Display panel and manufacturing method therefor, and display apparatus

Abstract

The present application belongs to the technical field of display. Disclosed is a display panel. The display panel comprises a driving backplane, a pixel definition layer, a light-emitting functional layer and a color filter layer, wherein the driving backplane has a plurality of subpixel regions; the pixel definition layer has a plurality of pixel openings; and the color filter layer comprises a plurality of color resist blocks respectively corresponding to the plurality of subpixel regions, the orthographic projection of each color resist block on the driving backplane being located in the corresponding subpixel region. There is a spacing between each target color resist block and at least two adjacent color resist blocks, and at least one target color resist block has a first side edge and a second side edge, the spacing between the first side edge and the adjacent color resist block being greater than the spacing between the second side edge and the adjacent color resist block; there is a spacing between the center of the orthographic projection of each target color resist block on the driving backplane and the center of the corresponding subpixel region; and the orthographic projection of each pixel opening on the driving backplane is located within the orthographic projection of the corresponding color resist block on the driving backplane. The present application can alleviate the problem of the brightness in a display panel being uneven.

Description

Display panel, manufacturing method thereof and display device

[0001] The present application claims priority to the Chinese patent application No. 202410658411.3, filed on May 24, 2024, and entitled "Display panel, manufacturing method thereof and display device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a display panel, a manufacturing method thereof and a display device. BACKGROUND

[0003] Display devices have a wide range of application scenarios in life, such as electronic devices such as mobile phones and tablet computers. A display panel is an important component of a display device. SUMMARY

[0004] The present application provides a display panel, a manufacturing method thereof and a display device, which can improve the problem of uneven brightness of the display panel. The technical solution is as follows:

[0005] In one aspect, a display panel is provided, the display panel comprising: a driving backplate, and a pixel definition layer, a light emitting functional layer and a color film layer located on the driving backplate, the driving backplate having a plurality of sub-pixel regions;

[0006] The light emitting functional layer comprises a plurality of light emitting units, the plurality of light emitting units corresponding to the plurality of sub-pixel regions, and the orthographic projection of the light emitting unit on the driving backplate being located within the corresponding sub-pixel region;

[0007] The pixel definition layer has a plurality of pixel openings, the plurality of pixel openings corresponding to the plurality of light emitting units, and the orthographic projection of the pixel opening on the driving backplate overlapping the orthographic projection of the corresponding light emitting unit on the driving backplate;

[0008] The color film layer is located on the side of the light emitting functional layer away from the driving backplate, and the color film layer comprises a plurality of color resistance blocks, the plurality of color resistance blocks corresponding to the plurality of sub-pixel regions, and the orthographic projection of the color resistance block on the driving backplate being located within the corresponding sub-pixel region;

[0009] At least part of the color resistance blocks are target color resistance blocks, there is a spacing between the target color resistance block and at least two adjacent color resistance blocks, and at least one target color resistance block has a first side and a second side; the spacing between the first side and the adjacent color resistance block is greater than the spacing between the second side and the adjacent color resistance block;

[0010] The center of the orthographic projection of the target color resist block on the driving back plate and the center of the corresponding sub-pixel region have a distance; the plurality of pixel openings correspond to the plurality of color resist blocks, and the orthographic projection of the pixel opening on the driving back plate is located in the orthographic projection of the corresponding color resist block on the driving back plate.

[0011] Optionally, the plurality of pixel openings include a target pixel opening corresponding to the target color resist block, and the plurality of sub-pixel regions include a target sub-pixel region corresponding to the target color resist block.

[0012] The center of the orthographic projection of at least one target color resist block on the driving back plate and the center of the orthographic projection of the target pixel opening on the driving back plate are located in the same direction of the center of the target sub-pixel region.

[0013] Optionally, the plurality of color resist blocks include first, second and third color resist blocks with different colors, and any two of the first, second and third color resist blocks are adjacent.

[0014] The plurality of pixel openings include first, second and third pixel openings, the first pixel opening corresponds to the first color resist block, the second pixel opening corresponds to the second color resist block, and the third pixel opening corresponds to the third color resist block.

[0015] The distance between the center of the orthographic projection of the first color resist block on the driving back plate and the center of the corresponding sub-pixel region is L1, the distance between the center of the orthographic projection of the second color resist block on the driving back plate and the center of the corresponding sub-pixel region is L2, and the distance between the center of the orthographic projection of the third color resist block on the driving back plate and the center of the corresponding sub-pixel region is L3, wherein L2>L1 and L2>L3.

[0016] The second color resist block is the target color resist block, the center of the orthographic projection of the second pixel opening on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the second color resist block in a first direction, and the first direction is the direction in which the center of the sub-pixel region corresponding to the second color resist block is directed to the center of the orthographic projection of the second color resist block on the driving back plate.

[0017] Optionally, L1>L3, the first color resist block is also the target color resist block, and the center of the orthographic projection of the first color resist block on the driving back plate is located on the side of the center of the sub-pixel region corresponding to the first color resist block away from a specified position.

[0018] A center of a normal projection of the second color resist block on the driving back plate is located away from the specified position and away from a center of a normal projection of the first color resist block on the driving back plate.

[0019] A center of a normal projection of the first pixel opening on the driving back plate is located on a side of a center of the sub-pixel region corresponding to the first color resist block away from the specified position.

[0020] Optionally, L1>L3, and the first color resist block is also the target color resist block.

[0021] A center of a normal projection of the first pixel opening on the driving back plate is located on a side of a center of the sub-pixel region corresponding to the first color resist block in the first direction, and / or a center of a normal projection of the third pixel opening on the driving back plate is located on a side of a center of the corresponding sub-pixel region in the first direction.

[0022] Optionally, the display panel further comprises: a plurality of lens structures located on a side of the color film layer away from the driving back plate, the plurality of lens structures correspond to the plurality of color resist blocks, and a normal projection of the lens structure on the driving back plate at least partially overlaps with a normal projection of the corresponding color resist block on the driving back plate.

[0023] The plurality of lens structures comprise: a first lens structure, a second lens structure and a third lens structure, the first lens structure corresponds to the first color resist block, the second lens structure corresponds to the second color resist block, and the third lens structure corresponds to the third color resist block.

[0024] A center of a normal projection of the second lens structure on the driving back plate coincides with a center of a normal projection of the second pixel opening on the driving back plate.

[0025] Optionally, a center of a normal projection of the first lens structure on the driving back plate coincides with a center of a normal projection of the first pixel opening on the driving back plate; and / or,

[0026] A center of a normal projection of the third lens structure on the driving back plate coincides with a center of a normal projection of the third pixel opening on the driving back plate.

[0027] Optionally, the display panel further comprises: a cover layer located on a side of the color film layer away from the driving back plate.

[0028] The cover layer is in direct contact with a side of the color film layer away from the driving back plate, and fills a gap between the target color resist block and at least two adjacent color resist blocks.

[0029] Optionally, the plurality of color resist blocks comprise a plurality of the first color resist blocks, a plurality of the second color resist blocks, and a plurality of the third color resist blocks, the plurality of sub-pixel regions are arranged along a second direction and a third direction, the second direction is a direction in which the sub-pixel region corresponding to the first color resist block is oriented towards the sub-pixel region corresponding to the second color resist block, and the third direction is a direction in which the sub-pixel region corresponding to the third color resist block is oriented towards the sub-pixel region corresponding to the second color resist block.

[0030] Optionally, the shape of the sub-pixel region is hexagonal, or the shape of the sub-pixel region is rectangular.

[0031] Optionally, in the second direction or the third direction, the distance between any two adjacent pixel openings is the same.

[0032] Optionally, an edge of the orthographic projection of the first color resist block on the driving back plate coincides with an edge of the sub-pixel region corresponding to the first color resist block, and an edge of the orthographic projection of the third color resist block on the driving back plate coincides with an edge of the sub-pixel region corresponding to the third color resist block.

[0033] Optionally, a center of the orthographic projection of the first pixel opening on the driving back plate is located on one side of a center of the sub-pixel region corresponding to the first color resist block in the first direction, and / or a center of the orthographic projection of the third pixel opening on the driving back plate is located on one side of a center of the sub-pixel region corresponding to the third color resist block in the first direction.

[0034] Optionally, the plurality of pixel openings comprise a target pixel opening corresponding to the target color resist block, a distance between an edge of the orthographic projection of the target pixel opening on the driving back plate and an edge of the orthographic projection of the target color resist block on the driving back plate is greater than or equal to 0.1 microns.

[0035] Optionally, a ratio of an area of the orthographic projection of the target color resist block on the driving back plate to an area of the sub-pixel region corresponding to the target color resist block is greater than or equal to 0.7.

[0036] Optionally, the display panel further comprises at least one encapsulation layer.

[0037] The at least one encapsulation layer is located between the light-emitting functional layer and the color film layer.

[0038] Optionally, the encapsulation layer is a plurality of layers, and the plurality of encapsulation layers comprise at least one inorganic encapsulation layer and at least one organic encapsulation layer which are stacked.

[0039] In another aspect, a manufacturing method of a display panel is provided, the method comprising:

[0040] A driving backplane is provided, the driving backplane having a plurality of sub-pixel regions;

[0041] A pixel definition layer, a light-emitting functional layer, and a color filter layer are manufactured on the driving backplane;

[0042] The light-emitting functional layer comprises a plurality of light-emitting units corresponding to the plurality of sub-pixel regions, and a normal projection of the light-emitting unit on the driving backplane is located within the corresponding sub-pixel region.

[0043] The pixel definition layer has a plurality of pixel openings corresponding to the plurality of light-emitting units, and a normal projection of the pixel opening on the driving backplane overlaps with a normal projection of the corresponding light-emitting unit on the driving backplane.

[0044] The color filter layer is located on a side of the light-emitting functional layer away from the driving backplane, and the color filter layer comprises a plurality of color resist blocks corresponding to the plurality of sub-pixel regions, and a normal projection of the color resist block on the driving backplane is located within the corresponding sub-pixel region.

[0045] At least part of the color resist blocks are target color resist blocks, and a spacing exists between the target color resist block and at least two adjacent color resist blocks, and at least one target color resist block has a first side and a second side; a spacing between the first side and an adjacent color resist block is greater than a spacing between the second side and an adjacent color resist block; a center of a normal projection of the target color resist block on the driving backplane and a center of the corresponding sub-pixel region have a spacing; the plurality of pixel openings correspond to the plurality of color resist blocks, and a normal projection of the pixel opening on the driving backplane is located within a normal projection of the corresponding color resist block on the driving backplane.

