Display panel, display device and mask

Abstract

An embodiment of the present disclosure provides a display panel, comprising: a plurality of pixel units, the plurality of pixel units being arranged in an array; the pixel units comprising a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel having different luminous colors and increasing areas in sequence; along the column direction of the array, in adjacent pixel units, the second sub-pixel of the previous pixel unit and the first sub-pixel of the next pixel unit are arranged adjacent to each other; the third sub-pixels of adjacent pixel units are arranged in sequence; along the column direction of the array, adjacent third sub-pixels in adjacent pixel units have a minimum spacing and a maximum spacing between them; in adjacent pixel units, the second sub-pixel of the previous pixel unit and the first sub-pixel of the next pixel unit are spaced by a first spacing; the first spacing is greater than the minimum spacing and less than the maximum spacing.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the field of display technology, and specifically relate to a display panel, a display device, and a mask. Background Art

[0002] OLED display panels, which use organic light-emitting diode (OLED) technology, have become the mainstream development direction in the field of display technology due to their advantages such as self-luminescence, high brightness, good image quality and power saving.

[0003] The OLED display panel includes multiple sub-pixels for emitting light of different colors; the OLED display panel includes multiple pixel units, each of which is composed of multiple sub-pixels of different colors. The color of each pixel unit of the display panel can be adjusted by adjusting the brightness of these sub-pixels. The sub-pixels of different colors are formed by evaporating organic light-emitting materials using a high-precision mask. Summary of the invention

[0004] Embodiments of the present disclosure provide a display panel, a display device, and a mask.

[0005] In a first aspect, an embodiment of the present disclosure provides a display panel, comprising: a plurality of pixel units, the plurality of pixel units being arranged in an array;

[0006] The pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel have different luminous colors and their areas increase in sequence;

[0007] Along the column direction of the array, in adjacent pixel units, the second sub-pixel of the previous pixel unit and the first sub-pixel of the next pixel unit are arranged adjacent to each other; and the third sub-pixels of adjacent pixel units are arranged in sequence;

[0008] Along the column direction of the array, adjacent third sub-pixels in adjacent pixel units have a minimum spacing and a maximum spacing; the second sub-pixel of the adjacent previous pixel unit and the first sub-pixel of the next pixel unit in adjacent pixel units are spaced by a first spacing;

[0009] The first spacing is greater than the minimum spacing and less than the maximum spacing.

[0010] In some embodiments, the pixel unit includes a sub-unit;

[0011] The sub-unit includes one of the first sub-pixel, one of the second sub-pixel and one of the third sub-pixel;

[0012] Among them, the first sub-pixel and the second sub-pixel are arranged along the column direction of the array to form a first sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction of the array.

[0013] In some embodiments, the pixel unit includes one or more than two sub-units;

[0014] More than two sub-units are arranged along the column direction of the array.

[0015] In some embodiments, within the sub-unit, the first sub-pixel and the second sub-pixel are spaced apart by the first spacing; the first sub-pixel and the third sub-pixel are spaced apart by the first spacing; and the second sub-pixel and the third sub-pixel are spaced apart by the first spacing.

[0016] In some embodiments, in adjacent sub-units within the pixel unit, the first sub-pixel of the previous sub-unit and the second sub-pixel of the next sub-unit are adjacent and are spaced by the first interval;

[0017] The third sub-pixel of the previous sub-unit and the third sub-pixel of the next sub-unit are spaced apart by a second interval, and the second interval is smaller than the minimum interval.

[0018] In some embodiments, in adjacent sub-units within the pixel unit, the third sub-pixel of the previous sub-unit and the third sub-pixel of the next sub-unit are mirror-symmetric.

[0019] In some embodiments, the pixel unit includes a first sub-unit and a second sub-unit, and the first sub-unit and the second sub-unit are arranged along a column direction of the array;

[0020] The first sub-unit includes two of the first sub-pixels and one of the third sub-pixels;

[0021] The second sub-unit includes two of the second sub-pixels and one of the third sub-pixels;

[0022] Wherein, in the first sub-unit, two of the first sub-pixels are arranged along the column direction of the array to form a first sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction of the array;

[0023] In the second sub-unit, two of the second sub-pixels are arranged along the column direction of the array to form a third sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a fourth sub-column; the third sub-column and the fourth sub-column are arranged along the row direction of the array;

[0024] The first sub-column and the third sub-column are located in the same column; the second sub-column and the fourth sub-column are located in the same column.

[0025] In some embodiments, the first sub-pixel in the first sub-unit and the second sub-pixel in the second sub-unit are spaced apart by the first spacing;

[0026] The first sub-pixel and the third sub-pixel in the first sub-unit are spaced by the first spacing;

[0027] The second sub-pixel and the third sub-pixel in the second sub-unit are spaced apart by the first interval.

[0028] In some embodiments, two of the first sub-pixels in the first sub-unit are spaced apart by a third interval;

[0029] Two of the second sub-pixels in the second sub-unit are spaced apart by a fourth interval;

[0030] The third sub-pixel in the first sub-unit is spaced apart from the third sub-pixel in the second sub-unit by a fifth interval.

[0031] In some embodiments, the third spacing, the fourth spacing, and the fifth spacing are respectively smaller than the minimum spacing.

[0032] In some embodiments, the third spacing, the fourth spacing, and the fifth spacing are respectively equal to the first spacing.

[0033] In some embodiments, the two first sub-pixels in the first sub-unit are mirror-symmetrical;

[0034] The two second sub-pixels in the second sub-unit are mirror-symmetrical;

[0035] The third sub-pixel in the first sub-unit and the third sub-pixel in the second sub-unit are mirror-symmetrical.

[0036] In some embodiments, the pixel unit includes a plurality of first sub-units and a plurality of second sub-units, and the first sub-units and the second sub-units are alternately arranged along a column direction of the array.

