Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate and a pixel definition layer. The substrate is provided with an open hole close to the first frame, the substrate is provided with a display area, the display area surrounds the open hole, and the display area comprises a first display area arranged between the open hole and the first frame and a second display area arranged outside the first display area; the pixel defining layer is arranged on one side of the substrate, a plurality of pixel openings distributed in an array mode are formed in the pixel defining layer, and the adjacent pixel openings are separated by the pixel limiting parts. By increasing the area of the pixel limiting part of the first display area in unit area, increasing the flow rate of the fluid in the first display area and shortening the leveling time of the fluid in the first display area, the flatness of the packaging layer can be improved, the surface quality of the packaging layer is improved, the flatness of the display panel is further improved, and the use experience of a user is improved.

Description

Technical Field

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

[0002] Smart terminal products often have holes in the display screen for front-end or device settings. In order to increase the screen-to-body ratio and display effect, a hole is usually dug at the top of the display screen, resulting in a narrow display area at the top of the display screen, making packaging difficult, and causing the display area at the top of the display screen to be unevenly flat compared to other areas. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve flatness in order to solve the above technical problems.

[0004] In a first aspect, the present disclosure provides a display panel, comprising:

[0005] A base substrate, wherein the base substrate is provided with an opening arranged near the first frame, the base substrate has a display area, the display area surrounds the opening, and the display area includes a first display area arranged between the opening and the first frame, and a second display area arranged outside the first display area;

[0006] The pixel definition layer is arranged on one side of the base substrate. The pixel definition layer is provided with a plurality of pixel openings distributed in an array, and adjacent pixel openings are separated by a pixel defining portion.

[0007] The above-mentioned display panel can improve the flatness of the encapsulation layer and the surface quality of the encapsulation layer by increasing the area of ​​the pixel limiting portion of the first display area per unit area, increasing the flow rate of the fluid in the first display area, and shortening the leveling time of the fluid in the first display area, thereby improving the flatness of the encapsulation layer and the surface quality of the encapsulation layer, thereby improving the flatness of the display panel and the user experience.

[0008] In one embodiment, it also includes:

[0009] A plurality of support columns, wherein the plurality of support columns are arranged at intervals in the pixel defining portion, and the arrangement density of the support columns in the first display area is less than the arrangement density of the support columns in the second display area;

[0010] Preferably, the ratio of the arrangement density of the support columns in the first display area to the arrangement density of the support columns in the second display area is 1:2-1:5;

[0011] Preferably, a ratio of a setting density of the support columns in the first display area to a setting density of the support columns in the second display area is 1:4.

[0012] In this way, by reducing the setting density of the support columns in the first display area, the area of ​​the pixel defining portion of the first display area with the same unit area can be made larger, thereby reducing the obstacles encountered by the fluid flowing in the first display area, thereby increasing the flow rate of the fluid in the first display area and improving the flatness of the encapsulation layer.

[0013] In one embodiment, the pixel opening includes a first pixel opening disposed in the first display area, and a second pixel opening disposed in the second display area, and an area of ​​the first pixel opening is smaller than an area of ​​the second pixel opening.

[0014] In this way, by reducing the size of the first pixel opening in the first display area, the area of ​​the pixel defining portion of the first display area with the same unit area is made larger, the flow rate of the fluid in the first display area is increased, and the flatness of the encapsulation layer is improved.

[0015] In one embodiment, the pixel defining portion of the first display area is further provided with a strip-shaped groove, and the groove is provided between the first pixel openings in adjacent rows, or the groove is provided between the first pixel openings in adjacent columns;

[0016] Preferably, a distance between adjacent pixel openings in the first display area is greater than a distance between adjacent pixel openings in the second display area.

[0017] In this way, a groove is added to the pixel defining portion of the first display area, and the groove guides the fluid to flow toward the first display area, thereby increasing the flow rate of the fluid in the first display area and shortening the leveling time of the fluid in the first display area. This can improve the flatness of the encapsulation layer and the surface quality of the encapsulation layer, thereby improving the display effect of the display panel and the user experience.

[0018] In one embodiment, the groove is disposed between adjacent rows of the first pixel openings, and the groove extends along the row direction.

[0019] In one embodiment, the groove is disposed between adjacent columns of the first pixel openings, and the groove extends along a column direction.