[0046] Optionally, manufacturing the color filter layer on the driving backplane comprises:

[0047] A color resist block material layer is formed on a side of the light-emitting functional layer away from the driving backplane;

[0048] The color resist block material layer is subjected to an exposure process and a spin development process to obtain a color resist block.

[0049] In the spin development process, the display panel rotates around a preset rotation axis.

[0050] In yet another aspect, a display device is provided, which includes a power supply circuit and any of the display panels described above, and the power supply circuit supplies power to the display panel.

[0051] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects: by making the orthographic projection of the pixel opening on the driving backplane located within the orthographic projection of the corresponding color resistance block on the driving backplane, especially by making the orthographic projection of the pixel opening corresponding to the target color resistance block located within the orthographic projection of the target color resistance block on the driving backplane, the problem that the light emitted by the light emitting unit is directly emitted through the gap between the target color resistance block and the adjacent color resistance block is improved, thereby improving the problem of brightness non-uniformity of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the technical schemes in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0053] FIG. 1 is a schematic diagram of a cross-sectional structure of a display panel provided by the related art;

[0054] FIG. 2 is a schematic diagram of a planar structure of a display panel provided by the related art;

[0055] FIG. 3 is a schematic diagram of a cross-sectional structure of a display panel provided by the embodiments of the present application;

[0056] FIG. 4 is a schematic diagram of a planar structure of a display panel provided by the embodiments of the present application;

[0057] FIG. 5 is a partial enlarged view of FIG. 4;

[0058] FIG. 6 is a schematic diagram of the offset degree of the center of the orthographic projection of a different color resistance block on the driving backplane relative to the center of the corresponding sub-pixel region provided by the embodiments of the present application;

[0059] FIG. 7 is a schematic diagram of a planar structure of another display panel provided by the embodiments of the present application;

[0060] FIG. 8 is a schematic diagram of a process of sequentially manufacturing a plurality of first color resistance blocks, a plurality of second color resistance blocks and a third color resistance block provided by the embodiments of the present application;

[0061] FIG. 9 is a schematic diagram of another process of sequentially manufacturing a plurality of first color resistance blocks, a plurality of second color resistance blocks and a third color resistance block provided by the embodiments of the present application;

[0062] FIG. 10 is a schematic diagram of a planar structure of another display panel provided by the embodiments of the present application;

[0063] FIG. 11 is a schematic view of a cross-sectional structure of another display panel according to embodiments of the present application;

[0064] FIG. 12 is a schematic view of a planar structure of another display panel according to embodiments of the present application;

[0065] FIG. 13 is a schematic view of a process of sequentially manufacturing a plurality of first color resist blocks, a plurality of second color resist blocks and a third color resist block according to embodiments of the present application;

[0066] FIG. 14 is a schematic view of a planar structure of another display panel according to embodiments of the present application;

[0067] FIG. 15 is a schematic view of a process of sequentially manufacturing a plurality of first color resist blocks, a plurality of second color resist blocks and a third color resist block according to embodiments of the present application;

[0068] FIG. 16 is a flowchart of a manufacturing method of a display panel according to embodiments of the present application;

[0069] FIG. 17 is a schematic view of an operating device for manufacturing a color film layer according to embodiments of the present application. DETAILED DESCRIPTION

[0070] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0071] FIG. 1 is a schematic view of a cross-sectional structure of a display panel according to the related art, and FIG. 2 is a schematic view of a planar structure of a display panel according to the related art, and FIG. 1 is a schematic view of a cross-sectional structure along the A’A’ cross-sectional line in FIG. 2. As shown in FIG. 1 and FIG. 2, in the related art, the display panel includes a driving backplane 1’, a pixel definition layer 2’, a light-emitting functional layer and a color film layer. The driving backplane 1’ has a plurality of sub-pixel regions 10’, and the light-emitting functional layer includes a plurality of light-emitting units 30’ respectively located in the plurality of sub-pixel regions 10’. The pixel definition layer 2’ has a plurality of pixel openings 20’ respectively corresponding to the plurality of light-emitting units 30’, and the orthographic projection of the pixel opening 20’ on the driving backplane 1’ and the orthographic projection of the corresponding light-emitting unit 30’ on the driving backplane 1’ overlap. The color film layer includes a plurality of color resist blocks 40’, and the plurality of color resist blocks 40’ correspond to the plurality of sub-pixel regions 10’.

[0072] In an ideal design, the edges of the orthographic projection of each color resist block 40' on the driving backplate 1 coincide with the edges of the corresponding sub-pixel region 10'. However, in the actual manufacturing process, some color resist blocks 40' may have overdevelopment problems. The edges of the orthographic projection of the overdeveloped color resist blocks 40' on the driving backplate 1 are inside the edges of the corresponding sub-pixel region 10', thereby causing a gap between the overdeveloped color resist block 40' and the adjacent color resist block. The orthographic projection of the gap on the driving backplate 1 partially coincides with the orthographic projection of the plurality of pixel openings 20' on the driving backplate 1, that is, there is a case where the color group block 40' does not completely cover the corresponding pixel opening 20', thereby causing the light emitted by the light emitting unit 30' to be directly emitted through the gap between the overdeveloped color resist block 40' and the adjacent color resist block 40'. The directly emitted light is indicated by the arrows in FIG. 1. Since the brightness of the light emitted without passing through the color resist block is greater than the brightness of the light emitted through the color resist block, the brightness of the display panel is non-uniform.

[0073] To this end, the orthographic projection of the pixel opening located below the overdeveloped color resist block on the driving backplate is located within the orthographic projection of the overdeveloped color resist block on the driving backplate, thereby improving the problem of the light emitted by the light emitting unit being directly emitted from the gap between the target color resist block and the adjacent color resist block, and further improving the problem of the brightness of the display panel being non-uniform.

[0074] FIG. 3 is a schematic diagram of a cross-sectional structure of a display panel according to an embodiment of the present application, and FIG. 4 is a schematic diagram of a planar structure of a display panel according to an embodiment of the present application. FIG. 3 is a schematic diagram of a cross-sectional structure along the AA cross-sectional line in FIG. 4. The display panel shown in FIGS. 3 and 4 can include a driving backplate 1, a pixel definition layer 2, a light emitting functional layer, and a color filter layer 4 located on the driving backplate 1. The driving backplate 1 has a plurality of sub-pixel regions 10.

[0075] The light emitting functional layer can include a plurality of light emitting units 30 corresponding to the plurality of sub-pixel regions 10. The orthographic projection of the plurality of light emitting units 30 on the driving backplate 1 is located within the corresponding plurality of sub-pixel regions 10.

[0076] The pixel definition layer 2 has a plurality of pixel openings 20 corresponding to the plurality of light emitting units 30. The orthographic projection of the pixel opening 20 on the driving backplate 1 overlaps the orthographic projection of the corresponding light emitting unit 30 on the driving backplate 1.

[0077] The color filter layer 4 is located on the side of the light emitting functional layer away from the driving backplate 1 and includes a plurality of color resist blocks 40 corresponding to the plurality of sub-pixel regions 10. The orthographic projection of the color resist block 40 on the driving backplate 1 is located within the corresponding sub-pixel region 10.

[0078] At least part of the color resist blocks 40 are target color resist blocks 400, the target color resist blocks 400 have a spacing with at least two adjacent color resist blocks 40, and at least one target color resist block 400 has a first side edge 400A and a second side edge 400B, and the spacing between the first side edge 400A and the adjacent color resist block 40 is greater than the spacing between the second side edge 400B and the adjacent color resist block. The center M400 of the orthographic projection of the target color resist block 400 on the driving backboard 1 has a spacing with the center M100 of the corresponding sub-pixel area, the plurality of pixel openings 20 correspond to the plurality of color resist blocks 40 respectively, and the orthographic projection of the pixel opening 20 on the driving backboard 1 is located in the orthographic projection of the corresponding color resist block 40 on the driving backboard 1.

[0079] In a possible embodiment, as shown in FIG. 4, the first side edge 400A is opposite to the second side edge 400B. In other possible embodiments, the first side edge 400A is adjacent to the second side edge 400B, or the first side edge 400A is neither adjacent to nor opposite to the second side edge 400B.

[0080] In the actual manufacturing process of the color film layer, some color resist blocks (target color resist blocks 400) may have overdevelopment problems, which causes the edge of the orthographic projection of the target color resist block 400 on the driving backboard 1 to be inwardly retracted from the edge of the corresponding sub-pixel area 10, thereby generating a spacing between the target color resist block 400 and the adjacent color resist block 40. By locating the orthographic projection of the pixel opening 20 on the driving backboard 1 in the orthographic projection of the corresponding color resist block 40 on the driving backboard 1, especially by locating the orthographic projection of the pixel opening 20 corresponding to the target color resist block 400 on the driving backboard 1 in the orthographic projection of the target color resist block 400 on the driving backboard 1, the problem that the light emitted by the light emitting unit 30 (as shown by the arrow in FIG. 3) directly passes through the spacing between the target color resist block 400 and the adjacent color resist block 40 is improved, and the problem of brightness non-uniformity of the display panel is improved.

[0081] In summary, the display panel provided by the embodiments of the present application includes a driving backboard, a pixel definition layer, a light emitting functional layer and a color film layer, and the driving backboard has a plurality of sub-pixel areas. In the actual manufacturing process of the plurality of color resist blocks in the color film layer, the edge of the orthographic projection of the target color resist block on the driving backboard is inwardly retracted from the edge of the corresponding sub-pixel area due to overdevelopment. By locating the orthographic projection of the pixel opening on the driving backboard in the orthographic projection of the corresponding color resist block on the driving backboard, especially by locating the orthographic projection of the pixel opening corresponding to the target color resist block on the driving backboard in the orthographic projection of the target color resist block on the driving backboard, the problem that the light emitted by the light emitting unit directly passes through the spacing between the target color resist block and the adjacent color resist block is improved, and the problem of brightness non-uniformity of the display panel is improved.

