Display panel, forming method, and display device

Abstract

The application relates to a display panel, a forming method and a display device. The display panel comprises a driving substrate, a light shielding layer located on one side of the driving substrate, the light shielding layer comprising a first blocking structure and a second blocking structure, the first blocking structure comprising a first opening, the second blocking structure being arranged in the first opening, the thickness of the second blocking structure being smaller than the size of the first blocking structure in a first direction, the first direction being perpendicular to the plane of the driving substrate and pointing to the light-emitting surface of the display panel, a plurality of pixel units, each pixel unit comprising a plurality of light-emitting elements, the light-emitting elements being located in the first opening, and the driving substrate providing driving signals for the light-emitting elements. The application can reduce reflectivity and ensure display effect.

Description

TECHNICAL FIELD

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

[0002] Light emitting elements such as organic light emitting diodes (OLED), mini light emitting diodes (mini LED) and micro light emitting diodes (micro LED) are widely used in the field of display technology.

[0003] In order to better drive the light emitting elements to emit light and realize display, a driving substrate for controlling the light emitting elements needs to be provided. The existing display panel has defects in structural design, so that the overall reflectivity of the display panel is high, which affects the display effect. SUMMARY

[0004] The display panel, the forming method and the display device provided by the embodiments of the present application can reduce reflectivity and ensure display effect.

[0005] In one aspect, the present application provides a display panel, comprising: a driving substrate; a light shielding layer located on one side of the driving substrate, the light shielding layer comprising a first blocking structure and a second blocking structure, the first blocking structure comprising a first opening, and the second blocking structure being located in the first opening, along a first direction, the thickness of the second blocking structure being smaller than the size of the first blocking structure; the first direction being perpendicular to the plane in which the driving substrate is located and pointing to the light emitting surface direction of the display panel; a plurality of pixel units, each pixel unit comprising a plurality of light emitting elements, the light emitting elements being located in the first opening, and the driving substrate providing driving signals for the light emitting elements.

[0006] In another aspect, the present application provides a forming method of a display panel, comprising:

[0007] forming a light shielding layer on one side of the driving substrate, the light shielding layer comprising a first blocking structure and a second blocking structure, the first blocking structure comprising a first opening, and the second blocking structure being located in the first opening, along a first direction, the thickness of the second blocking structure being smaller than the size of the first blocking structure;

[0008] binding the light emitting elements, at least part of the light emitting elements passing through the light shielding layer and being coupled with the driving substrate, the light emitting elements being located in the first opening, so as to form the display panel, wherein the first direction is perpendicular to the plane in which the driving substrate is located and points to the light emitting surface direction of the display panel.

[0009] In yet another aspect, the present application provides a display device comprising the display panel described above.

[0010] The display panel, the forming method and the display device provided by the embodiment of the present application, the display panel comprises a driving substrate, a light shielding layer and a plurality of pixel units, the light shielding layer can be located on one side of the driving substrate, the light shielding layer comprises a first blocking structure and a second blocking structure, the second blocking structure is located in a first opening of the first blocking structure, a plurality of light emitting elements of the pixel unit are arranged in the first opening, the driving substrate can provide a driving signal for the light emitting elements to control the light emitting elements and ensure the display requirement. Since the second blocking structure is arranged in the first opening and the light emitting elements are arranged in the first opening, the area between the light emitting elements can be subjected to light shielding treatment through the first blocking structure, and the area where the light emitting elements are located can be subjected to light shielding treatment through the second blocking structure, so that the reflectivity of the whole display panel is reduced and the display effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0011] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0012] Figure 1 is a top view of a display panel of one embodiment of the present application;

[0013] Figure 2 is Figure 1 is a sectional view along the direction A-A in

[0014] Figure 3 is a sectional view of a display panel of another embodiment of the present application;

[0015] Figure 4 is a sectional view of a display panel of still another embodiment of the present application;

[0016] Figure 5 is a sectional view of a display panel of still another embodiment of the present application;

[0017] Figure 6 is a sectional view of a display panel of still another embodiment of the present application;

[0018] Figure 7 is a top view of a display panel of still another embodiment of the present application;

[0019] Figure 8 is Figure 7 is a sectional view along the direction B-B in

[0020] Figure 9 is a top view of a display panel of still another embodiment of the present application;

[0021] Figure 10 is Figure 9 is a sectional view along the direction C-C in

[0022] Figure 11is a top view of a display panel according to another embodiment of the present application;

[0023] Figure 12 is a top view of a display panel according to another embodiment of the present application;

[0024] Figure 13 is Figure 12 is a sectional view along direction D-D;

[0025] Figure 14 is a sectional view of a display panel according to another embodiment of the present application;

[0026] Figure 15 is a flow chart of a forming method of a display panel according to an embodiment of the present application;

[0027] Figures 16-18 is a structural diagram corresponding to each step of a forming method of a display panel according to an embodiment of the present application;

[0028] Figures 19-20 is a structural diagram corresponding to step S100 of a forming method of a display panel according to an embodiment of the present application;

[0029] Figures 21-22 is a structural diagram corresponding to step S100 of a forming method of a display panel according to another embodiment of the present application.