[0020] In one embodiment, in the row direction, the sum of the length of the first pixel opening and the distance between adjacent first pixel openings is equal to the sum of the length of the second pixel opening and the distance between adjacent second pixel openings; and / or,

[0021] In the column direction, the sum of the length of the first pixel opening and the distance between adjacent first pixel openings is equal to the sum of the length of the second pixel opening and the distance between adjacent second pixel openings.

[0022] In this way, the difficulty of manufacturing the pixel unit can be reduced, and the difficulty and cost of manufacturing the display panel can be reduced.

[0023] In one embodiment, the display panel further includes:

[0024] A plurality of pixel units are arrayed on the base substrate, and the plurality of pixel units are arranged in a one-to-one correspondence with the plurality of pixel openings.

[0025] In one embodiment, the display panel further includes:

[0026] An organic encapsulation layer is provided on a side of the pixel definition layer away from the base substrate, and the encapsulation layer is formed by leveling the first display area and the second display area by inkjet printing;

[0027] Preferably, the display panel further comprises a first inorganic encapsulation layer, wherein the first inorganic encapsulation layer is disposed between the organic encapsulation layer and the pixel definition layer.

[0028] In this way, during the process of inkjet printing to form the encapsulation layer, the flow rate of the ink in the first display area is increased, the time required for the ink to be leveled in the first display area is shortened, and the flatness of the encapsulation layer in the first display area is improved, thereby improving the display effect of the display panel and the user experience.

[0029] In a second aspect, the present disclosure provides a display device, which includes the display panel as described in the first aspect, or the display device includes the display panel manufactured by the method for manufacturing a display panel as described in the second aspect.

[0030] The above-mentioned display device can improve the flatness of the encapsulation layer and the surface quality of the encapsulation layer by increasing the area of ​​the pixel limiting portion of the first display area per unit area, increasing the flow rate of the fluid in the first display area, and shortening the leveling time of the fluid in the first display area, thereby improving the flatness of the encapsulation layer and the surface quality of the encapsulation layer, thereby improving the flatness of the display panel and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of a display panel provided according to an embodiment.

[0033] Figure 2 A cross-sectional view of a display panel provided according to an embodiment.

[0034] Figure 3 A display panel of an embodiment Figure 1 A partial enlarged view of area A.

[0035] Figure 4 An embodiment provides Figure 3 A partial enlarged view of the middle AA area.

[0036] Figure 5 An embodiment provides Figure 3 A partial enlarged view of area B.

[0037] Figure 6 A display panel according to another embodiment Figure 1 A partial enlarged view of area A.

[0038] Figure 7 A display panel according to another embodiment Figure 1 A partial enlarged view of area A.

[0039] Figure 8 A display panel of yet another embodiment Figure 1 A partial enlarged view of area A.

[0040] Fig. 9 A process flow chart of a method for preparing a display panel provided in one embodiment.

[0041] Description of reference numerals:

[0042] 100, display panel; 10, base substrate; 10a, first frame; 200, display area; 101, first display area; 102, second display area; 11, opening; 20, pixel definition layer; 21, pixel opening; 211, first pixel opening; 212, second pixel opening; 22, pixel defining portion; 30, support column; 40, pixel unit; 50, encapsulation layer; 60, groove. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure 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 disclosure more thorough and comprehensive.

[0044] 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 the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0045] 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.

[0046] As described in the background technology, in order to set up the front camera, infrared sensor, and facial recognition (FACE ID) module hardware, smart terminal products usually use a long strip hole in the display screen. However, the long strip hole is usually set close to the top of the display screen, resulting in a narrow display area above the long strip hole. In the packaging process, inkjet printing (IJP), PECVD, screen printing or flash evaporation are usually used to make the packaging layer. Inkjet printing uses ink with low viscosity, and the packaging layer is formed by natural leveling of the ink. Since the display area above the long strip hole is narrow, it is difficult for the ink to flow in the display area above the long strip hole, resulting in long leveling time and poor flatness, which affects the user experience.

[0047] Based on the above reasons, the present disclosure provides a display panel and a display device. By increasing the area of ​​the pixel defining portion of the first display area per unit area, the flow rate of the fluid in the first display area is increased, and the leveling time of the fluid in the first display area is shortened, the flatness of the encapsulation layer can be improved, and the surface quality of the encapsulation layer can be improved, thereby improving the flatness of the display panel and improving the user experience.