[0037] In some embodiments, adjacent third sub-pixels in adjacent pixel units are mirror-symmetrical.

[0038] In some embodiments, the orthographic projection shape of the first sub-pixel on the display panel includes a rectangle, a triangle, a diamond or a trapezoid;

[0039] The orthographic projection shape of the second sub-pixel on the display panel includes a rectangle, a triangle, a rhombus or a trapezoid;

[0040] The orthographic projection shape of the third sub-pixel on the display panel includes a rhombus, a triangle, a diamond, a trapezoid, a polygon or an irregular shape.

[0041] In some embodiments, a plurality of supports are further included, and the plurality of supports are respectively arranged at the maximum spacing positions between adjacent third sub-pixels in adjacent pixel units along the column direction of the array, and the supports are spaced apart from the third sub-pixels.

[0042] In some embodiments, the orthographic projection shape of the support on the display panel includes a rectangle, a circle, an ellipse, a triangle, a trapezoid, a regular polygon or an irregular shape.

[0043] In some embodiments, the first sub-pixel, the second sub-pixel and the third sub-pixel respectively include an anode layer, a light-emitting functional layer and a cathode layer stacked in sequence;

[0044] The anode layers of the first sub-pixel, the second sub-pixel and the third sub-pixel are independent of each other, the light-emitting functional layers are independent of each other, and the cathode layers are connected as one;

[0045] The orthographic projection shapes of the anode layers of the first sub-pixel, the second sub-pixel and the third sub-pixel on the display panel are respectively the same as the orthographic projection shapes of the sub-pixels to which they belong on the display panel.

[0046] In a second aspect, an embodiment of the present disclosure further provides a display device, comprising the above-mentioned display panel.

[0047] In a third aspect, the embodiments of the present disclosure further provide a mask, comprising a substrate;

[0048] The base body is provided with a plurality of first openings;

[0049] Alternatively, a plurality of second openings are provided in the base body;

[0050] Alternatively, a plurality of third openings are provided in the base body;

[0051] The plurality of first openings correspond one-to-one to each first sub-pixel in each pixel unit; or, the plurality of first openings correspond one-to-one to all first sub-pixels in each pixel unit;

[0052] The plurality of second openings correspond one-to-one to each second sub-pixel in each pixel unit; or, the plurality of second openings correspond one-to-one to all second sub-pixels in each pixel unit;

[0053] The plurality of third openings correspond one-to-one to each third sub-pixel in each pixel unit; or, the plurality of third openings correspond one-to-one to all third sub-pixels in each pixel unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing detailed example embodiments with reference to the accompanying drawings, in which:

[0055] Figure 1 A schematic top view of an arrangement structure of sub-pixels within a pixel unit of an OLED display panel in the disclosed technology;

[0056] Figure 2 It is a top view schematic diagram of another arrangement structure of sub-pixels in a pixel unit of an OLED display panel in the disclosed technology;

[0057] Figure 3 A schematic top view of an arrangement structure of pixel units of a display panel in an embodiment of the present disclosure;

[0058] Figure 4 is a schematic diagram of the graphic shapes of the first sub-pixel and the second sub-pixel in the embodiment of the present disclosure;

[0059] Figure 5 is a schematic diagram of the graphic shape of the third sub-pixel in the embodiment of the present disclosure;

[0060] Figure 6 It is a top view schematic diagram of another arrangement structure of the pixel units of the display panel in the embodiment of the present disclosure;

[0061] Figure 7 is a schematic cross-sectional view of the structure of each sub-pixel in the display panel in an embodiment of the present disclosure;

[0062] Figure 8a For evaporation Figure 3 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a first sub-pixel;

[0063] Figure 8b For evaporation Figure 3 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a second sub-pixel;

[0064] Figure 8c For evaporation Figure 3A schematic diagram of a mask opening pattern of a light-emitting functional layer of a third sub-pixel;

[0065] Figure 8d For evaporation Figure 3 and Figure 6 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a third sub-pixel;

[0066] Fig. 9 A schematic diagram of the graphic shape of a support in a display panel in an embodiment of the present disclosure;

[0067] Fig.10 It is a top view schematic diagram of another arrangement structure of the pixel units of the display panel in the embodiment of the present disclosure;

[0068] Fig.11a For evaporation Fig.10 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a third sub-pixel;

[0069] Fig.11b For evaporation Fig.10 A schematic diagram of another mask opening pattern of the light-emitting functional layer of the third sub-pixel;

[0070] Fig.12 It is a top view schematic diagram of another arrangement structure of the pixel units of the display panel in the embodiment of the present disclosure;

[0071] Fig.13a For evaporation Fig.12 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a first sub-pixel;

[0072] Fig.13b For evaporation Fig.12 A schematic diagram of a mask opening pattern of a light-emitting functional layer of a second sub-pixel;

[0073] Fig.13c For evaporation Fig.12 Schematic diagram of the mask opening pattern of the light-emitting functional layer of the third sub-pixel.

[0074] The accompanying drawings are denoted as follows:

[0075] 1. Pixel unit; 11. First sub-pixel; 12. Second sub-pixel; 13. Third sub-pixel; 2. Driving backplane; 3. Pixel defining layer; 101. Anode layer; 102. Light-emitting functional layer; 103. Cathode layer; 100. Sub-unit; 4. Support; 104. First sub-unit; 105. Second sub-unit; 5. Substrate; 51. First opening; 52. Second opening; 53. Third opening; 14. Sub-pixel. DETAILED DESCRIPTION

[0076] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, a display panel, a display device and a mask provided by the embodiments of the present disclosure are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0077] The embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings, but the embodiments shown may be embodied in different forms and should not be construed as being limited to the embodiments set forth in the present disclosure. On the contrary, the purpose of providing these embodiments is to make the present disclosure thorough and complete and to enable those skilled in the art to fully understand the scope of the present disclosure.

