Display panel, preparation method thereof and display device

Abstract

The embodiment of the invention provides a display panel, a preparation method thereof and a display device, which are used for realizing peep-proof display in different use states and enabling peep-proof effects in different use states to tend to be consistent. The display panel includes: a substrate; the pixel units are located on one side of the substrate and arranged in an array mode in the first direction and the second direction, and the first direction intersects with the second direction; the pixel unit comprises a plurality of pixel groups; at least one pixel group comprises at least one first light-emitting unit and at least one second light-emitting unit which are arranged along a first direction; the first light emitting unit and the second light emitting unit in the same pixel group have the same light emitting color; the length of the first light-emitting unit in the first direction is L1, the length of the second light-emitting unit in the first direction is L2, and L1 is larger than L2; the length of the first light-emitting unit in the second direction is H1, the length of the second light-emitting unit in the second direction is H2, H1 is smaller than H2, H1 is smaller than L1, and H2 is larger than L2.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a display panel and a display device. Background Technology

[0002] With the continuous development of display technology, consumers' demands for displays are constantly increasing. Currently, various types of displays, including LCD screens and OLED screens, are emerging in large numbers and have developed rapidly. Based on this, display technologies such as 3D display, touch display technology, curved display, ultra-high resolution display, and privacy-protected display are constantly emerging.

[0003] Currently, researchers are paying close attention to improving the performance of privacy displays, including those using organic light-emitting diodes (OLEDs). Summary of the Invention

[0004] This invention provides a display panel, a method for manufacturing the same, and a display device, so that the display panel supports multiple usage states and display modes.

[0005] In a first aspect, embodiments of the present invention provide a display panel, comprising: Substrate; Multiple pixel units located on one side of the substrate are arranged in an array along a first direction and a second direction, and the first direction and the second direction intersect. A pixel unit includes multiple pixel groups; at least one pixel group includes at least one first light-emitting unit and at least one second light-emitting unit arranged along a first direction; the first light-emitting unit and the second light-emitting unit in the same pixel group emit the same light color; The length of the first light-emitting unit in the first direction is L1, and the length of the second light-emitting unit in the first direction is L2, where L1 > L2; The length of the first light-emitting unit in the second direction is H1, and the length of the second light-emitting unit in the second direction is H2, where H1 < H2, and... H1 < L1, H2 > L2.

[0006] Secondly, embodiments of the present invention provide a method for manufacturing a display panel, comprising: Provide substrate; Multiple pixel units are formed on one side of the substrate, and the pixel units are arranged in an array along a first direction and a second direction, with the first direction and the second direction intersecting. A pixel unit includes multiple pixel groups; a pixel group includes a first light-emitting unit and a second light-emitting unit arranged along a first direction; The length of the first light-emitting unit in the first direction is L1, and the length of the second light-emitting unit in the first direction is L2, where L1 > L2; The length of the first light-emitting unit in the second direction is H1, and the length of the second light-emitting unit in the second direction is H2, where H1 < H2, and... H1 < L1, H2 > L2; The light-emitting layer of the first light-emitting unit and the light-emitting layer of the second light-emitting unit are prepared through the same opening in the mask.

[0007] Thirdly, embodiments of the present invention provide a display device including the display panel described above.

[0008] The display panel, its manufacturing method, and the display device provided in this invention, by configuring at least one pixel group to include a first light-emitting unit and a second light-emitting unit with different extension directions, allow the first and second light-emitting units to be lit or turned off in different scenarios according to different display requirements when the display panel is working. This enables the display panel to support multiple usage states, including a first state and a second state. Furthermore, in each usage state, the display panel can support multiple display modes, including a sharing mode and a privacy mode, thereby enriching the usage states and display modes of the display panel and meeting the display requirements of the display panel in different usage states and display modes. Moreover, using this configuration, switching between different usage states or display modes can be achieved simply by controlling the lighting or turning off of the first and second light-emitting units, making operation convenient. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present invention; Figure 2 An enlarged schematic diagram of a pixel group provided in an embodiment of the present invention; Figure 3 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention; Figure 4 for Figure 2 The pixel group shown is a schematic diagram in the second state; Figure 5 A schematic diagram of a display panel for use in a vehicle-mounted display screen, provided as an embodiment of the present invention; Figure 6 A schematic diagram of another display panel for use in a vehicle display screen, provided as an embodiment of the present invention; Figure 7 This is a schematic diagram of the electrical connection between a pixel driving circuit and a first light-emitting unit and a second light-emitting unit, provided in an embodiment of the present invention. Figure 8 for Figure 7 The diagram shows a timing diagram of a pixel driving circuit. Figure 9 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention; Figure 10 A schematic diagram of yet another display panel provided in an embodiment of the present invention; Figure 11 A schematic diagram of yet another display panel provided in an embodiment of the present invention; Figure 12 An enlarged schematic diagram of a pixel unit provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of a mask template provided in an embodiment of the present invention. Detailed Implementation

[0011] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0012] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0015] This invention provides a display panel, such as... Figure 1 As shown, Figure 1This is a schematic diagram of a display panel provided in an embodiment of the present invention. The display panel includes: a substrate 1; a plurality of pixel units 2 located on one side of the substrate 1, the pixel units 2 being arranged in an array along a first direction h11 and a second direction h12, the first direction h11 and the second direction h12 intersecting; the pixel unit 2 includes a plurality of pixel groups 20; different pixel groups 20 emit light of different colors. Figure 1 The illustration includes multiple pixel groups 20 in pixel unit 2, including a first pixel group 201, a second pixel group 202, and a third pixel group 203.

[0016] In this embodiment of the invention, at least one pixel group 20 includes at least two light-emitting units, and the at least two light-emitting units include at least one first light-emitting unit 21 and at least one second light-emitting unit 22 arranged along a first direction h11; the first light-emitting unit 21 and the second light-emitting unit 22 in the same pixel group 20 emit the same light color. The first light-emitting unit 21 in different pixel groups 20 emits different light colors. Figure 1 Different fill patterns are used to distinguish pixel groups 20 with different light-emitting colors.

[0017] For example, the first light-emitting unit 21 and the second light-emitting unit 22 in the first pixel group 201 can emit green light, the first light-emitting unit 21 and the second light-emitting unit 22 in the second pixel group 202 can emit red light, and the first light-emitting unit 21 and the second light-emitting unit 22 in the third pixel group 203 can emit blue light.

[0018] Figure 1 The first pixel group 201 includes a first light-emitting unit 21 and a second light-emitting unit 22 arranged along the first direction h11, the second pixel group 202 includes a first light-emitting unit 21 and a second light-emitting unit 22 arranged along the first direction h11, and the third pixel group 203 includes a first light-emitting unit 21 and a second light-emitting unit 22 arranged along the first direction h11 as an illustration.

