Pixel arrangement structure, display panel and display device

Abstract

The invention relates to a pixel arrangement structure, a display panel and a display device, the pixel arrangement structure comprises a plurality of pixel units, and each pixel unit comprises 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 are respectively used for emitting light with different colors; the peak wavelength of the second sub-pixel is located between the peak wavelength of the first sub-pixel and the peak wavelength of the third sub-pixel; a first peak wavelength interval is defined between the peak wavelength of the first sub-pixel and the peak wavelength of the second sub-pixel; a second peak wavelength interval is defined between the peak wavelength of the second sub-pixel and the peak wavelength of the third sub-pixel; each pixel unit further comprises a fourth sub-pixel; wherein the peak wavelength of the fourth sub-pixel is located in the first peak wavelength interval or the second peak wavelength interval; in this way, the display color gamut range can be widened, and therefore the display quality of the display panel can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a pixel arrangement structure, a display panel and a display device. Background Art

[0002] Micro LED, that is, the miniaturization and matrix technology of light-emitting diodes, has good stability, lifespan, and advantages in operating temperature. It also inherits the advantages of LED such as low power consumption, color saturation, fast response speed, and high contrast, and has great application prospects.

[0003] Micro LED displays made of microscopic light-emitting diodes are the mainstream development direction of display devices in the future; however, at present, Micro LED displays still have the problem of low display quality, which limits the development of Micro LED displays. Summary of the invention

[0004] Based on this, it is necessary to provide a pixel arrangement structure, a display panel and a display device to improve the display quality of the display panel.

[0005] In a first aspect, an embodiment of the present application provides a pixel arrangement structure, comprising a plurality of pixel units, wherein the pixel unit comprises 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 are respectively used to emit light of different colors; the peak wavelength of the second sub-pixel is between the peak wavelength of the first sub-pixel and the peak wavelength of the third sub-pixel; a first peak wavelength interval is defined between the peak wavelength of the first sub-pixel and the peak wavelength of the second sub-pixel; a second peak wavelength interval is defined between the peak wavelength of the second sub-pixel and the peak wavelength of the third sub-pixel; the pixel unit further comprises a fourth sub-pixel; wherein the peak wavelength of the fourth sub-pixel is located in the first peak wavelength interval or the second peak wavelength interval.

[0006] In a second aspect, an embodiment of the present application provides a display panel, comprising the pixel arrangement structure provided in the first aspect.

[0007] In a third aspect, an embodiment of the present application further provides a display device, which includes the display panel provided in the second aspect.

[0008] The pixel arrangement structure provided in the embodiment of the present application is such that the pixel unit includes a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, and the peak wavelength of the fourth sub-pixel is located in the first peak wavelength range or the second peak wavelength range. In this way, the number of sub-pixels of different colors in the pixel unit can be increased, and the display color gamut range of the display panel can be widened, thereby improving the display quality of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a color gamut diagram provided in an embodiment of the present application.

[0010] Figure 2 Another color gamut diagram provided in an embodiment of the present application.

[0011] Figure 3 A schematic diagram of a pixel arrangement structure provided in an embodiment of the present application.

[0012] Figure 4 for Figure 3 A schematic structural diagram of a pixel unit in a pixel arrangement structure shown.

[0013] Figure 5 A schematic structural diagram of a pixel arrangement structure provided in another embodiment of the present application.

[0014] Figure 6 for Figure 5 A schematic structural diagram of a pixel unit in a pixel arrangement structure shown.

[0015] Figure 7 A schematic structural diagram of a pixel arrangement structure provided in yet another embodiment of the present application.

[0016] Figure 8 A schematic structural diagram of a pixel arrangement structure provided in yet another embodiment of the present application.

[0017] Fig. 9 for Figure 8 A schematic structural diagram of a pixel unit in a pixel arrangement structure shown.

[0018] Fig.10 Another structural schematic diagram of a pixel arrangement structure provided in yet another embodiment of the present application.

[0019] Fig.11 for Fig.10 A schematic structural diagram of a pixel unit in a pixel arrangement structure shown.

[0020] Fig.12 A schematic diagram of the structure of a pixel circuit unit in a display panel provided in an embodiment of the present application.

[0021] Fig.13 A schematic diagram of the structure of any one of the first to fifth circuits in a pixel circuit unit in a display panel provided by an embodiment of the present application.

[0022] Fig.14 A schematic diagram of the arrangement structure of pixel circuit units in a display panel provided in an embodiment of the present application.

[0023] Fig.15 Another structural schematic diagram of a pixel circuit unit in a display panel provided in an embodiment of the present application.

[0024] Fig.16 A schematic diagram of the arrangement structure of pixel circuit units in a display panel provided in an embodiment of the present application.

[0025] Fig.17 A schematic structural diagram of a pixel circuit unit in a display panel provided in another embodiment of the present application.

[0026] Fig.18 Another structural schematic diagram of a pixel circuit unit in a display panel provided by another embodiment of the present application.

[0027] Fig.19 A schematic structural diagram of a pixel circuit unit in a display panel provided in yet another embodiment of the present application.

[0028] Fig. 20 Another structural schematic diagram of a pixel circuit unit in a display panel provided in yet another embodiment of the present application.

[0029] Fig.21 A schematic diagram of the arrangement structure of a pixel circuit unit in a display panel provided by another embodiment of the present application.

[0030] Fig. 22 A schematic diagram of the structure of a display device provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 10. display panel; 20. display device;

[0033] 11, pixel unit; 111, first sub-pixel; 112, second sub-pixel; 113, third sub-pixel; 114, fourth sub-pixel; 115, fifth sub-pixel;

[0034] 12. pixel circuit unit; 121. first circuit; 122. second circuit; 123. third circuit; 124. fourth circuit; 125. fifth circuit; 13. selection signal line; 14. data signal line; 15. pulse width module; 16. amplitude module;

[0035] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0039] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0040] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0041] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0042] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0043] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0044] Micro LED, i.e. miniaturization and matrix technology of light emitting diodes, has good stability, lifespan, and advantages in operating temperature. It also inherits the advantages of LED such as low power consumption, color saturation, fast response speed, and strong contrast, and has great application prospects. Micro LED displays made of micro LEDs are the mainstream development direction of display devices in the future; however, at present, the display quality of Micro LED displays is not high, which greatly limits the development of Micro LED displays.

