Display panel, manufacturing method thereof, and display device

Abstract

An embodiment of the present invention provides a display panel, a manufacturing method thereof, and a display device. The display panel includes: at least two spliced ​​screens, each spliced ​​screen includes a central area and at least one first splicing adjustment area; the first splicing adjustment area is adjacent to the other splicing screens along a first direction, the first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than the second spacing between adjacent pixel units in the central area along the first direction, the first splicing adjustment area is provided with a plurality of pixel rows extending along the first direction, each pixel row includes at least one first pixel group, each first pixel group includes at least two pixel units, the first poles of sub-pixels of the same color in each first pixel group are respectively electrically connected to the same driving circuit, and the second poles of each sub-pixel are respectively electrically connected to corresponding first leads. The present invention provides a display panel, a manufacturing method thereof, and a display device to improve the display effect of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel, a manufacturing method thereof, and a display device. Background Art

[0002] As people's demand for display information transmission increases, the application areas of large-screen display have spread to various fields such as public display, power and telecommunications monitoring, and transportation dispatching and command.

[0003] Existing large-size display panels are mainly formed by splicing multiple splicing screens. However, the existing splicing display panels have the problem of poor display effect. Summary of the Invention

[0004] The present invention provides a display panel, a manufacturing method thereof, and a display device, so as to improve the display effect of the display panel.

[0005] In a first aspect, an embodiment of the present invention provides a display panel, the display panel comprising: at least two splicing screens, each splicing screen comprising a central area and at least one first splicing adjustment area;

[0006] The first splicing adjustment area is adjacent to other splicing screens along a first direction, a first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, the first splicing adjustment area is provided with a plurality of pixel rows extending along the first direction, each of the pixel rows includes at least one first pixel group, each of the first pixel groups includes at least two pixel units, the first electrodes of sub-pixels of the same color in each of the first pixel groups are respectively electrically connected to the same driving circuit, and the second electrodes of each of the sub-pixels are respectively electrically connected to corresponding first leads;

[0007] Only one pixel unit in each of the first pixel groups is electrically connected to the power input line through the corresponding first lead line.

[0008] Optionally, each splicing screen further includes at least one second splicing adjustment area, the second splicing adjustment area is adjacent to other splicing screens along the second direction, a third spacing between adjacent pixel units in the second splicing adjustment area along the second direction is smaller than a fourth spacing between adjacent pixel units in the central area along the second direction, the second splicing adjustment area includes a plurality of pixel columns extending along the second direction, each of the pixel columns includes at least one second pixel group, each of the second pixel groups includes at least two pixel units, the first electrodes of sub-pixels of the same color in each of the second pixel groups are electrically connected to the same driving circuit, and the second electrodes of each of the sub-pixels are electrically connected to corresponding second leads; wherein the first direction intersects with the second direction;

[0009] Only one pixel unit in each of the second pixel groups is electrically connected to the power input line through a corresponding second lead line.

[0010] Optionally, the second electrodes of sub-pixels of the same color in the pixel units adjacent to each other along the second direction in the first splicing adjustment area are electrically connected to the same first lead;

[0011] The second electrodes of sub-pixels of the same color in the pixel units adjacent to each other along the first direction in the second splicing adjustment area are electrically connected to the same second lead;

[0012] Optionally, the first lead and the second lead are provided in the same metal layer; or

[0013] The power input line, the first lead and the second lead are arranged in the same metal layer.

[0014] Optionally, both ends of each first lead line extend to the non-display area, and both ends of each second lead line extend to the non-display area;

[0015] The power input line includes a first input line and a second input line, the first input line is adjacent to the first ends of the plurality of first leads and the first ends of the plurality of second leads respectively, and the second input line is adjacent to the second ends of the plurality of first leads and the second ends of the plurality of second leads respectively;

[0016] When part of the first lead is electrically connected to the power input line, the first end of the first lead is electrically connected to the first input line, and the second end of the first lead is electrically connected to the second input line;

[0017] When part of the second lead is electrically connected to the power input line, the first end of the second lead is electrically connected to the first input line, and the second end of the second lead is electrically connected to the second input line.

[0018] Optionally, the splicing screen further includes at least one third splicing adjustment area, the third splicing adjustment area is adjacent to other splicing screens along the first direction, and is adjacent to other splicing screens along the second direction, a fifth spacing between adjacent pixel units in the third splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, and a sixth spacing between adjacent pixel units in the third splicing adjustment area along the second direction is smaller than a fourth spacing between adjacent pixel units in the central area along the second direction;

[0019] The third splicing adjustment area includes at least one third pixel group, and the third pixel group includes at least four pixel units arranged in an array; the first electrodes of sub-pixels of the same color in each of the third pixel groups are electrically connected to the same driving circuit, and the second electrodes of each of the sub-pixels are electrically connected to corresponding third leads;

[0020] Only one pixel unit in each of the third pixel groups is electrically connected to the power input line through a corresponding third lead line.