[0019] Combination Figure 2 As shown, Figure 2 This is an enlarged schematic diagram of a pixel group provided in an embodiment of the present invention. For the first light-emitting unit 21 and the second light-emitting unit 22 in the same pixel group 20, the length of the first light-emitting unit 21 in the first direction h11 is L1, and the length of the second light-emitting unit 22 in the first direction h11 is L2, wherein L1 > L2; the length of the first light-emitting unit 21 in the second direction h12 is H1, and the length of the second light-emitting unit 22 in the second direction h12 is H2, wherein H1 < H2, and H1 < L1, H2 > L2.

[0020] In this embodiment of the invention, by setting H1 < L1 and H2 > L2, it is equivalent to setting the first light-emitting unit 21 as a long strip structure extending in the first direction h11 and the second light-emitting unit 22 as a long strip structure extending in the second direction h12. The first direction h11 and the second direction h12 intersect, that is, the long side directions of the first light-emitting unit 21 and the second light-emitting unit 22 are different.

[0021] Combination Figure 3 As shown, Figure 3 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention. The display panel further includes a light-shielding layer 4, which includes a light-shielding opening 40. Along a preset direction h0, the maximum light emission angle of the light emitted by the light-emitting unit 02 and exiting through the light-shielding opening 40 is θ. The light-emitting unit 02 may include the first light-emitting unit 21 or the second light-emitting unit 22 described above. The maximum light emission angle θ refers to the angle between the propagation direction of the light emitted by the light-emitting unit 02 through the light-shielding opening 40 and the normal to the substrate 1. L0 is the length of the light-emitting unit 02 in the preset direction h0, d0 is the distance between the light-emitting unit 02 and the edge of the light-shielding opening 40 in the preset direction h0, and T is the distance between the light-shielding layer 4 and the light-emitting unit 02 in the direction perpendicular to the plane of the substrate 1. It can be seen that the larger the length L0 of the light-emitting unit 02 in the preset direction h0, the larger the maximum light emission angle θ of the large-angle light emitted by the light-emitting unit 02 towards the preset direction h0.

[0022] By setting L1 > L2, this embodiment of the invention makes it easier to make the maximum light emission angle of the light emitted by the first light-emitting unit 21 on both sides of the first direction h11 greater than the maximum light emission angle of the light emitted by the second light-emitting unit 22 on both sides of the first direction h11.

[0023] Therefore, when the first light-emitting unit 21 is lit, users located at a wide viewing angle on both sides of the first direction h11 of the display panel can receive more of the wide-angle light emitted by the first light-emitting unit 21. Based on this, embodiments of the present invention can enable the display panel to operate in a first state A1. In the first state A1, at least some users are located on both sides of the first direction h11 of the display panel. Furthermore, in this first state A1, embodiments of the present invention can enable the display panel to have a sharing mode. In the sharing mode, users located at a wide viewing angle on both sides of the first direction h11 of the display panel can clearly see the display screen.

[0024] Similarly, by setting H2 > H1 in this embodiment of the invention, it is advantageous to make the maximum light emission angle of the light emitted by the second light-emitting unit 22 propagating towards both sides of the second direction h12 greater than the maximum light emission angle of the large-angle light emitted by the first light-emitting unit 21 propagating towards both sides of the second direction h12.

[0025] Therefore, when the second light-emitting unit 22 is lit, users located at a wide viewing angle on both sides of the second direction h12 of the display panel can receive more of the wide-angle light emitted by the second light-emitting unit 22. Based on this, embodiments of the present invention can enable the display panel to also operate in a second state A2, in which at least some users are located on both sides of the second direction h12 of the display panel. Furthermore, in this second state A2, embodiments of the present invention can also enable the display panel to have a sharing mode, in which users located at a wide viewing angle on both sides of the second direction h12 of the display panel can clearly see the display screen.

[0026] Similarly, in this embodiment of the invention, by setting H1 < H2, that is, by setting the length of the first light-emitting unit 21 in the second direction h12 to be smaller, when the first light-emitting unit 21 is lit, users located at a wide viewing angle on both sides of the display panel in the second direction h12 can receive less of the wide-angle light emitted by the first light-emitting unit 21. Therefore, in the second state A2, this embodiment of the invention can also enable the display panel to have a privacy mode. In the privacy mode, users located at a wide viewing angle on both sides of the display panel in the second direction h12 cannot see the display screen clearly.

[0027] Similarly, in this embodiment of the invention, by setting L2 < L1, that is, by setting the second light-emitting unit 22 to have a smaller length in the first direction h11, when the second light-emitting unit 22 is lit, users located at a wide viewing angle on both sides of the display panel in the first direction h11 can receive less of the wide-angle light emitted by the second light-emitting unit 22. Therefore, in the first state A1, this embodiment of the invention can also enable the display panel to have a privacy mode. In the privacy mode, users located at a wide viewing angle on both sides of the display panel in the first direction h11 cannot see the display screen clearly.

[0028] When the display panel is in operation, embodiments of the present invention enable the display panel to switch between a first state A1 and a second state A2. The first state A1 and the second state A2 may correspond to different placement orientations of the display panel relative to the first reference direction Z1. Embodiments of the present invention allow the display panel to switch between the first state A1 and the second state A2 by rotating the display panel.

[0029] In this embodiment of the invention, the user can be positioned on either side of the display panel along the first reference direction Z1. The first reference direction Z1 is independent of the display panel, that is, the first reference direction Z1 does not change due to the rotation of the display panel. In the first state A1, as... Figure 1 and Figure 2 As shown, the first direction h11 is parallel to the first reference direction Z1. In the second state A2, as...Figure 4 As shown, Figure 4 for Figure 2 The diagram shown illustrates a pixel group in the second state A2, where the second direction h12 is parallel to the first reference direction Z1. It can be seen that the first reference direction Z1 does not change with the rotation of the display panel.

[0030] For example, such as Figure 1 As shown, the display panel also includes multiple scan lines SL and multiple data lines DL. For example, the first direction h11 is parallel to the extension direction of the scan lines SL, and the second direction h12 is parallel to the extension direction of the data lines DL.

[0031] In this embodiment of the invention, the first state A1 can be understood as the state in which the scan line SL is parallel to the first reference direction Z1, and the second state A2 can be understood as the state in which the data line DL is parallel to the first reference direction Z1.

[0032] When using the display panel for an in-vehicle display, such as Figure 5 As shown, Figure 5 This is a schematic diagram of a display panel for an in-vehicle display screen provided by an embodiment of the present invention. The first reference direction Z1 is the arrangement direction between the driver's position and the passenger's position, as shown below. Figure 5 As shown, in the first state A1, the first direction h11 is parallel to the first reference direction Z1.

[0033] like Figure 6 As shown, Figure 6 This is a schematic diagram of another display panel for vehicle display provided in an embodiment of the present invention. In the second state A2, the second direction h12 is parallel to the first reference direction Z1. Figure 5 and Figure 6 The display panel shows the time as 11:30 am.