[0045] Based on the above technical problems, the inventors have found that by making the pixel unit include a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, the number of sub-pixels of different colors in the pixel unit can be increased, the display color gamut of the display panel can be widened, and the display quality of the display panel can be improved. Based on this, the inventors further studied the technical solution of the embodiment of the present application. Specifically, the embodiment of the present application provides a pixel arrangement structure, including a plurality of pixel units, 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 are respectively used to emit light of different colors; the peak wavelength of the second sub-pixel is between the peak wavelength of the first sub-pixel and the peak wavelength of the third sub-pixel; the first peak wavelength interval is defined between the peak wavelength of the first sub-pixel and the peak wavelength of the second sub-pixel; the second peak wavelength interval is defined between the peak wavelength of the second sub-pixel and the peak wavelength of the third sub-pixel; the pixel unit also includes a fourth sub-pixel; wherein the peak wavelength of the fourth sub-pixel is located in the first peak wavelength interval or the second peak wavelength interval. By adopting the above technical solution, by making the pixel unit include a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, the peak wavelength of the fourth sub-pixel is located in the first peak wavelength range or the second peak wavelength range. In this way, the number of sub-pixels of different colors in the pixel unit can be increased, and the display color gamut range of the display panel can be widened, thereby improving the display quality of the display panel.

[0046] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be described clearly and completely below in conjunction with the drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] See also Figures 1 to 7As shown, an embodiment of the present application provides a pixel arrangement structure, including a plurality of pixel units 11, the pixel unit 11 includes a first sub-pixel 111, a second sub-pixel 112 and a third sub-pixel 113; the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 are respectively used to emit light of different colors; the peak wavelength of the second sub-pixel 112 is between the peak wavelength of the first sub-pixel 111 and the peak wavelength of the third sub-pixel 113; a first peak wavelength interval is defined between the peak wavelength of the first sub-pixel 111 and the peak wavelength of the second sub-pixel 112; a second peak wavelength interval is defined between the peak wavelength of the second sub-pixel 112 and the peak wavelength of the third sub-pixel 113; the pixel unit 11 also includes a fourth sub-pixel 114; wherein, the peak wavelength of the fourth sub-pixel 114 is located in the first peak wavelength interval or the second peak wavelength interval.

[0048] It can be understood that the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 correspond to one of the red sub-pixel, the blue sub-pixel, and the green sub-pixel, respectively; specifically, the first sub-pixel 111 can be a blue sub-pixel, the second sub-pixel 112 can be a green sub-pixel, and the third sub-pixel 113 can be a red sub-pixel. The peak wavelength of the fourth sub-pixel 114 is located in the first peak wavelength interval or the second peak wavelength interval, see Figure 1 and Figure 2 It can be seen that the fourth sub-pixel 114 can be a cyan sub-pixel or a yellow sub-pixel. In this way, the number of sub-pixels of different colors in a pixel unit 11 of the pixel arrangement structure can be increased, and the display color gamut range of a single pixel unit 11 can be widened, thereby expanding the display color gamut range of the display panel 10 and improving the display quality of the display panel 10.

[0049] The pixel arrangement structure provided in the embodiment of the present application is such that the pixel unit 11 includes a first sub-pixel 111, a second sub-pixel 112, a third sub-pixel 113 and a fourth sub-pixel 114, and the peak wavelength of the fourth sub-pixel 114 is located in the first peak wavelength range or the second peak wavelength range. In this way, the number of sub-pixels of different colors in the pixel unit 11 can be increased, and the display color gamut range of the display panel 10 can be broadened, thereby improving the display quality of the display panel 10.

[0050] In some alternative embodiments, see Figures 3 to 7 As shown, the number ratio of the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113 and the fourth sub-pixel 114 is 1:1:1:1.

[0051] In this way, the arrangement rule of the pixel arrangement structure can be optimized, which is beneficial to improving the uniformity of display brightness and thus beneficial to improving display quality.

[0052] In some alternative embodiments, see Figures 3 to 6As shown, the pixel unit 11 includes a first sub-pixel 111, a second sub-pixel 112, a third sub-pixel 113 and a fourth sub-pixel 114; in the same pixel unit 11, the lines connecting the centers of the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113 and the fourth sub-pixel 114 form a first virtual quadrilateral A.

[0053] In this way, the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113 and the fourth sub-pixel 114 can be reasonably arranged on the first virtual quadrilateral A. For example, the sub-pixels with relatively high human eye stimulation values ​​are staggered to avoid the problem of uneven brightness distribution in the pixel unit 11, which is beneficial to improve the display effect of the display panel 10 and improve the display quality of the display panel 10.

[0054] In some alternative embodiments, see Figure 4 , Figure 6 As shown, in the same pixel unit 11, the center line connecting the second sub-pixel 112 and the fourth sub-pixel 114 coincides with one diagonal line of the first virtual quadrilateral A, and the center line connecting the first sub-pixel 111 and the third sub-pixel 113 coincides with another diagonal line of the first virtual quadrilateral A.

[0055] Specifically, the brightness of the second sub-pixel 112 and the fourth sub-pixel 114 is greater than the brightness of the first sub-pixel 111, and the brightness of the second sub-pixel 112 and the fourth sub-pixel 114 is greater than the brightness of the third sub-pixel 113. For example, the first sub-pixel 111 is a blue sub-pixel, the second sub-pixel 112 is a green sub-pixel, the third sub-pixel 113 is a red sub-pixel, and the fourth sub-pixel 114 is a cyan sub-pixel or a yellow sub-pixel. In this way, the brightness of the second sub-pixel 112 and the fourth sub-pixel 114 has a large stimulation value for the human eye. If the second sub-pixel 112 and the fourth sub-pixel 114 are set on one side of the first virtual quadrilateral A, it will cause the pixel unit to have a problem of bright on one side and dark on the other side, that is, the problem of uneven brightness distribution. In the present embodiment, by aligning the center line of the second sub-pixel 112 and the fourth sub-pixel 114 with one diagonal of the first virtual quadrilateral A, and aligning the center line of the first sub-pixel 111 and the third sub-pixel 113 with another diagonal of the first virtual quadrilateral A, the second sub-pixel 112 and the fourth sub-pixel 114 can be avoided from being distributed on the same side of the first virtual sub-pixel A, which is beneficial to improving the brightness uniformity of the single pixel unit 11, thereby improving the brightness distribution uniformity of the pixel arrangement structure, and further improving the display brightness uniformity of the display panel 10, thereby improving the display effect of the display panel 10.

[0056] In some optional embodiments, the peak wavelength of the third sub-pixel 113 is greater than the peak wavelength of the second sub-pixel 112; the peak wavelength of the second sub-pixel 112 is greater than the peak wavelength of the first sub-pixel 111; the area of ​​the third sub-pixel 113 is greater than the area of ​​the first sub-pixel 111, and / or the area of ​​the third sub-pixel 113 is greater than the area of ​​the second sub-pixel 112; when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the first sub-pixel 111; when the peak wavelength of the fourth sub-pixel 114 is within the second peak wavelength interval, the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the third sub-pixel 113.

