Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a driving backboard, a pixel definition layer, a plurality of light emitting devices and a plurality of optical structures. The optical structures are located on the light emitting sides of the light emitting devices and correspond to the light emitting devices, and orthographic projections of the optical structures on the driving backboard are overlapped with orthographic projections of the corresponding light emitting devices on the driving backboard. And the optical structure can converge reflected light formed by irradiating the display panel by the point light source in a dark state. The plurality of light-emitting devices are divided into a plurality of pixel groups, and for two different light-emitting devices emitting light with the same color in the same pixel group, the light converging capacities of two optical structures corresponding to the two light-emitting devices are different. Therefore, in a dark state, the intensity distribution of the diffracted light formed when the reflected light formed by irradiating the display panel by the point light source passes through the light through hole is different, so that the visual effect of the display panel in the dark state can be improved.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] An organic light-emitting diode (OLED) is a current-driven organic light-emitting device. OLED display panels have advantages such as small thickness, self-luminescence, bendability, and the ability to be fabricated on flexible substrates, and thus are widely used in the display field.

[0003] In related technologies, an OLED display panel generally includes: a driving backplane, a black matrix layer, a color filter layer, and multiple light-emitting devices. The multiple light-emitting devices can be located on the same side of the driving backplane, and the black matrix layer and the color filter layer can be located on the light-emitting side of the multiple light-emitting devices. The black matrix layer has multiple light-passing holes, and the light emitted by the light-emitting devices can pass through the light-passing holes and the color filter layer and then be emitted, so that the OLED display panel can display an image.

[0004] However, in a dark state such as the screen-off state, when a point light source irradiates the OLED display panel, the reflected light formed by the light of the point light source inside the panel will diffract when passing through the light-passing holes, and there will be obvious stripe patterns and color separation after the light is mixed and superimposed finally, resulting in a poor visual effect of the OLED display panel in the dark state. Summary of the Invention

[0005] This application provides a display panel and a display device, which can solve the problem of poor visual effect of the OLED display panel in the related technologies in the dark state. The technical solutions are as follows:

[0006] On the one hand, a display panel is provided, including: a driving backplane, a pixel definition layer, multiple light-emitting devices, and multiple optical structures;

[0007] The pixel definition layer is located on one side of the driving backplane, and the pixel definition layer has multiple pixel apertures;

[0008] The multiple light-emitting devices correspond to the multiple pixel apertures, at least part of the light-emitting devices are located in the corresponding pixel apertures, and the light-emitting devices are electrically connected to the driving backplane;

[0009] The multiple optical structures are located on the light-emitting side of the multiple light-emitting devices, and the multiple optical structures correspond to the multiple light-emitting devices. The orthographic projection of the optical structure on the driving backplane overlaps with the orthographic projection of the corresponding light-emitting device on the driving backplane;

[0010] Among them, the multiple light-emitting devices are divided into multiple pixel groups. The light-emitting device arrays in one pixel group are arranged in at least two rows and at least two columns, and the number of light-emitting devices for emitting light of the same color in the same pixel group is at least two; for two different light-emitting devices that emit light of the same color in the same pixel group, the light-gathering capabilities of the two optical structures corresponding to the two light-emitting devices are different.

[0011] Optionally, for two different light-emitting devices that emit light of the same color in the same pixel group, the heights of the two optical structures corresponding to the two light-emitting devices are different, and / or the areas of the positive projections of the two optical structures corresponding to the two light-emitting devices on the driving backplane are different.

[0012] Optionally, the multiple light-emitting devices include: multiple first-type light-emitting devices, multiple second-type light-emitting devices, and multiple third-type light-emitting devices; the colors of the light emitted by different types of light-emitting devices are different;

[0013] The optical structure corresponding to the first-type light-emitting device is the first optical structure, the optical structure corresponding to the second-type light-emitting device is the second optical structure, and the optical structure corresponding to the third-type light-emitting device is the third optical structure;

[0014] The type quantity m1 of the multiple first optical structures is greater than or equal to the type quantity m3 of the multiple third optical structures, and the type quantity m2 of the multiple second optical structures is greater than or equal to the type quantity m3 of the multiple third optical structures; m1, m2, and m3 are all positive integers greater than or equal to 1;

[0015] Among them, the light-gathering capabilities of the same type of first optical structure for light are the same, the light-gathering capabilities of the same type of second optical structure for light are the same, and the light-gathering capabilities of the same type of third optical structure for light are the same.

[0016] Optionally, in the same pixel group, the number of the first-type optical devices is equal to the number of the third-type optical devices, and the number of the second-type optical devices is equal to 2 times the number of the first-type optical devices;

[0017] Among them, in the case of m1 = m2 = m3, m1, m2, and m3 are all positive integers greater than or equal to 2; within the same pixel group, the number of the first-type optical devices is equal to m1;

[0018] Or, in the case of m1 > m3 and / or m2 > m3, m1 and / or m2 are positive integers greater than or equal to 2, and m3 is a positive integer greater than or equal to 1; within the same pixel group, the number of the first-type optical devices is: the least common multiple of m1, m2, m3, and 2.

[0019] Optionally, the plurality of light-emitting devices are arranged in multiple columns along a first direction and in multiple rows along a second direction;

[0020] For two adjacent columns of light-emitting devices, each of the light-emitting devices in one column is a second type of light-emitting device, and one column of light-emitting devices includes a plurality of the first type of light-emitting devices and a plurality of the third type of light-emitting devices arranged alternately; for two adjacent rows of the light-emitting devices, each of the light-emitting devices in one row is a second type of light-emitting device, and one row of light-emitting devices includes a plurality of the first type of light-emitting devices and a plurality of the third type of light-emitting devices arranged alternately.

[0021] Optionally, when m1 = m2 = m3, in the same pixel group, for two adjacent second type of light-emitting devices in the first direction, the types of the two second optical structures corresponding thereto are different, and / or for two adjacent second type of light-emitting devices in the second direction, the types of the two second optical structures corresponding thereto are different.

[0022] Optionally, in the same pixel group, the number of the first type of optical devices is equal to the number of the second type of optical devices and is equal to the number of the third type of optical devices;

[0023] Wherein, when m1 = m2 = m3, m1, m2 and m3 are all positive integers greater than or equal to 2; within the same pixel group, the number of the first type of optical devices is equal to m1;

[0024] Alternatively, when m1 > m3 and / or m2 > m3, m1 and / or m2 are positive integers greater than or equal to 2, and m3 is a positive integer greater than or equal to 1; within the same pixel group, the number of the first type of optical devices is: the least common multiple of m1, m2 and m3.

[0025] Optionally, the plurality of light-emitting devices are arranged in multiple columns along a first direction and in multiple rows along a second direction;

[0026] For two adjacent columns of light-emitting devices, each of the light-emitting devices in one column is a third type of light-emitting device, and one column of light-emitting devices includes a plurality of the first type of light-emitting devices and a plurality of the second type of light-emitting devices arranged alternately; for any row of the light-emitting devices, each of the light-emitting devices in one row is the first type of light-emitting device, the second type of light-emitting device or the third type of light-emitting device.

