Display panel and display device

Abstract

The embodiments of the present application provide a display panel and a display device, including a substrate, a light-emitting device layer and a shading layer, wherein the shading layer is arranged on a side of the light-emitting device layer away from the substrate; the secondary light-emitting devices in the light-emitting device layer are arranged around the main light-emitting devices; the shading layer includes a first opening arranged corresponding to the main light-emitting devices and a shading portion covering the secondary light-emitting devices. In the display panel and the display device provided by the present application, when the main light-emitting device and the secondary light-emitting device both emit light, when the light emitted by the main light-emitting device is seen at a wide viewing angle, the interference light emitted by the secondary light-emitting device can also be seen; when the main light-emitting device emits light and the secondary light-emitting device does not emit light, only the light emitted by the main light-emitting device can be seen. Therefore, the display panel and the display device provided by the embodiments of the present application can prevent peeping and can be switched between different display modes, and the display mode control of the display panel is more flexible, which improves the user experience.

Description

[Technical field]

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

[0002] With the continuous development of network technology, more and more users need to perform account transactions and other operations on display devices. However, when users perform the above operations in public places, it is easy for personal information to be leaked when they access bank accounts, pay bills or enter personal information, which may lead to the risk of identity theft and privacy infringement. Therefore, display devices with anti-peeping function have received more and more attention.

[0003] For display panels, a grating structure is usually set on the light-emitting side of the display panel to form an anti-peeping film. The grating structure can block the light emitted from a wide viewing angle, thereby changing the wide viewing angle of the screen to a narrow viewing angle to achieve an anti-peeping function. However, after the grating structure is set in the display panel, the display panel can only be in the anti-peeping mode all the time. When multiple people need to watch the screen at the same time, it will cause inconvenience in use, thereby affecting the user experience.

[0004]

Application Contents

[0005] In view of this, embodiments of the present application provide a display panel and a display device to solve the above problems.

[0006] In a first aspect, an embodiment of the present application provides a display panel, including:

[0007] substrate;

[0008] A light emitting device layer is arranged on one side of the substrate; the light emitting device layer comprises a plurality of main light emitting devices and a plurality of sub-light emitting devices, and the sub-light emitting devices are arranged around the main light emitting devices;

[0009] The light shielding layer is arranged on a side of the light emitting device layer away from the substrate; the light shielding layer comprises a light shielding portion and a first opening arranged corresponding to the main light emitting device, and the light shielding portion covers the secondary light emitting device.

[0010] In a second aspect, an embodiment of the present application provides a display device, comprising a display panel provided in the first aspect.

[0011] In the display panel and display device provided in the embodiments of the present application, when both the main light-emitting device and the secondary light-emitting device emit light, the viewer can see the light emitted by the main light-emitting device at a wide viewing angle, that is, the interference light emitted by the secondary light-emitting device. Therefore, the display panel provided in the embodiments of the present application can achieve an anti-peeping effect, thereby well protecting the privacy of the user. When the main light-emitting device emits light and the secondary light-emitting device does not emit light, the viewer can only see the light emitted by the main light-emitting device regardless of whether it is at a wide viewing angle or a small viewing angle, that is, the viewer can normally view the image displayed by the display panel at different viewing angles. Therefore, the display panel provided in the embodiments of the present application realizes switching between different display modes, and the display mode control of the display panel is more flexible, which improves the user's experience.

Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application;

[0014] Figure 2 For along Figure 1 Schematic diagram of the cross section along the M1-M2 direction;

[0015] Figure 3 A schematic diagram of light emission of a display panel in an anti-peeping mode provided by an embodiment of the present application;

[0016] Figure 4 A schematic diagram of light emission of a display panel in a normal mode provided by an embodiment of the present application;

[0017] Figure 5 A schematic diagram of the relationship between a light emitting device and a light shielding layer in a display panel provided in an embodiment of the present application;

[0018] Figure 6 for Figure 5 A schematic projection diagram of the light emitting device and the light shielding layer shown;

[0019] Figure 7 A light path diagram of light emitted by a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0020] Figure 8 A schematic diagram of the connection between a light-emitting device and a pixel circuit in a display panel provided in an embodiment of the present application;

[0021] Fig. 9 for Figure 8 The equivalent circuit diagram of the pixel circuit and the light emitting device shown;

[0022] Fig.10 for Fig. 9 A timing diagram corresponding to the equivalent circuit shown;

[0023] Fig.11 for Fig. 9 A timing diagram corresponding to the equivalent circuit shown;

[0024] Fig.12 An equivalent circuit diagram of a pixel circuit and a light-emitting device in a display panel provided in an embodiment of the present application;

[0025] Fig.13 for Fig.12 A timing diagram corresponding to the equivalent circuit shown;

[0026] Fig.14 An equivalent circuit diagram of a pixel circuit and a light-emitting device in a display panel provided in an embodiment of the present application;

[0027] Fig.15 A schematic diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application;

[0028] Fig.16 A schematic diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application;

[0029] Fig.17 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0030] Fig.18 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0031] Fig.19 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0032] Fig. 20 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0033] Fig.21 A schematic diagram of a projection of a display panel provided in an embodiment of the present application;

[0034] Fig. 22 for Fig.21 A schematic projection diagram of a main light emitting device and a secondary light emitting device in the display panel shown;

[0035] Fig.23 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0036] Fig.24 A schematic diagram of projections of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0037] Fig.25 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0038] Fig.26 A schematic projection diagram of a main light-emitting device and a secondary light-emitting device in a display panel provided in an embodiment of the present application;

[0039] Fig. 27 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application;

[0040] Fig.28 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application;

[0041] Fig.29 A schematic diagram of a display panel provided in an embodiment of the present application;

[0042] Fig.30 For along Fig.29 Schematic diagram of the cross section along the N1-N2 direction;

[0043] Fig.31 A schematic diagram of light emission of a display panel in an anti-peeping mode provided by an embodiment of the present application;

[0044] Fig.32 A schematic diagram of light emission of a display panel in a normal mode provided by an embodiment of the present application;

[0045] Fig.33 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0046] Fig.34 A schematic diagram of the relationship between a light emitting device and a light shielding layer in a display panel provided in an embodiment of the present application;

[0047] Fig.35 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0048] Fig.36 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0049] Fig.37 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0050] Fig.38 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0051] Fig.39 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0052] Fig.40 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application;

[0053] Fig.41 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application;

[0054] Fig.42 A schematic diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application;

[0055] Fig.43 A schematic diagram of a display device provided in an embodiment of the present application. [Specific implementation method]

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

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

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

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

[0060] In the description of this specification, it is necessary to understand that the words such as "substantially", "approximately", "approximately", "about", "roughly", "substantially" and the like described in the claims and embodiments of the present application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.

[0061] It should be understood that although the terms first, second, third, etc. may be used to describe the concave-convex structure, etc. in the embodiments of the present application, these concave-convex structures, etc. should not be limited to these terms. These terms are only used to distinguish the concave-convex structures, etc. from each other. For example, without departing from the scope of the embodiments of the present application, the first concave-convex structure may also be referred to as the second concave-convex structure, and similarly, the second concave-convex structure may also be referred to as the first concave-convex structure.

[0062] The applicant in this case has provided a solution to the problems existing in the prior art through careful and in-depth research.

[0063] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application, Figure 2 For along Figure 1 Schematic diagram of the cross section along the M1-M2 direction.

[0064] like Figure 1 and Figure 2 As shown, the display panel 001 provided in the embodiment of the present application includes a substrate 01, a light emitting device layer 02 and a light shielding layer 03. The light emitting device layer 02 is arranged on one side of the substrate 01, and the light shielding layer 03 is arranged on the side of the light emitting device layer 02 away from the substrate 01, or in other words, the light shielding layer 03 is arranged on the side of the light emitting device layer 02 facing the light emitting surface of the display panel 01.

[0065] Please refer to Figure 1 and Figure 2 The light emitting device layer 02 includes a plurality of main light emitting devices 21 and a plurality of sub-light emitting devices 22, and the sub-light emitting devices 22 are arranged around the main light emitting devices 21, such as Figure 1 As shown, the secondary light emitting device 22 is located outside the primary light emitting device 21 and adjacent to the primary light emitting device 21. That is, the display panel 001 includes a plurality of sub-pixels, and at least some of the sub-pixels include the primary light emitting device 21 and the secondary light emitting device 22 located outside the primary light emitting device 21.

[0066] The main light-emitting device 21 and the secondary light-emitting device 22 can be light-emitting devices of the same light-emitting type. For example, the main light-emitting device 21 and the secondary light-emitting device 22 can both be organic light-emitting diodes (OLED), or micro light-emitting diodes (Micro-LED) or sub-millimeter light-emitting diodes (Mini-LED).

[0067] The light shielding layer 03 includes a light shielding portion 31 and a first opening 32 provided corresponding to the main light emitting device 21, and the light shielding portion 31 covers the sub-light emitting device 22. A hollow portion is provided in the light shielding layer 03, and at least part of the hollow portion is the first opening 32, and the first opening 32 exposes at least part of the main light emitting device 21. In addition, along the direction perpendicular to the surface where the display panel 001 is located, the light shielding portion 31 covers the sub-light emitting device 22. That is, in the direction perpendicular to the plane where the substrate 01 is located, the first opening 32 exposes at least part of the main light emitting device 21, but the first opening 32 does not overlap with the sub-light emitting device 22.