[0048] In a first aspect, an embodiment of the present disclosure provides a display panel 100, which may include a flexible display panel having only a display function, or a flexible display panel having a touch function. The flexible display panel may be, for example, a flexible OLED (Organic Light-Emitting Diode) display panel, a flexible liquid crystal display panel (LCD), or other types of flexible display panels.

[0049] Specifically, refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, the display panel 100 includes a base substrate 10 and a pixel definition layer 20; the base substrate 10 may be a flexible polyimide (PI), a rigid glass or a thin metal sheet, etc. The present application embodiment will not discuss the base substrate 10 of other materials in detail, and those skilled in the art may select different types of materials according to actual needs. The base substrate 10 is provided with an opening 11 arranged near the first frame 10a. The opening 11 may be a through hole or a blind hole. It can be understood that a through hole is a hole that passes through the base substrate 10, and the depth of the through hole is equal to the thickness of the base substrate 10; a blind hole is a hole that does not pass through the base substrate 10, and the depth of the blind hole is less than the thickness of the base substrate 10.

[0050] The base substrate 10 has a display area 200, which surrounds the opening 11. The display area 200 includes a first display area 101 arranged between the opening 11 and the first frame 10a, and a second display area 102 arranged outside the first display area 101, wherein the opening 11 can be a circular hole, a square hole, a long strip hole, etc., and the opening 11 can be a regular hole or an irregular hole. The embodiments of the present application will not discuss openings 11 of other shapes in detail. Those skilled in the art can choose different shapes or sizes according to actual needs. The base substrate 10 includes at least three frames, usually, the base substrate 10 includes four frames, the opening 11 is arranged near the first frame 10a, the distance between the opening 11 and the first frame 10a is smaller than the distance between the opening 11 and other frames, and the width of the first display area 101 is smaller than the width of the second display area 102; the pixel definition layer 20 is arranged on one side of the base substrate 10, and the pixel definition layer 20 is provided with a plurality of pixel openings 21 in an array, and there are pixel defining portions 22 between the pixel openings 21, and adjacent pixel openings 21 are separated by the pixel defining portions 22. In the row direction, the pixel openings 21 in the first display area 101 are all located between the two opposite sides of the opening 11 in the row direction.

[0051] The area of ​​the pixel defining portion 22 per unit area of ​​the first display region 101 is greater than the area of ​​the pixel defining portion 22 per unit area of ​​the second display region 102 .

[0052] The above-mentioned display panel 100 can increase the area of ​​the pixel defining portion 22 of the first display area 101 per unit area, increase the flow rate of the fluid in the first display area 101, and shorten the leveling time of the fluid in the first display area 101, thereby improving the flatness of the encapsulation layer 50 and the surface quality of the encapsulation layer 50, thereby improving the flatness of the display panel 100 and improving the user experience.

[0053] In one embodiment, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4The display panel 100 further includes a plurality of support columns 30 , which are spaced apart in the pixel defining portion 22 , and a setting density of the support columns 30 in the first display area 101 is less than a setting density of the support columns 30 in the second display area 102 .

[0054] The support columns 30 are used to adjust the flow rate of the fluid in the display area 200. If the support columns 30 are densely arranged, the fluid leveling is greatly hindered, the leveling rate is slow, and the leveling time is long. If the support columns 30 are sparsely arranged, the fluid leveling is less hindered, the leveling rate is fast, and the leveling time is short. In this way, by reducing the arrangement density of the support columns 30 in the first display area 101, the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is made larger, and the obstacles encountered by the fluid in the first display area 101 are reduced, thereby increasing the flow rate of the fluid in the first display area 101, so that the flow rates of the fluid in the first display area 101 and the second display area 102 are close, and the flatness of the encapsulation layer 50 can be improved.

[0055] Preferably, the ratio of the arrangement density of the support columns 30 of the first display area 101 to the arrangement density of the support columns 30 of the second display area 102 is 1: 2-1: 5. For example, the ratio of the arrangement density of the support columns 30 of the first display area 101 to the arrangement density of the support columns 30 of the second display area 102 is 1: 2, 1: 2.2, 1: 2.5, 1: 2.7, 1: 2.9, 1: 3, 1: 3.2, 1: 3.5, 1: 3.7, 1: 3.9, 1: 4, 1: 4.2, 1: 4.5, 1: 4.7, 1: 4.9 or 1: 5.

