Display panel, evaporation mask plate and display apparatus

Abstract

The present disclosure provides a display panel, an evaporation mask plate and a display apparatus. The display panel comprises at least two types of sub-pixel regions, wherein each sub-pixel region is provided with a sub-pixel, and each sub-pixel region of at least one type of sub-pixel regions is provided with at least two sub-pixels; light-emitting materials of all the sub-pixels in any sub-pixel region are obtained by means of one opening provided in a mask plate; the distance between two adjacent sub-pixel regions is greater than the distance between two adjacent sub-pixels in the same sub-pixel region; two adjacent rows of sub-pixel regions arranged in a first direction comprise sub-pixel regions of different colors; and the distance between two adjacent sub-pixel areas of the same type in one of the two adjacent rows is a first distance, the size of the other type of sub-pixel regions in the other row in the first direction is a second distance, and the first distance is less than the second distance.

Description

Display panel, evaporation mask and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023106731372 filed on June 7, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of display technology, and in particular to a display panel, an evaporation mask, and a display device. Background Art

[0004] Currently, organic light-emitting diode (OLED) devices are formed by evaporating organic light-emitting materials onto an array substrate. The organic light-emitting materials are evaporated onto the anode within the openings of the pixel-defining layer on the array substrate. The openings of the pixel-defining layer are used to define the size of the actual light-emitting area. Typically, the pixel opening area is increased by reducing the size between the openings in the pixel-defining layer to improve display brightness. However, due to the limitations of the manufacturing process precision of the evaporation mask, the size between the openings in the pixel-defining layer is difficult to further reduce, and thus it is difficult to further increase the aperture ratio of the display panel. As a result, it is difficult to increase the display brightness of existing display panels.

[0005] Summary of the Invention

[0006] Some embodiments of the present disclosure provide a display panel, an evaporation mask, and a display device, which can further improve the aperture ratio of the display panel and thereby improve the display brightness of the display panel.

[0007] In a first aspect of the present disclosure, a display panel is provided, comprising: at least two types of sub-pixel regions, each type of sub-pixel region being configured to emit light of a single color, each sub-pixel region being provided with a sub-pixel, and each sub-pixel being provided with a luminescent material. Each sub-pixel region of at least one type of sub-pixel region is provided with at least two sub-pixels; the luminescent materials of all sub-pixels in any sub-pixel region are provided through a single opening in an evaporation mask; the distance between two adjacent sub-pixel regions is greater than the distance between two adjacent sub-pixels in the same sub-pixel region; and two adjacent rows of sub-pixel regions arranged in a first direction include sub-pixel regions of different colors, the distance between two adjacent sub-pixel regions of the same type in one of the two adjacent rows being a first distance, and the size of another type of sub-pixel region in the other of the two adjacent rows in the first direction being a second distance, wherein the first distance is smaller than the second distance.

[0008] In conjunction with the first aspect of the present disclosure, in some embodiments, the display panel further includes a pixel defining layer disposed between adjacent sub-pixels. Each sub-pixel region of at least one type of sub-pixel region is provided with at least two sub-pixels, and each sub-pixel region of at least one type of sub-pixel region is provided with one sub-pixel; or each sub-pixel region of all sub-pixel regions is provided with at least two sub-pixels.

[0009] In combination with the first aspect of the present disclosure, in some embodiments, the sub-pixel area includes a red sub-pixel area, a green sub-pixel area and a blue sub-pixel area, and the sub-pixels include red sub-pixels, green sub-pixels and blue sub-pixels; each of the blue sub-pixel areas is provided with at least two of the blue sub-pixels; each of the red sub-pixel areas is provided with one red sub-pixel; and each of the green sub-pixel areas is provided with one green sub-pixel.

[0010] In conjunction with the first aspect of the present disclosure, in some embodiments, the display panel further comprises a plurality of pixel units. Each blue sub-pixel region is provided with four blue sub-pixels, and each pixel unit comprises one red sub-pixel, one green sub-pixel, and two blue sub-pixels.

[0011] In combination with the first aspect of the present disclosure, in some embodiments, the red sub-pixels and the green sub-pixels are arranged alternately in the first direction; the blue sub-pixels are arranged continuously in the first direction; and the size of the blue sub-pixels in the first direction is smaller than the size of the red sub-pixels in the first direction, and / or the size of the blue sub-pixels in the first direction is smaller than the size of the green sub-pixels in the first direction.

[0012] In combination with the first aspect of the present disclosure, in some embodiments, the sub-pixel area includes a red sub-pixel area, a green sub-pixel area and a blue sub-pixel area; the sub-pixels include red sub-pixels, green sub-pixels and blue sub-pixels; each of the blue sub-pixel areas is provided with at least three of the blue sub-pixels; each of the red sub-pixel areas is provided with at least two of the red sub-pixels; and each of the green sub-pixel areas is provided with at least two of the green sub-pixels.

[0013] In combination with the first aspect of the present disclosure, in some embodiments, each of the blue sub-pixel areas is provided with six of the blue sub-pixels, each of the red sub-pixel areas is provided with four of the red sub-pixels, and each of the green sub-pixel areas is provided with four of the green sub-pixels; or, some of the blue sub-pixel areas are provided with three of the blue sub-pixels, and some of the blue sub-pixel areas are provided with six of the blue sub-pixels; some of the red sub-pixel areas are provided with two of the red sub-pixels, and some of the red sub-pixel areas are provided with four of the red sub-pixels; some of the green sub-pixel areas are provided with two of the green sub-pixels, and some of the green sub-pixel areas are provided with four of the green sub-pixels.

