Display panel, preparation method thereof and display device

Abstract

The invention provides a display panel, a preparation method thereof and a display device, the display panel comprises a substrate, a plurality of light emitting devices and a plurality of first partition structures, the light emitting devices and the first partition structures are located on the substrate, the first partition structures correspond to the light emitting devices respectively and surround the corresponding light emitting devices, and each first partition structure is provided with at least one notch. For each light-emitting device and other adjacent light-emitting devices, a connecting line from the centroid of the light-emitting device to the centroid of the adjacent light-emitting device is a first line segment, and a part of the first line segment between the boundary of two adjacent light-emitting devices is a second line segment. For the light-emitting device and the corresponding first partition structure, the first partition structure is located on a virtual track in a closed ring shape, the virtual track intersects with the second line segment, and the ratio of the distance from the intersection point to the boundary of the light-emitting device to the length of the second line segment is a first numerical value. The centroid of each light-emitting device is equal to a first numerical value corresponding to a plurality of first line segments formed by centroids of all adjacent light-emitting devices.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and in particular, to a display panel, a method for manufacturing the same, and a display device. Background Art

[0002] An organic light-emitting diode (OLED) is an organic thin-film electroluminescent device. Due to its advantages such as simple manufacturing process, low cost, low power consumption, high brightness, wide viewing angle, high contrast, and flexible display, it has received great attention and has been widely used in electronic display products.

[0003] However, due to the design of its own structure, current electronic display products are difficult to further reduce the problem of lateral crosstalk while ensuring the display effect. Summary of the Invention

[0004] In a first aspect of the present disclosure, a display panel is provided. The display panel includes a substrate, a plurality of light-emitting devices located on the substrate, and a plurality of first partition structures. The first partition structures correspond to the light-emitting devices respectively and surround the corresponding light-emitting devices. The first partition structure has at least one notch. For each light-emitting device and an adjacent other light-emitting device, a line connecting the centroid of the light-emitting device to the centroid of the adjacent light-emitting device is a first line segment, and a part of the first line segment between the boundaries of the two adjacent light-emitting devices is a second line segment. For the light-emitting device and the corresponding first partition structure, the first partition structure is located on a closed-loop virtual trajectory, the virtual trajectory intersects the second line segment, and the ratio of the distance from the intersection point to the boundary of the light-emitting device to the length of the second line segment is a first value. The first values corresponding to the plurality of first line segments formed by the centroid of the light-emitting device and the centroids of all adjacent light-emitting devices are equal.

[0005] The first partition structure can partition the common film layer of each light-emitting device to reduce the lateral leakage current between adjacent light-emitting devices due to the common film layer, thereby alleviating the lateral crosstalk between the light-emitting devices. The setting of the notch can ensure that each light-emitting device can still receive the driving voltage. In the display panel, the distances between adjacent light-emitting devices may be different, and the setting of the first partition structure will affect the driving voltage received by the light-emitting devices. If the first partition structure is directly set to have a fixed distance from the boundary of the corresponding light-emitting device, it will be unfavorable to balance the degree of influence on the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, that is, the voltage drops at each light-emitting device will be unbalanced, resulting in uneven display in each area of the display panel. In the above solution of the present disclosure, the distance between the corresponding first partition structure and the light-emitting device is determined based on the distance between the light-emitting device and the adjacent light-emitting device. That is, on the side where the distance between the light-emitting device and the adjacent light-emitting device is larger, the distance between the light-emitting device and the corresponding first partition structure is also larger. Correspondingly, on the side where the distance between the light-emitting device and the adjacent light-emitting device is smaller, the distance between the light-emitting device and the corresponding first partition structure is also smaller, so as to balance the degree of influence on the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, and solve the problem of uneven display in each area of the display panel.

[0006] In a specific embodiment of the first aspect of the present disclosure, two opposite first partition structures are arranged in the area between adjacent light-emitting devices and not directly opposite to the notch. In this way, the blocking effect of the first partition structure on the leakage current between each light-emitting device can be improved, so as to further alleviate the problem of lateral crosstalk between the light-emitting devices.

[0007] In a specific embodiment of the first aspect of the present disclosure, the light-emitting devices are classified into multiple types with different light-emitting wavelengths, and the first values determined by the light-emitting devices with different light-emitting wavelengths and the corresponding first partition structures are equal.

[0008] In another specific embodiment of the first aspect of the present disclosure, the light-emitting devices are classified into multiple types with different light-emitting wavelengths, and the smaller the light-emitting wavelength of the light-emitting device, the smaller the first value determined by the corresponding first partition structure. The light-emitting device with a smaller light-emitting wavelength requires a larger driving voltage, and thus is more likely to flow current to other surrounding light-emitting devices to cause crosstalk. In this technical solution, for the light-emitting device with a larger driving voltage, the distance between the first partition structure and the light-emitting device is reduced to improve the blocking effect of the first partition structure on the light-emitting device, so as to reduce the leakage current flowing out of the light-emitting device.

[0009] In another specific embodiment of the first aspect of the present disclosure, the light-emitting devices are at least classified into a first type of light-emitting device, a second type of light-emitting device, and a third type of light-emitting device. The light-emitting wavelengths of the first type of light-emitting device, the second type of light-emitting device, and the third type of light-emitting device decrease in sequence. The first numerical values determined by the first partition structures corresponding to the first type of light-emitting device and the second type of light-emitting device are equal, and the first numerical value determined by the first partition structure corresponding to the third type of light-emitting device is less than the first numerical value determined by the first partition structure corresponding to the first type of light-emitting device. The driving voltages of the first type of light-emitting device and the second type of light-emitting device are relatively small, and the voltage difference between the two is also relatively small. That is, even if a leakage current is generated between the first type of light-emitting device and the second type of light-emitting device, the leakage current is relatively small. Therefore, the above solution of the present disclosure can be adopted for the first partition structure around the third type of light-emitting device with the greatest risk of generating leakage current, so as to control the leakage current while minimizing the impact of the setting of the first partition structure on the voltage drop.

[0010] In a specific embodiment of the first aspect of the present disclosure, the length of the first line segment determined by the centroid of the light-emitting device and the centroids of at least two adjacent light-emitting devices is different. In this way, based on the different distances between the light-emitting device and the adjacent light-emitting devices, each part of the corresponding first partition structure and the different distances of the light-emitting device are determined, so as to balance the degree of influence of the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, and solve the problem of uneven display in each area of the display panel.

[0011] In a specific embodiment of the first aspect of the present disclosure, for at least some of the light-emitting devices, the intersection point of the first line segment with the maximum length corresponding to the light-emitting device and the corresponding virtual trajectory is located in the gap of the first partition structure corresponding to the light-emitting device. The larger the distance between adjacent light-emitting devices, the smaller the lateral leakage current generated between the two light-emitting devices. Based on this, setting the gap of the first partition structure at the position with the largest distance can ensure that each light-emitting device can receive the driving voltage through the position of the gap while maintaining the effect of the first partition structure blocking the lateral leakage current.

[0012] Optionally, for all the light-emitting devices, the intersection point of the first line segment with the maximum length corresponding to the light-emitting device and the corresponding virtual trajectory is located in the gap of the first partition structure corresponding to the light-emitting device.

[0013] Optionally, the gap of the first partition structure corresponds to the corner of the light-emitting device.

[0014] In a specific embodiment of the first aspect of the present disclosure, the ratio of the length occupied by the notch of the first partition structure on the virtual trajectory to the length of the virtual trajectory is a second value, and the second value is 1% to 20%. Within this numerical range, the blocking effect of the first partition structure on the lateral leakage current and the voltage drop (impedance increase) effect on the driving voltage of the light-emitting device can be balanced.

