3 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Figure 3 As shown, in the light-emitting device 20, the value range of the first internal angle θ formed by the light-emitting surfaces (211, 221) of two adjacent light-emitting areas (210, 220) is: 90°<θ<180°; wherein the first internal angle θ is the angle formed by the two adjacent light-emitting surfaces (211, 221) toward the side of the base substrate 10.

[0041] For example, the light emitting device 20 includes two light emitting areas 210 and 220. The first internal angle θ formed by the light emitting surface 211 of the light emitting area 210 and the light emitting surface 221 of the light emitting area 220 is greater than 90° and less than 180°, that is, the first internal angle θ is an obtuse angle, and the light emitting device 20 can be a structure that is wide at the bottom and narrow at the top; at this time, the light L1 emitted from the light emitting surface 211 of the light emitting area 210 sequentially passes through the electro-shading structure 2110 disposed in the light emitting area 210 and the color conversion structure 31 corresponding to the light emitting area 210, and then propagates to the light emitting side 1001 of the display panel 100, and the light emitting area 22 The light L2 emitted from the light emitting surface 221 of the light emitting device 20 can also propagate to the light emitting side 1001 of the display panel 100 after passing through the electro-shading structure 2120 arranged in the light emitting area 220; in this way, it is possible to prevent the light emitted by the light emitting device 20 from being directed toward one side of the substrate and affecting the light emitting brightness of the light emitted by each light emitting area (210, 220) of the light emitting device 20 at the light emitting side 1001 of the display panel 100, that is, by making the light emitting surface ( The light emitted by each light-emitting area (211, 221) can be transmitted to the light-emitting side 1001 of the display panel 100, ensuring that the light emitted by each light-emitting area (210, 220) has a high utilization rate, thereby ensuring the luminous brightness of each light-emitting area (210, 220), and further improving the display effect of the display panel 100 under the premise of ensuring that the display panel 100 has a high resolution; in addition, by making the first internal angle θ formed by the light-emitting surfaces (211, 221) of two adjacent light-emitting areas (210, 220) in the light-emitting device 20 change within a range greater than 90° and less than 180°, the space in the direction Z perpendicular to the plane where the substrate 10 is located can be fully utilized, and under the premise of ensuring that the light-emitting surfaces (211, 221) of each light-emitting area (210, 220) of the light-emitting device 20 have a large size, the occupied space of the light-emitting device 20 in the arrangement direction X of each light-emitting area (210, 220) can be reduced, which is conducive to further improving the resolution of the display panel 100.

[0042] It should be noted that Figure 2 and Figure 3 The technical solutions of the embodiments of the present invention are exemplarily described by taking the light-emitting device 20 including two light-emitting areas (210, 220) as an example; in the embodiments of the present invention, the number of light-emitting areas in the light-emitting device can also be three or more, and its technical principle is similar to that when the light-emitting device includes two light-emitting areas. The embodiments of the present invention are exemplarily described below by taking the light-emitting device including three light-emitting areas as an example.

[0043] For example, Figure 4 is a structural schematic diagram of another display panel provided by an embodiment of the present invention, Figure 4 and Figure 2 and Figure 3 For similarities, please refer to the above Figure 2 and Figure 3 The description of Figure 4 and Figure 2 and Figure 3 The differences are exemplarily described. Figure 4 As shown, the light emitting device 20 includes three light emitting areas (210, 220, 230). Among them, the light emitting area 210 is correspondingly provided with an electro-shading structure 2110 and a color conversion structure 31, the light emitting area 220 is correspondingly provided with an electro-shading structure 2120 and a color conversion structure 32, and the light emitting area 230 is correspondingly provided with only an electro-shading structure 2130, and no color conversion structure is provided. At this time, the color conversion structure 31 and the color conversion structure 32 can be color conversion structures of different colors, so that the light emitted from different light emitting areas of each light emitting device 20 is presented as three different colors on the light emitting side 1001 of the display panel, that is, one light emitting device 20 can realize the functions of the original three light emitting devices, thereby further reducing the number of light emitting devices provided in the display panel 100, and reducing the design difficulty and preparation cost of the display panel.

[0044] At the same time, when the light-emitting device 20 includes three light-emitting areas (210, 220, 230), and the first internal angle θ formed by the light-emitting surfaces (211 and 231, 231 and 221) of two adjacent light-emitting areas (210 and 230, 230 and 220) is greater than 90° and less than 180°, the light emitted from the light-emitting surfaces (211, 221, 231) of each light-emitting area (210, 220, 230) in the light-emitting device 20 can also be transmitted to the light-emitting side 1001 of the display panel 100, ensuring that the light emitted by each light-emitting area (210, 220, 230) has a high utilization rate, thereby ensuring the luminous brightness of each light-emitting area (210, 220, 230), and further improving the display effect of the display panel 100 while ensuring that the display panel 100 has a high resolution.

[0045] It can be understood that, for the convenience of description, unless otherwise specified, the embodiments of the present invention all take the light-emitting device including three light-emitting areas as an example to exemplarily illustrate the technical solutions of the embodiments of the present invention.