[0021] Optionally, each of the pixel rows includes two first pixel groups; and / or, each of the pixel columns includes two second pixel groups; and / or, the third splicing adjustment area includes four third pixel groups arranged in an array.

[0022] In a second aspect, an embodiment of the present invention provides a display device, which includes the display panel provided by any embodiment of the present invention.

[0023] In a third aspect, an embodiment of the present invention provides a method for manufacturing a display panel, the method comprising:

[0024] At least two splicing screens are spliced ​​together, each splicing screen including a central area and at least one first splicing adjustment area; the first splicing adjustment area is adjacent to the other splicing screens along a first direction, a first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, the first splicing adjustment area is provided with a plurality of pixel rows extending along the first direction, each pixel row including at least one first pixel group, each first pixel group including at least two pixel units, a first electrode of sub-pixels of the same color in each first pixel group being electrically connected to a same driving circuit, and a second electrode of each sub-pixel being electrically connected to a corresponding first lead;

[0025] It is set that only one pixel unit in each of the first pixel groups is electrically connected to the power input line through the corresponding first lead.

[0026] Optionally, if the sub-pixels in the first pixel group are not spliced, the first lead connected to each of the sub-pixels in the first pixel group is electrically connected to the power input line, then setting that only one pixel unit in each of the first pixel groups is electrically connected to the power input line through the corresponding first lead specifically includes:

[0027] Laser cutting is used to disconnect the first leads electrically connected to some sub-pixels from the power input line.

[0028] In an embodiment of the present invention, each splicing screen includes at least one first splicing adjustment area, and the spacing between two adjacent pixel units in the first splicing adjustment area in the first direction is set to be smaller than the spacing between two adjacent pixel units in the central area in the first direction. Pixel units at corresponding positions in the first splicing adjustment area can be selected for display according to the size of the splicing seam, so that after the splicing is completed, the spacing between the pixel units used for display at the edge of the adjacent splicing screen is similar to or the same as the spacing between the pixel units in the central area, thereby avoiding the presence of the splicing seam, which causes the spacing between the pixel units at the edge to differ too much from the spacing between the pixel units in the central area, thereby improving the display effect of the display panel. In addition, the first poles of the sub-pixels of the same color in the first pixel group in the first splicing adjustment area are connected to the same drive circuit, thereby reducing the number of drive circuit settings. In addition, the second electrode of each sub-pixel in the first pixel group is connected to a different first lead. When at least two splicing screens are spliced ​​together, the first lead connected to the power input line in the first splicing adjustment area is selected according to the size of the splicing seam. That is, by adjusting the connection relationship between the first lead and the power input line, each driving circuit directly drives only the required sub-pixel display, without setting a switch for each sub-pixel, thereby reducing the number of devices in the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of a display panel provided by an embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0031] Figure 3 yes Figure 1 The middle shows a schematic cross-sectional view of the panel along section line AA;

[0032] Figure 4 is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0033] Figure 5 is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0034] Figure 6 is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0035] Figure 7 yes Figure 1 Another cross-sectional schematic diagram of the display panel along the section line AA;

[0036] Figure 8 is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0037] Figure 9is a schematic diagram of another display panel provided by an embodiment of the present invention;

[0038] Figure 10 is a schematic diagram of a display device provided by this embodiment;

[0039] Figure 11 is a schematic diagram of another display panel provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of the present invention and are not intended to limit the embodiments of the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions of the embodiments of the present invention, rather than all structures.

[0041] As mentioned in the background technology, the existing spliced ​​display panels have the problem of poor display effect. The inventors found through research that the reason for this problem is that the pixel units of each spliced ​​screen in the spliced ​​display panel are evenly arranged. Under the premise of tolerances such as splicing manufacturing and screen size, it is impossible to ensure that the spacing of the pixel units at the splicing position is consistent with that at other positions of the splicing screen. After splicing into a large-size display panel, there is a difference between the displayed image at the splicing position and other areas, resulting in poor display effect of the display panel.