[0030] wherein:

[0031] 10 - driving substrate; 11 - binding terminal;

[0032] 20 - light shielding layer; 21 - first blocking structure; 211 - first opening; 22 - second blocking structure; 221 - second opening; 222 - third opening;

[0033] 30 - pixel unit; 31 - light emitting element; 311 - light emitting body; 312 - binding terminal; 312a - first end surface; 312b - second end surface; 31a - first color light emitting element; 31b - second color light emitting element; 31c - third color light emitting element;

[0034] 40 - barrier layer;

[0035] 50 - base layer;

[0036] X - first direction.

[0037] In the drawings, the same parts are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0038] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0040] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0041] like Figure 1 as well as Figure 2 As shown, this application embodiment provides a display panel including a driving substrate 10, a light-shielding layer 20, and a plurality of pixel units 30. The light-shielding layer 20 is located on one side of the driving substrate 10 and includes a first blocking structure 21 and a second blocking structure 22. The first blocking structure 21 includes a first opening 211, and the second blocking structure 22 is located in the first opening 211. Along a first direction X, the thickness d1 of the second blocking structure 22 is smaller than the thickness d2 of the first blocking structure 21. The first direction X is perpendicular to the plane where the driving substrate 10 is located and points towards the light-emitting surface of the display panel. The pixel unit 30 includes a plurality of light-emitting elements 31, which are located within the first opening 211. The driving substrate 10 provides driving signals to the light-emitting elements 31.

[0042] Optionally, the light emitting element 31 can include, but is not limited to, at least one of an organic light emitting diode (OLED), a mini LED, and a micro LED.

[0043] The driving substrate 10 can include a substrate and a device layer. The substrate can be flexible or rigid. The device layer can include a plurality of pixel driving circuits. The plurality of pixel driving circuits can be coupled to the plurality of light emitting elements 31. The driving substrate 10 provides driving signals to the light emitting elements 31 to meet the driving requirements of the light emitting elements 31. Optionally, the driving substrate 10 can be provided with a binding terminal 11. The binding terminal 11 is in contact with and coupled to the light emitting element 31.

[0044] The first direction X is perpendicular to the plane of the driving substrate 10 and points to the light emitting surface of the display panel. It can also be understood as the thickness direction of the driving substrate 10. The light shielding layer 20 can be arranged on one side of the driving substrate 10 in the first direction X.

[0045] The number of first openings 211 included in the first blocking structure 21 can be two or more. When the number is two or more, the two or more first openings 211 are arranged at intervals. The second blocking structure 22 can be arranged in each first opening 211.

[0046] In the first direction X, the orthographic projection shape of the first opening 211 can be circular, elliptical, or polygonal. When the polygonal shape is a regular polygon.

[0047] The orthographic projection shape of the outer periphery of the first blocking structure 21 can match the orthographic projection shape of the first opening 211. For example, when the orthographic projection shape of the first blocking structure 21 is circular, the shape of the first opening 211 can also be circular and have the same radial dimension.

[0048] The thickness d1 of the second blocking structure 22 is less than the thickness d2 of the first blocking structure 21. The side of the first blocking structure 21 and the second blocking structure 22 facing the driving substrate 10 in the first direction X can be flush or substantially flush. The side of the first blocking structure 21 away from the driving substrate 10 in the first direction X can protrude the second blocking structure 22.

[0049] The number of pixel units 30 can be set according to the size of the display panel. The number of light emitting elements 31 included in each pixel unit 30 can be three, four, or even more.

[0050] The display panel provided by the embodiment of the present application is characterized in that: the light shielding layer 20 is arranged on one side of the driving substrate 10, and the light shielding layer 20 comprises the first blocking structure 21 and the second blocking structure 22, the second blocking structure 22 is arranged in the first opening 211 of the first blocking structure 21, and the plurality of light emitting elements 31 of the pixel unit 30 are arranged in the first opening 211; the driving substrate 10 can provide driving signals for the light emitting elements 31 to control the light emitting elements 31 and ensure the display requirements. Since the second blocking structure 22 is arranged in the first opening 211, and the light emitting elements 31 are arranged in the first opening 211, the area between the light emitting elements 31 can be subjected to light shielding treatment by the first blocking structure 21, and the area where the light emitting elements 31 are arranged can be subjected to light shielding treatment by the second blocking structure 22, so that the reflectivity of the display panel as a whole is reduced, and the display effect is ensured.

[0051] In some optional embodiments, the display panel provided by the embodiment of the present application is characterized in that: the light emitting element 31 comprises the light emitting body 311 and the wiring terminal 312, the second blocking structure 22 comprises the second opening 221, the wiring terminal 312 is at least partially arranged in the second opening 221 and electrically connected with the driving substrate 10, and the second blocking structure 22 is at least partially arranged between the light emitting body 311 and the driving substrate 10.