[0068] Figure 3 A schematic diagram of light emission of a display panel in an anti-peeping mode provided in an embodiment of the present application, Figure 4 A schematic diagram of light emission of a display panel in a normal mode provided in an embodiment of the present application.

[0069] In the embodiments of the present application, Figure 3 As shown, the first opening 32 of the light shielding layer 03 corresponds to the main light emitting device 21 and exposes the main light emitting device 21, so the main light emitting device 21 of the display panel 001 can be used as the main device for the display panel 001 to perform light display. In addition, the secondary light emitting device 22 is arranged around the main light emitting device 21 and the secondary light emitting device 22 is covered by the light shielding portion 31 of the light shielding layer 03, so that at the normal viewing angle of the display panel 001, the light emitted by the secondary light emitting device 22 will not be seen. The normal viewing angle can be a front viewing angle or a viewing angle substantially facing the display panel 001.

[0070] Please continue to refer to Figure 3When both the main light emitting device 21 and the secondary light emitting device 22 emit light, that is, when the display mode of the display panel is the anti-peeping mode, at the normal viewing angle and the small viewing angle, the small-angle light L1 emitted by the main light emitting device 21 can be viewed through the first opening 32 in the light shielding layer 03, but the small-angle light L2 emitted by the secondary light emitting device 22 is blocked by the light shielding portion 31 of the light shielding layer 03 and cannot be viewed. At a wide viewing angle, when the large-angle light L1' emitted by the main light emitting device 21 is viewed through the first opening 32 in the light shielding layer 03, the large-angle light L2' emitted by the secondary light emitting device 22 can also be viewed through the hollow portion (for example, the first opening 32) in the light shielding layer 03. Among them, the light emitted by at least part of the secondary light emitting device 22 can be different from the light emitted by the main light emitting device 21, and thus at a wide viewing angle, the light emitted by the secondary light emitting device 22 that is viewed is different from the light emitted by the main light emitting device 21 that is viewed. When a viewer at a wide viewing angle can see the light emitted by the main light-emitting device 21, he can also see the interfering light emitted by the secondary light-emitting device 22. Therefore, the display panel 001 provided in the embodiment of the present application can achieve an anti-peeping effect, thereby well protecting the privacy of the user.

[0071] It should be noted that the viewing angle described in this application refers to the angle between the viewer's position and the center normal of the display panel 001 (i.e., the normal passing through the center of the display panel 001 and perpendicular to the surface where the display panel is located). When the angle is substantially 0°, it can be understood as a positive viewing angle, when the angle is less than the minimum anti-peeping angle, it can be understood as a small viewing angle, and when the angle is equal to or greater than the minimum anti-peeping angle, it can be understood as a large viewing angle. The minimum anti-peeping angle is determined according to demand.

[0072] Please refer to Figure 4 When the main light-emitting device 21 emits light and the secondary light-emitting device 22 does not emit light, that is, when the display mode of the display panel is the normal mode, the viewer can only see the light L1 and L1' emitted by the main light-emitting device 21 regardless of whether it is at a large viewing angle or a small viewing angle, that is, the viewer can normally view the image displayed by the display panel 001 at different viewing angles.

[0073] In summary, the embodiment of the present application sets a secondary light-emitting device 22 around the main light-emitting device 21, and the secondary light-emitting device 22 is covered by the shielding portion 31 of the shading layer 03. The light emission of the secondary light-emitting device 22 can be used to control whether the interference light emitted by the secondary light-emitting device 22 can be seen at a wide viewing angle, so that the display panel 001 can be switched between different display modes. The display mode control of the display panel 001 is more flexible, thereby improving the user experience.

[0074] Figure 5 A schematic diagram of the relationship between a light emitting device and a light shielding layer in a display panel provided in an embodiment of the present application, Figure 6 for Figure 5 A schematic projection diagram of the light-emitting device and the light-shielding layer shown.

[0075] In one embodiment of the present application, Figure 5 and Figure 6 As shown, in the projection of the first opening 32 corresponding to the main light-emitting device 21 and the secondary light-emitting devices 22 around it along the plane perpendicular to the display panel 001, the minimum distance between the edge of the projection of the secondary light-emitting device 22 close to the projection of the first opening 32 and the edge of the first opening 32 is x, and x>0. That is, along the direction parallel to the plane of the display panel 001, the secondary light-emitting device 22 is covered by the light shielding portion 31, and the minimum distance from the secondary light-emitting device 22 to the edge of the light shielding portion 31 is greater than 0.

[0076] By setting the sub-light emitting device 22 to be covered by the shading portion 31 and the minimum distance to the edge of the shading portion 31 to be greater than 0, it is possible to prevent the small-angle light of the sub-light emitting device 22 from being emitted from the first opening 32 and affecting the normal display of the display panel 001. And the minimum distance from the sub-light emitting device 22 to the edge of the shading portion 31 is greater than 0, so that the viewer can only see the interference light emitted by the sub-light emitting device 22 at a certain angle. And by adjusting the minimum distance x from the sub-light emitting device 22 to the edge of the shading portion 31, the viewing angle when the interference light emitted by the sub-light emitting device 22 is seen by the viewer can be adjusted, that is, the minimum anti-peeping angle of the display panel 001 can be adjusted. And this setting method can ensure that the sub-light emitting device 22 is covered by the shading portion 31 even when a process error occurs.

[0077] Figure 7 A light path diagram of light emitted by a secondary light-emitting device in a display panel provided in an embodiment of the present application.

[0078] In a technical solution corresponding to this embodiment, as Figure 7 As shown, assuming that the viewer is at a viewing angle of θ 1 When the interference light emitted by the secondary light emitting device 22 begins to be visible, the minimum anti-peeping angle of the display panel 001 is θ 1 Assume that the refractive index of the medium through which the light emitted by the secondary light emitting device 22 passes before reaching the light shielding layer 03 is n 2 , that is, the refractive index of the film layer between the light-shielding layer 03 and the light-emitting device layer 02 is n 2 Assume that the refractive index of the medium through which the light emitted by the secondary light emitting device 22 passes after exiting the light shielding layer 03 is n 1 , that is, the refractive index of the film layer on the side of the light shielding layer 03 away from the light emitting device layer 02 is n 1 According to the law of refraction, the viewer can get 1The minimum angle between the light emitted by the sub-light emitting device 22 and the direction perpendicular to the surface of the display panel 001 is θ 2 , and θ 2 satisfy:

[0079]

[0080] Please continue to refer to Figure 7 , assuming that the minimum distance between the secondary light emitting device 22 and the light shielding layer 03 is h, that is, the film thickness between the secondary light emitting device 22 and the light shielding layer 03 is h; then according to the trigonometric formula, it can be obtained:

[0081] x=h*tanθ 2

[0082] After transforming the above two formulas, we can get:

[0083]

[0084] In order to prevent the interfering light of the secondary light emitting device 22 from being seen by the viewer within the minimum anti-peeping angle, x can satisfy:

[0085]

[0086] Since there are many film layers in the display panel 001, for example, in some implementations of the present technical solution, multiple film layers may be included between the light-emitting device layer 02 and the light-shielding layer 03, and the side of the light-shielding layer 03 away from the light-emitting device layer 02 may also include multiple film layers. Some empirical values ​​may be selected for n1 and n2, for example, n1=1, n2=1.5.

[0087] The minimum anti-peeping angle can be selected according to actual needs. For example, the minimum anti-peeping angle θ 1 =Any one of 30°, 45°, 60°.

[0088] In the embodiment of the present application, the display mode of the display panel 001 includes an anti-peeping mode. In the anti-peeping mode, both the main light-emitting device 21 and the secondary light-emitting device 22 emit light. In the anti-peeping mode, the main light-emitting device 21 emits light to ensure that viewers at a normal viewing angle and / or a small viewing angle can view the normal display screen, while the secondary light-emitting device 22 emits light so that viewers at a large angle can see the interfering light emitted by the secondary light-emitting device 22, thereby playing an anti-peeping role. In addition, the distance between the secondary light-emitting device 22 and the first opening 32 can be reasonably determined by the above formula, so as to avoid the problem of light leakage of the secondary light-emitting device 22 at a small viewing angle when the secondary light-emitting device 22 emits and refracts through different film layers.

[0089] In one implementation of this embodiment, the display mode of the display panel 001 also includes a normal mode, in which the main light emitting device 21 emits light and the secondary light emitting device 22 does not emit light. In the normal mode, the main light emitting device 21 emits light to ensure that the viewer can view the normal display screen, and the secondary light emitting device 22 does not emit light to avoid interference light from being seen by the viewer as much as possible, thereby enabling the display panel 001 to display images normally.

[0090] In order to achieve effective interference of the light emitted by the secondary light-emitting device 22 with the light emitted by the main light-emitting device 21, the picture displayed by the multiple secondary light-emitting devices 22 when emitting light is different from the picture displayed by the multiple main light-emitting devices 21 when emitting light. For example, the multiple secondary light-emitting devices 22 can display a mosaic picture when emitting light, thereby interfering with the picture displayed by the main light-emitting device 21.

[0091] In a technical solution corresponding to the present embodiment, when the display panel 001 is in the anti-peeping mode, the luminance of the secondary light-emitting device 22 is greater than the luminance of the main light-emitting device 21. On the one hand, when the luminance of the secondary light-emitting device 22 is set to be brighter, the area of ​​the secondary light-emitting device 22 can be set to be smaller, thereby ensuring that the display panel 001 has a higher pixel density; on the other hand, when the luminance of the secondary light-emitting device 22 is greater than the luminance of the main light-emitting device 21, the viewer can see a brighter interference picture at a wide viewing angle, and the anti-peeping effect of the display panel 001 is better.

