Display panel, display device and method for manufacturing display panel

Abstract

The application discloses a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate, a light-emitting layer located on one side of the substrate, the light-emitting layer comprising light-emitting units arranged at intervals, and a light-blocking layer located on the side, away from the substrate, of the light-emitting layer, the light-blocking layer being provided with an opening, at least part of the position of the opening on the substrate being overlapped with the orthographic projection of the light-emitting units on the substrate, and a peep-proof part being arranged in the opening and used for blocking part of light rays at non-normal viewing angles. The structure of the application can improve the peep-proof effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel, a display device, and a method for manufacturing the display panel. Background Technology

[0002] In today's environment where personal privacy is increasingly valued, the demand for privacy-protecting display terminals is becoming more and more important. The key to privacy protection lies in limiting brightness over a wide viewing angle. Currently, privacy films are usually attached to the display panel of the display terminal to achieve the privacy effect. However, privacy films are usually quite thick. How to integrate privacy technology into the display panel to reduce the thickness of the display terminal has become a key research focus. Summary of the Invention

[0003] This application provides a display panel, a display device, and a method for manufacturing the display panel, which can improve the privacy protection effect of the display panel.

[0004] This application provides a display panel, the display panel comprising: a substrate; a light-emitting layer located on one side of the substrate, the light-emitting layer comprising spaced-apart light-emitting units; a light-shielding layer located on the side of the light-emitting layer away from the substrate, the light-shielding layer having an opening, at least a portion of the opening having an orthographic projection on the substrate overlapping the orthographic projection of the light-emitting unit on the substrate, and the opening having a privacy screen portion for blocking some non-orthographic light.

[0005] In one embodiment, the light-shielding layer includes a black matrix layer.

[0006] Preferably, the privacy screen is made of the same material as the light-shielding layer.

[0007] Preferably, the privacy screen and the light-shielding layer are integrally formed.

[0008] Preferably, the orthographic projection of the opening on the substrate is located within the orthographic projection of the light-emitting unit on the substrate, and the orthographic projection of the privacy screen on the substrate is located within the orthographic projection of the light-emitting unit on the substrate.

[0009] In one embodiment, the privacy screen includes two or more concentric annular privacy screens, with adjacent privacy screens spaced apart.

[0010] Preferably, the orthographic projection of the light-emitting unit on the substrate is circular.

[0011] In one embodiment, the privacy screen includes two or more privacy screen sub-sections disposed along a first direction and / or a second direction, the first direction and the second direction intersecting each other and being parallel to the substrate.

[0012] Preferably, the first direction and the second direction are perpendicular.

[0013] Preferably, the orthographic projection of the light-emitting unit on the substrate is at least one of a rectangle or a rhombus.

[0014] In one embodiment, the display panel further includes a filling portion, which fills at least between adjacent privacy screen portions.

[0015] Preferably, at least a portion of the filling portion is located on the side of the light-shielding layer opposite to the substrate.

[0016] In one embodiment, the filling portion is a filter portion.

[0017] Preferably, there are multiple light-emitting units, including a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that display different colors. There are also multiple light-filtering parts, including a first light-filtering part, a second light-filtering part, and a third light-filtering part. The first light-emitting unit is correspondingly arranged with the first light-filtering part, the second light-emitting unit is correspondingly arranged with the second light-filtering part, and the third light-emitting unit is correspondingly arranged with the third light-filtering part.

[0018] Preferably, the first light-emitting unit emits red light and the first filter is a red filter; the second light-emitting unit emits green light and the second filter is a green filter; the third light-emitting unit emits blue light and the third filter is a blue filter.

[0019] Preferably, the first light-emitting unit emits red light and the first filter is a yellow filter; the second light-emitting unit emits green light and the second filter is a yellow filter; the third light-emitting unit emits blue light and the third filter is a blue filter.

[0020] In one embodiment, the display panel further includes a planarization layer located on the side of the light-shielding layer away from the substrate.

[0021] Preferably, the filling material is a semi-transparent material.

[0022] Preferably, the filling portion is made of the same material as the planarization layer, and the filling portion and the planarization layer are integrally formed.

