Display panel and display device

Abstract

The present invention provides a display panel and a display device. The display panel includes a first display area and a second display area, wherein the transmittance of the first display area is greater than the transmittance of the second display area. The first display area includes multiple pixel units, each including multiple sub-pixels, including at least two first sub-pixels, at least one second sub-pixel, and at least one third sub-pixel. The pixel unit includes a central area and at least one annular area surrounding the central area, wherein the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area. A first gap is formed between adjacent first sub-pixels along a tangential direction of the central area. The present invention provides a display panel and a display device to increase the light-emitting area of ​​the first sub-pixel and improve the aperture ratio of the display panel.

Description

Technical Field

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

[0002] As people's requirements for the visual experience of electronic products continue to increase, full-screen technology has become one of the research hotspots in the display field in recent years.

[0003] In order to achieve a full-screen display effect, more and more manufacturers are directly opening holes in the display panel to place cameras. Due to the existence of physical vias, a true 100% full screen cannot be achieved. In order to achieve a true 100% full screen, the camera is set under the screen, and the pixel density in the hole is reduced to increase the transmittance, which can also realize the camera function. Summary of the Invention

[0004] The present invention provides a display panel and a display device, so as to increase the light emitting area of ​​a first sub-pixel and improve the aperture ratio of the display panel.

[0005] In a first aspect, an embodiment of the present invention provides a display panel, comprising a first display area and a second display area, wherein the transmittance of the first display area is greater than the transmittance of the second display area;

[0006] The first display area includes a plurality of pixel units, each pixel unit includes a plurality of sub-pixels, and the plurality of sub-pixels include at least two first sub-pixels, at least one second sub-pixel, and at least one third sub-pixel;

[0007] The pixel unit includes a central area and at least one annular area, the annular area surrounds the central area, the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area;

[0008] Along the tangential direction of the central area, a first gap is spaced between two adjacent first sub-pixels.

[0009] In a second aspect, an embodiment of the present invention provides a display device, comprising the display panel described in the first aspect.

[0010] An embodiment of the present invention provides a display panel, in which a plurality of pixel units are arranged in a first display area, and each pixel unit includes a central area and an annular area. In the central area, at least two discrete first sub-pixels are arranged at intervals. Along the tangential direction of the central area, a first gap is spaced between two adjacent first sub-pixels. Since the plurality of first sub-pixels are concentrated in the same central area, when the plurality of first sub-pixels are produced, the plurality of first sub-pixels can share a mask plate opening, and the plurality of first sub-pixels can be distinguished and separated by the original structure in the display panel (such as the pixel opening of the pixel defining layer). Compared with using a plurality of mask plate openings to form a plurality of first sub-pixels respectively, the light-emitting area of ​​the first sub-pixels is increased, thereby improving the aperture ratio of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a top view of a display panel provided by an embodiment of the present invention;

[0012] Figure 2 for Figure 1 A schematic diagram of an enlarged structure of the middle S1 region;

[0013] Figure 3 A schematic diagram of a top view of a pixel unit provided by an embodiment of the present invention;

[0014] Figure 4 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0015] Figure 5 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0016] Figure 6 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0017] Figure 7 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0018] Figure 8 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0019] Figure 9 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0020] Figure 10 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0021] Figure 11 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0022] Figure 12 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0023] Figure 13 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0024] Figure 14 A schematic top view of another pixel unit provided by an embodiment of the present invention;

[0025] Figure 15 For the Figure 3 Schematic diagram of the cross-sectional structure in the AA' direction;

[0026] Figure 16 for Figure 1 Another enlarged structural diagram of the middle S1 region;

[0027] Figure 17 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0029] Figure 1 A schematic diagram of a top view of a display panel provided by an embodiment of the present invention, with reference to Figure 1 The display panel includes a first display area 11 and a second display area 12. The first display area 11 is multiplexed as a sensor reserved area. One or more optical sensors can be set in the first display area 11 to implement functions such as fingerprint recognition and optical lens imaging. Since the first display area 11 is multiplexed as a sensor reserved area, in order to increase the brightness of the light reaching the optical sensor in the first display area 11, the transmittance of the first display area 11 can be set to be greater than the transmittance of the second display area 12.

