Display panel and display device

Abstract

The application relates to a display panel and a display device. The display panel comprises a display substrate, a light shielding layer, a color filter layer and an intermediate layer. The light shielding layer is arranged on the display substrate, and the light shielding layer has a plurality of filter openings. The color filter layer comprises a plurality of filter units arranged in the corresponding filter openings. The intermediate layer comprises a plurality of intermediate portions, and each intermediate portion is arranged at least between the filter unit and the sidewall of the corresponding filter opening. The intermediate portion can be used to make the corresponding filter unit more firmly arranged on the light shielding layer, thereby reducing the probability of the filter unit peeling off the light shielding layer, reducing the probability of the display panel appearing red phenomenon, and improving the display effect of the display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display panels, in particular to a display panel and a display device. BACKGROUND

[0002] In the field of display, with the development of flexible materials and the demand for diversified forms of display terminal products, flexible screen products such as folding (including inner folding, outer folding, etc.), curling, wearable, etc. are widely concerned. Based on this, higher requirements are put forward for the display effect of the display panel, therefore, how to improve the display effect of the display panel is one of the future development trends of the display panel. SUMMARY

[0003] Based on this, it is necessary to provide a display panel and a display device capable of improving the display effect.

[0004] According to a first aspect of the present application, a display panel is provided, comprising:

[0005] a display substrate;

[0006] a light shielding layer disposed on the display substrate, the light shielding layer having a plurality of light filtering openings;

[0007] a color filter layer comprising a plurality of filter units disposed in the corresponding light filtering openings; and

[0008] an intermediate layer comprising a plurality of intermediate portions, each intermediate portion being disposed at least between the filter unit and the sidewall of the corresponding light filtering opening.

[0009] In one embodiment, the plurality of filter units comprises a plurality of first filter units, a plurality of second filter units and a plurality of third filter units; the first filter units, the second filter units and the third filter units filter light of different colors;

[0010] The plurality of intermediate portions comprises a plurality of first intermediate portions corresponding one-to-one to the plurality of first filter units, the first intermediate portions being disposed at least between the corresponding first filter units and the sidewalls of the corresponding light filtering openings;

[0011] Optionally, one of the second filter units and the third filter units is a blue filter unit, and the other of the second filter units and the third filter units is a red filter unit.

[0012] In one embodiment, the plurality of intermediate portions further comprises:

[0013] a plurality of second intermediate portions corresponding one-to-one to the plurality of second filter units, the second intermediate portions being disposed between the corresponding second filter units and the sidewalls of the corresponding light filtering openings; and / or

[0014] a plurality of third intermediate portions corresponding to the plurality of third filter units, the third intermediate portion being arranged between the corresponding third filter unit and the sidewall of the corresponding filter opening;

[0015] Optionally, the first intermediate portion and the second intermediate portion are arranged apart from each other.

[0016] Optionally, the first intermediate portion and the third intermediate portion are arranged apart from each other.

[0017] Optionally, the first intermediate portion, the second intermediate portion and the third intermediate portion are arranged apart from each other in pairs.

[0018] Optionally, the first intermediate portion and the second intermediate portion are made of the same material.

[0019] Optionally, the first intermediate portion and the third intermediate portion are made of the same material.

[0020] In one of the embodiments, the first filter unit is not in contact with the light-shielding layer.

[0021] Optionally, the second filter unit is not in contact with the light-shielding layer.

[0022] Optionally, the third filter unit is not in contact with the light-shielding layer.

[0023] In one of the embodiments, the adhesion between the intermediate portion and the material of the light-shielding layer is greater than the adhesion between the filter unit and the material of the light-shielding layer.

[0024] Optionally, the material of the light-shielding layer comprises a first resin and carbon powder, and the material of the filter unit comprises a second resin and pigment.

[0025] The material of the intermediate portion comprises an organic material or an inorganic material.

[0026] Optionally, the material of the intermediate portion comprises silicon oxide or silicon nitride.

[0027] In one of the embodiments,

[0028] The sidewall of the filter opening comprises a first sidewall extending along the thickness direction of the display substrate, and the intermediate portion comprises a first portion arranged on the first sidewall of the corresponding filter opening.

[0029] Optionally, the sidewall of the light filtering opening further comprises a second sidewall connected to the first sidewall along the thickness direction of the display substrate and spaced apart from the first sidewall along the radial direction of the light filtering opening, and a connecting wall connected between the first sidewall and the second sidewall, the connecting wall being spaced apart from the display substrate along a direction perpendicular to the thickness direction of the display substrate.

[0030] The intermediate portion comprises a second portion and a third portion, the second portion being arranged on the second sidewall and the connecting wall of the corresponding light filtering opening and connected to the first portion, and the third portion being connected to the first portion away from the second portion and arranged on the display substrate.

[0031] Optionally, the light filtering unit comprises a first light filtering portion arranged on the third portion, and a second light filtering portion connected to the first light filtering portion, the second light filtering portion being arranged on the second portion away from the connecting wall and surrounding the first light filtering portion.

