Display panel and display device

Abstract

The application discloses a display panel and a display device, and aims to solve the problem of single depth of field of a near-field display device. The display panel has a plurality of pixel regions arranged in an array. The display panel comprises a back plate, a plurality of light emitting devices located in the pixel regions, and a cover plate. The light emitting devices are located on one side of the back plate, and the cover plate is located on the side of the light emitting devices away from the back plate. A plurality of adjustable microlenses are located on the surface of the cover plate away from the back plate and correspond to the plurality of pixel regions one by one. The shape of the adjustable microlenses is variable, and different shapes correspond to different focal lengths.

Description

Technical Field

[0001] This invention relates to the field of near-field display technology, and more particularly to a display panel and display device. Background Technology

[0002] In near-field displays, users wearing near-field display devices can usually only view the screen at one viewing distance, resulting in a relatively uniform depth of field for the user. Summary of the Invention

[0003] This invention provides a display panel and display device to solve the problem of limited depth of field in near-field display devices.

[0004] In a first aspect, to solve the above-mentioned technical problems, embodiments of the present invention provide a display panel having a plurality of pixel areas arranged in an array, the display panel comprising:

[0005] A backplate, multiple light-emitting devices located within the pixel area, and a cover plate, wherein the light-emitting devices are located on one side of the backplate, and the cover plate is located on the side of the light-emitting devices away from the backplate;

[0006] Multiple adjustable microlenses are located on the side of the cover plate away from the back plate and correspond one-to-one with the multiple pixel areas. The shape of the adjustable microlenses is variable, and different shapes correspond to different focal lengths.

[0007] In one possible implementation, the display panel further includes:

[0008] Multiple flow guiding structures with multiple grids;

[0009] An elastic film is located on the side of the flow guiding structure away from the back plate and covers the plurality of pixel areas and the flow guiding structure. The surface of the flow guiding structure away from the back plate is tightly connected to the elastic film.

[0010] The liquid is contained within the flow guiding structure and within the enclosed space formed by the flow guiding structure, the cover plate, and the elastic membrane; the liquid in each grid constitutes an adjustable microlens, and the liquid inside the flow guiding structure is in communication with the liquid in each grid;

[0011] A micropump, connected to the interior of the flow guiding structure, changes the shape of the liquid contained within the grid by altering the pressure of the liquid contained within the flow guiding structure.

[0012] One possible implementation of the flow guiding structure includes:

[0013] A plurality of first guide channels extending along a first direction, the plurality of first guide channels being arranged along a second direction, the second direction intersecting the first direction;

[0014] A plurality of second guide channels extending along the second direction, the plurality of second guide channels being arranged along the first direction;

[0015] The plurality of first guide channels and the plurality of second guide channels are connected at their intersection points.

[0016] In one possible implementation, the flow guiding structure further includes:

[0017] The main flow channel is located on one side of the plurality of first flow channels and is parallel to the plurality of first flow channels. The plurality of second flow channels are connected at the intersection with the main flow channel. One end of the main flow channel is connected to the micro pump.

[0018] In one possible implementation, the width of the main flow channel is greater than the widths of the first flow channel and the second flow channel, and the length of the main flow channel is greater than the length of the first flow channel.

[0019] In one possible implementation, the width of the first and second guide channels closest to the micropump is greater than the width of the remaining first and second guide channels.

[0020] In one possible implementation, each grid corresponds to a connecting hole, which is located on the sidewall of a first or second flow channel corresponding to the grid. The connecting hole is used to connect the liquid in the grid with the liquid in the corresponding first or second flow channel.

[0021] The closer the grid is to the micropump, the farther the corresponding connecting hole of the grid is from the end of the grid that is closest to the micropump.

[0022] In one possible implementation, the elastic membrane is made of a material including polydimethylsiloxane.

[0023] In one possible implementation, the refractive index of the liquid is greater than 1.

[0024] In a second aspect, embodiments of the present invention provide a display device, including a display panel as described in the first aspect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0027] Figure 3 A top view of a display panel provided in an embodiment of the present invention;

[0028] Figures 4-6 This is a schematic diagram illustrating the adjustment of the focal length of an adjustable microlens according to an embodiment of the present invention.

