Display panel, method for manufacturing display panel, and display device

Abstract

The application provides a display panel, a preparation method of the display panel and a display device, wherein the display panel comprises a first substrate, a first pixel definition layer and a first light emitting unit layer arranged in sequence; a first light emitting area of the first light emitting unit layer covers a first pixel definition opening of the first pixel definition layer in a plan view, and a first non-light emitting area of the first light emitting material surrounds the first light emitting area; wherein four first light emitting materials of the same color adjacent to each other are taken as a first repeating unit, the first repeating unit comprises two first light emitting materials of the same color adjacent to each other along a first direction and two first light emitting materials of the same color adjacent to each other along a second direction; in the first repeating unit, the four first light emitting materials have a first center, and the width of the first non-light emitting area of the first light emitting material close to the first center is smaller than the width of the first non-light emitting area away from the first center. The application can reduce the color mixing risk of different color light emitting materials of the display panel.

Description

Technical Field

[0001] This invention relates to the field of display panels, and more specifically, to a display panel, a method for manufacturing the display panel, and a display device. Background Technology

[0002] In OLED (Organic Light-Emitting Diode) display panels, the RGB (red, green, and blue) emitting layer is prepared using a vacuum thermal evaporation process. During evaporation, the organic light-emitting material is heated to a sublimation or evaporation state, causing it to deposit onto a designated area of ​​the substrate in a vacuum environment. This process requires the use of a metal mask to achieve spatially selective deposition of the RGB light-emitting material.

[0003] However, during the evaporation process of the RGB light-emitting layer, misalignment between the metal mask and the substrate can prevent the RGB light-emitting material from being precisely deposited at the target location. This misalignment can cause color mixing in the intersection areas between RGB subpixels, thus affecting the display quality. Summary of the Invention

[0004] In view of this, the present invention provides a display panel, a method for preparing a display panel, and a display device, so as to at least solve the problem that the risk of color mixing of light-emitting materials of different colors is high due to the misalignment of the mask during the evaporation of the light-emitting material of the display panel.

[0005] In one aspect, embodiments of the present invention provide a display panel, comprising: a first substrate; a first pixel definition layer located on one side of the first substrate, the first pixel definition layer including a plurality of first pixel definition openings; a first light-emitting unit layer located on the side of the first pixel definition layer opposite to the first substrate, the first light-emitting unit layer including a plurality of first light-emitting materials, each first light-emitting material including a first light-emitting area and a first non-light-emitting area, the first non-light-emitting area surrounding the first light-emitting area, each first light-emitting area covering a first pixel definition opening in a plan view; wherein, four adjacent first light-emitting materials of the same color form a first repeating unit, the first repeating unit including two first light-emitting materials of the same color adjacent along a first direction and two first light-emitting materials of the same color adjacent along a second direction, the first direction intersecting the second direction; in the first repeating unit, the four first light-emitting materials have a first center, the width of the first non-light-emitting area of ​​the first light-emitting material near the first center is smaller than the width of the first non-light-emitting area away from the first center.

[0006] On the other hand, embodiments of the present invention also provide a method for manufacturing a display panel, comprising: providing a first substrate; preparing a first pixel definition layer on one side of the first substrate; wherein the first pixel definition layer includes a plurality of first pixel definition openings; providing a mask, and depositing a first light-emitting unit layer on the side of the first pixel definition layer away from the first substrate through the mask; wherein the first light-emitting unit layer includes a plurality of first light-emitting materials, each first light-emitting material including a first light-emitting area and a first non-light-emitting area, the first non-light-emitting area surrounding the first light-emitting area, each first light-emitting area covering a first pixel definition opening in a planar view; using four adjacent first light-emitting materials of the same color as a first repeating unit, the first repeating unit including two first light-emitting materials of the same color adjacent along a first direction and two first light-emitting materials of the same color adjacent along a second direction, the first direction intersecting the second direction; in the first repeating unit, the four first light-emitting materials have a first center, and the width of the first non-light-emitting area of ​​the first light-emitting material near the first center is smaller than the width away from the first center.

[0007] In another aspect, embodiments of the present invention also provide a display device including the display panel described above.

[0008] The display panel, the method for manufacturing the display panel, and the display device of the present invention, by using four first light-emitting materials of the same color, two each along a first direction and a second direction, as a first repeating unit, and ensuring that the positions of the four first light-emitting materials are all close to the center of the first repeating unit, can reduce the risk of color mixing of adjacent first light-emitting materials of different colors when the mask plate is misaligned in any direction during the evaporation process of the first light-emitting materials.

[0009] In another aspect, embodiments of the present invention also provide a display panel, characterized in that it comprises: a second substrate; a second pixel definition layer located on one side of the second substrate, the second pixel definition layer including a plurality of second pixel definition openings; a third light-emitting unit layer located on the side of the second pixel definition layer opposite to the second substrate, the third light-emitting unit layer including a plurality of third light-emitting materials, the third light-emitting materials including a second light-emitting area and a first compensation area, the first compensation area surrounding the second light-emitting area, each third light-emitting material covering a second pixel definition opening in a planar view; wherein, four adjacent third light-emitting materials of the same color form a second repeating unit, the second repeating unit including two third light-emitting materials of the same color adjacent along a third direction and two third light-emitting materials of the same color adjacent along a fourth direction, the third direction intersecting the fourth direction; in the second repeating unit, the four third light-emitting materials have a second center, and the first compensation area of ​​the four third light-emitting materials is centrally symmetrical based on the second center.

[0010] In another aspect, embodiments of the present invention also provide a method for fabricating a display panel, comprising: providing a second substrate; fabricating a second pixel definition layer on one side of the second substrate; wherein the second pixel definition layer includes a plurality of second pixel definition openings; providing a mask, and depositing a third light-emitting unit layer on the side of the second pixel definition layer opposite to the second substrate through the mask; wherein the third light-emitting unit layer includes a plurality of third light-emitting materials, each third light-emitting material including a second light-emitting region and a first compensation region, the first compensation region surrounding the second light-emitting region, each third light-emitting material covering a second pixel definition opening in a planar view; using four adjacent third light-emitting materials of the same color as a second repeating unit, the second repeating unit including two third light-emitting materials of the same color adjacent along a third direction and two third light-emitting materials of the same color adjacent along a fourth direction, the third direction intersecting the fourth direction; in the second repeating unit, the four third light-emitting materials have a second center, and the first compensation region of the four third light-emitting materials is centrally symmetrical based on the second center.

[0011] In another aspect, embodiments of the present invention also provide a display device including the display panel described above.

