Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to at least solve the problem that a display panel is difficult to adapt to main view angle deflection requirements of different positions in the related art. The display panel comprises a plurality of light-emitting devices, and each light-emitting device comprises a substrate, a first semiconductor layer, a light-emitting layer, a second semiconductor layer, a first electrode connected with the second semiconductor layer and a second electrode connected with the first semiconductor layer which are sequentially arranged. The orthographic projection of the first electrode on the substrate is located in the orthographic projection of the light-emitting layer on the substrate, and the orthographic projection of the second electrode on the substrate and the orthographic projection of the light-emitting layer on the substrate are arranged at intervals in the first direction. And for the plurality of light-emitting devices arranged along the first direction, the light-emitting layers and the second electrodes in part of the light-emitting devices are sequentially arranged along a second direction, the light-emitting layers and the second electrodes in the other part of the light-emitting devices are sequentially arranged along a third direction, and the second direction is opposite to the third direction.

Description

Technical Field

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

[0002] A Micro LED (Light-emitting diode) display panel generally includes a substrate and a plurality of light-emitting devices disposed on the substrate. The display of the display panel is achieved by driving the light-emitting devices.

[0003] In the related art, the main viewing angles of all positions of the display panel are usually in the direction facing the display surface of the display panel, which is difficult to adapt to the deflection requirements of the main viewing angles of the display panel at different positions. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, which are used to at least solve the problem in the related art that the display panel is difficult to adapt to the main viewing angle deflection requirements at different positions.

[0005] On the one hand, an embodiment of the present application provides a display panel, which includes a substrate and a plurality of light-emitting devices arranged on the substrate, each of the light-emitting devices includes: a substrate, a first semiconductor layer, a light-emitting layer, and a second semiconductor layer arranged in sequence, a first electrode connected to the second semiconductor layer, and a second electrode connected to the first semiconductor layer; the first electrode is located on a side of the second semiconductor layer away from the substrate, and the orthographic projection of the first electrode on the substrate is located within the orthographic projection of the light-emitting layer on the substrate; the orthographic projection of the second electrode on the substrate and the orthographic projection of the light-emitting layer on the substrate are arranged at intervals along a first direction. Among them, for the plurality of light-emitting devices arranged along the first direction, in some of the light-emitting devices, the light-emitting layer and the second electrode are arranged in sequence along the second direction, and in another part of the light-emitting devices, the light-emitting layer and the second electrode are arranged in sequence along a third direction, and the second direction and the third direction are opposite directions in the first direction.

[0006] In some embodiments, the display panel has a first display area and a second display area arranged along the first direction; the plurality of light-emitting devices include a first light-emitting device and a second light-emitting device, a plurality of the first light-emitting devices are located in the first display area, and a plurality of the second light-emitting devices are located in the second display area; wherein, in the first light-emitting device, the light-emitting layer and the second electrode are arranged in sequence along the second direction, and in the second light-emitting device, the light-emitting layer and the second electrode are arranged in sequence along the third direction.

[0007] In some embodiments, the first display area and the second display area are arranged sequentially along the second direction.

[0008] In some embodiments, the plurality of first light emitting devices located in the first display area and the plurality of second light emitting devices located in the second display area are symmetrically arranged about the dividing line-axis.

[0009] In some embodiments, the display panel further includes a lens located on the light emitting device, and a geometric center of an orthographic projection of a portion of the light emitting device on the substrate and a geometric center of an orthographic projection of the lens located on the light emitting device on the substrate do not coincide.

[0010] In some embodiments, the plurality of first light-emitting devices include a first selected light-emitting device close to the second display area and a second selected light-emitting device away from the second display area, the geometric center of the orthographic projection of the first selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the first selected light-emitting device on the substrate, the orthographic projection of the second selected light-emitting device on the substrate has a first geometric center, the orthographic projection of the lens on the second selected light-emitting device on the substrate has a second geometric center, and the first geometric center is located on the side of the second geometric center close to the second display area.

[0011] In some embodiments, the plurality of second light-emitting devices include a third selected light-emitting device close to the first display area and a fourth selected light-emitting device away from the first display area, the geometric center of the orthographic projection of the third selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the third selected light-emitting device on the substrate, the orthographic projection of the fourth selected light-emitting device on the substrate has a third geometric center, the orthographic projection of the lens on the fourth selected light-emitting device on the substrate has a fourth geometric center, and the third geometric center is located on the side of the fourth geometric center close to the first display area.