[0056] In this way, by reasonably setting the density of the support columns 30 in the first display area 101 and the second display area 102, the flow rate of the fluid in the first display area 101 and the second display area 102 is made close, the time required for the fluid to be leveled in the first display area 101 and the second display area 102 is shortened, and the flatness of the encapsulation layer 50 is improved.

[0057] Preferably, the ratio of the arrangement density of the support columns 30 in the first display area 101 to the arrangement density of the support columns 30 in the second display area 102 is 1:4. In this way, the flow rate of the fluid in the first display area 101 and the second display area 102 is the same, and the time required for the fluid to be leveled in the first display area 101 and the second display area 102 is the same, the flatness of the display panel 100 is higher, and the surface quality of the display panel 100 is better, further improving the user experience.

[0058] In one embodiment, referring to Figure 1 , Figure 2 , Figure 6 , Figure 7, Figure 8 The pixel opening 21 includes a first pixel opening 211 provided in the first display area 101, and a second pixel opening 212 provided in the second display area 102, and the area of ​​the first pixel opening 211 is smaller than the area of ​​the second pixel opening 212. Thus, the area of ​​the pixel defining portion 22 between adjacent first pixel openings 211 is larger than the area of ​​the pixel defining portion 22 between adjacent second pixel openings 212; thus, by reducing the area of ​​the first pixel opening 211 in the first display area 101, the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is made larger, thereby increasing the flow rate of the fluid in the first display area 101 and improving the flatness of the encapsulation layer 50.

[0059] In one embodiment, referring to Figure 7 , Figure 8 The pixel defining portion 22 of the first display area 101 is further provided with a strip-shaped groove 60, which is provided between adjacent rows of first pixel openings 211, or between adjacent columns of first pixel openings 211. The groove 60 has a flow guiding function, which can increase the flow rate of the fluid in the first display area 101, so that the flow rates of the fluid in the first display area 101 and the second display area 102 tend to be consistent.

[0060] In one example, referring to Figure 7 , the groove 60 is disposed between adjacent rows of first pixel openings 211, and the groove 60 extends along the row direction. Figure 8 The groove 60 is disposed between adjacent columns of first pixel openings 211 , and the groove 60 extends along the column direction. In another example, the groove 60 is disposed between adjacent columns of first pixel openings 211 , and the groove 60 is also disposed between adjacent rows of first pixel openings 211 .

[0061] In this way, by reducing the size of the first pixel opening 211 of the first display area 101, the width of the pixel defining portion 22 of the first display area 101 is increased, and a groove 60 is added to the pixel defining portion 22 of the first display area 101. The groove 60 guides the fluid to flow toward the first display area 101, thereby increasing the flow rate of the fluid in the first display area 101 and shortening the leveling time of the fluid in the first display area 101. The flatness of the encapsulation layer 50 can be improved, and the surface quality of the encapsulation layer 50 can be improved, thereby improving the display effect of the display panel 100 and improving the user experience.

[0062] In one embodiment, referring to Figure 4 , Figure 5As shown, in the row direction, the sum of the length of the first pixel opening 211 and the distance d1 between adjacent first pixel openings 211 is equal to the sum of the length of the second pixel opening 212 and the distance between adjacent second pixel openings 212; and / or, in the column direction, the sum of the length of the first pixel opening 211 and the distance between adjacent first pixel openings 211 is equal to the sum of the length of the second pixel opening 212 and the distance between adjacent second pixel openings 212.

[0063] In the row direction, the sum of the length of the first pixel opening 211 and the distance d2 between adjacent first pixel openings 211 is the size of the pixel unit 40 in the first display area 101 in the row direction. The sum of the length of the second pixel opening 212 and the distance between adjacent second pixel openings 212 is the size of the pixel unit 40 in the second display area 102 in the row direction.

[0064] In the column direction, the sum of the length of the first pixel opening 211 and the distance between adjacent first pixel openings 211 is the size of the pixel unit 40 in the first display area 101 in the column direction. The sum of the length of the second pixel opening 212 and the distance between adjacent second pixel openings 212 is the size of the pixel unit 40 in the second display area 102 in the column direction.

[0065] In this way, the sizes of the pixel units 40 in the first display area 101 and the second display area 102 are the same, which reduces the difficulty in manufacturing the pixel units 40 and reduces the difficulty and cost of manufacturing the display panel 100 .

[0066] In one embodiment, referring to Figure 2 The display panel 100 further includes a plurality of pixel units 40 arrayed on the base substrate 10 , and the plurality of pixel units 40 are arranged in a one-to-one correspondence with the plurality of pixel openings 21 .