[0046] Optional, continue to refer to Figure 4In the light emitting device 20, along the arrangement direction X of each light emitting area (210, 220, 230), a plurality of continuous light emitting areas (210, 220, 230) and the base substrate 10 where the light emitting device 20 is located are sequentially connected end to end to form a closed area. In this way, each light emitting area (210, 220, 230) of the light emitting device 20 is located on the side of the base substrate 10 facing the light emitting side 1001 of the display panel 100, so that the light emitted by each light emitting area (210, 220, 230) of the light emitting device 20 can be transmitted to the light emitting side 1001 of the display panel 100, thereby improving the utilization rate of the light emitted by each light emitting area (210, 220, 230) of the light emitting device 20.

[0047] Exemplarily, taking the example that the light-emitting device 20 includes three light-emitting areas (210, 220, 230), the light-emitting area of ​​the light-emitting device 20 may include a positive light-emitting area 230 parallel to the plane where the substrate 10 is located, and side light-emitting areas 210 and 220 located on both sides of the positive light-emitting area 230 and between the positive light-emitting area 230 and the substrate, and the light-emitting surfaces (211 and 221) of the side light-emitting areas (210 and 220) intersect with the plane where the substrate 10 is located; at this time, the light-emitting device 20 can be a trapezoidal structure that is wide at the bottom and narrow at the top, so that the space in the direction Z perpendicular to the plane where the substrate 10 is located can be fully utilized, and on the premise that the light-emitting surfaces (211, 221, 231) of each light-emitting area (210, 220, 230) of the light-emitting device 20 have a larger size, the occupied space of the light-emitting device 20 in the arrangement direction X of its each light-emitting area (210, 220) can be reduced, which is beneficial to further improve the resolution of the display panel 100.

[0048] Optional, Figure 5 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Figure 5 As shown, the light emitting device 20 further includes a light emitting layer 22 , and the light emitting layers 22 located in different light emitting regions ( 210 , 220 , 230 ) are continuous and not coplanar.

[0049] Exemplarily, taking the light-emitting device 20 including three light-emitting areas (210, 220, 230) as an example, the light-emitting layer 22 located in the light-emitting area 210, the light-emitting layer 22 located in the light-emitting area 230, and the light-emitting layer 22 located in the light-emitting area 220 are connected in sequence along the X direction, and the plane where the light-emitting layer 22 located in the light-emitting area 210 is located intersects with the plane where the light-emitting layer 22 located in the light-emitting area 230 is located, and the plane where the light-emitting layer 22 located in the light-emitting area 230 is located intersects with the plane where the light-emitting layer 22 located in the light-emitting area 220 is located. At this time, the directions of light emitted from different light-emitting areas (210, 220, 230) are different, so that the light-emitting device 20 has a larger light-emitting angle; at the same time, under the premise of ensuring that the light-emitting device 20 has a larger light-emitting angle, by setting the light-emitting layer 22 of different light-emitting areas (210, 220, 230) in a continuous and non-coplanar manner, it is beneficial to simplify the preparation process of the light-emitting layer, and can make full use of the space in the Z direction, which is beneficial to reducing the size of the light-emitting device in the X direction, thereby facilitating increasing the number of light-emitting devices 10 that can be set in the display panel 100, and further ensuring that the display panel 100 has a higher resolution.

[0050] In addition, continue to refer to Figure 5 The light-emitting device 20 should also include a first electrode layer 23 and a second electrode layer 24 located on opposite sides of the light-emitting layer 22. The first electrode layer 23, the light-emitting layer 22 and the second electrode layer 24 form a PIN junction, so that when corresponding driving signals are applied to the first electrode layer 23 and the second electrode layer 24 respectively, carriers can be injected from the first electrode layer 23 and the second electrode layer 24 into the light-emitting layer 22 respectively, for example, electrons are injected from the first electrode 23 into the light-emitting layer 22, and holes are injected from the second electrode layer 24 into the light-emitting layer 22, so that electrons and holes recombine in the light-emitting layer 22 to emit light. Among them, when the light-emitting layers 22 located in different light-emitting areas (210, 220, 230) in the light-emitting device 20 are continuous and non-coplanar, the first electrode layer 23 and the second electrode layer 24 located in different light-emitting areas (210, 220, 230) can also be continuous and non-coplanar structures. At this time, the first electrode layer 23, the light-emitting layer 22 and the second electrode layer 24 of each light-emitting area (210, 220, 230) can all form a complete PIN junction, ensuring that each light-emitting area (210, 220, 230) can emit light efficiently and stably.

[0051] Optional, continue to refer to Figure 5When the electro-shading layer 21 of each light-emitting device 20 includes a first electro-shading structure 2110 and a second electro-shading structure 2120 located at different positions (210, 220), the color conversion layer 30 may include a first color conversion structure 31 and a second color conversion structure 32; at this time, the first color conversion structure 31 is located on the side of the first electro-shading structure 2110 away from the light-emitting layer 22; the second color conversion structure 32 is located on the side of the second electro-shading structure 2120 away from the light-emitting layer 22; at least part of the light emitted by the light-emitting device 20 after passing through the first color conversion structure 31 has a different wavelength from the light emitted after passing through the second color conversion structure 32.