[0052] The wiring terminals 312 comprised by the light emitting body 311 can be arranged in pairs, and optionally, when arranged in pairs, the polarities of the wiring terminals 312 arranged in pairs can be opposite.

[0053] The number of the second openings 221 on the second blocking structure 22 can be equal to the total number of the wiring terminals 312 comprised by the light emitting elements 31 arranged in the second blocking structure 22, and of course, the number of the second openings 221 on the second blocking structure 22 can be greater than the total number of the wiring terminals 312 comprised by the light emitting elements 31 arranged in the second blocking structure 22.

[0054] The shape of the second opening 221 can match the shape of the wiring terminal 312, that is, the second blocking structure 22 can be in close contact with the outer circumferential surface of the wiring terminal 312, and of course, the size of the second opening 221 can be greater than the size of the wiring terminal 312, so that a gap is formed between the second blocking structure 22 and the outer circumferential surface of the wiring terminal 312.

[0055] The part of the second blocking structure 22 between the light emitting body 311 and the driving substrate 10 can be in contact with the light emitting body 311, and of course, a gap can be formed between the second blocking structure 22 and the light emitting body 311 in the first direction X.

[0056] The second opening 221 can be provided on the second barrier structure 22 in advance before the light emitting element 31 is bonded with the driving substrate 10. Of course, the second opening 221 can also be formed by the wire terminal 312 piercing the second barrier structure 22 when the light emitting element 31 is bonded with the driving substrate 10.

[0057] The display panel provided by the embodiment of the present application is beneficial to avoiding the wire terminal 312 by providing the second opening 221 on the second barrier structure 22, the light emitting element 31 can be coupled with the driving substrate 10 through the wire terminal 312, and the driving substrate 10 can provide a driving signal for the light emitting element 31. Moreover, by arranging the second barrier structure 22 at least partially between the light emitting body 311 and the driving substrate 10, the coverage area of the light shielding layer 20 on the driving substrate 10 can be further improved, the reflectivity can be effectively reduced, and the display effect can be optimized.

[0058] As shown in Figure 2 In some optional embodiments, the display panel provided by the embodiment of the present application has the wire terminal 312 having opposite first and second end faces 312a and 312b in the first direction X, the first end face 312a is connected with the driving substrate 10, and the second end face 312b is connected with the light emitting body 311. In the first direction X, the cross-sectional area of the wire terminal 312 has an increasing trend.

[0059] In the first direction X, the projection area of the first end face 312a is smaller than the projection area of the second end face 312b. The projection shape of the first end face 312a can be the same as the projection shape of the second end face 312b. For example, the first end face 312a and the second end face 312b can both be circular, and the first end face 312a and the second end face 312b can both be polygonal. Of course, the projection shape of the first end face 312a can be different from the projection shape of the second end face 312b. For example, one of the projection of the first end face 312a and the projection of the second end face 312b can be circular, and the other can be polygonal.

[0060] The display panel provided by the embodiment of the present application has the cross-sectional area of the wire terminal 312 in the first direction X having an increasing trend, so that the wire terminal 312 has a shape of being large at the top and small at the bottom, that is, a sharp end is formed on the side facing the driving substrate 10. When the light emitting element 31 is bonded with the driving substrate 10, the wire terminal 312 in this form can be directly bonded and coupled with the driving substrate 10 after piercing the second barrier structure 22, which can not only ensure the coupling and connection requirement with the driving substrate 10, reduce the reflectivity, but also simplify the forming process of the display panel.

[0061] As shown in Figure 2As shown, in some optional embodiments, the cross-section of the terminal block 312 of the display panel provided in this application gradually increases along the first direction X.

[0062] In other words, the terminal block 312 can be conical, round, or pyramidal in shape.

[0063] The display panel provided in this application embodiment has a terminal 312 in the form described above, which forms a pointed tip on the side facing the driving substrate 10. When it is bonded and coupled to the driving substrate 10, it is convenient to pierce the second blocking structure 22 and reduce the bonding difficulty.

[0064] It is understood that the gradual increase in the cross-section of the terminal 312 along the first direction X is only one possible embodiment.

[0065] like Figure 3 As shown, in some embodiments, the cross-section of the terminal 312 can be gradually increased along the first direction X.

[0066] In other words, the terminal block 312 can be stepped in shape, with a smaller cross-section on the side facing the drive substrate 10. With this arrangement, a relatively small tip can also be formed on the side facing the drive substrate 10, which can pierce the second blocking structure 22 when it is bonded and coupled to the drive substrate 10, reducing the difficulty of bonding.

[0067] It is understood that the display panels provided in the above embodiments of this application are all illustrated by taking the example that the cross-sectional area of ​​the wiring terminal 312 increases along the first direction X. These are some optional embodiments, but are not limited thereto.

