Display panel and display device

Abstract

The present application relates to a display panel and a display device. The display panel comprises an array substrate and a planar layer and a light-emitting function layer sequentially disposed on the array substrate, the light-emitting function layer comprising a plurality of pixel units distributed in an array, the pixel units comprising display pixels and at least two irregular interference pixels, the planar layer being provided with irregular grooves having the same shape as the irregular interference pixels, the irregular interference pixels being disposed in the irregular grooves so that the distance between the display pixels and the array substrate is greater than the distance between the irregular interference pixels and the array substrate. The present application provides at least two irregular interference pixels and provides irregular grooves in the planar layer so that the irregular interference pixels are disposed in the irregular grooves, thereby improving the light extraction efficiency of the irregular interference pixels and thus improving the display brightness of the display panel.

Description

Technical Field

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

[0002] As users' awareness of confidentiality and protection increases, contemporary people have an increasing desire to protect their privacy, which has led to a huge market demand for anti-peeping technology for display devices.

[0003] In the related art, an interfering pixel is provided, and a black light shielding unit is provided on the light-emitting side of the interfering pixel to shield the light emitted at a normal viewing angle and limit the light emitted by the interfering pixel at a small angle, thereby affecting the display of normal pixels and avoiding wide-angle visibility.

[0004] However, in the related art, the black shading unit corresponding to the interference pixel reduces the aperture ratio of the display panel, reduces the brightness of the display panel, and causes a poor user experience. Summary of the invention

[0005] The present application aims to provide a display panel and a display device to solve the technical problem of poor brightness of anti-peeping display panels in the related art.

[0006] In a first aspect, an embodiment of the present application proposes a display panel, comprising an array substrate and a planar layer and a light-emitting functional layer sequentially located on the array substrate, the light-emitting functional layer comprising a plurality of pixel units distributed in an array, the pixel units comprising display pixels and at least two irregular interference pixels, the planar layer being provided with an irregularly shaped groove having the same shape as the irregularly shaped interference pixel, the angle between at least a portion of the inner wall of the irregularly shaped groove and the array substrate being not equal to 90° or 180°, the irregularly shaped interference pixel being arranged in the irregularly shaped groove so that the distance between the display pixel and the array substrate is greater than the distance between the irregularly shaped interference pixel and the array substrate.

[0007] In a possible implementation, the inner wall of the special-shaped groove includes at least one curved surface or two inclined surfaces.

[0008] In a possible implementation manner, each special-shaped groove includes at least two connected special-shaped sub-grooves, and the inner wall of each special-shaped sub-groove includes a curved surface or two inclined surfaces.

[0009] In a possible embodiment, a connecting wall is further provided between adjacent irregular sub-grooves, and the connecting wall is arranged parallel to the array substrate so that the irregular interference pixels on the connecting wall are in a straight state; the length of the connecting wall ranges from 1 / 3 to 1 / 2 of the length of the positive projection of the irregular sub-groove on the array substrate.

[0010] In a possible embodiment, a connecting surface is provided between two adjacent inclined surfaces in the irregular groove, and the connecting surface is arranged parallel to the array substrate so that the irregular interference pixels on the connecting surface are in a straight state, and the length range of the connecting surface is 1 / 3 to 1 / 2 of the length of the positive projection of the irregular groove on the array substrate.

[0011] In a possible implementation, at least two spaced-apart special-shaped grooves are provided between adjacent display pixels, two special-shaped interference pixels are respectively provided in the two special-shaped grooves, and the arrangement direction of the two special-shaped interference pixels is the long side direction of the display pixel; the side edges of the two special-shaped grooves facing away from each other are flush with the two opposite side edges of the display pixel.

[0012] In a possible implementation, the anodes of two irregular-shaped interfering pixels between adjacent display pixels are connected as an integrated structure; and / or, two spaced-apart shading units are respectively disposed above the two irregular-shaped interfering pixels between adjacent display pixels.