[0023] In one embodiment, the display panel further includes a microlens layer located between the light-shielding layer and the light-emitting layer, comprising a first refractive portion and a second refractive portion, wherein the first refractive portion is disposed corresponding to the light-emitting unit, and the refractive index of the first refractive portion is greater than the refractive index of the second refractive portion.

[0024] Preferably, at least one surface of the first refractive portion is a convex circle.

[0025] This application also provides a display device, including a display panel as described in any of the above embodiments.

[0026] This application also provides a method for manufacturing a display panel, the method comprising: providing a substrate; preparing a light-emitting layer on one side of the substrate, wherein the light-emitting layer includes spaced-apart light-emitting units; preparing a light-shielding layer and a privacy screen on the side of the light-emitting layer away from the substrate by a patterning process, wherein the light-shielding layer has an opening, at least a portion of the opening having an orthographic projection on the substrate that overlaps with the orthographic projection of the light-emitting units on the substrate, and the privacy screen being disposed in the opening.

[0027] In one embodiment, the privacy screen and the light-shielding layer are fabricated using the same patterning process.

[0028] Preferably, the method further includes: preparing a filling portion in the opening using a patterning process.

[0029] Preferably, the method further includes: preparing a planarization layer on the side of the light-shielding layer away from the substrate.

[0030] Preferably, before preparing the light-shielding layer and the privacy shield, the method further includes: preparing a microlens layer on the side of the light-emitting layer away from the substrate, wherein the microlens layer includes a first refractive portion and a second refractive portion, the first refractive portion is disposed corresponding to the light-emitting unit, and the refractive index of the first refractive portion is greater than the refractive index of the second refractive portion.

[0031] Unlike existing technologies, the beneficial effects of this application are as follows: the light-emitting layer of the display panel of this application has a light-shielding layer on the side away from the substrate, the opening of the light-shielding layer corresponds at least partially to the light-emitting unit, and a privacy screen is provided in the opening. The light-shielding layer and the privacy screen can absorb the light from the light-emitting unit under a wide viewing angle, thereby reducing the viewing angle of the display panel and ultimately improving the privacy screen effect of the display panel. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of the first embodiment of the display panel of this application;

[0034] Figure 2yes Figure 1 A top view of one embodiment of the light-emitting unit and the privacy screen;

[0035] Figure 3 yes Figure 1 A top view of another embodiment of the light-emitting unit and the privacy screen;

[0036] Figure 4 This is a schematic diagram of the structure of the second embodiment of the display panel of this application;

[0037] Figure 5 This is a schematic diagram of the structure of the third embodiment of the display panel of this application;

[0038] Figure 6 This is a schematic diagram of one embodiment of the display device of this application;

[0039] Figure 7 This is a schematic flowchart of one embodiment of the method for manufacturing the display panel of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that the terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0042] See Figure 1This application provides a display panel 10, which includes a substrate 110, a light-emitting layer 120, and a light-shielding layer 130. The light-emitting layer 120 is located on one side of the substrate 110 and includes spaced-apart light-emitting units P. The light-shielding layer 130 is located on the side of the light-emitting layer 120 away from the substrate 110 and has an opening H. At least a portion of the opening H is projected onto the substrate 110 in a normal direction, which overlaps with the normal projection of the light-emitting unit P onto the substrate 110. A privacy screen 140 is provided in the opening H to block some light from non-normal viewing angles.

[0043] Specifically, at least a portion of the opening H corresponds to the light-emitting unit P, ensuring that light from the light-emitting unit P at a positive viewing angle can exit from the opening H. The positive viewing angle refers to the angle perpendicular to the extension direction of the substrate 110. The light-shielding layer 130 can block light, not only external light but also light emitted by the light-emitting unit P in the display panel 10. Of course, the light-shielding layer 130 is not directly opposite the light-emitting unit P, therefore, it can block light emitted by the light-emitting unit P at a wide viewing angle.