[0068] like Figure 4 As shown, in some optional embodiments, the display panel provided in this application embodiment can also make the wiring terminal 312 connected to the driving substrate 10 and the second end face 312b connected to the light-emitting body 311 in the first direction X, and the wiring terminal 312 has a uniform cross-section structure along the thickness direction from the first end face 312a to the second end face 312b.

[0069] Along the first direction X, the orthographic projection area of ​​the first end face 312a can be equal to the orthographic projection area of ​​the second end face 312b. Correspondingly, the orthographic projection shape of the first end face 312a can be the same as the orthographic projection shape of the second end face 312b. For example, both the first end face 312a and the second end face 312b can be circular, or both the first end face 312a and the second end face 312b can be polygonal.

[0070] The display panel provided by the embodiments of the present application can be provided with the corresponding second opening 221 on the second blocking structure 22 in advance before the light emitting element 31 is bound with the driving substrate 10, so that the wiring terminal 312 can be at least partially located in the second opening 221 and bound and coupled with the driving substrate 10. The wiring terminal 312 adopts the above structure, which can also meet the coupling requirement with the driving substrate 10 and ensure that the second blocking structure 22 is at least partially arranged between the light emitting body 311 and the driving substrate 10, thereby reducing the reflectivity.

[0071] As shown in Figure 2 , Figure 3 , in some optional embodiments, the display panel provided by the above embodiments of the present application can be provided with the second opening 221 whose aperture is equal to the outer diameter of the wiring terminal 312. That is, the wall surface of the second blocking structure 22 forming the second opening 221 and the wiring terminal 312 can be in close contact and no gap is reserved therebetween. The above arrangement can reduce the reflectivity of the driving substrate 10 to light and ensure the display effect.

[0072] It can be understood that the aperture of the second opening 221 equal to the outer diameter of the wiring terminal 312 is only one optional embodiment, but is not limited to the above manner.

[0073] As shown in Figure 4 , in some embodiments, the aperture of the second opening 221 can be greater than the outer diameter of the wiring terminal 312, and a gap is formed between the outer circumferential surface of the wiring terminal 312 and the wall surface surrounding the second opening 221. Through the above arrangement, on the basis of reducing the reflectivity requirement of the driving substrate 10 to light, it is also beneficial to plug the wiring terminal 312 into the second opening 221 and bind with the driving substrate 10.

[0074] As shown in Figure 5 , in some optional embodiments, the display panel provided by the above embodiments of the present application can include the first color light emitting element 31a and the second color light emitting element 31b, a first gap M1 is formed between the first color light emitting element 31a and the wall surface of the second opening 221, a second gap M2 is formed between the second color light emitting element 31b and the wall surface of the second opening 221, and the first gap M1 is greater than the second gap M2.

[0075] Exemplarily, the first color light emitting element 31a can be a red light emitting element, and the second color light emitting element 31b can be a green light emitting element. Of course, the first color light emitting element 31a can be a green light emitting element, and the second color light emitting element 31b can be a blue light emitting element. In some embodiments, the first color light emitting element 31a can also be a red light emitting element, and the second color light emitting element 31b can be a blue light emitting element.

[0076] The first gap can be understood as the minimum width formed between the first color light emitting element 31a and the wall surface of the second opening 221.

[0077] The second gap can be understood as the minimum width formed between the second color light emitting element 31b and the wall surface of the second opening 221.

[0078] The display panel provided by the embodiments of the present application can have different size ratios of different color light emitting elements 31 according to light emitting requirements, and when the size of the different color light emitting elements 31 is different according to the light emitting requirements, by limiting the first gap M1 to be greater than the second gap M2, the size of the second opening 221 can be the same, and when the second opening 221 is pre-set on the light shielding layer 20 before the light emitting element 31 is bonded with the driving substrate 10, the size of the second opening 221 can be the same, which is beneficial to one-time molding of the second opening 221.

[0079] In some optional embodiments, the display panel provided by the embodiments of the present application has a ratio of the thickness of the wiring terminal 312 to the thickness of the second blocking structure 22 along the first direction X greater than 1.

[0080] The ratio of the thickness of the wiring terminal 312 to the thickness of the second blocking structure 22 along the first direction X can be any value between 1 and 2, including the end value 2.

[0081] The display panel provided by the embodiments of the present application can ensure that the thickness of the wiring terminal 312 in the first direction X is greater than the thickness of the second blocking structure 22 in the first direction X by making the ratio of the thickness of the wiring terminal 312 to the thickness of the second blocking structure 22 greater than 1. When the thickness of the second blocking structure 22 has a slight deviation during the molding process, the part of the wiring terminal 312 protruding from the second blocking structure 22 can compensate for the deviation during the molding process, ensure the bonding requirement of the light emitting element 31 and the driving substrate 10, and further ensure the stability of the coupling connection between the two.