[0012] In some embodiments, the plurality of first light-emitting devices include a first selected light-emitting device close to the second display area and a plurality of second selected light-emitting devices away from the second display area, and the plurality of second selected light-emitting devices are arranged along the first direction; the geometric center of the orthographic projection of the first selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the first selected light-emitting device on the substrate; the orthographic projection of each second selected light-emitting device on the substrate has a first geometric center, and the orthographic projection of the lens on the second selected light-emitting device on the substrate has a second geometric center, the first geometric center is located on a side of the second geometric center close to the second display area, and there is a first distance between the first geometric center and the second geometric center, and the first distance gradually increases in a direction away from the second display area.

[0013] In some embodiments, the plurality of second light-emitting devices include a third selected light-emitting device close to the first display area and a plurality of fourth selected light-emitting devices away from the first display area, and the plurality of fourth selected light-emitting devices are arranged along the first direction; the geometric center of the orthographic projection of the third selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the third selected light-emitting device on the substrate; the orthographic projection of each of the fourth selected light-emitting devices on the substrate has a third geometric center, and the orthographic projection of the lens on the fourth selected light-emitting device on the substrate has a fourth geometric center, the third geometric center is located on a side of the fourth geometric center close to the first display area, and a second distance is between the third geometric center and the fourth geometric center, and the second distance gradually increases in a direction away from the first display area.

[0014] In some embodiments, the display panel further has a third display area located between the first display area and the second display area, the plurality of light-emitting devices also include a third light-emitting device located in the third display area, and the third light-emitting device passes through the dividing line; the plurality of second selected light-emitting devices include a second edge light-emitting device away from the second display area, and the plurality of fourth selected light-emitting devices include a fourth edge light-emitting device away from the first display area; the first spacing corresponding to the second edge light-emitting device is smaller than the second spacing corresponding to the fourth edge light-emitting device; wherein, in the third light-emitting device, the light-emitting layer and the second electrode are arranged sequentially along the third direction.

[0015] On the other hand, an embodiment of the present application further provides a display device, which includes the display panel as described in any of the above embodiments.

[0016] For the display panel provided in the embodiment of the present application, since the arrangement order of the light-emitting layer and the second electrode in some light-emitting devices is opposite to the arrangement order of the light-emitting layer and the second electrode in another part of the light-emitting devices, the offset direction of the main viewing angle corresponding to some of the light-emitting devices is opposite to the offset direction of the main viewing angle corresponding to another part of the light-emitting devices, thereby enabling the display panel to have different main viewing angle offsets at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a cross-sectional schematic diagram of a display panel provided in some embodiments of the present application;

[0019] Figure 2 is a schematic top view of a display panel provided in some embodiments of the present application;

[0020] Figure 3 is a partial schematic diagram of a display panel provided in some embodiments of the present application;

[0021] Figure 4 is a schematic top view of a display panel provided in some other embodiments of the present application;

[0022] Figure 5 is a schematic top view of a display panel provided in some other embodiments of the present application;

[0023] Figure 6 is a relationship diagram between the luminous intensity and the viewing angle of the luminous unit in the related art and the luminous unit in some embodiments of the present application;

[0024] Figure 7 is a schematic top view of a display panel provided in some other embodiments of the present application;

[0025] Figure 8 is a schematic diagram of main viewing angles of a display panel at different positions provided by some embodiments of the present application;

[0026] Fig. 9 It is a schematic diagram of the structure of a display device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described technical solutions are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0028] In the description of this application, it should be understood that the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different technical features. The term "plurality" and similar words mean two or more, unless otherwise clearly defined.

[0029] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0030] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0031] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present application.

[0032] The various embodiments of the present application are similar, and features in different embodiments and / or different examples may be combined with each other.

[0033] Some embodiments of the present application provide a display panel, such as Figure 1 and Figure 2 As shown, the display panel 100 includes a substrate 20 and a plurality of light emitting devices 11 disposed on the substrate 20 .

[0034] like Figure 3 As shown, each light emitting device 11 includes a substrate 101, a first semiconductor layer 102, a light emitting layer 103, and a second semiconductor layer 104, which are sequentially arranged along the thickness direction Z of the substrate 20. For example, the substrate 101, the first semiconductor layer 102, the light emitting layer 103, and the second semiconductor layer 104 can be sequentially arranged along the direction close to the substrate 20.