[0015] In a specific embodiment of the first aspect of the present disclosure, the light-emitting devices are classified into multiple types with different light-emitting wavelengths, and the larger the second value corresponding to the first partition structure of the light-emitting device with a smaller light-emitting wavelength. The smaller the light-emitting wavelength of the light-emitting device, the higher the required driving voltage. The larger the second value, the more the voltage drop (impedance increase) effect of the first partition structure on the driving voltage of the light-emitting device can be reduced, so as to ensure the driving voltage of the light-emitting device and alleviate the influence of the setting of the first partition structure on the display effect of the display panel.

[0016] In a specific embodiment of the first aspect of the present disclosure, the orthographic projection of the first partition structure on the substrate is located within the orthographic projection of the corresponding virtual trajectory on the substrate.

[0017] In another specific embodiment of the first aspect of the present disclosure, the orthographic projection of the first partition structure on the substrate is wavy. The wavy setting can effectively reduce the width of the leakage current channel between the first partition structure and the corresponding light-emitting device, thereby further reducing the leakage current.

[0018] In a specific embodiment of the first aspect of the present disclosure, the display panel may further include a plurality of second partition structures. A second partition structure is provided between at least some of the first partition structures that are adjacent to each other and have notches opposite to each other, and is opposite to the notch of the first partition structure.

[0019] In the above solution, the second partition structure can block the leakage current between the light-emitting devices with opposite notches to further reduce the leakage current.

[0020] In a specific embodiment of the first aspect of the present disclosure, for light-emitting devices that are adjacent to each other and have different light-emitting wavelengths, the notches of the corresponding first partition structures are opposite to each other, and a second partition structure is provided between the adjacent light-emitting devices. It is easier to generate leakage current between light-emitting devices with different light-emitting wavelengths, and the setting of the second partition structure can block this leakage current.

[0021] In a specific embodiment of the first aspect of the present disclosure, for the notches that are opposite and adjacent to each other with respect to the second partition structure, the line connecting the ends of one notch and the ends of the other notch passes through the second partition structure. In this way, the coverage degree of the second partition structure on the notches can be ensured, so as to ensure that there is no direct current leakage path between adjacent light-emitting devices even at the positions where the notches are opposite, thereby further reducing the leakage current between the light-emitting devices.

[0022] In a specific embodiment of the first aspect of the present disclosure, the length of the second partition structure is not less than the length occupied by the opposite notches on the virtual trajectory.

[0023] In a specific embodiment of the first aspect of the present disclosure, the light-emitting devices are classified into multiple types with different light-emitting wavelengths. For the second partition structure located between adjacent light-emitting devices with different light-emitting wavelengths, the distance from the second partition structure to the boundary of the light-emitting device with a shorter light-emitting wavelength is greater than the distance to the boundary of the light-emitting device with a longer light-emitting wavelength. The smaller the light-emitting wavelength of the light-emitting device, the greater the driving voltage required, and thus it is easier to flow current to other surrounding light-emitting devices to cause crosstalk. In this technical solution, for the light-emitting device with a larger driving voltage, the distance between the second partition structure and the light-emitting device is reduced to improve the blocking effect of the second partition structure on the light-emitting device, so as to reduce the leakage current flowing out of the light-emitting device.

[0024] In a specific embodiment of the first aspect of the present disclosure, the orthographic projection of the second partition structure on the substrate is one of a straight line segment shape and a wavy shape. The wavy setting can effectively reduce the width of the leakage current path between the second partition structure and the corresponding light-emitting device, thereby further reducing the leakage current.

[0025] In a specific embodiment of the first aspect of the present disclosure, the light-emitting devices are classified into the first type of light-emitting devices, the second type of light-emitting devices, and the third type of light-emitting devices. The light-emitting wavelengths of the first type of light-emitting devices, the second type of light-emitting devices, and the third type of light-emitting devices decrease in sequence. The light-emitting devices are arranged in multiple rows and multiple columns. The first type of light-emitting devices and the third type of light-emitting devices are arranged in the same row, and the first type of light-emitting devices and the third type of light-emitting devices in the same row are arranged alternately. The row where the first type of light-emitting devices and the third type of light-emitting devices are located and the row where the second type of light-emitting devices are located are arranged alternately along the column direction. The first type of light-emitting devices and the third type of light-emitting devices are arranged in the same column, and the first type of light-emitting devices and the third type of light-emitting devices in the same column are arranged alternately. The column where the first type of light-emitting devices and the third type of light-emitting devices are located and the row where the second type of light-emitting devices are located are arranged alternately along the row direction. In the non-edge area of the display panel, the first type of light-emitting device is adjacent to four second type of light-emitting devices located in adjacent rows and adjacent columns respectively, adjacent to two third type of light-emitting devices in the same row and different columns, and adjacent to two third type of light-emitting devices in the same column and different rows.

[0026] In a specific embodiment of the first aspect of the present disclosure, for the first type of light-emitting devices and the third type of light-emitting devices that are in the same line and adjacent to each other, the notch of the first partition structure corresponding to the first type of light-emitting devices is opposite to the notch of the first partition structure corresponding to the third type of light-emitting devices, and the second partition structure is located between the first type of light-emitting devices and the third type of light-emitting devices that are in the same line and adjacent to each other.

[0027] In a specific implementation of the first aspect of the present disclosure, the display panel may further include a pixel defining layer, the pixel defining layer includes a plurality of pixel openings, and the pixel openings define boundaries of the light-emitting device.

[0028] In a specific embodiment of the first aspect of the present disclosure, the pixel opening includes a plurality of grooves, and the grooves serve as the first partition structure and / or the second partition structure.

[0029] Optionally, the light emitting device comprises a first electrode, a light emitting functional layer and a second electrode stacked in sequence on the substrate, and the depth of the groove is greater than the thickness of the light emitting functional layer.

[0030] Optionally, the orthographic projection of the bottom surface of the groove on the substrate is located within the orthographic projection of the opening of the groove on the substrate, so that the side surface of the groove is an inclined surface.

[0031] Optionally, the angle between the inclined surface and the bottom surface of the groove is not less than 50 degrees. In this way, in the process of evaporating the film layer of the light-emitting device, the angle can ensure that the evaporated film layer will be disconnected at the side wall of the groove to reduce the risk of lateral crosstalk between light-emitting devices.

[0032] Optionally, the display panel also includes a transition portion corresponding to the first electrodes respectively, the first electrode and the corresponding transition portion are in the same layer and are connected to each other, the substrate includes a pixel driving circuit, the main body of the first electrode is connected to the pixel driving circuit through the transition portion, and the orthographic projection of the transition portion on the substrate is outside the orthographic projection of the first partition structure and the second partition structure on the substrate.

[0033] Optionally, a portion of the orthographic projection of the adapter portion on the substrate is located within the orthographic projection of the notch of the first partition structure on the substrate.

[0034] In another specific embodiment of the first aspect of the present disclosure, the first partition structure and / or the second partition structure includes a first part and a second part, the first part is located between the second part and the pixel defining layer, and the orthographic projection of the end of the first part facing the second part on the substrate is located within the orthographic projection of the second part on the substrate.

[0035] The second aspect of the present disclosure provides a method for manufacturing a display panel, the manufacturing method including: obtaining a substrate, on which a plurality of light-emitting devices are arranged; selecting any one of the light-emitting devices as a target light-emitting device, and using the other light-emitting devices adjacent to the target light-emitting device as reference light-emitting devices; connecting the centroid of the target light-emitting device and the centroid of the reference light-emitting device to obtain a first line segment, and the part of the first line segment located at the boundary of the target light-emitting device and the boundary of the reference light-emitting device is a second line segment; finding a reference point on the second line segment, wherein the ratio of the distance from the reference point to the boundary of the target light-emitting device to the length of the second line segment is a first value; obtaining the reference points on the first line segment formed by the centroid of the target light-emitting device and the centroids of all adjacent reference light-emitting devices around it, and fitting the reference points to obtain a virtual trajectory, the virtual trajectory being a closed loop surrounding the target light-emitting device; setting a first reference partition structure based on the virtual trajectory, the first reference partition structure being a closed loop and passing through all the reference points; setting a notch at at least one position on the first reference partition structure to obtain a first partition structure.