[0012] The display panel, the method for manufacturing the display panel, and the display device of the present invention, by setting a first compensation area for a third light-emitting material, and taking two of the same color third light-emitting materials along the third direction and two along the fourth direction, for a total of four, as a second repeating unit, and making the first compensation areas of the four third light-emitting materials centrally symmetrical, can, during the vapor deposition process of the third light-emitting material, when the mask plate is misaligned in any direction, at least two of the first compensation areas of the third light-emitting materials in the second repeating unit can be used to compensate for the misalignment of the mask plate, thereby reducing the risk of color mixing during the vapor deposition of adjacent first light-emitting materials of different colors. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of a cross-sectional structure of a display panel in the thickness direction provided in an embodiment of the present invention;

[0015] Figure 2 yes Figure 1 Top view of the first luminescent material in the middle;

[0016] Figure 3 This is a schematic diagram of a first repeating unit provided in an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of another first repeating unit provided in an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of a first luminescent material provided in an embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure in the thickness direction of another display panel provided in an embodiment of the present invention;

[0020] Figure 7 This is a flowchart of the steps in a method for manufacturing a display panel according to an embodiment of the present invention;

[0021] Figure 8 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention;

[0022] Figure 9 This is a schematic diagram of the cross-sectional structure in the thickness direction of another display panel provided in an embodiment of the present invention;

[0023] Figure 10 yes Figure 9 Top view of the second luminescent material;

[0024] Figure 11 yes Figure 10 A schematic diagram of a second luminescent material;

[0025] Figure 12 yes Figure 11 A schematic diagram of the second repeating unit corresponding to the second luminescent material;

[0026] Figure 13 yes Figure 10 A schematic diagram of another second luminescent material;

[0027] Figure 14 yes Figure 13 A schematic diagram of the second repeating unit corresponding to the second luminescent material;

[0028] Figure 15 This is a schematic diagram of the cross-sectional structure of another display panel in the thickness direction provided in an embodiment of the present invention;

[0029] Figure 16 This is a flowchart of another method for manufacturing a display panel provided in an embodiment of the present invention;

[0030] Figure 17 This is a schematic diagram of the structure of another display device provided in an embodiment of the present invention.

[0031] Figure label:

[0032] 11. First substrate;

[0033] 12. First pixel definition layer;

[0034] 13. First light-emitting unit layer;

[0035] 131. The first luminescent material;

[0036] 1311, First luminescent zone;

[0037] 1312, First non-luminescent region;

[0038] 1313, First anode via;

[0039] 14. First repeating unit;

[0040] 141. The First Center;

[0041] 15. First electrode layer;

[0042] 16. Second electrode layer;

[0043] 17. Second light-emitting unit layer;

[0044] 171. Second luminescent material;

[0045] 1X, First Direction;

[0046] 1Y, Second Direction;

[0047] 21. Second substrate;

[0048] 22. Second pixel definition layer;

[0049] 221. The second pixel defines the opening;

[0050] 23. Third light-emitting unit layer;

[0051] 231. Third luminescent material;

[0052] 2311, Second luminescent zone;

[0053] 2312, First Compensation Zone;

[0054] 2313, Redundancy Area;

[0055] 2314. Second anode via;

[0056] 24. Second repeating unit;

[0057] 241. The Second Center;

[0058] 25. Third electrode layer;

[0059] 26. Fourth electrode layer;

[0060] 27. Fourth light-emitting unit layer;

[0061] 271. The fourth type of luminescent material;

[0062] 2X, Third-party;

[0063] 2Y, the fourth direction. Detailed Implementation

[0064] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0065] The use of terms such as "first," "second," and similar terms in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this invention, terms such as "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention.

[0066] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features in different embodiments can be combined with each other.

[0067] On one hand, such as Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a display panel, which includes a first substrate 11, a first pixel definition layer 12 and a first light-emitting unit layer 13.

[0068] The first pixel definition layer 12 is located on one side of the first substrate 11. The first pixel definition layer 12 includes a plurality of first pixel definition openings for partially accommodating the first light-emitting unit layer 13.

[0069] The first light-emitting unit layer 13 is located on the side of the first pixel definition layer 12 facing away from the first substrate 11. The first light-emitting unit layer 13 includes a plurality of first light-emitting materials 131, each of which is partially located within a first pixel definition opening. Each first light-emitting material 131 includes a first light-emitting area 1311 and a first non-light-emitting area 1312, with the first non-light-emitting area 1312 surrounding the first light-emitting area 1311. Each first light-emitting area 1311 covers a first pixel definition opening in a planar view. That is, not all parts of each first light-emitting material 131 emit light; the first non-light-emitting area 1312 is a redundant portion created during the vapor deposition of the first light-emitting material 131, used to ensure that the first light-emitting material 131 covers the first pixel definition opening. Specifically, the size of the first light-emitting area 1311 can also be the area of ​​an effective electrode, where the area of ​​the effective electrode is equal to the area of ​​the first pixel definition opening. Furthermore, the first light-emitting material 131 includes three colors of light-emitting material, specifically red, green, and blue.

[0070] Specifically, four adjacent first luminescent materials 131 of the same color constitute a first repeating unit 14. The first repeating unit 14 includes two adjacent first luminescent materials 131 of the same color along a first direction 1X and two adjacent first luminescent materials 131 of the same color along a second direction 1Y. The first direction 1X intersects the second direction 1Y. Depending on different pixel arrangements and the shape of the first luminescent materials 131, the first repeating unit 14 can include various forms. Figure 3 The example uses only one first repeating unit 14 of a first luminescent material 131 of a single color as an illustration and is not intended to be limiting. Furthermore, Figure 3 Taking a display panel with a Delta pixel arrangement as an example, any pixel arrangement where the number of the three colors of the first luminescent material 131 is equal can adopt the above-described settings of this application. When the number of the three colors of the first luminescent material 131 is not equal, for example, when the display panel adopts a "2-in-1" pixel arrangement, the two green first luminescent materials 131 in one pixel can be defined as a whole as a first repeating unit 14. That is, in this case, the first repeating unit 14 corresponding to the green first luminescent material 131 has eight green first luminescent materials 131. In other embodiments, the number of first luminescent materials 131 included in the first repeating unit 14 can be determined according to the specific pixel arrangement, and this application does not impose any restrictions. In addition, the first direction 1X and the second direction 1Y can be perpendicular or not perpendicular, and this application does not impose any restrictions on this.

[0071] Furthermore, in the first repeating unit 14, the four first luminescent materials 131 each have a first center 141. The width of the first non-luminescent region 1312 of the first luminescent material 131 near the first center 141 is smaller than the width of the first non-luminescent region 1312 away from the first center 141. That is, in each first repeating unit 14, each first luminescent region 1311 is not located at the center of the first luminescent material 131, but at the edge of the first luminescent material 131 near the first center 141, thus forming a state in which the four first luminescent regions 1311 are close to each other, so that the width of the first non-luminescent region 1312 near the first center 141 is smaller than the width of the first non-luminescent region 1312 away from the first center 141. The above configuration, by using four first light-emitting materials 131 of the same color, two each along the first direction 1X and the second direction 1Y, as a first repeating unit 14, and ensuring that the positions of the four first light-emitting materials 131 are all close to the center of the first repeating unit 14, can reduce the risk of color mixing between adjacent first light-emitting materials 131 when the mask plate is misaligned in any direction (e.g., the first direction 1X or the second direction 1Y) during the evaporation process of the first light-emitting materials 131.

