Display panel

Abstract

The utility model belongs to the technical field of display, and relates to a display panel, which comprises a substrate, a plurality of first pixel partitions arranged on the substrate along a first direction and a plurality of second pixel partitions arranged on the substrate along a second direction, the plurality of first pixel partitions and the plurality of second pixel partitions are mutually staggered and enclosed to form a plurality of pixel openings, and the forward projection of the pixel opening on the substrate is one of a circle, an ellipse and a similar ellipse. According to the invention, the forward projection of the pixel opening on the substrate is one of a circle, an ellipse and a similar ellipse, so that the roughness of a thin film is improved during preparation, and the uniformity of film formation is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel. Background Technology

[0002] In the current development of electronic devices, solution methods are commonly used to prepare display panels. However, uneven film formation often occurs during the preparation process.

[0003] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0004] In view of the above, this application provides a display panel that adopts the following technical solution:

[0005] A display panel includes a substrate, on which a plurality of first pixel barriers are disposed along a first direction and a plurality of second pixel barriers are disposed along a second direction. The plurality of first pixel barriers and the plurality of second pixel barriers are interleaved to form a plurality of pixel openings. The forward projection of the pixel openings on the substrate is one of a circle, an ellipse, or a quasi-ellipse.

[0006] Compared with the prior art, this application has the following main advantages:

[0007] This application improves the roughness of the film and enhances the uniformity of film formation by projecting the pixel opening onto the substrate in a circular, elliptical, or near-elliptical shape during fabrication. Attached Figure Description

[0008] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a top view of the display panel according to an embodiment of this application;

[0010] Figure 2 This is a cross-sectional view of the display panel according to an embodiment of this application;

[0011] Figure 3 This is a top view of the first embodiment of the first pixel dike;

[0012] Figure 4 This is a top view of Embodiment 2 of the first pixel embankment;

[0013] Figure 5 This is a top view of Embodiment 3 of the first pixel dike;

[0014] Figure 6 This is a top view of the second pixel embankment;

[0015] Figure 7 This is one of the top views of the display panel in the embodiments of this application, in which a portion of the second pixel partition is omitted;

[0016] Figure 8 This is a second top view of the display panel in the embodiments of this application, in which the second pixel partition is omitted.

[0017] Figure 9 This is a surface topography view of the display panel according to an embodiment of this application;

[0018] Figure 10 This is one of the top views of a display panel in the prior art;

[0019] Figure 11 This is a top view of a display panel using existing technology;

[0020] Figure 12 It is a surface topography diagram of a display panel in the prior art.

[0021] Reference numerals: 100, first pixel barrier; 101, first barrier unit; 102, barrier space; 200, second pixel barrier; 300, pixel opening; 1, recess; 2, overlapping portion; 3, substrate; 10, hydrophilic bank; 20, hydrophobic bank. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application.

[0025] In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the orientation shown in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish a numerical order.

[0026] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural.

[0027] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one," "at least one of the following," or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, "at least one of a, b, or c," or "at least one of a, b, and c," can both mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple.

[0028] Various embodiments of this application may exist in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a hard limitation on the scope of this application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. Furthermore, whenever a numerical range is referred to herein, it means including any referenced number (fraction or integer) within the referred range.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Currently, solution processing is commonly used to manufacture light-emitting displays such as OLEDs and QLEDs. Due to its advantages such as low cost, high production capacity, ease of achieving large sizes, and excellent display performance, it is an important direction for the future development of display technology. Printing is one of the process technologies suitable for solution processing.

[0031] In the printing process for manufacturing display panels, to maximize the uniformity of film thickness among pixels and improve printing efficiency, existing technologies typically employ a line bank pixel bank design, as shown in the attached diagram. Figure 10 As shown, the linear hydrophilic bank 10 and hydrophobic bank 20 intersect each other perpendicularly, giving the entire light-emitting pixel a rectangular shape. However, the right-angled pixel bank structure in the prior art affects the morphology after ink drying, and its morphology uniformity is shown in the attached figure. Figure 12 As shown in the figure, the green part represents the part with good film uniformity, accounting for 82.1%. The thickness of the blue part is significantly lower than that of the green part (the part with uniform morphology), and the blue part accounts for 14.3% of the pixel aperture area. The thickness of the red part is significantly greater than that of the green part, and the red part accounts for 3.52%. The film thickness of the blue part is less than 104nm, the film thickness of the green part is 104-114nm, and the film thickness of the red part is greater than 114nm. It can be seen that in the existing technology, the film thickness in the right-angle region is relatively thin, while the thickness in the middle is relatively thick, and the film thickness is not uniform.

