Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, which are used for enabling the display panel to support multiple display modes and improving the peep-proof effect of the display panel. In the display panel, a first insulating layer comprises a plurality of first openings, the included angle between the side face of each first opening and the plane where a substrate is located and facing the side away from the first opening is alpha, and alpha is an acute angle; the plurality of second light-emitting units at least partially surround the first light-emitting unit; the first light-emitting unit and the plurality of second light-emitting units are located in the same first opening; in the direction perpendicular to the plane where the substrate is located, the first light-emitting unit and the side face of the first opening are at least partially not overlapped, and the second light-emitting unit and the side face of the first opening are at least partially overlapped; at least part of the driving layer is located on the side, away from the substrate, of the first insulating layer; the driving layer comprises a pixel driving circuit, and the pixel driving circuit is electrically connected with the first light-emitting unit and / or the second light-emitting unit.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of display technology, consumers' requirements for display screens are constantly improving. At present, various types of displays including liquid crystal display screens and organic light emitting display screens are emerging in an endless stream and are developing rapidly. On this basis, 3D display, touch display technology, curved display, ultra-high resolution display and anti-peep display and other display technologies are constantly emerging.

[0003] At present, the performance improvement of anti-peep display screens using active light-emitting display panels including organic light emitting elements (Organic Light Emitting Diode, OLED) has attracted great attention from researchers. SUMMARY

[0004] Therefore, the embodiments of the present application provide a display panel and a display device to enable the display panel to support multiple display modes and improve the anti-peep effect of the display panel.

[0005] In a first aspect, the embodiments of the present application provide a display panel, comprising: a substrate; a first insulating layer located on one side of the substrate, the first insulating layer comprising a plurality of first openings, an included angle between a side of the first opening and a plane in which the substrate is located and a side away from the first opening being α, and α being an acute angle; a first light-emitting unit and a plurality of second light-emitting units, the plurality of second light-emitting units at least partially surrounding the first light-emitting unit, and the first light-emitting unit and the plurality of second light-emitting units being located in the same first opening, in a direction perpendicular to the plane in which the substrate is located, the first light-emitting unit and the side of the first opening at least partially not overlapping, and the second light-emitting unit and the side of the first opening at least partially overlapping; a driving layer, at least part of the driving layer being located on a side of the first insulating layer away from the substrate, the driving layer comprising a pixel driving circuit, the pixel driving circuit being electrically connected to the first light-emitting unit and / or the second light-emitting unit.

[0006] In a second aspect, the embodiments of the present application provide a display device comprising the above-mentioned display panel.

[0007] The display panel and the display device provided by the embodiment of the present application can make the first light-emitting unit and the second light-emitting unit emit light or not according to different display requirements, so that the visible viewing angle and the invisible viewing angle of the display panel can change according to the change of the light-emitting state of the first light-emitting unit or the second light-emitting unit, so that the display panel can support various display modes with different visible viewing angles or invisible viewing angles, such as sharing mode and anti-peeping mode, and the application scenarios of the display panel can be enriched.

[0008] Moreover, the embodiment of the present application only needs to adjust the light-emitting state of the first light-emitting unit or the second light-emitting unit to make the display panel work in the anti-peeping mode with a partial viewing angle invisible, without the need to set an anti-peeping film, which is beneficial to simplify the structure of the display panel.

[0009] In addition, the embodiment of the present application sets at least part of the second light-emitting unit on the side of the first opening, that is, in the direction away from the first light-emitting unit, so that the second light-emitting unit is inclined to the side away from the substrate, compared with the parallel setting of the second light-emitting unit relative to the substrate, not only can the light-emitting direction of the second light-emitting unit be different from that of the first light-emitting unit, but also can increase the area of the second light-emitting unit when the area of the orthographic projection of the second light-emitting unit on the plane of the substrate is constant, and can increase the light-emitting intensity of the second light-emitting unit when the second light-emitting unit emits light, thereby improving the display effect of the display panel in different display modes.

[0010] Moreover, the embodiment of the present application sets at least part of the driving layer on the side of the first insulating layer away from the substrate, compared with setting the driving layer on the side of the first insulating layer close to the substrate, can reduce the distance between the pixel driving circuit and the first light-emitting unit and the second light-emitting unit, and is beneficial to the electrical connection between the pixel driving circuit and the first light-emitting unit or the second light-emitting unit. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 A schematic diagram of a display panel provided by the embodiment of the present application; Figure 2 A three-dimensional schematic diagram of a sub-pixel including a first light-emitting unit and a second light-emitting unit provided by the embodiment of the present application; Figure 3A cross-sectional schematic view of a display panel provided by an embodiment of the present application in a region where a sub-pixel is located; Figure 4 A light path schematic view of a display panel provided by an embodiment of the present application in a sharing mode; Figure 5 A light path schematic view of a display panel provided by an embodiment of the present application in a first privacy mode; Figure 6 A light path schematic view of a display panel provided by an embodiment of the present application in a second privacy mode; Figure 7 A position schematic view of a display panel provided by an embodiment of the present application and a user in different positions of the display panel; Figure 8 A top view schematic view of a first electrode of a plurality of sub-pixels provided by an embodiment of the present application; Figure 9 An equivalent circuit schematic view of a sub-pixel provided by an embodiment of the present application; Figure 10 A working timing schematic view of a pixel driving circuit shown in FIG. 1; Figure 9 Another working timing schematic view of a pixel driving circuit shown in FIG. 1 in a first privacy mode; Figure 11 Figure 9 A working timing schematic view of a pixel driving circuit shown in FIG. 2; Figure 12 Another equivalent circuit schematic view of a sub-pixel provided by an embodiment of the present application; Figure 13 A working timing schematic view of a pixel driving circuit shown in FIG. 3; Figure 12 Another working timing schematic view of a pixel driving circuit shown in FIG. 3 in a second privacy mode; Figure 14 Figure 12 A cross-sectional schematic view of a display panel provided by another embodiment of the present application; Figure 15 A structure schematic view of a display device provided by an embodiment of the present application. Figure 16 DETAILED DESCRIPTION

[0013] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0014] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. ​​​

[0015] 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.

[0016] 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.

[0017] This invention provides a display panel, such as... Figure 1 As shown, Figure 1 This is a schematic diagram of a display panel provided in an embodiment of the present invention. The display panel includes a substrate 1 and a plurality of pixel units P located on one side of the substrate 1. For example, a pixel unit P includes a plurality of sub-pixels SP, and the sub-pixels SP in the same pixel unit P emit different light colors. For instance, the plurality of sub-pixels SP in the pixel unit P may include a first sub-pixel SP1, a second sub-pixel SP2, and a third sub-pixel SP3, wherein the first sub-pixel SP1, the second sub-pixel SP2, and the third sub-pixel SP3 may emit red light, green light, and blue light, respectively.

[0018] For example, in an embodiment of the present invention, the light-emitting unit in at least one sub-pixel SP includes a first light-emitting unit 11 and a second light-emitting unit 12. Figure 2 and Figure 3 As shown, Figure 2 A three-dimensional schematic diagram of a sub-pixel SP including a first light-emitting unit 11 and a second light-emitting unit 12 is provided for an embodiment of the present invention. Figure 3 This is a cross-sectional schematic diagram of a display panel in the area where a sub-pixel is located, provided as an embodiment of the present invention. The first light-emitting unit 11 and the second light-emitting unit 12 in the same sub-pixel SP are arranged adjacent to each other. The adjacent arrangement of the first light-emitting unit 11 and the second light-emitting unit 12 means that no other light-emitting units are present between the first light-emitting unit 11 and the second light-emitting unit 12.

[0019] Optional, such as Figure 3 As shown, the display panel also includes a first insulating layer 21 located on one side of the substrate 1. The first insulating layer 21 includes a plurality of first openings 210. The angle between the side surface S1 of the first opening 210 and the plane of the substrate 1 facing away from the first opening 210 is α, where α is an acute angle. Optionally, α ≤ 75°.

[0020] For example, such as Figure 3As shown, the first light emitting unit 11 and the second light emitting unit 12 belonging to the same sub-pixel SP are located in the same first opening 210; in the direction h1 perpendicular to the plane where the substrate 1 is located, the first light emitting unit 11 and the side surface S1 of the first opening 210 are at least partially non-overlapping, and the second light emitting unit 12 and the side surface S1 of the first opening 210 are at least partially overlapping. Based on this arrangement, the first light emitting unit 11 and the second light emitting unit 12 can emit light in different directions.

[0021] For example, as shown in FIG. 1, the first light emitting unit 11 and the second light emitting unit 12 each include a first electrode 101, a light emitting layer 100, and a second electrode (not shown) arranged in a stack. Figure 3 As shown, the first light emitting unit 11 and the second light emitting unit 12 each include a first electrode 101, a light emitting layer 100, and a second electrode (not shown) arranged in a stack. Figure 3 Optionally, one of the first electrode 101 and the second electrode is an anode, and the other is a cathode. For example, the first electrode 101 can be electrically connected to a pixel driving circuit (not shown). Figure 3 When the display panel is in operation, under the pressure difference between the first electrode 101 and the second electrode, the light emitting layer 100 can emit light of a predetermined color.

[0022] For example, the light emitting layer 100 includes any one of an organic light emitting material, a quantum dot light emitting material, and an inorganic light emitting material, and the embodiments of the present application do not make specific limitations on the material of the light emitting layer 100.