[0072] Furthermore, in the arrangement of the first light-emitting material 131 in the entire display panel, depending on the definition of the first repeating unit 14, in other first repeating units 14, the width of the first non-light-emitting area 1312 of the first light-emitting material 131 near the first center 141 may be greater than the width of the first non-light-emitting area 1312 away from the first center 141. However, the arrangement of the first light-emitting material 131 in the display panel formed by these different definitions of the first repeating unit 14 is actually the same. Therefore, this application only uses the aforementioned embodiment as an example, and embodiments with other definitions of the first repeating unit 14 will not be described in detail since the principle is the same.

[0073] Continue to refer to Figure 2 and Figure 3 Since the location of the first light-emitting area 1311 is the same as the location of the first pixel definition opening, and the first light-emitting material 131 is prepared by vapor deposition at the first pixel definition opening, in order to realize that the first light-emitting area 1311 is located on the edge of the first light-emitting material 131 near the first center 141, it can be achieved by changing the vapor deposition position of the first light-emitting material 131 or by changing the opening position of the first pixel definition opening. The two implementation methods are explained below:

[0074] In some alternative embodiments, along the first direction 1X and the second direction 1Y, the distance between the first pixel definition openings corresponding to two adjacent first light-emitting materials 131 of the same color is equal, and the distance between two adjacent first light-emitting materials 131 of the same color is arranged in an alternating pattern of large and small. Specifically, this embodiment achieves the first light-emitting area 1311 located on the edge of the first light-emitting material 131 near the first center 141 by changing the evaporation position of the first light-emitting material 131. Since the first light-emitting material 131 needs to be evaporated through the opening of the mask plate to prepare the first pixel definition opening, the position and size of the opening of the mask plate correspond to the evaporation position and size of the first light-emitting material 131, and the position of the first light-emitting area 1311 is the position of the first pixel definition opening, therefore, in the first repeating unit 14, the positions of the openings of the four masks corresponding to the four first light-emitting materials 131 can be designed to be mutually opposite to the center of the four mask openings, so that the first light-emitting area 1311 of the four evaporated first light-emitting materials 131 is located on the edge of the first light-emitting material 131 near the first center 141. In this case, since the position of the pixel definition opening is not changed but the position of the first light-emitting material 131 is changed, in the arrangement of the first light-emitting materials 131 throughout the display panel, along the first direction 1X and the second direction 1Y, the distance between the first pixel definition openings corresponding to two adjacent first light-emitting materials 131 of the same color is equal, and the distance between two adjacent first light-emitting materials 131 of the same color is arranged in an alternating pattern of large and small distances. Furthermore, Figure 3 Taking the display panel with Delta pixel arrangement as an example, the above settings can be used for any pixel arrangement where the number of the three colors of the first luminescent material 131 is equal.

[0075] Furthermore, in embodiments where the number of the three different colored first luminescent materials 131 varies, for example, where the display panel uses a "2-in-1" pixel arrangement, two green first luminescent materials 131 in one pixel can be grouped together, and the distance between adjacent groups of green first luminescent materials 131 along the first direction 1X and the second direction 1Y can be alternated between large and small. Similar adaptive adjustments can be made in other embodiments, and this application does not limit this.

[0076] In some alternative embodiments, along the first direction 1X and the second direction 1Y, the distance between two adjacent first light-emitting materials 131 of the same color is equal, and the distance between the first pixel definition openings corresponding to two adjacent first light-emitting materials 131 of the same color is arranged in an alternating pattern of large and small. Specifically, this embodiment achieves the first light-emitting area 1311 located on the edge of the first light-emitting material 131 near the first center 141 by changing the opening position of the first pixel definition opening. Since the first light-emitting material 131 covers the first pixel definition opening, the position of the first light-emitting area 1311 is the position of the first pixel definition opening, and the first non-light-emitting area 1312 surrounds the first light-emitting area 1311. Therefore, in the first repeating unit 14, the positions of the four first pixel definition openings corresponding to the four first light-emitting materials 131 can be designed to be close to the center of the four first pixel definition openings, so that the first light-emitting area 1311 of the four first light-emitting materials 131 obtained by vapor deposition is located on the edge of the first light-emitting material 131 near the first center 141. In this case, since the position of the pixel definition opening is changed but the position of the first light-emitting material 131 is not changed, in the arrangement of the first light-emitting materials 131 in the entire display panel, along the first direction 1X and the second direction 1Y, the distance between two adjacent first light-emitting materials 131 of the same color is equal, and the distance between the first pixel definition openings corresponding to two adjacent first light-emitting materials 131 of the same color is arranged in an alternating pattern of large and small. Furthermore, Figure 3 Taking the display panel with Delta pixel arrangement as an example, the above settings can be used for any pixel arrangement where the number of the three colors of the first luminescent material 131 is equal.

[0077] Furthermore, in embodiments where the number of the three different colors of the first luminescent material 131 varies, for example, when the display panel uses a "2-in-1" pixel arrangement, the two first pixel openings corresponding to the two green first luminescent materials 131 in a pixel can be grouped together. Along the first direction 1X and the second direction 1Y, the distance between adjacent groups of first pixel openings is arranged in an alternating pattern of large and small. Similar adaptive adjustments can be made in other embodiments, and this application does not impose any limitations on this.

[0078] like Figure 3 and Figure 4As shown, in some embodiments, the first repeating unit 14 is centrally symmetrical about the first center 141. Specifically, the quadrilateral formed by connecting the center points of the four first light-emitting materials 131 in the first repeating unit 14 can be a general rhombus or a square, thus making the first repeating unit 14 centrally symmetrical. That is, at this time, the width of the first light-emitting area 1311 of the four first light-emitting materials 131 in the first repeating unit 14 from the edge of the first light-emitting material 131 is equal. The above arrangement can simplify the design complexity of the display panel, thereby reducing the manufacturing time of the display panel. Furthermore, in embodiments where the evaporation position of the first light-emitting material 131 is changed, the design of the opening of the mask can be simplified, thereby reducing the manufacturing time of the display panel; in embodiments where the opening position of the first pixel definition opening is changed, the position design of the first pixel definition opening of the pixel definition layer can be simplified, thereby reducing the manufacturing time of the display panel.

[0079] Continue to refer to Figure 3 and Figure 4 In some embodiments, the first repeating unit 14 is symmetrical along the first direction 1X and / or the second direction 1Y axis, respectively. This arrangement simplifies the design complexity of the display panel, thereby reducing the manufacturing time of the display panel. For details, please refer to the foregoing embodiments; further elaboration is omitted here.