[0082] As shown in FIG. 1, Figures 1-5 In some optional embodiments, the display panel provided by the embodiments of the present application has a single light emitting element 31 arranged in the first opening 211.

[0083] The number of the first openings 211 can be equal to the total number of the light emitting elements 31 included in each pixel unit 30, and the first openings 211 are arranged one-to-one with the light emitting elements 31, and one light emitting element 31 is arranged in each first opening 211.

[0084] For example, the light emitting element 31 arranged in each first opening 211 can be one of a red light emitting element, a blue light emitting element, a green light emitting element, and a white light emitting element.

[0085] The display panel provided by the embodiment of the present application can separate the light emitting elements 31 from each other by arranging a single light emitting element 31 in each first opening 211, so that the probability of light crosstalk between different light emitting elements 31 can be reduced, and the display effect can be ensured.

[0086] As shown in FIG. 1, Figure 6 In some optional embodiments, the display panel provided by the embodiment of the present application, the pixel unit 30 includes a first color light emitting element 31a, a second color light emitting element 31b, and a third color light emitting element 31c, and along the first direction X, the part of the first barrier structure 21 located between the first color light emitting element 31a and the second color light emitting element 31b has a first height H1, and the part of the first barrier structure 21 located between the second color light emitting element 31b and the third color light emitting element 31c has a second height H2, and the first height H1 is greater than the second height H2.

[0087] For example, the first color light emitting element 31a can be a red light emitting element, the second color light emitting element 31b can be a green light emitting element, and the third color light emitting element 31c can be a blue light emitting element, and along the first direction X, the part of the first barrier structure 21 located between the red light emitting element and the green light emitting element has a first height, and the part of the first barrier structure 21 located between the green light emitting element and the blue light emitting element has a second height, and the first height is greater than the second height.

[0088] Of course, the above examples are optional embodiments, and in some examples, the first color light emitting element 31a can be a green light emitting element, the second color light emitting element 31b can be a red light emitting element, and the third color light emitting element 31c can be a blue light emitting element, and along the first direction X, the part of the first barrier structure 21 located between the green light emitting element and the red light emitting element has a first height, and the part of the first barrier structure 21 located between the red light emitting element and the blue light emitting element has a second height, and the first height is greater than the second height.

[0089] The above two examples are only illustrative examples for better understanding the display panel provided by the embodiment of the present application, and are not limited to the above examples, and can be set according to the specific display requirements of the display panel and the light crosstalk prevention requirements.

[0090] The display panel provided by the embodiment of the present application can reasonably set the height of the first blocking structure 21 in different regions according to the light wavelength of the light emitting elements 31 of different colors, the exit angle of the light after the light emitting element 31 emits light, and the like, and can reasonably plan the height setting of the first blocking structure 21 on the basis of ensuring to meet the light crosstalk prevention.

[0091] As shown in Figure 7 and Figure 8 In some optional embodiments, the display panel provided by the embodiment of the present application has a first region aa and a second region bb, and the pixel unit 30 includes a first color light emitting element 31a and a second color light emitting element 31b. In the first region aa, the first blocking structure 21 between at least one first color light emitting element 31a and the second color light emitting element 31b arranged adjacent to each other has a third height H3 along the first direction X. In the second region bb, the first blocking structure 21 between at least one first color light emitting element 31a and the second color light emitting element 31b arranged adjacent to each other has a fourth height H4. The third height H3 is greater than the fourth height H4.

[0092] For example, the first region can be divided according to the distance from the four peripheral edges of the display panel. For example, the first region can be an edge region, and the second region can be a central region. The first region can be arranged around the second region, and the distance from the first region to the four peripheral edges of the display panel is less than the distance from the second region to the four peripheral edges of the display panel.

[0093] For example, the first region aa and the second region bb can also be divided according to the light transmittance. For example, the light transmittance of the first region aa can be greater than the light transmittance of the second region bb, and the first region aa can be displayed as a CUP region, and the like.

[0094] For example, the first color light emitting element 31a can be a red light emitting element, and the second color light emitting element 31b can be a green light emitting element. Of course, the first color light emitting element 31a can be a green light emitting element, and the second color light emitting element 31b can be a blue light emitting element. In some embodiments, the first color light emitting element 31a can also be a red light emitting element, and the second color light emitting element 31b can be a blue light emitting element.

[0095] The display panel provided by the embodiment of the present application is divided into different regions, and different first blocking structures 21 are arranged in the regions according to the functional requirements of the different regions, so that the functional requirements of the different regions are met on the basis of reducing the reflectivity and light crosstalk.

[0096] It can be understood that the display panel provided by the embodiment of the present application is only some optional embodiments in which a single light emitting element 31 is arranged in each first opening 211, but is not limited to the above manner.

[0097] As shown in Figure 9 and Figure 10 in some other optional embodiments, the display panel provided by the embodiment of the present application is provided with at least two light emitting elements 31 in the first opening 211.