[0034] When the display panel is set to a rectangle, for example, one of the first state A1 and the second state A2 can be the landscape state of the display panel, and the other can be the portrait state of the display panel. Figure 5 With the first state A1 as the landscape orientation of the display panel, Figure 6 The second state, A2, is used as an example to illustrate the portrait mode of the display panel. Of course, Figure 5 and Figure 6 This invention uses a rectangular shape as an example. The shape of the display panel can also be designed to be other shapes according to different design requirements. The shape of the display panel is not limited in this invention.

[0035] When the display panel is in operation, it supports both sharing mode and privacy mode in both the first state A1 and the second state A2.

[0036] In the shared mode of the first state A1, this embodiment of the invention can illuminate the first light-emitting unit 21, that is, make the first light-emitting unit 21 a shared pixel illuminated in the shared mode of the first state A1. In the shared mode of the first state A1, a user located at the normal viewing angle of the display panel can receive small-angle light emitted by the first light-emitting unit 21, thereby being able to see the display screen clearly. In addition, a user located at a large viewing angle on both sides of the first direction h11 of the display panel can receive large-angle light emitted by the first light-emitting unit 21, thereby also being able to see the display screen clearly. Here, small-angle light refers to light emitted by the first light-emitting unit 21 with a small angle between the propagation direction of the light emitted by the first light-emitting unit 21 and the normal of the display panel. Large-angle light refers to light emitted by the first light-emitting unit 21 with a large angle between the propagation direction of the light emitted by the first light-emitting unit 21 and the normal of the display panel. Viewing angle refers to the angle between the viewing direction and the normal of the display panel.

[0037] In the privacy mode of the first state A1, the second light-emitting unit 22 can be illuminated in this embodiment of the invention. That is, the second light-emitting unit 22 is used as the privacy pixel of the first state A1 illuminated in the privacy mode of the first state A1. In the privacy mode of the first state A1, the large-angle light intensity emitted by the second light-emitting unit 22 towards both sides of the first direction h11 is relatively weak. Therefore, users located at large viewing angles on both sides of the first direction h11 of the display panel cannot see the display screen clearly. Only users located at the direct viewing angle of the display panel can receive the small-angle light emitted by the second light-emitting unit 22, thereby being able to see the display screen clearly.

[0038] In the shared mode of the second state A2, the second light-emitting unit 22 can be illuminated in this embodiment of the invention. That is, the second light-emitting unit 22 can also function as a shared pixel illuminated in the shared mode of the second state A2. In the shared mode of the second state A2, a user located at a normal viewing angle of the display panel can receive the small-angle light emitted by the second light-emitting unit 22, thereby clearly seeing the displayed image. Furthermore, users located at a large viewing angle on either side of the second direction h12 of the display panel can also receive the large-angle light emitted by the second light-emitting unit 22, thereby also clearly seeing the displayed image.

[0039] In the privacy mode of the second state A2, the first light-emitting unit 21 can be illuminated in this embodiment of the invention. That is, the first light-emitting unit 21 can also serve as a privacy pixel illuminated in the privacy mode of the second state A2. In the privacy mode of the second state A2, the large-angle light intensity emitted by the first light-emitting unit 21 towards both sides of the second direction h12 is relatively weak. Therefore, users located on both sides of the display panel in the second direction h12 cannot see the display screen clearly. Only users located at the direct viewing angle of the display panel can receive the small-angle light emitted by the first light-emitting unit 21, thereby being able to see the display screen clearly.

[0040] As can be seen, by using the display panel provided in this embodiment of the invention, at least one pixel group 20 is configured to include a first light-emitting unit 21 and a second light-emitting unit 22 with different extending directions. When the display panel is working, the first light-emitting unit 21 and the second light-emitting unit 22 can be lit or turned off in different scenarios according to different display requirements. This allows the display panel to support multiple usage states, including a first state A1 and a second state A2. Furthermore, in each usage state, the display panel can support multiple display modes, including a sharing mode and a privacy mode, thereby enriching the usage states and display modes of the display panel and meeting the display requirements of the display panel in different usage states and different display modes. Moreover, with this configuration, switching between different usage states or display modes can be achieved simply by controlling the lighting or turning off of the first light-emitting unit 21 and the second light-emitting unit 22, making the operation convenient.

[0041] For example, in embodiments of the present invention, L1 ≠ H2; L2 ≠ H1.

[0042] Alternatively, in this embodiment of the invention, L1=H2; L2=H1. This configuration improves the consistency of display effects in the same mode under different states. For example, it makes the display effects of the shared mode in the first state A1 and the shared mode in the second state A2 consistent, and also makes the display effects of the privacy mode in the first state A1 and the privacy mode in the second state A2 consistent.

[0043] In this embodiment of the invention, the display panel further includes multiple pixel driving circuits. For example... Figure 7 As shown, Figure 7 This is a schematic diagram of the electrical connection of a pixel driving circuit and a first light-emitting unit and a second light-emitting unit provided in an embodiment of the present invention. The pixel driving circuit 3 includes a driving transistor M1, a first light-emitting control module 31 and a second light-emitting control module 32, wherein the first light-emitting control module 31 is electrically connected between the driving transistor M1 and the first light-emitting unit 21, and the second light-emitting control module 32 is electrically connected between the driving transistor M1 and the second light-emitting unit 22.

[0044] In the shared mode of the first state A1, the first light-emitting control module 31 is turned on to make the first light-emitting unit 21 emit light; in the privacy mode of the first state A1, the second light-emitting control module 32 is turned on to make the second light-emitting unit 22 emit light; in the shared mode of the second state A2, the second light-emitting control module 32 is turned on to make the second light-emitting unit 22 emit light; in the privacy mode of the second state A2, the first light-emitting control module 31 is turned on to make the first light-emitting unit 21 emit light.

[0045] For example, such as Figure 7 As shown, the pixel driving circuit 3 also includes a third light emission control module 33, a gate reset module 34, an anode reset module 35, a data writing module 36, a threshold compensation module 37, and a storage capacitor Cst.

[0046] The gate reset module 34 includes a gate reset transistor M2, which is electrically connected between the first reset signal line Ref1 and the gate of the driving transistor M1. It is used to reset the gate of the driving transistor M1 in response to the effective level provided by the first scan signal line S1.

[0047] The anode reset module 35 includes an anode reset transistor M3, which is electrically connected between the second reset signal line Ref2 and the first light-emitting unit 21. It is used to reset the anode voltage of the first light-emitting unit 21 in response to the effective level provided by the second scan signal line S2.

[0048] The data writing module 36 includes a data writing transistor M4, which is electrically connected between the data line Data and the first terminal of the driving transistor M1. The threshold compensation module 37 includes a threshold compensation transistor M5, which is electrically connected between the second terminal of the driving transistor M1 and its gate. The data writing transistor M4 and the threshold compensation transistor M5 are used to write the data voltage to the gate of the driving transistor M1 and perform threshold compensation on the driving transistor M1 in response to an effective level provided by the second scan signal line S2.

[0049] The first light-emitting control module 31 includes a first light-emitting control transistor M6, which is electrically connected between the second electrode of the driving transistor M1 and the first light-emitting unit 21.