[0042] In order to solve the above technical problems, an embodiment of the present invention provides a display panel. Figure 1 is a schematic diagram of a display panel provided by an embodiment of the present invention, Figure 2 is a schematic diagram of another display panel provided by an embodiment of the present invention, Figure 3 yes Figure 1 The cross-sectional view of the panel along the section line AA is shown in FIG. Figure 1 and Figure 2 The display panel includes: at least two splicing screens 10, each splicing screen 10 includes a central area 11 and at least one first splicing adjustment area 12; the first splicing adjustment area 12 is adjacent to the other splicing screens 10 along a first direction X, a first spacing D1 between adjacent pixel units 20 in the first splicing adjustment area 12 along the first direction X is smaller than a second spacing D2 between adjacent pixel units 20 in the central area 11 along the first direction X, the first splicing adjustment area 12 is provided with a plurality of pixel rows 30 extending along the first direction X, each pixel row 30 includes at least one first pixel group 31, each first pixel group 31 includes at least two pixel units 20, the first electrodes of sub-pixels of the same color in each first pixel group 31 are respectively electrically connected to the same driving circuit, and the second electrodes of each sub-pixel are respectively electrically connected to corresponding first leads; only one pixel unit 20 in each first pixel group 31 is electrically connected to a power input line via a corresponding first lead.

[0043] Specifically, Figure 1 The first direction X shown represents the horizontal direction, Figure 2 The first direction X shown is the vertical direction. If in the first direction X, a splicing screen 10 ( Figure 1 Left) and another splicing screen 10 ( Figure 1 Right) splicing, then Figure 1 The left splicing screen 10 includes a first splicing adjustment area 12. If in the first direction X, a Figure 1 The left splicing screen 10 is spliced ​​with two other splicing screens 10, then Figure 1 The left splicing screen 10 includes two first splicing adjustment areas 12 ( Figure 1 The left and right sides of the left splicing screen 10 each include a first splicing adjustment area 12).

[0044] The spacing between adjacent pixel units 20 in the first splicing adjustment area 12 in the first direction X is set to be smaller than the spacing between adjacent pixel units 20 in the central area 11 in the first direction X, and the pixel units 20 used for display in the first splicing adjustment area 12 are determined according to the size of the splicing seam. This can make the spacing between adjacent pixel units 20 at the edge of the adjacent splicing screen 10 in the pixel units 20 used for display after the splicing is completed similar to or the same as the spacing between adjacent pixel units 20 in the central area 11, thereby avoiding the existence of the splicing seam, which causes the spacing between the pixel units 20 at the edge to differ too much from the spacing between the pixel units 20 in the central area 11, thereby affecting the display. For example, refer to Figure 3 When the gap size GAP between two adjacent splicing screens is determined, the pixel units 20 turned on in the first splicing adjustment area 12 can be determined according to the gap size GAP and the second spacing D2 of the pixel units 20 in the central area 11 along the first direction X ( Figure 3 The pixel units 20 in the middle fill pattern are the pixel units 20 turned on in the first splicing adjustment area 12), so that the spacing P2 of adjacent pixel units 20 used for display at the seam, and the spacing P1 of adjacent pixel units 20 used for display at the intersection of the central area 11 and the first splicing adjustment area 12 are close to or the same as the second spacing D2.

[0045] The pixel unit 20 is the smallest repeating unit of light emission in the display panel. Each pixel unit 20 may include at least three sub-pixels emitting different colors. For example, each pixel unit may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Therefore, in this embodiment, the display of the pixel unit 20 indicates that there are sub-pixels displayed in the pixel unit 20.

[0046] Figure 4 is a schematic diagram of another display panel provided by an embodiment of the present invention, with reference to Figure 4 , Figure 4LED11, LED12, ..., LED35, LED36 are sub-pixels of the same color in different pixel units. Figure 4 The lead connected to the second electrode of LED11 and the lead connected to the second electrode of LED12 are both first leads. In the same first pixel group 31, the second electrodes of sub-pixels of the same color are electrically connected to different first leads. When a first lead is electrically connected to the power input line, the sub-pixels electrically connected to the first lead can be displayed under the drive of the driving circuit. In the same first pixel group 31, if the first lead is not electrically connected to the power input line, the sub-pixels electrically connected to these first leads will not be displayed. For example, refer to Figure 4 In the same first pixel group 31, the first lead electrically connected to LED 13 is connected to the power input line, while the first lead electrically connected to LED 11, the first lead electrically connected to LED 12, the first lead electrically connected to LED 14, the first lead electrically connected to LED 15, and the first lead electrically connected to LED 16 are not connected to the power input line. Therefore, under the drive of the drive circuit, only the sub-pixels in the same column as LED 13 can be displayed. In the same first pixel group 31, sub-pixels of the same color are electrically connected to the same drive circuit, and there is no need to provide a drive circuit for each sub-pixel, thereby reducing the number of components in the display panel. In addition, in this embodiment, by adjusting the connection relationship between the first lead and the power output line, each drive circuit ultimately drives one sub-pixel to display, that is, only one pixel unit in each first pixel group is displayed. Therefore, there is no need to provide a switch for each sub-pixel, thereby reducing the number of components in the display panel.

