Display panel, preparation method thereof and display device

Abstract

The embodiment of the invention provides a display panel, a preparation method thereof and a display device. The display panel comprises a plurality of first electrodes and shading limiting structures arranged on one sides of the first electrodes. A first opening and a second opening are formed in the shading limiting structure, the first opening exposes at least part of the first electrodes, and the second opening is overlapped with a gap between the two adjacent first electrodes in the first direction; the first direction is the thickness direction of the display panel. By adopting the technical scheme provided by the embodiment of the invention, the shading limiting structure is arranged and adjusted, so that the first electrode can be prevented from interfering with the light emitted from the first opening in other areas outside the first opening, and the overall display effect of the display panel is ensured. Furthermore, the shading limiting structure is further provided with a second opening, the second opening can avoid the situation that two adjacent light-emitting elements are lighted secretly, and the overall display effect of the display panel is further reflected.

Description

Technical Field

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

[0002] With the continuous development of display technology, display panels have been widely used in people's production and daily life. The light-emitting elements in a display panel include electrode structures, and the film layers located near these electrode structures are generally made of transparent insulating material. This means that some areas of the electrode structures will reflect light, affecting the overall light emission effect of the display panel and thus its overall display quality. Therefore, to ensure the display effect, some film layers in the display panel can be carefully adjusted. Summary of the Invention

[0003] This invention provides a display panel and its manufacturing method, as well as a display device. By setting and adjusting the light-shielding limiting structure, the overall display effect of the display panel is improved.

[0004] In a first aspect, embodiments of the present invention provide a display panel, including a plurality of first electrodes and a light-shielding limiting structure disposed on one side of the first electrodes;

[0005] The light-shielding limiting structure is provided with a first opening and a second opening. The first opening exposes at least a portion of the first electrode, and the second opening overlaps with the gap between two adjacent first electrodes in a first direction; the first direction is the thickness direction of the display panel.

[0006] Secondly, this valve embodiment provides a method for manufacturing a display panel, comprising:

[0007] A plurality of first electrodes are prepared and a light-shielding limiting structure is prepared; the light-shielding limiting structure is provided with a first opening and a second opening, the first opening exposing at least a portion of the first electrodes, and the second opening overlapping with the gap between two adjacent first electrodes in a first direction; the first direction is the thickness direction of the display panel.

[0008] Thirdly, embodiments of the present invention provide a display device including the display module described in the first aspect.

[0009] In summary, this embodiment of the invention provides a display panel with a light-shielding limiting structure disposed on one side of a first electrode. The light-shielding limiting structure includes a first opening that exposes at least a portion of the first electrode; therefore, the first opening can be understood as a pixel opening in the display panel. Because the light-shielding limiting structure has light-blocking properties, it can prevent the first electrode from reflecting light in areas other than the first opening, thereby ensuring the overall display effect of the display panel. Furthermore, the light-shielding limiting structure also includes a second opening, which can prevent or reduce light leakage between adjacent light-emitting elements, further improving the overall display effect of the display panel. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of a display panel structure in the prior art;

[0012] Figure 2 This is a schematic diagram of the structure of the first type of display panel provided in an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the structure of the second type of display panel provided in an embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of the structure of the third type of display panel provided in the embodiments of the present invention;

[0015] Figure 5 This is a schematic diagram of the structure of the fourth type of display panel provided in the embodiments of the present invention;

[0016] Figure 6 This is a schematic diagram of the structure of the fifth type of display panel provided in the embodiments of the present invention;

[0017] Figure 7 This is a schematic diagram of the structure of the sixth type of display panel provided in the embodiments of the present invention;

[0018] Figure 8 This is a schematic diagram of the structure of the seventh type of display panel provided in the embodiments of the present invention;

[0019] Figure 9 This is a schematic diagram of the structure of the eighth type of display panel provided in the embodiments of the present invention;

[0020] Figure 10This is a structural schematic diagram of the ninth type of display panel provided in an embodiment of the present invention;

[0021] Figure 11 This is a structural schematic diagram of the tenth type of display panel provided in an embodiment of the present invention;

[0022] Figure 12 This is a schematic diagram of the structure of the eleventh type of display panel provided in the embodiment of the present invention;

[0023] Figure 13 This is a schematic diagram of the structure of the twelfth type of display panel provided in the embodiments of the present invention;

[0024] Figure 14 This is a schematic flowchart of the first method for manufacturing a display panel provided in an embodiment of the present invention;

[0025] Figure 15 This is a schematic flowchart of a second method for preparing a display panel provided in an embodiment of the present invention;

[0026] Figure 16 This is a schematic diagram of the process of the first method for manufacturing a display panel provided in an embodiment of the present invention;

[0027] Figure 17 This is a schematic flowchart of the third method for preparing a display panel provided in an embodiment of the present invention;

[0028] Figure 18 This is a schematic diagram of the process of manufacturing a second display panel provided in an embodiment of the present invention;

[0029] Figure 19 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] Figure 1 This is a schematic diagram of a display panel structure in the prior art, for reference. Figure 1 As shown, in the prior art, the light-emitting element 100' in the display panel 10' includes a first electrode 110', and a pixel-defining structure 200' is disposed on one side of the first electrode 110'. The pixel-defining structure 200' is used to define the opening area of ​​the light-emitting element 100'. The opening area defined by the pixel-defining structure 200' can be understood as the effective area in the display panel 10' where the light-emitting element 100' can emit light and display. Optionally, the display panel 10' is illustrated as an organic light-emitting display panel, see reference... Figure 1 As shown, the light-emitting element 100' may further include a light-emitting layer 120' and a second electrode 130', and the light-emitting element 100' is disposed on one side of the array substrate 300'.

[0035] For details, please refer to Figure 1 As shown, the pixel-defining structure 200' covers at least a portion of the first electrode 110'. The first electrode 110' covered by the pixel-defining structure 200' reflects ambient light, affecting the normal light emission of the display panel. Specifically, the ambient light reflected by the first electrode 110' covered by the pixel-defining structure 200' can be found in [reference needed]. Figure 1 The light transmission path is a', while the normal light output path of the light-emitting element 100' can be referenced. Figure 1The light transmission path b' in the image is affected by the light emanating from the light transmission path a', which in turn interferes with the light transmitted through the light transmission path b'. This impacts the overall display effect of the display panel 10', resulting in a poor user experience. Furthermore, if a large-area light-shielding structure is placed on the light-emitting side of the light-emitting element, the structure will block the light from the light-emitting element at a wide viewing angle, preventing the light from emanating normally. This leads to problems such as rapid brightness decay and severe color distortion at wide viewing angles.

[0036] To address the aforementioned technical issues, embodiments of the present invention provide a display panel. The display panel has a light-shielding structure on one side of a first electrode. This light-shielding structure includes a first opening that exposes at least a portion of the first electrode; therefore, the first opening can be understood as a pixel opening in the display panel. Because the light-shielding structure has light-blocking properties, it prevents interference from other areas outside the first opening with the light emitted from that opening, thereby ensuring the overall display effect of the display panel. Furthermore, the light-shielding structure also includes a second opening, which can prevent or reduce light leakage between adjacent light-emitting elements, further enhancing the overall display effect of the display panel.