[0032] If the hydrophilic bank 10 is designed in the form of SBS, the uneven film formation can be significantly improved, as shown in the attached figure. Figure 11 As shown. However, if the hydrophilic bank 10 is designed in an SBS shape, considering the manufacturing process, the hydrophobic bank 20 needs to be extended outward by several micrometers compared to the hydrophilic bank 10, which will lead to a decrease in the overall aperture ratio of the panel.

[0033] As attached Figure 1 To be continued Figure 9 As shown, this application embodiment provides a display panel that adopts the following technical solution:

[0034] Example 1

[0035] As attached Figure 1 To be continued Figure 3As shown, a display panel includes a substrate, on which a plurality of first pixel partitions 100 are disposed along a first direction X and a plurality of second pixel partitions 200 are disposed along a second direction Y. The plurality of first pixel partitions 100 and the plurality of second pixel partitions 200 are interleaved to form a plurality of pixel openings 300. The forward projection of the pixel openings 300 on the substrate is one of a circle, an ellipse, or a quasi-ellipse.

[0036] This application improves the roughness of the film and enhances the uniformity of film formation by making the corners of the pixel opening 300 arc-shaped.

[0037] Furthermore, the first direction X is the length direction of the first pixel barrier 100, and the second direction Y is the length direction of the second pixel barrier 200. The length direction is the direction from the geometric center of the first pixel barrier 100 and the second pixel barrier 200 to the farthest point of their shape, that is, the direction of extension and lengthening. Multiple first pixel barriers 100 and multiple second pixel barriers 200 are arranged in multiple rows and multiple columns. That is, rows refer to the arrangement along the first direction X, and columns refer to the arrangement along the second direction Y.

[0038] In one embodiment, the corners of the pixel opening 300 are arc-shaped; and / or,

[0039] The material of the first pixel barrier 100 includes a hydrophilic material, and the material of the second pixel barrier 200 includes a hydrophobic material; and / or,

[0040] The first direction X and the second direction Y form an angle, and the range of the included angle α is: 0° < α < 180°. Optionally, the included angle is 90°.

[0041] The pixel opening 300, when projected onto the horizontal plane, is one of a circle, an ellipse, or a near-ellipse shape. This avoids right-angled designs at the corners of the pixel opening 300, which could lead to thinner film thickness in the right-angled areas. This improves the roughness of the film during fabrication, prevents thinner film thickness in the right-angled areas, and enhances the overall uniformity of the film. The first pixel barrier 100 is made of a hydrophilic material, while the second pixel barrier 200 is made of a hydrophobic material. Using different materials allows the ink to spread evenly within the pixel opening 300 during the printing process of the display panel, improving film uniformity and thus enhancing the device's luminous efficiency. The angle α between the first direction X and the second direction Y determines the orientation of the array of multiple first pixel barriers 100 and multiple second pixel barriers 200. The first pixel barrier 100 and the second pixel barrier 200 are arranged perpendicularly to each other, which is beneficial to the formation of the pixel opening 300 and the arrangement of the pixel opening 300 in an array to form a li ne bank structure, thereby improving the aperture ratio and resolution of the entire display panel, increasing brightness, reducing power consumption, improving color performance, and providing clearer and more delicate images.

[0042] It is understood that the included angle α can be any one of 0°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 180°, or a range formed between any two of these values.

[0043] Furthermore, the elliptical shape can include an egg shape, a rectangle with rounded corners, or other non-circular curved shapes with a width different from its height. When the angle α between the first direction X and the second direction Y is 90 degrees, each row and each column is perpendicular to each other, such that the first pixel barrier 100 and the second pixel barrier 200 also intersect each other perpendicularly.

[0044] To elaborate further, hydrophilicity refers to the tendency of a material surface to interact with a liquid (such as water), exhibiting good wettability and spreading out on the material surface to form a thin layer rather than forming spherical droplets; hydrophobicity refers to the property of a material surface not being easily wetted by a liquid (such as water), and the material surface tends to repel water or other solvents, causing the liquid to tend to form spherical droplets rather than spread out on the surface.