[0030] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the S1 region in the middle, refer to Figure 1 and Figure 2 The first display area 11 includes a plurality of pixel units 20. The plurality of pixel units 20 are arranged in rows and columns.

[0031] For example, Figure 2 As shown, a plurality of pixel units 20 are arranged in a matrix along a first direction and a second direction, wherein the first direction intersects the second direction.

[0032] Figure 3 A schematic diagram of a top view of a pixel unit according to an embodiment of the present invention is provided. Figure 3 , the pixel unit 20 includes a plurality of sub-pixels. The plurality of sub-pixels include at least two first sub-pixels 31, at least one second sub-pixel 32, and at least one third sub-pixel 33. The pixel unit 20 includes a central area 21 and at least one annular area 22, the annular area 22 surrounding the central area 21. The first sub-pixel 31 is located in the central area 21, and the second sub-pixel 32 and the third sub-pixel 33 are both located in the annular area 22. Along the tangential direction of the central area 21, a first gap 41 is separated between two adjacent first sub-pixels 31. The tangential direction of the central area 21 is perpendicular to the radial direction from the central area 21 to the annular area 22.

[0033] An embodiment of the present invention provides a display panel, in which a plurality of pixel units 20 are arranged in a first display area 11, and each pixel unit 20 includes a central area 21 and an annular area 22. In the central area 21, at least two discrete first sub-pixels 31 are arranged at intervals. Along the tangential direction of the central area 21, a first gap 41 is provided between two adjacent first sub-pixels 31. Since the plurality of first sub-pixels 31 are concentrated in the same central area 21, when the plurality of first sub-pixels 31 are manufactured, the plurality of first sub-pixels 31 can share a mask opening, and the plurality of first sub-pixels 31 can be distinguished and separated by the original structure in the display panel (such as the pixel opening of the pixel defining layer). Compared with using a plurality of mask openings to form a plurality of first sub-pixels 31 separately, the light-emitting area of ​​the first sub-pixels 31 is increased, thereby improving the aperture ratio of the display panel.

[0034] For example, refer to Figure 3 The first slits 41 are light-transmitting areas, increasing the transmittance of the first display area 11. The provision of the first slits 41 allows the first sub-pixels 31 in the central area 21 to be arranged irregularly, thus preventing constructive or destructive interference of light and reducing the diffraction effect.

[0035] For example, refer to Figure 3 , any two of the first sub-pixel 31 , the second sub-pixel 32 and the third sub-pixel 33 have different luminescent colors.

[0036] The present invention exemplarily provides some configurations of the first sub-pixels 31 in the central area 21 .

[0037] Optionally, refer to Figure 3All first sub-pixels 31 in the same pixel unit 20 have the same light-emitting area, so that in the same pixel unit 20, under the same driving current or driving voltage, each first sub-pixel 31 has the same light-emitting brightness, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0038] Optionally, refer to Figure 3 , the same central area 21 includes a first A sub-pixel 311, a first B sub-pixel 312, a first C sub-pixel 313, and a first D sub-pixel 314. In other embodiments, the same central area 21 may further include other numbers of first sub-pixels 31.

[0039] For example, refer to Figure 3 The first A sub-pixel 311, the first B sub-pixel 312, the first C sub-pixel 313 and the first D sub-pixel 314 have the same light-emitting area, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0040] Figure 4 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 4 In the same pixel unit 20 , there are at least two first sub-pixels 31 with different light-emitting areas.

[0041] For example, refer to Figure 4 The first A sub-pixel 311 and the first C sub-pixel 313 have the same light-emitting area, the first B sub-pixel 312 and the first D sub-pixel 314 have the same light-emitting area, and the first A sub-pixel 311 and the first B sub-pixel 312 have different light-emitting areas.