[0092] Figure 8 A schematic diagram of the connection between a light emitting device and a pixel circuit in a display panel provided in an embodiment of the present application is provided. Fig. 9 for Figure 8 The equivalent circuit diagram of the pixel circuit and the light-emitting device shown.

[0093] In one embodiment of the present application, Figure 8 and Fig. 9 As shown, the display panel 001 further includes a pixel circuit array layer 04, and the pixel circuit array layer 04 includes a plurality of pixel circuits 40, and the pixel circuit 40 can provide a light-emitting driving voltage or a light-emitting driving current for the light-emitting device electrically connected thereto. The plurality of pixel circuits 40 included in the pixel circuit array layer 04 include a first pixel circuit 41 and a second pixel circuit 42, and the first pixel circuit 41 is electrically connected to the main light-emitting device 21, and the second pixel circuit 42 is electrically connected to the sub-light-emitting device 22. That is, in the embodiment of the present application, the main light-emitting device 21 and the sub-light-emitting device 22 are electrically connected to different pixel circuits 40, respectively.

[0094] like Fig. 9As shown, the first pixel circuit 41 may include a light-emitting driving transistor T01, a first reset transistor T11, a second reset transistor T21, a data voltage writing transistor T31, a threshold grabbing transistor T41, a power supply voltage writing transistor T51, a light-emitting control transistor T61 and a storage capacitor C11.

[0095] One plate of the storage capacitor C1 is electrically connected to the gate of the light-emitting driving transistor T01 , and the other plate is electrically connected to the input end of the power supply voltage writing transistor T51 .

[0096] The input end of the first reset transistor T11 is connected to the first reset signal line Vref1 , and the output end is electrically connected to the gate of the light emitting driving transistor T01 , so as to reset the gate of the light emitting driving transistor T0 .

[0097] The second reset transistor T21 has an input terminal connected to the second reset signal line Vref2 and an output terminal electrically connected to the first light emitting device 21, and is used to reset the anode or cathode of the first light emitting device 21. The signals of the first reset signal line vref1 and the second reset signal line vref2 can be the same or different.

[0098] The input end of the data voltage writing transistor T31 is connected to the data line DL11, the output end is electrically connected to the input end of the light-emitting driving transistor T01, and the control end is electrically connected to the first scanning line S11; the input end of the threshold grabbing transistor T41 is electrically connected to the output end of the light-emitting driving transistor T01, the output end is electrically connected to the gate of the light-emitting driving transistor T01, and the control end is electrically connected to the first scanning line S11. The data voltage writing transistor T31 cooperates with the threshold grabbing transistor T41 to write the data voltage into the gate of the light-emitting driving transistor T01.

[0099] The control end of the power supply voltage writing transistor T51 is electrically connected to the second scan line S21 and is used to write the first power supply voltage into the input end of the light emitting driving transistor T01.

[0100] The input end of the light-emitting control transistor T61 is electrically connected to the output end of the light-emitting driving transistor T01, the output end is electrically connected to the first light-emitting device 21, and the control end is electrically connected to the second scan line S21, and is used to transmit the light-emitting driving current generated by the light-emitting driving transistor T01 to the first light-emitting device 21.

[0101] like Fig. 9As shown, the second pixel circuit 42 may include a light-emitting driving transistor T02, a first reset transistor T12, a second reset transistor T22, a data voltage writing transistor T32, a threshold grabbing transistor T42, a power supply voltage writing transistor T52, a light-emitting control transistor T62 and a storage capacitor C12. Among them, the connection mode of each transistor in the second pixel circuit 42 is basically the same as the connection mode between each transistor in the first pixel circuit 41, and will not be repeated here. In addition, in the second pixel circuit 42, the input end of the data voltage writing transistor T32 is connected to the data line DL21 and the control end of the data voltage writing transistor T32 and the threshold grabbing transistor T42 are both electrically connected to the first scan line S12; the output end of the light-emitting control transistor T62 is electrically connected to the second light-emitting device 22 and the control end of the power supply voltage writing transistor T52 and the light-emitting control transistor T62 are both electrically connected to the second scan line S22.

[0102] It should be noted that Fig. 9 Only one structure of the pixel circuit 40 is schematically shown. The pixel circuit 40 in the pixel circuit array layer 04 may also be Fig. 9 Other structures than those shown. Fig. 9 The equivalent circuit diagrams of the first pixel circuit 41 and the second pixel circuit 42 shown in the figure are the same, and the equivalent circuit diagrams of the first pixel circuit 41 and the second pixel circuit 42 may also be different.

[0103] Fig.10 for Fig. 9 A timing diagram corresponding to the equivalent circuit shown.

[0104] Combination Fig. 9 and Fig.10 In the normal mode, the data line DL11 transmits the data voltage to the data voltage writing transistor T31 in the first pixel circuit 41 and the first scanning line S11 electrically connected to the data voltage writing transistor T31 transmits an effective level signal, and the data voltage is written into the driving transistor T01 through the turned-on data voltage writing transistor T31 in the first pixel circuit 41. However, the data line DL21 and the first scanning line S12 electrically connected to the second pixel circuit 42 do not transmit an effective level signal, and the driving transistor T02 in the second pixel circuit 42 does not receive the data voltage.

[0105] In addition, in the normal mode, the power supply voltage writing transistor T51 and the light emitting control transistor T61 in the first pixel circuit 41 receive the effective level signal transmitted by the second scanning line S21, and the main light emitting device 21 receives the light emitting driving current generated by the driving transistor T01 in the first pixel circuit 41. The second scanning line S22 electrically connected to the second pixel circuit 42 does not transmit the effective level signal, and the sub-light emitting device 22 and the second pixel circuit 42 are in an electrically isolated state.

[0106] That is, in the normal mode, the main light emitting device 21 electrically connected to the first pixel circuit 41 can emit light, while the sub-light emitting device 22 electrically connected to the second pixel circuit 42 does not emit light.

[0107] Combination Fig. 9 and Fig.10 In the anti-peeping mode, the data line DL11 transmits the data voltage to the data voltage writing transistor T31 in the first pixel circuit 41, and the first scanning line S11 electrically connected to the data voltage writing transistor T31 transmits an effective level signal, then the data voltage is written into the driving transistor T01 through the data voltage writing transistor T31 turned on in the first pixel circuit 41. In addition, the data line DL21 transmits the data voltage to the data voltage writing transistor T32 in the second pixel circuit 42, and the first scanning line S12 electrically connected to the data voltage writing transistor T32 transmits an effective level signal, then the data voltage is written into the driving transistor T02 through the data voltage writing transistor T32 turned on in the second pixel circuit 42.

[0108] In addition, in the anti-peeping mode, the power supply voltage writing transistor T51 and the light-emitting control transistor T61 in the first pixel circuit 41 receive the effective level signal transmitted by the second scan line S21, and the main light-emitting device 21 receives the light-emitting driving current generated by the driving transistor T01 in the first pixel circuit 41. Moreover, the power supply voltage writing transistor T52 and the light-emitting control transistor T62 in the second pixel circuit 42 receive the effective level signal transmitted by the second scan line S22, and the sub-light-emitting device 22 receives the light-emitting driving current generated by the driving transistor T02 in the second pixel circuit 42.

[0109] That is, in the anti-peeping mode, the main light-emitting device 21 electrically connected to the first pixel circuit 41 and the sub-light-emitting device 22 electrically connected to the second pixel circuit 42 can both emit light.

[0110] In one implementation of this embodiment, Fig.10 As shown, in the anti-peeping mode, the potential of the data voltage transmitted by the data line DL11 to the data voltage writing transistor T31 in the first pixel circuit 41 is greater than the potential of the data voltage transmitted by the data line DL21 to the data voltage writing transistor T32 in the second pixel circuit 42. Then, when the display panel 001 is in the anti-peeping mode, the luminous brightness of the secondary light-emitting device 22 is greater than the luminous brightness of the main light-emitting device 21.

[0111] Fig.11 for Fig. 9 A timing diagram corresponding to the equivalent circuit shown.

[0112] In another implementation of this embodiment, combined with Fig.11 and Fig. 9 In the anti-peeping mode, the power supply voltage writing transistor T52 and the light-emitting control transistor T62 in the second pixel circuit 42 receive the valid level signal transmitted by the second scan line S22 for a longer time than the power supply voltage writing transistor T51 and the light-emitting control transistor T61 in the first pixel circuit 41 receive the valid level signal transmitted by the second scan line S21. Then, when the display panel 001 is in the anti-peeping mode, the light-emitting brightness of the secondary light-emitting device 22 is greater than the light-emitting brightness of the main light-emitting device 21.

[0113] Fig.12 An equivalent circuit diagram of a pixel circuit and a light-emitting device in a display panel provided in an embodiment of the present application, Fig.13 for Fig.12 A timing diagram corresponding to the equivalent circuit shown.

[0114] In one embodiment of the present application, Fig.12 As shown, the display panel 001 further includes a pixel circuit array layer 04 , and the pixel circuit array layer 04 includes a plurality of pixel circuits 40 and a mode control module 40 ′.

[0115] The mode control module 40' is used to control the light-emitting state of the secondary light-emitting device 22 according to the display mode of the display panel 001. Specifically, in the normal mode, the mode control module 40' controls the secondary light-emitting device 22 to emit light; in the anti-peeping mode, the mode control module 40' controls the secondary light-emitting device 22 not to emit light.