[0035] The light emitting layer 103 may emit light under the excitation of the electric field between the first semiconductor layer 102 and the second semiconductor layer 104. For example, the light emitting layer 103 may be a multi-quantum well layer (MQWs). As an example, the first semiconductor layer 102 is one of a P-type semiconductor layer and an N-type semiconductor layer, and the second semiconductor layer 104 is one of a P-type semiconductor layer and an N-type semiconductor layer. The material of the P-type semiconductor layer may be P-type GaN (gallium nitride), and the material of the N-type semiconductor layer may be N-type GaN.

[0036] The light emitting device 11 further includes a first electrode 105 and a second electrode 106. The first electrode 105 is connected to the second semiconductor layer 104 and is located on a side of the second semiconductor layer 104 away from the substrate 101. The orthographic projection of the first electrode 105 on the substrate 101 is located within the orthographic projection of the light emitting layer 103 on the substrate 101. That is, along the direction from the light emitting layer 103 to the substrate 101, the light emitting layer 103 covers the first electrode 105.

[0037] The second electrode 106 is connected to the first semiconductor layer 102 . The orthographic projection of the second electrode 106 on the substrate 101 and the orthographic projection of the light emitting layer 103 on the substrate 101 are spaced apart along a first direction X. The first direction X is perpendicular to the thickness direction Z of the substrate 20 .

[0038] In this case, the light emitting layer 103 is not arranged in the center compared to the substrate 101. There is a large difference in light emitting effect between the area on the substrate 101 covered by the orthographic projection of the light emitting layer 103 and the area on the substrate 101 not covered by the orthographic projection of the light emitting layer 103, so the light finally emitted by the light emitting device 11 presents an asymmetric light pattern.

[0039] As an example, when the first semiconductor layer 102 is an N-type semiconductor layer, the second electrode 106 is an N-electrode. Correspondingly, the second semiconductor layer 104 is a P-type semiconductor layer, and the first electrode 105 is a P-electrode. Figure 2 The letter P in the figure represents the first electrode 105, and the letter N represents the second electrode 106. Of course, the first electrode 105 and the second electrode 106 may also be an N electrode and a P electrode, respectively, in which case the types of the first semiconductor layer 102 and the second semiconductor layer 104 can be adjusted accordingly, and the embodiment of the present application does not limit this.

[0040] Since the orthographic projection of the light-emitting layer 103 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101 are arranged at intervals along the first direction X, and the orthographic projection of the first electrode 105 on the substrate 101 is located within the range of the orthographic projection of the light-emitting layer 103 on the substrate 101, the orthographic projection of the first electrode 105 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101 are also arranged along the first direction X, and the arrangement order of the orthographic projection of the first electrode 105 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101 is the same as the arrangement order of the orthographic projection of the light-emitting layer 103 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101.

[0041] For ease of description, the following embodiments use the arrangement order of the first electrode 105 and the second electrode 106 to represent the arrangement order of the orthographic projection of the first electrode 105 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101, and use the arrangement order of the light-emitting layer 103 and the second electrode 106 to represent the arrangement order of the orthographic projection of the light-emitting layer 103 on the substrate 101 and the orthographic projection of the second electrode 106 on the substrate 101. Therefore, the arrangement order of the light-emitting layer 103 and the second electrode 106 (or the arrangement order of the first electrode 105 and the second electrode 106) is only used to represent the arrangement order of their respective orthographic projections on the substrate 101, and does not limit the spatial positions of the light-emitting layer 103 and the second electrode 106 (or the first electrode 105 and the second electrode 106). For example, the second electrode 106 may not be in contact with the plane where the light-emitting layer 103 is located.

[0042] In addition, for the sake of illustration, Figure 2 Only the arrangement order of the first electrode 105 and the second electrode 106 is shown, and the first electrode 105 is a P electrode and the second electrode 106 is an N electrode.

[0043] In some embodiments, see Figure 2 , for a plurality of light-emitting devices 11 arranged along the first direction X, in some of the light-emitting devices 11, the light-emitting layer 103 and the second electrode 106 are sequentially arranged along the second direction X1, and in another portion of the light-emitting devices 11, the light-emitting layer 103 and the second electrode 106 are sequentially arranged along the third direction X2, and the second direction X1 and the third direction X2 are two opposite directions in the first direction X. That is, the arrangement order of the light-emitting layer 103 and the second electrode 106 of some of the light-emitting devices 11 is opposite to the arrangement order of the light-emitting layer 103 and the second electrode 106 of another portion of the light-emitting devices 11.