[0082] In the embodiments of the present application, as shown in FIG. 4, the plurality of pixel openings 20 can include a target pixel opening 200 corresponding to a target color resist block 400, and the plurality of sub-pixel regions 10 can include a target sub-pixel region 100 corresponding to the target color resist block 400.

[0083] In the embodiments of the present application, the center M400 of the orthographic projection of the at least one target color resist block 400 on the driving back plate 1 and the center of the orthographic projection of the target pixel opening 200 on the driving back plate 1 are located in the same direction of the center M100 of the target sub-pixel region 100.

[0084] In the embodiments of the present application, by moving the target pixel opening 200, and compared with the center M100 of the target sub-pixel region 100, the moving direction of the center of the target pixel opening 200 is the same as the offset direction of the center M400 of the target color resist block 400, so as to reduce the opening area of the target pixel opening 200 as much as possible without covering the target pixel opening 200 by the target color resist block 400, and to affect the light emitting efficiency. And the distance between the edge of the orthographic projection of the target pixel opening 200 on the driving back plate 1 and the edge of the orthographic projection of the target color resist block 400 on the driving back plate 1 can be as large as possible, so as to reduce the possibility of the light emitted by the light emitting unit 30 being emitted obliquely along the interval between the target color resist block 400 and the adjacent color resist block 40, thereby further improving the problem of display brightness unevenness.

[0085] In a possible embodiment, the center of the target pixel opening 200 coincides with the center of the orthographic projection of the target color resist block 400 on the driving back plate 1. In other possible embodiments, the center of the target pixel opening 200 can also not coincide with the center of the orthographic projection of the target color resist block 400 on the driving back plate 1.

[0086] In a possible embodiment, as shown in FIG. 3 and FIG. 4, the plurality of color resist blocks 40 can include first color resist blocks 41, second color resist blocks 42 and third color resist blocks 43 with different colors, wherein any two of the first color resist blocks 41, the second color resist blocks 42 and the third color resist blocks 43 are adjacent. The plurality of pixel openings 20 can include first pixel openings 21, second pixel openings 22 and third pixel openings 23, the first pixel openings 21 corresponding to the first color resist blocks 41, the second pixel openings 22 corresponding to the second color resist blocks 42, and the third pixel openings 23 corresponding to the third color resist blocks 43. For example, the color of the first color resist blocks 41 can be red, the color of the second color resist blocks 42 can be green, and the color of the third color resist blocks 43 can be blue.

[0087] Figure 5 is a partial enlarged view of Figure 4, and part (a) of Figure 5 is a partial enlarged view at the first color resist block 41, part (b) of Figure 5 is a partial enlarged view at the second color resist block 42, and part (c) of Figure 5 is a partial enlarged view at the third color resist block 43. Figure 6 is a schematic view of the degree of offset of the center of the normal projection of a different color resist block on the drive backplane relative to the center of the corresponding sub-pixel region, according to an embodiment of the present application. As shown in part (a) of Figure 5 and Figure 6, the distance between the center M41 of the normal projection of the first color resist block 41 on the drive backplane 1 and the center M11 of the corresponding sub-pixel region 10, i.e., the first sub-pixel region 11, is L1. As shown in part (b) of Figure 5 and Figure 6, the distance between the center of the normal projection of the second color resist block 42 on the drive backplane 1 and the center M12 of the corresponding sub-pixel region 10, i.e., the second sub-pixel region 12, is L2. As shown in part (c) of Figure 5 and Figure 6, the distance between the center M43 of the normal projection of the third color resist block 43 on the drive backplane 1 and the center M13 of the corresponding sub-pixel region 10, i.e., the third sub-pixel region 13, is L3. Since L2>L1 and L2>L3, among the first color resist block 41, the second color resist block 42, and the third color resist block 43, the degree of overdevelopment of the second color resist block 42 is the largest, and the center M42 of the normal projection of the second color resist block 42 on the drive backplane 1 is offset the most relative to the center of the corresponding sub-pixel region, i.e., the second sub-pixel region 12, so the light emitted by the light emitting unit located in the second sub-pixel region 12 has the greatest possibility of passing through the second sub-pixel opening 22 and directly emitting through the spacing between the second color resist block 42 and the adjacent color resist block.

[0088] Since the second color resist block 42 is the target color resist block 400, the center M42 of the orthographic projection of the second color resist block 42 on the driving back plate 1 in FIG. 5 and the center M12 of the sub-pixel region (the second sub-pixel region 12) corresponding to the second color resist block 42 are the center M400 of the orthographic projection of the target color resist block 400 on the driving back plate 1 in FIG. 4 and the center M100 of the sub-pixel region corresponding to the target color resist block 400. The center of the orthographic projection of the second pixel opening 22 on the driving back plate 1 is located on one side of the center of the sub-pixel region (the second sub-pixel region 12) corresponding to the second color resist block 42 in the first direction x, and the first direction x is the direction in which the center of the sub-pixel region (the second sub-pixel region 12) corresponding to the second color resist block 42 is directed towards the center M42 of the orthographic projection of the second color resist block 42 on the driving back plate 1. By moving the second pixel opening 22, and compared with the center of the second sub-pixel region 12, the moving direction of the center of the second pixel opening 22 is the same as the offset direction of the center of the second color resist block 42, so as to reduce the opening area of the second pixel opening 22 as much as possible without covering the second pixel opening 22 by the second color resist block 42, and affecting the light emitting efficiency. In the embodiment of the present application, the second pixel opening 22 is moved towards the first direction x, and the edge of the orthographic projection of the second pixel opening 22 on the driving back plate 1 is as far as possible from the edge of the orthographic projection of the second color resist block 42 on the driving back plate 1, so that the possibility of the light emitted by the light emitting unit 30 being obliquely emitted along the interval between the second color resist block 42 and the adjacent color resist block 40 can be reduced, thereby further improving the problem of display brightness unevenness.

[0089] It should be noted that in the embodiments shown in FIGS. 5 and 6, M13 can coincide with M43. In order to more clearly show the relative positional relationship between M11 and M41, M12 and M42, and M13 and M43 in FIG. 5, M11 and M41 are enlarged, M12 and M42 are enlarged, and M13 and M43 are enlarged in FIG. 6, the three are equal ratio enlargement, and M11, M12 and M13 are placed in the same position to better compare the relationship of L1, L2 and L3. Alternatively, L3 can be 0, so that only M13 coincides with M43 is shown in FIGS. 5 and 6, and L3 is not marked.

[0090] In a possible embodiment, as shown in FIGS. 4-6, L1>L3, the first color resist block 41 can also be the target color resist block 400. The center M41 of the orthographic projection of the first color resist block 41 on the driving back plate 1 is located on the side away from the center M11 of the sub-pixel region 10 (the first sub-pixel region 11) corresponding to the first color resist block 41. The center M42 of the orthographic projection of the second color resist block 42 on the driving back plate 1 is located on the side away from the center M12 of the sub-pixel region 10 (the second sub-pixel region 12) corresponding to the second color resist block 42, and away from the center M41 of the orthographic projection of the first color resist block 41 on the driving back plate 1. Therefore, the offset direction x1 of the center M41 of the orthographic projection of the first color resist block 41 on the driving back plate 1 is different from the offset direction (the first direction x) of the center M42 of the orthographic projection of the second color resist block 42 on the driving back plate 1. The center of the orthographic projection of the first pixel opening 21 on the driving back plate 1 is located on the side away from the center of the sub-pixel region 10 corresponding to the first color resist block 41.

[0091] In the embodiment, the first pixel opening 21 is moved in the direction x1, which is also the offset direction of the center of the first pixel opening 21, to reduce the opening area of the first pixel opening 21 as little as possible without covering the first pixel opening 21 by the first color resist block 41, thereby affecting the light emitting efficiency. That is, under the premise of ensuring the opening area of the first pixel opening 21, the first pixel opening 21 is moved to be covered by the first color resist block 41, thereby ensuring the light emitting efficiency.

[0092] In summary, in the embodiment, the first pixel opening 21 is moved in the direction x1, and the distance between the edge of the orthographic projection of the first pixel opening 21 on the driving back plate 1 and the edge of the orthographic projection of the first color resist block 41 on the driving back plate 1 is as large as possible, thereby reducing the possibility of the light emitted by the light emitting unit 30 being emitted obliquely along the distance between the first color resist block 41 and the adjacent color resist block 40, and further improving the problem of display brightness unevenness.

[0093] It should be noted that the specified position is the position of the rotation axis of the display panel during the process of forming the color filter layer 4 on the side away from the driving back plate 1. That is, the specified position is the position of the rotation axis in the rotation development process of manufacturing the color filter layer. In the embodiments shown in FIGS. 4 and 5, the specified position is located below the plurality of color resist blocks. For example, a plurality of display panels are usually manufactured on one substrate, and the position of the rotation axis is generally the center of the substrate.

[0094] Exemplarily, the plurality of pixel openings 20 can include a target pixel opening 200 corresponding to the target color-resistance block 400, and a distance between an edge of a projection of the target pixel opening 200 on the driving backplate 1 and an edge of a projection of the target color-resistance block 400 on the driving backplate 1 is greater than 0.1 microns. For example, in the embodiment shown in FIG. 3, a distance d between an edge of a projection of the second pixel opening 22 on the driving backplate 1 and an edge of a projection of the second color-resistance block 42 on the driving backplate 1 is greater than or equal to 0.1 microns, so as to avoid light emitted by the light-emitting unit from being obliquely emitted through a gap between the target color-resistance block 400 and an adjacent color-resistance block, thereby improving the problem of brightness non-uniformity of the display panel.

[0095] Exemplarily, a ratio of an area of a projection of the target color-resistance block 400 on the driving backplate 1 to an area of the sub-pixel region corresponding to the target color-resistance block 400 is greater than or equal to 0.7. If the target color-resistance block 400 is too small, and the projection of the target pixel opening 200 on the driving backplate 1 is located within the projection of the target color-resistance block 400 on the driving backplate 1, it is necessary not only to move a position of a center of a pixel opening originally located below the target color-resistance block 400 to form the target pixel opening 200, but also to reduce an opening area of the pixel opening, so as to enable the projection of the target pixel opening 200 on the driving backplate 1 to be located within the projection of the target color-resistance block 400 on the driving backplate 1, which affects light-emitting efficiency of light emitted by the light-emitting unit located below the target color-resistance block 400. As shown in FIG. 4, a ratio of an area of a projection of the second color-resistance block 42 on the driving backplate 1 to an area of the second sub-pixel region 12 is greater than or equal to 0.7, so as to avoid reducing the opening area of the second pixel opening 22 in order to enable the projection of the second pixel opening 22 on the driving backplate 1 to be located within the projection of the second color-resistance block 42 on the driving backplate 1, thereby reducing the influence on the light-emitting efficiency.