[0057] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the fourth sub-pixel 114 may be a cyan sub-pixel, and when the peak wavelength of the fourth sub-pixel 114 is within the second peak wavelength interval, the fourth sub-pixel 114 may be a yellow sub-pixel, wherein the luminous efficiency of the blue sub-pixel, cyan sub-pixel, green sub-pixel, yellow sub-pixel and red sub-pixel decreases in sequence, and in order to make the luminous brightness of each sub-pixel in the pixel unit tend to be consistent, the area of ​​the sub-pixel with low luminous efficiency needs to be larger than the area of ​​the sub-pixel with high luminous efficiency. In this embodiment, by making the area of ​​the third sub-pixel 113 larger than the area of ​​the first sub-pixel 111, and / or the area of ​​the third sub-pixel 113 larger than the area of ​​the second sub-pixel 112; when the peak wavelength of the fourth sub-pixel 114 is in the first peak wavelength interval, the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the first sub-pixel 111, and when the peak wavelength of the fourth sub-pixel 114 is in the second peak wavelength interval, the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the third sub-pixel 113; in this way, the luminous brightness of each sub-pixel in the pixel unit 11 can be made consistent, thereby improving the brightness uniformity of the pixel unit 11, thereby improving the brightness distribution uniformity of the pixel arrangement structure, and further improving the display brightness uniformity of the display panel 10, and improving the display effect of the display panel 10. In addition, the service life of each sub-pixel in the pixel unit 11 can be extended.

[0058] In a specific example, the area of ​​the first sub-pixel 111 and the area of ​​the second sub-pixel 112 may be equal or different, and may be set according to actual conditions.

[0059] In some optional embodiments, when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the driving current of the third sub-pixel 113 is greater than the driving current of the second sub-pixel 112, the driving current of the second sub-pixel 112 is greater than the driving current of the fourth sub-pixel 114, and the driving current of the fourth sub-pixel 114 is greater than the driving current of the first sub-pixel 111; when the peak wavelength of the fourth sub-pixel 114 is within the second peak wavelength interval, the driving current of the third sub-pixel 113 is greater than the driving current of the fourth sub-pixel 114, the driving current of the fourth sub-pixel 114 is greater than the driving current of the second sub-pixel 112, and the driving current of the second sub-pixel 112 is greater than the driving current of the first sub-pixel 111.

[0060] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the fourth sub-pixel 114 may be a cyan sub-pixel, and when the peak wavelength of the fourth sub-pixel 114 is within the second peak wavelength interval, the fourth sub-pixel 114 may be a yellow sub-pixel, wherein the luminous efficiency of the blue sub-pixel, cyan sub-pixel, green sub-pixel, yellow sub-pixel and red sub-pixel decreases in sequence, and in order to make the luminous brightness of each sub-pixel in the pixel unit tend to be consistent, the driving current of the sub-pixel with low luminous efficiency needs to be greater than the driving current of the sub-pixel with high luminous efficiency. In the present embodiment, when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the driving current of the third sub-pixel 113 is greater than the driving current of the second sub-pixel 112, the driving current of the second sub-pixel 112 is greater than the driving current of the fourth sub-pixel 114, and the driving current of the fourth sub-pixel 114 is greater than the driving current of the first sub-pixel 111; when the peak wavelength of the fourth sub-pixel 114 is within the second peak wavelength interval, the driving current of the third sub-pixel 113 is greater than the driving current of the fourth sub-pixel 114, the driving current of the fourth sub-pixel 114 is greater than the driving current of the second sub-pixel 112, and the driving current of the second sub-pixel 112 is greater than the driving current of the first sub-pixel 111. In this way, the luminous brightness of each sub-pixel in the pixel unit 11 can be made consistent, thereby improving the brightness uniformity of the pixel unit 11, thereby improving the brightness distribution uniformity of the pixel arrangement structure, and further improving the display brightness uniformity of the display panel 10, thereby improving the display effect of the display panel 10.

[0061] In some alternative embodiments, see Figures 8 to 11 As shown, the pixel unit 11 further includes a fifth sub-pixel 115; the peak wavelength of one of the fourth sub-pixel 114 and the fifth sub-pixel 115 is located in the first peak wavelength range; and the peak wavelength of the other sub-pixel is located in the second peak wavelength range.

[0062] In this way, the number of sub-pixels of different colors in the pixel unit 11 is increased, so that the pixel unit 11 includes sub-pixels of five colors, thereby widening the display color gamut of the display panel 10 and improving the display quality of the display panel 10 .

[0063] In some alternative embodiments, see Figure 8 , Fig. 9 As shown, the number ratio of the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113, the fourth sub-pixel 114 and the fifth sub-pixel 115 is 1:1:1:1:1.

[0064] In this way, the arrangement rule of the pixel arrangement structure can be optimized, which is beneficial to improving the uniformity of display brightness and thus beneficial to improving display quality.

[0065] In some alternative embodiments, see Figure 8 , Fig. 9 As shown, the pixel unit 11 includes a first sub-pixel 111, a second sub-pixel 112, a third sub-pixel 113, a fourth sub-pixel 114 and a fifth sub-pixel 115; in the same pixel unit 11; the lines connecting the centers of the first sub-pixel 111, the third sub-pixel 113, the fourth sub-pixel 114 and the fifth sub-pixel 115 form a second virtual quadrilateral B; the second sub-pixel 112 is located in the second virtual quadrilateral B.

[0066] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; the fourth sub-pixel 114 and the fifth sub-pixel 115 may be one of a cyan sub-pixel and a yellow sub-pixel respectively; the green sub-pixel, the cyan sub-pixel and the yellow sub-pixel have high stimulation values ​​for the human eye. If the arrangement of the sub-pixels of the pixel unit is unreasonable, the problem of uneven brightness of the pixel unit is likely to occur. In this embodiment, by connecting the centers of the first sub-pixel 111, the third sub-pixel 113, the fourth sub-pixel 114 and the fifth sub-pixel 115 in the same pixel unit 11 to form a second virtual quadrilateral B, the second sub-pixel 112 is located in the second virtual quadrilateral B, so that it is convenient to stagger the sub-pixels with higher stimulation values ​​for the human eye, or to keep a certain distance between the sub-pixels with higher stimulation values ​​for the human eye, so as to avoid the problem of uneven brightness distribution in the pixel unit 11, thereby improving the display effect of the display panel 10 and improving the display quality of the display panel 10.

[0067] In some alternative embodiments, see Figure 3 , Figure 5 , Figure 7 , Figure 8 As shown, the plurality of pixel units 11 are arranged in rows along a first direction X, and are arranged in columns along a second direction Y intersecting the first direction X.

[0068] In this way, the pixel arrangement can be made more uniform, which is beneficial to improving the display effect.