[0032] In one embodiment, the light filtering opening has a first opening end and a second opening end arranged oppositely, and the second opening end is arranged further away from the display substrate than the first opening end along a direction parallel to the thickness direction of the display substrate.

[0033] A projection of the second opening end on the display substrate falls within a projection of the first opening end on the display substrate.

[0034] Optionally, the sidewall of the light filtering opening is configured to extend outwardly from the second opening end to the first opening end.

[0035] In one embodiment, the intermediate portion comprises:

[0036] a fourth portion arranged on the light shielding layer away from the display substrate; and

[0037] a fifth portion arranged on the sidewall of the light filtering opening and connected to the fourth portion.

[0038] Optionally, the intermediate portion further comprises a sixth portion arranged on the display substrate, the fifth portion being connected between the fourth portion and the sixth portion.

[0039] Optionally, the light filtering unit comprises a third light filtering portion arranged on the sixth portion, and a fourth light filtering portion connected to the third light filtering portion, the fourth light filtering portion being arranged on the fourth portion away from the display substrate and surrounding the third light filtering portion.

[0040] In one embodiment, the display panel comprises a bending area, and the intermediate portion is at least partially located in the bending area.

[0041] According to a second aspect of the present application, a display device is provided, comprising the display panel according to any one of the above embodiments.

[0042] In the technical solution of the present application, since the intermediate part is arranged at least between the corresponding filter unit and the sidewall of the corresponding filter opening, the corresponding filter unit can be arranged more firmly on the light shielding layer by the intermediate part, thereby reducing the probability of the filter unit peeling off from the light shielding layer, and also reducing the probability of the display panel appearing red phenomenon, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 A cross-sectional schematic view of a display panel in an embodiment of the present application is shown.

[0044] Figure 2 A cross-sectional schematic view of a display panel in another embodiment of the present application is shown.

[0045] Figure 3 A cross-sectional schematic view of a display panel in yet another embodiment of the present application is shown.

[0046] Figure 4 A cross-sectional schematic view of a display panel in still another embodiment of the present application is shown.

[0047] Figure 5 A cross-sectional schematic view of a display panel in still another embodiment of the present application is shown.

[0048] Figure 6 A structure schematic view of a display device in an embodiment of the present application is shown.

[0049] Figure 7 A flowchart of a manufacturing method of a display panel in an embodiment of the present application is shown.

[0050] Reference signs:

[0051] 10, display device;

[0052] 100, display panel;

[0053] 110, display substrate; 111, substrate; 112, pixel definition layer; 113, light emitting unit; 1131, first light emitting unit; 1132, second light emitting unit; 1133, third light emitting unit; 114, first encapsulation layer; 115, second encapsulation layer;

[0054] 120, light shielding layer; 1201, filter opening; 12011, first sidewall; 12012, second sidewall; 12013, connecting wall; 1201a, first opening end; 1201b, second opening end;

[0055] 130, color filter layer; 1301, filter unit; 131, first filter unit; 1311, first filter part; 1312, second filter part; 1313, third filter part; 1314, fourth filter part; 132, second filter unit; 133, third filter unit;

[0056] 140, intermediate layer; 1401, intermediate part; 141, first intermediate part; 1411, first portion; 1412, second portion; 1413, third portion; 1414, fourth portion; 1415, fifth portion; 1416, sixth portion; 142, second intermediate part; 143, third intermediate part. DETAILED DESCRIPTION

[0057] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the specific embodiments of the present application will be described in detail below with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways from those described herein without departing from the scope of the present application, and it is understood that similar improvements can be made by those skilled in the art without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0058] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0059] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0060] In the present application, unless specifically defined otherwise, if there is an appearance of the terms "installation", "connection", "connection", "fixation" and the like, these terms should be broadly interpreted. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In the present application, unless specifically defined otherwise, if there is a description of the first feature "on" or "under" the second feature and the like, it means that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0062] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0063] The present application aims to provide a display panel and a display device capable of improving display effect.

[0064] Figure 1 A cross-sectional schematic view of a display panel in an embodiment of the present application is shown, Figure 2 A cross-sectional schematic view of a display panel in another embodiment of the present application is shown, Figure 3 A cross-sectional schematic view of a display panel in another embodiment of the present application is shown.

[0065] Please refer to Figures 1-3 The display panel 100 provided by an embodiment of the present application includes a display substrate 110, a light shielding layer 120, a color filter layer 130 and an intermediate layer 140.

[0066] The display substrate 110 can include a substrate 111 and a plurality of light emitting units 113 arranged on the substrate 111 with a spacing, and can further include a pixel definition layer 112 having a plurality of pixel openings corresponding to the plurality of light emitting units 113, the light emitting units 113 being arranged in the corresponding pixel openings. The pixel openings can correspond to the light emitting units 113 one by one.

[0067] The plurality of light emitting units 113 can emit light rays of different colors. For example, the plurality of light emitting units 113 can include first light emitting units 1131 emitting light rays of different colors, second light emitting units 1132, and third light emitting units 1133. For example, the plurality of light emitting units 113 can include first light emitting units 1131 emitting green light, second light emitting units 1132 emitting red light, and third light emitting units 1133 emitting blue light, or the plurality of light emitting units 113 can include first light emitting units 1131 emitting green light, second light emitting units 1132 emitting blue light, and third light emitting units 1133 emitting red light.

