Display panel, preparation method thereof and display device

Abstract

The invention provides a display panel, a preparation method thereof and a display device, the display panel comprises an array substrate and a plurality of light-emitting devices, and the light-emitting devices are located on one side of the array substrate; the light-emitting device is electrically connected with the array substrate. The display panel further comprises a shading part, and the orthographic projection of the shading part on the array substrate at least partially surrounds the orthographic projection of the light-emitting device on the array substrate. The shading part comprises a main body part, and a gap is formed between the main body part and the light-emitting device in the direction parallel to the plane where the array substrate is located. In the invention, the existence of the gap means that the shading part can not be in contact with at least part of the side surface of the light-emitting device, so that the probability that the shading part climbs to the surface, far away from the array substrate, of the light-emitting device in the preparation process is reduced. In addition, the gap can expose part of the side face of the light-emitting device, and the probability that light emitted by the side face of the light-emitting device is not absorbed by the shading part is increased.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a method for preparing the same, and a display device. Background Art

[0002] In order to reduce the reflection of external light by some structures in the display panel, a shading material is usually filled between the light-emitting devices to form a shading structure, such as a shading layer. However, in the process of manufacturing the display panel, since the spacing between adjacent light-emitting devices is usually small, the shading material filled between the light-emitting devices can easily climb to the light-emitting surface of the light-emitting device due to capillary phenomena, hindering the light-emitting process and affecting the display effect. Summary of the invention

[0003] In view of this, the present application provides a display panel and a method for manufacturing the same, and a display device, so as to solve the problem of the above-mentioned light-shielding material hindering light emission.

[0004] In a first aspect, an embodiment of the present application provides a display panel, including an array substrate and a plurality of light-emitting devices, wherein the light-emitting devices are located on one side of the array substrate and are electrically connected to the array substrate.

[0005] The display panel further includes a shading portion, the orthographic projection of the shading portion on the array substrate at least partially surrounds the orthographic projection of the light emitting device on the array substrate. The shading portion includes a main body portion, and a gap is included between the main body portion and the light emitting device along a direction parallel to the plane where the array substrate is located.

[0006] In a second aspect, an embodiment of the present application provides a method for preparing a display panel, which is used to prepare the display panel provided in the first aspect.

[0007] In a third aspect, an embodiment of the present application provides a display device, comprising a display panel provided in the first aspect.

[0008] In the present application, the presence of the above-mentioned gap means that the light shielding portion may not contact at least part of the side surface of the light emitting device, thereby reducing the probability that the light shielding portion climbs onto the surface of the light emitting device away from the array substrate during the preparation process. In addition, the gap can expose part of the side surface of the light emitting device, which helps to increase the probability that the light emitted from the side surface of the light emitting device is not absorbed by the light shielding portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 A schematic diagram of a manufacturing process of a display panel related to the present application;

[0011] Figure 2 A schematic top view of a partial structure of a display panel provided in the present application;

[0012] Figure 3 for Figure 2 A schematic cross-sectional view of a partial structure of a display panel along section line AA' is shown;

[0013] Figure 4 is a structural schematic diagram of a part of the structure of a light emitting device;

[0014] Figure 5 for Figure 3 A schematic projection diagram of a partial structure of a display panel shown;

[0015] Figure 6 A schematic top view of a partial structure of a display panel provided in the present application;

[0016] Figure 7 for Figure 6 A schematic cross-sectional view of a partial structure of a display panel along a section line BB' is shown;

[0017] Figure 8 for Figure 6 A schematic projection diagram of a partial structure of a display panel shown;

[0018] Fig. 9 A schematic top view of a portion of the structure of a display panel during preparation;

[0019] Fig.10 for Fig. 9 A schematic cross-sectional view of a portion of the structure shown along section line CC';

[0020] Fig.11 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA';

[0021] Fig.12 A schematic top view of a portion of the structure of a display panel during preparation;

[0022] Fig.13 for Fig.12 A schematic cross-sectional view of a portion of the structure shown along section line DD';

[0023] Fig.14 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA';

[0024] Fig.15for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA';

[0025] Fig.16 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA';

[0026] Fig.17 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA';

[0027] Fig.18 for Figure 2 A schematic cross-sectional view of a partial structure of a display panel along a section line EE' is shown;

[0028] Fig.19 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0029] Fig. 20 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0030] Fig.21 A schematic top view of a partial structure of a display panel provided in the present application;

[0031] Fig. 22 for Fig.21 A schematic cross-sectional view of a partial structure of a display panel along a section line FF' is shown;

[0032] Fig.23 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF';

[0033] Fig.24 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF';

[0034] Fig.25 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF';

[0035] Fig.26 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF';

[0036] Fig. 27 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF';

[0037] Fig.28 A schematic top view of a partial structure of a display panel provided in the present application;

[0038] Fig.29 for Fig.28 A schematic cross-sectional view of a partial structure of a display panel along a section line GG' is shown;

[0039] Fig.30 is a schematic diagram showing the variation of light intensity of light emitting devices of different colors with viewing angle;

[0040] Fig.31 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0041] Fig.32 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0042] Fig.33 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0043] Fig.34 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0044] Fig.35 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0045] Fig.36 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0046] Fig.37 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE';

[0047] Fig.38 A schematic top view of a partial structure of a display panel provided in the present application;

[0048] Fig.39 for Fig.38 A schematic cross-sectional view of a partial structure of a display panel along a section line HH' is shown;

[0049] Fig.40 A schematic top view of a partial structure of a display panel provided in the present application;

[0050] Fig.41 for Fig.40 A schematic cross-sectional view of a portion of the structure of the display panel shown along a section line JJ';

[0051] Fig.42 A schematic diagram of some steps for preparing the display panel provided in this application;

[0052] Fig.43 for Fig.42 A flow chart showing some of the preparation steps;

[0053] Fig.44 for Fig.42 A schematic diagram of some of the preparation steps shown;

[0054] Fig.45 for Fig.42 A schematic diagram of some of the preparation steps shown;

[0055] Fig.46 A schematic diagram of a display device provided in the present application. DETAILED DESCRIPTION

[0056] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0057] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0058] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0059] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] Figure 1 A schematic diagram of a preparation process of a display panel related to the present application.

[0061] In the prior art, Figure 1As shown, the preparation process of the display panel may include: transferring the light-emitting device 02 to the array substrate 03 by using a transfer carrier, bonding the light-emitting device 02 to the array substrate 03, so as to achieve electrical connection between the light-emitting device 02 and the driving circuit on the array substrate 03.

[0062] Generally, in the direction perpendicular to the plane where the display panel is located, the area where the partial structure (such as metal wiring) included in the driving circuit on the array substrate 03 is located often overlaps with the area between adjacent light-emitting devices 02. Since the above partial structure can reflect the external light incident on the display panel, in order to prevent the light reflection characteristics of the above partial structure from affecting the display effect of the display panel, it is usually selected to fill the light-shielding material 04 that can block the propagation of external light between the adjacent light-emitting devices 02 to form a light-shielding layer after the light-emitting device 02 is bonded to the array substrate 03. In the process of preparing the above light-shielding layer, the light-shielding material 04 is often fluid (can be liquid) when it is filled between the adjacent light-emitting devices 02. Since the distance between the adjacent light-emitting devices 02 is small, the light-shielding material 04 and the surface of the light-emitting device 02 are easily infiltrated, and the light-shielding material 04 in a fluid state is easy to climb along the side of the light-emitting device 02 to the surface of the light-emitting device 02 away from the array substrate 03, resulting in the light-shielding layer finally formed will hinder the light output of the surface of the light-emitting device 02 away from the array substrate 03, affecting the display effect.