[0047] In the first direction X, when the sizes of the seams between two adjacent spliced ​​screens 10 are different, the first leads electrically connected to the power input line are different. When the spliced ​​screen 10 is manufactured, each first lead can be electrically connected to the power input line. After the splicing is completed, the pixel unit 20 required for display is determined based on the size of the seam. The sub-pixels in this pixel unit 20 remain connected to the power input line via the first lead, and the other first leads in the first pixel group 31 are disconnected from the power input line.

[0048] It should be noted that Figure 1 and Figure 2 The display panel is shown as including two splicing screens 10 by way of example, which is not a limitation of the present invention. In other embodiments, there may be multiple splicing screens.

[0049] In an embodiment of the present invention, each splicing screen includes at least one first splicing adjustment area, and the spacing between two adjacent pixel units in the first splicing adjustment area in the first direction is set to be smaller than the spacing between two adjacent pixel units in the central area in the first direction. Pixel units at corresponding positions in the first splicing adjustment area can be selected for display based on the size of the splicing seam, so that after the splicing is completed, the spacing between adjacent pixel units used for display at the edge of the adjacent splicing screen is similar to or the same as the spacing between adjacent pixel units in the central area, thereby avoiding the presence of the splicing seam, which causes the spacing between adjacent pixel units at the edge to differ too much from the spacing between adjacent pixel units in the central area, thereby improving the display effect of the display panel. In addition, the first poles of the sub-pixels of the same color in the first pixel group in the first splicing adjustment area are connected to the same drive circuit, thereby reducing the number of drive circuit settings. In addition, the second electrode of each sub-pixel in the first pixel group is connected to a different first lead. When at least two splicing screens are spliced ​​together, the first lead connected to the power input line in the first splicing adjustment area is selected according to the size of the splicing seam. That is, by adjusting the connection relationship between the first lead and the power input line, each driving circuit directly drives only the required sub-pixel display, without setting a switch for each sub-pixel, thereby reducing the number of devices in the display panel.

[0050] Optional, Figure 5 is a schematic diagram of another display panel provided by an embodiment of the present invention, with reference to Figure 5 Each splicing screen 10 also includes at least one second splicing adjustment area 13, the second splicing adjustment area 13 is adjacent to other splicing screens 10 along the second direction Y, a third spacing D3 between adjacent pixel units 20 in the second splicing adjustment area 13 along the second direction Y is less than a fourth spacing D4 between adjacent pixel units 20 in the central area 11 along the second direction Y, the second splicing adjustment area 13 includes a plurality of pixel columns 40 extending along the second direction Y, each pixel column 40 includes at least one second pixel group 41, each second pixel group 41 includes at least two pixel units 20, the first electrodes of sub-pixels of the same color in each second pixel group 41 are electrically connected to the same driving circuit, and the second electrodes of each sub-pixel are respectively electrically connected to corresponding second leads; wherein the first direction X intersects with the second direction Y; and only one pixel unit 20 in each second pixel group 41 is electrically connected to the power input line via the corresponding second lead.

[0051] Specifically, when two adjacent edges of the splicing screen 10 have other splicing screens, the splicing screen 10 includes a first splicing area 12 and a second splicing area 13. The spacing between adjacent pixel units 20 in the second splicing adjustment area 13 in the second direction Y is set to be smaller than the spacing between adjacent pixel units 20 in the central area 11 in the second direction Y, and the pixel units 20 used for display in the second splicing adjustment area 13 are determined based on the size of the splicing seam in the second direction Y. This allows the spacing between adjacent pixel units 20 at the edge of the adjacent splicing screen 10 in the pixel units 20 used for display to be similar to or the same as the spacing between adjacent pixel units 20 in the central area 11 after splicing. This avoids the presence of the splicing seam in the second direction Y causing the spacing between adjacent pixel units 20 at the edge to differ significantly from the spacing between adjacent pixel units 20 in the central area 11, thereby affecting display. In the same second pixel group 41, sub-pixels of the same color are electrically connected to the same driver circuit, eliminating the need to provide a driver circuit for each sub-pixel, thereby reducing the number of components in the display panel. In addition, in this embodiment, by adjusting the connection relationship between the second lead and the power output line, each driving circuit ultimately drives one sub-pixel to display, that is, only one pixel unit 20 is displayed in each second pixel group 41. Therefore, there is no need to set a switch for each sub-pixel, thereby reducing the number of devices in the display panel.