[0069] In some alternative embodiments, see Fig.10 , Fig.11 As shown, the number ratio of the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113, the fourth sub-pixel 114 and the fifth sub-pixel 115 is 1:2:1:1:1.

[0070] In this way, a pixel borrowing relationship can exist between adjacent pixel units 11, such as Fig.10 As shown, there is a pixel borrowing relationship between adjacent pixel units 11 in the second direction Y. In this way, a higher aperture ratio and pixel density PPI can be achieved through the pixel borrowing relationship, a more delicate display effect can be achieved, and the display life can be improved.

[0071] In some alternative embodiments, see Fig.10 , Fig.11 As shown, the pixel unit 11 includes a first sub-pixel 111, two second sub-pixels 112, a third sub-pixel 113, a fourth sub-pixel 114 and a fifth sub-pixel 115; in the same pixel unit 11; the line connecting the centers of the first sub-pixel 111, the third sub-pixel 113, the fourth sub-pixel 114 and the fifth sub-pixel 115 forms a second virtual quadrilateral B; a second sub-pixel 112 is located inside the second virtual quadrilateral B, a second sub-pixel 112 is located outside the second virtual quadrilateral B, and the line connecting the centers of the two second sub-pixels 112 is parallel to one side of the second virtual quadrilateral B.

[0072] In this way, a pixel borrowing relationship may exist between two adjacent pixel units 11, for example, Fig.10 As shown, in two adjacent pixel units 11 in the second direction Y, the first sub-pixel 111, the fourth sub-pixel 114 and the second sub-pixel 112 located outside the second virtual quadrilateral B in one pixel unit 11 can be used together with the third sub-pixel 113, the fifth sub-pixel 115 and the second sub-pixel 112 located within the second virtual quadrilateral B in another pixel unit 11 to form a pixel unit. In this way, the aperture ratio and the pixel density PPI can be effectively improved, thereby improving the display effect.

[0073] In some alternative embodiments, see Figures 8 to 11 As shown, in the same pixel unit 11, the center line connecting the first sub-pixel 111 and the third sub-pixel 113 coincides with one diagonal line of the second virtual quadrilateral B; the center line connecting the fourth sub-pixel 114 and the fifth sub-pixel 115 coincides with another diagonal line of the second virtual quadrilateral B.

[0074] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; the fourth sub-pixel 114 and the fifth sub-pixel 115 may be one of a cyan sub-pixel and a yellow sub-pixel respectively; the green sub-pixel, the cyan sub-pixel and the yellow sub-pixel have a higher stimulation value for the human eye. In this embodiment, by making the center connection line of the first sub-pixel 111 and the third sub-pixel 113 in the same pixel unit 11 coincide with one diagonal of the second virtual quadrilateral B; the center connection line of the fourth sub-pixel 114 and the fifth sub-pixel 115 coincide with another diagonal of the second virtual quadrilateral B, in this way, the fourth sub-pixel 114 and the fifth sub-pixel 115 can be avoided from being distributed on the same side of the second virtual quadrilateral B, so that the second sub-pixel 112, the fourth sub-pixel 114 and the fifth sub-pixel 115 are kept at a relatively long distance, thereby improving the brightness distribution uniformity of the pixel arrangement structure, thereby improving the display effect of the display panel 10, and improving the display quality of the display panel 10.

[0075] In some alternative embodiments, see Figures 8 to 11 As shown, in the same pixel unit 11 , the center of the second virtual quadrilateral B coincides with the center of the second sub-pixel 112 located in the second virtual quadrilateral B.

[0076] In this way, the brightness distribution uniformity of the pixel arrangement structure can be further improved, thereby further improving the display effect of the display panel 10 and improving the display quality of the display panel 10 .

[0077] In some alternative embodiments, see Fig.10 As shown, a plurality of pixel units 11 are arranged in rows along a first direction X, and in columns along a second direction Y intersecting the first direction X; along the second direction Y, a second sub-pixel 112 located outside the second virtual quadrilateral B is located between two adjacent second virtual quadrilaterals B; along the first direction X, two adjacent second virtual quadrilaterals B are staggered, wherein the center of one second virtual quadrilateral B is located on the extension line of the edge of the other second virtual quadrilateral in the first direction X.

[0078] In this way, in two adjacent pixel units 11 in the second direction Y, the first sub-pixel 111, the fourth sub-pixel 114 and the second sub-pixel 112 located outside the second virtual quadrilateral B in one pixel unit 11 can be borrowed from the third sub-pixel 113, the fifth sub-pixel 115 and the second sub-pixel 112 located within the second virtual quadrilateral B in the other pixel unit 11 to form a pixel unit 11. In this way, the aperture ratio and the pixel density PPI can be effectively improved, thereby improving the display effect; in addition, in two adjacent pixel units along the first direction X, the second sub-pixel 112 located within the second virtual quadrilateral in one pixel unit 11 can be arranged in the same row as the third sub-pixel 113 and the fifth sub-pixel 115 in the other pixel unit 11. In this way, the compactness of the sub-pixel arrangement can be improved, which is beneficial to improving the display effect.

[0079] In some optional embodiments, the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength range; the peak wavelength of the fifth sub-pixel 115 is within the second peak wavelength range; the peak wavelength of the third sub-pixel 113 is greater than the peak wavelength of the second sub-pixel 112; the peak wavelength of the second sub-pixel 112 is greater than the peak wavelength of the first sub-pixel 111; the area of ​​the third sub-pixel 113 is greater than the area of ​​the first sub-pixel 111, and / or the area of ​​the third sub-pixel 113 is greater than the area of ​​the second sub-pixel 112; the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the first sub-pixel 111; and the area of ​​the fifth sub-pixel 115 is equal to the area of ​​the third sub-pixel 113.

[0080] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the fourth sub-pixel 114 may be a cyan sub-pixel, and when the peak wavelength of the fifth sub-pixel 115 is within the second peak wavelength interval, the fifth sub-pixel 115 may be a yellow sub-pixel, wherein the luminous efficiency of the blue sub-pixel, cyan sub-pixel, green sub-pixel, yellow sub-pixel and red sub-pixel decreases in sequence. In order to make the luminous brightness of each sub-pixel in the pixel unit 11 tend to be consistent, the area of ​​the sub-pixel with low luminous efficiency needs to be larger than the area of ​​the sub-pixel with high luminous efficiency. In this embodiment, by making the area of ​​the third sub-pixel 113 larger than the area of ​​the first sub-pixel 111, and / or the area of ​​the third sub-pixel 113 larger than the area of ​​the second sub-pixel 112; the area of ​​the fourth sub-pixel 114 is equal to the area of ​​the first sub-pixel 111; the area of ​​the fifth sub-pixel 115 is equal to the area of ​​the third sub-pixel 113, the luminous brightness of each sub-pixel in the pixel unit 11 can be made consistent, the brightness uniformity of the single pixel unit 11 can be improved, and the brightness distribution uniformity of the pixel arrangement structure can be improved, and then the display brightness uniformity of the display panel 10 can be improved, and the display effect of the display panel 10 can be improved. In addition, the service life of each sub-pixel in the pixel unit 11 can be extended.