[0036] In the display panel obtained by the above manufacturing method, the distance between the corresponding first partition structure and the light-emitting device is determined based on the distance between the light-emitting device and the adjacent light-emitting device, that is, on the side where the distance between the light-emitting device and the adjacent light-emitting device is larger, the distance between the light-emitting device and the corresponding first partition structure is also larger, and correspondingly, on the side where the distance between the light-emitting device and the adjacent light-emitting device is smaller, the distance between the light-emitting device and the corresponding first partition structure is also smaller, so as to balance the degree of influence on the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, and solve the problem of uneven display in each area of the display panel.

[0037] In another specific embodiment of the first aspect of the present disclosure, the manufacturing method further includes: selecting a first target partition structure from the first partition structures, wherein the notches of adjacent first target partition structures face each other, and the light-emitting wavelengths of the corresponding light-emitting devices are different; setting a second partition structure between the notches of adjacent first target partition structures. In the display panel obtained by this manufacturing method, the second partition structure can block the leakage current between the light-emitting devices with opposite notches, so as to further reduce the leakage current.

[0038] The second aspect of the present disclosure provides a display device, which includes the display panel in the first aspect above, or the display panel obtained by the manufacturing method in the second aspect above. Description of the Drawings

[0039] Figure 1 It is a schematic plan view of a display panel provided by an embodiment of the present disclosure.

[0040] Figure 2 is Figure 1An enlarged view of region S of the display panel in one design, which shows the pixel arrangement in this region.

[0041] Figure 3 is Figure 2 An enlarged view of the partial structure shown, which does not show the first partition structure.

[0042] Figure 4 is Figure 2 An enlarged view of the partial structure shown, which shows the first partition structure.

[0043] Figure 5 is Figure 2 A cross-sectional view of the display panel along M1-N1.

[0044] Figure 6 is Figure 2 A cross-sectional view of the display panel along M2-N2.

[0045] Figure 7 is Figure 1 An enlarged view of region S of the display panel in another design, which shows the pixel arrangement in this region.

[0046] Figure 8 An enlarged view of the partial structure of the display panel provided by an embodiment of the present disclosure in another design, which is compared with Figure 4 the structure shown.

[0047] Figure 9 is Figure 8 A schematic diagram of the working principle of the structure shown.

[0048] Figure 10A is Figure 1 An enlarged view of region S of the display panel in one design, which shows the pixel arrangement in this region.

[0049] Figure 10B is Figure 1 An enlarged view of region S of the display panel in one design, which is compared with Figure 10A to show another pixel arrangement in this region.

[0050] Figure 11 is Figure 10A An enlarged view of the partial structure shown, which shows the first partition structure and the second partition structure.

[0051] Figure 12 is Figure 10A and Figure 10B A cross-sectional view of the display panel along M3-N3.

[0052] Figure 13 is Figure 10A andFigure 10B Cross-sectional view of the display panel along M4-N4.

[0053] Figure 14A It is a cross-sectional view of a partial area of a display panel provided by an embodiment of the present disclosure under another design, which is compared with Figure 13 the shown structure.

[0054] Figure 14B It is a cross-sectional view of a partial area of a display panel provided by an embodiment of the present disclosure under another design, which is compared with Figure 13 the shown structure.

[0055] Figure 15A It is a cross-sectional view of a partial area of a display panel provided by an embodiment of the present disclosure under another design.

[0056] Figure 15B It is a plan view of a partial area of a display panel provided by an embodiment of the present disclosure under another design.

[0057] Figure 16 It is a flowchart of a method for manufacturing a display panel provided by an embodiment of the present disclosure.

[0058] Figures 17A to 17D It corresponds to Figure 16 the structural schematic diagram of the shown manufacturing method.

[0059] Figure 18 It is a flowchart of a method for manufacturing a display panel provided by an embodiment of the present disclosure.

[0060] Description of reference numerals:

[0061] 10 - Display panel; 11 - Display area; 12 - Non-display area;

[0062] 100 - Substrate;

[0063] 200 - Light-emitting device; 210 - First electrode; 230 - Light-emitting functional layer; 220 - Second electrode; 231 - First functional layer; 232 - Light-emitting layer;

[0064] 310 - First partition structure; 311 - Notch; 320 - Second partition structure; 301 - Virtual track;

[0065] 400 - Pixel defining layer; 401 - Pixel opening;

[0066] L1 - First line segment; L2 - Second line segment; Qs - Reference point. Detailed implementation manners

[0067] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this specification.

[0068] In a display panel, the driving voltages of sub-pixels (the physical structure is the following light-emitting device) that emit different colors of light are different. Therefore, when driving the display panel, current crosstalk occurs through some common structures due to the voltage difference between adjacent sub-pixels, resulting in the light-emitting brightness of some sub-pixels being higher than the preset brightness, or the sub-pixels cannot be turned off (for example, cannot be adjusted to the dark state, for example, the dark state is zero gray level). These situations will all lead to poor display images.

[0069] At least one embodiment of the present disclosure provides a display panel, a manufacturing method thereof, and a display device to at least solve the above technical problems. The display panel includes a substrate, a plurality of light-emitting devices located on the substrate, and a plurality of first partition structures. The first partition structures correspond to the light-emitting devices respectively and surround the corresponding light-emitting devices. The first partition structure has at least one notch. For each light-emitting device and adjacent other light-emitting devices, the line connecting the centroid of the light-emitting device to the centroid of the adjacent light-emitting device is the first line segment, and the part of the first line segment between the boundaries of the two adjacent light-emitting devices is the second line segment. For the light-emitting device and the corresponding first partition structure, the first partition structure is located on a closed-loop virtual trajectory, the virtual trajectory intersects the second line segment, and the ratio of the distance from the intersection point to the boundary of the light-emitting device to the length of the second line segment is the first value. The first values corresponding to the first line segments formed by the centroid of the light-emitting device and the centroids of all adjacent light-emitting devices are equal.

[0070] The first partition structure can partition the common film layer of each light-emitting device to reduce the lateral leakage current between adjacent light-emitting devices due to the common film layer, thereby alleviating the lateral crosstalk between the light-emitting devices. The notch can ensure that each light-emitting device can still receive the driving voltage. In the display panel, the distances between adjacent light-emitting devices may be different, and the setting of the first partition structure will affect the driving voltage received by the light-emitting devices. If the first partition structure is directly set to have a fixed distance from the boundary of the corresponding light-emitting device, it will be unfavorable to balance the influence degree of the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, that is, the voltage drops at each light-emitting device will be unbalanced, resulting in uneven display in each area of the display panel. In the above solution of the present disclosure, the distance between the corresponding first partition structure and the light-emitting device is determined based on the distance between the light-emitting device and the adjacent light-emitting device. That is, on the side where the distance between the light-emitting device and the adjacent light-emitting device is larger, the distance between the light-emitting device and the corresponding first partition structure is also larger. Correspondingly, on the side where the distance between the light-emitting device and the adjacent light-emitting device is smaller, the distance between the light-emitting device and the corresponding first partition structure is also smaller, so as to balance the influence degree of the driving voltage caused by the setting of the first partition structure at the location of each light-emitting device, and solve the problem of uneven display in each area of the display panel.

[0071] Next, the structure of the display panel according to at least one embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, in these drawings, a spatial rectangular coordinate system is established based on the substrate in the display panel to intuitively present the positional relationship of each component in the display panel. In this spatial rectangular coordinate system, the X-axis and the Y-axis are parallel to the plane where the substrate is located, and the Z-axis is perpendicular to the plane where the substrate is located.