[0013] In a possible implementation, the angle between the extension line or tangent line of the middle position of the side wall of the special-shaped groove and the light emitting direction is in the range of 10° to 80°.

[0014] In a possible implementation, it further includes an encapsulation layer located on the light-emitting side of the light-emitting functional layer, the encapsulation layer including a first inorganic layer, an organic layer, and a second inorganic layer sequentially arranged in a direction away from the array substrate;

[0015] The display panel also includes: a pixel definition layer, which is also arranged between adjacent pixel units; an opening is provided above the pixel definition layer corresponding to the irregular groove, and the size of the opening is larger than the size of the irregular groove; a portion of the first inorganic layer is located on the side wall of the opening, and the orthographic projection of the portion of the first inorganic layer on the array substrate is staggered with the orthographic projection of the irregular interference pixel.

[0016] In a second aspect, an embodiment of the present application provides a display device, including: a display panel as in the first aspect.

[0017] The embodiment of the present application provides a display panel and a display device, the display panel includes an array substrate and a flat layer and a light-emitting function layer sequentially disposed on the array substrate, the light-emitting function layer includes a plurality of pixel units distributed in an array, the pixel units include display pixels and at least two irregular interference pixels, the flat layer is provided with an irregular groove having the same shape as the irregular interference pixel, the angle between at least part of the inner wall of the irregular groove and the array substrate is not equal to 90° or 180°, and the irregular interference pixel is disposed in the irregular groove so that the distance between the display pixel and the array substrate is greater than the distance between the irregular interference pixel and the array substrate. Compared with irregular interference pixels of regular shapes such as rectangular interference pixels, the present application provides irregular interference pixels, which can improve the light emission angle and improve the light emission efficiency of the irregular interference pixels. Compared with a single interference pixel, the present application provides at least two irregular interference pixels, and provides an irregular groove in the flat layer, so that the irregular interference pixel is located in the irregular groove, and the two irregular interference pixels cooperate with each other, which can improve the light emission efficiency of the irregular interference pixel from different directions and angles. Accordingly, the present application improves the number and shape of interference pixels, which can greatly improve the anti-peeping effect, and thus can appropriately reduce the size of the interference pixels, which in turn is conducive to increasing the area or density of the display pixels, thereby improving the display brightness and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals are used for the same components. The accompanying drawings are not drawn according to the actual scale, but are only used to illustrate the relative position relationship. The layer thickness of some parts is exaggerated for easy understanding, and the layer thickness in the accompanying drawings does not represent the proportional relationship of the actual layer thickness.

[0019] Figure 1 A schematic diagram showing the positional relationship between display pixels and irregular interference pixels provided in the first embodiment of the present application;

[0020] Figure 2 A side view of a first display panel in direction I provided by the first embodiment of the present application is shown;

[0021] Figure 3 A side view of a second display panel in direction I provided by the first embodiment of the present application is shown;

[0022] Figure 4 The luminous brightness spectrum of the display panel in the related art and the luminous brightness spectrum of the display panel 100 provided in the present application are shown;

[0023] Figure 5 A side view of a third display panel in direction I provided by the first embodiment of the present application is shown;

[0024] Figure 6A side view of a fourth display panel in direction I provided by the first embodiment of the present application is shown;

[0025] Figure 7 A side view of a fifth display panel in direction I provided by the first embodiment of the present application is shown;

[0026] Figure 8 A side view of a sixth display panel in direction I provided by the first embodiment of the present application is shown;

[0027] Fig. 9 A side view of a seventh display panel provided in the first embodiment of the present application in direction I is shown;

[0028] Fig.10 A side view of an eighth display panel provided in the first embodiment of the present application in direction I is shown;

[0029] Fig.11 A side view of a ninth display panel in direction I provided by the first embodiment of the present application is shown;

[0030] Fig.12 A side view of a sixth display panel in direction II provided by the first embodiment of the present application is shown;

[0031] Fig.13 A schematic diagram showing a process of a method for manufacturing a display panel provided in a second embodiment of the present application;

[0032] Fig.14 A schematic structural diagram of a display device provided in the third embodiment of the present application is shown.