[0052] Specifically, the light emitted from the light-emitting area 210 emits light of the first wavelength after reaching the light-emitting side 1001 of the display panel 100 via the color conversion structure 31, and the light emitted from the light-emitting area 220 emits light of the second wavelength after reaching the light-emitting side 1001 of the display panel 100 via the color conversion structure 32; at this time, the wavelength of the light of the first wavelength is different from that of the light of the second wavelength, that is, the color of the light of the first wavelength is different from that of the light of the second wavelength, for example, the color of the light of the first wavelength can be one of red, green and blue, and the color of the light of the second wavelength can be another of red, green and blue. In this way, the light emitted from different light-emitting areas (210, 220) of each light-emitting device 20 emits light of different colors after passing through different color conversion structures (31, 32), so that one light-emitting device 20 can realize the functions of two light-emitting devices in the prior art.

[0053] At the same time, by arranging the first color conversion structure 31 on the side of the first electro-shading structure 2110 away from the light-emitting layer 22, the light emitted from the light-emitting layer 22 in the light-emitting area 210 can be emitted after passing through the first electro-shading structure 2110 and the first color conversion structure 31 in sequence, thereby preventing the light emitted from the light-emitting layer 22 in the light-emitting area 210 from being directly emitted without passing through the first electro-shading structure 2110 and the first color conversion structure 31, or being emitted only through one of the first electro-shading structure 2110 and the first color conversion structure 31, thereby affecting the light emitted from the light-emitting layer 22 in the light-emitting area 210. The luminous brightness and luminous color of 210, that is, by sequentially arranging the luminous layer 22, the first electro-shading structure 2110 and the first color conversion structure 31 in the luminous area 210, the luminous accuracy of the luminous area 210 can be ensured; similarly, by arranging the second color conversion structure 32 on the side of the second electro-shading structure 2120 away from the luminous layer 22, the light emitted by the luminous layer 22 in the luminous area 220 can be emitted after passing through the second electro-shading structure 2120 and the second color conversion structure 32 in sequence, thereby ensuring the luminous accuracy of the luminous area 220.

[0054] Optional, continue to refer to Figure 5, the electro-shading layer 21 of each light-emitting device 20 further includes a third electro-shading structure 2103; the third electro-shading structure 2130 and the first electro-shading structure 2110 and the second electro-shading structure 2120 are all located in different light-emitting areas, that is, the third electro-shading structure 2130 is located in the third light-emitting area 230; the third electro-shading structure 2130 is not provided with a color conversion structure on the side away from the light-emitting layer 202. At this time, the light emitted by the light-emitting layer 22 in the light-emitting area 230 directly reaches the light-emitting side 1001 of the display panel 100 only after passing through the third electro-shading structure 2130.

[0055] For example, taking the light emitted by the light emitting device 20 as the light of the third wavelength as an example, the wavelengths of the light of the first wavelength, the light of the second wavelength, and the light of the third wavelength are different, and the color of the light of the first wavelength can be one of red, green, and blue, the color of the light of the second wavelength can be one of red, green, and blue, and the color of the light of the third wavelength can also be one of red, green, and blue. When the color of the light of the third wavelength is blue, the light emitting device 20 can be a blue light LED chip, in which case the color of the light of the second wavelength can be green, and the color of the light of the first wavelength can be red. In this way, different light-emitting areas (210, 220, 230) of each light-emitting device 20 can respectively present red light, green light and blue light, and the red light, green light and blue light can display different colors in different grayscale ratio combinations, so that the display panel 100 has a higher color gamut; at the same time, compared with the situation in which each pixel unit in the prior art requires three light-emitting devices of different colors, each light-emitting device 20 in the embodiment of the present invention can be used as a pixel unit alone, that is, one light-emitting device 20 can realize the functions of three light-emitting devices in the prior art, so that while reducing the number of light-emitting devices 20, it can also ensure that the display panel 100 still has a higher resolution.

[0056] Optional, continue to refer to Figure 5 , the third electro-shading structure 2130 is located between the first electro-shading structure 2110 and the second electro-shading structure 2120; in this way, the first electro-shading structure 2110, the third electro-shading structure 2130 and the second electro-shading structure 2120 are arranged in sequence along the X direction without affecting each other, so as to be able to control the luminous flux of each light-emitting area (210, 230, 220) respectively, that is, to control the luminous brightness of each light-emitting area (210, 230, 220) respectively, so that different light-emitting areas (210, 230, 220) can have different display grayscales.

[0057] Optional, Figure 6 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Figure 6As shown, a surface 203 of the third electro-light-shielding structure 2130 facing away from the light-emitting layer 22 is flush with the light-emitting surfaces (301, 302) of the color conversion structures (31, 32).