[0037] The above is the core idea of ​​this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0038] Figure 2 This is a schematic diagram of the structure of the first type of display panel provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the second type of display panel provided in an embodiment of the present invention, for reference. Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a display panel 10, which includes a plurality of first electrodes 110 and a light-shielding limiting structure 200 disposed on one side of the first electrodes 110. The light-shielding limiting structure 200 is provided with a first opening 210 and a second opening 220. The first opening 210 exposes at least a portion of the first electrodes 110, and the second opening 220 overlaps with the gap S between two adjacent first electrodes 110 in a first direction X1. The first direction X1 is the thickness direction of the display panel 10.

[0039] Among them, reference Figure 2 and Figure 3As shown, the display panel 10 includes a plurality of first electrodes 110, wherein the first electrodes 110 can be understood as electrode structures in the light-emitting element 1000 of the display panel 10. Specifically, taking the display panel 10 as an organic light-emitting display panel as an example, the light-emitting element 1000 also includes a light-emitting layer 120 and a second electrode 130, and the light-emitting layer 120 is disposed between the first electrodes 110 and the second electrode 130 along a first direction X1. Furthermore, the first electrodes 110 are electrically connected to the driving circuit (not specifically shown in the figure) in the array substrate 2000, thereby realizing the electrical connection between the light-emitting element 1000 and the driving circuit, ensuring that the driving circuit drives the light-emitting element 1000 to emit light for display, and realizing the display function of the display panel 10.

[0040] The light-emitting principle of the light-emitting element 1000 can be understood as follows: A certain voltage is applied to the first electrode 110 and the second electrode 130 respectively. Holes from the first electrode 110 and electrons from the second electrode 130 converge in the light-emitting layer 120, where they are further excited to emit light, thereby realizing the light emission of the light-emitting element 1000. The light-emitting layer 120 may include multiple film layer structures, such as a hole injection layer (HIL), a hole transport layer (HTL), a prime layer, an emitting layer (EML), a hole block layer (HBL), an electron transport layer (ETL), and an electron injection layer (EIL). Furthermore, the light-emitting element 1000 may have one or more light-emitting film layers; this embodiment of the invention does not specifically limit this. In other words, the specific film layer structure in the light-emitting element 1000 can be adaptively adjusted according to the type of the display panel 10; this embodiment of the invention does not provide specific examples of these.

[0041] Further reference Figure 2 and Figure 3 As shown, the display panel 10 also includes a light-shielding limiting structure 200, which has light-shielding properties and can block the transmission of light. The light-shielding limiting structure 200 is disposed on one side of the first electrode 110, specifically on the side of the first electrode 110 away from the array substrate 2000. (Reference) Figure 2 and Figure 3As shown, the light-shielding limiting structure 200 also includes a first opening 210, through which at least a portion of the first electrode 110 is exposed. Therefore, the area where the first opening 210 is located can be understood as the effective light-emitting area of ​​the light-emitting element 1000. The first opening 210 ensures the normal light emission and display of the display panel 10, thus realizing the display function of the display panel 10.

[0042] Because the light-shielding limiting structure 200 has light-shielding properties, no light reflection will occur in the area of ​​the first electrode 110 covered by the light-shielding limiting structure 200 along the first direction X1. Consequently, no light will be reflected in the area of ​​the first electrode 110 outside the first opening 210, and the light emission effect in the first opening 210 will not be affected. This ensures that the normal display of the display panel 10 is not interfered with by ambient light, guaranteeing the overall display effect of the display panel 10. Furthermore, by providing the light-shielding limiting structure 200 on one side of the first electrode 110, the light-shielding limiting structure 200 blocks the portion of the first electrode 110 exposed outside the first opening 210. This prevents the blocking or absorption of wide-viewing-angle light emitted by the light-emitting element 1000, ensuring that wide-viewing-angle light can be emitted normally and avoiding the wide-viewing-angle viewing angle problem caused by blocking wide-viewing-angle light, thus guaranteeing the wide-viewing-angle display effect of the display panel. Furthermore, by providing a light-shielding limiting structure 200 on one side of the first electrode 110, the area of ​​the light-shielding structure provided on the light-emitting side of the light-emitting element 1000 can be reduced, ensuring that the light-shielding unit does not affect the wide-viewing-angle light of the light-emitting element 1000.

[0043] Further reference Figure 2 and Figure 3 As shown, the light-shielding limiting structure 200 also includes a second opening 220, wherein along the first direction X1, the second opening 220 overlaps with the gap S between two adjacent first electrodes 110. Thus, considering the location of the second opening 220, it can be understood that the second opening 220 can isolate at least a portion of the film layers 120 of two adjacent different light-emitting elements 1000. This can avoid or reduce the leakage of holes or electrons between different light-emitting elements 1000, preventing "sneak light" between different light-emitting elements 1000, thereby improving the display contrast between different light-emitting elements 1000 and ensuring the overall display effect of the display panel 10. Optionally, the degree of separation of the light-emitting layer 120 in the second opening 220 (e.g., separating one film layer or multiple film layers) is not specifically limited in this embodiment of the invention. The degree of separation of the light-emitting layer 120 can be adjusted according to actual needs, such as the tilt of the second opening 220 or the overall thickness of the light-shielding limiting structure 200 along the first direction X1. This embodiment of the invention does not specifically limit this either.

[0044] In summary, the display panel provided in this embodiment of the invention has a light-shielding limiting structure on one side of the first electrode. By blocking the first electrode that is not exposed by the first opening, the reflection of ambient light by the first electrode that is not exposed by the first opening can be reduced or eliminated, thereby improving the display effect of the display panel. Furthermore, the setting of the light-shielding limiting structure does not affect the wide-viewing-angle light emission of the light-emitting element, ensuring the wide-viewing-angle light emission effect of the display panel. Further, the setting of the light-shielding limiting structure can also simultaneously reduce the area of ​​the light-shielding unit set on the light-emitting side of the light-emitting element, ensuring that the light-shielding structure does not affect the wide-viewing-angle light emission of the light-emitting element. In addition, the light-shielding limiting structure also includes a second opening, which can avoid or reduce leakage between two adjacent light-emitting elements, improve the display contrast of the light-emitting element, and further improve the overall display effect of the display panel.

[0045] Figure 4 This is a schematic diagram of the structure of the third type of display panel provided in the embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of the fourth type of display panel provided in the embodiments of the present invention, for reference. Figure 4 and Figure 5 As shown, the opening area of ​​the second opening 220 is S1, and the gap area between two adjacent first electrodes 110 is S2; wherein, (S1-S2) / S1≤20%.

[0046] Among them, reference Figure 4 and Figure 5 As shown, the opening area of ​​the second opening 220 is S1, and the gap area between two adjacent first electrodes 110 is S2. S1 and S2 satisfy the condition: (S1-S2) / S1≤20%, meaning that the values ​​of S1 and S2 are the same or similar. In other words, the opening area of ​​the second opening 220 is the same as or similar to the gap area between two adjacent first electrodes.