[0044] Therefore, for the display panel 100 provided in the embodiment of the present application, since the arrangement order of the light-emitting layer 103 and the second electrode 106 of some light-emitting devices 11 is opposite to the arrangement order of the light-emitting layer 103 and the second electrode 106 of another part of the light-emitting devices 11, the offset direction of the main viewing angle corresponding to some of the light-emitting devices 11 is opposite to the offset direction of the main viewing angle corresponding to another part of the light-emitting devices 11, so that the display panel 100 can have different main viewing angle offsets at different positions.

[0045] In some examples, the number of some light emitting devices 11 may be one or more. The number of another part of light emitting devices 11 may be one or more. This embodiment of the present application does not limit this.

[0046] In some embodiments, Figure 2 and Figure 4 As shown, the display panel 100 has a first display area A1 and a second display area A2 arranged along a first direction X. The first display area A1 and the second display area A2 may be adjacent to each other or may be spaced apart.

[0047] The plurality of light emitting devices 11 include a plurality of first light emitting devices 111 and a plurality of second light emitting devices 112; wherein, in each of the first light emitting devices 111, the light emitting layer 103 and the second electrode 106 are sequentially arranged along the second direction X1; and in each of the second light emitting devices 112, the light emitting layer 103 and the second electrode 106 are sequentially arranged along the third direction X2. Therefore, the difference between the first light emitting device 111 and the second light emitting device 112 is that the arrangement order of the light emitting layer 103 and the second electrode 106 in the first direction X is different.

[0048] A plurality of first light-emitting devices 111 are located in the first display area A1, and a plurality of second light-emitting devices 112 are located in the second display area A2. In this case, the plurality of first light-emitting devices 111 located in the first display area A1 can achieve a main viewing angle offset of the first display area A1, and the plurality of second light-emitting devices 112 located in the second display area A2 can achieve a main viewing angle offset of the second display area A2, so that targeted adjustments can be made according to the main viewing angle requirements of different areas of the display panel 100, so that the display panel 100 can adapt to different scene requirements.

[0049] In some examples, the arrangement of the multiple first light-emitting devices 111 in the first display area A1 and the multiple second light-emitting devices 112 in the second display area A2 may be the same or different. As an example, the multiple first light-emitting devices 111 in the first display area A1 may be arranged along the first direction X. As another example, the multiple first light-emitting devices 111 in the first display area A1 may be arranged in a direction perpendicular to the first direction X. As another example, the multiple first light-emitting devices 111 in the first display area A1 may be arranged in an array. Of course, the multiple second light-emitting devices 112 in the second display area A2 may also be arranged with reference to one of the above examples, and this application does not limit this.

[0050] In some embodiments, Figure 2 and Figure 4 As shown, the first display area A1 and the second display area A2 are arranged along the second direction X1.

[0051] Since the light-emitting layer 103 and the second electrode 106 in the first light-emitting device 111 are arranged in sequence along the second direction X1, the main viewing angle corresponding to the first light-emitting device 111 is offset toward the third direction X2. Correspondingly, since the light-emitting layer 103 and the second electrode 106 in the second light-emitting device 112 are arranged in sequence along the third direction X2, the main viewing angle corresponding to the second light-emitting device 112 is offset toward the second direction X1. By arranging the first display area A1 and the second display area A2 along the second direction X1, the main viewing angle of the first display area A1 is offset toward the third direction X2, and the main viewing angle of the second display area A2 is offset toward the second direction X1, so that the viewing angle width of the display panel 100 can be increased, thereby adapting to the scene requirements of a large viewing angle width.

[0052] In some embodiments, Figure 2 and Figure 4 As shown, a boundary line M may be defined between the first display area A1 and the second display area A2. In this case, the first display area A1 and the second display area A2 are adjacent to each other, and the first display area A1 and the second display area A2 are located on opposite sides of the boundary line M.

[0053] In some examples, the plurality of first light-emitting devices 111 in the first display area A1 and the plurality of second light-emitting devices 112 in the second display area A2 are symmetrically arranged about an axis. For example, the axis may coincide with the dividing line M. In this arrangement, the overall light-emitting pattern of the display panel 100 is also symmetrical with respect to the dividing line M, which is conducive to improving the display uniformity of the display panel 100 on both sides of the dividing line M.