[0044] Furthermore, to further enhance the privacy protection effect, this application further provides a privacy shield 140 in the opening H, from... Figure 1 As can be seen, although the light-shielding layer 130 blocks some of the light from the light-emitting unit P, a portion of the light from the light-emitting unit P still escapes through the opening H. By further providing a privacy screen 140 in the opening H to further block the light from the light-emitting unit P, and through the small light-transmitting hole H1 formed between adjacent privacy screens 140 or between adjacent privacy screens and the light-shielding layer 130, the viewing angle of light emanating from the light-emitting unit P is limited to within θ. The viewing angle θ is determined by the depth and width of the light-transmitting hole H1. The specific size of the viewing angle θ can be chosen according to the situation, and this application does not impose specific limitations. By setting the privacy screen 140 in this application, the viewing angle of the display panel 10 can be further reduced, thereby improving the privacy protection effect of the display panel 10.

[0045] In one embodiment, the light-shielding layer 130 includes a black matrix layer. The material of the black matrix layer includes black photoresist, black resin, or black ink, etc. Such a material is capable of absorbing light across the entire visible light spectrum.

[0046] In one embodiment, the privacy screen 140 and the light-shielding layer 130 are made of the same material. Using the same material for both the privacy screen 140 and the light-shielding layer 130 can reduce manufacturing costs.

[0047] In one embodiment, the privacy screen 140 and the light-shielding layer 130 are integrally formed. That is, the privacy screen 140 and the light-shielding layer 130 can be manufactured together using the same process, for example, a patterning process, which can improve manufacturing efficiency.

[0048] Of course, in some other embodiments, the light-shielding layer may be other film layers or made of other materials, and this application does not impose specific limitations.

[0049] In one embodiment, the privacy screen 140 includes a privacy screen part. By providing only one privacy screen part in the opening H, a good privacy screen effect can be achieved, and the manufacturing method is also relatively simple.

[0050] In one embodiment, see Figure 1 The privacy screen 140 includes a grating.

[0051] Specifically, the grating can be understood as having multiple privacy sub-parts F in the privacy section 140, and a light-transmitting hole H1 is provided between adjacent privacy sub-parts F. Obviously, due to the increase in the number of privacy sub-parts F, the width of the light-transmitting hole H1 is reduced, which makes the viewing angle of the light emitted by the light-emitting unit P smaller, and can further improve the privacy effect of the display panel 10.

[0052] In one embodiment, see Figure 1 The orthographic projection of the opening H on the substrate 110 is located within the orthographic projection of the light-emitting unit P on the substrate 110, and the orthographic projection of the privacy screen 140 on the substrate 110 is located within the orthographic projection of the light-emitting unit P on the substrate 110.

[0053] Specifically, the opening H corresponds to the light-emitting unit P, and the size of the opening H is not greater than the size of the light-emitting unit P. The viewing angle of the display panel 10 can be limited by the opening H. At the same time, the privacy screen 140 corresponds completely to the light-emitting unit P, so that the privacy screen effect is better.

[0054] In some other embodiments, the size of the opening may be larger than that of the light-emitting unit, and the orthographic projection of the partial privacy screen onto the substrate may not overlap with the orthographic projection of the light-emitting unit onto the substrate.

[0055] In one embodiment, see Figure 2 The privacy screen 140 includes two or more concentrically arranged annular privacy screens F, with adjacent privacy screens F spaced apart.

[0056] Specifically, the ring-shaped privacy screen F ensures that the privacy effect is the same in all directions, and setting two or more privacy screens F can reduce the viewing angle. In addition, setting two or more privacy screens F concentrically can ensure the uniformity of light output.

[0057] In one embodiment, see further. Figure 2 The orthographic projection of the light-emitting unit P onto the substrate 110 is circular. The circular light-emitting unit P and the annular privacy screen 140 can be matched, thereby improving both the light-emitting effect and the privacy screen effect.

[0058] Of course, in some other embodiments, the light-emitting unit P can also be other shapes, and this application does not impose specific limitations.

[0059] In one embodiment, see Figure 3 The privacy screen 140 includes two or more privacy screen sub-sections F disposed along a first direction and / or a second direction, the first direction X and the second direction Y intersect, and the first direction X and the second direction Y are parallel to the substrate 110.