[0050] The second light-emitting control module 32 includes a second light-emitting control transistor M7, which is electrically connected between the second electrode of the driving transistor M1 and the second light-emitting unit 22.

[0051] The third light-emitting control module 33 includes a third light-emitting control transistor M8, which is electrically connected between the power signal line PVDD and the first terminal of the driving transistor M1.

[0052] For example, in combination Figure 7 and Figure 8 As shown, Figure 8 for Figure 7 The diagram shows a timing diagram of a pixel driving circuit. In the shared mode B1 of the first state A1, the pixel driving circuit 3 responds to the enable level provided by the first light emission control signal line E1 and the third light emission control signal line E3, and transmits the driving current converted by the driving transistor M1 to the first light emission unit 21, driving the first light emission unit 21 to emit light.

[0053] In the privacy mode B2 of the first state A1, the pixel driving circuit 3 responds to the enable level provided by the second light emission control signal line E2 and the third light emission control signal line E3, and transmits the driving current converted by the driving transistor M1 to the second light emission unit 22 to emit light.

[0054] In the shared mode B1 of the second state A2, the pixel driving circuit 3 responds to the enable level provided by the second light emission control signal line E2 and the third light emission control signal line E3, and transmits the driving current converted by the driving transistor M1 to the second light emission unit 22, driving the second light emission unit 22 to emit light.

[0055] In the privacy mode B2 of the second state A2, the pixel driving circuit 3 responds to the enable level provided by the first light emission control signal line E1 and the third light emission control signal line E3, and transmits the driving current converted by the driving transistor M1 to the first light emission unit 21 to emit light.

[0056] Based on the above structure, the first light-emitting unit 21 and the second light-emitting unit 22 can share the driving current provided by the same pixel driving circuit 3 to emit light, which simplifies the circuit design of the display panel 100 and the space occupied by the pixel driving circuit 3 in the display panel 100, and is conducive to improving the pixel density.

[0057] For example, in combination Figure 7 and Figure 8 As shown, in the shared mode B1 of the first state A1, the pixel driving circuit 3 responds to the disabled level provided by the second light-emitting control signal line E2, controlling the transmission path between the pixel driving circuit 3 and the second light-emitting unit 22 to be turned off, so that the second light-emitting unit 22 does not emit light. Using this setting, in the shared mode B1 of the first state A1, excessive brightness differences between the display panel at normal viewing angles and wide viewing angles can be avoided, which is beneficial to improving the brightness consistency of the display panel at different viewing angles.

[0058] In the privacy mode B2 of the first state A1, the pixel driving circuit 3 responds to the non-enable level provided by the first light emission control signal line E1, controlling the transmission path between the pixel driving circuit 3 and the first light emission unit 21 to be turned off, so that the first light emission unit 21 does not emit light. By adopting this setting, in the privacy mode B2 of the first state A1, the light emission brightness of the display panel at a wide viewing angle can be reduced, which is beneficial to ensuring the privacy effect of the display panel at a wide viewing angle.

[0059] In the shared mode B1 of the second state A2, the pixel driving circuit 3 responds to the disabled level provided by the first light-emitting control signal line E1, controlling the transmission path between the pixel driving circuit 3 and the first light-emitting unit 21 to be turned off, so that the first light-emitting unit 21 does not emit light. Using this setting, in the shared mode B1 of the second state A2, excessive brightness differences between the display panel at normal viewing angles and wide viewing angles can be avoided, which is beneficial to improving the brightness consistency of the display panel at different viewing angles.

[0060] In the privacy mode B2 of the second state A2, the pixel driving circuit 3 responds to the disabled level provided by the second light emission control signal line E2, controlling the transmission path between the pixel driving circuit 3 and the second light emission unit 22 to be turned off, so that the second light emission unit 22 does not emit light. By adopting this setting, in the privacy mode B2 of the second state A2, the light emission brightness of the display panel at a wide viewing angle can be reduced, which is beneficial to ensuring the privacy effect of the display panel at a wide viewing angle.

[0061] For example, such as Figure 2 , Figure 3 and Figure 4 As shown, the display panel also includes a light-shielding layer 4, which is located on the side of the pixel unit 2 away from the substrate 1. The light-shielding layer 4 includes a plurality of light-shielding openings 40, including a first light-shielding opening 41 and a second light-shielding opening 42. Along a direction h2 perpendicular to the plane of the substrate 1, the first light-shielding opening 41 at least partially overlaps with the first light-emitting unit 21; the second light-shielding opening 42 at least partially overlaps with the second light-emitting unit 22. Figure 2 and Figure 4 As shown, along the first direction h11, the shortest distance between the first light-shielding opening 41 and the first light-emitting unit 21 is d1, and the shortest distance between the second light-shielding opening 42 and the second light-emitting unit 22 is d2. Along the second direction h12, the shortest distance between the first light-shielding opening 41 and the first light-emitting unit 21 is d3, and the shortest distance between the second light-shielding opening 42 and the second light-emitting unit 22 is d4. Among them, d1, d2, d3 and d4 satisfy at least one of the following relationships: d1 > d3, d4 > d2, d1 > d2, d4 > d3.

[0062] As mentioned above, the maximum light emission angle θ of the light emitted by the light-emitting unit 02 and exiting through the light-shielding opening 40 is related to the distance d0 between the light-emitting unit 02 and the light-shielding opening 40 in the preset direction h0. In this embodiment of the invention, by setting d1 > d3, the maximum light emission angle of the light emitted by the first light-emitting unit 21 towards the first direction h11 can be greater than the maximum light emission angle of the light emitted towards the second direction h12. That is, the maximum light emission angle of the first light-emitting unit 21 in the first direction h11 can be increased. Therefore, in the shared mode of the first state A1 where the first direction h11 is parallel to the first reference direction Z1, this embodiment of the invention can illuminate the first light-emitting unit 21 to increase the visible viewing angle of the display panel in the shared mode of the first state A1 and improve the display effect of the display panel in the shared mode of the first state A1.

[0063] In addition, the second light-emitting unit 22 is lit up in the privacy mode of the first state A1 to reduce the viewing angle of the display panel in the privacy mode of the first state A1 and improve the privacy effect of the display panel in the privacy mode of the first state A1.

[0064] By setting d4 > d2, the maximum light emission angle of the light emitted by the second light-emitting unit 22 towards the second direction h12 can be made greater than the maximum light emission angle of the light emitted towards the first direction h11. That is, the maximum light emission angle of the second light-emitting unit 22 in the second direction h12 can be increased. Therefore, in the shared mode of the second state A2 where the second direction h12 is parallel to the first reference direction Z1, the second light-emitting unit 22 can be illuminated to improve the display effect of the display panel in the shared mode of the second state A2. Furthermore, by illuminating the first light-emitting unit 21 in the privacy mode of the second state A2, the visible viewing angle of the display panel in the privacy mode of the second state A2 is reduced, thereby improving the privacy effect of the display panel in the privacy mode of the second state A2.