[0023] It should be noted that, in the direction perpendicular to the plane where the substrate 1 is located, the first light emitting unit 11 and the side surface S1 of the first opening 210 are at least partially non-overlapping, which means that the first electrode 101 and the light emitting layer 100 of the first light emitting unit 11 are at least partially non-overlapping with the side surface S1 of the first opening 210. The second light emitting unit 12 and the side surface S1 of the first opening 210 are at least partially overlapping, which means that the first electrode 101 and the light emitting layer 100 of the second light emitting unit 12 are at least partially non-overlapping with the side surface S1 of the first opening 210.

[0024] The light emitting direction of the light emitting unit includes multiple directions, and the first light emitting unit 11 and the second light emitting unit 12 emit light in different directions, which means that the directions with the maximum light emitting intensity of the first light emitting unit 11 and the second light emitting unit 12 are different.

[0025] For example, the first electrode 101 of the first light emitting unit 11 and the second light emitting unit 12 can be arranged in different planes, and the angle between the plane and the substrate 1 is different, so that the directions with the maximum light emitting intensity of the first light emitting unit 11 and the second light emitting unit 12 are different.

[0026] Optionally, as shown in FIG. 1, Figure 3As shown, at least part of the first electrode 101 of the first light emitting unit 11 is parallel to the plane where the substrate 1 is located. At least part of the first electrode 101 of the second light emitting unit 12 is parallel to the side surface S1 of the first opening 210, that is, the included angle between at least part of the first electrode 101 of the second light emitting unit 12 and the plane where the substrate 1 is located is also the above-mentioned α.

[0027] For example, as shown in FIG. 1, the display panel further includes a first light emitting unit 11 and a second light emitting unit 12. Figure 3 As shown, the display panel further includes a driving layer 3, at least part of the driving layer 3 is located on the side of the first insulating layer 21 away from the substrate 1; the driving layer 3 includes a pixel driving circuit (not shown) for driving the light emitting unit 10 to emit light. Figure 3

[0028] For example, the pixel driving circuit is electrically connected with at least one of the first light emitting unit 11 and the second light emitting unit 12.

[0029] When driving the sub-pixel SP to emit light, the embodiment of the present application can drive the first light emitting unit 11 and the second light emitting unit 12 separately, or also can make the same pixel driving circuit control both, the driving process of the first light emitting unit 11 and the second light emitting unit 12 will be described below, which will not be described here.

[0030] When the display panel is working, the first light emitting unit 11 and the second light emitting unit 12 can be respectively controlled by the pixel driving circuit to emit light in different scenes, so that the display panel supports multiple display modes and meets the display requirements of the display panel in different display modes.

[0031] For example, the display mode of the display panel can include a sharing mode, in which the display panel can be clearly seen by users in the normal viewing angle and the large viewing angle. The viewing angle refers to the included angle between the line of sight direction of the user and the normal line of the substrate 1. In the normal viewing angle, the included angle between the line of sight direction of the user and the normal line of the substrate 1 is small, such as 0°, and in the large viewing angle, the included angle between the line of sight direction of the user and the normal line of the substrate 1 is large, such as greater than 30°, or 45°, or 60°.

[0032] For example, the sharing mode can be used in the scene of using a display device including a display panel such as a notebook computer or a television in a family or an office meeting, in which the display panel can be worked in the sharing mode to have a large viewing angle for multiple people to watch the display image.

[0033] For example, as shown in FIG. 1, Figure 3 Figure 4 A light path schematic diagram of a display panel provided by the embodiment of the present application in the sharing mode M1, the embodiment of the present application can control the first light emitting unit 11 to emit light and the second light emitting unit 12 not to emit light.​​

[0034] In this scenario, for the first user Y1 positioned at the direct viewing angle of the display panel, they can receive the small-angle light L11 emitted by the first light-emitting unit 11, thereby viewing the displayed image on the display panel. Here, the small-angle light L11 refers to light emitted by the first light-emitting unit 11 at a small angle to the normal direction of the substrate 1. For example, light with an angle less than 60°, 45°, or 30° between its propagation direction and the normal direction of the substrate 1 can be considered small-angle light.

[0035] For the second user Y2, located at a wide viewing angle of the display panel, it can receive the large-angle light L12 emitted by the first light-emitting unit 11. Here, large-angle light refers to light emitted by the first light-emitting unit 11 at a large angle to the normal direction of the substrate 1. For example, light with an angle greater than 60°, 45°, or 30° between its propagation direction and the normal direction of the substrate 1 can be considered large-angle light.

[0036] For example, such as Figure 4 As shown, the second light-emitting unit 12 does not emit light in the shared mode M1. The wide-angle light emitted by the first light-emitting unit 11 will not be interfered with by the light emitted by the second light-emitting unit 12. Therefore, the second user Y2 located at a wide viewing angle of the display panel can only receive the light emitted by the first light-emitting unit 11 and will not receive the light emitted by the second light-emitting unit 12. That is, the light emitted by the first light-emitting unit 11 will not be interfered with by the light emitted by the second light-emitting unit 12, which can ensure the display effect at a wide viewing angle.

[0037] For example, the display panel's display mode may also include a privacy mode. In privacy mode, only users located at a specific viewing angle of the display panel can clearly see the display screen, while users at other viewing angles cannot see the display screen. In this embodiment of the invention, the viewing angle that allows users to clearly see the display screen is called the visible viewing angle. The viewing angle that prevents users from clearly seeing the display screen is called the invisible viewing angle. The privacy mode setting can meet users' needs for the security and privacy of the display screen.

[0038] In privacy mode, embodiments of the present invention can prevent the first light-emitting unit 11 or the second light-emitting unit 12 from emitting light.

[0039] For example, depending on the different requirements for the viewing angle of the display panel, embodiments of the present invention can set the privacy mode to include at least a first privacy mode and a second privacy mode. In the first privacy mode, the visible viewing angle includes a normal viewing angle, and the invisible viewing angle includes a wide viewing angle. In the second privacy mode, the visible viewing angle includes a wide viewing angle, and the invisible viewing angle includes a normal viewing angle.

[0040] That is, in the first privacy protection mode, a user at the normal viewing angle of the display panel can see the display screen, and a user at the large viewing angle of the display panel cannot see the display screen. In the second privacy protection mode, a user at the large viewing angle of the display panel can see the display screen, and a user at the normal viewing angle of the display panel cannot see the display screen.

[0041] For example, as shown in FIG. 1, a display panel 1 provided by an embodiment of the present application includes a substrate 1, a first light-emitting unit 11 and a second light-emitting unit 12. Figure 4 Figure 5 A light path schematic diagram of the display panel in the first privacy protection mode M21 is shown in FIG. 2. In the first privacy protection mode M21, the first light-emitting unit 11 and the second light-emitting unit 12 both emit light. For a first user Y1 at the normal viewing angle, the small-angle light rays L11 emitted by the first light-emitting unit 11 can enter the field of view of the first user Y1, so that the first user Y1 at the normal viewing angle can see the display screen of the display panel.

[0042] For a second user Y2 at the large viewing angle, the second light-emitting unit 12 emits light toward the second user Y2, and the emitted light rays can interfere with the large-angle light rays L12 of the first light-emitting unit 11, so that the second user Y2 cannot see the display screen, achieving large-viewing-angle privacy protection.

[0043] For example, the first privacy protection mode can be used in scenarios such as using a mobile phone or a notebook computer in a public place. In such scenarios, the display panel can be caused to work in the first privacy protection mode M21, so that the display panel has a small viewing angle to protect the privacy of a user at the normal viewing angle of the display panel.

[0044] In the second privacy protection mode M22, for example, as shown in FIG. 3, the first light-emitting unit 11 does not emit light, and the second light-emitting unit 12 emits light. Figure 5 Figure 6 A light path schematic diagram of the display panel in the second privacy protection mode M22 is shown in FIG. 3. In the second privacy protection mode M22, the first light-emitting unit 11 does not emit light, and the second light-emitting unit 12 emits light.

[0045] For the first user Y1 at the normal viewing angle, since the first light-emitting unit 11 does not emit light, and the second light-emitting unit 12 is arranged obliquely relative to the plane in which the substrate 1 is located, the first user Y1 at the normal viewing angle cannot see the display screen of the display panel, achieving normal-viewing-angle privacy protection.

[0046] For the second user Y2 at the large viewing angle, the second light-emitting unit 12 emits light toward the second user Y2, and the emitted light rays can enter the field of view of the second user Y2, so that the second user Y2 can see the display screen.

[0047] ​​For example, the second privacy mode M22 can be used in a vehicle, for example, a screen including the display panel can be installed between the driver and the front passenger, and the display panel can be controlled to work in the second privacy mode, so that only the front passenger on one side of the display panel can see the display screen, and the driver and the person in the normal viewing angle cannot see the display screen, which is beneficial to improve the driving safety.