[0068] The material of the light shielding layer 120 can include a light shielding agent, which can be carbon black or black pigment. The light shielding layer 120 can be used to reduce the probability of color mixing between adjacent filter units 1301, thereby improving the display effect of the display panel 100.

[0069] The light shielding layer 120 is arranged on the display substrate 110 and has a plurality of filter openings 1201. The color filter layer 130 includes a plurality of filter units 1301 arranged in the corresponding filter openings 1201. The filter units 1301 are used to transmit specific light rays. For example, the filter units 1301 are used to transmit light rays of a single color. Specifically, the filter units 1301 allow the color of the transmitted light rays to be the same as the light emitting color of the corresponding light emitting units 113.

[0070] The intermediate layer 140 includes a plurality of intermediate portions 1401, each of which is arranged at least between the filter unit 1301 and the sidewall of the corresponding filter opening 1201.

[0071] The intermediate portions 1401 can be arranged between the filter units 1301 and the sidewalls of the corresponding filter openings 1201, or a part of the intermediate portions 1401 can be arranged between the filter units 1301 and the sidewalls of the corresponding filter openings 1201. No specific limitation is made herein.

[0072] Since the intermediate portion 1401 is arranged at least between the light filtering unit 1301 and the sidewall of the corresponding light filtering opening 1201, the corresponding light filtering unit 1301 and the light shielding layer 120 can be closely adhered by the intermediate portion 1401. The adhesion between the light filtering unit 1301 and the material of the intermediate portion 1401 is greater than the adhesion between the light filtering unit 1301 and the material of the light shielding layer 120, so that the corresponding light filtering unit 1301 can be more firmly arranged on the light shielding layer 120 by the intermediate portion 1401, thereby reducing the probability of the light filtering unit 1301 peeling off from the light shielding layer 120, reducing the probability of the display panel 100 appearing red phenomenon, and improving the display effect of the display panel 100.

[0073] In some embodiments, the plurality of light filtering units 1301 includes a plurality of first light filtering units 131, a plurality of second light filtering units 132, and a plurality of third light filtering units 133, the colors of the light filtered by the first light filtering units 131, the second light filtering units 132, and the third light filtering units 133 are different, and the plurality of intermediate portions 1401 includes a plurality of first intermediate portions 141 corresponding to the plurality of first light filtering units 131, the first intermediate portion 141 is arranged at least between the corresponding first light filtering unit 131 and the sidewall of the corresponding light filtering opening 1201, wherein the first light filtering unit 131 is a green light filtering unit, and the adhesion between the first light filtering unit 131 and the material of the first intermediate portion 141 is greater than the adhesion between the first light filtering unit 131 and the material of the light shielding layer 120.

[0074] It is found through research that the adhesion between the green light filtering unit and the material of the light shielding layer 120 is low. Therefore, the first intermediate portion 141 is arranged at least between the corresponding first light filtering unit 131 and the sidewall of the corresponding light filtering opening 1201, so that the corresponding green light filtering unit can be more firmly arranged on the light shielding layer 120 by the first intermediate portion 141, thereby reducing the probability of the green light filtering unit peeling off from the light shielding layer 120, reducing the probability of the display panel 100 appearing red phenomenon, and improving the display effect of the display panel 100.

[0075] Optionally, one of the second light filtering unit 132 and the third light filtering unit 133 is a blue light filtering unit, and the other of the second light filtering unit 132 and the third light filtering unit 133 is a red light filtering unit.

[0076] That is, the second filter unit 132 can be a blue filter unit, and the third filter unit 133 can be a red filter unit. Correspondingly, the second light emitting unit 1132 can be a blue light emitting unit, and the third light emitting unit 1133 can be a red light emitting unit. Alternatively, the second filter unit 132 can be a red filter unit, and the third filter unit 133 can be a blue filter unit. Correspondingly, the second light emitting unit 1132 can be a red light emitting unit, and the third light emitting unit 1133 can be a blue light emitting unit.

[0077] In this way, the first filter unit 131, the second filter unit 132, and the third filter unit 133 can be used to filter three colors of light respectively to realize color display.

[0078] In some embodiments, the plurality of intermediate portions 1401 further include a plurality of second intermediate portions 142, the plurality of second intermediate portions 142 correspond to the plurality of second filter units 132 one-to-one, and the second intermediate portion 142 is arranged between the corresponding second filter unit 132 and the sidewall of the corresponding filter opening 1201. The adhesion between the material of the second filter unit 132 and the second intermediate portion 142 is greater than the adhesion between the material of the second filter unit 132 and the light shielding layer 120.

[0079] In this way, the second intermediate portion 142 can be used to make the corresponding second filter unit 132 more firmly arranged on the light shielding layer 120, thereby reducing the probability of the second filter unit 132 peeling off from the light shielding layer 120, and also reducing the probability of the display panel 100 appearing red phenomenon, thereby improving the display effect of the display panel 100.