[0033] Reference numerals:

[0034] 100. Display panel;

[0035] 10. Array substrate;

[0036] 20. Flat layer; 21. Special-shaped groove; 211. Special-shaped sub-groove; 212. Connecting wall;

[0037] 30. Light-emitting functional layer; 31. Pixel unit; 311. Display pixel; 312. Alien interference pixel; 313. Connection surface; 32. Pixel definition layer;

[0038] 41. first inorganic layer; 42. organic layer; 43. second inorganic layer;

[0039] 50. Shading unit;

[0040] 200. Display device. DETAILED DESCRIPTION

[0041] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least part of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of the regional structure may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0042] In the related art, an interfering sub-pixel is provided, and a black shading layer is provided on the upper side of the interfering sub-pixel to block the light emission of the sub-pixel at a normal viewing angle, thereby limiting the light emission of the interfering sub-pixel at a small angle, thereby affecting the normal pixel display while avoiding wide-angle visibility.

[0043] However, in the related art, the black light shielding layer corresponding to the interference sub-pixel reduces the aperture ratio of the display panel, reduces the brightness of the display panel, and causes a poor user experience.

[0044] In view of this, an embodiment of the present application provides a display panel and a display device, by setting at least two irregular-shaped interference pixels and setting an irregular-shaped groove in the flat layer, so that the irregular-shaped interference pixel is located in the irregular-shaped groove, the light output angle of the irregular-shaped interference pixel is improved, the light output efficiency is improved, and the display brightness of the display panel is thereby improved.

[0045] The specific structures and processes of the display panel and the display device provided in each embodiment of the present application are described below in conjunction with the accompanying drawings.

[0046] First embodiment

[0047] A first embodiment of the present application provides a display panel 100 , including an array substrate 10 , and a planar layer 20 and a light-emitting functional layer 30 sequentially located on the array substrate 10 .

[0048] The light-emitting functional layer 30 includes a plurality of pixel units 31 distributed in an array, the pixel unit 31 includes a display pixel 311 and at least two irregular interference pixels 312, the flat layer 20 is provided with an irregular groove 21 having the same shape as the irregular interference pixel 312, the angle between at least part of the inner wall of the irregular groove 21 and the array substrate 10 is not equal to 90° or 180°, and the irregular interference pixel 312 is arranged in the irregular groove 21 so that the distance between the display pixel 311 and the array substrate 10 is greater than the distance between the irregular interference pixel 312 and the array substrate 10.

[0049] Figure 1A schematic diagram showing the positional relationship between the display pixel 311 and the irregular interference pixel 312 provided in the first embodiment of the present application.

[0050] Figure 1 The horizontal and vertical dimensions of the irregular interference pixel 312 are similar, that is, square or circular, so as to fully utilize the light emitting area of ​​the interference pixel to emit light. The present application does not limit the specific positional relationship between the display pixel 311 and the irregular interference pixel 312.

[0051] At least two irregular interference pixels 312 are provided, and the irregular interference pixels 312 are relatively small in size. The oblique-angle light emitted by the irregular interference pixels 312 can be emitted through the gap between the two irregular interference pixels 312 to improve the luminous efficiency of the irregular interference pixels 312.

[0052] Specifically, the display panel 100 has an anti-peeping mode. When the anti-peeping mode is turned off, the display pixel 311 displays normally, the alien-shaped interference pixel 312 is turned off, and the display panel 100 can display clearly when viewed straight or obliquely. When the anti-peeping mode is turned on, the alien-shaped interference pixel 312 is turned on, and the forward light output of the alien-shaped interference pixel 312 is blocked by the shading unit 50, and the forward light output of the display pixel 311 is not interfered, and the display panel 100 can display clearly when viewed straight; the oblique light output of the alien-shaped interference pixel 312 is not blocked by the shading unit 50, and the oblique light output of the display pixel 311 will be mixed with the oblique light output of the alien-shaped interference pixel 312, and the display panel 100 cannot display clearly when viewed obliquely, thereby playing an anti-peeping role.