[0014] In combination with the first aspect of the present disclosure, in some embodiments, the display panel further includes: a plurality of pixel units, each of the pixel units including one red sub-pixel, one green sub-pixel, and one blue sub-pixel.

[0015] In combination with the first aspect of the present disclosure, in some embodiments, the blue sub-pixel areas are arranged continuously in the first direction; the red sub-pixel areas and the green sub-pixel areas are arranged alternately in the first direction; and the size of the blue sub-pixel in the first direction is larger than the size of the red sub-pixel in the first direction, and / or the size of the blue sub-pixel in the first direction is larger than the size of the green sub-pixel in the first direction.

[0016] In combination with the first aspect of the present disclosure, in some embodiments, in the second direction, the blue sub-pixel areas are alternately arranged with the red sub-pixel areas, and / or, the blue sub-pixel areas are alternately arranged with the green sub-pixel areas; the first direction intersects with the second direction.

[0017] In combination with the first aspect of the present disclosure, in some embodiments, the distance between adjacent blue sub-pixel areas in the first direction is the first distance; the minimum size of the red sub-pixel area or the green sub-pixel area in the first direction is the second distance.

[0018] In combination with the first aspect of the present disclosure, in some embodiments, the distance between the blue sub-pixel areas adjacent to each other in the first direction is the first distance, the shortest distance between the red sub-pixel area and the green sub-pixel area adjacent to each other in the first direction is the third distance, and the first distance is greater than the third distance.

[0019] In combination with the first aspect of the present disclosure, in some embodiments, the size of the blue sub-pixel area in the first direction is larger than the size of the red sub-pixel area in the first direction, and / or the size of the blue sub-pixel area in the first direction is larger than the size of the green sub-pixel area in the first direction.

[0020] In combination with the first aspect of the present disclosure, in some embodiments, the shape of at least one type of sub-pixel area includes a rectangle, and the shape of the sub-pixels of at least one type of sub-pixel area includes a rectangle; the aspect ratio of the shape of at least one type of sub-pixel area is equal to the aspect ratio of the shape of the corresponding sub-pixel; and / or, the aspect ratio of the shape of at least one type of sub-pixel area is greater than the aspect ratio of the shape of the corresponding sub-pixel.

[0021] In combination with the first aspect of the present disclosure, in some embodiments, the number of rows and columns of all the sub-pixels arranged in each sub-pixel area differs by 2 or less than 2.

[0022] In combination with the first aspect of the present disclosure, in some embodiments, when three blue sub-pixels are provided in the blue sub-pixel area, the three blue sub-pixels in the same blue sub-pixel area are arranged in a single row in the first direction; when six blue sub-pixels are provided in the blue sub-pixel area, the six blue sub-pixels in the same blue sub-pixel area are arranged in a double row in the first direction.

[0023] In combination with the first aspect of the present disclosure, in some embodiments, the colors of the emitted light corresponding to two adjacent rows of sub-pixel areas arranged in the first direction are different.

[0024] In the second aspect of the present disclosure, a vapor deposition mask is provided for preparing the display panel as described in the first aspect. The vapor deposition mask includes: at least two types of openings, each type of opening is used to prepare the light-emitting material of a type of sub-pixel area of ​​the display panel. Each of the openings is used to prepare the light-emitting material of a sub-pixel area of ​​the display panel; the distance between two adjacent types of openings is greater than the distance between two adjacent sub-pixels in the same sub-pixel area on the display panel; and two adjacent rows of openings arranged in the first direction include different types of openings for preparing light-emitting materials of different colors, the distance between two adjacent openings of the same type in one of the two adjacent rows is the fourth distance, and the size of the other type of openings in the other of the two adjacent rows in the first direction is the fifth distance, and the fourth distance is smaller than the fifth distance.

[0025] In a third aspect of the present disclosure, a display device is provided, comprising: the display panel as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments.

[0027] FIG1 is a schematic partial structural diagram of a display panel according to some embodiments of the present disclosure;

[0028] FIG2 is a schematic diagram of pixel arrangement of a display panel in the related art;

[0029] FIG3 is a schematic partial structural diagram of a display panel according to some other embodiments of the present disclosure;

[0030] FIG4 is a schematic partial structural diagram of a display panel according to some other embodiments of the present disclosure;

[0031] FIG5 is a schematic partial structural diagram of a display panel according to some further embodiments of the present disclosure;

[0032] FIG6 is a schematic partial structural diagram of a display panel according to some other embodiments of the present disclosure;

[0033] FIG7 is a schematic partial structural diagram of an evaporation mask according to some embodiments of the present disclosure;

[0034] FIG8 is a schematic partial structural diagram of an evaporation mask according to other embodiments of the present disclosure;

[0035] FIG9 is a schematic structural diagram of a display device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0036] In order to better understand the technical solutions provided by the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of the present disclosure, rather than limitations on the technical solutions of the present disclosure. In the absence of conflict, the embodiments of the present disclosure and the technical features in the embodiments can be combined with each other.

[0037] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. Without further restriction, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element. The terms "plurality" and "more than two" include situations where two or more than two exist. The term "and / or" is merely a description of an associative relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, or B exists alone.