[0042] Figure 5 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 5 The central area 21 includes two first sub-pixels 31 , namely a first A sub-pixel 311 and a first B sub-pixel 312 . A first gap 41 is provided between the first A sub-pixel 311 and the first B sub-pixel 312 .

[0043] For example, refer to Figure 3-Figure 5 , the same central area 21 may include an even number of first sub-pixels 31 . In other embodiments, the same central area 21 may also include an odd number of first sub-pixels 31 .

[0044] Figure 6 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 6The same central area 21 includes three first sub-pixels 31 , namely a first A sub-pixel 311 , a first B sub-pixel 312 and a first C sub-pixel 313 .

[0045] For example, refer to Figure 5 The first A sub-pixel 311 , the first B sub-pixel 312 , and the first C sub-pixel 313 have the same light-emitting area, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0046] The present invention exemplarily provides some configurations of the annular region 22. In some embodiments, one pixel unit 20 may include one annular region 22.

[0047] Optionally, refer to Figure 3 At least one annular area 22 includes a first annular area 221, and the first annular area 221 is provided with at least one second sub-pixel 32 and at least one third sub-pixel 33. In the first annular area 221, along the tangential direction of the first annular area 221, a second gap 42 is separated between adjacent second sub-pixels 32 and third sub-pixels 33. The tangential direction of the first annular area 221 is perpendicular to the radial direction from the central area 21 to the annular area 22. In the embodiment of the present invention, each pixel unit 20 includes a central area 21 and a first annular area 221, and the first annular area 221 surrounds the central area 21. The first sub-pixels 31, the second sub-pixels 32, and the third sub-pixels 33 are distributed relatively concentratedly, and the distance between the first sub-pixel 31 and the second sub-pixel 32 is relatively close, and the distance between the first sub-pixel 31 and the third sub-pixel 33 is relatively close, which facilitates the formation of mixed color light by mixing the light of the first sub-pixel 31, the second sub-pixel 32, and the third sub-pixel 33, thereby achieving color display of the display panel.

[0048] For example, refer to Figure 3 The second slits 42 are light-transmitting areas, increasing the transmittance of the first display area 11. The second slits 42 provide an irregular arrangement of the first sub-pixels 31 in the central area 21, thereby preventing constructive or destructive interference of light and reducing the diffraction effect.

[0049] Optionally, refer to Figure 3 Along the radial direction pointing from the central area 21 to the first annular area 221, the first slit 41 and the second slit 42 do not overlap, and the light passing through the first slit 41 and the light passing through the second slit 42 will not interfere constructively or destructively, thereby reducing the diffraction effect.

[0050] Optionally, refer to Figure 3In the first annular area 221, the second sub-pixel 32 includes a second A sub-pixel 321 and a second B sub-pixel 322, and the third sub-pixel 33 includes a third A sub-pixel 331 and a third B sub-pixel 332. In other embodiments, the same first annular area 221 may further include other numbers of second sub-pixels 32 and other numbers of third sub-pixels 33.

[0051] Optionally, refer to Figure 3 The second-A sub-pixel 321 and the second-B sub-pixel 322 are located on opposite sides of the central area 21, while the third-A sub-pixel 331 and the third-B sub-pixel 332 are located on opposite sides of the central area 21. Along the tangential direction of the first annular area 221, the second-A sub-pixel 321 and the second-B sub-pixel 322 are separated by the third-A sub-pixel 331 or the third-B sub-pixel 332, and the third-A sub-pixel 331 and the third-B sub-pixel 332 are separated by the second-A sub-pixel 321 or the second-B sub-pixel 322. A third sub-pixel 33 is separated between two adjacent second sub-pixels 32, and a second sub-pixel 32 is separated between two adjacent third sub-pixels 33. This ensures that the sub-pixels of different luminous colors are uniformly illuminated. When the second-A sub-pixel 321 and the second-B sub-pixel 322 emit light together, the central field of view is located in the central area 21. When the third-A sub-pixel 331 and the third-B sub-pixel 332 emit light together, the central field of view is located in the central area 21. Therefore, in the same pixel unit 20, the central fields of view of all first sub-pixels 31, the central fields of view of all second sub-pixels 32, and the central fields of view of all third sub-pixels 33 are all located in the central area 21, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0052] Figure 7 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 7 The first annular region 221 is provided with at least one second sub-pixel 32 and at least one third sub-pixel 33. In the first annular region 221, along the tangential direction of the first annular region 221, a second gap 42 is provided between adjacent second sub-pixels 32 and third sub-pixels 33, a second gap 42 is provided between adjacent second sub-pixels 32, and a second gap 42 is provided between adjacent third sub-pixels 33.