[0053] The height difference between the display pixel 311 and the irregular interference pixel 312 can be designed by the thickness difference of the flat layer 20. The flat layer 20 can be made of organic materials, and shapes with different heights in different areas can be prepared by half-tone mask or the like, or it can be formed by a double-layer flat process without adding additional processes. The flat layer 20 can be made of inorganic materials, and the height difference of the film thickness can be achieved by etching after depositing two or more layers of film.

[0054] In this embodiment, a special-shaped groove 21 is provided in the flat layer 20, and a special-shaped interference pixel 312 is provided in the special-shaped groove 21. The inclined portion of the special-shaped interference pixel 312 can significantly increase its light output brightness at an oblique angle, and while improving the oblique angle interference effect of the interference pixel, the overall light output efficiency of the special-shaped interference pixel 312 is improved. Accordingly, the present application improves the number and shape of the interference pixels, which can greatly improve the anti-peeping effect, and thus can appropriately reduce the size of the interference pixels, which is conducive to increasing the area or density of the display pixel 311, thereby improving the display brightness and effect.

[0055] In some embodiments, at least two spaced-apart irregular grooves 21 are provided between adjacent display pixels 311, two irregular interference pixels 312 are respectively provided in the two irregular grooves 21, and the arrangement direction of the two irregular interference pixels 312 is the long side direction of the display pixel 311; the back-facing sides of the two irregular grooves 21 are respectively flush with the two oppositely disposed sides of the display pixel 311.

[0056] Specifically, Figure 1 As shown, the sum of the length of two irregular interference pixels 312 and the length of the gap between the two irregular interference pixels 312 is equal to the length of the display pixel 311, so that the sizes of the display pixel 311 and the irregular interference pixel 312 are maximized while satisfying the compact arrangement between multiple pixel units 31, thereby improving the light output brightness of the irregular interference pixel 312.

[0057] In some embodiments, the inner wall of the irregular groove 21 includes at least one curved surface or two inclined surfaces. The cross-sectional shape of the irregular interference pixel 312 includes at least one curved surface or two inclined surfaces. The light emitted by the two opposite parts of the irregular interference pixel 312 forms a certain angle with the light emitted by the display pixel 311, so as to increase the light output rate of the irregular interference pixel 312 at an oblique angle.

[0058] For example, Figure 2 A side view of a first display panel in direction I provided by the first embodiment of the present application is shown; Figure 3 FIG. 2 shows a side view of a second display panel in the direction I provided by the first embodiment of the present application. Figure 2 As shown, the cross-sectional shape of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 is a V-shape, that is, Figure 2 The inner wall of the special-shaped groove 21 includes two inclined surfaces; Figure 3 As shown, the cross-sectional shape of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 is semicircular, that is, Figure 3 The inner wall of the middle special-shaped groove 21 includes a curved surface.

[0059] In the related art, the interference pixel is a rectangle, and in the present application, it is set as a special-shaped interference pixel 312. Compared with the related art, the size of the special-shaped interference pixel 312 is larger, that is, compared with the related art, the present application increases the light-emitting area of ​​the interference pixel, and further improves the brightness of the oblique-angle light emitted by the interference pixel.

[0060] Figure 4 The luminance spectrum of the display panel 100 in the related art and the luminance spectrum of the display panel 100 provided in the present application are shown, wherein (a) is the luminance spectrum of the interfering pixel in the related art; (b) is the luminance spectrum of the interfering pixel 312 in the present application.

[0061] Depend on Figure 4 It can be seen that Figure 2 or Figure 3 The display panel 100 has a light output intensity at 25° and -25° increased from 76% to 100%, and the light output intensity at -90° to -25° and 25° to 90° is also increased.