[0063] Figure 2 A schematic top view of a partial structure of a display panel provided in the present application. Figure 3 for Figure 2 The schematic cross-sectional view of a portion of the structure of the display panel shown in FIG. Figure 4 A schematic diagram of the structure of a part of the light emitting device.

[0064] In view of the above problems, combined with Figure 2 and Figure 3 The present application provides a display panel 10, which includes an array substrate 11 and a plurality of light-emitting devices 12. The light-emitting devices 12 are located on one side of the array substrate 11 and are electrically connected to the array substrate 11. The light-emitting devices 12 may include a light-emitting body 121 and a connecting portion 122. The light-emitting body 121 may be electrically connected to the array substrate 11 through the connecting portion 122. Figure 4 As shown, the light emitting body 121 may include a first semiconductor layer 121a, a light emitting layer 121b and a second semiconductor layer 121c stacked. Further, the first semiconductor layer 121a may include an N-type semiconductor layer, the light emitting layer 121b may include a multiple quantum well structure, and the second semiconductor layer 121c may include a P-type semiconductor layer.

[0065] The array substrate 11 may be provided with a signal line (not shown in the figure), which can transmit the electrical signal required for emitting light to the light-emitting device 12 electrically connected thereto, and the film layer where the signal line is located may be located on the side of the connecting portion 122 away from the light-emitting body 121.

[0066] The light emitting device 12 may be at least one of a micro light emitting diode (Micro-LED) and a sub-millimeter light emitting diode (Min i-LED).

[0067] Figure 5 for Figure 3 The projection diagram of the partial structure of the display panel shown is for easy understanding. Figure 5 Only the projections corresponding to the partial structures of the light emitting device and the light shielding portion are shown.

[0068] The display panel 10 further includes a light shielding portion 13. Figure 3 and Figure 5 , the orthographic projection S1 of the light shielding portion 13 on the array substrate 11 at least partially surrounds the orthographic projection S2 of the light emitting device 12 on the array substrate 11. The constituent material included in the light shielding portion 13 may be the same as the constituent material included in the black matrix (Black Matrix). The light shielding portion 13 includes a main body portion 131, and a gap is included between the main body portion 131 and the light emitting device 12 along a direction parallel to the plane where the array substrate 11 is located.

[0069] Among them, combined Figure 3 and Figure 5 The above-mentioned gap may be a groove S, and the inner surface of the groove S may include a part of the side surface of the light emitting device 12, a part of the surface of the light shielding portion 13 facing the light emitting device 12, and a part of the surface of the light shielding portion 13 away from the array substrate 11. The orthographic projection S11 of the groove S on the array substrate 11 at least partially surrounds the orthographic projection S2 of the light emitting device 12 on the array substrate 11.

[0070] In this embodiment, the presence of the gap (groove S) means that the light shielding portion 13 may not contact at least part of the side surface of the light emitting device 12, thereby reducing the probability that the light shielding portion 13 climbs onto the surface of the light emitting device 12 away from the array substrate 11 during the preparation process. In addition, the groove S can expose part of the side surface of the light emitting device 12, so that the part of the side surface does not contact the light shielding portion 13, which helps to increase the probability that the light emitted from the side surface of the light emitting device 12 is not absorbed by the light shielding portion 13.

[0071] Figure 6 A schematic top view of a partial structure of a display panel provided in the present application. Figure 7 for Figure 6 The schematic cross-sectional view of a part of the structure of the display panel shown in FIG. Figure 8 for Figure 6 The projection diagram of the partial structure of the display panel shown is for easy understanding. Figure 7 Only the projections corresponding to the partial structures of the light emitting device and the light shielding portion are shown.

[0072] Combination Figure 6 , Figure 7 and Figure 8 The gap may also be a first opening 13a that penetrates the light shielding portion 13, and the orthographic projection S3 of the first opening 13a on the array substrate 11 at least partially surrounds the orthographic projection S2 of the light emitting device 12 on the array substrate. By providing the first opening 13a, the light shielding portion 13 is not in contact with the side surface of the light emitting body 121, which helps to increase the effective light emitting area of ​​the light emitting body 121 and improve the display effect.

[0073] In one embodiment of the present application, Figure 3 As shown, the light shielding portion 13 further includes a first portion 132, the first portion 132 is located between the main body 131 and the light emitting device 12, and at least part of the light emitting device 12 is adjacent to the first portion 132. The orthographic projection S11 of the first portion 132 on the array substrate 11 may at least partially surround the orthographic projection S2 of the light emitting device 12 on the array substrate 11. The bottom surface of the groove S may include a surface of the first portion 132 away from the array substrate 11.

[0074] The surface of the first portion 132 away from the array substrate 11 is closer to the array substrate 11 than the surface of the main body 131 away from the array substrate 11, and the surface of the first portion 132 away from the array substrate 11 is closer to the array substrate 11 than the surface of the light emitting device 12 away from the array substrate 11. Figure 2 As shown, along the direction perpendicular to the plane where the display panel 10 is located, the distance between the surface of the first portion 132 away from the array substrate 11 and the surface of the light-emitting device 12 away from the array substrate 11 is h1, and the distance between the surface of the main body 131 away from the array substrate 11 and the surface of the light-emitting device 12 away from the array substrate 11 is h2, where h1>h2. At this time, the surface of the first portion 132 away from the array substrate 11 and the surface of the main body 131 facing the light-emitting device 12 can serve as part of the inner wall of the groove S, and the groove S can expose part of the side surface of the light-emitting body 121, thereby increasing the light emission angle of the light-emitting body 121, which is conducive to achieving large-angle display.

[0075] Fig. 9 is a schematic top view of a portion of the structure of a display panel during its preparation process, Fig.10 for Fig. 9 The schematic cross-sectional view of the partial structure shown along the section line CC' is as follows: Fig. 9 , Fig.10The partial structures of the display panel shown in the figure are structures that appear during the preparation process, and it does not mean that all the structures appearing in the figure are the structures included when the display panel is finally prepared.

[0076] Combination Fig. 9 and Fig.10 In the process of preparing the display panel 10, an optical glue 06 can be optionally provided, and the optical glue 06 can contact at least a portion of the surface of the light-emitting body 121 of the light-emitting device 12 away from the array substrate 11 and contact at least a portion of the side surface of the light-emitting body 121. Therefore, when filling the light-shielding material 04, the optical glue 06 can isolate the portion of the light-emitting body 121 that contacts it from the light-shielding material 04, and prevent the light-shielding material 04 from climbing to the surface of the light-emitting body 121 away from the array substrate 11, thereby avoiding affecting the light output of the light-emitting device 12. In addition, even if part of the light-shielding material 04 climbs and adheres to the surface of the optical glue 06 away from the array substrate 11, when the optical glue 06 is removed in the subsequent process, the part of the light-shielding material 04 can be taken away, avoiding the part of the light-shielding material 04 affecting the light output effect of the light-emitting device 12.