[0045] In one embodiment, the hydrophobic material is a fluorinated photoresist material. Optionally, the fluorinated photoresist material is selected from one or more of polyhexafluoropropylene, fluorinated poly(p-xylene), fluorinated polysiloxane, fluorinated polyimide, and fluorinated polyamide; and / or,

[0046] The hydrophilic material is selected from one or more of polyimide, polysiloxane, polymethyl methacrylate, polybutyl methacrylate, polycyclohexyl methacrylate, and polystyrene.

[0047] The second pixel barrier 200 can prevent ink droplets from deviating from the pixel opening 300, prevent ink from spreading on the pixel barrier, avoid color mixing between adjacent pixels, and also prevent ink accumulation and residue, avoiding ink residue on the upper surface of the second pixel barrier 200, thus ensuring transmittance in the area. The first pixel barrier 100, on the other hand, has an attractive effect on the ink, making the contact angle between the ink and the pixel barrier smaller. Even after the ink retracts, it can still ensure uniformity within the pixel opening 300, which is beneficial to improving the luminous efficiency of the display panel and enhancing the performance of the display panel.

[0048] As attached Figure 1 Appendix Figure 3 and attached Figure 9 As shown, in one embodiment, the first pixel barrier 100 is provided with a plurality of recessed portions 1 spaced apart along or away from the second direction Y. The recessed portions 1 are arc-shaped. Two second pixel barriers 200, together with one recessed portion 1 of one first pixel barrier 100 and another recessed portion 1 of the other first pixel barrier 100, together form a pixel opening 300; and / or,

[0049] The width D1 of the recess 1 in the first direction X is 20-300 μm;

[0050] The depth H of the recess 1 in the second direction Y is 10-150 μm.

[0051] This application provides a recessed portion 1 on the first pixel partition 100, making the corners of the pixel opening 300 arc-shaped, thus avoiding the problem of the right-angled corners of the pixel opening 300 being thinner in the right-angled area. The uniformity of its morphology is shown in the attached figure. Figure 9 As shown, the blue portion accounts for only 1.75% of the pixel aperture area, the red portion accounts for only 10%, and the green portion accounts for 88.2%. The film thickness of the blue portion is less than 101 nm, the film thickness of the green portion is 101-111 nm, and the film thickness of the red portion is greater than 111 nm. This improves the roughness of the film during fabrication, prevents the film thickness from being too thin in the right-angle area, and improves the overall uniformity of the film. At the same time, the edges of the first pixel barrier 100 or the second pixel barrier 200 do not need to be extended outward, which increases the aperture ratio and resolution of the entire display panel, increases brightness, reduces power consumption, improves color performance, and provides a clearer and more delicate image.

[0052] Furthermore, when forming one pixel opening 300, two second pixel barriers 200 and two first pixel barriers 100 are required. One of the first pixel barriers 100 utilizes a recess 1 from one of its recesses, and the other utilizes a recess 1 from the other first pixel barrier 100. By using an arc-shaped recess 1, when multiple first pixel barriers and multiple second pixel barriers intersect to form multiple pixel openings, the arc-shaped recess 1 is directly combined with the second pixel barriers 200, eliminating the need to process the corners of the pixel opening 300. This avoids the problem of difficulty in processing the corners of the pixel opening 300 formed when the first pixel barriers 100 and the second pixel barriers 200 are vertically offset or not on the same plane.

[0053] It is understood that the width D1 of the recess 1 in the first direction X can be any one of the following values ​​or a range formed between any two values: 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, 100um, 110um, 120um, 130um, 140um, 150um, 160um, 170um, 180um, 190um, 200um, 210um, 220um, 230um, 240um, 250um, 260um, 270um, 280um, 290um, and 300um. The depth H of the recess 1 in the second direction Y can be any one of 10um, 20um, 30um, 40um, 50um, 60um, 70um, 80um, 90um, 100um, 110um, 120um, 130um, 140um, 150um or a range formed between any two values.

[0054] Furthermore, by measuring the length between the two furthest points in the forward projection of the recess 1 onto the substrate along the first direction X, the width D1 of the recess 1 in the first direction can be obtained. Similarly, by measuring the length between the two furthest points in the forward projection of the recess 1 onto the substrate along the second direction Y, the depth H of the recess 1 in the second direction Y can be obtained. In this embodiment, the recess 1 is semi-circular, that is, the width D1 of the recess 1 in the first direction X is the diameter of the recess 1, and the maximum depth of the recess 1 in the second direction Y is the radius of the recess 1.