[0096] Exemplarily, as shown in FIG. 3, the display panel can further include a CT layer (Coating Layer, covering layer) 7 located on a side of the color film layer 4 away from the driving backplate 1, and the CT layer 7 can be in direct contact with the side of the color film layer 4 away from the driving backplate 1. The CT layer 7 is made of transparent organic material, and can be filled in a gap between the target color-resistance block 400 and an adjacent color-resistance block to play a role of filling, and the CT layer 7 can also be referred to as an OC layer (Over Coating Layer, planar layer).

[0097] Exemplarily, as shown in FIG. 3, the display unit 30 of the display panel can include a first electrode 31, a light-emitting layer 32 and a second electrode 33 which are sequentially stacked on the driving backplane 1. Optionally, a plurality of second electrodes 33 are connected to form an integral structure. Optionally, the first electrode 31 is an anode, and the second electrode 33 is a cathode, or the first electrode 31 is a cathode, and the second electrode 33 is an anode. Optionally, a plurality of light-emitting layers 32 are connected to form an integral structure. Due to the design of the plurality of first electrodes 31 and the pixel definition layer 2, the plurality of light-emitting layers 32 connected to form an integral structure exist at the edges of the sub-pixel area 10, and the lateral conductivity is low, so the lateral crosstalk of the plurality of light-emitting layers 32 connected to form an integral structure is small.

[0098] Exemplarily, as shown in FIG. 3, the display panel can further include at least one encapsulation layer 5, and the at least one encapsulation layer 5 is located between the light-emitting functional layer and the color filter layer 4.

[0099] For example, the number of encapsulation layers 5 is multiple, and the multiple encapsulation layers 5 can include at least one inorganic encapsulation layer and at least one organic encapsulation layer which are stacked. As shown in FIG. 3, the multiple encapsulation layers 5 include a first encapsulation layer 51, a second encapsulation layer 52 and a third encapsulation layer 53 which are sequentially stacked on the driving backplane 1, wherein the first encapsulation layer 51 and the third encapsulation layer 53 are inorganic encapsulation layers, and the second encapsulation layer 52 is an organic encapsulation layer to play a flattening role.

[0100] Exemplarily, as shown in FIG. 3, the distance between the edge of the normal projection of the target color blocking block 400 (for example, the second color blocking block 42) on the driving backplane 1 and the edge of the corresponding sub-pixel area 10 is 0.05 microns to 0.56 microns.

[0101] Exemplarily, as shown in FIG. 3, the pixel definition layer 2 can include a first part of the pixel definition layer, a second part of the pixel definition layer and a third part of the pixel definition layer which are connected, the normal projection of the first part of the pixel definition layer on the driving backplane 1 is located between the normal projections of the two adjacent first electrodes 31 on the driving backplane 1, and the normal projections of the second part of the pixel definition layer on the driving backplane 1 and the normal projections of the third part of the pixel definition layer on the driving backplane 1 are respectively located in the normal projections of the two adjacent first electrodes 31 on the driving backplane 1. In the arrangement direction of the two adjacent first electrodes 31, the distance between the two adjacent first electrodes 31 is 0.2 microns to 1.0 microns, the size of the second part of the pixel definition layer is 0.1 microns to 0.5 microns, and the size of the third part of the pixel definition layer is 0.1 microns to 0.5 microns.

[0102] In a possible embodiment, as shown in FIGS.4 and 5, the plurality of color resist blocks 40 can include a plurality of first color resist blocks 41, a plurality of second color resist blocks 42, and a plurality of third color resist blocks 43, the plurality of sub-pixel regions 10 are arranged along a second direction x2 and a third direction x3, the second direction x2 is a direction in which a sub-pixel region corresponding to the first color resist block 41 (i.e., a first sub-pixel region 11) faces a sub-pixel region corresponding to the second color resist block 42 (i.e., a second sub-pixel region 12), the third direction x3 is a direction in which a sub-pixel region corresponding to the third color resist block 43 (i.e., a third sub-pixel region 13) faces the sub-pixel region corresponding to the second color resist block 42 (i.e., the second sub-pixel region 12), and a shape of the sub-pixel region can be a hexagon as shown in FIGS.4 and 5.

[0103] FIG.7 is a schematic diagram of a planar structure of another display panel provided in an embodiment of the present application. In other possible embodiments, as shown in FIG.7, a shape of the sub-pixel region can be a rectangle. Each row of color resist blocks includes a plurality of color resist blocks arranged along the second direction x2, and the plurality of color resist blocks of adjacent two rows are staggered. Whether the shape of the sub-pixel region is a hexagon or a rectangle, the overdeveloped target color resist block 400 can occur. Embodiments of the present application are applicable to display panels with different shapes of sub-pixel regions to improve the problem of non-uniform brightness of the display panel.

[0104] In the embodiments shown in FIGS.4 to 6, or in the embodiment shown in FIG.7, since the three color resist blocks 40 are sequentially formed in an actual manufacturing process, by L2>L1, L2>L3, it can be determined that the second color resist block 42 with the largest overdevelopment degree and the largest center offset relative to the corresponding sub-pixel region 10 is the second manufactured color resist block 40. Therefore, the manufacturing order of the color resist blocks 40 can be adjusted so that the overdevelopment degree of a certain color resist block 40 is the largest and the center of the corresponding sub-pixel region 10 is offset the most, and thus the center of the corresponding certain pixel opening 20 is offset the most relative to the center of the corresponding sub-pixel region 10. Since the second manufactured color resist block 40 can have an overdevelopment degree that is too large, if only the center of the corresponding pixel opening is moved in the first direction x, the second manufactured color resist block 40 can still not cover the corresponding pixel opening 20, and thus the opening area of the corresponding pixel opening needs to be reduced, which will affect the light extraction efficiency. Therefore, in a display panel including, for example, red sub-pixels, green sub-pixels, and blue sub-pixels, the color resist block in the sub-pixel with higher light extraction efficiency can be set as the second manufactured color resist block to make the brightness of light of each color emitted by the display panel as uniform as possible.

[0105] In the embodiment shown in Figs. 4-6, or in the embodiment shown in Fig. 7, by L2>L1>L3, the overdevelopment degree of the second color resist blocks 42 is the largest, the overdevelopment degree of the first color resist blocks 41 is the second, and the overdevelopment degree of the third color resist blocks 43 is smaller or even negligible, so it can be known that the first color resist blocks 41, the second color resist blocks 42 and the third color resist blocks 43 are sequentially formed.

[0106] Firstly, the relationship between the manufacturing order of the color resist blocks and the overdevelopment degree is described in detail with the embodiment in which the shape of the sub-pixel region is hexagonal and the multiple color resist blocks of the adjacent two rows are staggered arranged as an example. Fig. 8 is a process schematic diagram of sequentially manufacturing multiple first color resist blocks, multiple second color resist blocks and third color resist blocks according to an embodiment of the present application, as shown in Fig. 8:

[0107] Firstly, the relationship between the manufacturing order of the color resist blocks and the overdevelopment degree is described in detail with the embodiment in which the shape of the sub-pixel region is hexagonal and the multiple color resist blocks of the adjacent two rows are staggered arranged as an example. Fig. 8 is a process schematic diagram of sequentially manufacturing multiple first color resist blocks, multiple second color resist blocks and third color resist blocks according to an embodiment of the present application, as shown in Fig. 8:

[0108] It should be noted that the position of the rotation axis O is only schematically shown in the part (a) of FIG. 8, and the relative position of the rotation axis O and the color resist blocks is only schematic. In actual production, since a large number of display panels are processed at the same time, and the color resist blocks are small, in most cases, the distance between the color resist blocks and the rotation axis O is far for the local color resist blocks. Therefore, for the color resist blocks schematically shown in the left, the middle and the right in the part (a) of FIG. 8, the washing directions of the developing solution can be approximately regarded as parallel, and all are from bottom to top.

[0109] In the second step, the second color resist material is coated on all the sub-pixel regions, and then the whole layer of the second color resist material is sequentially subjected to an exposure process and a rotary developing process. In the exposure process, only the second color resist material in the second sub-pixel region 12 is photocured. In the rotary developing process, the developing solution first dissolves the second color resist material which is not photocured, forming a plurality of second color resist blocks 42 as shown in the part (c) of FIG. 8. The edge of the orthographic projection of each second color resist block 42 on the driving backplane is completely coincident with the edge of the corresponding second sub-pixel region 12. However, as the developing solution continues to wash, the impact force of the developing solution on the left side edge, the lower left side edge and the right side edge of the second color resist block 42 is larger, forming a plurality of second color resist blocks 42 as shown in the part (d) of FIG. 8. Among them, the left side edge of the second color resist block 42 has a spacing with the right side edge of the first color resist block 41 on the left, so the flow rate of the developing solution here is larger, and the washing force is greater. Therefore, compared with the lower left side edge of the second color resist block 42, the overdevelopment degree of the left side edge of the second color resist block 42 is larger. For the right side edge of the second color resist block 42, since the first color resist block 41 located below the right side of the second color resist block 42 plays a role in hindering the developing solution from washing the right side edge of the second color resist block 42, the washing force of the developing solution on the right side edge of the second color resist block 42 is smaller. Therefore, compared with the lower left side edge of the second color resist block 42, the overdevelopment degree of the right side edge of the second color resist block 42 is smaller. Therefore, the overdevelopment degree of the left side edge, the overdevelopment degree of the lower left side edge and the overdevelopment degree of the right side edge of the second color resist block 42 decrease in turn. The lower right side edge of the second color resist block 42 is connected with the upper left side edge of the first color resist block 41, so the lower right side edge of the second color resist block 42 will not be excessively washed by the developing solution.