[0060] Specifically, the privacy screen F can be provided only along the first direction X, or only along the second direction Y, or both along the first direction X and the second direction Y. It is understood that providing privacy along the first direction X provides the best protection against light perpendicular to the first direction X; providing privacy along the second direction Y provides the best protection against light perpendicular to the second direction Y. By providing the privacy screen F in at least one of the first and second directions X and Y, the light-transmitting area corresponding to the light-emitting unit P is divided into smaller sections. When the privacy screen F is provided in both directions, the intersecting privacy screen F forms a mesh structure, providing better privacy protection in the directions perpendicular to the first direction X and the second direction Y compared to other directions.

[0061] In one embodiment, see Figure 3 The first direction X and the second direction Y are perpendicular. When anti-spy parts F are provided in both the first direction X and the second direction Y, the light from both directions X and Y is blocked.

[0062] In one embodiment, see further. Figure 3 The orthographic projection of the light-emitting unit P onto the substrate 110 is at least one of a rectangle or a rhombus. The rectangular or rhombus structure of the light-emitting unit P has a better match with the mesh structure of the privacy screen 140.

[0063] Of course, in some other embodiments, the mesh-structured privacy screen can also be disposed on light-emitting units of other shapes, and this application does not impose any specific limitations.

[0064] In one embodiment, see Figure 4 The display panel 10 also includes a filling portion 150, which fills at least between adjacent privacy screen portions F. By filling the space between adjacent privacy screen portions F with the filling portion 150, the structure of the privacy screen portion 140 becomes more stable.

[0065] In one embodiment, at least a portion of the filling portion 150 is located on the side of the light-shielding layer 130 away from the substrate 110. By further filling the side of the light-shielding layer 130 away from the substrate 110 with the filling portion 150, it can be ensured that even if there are process fluctuations within a certain range of precision during fabrication, the light-transmitting hole can be completely filled by the filling portion 150.

[0066] Of course, in some other implementations, the light-transmitting holes of the grating may not be filled.

[0067] In one embodiment, see Figure 4 The filling part 150 is a light filter. A light filter is a structure that can filter light within a certain wavelength range. The light filter absorbs external light but does not absorb the light emitted by the light-emitting unit P, thus avoiding the possibility of external light being reflected. This reduces the reflectivity of the display panel 10. The principle of reducing reflectivity is that since the electrodes in the light-emitting unit P have the function of reflecting light, once external light enters the light-emitting unit P, it will be reflected by the electrodes and mixed with the light emitted by the light-emitting unit, which will reduce the display effect of the display panel.

[0068] In one embodiment, there are multiple light-emitting units P, each light-emitting unit P including a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that display different colors. There are also multiple light-filtering parts, each light-filtering part including a first light-filtering part, a second light-filtering part, and a third light-filtering part. The first light-emitting unit is correspondingly arranged with the first light-filtering part, the second light-emitting unit is correspondingly arranged with the second light-filtering part, and the third light-emitting unit is correspondingly arranged with the third light-filtering part.

[0069] Specifically, the display panel has three light-emitting units with different light-emitting colors, and each light-emitting unit with a different light-emitting color has a corresponding filter, so that the light emitted by the corresponding light-emitting unit can be passed through the corresponding filter.

[0070] In one embodiment, the first light-emitting unit emits red light and the first filter is a red filter; the second light-emitting unit emits green light and the second filter is a green filter; and the third light-emitting unit emits blue light and the third filter is a blue filter.

[0071] Specifically, in this embodiment, light-emitting units of the same color correspond to filter sections of the same color, thereby enabling the transmission of light of the same color and the absorption of external light, thus reducing reflectivity.

[0072] In one embodiment, the first light-emitting unit emits red light and the first filter is a yellow filter; the second light-emitting unit emits green light and the second filter is a yellow filter; the third light-emitting unit emits blue light and the third filter is a blue filter.

[0073] Specifically, in this embodiment, in addition to the blue light-emitting unit using a blue filter, the red and green light-emitting units both use yellow filters. This is because the yellow filter absorbs a wider wavelength and can absorb both red and green wavelengths of light. During the fabrication process, the first filter and the second filter can be fabricated simultaneously. Compared to the previous embodiment, this reduces one process step, which helps to lower costs and also achieves the effect of reducing reflectivity.