[0080] Optionally, the first intermediate portion 141 and the second intermediate portion 142 are arranged apart from each other.

[0081] In this way, the probability of color mixing between the first filter unit 131 on the first intermediate portion 141 and the second filter unit 132 on the second intermediate portion 142 can be reduced, thereby facilitating the improvement of the display effect of the display panel 100.

[0082] Optionally, the first intermediate portion 141 and the second intermediate portion 142 are made of the same material.

[0083] Optionally, the first intermediate portion 141 and the second intermediate portion 142 have the same shape and the same structure.

[0084] In this way, the first intermediate portion 141 and the second intermediate portion 142 can be conveniently formed in the same manufacturing process, thereby improving the manufacturing efficiency of the display panel 100.

[0085] In some embodiments, the plurality of intermediate portions 1401 further comprises a plurality of third intermediate portions 143, the plurality of third intermediate portions 143 corresponding to the plurality of third filter units 133 one-to-one, the third intermediate portion 143 being arranged between the corresponding third filter unit 133 and the sidewall of the corresponding filter opening 1201; the adhesion between the third filter unit 133 and the material of the third intermediate portion 143 is greater than the adhesion between the third filter unit 133 and the material of the light shielding layer 120.

[0086] In this way, the third filter unit 133 can be more firmly arranged on the light shielding layer 120 by the third intermediate portion 143, thereby reducing the probability of the third filter unit 133 peeling off from the light shielding layer 120, and also reducing the probability of the display panel 100 appearing red phenomenon, thereby improving the display effect of the display panel 100.

[0087] Optionally, the first intermediate portion 141 and the third intermediate portion 143 are arranged apart from each other.

[0088] In this way, the probability of color mixing between the first filter unit 131 on the first intermediate portion 141 and the third filter unit 133 on the third intermediate portion 143 can be reduced, thereby facilitating the improvement of the display effect of the display panel 100.

[0089] Optionally, the first intermediate portion 141 and the third intermediate portion 143 are made of the same material.

[0090] Optionally, the first intermediate portion 141 and the third intermediate portion 143 are of the same shape and have the same structure.

[0091] In this way, the first intermediate portion 141 and the third intermediate portion 143 can be conveniently formed in the same manufacturing process, thereby improving the manufacturing efficiency of the display panel 100.

[0092] In some embodiments, the plurality of intermediate portions 1401 comprises a plurality of the above-mentioned first intermediate portions 141, a plurality of the above-mentioned second intermediate portions 142, and a plurality of the above-mentioned third intermediate portions 143.

[0093] Thus, the first filter unit 131 can be arranged on the sidewall of the corresponding filter opening 1201 more firmly by the first intermediate portion 141, so as to reduce the probability of the first filter unit 131 being peeled off from the light shielding layer 120, and the probability of the display panel 100 appearing red phenomenon can be reduced, and the display effect of the display panel 100 can be improved.

[0094] Optionally, the first intermediate portion 141, the second intermediate portion 142 and the third intermediate portion 143 are arranged in pairs with intervals.

[0095] Thus, the probability of color mixing between the first filter unit 131 on the first intermediate portion 141, the second filter unit 132 on the second intermediate portion 142 and the third filter unit 133 on the third intermediate portion 143 can be reduced, and the display effect of the display panel 100 can be improved.

[0096] In some embodiments, the first filter unit 131 is not in contact with the light shielding layer 120.

[0097] It can be understood that the first filter unit 131 is not in contact with the light shielding layer 120 by the first intermediate portion 141, so that the adhesion of the first filter unit 131 arranged on the sidewall of the corresponding filter opening 1201 can be improved by the first intermediate portion 141, the probability of the display panel 100 appearing red phenomenon can be reduced, and the display effect of the display panel 100 can be improved.

[0098] In some embodiments, the second filter unit 132 is not in contact with the light shielding layer 120.

[0099] It can be understood that the second filter unit 132 is not in contact with the light shielding layer 120 by the second intermediate portion 142, so that the adhesion of the second filter unit 132 arranged on the sidewall of the corresponding filter opening 1201 can be improved by the second intermediate portion 142, the probability of the display panel 100 appearing red phenomenon can be reduced, and the display effect of the display panel 100 can be improved.

[0100] In some embodiments, the third filter unit 133 is not in contact with the light shielding layer 120.

[0101] It can be understood that the third filter unit 133 and the light shielding layer 120 are not in contact through the third intermediate part 143, and the third intermediate part 143 can be used to improve the adhesion of the third filter unit 133 on the side wall of the corresponding filter opening 1201, and the probability of red phenomenon of the display panel 100 can be reduced, and the display effect of the display panel 100 can be improved.

[0102] In some embodiments, the first filter unit 131 and the light shielding layer 120 are not in contact, the second filter unit 132 and the light shielding layer 120 are not in contact, and the third filter unit 133 and the light shielding layer 120 are not in contact.