[0029] Figure 7 An imaging schematic diagram of a display panel provided in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of images viewed at different focal lengths provided in an embodiment of the present invention;

[0031] Figure 9 The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention;

[0032] Figure 10 Provided for embodiments of the present invention Figure 9 Cross-sectional view along the AA' direction;

[0033] Figure 11 A schematic diagram of a flow guiding structure provided in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of another flow guiding structure provided in an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of another flow guiding structure provided in an embodiment of the present invention;

[0036] Figure 14 This is a schematic diagram of another flow guiding structure provided in an embodiment of the present invention.

[0037] Figure label:

[0038] Pixel area (PIX), backplate 1, light-emitting device 2, cover plate 3, adjustable microlens 4, flow guiding structure 5, grid s, elastic film 6, liquid 7, micropump 8, first direction Y, second direction X, first flow guiding groove 51, second flow guiding groove 52, main flow guiding groove 53, connecting hole H, substrate 11, buffer layer 12, active layer 13, first gate insulating layer 14, gate layer 15, second gate insulating layer 16, source-drain layer 17, planarization layer 18, first electrode layer 21, pixel boundary layer 22, light-emitting layer 23, second electrode layer 24, encapsulation layer 25. Detailed Implementation

[0039] This invention provides a display panel and display device to solve the problem of limited depth of field in near-field display devices.

[0040] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and therefore repeated descriptions of them will be omitted. Terms describing position and direction in the present invention are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of the present invention. The accompanying drawings of the present invention are for illustrative purposes only and do not represent actual proportions.

[0041] It should be noted that specific details are set forth in the following description to provide a full understanding of the invention. However, the invention can be practiced in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below. The following description is a preferred embodiment for carrying out the present application; however, the description is for the purpose of illustrating the general principles of the application and is not intended to limit the scope of the application. The scope of protection of this application shall be determined by the appended claims.

[0042] The following description, in conjunction with the accompanying drawings, details a display panel and display device provided in an embodiment of the present invention.

[0043] Please see Figure 1 This is a schematic diagram of a display panel provided in an embodiment of the present invention. The display panel has multiple pixel areas (PIX) arranged in an array. The display panel includes:

[0044] The back plate 1, multiple light-emitting devices 2 located in the pixel area PIX, and a cover plate 3, wherein the light-emitting devices 2 are located on one side of the back plate 1, and the cover plate 3 is located on the side of the light-emitting devices 2 away from the back plate 1.

[0045] Multiple adjustable microlenses 4 are located on the side of the cover plate 3 away from the back plate 1, and correspond one-to-one with multiple pixel areas (PIX). The shape of the adjustable microlenses 4 can be changed, and different shapes correspond to different focal lengths.

[0046] like Figure 1 As shown, one pixel area (PIX) corresponds to three light-emitting devices 2: red (R), green (G), and blue (B). Each tunable microlens 4 corresponds to one pixel area (PIX). The side of the tunable microlens 4 away from the backplate 1 can be... Figure 1 The convex surface shown by the solid arc can also be Figure 1 The plane represented by the dashed line can also be Figure 1The concave surface is shown by the dashed arc. The shape of the adjustable microlens 4 can be changed by altering the side of the adjustable microlens 4 away from the back plate 1, so that the adjustable microlens 4 has different focal lengths in different shapes.

[0047] In the embodiments provided by the present invention, by setting a plurality of adjustable microlenses 4 corresponding one-to-one with a plurality of pixel areas PIX on the side surface of the back plate 1 away from the light-emitting device 2 and the back plate 1, and by making the shape of the adjustable microlenses 4 variable so that different shapes correspond to different focal lengths, the display panel has the function of automatically adjusting the focal length. When the display panel is applied to a near-field display device, the near-field focal length can be adjusted so that users can view images with different depths of field.

[0048] Please see Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. Figure 3 This is a top view of a display panel provided in an embodiment of the present invention.

[0049] The display panel also includes:

[0050] Multiple flow guiding structures 5, each with multiple grids s;

[0051] The elastic film 6 is located on the side of the flow guiding structure 5 away from the back plate 1 and covers multiple pixel areas PIX and the flow guiding structure 5. The surface of the flow guiding structure 5 away from the back plate 1 is tightly connected to the elastic film 6.