[0058] Specifically, the light emitted by the light-emitting layer 22 of the light-emitting area 210 needs to pass through the first electro-shading structure 2110 and the first color conversion structure 31 in sequence, and then be emitted from the light-emitting surface 301 of the first color conversion structure 31 to reach the light-emitting side 1001 of the display panel 100. The light emitted by the light-emitting layer 22 of the light-emitting area 220 needs to pass through the second electro-shading structure 2110 and the second color conversion structure 32 in sequence, and then be emitted from the light-emitting surface 302 of the second color conversion structure 32 to reach the light-emitting side 1001 of the display panel 100. The light emitted by the light-emitting layer 22 of the light-emitting area 230 only needs to pass through the third electro-shading structure 2110 and the second color conversion structure 32. After 30, the light is emitted from the side surface 203 of the third electro-shading structure 2130 away from the light-emitting layer 22 to reach the light-emitting side 1001 of the display panel 100; by making the light emission surface 301 of the first color conversion structure 31, the light emission surface 302 of the second color conversion structure 32 and the side surface 203 of the third electro-shading structure 2130 away from the light-emitting layer 22 remain flush, the surface of the light emitting from each light-emitting area (210, 220, 230) can be kept flat, ensuring the uniformity of the light emitted from each light-emitting area (210, 220, 230), which is beneficial to improving the display uniformity of the display panel 100.

[0059] Optionally, the angle between the light incident surface of the color conversion structure and the surface of the electro-shading layer on the side away from the light-emitting layer in the light-emitting area corresponding to the color conversion structure is α; wherein 0°≤α≤10°; the second inner angle formed by the surface of the electro-shading layer on the side away from the light-emitting layer and the plane where the substrate is located is The value range of is: second interior angle It is the angle toward the light-emitting layer in the angle formed by the surface of the electro-shading structure on the side facing away from the light-emitting layer and the plane where the substrate is located.

[0060] Specifically, Figure 7 is a partial structural diagram of a display panel provided by an embodiment of the present invention, combined with reference Figure 6 and Figure 7, take the example that the light emitting device 10 includes the light emitting area 210 and the light emitting area 220, the electro-shading layer 21 includes the first electro-shading structure 2110 and the second electro-shading structure 2120, and the color conversion layer 30 includes the first color conversion structure 31 and the second color conversion structure 32. The first color conversion structure 31 corresponds to the light emitting area 210, that is, the first color conversion structure 31 is located on the side of the first electro-shading structure 2110 in the light emitting area 210 away from the light emitting layer 22, and the light incident surface 303 of the first color conversion structure 31 is opposite to the side surface 201 of the first electro-shading structure 2110 away from the light emitting layer 22; the second color conversion structure 32 corresponds to the light emitting area 220, that is, the second color conversion structure 32 is located on the side of the second electro-shading structure 2120 in the light emitting area 220 away from the light emitting layer 22, and the light incident surface 304 of the second color conversion structure 32 is opposite to the side surface 202 of the second electro-shading structure 2120 away from the light emitting layer 22. The light incident surface 303 of the first color conversion structure 31 is the surface of the first color conversion structure 31 that receives the light emitted from the light-emitting layer 22 in the light-emitting area 210 through the first electro-shading structure 2110, and the light incident surface 304 of the second color conversion structure 32 is the surface of the second color conversion structure 32 that receives the light emitted from the light-emitting layer 22 in the light-emitting area 220 through the second electro-shading structure 2120; and the plane where the base substrate 10 is located is a plane parallel to the X direction.

[0061] Taking the corresponding relationship between the second color conversion structure 32 and the second electro-shading structure 2120 in the light-emitting area 220 as an example, by making the second inner angle formed by the side surface 202 of the second electro-shading structure 2120 away from the light-emitting layer 22 and the plane where the substrate 10 is located Set to be greater than or equal to 0° and less than 90°, i.e. the second interior angle The acute angle can ensure that the side surface of the second electro-shading structure 2120 away from the light-emitting layer 22 faces the light-emitting side 1001 of the display panel 100, so that the light emitted by the light-emitting layer 22 in the light-emitting area 220 can be emitted after passing through the second electro-shading structure 2120 toward the light-emitting side 1001 of the display panel 100, so that the light emitted by the light-emitting layer 22 in the light-emitting area 220 has a higher light utilization rate; at the same time, by setting the angle α between the light incident surface 304 of the second color conversion structure 32 and the surface 202 of the second electro-shading structure 2120 away from the light-emitting layer 22 to be greater than or equal to 0° and less than or equal to 10°, the angle α varies within a smaller angle range, that is, ensuring that the light incident surface 304 of the second color conversion structure 32 and the second electro-shading structure 2120 are aligned with the light incident surface 304 of the second color conversion structure 32. The surfaces 202 of the second electro-shading structure 2120 on the side away from the light-emitting layer 22 are approximately parallel, so that the vertical distance from each position of the surface 202 of the second electro-shading structure 2120 on the side away from the light-emitting layer 22 to the light incident surface 304 of the second color conversion structure 32 is consistent, so that the optical path of the light emitted at each position in the light-emitting area 220 is consistent, thereby improving the uniformity of the light emission of the light-emitting area 220; at the same time, when the light incident surface 304 of the second color conversion structure 32 is approximately parallel to the surface 202 of the second electro-shading structure 2120 on the side away from the light-emitting layer 22, the light emitted from the surface 202 of the second electro-shading structure 2120 on the side away from the light-emitting layer 22 can all be converted in color through the second color conversion structure 32, thereby improving the utilization rate of the light.