[0062] In some embodiments, each irregularly shaped groove 21 includes at least two connected irregularly shaped sub-grooves 211 , and the inner wall of each irregularly shaped sub-groove includes a curved surface or two inclined surfaces.

[0063] Figure 5 A side view of a third display panel in direction I provided by the first embodiment of the present application is shown; Figure 6 A side view of a fourth display panel in direction I provided by the first embodiment of the present application is shown; Figure 7 A side view of a fifth display panel in direction I provided by the first embodiment of the present application is shown; Figure 8 FIG. 2 shows a side view of the sixth display panel in the direction I provided by the first embodiment of the present application. Figure 5-Figure 8 As shown, Figure 5 The cross-sectional shape of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 shown is two continuous V-shaped shapes, that is, the cross-sectional shape of the irregular sub-groove 211 is a V-shaped shape; Figure 6 The cross-sectional shape of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 shown is two continuous inwardly concave V-shapes, that is, the cross-sectional shape of the irregularly shaped sub-groove 211 is a concave V-shape; Figure 7 The cross-sectional shape of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 shown is three concave V-shapes, that is, the cross-sectional shape of the irregular sub-groove 211 is a concave V-shape; Figure 8 The cross-sectional shapes of the irregular interference pixel 312 and the irregular groove 21 in the display panel 100 shown are two continuous outwardly convex V-shapes, that is, the cross-sectional shape of the irregularly shaped sub-groove 211 is an outwardly convex V-shape.

[0064] In particular, compared with Figure 2 , Figure 4 The depth of the special-shaped groove 21 in the display panel 100 shown is smaller, and the same luminous efficiency can be improved, so that production materials can be saved, production costs can be reduced, and processing difficulty can be reduced.

[0065] In some embodiments, a connecting wall 212 is further provided between adjacent irregular sub-grooves 211, and the connecting wall 212 is arranged parallel to the array substrate 10 so that the irregular interference pixels on the connecting wall 212 are in a straight state; the length range of the connecting wall 212 is 1 / 3 to 1 / 2 of the length of the positive projection of the irregular sub-groove on the array substrate.

[0066] Fig. 9 A side view of a seventh display panel provided in the first embodiment of the present application in direction I is shown; Fig.10 FIG. 2 shows a side view of the eighth display panel in the direction I provided by the first embodiment of the present application. Fig. 9 As shown, the cross-sectional shape of the irregular sub-grooves 211 in the display panel 100 is V-shaped, and a connecting wall 212 is disposed between two irregular sub-grooves 211 . Fig.10 The cross-sectional shape of the irregular sub-grooves 211 in the display panel 100 is a convex V-shape, and a connecting wall 212 is disposed between two irregular sub-grooves 211. Figure 5 and Figure 8 , Fig. 9 and Fig.10 A connecting wall 212 is provided between the two special-shaped sub-grooves 211 to passivate the angle of the connecting portion of the two V-shaped portions and the convex V-shaped portion, thereby preventing static charge from accumulating at the tip and thus preventing the circuit from being damaged.

[0067] In some embodiments, a connecting surface 313 is provided between two adjacent inclined surfaces in the irregular groove 21. The connecting surface 313 is arranged parallel to the array substrate 10 so that the irregular interference pixel 312 on the connecting surface 313 is in a straight state. The length range of the connecting surface 313 is 1 / 3 to 1 / 2 of the length of the positive projection of the irregular groove 21 on the array substrate 10.

[0068] Fig.11 FIG. 2 shows a side view of a ninth display panel in direction I provided by the first embodiment of the present application. Fig.11 As shown, the irregular interference pixel 312 in the display panel 100 includes two concave curved surfaces and a connecting surface 313 located between the two curved surfaces. Figure 2 The connection surface 313 is provided to effectively passivate the angle of the connecting portion of the two arc surfaces, thereby preventing static charge from accumulating at the tip, thereby preventing the circuit from being damaged.