[0072] As Figures 1 to 6 shown, the display panel 10 includes a display area 11 and a non-display area 12 surrounding the display area 11. Sub-pixels that emit different color lights, such as R, G, and B, are arranged in the display area 11. It should be noted that in some embodiments of the present disclosure, some of the traces in the non-display area 12 can be arranged into the display area 11, so that the non-display area 12 can be designed as a single-sided border.

[0073] The physical structure of the display panel 10 includes a substrate 100, and a plurality of light-emitting devices 200 and a plurality of first partition structures 310 located on the substrate 100. The light-emitting device 200 is the physical light-emitting structure of the sub-pixel.

[0074] The first partition structure 310 corresponds to the light-emitting device 200 respectively and surrounds the corresponding light-emitting device 200. The first partition structure 310 has at least one notch 311. For each light-emitting device 200 and the adjacent other light-emitting devices 200, the centroid of the light-emitting device 200 (for exampleFigure 3 The line connecting the centroid Q1) in Figure 3 to the centroids (such as Q2 to Q9) of adjacent light-emitting devices 200 is the first line segment L1, and the part of the first line segment L1 that lies between the boundaries of two adjacent light-emitting devices 200 is the second line segment L2. For the light-emitting device 200 and the corresponding first partition structure 310, the first partition structure 310 is located on a closed-loop virtual trajectory 301, the virtual trajectory 301 intersects the second line segment L2, and the ratio of the distance L3 from the intersection point to the boundary of the light-emitting device 200 to the length of the second line segment L2 is the first numerical value. The first numerical values corresponding to the multiple first line segments L1 formed by the centroid of the light-emitting device 200 and the centroids of all adjacent light-emitting devices 200 are equal. The design process of the virtual trajectory 301 and the first partition structure 310 can be referred to the relevant descriptions in the embodiments shown below Figures 17A to 17D and will not be elaborated here.

[0075] In the embodiments of the present disclosure, the first numerical value can be from 1 / 5 to 1 / 3. In this way, while ensuring an appropriate distance between the first partition structure 310 and the light-emitting device 200 to ensure the partitioning effect of the first partition structure 310, it is possible to avoid an overly close distance between the first partition structure 310 and the light-emitting device 200, which may have an adverse effect on the formation process of the light-emitting device 200.

[0076] In the embodiments of the present disclosure, as Figure 5 shown, the light-emitting device 200 includes a first electrode 210, a second electrode 220, and a light-emitting functional layer 230 that are sequentially stacked on a substrate 100, and the first electrode 210, the light-emitting functional layer 230, and the second electrode 220 are sequentially stacked on the substrate 100.

[0077] The light-emitting functional layer 230 includes a first functional layer 231, a light-emitting layer 232, and a second functional layer 233. In the manufacturing process of the light-emitting device 200, the first functional layer 231 and the second functional layer 233 of each light-emitting device 200 are prepared synchronously. For example, a film layer is deposited over the entire surface of the substrate 100 to form the first functional layer 231 and the second functional layer 233 at the positions where each first electrode 210 is located. Therefore, the first functional layer 231 and the second functional layer 233 are actually common film layers.

[0078] For example, the first functional layer 231 may include a hole injection layer, a hole transport layer, an electron blocking layer, etc., and the second functional layer 233 may include a hole blocking layer, an electron transport layer, an electron injection layer, etc.

[0079] The conductivity of the light-emitting functional layer 230, especially the first functional layer 231 including hole materials therein, is relatively high. Thus, when driving each light-emitting device 200, due to the problem of driving voltage difference, the high-voltage light-emitting device 200 will output current to the low-voltage light-emitting device 200. This current will flow along the light-emitting functional layer 230 and thus does not participate in light emission, that is, this current is a lateral leakage current. This leakage current will reduce the lifespan of the light-emitting device 200 and degrade the display effect of the display panel (especially the image effect at low gray levels). The setting of the first partition structure 310 can break the continuity of the light-emitting functional layer 230, thereby reducing the lateral leakage current.

[0080] It should be noted that the second electrodes 220 of adjacent light-emitting devices 200 are connected to each other to form a common electrode. The setting of the first partition structure 310 may actually also break the second electrode 220 or degrade the film quality of the second electrode 220. The setting of the notch 311 of the first partition structure 310 can ensure that the second electrodes 220 of each light-emitting device 200 can still be connected to each other to form a common electrode.

[0081] Such as Figure 3 and Figure 4As shown, the distances between adjacent light-emitting devices 200 (e.g., the distance from centroid Q1 to centroid Q2 and the distance from centroid Q1 to centroid Q6) may be different, and the setting of the first partition structure 310 will affect the driving voltage received by the light-emitting device 200. If the first partition structure 310 is directly set to have a fixed spacing from the boundary of the corresponding light-emitting device 200 (the first partition structure 310 is parallel to the edge of the light-emitting device 200), it will be unfavorable to balance the degree of influence on the driving voltage caused by the setting of the first partition structure 310 at the location of each light-emitting device 200. That is, the voltage drops at each light-emitting device 200 will be unbalanced, resulting in uneven display in each area of the display panel. In the case of adopting the above solution of the present disclosure, the spacing between the corresponding first partition structure 310 and the light-emitting device 200 is determined based on the spacing between the light-emitting device 200 and the adjacent light-emitting device 200. That is, on the side where the spacing between the light-emitting device 200 and the adjacent light-emitting device 200 is larger (e.g., the distance from centroid Q1 to any one of centroids Q2 to Q5), the spacing L3 between the light-emitting device 200 and the corresponding first partition structure 310 (the spacing L3 on the first line segment L1 where centroids Q2 to Q5 are located) will also be larger. Correspondingly, on the side where the spacing between the light-emitting device 200 and the adjacent light-emitting device 200 is smaller (e.g., the distance from centroid Q1 to any one of centroids Q6 to Q9), the spacing L3 between the light-emitting device 200 and the corresponding first partition structure 310 (the spacing L3 on the first line segment L1 where centroids Q6 to Q9 are located) will also be smaller, thereby balancing the degree of influence on the driving voltage caused by the setting of the first partition structure 310 at the location of each light-emitting device 200 to solve the problem of uneven display in each area of the display panel.

[0082] It should be noted that in the embodiments of the present disclosure, on any side of the light-emitting device 200, if the distances between the light-emitting device 200 and at least two adjacent light-emitting devices 200 are not equal, then on this side, the first partition structure 310 is not parallel to the boundary of the corresponding light-emitting device 200.

[0083] In at least one embodiment of the present disclosure, as Figure 2 shown, in the area between adjacent light-emitting devices 200 and not facing the notch 311, two opposite first partition structures 310 are arranged. In this way, the blocking effect of the first partition structure 310 on the leakage current between each light-emitting device 200 can be improved to further alleviate the problem of lateral crosstalk between the light-emitting devices 200.

[0084] In some embodiments of the present disclosure, as Figure 2As shown, the light-emitting device 200 is classified into multiple types with different light-emitting wavelengths, such as R, G, and B. The first numerical value determined by the light-emitting device 200 with different light-emitting wavelengths and the corresponding first partition structure 310 is equal. For the specific design process, reference can be made to the relevant descriptions in the embodiments shown below Figures 17A to 17D and will not be elaborated here.

[0085] In some other embodiments of the present disclosure, the smaller the light-emitting wavelength of the light-emitting device 200, the smaller the first numerical value determined by the corresponding first partition structure 310. For example, the first numerical value corresponding to the light-emitting device R is greater than the first numerical value corresponding to the light-emitting device G, and the first numerical value corresponding to the light-emitting device G is greater than the first numerical value corresponding to the light-emitting device B. The smaller the light-emitting wavelength of the light-emitting device 200, the greater the required driving voltage, and thus it is easier for current to flow out to other surrounding light-emitting devices 200 to cause crosstalk. In this solution, for the light-emitting device 200 with a greater driving voltage, the distance L3 between the first partition structure 310 and the light-emitting device 200 is reduced to improve the blocking effect of the first partition structure 310 on the light-emitting device 200 and reduce the leakage current flowing out of the light-emitting device 200.