[0048] In the embodiments of the present application, the large viewing angle can include a large viewing angle in one or more different directions of the display panel according to the relative position relationship between the user and the display panel. Figure 6 Figure 7 A display panel and a position diagram of a user in different directions of the display panel are provided in the embodiments of the present application. The directions include a first direction F1, a second direction F2, a third direction F3 and a fourth direction F4. The second user Y2 in the first direction F1 and the second direction F2 of the display panel 1000 can be located on both sides of the display panel 1000 in the first direction h21, and the second user Y2 in the third direction F3 and the fourth direction F4 of the display panel 1000 can be located on both sides of the display panel 1000 in the second direction h22. The first direction h21 and the second direction h22 intersect. For example, the first direction F1 and the second direction F2 can correspond to the right direction and the left direction of the display panel 1000 respectively. The third direction F3 and the fourth direction F4 can correspond to the upper direction and the lower direction of the display panel 1000 respectively.

[0049] In the embodiments of the present application, the number of the second light emitting units 12 and the position of the second light emitting units 12 relative to the first light emitting unit 11 can be set according to the demand for the invisible viewing angle of the display panel in the privacy mode. For example, when only the user in a certain direction of the display panel needs to be unable to see the display screen of the display panel, only one second light emitting unit 12 in the sub-pixel SP can be arranged to emit light towards the direction. That is, the second light emitting unit 12 can be located on the opposite side of the first light emitting unit 11 in the direction.

[0050] For example, when the user on the right side of the display panel needs to be unable to see the display screen, only one second light emitting unit 12 on the left side of the first light emitting unit 11 can be arranged in the sub-pixel SP, and the second light emitting unit 12 emits light towards the right side of the display panel. In the first privacy mode M21, the second light emitting unit 12 and the first light emitting unit 11 can be controlled to emit light. Based on the arrangement, only the user on the right side of the display panel can be unable to see the display screen, and the users on the left side, the upper side and the lower side of the display panel can receive the large-angle light emitted by the first light emitting unit 11, so that they can see the display screen. ​

[0051] In addition, based on the setting mode, the display panel can also be made to work in a second privacy mode M22 in which only the second light emitting units 12 are made to emit light and the first light emitting units 11 are not made to emit light, so that a user located at the right side of the display panel can clearly see the display screen, a user located at the front of the display panel, i.e., at the normal viewing angle of the display panel, cannot clearly see the display screen, and a user located at the left side, the upper side and the lower side of the display panel cannot clearly see the display screen.

[0052] In another alternative embodiment, the display panel can also be provided with a plurality of second light emitting units 12 in each sub-pixel SP, and the plurality of second light emitting units 12 at least partially surround the first light emitting unit 11 in the same sub-pixel SP.

[0053] For example, as shown in FIG. 1, for at least one sub-pixel SP, the display panel can be provided with a plurality of second light emitting units 12 including a first sub-light emitting unit 121, a second sub-light emitting unit 122, a third sub-light emitting unit 123 and a fourth sub-light emitting unit 124. Figure 7 The first sub-light emitting unit 121 and the second sub-light emitting unit 122 are located on both sides of the first light emitting unit 11 in a first direction h21, and the third sub-light emitting unit 123 and the fourth sub-light emitting unit 124 are located on both sides of the first light emitting unit 11 in a second direction h22.

[0054] As shown in FIG. 1 and FIG. 2, the first sub-light emitting unit 121 is located on the left side of the first light emitting unit 11 in the first direction h21, and the second sub-light emitting unit 122 is located on the right side of the first light emitting unit 11 in the first direction h21. Figure 2 The third sub-light emitting unit 123 is located on the left side of the first light emitting unit 11 in the second direction h22, and the fourth sub-light emitting unit 124 is located on the right side of the first light emitting unit 11 in the second direction h22. Figure 4 The first sub-light emitting unit 121 emits light towards a first orientation F1 of the display panel, the second sub-light emitting unit 122 emits light towards a second orientation F2 of the display panel, the third sub-light emitting unit 123 emits light towards a third orientation F3 of the display panel, and the fourth sub-light emitting unit 124 emits light towards a fourth orientation F4 of the display panel.

[0055] For example, as shown in FIG. 1, the display panel further includes a scan line 31 and a data line 32 electrically connected to the sub-pixel SP, the scan line 31 is used to control the conduction or turn-off of part of the transistors in the pixel driving circuit, and the data line 32 is used to provide a data voltage to the pixel driving circuit. Figure 7 The pixel driving circuit can generate a driving current corresponding to the data voltage to drive the first light emitting unit 11 or the second light emitting unit 12 to emit light at a corresponding brightness.

[0056] Optionally, one of the first direction h21 and the second direction h22 can be parallel to the extension direction of the scan line 31, and the other can be parallel to the extension direction of the data line 32. Figure 1 For example, the first direction h21 is parallel to the extension direction of the scan line 31, and the second direction h22 is parallel to the extension direction of the data line 32.

[0057] In the same sub-pixel SP, four second light emitting units 12 are arranged, and the four second light emitting units 12 are arranged around the first light emitting unit 11, that is, the four second light emitting units 12 are respectively arranged on the upper, lower, left and right sides of the first light emitting unit 11. The four second light emitting units 12 can emit light towards different directions of the display panel. By controlling the second light emitting unit 12 at a specific position to emit light or not to emit light, a user at the light emitting side of the second light emitting unit 12 can see or cannot see the display screen, thereby enriching the display mode of the display panel.

[0058] When the four second light emitting units 12 are arranged in the same sub-pixel SP, in the sharing mode M1, the four second light emitting units 12 can be controlled to not emit light.

[0059] In the first privacy mode M21, the four second light emitting units 12 can be controlled to emit light. In this case, for a user at the upper, lower, left and right directions of the display panel, the user can not only receive the large-angle light L12 emitted by the first light emitting unit 11, but also receive the light emitted by the second light emitting unit 12 towards the corresponding direction. The light emitted by the second light emitting unit 12 will interfere with the light emitted by the first light emitting unit 11, so that a user at the upper, lower, left and right directions of the display panel cannot see the display screen at a large viewing angle, that is, the upper, lower, left and right directions of the display panel all have a privacy effect.

[0060] In the second privacy mode M22, the four second light emitting units 12 can be controlled to emit light, so that a user at the upper, lower, left and right directions of the display panel can see the display screen at a large viewing angle.

[0061] Figure 1 、 Figure 4 and Figure 5 Only the first sub-light emitting unit 121 and the second sub-light emitting unit 122 of the four second light emitting units 12 are taken as an example.

[0062] Of course, when the four second light emitting units 12 are arranged in the same sub-pixel SP, different second light emitting units 12 can be controlled to work in different states according to different visible / invisible viewing angles, for example, some second light emitting units 12 emit light, and some second light emitting units 12 do not emit light.

[0063] For example, in the first privacy mode including a display mode in which a user located at the normal viewing angle of the display panel can see the display screen, a user located at the right side of the display panel cannot see the display screen, and a user located at the left side, the upper side and the lower side of the display panel can see the display screen, the embodiment of the present application can control the first light emitting unit 11 and the second light emitting unit 12 (located at the left side of the first light emitting unit 11) emitting light towards the right side of the display panel to emit light, and the second light emitting unit 12 (located at the right side, the lower side and the upper side of the first light emitting unit 11 respectively) emitting light towards the left side, the upper side and the lower side of the display panel not to emit light.

[0064] For example, one sub-pixel SP can include only one first light emitting unit 11, or can also include a plurality of first light emitting units 11, and the embodiment of the present application does not limit the number of first light emitting units 11 as long as the first electrode 101 of the first light emitting unit 11 is parallel to the direction of the plane where the substrate 1 is located.

[0065] The display panel provided by the embodiment of the present application can make the first light emitting unit 11 and the second light emitting unit 12 emit light or not emit light according to different display requirements by setting the first light emitting unit 11 and the second light emitting unit 12 with different light emitting directions in at least one sub-pixel SP of the display panel, and can change the visible viewing angle and the invisible viewing angle of the display panel according to the change of the light emitting state of the first light emitting unit 11 or the second light emitting unit 12, so that the display panel supports a plurality of display modes with different visible viewing angles or invisible viewing angles such as sharing mode and privacy mode, and can enrich the application scenarios of the display panel.

[0066] Moreover, the embodiment of the present application only needs to adjust the light emitting state of the first light emitting unit 11 or the second light emitting unit 12 to make the display panel work in the privacy mode with part of the viewing angle invisible, without the need to set a privacy film, which is beneficial to simplify the structure of the display panel.

[0067] In addition, the embodiment of the present application sets at least part of the second light emitting unit 12 on the side surface S1 of the first opening 210, i.e. in the direction away from the first light emitting unit 11, and inclines the second light emitting unit 12 to the side away from the substrate 1, which not only makes the light emitting direction of the second light emitting unit 12 different from the light emitting direction of the first light emitting unit 11, but also can increase the area of the second light emitting unit 12 when the area of the orthogonal projection of the second light emitting unit 12 on the plane where the substrate 1 is located is constant, and can increase the light emitting intensity of the second light emitting unit 12 when the second light emitting unit 12 emits light, thereby improving the display effect of the display panel in different display modes.

[0068] For example, when the display panel is working in the first privacy mode in which the display panel is visible in the normal viewing angle and invisible in the large viewing angle, the light intensity of the second light emitting unit 12 is enhanced, the interference of the light of the first light emitting unit 11 by the second light emitting unit 12 is enhanced, and the privacy effect of the display panel in the large viewing angle is improved.