[0069] In some embodiments, the anodes of two irregular interference pixels 312 between adjacent display pixels 311 are connected as an integrated structure; and / or, two spaced-apart shading units 50 correspond to the tops of the two irregular interference pixels 312 between adjacent display pixels 311 .

[0070] In some other embodiments, a shading unit 50 is correspondingly disposed directly above the two irregular-shaped interfering pixels 312 , and the orthographic projection of the shading unit 50 on the light-emitting functional layer 30 covers the two irregular-shaped interfering pixels 312 .

[0071] Fig.12 A side view of the sixth display panel in the direction II provided by the first embodiment of the present application is shown. Fig.12As shown, compared with setting one shading unit 50 directly above the two irregular-shaped interference pixels 312, two shading units 50 are respectively set directly above the two irregular-shaped interference pixels 312. The light emitted by the outermost convex arc-shaped parts of the two irregular-shaped interference pixels 312 can be emitted through the gap between the two shading units 50, further improving the light output efficiency of the irregular-shaped interference pixels 312.

[0072] The orthographic projection area of ​​the shading unit 50 on the array substrate 10 is larger than the orthographic projection area of ​​the irregular interference pixel 312 on the array substrate 10. The shading unit 50 is used to block the light emitted from the irregular interference pixel 312 at the normal viewing angle, and limit the interference pixel from emitting light at a small angle. In addition, since there is a certain distance between the shading unit 50 and the irregular interference pixel 312, the orthographic projection area of ​​the shading unit 50 on the array substrate 10 is larger than the orthographic projection area of ​​the irregular interference pixel 312 on the array substrate 10.

[0073] In some embodiments, the angle between the extended line or tangent line of the middle position of the side wall of the special-shaped groove 21 and the light emitting direction ranges from 10° to 80°.

[0074] When the side wall of the irregular groove 21 is a plane, the angle between the extended line or normal line at any position of the side wall and the light emitting direction is in the range of 10° to 80°; when the side wall of the irregular groove 21 is a curved surface, the angle between the normal line of the side wall except the two top ends and the light emitting direction is in the range of 10° to 80°. If the angle is too small or too large, it is difficult to make the outgoing light of the irregular interference pixel 312 be emitted from the position where the shading unit 50 is not set, and it is difficult to improve the brightness of the oblique-angle light emitted by the irregular interference pixel 312.

[0075] In some embodiments, an encapsulation layer is further included on the light-emitting side of the light-emitting functional layer 30 , and the encapsulation layer includes a first inorganic layer 41 , an organic layer 42 , and a second inorganic layer 43 which are sequentially arranged in a direction away from the array substrate 10 ;

[0076] The display panel further includes: a pixel definition layer 32, which is disposed between adjacent pixel units 31; and an opening is disposed above the pixel definition layer 32 corresponding to the irregular groove. Figure 2 In some embodiments, the size of the opening is larger than the size of the irregular groove 21; a portion of the first inorganic layer 41 is located on the side wall of the opening, and the orthographic projection of the portion of the first inorganic layer 41 on the array substrate 10 is staggered with the orthographic projection of the irregular interference pixel 312. This allows more light emitted by the irregular interference pixel 312 to not pass through the first inorganic layer 41 located on the side wall of the opening, thereby preventing the first inorganic layer 41 from reducing the light extraction rate. Figure 2 The arrows in the figure show the emission paths of some rays. Figure 2The opening of the pixel definition layer 32 is relatively wide, so the first inorganic layer 41 located on the side wall of the opening will not block the irregular interference pixel 312. Since most of the side walls of the irregular interference pixel 312 are inclined at an angle of 10% to 80% relative to the array substrate 10, when the light is emitted from the inclined side wall, the larger opening allows the light to avoid the first inorganic layer 41 located on the side wall of the opening. In other words, the opening size of the pixel definition layer 32 is matched with the shape of the irregular interference pixel 312, which is conducive to obtaining a higher light extraction rate. In other embodiments, refer to Figure 3 , Figure 5-Figure 12 The opening size of the pixel definition layer 32 can also be equal to or slightly smaller than the size of the irregular groove 21, that is, the opening is narrower, because the orthographic projection of the first inorganic layer 41 located on the side wall of the opening on the array substrate 10 will overlap with the orthographic projection of the irregular interference pixel 312, and part of the light will pass through the first inorganic layer 41 located on the side wall of the opening.