[0047] Furthermore, in the fabrication process of the display panel 10, the light-shielding and limiting structure 200 containing the second opening 220 can be used as the photolithography layer for fabricating the first electrode 110. This saves one photolithography step during the fabrication of the first electrode 110, thereby reducing the overall fabrication cost of the display panel 10. By using the light-shielding and limiting structure 200 as the photolithography layer for fabricating the first electrode 110, the gap area between two adjacent first electrodes 110 is the same as or similar to the area of ​​the second opening 220, reflecting the concept of synchronous process fabrication.

[0048] There are various ways to configure the light-shielding and limiting structure in the display panel, as follows:

[0049] Continue to refer to Figure 3 and Figure 5As shown, the light-shielding limiting structure 200 includes a black light-shielding limiting structure 200a.

[0050] For details, please refer to Figure 3 and Figure 5 As shown, the light-shielding limiting structure 200 may include a black light-shielding limiting structure 200a, meaning that the light-shielding limiting structure 200 itself can block light. Optionally, the black light-shielding limiting structure 200a may be a black photo definable layer (BPDL). This ensures a simple overall film layer structure for the display panel 10 and reduces the manufacturing cost of the display panel 10.

[0051] Continue to refer to Figure 2 and Figure 4 As shown, the light-shielding limiting structure 200 includes a pixel limiting structure 200b and a black support structure 200c. The pixel limiting structure 200b has a first opening 210 and a second opening 220, and the black support structure 200c has a first opening 210. The black support structure 200c includes a support portion 200c1, a covering portion 200c2, and a filling portion 200c3. The support portion 200c1 is located on the side of the pixel limiting structure 200b away from the first electrode 110, and is located on the side of the first electrode 110. On X1, the maximum distance between the support portion 200c1 and the first electrode 110 is greater than the maximum distance between the covering portion 200c2 and the first electrode 110; the pixel defining structure 200b includes a connected upper surface 200b1 and a side surface 200b2, the upper surface 200b1 being the surface of the pixel defining structure 200b away from the first electrode 110; the covering portion 200c2 covers the upper surface 200b1 and the side surface 200b2; the filling portion 200c3 fills the second opening 220.

[0052] For details, please refer to Figure 2 and Figure 4 As shown, the light-shielding limiting structure 200 includes a pixel limiting structure 200b, wherein the pixel limiting structure 200b is provided with a first opening 210 and a second opening 220. By providing the first opening 210, a part of the first electrode 110 can be exposed, thereby realizing the preparation of the effective light-emitting area of ​​the light-emitting element 1000. By providing the second opening 220, leakage between two adjacent light-emitting elements 1000 can be avoided, ensuring the display effect of the display panel 10.

[0053] Further reference Figure 2 and Figure 4As shown, the light-shielding limiting structure 200 also includes a black support structure 200c. The black support structure 200c has a light-blocking effect, absorbing the light transmitted to it and preventing reflected light from the first electrode from escaping. The black support structure 200c has a first opening 210, which prevents it from obstructing or interfering with the effective light-emitting area of ​​the light-emitting element 1000, thus ensuring the normal display effect of the display panel 10.

[0054] Further reference Figure 2 and Figure 4 As shown, the pixel defining structure 200b includes a connected upper surface 200b1 and a side surface 200b2. The upper surface 200b1 is the surface of the pixel defining structure 200b away from the first electrode 110, while the side surface 200b2 can be understood as the inclined surface of the pixel defining structure 200b. The black support structure 200c includes a support portion 200c1, a covering portion 200c, and a filling portion 200c3. The covering portion 200c2 covers the upper surface 200b1 and the side surface 200b2 of the pixel defining structure 200b, thereby blocking the light reflected from the first electrode 110 that is not exposed by the first opening 210. Furthermore, the supporting portion 200c1 is located on the side of the pixel-defining structure 200b away from the first electrode 110, and the maximum distance between the supporting portion 200c1 and the first electrode 110 is greater than the maximum distance between the covering portion 200c2 and the first electrode 110. Therefore, the supporting portion 200c1 can play a supporting role, ensuring the overall structural stability and reliability of the display panel 10. The supporting portion 200c1 and the covering portion 200c2 can be an integral structure or separate structures. The specific arrangement can be adjusted according to the actual manufacturing process, and this embodiment of the invention does not impose specific limitations on this. Furthermore, the filling portion 200c3 fills the second opening 220. The filling portion 200c3 can effectively block the light emitted from the side of the first electrode 110, significantly reducing the interference of light reflected by the first electrode 110 on the normal light output of the display.

[0055] It should be noted that the black support structure 200c includes a support portion 200c1, a covering portion 200c, and a filling portion 200c3, which can be referred to as... Figure 2 Central Area A or Figure 4 The middle region B is shown in the diagram.

[0056] Figure 6 This is a schematic diagram of the structure of the fifth type of display panel provided in the embodiments of the present invention. Figure 7 This is a schematic diagram of the structure of the sixth type of display panel provided in the embodiments of the present invention, for reference. Figure 6 and Figure 7As shown, the display panel 10 also includes a color resist structure 300 located on the side of the light-shielding limiting structure 200 away from the first electrode 110; the color resist structure 300 includes a plurality of color filter units 310 and a light-shielding unit 320 located between two adjacent color filter units 310; along the first direction X1, the color filter unit 310 overlaps with the first opening 210, and the light-shielding unit 320 overlaps with the second opening 220; the light-shielding limiting structure 200 includes a first light-shielding limiting portion 201 and a second light-shielding limiting portion 202 arranged adjacently, and a second opening 220 is provided in the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202; along the arrangement direction X2 of the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202, the extension length of the light-shielding unit 320 is less than the maximum distance between the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202.

[0057] Among them, reference Figure 6 and Figure 7 As shown, the display panel 10 also includes a color resist structure 300, which is located on the side of the light-shielding limiting structure 200 away from the first electrode 110. The color resist structure 300 can further adjust the light emitted from the light-emitting element 1000 through the first opening 210, thereby improving the overall display effect of the display panel 10.

[0058] For details, please refer to Figure 6 and Figure 7 As shown, the color filter structure 300 includes multiple color filter units 310, wherein the color filter units 310 are arranged overlapping with the first opening 210 along the first direction X1, which can adjust the color of the light emitted from the first opening 210 to ensure the light emission effect. For example, the color filter units 310 may include red color filter units, blue color filter units, and green color filter units, etc. The corresponding red color filter units are arranged in accordance with the first opening 210 emitting red light along the first direction X1, so as to ensure that there is no other stray light in the red light emitted by the display panel 10, thereby improving the emission effect of the red light; similarly, the corresponding blue color filter units are arranged in accordance with the first opening 210 emitting blue light along the first direction X1, so as to ensure that there is no other stray light in the blue light emitted by the display panel 10, thereby improving the emission effect of the blue light; similarly, the corresponding green color filter units are arranged in accordance with the first opening 210 emitting green light along the first direction X1, so as to ensure that there is no other stray light in the green light emitted by the display panel 10, thereby improving the emission effect of the green light. Therefore, the color filter unit 310 can improve the overall display effect of the display panel 10. The specific color settings of the color filter unit 310 can be adaptively adjusted according to the actual needs of the display panel 10, and this embodiment of the invention does not impose specific limitations on this.