[0053] For example, refer to Figure 7 Along the tangential direction of the first annular region 221, the second A sub-pixel 321 and the second B sub-pixel 322 are adjacent, and no other sub-pixel is provided between the second A sub-pixel 321 and the second B sub-pixel 322. Along the tangential direction of the first annular region 221, the third A sub-pixel 331 and the third B sub-pixel 332 are adjacent, and no other sub-pixel is provided between the third A sub-pixel 331 and the third B sub-pixel 332.

[0054] Figure 8 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 8 The first annular region 221 is provided with a second sub-pixel 32 and a third sub-pixel 33. Along the tangential direction of the first annular region 221, a second gap 42 is provided between the second sub-pixel 32 and the third sub-pixel 33.

[0055] For example, refer to Figure 3-Figure 8 In the first annular area 221 , the number of the second sub-pixels 32 is equal to the number of the third sub-pixels 33 . In other embodiments, in the first annular area 221 , the number of the second sub-pixels 32 is not equal to the number of the third sub-pixels 33 .

[0056] Figure 9 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 9 The first annular region 221 is provided with one second sub-pixel 32 and two third sub-pixels 33. The two third sub-pixels 33 are a third A sub-pixel 331 and a third B sub-pixel 332. In the first annular region 221, the number of second sub-pixels 32 is less than the number of third sub-pixels 33.

[0057] In one embodiment, in the first annular area 221 , the number of the second sub-pixels 32 is greater than the number of the third sub-pixels 33 .

[0058] Optionally, refer to Figure 3 , the second A sub-pixel 321 and the second B sub-pixel 322 are axisymmetric about the first symmetry axis L1. The third A sub-pixel 331 and the third B sub-pixel 332 are axisymmetric about the second symmetry axis L2. The first symmetry axis L1 and the second symmetry axis L2 are perpendicular to each other, and both the first symmetry axis L1 and the second symmetry axis L2 pass through the geometric center of the central area 21. Therefore, in the same pixel unit 20, the central fields of view of all first sub-pixels 31, the central fields of view of all second sub-pixels 32, and the central fields of view of all third sub-pixels 33 are all located in the central area 21. The light emitted by the second A sub-pixel 321 and the second B sub-pixel 322 having the same luminous color is axisymmetric, and the third A sub-pixel 331 and the third B sub-pixel 332 having the same luminous color are also axisymmetric, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0059] For example, refer to Figure 3The first A sub-pixel 311 and the first B sub-pixel 312 are axisymmetric about the second symmetry axis L2, and the first C sub-pixel 313 and the first D sub-pixel 314 are axisymmetric about the second symmetry axis L2. The first A sub-pixel 311 and the first D sub-pixel 314 are axisymmetric about the first symmetry axis L1, and the first B sub-pixel 312 and the first C sub-pixel 313 are axisymmetric about the first symmetry axis L1. The first A sub-pixel 311 and the first C sub-pixel 313 are axisymmetric about the geometric center of the central area 21, and the first B sub-pixel 312 and the first D sub-pixel 314 are axisymmetric about the geometric center of the central area 21. The second A sub-pixel 321 and the second B sub-pixel 322 are axisymmetric about the first symmetry axis L1. The third A sub-pixel 331 and the third B sub-pixel 332 are axisymmetric about the second symmetry axis L2. The second A sub-pixel 321 and the second B sub-pixel 322 are axisymmetric about the geometric center of the central area 21, and the third A sub-pixel 331 and the third B sub-pixel 332 are axisymmetric about the geometric center of the central area 21. Therefore, in the same pixel unit 20, the central fields of view of all first sub-pixels 31, the central fields of view of all second sub-pixels 32, and the central fields of view of all third sub-pixels 33 are all concentrated on the geometric center of the central area 21, thereby improving the display uniformity of the pixel unit 20 and the display uniformity of the display panel.