[0067] In one embodiment, referring to Figure 2 The display panel 100 further includes an organic encapsulation layer 50 , which is disposed on a side of the pixel definition layer 20 away from the base substrate 10 , and is formed by leveling the first display area 101 and the second display area 102 by inkjet printing.

[0068] In this way, during the process of inkjet printing to form the organic encapsulation layer 50, the flow rate of the ink in the first display area 101 is increased, the time required for the ink to be leveled in the first display area 101 is shortened, and the flatness of the organic encapsulation layer 50 in the first display area 101 is improved, thereby improving the display effect of the display panel 100 and the user experience.

[0069] Preferably, the display panel 100 further includes a first inorganic encapsulation layer (not shown in the figure), and the first inorganic encapsulation layer is disposed between the organic encapsulation layer 50 and the pixel definition layer 20 .

[0070] Based on the same inventive concept, the present disclosure provides a method for preparing a display panel, referring to Fig. 9 As shown, the method for preparing the display panel includes:

[0071] Step S11: providing a base substrate 10, wherein the base substrate 10 is provided with an opening 11 disposed near the first frame 10a, and the base substrate 10 has a display area 200, the display area 200 surrounds the opening 11, and the display area 200 includes a first display area 101 disposed between the opening 11 and the first frame 10a, and a second display area 102 disposed outside the first display area 101;

[0072] The substrate 10 may be flexible polyimide (PI), rigid glass or thin metal sheet, etc. The present application embodiment will not discuss other substrates 10 in detail, and those skilled in the art may select different types of materials according to actual needs.

[0073] The opening 11 may be a circular hole, a square hole, a long strip hole, etc. The opening 11 may be a regular hole or an irregular hole. The embodiments of the present application will not discuss openings 11 of other shapes in detail. Those skilled in the art may select different shapes or sizes according to actual needs. The base substrate 10 includes at least three frames. Usually, the base substrate 10 includes four frames. The opening 11 is arranged near the first frame 10a. The distance between the opening 11 and the first frame 10a is smaller than the distance between the opening 11 and the other frames. The width of the first display area 101 is smaller than the width of the second display area 102.

[0074] Step S12: forming a pixel definition layer 20 on one side of the base substrate 10, forming a plurality of pixel openings 21 in an array on the pixel definition layer 20, with pixel defining portions 22 between the pixel openings 21, and adjacent pixel openings 21 being separated by the pixel defining portions 22. The area of ​​the pixel defining portion 22 per unit area of ​​the first display area 101 is greater than the area of ​​the pixel defining portion 22 per unit area of ​​the second display area 102.

[0075] The above-mentioned method for preparing the display panel can improve the flatness of the organic encapsulation layer 50 and the surface quality of the organic encapsulation layer 50 by increasing the area of ​​the pixel defining portion 22 of the first display area 101 per unit area, increasing the flow rate of the fluid in the first display area 101, and shortening the leveling time of the fluid in the first display area 101, thereby improving the flatness of the organic encapsulation layer 50 and improving the surface quality of the organic encapsulation layer 50, thereby improving the flatness of the display panel 100 and improving the user experience.

[0076] In one embodiment, step S12: forming a pixel definition layer 20 on one side of the base substrate 10, after forming a plurality of pixel openings 21 in an array on the pixel definition layer 20, the preparation method further comprises:

[0077] Step S13 : forming a plurality of support columns 30 arranged at intervals in the pixel defining portion 22 , wherein the arrangement density of the support columns 30 in the first display area 101 is less than the arrangement density of the support columns 30 in the second display area 102 .

[0078] In this way, by reducing the setting density of the support columns 30 of the first display area 101, the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is made larger, thereby reducing the obstacles encountered by the fluid flowing in the first display area 101, thereby increasing the flow rate of the fluid in the first display area 101 and improving the flatness of the organic encapsulation layer 50.

[0079] Preferably, the ratio of the arrangement density of the support columns 30 of the first display area 101 to the arrangement density of the support columns 30 of the second display area 102 is 1:2-1:5; for example, the ratio of the arrangement density of the support columns 30 of the first display area 101 to the arrangement density of the support columns 30 of the second display area 102 is 1:2, 1:2.2, 1:2.5, 1:2.7, 1:2.9, 1:3, 1:3.2, 1:3.5, 1:3.7, 1:3.9, 1:4, 1:4.2, 1:4.5, 1:4.7, 1:4.9 or 1:5.