[0052] Optionally, the second electrodes of sub-pixels of the same color in pixel units adjacent to each other along the second direction in the first stitching adjustment area are electrically connected to the same first lead; the second electrodes of sub-pixels of the same color in pixel units adjacent to each other along the first direction in the second stitching adjustment area are electrically connected to the same second lead.

[0053] Specifically, the splicing edges of the splicing screen are generally regular patterns, and the splicing seams between two adjacent splicing screens are also regular patterns. Therefore, in order to ensure that the pixel spacing at the splicing seam is consistent with the pixel spacing in the central area, the pixel units used for display in the first splicing adjustment area are generally a column of pixel units adjacent along the second direction, and the pixel units used for display in the second splicing adjustment area are generally a row of pixel units adjacent along the first direction. Therefore, the second poles of the sub-pixels of the same color in the pixel units adjacent along the second direction in the first splicing adjustment area can be set to be electrically connected to the same first lead, and the second poles of the sub-pixels of the same color in the pixel units adjacent along the first direction in the second splicing adjustment area can be electrically connected to the same second lead.

[0054] Continue to refer Figure 4 , Figure 4The structure shown is a schematic diagram of the structure in which the second poles of the sub-pixels of the same color in two adjacent pixel units along the second direction Y in the first splicing adjustment area are electrically connected to the same first lead. LED11, LED21 and LED31 are respectively located in different pixel units. In the second direction Y, the sub-pixels of the same color are electrically connected to the same first lead. There is no need to set a separate first lead for each sub-pixel, thereby reducing the number of first leads, reducing the wiring difficulty, and simplifying the manufacturing process of the display panel. Similarly, in the second splicing adjustment area, the same technical effect can be achieved by electrically connecting the sub-pixels of the same color adjacent to each other in the first direction X to the same second lead. When the size of the seam is different, sub-pixels in different positions need to be displayed. Therefore, the sub-pixels used for display can be determined by the size of the seam, thereby determining the first lead and the second lead that need to be electrically connected to the power input line.

[0055] Optionally, the first lead and the second lead are provided in the same metal layer; or, the power input line, the first lead and the second lead are provided in the same metal layer.

[0056] Specifically, the first and second leads are provided on the same layer. During the display panel manufacturing process, a metal layer can be first fabricated, and then the metal layer can be patterned using a photolithography process to form the first and second leads, resulting in a relatively simple manufacturing process. The power input line, the first lead, and the second lead can also be provided on the same layer. After the metal layer is fabricated, the metal layer can be patterned using a photolithography process to simultaneously fabricate the power input line, the first lead, and the second lead, thereby improving manufacturing efficiency.

[0057] Optionally, both ends of each first lead extend to the non-display area, and both ends of each second lead extend to the non-display area; the power input line includes a first input line and a second input line, the first input line is adjacent to the first ends of multiple first leads and the first ends of multiple second leads, respectively, and the second input line is adjacent to the second ends of multiple first leads and the second ends of multiple second leads, respectively; when part of the first leads are electrically connected to the power input line, the first end of the first lead is electrically connected to the first input line, and the second end of the first lead is electrically connected to the second input line; when part of the second leads are electrically connected to the power input line, the first end of the second lead is electrically connected to the first input line, and the second end of the second lead is electrically connected to the second input line.

[0058] Specifically, Figure 6 is a schematic diagram of another display panel provided by an embodiment of the present invention, Figure 6 The structure shown in FIG. 1 is a schematic diagram showing a structure in which the second electrodes of the same color sub-pixels in two adjacent pixel units along the second direction Y in the first splicing adjustment area are electrically connected to the same first lead. Figure 6The two ends of the first lead electrically connected to LED13, LED23 and LED33 are respectively electrically connected to the first input line and the second input line. In this way, when driving LED13, LED23 and LED33 to display, the two ends of the first lead are respectively input with electrical signals, thereby reducing the loss caused by the electrical signal being transmitted from the first end of the first lead to the second end of the first lead, and avoiding the electrical signal input of the sub-pixels electrically connected to the same first lead being different in size due to excessive loss, resulting in uneven brightness of the sub-pixels.

[0059] Optional, Figure 7 yes Figure 1 Another cross-sectional view of the display panel along the section line AA is shown in FIG. Figure 7 , each pixel row includes two first pixel groups 31 , and each pixel column includes two second pixel groups.