[0054] It is worth noting that the above-mentioned axis or dividing line M is only for illustration and may not exist in the structure of the display panel 100 .

[0055] In some embodiments, Figures 2 to 5 As shown, the display panel 100 further includes a lens 12 located on the light emitting device 11. The lens 12 can be used to modulate the light emitted by the light emitting device 11 located therebelow, so that the light finally emitted by the light emitting device 11 has a certain main viewing angle deviation.

[0056] In some examples, the geometric center of the orthographic projection of some light emitting devices 11 on the substrate 20 does not coincide with the geometric center of the orthographic projection of the lens 12 located on the light emitting device 11 on the substrate 20. In this way, the degree of deflection of the light finally emitted by the part of the light emitting device 11 can be flexibly adjusted, thereby improving the display effect of the display panel 100.

[0057] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the plurality of first light-emitting devices 111 include a first selected light-emitting device 1111 close to the second display area A2 and a second selected light-emitting device 1112 away from the second display area A2. The geometric center of the orthographic projection of the first selected light-emitting device 1111 on the substrate 20 is aligned with the lens 12 (such as Figure 5 The geometric center of the orthographic projection of the first lens 121 shown in FIG. 1 coincides with the geometric center of the orthographic projection of the second selected light emitting device 1112 on the substrate 20, and the geometric center of the orthographic projection of the second selected light emitting device 1112 on the substrate 20 is located at the lens 12 (such as Figure 5 The geometric center of the orthographic projection of the second lens 122) shown in FIG. 1 on the substrate 20 is close to one side of the second display area A2.

[0058] like Figure 5 As shown, Figure 5 Shows Figure 4 The relative positional relationship between the geometric center of the orthographic projection of each light emitting device 11 on the substrate 20 and the geometric center of the orthographic projection of the lens 12 located on the light emitting device 11 on the substrate 20. The geometric center of the orthographic projection of the second selected light emitting device 1112 on the substrate 20 is the first geometric center Q1, and the geometric center of the orthographic projection of the second lens 122 on the substrate 20 is the second geometric center Q2. The first geometric center Q1 is closer to the dividing line M than the second geometric center Q2. In this case, the central axis of the second lens 122 is offset toward the side away from the dividing line M compared to the light emitting center line of the second selected light emitting device 1112, so that the main viewing angle corresponding to the second selected light emitting device 1112 can be offset toward the side away from the dividing line M, thereby further increasing the viewing angle width of the display panel 100, so as to adapt to the scene requirements of a large viewing angle width.

[0059] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the plurality of second light-emitting devices 112 include a third selected light-emitting device 1121 close to the first display area A1 and a fourth selected light-emitting device 1122 away from the first display area A1, and the geometric center of the orthographic projection of the third selected light-emitting device 1121 on the substrate 20 is aligned with the lens 12 (such as Figure 5 The geometric center of the orthographic projection of the third lens 123 shown in FIG. 11 coincides with the geometric center of the orthographic projection of the fourth selected light emitting device 1122 on the substrate 20, and the geometric center of the orthographic projection of the fourth selected light emitting device 1122 on the substrate 20 is located at the lens 12 (such as Figure 5 The geometric center of the orthographic projection of the fourth lens 124) shown in FIG. 1 on the substrate 20 is close to one side of the first display area A1.

[0060] like Figure 5 As shown, the geometric center of the orthographic projection of the fourth selected light emitting device 1122 on the substrate 20 is the third geometric center Q3, and the geometric center of the orthographic projection of the fourth lens 124 on the substrate 20 is the fourth geometric center Q4. The third geometric center Q3 is closer to the dividing line M than the fourth geometric center Q4. In this case, the central axis of the fourth lens 124 is offset toward the side away from the dividing line M compared to the light emitting center line of the fourth selected light emitting device 1122, so that the main viewing angle corresponding to the fourth selected light emitting device 1122 can be offset toward the side away from the dividing line M, thereby further increasing the viewing angle width of the display panel 100, thereby adapting to the scene requirements of a large viewing angle width.

[0061] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the plurality of first light-emitting devices 111 include a first selected light-emitting device 1111 close to the second display area A2 and a plurality of second selected light-emitting devices 1112 away from the second display area A2, and the plurality of second selected light-emitting devices 1112 are arranged along the first direction X. A first geometric center Q1 of the orthographic projection of each second selected light-emitting device 1112 on the substrate 20 is located on a side of a second geometric center Q2 of the orthographic projection of the lens 12 on the second selected light-emitting device 1112 on the substrate 20 close to the second display area A2, and a first distance D1 is provided between the first geometric center Q1 and the second geometric center Q2; the first distance D1 gradually increases in a direction away from the second display area A2.