[0080] In this way, by reasonably setting the density of the support columns 30 in the first display area 101 and the second display area 102, the flow rate of the fluid in the first display area 101 and the second display area 102 is made close, the time required for the fluid to be leveled in the first display area 101 and the second display area 102 is shortened, and the flatness of the organic encapsulation layer 50 is improved.

[0081] Preferably, the ratio of the arrangement density of the support columns 30 in the first display area 101 to the arrangement density of the support columns 30 in the second display area 102 is 1:4. In this way, the flow rate of the fluid in the first display area 101 and the second display area 102 is the same, and the time required for the fluid to be leveled in the first display area 101 and the second display area 102 is the same, the flatness of the display panel 100 is higher, and the surface quality of the display panel 100 is better, further improving the user experience.

[0082] In one embodiment, step S12 forms a plurality of pixel openings 21 in an array on the pixel definition layer 20, including:

[0083] Step S121: forming a first pixel opening 211 in the first display area 101, and forming a second pixel opening 212 in the second display area 102, wherein the size of the first pixel opening 211 is smaller than the size of the second pixel opening 212, and the size of the pixel defining portion 22 between adjacent first pixel openings 211 is larger than the size of the pixel defining portion 22 between adjacent second pixel openings 212;

[0084] In this way, by reducing the size of the first pixel opening 211 of the first display area 101, the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is made larger, the flow rate of the fluid in the first display area 101 is increased, and the flatness of the organic encapsulation layer 50 is improved.

[0085] Preferably, after forming the first pixel opening 211 in the first display area 101 and forming the second pixel opening 212 in the second display area 102 in step S121, the method further includes:

[0086] Step S122 : forming a groove 60 between adjacent rows of first pixel openings 211 in the first display area 101 , or forming a groove 60 between adjacent columns of first pixel openings 211 in the first display area 101 .

[0087] In one example, the groove 60 is disposed between adjacent rows of first pixel openings 211. In another example, the groove 60 is disposed between adjacent columns of first pixel openings 211.

[0088] In this way, by reducing the size of the first pixel opening 211 of the first display area 101, the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is made larger, the flow rate of the fluid in the first display area 101 is increased, and the flatness of the organic encapsulation layer 50 is improved; and, by reducing the size of the first pixel opening 211 of the first display area 101, the width of the pixel defining portion 22 of the first display area 101 is increased, and a groove 60 is added to the pixel defining portion 22 of the first display area 101. The groove 60 guides the fluid to flow toward the first display area 101, thereby increasing the flow rate of the fluid in the first display area 101 and shortening the leveling time of the fluid in the first display area 101, which can improve the flatness of the organic encapsulation layer 50 and improve the surface quality of the organic encapsulation layer 50, thereby improving the display effect of the display panel 100 and improving the user experience.

[0089] In one embodiment, in step S12, before forming the pixel definition layer 20, a plurality of pixel units 40 are formed in an array on the base substrate 10, the pixel definition layer 20 is formed on the plurality of pixel units 40, the plurality of pixel units 40 are arranged in one-to-one correspondence with the plurality of pixel openings 21, and each pixel opening 21 exposes its corresponding pixel unit 40;

[0090] Preferably, the pixel unit 40 located in the first display area 101 and the pixel unit 40 located in the second display area 102 have the same size.

[0091] In this way, the sizes of the pixel units 40 in the first display area 101 and the second display area 102 are the same, which reduces the difficulty in manufacturing the pixel units 40 and reduces the difficulty and cost of manufacturing the display panel 100 .

[0092] Preferably, after step S12, the preparation method further comprises:

[0093] Step S15 : forming an organic encapsulation layer 50 on a side of the pixel definition layer 20 away from the base substrate 10 by inkjet printing, and the organic encapsulation layer 50 is formed in a level manner in the first display area 101 and the second display area 102 .

[0094] In this way, the sizes of the pixel units 40 in the first display area 101 and the second display area 102 are the same, which reduces the difficulty in manufacturing the pixel units 40, and reduces the difficulty and cost of manufacturing the display panel 100; in the process of forming the organic encapsulation layer 50 by inkjet printing, the flow rate of the ink in the first display area 101 is increased, and the time required for the ink to be leveled in the first display area 101 is shortened, thereby improving the flatness of the organic encapsulation layer 50 in the first display area 101, thereby improving the display effect of the display panel 100 and improving the user experience.