[0027] Optionally, the color of the light emitted by the first type of light-emitting device is red, the color of the light emitted by the second type of light-emitting device is green, and the color of the light emitted by the third type of light-emitting device is blue.

[0028] Optionally, the display panel further includes: a black matrix layer, a color filter layer, and an adhesive layer;

[0029] The black matrix layer is located on a side of the pixel definition layer facing away from the driving backplane. The black matrix layer has a plurality of light-passing holes, and the plurality of light-passing holes correspond to the plurality of pixel apertures. A positive projection of the pixel aperture on the driving backplane is located within a positive projection of the corresponding light-passing hole on the driving backplane;

[0030] The color filter layer includes a plurality of color filter blocks, and the plurality of color filter blocks correspond to the plurality of light-passing holes and correspond to the plurality of optical structures; the color filter blocks and the corresponding optical structures are stacked in a direction perpendicular to the driving backplane; a positive projection of the light-passing hole on the driving backplane is located within a positive projection of the corresponding color filter block on the driving backplane;

[0031] The adhesive layer is located on a side of the plurality of optical structures facing away from the driving backplane, and the adhesive layer is in direct contact with the plurality of optical structures;

[0032] Wherein, a refractive index of the optical structure is greater than a refractive index of the adhesive layer.

[0033] Optionally, the optical structure is located on a side of the corresponding color filter block facing away from the driving backplane;

[0034] Wherein, at least a part of the color filter block is located within the corresponding light-passing hole.

[0035] Optionally, the plurality of light-emitting devices includes: a plurality of first-type light-emitting devices, a plurality of second-type light-emitting devices, and a plurality of third-type light-emitting devices;

[0036] Wherein, a positive projection of a third light-passing hole corresponding to the third-type light-emitting device on the driving backplane is located within a positive projection of a third optical structure corresponding to the third-type light-emitting device on the driving backplane, and an area of the positive projection of the third optical structure on the driving backplane is greater than an area of the positive projection of the third light-passing hole on the driving backplane;

[0037] And / or, the orthographic projection of the first optical structure corresponding to the first type of light-emitting device on the driving backplane is located within the orthographic projection of the first light-transmitting hole corresponding to the first type of light-emitting device on the driving backplane, and the area of the orthographic projection of the first optical structure on the driving backplane is smaller than the area of the orthographic projection of the first light-transmitting hole on the driving backplane; the orthographic projection of the second optical structure corresponding to the second type of light-emitting device on the driving backplane is located within the orthographic projection of the second light-transmitting hole corresponding to the second type of light-emitting device on the driving backplane, and the area of the orthographic projection of the second optical structure on the driving backplane is smaller than the area of the orthographic projection of the second light-transmitting hole on the driving backplane.

[0038] Optionally, at least a part of the optical structure is located within the light-transmitting hole, and the plurality of filter blocks are located on the side of the adhesive layer away from the driving backplane.

[0039] Optionally, the plurality of optical structures are all plano-convex lenses, and the surface of the plano-convex lens facing away from the corresponding light-emitting device is a convex arc surface;

[0040] Or, the surface of the optical structure facing away from the driving backplane is parallel to the driving backplane, and the included angle between the side surface of the optical structure and the surface of the optical structure facing the driving backplane is an acute angle.

[0041] On the other hand, a display device is further provided, including a driving chip and the display panel described in any one of the above, and the driving chip is electrically connected to the display panel.

[0042] The beneficial effects brought by the technical solution provided by this application at least include:

[0043] When the plurality of optical structures are located on the light-emitting sides of the plurality of light-emitting devices, the optical structures can converge the light emitted by the light-emitting devices, thereby improving the brightness of the display surface. At the same time, the optical structures can also converge the reflected light formed by the point light source irradiating the display panel in the dark state. For two different light-emitting devices emitting the same color light in the same pixel group, the light-converging capabilities of the two optical structures corresponding to the two light-emitting devices are different. In this way, even if the sizes of the light-transmitting holes corresponding to the two different light-emitting devices emitting the same color light are the same, the intensity distribution of the diffracted light formed when the reflected light formed by the point light source irradiating the display panel in the dark state passes through the light-transmitting holes is also different. Then, the stripe sense of the diffracted pattern formed after the final light mixing and superposition is weak, and color separation can be effectively improved, thereby improving the visual effect of the display panel in the dark state. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0045] Figure 1 is a schematic diagram of the film layer structure of an OLED display panel provided by the related art;

[0046] Figure 2 is a schematic diagram of the film layer structure of a display panel provided by an embodiment of the present application;

[0047] Figure 3 is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0048] Figure 4 is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0049] Figure 5 is an arrangement diagram of multiple light-emitting devices provided by an embodiment of the present application;

[0050] Figure 6 is an arrangement diagram of another multiple light-emitting devices provided by an embodiment of the present application;

[0051] Figure 7 is an arrangement diagram of another multiple light-emitting devices provided by an embodiment of the present application;

[0052] Figure 8 is an arrangement diagram of another multiple light-emitting devices provided by an embodiment of the present application;

[0053] Figure 9 is an arrangement diagram of another multiple light-emitting devices provided by an embodiment of the present application;

[0054] Figure 10 is an arrangement diagram of another multiple light-emitting devices provided by an embodiment of the present application;

[0055] Figure 11 is a schematic diagram of a diffraction pattern and the superposition of diffraction patterns provided by an embodiment of the present application;

[0056] Figure 12 is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0057] Figure 13 is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0058] Figure 14It is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0059] Figure 15 It is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0060] Figure 16 It is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0061] Figure 17 It is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application;

[0062] Figure 18 It is a schematic diagram of the film layer structure of another display panel provided by an embodiment of the present application. Detailed implementation manners

[0063] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0064] Please refer to Figure 1 , an OLED display panel in the related art may include: a driving backplane 01, a plurality of light-emitting devices 02, a black matrix layer 03, and a color filter layer 04.

[0065] The plurality of light-emitting devices 02 are all located on the same side of the driving backplane 01, and the plurality of light-emitting devices 02 can all be electrically connected to the driving backplane 01, so that the driving backplane 01 can drive the plurality of light-emitting devices 02 to emit light.

[0066] The black matrix layer 03 can be located on the side of the plurality of light-emitting devices 02 away from the driving backplane 01. The black matrix layer 03 can have a plurality of light-transmitting holes 031. The plurality of light-transmitting holes 031 can correspond to the plurality of light-emitting devices 02, and the orthographic projection of the light-transmitting holes 031 on the driving backplane 01 can intersect with the orthographic projection of the corresponding light-emitting devices 02 on the driving backplane 01. In this way, the light emitted by the light-emitting devices 02 can be emitted through the corresponding light-transmitting holes 031.

[0067] The color filter layer 04 can include a plurality of filter blocks 041. The plurality of filter blocks 041 can correspond to the plurality of light-emitting devices 02, and at least part of the filter blocks 041 can be located in the light-transmitting holes 031. In this way, the light emitted by the light-emitting devices 02 can be emitted through the corresponding light-transmitting holes 031 and the corresponding filter blocks 041.