[0077] After the light shielding material 04 is filled between adjacent light emitting devices 12, the light shielding material 04 will contact the portion of the optical adhesive 06 that contacts the side of the light emitting body 121. After the light shielding material 04 is cured, the light shielding portion 13 including the main body 131 and the first portion 132 can be formed. It should be noted that since the portion of the optical adhesive 06 that contacts the side of the light emitting body 121 (which can be called the side portion) will occupy part of the space between adjacent light emitting devices 12, the light shielding material 04 can climb up along the side portion under the condition of limited accommodation space. At this time, the minimum distance (corresponding to h2) between the surface of the light shielding material 04 away from the array substrate 11 and the surface of the light emitting device 12 away from the array substrate 11 can be less than the maximum distance (corresponding to h1) between the above-mentioned side portion and the surface of the light emitting device 12 away from the array substrate 11.

[0078] In addition, the optical glue 06 may be the transfer glue mentioned above for transferring the light-emitting device 12 .

[0079] Fig.11 for Figure 2 Another schematic cross-sectional view of a partial structure of a display panel along the section line AA′ is shown.

[0080] In one possible implementation, Fig.11 As shown, the surface of the first portion 132 away from the array substrate 11 is flush with the surface of the main body 131 away from the array substrate 11, and the surface of the first portion 132 away from the array substrate 11 is closer to the array substrate 11 than the surface of the light emitting device 12 away from the array substrate 11.

[0081] Fig.12 is a schematic top view of a portion of the structure of a display panel during its preparation process, Fig.13 for Fig.12 The schematic cross-sectional view of the partial structure shown along the section line DD' is as follows: Fig.12 , Fig.13 The partial structure of the display panel shown in the figure is the structure that appears during the preparation process and does not represent Fig.10 All structures appearing in the figure are structures included when the display panel is manufactured.

[0082] Combination Fig.12 and Fig.13 In the process of manufacturing the display panel 10, the optical glue 06 may contact at least a portion of the surface of the light-emitting body 121 of the light-emitting device 12 away from the array substrate 11 and contact at least a portion of the side surface of the light-emitting body 121. In addition, the optical glue 06 corresponding to adjacent light-emitting devices 12 may be an integrated structure, and the surface of the portion of the optical glue 06 located between adjacent light-emitting devices 12 facing the array substrate 11 may be parallel to the plane where the array substrate 11 is located.

[0083] Fig.14 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA' is shown. Fig.15 for Figure 2 Another schematic cross-sectional view of a partial structure of a display panel along the section line AA′ is shown.

[0084] In one embodiment of the present application, Fig.14 and Fig.15 , the surface of the light emitting device 12 away from the array substrate 11 is closer to the array substrate 11 than the surface of the main body 131 away from the array substrate 11, or the surface of the light emitting device 12 away from the array substrate 11 is flush with the surface of the main body 131 away from the array substrate 11. Along the direction perpendicular to the plane where the display panel 10 is located, the distance between the surface of the main body 131 away from the array substrate 11 and the surface of the light emitting device 12 away from the array substrate 11 is h2, where h2≥0.

[0085] In the embodiment of the present application, along the direction perpendicular to the plane where the display panel 10 is located, part of the signal lines on the array substrate 11 can overlap with the area between the adjacent light-emitting devices 12, and the part of the signal lines can reflect the external light propagating thereon. The scheme of setting the shading portion 13 in the present application can reduce the influence of the reflection phenomenon of the part of the signal lines on the display effect. It should be noted that the greater the thickness of the shading portion 13, the better the shielding effect of the shading portion 13 on the above-mentioned part of the signal lines. Therefore, when h2≥0, the thickness of the shading portion 13 is relatively large, and this setting method helps to prevent external light from propagating to the film layer where the above-mentioned part of the signal lines is located, thereby improving the display effect.

[0086] Fig.16 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line AA' is shown. Fig.17 for Figure 2 Another schematic cross-sectional view of a partial structure of a display panel along the section line AA′ is shown.

[0087] In one embodiment of the present application, Fig.16 and Fig.17 The light-emitting device 12 includes a light-emitting body 121, and a surface of the first portion 132 away from the array substrate 11 is closer to the array substrate 11 than a surface of the light-emitting body 121 close to the array substrate 11 or a surface of the first portion 132 away from the array substrate 11 is flush with a surface of the light-emitting body 121 close to the array substrate 11.

[0088] At this time, a distance h1 between a surface of the first portion 132 away from the array substrate 11 and a surface of the light emitting device 12 away from the array substrate 11 and a thickness h4 of the light emitting body 121 may satisfy: h1 ≥ h4.

[0089] In the embodiment of the present application, the surface of the light-emitting body 121 facing the main body 131 may not be in contact with the shading portion 13. Compared with the situation where the shading portion 13 covers the surface of the light-emitting body 121 facing the main body 131, at this time, the shading effect of the shading portion 13 on the surface of the light-emitting body 121 facing the main body 131 is weakened, and the light output area of ​​the light-emitting body 121 is expanded.

[0090] In one embodiment of the present application, Figure 3 As shown, the surface of the first portion 132 away from the array substrate 11 is parallel to the plane where the array substrate 11 is located.

[0091] During the preparation of the display panel 10, after the preparation of the shading portion 13 is completed, it is usually necessary to continue to prepare other film layers, such as an encapsulation layer, on the side of the shading portion 13 away from the array substrate 11. Since the surface of the first portion 132 away from the array substrate 11 can be used as the bottom surface of the groove S, when continuing to prepare the above-mentioned other film layers, parts of the above-mentioned other film layers need to be filled into the above-mentioned groove. If the above-mentioned other film layers are filled unevenly in the groove, the light path distribution of the light emitted by the light-emitting device 12 when passing through the groove will be affected, which is likely to cause uneven brightness distribution. In this embodiment, the surface of the first portion 132 away from the array substrate 11 is set to be parallel to the plane where the array substrate 11 is located. Then, after the above-mentioned other film layer materials are filled into the groove and contact with the bottom surface of the groove, they can be evenly filled in the groove to avoid the above-mentioned uneven brightness distribution phenomenon.

[0092] Fig.18 for Figure 2 The schematic cross-sectional view of a partial structure of the display panel is shown along the section line EE'.

[0093] In one embodiment of the present application, Fig.18 As shown, along a direction X parallel to the plane where the array substrate 11 is located, the width of the first portion 132 is greater than the width w0 of the main body 131 .