[0098] The number of light emitting elements 31 arranged in each first opening 211 can be two, three or even more.

[0099] The colors of the light emitting elements 31 arranged in the same first opening 211 can be the same, of course, can also be different.

[0100] The two or more light emitting elements 31 arranged in each first opening 211 can be at least one of a red light emitting element, a blue light emitting element, a green light emitting element and a white light emitting element.

[0101] The display panel provided by the embodiment of the present application is provided with at least two light emitting elements 31 in each first opening 211, so that the number of first openings 211 is reduced and the difficulty of forming the light shielding layer 20 is reduced on the basis of ensuring the reflectivity.

[0102] Continuing to refer to Figure 9 and Figure 10 in some optional embodiments, the display panel provided by the embodiment of the present application is provided with at least two light emitting elements 31 in the first opening 211, and the light emitting colors of the at least two light emitting elements 31 are different.

[0103] Exemplarily, the colors of the light emitting elements 31 arranged in the same first opening 211 can be different, for example, the light emitting elements 31 arranged in the same first opening 211 can include the light emitting elements 31 of the same pixel unit 30, and the light emitting elements 31 arranged in the same first opening 211 can include one red light emitting element, one green light emitting element and one blue light emitting element. Of course, in some examples, the light emitting elements 31 arranged in the same opening can also include two red light emitting elements, one green light emitting element and one blue light emitting element.

[0104] The display panel provided by the embodiment of the present application can place each light emitting element 31 of the same pixel unit 30 in the same first opening 211 by making the light emitting colors of at least two light emitting elements 31 arranged in the first opening 211 different. Since each light emitting element 31 of the same pixel unit 30 can realize the light emitting requirement by the color mixing mode, the crosstalk rate requirement is low. Therefore, by the above arrangement, the number of first openings 211 can be reduced, and meanwhile the display quality of the display panel can be ensured.

[0105] As shown in Figure 11 In some optional embodiments, the display panel provided by the embodiment of the present application can also make the light emitting colors of each light emitting element 31 arranged in the first opening 211 the same.

[0106] For example, the light emitting colors of each light emitting element 31 located in the same first opening 211 can be one of red light emitting elements, green light emitting elements and blue light emitting elements.

[0107] The display panel provided by the embodiment of the present application can also meet the requirement of ensuring the display quality of the display panel on the basis of reducing the number of first openings 211, since the crosstalk rate requirement between light emitting elements 31 of the same color is low.

[0108] As shown in Figure 12 and Figure 13 In some optional embodiments, the display panel provided by the embodiment of the present application further includes a barrier wall layer 40. Along the first direction X, the barrier wall layer 40 is arranged on the side of the light shielding layer 20 away from the driving substrate 10 and protrudes the light emitting element 31. Adjacent pixel units 30 are arranged by the barrier wall layer 40.

[0109] The barrier wall layer 40 can be arranged around each pixel unit 30, or can be arranged around the light emitting elements 31 of the same color.

[0110] The display panel provided by the embodiment of the present application can further block the crosstalk between light rays by arranging the barrier wall layer 40, reduce the light crosstalk rate of the display panel, and optimize the display effect.

[0111] In some optional embodiments, the display panel provided by the embodiment of the present application can be arranged such that, along the first direction X, the orthogonal projection of the barrier wall layer 40 on the driving substrate 10 is located in the orthogonal projection of the first blocking structure 21.

[0112] That is, the barrier wall layer 40 can be arranged on the first blocking structure 21 and can extend along the distribution track of the first blocking structure 21.

[0113] The display panel provided by the embodiment of the present application can further improve the probability of light interference of the light emitting element 31 located in the two adjacent first openings 211 and improve the display quality by arranging the blocking wall layer 40 on the first blocking structure 21.

[0114] As shown in the figure, in some optional embodiments, the display panel provided by the embodiment of the present application is provided with at least one light emitting element 31 corresponding to the redundant bit located in the second blocking structure 22, and the redundant bit includes a third opening 222. Figure 14

[0115] The third opening 222 can match the shape and size of the second opening 221.

[0116] The display panel provided by the embodiment of the present application can replace the light emitting element 31 that cannot normally emit light at the second opening 221 by arranging the light emitting element 31 at the third opening 222 and coupling it with the driving substrate 10, so as to ensure the display requirement of the display panel.

[0117] As shown in the figure, on the other hand, the embodiment of the present application also provides a forming method of a display panel, which includes: Figures 15-17

[0118] S100, forming a light shielding layer 20 on one side of the driving substrate 10, the light shielding layer 20 includes a first blocking structure 21 and a second blocking structure 22, the first blocking structure 21 includes a first opening 211, the second blocking structure 22 is located in the first opening 211, and the thickness of the second blocking structure 22 is smaller than the size of the first blocking structure 21 along the first direction X.