[0078] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings have schematic properties, and the shapes of the regions shown in the drawings illustrate the specific shapes of the regions, but are not intended to be limiting.

[0079] In the disclosed technology, refer to Figure 1 and Figure 2 , an OLED (Organic Light-Emitting Display) display panel includes a plurality of pixel units 1, each pixel unit 1 includes red, green, and blue sub-pixels 14, the red, green, and blue sub-pixels 14 are of the same shape, and the orthographic projection shapes of the red, green, and blue sub-pixels 14 on the display panel are usually rectangular. The red, green, and blue sub-pixels 14 in each pixel unit 1 are arranged along a straight line, or the arrangement position lines of the red, green, and blue sub-pixels 14 in each pixel unit 1 can form a triangle. The spacing between the red, green, and blue sub-pixels 14 in each pixel unit 1 is relatively large, and the spacing between adjacent pixel units 1 is also relatively large. The spacing between any adjacent sub-pixels 14 in adjacent pixel units 1 remains consistent (i.e., a spacing of a single size).

[0080] The above-mentioned pixel unit arrangement of the OLED display panel has poor R / G (red / green) pure color image presentation, no visual resolution guarantee, poor oblique line continuity, inability to display single-pixel black and white dots, and limited opening area of ​​each sub-pixel in the pixel unit, resulting in relatively high process difficulty in making the mask template used for the evaporated light-emitting functional layer and using the screen.

[0081] In addition, in the OLED display panel, a support 4 is arranged between adjacent pixel units 1. The support 4 is used to avoid adhesion between the substrate to be plated and the mask when evaporating the light-emitting functional layer material. A larger spacing needs to be set between adjacent pixel units 1 to accommodate the support 4. And the orthographic projection area of ​​the support 4 on the display panel is large, which can easily cause the mask to scratch the support 4, thereby easily causing foreign matter problems caused by the scratches.

[0082] In view of the above problems existing in the OLED display panel in the disclosed technology, the present disclosure provides a display panel, referring to Figure 3 , including: a plurality of pixel units 1, the plurality of pixel units 1 are arranged in an array; the pixel unit 1 includes a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13; the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 have different luminous colors and their areas increase sequentially; along the column direction L of the array, in adjacent pixel units 1, the second sub-pixel 12 of the previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 are arranged adjacently; the third sub-pixels 13 of adjacent pixel units 1 are arranged sequentially; along the column direction L of the array, there is a minimum spacing d and a maximum spacing e between adjacent third sub-pixels 13 in adjacent pixel units 1; in adjacent pixel units 1, the second sub-pixel 12 of the previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 are spaced by a first spacing a; the first spacing a is greater than the minimum spacing d and less than the maximum spacing e.

[0083] Among them, the third sub-pixel 13 with the largest area has the lowest luminous efficiency, the first sub-pixel 11 with the smallest area has the highest luminous efficiency, and the second sub-pixel 12 with an area between the third sub-pixel 13 and the first sub-pixel 11 also has a luminous efficiency between the two. For example, in actual applications, the first sub-pixel 11, the second sub-pixel 12 and the third sub-pixel 13 are red, green and blue sub-pixels, respectively. In this embodiment, the adjacent third sub-pixels 13 in adjacent pixel units 1 refer to the third sub-pixel 13 of the previous pixel unit 1 and the third sub-pixel 13 of the next pixel unit 1 being adjacent. There is a minimum spacing d and a maximum spacing e between the adjacent third sub-pixels 13 in the adjacent pixel units 1, that is, the spacing between the adjacent third sub-pixels 13 in the adjacent pixel units 1 is not a single size, which makes the shape of the third sub-pixel 13 no longer a regular rectangular shape in the public technology. The second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 in adjacent pixel units 1 are spaced by a first spacing a, that is, the spacing between the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 in adjacent pixel units 1 is of a single size.

[0084] In some embodiments, reference Figure 4 , the orthographic projection shape of the first sub-pixel 11 on the display panel includes a rectangle, a triangle, a rhombus or a trapezoid; the orthographic projection shape of the second sub-pixel 12 on the display panel includes a rectangle, a triangle, a rhombus or a trapezoid; refer to Figure 5 The orthographic projection shape of the third sub-pixel 13 on the display panel includes a rectangle, a triangle, a rhombus, a trapezoid, a polygon or an irregular shape.

[0085] In some embodiments, reference Figure 3, the orthographic projection shape of the first sub-pixel 11 on the display panel is a rectangle, the orthographic projection shape of the second sub-pixel 12 on the display panel is a rectangle, and the orthographic projection shape of the third sub-pixel 13 on the display panel is a trapezoid. The shorter upper base and the longer lower base of the trapezoid both extend along the column direction L of the array. One set of mutually parallel opposite sides of the rectangle is along the column direction L of the array, and the other set of mutually parallel opposite sides of the rectangle is along the row direction M of the array.

[0086] In some embodiments, reference Figure 3 , the minimum spacing d between adjacent third sub-pixels 13 in adjacent pixel units 1 is the spacing between adjacent end points of the longer lower bottom sides of adjacent third sub-pixels 13. The maximum spacing e between adjacent third sub-pixels 13 in adjacent pixel units 1 is the spacing between adjacent end points of the shorter upper bottom sides of adjacent third sub-pixels 13. The first spacing a between the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 in adjacent pixel units 1 is the spacing between the adjacent, parallel and row-direction M-of-array sides of the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1.