[0086] In still some other embodiments of the present disclosure, the light-emitting device 200 is at least classified into a first type of light-emitting device R, a second type of light-emitting device G, and a third type of light-emitting device B. The light-emitting wavelengths of the first type of light-emitting device R, the second type of light-emitting device G, and the third type of light-emitting device B decrease in sequence. The first numerical values determined by the first partition structures 310 corresponding to the first type of light-emitting device R and the second type of light-emitting device G are equal, and the first numerical value determined by the first partition structure 310 corresponding to the third type of light-emitting device B is less than the first numerical value determined by the first partition structure 310 corresponding to the first type of light-emitting device R. The driving voltages of the first type of light-emitting device R and the second type of light-emitting device G are relatively small, and the voltage difference between them is also relatively small. That is, even if leakage current is generated between the first type of light-emitting device R and the second type of light-emitting device G, the leakage current is relatively small. Therefore, the above solution of the present disclosure can be adopted for the first partition structure 310 around the third type of light-emitting device B with the greatest risk of generating leakage current to control the leakage current while minimizing the impact on the voltage drop caused by the setting of the first partition structure 310.

[0087] In at least one embodiment of the present disclosure, as Figure 3As shown, the centroid of the light-emitting device 200 has a different length from the first line segment L1 determined by the centroids of at least two adjacent light-emitting devices 200. Thus, based on the different distances (the length of the first line segment L1) between the light-emitting device 200 and the adjacent light-emitting devices 200, the different distances L3 between the respective parts of the corresponding first partition structure 310 and the light-emitting device 200 are determined, so as to balance the degree of influence on the driving voltage caused by the setting of the first partition structure 310 at the location of each light-emitting device 200, thereby solving the problem of uneven display in each area of the display panel.

[0088] In at least one embodiment of the present disclosure, as Figure 3 , Figure 4 and Figure 7 shown, for at least some of the light-emitting devices 200, the intersection of the first line segment L1 with the largest length corresponding to the light-emitting device 200 (for example, the first line segment L1 between the centroid Q1 and the centroid Q3 and the first line segment L1 between the centroid Q1 and the centroid Q4) and the corresponding virtual trajectory 301 is located in the notch 311 of the first partition structure 310 corresponding to the light-emitting device 200. The larger the distance between adjacent light-emitting devices 200, the smaller the lateral leakage current generated between the two light-emitting devices 200. Based on this, setting the notch 311 of the first partition structure 310 at the position with the largest distance can ensure that each light-emitting device 200 can receive the driving voltage through the position of the notch 311 while maintaining the effect of the first partition structure 310 blocking the lateral leakage current.

[0089] In some embodiments of the present disclosure, as Figure 3 and Figure 4 shown, the intersection of the first line segment L1 with the largest length corresponding to some of the light-emitting devices 200 (for example, where R and B are located) and the corresponding virtual trajectory 301 is located in the notch 311 of the first partition structure 310 corresponding to the light-emitting device 200; the intersection of the first line segment L1 with the largest length corresponding to another part of the light-emitting devices 200 (for example, where G is located) and the corresponding virtual trajectory 301 is located on the first partition structure 310 corresponding to the light-emitting device 200 (that is, it will not be located at the notch 311).

[0090] In some other embodiments of the present disclosure, as Figure 7 shown, for all the light-emitting devices 200, the intersection of the first line segment L1 with the largest length corresponding to the light-emitting device 200 and the corresponding virtual trajectory 301 is located in the notch 311 of the first partition structure 310 corresponding to the light-emitting device 200.

[0091] It should be noted that in the arrangement of the light-emitting devices 200, the spacing between the light-emitting devices 200 is larger in the direction of the corners, while the spacing between the light-emitting devices 200 opposite to the sides is relatively smaller, thereby increasing the pixel arrangement density. In this case, the notch of the first partition structure 310 can be selected to correspond to the corner of the light-emitting device 200.

[0092] In at least one embodiment of the present disclosure, as Figure 3 and Figure 4 shown, the ratio of the length occupied by the notch 311 of the first partition structure 310 on the virtual trajectory 301 (the length along the virtual trajectory 301) to the length of the virtual trajectory 301 is a second value, and the second value is 1% to 20%. Within this value range, the blocking effect of the first partition structure 310 on the lateral leakage current and the voltage drop (impedance increase) effect on the driving voltage of the light-emitting device 200 can be balanced.

[0093] In at least one embodiment of the present disclosure, as Figure 3 and Figure 4 shown, the smaller the light-emitting wavelength of the light-emitting device 200, the larger the corresponding second value of the first partition structure 310. The smaller the light-emitting wavelength of the light-emitting device 200, the higher the required driving voltage. The larger the second value, the more the voltage drop (impedance increase) effect of the first partition structure 310 on the driving voltage of the light-emitting device 200 can be reduced, so as to ensure the driving voltage of the light-emitting device 200 and alleviate the influence of the setting of the first partition structure 310 on the display effect of the display panel.

[0094] In the embodiments of the present disclosure, there is no limitation on the specific shape of the first partition structure 310, as long as it is formed based on the virtual trajectory 301 (it needs to pass through at least some intersections of the virtual trajectory 301 and the first line segment L1), and the specific shape can be designed according to actual process requirements.

[0095] In some embodiments of the present disclosure, as Figure 3 and Figure 4 shown, the orthographic projection of the first partition structure 310 on the substrate 100 is located within the orthographic projection of the corresponding virtual trajectory 301 on the substrate 100. In this way, the design and formation process of the first partition structure 310 can be simplified. It should be noted that in this embodiment, the width of the shape of the "orthographic projection of the first partition structure 310 on the substrate 100" is ignored and regarded as linear for comparison with the orthographic projection of the virtual trajectory 301. For example, the "orthographic projection of the first partition structure 310 on the substrate 100" can be regarded as the orthographic projection of the central dividing line along its extending trajectory on the substrate 100.

[0096] In some other embodiments of the present disclosure, as Figure 8As shown, the orthographic projection of the first partition structure 310 on the substrate 100 is wavy. The wavy setting can effectively reduce the width of the leakage current path between the first partition structure 310 and the corresponding light-emitting device 200, thereby further reducing the leakage current.

[0097] As Figure 9 shown in the conductive structure, the solid line is the boundary of the conductive structure without the wavy design, and the dashed line is the boundary of the conductive structure with the wavy design. When the current is transmitted from left to right, in the case without the wavy design, the width of the current transmission path is D1, while in the case with the wavy design, the width of the current transmission path will become D2. Since the current tends to be transmitted along the shortest path (with the minimum impedance), very little current will flow along the wavy boundary. In this case, D2 is obviously smaller than D1, that is, the wavy design actually reduces the width of the current transmission path, thereby reducing the generation of leakage current.

[0098] In at least one embodiment of the present disclosure, as Figures 10A to 13 shown, the display panel may further include a plurality of second partition structures 320. The second partition structures 320 are disposed between at least some of the first partition structures 310 that are adjacent to each other and have notches 311 facing each other, and are opposite to the notches 311 of the first partition structures 310. The second partition structures 320 can block the leakage current between the light-emitting devices 200 opposite to the notches 311 to further reduce the leakage current.

[0099] In at least one embodiment of the present disclosure, as Figures 10A to 13 shown, for the light-emitting devices 200 that are adjacent to each other and have different light-emitting wavelengths, the notches 311 of the corresponding first partition structures 310 face each other, and a second partition structure 320 is disposed between the adjacent light-emitting devices 200. Leakage current is more likely to occur between the light-emitting devices 200 with different light-emitting wavelengths, and the second partition structure 320 can block this leakage current.