[0052] Liquid 7 is contained inside the flow guiding structure 5 and within the closed space enclosed by the flow guiding structure 5, the cover plate 3, and the elastic membrane 6; the liquid 7 in each grid s constitutes an adjustable microlens 4, and the liquid 7 inside the flow guiding structure 5 is in communication with the liquid 7 in each grid s.

[0053] The micropump 8 is connected to the inside of the flow guiding structure 5. The micropump 8 changes the shape of the liquid 7 contained in the grid s by changing the pressure of the liquid 7 contained in the flow guiding structure 5.

[0054] In the embodiments provided by the present invention, since the same flow guiding structure 5 is connected to the same micropump 8, the focal length of the adjustable microlens 4 corresponding to the same flow guiding structure 8 can be regarded as the same.

[0055] In some embodiments, the focal lengths of the adjustable microlenses 4 corresponding to the plurality of flow guiding structures 5 in the display panel may be the same or different.

[0056] For example, the same control is applied to the micropump 8 connected to each flow guiding structure 5 so that the focal length of the adjustable microlens 4 corresponding to each flow guiding structure 5 is the same.

[0057] For example, different controls can be applied to the micropumps 8 connected to the flow guiding structure 5 in different areas of the display panel, so that the focal length of the adjustable microlens 4 corresponding to the flow guiding structure 5 in different areas is different.

[0058] Please see Figures 4-6 This is a schematic diagram illustrating how the adjustable microlens 4 changes its focal length, as provided in an embodiment of the present invention.

[0059] The focal length (denoted as f) of the adjustable microlens 4 can be expressed by the following formula:

[0060] f = R v / (1-n E )+(n L -n E ) / R v / R f ;

[0061] Among them, R v R is the target radius of curvature of elastic membrane 6. f Let n be the radius of curvature of elastic membrane 6. E The refractive index of elastic membrane 6, n L Let be the refractive index of liquid 7.

[0062] When the elastic membrane 6 undergoes continuous deformation, the target radius of curvature R of the elastic membrane 6 is... v There is a decreasing trend, so the focal length of the adjustable microlens 4 also tends to decrease. Typically, as the hydraulic pressure of the liquid 7 increases, the focal length of the adjustable microlens 4 increases until it reaches its maximum value.

[0063] Figure 3 The closed space corresponding to the grid s in the diagram (which can be called a microlens chamber) is from... Figure 2 As can be seen, cover plate 3 serves as the bottom surface of the microlens chamber, flow guiding structure 5 serves as the side wall of the microlens chamber, and elastic membrane 6 serves as the top surface of the microlens chamber. Since the liquid 7 in flow guiding structure 5 is connected to the microlens chamber, such as... Figure 4 As shown, when the liquid 7 in the flow guiding structure 5 is pressurized by the micropump 8, the liquid 7 in the flow guiding structure 5 can be pumped into the microlens chamber, causing the elastic membrane 6 to undergo elastic deformation away from the back plate 1. This increases the volume of the liquid 7 in the microlens chamber, thereby changing the shape of the microlens chamber. Consequently, the shape of the liquid 7 contained within the microlens chamber also changes, and the focal length of the adjustable microlens formed by the liquid 7 in the microlens chamber also changes accordingly. Figure 5As shown, when the micropump 8 depressurizes the liquid 7 in the flow guiding structure 5, the liquid 7 in the flow guiding structure 5 can be pumped out of the microlens chamber, causing the elastic membrane 6 to undergo elastic deformation near the back plate 1. This reduces the volume of the liquid 7 in the microlens chamber, thereby changing the shape of the microlens chamber. Consequently, the shape of the liquid 7 contained within the microlens chamber also changes, and the focal length of the adjustable microlens formed by the liquid 7 in the microlens chamber also changes. Figure 6 As shown, when the micropump 8 is not pressurized (i.e., the micropump 8 is in the release state, neither pressurized nor depressurized), the elastic membrane 6 does not undergo elastic deformation, and the side of the adjustable microlens 4 away from the back plate 1 is flat.