[0094] The first groove 07 can expose at least part of the side surface of the light emitting device 12, and the light emission angle of the part of the side surface of the light emitting device 12 exposed by the first groove 07 is usually larger. In addition, the range of the above-mentioned light emission angle is often limited by the ratio of the width W and the depth H of the first groove 07. Under the premise that the depth H remains unchanged, the larger the width W of the first groove 07, the larger the above-mentioned light emission angle range. Since the surface of the first part 132 away from the array substrate 11 can be used as the bottom surface of the groove first 07, the width of the first part 132 can be regarded as the width W of the first groove 07. Therefore, in the embodiment of the present application, the setting scheme that the width of the first part 132 is greater than the width w0 of the main body 131 can achieve a larger light emission angle range corresponding to the light emitting device 12, which is conducive to realizing large-angle display.

[0095] Fig.19 for Figure 2 Another cross-sectional schematic diagram of a partial structure of a display panel along the section line EE' is shown.

[0096] In one embodiment of the present application, Fig.19 As shown, the first portion 132 includes a first sub-portion 1321 and a second sub-portion 1322, wherein the first sub-portion 1321 is located on a side of the second sub-portion 1322 close to the light emitting device 12. The surface of the first sub-portion 1321 away from the array substrate 11 is closer to the array substrate 11 than the surface of the second sub-portion 1322 away from the array substrate 11.

[0097] Along the direction perpendicular to the plane where the display panel 10 is located, the distance between the surface of the first sub-portion 1321 away from the array substrate 11 and the surface of the light-emitting device 12 away from the array substrate 11 is h5, and the distance between the surface of the second sub-portion 1322 away from the array substrate 11 and the surface of the light-emitting device 12 away from the array substrate 11 is h6, and h5>h6.

[0098] Since the first sub-portion 1321 is located on the side of the second sub-portion 1322 close to the light-emitting device 12, the surface of the first sub-portion 1321 facing the light-emitting device 12 is closer to the light-emitting device 12 than the surface of the second sub-portion 1322 facing the light-emitting device 12; considering that h5>h6, the surface of the first sub-portion 1321 away from the array substrate 11 and the surface of the second sub-portion 1322 away from the array substrate 11 can be used as part of the inner surface of the second groove 08, wherein the second groove 08 can be a stepped groove structure. After the preparation of the light shielding portion 13 is completed, it is necessary to fill other film materials on the side of the light shielding portion 13 away from the array substrate 11, and the structural features of the second groove 08 set in the embodiment of the present application are conducive to the filling of the above-mentioned other film materials. The reason is that: the size of the groove corresponding to the light shielding portion 13 is usually small, and when the above-mentioned other film materials are filled into the groove, they may preferentially block the upper part of the groove to form a closed cavity, making it difficult for the above-mentioned materials to be filled to the bottom of the groove. The second groove 08 provided in this embodiment has a stepped structural feature that is wide at the top and narrow at the bottom. Since the width of the portion of the second groove 08 corresponding to the surface of the second sub-portion 1322 close to the light-emitting device 12 is larger, the probability of forming a closed cavity when the other film layer materials are filled into the groove is reduced, which is conducive to filling the other film layer materials into the bottom of the second groove 08.

[0099] Fig. 20 for Figure 2 Another cross-sectional schematic diagram of a partial structure of a display panel along the section line EE' is shown.

[0100] In one embodiment of the present application, Fig.17 As shown, the width of the first sub-portion 1321 is w1, the width of the second sub-portion 1322 is w2, and w1>w2.

[0101] like Fig.15As shown, the second groove 08 can expose part of the side surface of the light emitting device 12 (corresponding to the side light emitting surface 12a in the figure). Among them, the inner surface of the second groove 08 can include the surface of the first sub-portion 1321 away from the array substrate 11 and the surface of the second sub-portion 1322 away from the array substrate 11. The width of the second groove 08 can limit the difficulty of the light generated by the side light emitting surface 12a to emit out of the groove. The larger the width of the second groove 08, the easier it is for the light generated by the side light emitting surface 12a to emit out of the second groove 08. In particular, the larger the width of the first sub-groove 081 included in the second groove 08 (corresponding to w1), the smaller the probability that the light generated by the portion of the side light emitting surface 12a that contacts the first sub-groove 081 is absorbed by the light shielding portion 13. It should be noted that the closer to the array substrate 11, the more difficult it is for the light generated by the light emitting surface 12a of the light emitting device 12 to emit out of the groove. Since the portion of the side light emitting surface 12a that is in contact with the first sub-groove 081 is the portion of the side light emitting surface 12a that is closer to the bottom of the second groove 08, the embodiment of the present application helps to reduce the difficulty of the light generated by the portion of the side light emitting surface 12a that is in contact with the first sub-groove 081 to emit from the second groove 08 by setting w1>w2.

[0102] Fig.21 A schematic top view of a partial structure of a display panel provided in the present application. Fig. 22 for Fig.21 The schematic cross-sectional view of a part of the structure of the display panel shown in FIG. Fig.23 for Fig.21 Another schematic cross-sectional view of a partial structure of a display panel along the section line FF' is shown.

[0103] In one embodiment of the present application, Fig.21 , Fig. 22 and Fig.23 , an angle θ between a tangent direction of the surface of the first portion 132 facing the light emitting device 12 and a plane where the array substrate 11 is located is an acute angle.

[0104] In the embodiment of the present application, θ is an acute angle, which means that the surface of the first portion 132 facing the light-emitting device 12 is an inclined surface. After the preparation of the shading layer 13 is completed, the other film layer materials filled can be diffused along the inclined surface of the first portion 132 toward the light-emitting device 12 to the bottom of the second groove 08. Compared with the case where θ is a right angle, this setting can improve the uniformity of the diffusion of the above-mentioned other film layer materials in the second groove 08.

[0105] In one possible implementation, Fig. 22 As shown, the width w1 of the first sub-portion 1321 may be equal to the width w2 of the second sub-portion 1322 .

[0106] In one possible implementation, Fig.23 As shown, the width w1 of the first sub-portion 1321 may be greater than the width w2 of the second sub-portion 1322 .

[0107] Fig.24 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF' is shown. Fig.25 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF' is shown. Fig.26 for Fig.21 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line FF' is shown. Fig. 27 for Fig.21 Another schematic cross-sectional view of a partial structure of a display panel along the section line FF' is shown.

[0108] In one embodiment of the present application, the surface of the first portion 132 facing the light emitting device 12 includes an inclined surface and / or a curved surface.

[0109] In one possible implementation, combining Fig. 22 and Fig.23 , the surface of the first portion 132 facing the light emitting device 12 includes an inclined surface. Fig.16 As shown, the width w1 of the first sub-portion 1321 is equal to the width w2 of the second sub-portion 1322; Fig.19 As shown, the width w1 of the first sub-portion 1321 is greater than the width w2 of the second sub-portion 1322. In this implementation, the surface of the first portion 132 facing the light emitting device 12 includes an inclined surface, which means that the surface of the first portion 132 facing the light emitting device 12 can be set as an inclined plane, and the degree of inclination at various positions on the surface of the portion can be the same, which is convenient for setting and helps to reduce the difficulty of preparing the first portion 132.