[0055] Furthermore, the first pixel barrier 100 and the second pixel barrier 200 extend in the first direction X, such that the first pixel barrier 100 and the second pixel barrier 200 are respectively linear structures. The linear structures of the first pixel barrier 100 and the second pixel barrier 200 are easy to manufacture and pattern, which is beneficial to the forming of the recessed portion 1 and the overlapping portion 2, and also helps to maintain interface stability and reduce problems caused by interface instability.

[0056] Furthermore, in one embodiment, the first pixel barrier 100 is further provided with an overlapping portion 2 located between the two recesses 1, and the second pixel barrier 200 is stacked on the overlapping portion 2.

[0057] This facilitates the preparation of the second pixel barrier 200 and allows for the formation of several pixel openings 300 in the second direction Y, which is convenient for subsequent printing processes to manufacture the display panel, improving production efficiency and device performance, and helping to realize the processing of large-size display panels.

[0058] As attached Figure 7 As shown, in this embodiment, multiple first pixel barriers 100 with linear structures are arranged in multiple rows, and second pixel barriers 200 arranged in multiple columns are partially stacked on the overlapping portion 2 of the first pixel barriers 100. That is, the overlapping portion 2 is the area where the first pixel barriers 100 and the second pixel barriers 200 intersect and overlap.

[0059] Furthermore, in this embodiment, the end face of the overlapping portion 2 is planar, that is, the corners of the overlapping portion 2 are not rounded. The planar structure provides a relatively uniform contact surface for the overlapping portion of the first pixel barrier 100 and the second pixel barrier 200. The interface between the first pixel barrier 100 and the second pixel barrier 200 is relatively clear, which helps to maintain the stability of the interface.

[0060] In one embodiment, the thickness T1 of the first pixel barrier 100 is 0.5-1.5 μm; and / or,

[0061] The thickness T2 of the second pixel barrier 200 is 0.8-2 μm.

[0062] The thickness T2 of the second pixel barrier 200 is greater than the thickness T1 of the first pixel barrier 100. The second pixel barrier 200 can prevent ink droplets from deviating from the pixel opening 300, prevent ink from spreading on the pixel barrier, avoid color mixing between adjacent pixels, and also prevent ink accumulation and residue, thus ensuring the transmittance in the area. The first pixel barrier 100, on the other hand, has an attractive effect on the ink, making the contact angle between the ink and the pixel barrier smaller. Even after the ink retracts, it can still ensure the uniformity within the pixel opening 300, which is beneficial to improving the luminous efficiency of the display panel and enhancing the performance of the display panel.

[0063] Furthermore, the thickness T1 of the first pixel barrier 100 and the thickness T2 of the second pixel barrier 200 refer to the height of the first pixel barrier 100 and the second pixel barrier 200 in the direction away from the substrate 3.

[0064] It is understood that the thickness T1 of the first pixel barrier 100 can be any one of 0.5um, 0.6um, 0.7um, 0.8um, 0.9um, 1.0um, 1.1um, 1.2um, 1.3um, 1.4um, or 1.5um, or a range formed between any two values. The thickness T2 of the second pixel barrier 200 can be any one of 0.8um, 0.9um, 1.0um, 1.1um, 1.2um, 1.3um, 1.4um, 1.5um, 1.6um, 1.7um, 1.8um, 1.9um, or 2.0um, or a range formed between any two values.

[0065] Furthermore, the height of the second pixel partitions 200 located on both sides of the pixel opening 300 is greater than the height of the first pixel partition 100. The second pixel partitions 200 on both sides form a fence. During inkjet printing, the inkjet printing nozzles only need to spray ink along the length of the second pixel partitions 200, without being limited by the different aperture ratios of different pixel areas, the accuracy of inkjet printing, or the volume accuracy of ink droplets. When manufacturing display devices using inkjet printing technology, areas with different pixel distribution densities on the display panel can be processed simultaneously, ensuring accuracy while saving printing time, thus solving the problem of inkjet printing process fabrication. To address the problem of not being able to process display panels with different pixel distribution densities simultaneously, this invention improves the production efficiency, stability, and display yield of inkjet-printed display panels, and enhances the performance of optoelectronic devices. The first pixel barrier 100, made of hydrophilic material, attracts ink, resulting in a smaller contact angle between the ink and the pixel barrier. Even after the ink retracts, the uniformity within the pixel opening 300 is maintained. The ink gradually shrinks within the pixel opening 300 until it is completely dried and forms a film, creating a functional layer with good uniformity. This uniform functional layer has better light-emitting performance and stability, thereby improving the display effect and lifespan of the light-emitting device.