[0068] It should be noted that multiple light-emitting devices 02 can be divided into multiple red light-emitting devices, multiple green light-emitting devices, and multiple blue light-emitting devices according to the color of the emitted light. Multiple filter blocks 041 can also be divided into multiple red filter blocks, multiple green filter blocks, and multiple blue filter blocks. Multiple red light-emitting devices can correspond to multiple red filter blocks, multiple green light-emitting devices can correspond to multiple green filter blocks, and multiple blue light-emitting devices can correspond to multiple blue filter blocks. Then the light emitted by the red light-emitting devices can be emitted through the corresponding red filter blocks, the light emitted by the green light-emitting devices can be emitted through the corresponding green filter blocks, and the light emitted by the blue light-emitting devices can be emitted through the corresponding blue filter blocks, so that the color of the light can be made purer, thereby improving the color gamut of the OLED display panel.

[0069] When the OLED display panel is in the dark state, such as the screen-off state, and a point light source is used to irradiate the OLED display panel, the light of the point light source will enter the interior of the OLED display panel through multiple light-transmitting holes 031 and multiple filter blocks 041. After being filtered by different filter blocks 041, light of different colors will be obtained. These lights will be reflected by the electrodes in the light-emitting devices 02 to form reflected light. When the reflected light exits through the light-transmitting holes 031, diffraction will occur, forming a diffraction pattern with alternating bright and dark fringes.

[0070] Since the sizes of the light-transmitting holes 031 corresponding to the light-emitting devices 02 that emit the same color of light are the same, the intensity distributions of the diffracted light generated when the reflected light formed by the light entering the panel interior through the same color of filter blocks 041 exits through the light-transmitting holes 031 are also the same. Then, after the diffracted light of the same color is superimposed, a more obvious diffraction pattern with alternating bright and dark fringes will be formed, and when the diffracted light of different colors is mixed and superimposed, a color separation phenomenon will occur, which will ultimately result in a poor visual effect of the OLED display panel in the dark state.

[0071] The embodiment of the present application provides a display panel that can solve the above problems. Please refer to Figure 2 The display panel 000 may include a driving backplane 100, a pixel definition layer 200, multiple light-emitting devices 300, and multiple optical structures 400.

[0072] The pixel definition layer 200 may be located on one side of the driving backplane 100, and the pixel definition layer 200 may have multiple pixel openings U.

[0073] Multiple light-emitting devices 300 may correspond to multiple pixel openings U, and at least part of the light-emitting devices 300 may be located within the corresponding pixel openings U. Multiple light-emitting devices 300 are all electrically connected to the driving backplane 100, so that the driving backplane 100 can drive multiple light-emitting devices 300 to emit light.

[0074] The light-emitting device 300 may include: a first electrode, a light-emitting layer, and a second electrode that are stacked in a direction away from the driving backplane 100. Among them, the first electrode may be an anode, and the second electrode may be a cathode. A plurality of first electrodes in the plurality of light-emitting devices 300 can be electrically connected to the driving backplane 100, and a plurality of second electrodes in the plurality of light-emitting devices 300 can be electrically connected to each other. When the driving backplane 100 applies a corresponding voltage to the first electrode, an electric field will be formed between the first electrode and the second electrode, and the light-emitting layer located between the first electrode and the second electrode can emit light, so that the display panel 000 can display an image.

[0075] It should be noted that the display panel 000 may further include a black matrix layer 500 and a color filter layer 600. The black matrix layer 500 and the color filter layer 600 can both be located on the light-emitting side of the plurality of light-emitting devices 300, and the color filter layer 600 can be located on the side of the black matrix layer 500 away from the driving backplane 100. The black matrix layer 500 may have a plurality of light-transmitting holes 501, and the plurality of light-transmitting holes 501 can correspond to the plurality of light-emitting devices 300. The color filter layer 600 may have a plurality of light-filtering blocks 601, and the plurality of light-filtering blocks 601 can also correspond to the plurality of light-emitting devices 300. In this way, the light emitted by the light-emitting device 300 can be emitted through the corresponding light-transmitting hole 501 and the corresponding light-filtering block 601.

[0076] It should also be noted that in the dark state, such as the screen-off state, when the display panel 000 is irradiated with a point light source, the light of the point light source will be reflected by the electrodes in the light-emitting device 300 to form reflected light after entering the display panel 000, and the reflected light will diffract when passing through the light-transmitting hole 501. Since the sizes of the light-transmitting holes 501 corresponding to the light-emitting devices 300 emitting the same color light are the same, and the intensity distributions of the diffracted light generated by the light-transmitting holes 501 of the same size are also the same, the finally emitted reflected lights will be mixed and superimposed to form obvious alternating bright and dark fringes and a color separation phenomenon.

[0077] For this reason, the display panel 000 provided in the embodiment of the present application is provided with a plurality of optical structures 400. The plurality of optical structures 400 can be located on the light-emitting side of the plurality of light-emitting devices 300, and the plurality of optical structures 400 can be located on the side of the filter layer 600 away from the plurality of light-emitting devices 300. The plurality of optical structures 400 can correspond to the plurality of light-emitting devices 300, and the orthographic projection of the optical structure 400 on the driving backplane 100 can intersect with the orthographic projection of the corresponding light-emitting device 300 on the driving backplane 100. In this way, the optical structure 400 can converge the reflected light formed by the point light source. At the same time, when the display panel 000 is normally displaying, the optical structure 400 can also converge the light emitted by the corresponding light-emitting device 300, thereby improving the brightness of the display surface.

[0078] Among them, multiple light-emitting devices 300 can be divided into multiple pixel groups. The light-emitting devices 300 in one pixel group can be arranged in an array of at least two rows and at least two columns, and the number of light-emitting devices 300 for emitting light of the same color in the same pixel group is at least two. For two different light-emitting devices 300 that emit light of the same color in the same pixel group, the light-gathering abilities of the two optical structures 400 corresponding to the two light-emitting devices 300 are different.

[0079] In this way, even if the sizes of the two light-transmitting holes 501 corresponding to the two light-emitting devices 300 that emit light of the same color are the same, due to the different light-gathering abilities of the two optical structures 400 corresponding to the two light-emitting devices 300, diffracted light with different intensity distributions can be obtained after emission. Then, the stripe sense of the diffraction pattern formed after the final light superposition is weak, and the mixing and superposition effects of light of different colors are also good, which can effectively improve color separation.

[0080] In summary, the embodiment of the present application provides a display panel. Multiple optical structures are located on the light-emitting side of multiple light-emitting devices. Then, the optical structures can converge the light emitted by the light-emitting devices, thereby improving the brightness of the display surface. At the same time, the optical structures can also converge the reflected light formed by the point light source irradiating the display panel in the dark state. For two different light-emitting devices that emit light of the same color in the same pixel group, the light-gathering abilities of the two optical structures corresponding to the two light-emitting devices are different. In this way, even if the sizes of the light-transmitting holes corresponding to the two different light-emitting devices that emit light of the same color are the same, the intensity distributions of the diffracted light formed when the reflected light formed by the point light source irradiating the display panel in the dark state passes through the light-transmitting holes are also different. Then, the stripe sense of the diffraction pattern formed after the final light mixing and superposition is weak, and color separation can be effectively improved, thereby improving the visual effect of the display panel in the dark state.