[0110] In one possible implementation, combining Fig.24 and Fig.25 , the surface of the first portion 132 facing the light emitting device 12 includes a curved surface. Fig.18 As shown, the width w1 of the first sub-portion 1321 is equal to the width w2 of the second sub-portion 1322; Fig.21 As shown, the width w1 of the first sub-portion 1321 is greater than the width w2 of the second sub-portion 1322. In this implementation, when the surface of the first portion 132 facing the light emitting device 12 includes a curved surface, the degree of inclination of a point on the curved surface may vary with the height of the point, wherein the height of the point may be the distance between the point and the surface of the light emitting device 12 away from the array substrate 11 in a direction perpendicular to the plane where the display panel 10 is located. For example, Fig.19As shown, along the direction perpendicular to the plane where the display panel 10 is located and away from the array substrate 11, the inclination of the curved surface on the first part 132 toward the light-emitting device 12 gradually increases. Then, when other film layer materials are filled into the gap after the shading portion 13 is prepared, the farther away from the bottom of the gap, the more difficult it is for the filled film layer material to adhere to the surface of the first part 132 toward the light-emitting device 12, which helps the above-mentioned other film layer materials to diffuse to the bottom of the gap.

[0111] In one possible implementation, combining Fig.26 and Fig. 27 The surface of the first portion 132 facing the light emitting device 12 includes an inclined surface and a curved surface. Fig. 20 As shown, the width w1 of the first sub-portion 1321 is equal to the width w2 of the second sub-portion 1322; Fig.21 As shown, the width w1 of the first sub-portion 1321 is greater than the width w2 of the second sub-portion 1322 .

[0112] In addition, the surface of the first sub-portion 1321 facing the light-emitting device 12 can be a slope and the surface of the second sub-portion 1322 facing the light-emitting device 12 can be a curved surface; or, the surface of the first sub-portion 1321 facing the light-emitting device 12 can be a curved surface and the surface of the second sub-portion 1322 facing the light-emitting device 12 can be a slope.

[0113] In one embodiment of the present application, Fig. 22 , Fig.23 , Fig.24 and Fig.25 The angle between the tangent direction of the surface of the first sub-portion 1321 toward the light-emitting device 12 and the plane where the array substrate 11 is located is θ1, and the angle between the tangent direction of the surface of the second sub-portion 1322 toward the light-emitting device 12 and the plane where the array substrate 11 is located is θ2, and θ1<θ2.

[0114] When θ1<θ2, the inclination degree of the surface of the second sub-portion 1322 facing the light-emitting device 12 is greater than the inclination degree of the surface of the first sub-portion 1321 facing the light-emitting device 12. Then, when other film layer materials are subsequently filled, the surface of the first sub-portion 1321 facing the light-emitting device 12 makes it more difficult for the other film layer materials to stay on the surface of the second sub-portion 1322 facing the light-emitting device 12. Therefore, the other film layer materials are more likely to diffuse into the portion of the second groove 08 corresponding to the first sub-portion 1321.

[0115] Fig.28 A schematic top view of a partial structure of a display panel provided in the present application. Fig.29 for Fig.28 The schematic cross-sectional view of a partial structure of the display panel along the section line GG' is shown.

[0116] In one embodiment of the present application, Fig.28 and Fig.29 The plurality of light emitting devices 12 include a first light emitting device 12a and a second light emitting device 12b, and the roughness of a surface of the first light emitting device 12a away from the array substrate 11 is greater than the roughness of a surface of the second light emitting device 12b away from the array substrate 11.

[0117] The first light emitting device 12 a is adjacent to the first portion 132 and the second light emitting device 12 b is not adjacent to the first portion 132 .

[0118] In order to improve the light emitting effect of the light emitting device 12, the light emitting surface of some light emitting devices 12 may be roughened, which results in that the surface roughness of some light emitting devices 12 is often different from the surface roughness of other light emitting devices 12. The first light emitting device 12a may be a light emitting device subjected to the roughening treatment, and the surface of the first light emitting device 12a away from the array substrate 11 may have a greater roughness than that of the second light emitting device 12b.

[0119] When preparing the shading portion 13, since the surface of the first light-emitting device 12a is rougher than the surface of the second light-emitting device 12b, when the shading material 04 is filled between the first light-emitting device 12a and the second light-emitting device 12b, the shading material 04 climbing onto the first light-emitting device 12a will be more than the shading material 04 climbing onto the second light-emitting device 12b. This is because the surface roughness of the first light-emitting device 12a is greater, and the wettability between the shading material 04 in the liquid state and the surface of the first light-emitting device 12a is better. Therefore, in this embodiment, the first part 132 can be set only at the adjacent position of the first light-emitting device 12a, giving priority to protecting the first light-emitting device 12a to reduce the shielding of its light-emitting surface by the shading portion 13, while reducing the number of the first part 132, saving costs.

[0120] In one embodiment of the present application, the light emitting color of the first light emitting device 12a is red, and the light emitting color of the second light emitting device 12b is green or blue.

[0121] Generally, considering the difference between the light extraction efficiency of the red light emitting device and the light extraction efficiency of the blue light emitting device and the light extraction efficiency of the green light emitting device, the surface of the red light emitting device is often roughened, and the surface roughness of the red light emitting device can be greater than the surface roughness of the green light emitting device and the surface roughness of the blue light emitting device. Therefore, the first part 132 can be provided only at a position adjacent to the red light emitting device.

[0122] Fig.30 Schematic diagram of the light intensity of light-emitting devices of different colors changing with viewing angle.

[0123] Fig.30 The graphs showing the changes in light intensity of the red light-emitting device, the blue light-emitting device and the green light-emitting device respectively as a function of viewing angle are shown in the figure, wherein the thick solid line indicates the change in light intensity of the red light-emitting device, the dotted line indicates the change in light intensity of the green light-emitting device, and the thin solid line indicates the change in light intensity of the blue light-emitting device.

[0124] It should be noted that the semicircle in the figure can be regarded as a coordinate system composed of the viewing angle and the light intensity, which can be used to reflect the light intensity corresponding to different colors of light emitting devices at different viewing angles. Fig.23 The scale in the figure can represent the size of the viewing angle. The larger the scale value, the larger the current viewing angle. In addition, the positive and negative values ​​of the scale can represent the deviation direction between the viewing angle direction and the direction perpendicular to the plane where the display panel is located. For example, -30° in the figure can represent that the current viewing angle direction deviates 30° to the left compared to the direction perpendicular to the plane where the display panel is located; for example, 30° in the figure can represent that the current viewing angle direction deviates 30° to the right compared to the direction perpendicular to the plane where the display panel is located. On the other hand, the radial direction of the semicircular coordinate system in the figure can represent the direction of increasing light intensity. For example, along the radial direction, the farther away from the center of the semicircular coordinate system, the greater the light intensity.

[0125] Due to the limited technological level, light emitting devices 12 of different light emitting colors have different light emitting characteristics, for example, Fig.23 As shown, at the same viewing angle, the light output amounts corresponding to the light emitting devices 12 of different light emitting colors may be different. Fig.23 As shown, in the viewing angle range of [30°, 80°] and [-30°, -80°], the light output intensity of the blue / green light emitting device is significantly greater than that of the red light emitting device.