[0077] The thickness of the organic layer 42 corresponding to the irregular groove 21 is greater than the thickness of the other organic layers 42. By increasing the thickness of the organic layer 42 corresponding to the irregular groove 21 without changing the thickness of the first inorganic layer 41 and the second inorganic layer 43, the irregular groove 21 is provided to avoid defects such as holes and cracks in the first inorganic layer 41 or the second inorganic layer 43, which is beneficial to the subsequent packaging of the display panel 100.

[0078] In this embodiment, at least one V-shaped cross-sectional shape of the irregular interference pixel 312 is provided, wherein the inclined portion can significantly increase the light emission brightness at an oblique angle, improve the light emission efficiency of the irregular interference pixel 312, and thus improve the overall brightness of the display panel 100. In addition, an inclined surface or a curved surface is provided in the irregular interference pixel 312 to increase the size of the irregular interference pixel 312, increase the light emitting area, and further improve the overall brightness of the display panel 100. It is worth noting that the angle between the extended line of the side wall of the V-shaped groove and the light emission direction is in the range of 10° to 80° so that more of the emitted light of the irregular interference pixel 312 can be emitted at a certain angle from the position where the shading unit is not provided. The present application reduces the packaging difficulty of the display panel 100 by increasing the thickness of the organic layer 42 corresponding to the irregular groove 21 without changing the thickness of the first inorganic layer 41 and the second inorganic layer 43. The shading unit 50 is provided to prevent the light emitted at a small angle from the irregular interference pixel 312 from entering the human eye.

[0079] Second embodiment

[0080] Fig.13 A schematic flow chart of a method for manufacturing a display panel provided in a second embodiment of the present application is shown.

[0081] like Fig.13 As shown, a fourth embodiment of the present application provides a method for manufacturing a display panel, the method comprising:

[0082] Step S101: providing an array substrate.

[0083] Step S102: forming a patterned planar layer on the array substrate.

[0084] The flat layer is provided with special-shaped grooves.

[0085] Step S103: forming a patterned light-emitting functional layer on the planar layer.

[0086] Among them, the light-emitting functional layer includes a plurality of pixel units distributed in an array, the pixel unit includes a display pixel and at least two irregular-shaped interference pixels, the shape of the irregular-shaped groove is the same as the shape of the irregular-shaped interference pixel, and the irregular-shaped interference pixel is arranged in the irregular-shaped groove so that the distance between the display pixel and the array substrate is greater than the distance between the irregular-shaped interference pixel and the array substrate.

[0087] In this embodiment, by providing a special-shaped groove in the flat layer and providing a special-shaped interference pixel in the special-shaped groove, the inclined portion of the special-shaped interference pixel can significantly increase its light output brightness at an oblique viewing angle, while improving the oblique viewing angle interference effect of the interference pixel, and improving the overall light output efficiency of the special-shaped interference pixel, thereby improving the display brightness of the display panel.

[0088] Third embodiment

[0089] Fig.14 A schematic structural diagram of a display device 200 provided in the third embodiment of the present application is shown.

[0090] Fig.14 As shown, the fifth embodiment of the present application provides a display device 200 , including: the display panel 100 as mentioned above.