[0064] Please see Figure 7 This is a schematic diagram of an imaging display panel provided in an embodiment of the present invention. When a user views an image displayed on the display panel from the light-emitting side of the display panel, if the focal length of the adjustable microlens 4 is focal length 1, the image viewed by the user is a virtual image 1; if the focal length of the adjustable microlens 4 is focal length 2, the image viewed by the user is a virtual image 2. Here, focal length 1 is less than focal length 2, and the user sees different depths of field at different focal lengths, resulting in different levels of clarity at different depths of field.

[0065] Please see Figure 8 These are schematic diagrams of images viewed at different focal lengths, provided in embodiments of the present invention. Figure 8 The images shown are viewed from the same distance. The left image has a shorter focal length than the right image, making the right image clearer.

[0066] Under different pixel structures, the exposure devices contained in the pixel area (PIX) are different, such as Figure 9 The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention. Figure 9 A pixel area PIX includes 4 sub-pixels corresponding to 4 light-emitting devices 2, corresponding to the light-emitting devices 2 of three colors: R, G, and B, of which there are 2 light-emitting devices 2 of color G.

[0067] Please see Figure 10 Provided for embodiments of the present invention Figure 9 Cross-sectional view in the AA' direction.

[0068] exist Figure 10 The diagram shows a schematic representation of the structure of the backplate 1 and the film layer containing the light-emitting device 2 (hereinafter referred to as the light-emitting device 2 layer). Figure 10The backplane 1 includes a substrate 11, a buffer layer 12 located on one side of the substrate 11, an active layer 13 located on the side of the buffer layer 12 away from the substrate 11, a first gate insulating layer 14 located on the side of the active layer 13 away from the substrate 11, a gate layer 15 located on the side of the first gate insulating layer 14 away from the substrate 11, a second gate insulating layer 16 located on the side of the gate layer 15 away from the substrate 11, a source-drain layer 17 located on the side of the second gate insulating layer 16 away from the substrate 11, and a planarization layer 18 located on the side of the source-drain layer 17 away from the substrate 11. The gate of a thin-film transistor and a gate line connected thereto are disposed in the gate layer 15, and the source and drain of the thin-film transistor and a data line connected to the thin-film transistor are disposed in the source-drain layer 17.

[0069] The light-emitting device 2 layer includes: a first electrode layer 21 located on the side of the planarization layer 18 away from the substrate 11; a pixel defining layer 22 located on the side of the first electrode layer 21 away from the substrate 11; a light-emitting layer 23 located on the side of the pixel defining layer 22 away from the substrate 11; a second electrode layer 24 located on the side of the light-emitting layer 23 away from the substrate 11; and an encapsulation layer 25 located on the side of the second electrode layer 24 away from the substrate 11. A cover plate 3 is located on the surface of the encapsulation layer 25 away from the substrate 11. The first electrode layer 21 can be an anode layer, including an anode corresponding to each light-emitting device 2, and the corresponding second electrode layer 24 can be a cathode covering an entire surface; or, the first electrode layer 21 can be a cathode covering an entire surface, and the second electrode layer 24 can be an anode layer, including an anode corresponding to each light-emitting device 2.

[0070] In some embodiments, the second electrode layer 24 may be a transparent electrode, and the first electrode layer 21 may be a non-transparent electrode.

[0071] In the embodiments provided by the present invention, a flow guiding structure 5 with multiple grids s is provided on the surface of the cover plate 3 away from the back plate 1, and an elastic membrane 6 is provided on the side of the flow guiding structure 5 away from the back plate 1, so that the cover plate 3, the grids s of the flow guiding structure 5 and the elastic membrane 6 form a closed space, and liquid 7 is filled in this closed space and inside the flow guiding structure 5. The liquid 7 in the closed space is in communication with the liquid 7 in the flow guiding structure 5. At the same time, a micro pump 8 connected to the flow guiding structure 5 is also provided. The pressure of the liquid 7 is changed by the micro pump 8 to change the shape of the liquid 7 contained in the closed space, thereby changing the focal length of the adjustable microlens 4 formed by the liquid 7 in the closed space.

[0072] In some embodiments, the refractive index of liquid 7 is greater than 1. For example, liquid 7 can be water.

[0073] In some embodiments, the elastic membrane 6 is a transparent elastic membrane 6, and the refractive index of the elastic membrane 6 is greater than or equal to the refractive index of the liquid 7.