[0081] In some optional embodiments, the driving current of the third sub-pixel 113 is greater than the driving current of the fifth sub-pixel 115; the driving current of the fifth sub-pixel 115 is greater than the driving current of the second sub-pixel 114; the driving current of the second sub-pixel 114 is greater than the driving current of the fourth sub-pixel 112; and the driving current of the fourth sub-pixel 112 is greater than the driving current of the first sub-pixel 111.

[0082] Specifically, the third sub-pixel 113 may be a red sub-pixel, the second sub-pixel 112 may be a green sub-pixel, and the first sub-pixel 111 may be a blue sub-pixel; when the peak wavelength of the fourth sub-pixel 114 is within the first peak wavelength interval, the fourth sub-pixel 114 may be a cyan sub-pixel, and when the peak wavelength of the fifth sub-pixel 115 is within the second peak wavelength interval, the fifth sub-pixel 115 may be a yellow sub-pixel, wherein the luminous efficiency of the blue sub-pixel, cyan sub-pixel, green sub-pixel, yellow sub-pixel and red sub-pixel decreases in sequence, and in order to make the luminous brightness of each sub-pixel in the pixel unit tend to be consistent, the driving current of the sub-pixel with low luminous efficiency needs to be greater than the driving current of the sub-pixel with high luminous efficiency. In the present embodiment, by making the driving current of the third sub-pixel 113 greater than the driving current of the fifth sub-pixel 115; the driving current of the fifth sub-pixel 115 greater than the driving current of the second sub-pixel 114; the driving current of the second sub-pixel 114 greater than the driving current of the fourth sub-pixel 112; the driving current of the fourth sub-pixel 112 greater than the driving current of the first sub-pixel 111, the luminous brightness of each sub-pixel of the pixel unit 11 can be made consistent, thereby improving the brightness uniformity of the pixel unit 11, thereby improving the brightness distribution uniformity of the pixel arrangement structure, and further improving the display brightness uniformity of the display panel 10, thereby improving the display effect of the display panel 10.

[0083] In some optional embodiments, the peak wavelength of the first sub-pixel 111 is 450nm~480nm; the peak wavelength of the second sub-pixel 112 is 520nm~550nm; the peak wavelength of the third sub-pixel 113 is 600nm~700nm; the first peak wavelength range is 480nm~520nm; the second peak wavelength range is 550nm~600nm.

[0084] Based on the same application concept, see Figures 1 to 11 , Fig. 22 As shown, the embodiment of the present application further provides a display panel 10, including the pixel arrangement structure provided by any of the above embodiments. In this way, the display effect of the display panel 10 can be improved, and the display quality of the display panel 10 can be improved.

[0085] In some alternative embodiments, see Fig.12As shown, the display panel 10 also includes a pixel circuit unit 12, a selection signal line 13 and a data signal line 14; the pixel circuit unit 12 includes a first circuit 121 electrically connected to the first sub-pixel 111, a second circuit 122 electrically connected to the second sub-pixel 112, a third circuit 123 electrically connected to the third sub-pixel 113 and a fourth circuit 124 electrically connected to the fourth sub-pixel 114; in the same pixel circuit unit 12, at least part of the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are electrically connected to the same selection signal line 13; at least part of the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are electrically connected to the same data signal line 14.

[0086] That is to say, at least part of the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are arranged along the same selection signal line 13, which can reduce the number of rows of the selection signal line 13, thereby reducing the number of rows of pixel circuit units 12. In this way, the pixel circuit unit 12 has more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0087] It can be understood that the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113, and the fourth sub-pixel 114 all include light-emitting diodes, and the first circuit 121, the second circuit 122, the third circuit 123, and the fourth circuit 124 are all pixel circuits, which are respectively used to drive the first sub-pixel 111, the second sub-pixel 112, the third sub-pixel 113, and the fourth sub-pixel 114 to emit light.

[0088] Optional, Fig.13 A schematic diagram of a circuit structure of a pixel circuit is shown. Fig.13As shown, the pixel circuit may include a pulse width module 15 controlled by PWM (Pulse Width Modulation) and an amplitude module 16 controlled by PAM (Pulse Amplitude Modulation) so that the luminous efficiency and viewing angle color deviation of the driven light-emitting diode can reach the best state. Among them, the pulse width module 15 in the pixel circuit may include 6 thin film transistors (T1-T6) and a capacitor (C1), receiving scanning signals WS1 and WS2, data signal Vdata1, light control signal Emit1, reference signal Vref1, turn-off voltage Voff and pulse width control voltage Sweep, and is used to control the light-emitting duration of the light-emitting diode; the amplitude module 16 in the pixel circuit may include 6 thin film transistors (T7-T12) and a capacitor (C2), receiving scanning signals AS1 and AS2, data signal Vdata2, light control signal Emit2, reference signal Vref2, first power supply voltage VPVDD and second power supply voltage VPVEE, and is used to control the light-emitting intensity of the light-emitting diode. The connection mode and access signal of each thin film transistor in the pixel circuit are as shown in FIG. Fig.13 The strobe signal line 13 may be a scanning signal line for transmitting a scanning signal, or a light-emitting control signal line for transmitting a light-emitting control signal.

[0089] It should be noted that Fig.13 The pixel circuit shown is only one type of pixel circuit in the display panel 10. In practical applications, the implementation method of the pixel circuit can be selected based on the requirements and is not limited to Fig.13 The circuit structure shown.

[0090] In some alternative embodiments, see Fig.14 As shown, the display panel 10 includes a plurality of pixel circuit units 12, a plurality of data signal lines 14 and a plurality of selection signal lines 13. The plurality of pixel circuit units 12 are arranged in rows along a first direction X and in columns along a second direction Y intersecting the first direction X; the plurality of selection signal lines 13 extend along the first direction X and are arranged at intervals along the second direction Y; all pixel circuit units 12 located in the same row are electrically connected to at least one selection signal line 13; the plurality of data signal lines 14 extend along the second direction Y and are arranged at intervals along the first direction X; all pixel single-channel units located in the same column are electrically connected to at least one data signal line 14.

[0091] In this way, the number of rows of pixel circuit units 12 can be reduced, so that the pixel circuit units 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving display quality.

[0092] In some alternative embodiments, see Figure 7As shown, a plurality of pixel units 11 are arranged in rows along a first direction X, and in columns along a second direction Y intersecting the first direction X. An extension direction of the selection signal line 13 is not parallel to the first direction X, and is not parallel to the second direction Y. An extension direction of the second data signal line 14 is not parallel to the first direction X, and is not parallel to the second direction Y.