[0060] In one embodiment, the first symmetry axis L1 extends along the first direction, and the second symmetry axis L2 extends along the second direction.

[0061] Figure 10 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 10 The first A sub-pixel 311 and the first D sub-pixel 314 are axisymmetric about the first symmetry axis L1, and the first B sub-pixel 312 and the first C sub-pixel 313 are axisymmetric about the first symmetry axis L1. The second A sub-pixel 321 and the second B sub-pixel 322 are not axisymmetric about the first symmetry axis L1. The first A sub-pixel 311 and the first B sub-pixel 312 are axisymmetric about the second symmetry axis L2, and the first C sub-pixel 313 and the first D sub-pixel 314 are axisymmetric about the second symmetry axis L2. The third A sub-pixel 331 and the third B sub-pixel 332 are not axisymmetric about the second symmetry axis L2.

[0062] Optionally, refer to Figure 3 , first sub-pixel 31 emits green light. Because the human eye is more sensitive to green light than to other colors, that is, it is more sensitive to green light. Under the same radiant power, the light with the highest subjective brightness perceived by the human eye is green light. In this embodiment of the present invention, placing first sub-pixel 31 emitting green light in central area 21 improves the luminance of pixel unit 20.

[0063] Optionally, refer to Figure 3, the second sub-pixel 32 emits red light, and the third sub-pixel 33 emits blue light. In the same pixel unit 20, the light-emitting area of ​​all second sub-pixels 32 is smaller than the light-emitting area of ​​all third sub-pixels 33. When the number of second sub-pixels 32 is equal to the number of third sub-pixels 33, the light-emitting area of ​​a single second sub-pixel 32 is smaller than the light-emitting area of ​​a single third sub-pixel 33. This is because the lifespan of the blue light-emitting material is shorter than that of the red light-emitting material. In an embodiment of the present invention, the light-emitting area of ​​the second sub-pixel 32 that emits red light is smaller than the light-emitting area of ​​the third sub-pixel 33 that emits blue light, thereby increasing the light-emitting area of ​​the third sub-pixel 33 that emits blue light, so as to reduce the driving voltage and / or driving current of the third sub-pixel 33, extend the light-emitting lifespan of the third sub-pixel 33, balance the service life of each sub-pixel in the pixel unit 20, and thus increase the service life of the display panel.

[0064] In one embodiment, the first sub-pixel 31 emits red light, the second sub-pixel 32 emits blue light, and the third sub-pixel 33 emits green light.

[0065] In one embodiment, the first sub-pixel 31 emits red light, the second sub-pixel 32 emits green light, and the third sub-pixel 33 emits blue light.

[0066] In one embodiment, the first sub-pixel 31 emits blue light, the second sub-pixel 32 emits red light, and the third sub-pixel 33 emits green light.

[0067] In one embodiment, the first sub-pixel 31 emits blue light, the second sub-pixel 32 emits green light, and the third sub-pixel 33 emits red light.

[0068] Figure 11 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 11 , the light-emitting areas of all second sub-pixels 32 are equal to the light-emitting areas of all third sub-pixels 33. When the number of second sub-pixels 32 is equal to the number of third sub-pixels 33, the light-emitting area of ​​a single second sub-pixel 32 is equal to the light-emitting area of ​​a single third sub-pixel 33.