[0059] Optionally, depending on the color filtering requirements of the color filter unit 310 and the manufacturing process, the thickness of different color filter units 310 may vary along the thickness direction of the display panel 10, such as... Figure 6 and Figure 7 As shown.

[0060] Further reference Figure 6 and Figure 7 As shown, the color resist structure 300 also includes a light-blocking unit 320, which has the characteristic of blocking light transmission. That is, when light is transmitted to the light-blocking unit 320, the light will be absorbed by the light-blocking unit 320. For details, refer to... Figure 6 and Figure 7 As shown, along the first direction X1, the light-shielding unit 320 overlaps with the second opening 220. The light-shielding unit 320 can prevent interference between the light emitted from two adjacent first openings 210, that is, to prevent crosstalk between different light-emitting elements 1000, thereby ensuring the overall display effect of the display panel 10.

[0061] Further reference Figure 6 and Figure 7 As shown, the light-shielding limiting structure 200 includes a first light-shielding limiting portion 201 and a second light-shielding limiting portion 202 disposed adjacently, and a second opening 220 is provided between the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202. Wherein, along Figure 6 and Figure 7 As shown, along the arrangement direction X2 of the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202, the extension length of the light-shielding unit 320 is L2, and the maximum distance between the first light-shielding limiting portion 201 and the second light-shielding limiting portion 202 is L1, where L1 > L2. That is, the size of the light-shielding unit 320 is set smaller than the maximum distance between the first light-shielding portion 201 and the second light-shielding portion 202. By reducing the size of the light-shielding unit 320 and providing the color filter unit 310, more light emitted from the first opening 210 can pass through the color filter unit 310, reducing the obstruction of light from wide viewing angles by the light-shielding unit 320 and weakening the overall color shift, thereby improving the overall light emission effect of the display panel 10. In other words, by setting the light-shielding limiting structure 200, the light reflection of the first electrode 210 at locations other than the first opening 210 can be reduced, and by reducing the size of the light-shielding unit 320, the light intensity emitted at the color filter unit 310 can be enhanced, thereby improving the overall display effect of the display panel 10.

[0062] Figure 8 This is a structural schematic diagram of the seventh type of display panel provided in the embodiments of the present invention. Figure 9 This is a schematic diagram of the structure of the eighth type of display panel provided in the embodiment of the present invention. (Continue referring to...) Figure 8and Figure 9 As shown, the display panel 10 also includes a first light-emitting element 410 and a second light-emitting element 420. The light emission brightness of the first light-emitting element 410 decreases with the light emission viewing angle at a greater rate than that of the second light-emitting element 420. A plurality of light-shielding units 320 include a first light-shielding unit 321 and a second light-shielding unit 322. Along the first direction X1, the first light-shielding unit 321 and the second light-shielding unit 322 overlap with different second openings 220. The first light-shielding unit 321 is located on the light emission path of the first light-emitting element 410, and the second light-shielding unit 322 is located on the light emission path of the second light-emitting element 420. Along the arrangement direction X3 of the first light-emitting element 410 and the second light-emitting element 420, the length of the first light-shielding unit 321 is less than the length of the second light-shielding unit 322.

[0063] Among them, reference Figure 8 and Figure 9 As shown, the display panel 10 includes multiple light-emitting elements 1000, each of which emits light of different colors, thereby achieving a color display effect. Further, each light-emitting element 1000 includes a first light-emitting element 410 and a second light-emitting element 420, wherein the brightness of the light-emitting elements of different colors varies with the degree of attenuation from the viewing angle. Specifically, the brightness of the first light-emitting element 410 attenuates more rapidly with the viewing angle than that of the second light-emitting element 420. For example, the first light-emitting element 410 may emit red light, and the second light-emitting element 420 may emit green light.

[0064] Furthermore, for some film layer structures in the display panel 10, the structure can be adaptively adjusted according to the degree of attenuation of the luminous brightness of the light-emitting element 1000 with the viewing angle, which can further ensure the overall display effect of the display panel 10. For details, refer to... Figure 8 and Figure 9 As shown, the light-blocking unit 320 includes a first light-blocking unit 321 and a second light-blocking unit 322, wherein the first light-blocking unit 321 and the second light-blocking unit 322 are disposed at different positions and overlap with different second openings 220 along the first direction X1. That is, the first light-blocking unit 321 and the second light-blocking unit 322 are two independent light-blocking units 320, which can block the transmission of different light rays.

[0065] Further reference Figure 8 and Figure 9The first light-shielding unit 321 is located on the light-emitting path of the first light-emitting element 410. That is, the first light-shielding unit 321 partially blocks the light emitted from the first light-emitting element 410 through the first opening 210, preventing crosstalk between the light emitted from the first light-emitting element 410 and the light emitted from adjacent light-emitting elements 1000. The second light-shielding unit 322 is located on the light-emitting path of the second light-emitting element 420. That is, the second light-shielding unit 322 partially blocks the light emitted from the second light-emitting element 420 through the first opening 210, preventing crosstalk between the light emitted from the second light-emitting element 420 and the light emitted from adjacent light-emitting elements 1000. In other words, the first light-blocking unit 321 can block part of the light emitted by the first light-emitting element 410, that is, prevent the light emitted by the first light-emitting element 410 from affecting the light emitted by the adjacent light-emitting element 1000, and the second light-blocking unit 322 can block part of the light emitted by the second light-emitting element 420, that is, prevent the light emitted by the second light-emitting element 420 from affecting the light emitted by the adjacent light-emitting element 1000.

[0066] Further reference Figure 8 and Figure 9 As shown, along the arrangement direction X3 of the first light-emitting element 410 and the second light-emitting element 420, the length of the first light-shielding unit 321 is less than the length of the second light-shielding unit 322. This can be understood as the width of the light-shielding unit 320 being finely adjusted according to the requirements of the light-emitting element 1000's large viewing angle brightness decay and color shift. In other words, the width of the light-shielding unit 320 corresponding to a greater degree of light decay in the light-emitting element 1000 can be smaller. Thus, the amount of light obstruction by the first light-shielding unit 321 on the light emitted from the first light-emitting element 410 is less than the amount of light obstruction by the second light-shielding unit 322 on the light emitted from the second light-emitting element 420. This increases the light emission from the first light-emitting element 410 over a large viewing angle to compensate for the greater degree of brightness decay of the first light-emitting element 410 with the viewing angle. This ensures that the first light-emitting element 410 and the second light-emitting element 420 have the same or similar large viewing angle attenuation, guaranteeing good consistency in light emission between the two elements, thereby balancing the overall light emission effect of the display panel 10.