[0074] In other embodiments, the elastic membrane 6 is made of a material including polydimethylsiloxane (PDMS).

[0075] Please see Figure 11 This is a schematic diagram of a flow guiding structure 5 provided in an embodiment of the present invention. The flow guiding structure 5 includes:

[0076] Multiple first guide channels 51 extending along the first direction Y, and the multiple first guide channels 51 arranged along the second direction X, the second direction X intersecting the first direction Y;

[0077] A plurality of second guide channels 52 extending along the second direction X, and the plurality of second guide channels 52 arranged along the first direction Y;

[0078] Multiple first guide channels 51 and multiple second guide channels 52 are connected at their intersections.

[0079] In the embodiments provided by the present invention, by arranging a plurality of first guide channels 51 extending along the first direction Y along the second direction X, and arranging a plurality of second guide channels 52 extending along the second direction X along the first direction Y, the plurality of first guide channels 51 and the plurality of second guide channels 52 are connected at the intersection position, and a guide structure 5 with a plurality of grids s can be formed.

[0080] Please see Figure 12 This is a schematic diagram of another flow guiding structure 5 provided in an embodiment of the present invention. The flow guiding structure 5 further includes:

[0081] The main flow channel 53 is located on one side of the multiple first flow channels 51 and is parallel to the multiple first flow channels 51. The multiple second flow channels 52 are connected at the intersection with the main flow channel 53. One end of the main flow channel 53 is connected to the micro pump 8.

[0082] In the embodiments provided by the present invention, by arranging the main flow channel 53 in parallel on one side of the plurality of first flow channels 51, the pressure of the liquid 7 in the plurality of first flow channels 51 and the plurality of second flow channels 52 can be roughly balanced.

[0083] Please continue reading Figure 12 The width w1 of the main flow channel 53 is greater than the width w2 of the first flow channel 51 and the second flow channel 52, and the length L' of the main flow channel 53 is greater than the length L of the first flow channel 51.

[0084] In the embodiments provided by the present invention, by setting the width w1 of the main flow channel 53 to be greater than the width w2 of the first flow channel 51 and the second flow channel 52, the flow rate of liquid 7 diverted from the main flow channel 53 to each of the first flow channels 51 and the second flow channels 52 can be balanced; and by setting the length L' of the main flow channel 53 to be greater than the length L of the first flow channel 51, it is convenient to connect the micro pump 8.

[0085] Please see Figure 13 This is a schematic diagram of another flow guiding structure 5 provided in an embodiment of the present invention. In this flow guiding structure 5, the width of the first flow guiding groove 51 and the second flow guiding groove 52 closest to the micropump 8 is greater than the width of the other first flow guiding grooves 51 and second flow guiding grooves 52.

[0086] like Figure 13 As shown, the second guide channel arranged at the end in the first direction Y is the second guide channel 52 closest to the micro pump 8 among the four second guide channels 52, and its width w3 is greater than the width w2 of the other second guide channels 52; the first guide channel 51 arranged at the beginning in the second direction X is the first guide channel 51 closest to the micro pump 8 among the four first guide channels 51, and its width w3 is greater than the width w2 of the other first guide channels 51.

[0087] In the embodiments provided by the present invention, by setting the width of the first guide channel 51 and the second guide channel 52 closest to the micro pump 8 in the guide structure 5 to be greater than the width of the other first guide channels 51 and the second guide channel 52, the flow rate of liquid 7 diverted from the first guide channel 51 and the second guide channel 52 closest to the micro pump 8 to the other first guide channels 51 and the second guide channel 52 can be more balanced.

[0088] Please see Figure 14 This is a schematic diagram of another flow guiding structure 5 provided in an embodiment of the present invention. In this flow guiding structure 5, each grid s corresponds to a connecting hole H. The connecting hole H is located on the side wall of a first flow guiding channel 51 or a second flow guiding channel 52 corresponding to the grid s. The connecting hole H is used to connect the liquid 7 in the grid s with the liquid 7 in the corresponding first flow guiding channel 51 or second flow guiding channel 52.

[0089] The closer the grid s is to the micropump 8, the farther the corresponding connecting hole H of the grid s is from the end of the grid s that is closest to the micropump 8.