[0062] As the first distance D1 gradually increases in the direction away from the second display area A2, the degree of deviation of the main viewing angle corresponding to the second selected light emitting device 1112 also gradually increases. Therefore, by gradually adjusting the main viewing angles at different positions, the viewing angle deviation transition can be uniform, and the display effect presented by the final display panel 100 is guaranteed. In addition, since the first light emitting device 111 itself emits light of an asymmetric light type, a certain main viewing angle deviation is presented under the modulation of the corresponding lens 12. Figure 6 As shown, Figure 6 B1 refers to the relationship between the luminous intensity and the viewing angle of the light-emitting unit (including the light-emitting device and the lens located on the light-emitting device) in the related art, and B2 refers to the relationship between the luminous intensity and the viewing angle of the light-emitting unit where the first selected light-emitting device 1111 of the present application is located (the light-emitting unit also includes a lens 12 located on the first selected light-emitting device 1111). In the related art, the light-emitting layer of the light-emitting unit is arranged in a central and symmetrical manner, so the light finally emitted is a symmetrical light type. For the first selected light-emitting device 1111, since the light-emitting layer is not arranged in the center, the light emitted by the corresponding light-emitting unit is an asymmetric light type, and the main viewing angle shows a certain degree of offset. In this case, since the main viewing angle corresponding to the first light-emitting device 111 has already been offset, the size of the above-mentioned first spacing D1 can be set to be relatively small, so as to avoid the first spacing D1 being large, resulting in the first light-emitting device 111 having a large angle of light that is not focused and converged by the lens 12 to form stray light and affect the display effect.

[0063] As an example, along the direction away from the second display area A2, the first spacing D1 may change in an arithmetic progression. As another example, along the direction away from the second display area A2, the first spacing D1 may also change irregularly, which is not limited in the present embodiment.

[0064] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the plurality of second light-emitting devices 112 include a third selected light-emitting device 1121 close to the first display area A1 and a plurality of fourth selected light-emitting devices 1122 away from the first display area A1, and the plurality of fourth selected light-emitting devices 1122 are arranged along the first direction X. A third geometric center Q3 of an orthographic projection of each fourth selected light-emitting device 1122 on the substrate 20 is located on a side of a fourth geometric center Q4 of an orthographic projection of the lens 12 on the fourth selected light-emitting device 1122 on the substrate 20 close to the first display area A1, and a second distance D2 is provided between the third geometric center Q3 and the fourth geometric center Q4, and the second distance D2 gradually increases along a direction away from the first display area A1.

[0065] Since the second spacing D2 gradually increases in the direction away from the first display area A1, the degree of deviation of the main viewing angle corresponding to the fourth selected light emitting device 1122 also gradually increases. Therefore, by gradually adjusting the main viewing angles at different positions, the viewing angle deviation transition can be uniform, and the display effect presented by the final display panel 100 is guaranteed. In addition, since the second light emitting device 112 itself emits light of an asymmetric light type, it has already presented a certain main viewing angle deviation under the modulation of the corresponding lens 12. Therefore, the size of the second spacing D2 can be set relatively small, so as to avoid the second spacing D2 being large, resulting in the second light emitting device 112 having a large angle of light that is not focused and converged by the lens 12, forming stray light and affecting the display effect.

[0066] As an example, along the direction away from the first display area A1, the second spacing D2 may change in an arithmetic progression. As another example, along the direction away from the first display area A1, the second spacing D2 may change irregularly, which is not limited in the present embodiment.

[0067] In some examples, all the light emitting devices 11 may be distributed in an array. For example, any two adjacent light emitting devices 11 have the same spacing.

[0068] In some embodiments, Figure 7 As shown, the display panel 100 further has a third display area A3 located between the first display area A1 and the second display area A2, and the plurality of light emitting devices 11 further include a third light emitting device 113 located in the third display area A3. Figure 7 The dotted box in shows the position of the third display area A3.

[0069] In some examples, the boundary line M is located in the third display area A3. As an example, the third light emitting device 113 passes through the boundary line M. For example, the geometric center of the orthographic projection of the third light emitting device 113 on the substrate 20 passes through the boundary line M.