[0081] For the two optical structures 400, when the heights of the two optical structures 400 are different, the light-gathering abilities of the two optical structures 400 are different. The higher the height of the optical structure 400, the stronger the light-gathering ability of the optical structure 400; when the areas of the orthographic projections of the two optical structures 400 on the driving backplane 100 are different, the light-gathering abilities of the two optical structures 400 are different. The larger the area of the orthographic projection of the optical structure 400 on the driving backplane 100, the stronger the light-gathering ability of the optical structure 400; when the heights of the two optical structures 400 are different and the areas of the orthographic projections on the driving backplane 100 are also different, the light-gathering abilities of the two optical structures 400 may also be different. The higher the height of the optical structure 400 and the larger the area of the orthographic projection on the driving backplane 100, the stronger the light-gathering ability of the optical structure 400.

[0082] For two different light-emitting devices 300 that emit light of the same color in the same pixel group, in order to enable the two optical structures 400 corresponding to the two light-emitting devices 300 to have different light-converging capabilities, the heights of the two optical structures 400 corresponding to the two light-emitting devices 300 can be made different, and / or the areas of the orthographic projections of the two optical structures 400 corresponding to the two light-emitting devices 300 on the driving backplane 100 are different. As a result, the intensity distributions of the diffracted light generated after the light of the point light source reflected by the two light-emitting devices 300 exits are different, so that the fringe feeling of the diffracted pattern formed after the light is mixed and superimposed is weak, and color separation can be effectively improved, and the visual effect of the display panel 000 in the dark state can be improved.

[0083] It should be noted that the height of the optical structure 400 can be in the range of 2 to 10 micrometers. In addition, a halftone mask plate can be used to simultaneously fabricate two optical structures 400 with different heights, thereby simplifying the process.

[0084] Please refer to Figure 2 , the display panel 000 can include a glue layer 700. The glue layer 700 can be located on one side of the plurality of optical structures 400 facing away from the driving backplane 100. The glue layer 700 can be in direct contact with the plurality of optical structures 400, and the refractive index of the optical structure 400 can be greater than the refractive index of the glue layer 700, so that the optical structure 400 can achieve light convergence. Among them, the refractive index of the optical structure 400 can be 1.55 to 1.9, and the refractive index of the glue layer 700 can be 1.4 to 1.6.

[0085] The optical structure 400 in the embodiment of the present application can have various shapes, and the embodiment of the present application does not limit this.

[0086] In a possible implementation manner, as Figure 2 shown, the plurality of optical structures 400 can all be plano-convex lenses, and the surface of the plano-convex lens facing away from the corresponding light-emitting device 300 is a convex arc surface. In this way, by controlling the difference in the arch height and / or aperture of the plano-convex lens, the light-converging capabilities of the plano-convex lenses can be made different.

[0087] In another possible implementation manner, as Figure 3 shown, the surface of the optical structure 400 facing away from the driving backplane 100 can be parallel to the driving backplane 100, and the angle between the side surface of the optical structure 400 and the surface of the optical structure 400 facing the driving backplane 100 is an acute angle. In this way, by controlling the difference in the height of the optical structure 400 and / or the area of the surface of the optical structure 400 facing the driving backplane 100, the light-converging capabilities of the optical structure 400 can be made different.

[0088] Please refer to Figure 4, multiple light-emitting devices 300 may include: multiple first-type light-emitting devices 301, multiple second-type light-emitting devices 302, and multiple third-type light-emitting devices 303. The colors of the light emitted by different types of light-emitting devices 300 are different. Optionally, the first-type light-emitting devices 301 emit red light, the second-type light-emitting devices 302 emit green light, and the third-type light-emitting devices 303 emit blue light.

[0089] Continuing to refer to Figure 4 , the optical structure 400 corresponding to the first-type light-emitting devices 301 may be the first optical structure 401, the optical structure 400 corresponding to the second-type light-emitting devices 302 may be the second optical structure 402, and the optical structure 400 corresponding to the third-type light-emitting devices 303 may be the third optical structure 403.

[0090] There may be one or more of multiple first optical structures 401, multiple second optical structures 402, and multiple third optical structures 403. Among them, the light-converging capabilities of the same type of first optical structure 401 are the same, the light-converging capabilities of the same type of second optical structure 402 are the same, the light-converging capabilities of the same type of third optical structure 403 are the same, while the light-converging capabilities of different types of first optical structures 401 are different, the light-converging capabilities of different types of second optical structures 402 are different, and the light-converging capabilities of different types of third optical structures 403 are different.

[0091] Among them, the number of types of multiple first optical structures 401 may be m1, the number of types of multiple second optical structures 402 may be m2, and the number of types of multiple third optical structures 403 may be m3. Then, m1, m2, and m3 may all be positive integers greater than or equal to 1.

[0092] It should be noted that m1, m2, and m3 cannot be 1 at the same time. When m1, m2, and m3 are all 1, the light-converging capabilities of multiple first optical structures 401 are all the same, the light-converging capabilities of multiple second optical structures 402 are all the same, and the light-converging capabilities of multiple third optical structures 403 are all the same. Then, when the display panel 000 is irradiated with a point light source in the dark state, the intensity distributions of the diffracted light of the red reflected light part, the green reflected light part, and the blue reflected light part in the reflected light of the point light source are all the same, thus unable to improve the visual effect of the display panel 000 in the dark state.

[0093] It should also be noted that the number of types m1 of multiple first optical structures 401 should be greater than or equal to the number of types m3 of multiple third optical structures 403, and the number of types m2 of multiple second optical structures 402 should be greater than or equal to the number of types m3 of multiple third optical structures 403.

[0094] Since red light and green light are easily perceptible to the human eye, when illuminating the display panel 000 with a point light source in the dark state, it is necessary to ensure that the diffraction patterns generated by the red reflected light part and the green reflected light part in the reflected light of the point light source have relatively weak fringe senses respectively. Therefore, it is necessary to ensure that the number of types m1 of the first optical structure 401 corresponding to the first type of light-emitting device 301 is large, so that there are more types of intensity distributions of the diffracted light generated by the red reflected light part in the reflected light of the point light source, and the fringe sense is weaker after the light rays are superimposed; and it is necessary to ensure that the number of types m2 of the second optical structure 402 corresponding to the second type of light-emitting device 302 is large, so that there are also more types of intensity distributions of the diffracted light generated by the green reflected light part in the reflected light of the point light source, and the fringe sense is also weaker after the superposition. Thus, the diffraction patterns of the red light and the green light are not easily perceptible to the human eye, and the visual effect of the display panel 000 in the dark state can be improved.

[0095] As Figures 5 to 10 shown, multiple light-emitting devices 300 can be divided into multiple pixel groups K. The light-emitting devices 300 in a pixel group K can be arranged in an array of at least two rows and at least two columns, and the number of light-emitting devices 300 for emitting the same color light in the same pixel group K is at least two.