[0093] The display panel 10 may be a rectangular structure, and the display panel 10 has a length direction and a width direction; the extension direction of the selection signal line 13 and the extension direction of the second data signal line 14 may be the length direction and the width direction of the display panel 10 respectively, the extension direction of the selection signal line 13 is not parallel to the first direction X, and is not parallel to the second direction Y, the extension direction of the second data signal line 14 is not parallel to the first direction X, and is not parallel to the second direction Y, that is, the first direction X is at an angle to the length direction of the display panel 10 and the width direction of the display panel 10, the second direction Y intersects with the first direction X, and the second direction Y is at an angle to the length direction of the display panel 10 and the width direction of the display panel 10, so that when the plurality of pixel units 11 are arranged in rows along the first direction X and in columns along the second direction Y, it is equivalent to that the plurality of pixel units are arranged in rows and columns along the oblique direction of the display panel 10, so that the linearity of the oblique display can be improved, and the sawtooth feeling when displaying the oblique line can be improved, thereby improving the display effect of the display panel 10.

[0094] In some alternative embodiments, see Figure 15 to Figure 16 , Fig.18 As shown, the display panel 10 also includes a pixel circuit unit 12, a selection signal line 13 and a data signal line 14; the pixel circuit unit 12 includes a first circuit 121 electrically connected to the first sub-pixel 111, a second circuit 122 electrically connected to the second sub-pixel 112, a third circuit 123 electrically connected to the third sub-pixel 113 and a fourth circuit 124 electrically connected to the fourth sub-pixel 114; in the same pixel circuit unit 12, the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are arranged along the first direction X; the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are electrically connected to the same selection signal line 13; the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are electrically connected to four different data signal lines 14 one by one.

[0095] In this way, since in the same pixel circuit unit 12, the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are arranged along the first direction X; the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 are electrically connected to the same selection signal line 13, thus, the number of rows of the selection signal line 13 can be reduced, thereby reducing the number of rows of the pixel circuit unit 12, so that the pixel circuit unit 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0096] In some alternative embodiments, see Fig.16 As shown, all pixel circuit units 12 in the same row are electrically connected to the same gate signal line 13 ; all pixel circuit units 12 in the same column are electrically connected to four different data signal lines 14 .

[0097] In this way, since all the pixel circuit units 12 in the same row are electrically connected to the same selection signal line 13, the number of rows of the selection signal lines 13 can be reduced, thereby reducing the number of rows of pixel circuit units 12, so that the pixel circuit units 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0098] In some alternative embodiments, see Fig.12 , Fig.14 , Fig.17 As shown, in the same pixel circuit unit 12, the connection lines of the centers of the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 form a third virtual quadrilateral C; the pixel circuit unit 12 is electrically connected to two adjacent selection signal lines 13, and the pixel circuit unit 12 is electrically connected to two adjacent data signal lines 14; wherein, among the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124, two arranged along the first direction X are electrically connected to one selection signal line 13; and two arranged along the second direction Y are electrically connected to one data signal line 14.

[0099] Thus, compared with the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124 being respectively connected to one selection signal line 13, in the present embodiment, by making the first circuit 121, the second circuit 122, the third circuit 123 and the fourth circuit 124, two of which are arranged along the first direction X are electrically connected to one selection signal line 13, the number of rows of the selection signal lines 13 can be reduced, thereby reducing the number of rows of the pixel circuit units 12, so that the pixel circuit units 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0100] In some alternative embodiments, see Fig.14As shown, all pixel circuit units 12 in the same row are electrically connected to two adjacent selection signal lines 13 ; and all pixel circuit units 12 in the same column are electrically connected to two adjacent data signal lines 14 .

[0101] In some alternative embodiments, see Figure 8 , Fig.10 , Fig.19 As shown, the pixel unit 11 also includes a fifth sub-pixel 115, and the pixel circuit unit 12 also includes a fifth circuit 125 electrically connected to the fifth sub-pixel 115; in the same pixel circuit unit 12, at least part of the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are electrically connected to the same selection signal line 13; at least part of the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are electrically connected to the same data signal line 14.

[0102] In this way, the light emission of the first to fifth sub-pixels 115 in the pixel unit 11 can be conveniently controlled, thereby widening the display color gamut range of the display panel 10, improving the display effect of the display panel 10, and improving the display quality of the display panel 10; in addition, at least part of the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are arranged along the same selection signal line 13, which can reduce the number of rows of the selection signal line 13, thereby reducing the number of rows of the pixel circuit unit 12, so that the pixel circuit unit 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0103] In some alternative embodiments, see Fig.19 As shown, in the same pixel circuit unit 12, the connection lines of the centers of the first circuit 121, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 form a fourth virtual quadrilateral D; the second circuit 122 is located in the fourth virtual quadrilateral D; the pixel circuit unit 12 is electrically connected to three adjacent selection signal lines 13, and the pixel circuit unit 12 is electrically connected to three adjacent data signal lines 14; wherein, among the first circuit 121, the third circuit 123, the fourth circuit 124 and the fifth circuit 125, two arranged along the first direction X are electrically connected to one selection signal line 13; two arranged along the second direction Y are electrically connected to one data signal line 14; the second circuit 122 is electrically connected to one selection signal line 13; and the second circuit 122 is electrically connected to one data signal line 14.

[0104] Thus, compared with the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 being respectively connected to one strobe signal line 13, in this embodiment, by making the first circuit 121, the third circuit 123, the fourth circuit 124 and the fifth circuit 125, the two arranged along the first direction X are electrically connected to one strobe signal line 13; the second circuit 122 is electrically connected to one strobe signal line 13, so that the number of rows of the strobe signal lines 13 can be reduced, thereby reducing the number of rows of the pixel circuit unit 12, so that the pixel circuit unit 12 can have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality. In addition, by making the first circuit 121, the third circuit 123, the fourth circuit 124 and the fifth circuit 125, the two arranged along the second direction Y are electrically connected to one data signal line 14, and the second circuit 122 is electrically connected to one data signal line 14, so that the number of data signal lines 14 can be reduced, thereby reducing the cost.

[0105] In some alternative embodiments, see Fig. 20 and Fig.21 As shown, the display panel 10 further includes a pixel circuit unit 12, a gate signal line 13 and a data signal line 14; the pixel circuit unit 12 includes a first circuit 121 electrically connected to the first sub-pixel 111, a second circuit 122 electrically connected to the second sub-pixel 112, a third circuit 123 electrically connected to the third sub-pixel 113, a fourth circuit 124 electrically connected to the fourth sub-pixel 114 and a fifth circuit 125 electrically connected to the fifth sub-pixel 115; the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are arranged at intervals along the first direction X; the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are electrically connected to the same gate signal line 13; the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 are electrically connected to five different data signal lines 14 one by one.