[0038] Currently, organic light-emitting diode (OLED) devices are formed by evaporating organic light-emitting materials onto an array substrate. The organic light-emitting materials are evaporated onto the anode within the openings of the pixel-defining layer on the array substrate. The openings of the pixel-defining layer are used to define the size of the actual light-emitting area. Typically, the pixel opening area is increased by reducing the size between the openings in the pixel-defining layer to improve display brightness. However, due to the limitations of the manufacturing process precision of the evaporation mask, the size between the openings in the pixel-defining layer is difficult to further reduce, and thus it is difficult to further increase the aperture ratio of the display panel. As a result, it is difficult to increase the display brightness of existing display panels.

[0039] In view of this, some embodiments of the present disclosure provide a display panel, an evaporation mask, and a display device, which can further improve the aperture ratio of the display panel and thereby improve the display brightness of the display panel.

[0040] Some embodiments of the present disclosure provide a display panel comprising at least two types of sub-pixel regions, each type of sub-pixel region being used to emit light of one color. Each sub-pixel region is provided with a sub-pixel, and each sub-pixel is provided with a luminescent material. The luminescent material is used to emit light to realize picture display. Each sub-pixel region of at least one type of sub-pixel region is provided with at least two sub-pixels; the luminescent materials of all sub-pixels of any sub-pixel region are obtained by setting an opening of a mask; the distance between sub-pixels in the same sub-pixel region and the distance between adjacent sub-pixel regions can be set independently, without simply compressing the distance between sub-pixels to increase the display aperture ratio of the display panel. By setting at least two sub-pixels in each sub-pixel region of at least one type of sub-pixel region, the total area of ​​the regions between the openings of the entire display panel can be reduced, thereby improving the aperture ratio of the display panel.

[0041] In addition, the distance between two adjacent sub-pixel areas is greater than the distance between two adjacent sub-pixels in the same sub-pixel area; that is, it is understood that the distance between adjacent sub-pixel areas of different colors is greater than the distance between adjacent sub-pixels of the same color, the distance between adjacent sub-pixel areas is limited by the opening of the vapor deposition mask, and the distance between sub-pixels in the same sub-pixel area is limited by the distance between the openings of the pixel defining layer. Then, by having at least two or more sub-pixels correspond to the openings of the same vapor deposition mask, the number of openings of the vapor deposition mask can be reduced, and the area occupied by the areas between the openings of the vapor deposition mask can be reduced, and the aperture ratio of the vapor deposition mask can be improved. By using the vapor deposition mask with improved aperture ratio to prepare the corresponding light-emitting material of the display panel, a pixel structure of the display panel with improved aperture ratio can be obtained.

[0042] Two adjacent rows of sub-pixel regions arranged in a first direction include sub-pixel regions of different colors. The distance between two adjacent sub-pixel regions of the same type in one of the two rows is a first distance, and the size of the sub-pixel regions of the other type in the other of the two adjacent rows in the first direction is a second distance, where the first distance is smaller than the second distance. The first direction can be any direction, and the distance between adjacent sub-pixel regions of the same color in the first direction cannot be greater than the size of sub-pixel regions of another color in any adjacent row, to ensure that the aperture ratio of the display panel is improved.

[0043] For example, FIG1 is a schematic partial structural diagram of a display panel according to some embodiments of the present disclosure. As shown in FIG1 , in some embodiments, the display panel includes three types of sub-pixel regions: a red sub-pixel region R, a green sub-pixel region G, and a blue sub-pixel region B. The red sub-pixel region R includes red sub-pixels r, the green sub-pixel region G includes green sub-pixels g, and the blue sub-pixel region B includes blue sub-pixels b. The red sub-pixel r includes a red luminescent material for emitting red light, the green sub-pixel g includes a green luminescent material for emitting green light, and the blue sub-pixel b includes a blue luminescent material for emitting blue light. Each blue sub-pixel region B is provided with two blue sub-pixels b, each red sub-pixel region R is provided with one red sub-pixel r, and each green sub-pixel region G is provided with one green sub-pixel g. One red sub-pixel region R corresponds to one opening in the evaporation mask, one green sub-pixel region G corresponds to one opening in the evaporation mask, and one blue sub-pixel region B corresponds to one opening in one evaporation mask. That is, in FIG1 , the two blue sub-pixels b in the same blue sub-pixel region B correspond to the same opening in the evaporation mask. The distance between two blue sub-pixels b in the same blue sub-pixel region B may be limited by the opening of the pixel-defining layer, meaning the sub-pixel size corresponds to the opening of the pixel-defining layer. The distance between two blue sub-pixels b in the same blue sub-pixel region B is a second spacing h02, and the distance between two adjacent blue sub-pixel regions B is a first spacing h01, with the first spacing h01 being greater than the second spacing h02. The aperture ratio of the display panel can be increased by simultaneously compressing both the first spacing h01 and the second spacing h02. The compression of the second spacing h02 can be achieved by setting the opening of the pixel-defining layer, while the compression of the first spacing h01 can be achieved by setting the opening of the evaporation mask. This simultaneous compression of the two spacings can further increase the aperture ratio of the display panel. This overcomes the process precision limitations of increasing the aperture ratio by only compressing the second spacing h02. Once the second spacing h02 has been compressed to its process limit, the second spacing h02 can be compressed again to further increase the aperture ratio of the display panel. In addition, by preparing the light-emitting materials of all sub-pixel areas in a sub-pixel area of ​​the display panel corresponding to one opening of the vapor deposition mask, the number of sub-pixel areas on the display panel can be reduced, that is, the number of second spacings h02 on the display panel can be reduced, and the area of ​​the area where the second spacings h02 are located on the display panel can be further reduced. Therefore, the area of ​​the sub-pixel occupied area can be increased, which plays a role in improving the aperture ratio of the display panel. The technical bottleneck of improving the aperture ratio can be broken through without improving the process capability.