[0103] In this way, the intermediate part 1401 can be used to improve the adhesion of the corresponding filter unit 1301 on the side wall of the corresponding filter opening 1201, and the probability of red phenomenon of the display panel 100 can be reduced, and the display effect of the display panel 100 can be improved.

[0104] In some embodiments, the adhesion between the intermediate part 1401 and the material of the light shielding layer 120 is greater than the adhesion between the filter unit 1301 and the material of the light shielding layer 120.

[0105] Specifically, the adhesion between the first intermediate part 141 and the material of the light shielding layer 120 is greater than the adhesion between the first filter unit 131 and the material of the light shielding layer 120, the adhesion between the second intermediate part 142 and the material of the light shielding layer 120 is greater than the adhesion between the second filter unit 132 and the material of the light shielding layer 120, and the adhesion between the third intermediate part 143 and the material of the light shielding layer 120 is greater than the adhesion between the third filter unit 133 and the material of the light shielding layer 120.

[0106] In this way, the intermediate part 1401 can be used to improve the adhesion of the corresponding filter unit 1301 on the side wall of the corresponding filter opening 1201, that is, the first intermediate part 141 can be used to improve the adhesion of the corresponding first filter unit 131 on the side wall of the corresponding filter opening 1201, the second intermediate part 142 can be used to improve the adhesion of the corresponding second filter unit 132 on the side wall of the corresponding filter opening 1201, and the third intermediate part 143 can be used to improve the adhesion of the corresponding third filter unit 133 on the side wall of the corresponding filter opening 1201, and the probability of the corresponding filter unit 1301 peeling off the light shielding layer can be reduced, and the probability of red phenomenon of the display panel can be reduced, and the display effect of the display panel can be improved.

[0107] In some embodiments, the material of the light shielding layer 120 includes a first resin and carbon powder, the material of the filter unit 1301 includes a second resin and pigment, and the material of the intermediate part 1401 includes an organic material or an inorganic material.

[0108] Optionally, the first resin is a photosensitive resin, such as a first photoresist; and the second resin is a photosensitive resin, such as a second photoresist.

[0109] Since the carbon powder reduces the adhesion of the light shielding layer 120, and the pigment reduces the adhesion of the filter unit 1301, in the present application, by arranging the intermediate part 1401 at least between the filter unit 1301 and the sidewall of the corresponding filter opening 1201, and selecting the material of the intermediate part 1401 to be an organic material or an inorganic material, the contact between the filter unit 1301 and the light shielding layer 120 can be reduced, and the adhesion of the corresponding filter unit 1301 to the sidewall of the corresponding filter opening 1201 can be improved by the intermediate part 1401, thereby reducing the probability of the filter unit 1301 peeling off the light shielding layer 120, and thereby reducing the probability of the display panel 100 appearing red phenomenon, and thereby improving the display effect of the display panel 100.

[0110] In some embodiments, the material of the intermediate part 1401 includes silicon oxide or silicon nitride.

[0111] By selecting the material of the intermediate part 1401 to be silicon oxide or silicon nitride, since the adhesion between silicon oxide and photoresist is high, and the adhesion between silicon nitride and photoresist is high, the adhesion between the material of the intermediate part 1401 and the filter unit 1301 can be improved, and the adhesion between the material of the intermediate part 1401 and the light shielding layer 120 can be improved, thereby facilitating reducing the probability of the filter unit 1301 peeling off the light shielding layer 120, and thereby reducing the probability of the display panel 100 appearing red phenomenon, and thereby improving the display effect of the display panel 100. In addition, by selecting the material of the intermediate part 1401 to be silicon oxide or silicon nitride, the light transmittance of the intermediate part 1401 is high, and does not affect the application of the corresponding filter unit 1301.

[0112] In some embodiments, the sidewall of the filter opening 1201 includes a first sidewall 12011 extending along the thickness direction of the display substrate 110, and the intermediate part 1401 includes a first portion 1411 arranged on the first sidewall 12011 of the corresponding filter opening 1201. In this way, by arranging the first portion 1411 of the intermediate part 1401 on the first sidewall 12011 of the filter opening 1201, the connection between the intermediate part 1401 and the filter opening 1201 is realized, so that the corresponding filter unit 1301 is arranged more firmly on the light shielding layer 120 by the intermediate part 1401, thereby reducing the probability of the filter unit 1301 peeling off the light shielding layer 120, and also reducing the probability of the display panel 100 appearing red phenomenon, and thereby improving the display effect of the display panel 100.

[0113] In some embodiments, referring toFigure 3 As shown, the sidewall of the light filtering opening 1201 includes a first sidewall 12011 and a second sidewall 12012 which are connected along the thickness direction of the display substrate 110 and are spaced apart along the radial direction of the light filtering opening 1201, and a connecting wall 12013 which is connected between the first sidewall 12011 and the second sidewall 12012 and is spaced apart from the display substrate 110 along the thickness direction of the display substrate 110. The intermediate part 1401 includes a first portion 1411 and a second portion 1412 which is connected to the first portion 1411. The first portion 1411 is arranged on the first sidewall 12011 of the corresponding light filtering opening 1201. The second portion 1412 is arranged on the second sidewall 12012 and the connecting wall 12013 of the corresponding light filtering opening 1201.