[0069] When the display panel is working in the second privacy mode in which the display panel is visible in the large viewing angle and invisible in the normal viewing angle, the light intensity in the large viewing angle is increased by enhancing the light intensity of the second light emitting unit 12, and the display effect in the large viewing angle is improved.

[0070] Furthermore, compared with the case that the driving layer 3 is arranged on the side of the first insulating layer 21 close to the substrate 1, the distance between the pixel driving circuit and the first light emitting unit 11 and the second light emitting unit 12 is reduced by arranging at least part of the driving layer 3 on the side of the first insulating layer 21 away from the substrate 1, and the electrical connection between the pixel driving circuit and the first light emitting unit 11 or the second light emitting unit 12 is facilitated.

[0071] For example, one pixel driving circuit can be electrically connected to the first light emitting unit 11 and the second light emitting unit 12 respectively to simplify the circuit structure. Alternatively, the first light emitting unit 11 and the second light emitting unit 12 can be electrically connected by two pixel driving circuits controlled independently. In this case, the two pixel driving circuits can be arranged above the first insulating layer 21.

[0072] For example, as shown in FIG. 1 and FIG. 2, Figure 6 and Figure 3 as shown in FIG. 1 and FIG. 2, Figure 8 a top view of a first electrode 101 of a plurality of sub-pixels is provided, the first light emitting unit 11 and the second light emitting unit 12 both include the first electrode 101, and the first electrode 101 of the first light emitting unit 11 and the first electrode 101 of the second light emitting unit 12 are insulated from each other. For example, the first electrode 101 of the first light emitting unit 11 and the first electrode 101 of the second light emitting unit 12 can be arranged separately. With this arrangement, the first light emitting unit 11 and the second light emitting unit 12 can be controlled independently.

[0073] For example, when the sub-pixel SP is arranged to include a plurality of second light emitting units 12, as shown in FIG. 1 and FIG. 2, Figure 8As shown, taking a plurality of second light-emitting units 12 including a first sub-light-emitting unit 121, a second sub-light-emitting unit 122, a third sub-light-emitting unit 123 and a fourth sub-light-emitting unit 124 as an example, in this embodiment of the invention, the first electrode 101 of the first light-emitting unit 11 can be made mutually insulated from the first electrode 101 of the first sub-light-emitting unit 121, the first electrode 101 of the second sub-light-emitting unit 122, the first electrode 101 of the third sub-light-emitting unit 123 and the first electrode 101 of the fourth sub-light-emitting unit 124.

[0074] Furthermore, in the first sub-light-emitting unit 121, the second sub-light-emitting unit 122, the third sub-light-emitting unit 123, and the fourth sub-light-emitting unit 124, the first electrodes 101 of any two adjacent units are insulated from each other. For example, the first electrodes 101 of any two adjacent units can be spaced apart to allow for independent control of different second light-emitting units 12. When the display panel is operating, the corresponding second light-emitting unit 12 can be controlled to emit light or not emit light according to different display requirements.

[0075] For example, such as Figure 8 As shown, the display panel also includes a partition 41, which is located between the first light-emitting unit 11 and the second light-emitting unit 12 of the same sub-pixel SP. The light-emitting layer 100 of the first light-emitting unit 11 and the light-emitting layer 100 of the second light-emitting unit 12 are separated at the partition 41.

[0076] like Figure 3 As shown, the partition portion 41 is located between the light-emitting layer 100 of the first light-emitting unit 11 and the light-emitting layer 100 of the second light-emitting unit 12. The included angle between the side surface S2 and the bottom surface of the partition portion 41 is an obtuse angle. Figure 3 The cross-sectional shape of the partition portion 41 in the direction perpendicular to the plane of the substrate 1 is shown as an inverted trapezoid.

[0077] In this embodiment of the invention, the partition portion 41 can be prepared by steps such as film formation, exposure, and development. Film formation refers to forming a partition material layer covering the underlying substrate. Exposure refers to exposing the partition material layer to light through a photomask. Development refers to removing a portion of the structure from the partition material layer to form the partition portion 41 with the desired morphology.

[0078] Optionally, the barrier material layer includes a negative photoresist material. The negative photoresist material cures after exposure; the cured portion can be retained after development, while the unexposed portion can be removed after development.

[0079] For the partition material layer, at a certain exposure intensity, the surface layer close to the light source receives a larger amount of exposure, and the lower layer far from the light source receives a smaller amount of exposure. Therefore, after exposure, the curing degree of the partition material layer at different positions in the thickness direction is different. Specifically, the surface layer has a larger curing degree, and the lower layer has a weaker curing degree. Therefore, after development, more of the partition material layer is retained on the side away from the substrate 1, and less of the partition material layer is retained on the side close to the substrate 1, so that the partition portion 41 having an obtuse included angle between the side surface S2 and the bottom surface can be formed.

[0080] For example, the partition portion 41 can be formed after the first electrode 101. The partition portion 41 can be located between the first electrode 101 of the first light emitting unit 11 and the first electrode 101 of the second light emitting unit 12.

[0081] Optionally, in the direction perpendicular to the plane where the substrate 1 is located, the height of the partition portion 41 can be greater than the thickness of the first electrode 101.

[0082] The light emitting layer 100 is prepared after the formation of the partition portion 41, and the light emitting layer 100 includes the light emitting layer 100 of the first light emitting unit 11 and the light emitting layer 100 of the second light emitting unit 12. For example, the materials of the light emitting layer 100 of the first light emitting unit 11 and the light emitting layer 100 of the second light emitting unit 12 can be the same, and the two can be formed in the same process through the same opening of the mask plate. Based on the topographic characteristics of the partition portion 41, the light emitting material layer formed through the same opening of the mask plate can be naturally disconnected at the partition portion 41, so that the first light emitting unit 11 and the second light emitting unit 12 can be independently arranged.

[0083] For example, as shown in Figure 3 The display panel further includes a pixel definition layer 42, which is located on the side of the first insulating layer 21 away from the substrate 1, and the pixel definition layer 42 includes a plurality of second openings 420. In the direction h1 perpendicular to the plane where the substrate 1 is located, the second openings 420 and the first openings 210 at least partially overlap; the first light emitting unit 11 and the second light emitting unit 12 in the same sub-pixel SP are located in the same second opening 420. The first light emitting units 11 of different sub-pixels are located in different second openings 420, and the second light emitting units 12 of different sub-pixels SP are located in different second openings 420. That is, the second openings 420 serve to define the light emitting areas of the sub-pixels SP of different light emitting colors.

[0084] Optionally, as shown in Figure 3 The included angle between the side surface S3 of the second opening 420 and the plane where the substrate 1 is located, which is directed away from the second opening 420, is β, and β is an acute angle.

[0085] For example, as shown inFigure 3 As shown, the second opening 420 can cover the orthographic projection of the first opening 210 on the plane where the substrate 1 is located. With this arrangement, the non-opening part of the pixel definition layer 42 can be prevented from falling into the first opening 210 and occupying the space of the second light emitting unit 12, which is conducive to reducing the manufacturing difficulty of the second light emitting unit 12 and ensuring the area of the second light emitting unit 12.

[0086] For example, the pixel definition layer 42 and the partition 41 can be made of the same material, or the materials of the pixel definition layer 42 and the partition 41 can be different.

[0087] For example, the partition 41 and the pixel definition layer 42 can include a light shielding material. The light shielding material can absorb the incident light from the outside and the reflected light reflected by the inside of the display panel, thereby reducing the reflectivity of the display panel.

[0088] Optionally, the pixel definition layer 42 and the partition 41 can be formed in different processes, or the pixel definition layer 42 and the partition 41 can be formed in the same process.

[0089] For example, when the pixel definition layer 42 and the partition 41 are prepared, the above-mentioned partition material layer can be exposed by a half-tone mask, wherein the half-tone mask includes a first light transmission area, a second light transmission area and a non-light transmission area, and the light transmission rate of the first light transmission area is greater than that of the second light transmission area.

[0090] Part of the first light transmission area with a relatively large light transmission rate can correspond to the area where the pixel definition layer 42 is located, and another part of the first light transmission area can correspond to the area where the bottom surface of the partition 41 is located. The second light transmission area with a relatively small light transmission rate can correspond to the area where the side surface of the partition 41 is located. Part of the non-light transmission area can correspond to the area between the pixel definition layer 42 and the partition 41, and the light emitting layer 100 of the second light emitting unit 12 can be formed in this area subsequently. Another part of the non-light transmission area can correspond to the area where the first light emitting unit 11 is located, and the light emitting layer 100 of the first light emitting unit 11 can be formed in this area subsequently.

[0091] For example, as shown in FIG. 4, the pixel definition layer 42 and the partition 41 can be formed in the same process. Figure 3 As shown in FIG. 5, the pixel definition layer 42 and the partition 41 can be formed in different processes. Figure 9 An equivalent circuit schematic diagram of a sub-pixel SP provided by the embodiment of the present application is shown in FIG. 6. The pixel driving circuit 20 includes a driving transistor M0, a first light emitting control module 201 and a second light emitting control module 202.

[0092] The first light-emitting control module 201, the driving transistor M0 and the first light-emitting unit 11 are electrically connected between the first power voltage terminal PVDD and the second power voltage terminal PVEE. The driving transistor M0 is configured to generate a driving current. The first light-emitting control module 201 can control the first light-emitting unit 11 to emit light or not to emit light under the action of the first light-emitting control signal line E1.