[0096] It should be noted that Figures 5 to 10 is only a schematic diagram. Among them, R1, R2, R3, and R4 all represent the first type of light-emitting device 301, and the light-gathering abilities of the first optical structures 401 corresponding to R1, R2, R3, and R4 are all different; G1, G2, G3, and G4 all represent the second type of light-emitting device 302, and the light-gathering abilities of the second optical structures 402 corresponding to G1, G2, G3, and G4 are all different; B1, B2, B3, and B4 all represent the third type of light-emitting device 303, and the light-gathering abilities of the third optical structures 403 corresponding to B1, B2, B3, and B4 are all different.

[0097] In a possible implementation manner, in the same pixel group K, the number of the first type of optical devices 301 is equal to the number of the third type of optical devices 303, and the number of the second type of optical devices 302 is twice the number of the first type of optical devices 301.

[0098] Optionally, as Figures 5 to 7As shown, multiple light-emitting devices 300 can be arranged in multiple columns along the first direction X and in multiple rows along the second direction Y. For two adjacent columns of light-emitting devices 300, each light-emitting device 300 in one column of light-emitting devices 300 is a second type of light-emitting device 302, and one column of light-emitting devices 300 includes multiple first type of light-emitting devices 301 and multiple third type of light-emitting devices 303 arranged alternately; for two adjacent rows of light-emitting devices 300, each light-emitting device 300 in one row of light-emitting devices 300 is a second type of light-emitting device 302, and one row of light-emitting devices 300 includes multiple first type of light-emitting devices 301 and multiple third type of light-emitting devices 303 arranged alternately.

[0099] In the case where m1 = m2 = m3, m1, m2, and m3 are all positive integers greater than or equal to 2. At this time, within the same pixel group K, the number of the first type of light-emitting devices 301 can be equal to m1, the number of the third type of optical devices 303 can also be equal to m1, and the number of the second type of optical devices 302 is equal to 2 times m1. Exemplarily, m1 = m2 = m3 = 4, then as Figure 5 shown, within the same pixel group K, the number of the first type of light-emitting devices 301 and the number of the third type of optical devices 303 are both 4, and the number of the second type of optical devices 302 is 8. Another example, m1 = m2 = m3 = 2, then as Figure 6 shown, within the same pixel group K, the number of the first type of light-emitting devices 301 and the number of the third type of optical devices 303 are both 2, and the number of the second type of optical devices 302 is 4.

[0100] Optionally, please continue to refer to Figure 5 and Figure 6 , within the same pixel group K, the types of the second optical structures 402 corresponding to two adjacent second type of light-emitting devices 302 in the first direction X are different, and / or the types of the second optical structures 402 corresponding to two adjacent second type of light-emitting devices 302 in the second direction Y are different. In this way, the light-gathering capabilities of the second optical structures 402 corresponding to two adjacent second type of light-emitting devices 302 are different, so when the display panel 000 is irradiated with a point light source in the dark state, the diffraction fringes formed after the diffraction light generated when the light reflected by these two adjacent second type of light-emitting devices 302 exits are superimposed are less obvious, thereby the visual effect of the display panel 000 in the dark state can be improved better.

[0101] In the case where m1 = m2 = m3 = 4, the number of types of the first optical structure 401, the second optical structure 402, and the third optical structure 403 are all 4. Thus, when the display panel 000 is irradiated with a point light source in the dark state, the diffraction light generated when the light reflected by multiple light-emitting devices 300 with the same emitted light color exits can have 4 types of diffraction patterns, as Figure 11As shown, the fringes after the superposition of these four diffraction patterns are weaker, so that the visual effect of the display panel 000 in the dark state can be better improved. At the same time, the diffraction patterns of the light rays of each color have weak fringes, so the effect after the mixing and superposition of the light rays of different colors is also better, thus more effectively improving color separation.

[0102] In the case where m1 > m3 and / or m2 > m3, m1 and / or m2 can be positive integers greater than or equal to 2, and m3 can be a positive integer greater than or equal to 1. In the same pixel group K, the number of the first type of light-emitting devices 301 and the number of the third type of light-emitting devices 303 can both be: the least common multiple of m1, m2, m3, and 2, and the number of the second type of optical devices 302 can be: twice the least common multiple of m1, m2, m3, and 2. Exemplarily, m1 = 2, m2 = 2, m3 = 1, then as Figure 7 shown, in the same pixel group K, the number of the first type of light-emitting devices 301 and the number of the third type of optical devices 303 are both 2, and the number of the second type of optical devices 302 is 4. Among them, the least common multiple of m1, m2, m3, and 2 is: the smallest multiple other than 0 among the common multiples of m1, m2, m3, and 2.

[0103] In another possible implementation, in the same pixel group K, the number of the first type of optical devices 301 is equal to the number of the second type of optical devices 302 and is equal to the number of the third type of optical devices 303.

[0104] Optionally, as Figures 8 to 10 shown, multiple light-emitting devices 300 can be arranged in multiple columns along the first direction X and in multiple rows along the second direction Y. For two adjacent columns of light-emitting devices 300, each light-emitting device 300 in one column of light-emitting devices 300 is the third type of light-emitting device 303, and one column of light-emitting devices 300 includes multiple first type of light-emitting devices 301 and multiple second type of light-emitting devices 302 arranged alternately; for any row of light-emitting devices 300, each light-emitting device 300 in one row of light-emitting devices 300 can be the first type of light-emitting device 301, or the second type of light-emitting device 302, or the third type of light-emitting device 303.

[0105] In the case where m1 = m2 = m3, m1, m2, and m3 are all positive integers greater than or equal to 2. At this time, in the same pixel group K, the number of the first type of light-emitting devices 301, the number of the second type of optical devices 302, and the number of the third type of optical devices 303 can all be equal to m1. Exemplarily, m1 = m2 = m3 = 2, then as Figure 8 shown, in the same pixel group K, the number of the first type of light-emitting devices 301, the number of the second type of optical devices 302, and the number of the third type of optical devices 303 are all 2.

[0106] When m1 = m2 = m3 = 2, the number of types of the first optical structure 401, the second optical structure 402, and the third optical structure 403 is 2 each. Thus, when the display panel 000 is irradiated with a point light source in the dark state, there can be 2 types of diffraction patterns for the light rays reflected by multiple light-emitting devices 300 with the same outgoing light color when the light rays are emitted. Then, the stripe sense of the diffraction pattern obtained after the superposition of these 2 types of diffraction patterns is weak, thereby improving the visual effect of the display panel 000 in the dark state. At the same time, the diffraction patterns of the light rays of each color all have a weak stripe sense, and the effect after the mixing and superposition of the light rays of different colors is also good, thereby more effectively improving color separation.