[0062] It can be understood that the first color conversion structure 31 and the first electro-shading structure 2110 have a similar configuration as the second color conversion structure 32 and the second electro-shading structure 2120. The similarities can be referred to the above description of the second color conversion structure 32 and its corresponding light-emitting area 220, which will not be repeated here.

[0063] Optional, Figure 8 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Figure 8 As shown, the electro-shading layer 21 includes an electro-polymer layer 2101 and shading particles 2102 disposed in the electro-polymer layer 2101; the electro-polymer layer 2101 is used to expand or contract under the control of an electro-control signal to control the spacing between the shading particles 2102. The electro-polymer layer 2101 may be composed of an electrically activated polymer (EAP) material, and different electro-control signals may control the electro-polymer layer to have different expansion volumes, for example, the electro-polymer layer 2101 may expand to 150%-350% of the initial volume according to different electro-control signals.

[0064] Exemplarily, take the light-emitting device 20 including three light-emitting areas (210, 220, 230) as an example; if the light-emitting area 220 is required to have a larger luminous flux, the light-emitting area 230 has a second luminous flux, and the light-emitting area 210 has a smaller luminous flux, then the electropolymer layer 2101 in the light-emitting area 220 has a larger expansion volume under the control of the electro-controlled signal, and the light-shielding particles 2202 in the light-emitting area 220 have a larger spacing, so that the electro-shielding layer 21 of the light-emitting area 220 has a larger light-transmitting area, so that more light passes through between the light-shielding particles 2202, that is, the light emitted from the light-emitting area 220 has a larger luminous flux, so that the light-emitting area 220 has a higher luminous brightness; the expansion volume of the electropolymer layer 2101 in the light-emitting area 230 under the control of the electro-controlled signal is smaller than that of the light-emitting area 220. The expansion volume of the electropolymer layer 2101 in the light-emitting area 210 is smaller than the expansion volume of the electropolymer layer 2101 in the light-emitting area 230 under the control of the electro-induced control signal, the spacing between the shading particles 2202 in the light-emitting area 230 is smaller than the spacing between the shading particles 2202 in the light-emitting area 220, and the spacing between the shading particles 2202 in the light-emitting area 210 is smaller than the spacing between the shading particles 2202 in the light-emitting area 230, so that the light-transmitting area of ​​the electro-shading layer 21 in the light-emitting area 230 is second, and the light-transmitting area of ​​the electro-shading layer 21 in the light-emitting area 210 is smaller, that is, the luminous flux of the light emitted by the light-emitting area 230 is second, while the light-emitting area 210 has a smaller luminous flux, so that the luminous brightness of the light-emitting area 230 is second, while the light-emitting area 210 has a smaller luminous brightness. On the contrary, if the light-emitting area 220 needs to stop emitting light, the electropolymer layer 2101 in the light-emitting area 220 needs to be controlled to shrink under the control of the electrostatic control signal until there is no gap between two adjacent light-shielding particles 2202, so that no light can pass through the electrostatic light-shielding layer 21 in the light-emitting area 220.

[0065] In this way, by controlling the expansion or contraction of the electropolymer layer 2101 in different light-emitting areas (210, 220, 230), the volume of the electropolymer layer 2101 in each light-emitting area (210, 220, 230) can be controlled, so that the density between the light-shielding particles 2102 can be controlled by utilizing the volume change of the electropolymer layer 2104, thereby achieving the purpose of controlling the luminous flux of light emitted from each light-emitting area (210, 220, 230).

[0066] Optional, continue to refer to Figure 8, the light-shielding particles 2102 include inorganic nanoparticles with a reflective function. The inorganic nanoparticles may include inorganic metal nanoparticles, such as silver or aluminum nanoparticles, and the size thereof may be 30-150 nm. Thus, by utilizing the reflective function of the light-shielding particles 2102, the light transmitted to the surface of the light-shielding particles 2102 may be reflected and reused, thereby improving the utilization rate of the light emitted by the light-emitting device 20.

[0067] Optional, continue to refer to Figure 8 The surface of the electropolymer layer 2101 close to the light-emitting layer 22 is the first surface 2001 , the surface of the electropolymer layer 2101 away from the light-emitting layer 22 is the second surface 2002 , and the light-shielding particles 2102 are located on the side close to the second surface 2002 .

[0068] Specifically, the magnitude of the luminous flux is mainly related to the spacing between the light-shielding particles 2102 in the electropolymer layer 2101. The larger the spacing between the light-shielding particles 2102, the larger the luminous flux. Since the expansion space of the electropolymer layer 2101 close to the light-emitting layer 22 is smaller, and the expansion space of the electropolymer layer 2101 away from the light-emitting layer 22 is larger, when the expansion volume of the electropolymer layer 2101 is constant, the volume change of the electropolymer layer 2101 away from the light-emitting layer 22 is greater than the volume change of the electropolymer layer 2101 close to the light-emitting layer 22. At this time, if the shading particles 2102 are located on the side close to the first surface 2001, the variation of the spacing between the shading particles 2102 is small, while when the shading particles 2102 are located on the side close to the second surface 2002, the variation of the spacing between the shading particles 2102 is large; thus, compared with setting the shading particles 2102 on the side close to the first surface 2001, by setting the shading particles 2102 on the side close to the second surface 2002, the electropolymer layer 2101 can have a smaller expansion volume, and the light passing through the electropolymer layer 2101 can have a larger luminous flux. If the voltage of the electro-induced control signal is positively correlated with the expansion volume of the electro-induced polymer layer 2101, when the shading particles 2102 are set on the side close to the second surface 2002, it is beneficial to reduce the voltage of the electro-induced control signal; since the power consumption of the display panel 100 is positively correlated with the voltage of the electro-induced control signal, when the voltage of the electro-induced control signal is reduced, it is beneficial to low power consumption of the display panel 100.