[0044] Continuing with reference to FIG. 1 , in some embodiments, the blue sub-pixel regions B and the red sub-pixel regions R are arranged in two adjacent columns in a first direction H, and the blue sub-pixel regions B and the green sub-pixel regions G are arranged in two adjacent columns in the first direction H. The red sub-pixel regions R and the green sub-pixel regions G can be arranged in the same column in the first direction H (as shown in FIG. 1 ), or, in other embodiments, can be arranged in two adjacent columns. Of the two adjacent columns of sub-pixel regions, one column contains blue sub-pixels b, and the other column contains red sub-pixels r and green sub-pixels g. The distance between two adjacent green sub-pixel regions G in one of the two adjacent columns is a first distance h1, and the size of the blue sub-pixel regions in the other of the two adjacent columns in the first direction is a second distance h2. The distance between two adjacent blue sub-pixel regions B in one of the two adjacent columns is the first distance h1, the size of the green sub-pixel regions G in the other of the two adjacent columns in the first direction H is a second distance h2, and the size of the red sub-pixel regions R in the first direction H is the second distance h2. The first distance h1 is smaller than the second distance h2. It should be noted that the first distance h1 and the second distance h2 are relative to two adjacent columns, not the same column. The first direction H can be any direction. The distance between adjacent sub-pixel regions of the same color in the first direction H cannot be greater than the size of sub-pixel regions of other colors in any adjacent column to ensure that the aperture ratio of the display panel is improved.

[0045] It should be noted that the sub-pixel regions shown in FIG1 are indicated by dotted lines.

[0046] It should be noted that in a typical display panel's pixel structure, one sub-pixel corresponds to one opening in the vapor deposition mask. For example, Figure 2 is a schematic diagram of the pixel arrangement of a display panel in the related art. As shown in Figure 2, a red sub-pixel region R corresponds to a red sub-pixel r, which corresponds to one opening in the vapor deposition mask. A green sub-pixel region G corresponds to a green sub-pixel g, which corresponds to one opening in the vapor deposition mask. A blue sub-pixel region B corresponds to a blue sub-pixel b, which corresponds to one opening in the vapor deposition mask. Thus, the sub-pixel openings are primarily limited by the openings in the pixel definition layer. When the distance between the openings in the pixel definition layer is reduced, the opening size of the pixel definition layer increases, thereby improving the aperture ratio of the display panel. However, if the distance between the openings in the pixel definition layer is too small, it is easy to cause color mixing between sub-pixels of different colors, which can easily cause color shift and affect the display chromaticity. In addition, due to the process capability limitations of the vapor deposition mask, the reduction of the distance between the openings in the vapor deposition mask is also correspondingly limited. Therefore, the improvement of the aperture ratio of the display panel in the related art has created a technical bottleneck.

[0047] The display panel provided by some embodiments of the present disclosure is provided with at least two sub-pixels in each sub-pixel area of ​​at least one type of sub-pixel area; the light-emitting materials of all sub-pixels in any sub-pixel area are obtained by setting an opening of a mask; the distance between sub-pixels in the same sub-pixel area and the distance between adjacent sub-pixel areas can be set independently, and there is no need to simply compress the distance between sub-pixels to increase the display aperture ratio of the display panel. By setting at least two sub-pixels in each sub-pixel area of ​​at least one type of sub-pixel area, the total area of ​​the regions between the openings of the entire display panel can be reduced, thereby improving the aperture ratio of the display panel. In addition, the distance between two adjacent sub-pixel regions is greater than the distance between two adjacent sub-pixels in the same sub-pixel region, the distance between adjacent sub-pixel regions of different colors is greater than the distance between adjacent sub-pixels of the same color, the distance between adjacent sub-pixel regions is limited by the openings of the evaporation mask, and the distance between sub-pixels in the same sub-pixel region is limited by the distance between the openings of the pixel defining layer. Therefore, by having at least two or more sub-pixels correspond to the openings of the same evaporation mask, the number of openings in the evaporation mask can be reduced, thereby reducing the area occupied by the areas between the openings of the evaporation mask, thereby improving the aperture ratio of the evaporation mask. Using the evaporation mask with improved aperture ratio to prepare the corresponding luminescent material of the display panel, a pixel structure of the display panel with improved aperture ratio can be obtained. Two adjacent rows of sub-pixel regions arranged in a first direction include sub-pixel regions of different colors. The distance between two adjacent sub-pixel regions of the same type in one of the two adjacent rows is a first distance, and the size of the sub-pixel region of another type in the other of the two adjacent rows is a second distance in the first direction. The first distance is smaller than the second distance, thereby ensuring that the aperture ratio of the display panel is improved.

[0048] In some embodiments, the pixel defining layer is disposed between adjacent sub-pixels. Each sub-pixel region of at least one type of sub-pixel region is provided with at least two sub-pixels, and each sub-pixel region of at least one type of sub-pixel region is provided with one sub-pixel.