[0107] When m1 > m3 and / or m2 > m3, m1 and / or m2 can be positive integers greater than or equal to 2, and m3 can be a positive integer greater than or equal to 1. Within the same pixel group K, the number of the first type of light-emitting devices 301, the number of the second type of optical devices 302, and the number of the third type of light-emitting devices 303 can all be: the least common multiple of m1, m2, and m3. Among them, the least common multiple of m1, m2, and m3 is: the smallest multiple other than 0 among the common multiples of m1, m2, and m3. Exemplarily, m1 = 2, m2 = 2, m3 = 1, then as Figure 9 shown, within the same pixel group K, the number of the first type of light-emitting devices 301, the number of the second type of optical devices 302, and the number of the third type of optical devices 303 are all 2. Another exemplarily, m1 = 3, m2 = 2, m3 = 1, then as Figure 10 shown, within the same pixel group K, the number of the first type of light-emitting devices 301, the number of the second type of optical devices 302, and the number of the third type of optical devices 303 are all 6.

[0108] Please refer to Figures 12 to 14 , the display panel 000 may include: a black matrix layer 500 and a light filter layer 600.

[0109] The black matrix layer 500 may be located on the side of the pixel definition layer 200 away from the driving backplane 100. The black matrix layer 500 may have a plurality of light passing holes 501. The plurality of light passing holes 501 may correspond to a plurality of pixel openings U. That is to say, the plurality of light passing holes 501 may correspond to a plurality of light-emitting devices 300, and the orthographic projection of the pixel opening U on the driving backplane 100 may be located within the orthographic projection of the corresponding light passing hole 501 on the driving backplane 100. In this way, the light rays emitted by at least part of the light-emitting devices 300 located within the pixel opening U can pass through the light passing holes 501 as much as possible, avoiding waste of light rays.

[0110] The filter layer 600 may include a plurality of filter blocks 601. The plurality of filter blocks 601 may correspond to the plurality of light passing holes 501, and the orthographic projection of the light passing holes 501 on the driving backplane 100 may be located within the orthographic projection of the corresponding filter blocks 601 on the driving backplane 100. The plurality of filter blocks 601 may also correspond to the plurality of optical structures 400, and the filter blocks 601 may be stacked with the corresponding optical structures 400 in a direction perpendicular to the driving backplane 100.

[0111] Among them, the plurality of filter blocks 601 may be divided into: a plurality of red filter blocks R, a plurality of green filter blocks G, and a plurality of blue filter blocks B. The plurality of first type light emitting devices 301 may correspond to the plurality of red filter blocks R, the plurality of second type optical devices 302 may correspond to the plurality of green filter blocks G, and the plurality of third type light emitting devices 303 may correspond to the plurality of blue filter blocks B. Then, the light emitted by the first type light emitting devices 301 may be emitted through the corresponding red filter blocks R, the light emitted by the second type optical devices 302 may be emitted through the corresponding green filter blocks G, and the light emitted by the third type light emitting devices 303 may be emitted through the corresponding blue filter blocks B, so that the color of the light can be made purer, thereby improving the color gamut of the OLED display panel.

[0112] In a possible implementation, as Figure 12 and Figure 13 shown, the optical structure 400 may be located on a side of the corresponding filter block 601 away from the driving backplane 100. At this time, at least a part of the filter block 601 may be located within the corresponding light passing hole 501.

[0113] It should be noted that, as Figure 12 shown, the optical structure 400 may be in direct contact with the corresponding filter block 601, so as to simplify the process; or, as Figure 13 shown, there may be a planarization layer 800 between the optical structure 400 and the corresponding filter block 601. The planarization layer 800 may protect the plurality of filter blocks 601, and at the same time may also improve the flatness of the film layer, so that the plurality of optical structures 400 are also formed relatively flat, further ensuring the light converging effect of the optical structure 400.

[0114] Please continue to refer to Figure 12 and Figure 13 , the light passing hole 501 corresponding to the first type light emitting device 301 is the first light passing hole 5011, the light passing hole 501 corresponding to the second type light emitting device 302 is the second light passing hole 5012, and the light passing hole 501 corresponding to the third type light emitting device 303 is the third light passing hole 5013.

[0115] Among them, the positive projection of the third light-passing hole 5013 corresponding to the third type of light-emitting device 303 on the driving backplane 100 may be located within the positive projection of the third optical structure 403 corresponding to the third type of light-emitting device 303 on the driving backplane 100, and the area of the positive projection of the third optical structure 403 on the driving backplane 100 may be larger than the area of the positive projection of the third light-passing hole 5013 on the driving backplane 100;

[0116] And / or, the positive projection of the first light-passing hole 5011 corresponding to the first type of light-emitting device 301 on the driving backplane 100 may be located within the positive projection of the first optical structure 401 corresponding to the first type of light-emitting device 301 on the driving backplane 100, and the area of the positive projection of the first optical structure 401 on the driving backplane 100 may be smaller than the area of the positive projection of the first light-passing hole 5011 on the driving backplane 100; the positive projection of the second light-passing hole 5012 corresponding to the second type of light-emitting device 302 on the driving backplane 100 may be located within the positive projection of the second optical structure 402 corresponding to the second type of light-emitting device 302 on the driving backplane 100, and the area of the positive projection of the second optical structure 402 on the driving backplane 100 may be smaller than the area of the positive projection of the second light-passing hole 5012 on the driving backplane 100.

[0117] In this way, the third optical structure 403 can converge relatively more light rays emitted by the corresponding third type of light-emitting device 303, the first optical structure 401 can converge relatively fewer light rays emitted by the corresponding first type of light-emitting device 301, and the second optical structure 402 can also converge relatively fewer light rays emitted by the corresponding second type of light-emitting device 302. Since the light-emitting device 300 that emits blue light rays is also the third type of light-emitting device 303, which has a relatively high power consumption and a short lifespan, in this way, the power consumption of the third type of light-emitting device 303 can be reduced to a certain extent, and the lifespan of the third type of light-emitting device 303 can be extended, thereby ensuring the luminous efficiency of each light-emitting device 300 and the display uniformity of the display panel 000.

[0118] Since the refractive index difference between the optical structure 400 and the adhesive layer 700 is relatively large, when external environmental light enters the display panel 000, reflection is extremely likely to occur at the interface where the optical structure 400 and the adhesive layer 700 are in contact, thereby affecting the display effect of the display panel 000. Therefore, in the embodiments of the present application, as Figure 14 shown, at least a part of the optical structure 400 may be located within the light-passing hole 501, and the plurality of light-filtering blocks 601 may be located on the side of the adhesive layer 700 away from the driving backplane 100.

[0119] In this way, after the external ambient light enters the display panel 000, a part of the light will be absorbed by the light filter block 601, and then reflection occurs at the interface where the optical structure 400 contacts the adhesive layer 700. The reflected light needs to pass through the filtration and absorption of the light filter block 601 first, and then exit the display panel 000. In this way, the reflectivity of the display panel 000 to the external ambient light can be effectively reduced, thereby improving the display effect.

[0120] Meanwhile, the pixel definition layer 200 can also have a certain light absorption property. After the external ambient light enters the interior of the display panel 000, the pixel definition layer 200 can absorb a part of the external ambient light, thereby reducing the reflection of the pixel definition layer 200 to the external ambient light to a certain extent, and at the same time, it can also reduce the reflection of the film layer on the side of the pixel definition layer 200 facing the driving backplane 100 to the external ambient light, thereby further reducing the reflectivity of the display panel 000 to the external ambient light.