[0070] The plurality of second selected light-emitting devices 1112 include a second edge light-emitting device 11121 away from the second display area A2, and the plurality of fourth selected light-emitting devices 1122 include a fourth edge light-emitting device 11221 away from the first display area A1. The first spacing D1 corresponding to the second edge light-emitting device 11121 is smaller than the second spacing D2 corresponding to the fourth edge light-emitting device 11221. In this case, the main viewing angle deflection degree corresponding to the second edge light-emitting device 11121 is smaller than the main viewing angle deflection degree corresponding to the fourth edge light-emitting device 11221.

[0071] In the third light-emitting device 113, the light-emitting layer 103 and the second electrode 106 are arranged in sequence along the third direction X2. In this way, the main viewing angle corresponding to the third light-emitting device 113 can be shifted toward the second direction X1. Since the main viewing angle corresponding to the second edge light-emitting device 11121 is shifted toward the third direction X2, the main viewing angle corresponding to the fourth edge light-emitting device 11221 is shifted toward the second direction X1, and the degree of deflection of the main viewing angle corresponding to the second edge light-emitting device 11121 is less than the degree of deflection of the main viewing angle corresponding to the fourth edge light-emitting device 11221, when the main viewing angle corresponding to the third light-emitting device 113 is shifted toward the second direction X1, the overall viewing angle shift transition of the display panel 100 can be made relatively uniform.

[0072] like Figure 8 As shown, the main viewing angle corresponding to the second edge light emitting device 11121 is -α, the main viewing angle corresponding to the fourth edge light emitting device 11221 is γ, and α<γ. Therefore, by setting the main viewing angle corresponding to the third light emitting device 113 to β, that is, the main viewing angle corresponding to the third light emitting device 113 is offset toward the second direction X1, the overall viewing angle offset transition of the display panel 100 can be made relatively uniform.

[0073] In some examples, the surface of the lens 12 on one side away from the light emitting device 11 is a curved surface, so as to form a good focusing effect on the light of the light emitting device 11. For example, the curved surface can be a spherical surface. As an example, each lens 12 can cover the light emitting device 11 corresponding thereto.

[0074] In some embodiments, Figure 1 As shown, the display panel 100 further includes an encapsulation layer 13 located on each light emitting device 11 , and a plurality of encapsulation layers 13 are connected to each other. For example, the encapsulation layer 13 may cover the corresponding light emitting device 11 .

[0075] Through the above arrangement, each encapsulation layer 13 can provide good protection for the corresponding light-emitting device 11, and by connecting a plurality of encapsulation layers 13 to each other, all encapsulation layers 13 can be manufactured in one process, thereby simplifying the process.

[0076] In some examples, the lens 12 is located on the encapsulation layer 13. In this case, the side of all the encapsulation layers 13 away from the substrate 20 can provide a flat surface for the lens 12, which is beneficial to the manufacture of the lens 12.

[0077] Some embodiments of the present application also provide a display device, such as Fig. 9 As shown, the display device 200 includes the display panel 100 as described in any of the above embodiments.

[0078] Since the display device 200 includes the display panel 100 , the display device 200 has the technical effects of the display panel 100 , which will not be described in detail here.

[0079] In some examples, the display device 200 further includes a fixing member 201 for fixing the display panel 100 .

[0080] As an example, the display device 200 may be a VR (Virtual Reality) display device or an AR (Augmented Reality) display device. For example, the AR display device may be an AR HUD (Head Up Display) device. Since the AR HUD device has different deflection requirements for the main viewing angles at different positions of the display area in the display panel 100, the display panel 100 may be flexibly adjusted according to the requirements of the AR HUD device to meet the usage requirements of the AR HUD device.

[0081] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: include: substrate; as well as A plurality of light emitting devices are provided on the substrate, each of the light emitting devices comprising: A substrate, a first semiconductor layer, a light emitting layer, and a second semiconductor layer are sequentially arranged. a first electrode connected to the second semiconductor layer and located on a side of the second semiconductor layer away from the substrate, wherein an orthographic projection of the first electrode on the substrate is located within an orthographic projection of the light-emitting layer on the substrate; and A second electrode connected to the first semiconductor layer, wherein an orthographic projection of the second electrode on the substrate and an orthographic projection of the light-emitting layer on the substrate are spaced apart along a first direction; Among them, for the multiple light-emitting devices arranged along the first direction, in some of the light-emitting devices, the light-emitting layer and the second electrode are arranged in sequence along the second direction, and in another part of the light-emitting devices, the light-emitting layer and the second electrode are arranged in sequence along the third direction, and the second direction and the third direction are opposite directions in the first direction.