[0049] As shown in Figure 1, in some embodiments, each blue sub-pixel area B is provided with two blue sub-pixels b, each red sub-pixel area R is provided with a red sub-pixel r, and each green sub-pixel area G is provided with a green sub-pixel g, then one red sub-pixel r, one green sub-pixel g and one blue sub-pixel b can be combined into a pixel unit 101, as a color mixing unit.

[0050] For example, Figure 3 is a schematic partial structural diagram of a display panel according to other embodiments of the present disclosure. As shown in Figure 3, a pixel definition layer (PDL) is provided between any adjacent sub-pixels. Each blue sub-pixel region B is provided with four blue sub-pixels b, each red sub-pixel region R is provided with one red sub-pixel r, and each green sub-pixel region G is provided with one green sub-pixel g. Thus, one red sub-pixel r, one green sub-pixel g, and two blue sub-pixels b can be combined into a pixel unit 101.

[0051] In the display panel shown in FIG3 , the distance between the blue sub-pixel regions B is compressed. For a display panel with a low PPI (resolution), it is less likely to cause a grainy image, thereby reducing the visible graininess of the display panel.

[0052] In some embodiments, the light decay of the blue light emitting material is greater than the light decay of the red and green light emitting materials, and the area of ​​the blue sub-pixel in a pixel unit 101 is usually larger.

[0053] In some embodiments, referring to FIG. 1 and FIG. 3 , the red sub-pixels r and the green sub-pixels g are alternately arranged in a first direction H; and the blue sub-pixels b are continuously arranged in the first direction H.

[0054] In some embodiments, referring to Figure 1, since each pixel unit 101 includes a blue sub-pixel b, the red sub-pixel r and the green sub-pixel g are arranged in the same column, and the blue sub-pixel b is arranged in a single column, then in the column direction, that is, the first direction H, in order to ensure that the area of ​​the blue sub-pixel b is sufficient, it is necessary to set the size of the blue sub-pixel b in the first direction H to be larger than the size of the green sub-pixel g in the first direction H, and the size of the blue sub-pixel b in the first direction H to be larger than the size of the red sub-pixel r in the first direction H.

[0055] In some embodiments, referring to Figure 3, since each pixel unit 101 includes two blue sub-pixels b, the size of the blue sub-pixel b in the first direction H is smaller than the size of the red sub-pixel r in the first direction H, and the size of the blue sub-pixel b in the first direction H is smaller than the size of the green sub-pixel g in the first direction H.

[0056] In some embodiments, each blue sub-pixel region B is provided with at least three blue sub-pixels b; each red sub-pixel region R is provided with at least two red sub-pixels r; and each green sub-pixel region G is provided with at least two green sub-pixels g.

[0057] For example, Figure 4 is a schematic partial structural diagram of a display panel according to yet other embodiments of the present disclosure. As shown in Figure 4, each blue sub-pixel region B is provided with six blue sub-pixels b, each red sub-pixel region R is provided with four red sub-pixels r, and each green sub-pixel region G is provided with four green sub-pixels g. In this case, each pixel unit 101 can include one blue sub-pixel b, one red sub-pixel r, and one green sub-pixel g.

[0058] For example, FIG5 is a schematic partial structural diagram of a display panel according to some further embodiments of the present disclosure. As shown in FIG5 , each blue sub-pixel region B is provided with three blue sub-pixels b, each red sub-pixel region R is provided with four red sub-pixels r, and each green sub-pixel region G is provided with four green sub-pixels g. In this case, each pixel unit 101 may include one blue sub-pixel b, one red sub-pixel r, and one green sub-pixel g.

[0059] For example, Figure 6 is a schematic partial structural diagram of a display panel according to some other embodiments of the present disclosure. As shown in Figure 6, part of the blue sub-pixel region B is provided with three blue sub-pixels b, and part of the blue sub-pixel region B is provided with six blue sub-pixels b; part of the red sub-pixel region R is provided with two red sub-pixels r, and part of the red sub-pixel region R is provided with four red sub-pixels r; part of the green sub-pixel region G is provided with two green sub-pixels g, and part of the green sub-pixel region G is provided with four green sub-pixels g. In this case, each pixel unit 101 can include one blue sub-pixel b, one red sub-pixel r, and one green sub-pixel g.

[0060] In some embodiments, the shape of at least one type of sub-pixel region may include a rectangle, and the shape of the sub-pixels of at least one type of sub-pixel region may include a rectangle.

[0061] In some embodiments, referring to Figures 1 and 3-6 , the shapes of the red sub-pixel region R, the red sub-pixel r, the green sub-pixel region G, the green sub-pixel g, the blue sub-pixel region B, and the blue sub-pixel b may be rectangular. The shapes of the red sub-pixel r and the green sub-pixel g may be square. In other embodiments, referring to Figure 4 , the shapes of the red sub-pixel region R and the green sub-pixel region G may also be square.

[0062] In some embodiments, the aspect ratio of the shape of at least one type of sub-pixel region is equal to the aspect ratio of the shape of the corresponding sub-pixel. It should be noted that, in a rectangle, the aspect ratio is the ratio of length to width.

[0063] In some embodiments, referring to FIG. 1 and FIG. 4 , the aspect ratio of the shape of the red sub-pixel region R is equal to the aspect ratio of the shape of the red sub-pixel r, and the aspect ratio of the shape of the green sub-pixel region G is equal to the aspect ratio of the shape of the green sub-pixel g, both of which are 1:1.