[0126] Fig.31 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.32 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.33 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.34 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.35 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.36 for Figure 2 Another cross-sectional schematic diagram of a partial structure of the display panel along the section line EE' is shown. Fig.37 for Figure 2 Another cross-sectional schematic diagram of a partial structure of a display panel along the section line EE' is shown.

[0127] Based on this, in one embodiment of the present application, the plurality of light emitting devices 12 include a third light emitting device 12c and a fourth light emitting device 12d, and the light emitting color of the third light emitting device 12c is different from the light emitting color of the fourth light emitting device 12d. For example, the light emitting color of the third light emitting device 12c may be red, and the light emitting color of the fourth light emitting device 12d may be blue or green.

[0128] Along a direction parallel to the plane where the array substrate 11 is located, the width of the first portion 132 adjacent to the third light emitting device 12c is greater than the width of the first portion 132 adjacent to the fourth light emitting device 12d;

[0129] and / or, along a direction perpendicular to the plane where the array substrate 11 is located, a height of the first portion 132 adjacent to the third light emitting device 12c is less than a height of the first portion 132 adjacent to the fourth light emitting device 12d;

[0130] And / or, the angle between the tangent direction of the surface of the first part 132 adjacent to the third light-emitting device 12c toward the light-emitting device 12 and the plane where the array substrate 11 is located is smaller than the angle between the tangent direction of the surface of the first part 132 adjacent to the fourth light-emitting device 12d toward the light-emitting device 12 and the plane where the array substrate 11 is located.

[0131] In one possible implementation, Fig.31 As shown, along a direction parallel to the plane where the array substrate 11 is located, a width w3 of the first portion 132 adjacent to the third light emitting device 12c is greater than a width w4 of the first portion 132 adjacent to the fourth light emitting device 12d.

[0132] In this implementation, it is known that when the gap depth (corresponding to the distance between the surface of the first part 132 away from the array substrate 11 and the surface of the light-emitting device 12 away from the array substrate 11) is fixed, the effective light-emitting range of the light-emitting device 12 (the range where the light is not easily blocked by the light-shielding portion 13) is proportional to the gap width (corresponding to the width of the first part 132). This is because the wider the gap, the lower the probability that the light emitted by the light-emitting device 12 at a wide viewing angle is absorbed by the light-shielding portion 13. Therefore, by setting w3>w4, this implementation can achieve that the light emitted by the third light-emitting device 12c at a wide viewing angle is less blocked by the light-shielding portion 13 than that of the fourth light-emitting device 12d, thereby improving the display unevenness problem caused by the difference in light emission intensity of light-emitting devices 12 of different colors at a wide viewing angle.

[0133] In one possible implementation, Fig.32 As shown, along the direction perpendicular to the plane where the array substrate 11 is located, the height h3 of the first portion 132 adjacent to the third light emitting device 12c is greater than the height h4 of the first portion 132 adjacent to the fourth light emitting device 12d. Wherein, h3 may be the distance between the surface of the first portion 132 adjacent to the third light emitting device 12c away from the array substrate 11 and the surface of the light emitting device 12 away from the array substrate 11, and h4 may be the distance between the surface of the first portion 132 adjacent to the fourth light emitting device 12d away from the array substrate 11 and the surface of the light emitting device 12 away from the array substrate 11.

[0134] In this implementation, it is known that when the gap width (corresponding to the width of the first part 132) is fixed, the effective light emission range of the light emitting device 12 (the range where the light emission is not easily blocked by the light shielding portion 13) is proportional to the gap depth (corresponding to the distance between the surface of the first part 132 away from the array substrate 11 and the surface of the light emitting device 12 away from the array substrate 11). This is because the larger the gap depth, the larger the exposed light emission surface area of ​​the light emitting device 12, and the smaller the degree of blocking of the light emission of the light emitting device 12 at a wide viewing angle by the light shielding portion 13. Therefore, by setting h3>h4, the present implementation can achieve that the light emission of the third light emitting device 12c at a wide viewing angle is less blocked by the light shielding portion 13 than that of the fourth light emitting device 12d, thereby improving the display unevenness problem caused by the difference in light emission intensity of light emitting devices 12 of different colors at a wide viewing angle.

[0135] In one possible implementation, Fig.33 As shown, the angle θ3 between the tangent direction of the surface of the main body 131 adjacent to the third light-emitting device 12c toward the light-emitting device 12 and the plane where the array substrate 11 is located is smaller than the angle θ4 between the tangent direction of the surface of the main body 131 adjacent to the fourth light-emitting device 12d toward the light-emitting device 12 and the plane where the array substrate 11 is located.

[0136] In this implementation, the angle between the tangent of the surface of the main body 131 facing the light emitting device 12 (which may be referred to as the outer wall of the gap) and the plane where the array substrate 11 is located can represent the degree of inclination of the outer wall of the gap. The smaller the angle, the more inclined the corresponding outer wall of the gap. Among them, the more inclined the outer wall of the gap is, the more difficult it is for the light emitted by the light emitting device 12 to be absorbed by the main body 131. Therefore, by setting the outer wall of the gap to be more inclined, the light emitted from the main body 131 at a wide viewing angle can be reduced. Therefore, by setting θ3<θ4, the light emitted from the third light emitting device 12c at a wide viewing angle can be less obstructed by the main body 131 than that from the fourth light emitting device 12d, thereby improving the problem of uneven display caused by the difference in light emission intensity of light emitting devices 12 of different colors at a wide viewing angle.

[0137] In one possible implementation, Fig.34 As shown, along a direction parallel to the plane where the array substrate 11 is located, a width w3 of the first portion 132 adjacent to the third light-emitting device 12c is greater than a width w4 of the first portion 132 adjacent to the fourth light-emitting device 12d, and, along a direction perpendicular to the plane where the array substrate 11 is located, a height h3 of the first portion 132 adjacent to the third light-emitting device 12c is greater than a height h4 of the first portion 132 adjacent to the fourth light-emitting device 12d.

[0138] In one possible implementation, Fig.35 As shown, along a direction parallel to the plane where the array substrate 11 is located, a width w3 of the first portion 132 adjacent to the third light-emitting device 12c is greater than a width w4 of the first portion 132 adjacent to the fourth light-emitting device 12d, and an angle θ3 between a tangent direction of the main body 131 adjacent to the third light-emitting device 12c toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located is smaller than an angle θ4 between a tangent direction of the main body 131 adjacent to the fourth light-emitting device 12d toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located.

[0139] In one possible implementation, Fig.36 As shown, along the direction perpendicular to the plane where the array substrate 11 is located, the height h3 of the first portion 132 adjacent to the third light-emitting device 12c is smaller than the height h4 of the first portion 132 adjacent to the fourth light-emitting device 12d, and the angle θ3 between the tangent direction of the main body 131 adjacent to the third light-emitting device 12c toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located is smaller than the angle θ4 between the tangent direction of the main body 131 adjacent to the fourth light-emitting device 12d toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located.