[0093] Specifically, when the first light-emitting control signal line E1 controls the first light-emitting control module 201 to be turned on, the driving current generated by the driving transistor M0 can flow through the first light-emitting unit 11, so that the first light-emitting unit 11 emits light. When the first light-emitting control signal line E1 controls the first light-emitting control module 201 to be turned off, the driving current generated by the driving transistor M0 cannot flow through the first light-emitting unit 11, so that the first light-emitting unit 11 does not emit light.

[0094] As shown in Figure 9 The second light-emitting control module 202 and the second light-emitting unit 12 are electrically connected between the first power voltage terminal PVDD and the second power voltage terminal PVEE. The second light-emitting control module 202 can control the second light-emitting unit 12 to emit light or not to emit light under the action of the second light-emitting control signal line E2.

[0095] Specifically, when the second light-emitting control signal line E2 controls the second light-emitting control module 202 to be turned on, the first electrode 101 of the second light-emitting unit 12 can receive the voltage of the first power voltage terminal PVDD, so as to emit light. When the second light-emitting control signal line E2 controls the second light-emitting control module 202 to be turned off, the first electrode 101 of the second light-emitting unit 12 cannot be electrically connected to the first power voltage terminal PVDD, so that the second light-emitting unit 12 does not emit light.

[0096] It should be noted that when the same sub-pixel SP includes a plurality of second light-emitting units 12, the pixel driving circuit 20 can include a plurality of second light-emitting control modules 202. Different second light-emitting units 12 can be electrically connected to the first power voltage terminal PVDD through different second light-emitting control modules 202.

[0097] Figure 9The second light emitting unit 12 includes the first sub light emitting unit 121, the second sub light emitting unit 122, the third sub light emitting unit 123 and the fourth sub light emitting unit 124 as an example. Correspondingly, the second light emitting control module 202 includes the first sub light emitting control module 2021, the second sub light emitting control module 2022, the third sub light emitting control module 2023 and the fourth sub light emitting control module 2024. The second light emitting control signal line E2 includes the first sub light emitting control signal line E21, the second sub light emitting control signal line E22, the third sub light emitting control signal line E23 and the fourth sub light emitting control signal line E24. The first sub light emitting control signal line E21 controls the first sub light emitting control module 2021, and the first sub light emitting control module 2021 is electrically connected to the first sub light emitting unit 121. The second sub light emitting control signal line E22 controls the second sub light emitting control module 2022, and the second sub light emitting control module 2022 is electrically connected to the second sub light emitting unit 122. The third sub light emitting control signal line E23 controls the third sub light emitting control module 2023, and the third sub light emitting control module 2023 is electrically connected to the third sub light emitting unit 123. The fourth sub light emitting control signal line E24 controls the fourth sub light emitting control module 2024, and the fourth sub light emitting control module 2024 is electrically connected to the fourth sub light emitting unit 124.

[0098] As shown in the example, Figure 9 The pixel driving circuit 20 further includes a gate reset module 203, an anode reset module 204, a data writing module 205, a threshold compensation module 206, a third light emitting control module 207 and a storage capacitor Cst. The gate reset module 203 includes a gate reset transistor M1 electrically connected between a first reset signal line Ref1 and the gate of the driving transistor M0, for resetting the gate of the driving transistor M0 in response to an active level provided by the first scan signal line S1. The anode reset module 204 includes an anode reset transistor M2 electrically connected between a second reset signal line Ref2 and the first electrode 101 of the first light emitting unit 11, for resetting the first electrode 101 of the first light emitting unit 11 in response to an active level provided by the second scan signal line S2. The data writing module 205 includes a data writing transistor M3 electrically connected between a data line 32 and the first pole of the driving transistor M0. The threshold compensation module 206 includes a threshold compensation transistor M4 electrically connected between the second pole of the driving transistor M0 and the gate of the driving transistor M0. The data writing transistor M3 and the threshold compensation transistor M4 are used for writing a data voltage to the gate of the driving transistor M0 and performing threshold compensation on the driving transistor M0 in response to an active level provided by the second scan signal line S2.

[0099] The first light-emitting control module 201 includes a first light-emitting control transistor M5, which is electrically connected between the second electrode of the driving transistor M0 and the first light-emitting unit 11. The second light-emitting control module 202 includes a second light-emitting control transistor M6, which is electrically connected between the first power supply voltage terminal PVDD and the first electrode 101 of the second light-emitting unit 12. The third light-emitting control module 207 includes a third light-emitting control transistor M7, which is electrically connected between the first power supply voltage terminal PVDD and the first electrode of the driving transistor M0, and its gate is electrically connected to the aforementioned first light-emitting control signal line E1.

[0100] By adopting this configuration, the current of the first light-emitting unit 11 can be related to the data voltage provided by the data line 32. For example, the current of the first light-emitting unit 11 can change when the received image signal changes. Furthermore, the second light-emitting unit 12 can operate under a constant current, and its current can differ from that of the first light-emitting unit 11. This allows the grayscale of the second light-emitting unit 12 to differ from that of the first light-emitting unit 11, thereby interfering with the light emitted by the first light-emitting unit 11 and preventing users from clearly seeing the display image from a wide viewing angle, thus achieving privacy protection from a wide viewing angle.

[0101] When the second light-emitting unit 12 includes a first sub-light-emitting unit 121, a second sub-light-emitting unit 122, a third sub-light-emitting unit 123, and a fourth sub-light-emitting unit 124, as follows: Figure 9 As shown, the third light-emitting control transistor M7 may include a first sub-transistor M71, a second sub-transistor M72, a third sub-transistor M73, and a fourth sub-transistor M74.

[0102] In shared mode M1, combined with Figure 9 and Figure 9 As shown, Figure 10 for Figure 10 The diagram shows a timing sequence of a pixel driving circuit. The first light-emitting control signal line E1 provides the enable level (…). Figure 9 (Illustratively, with the enable level low), the first light-emitting control module 201 and the third light-emitting control module 207 are turned on, and the drive current converted by the driving transistor M0 flows through the first light-emitting control module 201 to the first light-emitting unit 11, causing the first light-emitting unit 11 to emit light. Combined with... Figure 10 As shown, the small-angle light L11 emitted by the first light-emitting unit 11 enters the first user Y1 under the normal viewing angle, and the large-angle light L12 enters the second user Y2 under the large viewing angle.

[0103] In shared mode M1, such as Figure 4 As shown, the second light-emitting control signal line E2 provides a disabled level (Figure 10 When the non-enabling level is high (as an example), the second light emitting control module 202 is turned off, the second light emitting unit 12 does not emit light, and the large-angle light emitted by the first light emitting unit 11 towards the large viewing angle is not disturbed, so that the second user Y2 located at the large viewing angle can clearly see the display screen.

[0104] As an example, in the first privacy mode M21, as shown in Figure 10 The first light emitting control signal line E1 provides an enabling level, the first light emitting control module 201 and the third light emitting control module 207 are turned on, and the driving current converted by the driving transistor M0 flows to the first light emitting unit 11 through the first light emitting control module 201, so that the first light emitting unit 11 emits light.

[0105] In addition, the second light emitting control signal line E2 provides an enabling level, and the second light emitting control module 202 corresponding thereto is turned on, and the first electrode 101 of the corresponding second light emitting unit 12 is electrically connected to the first power voltage terminal PVDD. The second electrode of the second light emitting unit 12 is electrically connected to the second power voltage terminal PVEE, so that when the second light emitting control module 202 is turned on, the driving current flows through the corresponding second light emitting unit 12, so that the second light emitting unit 12 emits light. In combination with Figure 10 As shown in

[0106] When the same sub-pixel SP includes a plurality of second light emitting units 12, and the pixel driving circuit 20 includes a plurality of second light emitting control modules 202, the number and position of the turned-on second light emitting control modules 202 are set according to the requirements of the display mode.

[0107] Figure 5 The first privacy mode M21 requires that the first user Y1 located at the normal viewing angle of the display panel can clearly see the display screen, and the second user Y2 located at the Figure 10As shown in the first orientation F1, the second orientation F2, the third orientation F3 and the fourth orientation F4 of the second user Y2, the display mode of the display panel cannot be seen as an example, in this case, the first sub-emitting control signal line E21, the second sub-emitting control signal line E22, the third sub-emitting control signal line E23 and the fourth sub-emitting control signal line E24 provide an enable level in the first privacy mode, respectively control the first sub-emitting control module 2021, the second sub-emitting control module 2022, the third sub-emitting control module 2023 and the fourth sub-emitting control module 2024 to turn on, so that the first sub-emitting unit 121, the second sub-emitting unit 122, the third sub-emitting unit 123 and the fourth sub-emitting unit 124 all emit light, respectively interfere with the large-angle light emitted by the first emitting unit 11 towards the four orientations.

[0108] In another alternative embodiment, as shown in Figure 7 Figure 11 As shown in the pixel driving circuit in the first privacy mode, in the first privacy mode M21, the first emitting control signal line E1 provides an enable level, and the first emitting unit 11 emits light. Figure 11

[0109] As shown in Figure 9 and Figure 2 , the first sub-emitting unit 121 located at the first side of the first emitting unit 11 emits light towards the first orientation F1 of the display panel, interferes with the large-angle light of the first emitting unit 11, so that the first sub-user Y21 located at the first orientation F1 of the display panel cannot see the display panel.