[0087] In some embodiments, reference Figure 6 , the orthographic projection shape of the first sub-pixel 11 on the display panel is a rectangle, the orthographic projection shape of the second sub-pixel 12 on the display panel is a rectangle, and the orthographic projection shape of the third sub-pixel 13 on the display panel is an irregular trapezoid; one set of opposite sides of the irregular trapezoid are straight lines parallel to each other and extending along the column direction L of the array, and the other set of opposite sides are arc lines concave in opposite directions along the column direction L of the array. Among them, one set of opposite sides of the rectangle parallel to each other is along the column direction L of the array, and the other set of opposite sides of the rectangle parallel to each other is along the row direction M of the array.

[0088] In some embodiments, reference Figure 6 , the minimum spacing d between adjacent third sub-pixels 13 in adjacent pixel units 1 is the spacing between two points on two adjacent arc edges of the adjacent third sub-pixels 13 with the smallest distance along the column direction L of the array. The maximum spacing e between adjacent third sub-pixels 13 in adjacent pixel units 1 is the spacing between two points on two adjacent arc edges of the adjacent third sub-pixels 13 with the largest distance along the column direction L of the array. The first spacing a between the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 in adjacent pixel units 1 is the spacing between the adjacent, parallel and row direction M sides of the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1.

[0089] In some embodiments, reference Figure 7The display panel includes a driving backplane 2 and a pixel defining layer 3 disposed on the driving backplane 2, wherein the pixel defining layer 3 defines a plurality of pixel regions, wherein the pixel regions are used to set sub-pixels. The first sub-pixel, the second sub-pixel, and the third sub-pixel respectively include an anode layer 101, a light-emitting functional layer 102, and a cathode layer 103 stacked in sequence; the anode layers 101 of the first sub-pixel, the second sub-pixel, and the third sub-pixel are independent of each other, the light-emitting functional layers 102 are independent of each other, and the cathode layer 103 is connected as a whole; the orthographic projection shapes of the anode layers 101 of the first sub-pixel, the second sub-pixel, and the third sub-pixel on the display panel are respectively the same as the orthographic projection shapes of the sub-pixels to which they belong on the display panel.

[0090] In some embodiments, reference Figure 8a-8d The opening patterns on the mask for evaporating the light-emitting functional layer 102 of the first sub-pixel and the second sub-pixel can be rectangular; the opening pattern on the mask for evaporating the light-emitting functional layer 102 of the third sub-pixel can be Figure 8c The trapezoid shown in Figure 6 The irregular trapezoid shown in Figure 8d That is, in this embodiment, the plurality of first openings 51 opened in the mask substrate 5 correspond one-to-one to each first sub-pixel in each pixel unit 1 (refer to Figure 8a ); the plurality of second openings 52 opened in the mask substrate 5 correspond one-to-one to each second sub-pixel in each pixel unit 1 (refer to Figure 8b ); The plurality of third openings 53 opened in the mask substrate 5 correspond one-to-one to each third sub-pixel in each pixel unit 1 (refer to Figure 8c ), or, the plurality of third openings 53 opened in the mask substrate 5 correspond one-to-one to all the third sub-pixels in each pixel unit 1 (refer to Figure 8d ). Since the orthographic projection shape of the anode layer 101 of the third sub-pixel on the display panel is the same as the orthographic projection shape of the third sub-pixel on the display panel, the evaporation of the light-emitting functional layer 102 of the third sub-pixel through the mask with a rectangular opening does not affect the shape of the light-emitting area of ​​the third sub-pixel when emitting light, thereby ensuring the precise control of the luminous efficiency of the third sub-pixel; in addition, the anode layer 101 is formed into various regular or irregular shapes through a composition process, which is relatively easy to prepare; further, by using a rectangular mask opening to evaporate the light-emitting functional layer 102 of the third sub-pixel, the process difficulty of making the mask used for evaporating the light-emitting functional layer and using the net can be reduced.

[0091] In the present embodiment, the above-mentioned pixel units 1 of the display panel are arranged so that along the column direction L of the array, adjacent third sub-pixels 13 in adjacent pixel units 1 have a minimum spacing d and a maximum spacing e; the second sub-pixel 12 of the adjacent previous pixel unit 1 and the first sub-pixel 11 of the next pixel unit 1 in adjacent pixel units 1 are spaced by a first spacing a; the first spacing a is greater than the minimum spacing d and less than the maximum spacing e, which can make a monochrome pure color picture (such as a red / green picture) have a better presentation, ensure visual resolution, and have good continuity of oblique lines, so that the pixel unit 1 can display black and white dots, and can increase the opening area of ​​each sub-pixel in the pixel unit 1, thereby reducing the process difficulty of making a mask template and using a mesh for evaporating the light-emitting functional layer.

[0092] In some embodiments, reference Figure 3 and Figure 6 , the pixel unit 1 includes sub-units; the sub-units include a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13; wherein the first sub-pixel 11 and the second sub-pixel 12 are arranged along the column direction L of the array to form a first sub-column; the length direction of the third sub-pixel 13 is along the column direction L of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction M of the array.

[0093] In some embodiments, the pixel unit 1 includes one sub-unit.

[0094] In some embodiments, within a sub-unit, the first sub-pixel 11 and the second sub-pixel 12 are spaced by a first spacing a; the first sub-pixel 11 and the third sub-pixel 13 are spaced by a first spacing a; and the second sub-pixel 12 and the third sub-pixel 13 are spaced by a first spacing a.

[0095] In some embodiments, reference Figure 3 , the first spacing a between the first sub-pixel 11 and the second sub-pixel 12 is the spacing between the adjacent, parallel and row-direction M sides of the first sub-pixel 11 and the second sub-pixel 12. The first spacing a between the first sub-pixel 11 and the third sub-pixel 13 is the spacing between the adjacent, parallel and row-direction M sides of the first sub-pixel 11 and the third sub-pixel 13. The first spacing a between the second sub-pixel 12 and the third sub-pixel 13 is the spacing between the adjacent, parallel and row-direction M sides of the second sub-pixel 12 and the third sub-pixel 13.