[0080] like Figure 5 As shown, in some embodiments, the difference between the width of the first non-luminescent region 1312 of the first luminescent material 131 at the location away from the first center 141 and the width at the location near the first center 141 is 2–6 μm. Specifically, that is… Figure 5 The width difference ΔW is 2–6 μm. This setting allows the width difference ΔW to offset any deviation error that occurs in any direction during the evaporation of the first luminescent material 131. This ensures that at least two of the first luminescent materials 131 in each of the first repeating units 14 are positioned close to the center of the opening defined by the first pixel corresponding to the first luminescent material 131. This reduces the risk of color mixing between adjacent first luminescent materials 131 of different colors without making the first luminescent material 131 too large, thus avoiding an increase in the risk of color mixing between adjacent first luminescent materials 131 of different colors. Furthermore, the width difference ΔW can be any value among 2 μm, 3 μm, 4 μm, 5 μm, or 6 μm; this application does not impose any limitation on this.

[0081] Continue to refer to Figure 3 and Figure 4In some embodiments, in each first repeating unit 14, the first anode via 1313 corresponding to each first luminescent material 131 is located away from the first center 141 in the first non-luminescent area 1312 of the first luminescent material 131, and the four first anode vias 1313 are centrally symmetrical. The fact that the first anode via 1313 is located in the first non-luminescent area 1312 rather than the first luminescent area 1311 can increase the area ratio of the first luminescent area 1311 to the first luminescent material 131, thereby increasing the aperture ratio of the first luminescent material 131 and thus improving the brightness of the display panel. Since the fabrication of the first anode via 1313 requires drilling holes in the first luminescent material 131, the film layer of the first luminescent material 131 around the first anode via 1313 is recessed, and the film layer of the first luminescent material 131 near the first anode via 1313 is uneven, resulting in chaotic light emission directions from the first luminescent material 131, thus affecting the display effect of the display panel. Therefore, the first anode via 1313 is located in the first non-light-emitting area 1312 rather than the first light-emitting area 1311, which can also avoid affecting the light emission direction of the first light-emitting material 131, thereby improving the display effect of the display panel. Since the distance from the edge of the first light-emitting material 131 to the first non-light-emitting area 1312 away from the first center 141 is relatively large, the location of the first anode via 1313 here can also facilitate the fabrication of the first anode via 1313. In addition, the central symmetry of the four first anode vias 1313 can reduce the four-way color shift characteristics of the display panel and reduce the display difference at different angles. Specifically, the display effect of the display panel may be different when viewed from different directions, which is the four-way color shift characteristic of the display panel. The four-way color shift characteristic of the display panel is due to the difference in emitted light in different directions caused by the asymmetry of the internal film structure of the display panel. For example, the four-way asymmetry of the scanning lines, data lines, or power lines inside the display panel, or the four-way asymmetry of the pixel positions, can all lead to the four-way color shift characteristic of the display panel. Because the film layer of the first luminescent material 131 is recessed around the first anode via 1313, the interference of the light emission direction of the first luminescent material 131 near the first anode via 1313 and the reflection of ambient light will cause four-way color shift of the display panel. Therefore, the four first anode vias 1313 are arranged symmetrically to make the interference of the first anode vias 1313 on the light emission direction of the first luminescent material 131 and the reflection of ambient light symmetrical, thereby reducing the four-way color shift characteristics of the display panel and reducing the display difference at different angles.

[0082] like Figure 6 As shown, in some embodiments, the display panel further includes a first electrode layer 15, a second electrode layer 16, and a second light-emitting unit layer 17.

[0083] In this embodiment, the first electrode layer 15 is located on one side of the first pixel definition layer 12. The second electrode layer 16 is located on the side of the first pixel definition layer 12 that is different from the first electrode layer 15. The first light-emitting unit layer 13 and the second light-emitting unit layer 17 are located between the first electrode layer 15 and the second electrode layer 16. That is, in these embodiments, the display panel is a tandem device including two light-emitting unit layers. Because the tandem device includes two light-emitting unit layers, it requires two preparations of the light-emitting unit layers, thus requiring six vapor deposition processes for three colors, further increasing the risk of color mixing.

[0084] The second light-emitting unit layer 17 includes multiple second light-emitting materials 171, each of which overlaps with a first light-emitting material 131 in the planar view. This arrangement allows the second light-emitting unit layer 17 to adopt the same design as the first light-emitting unit layer 13, thereby reducing the risk of color mixing in tandem devices. Further details will not be repeated.

[0085] The display panel of the present invention uses four first light-emitting materials 131 of the same color, two each along the first direction 1X and the second direction 1Y, as a first repeating unit 14, and positions of the four first light-emitting materials 131 are all close to the center of the first repeating unit 14. This ensures that during the evaporation process of the first light-emitting materials 131, when the mask plate is misaligned in any direction, at least two of the first light-emitting materials 131 in the first repeating unit 14 are close to the center of the first pixel definition opening corresponding to the first light-emitting material 131, thereby reducing the risk of color mixing of adjacent first light-emitting materials 131 of different colors.

[0086] On the other hand, such as Figure 7 As shown, embodiments of the present invention also provide a method for manufacturing a display panel, comprising:

[0087] S110, Provide a first substrate 11;

[0088] S120. A first pixel definition layer 12 is prepared on one side of the first substrate 11; wherein the first pixel definition layer 12 includes a plurality of first pixel definition openings;

[0089] S130. Provide a mask, and deposit a first light-emitting unit layer 13 on the side of the first pixel definition layer 12 opposite to the first substrate 11 through the mask.

[0090] The first light-emitting unit layer 13 includes a plurality of first light-emitting materials 131. Each first light-emitting material 131 includes a first light-emitting area 1311 and a first non-light-emitting area 1312. The first non-light-emitting area 1312 surrounds the first light-emitting area 1311. Each first light-emitting area 1311 covers a first pixel defined opening in the planar view. Four adjacent first light-emitting materials 131 of the same color form a first repeating unit 14. The first repeating unit 14 includes two first light-emitting materials 131 of the same color adjacent along the first direction 1X and two first light-emitting materials 131 of the same color adjacent along the second direction 1Y. The first direction 1X and the second direction 1Y intersect. In the first repeating unit 14, the four first light-emitting materials 131 have a first center 141. The width of the first non-light-emitting area 1312 of the first light-emitting material 131 near the first center 141 is smaller than the width away from the first center 141.

[0091] The specific implementation method and technical effects of the display panel manufacturing method of the present invention can be referred to the aforementioned embodiments of the display panel, and repeated details will not be repeated.

[0092] On the other hand, such as Figure 8 As shown, embodiments of the present invention also provide a display device, including the aforementioned display panel. This display device can be any product or component with display functionality, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0093] The specific implementation methods and technical effects of the display device of the present invention can be referred to the specific embodiments of the display panel described above, and repeated details will not be repeated.

[0094] In summary, the display panel, the method for manufacturing the display panel, and the display device of the present invention, by using a first repeating unit 14 consisting of four first light-emitting materials 131 of the same color, two each along the first direction 1X and the second direction 1Y, and ensuring that the positions of the four first light-emitting materials 131 are all close to the center of the first repeating unit 14, can reduce the risk of color mixing between adjacent first light-emitting materials 131 of different colors when the mask plate is misaligned in any direction during the evaporation process of the first light-emitting material 131.