[0091] It should be easily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0092] The term "layer" used in the text may refer to a material portion including an area with a certain thickness. A layer may extend over the entire underlying structure or overlying structure, or may have a range smaller than the range of the underlying or overlying structure. In addition, a layer may be an area of ​​a homogeneous or inhomogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, a layer may be located between the top surface and the bottom surface of the continuous structure or between any paired lateral planes at the top surface and the bottom surface. A layer may extend laterally, vertically and / or along a tapered surface. A substrate substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and a contact layer (forming contacts, interconnects and / or vias therein) and one or more dielectric layers.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, comprising an array substrate and a planar layer and a light-emitting functional layer sequentially located on the array substrate, characterized in that: The light-emitting functional layer includes a plurality of pixel units distributed in an array, the pixel units include display pixels and at least two irregular-shaped interference pixels, the planar layer is provided with irregular-shaped grooves having the same shape as the irregular-shaped interference pixels, the angle between at least part of the inner wall of the irregular-shaped groove and the array substrate is not equal to 90° or 180°, and the irregular-shaped interference pixels are arranged in the irregular-shaped grooves so that the distance between the display pixels and the array substrate is greater than the distance between the irregular-shaped interference pixels and the array substrate; The irregular interference pixels cover the entire inner wall of the irregular groove; Two shading units arranged at intervals correspond to the upper sides of two irregular interference pixels between adjacent display pixels; The light of oblique angle emitted by the irregular-shaped interference pixel is emitted through the gap between two irregular-shaped interference pixels, or is emitted through the area above the display pixel.

2. The display panel according to claim 1, characterized in that: The inner wall of the special-shaped groove includes at least one curved surface or two inclined surfaces.

3. The display panel according to claim 2, characterized in that: Each of the special-shaped grooves includes at least two connected special-shaped sub-grooves, and the inner wall of each of the special-shaped sub-grooves includes a curved surface or two inclined surfaces.

4. The display panel according to claim 3, characterized in that: A connecting wall is also provided between adjacent irregular sub-grooves, and the connecting wall is arranged parallel to the array substrate so that the irregular interference pixels on the connecting wall are in a straight state; the length range of the connecting wall is 1 / 3 to 1 / 2 of the length of the positive projection of the irregular sub-groove on the array substrate.

5. The display panel according to claim 2 or 3, characterized in that: A connecting surface is provided between two adjacent inclined surfaces in the irregular groove, and the connecting surface is arranged parallel to the array substrate so that the irregular interference pixels on the connecting surface are in a straight state. The length range of the connecting surface is 1 / 3 to 1 / 2 of the length of the positive projection of the irregular groove on the array substrate.

6. The display panel according to claim 1, characterized in that: At least two of the irregularly shaped grooves are arranged at intervals between adjacent display pixels, two irregularly shaped interference pixels are respectively arranged in the two irregularly shaped grooves, and the arrangement direction of the two irregularly shaped interference pixels is the long side direction of the display pixel; the side edges of the two irregularly shaped grooves that are arranged opposite to each other are flush with the two side edges of the display pixel that are arranged oppositely.

7. The display panel according to claim 6, characterized in that: The anodes of two of the irregular interference pixels between adjacent display pixels are connected in an integrated structure.

8. The display panel according to claim 1, characterized in that: The angle between the extension line or tangent line of the middle position of the side wall of the special-shaped groove and the light emitting direction ranges from 10° to 80°.

9. The display panel according to claim 1, characterized in that: It also includes an encapsulation layer located on the light-emitting side of the light-emitting functional layer, wherein the encapsulation layer includes a first inorganic layer, an organic layer, and a second inorganic layer sequentially arranged in a direction away from the array substrate; The display panel also includes: a pixel definition layer, which is arranged between adjacent pixel units; the pixel definition layer is provided with an opening above the irregular groove corresponding to the irregular groove, and the size of the opening is larger than the size of the irregular groove; a portion of the first inorganic layer is located on the side wall of the opening, and the orthographic projection of the portion of the first inorganic layer on the array substrate is staggered with the orthographic projection of the irregular interference pixel.

10. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 9.

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