[0067] Figure 10 This is a structural schematic diagram of the ninth type of display panel provided in an embodiment of the present invention. Figure 11 This is a structural schematic diagram of the tenth type of display panel provided in an embodiment of the present invention, for reference. Figure 10 and Figure 11As shown, the display panel 10 also includes a first light-emitting element 410 and a second light-emitting element 420. The light emission brightness of the first light-emitting element 410 decreases with the viewing angle at a greater rate than that of the second light-emitting element 420. Multiple color filter units 310 include a first color filter unit 311 and a second color filter unit 312. Along the first direction X2, the first color filter unit 311 overlaps with the first light-emitting element 410, and the second color filter unit 312 overlaps with the second light-emitting element 420. The light-shielding unit 320 includes a third light-shielding unit 323, which includes a first light-shielding portion 323a and a second light-shielding portion 323b connected together. Along the first direction X1, the first light-shielding portion 323a overlaps with the first color filter unit 311, and the second light-shielding portion 323b overlaps with the second color filter unit 312. Along the arrangement direction X4 of the first light-shielding portion 323a and the second light-shielding portion 323b, the length of the first light-shielding portion 323a is less than the length of the second light-shielding portion 323b.

[0068] Among them, reference Figure 10 and Figure 11 As shown, the display panel 10 includes multiple light-emitting elements 1000 of different colors to achieve a color display effect. Specifically, the light-emitting element 1000 includes a first light-emitting element 410 and a second light-emitting element 420, wherein the brightness of the light-emitting elements of different colors varies with the degree of attenuation as the viewing angle increases. The brightness of the first light-emitting element 410 attenuates more rapidly with the viewing angle than that of the second light-emitting element 420. For example, the first light-emitting element 410 may emit red light, and the second light-emitting element 420 may emit green light.

[0069] Further reference Figure 10 and Figure 11 As shown, the multiple color filter units 310 include a first color filter unit 311 and a second color filter unit 312. Along the first direction X2, the first color filter unit 311 overlaps with the first light-emitting element 410, and the second color filter unit 312 overlaps with the second light-emitting element 420. That is, if the first light-emitting element 410 is a red light-emitting element, the first color filter unit 311 is used to filter the red light, improving the light emission effect of the red light-emitting element; if the second light-emitting element 420 is a green light-emitting element, the second color filter unit 312 is used to filter the green light, improving the light emission effect of the green light-emitting element. By setting different color filter units 310, the overall display effect of the display panel 10 can be improved.

[0070] Furthermore, the plurality of light-shielding units 320 includes a third light-shielding unit 323, the third light-shielding unit 323 including a first light-shielding portion 323a and a second light-shielding portion 323b connected together, see reference. Figure 10 and Figure 11 As shown, the first light-shielding portion 323a and the second light-shielding portion 323b can be an integral structure. Specifically, along the first direction X1, the first light-shielding portion 323a overlaps with the first color filter unit 311, that is, the first light-shielding portion 323a can partially block the light emitted from the first light-emitting element 410 through the first opening 210 to prevent crosstalk between the light emitted from the first light-emitting element 410 and the light emitted from the adjacent light-emitting element 1000; the second light-shielding portion 323b overlaps with the second color filter unit 312, that is, the second light-shielding portion 323b can partially block the light emitted from the second light-emitting element 420 through the first opening 210 to prevent crosstalk between the light emitted from the second light-emitting element 420 and the light emitted from the adjacent light-emitting element 1000.

[0071] Further reference Figure 10 and Figure 11 As shown, the first light-blocking portion 323a and the second light-blocking portion 323b have different degrees of blocking for different colors of light, depending on the degree of attenuation of the luminance of the light-emitting element 1000 with the viewing angle. Specifically, along the arrangement direction X4 of the first light-blocking portion 323a and the second light-blocking portion 323b, the length of the first light-blocking portion 323a is shorter than the length of the second light-blocking portion 323b. This can be understood as the width of the blocking unit 320 that blocks different colors of light being finely adjusted according to the requirements of the luminance decay and color shift of the light-emitting element 1000 at a large viewing angle. In other words, the width of the light-blocking unit 320 corresponding to the greater attenuation of the light-emitting element 1000 can be smaller. Thus, the amount of light blocking by the first light-blocking portion 323a on the light emitted by the first light-emitting element 410 is less than the amount of light blocking by the second light-blocking portion 323b on the light emitted by the second light-emitting element 420. In this way, by increasing the light emission amount of the first light-emitting element 410 at a wide viewing angle, the large attenuation of the light emission brightness of the first light-emitting element 410 with the light emission viewing angle can be compensated. This can ensure that the first light-emitting element 410 and the second light-emitting element 420 have the same or similar attenuation at a wide viewing angle, and ensure good consistency of light emission of the first light-emitting element 410 and the second light-emitting element 420. This can balance the overall light emission effect of the display panel 10.

[0072] Continue to refer to Figures 6 to 11 As shown, the display panel 10 also includes a touch structure 500, which is located between the film layer where the color resist structure 300 is located and the film layer where the light-shielding limiting structure 200 is located; the touch structure 500 includes a touch electrode 510; along the thickness direction of the display panel 10, the light-shielding unit 320 covers the touch electrode 510.

[0073] Further reference Figures 6 to 11As shown, the display panel 10 also includes a touch structure 500. The touch structure 500 enables the display panel 10 to have touch functionality, thereby enriching the functionality of the display panel 10. For details, refer to... Figures 6 to 11 As shown, the touch structure 500 is disposed between the film layer containing the color resist structure 300 and the film layer containing the light-shielding limiting structure 200.

[0074] Specifically, the touch structure 500 includes a touch electrode 510. The touch electrode 510 can be a mutual capacitance electrode structure or a self-capacitance electrode structure. The specific type of the touch electrode 510 is not limited in this embodiment of the invention, and can be adapted to actual needs.

[0075] Further reference Figures 6 to 11 As shown, along the thickness direction of the display panel 10, that is, along the first direction X1, the light-shielding unit 20 covers the touch electrode 510. This can prevent the touch electrode 510 from being visible and also prevent the touch electrode 510 from reflecting ambient light from the outside environment and interfering with the normal light output of the display panel.

[0076] Optional, see reference Figures 6 to 11 As shown, the display panel 10 may further include an encapsulation layer 3000. The encapsulation layer 3000 is located on the side of the film layer containing the light-emitting element 1000 away from the array substrate 2000. By providing the encapsulation layer 3000, the overall structure of the display panel 10 can be protected. For example, the encapsulation layer 3000 may include multiple film layer structures, such as an inorganic insulating layer, an organic insulating layer, and an inorganic insulating layer in sequence along the thickness direction of the display panel 10. The specific film layer structure of the encapsulation layer 3000 can be adaptively adjusted according to actual needs. This embodiment of the invention will not elaborate on each one.

[0077] Optional, see reference Figures 6 to 11 As shown, the display panel 10 also includes a cover plate 5000, which is located on the side of the film layer where the color resist structure 300 is located away from the array substrate 2000, and is used to protect the entire display panel 10 and improve the stability of the overall structure of the display panel 10.

[0078] The display panel offers various configuration options for the light-shielding unit, as detailed below:

[0079] Continue to refer to Figures 6 to 11 As shown, the light-blocking unit 320 includes a black light-blocking unit 320a, thus achieving a good light-blocking effect.