[0069] The present invention exemplarily provides some configurations of the annular regions 22. In some embodiments, a pixel unit 20 may include at least two annular regions 22.

[0070] Figure 12 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 12At least one annular area 22 includes a first annular area 221 and a second annular area 222. The second annular area 222 surrounds the first annular area 221, and the second annular area 222 surrounds the central area 21. The first annular area 221 is provided with at least one second sub-pixel 32, and the second annular area 222 is provided with at least one third sub-pixel 32. In the embodiment of the present invention, the second sub-pixel 32 is provided in the first annular area 221, and the third sub-pixel 33 is provided in the second annular area 222. Sub-pixels of the same luminous color are located in the same annular area (including the first annular area 221 and the second annular area 222), thereby reducing the difficulty of manufacturing the display panel.

[0071] For example, refer to Figure 12 The first annular area 221 is provided with a second sub-pixel 32, which is annular and surrounds the central area 21. The second annular area 222 is provided with a third sub-pixel 33, which is annular and surrounds the central area 21.

[0072] Figure 13 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 13 , at least two second sub-pixels 32 are set in the first annular area 221. In the first annular area 221, along the tangential direction of the first annular area 221, a second gap 42 is set between adjacent second sub-pixels 32. The second annular area 222 is provided with at least two third sub-pixels 33. In the second annular area 222, along the tangential direction of the second annular area 222, a third gap 43 is set between adjacent third sub-pixels 33. The tangential direction of the second annular area 222 is perpendicular to the radial direction from the central area 21 to the annular area 22. In the embodiment of the present invention, the second gap 42 is set in the first annular area 221, and the third gap 43 is set in the second annular area 222. The second gap 42 and the third gap 43 are light-transmitting areas, which increase the transmittance of the first display area 11. The second slits 42 are provided so that the second sub-pixels 32 of the first annular area 221 and the third sub-pixels 33 of the second annular area 222 are arranged irregularly, thereby avoiding constructive or destructive interference of light and reducing the diffraction effect.

[0073] Optionally, refer to Figure 13 Along the radial direction pointing from the central area 21 to the first annular area 221, no two of the first slits 41, the second slits 42, and the third slits 43 overlap. Light passing through the first slit 41 does not interfere constructively or destructively with light passing through the second slit 42. Light passing through the first slit 41 does not interfere constructively or destructively with light passing through the third slit 43. Light passing through the second slit 42 does not interfere constructively or destructively with light passing through the third slit 43, thereby reducing the diffraction effect.

[0074] For example, refer to Figure 13 The first annular region 221 is provided with a second A sub-pixel 321 and a second B sub-pixel 322. A second gap 42 is provided between the second A sub-pixel 321 and the second B sub-pixel 322. The second annular region 222 is provided with a third A sub-pixel 331 and a third B sub-pixel 332. A third gap 43 is provided between the third A sub-pixel 331 and the third B sub-pixel 332.

[0075] Figure 14 A schematic diagram of a top view of another pixel unit provided in an embodiment of the present invention, referring to Figure 14 The at least one annular area 22 includes a first annular area 221 and a second annular area 222, and the second annular area 222 surrounds the first annular area 221. The first annular area 221 is provided with at least one second sub-pixel 32 and at least one third sub-pixel 32, and the second annular area 222 is provided with at least one second sub-pixel 32 and at least one third sub-pixel 33.

[0076] Optionally, refer to Figure 14 The second sub-pixel 32 includes a second A sub-pixel 321 and a second B sub-pixel 322. The second A sub-pixel 321 is located in the first annular area 221, and the second B sub-pixel 322 is located in the second annular area 222. The third sub-pixel 33 includes a third A sub-pixel 331 and a third B sub-pixel 332. The third A sub-pixel 331 is located in the first annular area 221, and the third B sub-pixel 332 is located in the second annular area 222. In this embodiment of the present invention, the first annular area 221 is provided with the second A sub-pixel 321 and the third A sub-pixel 331, and a second gap 42 is provided between the second A sub-pixel 321 and the third A sub-pixel 331. The second annular area 222 is provided with the second B sub-pixel 322 and the third B sub-pixel 332, and a third gap 43 is provided between the second B sub-pixel 322 and the third B sub-pixel 332.