[0116] The pixel circuit 40 is electrically connected to the main light emitting device 21 , and the pixel circuit 40 is also electrically connected to the sub-light emitting device 22 through the mode control module 40 ′.

[0117] The specific structure of the pixel circuit 40 in this embodiment may be the same as the specific structures of the first pixel circuit 41 and the second pixel circuit 42 in the previous embodiment, and will not be described again. In this embodiment, the mode control module 40 ′ may be an additional structure independent of the pixel circuit 40 .

[0118] Please combine Fig.12 and Fig.13 In the anti-peeping mode, the pixel circuit 40 responds to the effective level signal (low level) provided by the second scan line S21, and transmits the driving current converted by the driving transistor T01 to the main light-emitting device 21, driving the main light-emitting device 21 to emit light. At the same time, the mode control module 40' controls the transmission path between the pixel circuit 40 and the secondary light-emitting device 22 to be turned on, and then synchronously transmits the driving current converted by the driving transistor T01 to the secondary light-emitting device 22, so as to drive the secondary light-emitting device 22 to emit light simultaneously.

[0119] Further, see Fig.12The mode control module 40' may specifically include a sub-light emitting control transistor T61', which is electrically connected between the driving transistor T01 and the sub-light emitting device 22, and a control end of the sub-light emitting control transistor T61' is electrically connected to the third scan line S21'.

[0120] Please continue to combine Fig.12 and Fig.13 In the normal mode, the pixel circuit 40 responds to the effective level signal (low level) provided by the second scan line S21, and transmits the driving current converted by the driving transistor T01 to the main light-emitting device 21, driving the main light-emitting device 21 to emit light. The mode control module 40' controls the transmission path between the pixel circuit 40 and the sub-light-emitting device 22 to be disconnected, thereby controlling the driving current converted by the driving transistor T01 to not flow to the sub-light-emitting device 22, and controlling the sub-light-emitting device 22 not to emit light.

[0121] Based on the above structure, in the anti-peeping mode, the secondary light-emitting device 22 and the main light-emitting device 21 share the driving current provided by the same pixel circuit 42 to emit light. There is no need to set an additional circuit structure for providing the secondary light-emitting device 22 with a driving current, which simplifies the circuit design of the display panel 001 and the space occupied by the circuit in the display panel 001, and also helps to improve the pixel density.

[0122] Fig.14 An equivalent circuit diagram of a pixel circuit and a light-emitting device in a display panel provided in an embodiment of the present application.

[0123] In one embodiment of the present application, the display panel 001 further includes a pixel circuit array layer 04 , and the pixel circuit array layer 04 includes a plurality of pixel circuits 40 and a mode control module 40 ′.

[0124] The mode control module 40' is used to control the light-emitting state of the secondary light-emitting device 22 according to the display mode of the display panel 001. Specifically, in the normal mode, the mode control module 40' controls the secondary light-emitting device 22 to emit light; in the anti-peeping mode, the mode control module 40' controls the secondary light-emitting device 22 not to emit light.

[0125] The pixel circuit 40 includes a driving transistor T01, a light-emitting control transistor T61, and a secondary light-emitting control transistor T61'. The light-emitting control transistor T61 is electrically connected between the driving transistor T01 and the main light-emitting device 21, the secondary light-emitting control module T61' is electrically connected between the driving transistor T01 and the secondary light-emitting device 22, and the control end of the secondary light-emitting control transistor T61' is electrically connected to the third scanning line S21'. The mode control module 40' is multiplexed with the secondary light-emitting control transistor T61'. In this configuration, the mode control module 40' can be multiplexed as the secondary light-emitting control transistor T61' inside the pixel circuit 40.

[0126] Combination Fig.14 and Fig.13 In the anti-peeping mode, the light-emitting control transistor T61 controls the driving current converted by the driving transistor T01 to be transmitted to the main light-emitting device 21, driving the main light-emitting device 21 to emit light; at the same time, the secondary light-emitting control transistor T61' controls the driving current converted by the driving transistor T01 to be transmitted to the secondary light-emitting device 22, driving the auxiliary secondary light-emitting device 22 to emit light at the same time.

[0127] Combination Fig.14 and Fig.13 In the normal mode, the light-emitting control transistor T61 controls the driving current converted by the driving transistor T01 to be transmitted to the main light-emitting device 21, driving the main light-emitting device 21 to emit light; while the secondary light-emitting control transistor T61' controls the driving current converted by the driving transistor T01 not to flow into the secondary light-emitting device 22, so as to control the secondary light-emitting device 22 not to emit light.

[0128] Based on the above structure, in the anti-peeping mode, the auxiliary light-emitting element 22 and the main light-emitting element 21 still share the driving current provided by the same pixel circuit 40 to emit light, which simplifies the circuit design of the display panel 001 and helps to improve the pixel density.

[0129] Fig.15 A schematic diagram of a main light emitting device and a sub-light emitting device in a display panel provided in an embodiment of the present application, Fig.16 A schematic diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0130] In one embodiment of the present application, Fig.15 and Fig.16 As shown, the main light-emitting device 21 and the secondary light-emitting device 22 can both be organic light-emitting devices. The main light-emitting device 21 includes an anode 211, a cathode 212 and an organic light-emitting layer 213 located therebetween, and the secondary light-emitting device 22 includes an anode 221, a cathode 222 and an organic light-emitting layer 223 located therebetween.

[0131] Among them, Fig.15 and Fig.16 As shown, the cathode 212 of the main light emitting device 21 is electrically connected to the cathode 222 of the secondary light emitting device 22, and the anode 211 of the main light emitting device 21 is electrically insulated from the anode 221 of the secondary light emitting device 22. The main light emitting device 21 and the secondary light emitting device 22 can be controlled separately.

[0132] In one implementation of this embodiment, Fig.15 As shown, the organic light emitting layer 213 of the main light emitting device 21 and the surrounding sub-light emitting device 22 are independent structures. Fig.15As shown, the display panel 001 further includes a pixel definition layer 06, and the organic light-emitting layer 213 of the main light-emitting device 21 and the organic light-emitting layer 223 of the surrounding sub-light-emitting device 22 are respectively arranged in different openings of the pixel definition layer 06. This implementation method can flexibly design the main light-emitting device 21 and the sub-light-emitting device 22.

[0133] In one implementation of this embodiment, Fig.16 As shown in FIG. 1 , the main light emitting device 21 and the organic light emitting layer 213 of the surrounding sub-light emitting device 22 are an integrated structure. Fig.16 As shown, the display panel 001 further includes a pixel definition layer 06, and the organic light emitting layer 213 of the main light emitting device 21 and the organic light emitting layer 223 of the surrounding sub-light emitting device 22 are arranged in the same opening of the pixel definition layer 06. This implementation method does not require high process accuracy and is easy to implement.

[0134] Fig.17 A schematic projection diagram of a main light emitting device and a secondary light emitting device in a display panel provided in an embodiment of the present application, Fig.18 A schematic projection diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0135] In one embodiment of the present application, Fig.17 As shown, the secondary light-emitting device 22 surrounds the main light-emitting device 21 , and the periphery of the main light-emitting device 21 is a continuous secondary light-emitting device 22 surrounding the main light-emitting device 21 , that is, the secondary light-emitting device 22 on the periphery of the main light-emitting device 21 is a ring structure surrounding the main light-emitting device 21 .

[0136] In one embodiment of the present application, Fig.18 As shown, a plurality of secondary light-emitting devices 22 are arranged around the main light-emitting device 21. The periphery of the main light-emitting device 21 includes a plurality of secondary light-emitting devices 22 arranged at intervals, and the arrangement path of at least some of the secondary light-emitting devices 22 surrounds the main light-emitting device 21, that is, the arrangement path of the plurality of secondary light-emitting devices 22 arranged at intervals around the main light-emitting device 21 is a ring structure surrounding the main light-emitting device 21.

[0137] When the secondary light emitting device 22 surrounds the main light emitting device 21 or a plurality of secondary light emitting devices 22 are arranged around the main light emitting device 21, the main light emitting device 21 is surrounded by secondary light emitting devices 22. When the display panel 001 is in the anti-peeping mode, the interfering light emitted by the secondary light emitting device 22 can be basically seen at a wide viewing angle in all directions of the display panel 001, that is, the display panel 001 can basically achieve a 360° anti-peeping effect.

[0138] Fig.19A schematic projection diagram of a main light emitting device and a secondary light emitting device in a display panel provided in an embodiment of the present application, Fig. 20 A schematic projection diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0139] In one implementation of this embodiment, Fig.19 and Fig. 20 As shown, the periphery of the main light emitting device 21 includes at least two secondary light emitting devices 22 with different distances from the main light emitting device 21 .

[0140] In this implementation, if Fig.19 As shown, when the secondary light-emitting device 22 surrounds the primary light-emitting device 21 , the periphery of the primary light-emitting device 21 may include a plurality of circles of secondary light-emitting devices 22 in a nested ring structure.

[0141] In this implementation, if Fig. 20 As shown, when a plurality of sub-light emitting devices 22 surround the main light emitting device 21 , the arrangement path of the plurality of sub-light emitting devices 22 outside the main light emitting device 21 forms a multi-circle nested ring structure.

[0142] By arranging a plurality of secondary light emitting devices 22 at different distances from the main light emitting device 21 on the periphery of the main light emitting device 21, viewers can see interference light with greater intensity at different angles and wide viewing angles, thereby effectively improving the anti-peeping effect.