[0140] In one possible implementation, Fig.37 As shown, along the direction parallel to the plane where the array substrate 11 is located, the width w3 of the first part 132 adjacent to the third light-emitting device 12c is greater than the width w4 of the first part 132 adjacent to the fourth light-emitting device 12d; and, along the direction perpendicular to the plane where the array substrate 11 is located, the height h3 of the first part 132 adjacent to the third light-emitting device 12c is greater than the height h4 of the first part 132 adjacent to the fourth light-emitting device 12d; and, the angle θ3 between the tangent direction of the main body 131 adjacent to the third light-emitting device 12c toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located is smaller than the angle θ4 between the tangent direction of the main body 131 adjacent to the fourth light-emitting device 12d toward the surface of the light-emitting device 12 and the plane where the array substrate 11 is located.

[0141] Fig.38 A schematic top view of a partial structure of a display panel provided in the present application. Fig.39 for Fig.38 The schematic cross-sectional view of a partial structure of the display panel is shown along the section line HH′.

[0142] In one embodiment of the present application, Fig.38 and Fig.39 The display panel 10 further includes an encapsulation layer 14, which is located on a side of the light-emitting device 12 away from the array substrate 11, and the encapsulation layer 14 at least partially fills the gap. The constituent material of the encapsulation layer 14 may include a transparent material with high light transmittance. During the preparation of the display panel 10, the constituent material of the encapsulation layer 14 needs to be injected into the gap. It should be noted that the constituent material of the encapsulation layer 14 can fill the gap after being injected into the gap, so when preparing other film layers later, it can be avoided that the structural flatness of the upper film layer is affected by the presence of the gap.

[0143] Fig.40 A schematic top view of a partial structure of a display panel provided in the present application. Fig.41 for Fig.40 The schematic cross-sectional view of a partial structure of the display panel along the section line JJ' is shown.

[0144] In one embodiment of the present application, Fig.40 and Fig.41 , the display panel 10 further includes a first pad 151, which does not overlap with the light-emitting device 12 along a direction perpendicular to the plane where the display panel 10 is located, and a gap is included between the first pad 151 and the main body 131. The display panel 10 may also include a second pad 152, which overlaps with the light-emitting device 12 along a direction perpendicular to the plane where the display panel 10 is located. It should be noted that both the first pad 151 and the second pad 152 can be used to transmit the electrical signal required for light emission to the light-emitting device 12, but when the light-emitting device 12 is transferred to the array substrate 11, the second pad 152 is electrically connected to the light-emitting device 12, and the first pad 151 is not electrically connected to the light-emitting device 12, that is, the first pad 151 can be regarded as a spare pad. When the light-emitting device 12 adjacent to the spare pad works abnormally, the light-emitting device 12 can be removed and a new light-emitting device 12 can be soldered on the spare pad.

[0145] In the embodiment of the present application, the scheme of setting a gap between the first pad 151 and the main body 131 is equivalent to reserving a space for arranging the light-emitting device 12 at the corresponding position of the first pad 151. In addition, when it is necessary to electrically connect the first pad 151 to the light-emitting device 12, a part of the gap reserved in advance can also be used as the gap between the main body 131 and the light-emitting device 12, reducing the process difficulty.

[0146] like Fig.41 As shown, the first pad 151 and the second pad 152 can be electrically connected to the driving circuit 161, and the driving circuit 161 can include a transistor, wherein the driving circuit 161 can transmit the electrical signal required for emitting light to the light-emitting device 12 through the first pad 151.

[0147] The present application provides a method for manufacturing a display panel 10 . The display panel 10 includes an array substrate 11 and a plurality of light-emitting devices 12 . The light-emitting devices 12 are located on one side of the array substrate 11 , and the light-emitting devices 12 are electrically connected to the array substrate 11 .

[0148] The display panel 10 further includes a light shielding portion 13, and an orthographic projection S1 of the light shielding portion 13 on the array substrate 11 at least partially surrounds an orthographic projection S2 of the light emitting device 12 on the array substrate 11. The light shielding portion 13 includes a main body portion 131, and a gap is included between the main body portion 131 and the light emitting device 12 along a direction parallel to the plane where the array substrate 11 is located.

[0149] Fig.42 The following is a schematic diagram of some steps for preparing the display panel provided in this application. Fig.43 for Fig.42 A flow chart of some of the preparation steps is shown.

[0150] Combination Fig.42 and Fig.43 , the preparation method comprises:

[0151] S01: before the preparation process of the light shielding portion 13 begins, an optical glue 16 is disposed on a side of the light emitting device 12 away from the array substrate 11, and the optical glue 16 is in contact with at least a portion of a surface of the light emitting device 12 away from the array substrate 11 and at least a portion of a side surface of the light emitting device 12;

[0152] S02: After the preparation process of the light shielding portion 13 is completed, the optical glue is removed to form the above-mentioned gap.

[0153] like Fig.42 As shown, step 001 may include transferring the light-emitting device 12 to the array substrate 11 using a transfer substrate 01; step 002 may include filling a shading material 04 between the light-emitting devices 12 to prepare a shading portion 13; step 003 may include removing the optical glue 16 to form a gap; step 004 may include preparing a packaging layer 14 on the side of the light-emitting device 12 away from the array substrate 11.

[0154] Before step 003, an optical glue 16 may be provided on the side of the light emitting device 12 away from the array substrate 11, and the optical glue 16 contacts at least part of the surface of the light emitting device 12 away from the array substrate 11 and at least part of the side surface of the light emitting device 12. Therefore, during step 003, the optical glue 16 can isolate the surface of the light emitting device 12 in contact with the optical glue 16 from the light shielding material 04, so as to prevent the light shielding material 04 from climbing onto part of the surface of the light emitting device 12. In step 004, the optical glue 16 can be removed from the light emitting device 12. At this time, since the optical glue 13 can contact the partially cured light shielding material 04, the main body 131 and the corresponding gap can be formed after the optical glue 16 is removed, that is, the optical glue 16 can be used as a mold involved in the formation of the light shielding portion 13.

[0155] Fig.44 for Fig.42 A schematic diagram of some of the preparation steps is shown.

[0156] In one embodiment of the present application, Fig.44 As shown, in the process of transferring the light emitting device 12 to the array substrate 11 , the light emitting device 12 and the optical adhesive 16 are both transferred from the transfer substrate 01 to the array substrate 11 .

[0157] In step 001, the light emitting device 12 and the transfer adhesive 16a on the transfer substrate 01 can be transferred to the array substrate 11, and then the transfer adhesive 16a is separated from the transfer substrate 01, and the transfer adhesive 16a is retained to serve as the optical adhesive 16. The transfer adhesive 16a is used to fix the light emitting device 12 on the transfer substrate 01 to assist in the alignment process between the light emitting device 12 and the pads on the array substrate 11.

[0158] In the embodiment of the present application, by using the transfer glue 16a as the optical glue 16, the additional process steps caused by setting the optical glue 16 can be reduced under the premise of forming the above-mentioned gap, which is beneficial to reducing the preparation cost.

[0159] Fig.45 for Fig.42 A schematic diagram of some of the preparation steps is shown.

[0160] In one embodiment of the present application, Fig.45 As shown, after the light emitting device 12 is transferred onto the array substrate 11 , an optical adhesive 16 is disposed on a side of the light emitting device 12 away from the array substrate 11 .