[0080] For details, please refer to Figures 6 to 11As shown, the light-shielding unit 320 includes a black light-shielding unit 320a, which can be a black matrix (BM). That is, the light-shielding unit 320 itself is a black structure, which can directly absorb the light transmitted to the light-shielding unit 320, thereby achieving a light-blocking effect.

[0081] Figure 12 This is a schematic diagram of the structure of the eleventh type of display panel provided in the embodiment of the present invention. Figure 13 This is a schematic diagram of the structure of the twelfth type of display panel provided in the embodiments of the present invention, for reference. Figure 12 and Figure 13 As shown, the light-blocking unit 320 includes at least two layers of color filter units 310 stacked along the first direction X1.

[0082] For details, please refer to Figure 12 and Figure 13 As shown, the light-blocking unit 320 includes at least two stacked color filter units 310 along the first direction X1. While a single color filter unit 310 can only allow light of one color to pass through, stacking at least two color filter units 310 can block light, thus achieving the same light-blocking effect as the light-blocking unit 320. This demonstrates the flexibility in the arrangement of the light-blocking unit 320.

[0083] Based on the same inventive concept, embodiments of the present invention also provide a method for manufacturing a display panel. Figure 14 This is a schematic flowchart of the first method for manufacturing a display panel provided in an embodiment of the present invention. (Refer to...) Figure 14 As shown, the method for manufacturing the display panel includes:

[0084] S110. Prepare multiple first electrodes and prepare a light-shielding confinement structure.

[0085] The fabricated display panel includes multiple first electrodes, and a light-shielding limiting structure is fabricated on one side of the first electrodes.

[0086] The first electrode can be understood as the electrode structure in the light-emitting element of the display panel. Specifically, taking an organic light-emitting display panel as an example, the light-emitting element also includes a light-emitting layer and a second electrode. The light-emitting layer is disposed between the first and second electrodes along the thickness direction of the display panel. The first electrode is fabricated on one side of the array substrate and is electrically connected to the driving circuit in the array substrate. This establishes the electrical connection between the driving circuits of the light-emitting element and the light-emitting element, ensuring that the driving circuit drives the light-emitting element to emit light and display, thus realizing the display function of the display panel.

[0087] The light-emitting principle of a light-emitting element can be understood as follows: A certain voltage is applied to the first electrode and the second electrode respectively. Holes from the first electrode and electrons from the second electrode converge in the light-emitting layer, where they are further excited to emit light, thus realizing the light emission of the light-emitting element. The light-emitting layer can include multiple film layer structures, such as a hole injection layer (HIL), a hole transport layer (HTL), a prime layer, an emitting layer (EML), a hole block layer (HBL), an electron transport layer (ETL), and an electron injection layer (EIL). Furthermore, the light-emitting element can have one or more light-emitting film layers; this embodiment of the invention does not specifically limit this. In other words, the specific film layer structure in the light-emitting element can be adaptively adjusted according to the type of display panel; this embodiment of the invention does not provide specific examples of each.

[0088] Furthermore, the display panel also includes a light-shielding structure, which has light-shielding properties and can block the transmission of light. The light-shielding structure is disposed on one side of the first electrode, specifically on the side of the first electrode away from the array substrate. The light-shielding structure also includes a first opening, through which at least a portion of the first electrode is exposed. This first opening can be understood as the effective light-emitting area of ​​the light-emitting element. The first opening ensures the normal light emission and display of the display panel 10, realizing the display function of the display panel.

[0089] Because the light-shielding structure has light-shielding properties, along the thickness direction of the display panel, the area of ​​the first electrode covered by the light-shielding structure will not reflect ambient light. Consequently, there will be no light reflection outside the first opening in the first electrode, thus not affecting the light emission effect from the first opening. This ensures that the normal display of the display panel is not interfered with by ambient light, improving the overall display effect. Optionally, the light-shielding structure can be configured in various ways, such as surrounding the structure used to define the first opening with a structure that blocks light transmission; or the structure used to define the first opening may itself be a structure that blocks light transmission.

[0090] Furthermore, the light-shielding limiting structure also includes a second opening, wherein the second opening overlaps with the gap between two adjacent first electrodes along the thickness direction of the display panel. Thus, considering the location of the second opening, it can be understood that the second opening can isolate at least a portion of the film layers in the light-emitting layers of two adjacent different light-emitting elements. This avoids leakage of holes or electrons between different light-emitting elements, preventing leakage and thus improving the overall display effect of the display panel. Optionally, the degree of separation of the light-emitting layer in the light-emitting element through the second opening (e.g., separating one film layer or multiple film layers) is not specifically limited in this embodiment of the invention. The degree of separation of the light-emitting layer can be adjusted according to actual needs, such as the tilt of the second opening or the overall thickness of the light-shielding limiting structure along the thickness direction of the display panel; this embodiment of the invention does not specifically limit this.

[0091] In summary, this invention provides a method for manufacturing a display panel, wherein a light-shielding limiting structure is provided on one side of the first electrode. By blocking the first electrode that is not exposed by the first opening through the light-shielding limiting structure, the reflection of ambient light by the first electrode that is not exposed by the first opening can be reduced or eliminated, thereby improving the display effect of the display panel. Furthermore, the setting of the light-shielding limiting structure does not affect the wide-viewing angle light emission of the light-emitting element, ensuring the wide-viewing angle light emission effect of the display panel. Further, the setting of the light-shielding limiting structure can also simultaneously reduce the area of ​​the light-shielding unit provided on the light-emitting side of the light-emitting element, ensuring that the light-shielding structure does not affect the wide-viewing angle light emission of the light-emitting element. In addition, the light-shielding limiting structure also includes a second opening, which can avoid or reduce leakage between two adjacent light-emitting elements, improve the display contrast of the light-emitting element, and further improve the overall display effect of the display panel.

[0092] Figure 15 This is a schematic flowchart of the second method for manufacturing a display panel provided in an embodiment of the present invention. Figure 16 This is a schematic diagram of the process of manufacturing a first display panel according to an embodiment of the present invention, with reference to... Figure 15 and Figure 16 As shown, the method for manufacturing the display panel also includes:

[0093] S210, Prepare the first electrode layer.

[0094] For details, please refer to Figure 16 As shown in step a, a first electrode layer 110a is fabricated. The first electrode layer 110a is disposed on one side of the array substrate 2000.

[0095] S220. Prepare a light-shielding limiting layer on one side of the first electrode layer.

[0096] For details, please refer to Figure 16As shown in step b, a light-shielding limiting layer 200a1 is prepared on one side of the first electrode layer 110a. The light-shielding limiting layer 200a1 has light-shielding properties. A light-shielding limiting structure can be prepared by subsequently adjusting the light-shielding limiting layer 200a1.

[0097] S230, a patterned light-shielding limiting layer is used to prepare a plurality of second openings in the light-shielding limiting layer.

[0098] For details, please refer to Figure 16 As shown in step c, patterned etching is performed on the light-shielding limiting layer 200a1 to prepare the second opening 220. The second opening 220 penetrates the light-shielding limiting layer 200a1.