[0064] In some embodiments, the aspect ratio of the shape of at least one type of sub-pixel region is greater than the aspect ratio of the shape of the corresponding sub-pixel.

[0065] In some embodiments, referring to FIG. 1 and FIG. 3 to FIG. 6 , the aspect ratio of the shape of the blue sub-pixel region B is greater than the aspect ratio of the shape of the blue sub-pixel b.

[0066] In some embodiments, the number of rows and columns of all sub-pixels in each sub-pixel region differs by 2 or less.

[0067] In some embodiments, referring to FIG. 1 , the blue sub-pixels b in the blue sub-pixel region B are arranged in a single column, and two rows of blue sub-pixels b are arranged in each blue sub-pixel region B, so the number of rows and columns differs by 1.

[0068] 4 , the blue subpixels b in the blue subpixel region B are arranged in 2 columns and 3 rows, and the number of rows and columns differs by 1. The red subpixels r in the red subpixel region R are arranged in 2 columns and 2 rows, and the number of rows and columns differs by 0.

[0069] In some embodiments, referring to FIG. 5 , the blue sub-pixels b in the blue sub-pixel region B are arranged in 1 column and 3 rows, and the number of rows and columns differs by 2.

[0070] By controlling the difference in the number of rows and columns of sub-pixels arranged within a sub-pixel region, an arrangement and combination of pixel units with higher space utilization can be obtained, thereby facilitating reasonable pixel arrangement.

[0071] In some embodiments, referring to FIG. 4 to FIG. 6 , the blue sub-pixel regions B are arranged continuously in the first direction H; the red sub-pixel regions R and the green sub-pixel regions G are arranged alternately in the first direction H. The size of the blue sub-pixel b in the first direction H is larger than the size of the red sub-pixel r in the first direction; and the size of the blue sub-pixel b in the first direction H is larger than the size of the green sub-pixel g in the first direction H.

[0072] In some embodiments, referring to Figures 4-6 , in the second direction L, the blue sub-pixel regions B and the red sub-pixel regions R are alternately arranged; and the blue sub-pixel regions B and the green sub-pixel regions G are alternately arranged. The first direction H intersects the second direction L. For example, the first direction H and the second direction L can be perpendicular to each other. The first direction H can serve as a column direction, and the second direction L can serve as a row direction.

[0073] In some embodiments, referring to Figure 4, the distance between adjacent blue sub-pixel regions B in the first direction H is a first distance h1, and the shortest distance between adjacent red sub-pixel regions R and green sub-pixel regions G in the first direction H is a third distance h3, and the first distance h1 is greater than the third distance h3.

[0074] In some embodiments, referring to Figures 4-6, the size of the blue sub-pixel region B in the first direction H is larger than the size of the red sub-pixel region R in the first direction H; the size of the blue sub-pixel region B in the first direction H is larger than the size of the green sub-pixel region G in the first direction.

[0075] In some embodiments, referring to FIG. 5 and FIG. 6 , when three blue sub-pixels b are provided in a blue sub-pixel region B, the three blue sub-pixels b in the same blue sub-pixel region B are arranged in a single row in the first direction H, that is, in a single column.

[0076] In some embodiments, referring to Figures 4 and 6, when six blue sub-pixels b are provided in the blue sub-pixel region B, the six blue sub-pixels b of the same blue sub-pixel region B are arranged in two rows in the first direction H, that is, arranged in two columns, which is beneficial to the arrangement and division of the pixel units.

[0077] For example, Table 1 shows the aperture ratio data corresponding to different pixel structures.

[0078] Table 1

[0079] As shown in Table 1, compared with the pixel arrangement structure in the related art shown in Figure 2, the display panel provided by some embodiments of the present disclosure sets at least two sub-pixels in any sub-pixel area to correspond to one opening of an evaporation mask, which can greatly improve the aperture ratio of the display panel, and thus improve the display brightness, display effect and display life of the display panel.

[0080] Some embodiments of the present disclosure provide an evaporation mask for use in preparing the display panel provided in any one of the embodiments above. The evaporation mask includes at least two types of openings, each type of opening being used to prepare a light-emitting material corresponding to a type of sub-pixel area of ​​the display panel. Each opening is used to prepare a light-emitting material corresponding to a sub-pixel area of ​​the display panel. The distance between two adjacent types of openings is greater than the distance between two adjacent sub-pixels in the same sub-pixel area on the display panel. Two adjacent rows of openings arranged in a first direction include different types of openings for preparing light-emitting materials of different colors, the distance between two adjacent openings of the same type in one of the two adjacent rows is the fourth distance, the size of another type of opening in the other of the two adjacent rows in the first direction is the fifth distance, and the fourth distance is smaller than the fifth distance.

[0081] For example, FIG7 is a schematic partial structural diagram of an evaporation mask according to some embodiments of the present disclosure. As shown in FIG7 , the openings include a red opening R0, a green opening G0, and a blue opening B0. The red opening R0 is used to prepare the red light-emitting material in the red sub-pixel region R on the display panel, the green opening G0 is used to prepare the green light-emitting material in the green sub-pixel region G on the display panel, and the blue opening B0 is used to prepare the blue light-emitting material in the blue sub-pixel region B on the display panel. The blue opening B0 and the red opening R0 are arranged in two adjacent columns, and the blue opening B0 and the green opening G0 are arranged in two adjacent columns. The red opening R0 and the green opening G0 can be arranged in the same column, or they can be arranged in adjacent columns. The distance between two adjacent blue openings B0 is a third spacing h03, which is greater than the second spacing h02 on the display panel. The embodiment corresponding to FIG7 takes the example of using the blue opening B0 to prepare two blue sub-pixels located in the same blue sub-pixel region B. The distance between two adjacent blue sub-pixels b in the same blue sub-pixel region B on the display panel is the second spacing h02.