[0077] Optionally, refer to Figure 3 , the central region 21 is circular or elliptical. The more regular the edges of two regions with different light transmittances, the more likely diffraction will occur; the more irregular the edges of two regions with different light transmittances, the less likely diffraction will occur. In the embodiments of the present invention, by setting the central region 21 to be circular or elliptical, the regularity of the edges is destroyed, which is equivalent to a straight edge, reducing the diffraction effect.

[0078] For example, refer to Figure 3 The annular area 22 is in the shape of a circular ring or an elliptical ring, which is equivalent to a straight edge, destroying the regularity of the edge and reducing the diffraction effect.

[0079] Figure 15 For the Figure 3Schematic diagram of the cross-section structure in the AA' direction, refer to Figure 3 and Figure 15 The subpixel includes an anode 51, a light-emitting material layer 52, and a cathode 53, with the light-emitting material layer 52 located between the anode 51 and the cathode 53. The display panel also includes a pixel-defining layer 54, which is provided with a pixel opening 541. The light-emitting material layer 52 is located in the pixel opening 541. In an embodiment of the present invention, the display panel is an organic light-emitting display panel. When manufacturing multiple first subpixels 31, the multiple first subpixels 31 can share a single mask opening, and the multiple first subpixels can be distinguished and separated by the pixel opening 541 of the pixel-defining layer 54. Because the control precision of the manufacturing process of the pixel opening 541 is greater than the control precision of the mask opening, using the pixel opening 541 to separate the multiple first subpixels 31 has higher control precision, smaller process fluctuations, and smaller process error margins than using multiple mask openings to form multiple first subpixels 31 separately. As a result, first subpixels 31 with larger light-emitting areas can be provided, thereby increasing the light-emitting area of ​​the first subpixels 31 and improving the aperture ratio of the display panel.

[0080] For example, refer to Figure 15 The sub-pixel may further include at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer. Light is generated in the luminescent material layer 52. The hole injection layer, hole transport layer, electron blocking layer, hole blocking layer, electron transport layer, and electron injection layer are auxiliary layers designed to improve light output efficiency.

[0081] For example, refer to Figure 15 The display panel may further include a pixel driving circuit for driving the sub-pixels to emit light for display. The pixel driving circuit includes a thin film transistor 55, the source or drain of which is electrically connected to the anode 51. When the thin film transistor 55 is turned on, the anode 51 is provided with a data voltage signal to control the brightness of the sub-pixel.

[0082] Figure 16 for Figure 1 Another enlarged structural diagram of the S1 region, see Figure 1 and Figure 16 The first display area 11 includes a plurality of pixel units 20. The plurality of pixel units 20 are arranged in rows and columns. The plurality of pixel units 20 are arranged into pixel rows along a first direction, and the plurality of pixel rows are arranged along a second direction. Along the first direction, the sub-pixels in two adjacent pixel rows are staggered. Along the second direction, the sub-pixels in one pixel row overlap the gaps between the two sub-pixels in its adjacent pixel row.

[0083] An embodiment of the present invention further provides a display device. Figure 17A schematic diagram of a display device according to an embodiment of the present invention is provided. Figure 17 The display device includes any one of the display panels provided in the embodiments of the present invention. The display device can specifically be a mobile phone, a tablet computer, a smart wearable device, etc.