[0069] Optional, continue to refer to Figure 8The display panel 100 further includes a light shielding flat layer 40, which is located on a side of the light emitting device 20 away from the base substrate 10. The light shielding flat layer 40 includes a plurality of first light shielding flat structures 41 corresponding to the light emitting devices 20 one by one, and the first light shielding flat structure 41 includes at least one first opening, and the first opening exposes the color conversion structure (31, 32), so that the light at the first opening can pass through the color conversion structure (31, 32), while the light at the position where the opening is not set cannot pass, thereby preventing the light transmitted by the two different color conversion structures (31, 32) from generating crosstalk and affecting the light emitting effect.

[0070] Optional, continue to refer to Figure 8 When the light-emitting device 20 includes a light-emitting layer 22, the electro-shading layer 21 includes a third electro-shading structure 2130, and no color conversion structure is provided on the side of the third electro-shading structure 2130 away from the light-emitting layer 22, the first light-shielding flat structure 41 also includes a second opening, which exposes the third electro-shading structure 2130.

[0071] Specifically, taking the example that each light-emitting device 20 corresponds to two color conversion structures (31, 32), namely the first color conversion structure 31 and the second color conversion structure 32, the first light-shielding flat structure 41 may include two first openings and one second opening, the two first openings respectively expose the first color conversion structure 31 and the second color conversion structure 32, and the second opening exposes the third electro-light-shielding structure 2130, so that light can pass through the first color conversion structure 31 and the second color conversion structure 32 at the first openings to reach the light-emitting side 1001 of the display panel, and pass through the third electro-light-shielding structure 2130 at the second openings to reach the light-emitting side 1001 of the display panel, while light at a position where no opening is set cannot pass through, thereby effectively solving the technical problem of affecting the light-emitting effect due to crosstalk of light in different light-emitting areas.

[0072] Optional, Fig. 9 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Fig. 9 As shown, the light-shielding planar layer 40 further includes a plurality of light-blocking structures 42, and the light-blocking structures 42 are located between two adjacent light-emitting devices 20 and / or between two adjacent first light-shielding planar structures 41. In this way, the light-blocking structures 42 can block the light in the areas where different light-emitting devices 20 are located from influencing each other, thereby preventing the light in the areas where different light-emitting devices 20 are located from crosstalk, thereby facilitating improving the display effect of the display panel 100.

[0073] It should be noted that Fig. 9 The accompanying drawings are merely exemplary of the embodiments of the present invention. Fig. 9The light blocking structure 42 is only exemplarily shown as a wedge-shaped structure located between two adjacent light-emitting devices 20. In the embodiment of the present invention, the light blocking structure can also be in the shape of a cuboid, a trapezoid, a triangular prism, etc. Under the premise of being able to prevent crosstalk between light in different light-emitting devices, the embodiment of the present invention does not specifically limit the shape of the light blocking structure.

[0074] Optional, continue to refer to Fig. 9 The display panel 100 further includes a metal reflective wall 50, which is located between the light blocking structure 42, the light emitting device 20 and the first light shielding flat structure 41, and the metal reflective wall 50 can reflect the light emitting device 20. In this way, by providing the metal reflective wall 50, the light that does not reach the light emitting side 1001 of the display panel 100 can be reflected for reuse, thereby improving the light utilization rate of the light emitting device 20, and further improving the display brightness of the display panel.

[0075] Optional, continue to refer to Fig. 9 , the surface of one side of the metal reflection wall 50 close to the light emitting device 20 is the first reflection surface 501, and the distance between the first reflection surface 501 and the central axis M of the light emitting device 20 increases in the direction Z from the base substrate 10 to the light emitting device 20. Among them, the central axis M of the light emitting device 20 is an axis perpendicular to the plane where the base substrate 100 is located. In this way, the light reflected by the first reflection surface 501 propagates toward the light emitting side 1001 of the display panel 100, thereby further improving the utilization rate of the light and improving the luminous efficiency. Among them, the first reflection surface 501 of the metal reflection wall 50 close to the light emitting device 20 can be a plane, a curved surface or a stepped surface, and the embodiment of the present invention does not specifically limit the shape of the first reflection surface 501 of the metal reflection wall 50 close to the light emitting device 20.