[0114] It can be understood that the connecting wall 12013 and the second sidewall 12012 form a step. The first sidewall 12011, the second sidewall 12012 and the connecting wall 12013 can be used to increase the contact area between the intermediate part 1401 and the sidewall of the corresponding light filtering opening 1201, thereby increasing the adhesion of the corresponding light filtering unit 1301 arranged on the sidewall of the corresponding light filtering opening 1201, thereby reducing the probability of the light filtering unit 1301 peeling off the light shielding layer 120, and also reducing the probability of the display panel 100 appearing red phenomenon, thereby improving the display effect of the display panel 100.

[0115] In some embodiments, the intermediate part 1401 further includes a third portion 1413 which is connected to the side of the first portion 1411 away from the second portion 1412 and is arranged on the display substrate 110.

[0116] The intermediate part 1401 not only includes the first portion 1411 and the second portion 1412 arranged on the sidewall of the corresponding light filtering opening 1201, but also includes the third portion 1413 arranged on the display substrate 110. The intermediate part 1401 can be used to increase the adhesion of the corresponding light filtering unit 1301 arranged on the sidewall of the corresponding light filtering opening 1201, and also can be used to increase the adhesion of the corresponding light filtering unit 1301 on the display substrate 110, thereby reducing the probability of the light filtering unit 1301 peeling off the light shielding layer 120, and also reducing the probability of the display panel 100 appearing red phenomenon, thereby improving the display effect of the display panel 100.

[0117] In some embodiments, the light filtering unit 1301 includes a first light filtering part 1311 arranged on the third portion 1413, and a second light filtering part 1312 connected to the first light filtering part 1311. The second light filtering part 1312 is arranged on the side of the second portion 1412 away from the connecting wall 12013 and surrounds the first light filtering part 1311.

[0118] Optionally, the second light filtering part 1312 is arranged around the first light filtering part 1311.

[0119] It can be understood that, by using the light filtering unit 1301 including the first light filtering part 1311 and the second light filtering part 1312, the contact area between the intermediate part 1401 and the corresponding light filtering unit 1301 can be increased, the adhesion of the corresponding light filtering unit 1301 to the sidewall of the corresponding light filtering opening 1201 can be improved, and the adhesion of the corresponding light filtering unit 1301 to the display substrate 110 can also be improved, thereby reducing the probability of peeling of the light filtering unit 1301 from the light shielding layer 120.

[0120] In some embodiments, the light filtering opening 1201 has oppositely arranged first and second opening ends 1201a and 1201b, and the second opening end 1201b is arranged farther away from the display substrate 110 than the first opening end 1201a along a direction parallel to the thickness direction of the display substrate 110. The orthographic projection of the second opening end 1201b on the display substrate 110 falls within the range of the orthographic projection of the first opening end 1201a on the display substrate 110.

[0121] It can be understood that, along a direction parallel to the thickness direction of the display substrate 110, the light filtering opening 1201 has a structure that is larger at the top and smaller at the bottom, which can reduce the possibility of the intermediate part 1401 arranged at least on the sidewall of the light filtering opening 1201 from separating from the sidewall of the light filtering opening 1201, thereby reducing the possibility of the light filtering unit 1301 arranged on the intermediate part 1401 from separating from the light filtering opening 1201, thereby reducing the probability of peeling of the light filtering unit 1301 from the light shielding layer 120, thereby reducing the probability of red phenomenon of the display panel 100, and thereby improving the display effect of the display panel 100.

[0122] In some embodiments, the sidewall of the light filtering opening 1201 is configured to extend outwardly from the second opening end 1201b to the first opening end 1201a.

[0123] Specifically, the sidewall of the light filtering opening 1201 can form an angle of 30-60 degrees with the horizontal plane, for example, the sidewall of the light filtering opening 1201 can form an angle of 30 degrees, 45 degrees or 60 degrees with the horizontal plane.

[0124] In this way, the sidewall of the light filtering opening 1201 can limit the movement of the light filtering unit 1301 in the light filtering opening 1201 along a direction parallel to the thickness direction of the display substrate 110, thereby reducing the probability of peeling of the light filtering unit 1301 from the light shielding layer 120, thereby reducing the probability of red phenomenon of the display panel 100, and thereby improving the display effect of the display panel 100.

[0125] In some embodiments, please refer to Figure 4and Figure 5 The intermediate portion 1401 comprises a fourth portion 1414 and a fifth portion 1415 connected with the fourth portion 1414, the fourth portion 1414 is arranged on the side of the light shielding layer 120 away from the display substrate 110, and the fifth portion 1415 is arranged on the sidewall of the light filtering opening 1201.