[0143] One solution is that among at least two secondary light emitting devices 22 disposed around the main light emitting device 21 at different distances from the main light emitting device 21, the secondary light emitting device 22 that is farther away from the main light emitting device 21 has a higher light brightness, so as to compensate for the fact that the further away the secondary light emitting device 22 is from the main light emitting device 21, the more the light emitted from the first opening 32 above the main light emitting device 21 is reduced.

[0144] Fig.21 A schematic diagram of a projection of a display panel provided in an embodiment of the present application, Fig. 22 for Fig.21 A schematic projection diagram of a main light emitting device and a secondary light emitting device in a display panel is shown.

[0145] In one embodiment of the present application, Fig.21 and Fig. 22 As shown, the secondary light emitting device 22 is located on opposite sides of the primary light emitting device 21. Fig.21 and Fig. 22As shown, the secondary light emitting device 22 is arranged on the left and right sides of the main light emitting device 21. When the display panel 001 is in the anti-peeping mode, the interference light emitted by the secondary light emitting device 22 can be basically seen at the left and right wide viewing angles of the display panel 001, that is, the display panel 001 can achieve the left and right anti-peeping effect. In addition, the secondary light emitting device 22 can also be arranged on the upper and lower sides of the main light emitting device 21, so that the display panel 001 can achieve the top and bottom anti-peeping effect.

[0146] Fig.23 A schematic projection diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0147] In one implementation of this embodiment, Fig.23 As shown, the periphery of the main light emitting device 21 includes at least two secondary light emitting devices 22 at different distances from the main light emitting device 21. Fig.23 As shown, the left side of the main light emitting device 21 includes two sub-light emitting devices 22 at different distances from the main light emitting device 21 , and the right side of the main light emitting device 21 includes two sub-light emitting devices 22 at different distances from the main light emitting device 21 .

[0148] By arranging a plurality of secondary light emitting devices 22 at different distances from the main light emitting device 21 on the periphery of the main light emitting device 21, viewers can see interference light with greater intensity at different angles and wide viewing angles, thereby effectively improving the anti-peeping effect.

[0149] In addition, in this embodiment, the secondary light-emitting device 22 located on one side of the main light-emitting device 21 includes a plurality of secondary light-emitting devices 22 that are equidistant from the main light-emitting device 21 , that is, a plurality of secondary light-emitting devices 22 that are spaced apart and equidistant from the main light-emitting device 21 can be arranged on the same side of the main light-emitting device 21 .

[0150] Fig.24 A schematic diagram of the projection of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0151] In one embodiment of the present application, Fig.24 As shown, the edge of the main light emitting device 21 close to the secondary light emitting device 22 includes a first concavo-convex structure, and the edge of the secondary light emitting device 22 close to the main light emitting device 21 includes a second concavo-convex structure. Then, as the viewing angle of the viewer gradually increases, the large-angle light emitted by the edge of the main light emitting device 21 close to the secondary light emitting device 22 gradually decreases, and the large-angle light emitted by the edge of the secondary light emitting device 22 close to the main light emitting device 21 gradually increases, which can avoid the problem of the viewer seeing a sudden change in brightness when the viewing angle changes from a large viewing angle.

[0152] Furthermore, if Fig.24As shown, the concave part of the first concave-convex structure surrounds the convex part of the second concave-convex structure, and the concave part of the second concave-convex structure surrounds the convex part of the first concave-convex structure. It can be understood that the adjacent edges of the main light-emitting device 21 and the secondary light-emitting device 22 are parallel and the concave-convex parts respectively included in the two are meshed with each other, that is, the edge of the main light-emitting device 21 close to the secondary light-emitting device 22 is a curve or a broken line structure, and the extension path of the edge of the secondary light-emitting device 22 close to the main light-emitting device 21 is parallel to the extension path of the edge of the main light-emitting device 21 close to the secondary light-emitting device 22.

[0153] Then there will be no sudden change in the light emitting position between the main light emitting device 21 and the secondary light emitting devices 22 around it. Fig.24 As shown, the light emitting area on the left side of the main light emitting device 21 is reduced while the light emitting area on the right side of the secondary light emitting device 22 is increased. This can further avoid the problem of the viewer seeing a sudden change in brightness when the viewing angle changes from a large viewing angle.

[0154] Among them, Fig.24 As shown, the profile of the concave portion of the first concave-convex structure may be the same as the profile of the convex portion of the second concave-convex structure, and the profile of the concave portion of the second concave-convex structure may be the same as the profile of the convex portion of the first concave-convex structure. Fig.24 As shown, the concave contour of the first concave-convex structure and the convex contour of the second concave-convex structure can both be rectangular, and the concave contour of the second concave-convex structure and the convex contour of the first concave-convex structure can both be rectangular. In addition, the concave contour of the first concave-convex structure and the convex contour of the second concave-convex structure can both be at least one of a triangle, a trapezoid, and a semicircle, and the concave contour of the second concave-convex structure and the convex contour of the first concave-convex structure can both be at least one of a triangle, a trapezoid, and a semicircle.

[0155] Fig.25 A schematic projection diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0156] In one embodiment of the present application, Fig.25 As shown, the plurality of main light emitting devices 21 include a first main light emitting device 21a and a second main light emitting device 21b, and the area of ​​the second main light emitting device 21b is larger than the area of ​​the first main light emitting device 21a. The area of ​​the secondary light emitting device 21 disposed around the second main light emitting device 21b is larger than the area of ​​the secondary light emitting device 21 disposed around the first main light emitting device 21a.

[0157] For example, Fig.25As shown, at least one secondary light emitting device 22 around the first main light emitting device 21a is a first light emitting device 22a, and at least one secondary light emitting device 22 around the second main light emitting device 21b is a second light emitting device 22b. The area of ​​the second main light emitting device 21b is larger than the area of ​​the first main light emitting device 21a, and the area of ​​the second light emitting device 22b is larger than the area of ​​the first light emitting device 22a.

[0158] In this embodiment, the area of ​​the secondary light emitting device 22 outside the main light emitting device 21 with a larger area is set to be larger, so as to ensure the interference effect of the light emitted by the secondary light emitting device 22 .

[0159] In this embodiment, the plurality of main light emitting devices 21 may include a red main light emitting device, a blue main light emitting device and a green main light emitting device, and the main light emitting device 21 may include an organic light emitting layer. Considering the luminous efficiency of organic light emitting layers of different colors, the sensitivity of human eyes to different colors, etc., the area of ​​the blue main light emitting device is usually larger than that of the green main light emitting device, and the area of ​​the green main light emitting device is larger than that of the red main light emitting device. Then, any two of the red main light emitting device, the blue main light emitting device and the green main light emitting device, the one with a larger area may be the first main light emitting device 21a, and the one with a smaller area may be the second main light emitting device 21b.

[0160] Fig.26 A schematic projection diagram of a main light-emitting device and a sub-light-emitting device in a display panel provided in an embodiment of the present application.

[0161] In one embodiment of the present application, Fig.26 As shown, the plurality of main light emitting devices 21 include a first main light emitting device 21a and a second main light emitting device 21b, the width of the first main light emitting device 21a along the first direction X1 is a1, the width of the second main light emitting device 21b along the first direction X1 is b1, and a1<b1. That is, the width of the first main light emitting device 21a along the first direction X is smaller than the width of the second main light emitting device 21b along the first direction X1.

[0162] And in the first direction X1, the width of the secondary light-emitting device 22 around the first main light-emitting device 21a is a2, and the width of the secondary light-emitting device 22 around the second main light-emitting device 21b is b2, that is, the width of the first light-emitting device 22a along the first direction X1 is a2, and the width of the second light-emitting device 22b along the first direction X1 is b2.

[0163] In this embodiment, (a2 / a1)>(b2 / b1). That is, the ratio of the width of the first light emitting device 22a along the first direction X1 to the width of the first main light emitting device 21a along the first direction X1 is greater than the ratio of the width of the second light emitting device 22b along the first direction X1 to the width of the second main light emitting device 21b along the first direction X1. It can be understood that the secondary light emitting device 22 with a larger width along the first direction X1 is arranged around the main light emitting device 21 with a smaller width along the first direction X1.

[0164] When the width of the main light-emitting device 21 along the first direction X1 is small, the periphery of the main light-emitting device 21 along the first direction X1 has a larger space for arranging the secondary light-emitting device 22. Arranging the secondary light-emitting device 22 with a larger width in this space can achieve better interference and anti-peeping effects.

[0165] It should be noted that Fig. 22 The first direction X1 is shown as the left-right direction, but the first direction X1 may also be Fig. 22 The up and down direction or other direction indicated.

[0166] In addition, in a technical solution corresponding to this embodiment, the area of ​​the first main light emitting device 21a is S1a, the area of ​​the second main light emitting device 21b is S1b, and S1a<S1b. That is, the area of ​​the first main light emitting device 21a is smaller than the area of ​​the second main light emitting device 21b.

[0167] And the area of ​​the secondary light emitting device 22 around the first main light emitting device 21a is S2a, and the area of ​​the secondary light emitting device 22 around the second main light emitting device 21b is S2b, that is, the area of ​​the first light emitting device 22a is S2a, and the area of ​​the second light emitting device 22b is S2b. And S2a<S2b. That is, the area of ​​the first light emitting device 22a is smaller than the area of ​​the second light emitting device 22b.