[0076] Optional, continue to refer to Fig. 9 The display panel 100 further includes a scattering layer 60, which is located between the color conversion structure (31, 32) and the electro-shading layer 21. In this way, the light emitted by the light emitting device 20 reaches the color conversion structure (31, 32) after being scattered by the scattering layer 60, so that the light received by the color conversion structure (31, 32) is more uniform, and the more uniform the light received by the color conversion structure (31, 32), the more uniform the light emitted after conversion, so that the light reaching the light emitting side 1001 of the display panel 100 can be made more uniform, thereby improving the display uniformity of the display panel 100.

[0077] Optional, Fig.10 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, such as Fig.10As shown, the display panel 100 further includes a plurality of pixel circuits 70 arranged in an array, which are located between the substrate 10 and the light-emitting device 20. The pixel circuit 70 includes a first transistor 71 and at least one second transistor 72. The light-emitting device 20 further includes a first electrode layer 23, a first electrode of the first transistor 71 receives a driving signal, and a second electrode of the first transistor 71 is electrically connected to the first electrode layer 23 of the light-emitting device 20; a first electrode of the second transistor 72 receives an electro-induced control signal, and a second electrode of the second transistor 72 is electrically connected to the electro-induced light-shielding layer 21. In this way, by controlling the first transistor 71 to be turned on or off, the driving signal can be controlled to be transmitted to the first electrode layer of the light-emitting device 20 to control the light-emitting device 20 to emit light; by controlling the second transistor 72 to be turned on or off, the electro-induced control signal can be controlled to be transmitted to the electro-induced light-shielding layer 21 to control the luminous flux of the light-emitting area where the electro-induced light-shielding layer 21 is located.

[0078] It should be noted that Fig.10 Only one second transistor 71 in each pixel circuit 70 is shown as an example. In the embodiment of the present invention, the number of second transistors arranged in the pixel circuit 70 can be the same as the number of light-emitting areas in the light-emitting device 20 driven by the pixel circuit 70, that is, when the light-emitting device 20 includes three light-emitting areas, three second transistors can be arranged in the pixel circuit 70, and each second transistor is electrically connected to the electro-shading layer 21 arranged in each light-emitting area, so that the electro-shading layer of each light-emitting area can control the luminous flux of the light emitted from each light-emitting area under the control of each electro-shading control signal transmitted by each second transistor.

[0079] In addition, continue to refer to Fig.10Since the first electrode layer of the light-emitting device 20 and the second electrode of the first transistor 71 are located in different film layers, and the electro-shading layer 21 and the second electrode of the second transistor 72 are also located in different film layers, the first electrode layer 23 needs to be electrically connected to the second electrode of the first transistor 71 through a via hole, and the electro-shading layer 21 needs to be electrically connected to the second electrode of the second transistor 72 through a via hole; generally, the greater the depth of the via hole, the greater the difficulty in setting the via hole. At this time, a lap joint structure 80 can be set between the first electrode layer 23 and the second electrode of the first transistor 71, and between the electro-shading layer 21 and the second electrode of the second transistor 72. For example, a lap joint structure 80 can be set between the first electrode layer 23 and the second electrode of the first transistor 71, and between the electro-shading layer 21 and the second electrode of the second transistor 72. Two overlapping structures 81 and 82 are respectively set between the second pole of a transistor 71 and between the electro-shading layer 21 and the second pole of the second transistor 72, so that a hole is punched from the first electrode layer 23 to the overlapping structure 81, a hole is punched from the overlapping structure 81 to the overlapping structure 82, and a hole is punched from the overlapping structure 82 to the second pole of the first transistor 71, so as to split the via between the first electrode layer 23 and the second pole of the first transistor 71 into three vias, so that each via has a smaller depth to reduce the difficulty of drilling; similarly, the via between the electro-shading layer 21 and the second pole of the second transistor 72 can be split into three vias to reduce the difficulty of drilling.

[0080] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.11 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention, such as Fig.11 As shown, the display device 200 may include the display panel 100 provided in the embodiment of the present invention. The display device 200 may include but is not limited to a mobile phone, a notebook computer, a wearable device (such as a watch, a bracelet, etc.), and displays of other non-portable devices.

[0081] Since the display device provided by the embodiment of the present invention includes the display panel provided by any embodiment of the present invention, the display device provided by the embodiment of the present invention includes the corresponding functional modules of the display panel, which can achieve the beneficial effects of the display panel provided by the embodiment of the present invention. For technical details not described in detail in the above embodiment, please refer to the above description of the display panel provided by the embodiment of the present invention.

[0082] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: substrate substrate; A plurality of light emitting devices arranged in an array on one side of the substrate; the light emitting devices include a plurality of light emitting areas; The light-emitting area is provided with an electro-shading layer correspondingly; The electro-shading layer is used to control the luminous flux of the light emitted from the light-emitting area under the control of the electro-shading control signal; The color conversion layer includes a plurality of color conversion structures; the color conversion structures are located on the light-emitting side of the light-emitting device; at least part of the light emitted by the light-emitting device is emitted after passing through the color conversion structures.

2. The display panel according to claim 1, characterized in that: The electro-shading layer in the same light-emitting device comprises a plurality of electro-shading structures corresponding to different light-emitting areas respectively, and the electro-shading structures are insulated from each other.