[0100] In at least one embodiment of the present disclosure, as Figure 11 shown, for the notches 311 that are opposite to the second partition structure 320 and adjacent to each other, the line L4 connecting the end of one notch 311 and the end of the other notch 311 passes through the second partition structure 320. In this way, the coverage degree of the second partition structure 320 on the notches 311 can be ensured, so as to ensure that there is no straight leakage current path between the adjacent light-emitting devices 200 even at the position where the notches 311 face each other, thereby further reducing the leakage current between the light-emitting devices 200.

[0101] In some embodiments of the present disclosure, as Figures 10A to 13As shown, the length of the second partition structure 320 is not less than the length occupied by the opposite notches 311 on the virtual track 301, so as to ensure that the length of the second partition structure 320 is long enough to reduce the leakage current between the opposite notches 311.

[0102] It should be noted that in some other embodiments of the present disclosure, if it is necessary to control the length of the second partition structure 320 to ensure a smaller voltage drop on the second electrodes of the respective light-emitting devices 200, the length of the second partition structure 320 can also be set to be less than the length occupied by the opposite notches 311 on the virtual track 301.

[0103] In at least one embodiment of the present disclosure, as Figures 10A to 12 shown, for the second partition structure 320 between adjacent light-emitting devices 200 with different emission wavelengths, the distance from the second partition structure 320 to the boundary of the light-emitting device 200 with a shorter emission wavelength is greater than the distance to the boundary of the light-emitting device 200 with a longer emission wavelength. The smaller the emission wavelength of the light-emitting device 200, the greater the driving voltage required, and thus it is easier to flow current to other surrounding light-emitting devices 200 to cause crosstalk. In this technical solution, for the light-emitting device 200 with a larger driving voltage, the distance between the second partition structure 320 and this light-emitting device 200 is reduced to improve the blocking effect of the second partition structure 320 on this light-emitting device 200, so as to reduce the leakage current flowing out of this light-emitting device 200.

[0104] In at least one embodiment of the present disclosure, the orthographic projection of the second partition structure 320 on the substrate 100 is one of a straight line segment shape and a wavy shape. The wavy setting can effectively reduce the width of the leakage current channel between the second partition structure 320 and the corresponding light-emitting device 200, thereby further reducing the leakage current. The specific principle can refer to the relevant description in the foregoing Figure 9 shown embodiment, and will not be elaborated here.

[0105] In the embodiments of the present disclosure, there is no limitation on the arrangement manner of sub-pixels (substantially the arrangement of light-emitting devices). The arrangement of sub-pixels can be designed according to actual needs, and the first partition structure 310 is set based on the arrangement manner of sub-pixels.

[0106] Such as Figure 10A and Figure 11As shown, the light-emitting devices 200 are classified into a first type of light-emitting device R, a second type of light-emitting device G, and a third type of light-emitting device B. The light-emitting wavelengths of the first type of light-emitting device R, the second type of light-emitting device G, and the third type of light-emitting device B decrease in sequence. The light-emitting devices 200 are arranged in multiple rows and multiple columns. The first type of light-emitting device R and the third type of light-emitting device B are arranged in the same row, and the first type of light-emitting device R and the third type of light-emitting device B in the same row are alternately arranged. The rows where the first type of light-emitting device R and the third type of light-emitting device B are located and the rows where the second type of light-emitting device G is located are alternately arranged along the column direction. The first type of light-emitting device R and the third type of light-emitting device B are arranged in the same column, and the first type of light-emitting device R and the third type of light-emitting device B in the same column are alternately arranged. The columns where the first type of light-emitting device R and the third type of light-emitting device B are located and the rows where the second type of light-emitting device G is located are alternately arranged along the row direction. In the non-edge area of the display panel, the first type of light-emitting device R is adjacent to four second type of light-emitting devices G located in adjacent rows and adjacent columns respectively, two third type of light-emitting devices B in the same row and different columns, and two third type of light-emitting devices B in the same column and different rows. For the first type of light-emitting device 200 and the third type of light-emitting device 200 that are in the same row and adjacent, the notch 311 of the first partition structure 310 corresponding to the first type of light-emitting device 200 is opposite to the notch 311 of the first partition structure 310 corresponding to the third type of light-emitting device 200, and the second partition structure 320 is located between the first type of light-emitting device 200 and the third type of light-emitting device 200 that are in the same row and adjacent.

[0107] It should be noted that, in the sub-pixel arrangement modes as shown in Figure 10A and Figure 11 , the notch 311 of the first partition structure 310 corresponding to the second type of light-emitting device G can be partially oriented towards the first type of light-emitting device R and partially towards the third type of light-emitting device B as shown in Figure 10A and Figure 11 ; or, it can be selected to be all oriented towards the first type of light-emitting device R; or, it can be selected to be all oriented towards the third type of light-emitting device B. It should be noted that, in the case where the notch 311 of the first partition structure 310 corresponding to the second type of light-emitting device G is all oriented towards the first type of light-emitting device R, the risk that the leakage current generated by the third type of light-emitting device B enters the second type of light-emitting device G along the notch 311 can be further reduced.

[0108] It should be noted that, as shown in Figure 10A and Figure 11 , the diamond-shaped pixel arrangement is shown. In the embodiments of the present disclosure, it can also be a tripod type or other types of pixel arrangements, and the first partition structure 310 and the second partition structure 320 mentioned in the foregoing embodiments of the present disclosure can all be adopted.

[0109] In at least one embodiment of the present disclosure, as shown in Figures 12 to 1As shown in FIG. 4, the display panel may further include a pixel definition layer 400. The pixel definition layer 400 includes a plurality of pixel apertures 401, and the pixel apertures 401 define the boundaries of the light-emitting devices 200.

[0110] For example, the region where the orthographic projection of the pixel aperture 401 on the substrate 100 overlaps with the orthographic projection of the first electrode 210 of the light-emitting device 200 on the substrate 100 corresponds to the actual light-emitting region of the light-emitting device 200.

[0111] In some embodiments of the present disclosure, as Figure 12 and Figure 13 shown, the orthographic projection of the end portion of the first partition structure 310 and / or the second partition structure 320 facing the substrate 100 on the substrate is located within the orthographic projection of the end portion away from the substrate 100 on the substrate. In this way, the partitioning effect of the second portion 322 on the light-emitting functional layer 230 can be ensured.

[0112] In some embodiments of the present disclosure, as Figure 14A shown, the first partition structure 310 and / or the second partition structure 320 ( Figure 14A only the second partition structure 320 is shown) includes a first portion 321 and a second portion 322. The first portion 321 is located between the second portion 322 and the pixel definition layer 400. The orthographic projection of the end portion of the first portion 321 facing the second portion 322 on the substrate 100 is located within the orthographic projection of the second portion 322 on the substrate 100. In this way, the partitioning effect of the second portion 322 on the light-emitting functional layer 230 can be ensured.

[0113] For example, in the structure as Figure 14A shown, the first portion 321 and the second portion 322 may be conductive structures, or the first portion 321 is an insulating structure and the second portion 322 is a conductive structure. In this way, during the formation of the second electrode 220, if the second electrode 220 overlaps with the conductive structure, the conductive structure can be used to participate in forming the common electrode, thereby reducing the voltage drop generated at the second electrode 220.

[0114] In other embodiments of the present disclosure, as Figure 14B shown, the pixel aperture 401 includes a plurality of grooves, and the grooves serve as the first partition structure 310 and / or the second partition structure 320. For example, the depth of the grooves is greater than the thickness of the light-emitting functional layer 230, so as to ensure the partitioning effect on the light-emitting functional layer 230.