[0121] In other possible cases, please refer to Figure 15 , the display panel 000 may not have the black matrix layer 500, and the position of the boundary of the light passing hole 501 of the black matrix layer 500 can be replaced by the overlap of two light filter blocks 601 of different colors. The transmittance at the overlapping position of the two light filter blocks 601 is relatively low. In this way, the same effect as the black matrix layer 500 can be achieved.

[0122] Please refer to Figure 16 , the display panel 000 may further include a packaging layer 900 and a touch layer 1000.

[0123] The packaging layer 900 can be located on the side of the pixel definition layer 200 and the plurality of light emitting devices 300 facing away from the driving backplane 100. The packaging layer 900 can include: a first inorganic packaging layer 901, an organic packaging layer 902, and a second inorganic packaging layer 903 stacked in the direction away from the driving backplane 100. The packaging layer 900 can package the plurality of light emitting devices 300 to protect the light emitting devices 300 from being eroded by water and oxygen in the external environment.

[0124] The touch layer 1000 can be located on the side of the packaging layer 900 facing away from the driving backplane 100, that is, the touch layer 1000 can be located on the side of the second inorganic packaging layer 903 facing away from the driving backplane 100. The touch layer 1000 can include: a touch buffer layer 1001, a first touch electrode layer 1002, a touch insulation layer 1003, a second touch electrode layer 1004, and a touch protection layer 1005 stacked in the direction away from the driving backplane 100. The black matrix layer 500 can be located on the side of the touch protection layer 1005 facing away from the driving backplane 100.

[0125] One of the first touch electrode layer 1002 and the second touch electrode layer 1004 may include: a plurality of first touch units and a plurality of second touch units arranged in the same layer, and connection electrodes for connecting two adjacent first touch units; the other of the first touch electrode layer 1002 and the second touch electrode layer 1004 may include: bridging electrodes for connecting two adjacent second touch units. Through the cooperation of the plurality of first touch units and the plurality of second touch units, the display panel 000 can achieve a touch function.

[0126] Both the first touch unit and the second touch unit are grid-shaped electrodes with a plurality of grid holes. A plurality of light-emitting devices 300 may correspond to the plurality of grid holes, that is, the plurality of grid holes may correspond to the plurality of light-transmitting holes 501, and the orthographic projection of each light-emitting device 300 on the driving backplane 100 may be located within the orthographic projection of the corresponding grid hole on the driving backplane 100, so as to ensure that the light emitted by the light-emitting device 300 will not be blocked by the boundary of the grid hole, and further ensure that the display panel 000 can display normally.

[0127] It should be noted that since both the first touch unit and the second touch unit are metal electrodes with a relatively high reflectivity, in order to ensure the display effect, the orthographic projection of the light-transmitting hole 501 on the driving backplane 100 needs to be located within the orthographic projection of the grid hole on the driving backplane 100, so that the metal boundary of the grid hole is completely covered by the black matrix boundary of the light-transmitting hole 501, thereby avoiding the reflection of the metal boundary of the grid hole on the external ambient light and affecting the display effect.

[0128] In a possible implementation manner, as Figure 17 shown, the touch layer 1000 may not have a touch protection layer 1005, that is, the black matrix layer 500 may be located on the side of the second touch electrode layer 1004 away from the driving backplane 100, and the black matrix layer 500 may be in direct contact with the second touch electrode layer 1004, so that the black matrix layer 500 can play a certain protective role for the second touch electrode layer 1004.

[0129] It should also be noted that, as Figure 18 shown, the display panel 000 may further include a plurality of spacer pillars 1100. The plurality of spacer pillars 1100 may be located on the side of the pixel definition layer 200 away from the driving backplane 100, and the spacer pillars 1100 may be located between two adjacent pixel openings U. In this way, when the light-emitting layer in the light-emitting device 300 is evaporated using a mask plate, the spacer pillars 1100 can support the mask plate; at the same time, the plurality of spacer pillars 1100 can also play a certain protective role for the light-emitting device 300 located within the pixel opening U.

[0130] In summary, the embodiment of the present application provides a display panel. A plurality of optical structures are located on the light-emitting side of a plurality of light-emitting devices. Then, the optical structures can converge the light emitted by the light-emitting devices, thereby improving the brightness of the display surface. At the same time, the optical structures can also converge the reflected light formed by the point light source irradiating the display panel in the dark state. For two different light-emitting devices that emit the same color light in the same pixel group, the light-converging abilities of the two optical structures corresponding to the two light-emitting devices are different. In this way, even if the sizes of the light-passing holes corresponding to the two different light-emitting devices that emit the same color light are the same, the intensity distributions of the diffracted light formed when the reflected light formed by the point light source irradiating the display panel in the dark state passes through the light-passing holes are different. Then, the stripe sense of the diffracted pattern formed after the final light mixing and superposition is weak, and color separation can be effectively improved, thereby improving the visual effect of the display panel in the dark state.

[0131] The embodiment of the present application further provides a display device, which can be: any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc.

[0132] The display device may include: a driving chip and a display panel. Among them, the display panel may be the display panel 000 in the above embodiment, and the driving chip may be electrically connected to the display panel 000, so as to drive the display panel 000 to display a picture.

[0133] It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. And it can be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be an intermediate layer. Additionally, it can be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or there may be more than one intermediate layer or element. Additionally, it can also be understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Like reference numerals throughout indicate like elements.

[0134] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" means two or more, unless otherwise clearly defined.

[0135] The above are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that, Comprising: a driving backplane, a pixel definition layer, a plurality of light-emitting devices, and a plurality of optical structures; the pixel definition layer is located on one side of the driving backplane, and the pixel definition layer has a plurality of pixel openings; the plurality of light-emitting devices correspond to the plurality of pixel openings, at least part of the light-emitting devices are located in the corresponding pixel openings, and the light-emitting devices are electrically connected to the driving backplane; the plurality of optical structures are located on the light-emitting side of the plurality of light-emitting devices, and the plurality of optical structures correspond to the plurality of light-emitting devices, and the orthographic projection of the optical structure on the driving backplane overlaps with the orthographic projection of the corresponding light-emitting device on the driving backplane; wherein, the plurality of light-emitting devices are divided into a plurality of pixel groups, the light-emitting devices in one pixel group are arranged in an array of at least two rows and at least two columns, and the number of light-emitting devices for emitting the same color light in the same pixel group is at least two; for two different light-emitting devices in the same pixel group that emit the same color light, the light-converging capabilities of the two optical structures corresponding to the two light-emitting devices are different.

2. The display panel according to claim 1, characterized in that For two different light-emitting devices in the same pixel group that emit the same color light, the heights of the two optical structures corresponding to the two light-emitting devices are different, and / or, the areas of the orthographic projections of the two optical structures corresponding to the two light-emitting devices on the driving backplane are different.