3. The display panel according to claim 1, characterized in that: In the light emitting device, the value range of the first internal angle θ formed by the light emitting surfaces of two adjacent light emitting areas is: 90°<θ<180°; The first internal angle θ is the angle formed by two adjacent light emitting surfaces, which is the angle facing the substrate.

4. The display panel according to claim 1, characterized in that: The light emitting device further comprises a light emitting layer; the light emitting layers located in different light emitting regions are continuous and not coplanar.

5. The display panel according to claim 4, characterized in that: The electro-shading layer of each light-emitting device comprises a first electro-shading structure and a second electro-shading structure; the first electro-shading structure and the second electro-shading structure are respectively located in different light-emitting areas; The color conversion layer includes a first color conversion structure and a second color conversion structure; the first color conversion structure is located on a side of the first electro-shading structure away from the light-emitting layer; The second color conversion structure is located on a side of the second electro-shading structure away from the light-emitting layer; At least part of the light emitted by the light emitting device has a different wavelength from the light emitted after passing through the first color conversion structure and the light emitted after passing through the second color conversion structure.

6. The display panel according to claim 5, characterized in that: The electro-shading layer of each light-emitting device further includes a third electro-shading structure; the third electro-shading structure and the first electro-shading structure and the second electro-shading structure are all located in different light-emitting areas; The color conversion structure is not disposed on a side of the third electro-shading structure away from the light-emitting layer.

7. The display panel according to claim 6, characterized in that: The third electro-light-shielding structure is located between the first electro-light-shielding structure and the second electro-light-shielding structure.

8. The display panel according to claim 6, characterized in that: A surface of the third electro-shading structure on one side facing away from the light-emitting layer is flush with the light emitting surface of the color conversion structure.

9. The display panel according to claim 4, characterized in that: The angle between the light incident surface of the color conversion structure and the surface of the electro-shading layer in the light-emitting area corresponding to the color conversion structure, which is away from the light-emitting layer, is α; wherein 0°≤α≤10°; The second inner angle formed by the surface of the electro-shading layer on the side away from the light-emitting layer and the plane where the substrate is located The value range of is: The second interior angle It is the angle toward the light-emitting layer among the angles formed by the surface of the electro-shading structure on one side away from the light-emitting layer and the plane where the substrate is located.

10. The display panel according to claim 4, characterized in that: The electro-shielding layer comprises an electro-polymer layer and light-shielding particles arranged in the electro-polymer layer; The electropolymer layer is used to expand or contract under the control of an electro-control signal to control the distance between the light-shielding particles.

11. The display panel according to claim 10, characterized in that: A surface of the electropolymer layer close to the light-emitting layer is a first surface, and a surface of the electropolymer layer away from the light-emitting layer is a second surface; The light-shielding particles are located on a side close to the second surface.

12. The display panel according to claim 10, characterized in that: The light-shielding particles include inorganic nanoparticles with a reflective function.

13. The display panel according to claim 1, characterized in that: Also includes: A light-shielding flat layer is located on a side of the light-emitting device away from the substrate; the light-shielding flat layer comprises a plurality of first light-shielding flat structures corresponding to the light-emitting devices one by one; The first light-shielding planar structure includes at least one first opening; the first opening exposes the color conversion structure.

14. The display panel according to claim 13, characterized in that: The light emitting device comprises a light emitting layer; the electro-shading layer comprises a third electro-shading structure; the color conversion structure is not arranged on a side of the third electro-shading structure away from the light emitting layer; The first light-shielding planar structure further includes a second opening; the second opening exposes the third electro-light-shielding structure.

15. The display panel according to claim 13, characterized in that: The light-shielding planar layer further includes a plurality of light-blocking structures; the light-blocking structures are located between two adjacent light-emitting devices and / or between two adjacent first light-shielding planar structures.

16. The display panel according to claim 15, characterized in that: Also includes: A metal reflective wall; the metal reflective wall is located between the light blocking structure, the light emitting device and the first light shading flat structure.

17. The display panel according to claim 16, characterized in that: A surface of the metal reflective wall close to the light emitting device is a first reflective surface; From the direction from the substrate to the light emitting device, the distance between the first reflecting surface and the central axis of the light emitting device increases gradually; The central axis of the light emitting device is an axis perpendicular to the plane where the substrate is located.

18. The display panel according to claim 1, characterized in that: Also includes: Scattering layer; The light-shielding layer is located between the color conversion structure and the electro-shading layer.

19. The display panel according to claim 1, characterized in that: Also includes: A plurality of pixel circuits arranged in an array, located between the substrate and the light emitting device; The pixel circuit comprises a first transistor and at least one second transistor; The light emitting device further comprises a first electrode layer; A first electrode of the first transistor receives a driving signal, and a second electrode of the first transistor is electrically connected to a first electrode layer of the light emitting device; A first electrode of the second transistor receives the electro-optical control signal, and a second electrode of the second transistor is electrically connected to the electro-optical shading layer.

20. The display panel according to claim 1, characterized in that: In the light-emitting device, along the arrangement direction of each light-emitting area, a plurality of continuous light-emitting areas and the base substrate at the location of the light-emitting device are connected end to end in sequence to form a closed area.

21. A display device, characterized in that: include: The display panel according to any one of claims 1 to 20.

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