[0082] The blue openings B0 and red openings R0 arranged in the first direction H belong to two adjacent columns. The blue openings B0 and green openings G0 arranged in the first direction H belong to two adjacent columns. The red openings R0 and green openings G0 arranged in the first direction H can be in the same column or in adjacent columns. The distance between two adjacent red openings R0 in one of the two adjacent columns is a fourth distance h4, and the size of the blue openings B0 in the other of the two adjacent columns in the first direction is a fifth distance h5. The distance between two adjacent blue openings B0 in one of the two adjacent columns is a fourth distance h4, and the size of the green openings G0 in the other of the two adjacent columns in the first direction H is a fifth distance h5. The size of the red openings R0 in the first direction H is a fifth distance h5, and the fourth distance h4 is smaller than the fifth distance h5. It should be noted that the fourth distance h4 and the fifth distance h5 correspond to two adjacent columns, not the same column.

[0083] The evaporation mask provided in some embodiments of the present disclosure is configured to prepare luminescent materials for a sub-pixel region of a display panel by setting at least one type of opening corresponding to the luminescent material of a sub-pixel region of the display panel; each opening is used to prepare luminescent materials for a sub-pixel region of the display panel; and one opening can prepare luminescent materials in at least two sub-pixels of the display panel. This can reduce the number of openings and the distance between the openings, compress the total area of ​​the region between the openings of the entire display panel, and improve the aperture ratio of the display panel. In addition, the distance between two adjacent types of openings is greater than the distance between two adjacent sub-pixels in the same sub-pixel region on the display panel; the openings of two adjacent rows arranged in the first direction include openings corresponding to the preparation of luminescent materials of different colors, the distance between two adjacent openings of the same type in one of the two adjacent rows is the fourth distance, and the size of another type of opening in the other of the two adjacent rows in the first direction is the fifth distance, and the fourth distance is less than the fifth distance. This ensures that the distance between the openings is compressed, and the aperture ratio of the display panel is improved.

[0084] For example, Figure 8 is a schematic partial structural diagram of an evaporation mask according to other embodiments of the present disclosure. As shown in Figure 8 , blue openings B0 are arranged continuously in a first direction H; red openings R0 and green openings G0 are arranged alternately in the first direction H; the distance between adjacent blue openings B0 arranged in the first direction H is a third spacing h03, and the distance between adjacent red openings R0 and green openings G0 arranged in the first direction H is a fourth spacing h04, where the third spacing h03 is greater than the fourth spacing h04. The specific distance between the openings can be set according to the required combination of pixel units. For example, the evaporation mask corresponding to the embodiment of Figure 8 can be used to prepare the display panel corresponding to the embodiment of Figure 4.

[0085] Some embodiments of the present disclosure provide a display device. For example, FIG9 is a schematic structural diagram of a display device according to some embodiments of the present disclosure. As shown in FIG9 , the display device includes a display panel 1000 provided in any of the above embodiments.

[0086] It should be noted that the display device provided in the embodiments of the present disclosure may include a smart phone, a tablet computer, a laptop computer, a television, and a smart wearable display device, etc. The smart wearable display device may include a smart watch, etc., and the present disclosure does not make specific limitations on this.

[0087] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0088] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

[0089] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this disclosure.

[0090] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A display panel, comprising: At least two types of sub-pixel regions, each type of sub-pixel region is used to emit light of one color, each sub-pixel region is provided with a sub-pixel, and each sub-pixel is provided with a luminescent material; wherein, Each of the sub-pixel regions of at least one type of the sub-pixel regions is provided with at least two sub-pixels; The light-emitting materials of all the sub-pixels in any sub-pixel region are obtained by setting an opening of a vapor deposition mask; The distance between two adjacent sub-pixel regions is greater than the distance between two adjacent sub-pixels in the same sub-pixel region; and Two adjacent rows of sub-pixel areas arranged in a first direction include sub-pixel areas of different colors, a distance between two adjacent sub-pixel areas of the same type in one of the two adjacent rows is a first distance, a size of another type of sub-pixel area in the other of the two adjacent rows in the first direction is a second distance, and the first distance is smaller than the second distance.

2. The display panel according to claim 1, further comprising: A pixel defining layer is disposed between adjacent sub-pixels; Each of the sub-pixel regions of at least one type of sub-pixel region is provided with at least two sub-pixels, and each of the sub-pixel regions of at least one type of sub-pixel region is provided with one sub-pixel; or, Each of the sub-pixel regions is provided with at least two sub-pixels.

3. The display panel according to claim 1, wherein: The sub-pixel region includes a red sub-pixel region, a green sub-pixel region and a blue sub-pixel region, and the sub-pixels include a red sub-pixel, a green sub-pixel and a blue sub-pixel; Each of the blue sub-pixel regions is provided with at least two blue sub-pixels; Each of the red sub-pixel regions is provided with a red sub-pixel; as well as Each of the green sub-pixel regions is provided with a green sub-pixel.