[0110] Exemplarily, as shown in the part (d) of FIG. 8, the left side of the second color resist block 42 is the first side 400A, and the right side is the second side 400B, and the first side 400A and the second side 400B are opposite. Alternatively, in the embodiment shown in the part (d) of FIG. 8, the left side of the second color resist block 42 can also be regarded as the first side, and the lower left side can be regarded as the second side, and at this time, the first side and the second side are adjacent. Alternatively, in the embodiment shown in the part (d) of FIG. 8, the lower left side of the second color resist block 42 can also be regarded as the first side, and the right side can be regarded as the second side, and at this time, the first side and the second side are neither opposite nor adjacent.

[0111] According to the experimental results, it is found that the flow rate and scouring degree of the developing solution at the interval between the left side of the second color resist block 42 and the right side of the first color resist block 41 play a leading role in the over-development degree of the second color resist block 42, so the over-development degree of the second color resist block 42 produced secondly is greater than that of the first color resist block 41 produced firstly. In combination with FIGS. 6 and 8, the center M42 of the orthographic projection of the second color resist block 42 on the driving backboard deviates from the center M12 of the second sub-pixel region 12 in the direction away from the specified position (i.e., the rotation axis O) and away from the first color resist block 41. And the center of the orthographic projection of the second color resist block 42 on the driving backboard deviates from the center of the second sub-pixel region 12 by a distance L2 greater than L1.

[0112] Thirdly, a third color resist block material is coated on all the sub-pixel regions, and then the whole third color resist block material is subjected to an exposure process and a rotary developing process. In the exposure process, only the third color resist block material in the third sub-pixel region 13 is photocured. In the rotary developing process, the developing solution first dissolves the third color resist block material which is not photocured, and forms a plurality of third color resist blocks 43 as shown in part (e) of FIG. 8. The edge of the orthographic projection of each third color resist block 43 on the driving backplane is completely coincident with the edge of the corresponding third sub-pixel region 13. With the continuous flushing of the developing solution, although the third color resist block 43 has a spacing with the second color resist block 42 on the left, the first color resist block 41 below and left of the third color resist block 43 plays a role of hindering the developing solution from flushing the left side edge of the third color resist block 43, and the first color resist block 41 below and left of the third color resist block 43, the first color resist block 41 above and left of the third color resist block 43, and the second color resist block 42 on the left of the third color resist block 43 enclose a closed figure, so that the flow rate of the developing solution is small at this position, and the left side edge of the third color resist block 43 is almost not excessively flushed by the developing solution. Although the third color resist block 43 has a spacing with the first color resist block 41 on the right, the right side edge of the third color resist block 43 is almost not excessively flushed by the developing solution for the same reason as the left side edge. The lower left side edge of the third color resist block 43 is not excessively flushed by the developing solution because it is connected to the upper right side edge of the first color resist block 41. The lower right side edge of the third color resist block 43 is not excessively flushed by the developing solution because it is connected to the upper left side edge of the second color resist block 42. Therefore, the various side edges of the third color resist block 43 are almost not excessively developed, and the center of the orthographic projection of the third color resist block 43 on the driving backplane is almost not offset from the center of the third sub-pixel region 13.

[0113] The relationship between the manufacturing sequence of the color resist blocks and the degree of overdevelopment is described in detail below with the example of an embodiment in which the shapes of the sub-pixel regions are rectangular and the color resist blocks in adjacent rows are staggered. FIG. 9 is a process diagram of another embodiment in which a plurality of first color resist blocks, a plurality of second color resist blocks, and third color resist blocks are manufactured in sequence. As shown in FIG. 9:

[0114] In the first step, similarly to the part (a) of FIG. 8, a plurality of first color resist blocks 41 are formed as shown in the part (a) of FIG. 9, each of the first color resist blocks 41 having an edge of a normal projection of the first color resist block 41 on the driving back plate completely coinciding with an edge of the corresponding first sub-pixel region 11. However, as the developing liquid continues to wash, assuming that the rotation axis O is located below the part (a) of FIG. 9, the developing liquid has a greater impact force on the left side edge, the lower side edge and the right side edge of the first color resist block 41, and the first color resist block 41 has an over-development phenomenon at these side edges, thereby forming a plurality of first color resist blocks 41 as shown in the part (b) of FIG. 8. In combination with FIG. 7 and FIG. 9, the center of the normal projection of the first color resist block 41 on the driving back plate is offset from the center of the first sub-pixel region 11 in a direction away from the specified position (i.e., the rotation axis O). It should be noted that the position of the rotation axis O is only schematically shown in the part (a) of FIG. 9.

[0115] In the second step, similar to the part (c) of Fig. 8, a plurality of second color resist blocks 42 are formed as shown in the part (c) of Fig. 9, and the edges of the orthographic projection of each second color resist block 42 on the driving backboard completely coincide with the edges of the corresponding second sub-pixel region 12. However, as the developing liquid continues to wash, the impact of the developing liquid on the left side edge, the lower left end and the right side edge of the second color resist block 42 is greater, and a plurality of second color resist blocks 42 are formed as shown in the part (d) of Fig. 9. Among them, the left side edge of the second color resist block 42 has a spacing with the right side edge of the first color resist block 41 on the left, and the flow rate of the developing liquid at this position is greater, so the washing degree is greater, and therefore the overdevelopment degree of the left side edge of the second color resist block 42 is greater than that of the lower left end of the second color resist block 42; for the right side edge of the second color resist block 42, the first color resist block 41 located at the lower right of the second color resist block 42 plays a role of hindering the developing liquid from washing the right side edge of the second color resist block 42, and the washing degree of the developing liquid on the right side edge of the second color resist block 42 is smaller, so the overdevelopment degree of the right side edge of the second color resist block 42 is smaller than that of the lower left end of the second color resist block 42. Therefore, the overdevelopment degree of the left side edge, the overdevelopment degree of the lower left end and the overdevelopment degree of the right side edge of the second color resist block 42 decrease in turn. The right end of the lower side edge of the second color resist block 42 is connected with the left upper side edge of the first color resist block 41, so the right end of the lower side edge of the second color resist block 42 will not be excessively washed by the developing liquid. Exemplarily, as shown in the part (d) of Fig. 9, the left side edge of the second color resist block 42 is a first side edge 400A, and the right side edge is a second side edge 400B, and the first side edge 400A and the second side edge 400B are opposite. Alternatively, in the embodiment shown in the part (d) of Fig. 9, the left side edge of the second color resist block 42 can also be regarded as a first side edge, and the lower left end can be regarded as a second side edge, and at this time the first side edge and the second side edge are adjacent. Alternatively, in the embodiment shown in the part (d) of Fig. 9, the lower left end of the second color resist block 42 can also be regarded as a first side edge, and the right side edge can be regarded as a second side edge, and at this time the first side edge and the second side edge are neither adjacent nor opposite.

[0116] According to the experimental results, it is found that the flow rate of the developing liquid is greater and the washing degree is greater at the spacing between the left side edge of the second color resist block 42 and the right side edge of the first color resist block 41, and this factor plays a leading role in the overdevelopment degree of the second color resist block 42, so the overdevelopment degree of the second color resist block 42 produced in the second production is greater than that of the first color resist block 41 produced in the first production. In combination with Fig. 7 and Fig. 9, the center of the orthographic projection of the second color resist block 42 on the driving backboard deviates from the center of the second sub-pixel region 12 in the direction away from the specified position (i.e. the rotation axis O) and away from the first color resist block 41. And the center of the orthographic projection of the second color resist block 42 on the driving backboard deviates from the center of the second sub-pixel region 12 by a distance L2 which is greater than L1.

[0117] In the third step, similar to the part (e) of Fig. 8, a plurality of third color resist blocks 43 are formed as shown in the part (e) of Fig. 9. The edges of the orthographic projection of each third color resist block 43 on the driving backplane completely coincide with the edges of the corresponding third sub-pixel region 13. As the developer continues to wash, although there is a gap between the third color resist block 43 and the second color resist block 42 on the left, the first color resist block 41 located at the lower left of the third color resist block 43 plays a role of hindering the developer from washing the left side edge of the third color resist block 43, and the first color resist block 41 located at the lower left of the third color resist block 43, the first color resist block 41 located at the upper left of the third color resist block 43, and the second color resist block 42 located on the left of the third color resist block 43 enclose a closed figure, so the flow rate of the developer at this position is small, and the left side edge of the third color resist block 43 is almost not excessively washed by the developer. Although there is a gap between the third color resist block 43 and the first color resist block 41 on the right, the right side edge of the third color resist block 43 is almost not excessively washed by the developer for the same reason as the left side edge. Since the lower left end of the third color resist block 43 is connected to the first color resist block 41, and the right end of the lower side of the third color resist block 43 is connected to the second color resist block 42, the lower left end and the right end of the lower side of the third color resist block 43 are both not excessively washed by the developer. Therefore, the third color resist block 43 is almost not prone to overdevelopment, and the center of the orthographic projection of the third color resist block 43 on the driving backplane is almost not offset from the center of the third sub-pixel region 13.

[0118] In summary, in the embodiment in which the shape of the sub-pixel region is a hexagon (as shown in Fig. 4 and Fig. 8), or in the embodiment in which the shape of the sub-pixel region is a rectangle (as shown in Fig. 7 and Fig. 9), the overdevelopment of the second color resist block is the most serious, the overdevelopment of the first color resist block is the second most serious, and the third color resist block is almost not prone to overdevelopment. Moreover, the greater the overdevelopment of the color resist block, the greater the distance between the center of the orthographic projection of the color resist block on the driving backplane and the center of the corresponding sub-pixel region. Therefore, the order of the manufacture of the color resist blocks can be determined according to the comparison of the distances between the center of the orthographic projection of the color resist blocks on the driving backplane and the center of the corresponding sub-pixel region. Similarly, the distances between the center of the orthographic projection of the color resist blocks on the driving backplane and the center of the corresponding sub-pixel region can also be determined according to the order of the manufacture of the color resist blocks.

[0119] In the embodiment shown in Fig. 4 and Fig. 8, or in the embodiment shown in Fig. 7 and Fig. 9, due to the influence of overdevelopment, the center of the first color resist block 41 is offset away from the specified position (the rotation axis O), and the center of the second color resist block 42 is offset away from the specified position and away from the first color resist block 41.

[0120] FIG. 10 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present application. As shown in FIG. 10, L1>L3, and the first color block 41 can also be the target color block 400. The center of the orthographic projection of the first pixel opening 21 on the driving backplane 1 is located on one side of the center M11 of the first sub-pixel region 11 in the first direction x, and the center of the orthographic projection of the third pixel opening 23 on the driving backplane is located on one side of the center of the third sub-pixel region 13 in the first direction x.