[0065] Furthermore, by setting d1 > d2, the maximum light emission angle of the first light-emitting unit 21 in the first direction h11 can be greater than the maximum light emission angle of the second light-emitting unit 22 in the first direction h11. Thus, in the shared mode of the first state A1, the present invention can light up the first light-emitting unit 21 and turn off the second light-emitting unit 22 to make full use of the large-angle light emitted by the first light-emitting unit 21 and increase the brightness of the display panel at a wide viewing angle.

[0066] Furthermore, by setting d4 > d3 in this embodiment of the invention, the maximum light emission angle of the first light-emitting unit 21 in the second direction h12 can be made smaller than the maximum light emission angle of the second light-emitting unit 22 in the second direction h12. Thus, in the shared mode of the second state A2, the second light-emitting unit 22 can be lit up and the first light-emitting unit 21 can be turned off, so as to make full use of the large-angle light emitted by the second light-emitting unit 22 and improve the brightness of the display panel at a wide viewing angle.

[0067] Optionally, in this embodiment of the invention, d3 can be set to d2. With this setting, the maximum light emission angle of the light emitted by the first light-emitting unit 21 towards the second direction h12 can be close to or the same as the maximum light emission angle of the light emitted by the second light-emitting unit 22 towards the first direction h11. This allows the viewing angle of the display panel in the privacy mode of the second state A2 to be close to or the same as the viewing angle in the privacy mode of the first state A1.

[0068] And / or, in embodiments of the present invention, d4 can also be set to d1. By adopting this setting, the maximum light emission angle of the light emitted by the first light-emitting unit 21 toward the first direction h11 can be close to or the same as the maximum light emission angle of the light emitted by the second light-emitting unit 22 toward the second direction h12, thereby making the large viewing angle brightness in the shared mode of the first state close to or the same as the large viewing angle brightness in the shared mode of the second state A2.

[0069] In summary, by setting d3=d2 and / or d4=d1, the embodiments of the present invention can make the display panel's display effect in the same display mode under different usage states, such as the shared mode of the first state A1 and the shared mode of the second state A2, or the privacy mode of the first state A1 and the privacy mode of the second state A2 tend to be consistent.

[0070] For example, such as Figure 9 As shown, Figure 9 This is a cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention. The display panel further includes a pixel definition layer 5 located on one side of the substrate 1. The pixel definition layer 5 includes a plurality of pixel openings 50; the plurality of pixel openings 50 include at least a first pixel opening 501 and a second pixel opening 502 spaced apart; the first light-emitting unit 21 and the second light-emitting unit 22 each include a first electrode 2001, a light-emitting layer 2000 and a second electrode 2002 stacked together; optionally, one of the first electrode 2001 and the second electrode 2002 is an anode and the other is a cathode. Exemplarily, in an embodiment of the present invention, the first electrode 2001 can be electrically connected to the aforementioned pixel driving circuit (…). Figure 9 (Not shown). When the display panel is working, under the pressure difference between the first electrode 2001 and the second electrode 2002, the light-emitting layer 2000 can emit light of a predetermined color.

[0071] For example, the light-emitting layer 2000 includes any one of organic light-emitting materials, quantum dot light-emitting materials, and inorganic light-emitting materials. This embodiment of the invention does not impose specific limitations on the material of the light-emitting layer 2000.

[0072] like Figure 9 As shown, the light-emitting layer 2000 of the first light-emitting unit 21 is at least partially located within the first pixel opening 501, and the light-emitting layer 2000 of the second light-emitting unit 22 is at least partially located within the second pixel opening 502.

[0073] In embodiments of the present invention, such as Figure 9 As shown, the first electrode 2001 of the first light-emitting unit 21 and the first electrode 2001 of the second light-emitting unit 22 are insulated from each other. This arrangement ensures that the first light-emitting unit 21 and the second light-emitting unit 22 independently receive electrical signals and emit light independently. For example, as shown... Figure 9 As shown, the first electrode 2001 of the first light-emitting unit 21 and the first electrode 2001 of the second light-emitting unit 22 are arranged at intervals.

[0074] For example, in embodiments of the present invention, the pixel group 20 may include at least two first light-emitting units 21, the at least two first light-emitting units 21 being arranged along a second direction h12; and the at least two first light-emitting units 21 being located on the same side of the second light-emitting unit 22 in the first direction h11. Figure 10 As shown, Figure 10 This is a schematic diagram of another display panel provided in an embodiment of the present invention, wherein the first pixel group 201, the second pixel group 202, and the third pixel group 203 each include two first light-emitting units 21 as an illustration. Based on this arrangement, the space utilization rate in the display panel can be improved, the light-emitting area of ​​the first light-emitting unit 21 can be increased, thereby extending the service life of the first light-emitting unit 21, and improving the brightness of the display panel.

[0075] Optional, such as Figure 10 As shown, among the at least two first light-emitting units 21 arranged along the second direction h12, the maximum distance between the two farthest first light-emitting units 21 is H3, where H3 ≤ H2. By adopting this arrangement, while increasing the number of first light-emitting units 21 and increasing the light-emitting area of ​​the first light-emitting units 21, it is possible to avoid excessively increasing the total space occupied by multiple first light-emitting units 21 along the second direction h12, thereby preventing the compression of the space of another pixel group 20 adjacent to this pixel group 20.

[0076] For example, such as Figure 1 and Figure 10As shown, the multiple pixel groups 20 in the same pixel unit 2 include at least a first pixel group 201, a second pixel group 202, and a third pixel group 203; wherein, the first pixel group 201 and the second pixel group 202 are arranged along the second direction h12; the first pixel group 201 and the third pixel group 203 are at least partially staggered in the first direction h11; the second pixel group 202 and the third pixel group 203 are at least partially staggered in the first direction h11. By adopting this arrangement, the first pixel group 201, the second pixel group 202, and the third pixel group 203 in the same pixel unit 2 can be arranged in a triangular pattern, which improves the color mixing uniformity of the pixel unit 2 while avoiding excessive space occupation by the pixel unit 2 in the first direction h11 or the second direction h12.

[0077] For example, such as Figure 1 and Figure 10 As shown, for two adjacent pixel units 2 in the second direction h12, along the second direction h12, the first pixel group 201 and the second pixel group 202 of one unit at least partially overlap with the third pixel group 203 of the other unit. This arrangement allows the first pixel group 201, the second pixel group 202, and the third pixel group 203 to be arranged alternately along the second direction h12, ensuring a uniform distribution of these pixels along the second direction h12, which is beneficial for improving the color mixing uniformity of the display panel.

[0078] For example, such as Figure 1 and Figure 10 As shown, for two adjacent pixel units 2 along the first direction h11, the first pixel group 201 of one unit at least partially overlaps with the first pixel group 201 of the other unit, the second pixel group 202 of one unit at least partially overlaps with the second pixel group 202 of the other unit, and the third pixel group 203 of one unit at least partially overlaps with the third pixel group 203 of the other unit. This arrangement allows multiple pixel groups 20 emitting light of the same color to be arranged along the first direction h11, improving the regularity of pixel arrangement.