[0095] On the other hand, such as Figure 9 , Figure 10 and Figure 11 As shown, an embodiment of the present invention provides a display panel, which includes a second substrate 21, a second pixel definition layer 22 and a third light-emitting unit layer 23.

[0096] The second pixel definition layer 22 is located on one side of the second substrate 21. The second pixel definition layer 22 includes a plurality of second pixel definition openings 221 for partially accommodating the third light-emitting unit layer 23.

[0097] The third light-emitting unit layer 23 is located on the side of the second pixel definition layer 22 facing away from the second substrate 21. The third light-emitting unit layer 23 includes multiple third light-emitting materials 231, each of which is partially located within a second pixel definition opening 221. Each third light-emitting material 231 includes a second light-emitting area 2311 and a first compensation area 2312, with the first compensation area 2312 surrounding the second light-emitting area 2311. Each third light-emitting material 231 covers a second pixel definition opening 221 in the planar view. It is understood that the area of ​​the effective electrode is equal to the area of ​​the second pixel definition opening 221. The third light-emitting materials 231 include three colors of light-emitting materials, specifically red, green, and blue. Furthermore, the third light-emitting material 231 also includes a non-light-emitting area to ensure that the first light-emitting material 131 covers the first pixel definition opening.

[0098] like Figure 12 As shown, specifically, four adjacent third luminescent materials 231 of the same color constitute the second repeating unit 24. The second repeating unit 24 includes two adjacent third luminescent materials 231 of the same color along the third direction 2X and two adjacent third luminescent materials 231 of the same color along the fourth direction 2Y. The third direction 2X intersects the fourth direction 2Y. Depending on different pixel arrangements and the shape of the third luminescent materials 231, the second repeating unit 24 can include various forms. Figure 12 The example described uses only one second repeating unit 24 of a third luminescent material 231 of a single color, and is not intended to be limiting. Furthermore, Figure 12 Taking a display panel with a Delta pixel arrangement as an example, any pixel arrangement where the number of the three colors of the third luminescent material 231 is equal can adopt the above-described settings of this application. When the number of the three colors of the third luminescent material 231 is not equal, for example, when the display panel adopts a "2-in-1" pixel arrangement, the two green third luminescent materials 231 in one pixel can be defined as a whole as the second repeating unit 24. That is, in this case, the second repeating unit 24 corresponding to the green third luminescent material 231 has eight green third luminescent materials 231. In other embodiments, the number of third luminescent materials 231 included in the second repeating unit 24 can be determined according to the specific pixel arrangement, and this application does not impose any restrictions. In addition, the third direction 2X and the fourth direction 2Y can be perpendicular or not perpendicular, and this application does not impose any restrictions on this.

[0099] Furthermore, in the second repeating unit 24, the four third luminescent materials 231 have a second center 241, and the first compensation regions 2312 of the four third luminescent materials 231 are centrally symmetrical based on the second center 241. This arrangement, by setting first compensation regions 2312 for the third luminescent materials 231 and using four third luminescent materials 231 of the same color (two each along the third direction 2X and the fourth direction 2Y) as a second repeating unit 24, and ensuring that the first compensation regions 2312 of the four third luminescent materials 231 are centrally symmetrical, ensures that during the vapor deposition process of the third luminescent materials 231, when the mask plate is misaligned in any direction (e.g., the third direction 2X or the fourth direction 2Y), at least two of the first compensation regions 2312 of the third luminescent materials 231 in each of the second repeating units 24 can be used to compensate for the misalignment of the mask plate, thereby reducing the risk of color mixing during the vapor deposition of adjacent first luminescent materials 131 of different colors.

[0100] Furthermore, the above-mentioned settings can also reduce the four-way color shift characteristic of the display panel and reduce the display difference at different angles. Specifically, the display effect of the display panel may differ when viewed from different directions, which is the four-way color shift characteristic of the display panel. The four-way color shift characteristic of the display panel is due to the asymmetry of the internal film structure of the display panel, resulting in different emitted light in different directions. For example, the four-way asymmetry of the scanning traces, data traces, or power traces inside the display panel, or the four-way asymmetry of the pixel positions, can all lead to the four-way color shift characteristic of the display panel. Because the film layer of the first light-emitting material 131 is recessed around the first anode via 1313, the interference of the light emission direction of the first light-emitting material 131 near the first anode via 1313 and the reflection of ambient light will both cause the four-way color shift of the display panel. In this embodiment, since the first compensation areas 2312 of the four third light-emitting materials 231 are centrally symmetrical based on the second center 241, the arrangement of the first compensation areas 2312 is the same when viewed from different directions of the display panel. Therefore, the light emission directions of the first compensation areas 2312 when viewed from different directions of the display panel are similar, and the reflection of ambient light is similar, thereby reducing the four-way color shift characteristics of the display panel and reducing the display difference at different angles of the display panel.

[0101] Continue to refer to Figure 12 In some embodiments, in the second repeating unit 24, the first compensation regions 2312 of the four third luminescent materials 231 are also symmetrical along the third direction 2X and / or the fourth direction 2Y, respectively. Specifically, the quadrilateral formed by connecting the center points of the four third luminescent materials 231 in the second repeating unit 24 can be a general rhombus or a square. Figure 12(Taking a square as an example), this makes the second repeating unit 24 symmetrical along the third direction 2X and / or the fourth direction 2Y. The above arrangement can simplify the design complexity of the display panel, thereby reducing the manufacturing time of the display panel.

[0102] It should be noted that the positional relationship between the first compensation area 2312 and the second light-emitting area 2311 may or may not be connected; the first compensation area 2312 may or may not emit light, and this application does not impose any restrictions on this. The following sections will explain the above situations separately:

[0103] like Figure 13 and Figure 14 As shown, in some alternative embodiments, each third luminescent material 231 includes four first compensation regions 2312 and a redundant region 2313. The first compensation regions 2312 are not connected to the second luminescent regions 2311, and the redundant region 2313 is located between the second luminescent regions 2311 and the first compensation regions 2312, with the four first compensation regions 2312 being centrally symmetrical. It is understood that in this embodiment, the first compensation regions 2312 are located on the periphery of the entire third luminescent material 231, and the first compensation regions 2312 and the redundant regions 2313 do not emit light when the display panel is powered on. That is, not all parts of each first luminescent material 131 emit light. The luminescent area of ​​the third luminescent material 231 in this application, which is also the area of ​​the second luminescent region 2311, is the same as the luminescent area of ​​luminescent materials in the prior art. The area of ​​the second luminescent region 2311 is the size of the effective electrode area. Furthermore, the first compensation region 2312 and the redundant region 2313 are redundant portions during the vapor deposition preparation of the third luminescent material 231, used to ensure that the third luminescent material 231 covers the second pixel definition opening 221. The four first compensation regions 2312 are centrally symmetrical, which simplifies the display panel design complexity and reduces the display panel manufacturing time. At the same time, the centrally symmetrical design of the first compensation region 2312 in each third luminescent material 231 can also reduce the four-directional color shift characteristics of the display panel and reduce the display difference at different angles.