[0074] In one embodiment, see Figure 4 The display panel 10 also includes a planarization layer 160, which is located on the side of the light-shielding layer 130 away from the substrate 110.

[0075] Specifically, a planarization layer 160 is prepared on the light-shielding layer 130. The planarization layer 160 eliminates the unevenness between the light-shielding layer 130, the privacy screen 140, and the filling part 150. Specifically, since the privacy screen 140 and the filling part 150 are both disposed in the opening of the light-shielding layer 130, and the three parts are disposed on the same layer, and since the manufacturing processes are not exactly the same, there will be certain undulations on the surface away from the substrate 110 after the three parts are prepared. Such undulations will have a certain impact on subsequent processes. Therefore, by setting the planarization layer 160, planarization is performed. The surface of the planarization layer 160 away from the substrate 110 is a flat surface, which can ensure that subsequent processes are prepared on a flat surface.

[0076] In one embodiment, the planarization layer 160 is made of a transparent material. For example, it may be a transparent OC adhesive.

[0077] In one embodiment, the filling portion 150 is made of a semi-transparent material. The semi-transparent material can absorb some external light, thus reducing reflectivity. Of course, the semi-transparent material will also absorb some light emitted by the light-emitting unit P. The semi-transparent material can be a semi-transparent OC adhesive.

[0078] In one embodiment, the filler portion 150 and the planarization layer 160 are made of the same material, and the filler portion 150 and the planarization layer 160 are integrally formed. The filling portion 150 and the planarization layer 160 can be prepared using the same material in a single process, which simplifies the manufacturing process.

[0079] Of course, in some other embodiments, the filling portion and the planarization layer can be prepared in two steps, or different materials can be selected.

[0080] In one embodiment, see Figure 5 The display panel 10 also includes a microlens layer 170, which is located between the light-shielding layer 130 and the light-emitting layer 120. It includes a first refractive part 171 and a second refractive part 172. The first refractive part 171 is correspondingly disposed with the light-emitting unit P, and the refractive index of the first refractive part 171 is greater than the refractive index of the second refractive part 172.

[0081] Specifically, the microlens layer 170 is disposed between the light-shielding layer 130 and the light-emitting layer 120. The refractive index of the first refractive part 171 is greater than that of the second refractive part 172. Therefore, the light emitted by the light-emitting unit P will be converged from the first refractive part 171 to the second refractive part 172. That is to say, before entering the privacy protection part 140, the viewing angle is reduced by the converging effect, and then the viewing angle is further reduced by the privacy protection part 140, thereby enhancing the privacy protection effect.

[0082] In one embodiment, at least one surface of the first refractive portion 171 is a convex circular shape. The convex circular structure allows the converged light to be more concentrated, thereby achieving a better converging effect.

[0083] Of course, in some other embodiments, the surface of at least one side of the first refractive part 171 may also be other shapes, such as a convex triangle or the like.

[0084] Of course, in some other implementations, the microlens layer may not be necessary.

[0085] Please see Figure 6 This application also provides a display device 20, which includes a display panel 10 as described above.

[0086] Specifically, the display device 20 can be any electronic device such as a laptop, desktop computer, tablet computer, mobile phone, smartwatch, or virtual display terminal, without any restrictions.

[0087] See Figure 1 and Figure 7 This application also provides a method for manufacturing a display panel, the method comprising:

[0088] S100: Provides a substrate 110.

[0089] Specifically, the substrate 100 can be a rigid substrate or a flexible substrate. Rigid substrates include glass, etc., while flexible substrates include polyimide, etc.

[0090] S200: A light-emitting layer 120 is prepared on one side of the substrate 110, wherein the light-emitting layer 120 includes light-emitting units P arranged at intervals.

[0091] Specifically, the light-emitting layer 120 can be prepared by a vapor deposition process, and the light-emitting units P of the light-emitting layer 120 can be formed by a mask process. In some embodiments, an array layer is prepared on the substrate 110 before the light-emitting layer 120 is prepared, and an encapsulation layer is prepared on the side of the light-emitting layer 120 away from the substrate 110 after the light-emitting layer 120 is prepared.