[0099] S240, Pattern the first electrode layer through the second opening to form a plurality of first electrodes.

[0100] For details, please refer to Figure 16 As shown in step d, the second opening 220 can be used as the photoresist layer for fabricating the first electrode 110, and the first electrode layer 110a can be etched using the second opening 220 to form a plurality of first electrodes 110.

[0101] Furthermore, during the fabrication of the display panel, specifically when fabricating the gap between two adjacent first electrodes, a light-shielding layer containing a second opening can be used as the photolithography layer for fabricating the first electrode. This would save a photolithography step during the fabrication of the first electrode, thereby reducing the overall manufacturing cost of the display panel.

[0102] S250, A patterned light-shielding limiting layer is used to prepare a plurality of first openings in the light-shielding limiting layer to obtain a light-shielding limiting structure.

[0103] For details, please refer to Figure 16 As shown in step e, the light-shielding limiting layer 200a1 is patterned and etched to form a plurality of first openings 210, and the first openings 210 expose at least a portion of the first electrode 110. The first openings 210 can be understood as pixel openings in the display panel. The first openings 210 and the second openings 220 are fabricated in the light-shielding limiting layer 200a1 through steps S230 and S250, thereby forming the light-shielding limiting structure 200.

[0104] Optionally, the light-shielding limiting structure may include a black light-shielding limiting structure, meaning the light-shielding limiting structure itself can block light. Optionally, the black light-shielding limiting structure may be a black photodefinable layer. This ensures a simple overall film structure for the display panel, reducing the manufacturing cost. Further, refer to... Figure 16As shown in step f, after fabricating the light-shielding and limiting structure 200, the light-emitting layer 120 and the second electrode 130 can be fabricated. The structure composed of the first electrode 110, the light-emitting layer 120, and the second electrode 130 is equivalent to the light-emitting element 1000 in the display panel. By driving the light-emitting element 1000 to emit light, the display effect of the display panel 10 is achieved.

[0105] In summary, the present invention provides a method for manufacturing a display panel, which specifically describes the preparation method of the light-shielding and limiting structure, demonstrating the diversity of preparation methods for the light-shielding and limiting structure.

[0106] Figure 17 This is a schematic flowchart of the third method for manufacturing a display panel provided in this embodiment of the invention. Figure 18 This is a schematic diagram of the process of manufacturing a second display panel according to an embodiment of the present invention, for reference. Figure 17 and Figure 18 As shown, the method for manufacturing the display panel also includes:

[0107] S310, Prepare the first electrode.

[0108] For details, please refer to Figure 18 As shown in step a, a first electrode 110 is fabricated. The first electrode 110 is disposed on one side of the array substrate 2000.

[0109] S320, Prepare the pixel-defining layer.

[0110] For details, please refer to Figure 18 As shown in step b, a pixel-defining layer 200ba is prepared, and a pixel-defining structure 200b can be formed by patterning and etching the pixel-defining layer 200ba.

[0111] S330, Pattern the pixel-defining layer to prepare a first opening and a second opening in the pixel-defining layer to obtain a pixel-defining structure.

[0112] For details, please refer to Figure 18 As shown in step c, pixel-defining structures 200b are formed by patterning the pixel-defining layer 200ba. Specifically, a first opening 210 and a second opening 220 are fabricated in the pixel-defining layer 200ba. The first opening 210 penetrates the pixel-defining layer 200ba, exposing at least a portion of the first electrode 110. The second opening penetrates at least a portion of the pixel-defining layer 200ba. Figure 18 The second opening 220 penetrates the entire pixel-limiting layer 200bc as an example.

[0113] S340, Prepare a black support layer.

[0114] For details, please refer to Figure 18 As shown in step d, a black support layer 200ca is prepared, and the black support layer 200ca covers the pixel defining structure 200b and the first opening 210 and the second opening 220. The black support layer 200ca has light-shielding properties, and subsequent adjustments to the black support layer 200ca, combined with the pixel defining structure 200b, form a corresponding light-shielding defining structure.

[0115] S350 uses a grayscale mask process to pattern a black support layer to form support, covering and filling portions.

[0116] For details, please refer to Figure 18 As shown in step e, the black support layer is patterned and etched using a grayscale mask process to form the support portion 200c1, the covering portion 200c2, and the filling portion 200c3.

[0117] Specifically, the covering portion covers the surface structure on the side of the pixel-defining structure away from the array substrate. In other words, the covering portion is equivalent to covering the pixel-defining structure, thereby blocking the light at the pixel-defining structure. This ensures that the area of ​​the first electrode covered by the pixel-defining structure will not reflect light, and thus will not affect the light emission at the first opening, ensuring the overall display effect of the display panel.

[0118] Furthermore, the supporting portion is located on the side of the pixel-defining structure furthest from the first electrode, and the maximum distance between the supporting portion and the first electrode is greater than the maximum distance between the covering portion and the first electrode. Therefore, the supporting portion can also play a supporting role, ensuring the overall structural stability and reliability of the display panel. The supporting portion and the covering portion can be an integral structure or separate structures; the specific arrangement can be adjusted according to the actual manufacturing process, and this embodiment of the invention does not impose specific limitations on this. Furthermore, the filling portion fills the second opening. On the one hand, the filling portion can effectively block the light emitted from the side of the first electrode, thereby ensuring that the normal display of the display panel is not interfered with by external ambient light. On the other hand, the filling portion can also reduce the film layer height difference in the second opening, which is beneficial to ensuring the stability of the overall film layer structure of the display panel and improving the overall structural stability of the display panel.

[0119] For details, please refer to Figure 18As shown in step e, the pixel defining structure 200b includes a connected upper surface 200b1 and a side surface 200b2. The upper surface 200b1 is the surface of the pixel defining structure 200b away from the first electrode 110, while the side surface 200b2 can be understood as the inclined surface of the pixel defining structure 200b. The black support structure 200c includes a support portion 200c1, a covering portion 200c, and a filling portion 200c3. The covering portion 200c2 covers the upper surface 200b1 and the side surface 200b2 of the pixel defining structure 200b, thereby blocking the light reflected from the first electrode 110 that is not exposed by the first opening 210. Furthermore, the supporting portion 200c1 is located on the side of the pixel-defining structure 200b away from the first electrode 110, and the maximum distance between the supporting portion 200c1 and the first electrode 110 is greater than the maximum distance between the covering portion 200c2 and the first electrode 110. Therefore, the supporting portion 200c1 can play a supporting role, ensuring the overall structural stability and reliability of the display panel 10. The supporting portion 200c1 and the covering portion 200c2 can be an integral structure or separate structures. The specific arrangement can be adjusted according to the actual manufacturing process, and this embodiment of the invention does not impose specific limitations on this. Furthermore, the filling portion 200c3 fills the second opening 220. The filling portion 200c3 can effectively block the light emitted from the side of the first electrode 110, significantly reducing the interference of light reflected by the first electrode 110 on the normal light output of the display.