[0104] Furthermore, in some embodiments, in the third luminescent material 231, the ratio of the width of the first compensation region 2312 to the equivalent diameter of the second luminescent region 2311 ranges from 5% to 30%. This arrangement allows the width of the first compensation region 2312 to offset any deviation error in any direction during the vapor deposition process of the third luminescent material 231, thereby reducing the risk of color mixing between adjacent first luminescent materials 131 of different colors, without making the first luminescent material 131 too large and increasing the risk of color mixing between adjacent first luminescent materials 131 of different colors. Specifically, the ratio range can be any value among 5%, 10%, 15%, 20%, 25%, or 30%, and this application does not limit this.

[0105] Continue to refer to Figure 11 and Figure 12 In some alternative embodiments, each third luminescent material 231 includes four first compensation regions 2312 and a redundant region 2313. The first compensation regions 2312 are connected to the second luminescent regions 2311, and the redundant regions 2313 surround the first compensation regions 2312, with the four first compensation regions 2312 being centrally symmetrical. It is understood that in this embodiment, the redundant region 2313 is located at the outermost periphery of the entire third luminescent material 231 and surrounds the second luminescent regions 2311 and the first compensation regions 2312. Both the first compensation regions 2312 and the second luminescent regions 2311 emit light when the display panel is powered on. That is, the luminescent area of ​​the third luminescent material 231 of this application is larger than the luminescent area of ​​luminescent materials in the prior art. The sum of the sizes of the second luminescent regions 2311 and the first compensation regions 2312 can also be the area of ​​the effective electrode. In this case, only the redundant region 2313 is a redundant portion during the vapor deposition preparation of the third luminescent material 231, used to ensure that the third luminescent material 231 covers the second pixel definition opening 221. The four first compensation regions 2312 are centrally symmetrical, which simplifies the design complexity of the display panel and reduces the manufacturing time. Simultaneously, the centrally symmetrical design of the first compensation region 2312 in each third luminescent material 231 can also reduce the four-directional color shift characteristics of the display panel, minimizing display differences at different angles.

[0106] Furthermore, in some embodiments, the second pixel definition opening 221 includes a main area and four second compensation areas. The main area overlaps with the second light-emitting area 2311 in a planar view, and the first compensation area 2312 overlaps with the second compensation areas in a planar view. It should be noted that the area of ​​the effective electrode is equal to the area of ​​the second pixel definition opening 221. The above design of the second pixel definition opening 221 is to match the aforementioned embodiment where the first compensation area 2312 is connected to the second light-emitting area 2311, and the first compensation area 2312 also emits light, thereby reducing the risk of color mixing in the display panel and reducing the four-way color shift characteristics of the display panel.

[0107] Furthermore, in some embodiments, within the second pixel-defined opening 221 area, the ratio of the width of the second compensation area to the equivalent diameter of the main body area ranges from 5% to 30%. It is understood that, since the main body area overlaps with the second light-emitting area 2311 in the planar view, and the first compensation area 2312 overlaps with the second compensation area in the planar view, the ratio of the width of the second compensation area to the equivalent diameter of the main body area is also the ratio of the equivalent diameters of the first compensation area 2312 and the second light-emitting area 2311. (Continuing to refer to...) Figure 11This is the ratio of W1 to the equivalent diameter of the second luminescent region 2311. This configuration ensures that during the evaporation of the third luminescent material 231, if the mask shifts in any direction, the width of the first compensation region 2312 can maximize the offset of the shift error, thereby reducing the risk of color mixing between adjacent first luminescent materials 131 of different colors, without making the first luminescent material 131 too large and increasing the risk of color mixing between adjacent first luminescent materials 131 of different colors. The specific range of this ratio can be any value among 5%, 10%, 15%, 20%, 25%, or 30%, and this application does not impose any limitation on this.

[0108] Continue to refer to Figure 12 In some embodiments, in each second repeating unit 24, the second anode via 2314 of the third luminescent material 231 is located in the first compensation region 2312 in the plan view, and the four second anode vias 2314 are centrally symmetrical. Furthermore, in this embodiment, the first compensation region 2312 is connected to the second luminescent region 2311. Since the fabrication of the first anode via 1313 requires drilling holes in the first luminescent material 131, the film layer of the first luminescent material 131 around the first anode via 1313 is recessed, and the film layer of the first luminescent material 131 near the first anode via 1313 is uneven. This results in the light emission direction of the first luminescent material 131 being chaotic, thus affecting the display effect of the display panel. Therefore, the central symmetry of the four second anode vias 2314 can reduce the four-directional color shift characteristics of the display panel and reduce the display difference at different angles. Specifically, because the film layer of the third luminescent material 231 is recessed around the second anode via 2314, the interference of the second anode via 2314 with the light emission direction of the third luminescent material 231 and the reflection of ambient light will cause four-way color shift in the display panel. Therefore, the four second anode vias 2314 are arranged symmetrically to make the interference of the second anode vias 2314 with the light emission direction of the third luminescent material 231 and the reflection of ambient light symmetrical, thereby reducing the four-way color shift characteristics of the display panel and reducing the display difference at different angles.

[0109] Continue to refer to Figure 14In some embodiments, in each second repeating unit 24, the second anode via 2314 of the third luminescent material 231 is located in the first compensation region 2312 in a plan view, and the four second anode vias 2314 are centrally symmetrical. Furthermore, in this embodiment, the first compensation region 2312 is not connected to the second luminescent region 2311. The fact that the second anode via 2314 is located in the redundancy region 2313 instead of the second luminescent region 2311 or the first compensation region 2312 can increase the area ratio of the second luminescent region 2311 and the first compensation region 2312 to the third luminescent material 231, that is, increase the area ratio of the luminescent region to the third luminescent material 231, thereby increasing the aperture ratio of the third luminescent material 231 and thus improving the brightness of the display panel. Because the fabrication of the second anode via 2314 requires drilling into the third luminescent material 231, the film layer of the third luminescent material 231 around the second anode via 2314 becomes recessed, and the film layer of the third luminescent material 231 near the second anode via 2314 is uneven. This results in a chaotic light emission direction from the third luminescent material 231, thus affecting the display effect of the display panel. Therefore, the second anode via 2314 is located in the redundancy region 2313 rather than the second luminescent region 2311 or the first compensation region 2312. This also avoids affecting the light emission direction of the third luminescent material 231, thereby improving the display effect of the display panel. Since the distance between the first compensation region 2312 and the second luminescent region 2311 is relatively large, placing the second anode via 2314 here also facilitates its fabrication. Furthermore, the four second anode vias 2314 are arranged symmetrically at the center, which makes the interference of the second anode vias 2314 on the light emission direction of the third light-emitting material 231 and the reflection of ambient light symmetrical, thereby reducing the four-way color shift characteristics of the display panel and reducing the display difference at different angles of the display panel.