[0092] S300: A light-shielding layer 130 and a privacy screen 140 are prepared on the side of the light-emitting layer 120 away from the substrate 110 by a patterning process. An opening H is provided on the light-shielding layer 130. At least a portion of the opening H is projected onto the substrate 110 in a positive projection that overlaps with the positive projection of the light-emitting unit P onto the substrate 110. The privacy screen 140 is disposed in the opening H.

[0093] Specifically, the patterning process refers to the patterning preparation of the film layer through processes such as photoresist coating, exposure, etching, and photoresist stripping, and the formation of an opening H through patterning preparation. A privacy screen 140 is then fabricated within the opening H through the patterning process. Furthermore, the technical effects of this application are the same as those described in the structural section above, and will not be repeated here.

[0094] In one embodiment, the privacy screen 140 and the light-shielding layer 130 are fabricated using the same patterning process. This reduces the number of processes and lowers costs.

[0095] In one embodiment, see Figure 5 The method of this application further includes: preparing a filling portion 150 in the opening H using a patterning process. The patterning process is similar to that described above, except that the filling portion 150 in the opening H is retained. It should be noted that when the filling portion 150 is a color filter portion, since different light-emitting units P correspond to different color filters, different color filters need to be prepared in separate processes.

[0096] In one embodiment, see Figure 5 The method of this application further includes: preparing a planarization layer 160 on the side of the light-shielding layer 130 away from the substrate 110. The planarization layer 150 can be formed across the entire surface by a coating process.

[0097] In one embodiment, see Figure 5 Before preparing the light-shielding layer 130 and the privacy screen 140, the method of this application further includes:

[0098] A microlens layer 170 is prepared on the side of the light-emitting layer 120 away from the substrate 110. The microlens layer 170 includes a first refractive part 171 and a second refractive part 172. The first refractive part 171 is disposed corresponding to the light-emitting unit P. The refractive index of the first refractive part 171 is greater than the refractive index of the second refractive part 172.

[0099] Specifically, the first refractive part 171 can be prepared by inkjet printing, and the second refractive part 172 can be formed by coating, ultimately forming the microlens layer 170.

[0100] The above preparation method allows for changing the order of steps, as long as the purpose of this application can be achieved, and the changed order is still within the scope of protection of this application.

[0101] Furthermore, the aforementioned simultaneous fabrication of the light-shielding layer and privacy screen using a patterning process can be achieved in two ways. First, the entire light-shielding layer is directly exposed and etched to obtain the light-shielding layer and privacy screen with openings as described in this application. Second, photoresist is applied to the side of the entire light-shielding layer away from the substrate, the photoresist is exposed and developed, and then etched to form the light-shielding layer and privacy screen with openings. Finally, the photoresist is removed. The first method has the advantage of relatively simple processing, but the resolution is relatively poor; the second method has higher resolution, but the process is relatively complex.

[0102] Of course, the above preparation method can be adjusted according to the structure in various different embodiments provided in this application.

[0103] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display panel, characterized in that, The display panel includes: Substrate; A light-emitting layer is located on one side of the substrate, and the light-emitting layer includes light-emitting units arranged at intervals. A light-shielding layer is located on the side of the light-emitting layer away from the substrate. An opening is provided on the light-shielding layer. The orthographic projection of at least a portion of the opening on the substrate overlaps with the orthographic projection of the light-emitting unit on the substrate. A privacy screen is provided in the opening. The privacy screen is used to block part of light that is not at the orthographic angle. The privacy screen includes at least two privacy screen sub-parts. A filling portion, at least filling between adjacent privacy shield portions, wherein the filling portion is a light filter portion, and at least a portion of the filling portion is located on the side of the light shielding layer away from the substrate; The number of light-emitting units is multiple, and the multiple light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit that display different colors. The number of filter parts is also multiple, and the multiple filter parts include a first filter part, a second filter part, and a third filter part. The first light-emitting unit is correspondingly arranged with the first filter part, the second light-emitting unit is correspondingly arranged with the second filter part, and the third light-emitting unit is correspondingly arranged with the third filter part. The first light-emitting unit emits red light, and the first filter is a red filter; the second light-emitting unit emits green light, and the second filter is a green filter; the third light-emitting unit emits blue light, and the third filter is a blue filter; or, the first light-emitting unit emits red light, and the first filter is a yellow filter; the second light-emitting unit emits green light, and the second filter is a yellow filter; the third light-emitting unit emits blue light, and the third filter is a blue filter.