[0119] S200, binding the light emitting element 31, at least part of the light emitting element 31 passes through the light shielding layer 20 and is coupled with the driving substrate 10, the light emitting element 31 is located in the first opening 211, so as to form a display panel, wherein the first direction X is perpendicular to the plane where the driving substrate 10 is located and points to the light emitting direction of the display panel.

[0120] Optionally, the driving substrate 10 can be prepared on site or prepared in advance, and the specific structure of the driving substrate 10 can be the same as the above description in the display panel, which will not be repeated here.

[0121] ​​Optionally, when the light emitting element 31 is bonded, the second blocking structure 22 can be pre-provided with no opening, and the light emitting element 31 can be coupled to the driving substrate 10 by directly piercing the second blocking structure 22. Of course, this is an optional embodiment, and the second blocking structure 22 can also be pre-provided with an opening, so that the light emitting element 31 is directly coupled to the driving substrate 10 through the opening. The specific configuration can be set according to the structure of the light emitting element 31, as long as the bonding requirement can be met.

[0122] The forming method of the display panel provided by the embodiments of the present application can be used to form the display panel provided by each of the above embodiments. Before the light emitting element 31 is bonded, the light shielding layer 20 is first formed on the driving substrate 10, and the light shielding layer 20 includes the first blocking structure 21 and the second blocking structure 22. The first blocking structure 21 includes the first opening 211, and the second blocking structure 22 is located in the first opening 211. In the first direction X, the thickness of the second blocking structure 22 is smaller than the size of the first blocking structure 21. After the light emitting element 31 is coupled to the driving substrate 10 to form the display panel, the area between the light emitting elements 31 can be subjected to light shielding treatment through the first blocking structure 21, and the area where the light emitting element 31 is located can be subjected to light shielding treatment through the second blocking structure 22, thereby reducing the reflectivity of the display panel as a whole and ensuring the display effect.

[0123] As shown in Figure 18 some optional embodiments, the forming method of the display panel provided by the embodiments of the present application further includes: providing a second opening 221 on the second blocking structure 22 before the step of bonding the light emitting element 31.

[0124] The number and setting form of the second opening 221 can be set according to the second opening 221 provided in the display panel in each of the above embodiments, and will not be described here.

[0125] The forming method provided by the embodiments of the present application provides the second opening 221 on the second blocking structure 22 before the step of bonding the light emitting element 31. When the light emitting element 31 is bonded to the driving substrate 10, at least part of the light emitting element 31 can directly pass through the second opening 221 and be coupled to the driving substrate 10, thereby reducing the bonding difficulty.

[0126] As shown in Figure 19 , Figure 20 in some optional embodiments, the forming method of the display panel provided by the embodiments of the present application includes:

[0127] forming a base layer 50 on the driving substrate 10 in the first direction X;

[0128] patterning the base layer 50 to form the light shielding layer 20.

[0129] In other words, a thickened base layer 50 can be directly formed on the driving substrate 10, and then the base layer can be patterned. For example, by etching or other methods, some material can be removed from the base layer 50. The patterned area of ​​the base layer 50 forms a second barrier structure 22, and the unpatterned part forms a first barrier structure 21.

[0130] The molding method provided in this application embodiment facilitates the molding of the light-shielding layer 20 and meets the reflectivity requirements of the molded display panel.

[0131] It is understood that the above-described molding method for the light-shielding layer 20 is only one optional embodiment.

[0132] like Figure 21 , Figure 22 As shown, in some embodiments, the step of forming a light-shielding layer 20 on one side of the driving substrate 10 may further include:

[0133] A base layer 50 is formed in the first direction X of the driving substrate 10;

[0134] A thickened layer is formed in a predetermined area of ​​the base layer 50 to form the light-shielding layer 20.

[0135] The portion of the thickened layer and the base layer 50 superimposed together form the first blocking structure 21. The portion of the base layer 50 without the thickened layer can form the second blocking structure 22. Through the above molding method, it is also beneficial to the molding of the light-shielding layer 20, which meets the requirements of the reflectivity of the molded display panel.

[0136] In another aspect, embodiments of this application also provide a display device, which may include the display panel provided in the above embodiments. The overall reflectivity of the display device is low, resulting in better display performance.

[0137] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: Drive substrate; A light-shielding layer is located on one side of the driving substrate. The light-shielding layer includes a first blocking structure and a second blocking structure. The first blocking structure includes a first opening. The second blocking structure is located at the first opening and along a first direction. The thickness of the second blocking structure is smaller than the size of the first blocking structure. The first direction is a direction perpendicular to the plane where the driving substrate is located and pointing towards the light-emitting surface of the display panel; Multiple pixel units, each pixel unit including multiple light-emitting elements, the light-emitting elements being located within the first opening, and the driving substrate providing driving signals to the light-emitting elements; The second blocking structure is located between the light-emitting element and the substrate, and the light-emitting element and the second blocking structure at least partially overlap along the first direction.