[0121] In the embodiments shown in FIG. 5 and FIG. 10, the center M41 of the orthographic projection of the first color block 41 on the driving backplane is located on one side of the center M11 of the first sub-pixel region 11 in the x1 direction, and the center M43 of the orthographic projection of the third color block 43 on the driving backplane coincides with the center M13 of the third sub-pixel region 13. In the embodiment shown in FIG. 5, the center of the orthographic projection of the first pixel opening 21 on the driving backplane is located on one side of M11 in the x1 direction, and in the embodiment shown in FIG. 10, the center of the orthographic projection of the first pixel opening 21 on the driving backplane is located on one side of M11 in the first direction x, and the center of the orthographic projection of the third pixel opening 23 on the driving backplane is located on one side of M13 in the first direction x.

[0122] In an ideal design, the center of the sub-pixel region, the center of the orthographic projection of the pixel opening on the driving backplane (as shown by the dashed circle in FIG. 10), and the center of the orthographic projection of the color block on the driving backplane coincide, and the distance d1' between any two adjacent pixel openings in the second direction x2 is the same, and the distance d2' between any two adjacent pixel openings in the third direction x3 is the same, and under this condition, the viewing angle uniformity of the display panel is better, and d1' and d2' are both critical dimensions (CD values). If only the second pixel opening 22 is moved in the first direction x without synchronously moving the first pixel opening 21 and the third pixel opening 23 in the first direction x, for example, the first pixel opening 21 is moved in the x1 direction but the third pixel opening 23 is not moved, this will result in a large difference between the d1 value between adjacent first pixel openings 21 and second pixel openings 22, the d1 value between adjacent second pixel openings 22 and third pixel openings 23, and the d1 value between adjacent third pixel openings 23 and first pixel openings 21 in the second direction x2, compared with the d1' in the ideal design, thereby resulting in poor viewing angle uniformity of the display panel. The same is true in the third direction x3, which will not be described here.

[0123] In the embodiment, the first pixel opening 21 and the third pixel opening 23 are also moved to the first direction x on the basis of moving the second pixel opening 22 to the first direction x, so that the difference between the CD value in the embodiment and the CD value in the ideal design can be reduced as much as possible, thereby facilitating the improvement of the viewing angle uniformity of the display panel. Here, the CD value in the embodiment includes the distance d1 between two adjacent pixel openings in the second direction x2 and the distance d2 between two adjacent pixel openings in the third direction x3.

[0124] In other possible embodiments, the center of the orthographic projection of the first pixel opening 21 on the driving back plate is located on one side of the center M11 of the first sub-pixel region 11 corresponding to the first color resistance block 41 in the first direction x, or the center of the orthographic projection of the third pixel opening 23 on the driving back plate is located on one side of the center of the third sub-pixel region 13 in the first direction x. Compared with moving only the second pixel opening 22 to the first direction x, moving one of the first pixel opening 21 and the third pixel opening 23 to the first direction x at the same time can reduce the difference between the CD value in the embodiment and the CD value in the ideal design as much as possible, thereby facilitating the improvement of the viewing angle uniformity of the display panel.

[0125] For example, in the embodiment shown in FIG. 10, the distance d1 between any two adjacent pixel openings in the second direction x2 is the same, and the distance d2 between any two adjacent pixel openings in the third direction x3 is the same. On the basis that the center of the orthographic projection of the second pixel opening 22 on the driving back plate is offset relative to the center of the second sub-pixel region 12, the position of the center of the orthographic projection of the first pixel opening 21 on the driving back plate relative to the center of the first sub-pixel region 11 and the position of the center of the orthographic projection of the third pixel opening on the driving back plate relative to the center of the third sub-pixel region 13 are adjusted, so that the distance d1 between any two adjacent pixel openings in the second direction x2 is the same, and the distance d2 between any two adjacent pixel openings in the third direction x3 is the same, thereby improving the display uniformity of the display panel as much as possible.

[0126] FIG. 11 is a schematic view of a cross-sectional structure of another display panel provided in an embodiment of the present application, and FIG. 11 is a schematic view of a cross-sectional structure of FIG. 10 along the BB cross-sectional line. As shown in FIG. 10 and FIG. 11, the display panel can further include a plurality of lens structures 60 located on the side of the color film layer 4 away from the driving back plate 1, the plurality of lens structures 60 correspond to the plurality of color resistance blocks 40, and the orthographic projection of the lens structure 60 on the driving back plate 1 at least partially overlaps the orthographic projection of the corresponding color resistance block 40 on the driving back plate 1.

[0127] The plurality of lens structures 60 can include a first lens structure corresponding to the first color block 41, a second lens structure corresponding to the second color block 42, and a third lens structure corresponding to the third color block 43. A center of a normal projection of the second lens structure on the drive back plate 1 coincides with a center of a normal projection of the second pixel opening 22 on the drive back plate 1. The arrangement of the plurality of lens structures 60 is conducive to improving light extraction efficiency. Since the center M42 of the normal projection of the second color block 42 on the drive back plate 1 is offset from the center of the second sub-pixel region 12 by the largest distance, the corresponding center of the normal projection of the second pixel opening 22 on the drive back plate 1 is also offset from the center of the second sub-pixel region 12 by a relatively large distance. By making the center of the normal projection of the second lens structure on the drive back plate 1 coincide with the center of the normal projection of the second pixel opening 22 on the drive back plate 1, the viewing angle uniformity can be improved.

[0128] In one possible embodiment, as shown in FIGS. 10 and 11, the center of the normal projection of the first lens structure on the drive back plate 1 coincides with the center of the normal projection of the first pixel opening 21 on the drive back plate 1, and the center of the normal projection of the third lens structure on the drive back plate 1 coincides with the center of the normal projection of the third pixel opening 23 on the drive back plate 1. On the basis of also moving the first pixel opening 21 and the third pixel opening 23 in the first direction x together with the second pixel opening 22, by making the center of the normal projection of the first lens structure on the drive back plate 1 coincide with the center of the normal projection of the first pixel opening 21 on the drive back plate 1, and the center of the normal projection of the third lens structure on the drive back plate 1 coincide with the center of the normal projection of the third pixel opening 23 on the drive back plate 1, the viewing angle uniformity can be further improved.

[0129] In another possible embodiment, the center of the normal projection of the first lens structure on the drive back plate 1 coincides with the center of the normal projection of the first pixel opening 21 on the drive back plate 1. In another possible embodiment, the center of the normal projection of the third lens structure on the drive back plate 1 coincides with the center of the normal projection of the third pixel opening 23 on the drive back plate 1.

[0130] FIG. 12 is a schematic view of a planar structure of another display panel according to an embodiment of the present application. As shown in FIG. 12, the edge of the orthographic projection of the first color block 41 on the driving backplate 1 coincides with the edge of the first sub-pixel region 11 corresponding to the first color block 41, and the edge of the orthographic projection of the third color block 43 on the driving backplate 1 coincides with the edge of the third sub-pixel region 13 corresponding to the third color block 43. As known from the foregoing, the overdevelopment degree of the second color block is the largest, the overdevelopment degree of the first color block is the second, and the overdevelopment degree of the third color block is almost zero. By making the edge of the orthographic projection of the first color block 41 on the driving backplate 1 coincide with the edge of the first sub-pixel region 11, and making the edge of the orthographic projection of the third color block 43 on the driving backplate 1 coincide with the edge of the third sub-pixel region 13, i.e., by compensating the first color block, when the second color block is manufactured, the distance between the second color block and the first color block (e.g., the first color block 41) is zero, so the developing solution cannot flow between the second color block and the adjacent first color block, and the phenomenon that the developing solution has a large washing force between the second color block and the adjacent first color block does not occur, thereby avoiding the overdevelopment of the second color block near the adjacent first color block, so as to retain as many second color blocks as possible, and reduce the possibility that the light emitted by the light emitting unit directly passes through the distance between the second color block and the adjacent color block.

[0131] In a possible embodiment, as shown in FIG. 12, the center of the orthographic projection of the first pixel opening 21 on the driving backplate is located on one side of the center M11 of the first sub-pixel region 11 corresponding to the first color block 41 in the first direction x, and the center of the orthographic projection of the third pixel opening 23 on the driving backplate is located on one side of the center of the third sub-pixel region 13 in the first direction x. By moving the first pixel opening 21 and the third pixel opening 23 to the first direction x on the basis of moving the second pixel opening 22 to the first direction x, the difference between the CD value in the embodiment of the present application and the CD value in the ideal design can be reduced as much as possible, thereby facilitating the improvement of the viewing angle uniformity of the display panel.

[0132] In other possible embodiments, the center of the orthographic projection of the first pixel opening 21 on the driving back plate is located on one side of the center M11 of the first sub-pixel region 11 corresponding to the first color blocking block 41 in the first direction x; or the center of the orthographic projection of the third pixel opening 23 on the driving back plate is located on one side of the center of the third sub-pixel region 13 in the first direction x. Compared with moving only the second pixel opening 22 to the first direction x, moving one of the first pixel opening 21 and the third pixel opening 23 to the first direction x at the same time can minimize the difference between the CD value in the embodiment of the present application and the CD value in the ideal design, thereby facilitating the improvement of the viewing angle uniformity of the display panel.

[0133] The following takes an embodiment in which the shape of the sub-pixel region is a hexagon as an example, and describes the over-development degree of different color blocking blocks by compensating the first manufactured color blocking block. FIG. 13 is a process schematic diagram of another process of sequentially manufacturing a plurality of first color blocking blocks, a plurality of second color blocking blocks and third color blocking blocks according to an embodiment of the present application. As shown in FIG. 13:

[0134] In the first step, assuming that the rotation axis O is located below part (a) of FIG. 13, similar to part (a) of FIG. 8, the first color blocking block material of the entire layer first undergoes an exposure process to form a plurality of first color blocking blocks 41 as shown in part (a) of FIG. 13, but the first color blocking blocks 41 are compensated so that the left side edge, the lower left side edge, the lower right side edge and the right side edge of the first color blocking blocks 41 after photocuring all exceed the range of the first sub-pixel region 11. In the spin development process, the impact force of the developing solution on the left side edge, the lower left side edge, the lower right side edge and the right side edge of the first color blocking blocks 41 is large, and the first color blocking blocks 41 will appear over-development at these side edges, thereby forming a plurality of first color blocking blocks 41 as shown in part (b) of FIG. 13, and the edge of the orthographic projection of the first color blocking blocks 41 on the driving back plate 1 coincides with the edge of the first sub-pixel region 11. It should be noted that the position of the rotation axis O is only schematically shown in part (a) of FIG. 13.