[0095] Based on the description of the above embodiments, more specific embodiments are proposed below for detailed description.

[0096] Embodiment 1:

[0097] This embodiment provides a method for manufacturing a display panel, and the method for manufacturing a display panel includes:

[0098] S101: providing a base substrate 10, wherein the base substrate 10 is provided with an opening 11 disposed near a first frame 10a, and the base substrate 10 has a display area 200, the display area 200 surrounds the opening 11, and the display area 200 includes a first display area 101 disposed between the opening 11 and the first frame 10a, and a second display area 102 disposed outside the first display area 101;

[0099] S102: forming a plurality of pixel units 40 in an array on the base substrate 10, and forming a pixel definition layer 20 on the plurality of pixel units 40;

[0100] S103: forming a pixel definition layer 20 on a side of the plurality of pixel units 40 away from the base substrate 10, forming a plurality of pixel openings 21 in an array on the pixel definition layer 20, the plurality of pixel units 40 and the plurality of pixel openings 21 are arranged one-to-one correspondingly, each pixel opening 21 exposes its corresponding pixel unit 40, and a pixel defining portion 22 is provided between the pixel openings 21, and the area of ​​the pixel defining portion 22 per unit area of ​​the first display area 101 is greater than the area of ​​the pixel defining portion 22 per unit area of ​​the second display area 102;

[0101] S104: forming a plurality of support columns 30 arranged at intervals in the pixel defining portion 22 , wherein the arrangement density of the support columns 30 in the first display area 101 is less than the arrangement density of the support columns 30 in the second display area 102 ;

[0102] Preferably, the ratio of the arrangement density of the support columns 30 in the first display area 101 to the arrangement density of the support columns 30 in the second display area 102 is 1:2-1:5;

[0103] Preferably, the ratio of the arrangement density of the support columns 30 in the first display area 101 to the arrangement density of the support columns 30 in the second display area 102 is 1:4;

[0104] S105 : forming an organic encapsulation layer 50 on a side of the pixel definition layer 20 away from the base substrate 10 by inkjet printing, and the organic encapsulation layer 50 is formed in a level manner in the first display area 101 and the second display area 102 .

[0105] The method for preparing the above-mentioned display panel reduces the setting density of the support columns 30 of the first display area 101 so that the area of ​​the pixel defining portion 22 of the first display area 101 with the same unit area is larger, thereby reducing the obstacles encountered by the fluid flowing in the first display area 101, thereby increasing the flow rate of the fluid in the first display area 101 and improving the flatness of the organic encapsulation layer 50.

[0106] Embodiment 2:

[0107] This embodiment provides a method for manufacturing a display panel, and the method for manufacturing a display panel includes:

[0108] S201: providing a base substrate 10, wherein the base substrate 10 is provided with an opening 11 disposed near a first frame 10a, and the base substrate 10 has a display area 200, the display area 200 surrounds the opening 11, and the display area 200 includes a first display area 101 disposed between the opening 11 and the first frame 10a, and a second display area 102 disposed outside the first display area 101;

[0109] S202: forming a plurality of pixel units 40 in an array on the base substrate 10, and forming a pixel definition layer 20 on the plurality of pixel units 40;

[0110] S203: forming a pixel definition layer 20 on a side of the plurality of pixel units 40 away from the base substrate 10, forming a plurality of pixel openings 21 in an array on the pixel definition layer 20, the plurality of pixel units 40 are arranged in one-to-one correspondence with the plurality of pixel openings 21, each pixel opening 21 exposes its corresponding pixel unit 40, and a pixel defining portion 22 is provided between the pixel openings 21, the pixel openings 21 include a first pixel opening 211 provided in the first display area 101 and a second pixel opening 212 provided in the second display area 102, and the size of the pixel defining portion 22 between adjacent first pixel openings 211 is greater than the size of the pixel defining portion 22 between adjacent second pixel openings 212;

[0111] S204: forming a groove 60 between adjacent rows of first pixel openings 211 in the first display area 101 , or forming a groove 60 between adjacent columns of first pixel openings 211 in the first display area 101 ;

[0112] S205 : forming an organic encapsulation layer 50 on a side of the pixel definition layer 20 away from the base substrate 10 by inkjet printing, and the organic encapsulation layer 50 is formed in a level manner in the first display area 101 and the second display area 102 .