4. The display panel according to claim 3, further comprising: A plurality of pixel units; Each of the blue sub-pixel regions is provided with four blue sub-pixels, and each of the pixel units includes one red sub-pixel, one green sub-pixel and two blue sub-pixels.

5. The display panel according to claim 4, wherein: The red sub-pixels and the green sub-pixels are alternately arranged in the first direction; The blue sub-pixels are arranged continuously in the first direction; as well as The size of the blue sub-pixel in the first direction is smaller than the size of the red sub-pixel in the first direction, and / or the size of the blue sub-pixel in the first direction is smaller than the size of the green sub-pixel in the first direction.

6. The display panel according to claim 1, wherein: The sub-pixel region includes a red sub-pixel region, a green sub-pixel region and a blue sub-pixel region. The sub-pixels include a red sub-pixel, a green sub-pixel and a blue sub-pixel; Each of the blue sub-pixel regions is provided with at least three blue sub-pixels; Each of the red sub-pixel regions is provided with at least two of the red sub-pixels; as well as Each of the green sub-pixel regions is provided with at least two green sub-pixels.

7. The display panel according to claim 6, wherein: Each of the blue sub-pixel regions is provided with six of the blue sub-pixels, each of the red sub-pixel regions is provided with four of the red sub-pixels, and each of the green sub-pixel regions is provided with four of the green sub-pixels; or, Part of the blue sub-pixel area is provided with three of the blue sub-pixels, and part of the blue sub-pixel area is provided with six of the blue sub-pixels; part of the red sub-pixel area is provided with two of the red sub-pixels, and part of the red sub-pixel area is provided with four of the red sub-pixels; part of the green sub-pixel area is provided with two of the green sub-pixels, and part of the green sub-pixel area is provided with four of the green sub-pixels.

8. The display panel according to claim 6, further comprising: A plurality of pixel units, each of the pixel units comprises one red sub-pixel, one green sub-pixel and one blue sub-pixel.

9. The display panel according to claim 7, wherein: The blue sub-pixel regions are arranged continuously in the first direction; The red sub-pixel regions and the green sub-pixel regions are alternately arranged in the first direction; as well as The size of the blue sub-pixel in the first direction is larger than the size of the red sub-pixel in the first direction, and / or the size of the blue sub-pixel in the first direction is larger than the size of the green sub-pixel in the first direction.

10. The display panel according to claim 9, wherein: In the second direction, the blue sub-pixel regions and the red sub-pixel regions are arranged alternately, and / or the blue sub-pixel regions and the green sub-pixel regions are arranged alternately; The first direction intersects the second direction.

11. The display panel according to claim 5 or 9, wherein: The distance between the blue sub-pixel regions adjacent to each other in the first direction is the first distance; The minimum size of the red sub-pixel region or the green sub-pixel region in the first direction is the second distance.

12. The display panel according to claim 5 or 9, wherein: The distance between the blue sub-pixel regions adjacent to each other in the first direction is the first distance, the shortest distance between the red sub-pixel region and the green sub-pixel region adjacent to each other in the first direction is the third distance, and the first distance is greater than the third distance.

13. The display panel according to claim 5 or 9, wherein: The size of the blue sub-pixel region in the first direction is larger than the size of the red sub-pixel region in the first direction, and / or the size of the blue sub-pixel region in the first direction is larger than the size of the green sub-pixel region in the first direction.

14. The display panel according to claim 1, wherein: The shape of at least one type of the sub-pixel regions comprises a rectangle, and the shape of the sub-pixels of at least one type of the sub-pixel regions comprises a rectangle; The aspect ratio of the shape of at least one type of the sub-pixel region is equal to the aspect ratio of the shape of the corresponding sub-pixel; and / or, The aspect ratio of the shape of at least one type of the sub-pixel regions is greater than the aspect ratio of the shape of the corresponding sub-pixel.

15. The display panel according to claim 1, wherein: The number of rows and columns of all the sub-pixels in each sub-pixel region differs by 2 or less than 2.

16. The display panel according to claim 9, wherein: In a case where three blue sub-pixels are provided in the blue sub-pixel region, the three blue sub-pixels in the same blue sub-pixel region are arranged in a single row in the first direction; In the case where six blue sub-pixels are disposed in the blue sub-pixel region, the six blue sub-pixels in the same blue sub-pixel region are arranged in two rows in the first direction.

17. The display panel according to claim 1, wherein: The colors of the emitted light corresponding to two adjacent rows of sub-pixel areas arranged in the first direction are different.

18. An evaporation mask used for preparing the display panel according to any one of claims 1 to 17, the evaporation mask comprising at least two types of openings, each type of opening being used for preparing a light-emitting material of a type of sub-pixel region of the display panel; wherein: Each of the openings is used to prepare the light-emitting material of a sub-pixel region of the display panel; The distance between two adjacent types of the openings is greater than the distance between two adjacent sub-pixels in the same sub-pixel area on the display panel; as well as The two adjacent rows of openings arranged in the first direction include different types of openings for preparing the luminescent materials of different colors. The openings, the distance between two adjacent openings of the same type in one of two adjacent rows is a fourth distance, the size of another type of openings in the other of two adjacent rows in the first direction is a fifth distance, and the fourth distance is smaller than the fifth distance.

19. A display device comprising: A display panel as claimed in any one of claims 1 to 17.

Images