3. The display panel according to claim 1, wherein The plurality of light-emitting devices include: a plurality of first-type light-emitting devices, a plurality of second-type light-emitting devices, and a plurality of third-type light-emitting devices; different types of light-emitting devices emit light of different colors; the optical structure corresponding to the first-type light-emitting device is a first optical structure, the optical structure corresponding to the second-type light-emitting device is a second optical structure, and the optical structure corresponding to the third-type light-emitting device is a third optical structure; the number of types m1 of the plurality of first optical structures is greater than or equal to the number of types m3 of the plurality of third optical structures, and the number of types m2 of the plurality of second optical structures is greater than or equal to the number of types m3 of the plurality of third optical structures; m1, m2, and m3 are all positive integers greater than or equal to 1; wherein, the light-converging capabilities of the same type of first optical structure are the same, the light-converging capabilities of the same type of second optical structure are the same, and the light-converging capabilities of the same type of third optical structure are the same.

4. The display panel according to claim 3, wherein In the same pixel group, the number of the first-type optical devices is equal to the number of the third-type optical devices, and the number of the second-type optical devices is equal to 2 times the number of the first-type optical devices; wherein, in the case of m1 = m2 = m3, m1, m2, and m3 are all positive integers greater than or equal to 2; in the same pixel group, the number of the first-type optical devices is equal to m1; Or, in the case of m1 > m3 and / or m2 > m3, m1 and / or m2 are positive integers greater than or equal to 2, and m3 is a positive integer greater than or equal to 1; in the same pixel group, the number of the first-type optical devices is: the least common multiple of m1, m2, m3, and 2.

5. The display panel according to claim 4, wherein The multiple light-emitting devices are arranged in multiple columns along a first direction and in multiple rows along a second direction; For two adjacent columns of light-emitting devices, each light-emitting device in one column of the light-emitting devices is a second type of light-emitting device, and one column of the light-emitting devices includes multiple first type of light-emitting devices and multiple third type of light-emitting devices arranged alternately; for two adjacent rows of the light-emitting devices, each light-emitting device in one row of the light-emitting devices is a second type of light-emitting device, and one row of the light-emitting devices includes multiple first type of light-emitting devices and multiple third type of light-emitting devices arranged alternately.

6. The display panel according to claim 5, characterized in that, In the case where m1 = m2 = m3, in the same pixel group, the types of the two second optical structures corresponding to two adjacent second type of light-emitting devices in the first direction are different, and / or the types of the two second optical structures corresponding to two adjacent second type of light-emitting devices in the second direction are different.

7. The display panel according to claim 3, characterized in that, In the same pixel group, the number of the first type of optical devices is equal to the number of the second type of optical devices and is equal to the number of the third type of optical devices; Wherein, in the case where m1 = m2 = m3, m1, m2 and m3 are all positive integers greater than or equal to 2; in the same pixel group, the number of the first type of optical devices is equal to m1; Or, in the case where m1 > m3 and / or m2 > m3, m1 and / or m2 are positive integers greater than or equal to 2, and m3 is a positive integer greater than or equal to 1; in the same pixel group, the number of the first type of optical devices is: the least common multiple of m1, m2 and m3.

8. The display panel according to claim 7, wherein The multiple light-emitting devices are arranged in multiple columns along a first direction and in multiple rows along a second direction; For two adjacent columns of light-emitting devices, each light-emitting device in one column of the light-emitting devices is a third type of light-emitting device, and one column of the light-emitting devices includes multiple first type of light-emitting devices and multiple second type of light-emitting devices arranged alternately; for any row of the light-emitting devices, each light-emitting device in one row of the light-emitting devices is the first type of light-emitting device, the second type of light-emitting device or the third type of light-emitting device.

9. The display panel according to any one of claims 3 to 8, characterized in that, The color of the light emitted by the first type of light-emitting device is red, the color of the light emitted by the second type of light-emitting device is green, and the color of the light emitted by the third type of light-emitting device is blue.

10. The display panel according to any one of claims 1 to 8, characterized in that The display panel further includes: a black matrix layer, a color filter layer and an adhesive layer; The black matrix layer is located on a side of the pixel defining layer away from the driving backplane, the black matrix layer has multiple light-transmitting holes, the multiple light-transmitting holes correspond to the multiple pixel openings, and the orthographic projection of the pixel opening on the driving backplane is located within the orthographic projection of the corresponding light-transmitting hole on the driving backplane; The color filter layer includes multiple color filter blocks, the multiple color filter blocks correspond to the multiple light-transmitting holes and correspond to the multiple optical structures; the color filter blocks are stacked with the corresponding optical structures in a direction perpendicular to the driving backplane; the orthographic projection of the light-transmitting hole on the driving backplane is located within the orthographic projection of the corresponding color filter block on the driving backplane; The adhesive layer is located on a side of the plurality of optical structures facing away from the driving backplane, and the adhesive layer is in direct contact with the plurality of optical structures; wherein, the refractive index of the optical structure is greater than the refractive index of the adhesive layer.

11. The display panel according to claim 10, wherein The optical structure is located on a side of the corresponding light filtering block facing away from the driving backplane; wherein, at least a part of the light filtering block is located in the corresponding light passing hole.

12. The display panel according to claim 11, wherein The plurality of light emitting devices include: a plurality of first type light emitting devices, a plurality of second type light emitting devices, and a plurality of third type light emitting devices; wherein, the orthographic projection of the third light passing hole corresponding to the third type light emitting device on the driving backplane is located within the orthographic projection of the third optical structure corresponding to the third type light emitting device on the driving backplane, and the area of the orthographic projection of the third optical structure on the driving backplane is greater than the area of the orthographic projection of the third light passing hole on the driving backplane; and / or, the orthographic projection of the first optical structure corresponding to the first type light emitting device on the driving backplane is located within the orthographic projection of the first light passing hole corresponding to the first type light emitting device on the driving backplane, and the area of the orthographic projection of the first optical structure on the driving backplane is smaller than the area of the orthographic projection of the first light passing hole on the driving backplane; the orthographic projection of the second optical structure corresponding to the second type light emitting device on the driving backplane is located within the orthographic projection of the second light passing hole corresponding to the second type light emitting device on the driving backplane, and the area of the orthographic projection of the second optical structure on the driving backplane is smaller than the area of the orthographic projection of the second light passing hole on the driving backplane.

13. The display panel according to claim 10, wherein At least a part of the optical structure is located in the light passing hole, and the plurality of light filtering blocks are located on a side of the adhesive layer facing away from the driving backplane.

14. The display panel according to any one of claims 1 to 8, 11 to 13, characterized in that The plurality of optical structures are all plano-convex lenses, and the surface of the plano-convex lens facing away from the corresponding light emitting device is a convex arc surface; or, the surface of the optical structure facing away from the driving backplane is parallel to the driving backplane, and the included angle between the side surface of the optical structure and the surface of the optical structure facing the driving backplane is an acute angle.

15. A display device, characterized in that, It includes a driving chip and the display panel according to any one of claims 1 to 14, and the driving chip is electrically connected to the display panel.

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