[0096] In some embodiments, reference Figure 3 and Figure 6 , the adjacent third sub-pixels 13 in the adjacent pixel units 1 are mirror-symmetrical.

[0097] In some embodiments, the display panel further comprises a plurality of supports 4, which are respectively arranged at the maximum spacing e position between the adjacent third sub-pixels 13 in the adjacent pixel units 1 along the column direction L of the array, and the supports 4 and the third sub-pixels 13 are spaced from each other. Among them, the supports 4 are used to support the mask when the light-emitting functional layer material is evaporated to avoid adhesion between the substrate to be plated and the mask. The supports 4 are arranged on the pixel defining layer, and the supports 4 are made of the same material as the pixel defining layer, such as a photoresist material or a resin material. By making the supports 4 located at the maximum spacing e position between the adjacent third sub-pixels 13 in the adjacent pixel units 1 along the column direction L of the array, relative to the technical solution in the disclosed technology, the arrangement of the supports 4 makes it unnecessary to set a large spacing between the adjacent pixel units 1, thereby increasing the opening area of ​​each sub-pixel in the pixel unit 1, thereby not only improving the luminous efficiency of each sub-pixel, but also reducing the difficulty of making the mask used for evaporating the light-emitting functional layer and using the net. In addition, the orthographic projection area of ​​the support 4 arranged at the maximum spacing e on the display panel can be set relatively small, so that it is not easy to cause the mask template to scratch the support 4 when evaporating the light-emitting functional layer material, thereby avoiding the foreign matter problem caused by scratching.

[0098] In some embodiments, reference Fig. 9 The orthographic projection shape of the support 4 on the display panel includes a rectangle, a circle, an ellipse, a triangle, a trapezoid, a regular polygon or an irregular shape. The orthographic projection shape of the support 4 on the display panel can be any shape that can be prepared, and there is no limitation here.

[0099] In some embodiments, the driving backplane 2 includes a pixel driving circuit, which can be any driving circuit capable of driving each sub-pixel to emit light, and the preparation of each film layer in the driving backplane 2 also adopts a conventional process, which will not be described in detail here. The preparation of each sub-pixel, the mask pattern of the anode layer 101 is designed according to its actual pattern; the mask pattern of the evaporated light-emitting functional layer 102 is designed according to its actual pattern or a rectangular design; the preparation of other film layers of each sub-pixel adopts a conventional process, and no improvement is made, which will not be described in detail here.

[0100] The present disclosure also provides a display panel, which is different from the above embodiments in that: Fig.10 , the pixel unit 1 includes more than two sub-units 100; the more than two sub-units 100 are arranged along the column direction L of the array.

[0101] In some embodiments, in adjacent sub-units 100 within the pixel unit 1, the first sub-pixel 11 of the previous sub-unit 100 and the second sub-pixel 12 of the next sub-unit 100 are adjacent and separated by a first spacing a; the third sub-pixel 13 of the previous sub-unit 100 and the third sub-pixel 13 of the next sub-unit 100 are separated by a second spacing f, and the second spacing f is less than the minimum spacing d.

[0102] In some embodiments, the orthographic projection shapes of the first sub-pixel 11 and the second sub-pixel 12 on the display panel are both rectangular. The orthographic projection shape of the third sub-pixel 13 on the display panel is a pentagon, a straight line edge of the third sub-pixel 13 of the previous sub-unit 100 and a straight line edge of the third sub-pixel 13 of the next sub-unit 100 are adjacent, parallel and along the row direction M of the array, and the second spacing f is the spacing between the two straight lines.

[0103] In some embodiments, the arrangement of the pixel units 1 of the display panel, on the one hand, increases the light emitting area of ​​the third sub-pixel 13, thereby improving its light emitting efficiency; on the other hand, referring to Fig.11a and Fig.11b , the evaporation of the light-emitting functional layer of the third sub-pixel 13 of each sub-unit 100 in the same pixel unit 1 can be achieved through a larger opening on the mask plate, that is, when evaporating the light-emitting functional layer of the third sub-pixel 13 of each sub-unit 100 in the same pixel unit 1, the light-emitting functional layer of the third sub-pixel 13 in each sub-unit 100 can be simultaneously evaporated through a larger mask plate opening, thereby further reducing the process difficulty of mask plate production and mesh use for evaporating the light-emitting functional layer; at the same time, since the orthographic projection shape of the anode layer of the third sub-pixel on the display panel is the same as the orthographic projection shape of the third sub-pixel 13 on the display panel, the simultaneous evaporation of the light-emitting functional layers of multiple third sub-pixels 13 through a larger mask plate opening will not affect the shape of the light-emitting area of ​​the third sub-pixel when emitting light, thereby ensuring the precise control of the light-emitting efficiency of the third sub-pixel.

[0104] In some embodiments, reference Fig.11a and Fig.11b The outer contour of the opening on the mask for evaporating the light-emitting functional layer of the third sub-pixel 13 can be the same as the outer contour of the overall shape formed by splicing two or more third sub-pixels 13, or the outer contour of the opening on the mask for evaporating the light-emitting functional layer of the third sub-pixel 13 can be designed as a rectangle, which can further reduce the process difficulty of making the mask for evaporating the light-emitting functional layer and using the net. That is, in this embodiment, the multiple third openings 53 opened in the mask substrate 5 correspond one-to-one to all the third sub-pixels in each pixel unit 1.

[0105] In some embodiments, in adjacent sub-units 100 within the pixel unit 1 , the third sub-pixel 13 of the previous sub-unit 100 and the third sub-pixel 13 of the next sub-unit 100 are mirror-symmetric.

[0106] The other structures of the display panel in this embodiment are the same as those in the above embodiment and will not be described again here.