[0110] Continue to refer to Figure 11 and Figure 13 In some embodiments, the width of the first compensation region 2312 of the third luminescent material 231 is 2–6 μm. That is... Figure 11 W1 and Figure 13 The value of W2 is 2 to 6 μm. This setting allows the width difference W1 or W2 to offset any deviation in the mask during the evaporation of the third luminescent material 231, thereby reducing the risk of color mixing during the evaporation of adjacent first luminescent materials 131 of different colors. Specifically, the width difference W1 or W2 can be any value among 2 μm, 3 μm, 4 μm, 5 μm, or 6 μm, and this application does not impose any limitation on this.

[0111] like Figure 15As shown, in some embodiments, the display panel further includes a third electrode layer 25, a fourth electrode layer 26, and a fourth light-emitting unit layer 27.

[0112] In this embodiment, the third electrode layer 25 is located on one side of the second pixel definition layer 22. The fourth electrode layer 26 is located on the side of the second pixel definition layer 22 that is different from the third electrode layer 25. The third light-emitting unit layer 23 and the fourth light-emitting unit layer 27 are located between the third electrode layer 25 and the fourth electrode layer 26. That is, in these embodiments, the display panel is a tandem device including two light-emitting unit layers. Because the tandem device includes two light-emitting unit layers, it requires two preparations of the light-emitting unit layers, thus requiring six vapor deposition processes for the three colors, further increasing the risk of color mixing.

[0113] The fourth light-emitting unit layer 27 includes multiple fourth light-emitting materials 271, each of which overlaps with a third light-emitting material 231 in the planar view. This arrangement allows the second light-emitting unit layer 17 to adopt the same design as the first light-emitting unit layer 13, thereby reducing the risk of color mixing in tandem devices. Further details will not be repeated.

[0114] The display panel of the present invention provides a first compensation area 2312 for the third light-emitting material 231, and uses four third light-emitting materials 231 of the same color, two each along the third direction 2X and the fourth direction 2Y, as a second repeating unit 24, and makes the first compensation areas 2312 of the four third light-emitting materials 231 centrally symmetrical. Thus, during the vapor deposition process of the third light-emitting material 231, when the mask plate is misaligned in any direction, at least two of the first compensation areas 2312 of the third light-emitting material 231 in the second repeating unit 24 can be used to compensate for the misalignment of the mask plate, thereby reducing the risk of color mixing during the vapor deposition of adjacent first light-emitting materials 131 of different colors.

[0115] On the other hand, such as Figure 16 As shown, embodiments of the present invention also provide a method for manufacturing a display panel, comprising:

[0116] S210, Provide a second substrate 21;

[0117] S220, A second pixel definition layer 22 is prepared on one side of the second substrate 21; wherein, the second pixel definition layer 22 includes a plurality of second pixel definition openings 221;

[0118] S230. A mask is provided, and a third light-emitting unit layer 23 is deposited on the side of the second pixel definition layer 22 opposite to the second substrate 21 through the mask.

[0119] The third light-emitting unit layer 23 includes multiple third light-emitting materials 231. Each third light-emitting material 231 includes a second light-emitting area 2311 and a first compensation area 2312. The first compensation area 2312 surrounds the second light-emitting area 2311. Each third light-emitting material 231 covers a second pixel-defined opening 221 in the planar view. Four adjacent third light-emitting materials 231 of the same color form a second repeating unit 24. The second repeating unit 24 includes two adjacent third light-emitting materials 231 of the same color along a third direction 2X and two adjacent third light-emitting materials 231 of the same color along a fourth direction 2Y. The third direction 2X intersects with the fourth direction 2Y. In the second repeating unit 24, the four third light-emitting materials 231 have a second center 241. The first compensation area 2312 of the four third light-emitting materials 231 is centrally symmetrical based on the second center 241.

[0120] The specific implementation method and technical effects of the display panel manufacturing method of the present invention can be referred to the aforementioned embodiments of the display panel, and repeated details will not be repeated.

[0121] On the other hand, such as Figure 17 As shown, embodiments of the present invention also provide a display device, including the aforementioned display panel. This display device can be any product or component with display functionality, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator.

[0122] The specific implementation methods and technical effects of the display device of the present invention can be referred to the specific embodiments of the display panel described above, and repeated details will not be repeated.

[0123] In summary, the display panel, the method for manufacturing the display panel, and the display device of the present invention, by setting a first compensation region 2312 for the third light-emitting material 231, and using two of each of the third direction 2X and the fourth direction 2Y, for a total of four third light-emitting materials 231 of the same color as a second repeating unit 24, and making the first compensation regions 2312 of the four third light-emitting materials 231 centrally symmetrical, can reduce the risk of color mixing during the evaporation of adjacent first light-emitting materials 131 of different colors when the mask plate is misaligned in any direction during the evaporation of the third light-emitting material 231.

[0124] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that, include: First substrate; A first pixel definition layer is located on one side of the first substrate, and the first pixel definition layer includes a plurality of first pixel definition openings; The first light-emitting unit layer is located on the side of the first pixel definition layer away from the first substrate. The first light-emitting unit layer includes a plurality of first light-emitting materials. The first light-emitting materials include a first light-emitting area and a first non-light-emitting area. The first non-light-emitting area surrounds the first light-emitting area. Each first light-emitting area covers a first pixel definition opening in the plan view. Wherein, four adjacent first luminescent materials of the same color are used as the first repeating unit. The first repeating unit includes two first luminescent materials of the same color that are adjacent along the first direction and two first luminescent materials of the same color that are adjacent along the second direction. The first direction intersects the second direction. In the first repeating unit, the four first luminescent materials have a first center, and the width of the first non-luminescent region of the first luminescent material near the first center is smaller than the width of the first non-luminescent region away from the first center. In each of the first repeating units, the first anode via corresponding to each of the first luminescent materials is located away from the first center in the first non-luminescent area of ​​the first luminescent material, and the four first anode vias are centrally symmetrical.

2. The display panel according to claim 1, characterized in that, Along the first direction and the second direction, the distance between the openings of the first pixels corresponding to two adjacent first light-emitting materials of the same color is equal, and the distance between two adjacent first light-emitting materials of the same color is arranged in an alternating pattern of large and small.

3. The display panel according to claim 1, characterized in that, Along the first direction and the second direction, the distance between two adjacent first light-emitting materials of the same color is equal, and the distance between the openings of the first pixels corresponding to two adjacent first light-emitting materials of the same color is arranged in an alternating pattern of large and small.

4. The display panel according to claim 1, characterized in that, The first repeating unit is centrally symmetrical about the first center.

5. The display panel according to claim 1, characterized in that, The first repeating unit is axially symmetric along the first direction and / or the second direction, respectively.