2. The display panel according to claim 1, characterized in that: The display panel has a first display area and a second display area, and the first display area and the second display area are arranged along the first direction; The plurality of light-emitting devices include a first light-emitting device and a second light-emitting device, wherein the plurality of the first light-emitting devices are located in the first display area, and the plurality of the second light-emitting devices are located in the second display area; wherein, in the first light-emitting device, the light-emitting layer and the second electrode are arranged in sequence along the second direction, and in the second light-emitting device, the light-emitting layer and the second electrode are arranged in sequence along the third direction.

3. The display panel according to claim 2, characterized in that: The first display area and the second display area are arranged in sequence along the second direction.

4. The display panel according to claim 3, characterized in that: The plurality of first light emitting devices located in the first display area and the plurality of second light emitting devices located in the second display area are symmetrically arranged about an axis.

5. The display panel according to any one of claims 3 to 4, characterized in that: The display panel further includes a lens located on the light emitting device, and a geometric center of an orthographic projection of a portion of the light emitting device on the substrate does not coincide with a geometric center of an orthographic projection of the lens located on the light emitting device on the substrate.

6. The display panel according to claim 5, characterized in that: The plurality of first light-emitting devices include a first selected light-emitting device on a side close to the second display area and a second selected light-emitting device on a side away from the second display area, the geometric center of the orthographic projection of the first selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the first selected light-emitting device on the substrate, the orthographic projection of the second selected light-emitting device on the substrate has a first geometric center, the orthographic projection of the lens on the second selected light-emitting device on the substrate has a second geometric center, and the first geometric center is located on a side of the second geometric center close to the second display area; and / or The plurality of second light-emitting devices include a third selected light-emitting device close to the first display area and a fourth selected light-emitting device away from the first display area, the geometric center of the orthographic projection of the third selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the third selected light-emitting device on the substrate, the orthographic projection of the fourth selected light-emitting device on the substrate has a third geometric center, the orthographic projection of the lens on the fourth selected light-emitting device on the substrate has a fourth geometric center, and the third geometric center is located on the side of the fourth geometric center close to the first display area.

7. The display panel according to claim 5, characterized in that: The plurality of first light-emitting devices include a first selected light-emitting device close to the second display area and a plurality of second selected light-emitting devices far from the second display area, and the plurality of second selected light-emitting devices are arranged along the first direction; the geometric center of the orthographic projection of the first selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the first selected light-emitting device on the substrate; The orthographic projection of each of the second selected light-emitting devices on the substrate has a first geometric center, the orthographic projection of the lens on the second selected light-emitting device on the substrate has a second geometric center, the first geometric center is located on the side of the second geometric center close to the second display area, and there is a first distance between the first geometric center and the second geometric center, and the first distance gradually increases in the direction away from the second display area.

8. The display panel according to claim 7, characterized in that: The plurality of second light-emitting devices include a third selected light-emitting device close to the first display area and a plurality of fourth selected light-emitting devices far from the first display area, and the plurality of fourth selected light-emitting devices are arranged along the first direction; the geometric center of the orthographic projection of the third selected light-emitting device on the substrate coincides with the geometric center of the orthographic projection of the lens on the third selected light-emitting device on the substrate; The orthographic projection of each of the fourth selected light-emitting devices on the substrate has a third geometric center, the orthographic projection of the lens on the fourth selected light-emitting device on the substrate has a fourth geometric center, the third geometric center is located on a side of the fourth geometric center close to the first display area, and there is a second distance between the third geometric center and the fourth geometric center, and the second distance gradually increases in a direction away from the first display area.

9. The display panel according to claim 8, characterized in that: The display panel further comprises a third display area between the first display area and the second display area, and the plurality of light emitting devices further comprises a third light emitting device located in the third display area; The plurality of second selected light emitting devices include a second edge light emitting device away from the second display area, and the plurality of fourth selected light emitting devices include a fourth edge light emitting device away from the first display area; the first spacing corresponding to the second edge light emitting device is smaller than the second spacing corresponding to the fourth edge light emitting device; Wherein, in the third light-emitting device, the light-emitting layer and the second electrode are arranged in sequence along the third direction.

10. A display device, characterized in that: include: A display panel as claimed in any one of claims 1 to 9.

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