[0161] In step 001, after the light-emitting device 12 is transferred onto the array substrate 11, the light-emitting device 12 can be separated from the transfer substrate 11 and the transfer glue 16a; then, the optical glue material 16b can be deposited on the entire surface, and the optical glue material 16b can be etched to form an optical glue 16, so that the optical glue 16 is in contact with at least a portion of the surface of the light-emitting device 12 away from the array substrate 11 and at least a portion of the side of the light-emitting device 12.

[0162] In one embodiment of the present application, after the preparation process of the light shielding portion 13 is completed, the optical glue 16 is retained, and the encapsulation layer 11 is provided on the side of the optical glue 16 away from the array substrate 11. In this embodiment, the optical glue 16 can be retained after the preparation of the light shielding portion 13 is completed, and the portion of the optical glue 16 that contacts the side of the light emitting device 12 can be regarded as a film layer filled in the above-mentioned gap.

[0163] Fig.46 A schematic diagram of a display device provided in the present application.

[0164] The present application provides a display device 20, such as Fig.46 As shown, the display device 20 includes the display panel 10 provided in the above embodiment. The display device 20 may be a mobile phone, or may be an electronic device such as a computer or a television.

[0165] The situation in which the light emitting surface of the light emitting device 12 in the display device 20 provided in the present application is blocked by the light shielding portion 13 is greatly improved.

[0166] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A display panel, characterized in that: include: An array substrate; A plurality of light emitting devices, wherein the light emitting devices are located on one side of the array substrate; The light emitting device is electrically connected to the array substrate; A shading portion, the orthographic projection of the shading portion on the array substrate at least partially surrounds the orthographic projection of the light-emitting device on the array substrate; the shading portion includes a main body portion, and a gap is included between the main body portion and the light-emitting device along a direction parallel to the plane where the array substrate is located.

2. The display panel according to claim 1, characterized in that: The light shielding portion further includes a first portion, the first portion is located between the main body and the light emitting device, and at least part of the light emitting device is adjacent to the first portion; The surface of the first portion away from the array substrate is closer to the array substrate than the surface of the main body away from the array substrate, and the surface of the first portion away from the array substrate is closer to the array substrate than the surface of the light-emitting device away from the array substrate.

3. The display panel according to claim 2, characterized in that: The light emitting device comprises a light emitting body, a surface of the first portion away from the array substrate is closer to the array substrate than a surface of the light emitting body close to the array substrate or the surface of the first portion away from the array substrate is flush with a surface of the light emitting body close to the array substrate.

4. The display panel according to claim 2, characterized in that: A surface of the first portion away from the array substrate is parallel to a plane where the array substrate is located.

5. The display panel according to claim 2, characterized in that: Along a direction parallel to the plane where the array substrate is located, the width of the first portion is greater than the width of the main body portion.

6. The display panel according to claim 2, characterized in that: The first part includes a first sub-part and a second sub-part, the first sub-part is located on a side of the second sub-part close to the light-emitting device; the surface of the first sub-part away from the array substrate is closer to the array substrate than the surface of the second sub-part away from the array substrate.

7. The display panel according to claim 6, characterized in that: The width of the first sub-portion is w1, the width of the second sub-portion is w2, and w1>w2.

8. The display panel according to claim 6, characterized in that: An angle θ between a tangent direction of a surface of the first portion facing the light emitting device and a plane where the array substrate is located is an acute angle.

9. The display panel according to claim 8, characterized in that: A surface of the first portion facing the light emitting device includes an inclined surface and / or a curved surface.

10. The display panel according to claim 9, characterized in that: The angle between the tangent direction of the surface of the first sub-portion toward the light-emitting device and the plane where the array substrate is located is θ1, and the angle between the tangent direction of the surface of the second sub-portion toward the light-emitting device and the plane where the array substrate is located is θ2, θ1<θ2.

11. The display panel according to claim 2, characterized in that: The plurality of light emitting devices include a first light emitting device and a second light emitting device, wherein the roughness of a surface of the first light emitting device away from the array substrate is greater than the roughness of a surface of the second light emitting device away from the array substrate; The first light emitting device is adjacent to the first portion and the second light emitting device is not adjacent to the first portion.

12. The display panel according to claim 11, characterized in that: The light emitting color of the first light emitting device is red, and the light emitting color of the second light emitting device is green or blue.

13. The display panel according to claim 2, characterized in that: The plurality of light emitting devices include a third light emitting device and a fourth light emitting device, and the light emitting color of the third light emitting device is different from the light emitting color of the fourth light emitting device; Along a direction parallel to the plane where the array substrate is located, a width of the first portion adjacent to the third light emitting device is greater than a width of the first portion adjacent to the fourth light emitting device; and / or, along a direction perpendicular to the plane where the array substrate is located, a height of the first portion adjacent to the third light emitting device is greater than a height of the first portion adjacent to the fourth light emitting device; And / or, the angle between the tangent direction of the surface of the main body adjacent to the third light-emitting device toward the light-emitting device and the plane where the array substrate is located is smaller than the angle between the tangent direction of the surface of the main body adjacent to the fourth light-emitting device toward the light-emitting device and the plane where the array substrate is located.

14. The display panel according to claim 1, characterized in that: The surface of the light emitting device away from the array substrate is closer to the array substrate than the surface of the main body away from the array substrate or the surface of the light emitting device away from the array substrate is flush with the surface of the main body away from the array substrate.

15. The display panel according to claim 1, characterized in that: The display panel further includes an encapsulation layer, which is located on a side of the light emitting device away from the array substrate, and the encapsulation layer at least partially fills the gap.

16. The display panel according to claim 1, characterized in that: The display panel further includes a first pad. Along a direction perpendicular to a plane where the display panel is located, the first pad does not overlap with the light emitting device, and the gap is included between the first pad and the main body.

17. A method for preparing a display panel, characterized in that: The display panel comprises: An array substrate; A plurality of light emitting devices, wherein the light emitting devices are located on one side of the array substrate; and the light emitting devices are electrically connected to the array substrate; a light shielding portion, wherein the orthographic projection of the light shielding portion on the array substrate at least partially surrounds the orthographic projection of the light emitting device on the array substrate; the light shielding portion comprises a main body portion, and a gap is formed between the main body portion and the light emitting device along a direction parallel to the plane where the array substrate is located; The preparation method comprises: Before the preparation process of the light shielding portion begins, an optical glue is provided on a side of the light emitting device away from the array substrate, and the optical glue is in contact with at least a portion of a surface of the light emitting device away from the array substrate and at least a portion of a side surface of the light emitting device; After the preparation process of the light shielding portion is completed, the optical glue is removed to form the gap.

18. The preparation method according to claim 17, characterized in that: In the process of transferring the light emitting device to the array substrate, the light emitting device and the optical adhesive are both transferred from the transfer substrate to the array substrate.

19. The preparation method according to claim 17, characterized in that: After the light emitting device is transferred onto the array substrate, the optical adhesive is disposed on a side of the light emitting device away from the array substrate.

20. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-16.

Images