6. The display panel according to claim 1, characterized in that, The difference between the width of the first non-luminescent region of the first luminescent material at the location far from the first center and the width at the location near the first center is 2~6μm.

7. The display panel according to claim 1, characterized in that, Also includes: The first electrode layer is located on one side of the first pixel definition layer; The second electrode layer is located on the side of the first pixel definition layer that is different from the first electrode layer; The second light-emitting unit layer, wherein the first light-emitting unit layer and the second light-emitting unit layer are located between the first electrode layer and the second electrode layer; The second light-emitting unit layer includes a plurality of second light-emitting materials, and each of the second light-emitting materials overlaps with one of the first light-emitting materials in the planar view.

8. A method for manufacturing a display panel, characterized in that, include: Provide a first substrate; A first pixel definition layer is prepared on one side of the first substrate; wherein the first pixel definition layer includes a plurality of first pixel definition openings; A mask is provided, and a first light-emitting unit layer is deposited on the side of the first pixel definition layer opposite to the first substrate through the mask; The first light-emitting unit layer includes a plurality of first light-emitting materials, each of which includes a first light-emitting area and a first non-light-emitting area. The first non-light-emitting area surrounds the first light-emitting area, and each first light-emitting area covers a first pixel-defined opening in the planar view. The first repeating unit is defined by four adjacent first luminescent materials of the same color. The first repeating unit includes two first luminescent materials of the same color that are adjacent along a first direction and two first luminescent materials of the same color that are adjacent along a second direction. The first direction intersects with the second direction. In the first repeating unit, the four first luminescent materials have a first center, and the width of the first non-luminescent region of the first luminescent material near the first center is smaller than the width away from the first center; In each of the first repeating units, the first anode via corresponding to each of the first luminescent materials is located away from the first center in the first non-luminescent area of ​​the first luminescent material, and the four first anode vias are centrally symmetrical.

9. A display device, characterized in that, Includes the display panel according to any one of claims 1 to 7.

10. A display panel, characterized in that, include: Second substrate; The second pixel definition layer is located on one side of the second substrate, and the second pixel definition layer includes a plurality of second pixel definition openings; The third light-emitting unit layer is located on the side of the second pixel definition layer away from the second substrate. The third light-emitting unit layer includes a plurality of third light-emitting materials. The third light-emitting material includes a second light-emitting area and a first compensation area. The first compensation area surrounds the second light-emitting area. Each of the third light-emitting materials covers a second pixel definition opening in the planar view. The third luminescent material of four adjacent colors is used as the second repeating unit. The second repeating unit includes two adjacent third luminescent materials of the same color along a third direction and two adjacent third luminescent materials of the same color along a fourth direction. The third direction intersects with the fourth direction. In the second repeating unit, the four third luminescent materials have a second center, and the first compensation region of the four third luminescent materials is centrally symmetrical based on the second center; Each of the third luminescent materials includes four first compensation regions and a redundant region. The first compensation regions are not connected to the second luminescent regions. The redundant region is located between the second luminescent region and the first compensation region. The width of the first compensation region from the second luminescent region is greater than the width of the redundant region from the second luminescent region. The four first compensation regions are centrally symmetrical. Alternatively, each of the third luminescent materials includes four first compensation regions and a redundant region, the first compensation regions being connected to the second luminescent regions, the redundant regions surrounding the first compensation regions, the redundant regions being located at the outermost periphery of the entire third luminescent material and surrounding the second luminescent regions and the first compensation regions, and the four first compensation regions being centrally symmetrical.

11. The display panel according to claim 10, characterized in that, In the second repeating unit, the first compensation regions of the four third luminescent materials are also axially symmetrical along the third direction and / or the fourth direction, respectively.

12. The display panel according to claim 10, characterized in that, When the first compensation region and the second light-emitting region are not connected, in the third light-emitting material, the ratio of the width of the first compensation region to the equivalent diameter of the second light-emitting region is in the range of 5% to 30%.

13. The display panel according to claim 10, characterized in that, When the first compensation area is connected to the second light-emitting area, the second pixel defines an opening including a main area and four second compensation areas. The main area overlaps with the second light-emitting area in the plan view, and the first compensation area overlaps with the second compensation area in the plan view.

14. The display panel according to claim 13, characterized in that, When the first compensation area is connected to the second light-emitting area, the ratio of the width of the second compensation area to the equivalent diameter of the main body area in the second pixel defined opening area ranges from 5% to 30%.

15. The display panel according to claim 10, characterized in that, In each of the second repeating units, the second anode via of the third luminescent material is located in the first compensation region in the plan view, and the four second anode vias are centrally symmetrical.

16. The display panel according to claim 10, characterized in that, The width of the first compensation region of the third luminescent material is 2~6μm.

17. The display panel according to claim 10, characterized in that, Also includes: The third electrode layer is located on one side of the second pixel definition layer; The fourth electrode layer is located on the side different from the second pixel definition layer and the third electrode layer; A fourth light-emitting unit layer, wherein the third light-emitting unit layer and the fourth light-emitting unit layer are located between the third electrode layer and the fourth electrode layer; The fourth light-emitting unit layer includes multiple fourth light-emitting materials, and each of the fourth light-emitting materials overlaps with one of the third light-emitting materials in the planar view.

18. A method for manufacturing a display panel, characterized in that, include: Provide a second substrate; A second pixel definition layer is prepared on one side of the second substrate; wherein the second pixel definition layer includes a plurality of second pixel definition openings; A mask is provided, and a third light-emitting unit layer is deposited on the side of the second pixel definition layer opposite to the second substrate through the mask; The third light-emitting unit layer includes a plurality of third light-emitting materials, each of which includes a second light-emitting area and a first compensation area. The first compensation area surrounds the second light-emitting area, and each of the third light-emitting materials covers a second pixel-defined opening in the planar view. The third luminescent material of four adjacent colors is used as the second repeating unit. The second repeating unit includes two adjacent third luminescent materials of the same color along a third direction and two adjacent third luminescent materials of the same color along a fourth direction. The third direction intersects with the fourth direction. In the second repeating unit, the four third luminescent materials have a second center, and the first compensation region of the four third luminescent materials is centrally symmetrical based on the second center; Each of the third luminescent materials includes four first compensation regions and a redundant region. The first compensation regions are not connected to the second luminescent regions. The redundant region is located between the second luminescent region and the first compensation region. The width of the first compensation region from the second luminescent region is greater than the width of the redundant region from the second luminescent region. The four first compensation regions are centrally symmetrical. Alternatively, each of the third luminescent materials includes four first compensation regions and a redundant region, the first compensation regions being connected to the second luminescent regions, the redundant regions surrounding the first compensation regions, the redundant regions being located at the outermost periphery of the entire third luminescent material and surrounding the second luminescent regions and the first compensation regions, and the four first compensation regions being centrally symmetrical.

19. A display device, characterized in that, Includes the display panel according to any one of claims 10 to 17.

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