[0107] The present disclosure also provides a display panel, which is different from the above embodiments in that: Fig.12 , the pixel unit 1 includes a first sub-unit 104 and a second sub-unit 105, and the first sub-unit 104 and the second sub-unit 105 are arranged along the column direction L of the array; the first sub-unit 104 includes two first sub-pixels 11 and one third sub-pixel 13; the second sub-unit 105 includes two second sub-pixels 12 and one third sub-pixel 13; wherein, in the first sub-unit 104, the two first sub-pixels 11 are arranged along the column direction L of the array to form a first sub-column; the length direction of the third sub-pixel 13 is along the column direction L of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction M of the array; in the second sub-unit 105, the two second sub-pixels 12 are arranged along the column direction L of the array to form a third sub-column; the length direction of the third sub-pixel 13 is along the column direction L of the array to form a fourth sub-column; the third sub-column and the fourth sub-column are arranged along the row direction M of the array; the first sub-column and the third sub-column are located in the same column; the second sub-column and the fourth sub-column are located in the same column.

[0108] In some embodiments, the first sub-pixel 11 in the first sub-unit 104 and the second sub-pixel 12 in the second sub-unit 105 are spaced by a first spacing a; the first sub-pixel 11 in the first sub-unit 104 and the third sub-pixel 13 are spaced by a first spacing a; and the second sub-pixel 12 and the third sub-pixel 13 in the second sub-unit 105 are spaced by a first spacing a.

[0109] In some embodiments, the orthographic projection shapes of the first sub-pixel 11 and the second sub-pixel 12 on the display panel are both rectangular, and the orthographic projection shape of the third sub-pixel 13 on the display panel is a hexagon. The first spacing a between the first sub-pixel 11 in the first sub-unit 104 and the second sub-pixel 12 in the second sub-unit 105 is the spacing between the adjacent, parallel and straight lines of the first sub-pixel 11 and the second sub-pixel 12 along the row direction M of the array; the first spacing a between the first sub-pixel 11 and the third sub-pixel 13 in the first sub-unit 104 is the spacing between the adjacent, parallel and straight lines of the first sub-pixel 11 and the third sub-pixel 13 along the column direction L of the array; the first spacing a between the second sub-pixel 12 and the third sub-pixel 13 in the second sub-unit 105 is the spacing between the adjacent, parallel and straight lines of the second sub-pixel 12 and the third sub-pixel 13 along the column direction L of the array.

[0110] In some embodiments, two first sub-pixels 11 in the first sub-unit 104 are spaced apart by a third spacing i; two second sub-pixels 12 in the second sub-unit 105 are spaced apart by a fourth spacing k; and a third sub-pixel 13 in the first sub-unit 104 and a third sub-pixel 13 in the second sub-unit 105 are spaced apart by a fifth spacing g. The third spacing i between two first sub-pixels 11 in the first sub-unit 104 is the spacing between the adjacent, parallel, and straight-line sides of the two first sub-pixels 11 along the row direction M of the array. The fourth spacing k between two second sub-pixels 12 in the second sub-unit 105 is the spacing between the adjacent, parallel, and straight-line sides of the two second sub-pixels 12 along the row direction M of the array. The fifth spacing g between the third sub-pixel 13 in the first sub-unit 104 and the third sub-pixel 13 in the second sub-unit 105 is the spacing between the adjacent, parallel, and straight-line sides of the two third sub-pixels 13 along the row direction M of the array.

[0111] In some embodiments, the third spacing i, the fourth spacing k, and the fifth spacing g are respectively smaller than the minimum spacing d. In this way, on the one hand, the light-emitting area of ​​the first sub-pixel 11, the second sub-pixel 12, and the third sub-pixel 13 is increased, thereby improving their respective light-emitting efficiencies; on the other hand, referring to Fig.13a , Fig.13b and Fig.13c , the evaporation of the light-emitting functional layer of the first sub-pixel 11 of the first sub-unit 104 and the second sub-unit 105 in the same pixel unit 1 can be achieved through a larger opening on the mask plate; the evaporation of the light-emitting functional layer of the second sub-pixel 12 of the first sub-unit 104 and the second sub-unit 105 in the same pixel unit 1 can be achieved through a larger opening on the mask plate; the evaporation of the light-emitting functional layer of the third sub-pixel 13 of the first sub-unit 104 and the second sub-unit 105 in the same pixel unit 1 can be achieved through a larger opening on the mask plate, that is, when evaporating the light-emitting functional layer of the first sub-unit 104 and the second sub-unit 105 in the same pixel unit 1, the evaporation of the light-emitting functional layer of the third sub-pixel 13 can be achieved through a larger opening on the mask plate. When the light-emitting functional layer of each sub-pixel of the second sub-unit 105 is evaporated, the light-emitting functional layer of each sub-pixel can be simultaneously evaporated through a larger mask opening, thereby further reducing the difficulty of mask production and mesh use for evaporating the light-emitting functional layer; at the same time, since the orthographic projection shape of the anode layer of each sub-pixel on the display panel is the same as the orthographic projection shape of each sub-pixel on the display panel, the light-emitting functional layer of multiple sub-pixels of the same color is evaporated simultaneously through a larger mask opening and does not affect the shape of the light-emitting area of ​​each sub-pixel when emitting light, thereby ensuring precise control of the light-emitting efficiency of each sub-pixel.