[0066] In one embodiment, the width D3 of the first pixel barrier 100 in the second direction Y is 5-100 μm; and / or,

[0067] The width D4 of the second pixel barrier 200 in the first direction X is 5-100um.

[0068] Choose an appropriate width to avoid the first pixel barrier 100 or the second pixel barrier 200 being too wide, which would lead to a decrease in aperture ratio. At the same time, avoid the first pixel barrier 100 or the second pixel barrier 200 being too narrow, which could easily cause bridging and result in color mixing.

[0069] Furthermore, by measuring the length between the two furthest points in the forward projection of the first pixel barrier 100 onto the substrate along the second direction Y, the width D3 of the first pixel barrier 100 in the second direction Y can be obtained. Similarly, by measuring the length between the two furthest points in the forward projection of the second pixel barrier 200 onto the substrate along the first direction X, the width D4 of the second pixel barrier 200 in the first direction X can be obtained.

[0070] In one embodiment, the display panel further includes a substrate 3, on which a plurality of first pixel barriers 100 and a plurality of second pixel barriers 200 are disposed. In the overlapping area of ​​the first pixel barriers 100 and the second pixel barriers 200, the second pixel barriers 200 are located on the side of the first pixel barriers 100 away from the substrate 3.

[0071] The substrate 3 supports the first pixel barrier 100 and the second pixel barrier 200. The substrate 3 can be a rigid substrate, and the material of the rigid substrate can be glass or polymethyl methacrylate, etc. The substrate 3 can also be a flexible substrate, and the material of the flexible substrate can be polyethylene terephthalate, polyethylene naphthalate, ultrathin glass, or polyimide, etc.

[0072] Example 2

[0073] Example 2 is basically the same as Example 1, except that the end face of the overlapping part 2 is curved.

[0074] As attached Figure 1 To be continued Figure 2 and attached Figure 4 As shown, in one embodiment, the corners of the overlapping portion 2 are arc-shaped; and / or,

[0075] The width D2 of the overlapping portion 2 in the first direction X is greater than 10 μm and less than 20 μm; and / or,

[0076] The width D4 of the second pixel partition 200 in the first direction X is less than or equal to the width D2 of the overlapping portion 2 in the first direction X.

[0077] The arc-shaped structure can further enhance the arc at the corners of the pixel opening 300, avoiding right angles caused by overlap, which could lead to problems such as thinner film thickness in the right-angle region. Its morphological uniformity is shown in the attached figure. Figure 9 As shown, the blue portion accounts for only 1.75% of the pixel aperture area, the red portion accounts for only 10%, and the green portion accounts for 88.2%. The film thickness of the blue portion is less than 101 nm, the film thickness of the green portion is 101-111 nm, and the film thickness of the red portion is greater than 111 nm. This improves the roughness of the film during fabrication, further prevents the film thickness from being too thin in the right-angle area, and improves the overall uniformity of the film. The width of the second pixel barrier 200 is less than or equal to the width of the overlapping portion 2. The edge of the second pixel barrier 200 does not need to be extended outward, which improves the aperture ratio and resolution of the entire display panel, increases brightness, reduces power consumption, enhances color performance, and provides a clearer and more delicate image.

[0078] It is understood that the width of the overlapping portion 2 can be any one of 10um, 11um, 12um, 13um, 14um, 15um, 16um, 17um, 18um, 19um, or 20um, or a range formed between any two values.

[0079] In this embodiment, multiple first pixel barriers 100 with linear structures are arranged in multiple rows, and second pixel barriers 200 arranged in multiple columns are partially stacked on the overlapping portion 2 of the first pixel barriers 100. That is, the overlapping portion 2 is the area where the first pixel barriers 100 and the second pixel barriers 200 intersect and overlap.

[0080] Example 3

[0081] As attached Figure 1 To be continued Figure 2 and attached Figure 5 As shown, Embodiment 3 is basically the same as Embodiments 1 and 2, except that in Embodiments 1 and 2, the first pixel barrier 100 and the second pixel barrier 200 are respectively linear structures, while in Embodiment 3, the first pixel barrier 100 is configured as a block structure first barrier unit 101, and the second pixel barrier 200 is linear. Also, in Embodiment 3, the first pixel barrier 100 does not have an overlapping portion.