[0113] The preparation method of the above-mentioned display panel reduces the size of the first pixel opening 211 of the first display area 101 and increases the distance between the first pixel openings 211 in adjacent rows or adjacent columns, so as to form a groove 60 between the first pixel openings 211 in adjacent rows or adjacent columns. The groove 60 guides the fluid to flow toward the first display area 101, increases the flow rate of the fluid in the first display area 101, shortens the leveling time of the fluid in the first display area 101, and can improve the flatness of the organic encapsulation layer 50, improve the surface quality of the organic encapsulation layer 50, thereby improving the display effect of the display panel 100 and improving the user experience.

[0114] Based on the same inventive concept, the present disclosure provides a display device, which includes the display panel 100 according to the first aspect, or the display device includes the display panel 100 manufactured by the method for manufacturing a display panel according to the second aspect.

[0115] It can be understood that the display device in the embodiments of the present disclosure can be an OLED display device, a QLED display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, or any other product or component with a display function, and the embodiments of the present disclosure are not limited to this.

[0116] The above-mentioned display device can improve the flatness of the encapsulation layer 50 and the surface quality of the encapsulation layer 50 by increasing the area of ​​the pixel defining portion 22 of the first display area 101 per unit area, thereby increasing the flow rate of the fluid in the first display area 101 and shortening the leveling time of the fluid in the first display area 101, thereby improving the flatness of the encapsulation layer 50 and improving the user experience.

[0117] The above-mentioned embodiments only express several implementation methods of the present disclosure, 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 ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: A base substrate, wherein the base substrate is provided with an opening arranged near the first frame, the base substrate has a display area, the display area surrounds the opening, and the display area includes a first display area arranged between the opening and the first frame, and a second display area arranged outside the first display area; The pixel definition layer is arranged on one side of the base substrate. The pixel definition layer is provided with a plurality of pixel openings distributed in an array, and adjacent pixel openings are separated by a pixel defining portion.

2. The display panel according to claim 1, characterized in that: Also includes: A plurality of support columns, wherein the plurality of support columns are arranged at intervals in the pixel defining portion, and the arrangement density of the support columns in the first display area is less than the arrangement density of the support columns in the second display area; Preferably, the ratio of the arrangement density of the support columns in the first display area to the arrangement density of the support columns in the second display area is 1:2-1:5; Preferably, a ratio of a setting density of the support columns in the first display area to a setting density of the support columns in the second display area is 1:

4.

3. The display panel according to claim 1, characterized in that: The pixel opening includes a first pixel opening disposed in the first display area and a second pixel opening disposed in the second display area, and an area of ​​the first pixel opening is smaller than an area of ​​the second pixel opening.

4. The display panel according to claim 3, characterized in that: The pixel defining portion of the first display area is further provided with a strip-shaped groove, and the groove is provided between the first pixel openings in adjacent rows, or the groove is provided between the first pixel openings in adjacent columns; Preferably, a distance between adjacent pixel openings in the first display area is greater than a distance between adjacent pixel openings in the second display area.

5. The display panel according to claim 4, characterized in that: The groove is disposed between adjacent rows of the first pixel openings, and the groove extends along the row direction.

6. The display panel according to claim 4, characterized in that: The groove is disposed between adjacent columns of the first pixel openings, and the groove extends along the column direction.

7. The display panel according to claim 4, characterized in that: In the row direction, the sum of the length of the first pixel opening and the distance between adjacent first pixel openings is equal to the sum of the length of the second pixel opening and the distance between adjacent second pixel openings; and / or, In the column direction, the sum of the length of the first pixel opening and the distance between adjacent first pixel openings is equal to the sum of the length of the second pixel opening and the distance between adjacent second pixel openings.

8. The display panel according to any one of claims 1 to 7, characterized in that: The display panel further includes: A plurality of pixel units are arrayed on the base substrate, and the plurality of pixel units are arranged in a one-to-one correspondence with the plurality of pixel openings.

9. The display panel according to any one of claims 1 to 7, characterized in that: The display panel further includes: An organic encapsulation layer is provided on a side of the pixel definition layer away from the base substrate, and the encapsulation layer is formed by leveling the first display area and the second display area by inkjet printing; Preferably, the display panel further comprises a first inorganic encapsulation layer, wherein the first inorganic encapsulation layer is disposed between the organic encapsulation layer and the pixel definition layer.

10. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 9.

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