[0126] The fifth portion 1415 of the intermediate portion 1401 is arranged on the sidewall of the light filtering opening 1201, and the fourth portion 1414 of the intermediate portion 1401 is arranged on the side of the light shielding layer 120 away from the display substrate 110, so that the corresponding light filtering unit 1301 can be better separated from the light shielding layer 120 by the intermediate portion 1401, and the corresponding light filtering unit 1301 and the light shielding layer 120 can not be in contact with each other, thereby the adhesion of the corresponding light filtering unit 1301 arranged on the sidewall of the corresponding light filtering opening 1201 can be improved by the intermediate portion 1401, and the probability of red phenomenon of the display panel 100 can be reduced, thereby the display effect of the display panel 100 can be improved.

[0127] In some embodiments, referring to Figure 4 and Figure 5 The intermediate portion 1401 further comprises a sixth portion 1416 arranged on the display substrate 110, and the fifth portion 1415 is connected between the fourth portion 1414 and the sixth portion 1416.

[0128] The adhesion of the corresponding light filtering unit 1301 arranged on the sidewall of the corresponding light filtering opening 1201 can be improved by the fifth portion 1415 of the intermediate portion 1401, the adhesion of the corresponding light filtering unit 1301 on the light shielding layer 120 can be improved by the fourth portion 1414 and the fifth portion 1415 of the intermediate portion 1401, and the adhesion of the corresponding light filtering unit 1301 on the display substrate 110 can be improved by the sixth portion 1416 of the intermediate portion 1401.

[0129] In the embodiment, the light filtering unit 1301 comprises a third filtering portion 1313 arranged on the sixth portion 1416, and a fourth filtering portion 1314 connected with the third filtering portion 1313, the fourth filtering portion 1314 is arranged on the side of the fourth portion 1414 away from the display substrate 110, and surrounds the third filtering portion 1313.

[0130] Optionally, the fourth filtering portion 1314 surrounds the third filtering portion 1313.

[0131] The contact area between the intermediate portion 1401 and the corresponding light filtering unit 1301 can be increased by the third filtering portion 1313 and the fourth filtering portion 1314 connected with each other, thereby the probability of the light filtering unit 1301 peeling off from the light shielding layer 120 can be reduced.

[0132] In some embodiments, the substrate 111 is a flexible substrate.

[0133] The intermediate portion 1401 can improve the adhesion of the corresponding filter unit 1301 arranged on the sidewall of the corresponding filter opening 1201, thereby reducing the probability of the display panel having the filter unit 1301 peeled off from the light shielding layer 120, and also reducing the probability of the display panel having a red phenomenon, and can significantly improve the problem of the flexible screen body after bending.

[0134] In some embodiments, the display substrate 110 further includes an encapsulation layer, the encapsulation layer includes a first encapsulation layer 114 and a second encapsulation layer 115, the first encapsulation layer 114 is arranged on the side of the pixel definition layer 112 away from the substrate 111 and covers the plurality of light emitting units 113, and the second encapsulation layer 115 is arranged on the side of the first encapsulation layer 114 away from the substrate 111. The light shielding layer 120 is arranged on the side of the second encapsulation layer 115 away from the first encapsulation layer 114.

[0135] Optionally, the material of the first encapsulation layer 114 can be an organic material, and the material of the second encapsulation layer 115 can be an inorganic material.

[0136] The first encapsulation layer 114 and the second encapsulation layer 115 can form double encapsulation for the light emitting unit 113, improve the water vapor blocking ability, and thereby improve the reliability of the display panel 100.

[0137] In some embodiments, the display panel 100 includes a bending area, and the intermediate portion 1401 is at least partially located in the bending area. For example, when the display panel is a folding screen, the intermediate portion 1401 is at least partially located in the bending area of the folding screen.

[0138] Referring to Figure 6 An embodiment of the present application provides a display device 10, which includes the display panel 100 of any of the above embodiments.

[0139] Referring to Figure 7 An embodiment of the present application provides a manufacturing method of a display panel, including the following steps.

[0140] S10, providing a display substrate.

[0141] S20, forming a light shielding layer on the display substrate; the light shielding layer has a plurality of filter openings.

[0142] S30, forming an intermediate layer on the sidewall of the corresponding filter opening; the intermediate layer includes a plurality of intermediate portions.

[0143] S40, forming a corresponding filter unit in each filter opening to obtain a plurality of filter units.

[0144] The adhesion between the light filtering unit and the material of the intermediate part is greater than the adhesion between the light filtering unit and the material of the light shielding layer.

[0145] The intermediate part can make the corresponding light filtering unit more firmly arranged on the light shielding layer, thereby reducing the probability of the light filtering unit peeling off from the light shielding layer of the display panel, and also reducing the probability of the display panel appearing red phenomenon, thereby improving the display effect of the display panel.