[0060] Specifically, in the first direction X, each pixel row includes two first pixel groups 31, one of which is adjacent to the central area 11, and the other is adjacent to the gap GAP. Figure 7 The shaded blocks in the figure represent the displayed pixel units 20, wherein the spacing between the pixel units 20 displayed in the first pixel group 31 close to the central area 11 and the closest displayed pixel unit 20 in the central area is P1, the spacing between adjacent pixel units 20 displayed in the first splicing adjustment area 12 is P2, and the spacing between the pixel units 20 displayed in the first pixel group 31 in the current splicing screen and the closest displayed pixel unit 20 in another splicing screen is P3, wherein the sizes of P1, P2, P3, P4, and P5 are similar to D2. In a pixel row, two first pixel groups 31 are set, so that the transition from the central area 11 to the display of the first splicing adjustment area 12 is more natural, and the transition from the first splicing adjustment area 12 to the display of another splicing screen is more natural. Similarly, a pixel column including two second pixel groups also has the same technical effect.

[0061] Optional, Figure 8 is a schematic diagram of another display panel provided by an embodiment of the present invention, with reference to Figure 8The splicing screen 10 further includes at least one third splicing adjustment area 14, which is adjacent to other splicing screens along the first direction X and adjacent to other splicing screens along the second direction Y. A fifth spacing D5 between adjacent pixel units 20 in the third splicing adjustment area 14 along the first direction X is less than a second spacing D2 between adjacent pixel units 20 in the central area 11 along the first direction X. A sixth spacing D6 between adjacent pixel units 20 in the third splicing adjustment area 14 along the second direction Y is less than a fourth spacing D4 between pixel units 20 in the central area 11 along the second direction Y. The third splicing adjustment area 14 includes at least one third pixel group 51, each of which includes at least four pixel units 20 arranged in an array. The first electrodes of sub-pixels of the same color in each third pixel group 51 are electrically connected to the same driving circuit, and the second electrodes of each sub-pixel are electrically connected to corresponding third leads. Only one pixel unit 20 in each third pixel group 51 is electrically connected to a power input line via a corresponding third lead.

[0062] Specifically, Figure 8 The exemplary third splicing adjustment area 14 includes a third pixel group 51, referring to Figure 8 The first splicing screen 101 is spliced ​​with the second splicing screen 102 and the third splicing screen 103 respectively. The first splicing screen 101 includes a first splicing adjustment area 12 adjacent only to the second splicing screen 102 along the first direction X, a second splicing adjustment area 13 adjacent only to the third splicing screen 103 along the second direction Y, and a third splicing adjustment area 14 adjacent to both the second splicing screen 102 and the third splicing screen 103.

[0063] A first spacing D1 between adjacent pixel units 20 in the first splicing adjustment area 12 along the first direction X is smaller than a second spacing D2 between adjacent pixel units 20 in the central area 11 along the first direction X. A third spacing D3 between adjacent pixel units 20 in the second splicing adjustment area 13 along the second direction Y is smaller than a fourth spacing D4 between adjacent pixel units 20 in the central area 11 along the second direction Y. A fifth spacing D5 between adjacent pixel units 20 in the third splicing adjustment area 14 along the first direction X is smaller than the second spacing D2 between adjacent pixel units 20 in the central area 11 along the first direction X, and a sixth spacing D6 along the second direction Y is smaller than the fourth spacing D4 between adjacent pixel units 20 in the central area 11 along the second direction Y. The fifth spacing D5 may be equal to the first spacing D1, and the sixth spacing D6 may be equal to the third spacing D3. After the first splicing screen 101, the second splicing screen 102 and the third splicing screen 103 are spliced ​​together, the positions of the pixel units 20 turned on in the first splicing adjustment area 12 of the first splicing screen 101 and the positions of the pixel units 20 turned on in the first splicing adjustment area 12 of the second splicing screen 102 can be determined according to the size of the first splicing seam between the first splicing screen 101 and the second splicing screen 102, so that the spacing of the pixel units 20 used for display on both sides of the first splicing seam along the first direction X is close to the spacing of the pixel units 20 in the central area 11.

[0064] The positions of the pixel units 20 turned on in the second splicing adjustment area 13 in the first splicing screen 101 and the pixel units 20 turned on in the second splicing adjustment area 13 in the third splicing screen 103 can be determined according to the size of the second splicing seam between the first splicing screen 101 and the third splicing screen 103, so that the spacing along the second direction Y between adjacent pixel units 20 for display on both sides of the second splicing seam is close to the spacing between adjacent pixel units in the central area 11.

[0065] Furthermore, the position of the pixel unit 20 for display in the third splicing adjustment area 14 can be determined based on the sizes of the first and second splicing seams. The spacing between the pixel unit 20 for display in the third splicing adjustment area 14 and the adjacent pixel unit 20 for display in the first splicing adjustment area 12 is closest to the fourth spacing D4, and the spacing between the pixel unit 20 for display in the second splicing adjustment area 13 is closest to the second spacing D2. A sub-pixel for display is found in the third pixel group, the third lead electrically connected to the sub-pixel remains electrically connected to the power input line, and the electrical connections between the other third leads and the power input line are cut off.