[0090] like Figure 14As shown, taking the grid s1 closest to the micropump 8 and the grid s2 farthest from the micropump 8 as examples, the a-end of grid s1 is closest to the micropump 8, and the a-end of grid s2 is also closest to the micropump 8. Since grid ss1 is closest to the micropump 8 relative to other grids s, the connecting hole H corresponding to grid s1 is set at the position farthest from the a-end of grid s1 in grid ss1; since grid s2 is farthest from the micropump 8 relative to other grids s, the connecting hole H corresponding to grid s2 is set at the position closest to the a-end of grid s2 in grid s2.

[0091] In the embodiments provided by the present invention, by setting the connecting hole H corresponding to the grid s that is closer to the micropump 8 in the flow guiding structure 5 to be farther away from the end of the grid s closest to the micropump 8, the difference in pumping out or pumping in pressure of liquid 7 in each grid s can be reduced when the micropump 8 applies pressure to the liquid 7 in the flow guiding structure 5, thereby making the focal length of the adjustable microlens 4 corresponding to each grid s approximately the same.

[0092] Based on the same inventive concept, embodiments of the present invention provide a display device, which includes a display panel as described above.

[0093] The display device can be a wearable electroluminescent display, electroluminescent screen, or other similar device.

[0094] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0095] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A display panel having a plurality of pixel regions arranged in an array, characterized by, The display panel comprises: a back plate, a plurality of light emitting devices located in the pixel area, and a cover plate, the light emitting devices being located on one side of the back plate, and the cover plate being located on the side of the light emitting devices away from the back plate; a plurality of adjustable microlenses located on the surface of the cover plate away from the back plate and corresponding to the plurality of pixel areas, the shape of the adjustable microlenses being variable, and different shapes corresponding to different focal lengths; a plurality of flow guide structures having a plurality of grids; an elastic film located on the side of the flow guide structure away from the back plate and covering the plurality of pixel areas and the flow guide structure, the surface of the side of the flow guide structure away from the back plate being tightly connected with the elastic film; a liquid contained in the flow guide structure and the enclosed space formed by the flow guide structure, the cover plate and the elastic film, the liquid in each grid constituting an adjustable microlens, and the liquid in the flow guide structure being in communication with the liquid in each grid; a micropump in communication with the flow guide structure, the micropump changing the shape of the liquid contained in the grid by changing the pressure of the liquid contained in the flow guide structure.

2. The display panel of claim 1, wherein, The flow guide structure comprises: a plurality of first flow guide grooves extending in a first direction, the plurality of first flow guide grooves being arranged in a second direction intersecting the first direction; a plurality of second flow guide grooves extending in the second direction, the plurality of second flow guide grooves being arranged in the first direction; the plurality of first flow guide grooves and the plurality of second flow guide grooves being in communication at the intersection positions.

3. The display panel of claim 2, wherein, The flow guide structure further comprises: a main flow guide groove located on one side of the plurality of first flow guide grooves and parallel to the plurality of first flow guide grooves, the plurality of second flow guide grooves being in communication at the intersection positions with the main flow guide groove, and one end of the main flow guide groove being in communication with the micropump.

4. The display panel of claim 3, wherein, The width of the main flow guide groove is greater than the width of the first flow guide grooves and the second flow guide grooves, and the length of the main flow guide groove is greater than the length of the first flow guide grooves.

5. The display panel of claim 2, wherein, The width of the first flow guide groove and the second flow guide groove closest to the micropump is greater than the width of the remaining first flow guide grooves and second flow guide grooves.

6. The display panel of any one of claims 2-5, wherein, Each grid corresponds to a communication hole located on the side wall of the corresponding first flow guide groove or second flow guide groove, the communication hole being used for communicating the liquid in the grid with the liquid in the corresponding first flow guide groove or second flow guide groove; The closer the grid is to the micropump, the farther the communication hole corresponding to the grid is from the end of the grid closest to the micropump.

7. The display panel of any one of claims 1-5, wherein, The material of the elastic film comprises polydimethylsiloxane.

8. The display panel of any one of claims 1-5, wherein, The refractive index of the liquid is greater than 1.

9. A display device comprising: The display panel comprises any one of claims 1-8.

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