2. The display panel according to claim 1, characterized in that, The light-shielding layer includes a black matrix layer.

3. The display panel according to claim 2, characterized in that, The privacy screen is made of the same material as the light-shielding layer.

4. The display panel according to claim 3, characterized in that, The privacy screen and the light-shielding layer are integrally formed.

5. The display panel according to claim 2, characterized in that, The orthographic projection of the opening on the substrate is located within the orthographic projection of the light-emitting unit on the substrate, and the orthographic projection of the privacy screen on the substrate is located within the orthographic projection of the light-emitting unit on the substrate.

6. The display panel according to claim 1, characterized in that, The privacy screen includes two or more concentrically arranged annular privacy screens, with adjacent privacy screens spaced apart.

7. The display panel according to claim 6, characterized in that, The orthographic projection of the light-emitting unit onto the substrate is circular.

8. The display panel according to claim 1, characterized in that, The privacy screen includes two or more privacy screen sub-parts disposed along a first direction and / or a second direction, the first direction and the second direction intersecting each other and being parallel to the substrate.

9. The display panel according to claim 8, characterized in that, The first direction and the second direction are perpendicular.

10. The display panel according to claim 8, characterized in that, The orthographic projection of the light-emitting unit onto the substrate is at least one of a rectangle or a rhombus.

11. The display panel according to claim 1, characterized in that, The display panel also includes: A planarization layer is located on the side of the light-shielding layer away from the substrate.

12. The display panel according to claim 11, characterized in that, The filling material is a semi-transparent material.

13. The display panel according to claim 12, characterized in that, The filling portion is made of the same material as the planarization layer, and the filling portion and the planarization layer are integrally formed.

14. The display panel according to claim 1, characterized in that, The display panel also includes: The microlens layer, located between the light-shielding layer and the light-emitting layer, includes a first refractive part and a second refractive part. The first refractive part is correspondingly disposed with the light-emitting unit, and the refractive index of the first refractive part is greater than the refractive index of the second refractive part.

15. The display panel according to claim 14, characterized in that, The surface of at least one side of the first refractive part is a convex circle.

16. A display device, characterized in that, Includes a display panel as described in any one of claims 1 to 15 above.

17. A method for manufacturing a display panel, characterized in that, The method includes: Provide a substrate; A light-emitting layer is prepared on one side of the substrate, wherein the light-emitting layer includes light-emitting units spaced apart. A light-shielding layer and a privacy screen are fabricated on the side of the light-emitting layer away from the substrate using a patterning process. The light-shielding layer has an opening, and at least a portion of the opening is projected onto the substrate in an orthographic projection that overlaps with the orthographic projection of the light-emitting unit onto the substrate. The privacy screen is disposed in the opening. The privacy screen includes at least two privacy screen sub-parts. The method further includes: A filling portion is prepared in the opening using a patterning process; the filling portion fills at least between adjacent privacy screen portions, and the filling portion is a light filter portion.

18. The preparation method according to claim 17, characterized in that, The privacy screen and the light-shielding layer are fabricated using the same patterning process.

19. The preparation method according to claim 17, characterized in that, The method further includes: A planarization layer is prepared on the side of the light-shielding layer away from the substrate.

20. The preparation method according to claim 17, characterized in that, Before preparing the light-shielding layer and the privacy screen, the method further includes: A microlens layer is prepared on the side of the light-emitting layer away from the substrate. The microlens layer includes a first refractive portion and a second refractive portion. The first refractive portion is disposed corresponding to the light-emitting unit, and the refractive index of the first refractive portion is greater than the refractive index of the second refractive portion.

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