[0120] Further reference Figure 18 As shown in step f, after fabricating the light-shielding and limiting structure 200, the light-emitting layer 120 and the second electrode 130 can be fabricated. The structure composed of the first electrode 110, the light-emitting layer 120, and the second electrode 130 is equivalent to the light-emitting element 1000 in the display panel. By driving the light-emitting element 1000 to emit light, the display effect of the display panel 10 is achieved.

[0121] In summary, the embodiment of the present invention provides another method for manufacturing a display panel, which specifically describes the preparation method of the light-shielding and limiting structure, demonstrating that the preparation methods of the light-shielding and limiting structure are diverse.

[0122] Based on the same inventive concept, embodiments of the present invention also provide a display device. Figure 19 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention, such as... Figure 19 As shown, the display device 1 includes the display panel 10 described in any of the above embodiments. Therefore, the display device 1 provided in this embodiment of the invention possesses the corresponding beneficial effects described in the above embodiments, which will not be repeated here. The display device 1 can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device.

[0123] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A display panel, characterized by, The display panel comprises a plurality of first electrodes and a light-shielding limiting structure disposed on one side of the first electrodes; The light-shielding limiting structure is provided with a first opening and a second opening, the first opening exposes at least part of the first electrode, and the second opening overlaps a gap between two adjacent first electrodes in a first direction; The first direction is the thickness direction of the display panel.

2. The display panel of claim 1, wherein, The opening area of the second opening is S1, and the gap area between two adjacent first electrodes is S2; Wherein, (S1-S2) / S1≤20%.

3. The display panel of claim 1, wherein, The light-shielding limiting structure comprises a black light-shielding limiting structure.

4. The display panel of claim 1, wherein, The light-shielding limiting structure comprises a pixel limiting structure and a black support structure, the pixel limiting structure is provided with the first opening and the second opening, and the black support structure is provided with the first opening; The black support structure comprises a support part, a cladding part and a filling part; The support part is located on the side of the pixel limiting structure away from the first electrode, and in the first direction, the maximum distance between the support part and the first electrode is greater than the maximum distance between the cladding part and the first electrode; The pixel limiting structure comprises a connected upper surface and side surface, and the upper surface is the surface of the pixel limiting structure away from the first electrode; The cladding part covers the upper surface and the side surface; The filling part fills the second opening.

5. The display panel of claim 1, wherein, The display panel further comprises a color resistance structure located on the side of the light-shielding limiting structure away from the first electrode; The color resistance structure comprises a plurality of color filter units and a light-shielding unit located between two adjacent color filter units; along the first direction, the color filter unit overlaps the first opening, and the light-shielding unit overlaps the second opening; The light-shielding limiting structure comprises a first light-shielding limiting part and a second light-shielding limiting part arranged adjacent to each other, and the first light-shielding limiting part and the second light-shielding limiting part are provided with the second opening; Along the arrangement direction of the first light-shielding limiting part and the second light-shielding limiting part, the extension length of the light-shielding unit is less than the maximum distance between the first light-shielding limiting part and the second light-shielding limiting part.

6. The display panel of claim 5, wherein, The display panel further comprises a first light-emitting element and a second light-emitting element, and the attenuation degree of the light-emitting brightness of the first light-emitting element with the light-emitting viewing angle is greater than the attenuation degree of the light-emitting brightness of the second light-emitting element with the light-emitting viewing angle; The plurality of light-shielding units comprises a first light-shielding unit and a second light-shielding unit, along the first direction, the first light-shielding unit and the second light-shielding unit overlap different second openings; the first light-shielding unit is located on the light-emitting path of the first light-emitting element, and the second light-shielding unit is located on the light-emitting path of the second light-emitting element; Along the arrangement direction of the first light-emitting element and the second light-emitting element, the length of the first light-shielding unit is less than the length of the second light-shielding unit.

7. The display panel of claim 5, wherein, The display panel further comprises a first light emitting element and a second light emitting element, a degree of attenuation of light emitting brightness of the first light emitting element with respect to a light emitting viewing angle is greater than a degree of attenuation of light emitting brightness of the second light emitting element with respect to the light emitting viewing angle; The plurality of color filter units comprises a first color filter unit and a second color filter unit, along the first direction, the first color filter unit overlaps the first light emitting element, and the second color filter unit overlaps the second light emitting element; The plurality of light shielding units comprises a third light shielding unit, the third light shielding unit comprises a first light shielding subunit and a second light shielding subunit connected to each other, along the first direction, the first light shielding subunit overlaps the first color filter unit, and the second light shielding subunit overlaps the second color filter unit; Along an arrangement direction of the first light shielding subunit and the second light shielding subunit, a length of the first light shielding subunit is less than a length of the second light shielding subunit.

8. The display panel of claim 5, wherein, The display panel further comprises a touch structure, the touch structure is located between a film layer where the color resistance structure is located and a film layer where the light shielding definition structure is located; The touch structure comprises a touch electrode, and along a thickness direction of the display panel, the light shielding unit covers the touch electrode.

9. The display panel of claim 5, wherein, The light shielding unit comprises a black light shielding unit.

10. The display panel of claim 5, wherein, The light shielding unit comprises at least two layers of the color filter units arranged in a stack along the first direction.

11. A method for manufacturing a display panel, characterized by, Comprising: Preparation of a plurality of first electrodes and preparation of a light shielding definition structure; The light shielding definition structure is provided with a first opening and a second opening, the first opening exposes at least part of the first electrode, and the second opening overlaps a gap between two adjacent first electrodes in a first direction; The first direction is a thickness direction of the display panel.

12. The method of claim 11, wherein, Preparation of a plurality of first electrodes and a light shielding definition structure, comprising: Preparation of a first electrode layer; Preparation of a light shielding definition layer on one side of the first electrode layer; Patterning the light shielding definition layer to prepare a plurality of second openings in the light shielding definition layer, the second openings penetrating through the light shielding definition layer; Patterning the first electrode layer through the second openings to form a plurality of the first electrodes; Patterning the light shielding definition layer to prepare a plurality of first openings in the light shielding definition layer to obtain the light shielding definition structure.

13. The preparation method according to claim 11, characterized in that, The light shielding definition structure comprises a pixel definition structure and a black support structure; Preparation of a light shielding definition structure, comprising: Preparation of a pixel definition layer; Patterning the pixel definition layer to prepare the first opening and the second opening in the pixel definition layer to obtain the pixel definition structure; the first opening penetrates through the pixel definition layer to expose the first electrode, and the second opening penetrates through at least part of the pixel definition layer; Preparation of a black support layer, the black support layer covers the pixel definition structure and the first opening and the second opening; The black support layer is patterned by a gray-tone mask process to form a support section, a covering section and a filling section, the support section is located on the side of the pixel defining structure away from the first electrode, and in the first direction, the maximum distance between the support section and the first electrode is greater than the maximum distance between the covering section and the first electrode; the pixel defining structure comprises a connected upper surface and side surface, the upper surface is the surface of the pixel defining structure away from the first electrode; the covering section covers the upper surface and the side surface; the filling section fills the second opening.

14. A display device comprising: The display module comprises the display module of any one of claims 1-10.

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