[0079] For example, such as Figure 11 As shown, Figure 11 This is a schematic diagram of another display panel provided in an embodiment of the present invention. In this embodiment, the pixel group 20 may further include at least two second light-emitting units 22, which are arranged along a first direction h11, and the at least two second light-emitting units 22 are located on the same side of the first light-emitting unit 21 in the first direction h11. This arrangement can improve the space utilization of the display panel, increase the light-emitting area of ​​the second light-emitting units 22, thereby extending the lifespan of the second light-emitting units 22, and improving the brightness of the display panel.

[0080] Optional, such as Figure 11 As shown, the multiple pixel groups 20 in the same pixel unit 2 include at least a first pixel group 201, a second pixel group 202, and a third pixel group 203 arranged along the second direction h12; wherein, the first light-emitting unit 21 in the first pixel group 201 and the first light-emitting unit 21 in the second pixel group 202 are at least partially staggered in the second direction h12; the first light-emitting unit 21 in the second pixel group 202 and the first light-emitting unit 21 in the third pixel group 203 are at least partially staggered in the second direction h12. This arrangement can improve the space utilization of the display panel, increase the area of ​​each light-emitting unit, and reduce the area of ​​the display panel where no light-emitting units are located.

[0081] For example, such as Figure 11 As shown, in this embodiment of the invention, the first light-emitting unit 21 of the first pixel group 201, the second light-emitting unit 22 of the second pixel group 202, and the first light-emitting unit 21 of the third pixel group 203 can be arranged along the second direction h12.

[0082] When the first pixel group 201, the second pixel group 202, and the third pixel group 203 all include a first light-emitting unit 21 and a second light-emitting unit 22, for example, as shown... Figure 12 As shown, Figure 12 This is an enlarged schematic diagram of a pixel unit provided in an embodiment of the present invention. The length of the first light-emitting unit 21 in the first pixel group 201 in the first direction h11 is L11, the length of the second light-emitting unit 22 in the first direction h11 is L21, the length of the first light-emitting unit 21 in the second direction h12 is H11, and the length of the second light-emitting unit 22 in the second direction h12 is H21.

[0083] In the second pixel group 202, the length of the first light-emitting unit 21 in the first direction h11 is L12, the length of the second light-emitting unit 22 in the first direction h11 is L22, the length of the first light-emitting unit 21 in the second direction h12 is H12, and the length of the second light-emitting unit 22 in the second direction h12 is H22.

[0084] In the third pixel group 203, the length of the first light-emitting unit 21 in the first direction h11 is L13, and the length of the second light-emitting unit 22 in the first direction h11 is L23, where L13 > L23; the length of the first light-emitting unit 21 in the second direction h12 is H13, and the length of the second light-emitting unit 22 in the second direction h12 is H23.

[0085] For example, L1 > L2 includes: L11 > L21, L12 > L22; L13 > L23; H1 < H2 includes: H11 < H21, H12 < H22, H13 < H23; H1 < L1 includes: H11 < L11; H12 < L12; H13 < L13; H2 > L2 includes: H21 > L21, H22 > L22; H23 > L23.

[0086] Optionally, in embodiments of the present invention, L11≤L12≤L13; L21≤L22≤L23; H11≤H12≤H13; H21≤H22≤H23 can be set.

[0087] By adopting this configuration, embodiments of the present invention can differentiate the luminous efficiency of the light-emitting units in the first pixel group 201, the second pixel group 202, and the third pixel group 203, so that the efficiency of the light-emitting units in each pixel group matches the area of ​​the light-emitting units included in that pixel group. For example, the luminous efficiency of the light-emitting units in the first pixel group 201 is greater than that in the second pixel group 202, and the luminous efficiency of the light-emitting units in the second pixel group 202 is greater than that in the third pixel group 203. This ensures that the light emitted from the first pixel group 201, the second pixel group 202, and the third pixel group 203 is matched to produce standard white light, avoiding color shift, while also adapting to the selection of existing light-emitting materials and reducing the difficulty of selecting light-emitting materials.

[0088] For example, such as Figure 12 As shown, the display panel also includes a light-shielding layer 4, which includes a plurality of first light-shielding openings 41 and a plurality of second light-shielding openings 42; along the direction h2 perpendicular to the plane of the substrate, the first light-shielding openings 41 at least partially overlap with the first light-emitting unit 21; and the second light-shielding openings 42 at least partially overlap with the second light-emitting unit 22.

[0089] Along the first direction h11, the shortest distance between the first light-shielding opening 41 corresponding to the first pixel group 201 and the first light-emitting unit 21 in the first pixel group 201 is d11; the shortest distance between the second light-shielding opening 42 corresponding to the first pixel group 201 and the second light-emitting unit 22 in the first pixel group 201 is d21; the shortest distance between the first light-shielding opening 41 corresponding to the second pixel group 202 and the first light-emitting unit 21 in the second pixel group 202 is d12; the shortest distance between the second light-shielding opening 42 corresponding to the second pixel group 202 and the second light-emitting unit 22 in the second pixel group 202 is d22; the shortest distance between the first light-shielding opening 41 corresponding to the third pixel group 203 and the first light-emitting unit 21 in the third pixel group 203 is d13; and the shortest distance between the second light-shielding opening 42 corresponding to the third pixel group 203 and the second light-emitting unit 22 in the third pixel group 203 is d23. Along the second direction h12, the shortest distance between the first light-shielding opening 41 corresponding to the first pixel group 201 and the first light-emitting unit 21 in the first pixel group 201 is d31; the shortest distance between the second light-shielding opening 42 corresponding to the first pixel group 201 and the second light-emitting unit 22 in the first pixel group 201 is d41; the shortest distance between the first light-shielding opening 41 corresponding to the second pixel group 202 and the first light-emitting unit 21 in the second pixel group 202 is d32; the shortest distance between the second light-shielding opening 42 corresponding to the second pixel group 202 and the second light-emitting unit 22 in the second pixel group 202 is d42; the shortest distance between the first light-shielding opening 41 corresponding to the third pixel group 203 and the first light-emitting unit 21 in the third pixel group 203 is d33; the shortest distance between the second light-shielding opening 42 corresponding to the third pixel group 203 and the second light-emitting unit 22 in the third pixel group 203 is d43. For example, the above d1>d3 includes: d11>d31, d12>d32, d13>d33; the above d4>d2 includes: d41>d21, d42>d22, d43>d23; the above d1>d2 includes: d11>d21, d12>d22, d13>d23; the above d4>d3 includes: d41>d31, d42>d32, d43>d33.

[0090] Optionally, in embodiments of the present invention, d11≥d12≥d13; d21≥d22≥d23; d31≥d32≥d33; d41≥d42≥d43.