2. The display panel according to claim 1, characterized in that, The light-emitting element includes a light-emitting body and a wiring terminal, and the second blocking structure includes a second opening; the wiring terminal is at least partially disposed in the second opening and electrically connected to the driving substrate, and the second blocking structure is at least partially disposed between the light-emitting body and the driving substrate.

3. The display panel according to claim 2, characterized in that, The terminal block has a first end face and a second end face opposite each other in the first direction. The first end face is connected to the driving substrate and the second end face is connected to the light-emitting body. Along the first direction, the cross-sectional area of ​​the terminal block tends to increase.

4. The display panel according to claim 3, characterized in that, Along the first direction, the cross-section of the terminal gradually increases or increases segment by segment.

5. The display panel according to claim 2, characterized in that, The terminal block is in the first direction, with its first end face connected to the driving substrate and its second end face connected to the light-emitting body. Along the first direction and from the first end face to the second end face, the terminal block has a uniform cross-section structure.

6. The display panel according to claim 2, characterized in that, The diameter of the second opening is equal to the outer diameter of the terminal block.

7. The display panel according to claim 2, characterized in that, The diameter of the second opening is larger than the outer diameter of the terminal block, and a gap is formed between the outer peripheral surface of the terminal block and the wall surrounding the second opening.

8. The display panel according to claim 7, characterized in that, The pixel unit includes a first color light-emitting element and a second color light-emitting element. A first gap is formed between the first color light-emitting element and the wall of the second opening, and a second gap is formed between the second color light-emitting element and the wall of the second opening. The first gap is larger than the second gap.

9. The display panel according to claim 2, characterized in that, Along the first direction, the ratio of the thickness of the terminal block to the thickness of the second blocking structure is greater than 1.

10. The display panel according to claim 1, characterized in that, A single light-emitting element is disposed within the first opening.

11. The display panel according to claim 10, characterized in that, The pixel unit includes a first color light-emitting element, a second color light-emitting element, and a third color light-emitting element. Along the first direction, the portion of the first blocking structure located between the first color light-emitting element and the second color light-emitting element has a first height, and the portion of the first blocking structure located between the second color light-emitting element and the third color light-emitting element has a second height. The first height is greater than the second height.

12. The display panel according to claim 1, characterized in that, The display panel has a first region and a second region. The pixel unit includes a first color light-emitting element and a second color light-emitting element. In the first region, the first blocking structure between at least one first color light-emitting element and an adjacent second color light-emitting element has a third height in the first direction. In the second region, the first blocking structure between at least one first color light-emitting element and an adjacent second color light-emitting element has a fourth height in the first direction. The third height is greater than the fourth height.

13. The display panel according to claim 1, characterized in that, At least two of the light-emitting elements are disposed within the first opening.

14. The display panel according to claim 13, characterized in that, At least two of the light-emitting elements disposed within the first opening emit light of different colors.

15. The display panel according to claim 13, characterized in that, The light-emitting elements disposed within the first opening emit the same color.

16. The display panel according to claim 1, characterized in that, The display panel further includes a barrier layer. Along the first direction, the barrier layer is disposed on the side of the light-shielding layer away from the driving substrate and protrudes from the light-emitting element. Adjacent pixel units are separated by the barrier layer.

17. The display panel according to claim 16, characterized in that, Along the first direction, the orthographic projection of the barrier layer on the driving substrate lies within the orthographic projection of the first blocking structure.

18. The display panel according to claim 1, characterized in that, At least one of the light-emitting elements is provided with a redundant position located in the second blocking structure, the redundant position including a third opening.

19. A method for molding a display panel, characterized in that, include: A light-shielding layer is formed on one side of the driving substrate. The light-shielding layer includes a first blocking structure and a second blocking structure. The first blocking structure includes a first opening. The second blocking structure is located at the first opening and along a first direction. The thickness of the second blocking structure is smaller than the size of the first blocking structure. A light-emitting element is bonded, with at least a portion of the light-emitting element passing through the light-shielding layer and coupled to the driving substrate. The light-emitting element is located within the first opening to form a display panel. The first direction is perpendicular to the plane of the driving substrate and points towards the light-emitting surface of the display panel. The second blocking structure is located between the light-emitting element and the substrate. Along the first direction, the light-emitting element and the second blocking structure at least partially overlap.

20. The method for forming a display panel according to claim 19, characterized in that, Prior to the step of binding the light-emitting element, the method further includes: providing a second opening on the second blocking structure.

21. The method for forming a display panel according to claim 19, characterized in that, The step of forming a light-shielding layer on one side of the driving substrate includes: A base layer is formed in the first direction of the driving substrate; The base layer is patterned to form a light-shielding layer.

22. The method for forming a display panel according to claim 19, characterized in that, The step of forming a light-shielding layer on one side of the driving substrate includes: A base layer is formed in the first direction of the driving substrate; A thickened layer is formed in a predetermined area of ​​the base layer to form the light-shielding layer.

23. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 18.

Images