[0110] As shown in and

[0111] , the second sub-emitting unit 122 located at the second side of the first emitting unit 11 emits light towards the second orientation F2 of the display panel, interferes with the large-angle light of the first emitting unit 11, so that the second sub-user Y22 located at the second orientation F2 of the display panel cannot see the display panel.

[0112] ​The fourth sub-emitting control signal line E24 provides a non-enabling level, the fourth sub-emitting unit 124 does not emit light, and the large-angle light emitted by the first emitting unit 11 towards the fourth orientation F4 can not be disturbed, so that the fourth sub-user Y24 located at the fourth orientation F4 of the display panel can clearly see the display picture.

[0113] With this arrangement, the visible viewing angle in the first privacy mode M11 includes the normal viewing angle, the large viewing angle at the third orientation F3, and the large viewing angle at the fourth orientation F4, and the invisible viewing angle includes the large viewing angle at the first orientation F1 and the large viewing angle at the second orientation F2.

[0114] For example, when the sub-pixel SP adopts the structure as shown in FIG. 1, the first emitting unit 11 and the second emitting unit 12 in the same sub-pixel SP can emit monochromatic light, and the light-emitting colors of the first emitting unit 11 and the second emitting unit 12 included in the same sub-pixel SP can be the same. For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color. Figure 7 As shown in FIG. 1, the first emitting unit 11 and the second emitting unit 12 in the same sub-pixel SP can emit monochromatic light, and the light-emitting colors of the first emitting unit 11 and the second emitting unit 12 included in the same sub-pixel SP can be the same. For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color.

[0115] The first emitting unit 11 and the second emitting unit 12 in the same sub-pixel SP can emit monochromatic light, and the light-emitting colors of the first emitting unit 11 and the second emitting unit 12 included in the same sub-pixel SP can be the same. For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color.

[0116] For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color.

[0117] For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color.

[0118] For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color. Figure 9 For example, the first emitting unit 11 and the second emitting unit 12 in the first sub-pixel SP1 can emit light of the first color; the first emitting unit 11 and the second emitting unit 12 in the second sub-pixel SP2 can emit light of the second color; and the first emitting unit 11 and the second emitting unit 12 in the third sub-pixel SP3 can emit light of the third color. Figure 12The present invention provides an equivalent circuit diagram of another sub-pixel SP. The pixel driving circuit 20 includes a driving transistor M0, a first light-emitting control module 201, and a second light-emitting control module 202.

[0119] The first light-emitting control module 201, the driving transistor M0, and the first light-emitting unit 11 are electrically connected between the first power supply voltage terminal PVDD and the second power supply voltage terminal PVEE. The driving transistor M0 is used to generate driving current. The first light-emitting control module 201 can control the first light-emitting unit 11 to emit light or not emit light under the action of the first light-emitting control signal line E1.

[0120] Specifically, when the first light-emitting control signal line E1 controls the first light-emitting control module 201 to be turned on, the driving current generated by the driving transistor M0 can flow through the first light-emitting unit 11, thereby causing the first light-emitting unit 11 to emit light. When the first light-emitting control signal line E1 controls the first light-emitting control module 201 to be turned off, the driving current generated by the driving transistor M0 cannot flow through the first light-emitting unit 11, thereby causing the first light-emitting unit 11 to not emit light.

[0121] like Figure 12 As shown, the second light-emitting control module 202, the driving transistor M0, and the second light-emitting unit 12 are electrically connected between the first power supply voltage terminal PVDD and the second power supply voltage terminal PVEE. The second light-emitting control module 202 can control the first light-emitting unit 11 to emit light or not emit light under the action of the second light-emitting control signal line E2.

[0122] Specifically, when the second light-emitting control signal line E2 controls the second light-emitting control module 202 to be turned on, the driving current generated by the driving transistor M0 can flow through the second light-emitting unit 12, thereby causing the second light-emitting unit 12 to emit light. When the second light-emitting control signal line E2 controls the second light-emitting control module 202 to be turned off, the driving current generated by the driving transistor M0 cannot flow through the second light-emitting unit 12, thereby causing the second light-emitting unit 12 to not emit light.

[0123] By adopting this configuration, and by electrically connecting the driving transistor M0 to the first light-emitting unit 11 and the second light-emitting unit 12 through the first light-emitting control module 201 and the second light-emitting control module 202 respectively, the driving current of the first light-emitting unit 11 and the second light-emitting unit 12 can be equal to the driving current flowing through the driving transistor M0. That is, the driving current of the first light-emitting unit 11 and the second light-emitting unit 12 can be related to the data voltage received by the pixel driving circuit 20. When the second light-emitting unit 12 emits light, the display screen can be changed by adjusting the brightness of the second light-emitting unit 12.

[0124] It should be noted that when the same sub-pixel SP includes a plurality of second light emitting units 12, the pixel driving circuit 20 can include a plurality of second light emitting control modules 202, and different second light emitting units 12 can be electrically connected to the driving transistor M0 through different second light emitting control modules 202.

[0125] Figure 12 Taking the second light emitting unit 12 including the first sub-light emitting unit 121, the second sub-light emitting unit 122, the third sub-light emitting unit 123 and the fourth sub-light emitting unit 124 as an example. Correspondingly, the second light emitting control module 202 includes the first sub-light emitting control module 2021, the second sub-light emitting control module 2022, the third sub-light emitting control module 2023 and the fourth sub-light emitting control module 2024. The second light emitting control signal line E2 includes the first sub-light emitting control signal line E21, the second sub-light emitting control signal line E22, the third sub-light emitting control signal line E23 and the fourth sub-light emitting control signal line E24. Among them, the first sub-light emitting control signal line E21 controls the first sub-light emitting control module 2021, and the first sub-light emitting control module 2021 is electrically connected to the first sub-light emitting unit 121. The second sub-light emitting control signal line E22 controls the second sub-light emitting control module 2022, and the second sub-light emitting control module 2022 is electrically connected to the second sub-light emitting unit 122. The third sub-light emitting control signal line E23 controls the third sub-light emitting control module 2023, and the third sub-light emitting control module 2023 is electrically connected to the third sub-light emitting unit 123. The fourth sub-light emitting control signal line E24 controls the fourth sub-light emitting control module 2024, and the fourth sub-light emitting control module 2024 is electrically connected to the fourth sub-light emitting unit 124.

[0126] For example, Figure 12As shown, the pixel driving circuit 20 further comprises a gate reset module 203, an anode reset module 204, a data writing module 205, a threshold compensation module 206, a third light emitting control module 207 and a storage capacitor Cst. The gate reset module 203 comprises a gate reset transistor M1 electrically connected between a first reset signal line Ref1 and the gate of the driving transistor M0, for resetting the gate of the driving transistor M0 in response to an active level provided by the first scan signal line S1. The anode reset module 204 comprises an anode reset transistor M2 electrically connected between a second reset signal line Ref2 and the first electrode 101 of the first light emitting unit 11, for resetting the first electrode 101 of the first light emitting unit 11 in response to an active level provided by the second scan signal line S2. The data writing module 205 comprises a data writing transistor M3 electrically connected between a data line 32 and the first pole of the driving transistor M0, and the threshold compensation module 206 comprises a threshold compensation transistor M4 electrically connected between the second pole of the driving transistor M0 and the gate of the driving transistor M0. The data writing transistor M3 and the threshold compensation transistor M4 are configured to write a data voltage to the gate of the driving transistor M0 and to perform threshold compensation on the driving transistor M0 in response to an active level provided by the second scan signal line S2.

[0127] The first light emitting control module 201 comprises a first light emitting control transistor M5 electrically connected between the second pole of the driving transistor M0 and the first light emitting unit 11. The second light emitting control module 202 comprises a second light emitting control transistor M6 electrically connected between the second pole of the driving transistor M0 and the first electrode 101 of the second light emitting unit 12. The third light emitting control module 207 comprises a third light emitting control transistor M7 electrically connected between a first power voltage terminal PVDD and the first pole of the driving transistor M0, and the gate of the third light emitting control transistor M7 is electrically connected to the first light emitting control signal line E1.

[0128] As shown, when the second light emitting unit 12 comprises a first sub light emitting unit 121, a second sub light emitting unit 122, a third sub light emitting unit 123 and a fourth sub light emitting unit 124, the third light emitting control transistor M7 can comprise a first sub transistor M71, a second sub transistor M72, a third sub transistor M73 and a fourth sub transistor M74. Figure 12

[0129] As shown, in the sharing mode M1, the first light emitting control signal line E1 is electrically connected to the gate of the third light emitting control transistor M7, and the second light emitting control signal line E2 is electrically connected to the gate of the second light emitting control transistor M6. Figure 12 Figure 12 Figure 13 Figure 13 ​​​​A working timing diagram of the pixel driving circuit is shown in FIG. 6. The first light emitting control signal line E1 provides an enable level, the first light emitting control module 201 and the third light emitting control module 207 are turned on, and the driving current converted by the driving transistor M0 flows to the first light emitting unit 11 through the first light emitting control module 201, so that the first light emitting unit 11 emits light. In combination with Figure 12 As shown, the small-angle light emitted by the first light emitting unit 11 enters the first user Y1 at the normal viewing angle, and the large-angle light enters the second user Y2 at the large viewing angle.