[0168] In the present technical solution, (S2a / S1a)>(S2b / S1b). That is, the ratio of the area of ​​the first light-emitting device 22a to the area of ​​the first main light-emitting device 21a is greater than the ratio of the area of ​​the second light-emitting device 22b to the area of ​​the second main light-emitting device 21b. It can be understood that although the area of ​​the secondary light-emitting device 22 arranged outside the main light-emitting device 21 with a smaller area is also smaller, the ratio of the area of ​​the secondary light-emitting device 22 with a smaller area to the area of ​​the main light-emitting device 21 with a smaller area is larger.

[0169] When the area of ​​the main light emitting device 21 is small, there is a larger space around the main light emitting device 21 for arranging the secondary light emitting device 22. Arranging the secondary light emitting device 22 with a relatively larger area in the space can achieve better interference and anti-peeping effects.

[0170] Fig. 27 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application.

[0171] In one embodiment of the present application, Fig. 27 As shown, the display panel 001 further includes a filter layer 05, and the filter layer 05 is disposed on a side of the light emitting device layer 02 away from the substrate 01. The filter layer 05 includes a black matrix 51 and a primary color resist 52, and the primary color resist 52 is filled between adjacent black matrices 51.

[0172] like Fig. 27 As shown, the black matrix 51 can reuse the light shielding portion 31 of the light shielding layer 03 , and the first opening 32 is filled with the main color resist 52 .

[0173] It should be noted that, in the preparation process of the filter layer 05, the black matrix 51 is usually prepared first, and then the color resist is prepared. Considering the process error, the area of ​​the color resist is usually larger than the area of ​​the opening it fills, and the color resist outside the opening is also included in the color resist continuous with the main color resist 52, but since this part of the color resist overlaps with the black matrix 51 and is not light-transmissive, the color resist involved in this application is specifically the color resist filled in the opening. The main color resist 52 is filled in the first opening 32, which does not exclude the color resist connected to the main color resist 52 outside the first opening 32, but this part of the color resist is light-impermeable and can be ignored.

[0174] Since the first opening 32 exposes at least part of the main light emitting device 21 , the main color resist 52 also covers at least part of the main light emitting device 21 , and the light emitted by the main light emitting device 21 becomes light with purer chromaticity after passing through the main color resist 52 .

[0175] Fig.28 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application.

[0176] In one embodiment of the present application, Fig.28 As shown, the thickness of the area near the secondary light-emitting device 22 in the primary color resist 52 is less than the thickness in the middle area of ​​the primary color resist 52. That is, the primary color resist 52 is thick in the middle and thin at both sides, which can be understood as the edge position of the primary color resist 52 is thinned.

[0177] When at least part of the interference light emitted by the secondary light emitting device 22 that needs to be seen is emitted from the first opening 32, the angle at which the part of the interference light enters the first opening 32 is large, and the part of the interference light is mainly emitted from the edge of the primary color resist 52. By thinning the edge of the primary color resist 52, the brightness of the interference light emitted by the secondary light emitting device 22 when emitted from the edge of the primary color resist 52 can be increased, thereby improving the interference effect.

[0178] In one embodiment of the present application, Figure 1 and Fig.21 As shown, the light shielding portion 31 between adjacent first openings 32 is a continuous structure, which can be understood as no hollowing portion is provided in the light shielding portion 31 between adjacent first openings 32. It should be noted that the light shielding portion 31 between adjacent first openings 32 can be provided with a via hole for electrically connecting the upper and lower conductive structures, but no hollowing portion for filling the color resist is provided.

[0179] That is, in this embodiment, the interference light of the secondary light emitting device 22 is emitted from the first opening 32. Figure 1 The interference light emitted by the secondary light-emitting device 22 on the left side of the main light-emitting device 21 is transmitted to the right and emitted from the first opening 32 above the main light-emitting device 21, and the interference light emitted by the secondary light-emitting device 22 on the right side of the main light-emitting device 21 is transmitted to the left and emitted from the first opening 32 above the main light-emitting device 21.

[0180] In this embodiment, the first opening 32 is reused as an opening for emitting the interference light emitted by the secondary light-emitting device 22. Therefore, there is no need to open an additional hollow portion in the light-shielding layer 03 to emit the interference light emitted by the secondary light-emitting device 22, which can avoid opening too many openings in the light-shielding layer 03 to increase the reflectivity of the display panel 001.

[0181] In a technical solution corresponding to this implementation, if Figure 1 and Fig.21 As shown, the first opening 32 covers the main light emitting device 21, that is, the first opening 32 completely exposes the main light emitting device 21. By setting the first opening 32 to completely expose the main light emitting device 21, on the one hand, the light output of the main light emitting device 21 can be increased, and the brightness of the display panel 001 can be improved; on the other hand, the area of ​​the first opening 32 can be increased, thereby increasing the light output of the secondary light emitting device 22 and improving the interference effect of the secondary light emitting device 22.

[0182] Furthermore, if Figure 1 and Fig.21 As shown, in the projection of the main light emitting device 21 and the corresponding first opening 32 along the plane perpendicular to the display panel 001, the projection area of ​​the main light emitting device 21 is larger than the projection area of ​​the corresponding first opening 32. That is, the main light emitting device 21 is not only covered by the first opening 32 located on the light emitting side thereof, but the first opening 32 also covers a part of the periphery of the main light emitting device 21.

[0183] By further increasing the area of ​​the first opening 32 , the light output amount of the interfering light emitted by the secondary light emitting device 22 can be guaranteed, the interfering brightness of the interfering light can be increased, and the anti-peeping effect of the display panel 001 can be effectively improved.

[0184] It should be noted that, although the area of ​​the first opening 32 is increased to ensure the amount of light emitted by the secondary light-emitting device 22, the distance from the projection of the secondary light-emitting device 22 to the edge of the projection of the first opening 32 in a plane parallel to the surface where the display panel 001 is located can still be greater than 0 to avoid the secondary light-emitting device 22 affecting the normal display of the display panel 001.

[0185] In this embodiment, since the light emitted by the main light emitting device 21 and the secondary light emitting devices 22 around it are emitted from the same first opening 32 in the anti-peeping mode, the light emitted by the main light emitting device 21 and the secondary light emitting devices 22 around it are emitted after being filtered by the same primary color resist 52. Therefore, the main light emitting device 21 and the secondary light emitting device 22 should emit light of the same color to ensure that the light emitted by both can pass through the primary color resist 52 of the same color.

[0186] In addition, the main color resistor 52 can be set as follows Fig.28 The structure shown as being thick in the middle and thin on both sides will not be described in detail here.

[0187] Fig.29 A schematic diagram of a display panel provided in an embodiment of the present application, Fig.30 For along Fig.29 Schematic diagram of the cross section along the N1-N2 direction.

[0188] In one embodiment of the present application, Fig.29 and Fig.30 As shown, the light shielding layer 03 further includes a second opening 33, and the second opening 33 is located around the first opening 32. That is, among the multiple hollow portions included in the light shielding layer 03, some of the hollow portions are the first opening 32 and some of the hollow portions are the second opening 33.

[0189] And the corresponding relationship between the second opening 33 and the first opening 32 may be the same as the corresponding relationship between the main light emitting device 21 and the secondary light emitting device 22. For example, when the periphery of the main light emitting device 21 includes the secondary light emitting device 22 surrounding the main light emitting device 21, the periphery of the first opening 32 may also include the second opening 33 surrounding the first opening 32. For example, when the opposite sides of the main light emitting device 21 include the secondary light emitting device 22 adjacent to the main light emitting device 21, the opposite sides of the first opening 32 may also include the second opening 33 adjacent to the first opening 32. The second opening 33 is mainly used to transmit the interference light emitted by the secondary light emitting device 22.

[0190] It should be noted that, although the second opening 33 is provided in the light shielding layer 03, the secondary light emitting device 22 is still covered by the light shielding portion 31, that is, the second opening 33 and the secondary light emitting device 22 do not overlap. When both the main light emitting device 21 and the secondary light emitting device 22 are turned on in the anti-peeping mode, the interference light emitted by the secondary light emitting device 22 is prevented from being seen by the viewer at a narrow viewing angle or a normal viewing angle.

[0191] Fig.31 A schematic diagram of light emission of a display panel in an anti-peeping mode provided in an embodiment of the present application, Fig.32 A schematic diagram of light emission of a display panel in a normal mode provided in an embodiment of the present application.

[0192] Please refer to Fig.31 When both the main light emitting device 21 and the secondary light emitting device 22 emit light, that is, when the display mode of the display panel is the anti-peeping mode, at the normal viewing angle and the small viewing angle, the small-angle light L1 emitted by the main light emitting device 21 can be viewed through the first opening 32 in the light shielding layer 03, but the small-angle light L2 emitted by the secondary light emitting device 22 is blocked by the light shielding portion 31 of the light shielding layer 03 and cannot be viewed. At a large viewing angle, when the large-angle light L1' emitted by the main light emitting device 21 is viewed through the first opening 32 in the light shielding layer 03, the large-angle light L2' emitted by the secondary light emitting device 22 can also be viewed through the first opening 32 and / or the second opening 33 in the light shielding layer 03. By setting the second opening 33, the light output of the interfering light of the secondary light emitting device 22 can be increased, thereby increasing its interference effect.

[0193] Please refer to Fig.32 When the main light-emitting device 21 emits light and the secondary light-emitting device 22 does not emit light, that is, when the display mode of the display panel is the normal mode, the viewer can only see the light L1 and L1' emitted by the main light-emitting device 21 regardless of whether it is at a large viewing angle or a small viewing angle, that is, the viewer can normally view the image displayed by the display panel 001 at different viewing angles.