[0115] For example, as Figure 14B shown, the orthographic projection of the bottom surface of the groove on the substrate 100 is located within the orthographic projection of the opening of the groove on the substrate 100, so that the side surface of the groove is an inclined surface. For example, the included angle between the inclined surface of the groove and the bottom surface is not less than 50 degrees.

[0116] Some film layers of the light-emitting functional layer in the light-emitting device 200 can be selectively formed by evaporation. There will be an evaporation angle for the release of the evaporation material in the evaporation source. The evaporation source will move relative to the display panel during evaporation to scan the display panel. Thus, in the process of evaporating the film layers of the light-emitting device 200, if the angle between the inclined surface and the bottom surface of the groove is too large (the inclination degree is large and steeper), then this angle will cause the film layer deposited on the side surface of the groove to be thinner (it cannot be deposited on the side wall at a specific scanning position) or even unable to form a continuous film layer, resulting in the disconnection of the deposited film layer. Accordingly, the risk of lateral crosstalk between the light-emitting devices 200 can be reduced.

[0117] In at least one embodiment of the present disclosure, as Figure 15A and Figure 15B shown, the display panel further includes an adapter part 201 corresponding to the first electrode 210 respectively. The first electrode 210 and the corresponding adapter part 201 are on the same layer and are connected to each other. The substrate includes a pixel driving circuit. The main body part of the first electrode 210 is connected to the pixel driving circuit 110 (only the thin film transistor included therein is shown) through the adapter part 201. The orthographic projection of the adapter part 201 on the substrate is located outside the orthographic projections of the first partition structure 310 and the second partition structure 320 on the substrate. Thus, it can be avoided that the groove is too low, so that the materials (such as the light-emitting functional layer and the second electrode, etc.) accumulated therein have too small a distance from the underlying adapter part 201 to form a parasitic capacitance.

[0118] For example, as Figure 15B shown, a part of the orthographic projection of the adapter part 201 on the substrate is located within the orthographic projection of the notch 301 of the first partition structure 310 on the substrate.

[0119] At least one embodiment of the present disclosure provides a method for manufacturing a display panel. As Figure 16 shown, the manufacturing method may include the following steps S100 to S700.

[0120] S100, obtain a substrate, on which a plurality of light-emitting devices are arranged.

[0121] S200, select any one of the light-emitting devices as the target light-emitting device, and regard the other light-emitting devices adjacent to the target light-emitting device as reference light-emitting devices.

[0122] S300, connect the centroid of the target light-emitting device and the centroid of the reference light-emitting device to obtain a first line segment. The part of the first line segment located at the boundary of the target light-emitting device and the boundary of the reference light-emitting device is the second line segment.

[0123] S400, find a reference point on the second line segment. Among them, the ratio of the distance from the reference point to the boundary of the target light-emitting device to the length of the second line segment is a first value.

[0124] S500. Obtain a reference point on a first line segment formed by the centroid of a target light-emitting device and the centroids of all adjacent reference light-emitting devices, and fit the reference points to obtain a virtual trajectory, where the virtual trajectory is a closed loop surrounding the target light-emitting device.

[0125] S600. Set a first reference partition structure based on the virtual trajectory, where the first reference partition structure is a closed loop and passes through all the reference points.

[0126] S700. Set a notch at at least one position on the first reference partition structure to obtain a first partition structure.

[0127] In the display panel obtained in the above steps S100 to S700, determine the distance between the corresponding first partition structure and the light-emitting device based on the distance between the light-emitting device and the adjacent light-emitting device. That is, on the side where the distance between the light-emitting device and the adjacent light-emitting device is larger, the distance between the light-emitting device and the corresponding first partition structure is also larger. Correspondingly, on the side where the distance between the light-emitting device and the adjacent light-emitting device is smaller, the distance between the light-emitting device and the corresponding first partition structure is also smaller. Thus, the degree of influence on the driving voltage caused by the setting of the first partition structure at each location where the light-emitting device is located can be balanced to solve the problem of uneven display in each area of the display panel. For the technical problems faced by the display panel, the specific design structure, the principle of solving the technical problems, and further improvements, etc., reference can be made to the relevant descriptions in the foregoing embodiments, which will not be elaborated here.

[0128] As Figures 17A to 17D shown, the present disclosure shows the design process of the display panel in the above steps S100 to S700 in a structural manner.

[0129] As Figure 17A shown, select a target light-emitting device (centroid is Q1) and adjacent reference light-emitting devices around it, and select one reference light-emitting device (centroid is Q2). Connect the centroids of the selected target light-emitting device and the reference light-emitting device to obtain a first line segment L1, and obtain the part of the first line segment L1 located between the boundaries of the target light-emitting device and the reference light-emitting device, which is the second line segment L2; then, based on the second line segment L2 and a first value, obtain a reference point Qs on the second line segment L2.

[0130] As Figure 17B shown, according to the process shown in Figure 17A shown, obtain the first line segment L1, the second line segment L2, and the reference point Qs corresponding to the target light-emitting device and all adjacent light-emitting devices.

[0131] As Figure 17C shown, fit the graph based on all the obtained reference points Qs to obtain a virtual trajectory 301.

[0132] As shown Figure 17D in the figure, a first reference partition structure 310a is obtained based on the virtual trajectory 301.

[0133] After obtaining the first reference partition structure 310a as shown Figure 17D in the figure, a notch can be designed at a suitable position of the first reference partition structure 310a to obtain the first partition structure 310 as shown Figure 4 in the figure. The selection method of the position of the notch can refer to the relevant description in the foregoing embodiments and will not be elaborated here.

[0134] In at least one embodiment of a method for manufacturing a display panel, as shown Figure 18 in the figure, the manufacturing method may further include the following steps S800 and S900.

[0135] S800, selecting a first target partition structure from the first partition structures, wherein the notches of adjacent first target partition structures face each other, and the light-emitting wavelengths of the corresponding light-emitting devices are different.

[0136] S900, arranging a second partition structure between the notches of adjacent first target partition structures.

[0137] In the display panel obtained by this manufacturing method, the second partition structure can block the leakage current between the light-emitting devices with opposite notches to further reduce the leakage current.

[0138] At least one embodiment of the present disclosure provides a display device, which may include the display panel in the foregoing embodiment.

[0139] For example, in the embodiment of the present disclosure, the display device may be any product or component with a display function such as a television, a digital camera, a mobile phone, a watch, a tablet computer, a notebook computer, a navigator, etc.

[0140] It should be understood that various forms of the processes shown above can be used, steps can be reordered, added or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is imposed herein.

[0141] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A display panel, characterized in that, It includes a substrate, and a plurality of light-emitting devices and a plurality of first partition structures located on the substrate. The first partition structures correspond to the light-emitting devices respectively and surround the corresponding light-emitting devices. The first partition structure has at least one notch. For each of the light-emitting devices and other adjacent light-emitting devices, the line connecting the centroid of the light-emitting device to the centroid of the adjacent light-emitting device is a first line segment, and the part of the first line segment between the boundaries of two adjacent light-emitting devices is a second line segment. For the light-emitting device and the corresponding first partition structure, the first partition structure is located on a closed-loop virtual trajectory, the virtual trajectory intersects with the second line segment, and the ratio of the distance from the intersection point to the boundary of the light-emitting device to the length of the second line segment is a first value, and The first values corresponding to the first line segments formed by the centroid of the light-emitting device and the centroids of all adjacent light-emitting devices are equal.

2. The display panel according to claim 1, wherein Two opposite first partition structures are arranged in the area between adjacent light-emitting devices and not directly opposite to the notch.