[0130] In the sharing mode M1, as shown in FIG. 7, the first light emitting control signal line E1 provides a non-enable level, the first light emitting control module 201 and the third light emitting control module 207 are turned off, and the second light emitting control signal line E2 provides an enable level. In combination with Figure 4 As shown, the second light emitting control module 202 corresponding to the enable level is turned on, and the driving current converted by the driving transistor M0 is transmitted to the corresponding second light emitting unit 12, so that the second light emitting unit 12 emits light.

[0131] In the second privacy mode M22, as shown in FIG. 8, the first light emitting control signal line E1 provides a non-enable level, the first light emitting control module 201 and the third light emitting control module 207 are turned off, so that the first light emitting unit 11 does not emit light. Figure 13

[0132] And the second light emitting control signal line E2 provides an enable level, and the second light emitting control module 202 corresponding to the enable level is turned on, and the driving current converted by the driving transistor M0 is transmitted to the corresponding second light emitting unit 12, so that the second light emitting unit 12 emits light. In combination with Figure 13 As shown, the light emitted by the second light emitting unit 12 can be received by the corresponding second user Y2, so that the display screen can be seen at the large viewing angle. Since the first light emitting unit 11 does not emit light, the first user Y1 at the normal viewing angle cannot see the display screen clearly.

[0133] When the same sub-pixel SP includes a plurality of second light emitting units 12, and the pixel driving circuit 20 includes a plurality of second light emitting control modules 202, the number and position of the turned-on second light emitting control modules 202 are set according to the requirements of the display mode.

[0134] Figure 6 In the second privacy mode M22, the first user Y1 located at the normal viewing angle of the display panel cannot see the display screen clearly, and the second user Y2 located at the large viewing angle of the display panel can see the display screen clearly. Figure 13 ​As shown in the diagram, users in the first position F1, second position F2, third position F3, and fourth position F4 can all clearly see the display screen. In this case, the first sub-light emission control signal line E21, the second sub-light emission control signal line E22, the third sub-light emission control signal line E23, and the fourth sub-light emission control signal line E24 all provide enable levels in the second privacy mode M22, respectively controlling the first sub-light emission control module 2021, the second sub-light emission control module 2022, the third sub-light emission control module 2023, and the fourth sub-light emission control module 2024 to conduct, so that the first sub-light emission unit 121, the second sub-light emission unit 122, the third sub-light emission unit 123, and the fourth sub-light emission unit 124 all emit light, so that the second user Y2 located in the four positions of the display panel can clearly see the display screen, realizing the second privacy mode that is visible from a wide viewing angle but not visible from a straight viewing angle.

[0135] In another alternative implementation, such as Figure 7 As shown, Figure 14 for Figure 14 The diagram shows another working timing of the pixel driving circuit in the second privacy mode. In the second privacy mode M22, the first light emission control signal line E1 provides an enable level, so that the first light emission unit 11 does not emit light.

[0136] The first sub-light emission control signal line E21 provides the enable level, combined with Figure 12 and Figure 2 As shown, the first sub-light-emitting unit 121 located on the first side of the first light-emitting unit 11 emits light toward the first position F1 of the display panel, so that the first sub-user Y21 located below the first position F1 of the display panel can see the display screen clearly.

[0137] The second sub-light emission control signal line E22 provides an enable level, and the second sub-light emission unit 122 located on the second side of the first light emission unit 11 emits light toward the second position F2 of the display panel, so that the second sub-user Y22 located below the second position F2 of the display panel can see the display screen clearly.

[0138] The third sub-light emission control signal line E23 is provided with an enable level, so the third sub-light emission unit 123 does not emit light. This prevents the third sub-user Y23, located under the third third bit F3 on the display panel, from receiving light and thus prevents it from seeing the display screen. For example, the third sub-user Y23 will see the display panel as black.

[0139] The fourth sub-light emission control signal line E24 is provided with an enable level, so the fourth sub-light emission unit 124 does not emit light, thus preventing the fourth sub-user Y24, located at the fourth position F4 of the display panel, from seeing the display screen. For example, the fourth sub-user Y24 will see the display panel as black.

[0140] With the arrangement, the visible viewing angle in the second privacy mode M22 includes the large viewing angle in the first orientation F1 and the large viewing angle in the second orientation F2. The invisible viewing angle includes the large viewing angle in the third orientation F3 and the large viewing angle in the fourth orientation F4.

[0141] It should be noted that, as shown in Figure 7 , Figure 10 , Figure 11 and Figure 13 , the working process of the pixel driving circuit 20 includes a reset period t1, a data writing period t2 and an emission period t3. The signals transmitted by the first emission control signal line E1 and the second emission control signal line E2 are all in the state in the emission period t3.

[0142] For example, the first emission unit 11 and the second emission unit 12 in the sub-pixel SP with the structure shown in Figure 14 may emit monochromatic light, and the light colors of the two are the same. For example, the first emission unit 11 and the second emission unit 12 in the first sub-pixel SP1 emit light of the first color; the first emission unit 11 and the second emission unit 12 in the second sub-pixel SP2 emit light of the second color; and the first emission unit 11 and the second emission unit 12 in the third sub-pixel SP3 emit light of the third color.

[0143] For example, as shown in Figure 12 , the pixel unit includes a first sub-pixel SP1, a second sub-pixel SP2 and a third sub-pixel SP3. The first electrodes 101 of the second emission units 12 in different sub-pixels which emit light in the same orientation can be electrically connected to each other. For example, each sub-pixel SP includes a first sub-emission unit 121, a second sub-emission unit 122, a third sub-emission unit 123 and a fourth sub-emission unit 124, as shown in Figure 8As shown, the first electrode 101 of the first sub-light emitting unit 121 of the first sub-pixel SP1, the first electrode 101 of the first sub-light emitting unit 121 of the second sub-pixel SP2 and the first electrode 101 of the first sub-light emitting unit 121 of the third sub-pixel SP3 are electrically connected. The first electrode 101 of the second sub-light emitting unit 122 of the first sub-pixel SP1, the first electrode 101 of the second sub-light emitting unit 122 of the second sub-pixel SP2 and the first electrode 101 of the second sub-light emitting unit 122 of the third sub-pixel SP3 are electrically connected. The first electrode 101 of the third sub-light emitting unit 123 of the first sub-pixel SP1, the first electrode 101 of the third sub-light emitting unit 123 of the second sub-pixel SP2 and the first electrode 101 of the third sub-light emitting unit 123 of the third sub-pixel SP3 are electrically connected. The first electrode 101 of the fourth sub-light emitting unit 124 of the first sub-pixel SP1, the first electrode 101 of the fourth sub-light emitting unit 124 of the second sub-pixel SP2 and the first electrode 101 of the fourth sub-light emitting unit 124 of the third sub-pixel SP3 are electrically connected.

[0144] With the arrangement, the second light emitting units 12 in different sub-pixels which emit light in the same direction can be simultaneously lighted or not lighted, and the second light emitting units 12 in different sub-pixels SP which emit light in the same direction can be connected to Figure 8 or Figure 9 The same second light emitting control module 202 in the pixel driving circuit 20 shown is conducive to reducing the number of second light emitting control modules 202 arranged in the display panel, and can simplify the circuit structure of the display panel.

[0145] For example, as shown, Figure 12 as shown, Figure 15 Another cross-sectional view of a display panel is provided for the embodiment of the present application, and the pixel driving circuit 20 includes a first transistor T1 electrically connected to the first light emitting unit 11 and a second transistor T2 electrically connected to the second light emitting unit 12.

[0146] The at least part of the orthographic projection of the first transistor T1 on the plane where the substrate 1 is located is located in the first opening 210; and the at least part of the orthographic projection of the second transistor T2 on the plane where the substrate 1 is located is located outside the first opening 210.

[0147] For example, the first transistor T1 can include Figure 15 or Figure 9 The second transistor T2 includes Figure 12 or Figure 9The second light-emitting control transistor M6 is shown. This arrangement shortens the distance between the first transistor T1 and the first light-emitting unit 11, facilitating their electrical connection; and also shortens the distance between the second transistor T2 and the second light-emitting unit 12, facilitating their electrical connection.

[0148] Optional, such as Figure 12 As shown, the driving layer 3 includes a semiconductor layer S, a first insulating layer IS1, a first metal layer MT1, a second insulating layer IS2, a second metal layer MT2, a third insulating layer IS3, a third metal layer MT3, and a fourth insulating layer IS4, which are sequentially stacked on one side of the substrate 1.

[0149] Semiconductor layer S may include Figure 15 or Figure 9 The active layer of the transistor in the pixel driving circuit 20 shown. The first metal layer MT1 may include the first scan signal line S1, the second scan signal line S2, the first light emission control signal line E1, the second light emission control signal line E2, and the first electrode of the storage capacitor Cst. The second metal layer MT2 may include the second electrode of the storage capacitor Cst. The third metal layer MT3 may include... Figure 12 or Figure 9 The source, drain, and data line 32 of the transistor in the pixel driving circuit 20 shown.