[0106] In this way, by electrically connecting the first circuit 121, the second circuit 122, the third circuit 123, the fourth circuit 124 and the fifth circuit 125 to the same selection signal line 13, the number of rows of the selection signal lines 13 can be reduced, thereby reducing the number of rows of pixel circuit units 12, so that the pixel circuit units 12 have more time to perform compensation operations on each row of pixel units 11, thereby improving the display quality.

[0107] In some alternative embodiments, see Fig.21As shown, all the pixel circuit units 12 in the same row are electrically connected to the same selection signal line 13 ; and all the pixel circuit units 12 in the same column are electrically connected to five different data signal lines 14 .

[0108] In this way, the number of rows of pixel circuit units 12 can be reduced, so that the pixel circuit units 12 have more time to perform compensation operations on each row of pixel units 11, thereby improving display quality.

[0109] Based on the same application concept, see Fig. 22 As shown, the embodiment of the present application further provides a display device 20, including the display panel 10 described in any of the above embodiments. Therefore, the display device 20 also has the beneficial effects of the display panel 10 in the above embodiments, and the similarities can be understood by referring to the above explanation of the display module, which will not be repeated below.

[0110] The display device 20 provided in the embodiment of the present application can be Fig. 22 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, industrial control equipment, medical display screens, touch interactive terminals, etc. The embodiments of the present application do not specifically limit this.

[0111] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A pixel arrangement structure, characterized in that: The invention comprises a plurality of pixel units, wherein the pixel unit comprises 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 are respectively used to emit light of different colors; the peak wavelength of the second sub-pixel is between the peak wavelength of the first sub-pixel and the peak wavelength of the third sub-pixel; a first peak wavelength interval is defined between the peak wavelength of the first sub-pixel and the peak wavelength of the second sub-pixel; a second peak wavelength interval is defined between the peak wavelength of the second sub-pixel and the peak wavelength of the third sub-pixel; The pixel unit further includes a fourth sub-pixel; wherein the peak wavelength of the fourth sub-pixel is located in the first peak wavelength interval or the second peak wavelength interval.

2. The pixel arrangement structure according to claim 1, characterized in that: The number ratio of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel is 1:1:1:

1.

3. The pixel arrangement structure according to claim 2, characterized in that: The pixel unit includes one first sub-pixel, one second sub-pixel, one third sub-pixel and one fourth sub-pixel; In the same pixel unit, the lines connecting the center of the first sub-pixel, the center of the second sub-pixel, the center of the third sub-pixel and the center of the fourth sub-pixel form a first virtual quadrilateral.

4. The pixel arrangement structure according to claim 3, characterized in that: In the same pixel unit, a line connecting the centers of the second sub-pixel and the fourth sub-pixel coincides with one diagonal line of the first virtual quadrilateral, and a line connecting the centers of the first sub-pixel and the third sub-pixel coincides with another diagonal line of the first virtual quadrilateral.

5. The pixel arrangement structure according to claim 1, characterized in that: The peak wavelength of the third sub-pixel is greater than the peak wavelength of the second sub-pixel; the peak wavelength of the second sub-pixel is greater than the peak wavelength of the first sub-pixel; The area of ​​the third sub-pixel is greater than the area of ​​the first sub-pixel, and / or the area of ​​the third sub-pixel is greater than the area of ​​the second sub-pixel; When the peak wavelength of the fourth sub-pixel is within the first peak wavelength interval, the area of ​​the fourth sub-pixel is equal to the area of ​​the first sub-pixel; When the peak wavelength of the fourth sub-pixel is within the second peak wavelength range, the area of ​​the fourth sub-pixel is equal to the area of ​​the third sub-pixel.

6. The pixel arrangement structure according to claim 5, characterized in that: When the peak wavelength of the fourth sub-pixel is within the first peak wavelength interval, the driving current of the third sub-pixel is greater than the driving current of the second sub-pixel, the driving current of the second sub-pixel is greater than the driving current of the fourth sub-pixel, and the driving current of the fourth sub-pixel is greater than the driving current of the first sub-pixel; When the peak wavelength of the fourth sub-pixel is within the second peak wavelength range, the driving current of the third sub-pixel is greater than the driving current of the fourth sub-pixel, the driving current of the fourth sub-pixel is greater than the driving current of the second sub-pixel, and the driving current of the second sub-pixel is greater than the driving current of the first sub-pixel.

7. The pixel arrangement structure according to claim 1, characterized in that: The pixel unit further includes a fifth sub-pixel; a peak wavelength of one of the fourth sub-pixel and the fifth sub-pixel is located in a first peak wavelength range; and a peak wavelength of the other sub-pixel is located in the second peak wavelength range.

8. The pixel arrangement structure according to claim 7, characterized in that: A ratio of the number of the first sub-pixel, the second sub-pixel, the third sub-pixel, the fourth sub-pixel, and the fifth sub-pixel is 1:1:1:1:

1.

9. The pixel arrangement structure according to claim 8, characterized in that: The pixel unit includes one first sub-pixel, one second sub-pixel, one third sub-pixel, one fourth sub-pixel and one fifth sub-pixel; In the same pixel unit, a line connecting the centers of the first sub-pixel, the third sub-pixel, the fourth sub-pixel and the fifth sub-pixel forms a second virtual quadrilateral; and the second sub-pixel is located in the second virtual quadrilateral.

10. The pixel arrangement structure according to claim 3 or 9, characterized in that: The plurality of pixel units are arranged in rows along a first direction, and in columns along a second direction intersecting the first direction.

11. The pixel arrangement structure according to claim 7, characterized in that: A ratio of the number of the first sub-pixel, the second sub-pixel, the third sub-pixel, the fourth sub-pixel, and the fifth sub-pixel is 1:2:1:1:

1.

12. The pixel arrangement structure according to claim 11, characterized in that: The pixel unit includes one first sub-pixel, two second sub-pixels, one third sub-pixel, one fourth sub-pixel and one fifth sub-pixel; In the same pixel unit, a line connecting the centers of one first sub-pixel, one third sub-pixel, one fourth sub-pixel and one fifth sub-pixel forms a second virtual quadrilateral; one second sub-pixel is located inside the second virtual quadrilateral, one second sub-pixel is located outside the second virtual quadrilateral, and a line connecting the centers of two second sub-pixels is parallel to one side of the second virtual quadrilateral.

13. The pixel arrangement structure according to claim 9 or 12, characterized in that: In the same pixel unit, a line connecting the centers of the first sub-pixel and the third sub-pixel coincides with a diagonal line of the second virtual quadrilateral; a line connecting the centers of the fourth sub-pixel and the fifth sub-pixel coincides with another diagonal line of the second virtual quadrilateral.