[0194] In a technical solution corresponding to this embodiment, Fig.29 As shown, in the projection of the secondary light emitting device 22, the main light emitting device 21 and the second opening 33 along the plane perpendicular to the display panel 001, the projection of the second opening 33 is located on the side of the projection of the secondary light emitting device 22 away from the projection of the main light emitting device 21. Figure 30-Figure 32 As shown, the second opening 33 is located at a side of the area where the secondary light emitting device 22 is located away from the area where the primary light emitting device 21 is located.

[0195] Then the secondary light emitting device 22 includes the second opening 33 on one side and the first opening 32 on the other side, for example, Fig.31 and Fig.32As shown, one of the first opening 32 and the second opening 33 is disposed at the upper left of the sub-light emitting device 22 , and the other is disposed at the upper right of the sub-light emitting device 22 .

[0196] In the present technical solution, as described above, in order to prevent the interference light emitted by the secondary light emitting device 22 from being viewed at a smaller viewing angle, the secondary light emitting device 22 does not overlap with the second opening 33. In the present technical solution, the second opening 33 is disposed on a side of the secondary light emitting device 22 away from the main light emitting device 21, so that the distance between the secondary light emitting device 22 and the main light emitting device 21 can be relatively small, thereby increasing the pixel density of the display panel 001.

[0197] Fig.33 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0198] In addition, since the second opening 33 is located on the side of the secondary light emitting device 22 away from the main light emitting device 21, in order to avoid the second openings 33 between different main light emitting devices 21 occupying too much area and affecting the pixel density of the display panel, Fig.33 As shown, adjacent sub-light emitting devices 22 may share the second opening 33 , that is, one second opening 33 may be located between two sub-light emitting devices 22 and used to transmit interference light emitted by the two sub-light emitting devices 22 .

[0199] And, if Fig.33 As shown, two secondary light emitting devices 22 respectively located around two adjacent primary light emitting devices 21 can share the second opening 33 .

[0200] Fig.34 A schematic diagram of the relationship between a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0201] In a technical solution corresponding to this embodiment, as Fig.34 As shown, in the projection of the secondary light-emitting device 22 and the corresponding second opening 33 along a plane perpendicular to the display panel 001, the minimum distance between the edge of the projection of the secondary light-emitting device 22 close to the projection of the second opening 33 and the edge of the projection of the second opening 33 close to the secondary light-emitting device 22 is y, and as mentioned above, y>0.

[0202] In addition, y satisfies:

[0203]

[0204] Among them, θ 1 is the minimum anti-peeping angle of the display panel 001, n 1 is the refractive index of the film layer on the side of the light shielding layer 03 away from the light emitting device layer 02, n 2is the refractive index of the film layer between the light-shielding layer 03 and the light-emitting device layer 02 , and h is the minimum distance between the secondary light-emitting device 22 and the light-shielding layer 03 .

[0205] The derivation process of the formula satisfied by y can be referred to Figure 7 The derivation process of the corresponding embodiment will not be repeated here.

[0206] Through the above formula, the minimum distance between the projection of the secondary light emitting device 22 and the projection of the second opening 33 can be reasonably designed according to the requirements of the display panel 001 for the anti-peeping angle.

[0207] Fig.35 A schematic projection diagram of a light emitting device and a light shielding layer in a display panel provided in an embodiment of the present application, Fig.36 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0208] In a technical solution corresponding to this embodiment, as Fig.35 and Fig.36 As shown, the secondary light emitting device 22 surrounds the primary light emitting device 21 , and the second opening 33 surrounds the first opening 32 .

[0209] like Fig.35 As shown, the second opening 33 surrounds the first opening 32, and the periphery of the first opening 32 is a continuous second opening 33 surrounding the first opening 32, that is, the second opening 33 around the first opening 32 is a ring-shaped structure surrounding the first opening 32. By setting the second opening 33 as a ring-shaped structure, the light transmission area of ​​the second opening 33 can be increased.

[0210] And, if Fig.35 As shown, the secondary light emitting device 22 surrounds the primary light emitting device 21. In addition, a plurality of secondary light emitting devices 22 may also be arranged around the primary light emitting device 21.

[0211] like Fig.36 As shown, a plurality of second openings 33 are arranged around the first opening 32, and the periphery of the first opening 32 includes a plurality of second openings 33 arranged at intervals, and the arrangement path of at least some of the second openings 33 surrounds the first opening 32, that is, the arrangement path of the plurality of second openings 33 arranged at intervals around the first opening 32 is a ring structure surrounding the first opening 32. By arranging the plurality of second openings 33 in the light shielding layer 03 to have intervals between each other, the light shielding portions 31 are included between adjacent second openings 33, and the light shielding portions 31 in the light shielding layer 03 can be a whole-surface connected structure, thereby increasing the reliability of the light shielding portions 31.

[0212] And, if Fig.36As shown, a plurality of sub-light emitting devices 22 may be arranged around the main light emitting device 21. In addition, the sub-light emitting devices 22 may also surround the main light emitting device 21.

[0213] It should be noted that when the periphery of the main light-emitting device 21 includes a multi-circle nested ring structure or a secondary light-emitting device 22 whose arrangement path is a ring structure, the shading layer 03 may also include a second opening 33 of a multi-circle nested ring structure or a second opening 33 of a ring structure whose arrangement path is a ring structure.

[0214] In a technical solution corresponding to this embodiment, as Fig.35 and Fig.36 As shown, in the projection of the main light emitting device 21 and the corresponding first opening 32 along the plane perpendicular to the display panel 001, the projection area of ​​the main light emitting device 21 is larger than the projection area of ​​the corresponding first opening 32. By setting the first opening 32 to have a larger area, the light output amount of the interfering light emitted by the secondary light emitting device 22 can be guaranteed, the interfering brightness of the interfering light can be increased, and the anti-peeping effect of the display panel 001 can be effectively improved.

[0215] Fig.37 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0216] In a technical solution corresponding to this embodiment, Fig.37 As shown, in the projection of the first opening 32 and the main light emitting device 21 along the plane perpendicular to the display panel, the projection area of ​​the first opening 32 is less than or equal to the projection area of ​​the main light emitting device 21. That is, the first opening 32 only exposes a part of the main light emitting device 21. On the one hand, the amount of light emitted from the secondary light emitting device 22 from the first opening 32 can be reduced, and the risk of the secondary light emitting device 22 emitting light from the first opening 32 at a smaller viewing angle can be reduced; on the other hand, reducing the area of ​​the first opening 32 can reduce the reflection of the display panel 001 to the external light.

[0217] Fig.38 A schematic projection diagram of a light emitting device and a light shielding layer in a display panel provided in an embodiment of the present application, Fig.39 A schematic projection diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0218] In a technical solution corresponding to this embodiment, as Fig.38 and Fig.39 As shown, at least part of the edge of the second opening 33 includes a third concavo-convex structure. Since the second opening 33 is usually a slender structure, diffraction phenomenon is easily generated. The diffraction problem can be alleviated by setting at least part of the edge of the second opening 33 as a concavo-convex structure.

[0219] For example, Fig.38 and Fig.39 As shown, the two opposite edges of the second opening 33 are both third concavo-convex structures. Moreover, the third concavo-convex structure included in the edge of the second opening 33 is formed by designing the edges of the light shielding parts 31 on both sides of the second opening 33 toward the second opening 33 as concavo-convex structures. In addition, the concavo-convex structures respectively included in the light shielding parts 31 on both sides of the second opening can mesh with each other.

[0220] The concave portion contour and the convex portion contour of the third concave-convex structure are at least one of a rectangle, a triangle, a trapezoid, and a semicircle.

[0221] In an implementation method corresponding to the present technical solution, if Fig.38 As shown, the edge of the secondary light emitting device 22 facing the adjacent second opening 33 may be a smooth structure.

[0222] In an implementation method corresponding to the present technical solution, if Fig.39 As shown, the edge of the secondary light emitting device 22 facing the adjacent second opening 33 may be a concave-convex structure.

[0223] Fig.40 A schematic diagram of a light emitting device and a filter layer in a display panel provided in an embodiment of the present application, Fig.41 A schematic diagram of a light-emitting device and a filter layer in a display panel provided in an embodiment of the present application.

[0224] In a technical solution corresponding to this embodiment, as Fig.40 and Fig.41 As shown, the display panel 001 further includes a filter layer 05, and the filter layer 05 is disposed on a side of the light emitting device layer 02 away from the substrate 01. The filter layer 05 includes a black matrix 51, a primary color resist 52, and a secondary color resist 53, and the primary color resist 52 and the secondary color resist 53 are filled between adjacent black matrices 51.

[0225] like Fig.40 and Fig.41 As shown, the black matrix 51 can reuse the light shielding portion 31 of the light shielding layer 03, so the first opening 32 is filled with the primary color resist 52 and the second opening 33 is filled with the secondary color resist 53. That is, along the direction perpendicular to the surface of the display panel 001, the primary color resist 52 overlaps with the first opening 32 and the secondary color resist 53 overlaps with the second opening 33.

[0226] It should be noted that the light color of the main light emitting device 21 overlapping the same first opening 32 is the same as the color of the main color resist 52 ; the light color of the secondary light emitting device 22 corresponding to the second opening 33 is the same as the color of the secondary color resist 53 in the second opening 33 .