[0066] In the third pixel group, in the first direction X, sub-pixels of the same color in adjacent pixel units can be electrically connected to the same third lead, and / or in the second direction Y, sub-pixels of the same color in adjacent pixel units can be electrically connected to the same third lead. In the third pixel group, after finding the sub-pixel used for display, the third lead electrically connected to the sub-pixel is retained and electrically connected to the power input line, and other third leads electrically connected to the power input line are disconnected.

[0067] Optionally, each of the pixel rows includes two first pixel groups; and / or, each of the pixel columns includes two second pixel groups; and / or, the third splicing adjustment area includes four third pixel groups arranged in an array.

[0068] Specifically, the display panel may include two first pixel groups, the display panel may include two first pixel groups and two second pixel groups, or the display panel may include two first pixel groups, two second pixel groups and four third pixel groups. Figure 9 A schematic diagram of another display panel provided by an embodiment of the present invention, Figure 9 The display panel shown includes two first pixel groups 31, two second pixel groups 41 and four third pixel groups 51. Figure 9 The positions of the pixel units 20 for display in the four third pixel groups 51 can be determined based on the positions of the pixel units 20 for display in each first pixel group 31 and the positions of the pixel units 20 for display in each second pixel group 41, so that the spacing of the pixel units 20 for display at the seam along the first direction X and the spacing along the second direction Y are both close to those in the central area 11.

[0069] It should be noted that Figure 9 For example, each third pixel group 51 includes four pixel units 20 arranged in an array, each first pixel group 31 includes two pixel units, and each second pixel group 41 includes two pixel units, which is not a limitation of the present invention.

[0070] Optionally, the sub-pixel is a light emitting diode; the first pole is a cathode and the second pole is an anode, or the first pole is an anode and the second pole is a cathode.

[0071] This embodiment also provides a display device, Figure 10 is a schematic diagram of a display device provided in this embodiment, referring to Figure 10 , the display device 100 includes a display panel 200 according to any embodiment of the present invention.

[0072] An embodiment of the present invention further provides a method for manufacturing a display panel, the method comprising the following steps:

[0073] Step 1: Splicing at least two splicing screens, wherein each splicing screen includes a central area and at least one first splicing adjustment area; the first splicing adjustment area is adjacent to the other splicing screens along a first direction; a first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction; a plurality of pixel rows extending along the first direction are arranged in the first splicing adjustment area; each pixel row includes at least one first pixel group; each first pixel group includes at least two pixel units; the first electrodes of sub-pixels of the same color in each first pixel group are respectively electrically connected to the same driving circuit, and the second electrodes of each sub-pixel are respectively electrically connected to corresponding first leads;

[0074] Step 2: Set only one pixel unit in each first pixel group to be electrically connected to the power input line through the corresponding first lead.

[0075] Optionally, if the first lead connected to each sub-pixel in the first pixel group is electrically connected to the power input line when the sub-pixel is not spliced, then setting that only one pixel unit in each first pixel group is electrically connected to the power input line through the corresponding first lead specifically includes:

[0076] Laser cutting is used to disconnect the first leads electrically connected to some sub-pixels from the power input line.

[0077] Specifically, Figure 11 is a schematic diagram of another display panel provided by an embodiment of the present invention, with reference to Figure 11 After the splicing screen is manufactured, in each first pixel group in the first splicing adjustment area, the first lead connected to the sub-pixel is electrically connected to the power input line. After the splicing is completed, the pixel unit for display can be determined according to the size of the splicing seam, and the first lead electrically connected to the sub-pixel in the pixel unit is kept electrically connected to the power input line. The other first leads are cut by laser cutting, and finally it is ensured that in each first pixel group, only one sub-pixel of the same color can be electrically connected to the power input line through the first lead.

[0078] Likewise, in the second pixel group, the same method is used to find the second lead line electrically connected to the power input line.

[0079] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the embodiments of the present invention. Therefore, although the embodiments of the present invention are described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments. Without departing from the concept of the embodiments of the present invention, the embodiments of the present invention may also include more other equivalent embodiments, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: At least two splicing screens, each splicing screen includes a central area and at least one first splicing adjustment area; The first splicing adjustment area is adjacent to other splicing screens along a first direction, a first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, the first splicing adjustment area is provided with a plurality of pixel rows extending along the first direction, each of the pixel rows includes at least one first pixel group, each of the first pixel groups includes at least two pixel units, first electrodes of sub-pixels of the same color in each of the first pixel groups are respectively electrically connected to the same driving circuit, and second electrodes of sub-pixels of the same color in each of the first pixel groups are respectively electrically connected to corresponding first leads; Only one pixel unit in each first pixel group is electrically connected to the power input line through the corresponding first lead; wherein the first lead connected to the power input line in the first splicing adjustment area is selected according to the size of the splicing seam.