14. The pixel arrangement structure according to claim 9 or 12, characterized in that: In the same pixel unit, the center of the second virtual quadrilateral coincides with the center of the second sub-pixel located in the second virtual quadrilateral.

15. The pixel arrangement structure according to claim 12, characterized in that: The plurality of pixel units are arranged in rows along a first direction, and arranged in columns along a second direction intersecting the first direction; Along the second direction, the second sub-pixel located outside the second virtual quadrilateral is located between two adjacent second virtual quadrilaterals; Along the first direction, two adjacent second virtual quadrilaterals are staggered, and the center of one of the second virtual quadrilaterals is located on the extension line of the edge of the other second virtual quadrilateral in the first direction.

16. The pixel arrangement structure according to claim 7, characterized in that: The peak wavelength of the fourth sub-pixel is within the first peak wavelength range; the peak wavelength of the fifth sub-pixel is within the second peak wavelength range; The peak wavelength of the third sub-pixel is greater than the peak wavelength of the second sub-pixel; the peak wavelength of the second sub-pixel is greater than the peak wavelength of the first sub-pixel; The area of ​​the third sub-pixel is greater than the area of ​​the first sub-pixel, and / or the area of ​​the third sub-pixel is greater than the area of ​​the second sub-pixel; The area of ​​the fourth sub-pixel is equal to the area of ​​the first sub-pixel; the area of ​​the fifth sub-pixel is equal to the area of ​​the third sub-pixel.

17. The pixel arrangement structure according to claim 16, characterized in that: The driving current of the third sub-pixel is greater than the driving current of the fifth sub-pixel; the driving current of the fifth sub-pixel is greater than the driving current of the second sub-pixel; the driving current of the second sub-pixel is greater than the driving current of the fourth sub-pixel; the driving current of the fourth sub-pixel is greater than the driving current of the first sub-pixel.

18. The pixel arrangement structure according to claim 5 or 16, characterized in that: The peak wavelength of the first sub-pixel is 450nm~480nm; the peak wavelength of the second sub-pixel is 520nm~550nm; the peak wavelength of the third sub-pixel is 600nm~700nm; the first peak wavelength range is 480nm~520nm; the second peak wavelength range is 550nm~600nm.

19. A display panel, characterized in that: The invention comprises the pixel arrangement structure as described in any one of claims 1 to 18.

20. The display panel according to claim 19, characterized in that: The display panel further includes a pixel circuit unit, a gate signal line and a data signal line; the pixel circuit unit includes a first circuit electrically connected to the first sub-pixel, a second circuit electrically connected to the second sub-pixel, a third circuit electrically connected to the third sub-pixel, and a fourth circuit electrically connected to the fourth sub-pixel; In the same pixel circuit unit, at least part of the first circuit, the second circuit, the third circuit and the fourth circuit is electrically connected to the same selection signal line; at least part of the first circuit, the second circuit, the third circuit and the fourth circuit is electrically connected to the same data signal line.

21. The display panel according to claim 20, characterized in that: The plurality of pixel units are arranged in rows along a first direction and in columns along a second direction intersecting the first direction, the extension direction of the selection signal line is not parallel to the first direction and is not parallel to the second direction, and the extension direction of the data signal line is not parallel to the first direction and is not parallel to the second direction.

22. The display panel according to claim 19, characterized in that: The display panel further includes a pixel circuit unit, a gate signal line and a data signal line; the pixel circuit unit includes a first circuit electrically connected to the first sub-pixel, a second circuit electrically connected to the second sub-pixel, a third circuit electrically connected to the third sub-pixel, and a fourth circuit electrically connected to the fourth sub-pixel; In the same pixel circuit unit, the first circuit, the second circuit, the third circuit and the fourth circuit are arranged along the first direction; The first circuit, the second circuit, the third circuit and the fourth circuit are electrically connected to the same selection signal line; The first circuit, the second circuit, the third circuit and the fourth circuit are electrically connected to four different data signal lines in a one-to-one correspondence.

23. The display panel according to claim 20, characterized in that: In the same pixel circuit unit, the lines connecting the centers of the first circuit, the second circuit, the third circuit and the fourth circuit form a third virtual quadrilateral; The pixel circuit unit is electrically connected to two adjacent selection signal lines, and the pixel circuit unit is electrically connected to two adjacent data signal lines; Among the first circuit, the second circuit, the third circuit and the fourth circuit, two arranged along the first direction are electrically connected to one of the selection signal lines; and two arranged along the second direction are electrically connected to one of the data signal lines.

24. The display panel according to claim 20, characterized in that: The pixel unit further includes a fifth sub-pixel, and the pixel circuit unit further includes a fifth circuit electrically connected to the fifth sub-pixel; In the same pixel circuit unit, at least part of the first circuit, the second circuit, the third circuit, the fourth circuit and the fifth circuit is electrically connected to the same selection signal line; at least part of the first circuit, the second circuit, the third circuit, the fourth circuit and the fifth circuit is electrically connected to the same data signal line.

25. The display panel according to claim 24, characterized in that: In the same pixel circuit unit, the connection lines of the centers of the first circuit, the third circuit, the fourth circuit and the fifth circuit form a fourth virtual quadrilateral; the second circuit is located in the fourth virtual quadrilateral; The pixel circuit unit is electrically connected to three adjacent selection signal lines, and the pixel circuit unit is electrically connected to three adjacent data signal lines; Among the first circuit, the third circuit, the fourth circuit and the fifth circuit, two of them arranged along the first direction are electrically connected to one of the selection signal lines; and two of them arranged along the second direction are electrically connected to one of the data signal lines; The second circuit is electrically connected to a selection signal line; the second circuit is electrically connected to one of the data signal lines.

26. The display panel according to claim 19, characterized in that: The display panel further includes a pixel circuit unit, a gate signal line and a data signal line; the pixel circuit unit includes a first circuit electrically connected to the first sub-pixel, a second circuit electrically connected to the second sub-pixel, a third circuit electrically connected to the third sub-pixel, a fourth circuit electrically connected to the fourth sub-pixel, and a fifth circuit electrically connected to the fifth sub-pixel; The first circuit, the second circuit, the third circuit, the fourth circuit and the fifth circuit are arranged at intervals along the first direction; The first circuit, the second circuit, the third circuit, the fourth circuit and the fifth circuit are electrically connected to the same selection signal line; The first circuit, the second circuit, the third circuit, the fourth circuit and the fifth circuit are electrically connected to five different data signal lines in a one-to-one correspondence.

27. A display device, characterized in that: The invention comprises the display panel as claimed in claims 19 to 26.

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