[0091] By adopting this configuration, embodiments of the present invention can differentiate the shortest distance between the light-shielding opening and the corresponding light-emitting unit to compensate for the area differences of the light-emitting units in each pixel group. On the one hand, this allows the light emitted from the first pixel group 201, the second pixel group 202, and the third pixel group 203 to match qualified white light, avoiding color shift. On the other hand, it also makes the maximum light emission angle of pixel groups with different areas tend to be consistent, avoiding the large-viewing-angle color shift problem caused by different maximum light emission angles of pixel groups of different colors.

[0092] In this embodiment of the invention, the light-shielding opening corresponding to the pixel group refers to the light-shielding opening overlapping the pixel group in a direction perpendicular to the plane of the substrate.

[0093] Based on the same inventive concept, embodiments of the present invention also provide a method for manufacturing a display panel, combined with Figure 1 and Figure 9 As shown, the preparation method includes: Step S1: Provide substrate 1; Step S2: A plurality of pixel units 2 are formed on one side of the substrate 1. The pixel units 2 are arranged in an array along the first direction h11 and the second direction h12, and the first direction h11 and the second direction h12 intersect. Pixel unit 2 includes multiple pixel groups 20; pixel group 20 includes a first light-emitting unit 21 and a second light-emitting unit 22 arranged along a first direction h11; the length of the first light-emitting unit 21 in the first direction h11 is L1, and the length of the second light-emitting unit 22 in the first direction h11 is L2, wherein L1 > L2; the length of the first light-emitting unit 21 in the second direction h12 is H1, and the length of the second light-emitting unit 22 in the second direction h12 is H2, wherein H1 < H2, and H1 < L1, H2 > L2.

[0094] In this embodiment of the invention, the light-emitting layer 2000 of the first light-emitting unit 21 and the light-emitting layer 2000 of the second light-emitting unit 22 are prepared through the same opening of a mask.

[0095] For example, such as Figure 13 As shown, Figure 13 This is a schematic diagram of a photomask provided in an embodiment of the present invention, wherein the photomask can be used to prepare... Figure 1 The light-emitting layer in the second pixel group 202 shown, as Figure 13 As shown, the mask template 6 includes multiple openings 60, and the light-emitting layer 2000 of the first light-emitting unit 21 and the light-emitting layer 2000 of the second light-emitting unit 22 in the first pixel group 201 are prepared through the same opening 60.

[0096] For example, the light-emitting layer 2000 can be prepared by vapor deposition process. In this embodiment of the invention, by having the light-emitting layer 2000 of the first light-emitting unit 21 and the light-emitting layer 2000 of the second light-emitting unit 22 prepared through the same opening of the mask, the complexity of the vapor deposition process can be reduced, and it is beneficial to increase the opening ratio of the first light-emitting unit 21 and the second light-emitting unit 22.

[0097] Furthermore, the display panel obtained using the manufacturing method provided in this embodiment of the invention, by setting at least one pixel group 20 to include a first light-emitting unit 21 and a second light-emitting unit 22 with different extension directions, allows the first light-emitting unit 21 and the second light-emitting unit 22 to be lit or turned off in different scenarios according to different display requirements when the display panel is working. This enables the display panel to support multiple usage states, including a first state A1 and a second state A2. Moreover, in each usage state, the display panel can support multiple display modes, including a sharing mode and a privacy mode, thereby enriching the usage states and display modes of the display panel and meeting the display requirements of the display panel in different usage states and different display modes. Moreover, with this setting method, switching between different usage states or display modes can be achieved simply by controlling the lighting or turning off of the first light-emitting unit 21 and the second light-emitting unit 22, making the operation simple.

[0098] Based on the same inventive concept, embodiments of the present invention also provide a display device, which includes the display panel described above. The specific structure of the display panel has been described in detail in the above embodiments and will not be repeated here.

[0099] For example, such as Figure 5 and Figure 6 As shown, embodiments of the present invention can use the display panel for in-vehicle displays. Of course, the display device can also be any electronic device with display functionality, such as a mobile phone, tablet computer, laptop computer, e-reader, or television set; embodiments of the present invention do not limit this.

[0100] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that, include: Substrate; A plurality of pixel units located on one side of the substrate, the pixel units being arranged in an array along a first direction and a second direction, the first direction and the second direction intersecting; The pixel unit includes multiple pixel groups; at least one pixel group includes at least one first light-emitting unit and at least one second light-emitting unit arranged along the first direction; the first light-emitting unit and the second light-emitting unit in the same pixel group emit the same light color; The length of the first light-emitting unit in the first direction is L1, and the length of the second light-emitting unit in the first direction is L2, wherein L1 > L2; The length of the first light-emitting unit in the second direction is H1, and the length of the second light-emitting unit in the second direction is H2, where H1 < H2, and... H1 < L1, H2 > L2.

2. The display panel according to claim 1, characterized in that, The display panel has two states of use: a first state and a second state. In both the first and second states, the display panel's display modes include a privacy mode and a sharing mode; In the shared mode of the first state, the first light-emitting unit emits light; In the privacy mode of the first state, the second light-emitting unit emits light; In the shared mode of the second state, the second light-emitting unit emits light; In the privacy mode of the second state, the first light-emitting unit emits light.

3. The display panel according to claim 2, characterized in that, The display panel further includes a pixel driving circuit, which includes a driving transistor, a first light-emitting control module, and a second light-emitting control module. The first light-emitting control module is electrically connected between the driving transistor and the first light-emitting unit, and the second light-emitting module is electrically connected between the driving transistor and the second light-emitting unit. In the shared mode of the first state, the first light-emitting control module is turned on to make the first light-emitting unit emit light; In the privacy mode of the first state, the second light-emitting control module is turned on to make the second light-emitting unit emit light; In the shared mode of the second state, the second light-emitting control module is turned on to make the second light-emitting unit emit light; In the privacy mode of the second state, the first light-emitting control module is turned on to make the first light-emitting unit emit light.

4. The display panel according to claim 2, characterized in that, In the first state, the first direction is parallel to the first reference direction. In the second state, the first direction is parallel to the second reference direction, the first reference direction and the second reference direction intersect, and when the display panel switches between the first state and the second state, neither the first reference direction nor the second reference direction changes.

5. The display panel according to claim 2, characterized in that, In the shared mode of the first state, the second light-emitting unit does not emit light; In the privacy mode of the first state, the first light-emitting unit does not emit light; In the shared mode of the second state, the first light-emitting unit does not emit light; In the privacy mode of the second state, the second light-emitting unit does not emit light.

6. The display panel according to claim 1, characterized in that, It also includes a light-shielding layer located on the side of the pixel unit away from the substrate; The light-shielding layer includes a first light-shielding opening and a second light-shielding opening. Along a direction perpendicular to the plane of the substrate, the first light-shielding opening at least partially overlaps with the first light-emitting unit; the second light-shielding opening at least partially overlaps with the second light-emitting unit; Along the first direction, the shortest distance between the first light-shielding opening and the first light-emitting unit is d1, and the shortest distance between the second light-shielding opening and the second light-emitting unit is d2. Along the second direction, the shortest distance between the first light-shielding opening and the first light-emitting unit is d3, and the shortest distance between the second light-shielding opening and the second light-emitting unit is d4. Wherein, d1, d2, d3, and d4 satisfy at least one of the following relationships: d1>d3, d4>d2, d1>d2, d4>d3.