3. The display panel according to claim 1, wherein The light-emitting devices are classified into multiple types with different light-emitting wavelengths. The first values determined by the light-emitting devices with different light-emitting wavelengths and the corresponding first partition structures are equal; or The smaller the light-emitting wavelength of the light-emitting device, the smaller the first value determined by the corresponding first partition structure; or The light-emitting devices are at least classified into a first type of light-emitting device, a second type of light-emitting device, and a third type of light-emitting device. The light-emitting wavelengths of the first type of light-emitting device, the second type of light-emitting device, and the third type of light-emitting device decrease in sequence. The first values determined by the first partition structures corresponding to the first type of light-emitting device and the second type of light-emitting device are equal, and the first value determined by the first partition structure corresponding to the third type of light-emitting device is smaller than the first value determined by the first partition structure corresponding to the first type of light-emitting device.

4. The display panel according to claim 1, characterized in that, The lengths of the first line segments determined by the centroid of the light-emitting device and the centroids of at least two adjacent light-emitting devices are different.

5. The display panel according to claim 4, wherein For at least some of the light-emitting devices, the intersection point of the longest first line segment corresponding to the light-emitting device and the corresponding virtual trajectory is located in the notch of the first partition structure corresponding to the light-emitting device. Preferably, for all the light-emitting devices, the intersection point of the longest first line segment corresponding to the light-emitting device and the corresponding virtual trajectory is located in the notch of the first partition structure corresponding to the light-emitting device. Preferably, the notch of the first partition structure corresponds to the corner of the light-emitting device.

6. The display panel according to claim 5, wherein The ratio of the length occupied by the notch of the first partition structure on the virtual trajectory to the length of the virtual trajectory is a second value, and the second value is 1% to 20%. Preferably, the light-emitting devices are classified into multiple types with different light-emitting wavelengths, and the larger the second value corresponding to the first partition structure corresponding to the light-emitting device with the smaller light-emitting wavelength.

7. The display panel according to claim 1, wherein It further includes a plurality of second partition structures, wherein the second partition structures are disposed between at least some of the first partition structures that are adjacent to each other and have notches opposite to each other, and are opposite to the notches of the first partition structures.

8. The display panel according to claim 7, wherein For the light-emitting devices that are adjacent to each other and have different light-emitting wavelengths, the notches of the corresponding first partition structures are opposite to each other, and the second partition structures are disposed between the adjacent light-emitting devices.

9. The display panel according to claim 7, wherein For the notches that are opposite to the second partition structure and adjacent to each other, the line connecting the end of one notch and the end of the other notch passes through the second partition structure.

10. The display panel according to claim 9, wherein The length of the second partition structure is not less than the length occupied by the opposite notches on the virtual trajectory.

11. The display panel according to claim 7, wherein The light-emitting devices are classified into multiple types with different light-emitting wavelengths. For the second partition structure located between the light-emitting devices that are adjacent and have different light-emitting wavelengths, the distance from the second partition structure to the boundary of the light-emitting device with a shorter light-emitting wavelength is greater than the distance to the boundary of the light-emitting device with a longer light-emitting wavelength.

12. The display panel according to claim 7, wherein The orthographic projection of the second partition structure on the substrate is one of a straight line segment shape and a wavy shape.

13. The display panel according to claim 7, characterized in that, The light-emitting devices are classified into a first type of light-emitting device, a second type of light-emitting device, and a third type of light-emitting device. The light-emitting wavelengths of the first type of light-emitting device, the second type of light-emitting device, and the third type of light-emitting device decrease in sequence. The light-emitting devices are arranged in multiple rows and multiple columns. The first type of light-emitting device and the third type of light-emitting device are arranged in the same row, and the first type of light-emitting device and the third type of light-emitting device in the same row are alternately arranged. The rows where the first type of light-emitting device and the third type of light-emitting device are located and the rows where the second type of light-emitting device are located are alternately arranged along the column direction. The first type of light-emitting device and the third type of light-emitting device are arranged in the same column, and the first type of light-emitting device and the third type of light-emitting device in the same column are alternately arranged. The columns where the first type of light-emitting device and the third type of light-emitting device are located and the rows where the second type of light-emitting device are located are alternately arranged along the row direction. In the non-edge area of the display panel, the first type of light-emitting device is adjacent to four second type of light-emitting devices located in adjacent rows and adjacent columns respectively, adjacent to two third type of light-emitting devices in the same row and different columns, and adjacent to two third type of light-emitting devices in the same column and different rows.

14. The display panel according to claim 13, wherein For the first type of light-emitting device and the third type of light-emitting device that are in the same row and adjacent, the notch of the first partition structure corresponding to the first type of light-emitting device is opposite to the notch of the first partition structure corresponding to the third type of light-emitting device, and the second partition structure is located between the first type of light-emitting device and the third type of light-emitting device that are in the same row and adjacent.

15. The display panel according to claim 7, wherein It further includes a pixel defining layer, wherein the pixel defining layer includes a plurality of pixel openings that define the boundaries of the light-emitting devices.

16. The display panel according to claim 15, characterized in that, The pixel defining layer further includes a plurality of grooves that serve as the first partition structure and / or the second partition structure; Preferably, the light emitting device comprises a first electrode, a light emitting functional layer and a second electrode sequentially stacked on the substrate, and the depth of the groove is greater than the thickness of the light emitting functional layer; Preferably, the orthographic projection of the bottom surface of the groove on the substrate is located within the orthographic projection of the opening of the groove on the substrate, so that the side surface of the groove is an inclined surface; Preferably, the angle between the inclined surface of the groove and the bottom surface is not less than 50 degrees; Preferably, the display panel further includes transition portions respectively corresponding to the first electrodes, the first electrodes and the corresponding transition portions are in the same layer and connected to each other, the substrate includes a pixel driving circuit, the main body of the first electrode is connected to the pixel driving circuit through the transition portions, and the orthographic projection of the transition portions on the substrate is located outside the orthographic projection of the first partition structure and the second partition structure on the substrate; Further preferably, a portion of an orthographic projection of the adapter portion on the substrate is located within an orthographic projection of the notch of the first partition structure on the substrate.

17. The display panel according to claim 15, wherein, The first partition structure and / or the second partition structure comprises a first portion and a second portion, the first portion is located between the second portion and the pixel defining layer, and An orthographic projection of an end portion of the first portion facing the second portion on the substrate is located within an orthographic projection of the second portion on the substrate.

18. A method for manufacturing a display panel, characterized in that, include: Obtaining a substrate on which a plurality of light-emitting devices are arranged; Selecting any of the light-emitting devices as a target light-emitting device, and taking other light-emitting devices adjacent to the target light-emitting device as reference light-emitting devices; Connecting the centroid of the target light-emitting device and the centroid of the reference light-emitting device to obtain a first line segment, wherein a portion of the first line segment located at a boundary of the target light-emitting device and a boundary of the reference light-emitting device is a second line segment; Finding a reference point on the second line segment, wherein a ratio of a distance from the reference point to a boundary of the target light-emitting device to a length of the second line segment is a first value; Acquire the reference point on the first line segment formed by the centroid of the target light-emitting device and the centroids of all the reference light-emitting devices adjacent to the periphery, and fit the reference point to obtain a virtual trajectory, wherein the virtual trajectory is a closed ring surrounding the target light-emitting device; Setting a first reference partition structure based on the virtual trajectory, wherein the first reference partition structure is a closed ring and passes through all the reference points; as well as A notch is provided at at least one position on the first reference partition structure to obtain a first partition structure.

19. The preparation method according to claim 18, characterized in that, Also includes: Selecting a first target partition structure from the first partition structures, wherein the gaps of adjacent first target partition structures are opposite to each other, and the light emitting wavelengths of the light emitting devices respectively corresponding to the first target partition structures are different; and A second partition structure is disposed between the gaps of adjacent first target partition structures.

20. A display device, characterized in that, A display panel comprising any one of claims 1 to 17, or a display panel obtained by the preparation method according to claim 18 or 19.

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