[0082] Furthermore, in one embodiment, the first pixel barrier 100 includes a plurality of spaced-apart first barrier units 101, each first barrier unit 101 having a recess 1, and two second pixel barriers 200 and two first barrier units 101 enclosing each other to form a pixel opening 300.

[0083] The first pixel barrier 100 has a block structure, and the second pixel barrier 200 has a linear structure. The first pixel barrier 100 is disposed between the two second pixel barriers 200. The block structure of the first barrier unit 101 omits the overlapping part, which can reduce the material, simplify the manufacturing process, and reduce the manufacturing cost.

[0084] As attached Figure 8 As shown, in this embodiment, multiple first barrier units 101 of block structure are arrayed in the first direction X, and the second pixel barriers 200 arranged in multiple columns are disposed in the barrier space 102 between two first barrier units 101. That is, the second pixel barriers 200 are not stacked on the first barrier units 101 or the second pixel barriers 200 are only stacked on a small part of the first barrier units 101. In other words, in embodiment three, there is no overlapping area as in embodiment one and embodiment two.

[0085] Furthermore, when forming one pixel opening 300, two second pixel barriers 200 and two first pixel barriers 100 are required, and one of the recesses 1 in one first pixel barrier 100 and one of the recesses 1 in the other first pixel barrier 100 are used.

[0086] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A display panel, characterized in that, The substrate includes a plurality of first pixel barriers disposed along a first direction and a plurality of second pixel barriers disposed along a second direction. The plurality of first pixel barriers and the plurality of second pixel barriers intersect each other to form a plurality of pixel openings. The forward projection of the pixel openings on the substrate is one of a circle, an ellipse, or a quasi-ellipse.

2. The display panel according to claim 1, characterized in that, The corners of the pixel opening are arc-shaped; and / or, The material of the first pixel barrier includes a hydrophilic material, and the material of the second pixel barrier includes a hydrophobic material; and / or, The first direction and the second direction form an angle, and the range of the included angle α is: 0° < α < 180°. Optionally, the included angle is 90°.

3. The display panel according to claim 2, characterized in that, The hydrophobic material is selected from fluorinated photoresist materials. Optionally, the fluorinated photoresist material is selected from one or more of polyhexafluoropropylene, fluorinated poly(p-xylene), fluorinated polysiloxane, fluorinated polysiloxane, and fluorinated polyamide; and / or, The hydrophilic material is selected from one or more of polyimide, polysiloxane, polymethyl methacrylate, polybutyl methacrylate, polycyclohexyl methacrylate, and polystyrene.

4. The display panel according to claim 1, characterized in that, The first pixel barrier is provided with a plurality of recessed portions that are recessed along or away from the second direction. The recessed portions are arc-shaped. Two second pixel barriers, a recessed portion of one first pixel barrier, and a recessed portion of another first pixel barrier together enclose and form a pixel opening. And / or, The width of the recess in the first direction is 20-300 μm; The depth of the recess in the second direction is 10-150 μm.

5. The display panel according to claim 4, characterized in that, The first pixel partition is further provided with an overlapping portion located between the two recesses, and the second pixel partition is stacked on the overlapping portion.

6. The display panel according to claim 5, characterized in that, The corners of the overlapping portion are arc-shaped; and / or, The width of the overlapping portion in the first direction is greater than 10 μm and less than 20 μm; and / or, The width of the second pixel partition in the first direction is less than or equal to the width of the overlapping portion in the first direction.

7. The display panel according to claim 1, characterized in that, The first pixel barrier includes a plurality of spaced-apart first barrier units, each first barrier unit having a recessed portion, and two second pixel barriers and two first barrier units enclosing each other to form a pixel opening.

8. The display panel according to any one of claims 1-7, characterized in that, The thickness of the first pixel barrier is 0.5-1.5 μm; and / or, The thickness of the second pixel barrier is 0.8-2 μm.

9. The display panel according to any one of claims 1-7, characterized in that, The width of the first pixel barrier in the second direction is 5-100 μm; and / or, The width of the second pixel barrier in the first direction is 5-100um.

10. The display panel according to any one of claims 1-7, characterized in that, The display panel further includes a substrate, and a plurality of first pixel barriers and a plurality of second pixel barriers are disposed on the substrate. In the overlapping area of ​​the first pixel barriers and the second pixel barriers, the second pixel barriers are located on the side of the first pixel barriers that is away from the substrate.

Images