2. The display panel according to claim 1, wherein: Each splicing screen further includes at least one second splicing adjustment area, the second splicing adjustment area is adjacent to other splicing screens along a second direction, a third spacing between adjacent pixel units in the second splicing adjustment area along the second direction is smaller than a fourth spacing between adjacent pixel units in the central area along the second direction, the second splicing adjustment area includes a plurality of pixel columns extending along the second direction, each of the pixel columns includes at least one second pixel group, each of the second pixel groups includes at least two pixel units, the first electrodes of sub-pixels of the same color in each of the second pixel groups are electrically connected to the same driving circuit, and the second electrodes of each of the sub-pixels are electrically connected to corresponding second leads; wherein the first direction intersects the second direction; Only one pixel unit in each of the second pixel groups is electrically connected to the power input line through a corresponding second lead line.

3. The display panel according to claim 2, wherein: The second electrodes of the sub-pixels of the same color in the pixel units adjacent to each other along the second direction in the first splicing adjustment area are electrically connected to the same first lead; The second electrodes of sub-pixels of the same color in the pixel units adjacent to each other along the first direction in the second splicing adjustment area are electrically connected to the same second lead.

4. The display panel according to claim 3, wherein: The first lead and the second lead are provided in the same metal layer; or, The power input line, the first lead and the second lead are arranged in the same metal layer.

5. The display panel according to claim 3, wherein: Both ends of each first lead line extend to the non-display area, and both ends of each second lead line extend to the non-display area; The power input line includes a first input line and a second input line, the first input line is adjacent to the first ends of the plurality of first leads and the first ends of the plurality of second leads respectively, and the second input line is adjacent to the second ends of the plurality of first leads and the second ends of the plurality of second leads respectively; When part of the first lead is electrically connected to the power input line, the first end of the first lead is electrically connected to the first input line, and the second end of the first lead is electrically connected to the second input line; When part of the second lead is electrically connected to the power input line, the first end of the second lead is electrically connected to the first input line, and the second end of the second lead is electrically connected to the second input line.

6. The display panel according to claim 2, wherein: The splicing screen further includes at least one third splicing adjustment area, the third splicing adjustment area is adjacent to other splicing screens along the first direction, and is adjacent to other splicing screens along the second direction, a fifth spacing between adjacent pixel units in the third splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, and a sixth spacing between pixel units in the third splicing adjustment area along the second direction is smaller than a fourth spacing between pixel units in the central area along the second direction; The third splicing adjustment area includes at least one third pixel group, and the third pixel group includes at least four pixel units arranged in an array; the first electrodes of sub-pixels of the same color in each of the third pixel groups are electrically connected to the same driving circuit, and the second electrodes of each of the sub-pixels are electrically connected to corresponding third leads; Only one pixel unit in each of the third pixel groups is electrically connected to the power input line through a corresponding third lead line.

7. The display panel according to claim 6, wherein: Each of the pixel rows includes two first pixel groups; and / or, Each of the pixel columns includes two second pixel groups; and / or, The third splicing adjustment area includes four third pixel groups arranged in an array.

8. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 7.

9. A method for manufacturing a display panel, characterized in that: include: Splicing at least two splicing screens, each splicing screen including a central area and at least one first splicing adjustment area; The first splicing adjustment area is adjacent to other splicing screens along a first direction, a first spacing between adjacent pixel units in the first splicing adjustment area along the first direction is smaller than a second spacing between adjacent pixel units in the central area along the first direction, the first splicing adjustment area is provided with a plurality of pixel rows extending along the first direction, each of the pixel rows includes at least one first pixel group, each of the first pixel groups includes at least two pixel units, first electrodes of sub-pixels of the same color in each of the first pixel groups are respectively electrically connected to the same driving circuit, and second electrodes of sub-pixels of the same color in each of the first pixel groups are respectively electrically connected to corresponding first leads; It is set that only one pixel unit in each first pixel group is electrically connected to the power input line through the corresponding first lead; wherein, the first lead connected to the power input line in the first splicing adjustment area is selected according to the size of the splicing seam.

10. The method for manufacturing a display panel according to claim 9, wherein: If the first lead connected to each of the sub-pixels in the first pixel group is electrically connected to the power input line when the sub-pixels are not spliced, then setting that only one pixel unit in each of the first pixel groups is electrically connected to the power input line through the corresponding first lead specifically includes: Laser cutting is used to disconnect the first leads electrically connected to some sub-pixels from the power input line.

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