[0112] In some embodiments, reference Figure 13a-Figure 13c, the outer contour of the opening on the mask plate for evaporating the light-emitting functional layer of the first sub-pixel 11 is the same as the outer contour of the overall shape formed by the splicing of the two first sub-pixels 11, such as the outer contour of the opening is a rectangle; the outer contour of the opening on the mask plate for evaporating the light-emitting functional layer of the second sub-pixel 12 is the same as the outer contour of the overall shape formed by the splicing of the two second sub-pixels 12, such as the outer contour of the opening is a rectangle; the outer contour of the opening on the mask plate for evaporating the light-emitting functional layer of the third sub-pixel 13 can be the same as the outer contour of the overall shape formed by the splicing of the two third sub-pixels 13, or the outer contour of the opening on the mask plate for evaporating the light-emitting functional layer of the third sub-pixel 13 can be designed to be a rectangle, which can further reduce the process difficulty of making the mask plate used for evaporating the light-emitting functional layer and using the net. That is, in this embodiment, the multiple first openings 51 opened in the mask plate substrate 5 correspond one-to-one to all the first sub-pixels in each pixel unit 1 (refer to Fig.13a ); the plurality of second openings 52 opened in the mask substrate 5 correspond one-to-one to all the second sub-pixels in each pixel unit 1 (refer to Fig.13b ); The plurality of third openings 53 opened in the mask substrate 5 correspond one-to-one to all the third sub-pixels in each pixel unit 1 (refer to Fig.13c ).

[0113] In some embodiments, the third spacing i, the fourth spacing k, and the fifth spacing g are respectively equal to the first spacing a. In this way, the first sub-pixel 11 and the third sub-pixel 13 in the first sub-unit 104 and the second sub-pixel 12 and the third sub-pixel 13 in the second sub-unit 105 in each pixel unit 1 can be evaporated separately.

[0114] In some embodiments, the two first sub-pixels 11 in the first sub-unit 104 are mirror-symmetrical; the two second sub-pixels 12 in the second sub-unit 105 are mirror-symmetrical; the third sub-pixel 13 in the first sub-unit 104 and the third sub-pixel 13 in the second sub-unit 105 are mirror-symmetrical.

[0115] In some embodiments, the pixel unit 1 includes a plurality of first sub-units 104 and a plurality of second sub-units 105 , and the first sub-units 104 and the second sub-units 105 are alternately arranged along a column direction L of the array.

[0116] The other structures of the display panel in this embodiment are the same as those in the above embodiment and will not be described again here.

[0117] The display panel provided in the above-mentioned embodiments, through the arrangement of pixel units in each embodiment, and by making adjacent third sub-pixels in adjacent pixel units have a minimum spacing and a maximum spacing along the column direction of the array; the second sub-pixel of the adjacent previous pixel unit and the first sub-pixel of the next pixel unit in adjacent pixel units are separated by a first spacing; the first spacing is greater than the minimum spacing and less than the maximum spacing, which can make the monochrome pure color picture (such as red / green picture) have better presentation, guaranteed visual resolution, good oblique line continuity, and can make the pixel unit display black and white dots, and can increase the opening area of ​​each sub-pixel in the pixel unit, thereby reducing the process difficulty of mask template production and mesh use used for evaporating the light-emitting functional layer.

[0118] An embodiment of the present disclosure further provides a display device, comprising the display panel in any of the above embodiments.

[0119] By adopting the display panel in any of the above embodiments, the display effect of the display device is improved, and the difficulty of manufacturing the display device is reduced.

[0120] The display device provided in the embodiments of the present disclosure may be any product or component with a display function, such as an OLED panel, an OLED TV, a monitor, a mobile phone, a navigator, or the like.

[0121] The disclosed embodiment also provides a mask, including a substrate; a plurality of first openings are provided in the substrate; or a plurality of second openings are provided in the substrate; or a plurality of third openings are provided in the substrate. The plurality of first openings correspond one-to-one to each first sub-pixel in each pixel unit; the plurality of second openings correspond one-to-one to each second sub-pixel in each pixel unit; and the plurality of third openings correspond one-to-one to each third sub-pixel in each pixel unit. Thus, the evaporation of the light-emitting functional layer in each of the first sub-pixel, the second sub-pixel, and the third sub-pixel is achieved respectively.

[0122] In some embodiments, the plurality of first openings correspond to all first sub-pixels in each pixel unit; the plurality of second openings correspond to all second sub-pixels in each pixel unit; and the plurality of third openings correspond to all third sub-pixels in each pixel unit. Thus, the evaporation of the light-emitting functional layer in each of the first sub-pixel, the second sub-pixel, and the third sub-pixel is achieved respectively, which can reduce the process difficulty of making the mask template and using the net for evaporating the light-emitting functional layer to a certain extent, and at the same time increase the opening area of ​​each sub-pixel in the pixel unit.

[0123] The mask provided in the embodiment of the present disclosure may be used for the evaporation of the light-emitting functional layer of each sub-pixel in the display panel of the above embodiment.

[0124] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display panel, comprising: A plurality of pixel units, wherein the plurality of pixel units are arranged in an array; The pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel have different luminous colors and their areas increase in sequence; Along the column direction of the array, in adjacent pixel units, the second sub-pixel of the previous pixel unit and the first sub-pixel of the next pixel unit are arranged adjacent to each other; and the third sub-pixels of adjacent pixel units are arranged in sequence; Characterized in that, along the column direction of the array, adjacent third sub-pixels in adjacent pixel units have a minimum spacing and a maximum spacing; and the second sub-pixel of the adjacent previous pixel unit and the first sub-pixel of the next pixel unit in adjacent pixel units are spaced by a first spacing; Along the column direction of the array, adjacent edges of adjacent third sub-pixels in adjacent pixel units are not parallel, the minimum spacing is the minimum spacing between adjacent edges of adjacent third sub-pixels in adjacent pixel units, and the maximum spacing is the maximum spacing between adjacent edges of adjacent third sub-pixels in adjacent pixel units; The first spacing is greater than the minimum spacing and less than the maximum spacing; The display panel further includes a plurality of supports, which are respectively arranged at the maximum spacing positions between adjacent third sub-pixels in adjacent pixel units along a column direction of the array, and the supports are spaced apart from the third sub-pixels.