7. The display panel according to claim 6, characterized in that, d3=d2; and / or, d4=d1.

8. The display panel according to claim 1, characterized in that, It also includes a pixel definition layer located on one side of the substrate, the pixel definition layer including a plurality of pixel openings; The plurality of pixel openings include at least a first pixel opening and a second pixel opening that are spaced apart; Both the first light-emitting unit and the second light-emitting unit include a first electrode, a light-emitting layer, and a second electrode stacked together; The light-emitting layer of the first light-emitting unit is at least partially located within the first pixel opening, and the light-emitting layer of the second light-emitting unit is at least partially located within the second pixel opening; The first electrode of the first light-emitting unit and the first electrode of the second light-emitting unit are insulated from each other.

9. The display panel according to claim 1, characterized in that, The pixel group includes at least two first light-emitting units, which are arranged along the second direction; and the at least two first light-emitting units are located on the same side of the second light-emitting unit in the first direction.

10. The display panel according to claim 9, characterized in that, Among the at least two first light-emitting units arranged along the second direction, the maximum distance between the two first light-emitting units that are furthest apart is H3, where H3 ≤ H2.

11. The display panel according to claim 9, characterized in that, The plurality of pixel groups in the same pixel unit include at least a first pixel group, a second pixel group, and a third pixel group; wherein the first pixel group and the second pixel group are arranged along the second direction; the first pixel group and the third pixel group are at least partially staggered in the first direction; and the second pixel group and the third pixel group are at least partially staggered in the first direction.

12. The display panel according to claim 11, characterized in that, For two adjacent pixel units in the second direction, along the second direction, the first pixel group and the second pixel group of one of them at least partially overlap with the third pixel group of the other.

13. The display panel according to claim 11, characterized in that, For two adjacent pixel units in the first direction, along the first direction, the first pixel group of one of them at least partially overlaps with the first pixel group of the other, the second pixel group of one of them at least partially overlaps with the second pixel group of the other, and the third pixel group of one of them at least partially overlaps with the third pixel group of the other.

14. The display panel according to claim 1, characterized in that, The pixel group includes at least two second light-emitting units, which are arranged along the first direction; and the at least two second light-emitting units are located on the same side of the first light-emitting unit in the first direction.

15. The display panel according to claim 14, characterized in that, The plurality of pixel groups in the same pixel unit include at least a first pixel group, a second pixel group, and a third pixel group arranged along the second direction; wherein, the first light-emitting unit in the first pixel group and the first light-emitting unit in the second pixel group are at least partially misaligned in the second direction; the first light-emitting unit in the second pixel group and the first light-emitting unit in the third pixel group are at least partially misaligned in the second direction.

16. The display panel according to claim 11 or 15, characterized in that, The length of the first light-emitting unit in the first pixel group in the first direction is L11, and the length of the second light-emitting unit in the first direction is L21, wherein L11 > L21; the length of the first light-emitting unit in the second direction is H11, and the length of the second light-emitting unit in the second direction is H21, wherein H11 < H21, and H11 < L11, H21 > L21; The length of the first light-emitting unit in the second pixel group in the first direction is L12, and the length of the second light-emitting unit in the first direction is L22, wherein L12 > L22; the length of the first light-emitting unit in the second direction is H12, and the length of the second light-emitting unit in the second direction is H22, wherein H12 < H22, and H12 < L12, H22 > L22; The length of the first light-emitting unit in the third pixel group in the first direction is L13, and the length of the second light-emitting unit in the first direction is L23, wherein L13 > L23; the length of the first light-emitting unit in the second direction is H13, and the length of the second light-emitting unit in the second direction is H23, wherein H13 < H23, and H13 < L13, H23 > L23; L11≤L12≤L13;L21≤L22≤L23;H11≤H12≤H13;H21≤H22≤H23; 17. The display panel according to claim 16, characterized in that, It also includes a light-shielding layer located on the side of the pixel unit away from the substrate; The light-shielding layer includes a first light-shielding opening and a second light-shielding opening. Along a direction perpendicular to the plane of the substrate, the first light-shielding opening at least partially overlaps with the first light-emitting unit; the second light-shielding opening at least partially overlaps with the second light-emitting unit; Along the first direction, the shortest distance between the first light-shielding opening corresponding to the first pixel group and the first light-emitting unit in the first pixel group is d11; the shortest distance between the second light-shielding opening corresponding to the first pixel group and the second light-emitting unit in the first pixel group is d21; the shortest distance between the first light-shielding opening corresponding to the second pixel group and the first light-emitting unit in the second pixel group is d12; the shortest distance between the second light-shielding opening corresponding to the second pixel group and the second light-emitting unit in the second pixel group is d22; the shortest distance between the first light-shielding opening corresponding to the third pixel group and the first light-emitting unit in the third pixel group is d13; and the shortest distance between the second light-shielding opening corresponding to the third pixel group and the second light-emitting unit in the third pixel group is d23. Along the second direction, the shortest distance between the first light-blocking opening corresponding to the first pixel group and the first light-emitting unit in the first pixel group is d31; the shortest distance between the second light-blocking opening corresponding to the first pixel group and the second light-emitting unit in the first pixel group is d41; the shortest distance between the first light-blocking opening corresponding to the second pixel group and the first light-emitting unit in the second pixel group is d32; the shortest distance between the second light-blocking opening corresponding to the second pixel group and the second light-emitting unit in the second pixel group is d42; the shortest distance between the first light-blocking opening corresponding to the third pixel group and the first light-emitting unit in the third pixel group is d33; and the shortest distance between the second light-blocking opening corresponding to the third pixel group and the second light-emitting unit in the third pixel group is d43. d11≥d12≥d13;d21≥d22≥d23;d31≥d32≥d33;d41≥d42≥d43; 18. The display panel according to claim 1, characterized in that, L1=H2; L2=H1.

19. A method for manufacturing a display panel, characterized in that, include: Provide substrate; Multiple pixel units are formed on one side of the substrate, and the pixel units are arranged in an array along a first direction and a second direction, wherein the first direction and the second direction intersect. The pixel unit includes multiple pixel groups; the pixel group includes a first light-emitting unit and a second light-emitting unit arranged along the first direction; The length of the first light-emitting unit in the first direction is L1, and the length of the second light-emitting unit in the first direction is L2, wherein L1 > L2; The length of the first light-emitting unit in the second direction is H1, and the length of the second light-emitting unit in the second direction is H2, where H1 < H2, and... H1 < L1, H2 > L2; The light-emitting layers of the first light-emitting unit and the second light-emitting unit are prepared through the same opening in the mask.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-19.

Images