[0135] In the second step, similar to the part (c) of FIG. 8, a plurality of second color resist blocks 42 are formed as shown in the part (c) of FIG. 13. The edges of the orthographic projection of each second color resist block 42 on the driving back plate completely coincide with the edges of the corresponding second sub-pixel region 12. However, as the developing liquid continues to wash, the impact of the developing liquid on the lower left side and the right side of the second color resist block 42 is greater, and a plurality of second color resist blocks 42 are formed as shown in the part (d) of FIG. 13. Compared with the lower left side of the second color resist block 42, the developing liquid has a smaller washing strength on the right side of the second color resist block 42 because the first color resist block 41 located at the lower right of the second color resist block 42 hinders the developing liquid from washing the right side of the second color resist block 42, and thus the over-development degree of the right side of the second color resist block 42 is smaller. For example, as shown in the part (d) of FIG. 13, the lower left side of the second color resist block 42 is a first side 400A, and the right side is a second side 400B. The first side 400A and the second side 400B are neither opposite nor adjacent.

[0136] In the third step, similar to the part (e) of FIG. 8, a plurality of third color resist blocks 43 are formed as shown in the part (e) of FIG. 13. The edges of the orthographic projection of each third color resist block 43 on the driving back plate completely coincide with the edges of the corresponding third sub-pixel region 13. As the developing liquid continues to wash, although the third color resist block 43 has a spacing with the left second color resist block 42, the first color resist block 41 located at the lower left of the third color resist block 43 hinders the developing liquid from washing the left side of the third color resist block 43, and the first color resist block 41 located at the lower left of the third color resist block 43, the first color resist block 41 located at the upper left of the third color resist block 43, and the second color resist block 42 located at the left of the third color resist block 43 form a closed figure, so the flow rate of the developing liquid is smaller at this position, and the left side of the third color resist block 43 is almost not over-washed by the developing liquid, and thus the over-development problem of each side of the third color resist block 43 formed in the third step is almost not caused.

[0137] FIG. 14 is a schematic diagram of a planar structure of another display panel provided by an embodiment of the present application. As shown in FIG. 14, in the embodiment in which the sub-pixel region is rectangular, the first manufactured color resist block can also be compensated. In the embodiment shown in FIG. 14, the center of the orthographic projection of the second color resist block 42 on the driving back plate 1 is located away from the specified position and close to one side of the first color resist block M41 at the center of the second sub-pixel region 12, that is, the center of the second color resist block 42 is offset to the upper left in FIG. 14. The forming process of the color resist block in the embodiment shown in FIG. 14 is described below. FIG. 15 is a schematic diagram of the process of sequentially manufacturing a plurality of first color resist blocks, a plurality of second color resist blocks, and a third color resist block provided by an embodiment of the present application. As shown in FIG. 15:

[0138] In the first step, assuming that the rotation axis O is located below the (a) part of FIG. 15, similar to the (a) part of FIG. 8, the first color resist block material of the whole layer is first subjected to the exposure process to form a plurality of first color resist blocks 41 as shown in the (a) part of FIG. 15, but the first color resist blocks 41 are compensated so that the left side edge, the lower side edge and the right side edge of the first color resist blocks 41 after photocuring all exceed the range of the first sub-pixel region 11. In the spin development process, the impact force of the developing solution on the left side edge, the lower side edge and the right side edge of the first color resist blocks 41 is large, and the first color resist blocks 41 will overdevelop at these side edges, thereby forming a plurality of first color resist blocks 41 as shown in the (b) part of FIG. 13, and the edges of the orthographic projection of the first color resist blocks 41 on the drive backboard 1 coincide with the edges of the first sub-pixel region 11. It should be noted that the position of the rotation axis O is only schematically shown in the (a) part of FIG. 13 in FIG. 13.

[0139] In the second step, similar to the (c) part of FIG. 8, a plurality of second color resist blocks 42 are formed as shown in the (c) part of FIG. 15, and the edges of the orthographic projection of each second color resist block 42 on the drive backboard coincide with the edges of the corresponding second sub-pixel region 12. However, with the continuous washing of the developing solution, the impact force of the developing solution on the lower left end and the right side edge of the second color resist blocks 42 is large, and a plurality of second color resist blocks 42 are formed as shown in the (d) part of FIG. 15. Compared with the lower left end of the second color resist blocks 42, the first color resist blocks 41 located at the lower right of the second color resist blocks 42 play a role in hindering the washing of the developing solution to the right side edge of the second color resist blocks 42, and the washing force of the developing solution to the right side edge of the second color resist blocks 42 is smaller, so the overdevelopment degree of the right side edge of the second color resist blocks 42 is smaller. Exemplarily, as shown in the (d) part of FIG. 15, the lower left end of the second color resist blocks 42 is the first side edge 400A, and the right side edge is the second side edge 400B, and the first side edge 400A and the second side edge 400B are neither opposite nor adjacent.

[0140] In the third step, similar to the part (e) of FIG. 8, a plurality of third color resist blocks 43 are formed as shown in the part (e) of FIG. 15, and the edges of the orthographic projection of each third color resist block 43 on the driving backboard completely coincide with the edges of the corresponding third sub-pixel region 13. As the developer continues to wash, although there is a spacing between the third color resist block 43 and the second color resist block 42 on the left side, the first color resist block 41 located at the lower left of the third color resist block 43 plays a role of hindering the developer from washing the left side edge of the third color resist block 43, and the first color resist block 41 located at the lower left of the third color resist block 43, the first color resist block 41 located at the upper left of the third color resist block 43, and the second color resist block 42 located on the left side of the third color resist block 43 enclose a closed figure, so that the flow rate of the developer at this position is small, and the left side edge of the third color resist block 43 is almost not excessively washed by the developer, so that the problem of over-development of each side edge of the third color resist block 43 produced in the third step is almost not caused.

[0141] In the embodiments of the present application, the display panel is a silicon-based organic light-emitting micro display panel, which has the characteristics of small pixel size and high pixel density, and has wide application in the fields of military application, automatic driving, augmented reality technology (AR) and virtual reality technology (VR).

[0142] FIG. 16 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present application. As shown in FIG. 16, the method comprises the following steps.

[0143] In step 1601, a driving backboard is provided, and the driving backboard has a plurality of sub-pixel regions.

[0144] In step 1602, a pixel definition layer, a light-emitting functional layer and a color film layer are manufactured on the driving backboard.

[0145] The light-emitting functional layer can include a plurality of light-emitting units, the plurality of light-emitting units correspond to the plurality of sub-pixel regions, and the orthographic projection of the light-emitting unit on the driving backboard is located in the corresponding sub-pixel region.

[0146] The pixel definition layer has a plurality of pixel openings, the plurality of pixel openings correspond to the plurality of light-emitting units, and the orthographic projection of the pixel opening on the driving backboard overlaps the orthographic projection of the corresponding light-emitting unit on the driving backboard.

[0147] The color film layer is located on the side of the light-emitting functional layer away from the driving backboard, and the color film layer includes a plurality of color resist blocks, the plurality of color resist blocks correspond to the plurality of sub-pixel regions, and the orthographic projection of the color resist block on the driving backboard is located in the corresponding sub-pixel region.

[0148] At least part of the color resist blocks are target color resist blocks, there is a gap between the target color resist blocks and the at least two adjacent color resist blocks, and at least one target color resist block has a first side and a second side; the gap between the first side and the adjacent color resist block is greater than the gap between the second side and the adjacent color resist block; there is a gap between the center of the orthographic projection of the target color resist block on the driving backboard and the center of the corresponding sub-pixel region; the plurality of pixel openings correspond to the plurality of color resist blocks, and the orthographic projection of the pixel opening on the driving backboard is located in the orthographic projection of the corresponding color resist block on the driving backboard.

[0149] In summary, the manufacturing method of the display panel provided by the embodiments of the present application manufactures a display panel including a driving backboard, a pixel definition layer, a light-emitting functional layer, and a color film layer, and the driving backboard includes a plurality of sub-pixel regions. In the actual process of manufacturing the plurality of color resist blocks in the color film layer, the edge of the orthographic projection of the target color resist block on the driving backboard is shrunk into the edge of the corresponding sub-pixel region due to overdevelopment. The present application is to make the orthographic projection of the pixel opening on the driving backboard located in the orthographic projection of the corresponding color resist block on the driving backboard, especially to make the orthographic projection of the pixel opening corresponding to the target color resist block located in the orthographic projection of the target color resist block on the driving backboard, to improve the problem that the light emitted by the light-emitting unit is directly emitted through the gap between the target color resist block and the adjacent color resist block, and to improve the problem of brightness non-uniformity of the display panel.

[0150] In some possible implementation manners, in the step 1602, the color film layer is manufactured on the driving backboard, including:

[0151] In step 16021, a color resist block material layer is formed on the side of the light-emitting functional layer away from the driving backboard.

[0152] In step 16022, the color resist block material layer is subjected to exposure processing and spin development processing to obtain the color resist blocks.

[0153] In the spin development processing, the display panel is rotated around a preset rotation axis.

[0154] FIG. 17 is a schematic diagram of an operation device for manufacturing a color film layer according to an embodiment of the present application. As shown in FIG. 17, the color film layer is manufactured by using a spin development process. In the spin development process, the developing solution flows away from the rotation axis. In this way, the color film layers of a plurality of display panels can be manufactured simultaneously. For example, as shown in FIG. 17, the operation device for manufacturing the color film layer includes a machine table 9 rotating around a rotation axis O. A substrate (for example, a silicon wafer 8) for manufacturing a plurality of display panels is fixed on the machine table 9 rotating around the rotation axis O. The developing solution is dropped to the center of the silicon wafer 8 having the color resist block material on the surface. As the machine table 9 rotates around the rotation axis O, the developing solution at the center flows to the periphery of the silicon wafer 8 under the centrifugal force (the direction indicated by the arrow in FIG. 17) to dissolve the un-photocured color resist block material.