[0084] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: comprising a first display area and a second display area, wherein the transmittance of the first display area is greater than the transmittance of the second display area; The first display area includes a plurality of pixel units, each pixel unit includes a plurality of sub-pixels, and the plurality of sub-pixels include at least two first sub-pixels, at least one second sub-pixel, and at least one third sub-pixel; The pixel unit includes a central area and at least one annular area, the annular area surrounds the central area, the first sub-pixel is located in the central area, and the second sub-pixel and the third sub-pixel are both located in the annular area; Along the tangential direction of the central area, a first gap is spaced between two adjacent first sub-pixels; The at least one annular area includes a first annular area, wherein the first annular area is provided with at least one second sub-pixel and at least one third sub-pixel; In the first annular area, along a tangential direction of the first annular area, a second gap is formed between adjacent second sub-pixels, between adjacent third sub-pixels, or between adjacent second sub-pixels and the third sub-pixel; Along a radial direction from the central area to the first annular area, the first gap and the second gap do not overlap.

2. The display panel according to claim 1, wherein: All the first sub-pixels in the same pixel unit have the same light-emitting area.

3. The display panel according to claim 1, wherein: The at least two first sub-pixels include a first A sub-pixel, a first B sub-pixel, a first C sub-pixel, and a first D sub-pixel.

4. The display panel according to claim 1, wherein: In the first annular area, the second sub-pixel includes a second A sub-pixel and a second B sub-pixel, and the third sub-pixel includes a third A sub-pixel and a third B sub-pixel.

5. The display panel according to claim 4, wherein: The second A sub-pixel and the second B sub-pixel are located on two opposite sides of the central area, and the third A sub-pixel and the third B sub-pixel are located on two opposite sides of the central area.

6. The display panel according to claim 5, wherein: The second A sub-pixel and the second B sub-pixel are axisymmetric about a first symmetry axis; The third A sub-pixel and the third B sub-pixel are axisymmetric about a second symmetry axis; The first symmetry axis and the second symmetry axis are perpendicular to each other and pass through the geometric center of the central area.

7. The display panel according to claim 1, wherein: The first sub-pixel emits green light.

8. The display panel according to claim 7, wherein: The second sub-pixel emits red light, and the third sub-pixel emits blue light; In the same pixel unit, the light-emitting areas of all the second sub-pixels are smaller than the light-emitting areas of all the third sub-pixels.

9. The display panel according to claim 1, wherein: The at least one annular region includes a first annular region and a second annular region, the second annular region surrounding the first annular region; The first annular area is provided with at least one second sub-pixel, and the second annular area is provided with at least one third sub-pixel.

10. The display panel according to claim 9, wherein: At least two second sub-pixels are provided in the first annular area; in the first annular area, a second gap is provided between adjacent second sub-pixels along a tangential direction of the first annular area; At least two third sub-pixels are provided in the second annular area; and in the second annular area, a third gap is provided between adjacent third sub-pixels along a tangential direction of the second annular area.

11. The display panel according to claim 10, wherein: Along a radial direction pointing from the central area to the first annular area, any two of the first gap, the second gap, and the third gap do not overlap.

12. The display panel according to claim 1, wherein The at least one annular region includes a first annular region and a second annular region, the second annular region surrounding the first annular region; The first annular area is provided with at least one second sub-pixel and at least one third sub-pixel, and the second annular area is provided with at least one second sub-pixel and at least one third sub-pixel.

13. The display panel according to claim 12, wherein: The second sub-pixel includes a second A sub-pixel and a second B sub-pixel, the second A sub-pixel is located in the first annular area, and the second B sub-pixel is located in the second annular area; The third sub-pixel includes a third A sub-pixel and a third B sub-pixel. The third A sub-pixel is located in the first annular area, and the third B sub-pixel is located in the second annular area.

14. The display panel according to claim 1, wherein The central area is circular or elliptical.

15. The display panel according to claim 1, wherein The sub-pixel includes an anode, a light-emitting material layer and a cathode, wherein the light-emitting material layer is located between the anode and the cathode; It also includes a pixel defining layer, wherein the pixel defining layer is provided with a pixel opening, and the light-emitting material layer is located in the pixel opening.

16. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 15.

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