[0150] For example, the edge of the shape of the orthographic projection of the first light-emitting unit 11 onto the plane of the substrate 1 includes an arc edge; and / or, the edge of the shape of the orthographic projection of the second light-emitting unit 12 onto the plane of the substrate 1 includes an arc edge. The arc edge setting can weaken the diffraction when ambient light enters, and also reduce the diffraction problem of ambient light reflected by the display panel, which is beneficial to improving the display effect of the display panel.

[0151] The shape of the orthographic projection of the first light-emitting unit 11 onto the plane of the substrate 1 includes the shape of the orthographic projection of the first electrode 101 of the first light-emitting unit 11 onto the plane of the substrate 1, or it may also include the shape of the orthographic projection of the light-emitting layer 100 of the first light-emitting unit 11 onto the plane of the substrate. Figure 12 The shape of the orthographic projection of the first electrode 101 of the first light-emitting unit 11 onto the plane of the substrate 1 includes an arc edge as an illustration. For example, as shown... Figure 8 As shown, in embodiments of the present invention, the shape of the orthogonal projection of the first electrode 101 of the first light-emitting unit 11 onto the plane of the substrate 1 may include a circle.

[0152] The shape of the orthographic projection of the second light-emitting unit 12 onto the plane of the substrate 1 includes the shape of the orthographic projection of the first electrode 101 of the second light-emitting unit 12 onto the plane of the substrate 1, or it may also include the shape of the orthographic projection of the light-emitting layer 100 of the second light-emitting unit 12 onto the plane of the substrate.Figure 8 The shape of the orthographic projection of the first electrode 101 of the second light-emitting unit 12 onto the plane of the substrate 1 includes an arc edge as an illustration. For example, as shown... Figure 8 As shown, in this embodiment of the invention, the shape of the orthogonal projection of the first electrode 101 of the second light-emitting unit 12 onto the plane of the substrate 1 can include a fan shape.

[0153] In another alternative embodiment, the shape of the first light-emitting unit 11 projected onto the plane of the substrate 1 may include straight edges; and / or, the shape of the second light-emitting unit 12 projected onto the plane of the substrate 1 may include straight edges.

[0154] Based on the same inventive concept, embodiments of the present invention also provide a display device, such as... Figure 8 As shown, Figure 16 This is a schematic diagram of a display device provided in an embodiment of the present invention. The display device includes the aforementioned display panel 1000. The specific structure of the display panel 1000 has been described in detail in the above embodiments and will not be repeated here. Figure 16 Figure 16 The display device shown is for illustrative purposes only. The display device can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader, in-vehicle display screen or television.

[0155] 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.

[0156] 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 first insulating layer located on one side of the substrate, the first insulating layer including a plurality of first openings, the angle between the side of the first opening and the plane of the substrate facing away from the first opening is α, where α is an acute angle; A first light-emitting unit and multiple second light-emitting units; A plurality of second light-emitting units at least partially surround the first light-emitting unit; and the first light-emitting unit and the plurality of second light-emitting units are located within the same first opening; along a direction perpendicular to the plane of the substrate, the side surfaces of the first light-emitting unit and the first opening do not at least partially overlap, while the side surfaces of the second light-emitting units and the first opening at least partially overlap. A driving layer, at least a portion of which is located on the side of the first insulating layer away from the substrate; the driving layer includes a pixel driving circuit electrically connected to the first light-emitting unit and / or the second light-emitting unit.

2. The display panel according to claim 1, characterized in that, The display panel includes a privacy mode and a sharing mode. In the shared mode, the first light-emitting unit emits light, while the second light-emitting unit does not emit light; The privacy protection mode includes a first privacy protection mode and / or a second privacy protection mode; In the first privacy mode, the first light-emitting unit and at least one of the second light-emitting units emit light; In the second privacy mode, the first light-emitting unit does not emit light, while at least one of the second light-emitting units emits light.

3. The display panel according to claim 1, characterized in that, It also includes a partition portion, which is located between the first light-emitting unit and the second light-emitting unit; Both the first light-emitting unit and the second light-emitting unit include a light-emitting layer, and the light-emitting layer of the first light-emitting unit and the light-emitting layer of the second light-emitting unit are disconnected at the partition portion; The angle between the side surface and the bottom surface of the partition is an obtuse angle.

4. The display panel according to claim 3, characterized in that, It also includes a pixel definition layer located on the side of the first insulating layer away from the substrate, the pixel definition layer including a plurality of second openings; The angle between the side of the second opening and the plane where the substrate is located, which faces away from the second opening, is β, where β is an acute angle; Along a direction perpendicular to the plane of the substrate, the second opening and the first opening at least partially overlap; The first light-emitting unit, the plurality of second light-emitting units, and the partition are located within the same second opening.

5. The display panel according to claim 4, characterized in that, The orthographic projection of the second opening onto the plane of the substrate overlaps the orthographic projection of the first opening onto the plane of the substrate.

6. The display panel according to claim 4, characterized in that, The pixel definition layer and the partition are formed in the same process.

7. The display panel according to claim 3, characterized in that, The partition includes a light-blocking material.

8. The display panel according to claim 1, characterized in that, α≤75°。 9. The display panel according to claim 1, characterized in that, The pixel driving circuit includes a first transistor electrically connected to the first light-emitting unit and a second transistor electrically connected to the second light-emitting unit; At least a portion of the orthographic projection of the first transistor onto the plane of the substrate lies within the first opening; At least a portion of the orthogonal projection of the second transistor onto the plane of the substrate lies outside the first opening.

10. The display panel according to claim 1, characterized in that, The plurality of second light-emitting units include at least a first sub-light-emitting unit, a second sub-light-emitting unit, a third sub-light-emitting unit, and a fourth sub-light-emitting unit; Along the first direction, the first sub-light-emitting unit and the second sub-light-emitting unit are located on both sides of the first light-emitting unit; Along the second direction, the third sub-light-emitting unit and the fourth sub-light-emitting unit are located on both sides of the first light-emitting unit; the first direction and the second direction intersect. The first light-emitting unit, the first sub-light-emitting unit, the second sub-light-emitting unit, the third sub-light-emitting unit, and the fourth sub-light-emitting unit all include a first electrode, and, In the first sub-light-emitting unit, the second sub-light-emitting unit, the third sub-light-emitting unit, and the fourth sub-light-emitting unit, the first electrodes of any two adjacent units are mutually insulated; and the first electrodes of all four units are mutually insulated from the first electrode of the first light-emitting unit.

11. The display panel according to claim 10, characterized in that, The display panel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; The first sub-pixel, the second sub-pixel, and the third sub-pixel all include the first light-emitting unit and the second light-emitting unit, and the light emitted by the first light-emitting unit in the first sub-pixel, the second sub-pixel, and the third sub-pixel is different. The first electrode of the first sub-light-emitting unit of the first sub-pixel, the first electrode of the first sub-light-emitting unit of the second sub-pixel, and the first electrode of the first sub-light-emitting unit of the third sub-pixel are electrically connected to each other.

12. The display panel according to claim 1, characterized in that, The pixel driving circuit includes a driving transistor, a first light-emitting control module, and a second light-emitting control module, wherein... The first light-emitting control module, the driving transistor, and the first light-emitting unit are electrically connected between the first power supply voltage terminal and the second power supply voltage terminal; The second light-emitting control module and the second light-emitting unit are electrically connected between the first power supply voltage terminal and the second power supply voltage terminal.

13. The display panel according to claim 12, characterized in that, The display panel's display modes include a first privacy mode and a sharing mode; In the shared mode, the first light-emitting control module is turned on to make the first light-emitting unit emit light; The second light-emitting control module is turned off so that the second light-emitting unit does not emit light; In the first privacy mode, the first light-emitting control module and at least one second light-emitting control module are turned on to make the first light-emitting unit and at least one second light-emitting unit emit light.

14. The display panel according to claim 12, characterized in that, Both the first light-emitting unit and the second light-emitting unit emit monochromatic light, and the emitted light colors are the same. or, The first light-emitting unit emits monochromatic light, and the second light-emitting unit emits white light.

15. The display panel according to claim 1, characterized in that, The pixel driving circuit includes a driving transistor, a first light-emitting control module, and a second light-emitting control module, wherein... The first light-emitting control module, the driving transistor, and the first light-emitting unit are electrically connected between the first power supply voltage terminal and the second power supply voltage terminal; The second light-emitting control module, the driving transistor, and the second light-emitting unit are electrically connected between the first power supply voltage terminal and the second power supply voltage terminal.

16. The display panel according to claim 15, characterized in that, The display panel's display modes include a second privacy mode and a sharing mode; In the shared mode, the first light-emitting control module is turned on to make the first light-emitting unit emit light; The second light-emitting control module is turned off so that the second light-emitting unit does not emit light; In the second privacy mode, the first light-emitting control module is turned off so that the first light-emitting unit does not emit light, and the second light-emitting control module electrically connected to at least one second light-emitting unit is turned on so that at least one second light-emitting unit emits light.

17. The display panel according to claim 15, characterized in that, Both the first light-emitting unit and the second light-emitting unit emit monochromatic light, and the emitted light colors are the same.

18. The display panel according to claim 1, characterized in that, The edge of the shape of the orthographic projection of the first light-emitting unit onto the plane of the substrate includes an arc edge; And / or, The edge of the shape of the second light-emitting unit as an orthographic projection onto the plane of the substrate includes an arc edge.

19. A display device, characterized in that, Includes the display panel as described in any one of claims 1-18.

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