[0146] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0147] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A display panel, characterized by, The display substrate comprises: a display substrate; a light-shielding layer disposed on the display substrate; the light-shielding layer has a plurality of light-filtering openings; a color filter layer comprising a plurality of light-filtering units disposed in the corresponding light-filtering openings; and an intermediate layer comprising a plurality of intermediate portions, each of the intermediate portions being disposed at least between the light-filtering unit and the sidewall of the corresponding light-filtering opening; the sidewall of the light-filtering opening comprises a first sidewall extending along the thickness direction of the display substrate, and the intermediate portion comprises a first portion disposed on the first sidewall of the corresponding light-filtering opening; the sidewall of the light-filtering opening further comprises a second sidewall spaced apart from the first sidewall along the thickness direction of the display substrate and disposed along the radial direction of the light-filtering opening, and a connecting wall connected between the first sidewall and the second sidewall, the connecting wall being spaced apart from the display substrate along a direction perpendicular to the thickness direction of the display substrate; the intermediate portion comprises a second portion and a third portion, the second portion being disposed on the second sidewall and the connecting wall of the corresponding light-filtering opening and being connected to the first portion, and the third portion being connected to the side of the first portion away from the second portion and being disposed on the display substrate; the light-filtering unit comprises a first light-filtering portion disposed on the third portion, and a second light-filtering portion connected to the first light-filtering portion, the second light-filtering portion being disposed on the side of the second portion away from the connecting wall and surrounding the first light-filtering portion. The display substrate comprises:

2. A display panel, characterized by, a display substrate; a light-shielding layer disposed on the display substrate; the light-shielding layer has a plurality of light-filtering openings; a color filter layer comprising a plurality of light-filtering units disposed in the corresponding light-filtering openings; and an intermediate layer comprising a plurality of intermediate portions, each of the intermediate portions being disposed at least between the light-filtering unit and the sidewall of the corresponding light-filtering opening; the light-filtering opening has a first opening end and a second opening end disposed oppositely, and compared with the first opening end, the second opening end is disposed farther away from the display substrate along a direction parallel to the thickness direction of the display substrate; the orthographic projection of the second opening end on the display substrate falls within the range of the orthographic projection of the first opening end on the display substrate; the sidewall of the light-filtering opening is configured to extend outwardly and obliquely from the second opening end to the first opening end; the intermediate portion comprises: a fourth portion disposed on the side of the light-shielding layer away from the display substrate; and a fifth portion disposed on the sidewall of the light-filtering opening and connected to the fourth portion; the intermediate portion further comprises a sixth portion disposed on the display substrate, the fifth portion being connected between the fourth portion and the sixth portion; the light-filtering unit comprises a third light-filtering portion disposed on the sixth portion, and a fourth light-filtering portion connected to the third light-filtering portion, the fourth light-filtering portion being disposed on the side of the fourth portion away from the display substrate and surrounding the third light-filtering portion. The plurality of light-filtering units comprises a plurality of first light-filtering units, a plurality of second light-filtering units, and a plurality of third light-filtering units; the colors of the light filtered by the first light-filtering units, the second light-filtering units, and the third light-filtering units are different. ​ ​ 3. The display panel of claim 1 or 2, wherein, ​ The plurality of intermediate portions includes a plurality of first intermediate portions corresponding to the plurality of first filter units, and the first intermediate portions are arranged between the corresponding first filter units and the sidewalls of the corresponding filter openings.

4. The display panel of claim 3, wherein, One of the second filter units and the third filter units is a blue filter unit, and the other of the second filter units and the third filter units is a red filter unit.

5. The display panel of claim 3, wherein, The plurality of intermediate portions further includes: a plurality of second intermediate portions corresponding to the plurality of second filter units, and the second intermediate portions are arranged between the corresponding second filter units and the sidewalls of the corresponding filter openings; a plurality of third intermediate portions corresponding to the plurality of third filter units, and the third intermediate portions are arranged between the corresponding third filter units and the sidewalls of the corresponding filter openings.

6. The display panel of claim 5, wherein, The first intermediate portions and the second intermediate portions are arranged apart from each other.

7. The display panel of claim 5, wherein, The first intermediate portions and the third intermediate portions are arranged apart from each other.

8. The display panel of claim 5, wherein, The first intermediate portions, the second intermediate portions, and the third intermediate portions are arranged apart from each other in pairs.

9. The display panel of claim 5, wherein, The first intermediate portions and the second intermediate portions are made of the same material.

10. The display panel of claim 5, wherein, The first intermediate portions and the third intermediate portions are made of the same material.

11. The display panel of claim 3, wherein, The first filter units and the light-shielding layer are not in contact with each other.

12. The display panel of claim 3, wherein, The second filter units and the light-shielding layer are not in contact with each other.

13. The display panel of claim 3, wherein, The third filter units and the light-shielding layer are not in contact with each other.

14. The display panel of claim 1 or 2, wherein, An adhesion between the intermediate portions and the material of the light-shielding layer is greater than an adhesion between the filter units and the material of the light-shielding layer.

15. The display panel of claim 1 or 2, wherein, The material of the light-shielding layer includes a first resin and carbon powder, and the material of the filter units includes a second resin and pigments. The material of the intermediate portions includes an organic material or an inorganic material.

16. The display panel of claim 1 or 2, wherein, The material of the intermediate portions includes silicon oxide or silicon nitride.

17. The display panel of claim 1 or 2, wherein, The display panel includes a bending area, and the intermediate portions are at least partially located in the bending area.

18. A display device comprising: A display device including the display panel of any one of claims 1-17.

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