[0155] The display device provided by the embodiments of the present application can be any product or component with display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc.

[0156] The display device provided by the embodiments of the present application can be any product or component with display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc.

[0157] The display device provided by the embodiments of the present application can be any product or component with display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc.

[0158] It should be noted that the terms used in the embodiment part of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiment part of the present application should be understood as the general meaning understood by those skilled in the art to which the present application belongs. The terms "first", "second", "third" and similar terms used in the specification and claims of the patent application of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar terms do not represent a quantity limitation, but represent the existence of at least one. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The orientation terms mentioned in the present application, such as "top", "bottom", "upper", "lower", "left" or "right", are only the direction of the drawings, therefore, the orientation terms are used to better and more clearly illustrate and understand the present application, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0159] The above is only an optional embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises a driving backboard, a pixel definition layer, a light-emitting functional layer and a color film layer on the driving backboard, and the driving backboard has a plurality of sub-pixel areas; The light-emitting functional layer comprises a plurality of light-emitting units corresponding to the plurality of sub-pixel areas, and the orthographic projection of the light-emitting unit on the driving backboard is located in the corresponding sub-pixel area; The pixel definition layer has a plurality of pixel openings corresponding to the plurality of light-emitting units, and the orthographic projection of the pixel opening on the driving backboard overlaps with the orthographic projection of the corresponding light-emitting unit on the driving backboard; The color film layer is located on the side of the light-emitting functional layer away from the driving backboard, and the color film layer comprises a plurality of color resistance blocks corresponding to the plurality of sub-pixel areas, and the orthographic projection of the color resistance block on the driving backboard is located in the corresponding sub-pixel area; At least part of the color resistance blocks are target color resistance blocks, and there is a spacing between the target color resistance block and at least two adjacent color resistance blocks, and at least one target color resistance block has a first side and a second side; the spacing between the first side and the adjacent color resistance block is greater than the spacing between the second side and the adjacent color resistance block; The center of the orthographic projection of the target color resistance block on the driving backboard and the center of the corresponding sub-pixel area have a spacing; the plurality of pixel openings correspond to the plurality of color resistance blocks, and the orthographic projection of the pixel opening on the driving backboard is located in the orthographic projection of the corresponding color resistance block on the driving backboard.

2. The display panel of claim 1, wherein, The plurality of pixel openings comprise a target pixel opening corresponding to the target color resistance block, and the plurality of sub-pixel areas comprise a target sub-pixel area corresponding to the target color resistance block; The center of the orthographic projection of at least one target color resistance block on the driving backboard and the center of the orthographic projection of the target pixel opening on the driving backboard are located in the same direction of the center of the target sub-pixel area.

3. The display panel of claim 2, wherein, The plurality of color resistance blocks comprise first color resistance blocks, second color resistance blocks and third color resistance blocks with different colors, and any two of the first color resistance blocks, the second color resistance blocks and the third color resistance blocks are adjacent; The plurality of pixel openings comprise first pixel openings, second pixel openings and third pixel openings, the first pixel openings correspond to the first color resistance blocks, the second pixel openings correspond to the second color resistance blocks, and the third pixel openings correspond to the third color resistance blocks; The distance between the center of the orthographic projection of the first color resistance block on the driving backboard and the center of the corresponding sub-pixel area is L1, the distance between the center of the orthographic projection of the second color resistance block on the driving backboard and the center of the corresponding sub-pixel area is L2, and the distance between the center of the orthographic projection of the third color resistance block on the driving backboard and the center of the corresponding sub-pixel area is L3, wherein L2>L1 and L2>L3. The center of the orthographic projection of the second pixel opening on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the second color resist block in a first direction, and the first direction is a direction in which the center of the sub-pixel region corresponding to the second color resist block is directed to the center of the orthographic projection of the second color resist block on the driving back plate.

4. The display panel of claim 3, wherein, L1>L3, the first color resist block is also the target color resist block, and the center of the orthographic projection of the first color resist block on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the first color resist block away from the specified position; The center of the orthographic projection of the second color resist block on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the second color resist block away from the specified position and away from the center of the orthographic projection of the first color resist block on the driving back plate; The center of the orthographic projection of the first pixel opening on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the first color resist block away from the specified position; and the specified position is a position of a rotation axis of the display panel in a process of forming the color film layer on one side of the light-emitting functional layer away from the driving back plate.

5. The display panel of claim 3, wherein, L1>L3, the first color resist block is also the target color resist block; The center of the orthographic projection of the first pixel opening on the driving back plate is located on one side of the center of the sub-pixel region corresponding to the first color resist block in the first direction, and / or the center of the orthographic projection of the third pixel opening on the driving back plate is located on one side of the center of the corresponding sub-pixel region in the first direction.

6. The display panel of claim 4 or 5, wherein, The display panel further comprises: a plurality of lens structures located on one side of the color film layer away from the driving back plate, the plurality of lens structures correspond to the plurality of color resist blocks, and the orthographic projection of the lens structure on the driving back plate at least partially overlaps with the orthographic projection of the corresponding color resist block on the driving back plate; The plurality of lens structures comprise: a first lens structure, a second lens structure and a third lens structure, the first lens structure corresponds to the first color resist block, the second lens structure corresponds to the second color resist block, and the third lens structure corresponds to the third color resist block; The center of the orthographic projection of the second lens structure on the driving back plate coincides with the center of the orthographic projection of the second pixel opening on the driving back plate.

7. The display panel of claim 6, wherein, The center of the orthographic projection of the first lens structure on the driving back plate coincides with the center of the orthographic projection of the first pixel opening on the driving back plate; And / or, The center of the orthographic projection of the third lens structure on the driving back plate coincides with the center of the orthographic projection of the third pixel opening on the driving back plate.

8. The display panel of claim 6, wherein, The display panel further comprises: a cover layer located on one side of the color film layer away from the driving back plate; The cover layer is in direct contact with one side of the color film layer away from the driving back plate, and fills the gap between the target color resist block and at least two adjacent color resist blocks.

9. The display panel of any of claims 3-8, wherein, The plurality of color resist blocks include a plurality of the first color resist blocks, a plurality of the second color resist blocks, and a plurality of the third color resist blocks, the plurality of sub-pixel regions are arranged along a second direction and a third direction, the second direction is a direction in which the sub-pixel region corresponding to the first color resist block is toward the sub-pixel region corresponding to the second color resist block, and the third direction is a direction in which the sub-pixel region corresponding to the third color resist block is toward the sub-pixel region corresponding to the second color resist block.

10. The display panel of claim 9, wherein, The shape of the sub-pixel region is a hexagon, or the shape of the sub-pixel region is a rectangle.

11. The display panel of claim 9, wherein, In the second direction or the third direction, the distance between any two adjacent pixel openings is the same.

12. The display panel of claim 3, wherein, An edge of the orthographic projection of the first color resist block on the drive backplate coincides with an edge of the sub-pixel region corresponding to the first color resist block, and an edge of the orthographic projection of the third color resist block on the drive backplate coincides with an edge of the sub-pixel region corresponding to the third color resist block.

13. The display panel of claim 12, wherein, The center of the orthographic projection of the first pixel opening on the drive backplate is located on one side of the center of the sub-pixel region corresponding to the first color resist block in the first direction, and / or the center of the orthographic projection of the third pixel opening on the drive backplate is located on one side of the center of the sub-pixel region corresponding to the third color resist block in the first direction.

14. The display panel of any one of claims 2-13, wherein, The plurality of pixel openings include a target pixel opening corresponding to the target color resist block, and an edge of the orthographic projection of the target pixel opening on the drive backplate is greater than or equal to 0.1 microns from an edge of the orthographic projection of the target color resist block on the drive backplate.

15. The display panel of any one of claims 2-14, wherein, The ratio of the area of the orthographic projection of the target color resist block on the drive backplate to the area of the sub-pixel region corresponding to the target color resist block is greater than or equal to 0.

7.

16. The display panel of any one of claims 2-15, wherein, The display panel further includes at least one encapsulation layer. The at least one encapsulation layer is located between the light-emitting functional layer and the color film layer.

17. The display panel of claim 16, wherein, The number of encapsulation layers is multiple, and the multiple encapsulation layers include at least one inorganic encapsulation layer and at least one organic encapsulation layer stacked.

18. A manufacturing method of a display panel, comprising: The method includes: Providing a drive backplate having a plurality of sub-pixel regions; Fabricating a pixel definition layer, a light-emitting functional layer, and a color film layer on the drive backplate; The light-emitting functional layer includes a plurality of light-emitting units corresponding to the plurality of sub-pixel regions, and the orthographic projection of the light-emitting unit on the drive backplate is located within the corresponding sub-pixel region; The pixel definition layer has a plurality of pixel openings corresponding to the plurality of light-emitting units, and the orthographic projection of the pixel opening on the drive backplate overlaps with the orthographic projection of the corresponding light-emitting unit on the drive backplate; The color film layer is located on the side of the light-emitting functional layer away from the drive backplate, and the color film layer includes a plurality of color resist blocks corresponding to the plurality of sub-pixel regions, and the orthographic projection of the color resist block on the drive backplate is located within the corresponding sub-pixel region; At least part of the color resist blocks are target color resist blocks, a spacing exists between the target color resist blocks and at least two adjacent color resist blocks, and at least one of the target color resist blocks has a first side and a second side; a spacing between the first side and an adjacent color resist block is greater than a spacing between the second side and an adjacent color resist block; a center of a normal projection of the target color resist block on the driving back plate and a center of a corresponding sub-pixel region have a spacing; the plurality of pixel openings correspond to the plurality of color resist blocks, and a normal projection of the pixel openings on the driving back plate is located within a normal projection of the corresponding color resist blocks on the driving back plate.

19. The method of manufacturing according to claim 18, wherein, Manufacturing a color film layer on the driving back plate, comprising: forming a color resist block material layer on a side of the light-emitting functional layer away from the driving back plate; performing exposure processing and rotary developing processing on the color resist block material layer to obtain color resist blocks; in the rotary developing processing, the display panel rotates around a preset rotation axis.

20. A display device comprising: The display device comprises a power supply circuit and the display panel according to any one of claims 1 to 17, and the power supply circuit supplies power to the display panel.

Images