2. The display panel according to claim 1, characterized in that: The pixel unit includes subunits; The sub-unit includes one of the first sub-pixel, one of the second sub-pixel and one of the third sub-pixel; Among them, the first sub-pixel and the second sub-pixel are arranged along the column direction of the array to form a first sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction of the array.

3. The display panel according to claim 2, characterized in that: The pixel unit includes one or more than two sub-units; More than two sub-units are arranged along the column direction of the array.

4. The display panel according to claim 3, characterized in that: In the sub-unit, the first sub-pixel and the second sub-pixel are spaced apart by the first spacing; the first sub-pixel and the third sub-pixel are spaced apart by the first spacing; and the second sub-pixel and the third sub-pixel are spaced apart by the first spacing.

5. The display panel according to claim 3, characterized in that: In adjacent sub-units within the pixel unit, the first sub-pixel of the previous sub-unit and the second sub-pixel of the next sub-unit are adjacent and are spaced apart by the first interval; The third sub-pixel of the previous sub-unit and the third sub-pixel of the next sub-unit are spaced apart by a second interval, and the second interval is smaller than the minimum interval.

6. The display panel according to claim 5, characterized in that: In adjacent sub-units within the pixel unit, the third sub-pixel of the previous sub-unit and the third sub-pixel of the next sub-unit are mirror-symmetrical.

7. The display panel according to claim 1, characterized in that: The pixel unit includes a first subunit and a second subunit, and the first subunit and the second subunit are arranged along the column direction of the array; The first sub-unit includes two of the first sub-pixels and one of the third sub-pixels; The second sub-unit includes two of the second sub-pixels and one of the third sub-pixels; Wherein, in the first sub-unit, two of the first sub-pixels are arranged along the column direction of the array to form a first sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a second sub-column; the first sub-column and the second sub-column are arranged along the row direction of the array; In the second sub-unit, two of the second sub-pixels are arranged along the column direction of the array to form a third sub-column; the length direction of the third sub-pixel is along the column direction of the array to form a fourth sub-column; the third sub-column and the fourth sub-column are arranged along the row direction of the array; The first sub-column and the third sub-column are located in the same column; the second sub-column and the fourth sub-column are located in the same column.

8. The display panel according to claim 7, characterized in that: The first sub-pixel in the first sub-unit and the second sub-pixel in the second sub-unit are spaced apart by the first spacing; The first sub-pixel and the third sub-pixel in the first sub-unit are spaced by the first spacing; The second sub-pixel and the third sub-pixel in the second sub-unit are spaced apart by the first interval.

9. The display panel according to claim 8, characterized in that: A third interval is provided between two of the first sub-pixels in the first sub-unit; Two of the second sub-pixels in the second sub-unit are spaced apart by a fourth interval; The third sub-pixel in the first sub-unit is spaced apart from the third sub-pixel in the second sub-unit by a fifth interval.

10. The display panel according to claim 9, characterized in that: The third interval, the fourth interval, and the fifth interval are respectively smaller than the minimum interval.

11. The display panel according to claim 9, characterized in that: The third interval, the fourth interval, and the fifth interval are respectively equal to the first interval.

12. The display panel according to claim 7, characterized in that: The two first sub-pixels in the first sub-unit are mirror-symmetrical; The two second sub-pixels in the second sub-unit are mirror-symmetrical; The third sub-pixel in the first sub-unit and the third sub-pixel in the second sub-unit are mirror-symmetrical.

13. The display panel according to claim 7, characterized in that: The pixel unit includes a plurality of first sub-units and a plurality of second sub-units, and the first sub-units and the second sub-units are alternately arranged along a column direction of the array.

14. The display panel according to claim 1, characterized in that: Adjacent third sub-pixels in adjacent pixel units are mirror-symmetrical.

15. The display panel according to claim 1, characterized in that: The orthographic projection shape of the first sub-pixel on the display panel includes a rectangle, a triangle, a diamond or a trapezoid; The orthographic projection shape of the second sub-pixel on the display panel includes a rectangle, a triangle, a rhombus or a trapezoid; The orthographic projection shape of the third sub-pixel on the display panel includes a rhombus, a triangle, a diamond, a trapezoid, a polygon or an irregular shape.

16. The display panel according to claim 1, characterized in that: The orthographic projection shape of the support on the display panel includes a rectangle, a circle, an ellipse, a triangle, a trapezoid, a regular polygon or an irregular shape.

17. The display panel according to claim 15, characterized in that: The first sub-pixel, the second sub-pixel and the third sub-pixel respectively include an anode layer, a light-emitting functional layer and a cathode layer stacked in sequence; The anode layers of the first sub-pixel, the second sub-pixel and the third sub-pixel are independent of each other, the light-emitting functional layers are independent of each other, and the cathode layers are connected as one; The orthographic projection shapes of the anode layers of the first sub-pixel, the second sub-pixel and the third sub-pixel on the display panel are respectively the same as the orthographic projection shapes of the sub-pixels to which they belong on the display panel.

18. A display device, characterized in that: A display panel comprising any one of claims 1-17.

19. A mask plate for preparing the display panel according to any one of claims 1 to 17, the mask plate comprising a substrate; The base body is provided with a plurality of first openings; Alternatively, a plurality of second openings are provided in the base body; Alternatively, a plurality of third openings are provided in the base body; It is characterized in that The plurality of first openings correspond one-to-one to each first sub-pixel in each pixel unit; or, the plurality of first openings correspond one-to-one to all first sub-pixels in each pixel unit; The plurality of second openings correspond one-to-one to each second sub-pixel in each pixel unit; or, the plurality of second openings correspond one-to-one to all second sub-pixels in each pixel unit; The plurality of third openings correspond one-to-one to each third sub-pixel in each pixel unit; or, the plurality of third openings correspond one-to-one to all third sub-pixels in each pixel unit.

Images