[0227] In one implementation of this technical solution, Fig.40As shown, the thickness of the primary color resist 52 is greater than the thickness of the secondary color resist 53 located outside the primary color resist 52. That is, the thickness of the primary color resist 52, which is mainly used to transmit the display light emitted by the primary light-emitting device 21, is large, and the thickness of the secondary color resist 53, which is mainly used to transmit the interference light emitted by the secondary light-emitting device 22, is small. Since the area of ​​the first opening 32 is usually larger than the area of ​​the second opening 33, setting the thickness of the primary color resist 52 in the first opening 32 to be larger can effectively reduce the reflection of the display panel 001 to the external light.

[0228] In one implementation of this technical solution, Fig.41 As shown, the thickness of the primary color resist 52 is less than the thickness of the secondary color resist 53 located outside the primary color resist 52, that is, the thickness of the primary color resist 52 mainly used for transmitting the display light emitted by the primary light-emitting device 21 is small, and the thickness of the secondary color resist 53 mainly used for transmitting the interference light emitted by the secondary light-emitting device 22 is large. Since the thickness of the primary color resist 52 above the primary light-emitting device 21 is small, the display brightness of the display panel 001 can be ensured to be high; by setting the thickness of the secondary color resist 52 in the second opening 33 to be larger, the problem of increased reflectivity of the display panel 001 to external light caused by the opening of the second opening 33 can be alleviated as much as possible.

[0229] In addition, when the thickness of the secondary color resist 53 corresponding to the secondary light-emitting device 22 increases, even if the luminous brightness of the secondary light-emitting device 22 needs to be increased in order to increase the brightness of the interfering light, the increase in driving power consumption of the pixel circuit electrically connected to the secondary light-emitting device 22 will not affect the power consumption of the display panel 001 too much.

[0230] Fig.42 A schematic diagram of a light-emitting device and a light-shielding layer in a display panel provided in an embodiment of the present application.

[0231] In a technical solution corresponding to this implementation, if Fig.42 As shown, the display panel 001 further includes a pixel definition layer 06, and the pixel definition layer 06 includes a main opening 61 and a sub-opening 62. The main opening 61 is provided with a main light emitting device 21 and is used to limit the light emitting area of ​​the main light emitting device 21, and the sub-opening 62 is provided with a sub-light emitting device 22 and is used to limit the light emitting area of ​​the sub-light emitting device 22.

[0232] Among them, the inclination angle of the side wall of the secondary opening 62 close to the main opening 61 is greater than the inclination angle of the side wall of the secondary opening 62 away from the main opening 61, that is, the side wall of the secondary opening 62 away from the area where the first opening 32 is located is flatter, and the side wall of the secondary opening 62 close to the area where the first opening 32 is located is more upright, so the amount of light emitted by the secondary light-emitting device 22 arranged in the secondary opening 62 transmitted to the first opening 32 is reduced and the amount of light transmitted to the second opening 33 is increased.

[0233] In a technical solution corresponding to the present embodiment, the main light emitting device 21 and the secondary light emitting device 22 adjacent to the main light emitting device 21 have the same color of light, that is, the display light emitted by the main light emitting device 21 has the same color as the interference light emitted by the secondary light emitting device 22 around it. The interference light emitted by the secondary light emitting device 22 in the present technical solution can be emitted through the primary color resistance 52 of the first opening 32 and the secondary color resistance 53 in the second opening 33, thereby ensuring the interference effect of the secondary light emitting device 22.

[0234] The structures of the main light emitting device 21 and the secondary light emitting device 22 in the present technical solution can be as follows Fig.15 As shown, it can also be Fig.16 It should be noted that when the main light emitting device 21 and the sub-light emitting device 22 in the technical solution are both organic light emitting diodes, the main light emitting device 21 is arranged in the main opening 61, which means that the organic light emitting layer 213 of the main light emitting device 21 is arranged in the main opening 61, and the sub-light emitting device 22 is arranged in the sub-opening 62, which means that the organic light emitting layer 223 of the sub-light emitting device 22 is arranged in the sub-opening 62.

[0235] In order to achieve interference with the display picture required to be displayed by the display panel 001 at a large viewing angle, the interference pictures displayed by the plurality of sub-light-emitting devices 22 need to be different from the display picture.

[0236] In addition, in order to further enhance the interference effect of the secondary light emitting device 22, the brightness of the light emitted by the secondary light emitting device 22 can be made greater than the brightness of the light emitted by the main light emitting device 21. In order to achieve that the brightness of the light emitted by the secondary light emitting device 22 is greater than the brightness of the light emitted by the main light emitting device 21, the connection between the secondary light emitting device 22 and the main light emitting device 21 and the pixel circuit can be adopted as follows: Fig. 9 The corresponding embodiment provides a manner in which the first pixel circuit 41 is electrically connected to the main light emitting device 21 , and the second pixel circuit 42 is electrically connected to the sub-light emitting device 22 .

[0237] In a technical solution corresponding to this embodiment, the main light emitting device 21 and the secondary light emitting device 22 adjacent to it on the outside have different colors of light emitted, that is, the display light emitted by the main light emitting device 21 is different from the color of the interference light emitted by the secondary light emitting device 22 around it. When the display panel 001 is in the anti-peeping mode, the viewer can see the light emitted by the main light emitting device 21 at a wide viewing angle, and can also see the light of different colors emitted by the secondary light emitting device 22. This technical solution uses the light of random colors emitted at a wide viewing angle to achieve anti-peeping.

[0238] Since the colors of light emitted by the main light emitting device 21 and the secondary light emitting devices 22 adjacent to the main light emitting device 21 and the secondary light emitting devices 22 are different, the display images displayed by the multiple main light emitting devices 21 and the interference images displayed by the multiple secondary light emitting devices 22 are different under a wide viewing angle.

[0239] Since the colors of the light emitted by the main light emitting device 21 and the secondary light emitting device 22 adjacent to the outside thereof are different, the structures of the main light emitting device 21 and the secondary light emitting device 22 in the technical solution can be Fig.16 As shown, no further description is given here.

[0240] In addition, in order to further enhance the interference effect of the secondary light-emitting device 22 , the brightness of the light emitted by the secondary light-emitting device 22 may also be made greater than the brightness of the light emitted by the primary light-emitting device 21 .

[0241] It should be noted that, since the colors of the light emitted by the main light emitting device 21 and the secondary light emitting device 22 adjacent to it are different, the colors of the main color resist 52 and the secondary color resist 53 adjacent to it are also different, and the light emitted by the secondary light emitting device 22 will not be emitted from the corresponding primary color resist 52 above the main light emitting device 21 adjacent to it. In this technical solution, it can be as follows Fig.42 As shown, the inclination angle of the side wall of the secondary opening 62 of the pixel definition layer 06 is changed to increase the amount of light emitted by the secondary light-emitting device 22 and directed toward the first opening.

[0242] In addition, in order to further enhance the interference effect of the secondary light emitting device 22, the brightness of the light emitted by the secondary light emitting device 22 can be made greater than the brightness of the light emitted by the main light emitting device 21. In order to achieve that the brightness of the light emitted by the secondary light emitting device 22 is greater than the brightness of the light emitted by the main light emitting device 21, the connection between the secondary light emitting device 22 and the main light emitting device 21 and the pixel circuit can be adopted as follows: Fig. 9 The corresponding embodiment provides a manner in which the first pixel circuit 41 is electrically connected to the main light emitting device 21 , and the second pixel circuit 42 is electrically connected to the sub-light emitting device 22 .

[0243] In the present technical solution, if the secondary light emitting device 22 is used to emit light of random colors at a large viewing angle to achieve anti-peeping, the main light emitting device 21 can also share the pixel circuit 40 with the secondary light emitting devices 22 around it, that is, the connection between the main light emitting device 21 and the secondary light emitting device 22 and the pixel circuit 40 can be adopted as follows Fig.12 and Fig.14 The methods provided in the corresponding embodiments will not be described in detail here.

[0244] Fig.43 A schematic diagram of a display device provided in an embodiment of the present application.

[0245] like Fig.43 As shown, the embodiment of the present application provides a display device, including a display panel 001 as provided in any of the above embodiments. The specific structure of the display panel 001 has been described in detail in the above embodiments, and will not be repeated here. Fig.43The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0246] In the display device provided in the embodiment of the present application, when both the main light-emitting device 21 and the secondary light-emitting device 22 emit light, the viewer can see the light emitted by the main light-emitting device 21 at a wide viewing angle, that is, the interference light emitted by the secondary light-emitting device 22. Therefore, the display device provided in the embodiment of the present application can achieve an anti-peeping effect, thereby well protecting the privacy of the user. When the main light-emitting device 21 emits light and the secondary light-emitting device 22 does not emit light, the viewer can only see the light emitted by the main light-emitting device 21 regardless of whether it is at a wide viewing angle or a small viewing angle, that is, the viewer can normally view the image displayed by the display device at different viewing angles. Therefore, the display device provided in the embodiment of the present application realizes switching between different display modes, and the display mode control of the display device is more flexible, which improves the user's experience.

[0247] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A light emitting device layer is arranged on one side of the substrate; the light emitting device layer comprises a plurality of main light emitting devices and a plurality of sub-light emitting devices, and the sub-light emitting devices are arranged around the main light emitting devices; A light shielding layer is arranged on a side of the light emitting device layer away from the substrate; the light shielding layer comprises a light shielding portion and a first opening arranged corresponding to the main light emitting device, and the light shielding portion covers the secondary light emitting device; The display mode of the display panel includes an anti-peeping mode and a normal mode; In the normal mode, the main light emitting device emits light and the secondary light emitting device does not emit light; In the anti-peeping mode, both the main light emitting device and the secondary light emitting device emit light.

2. The display panel according to claim 1, characterized in that: In the anti-peeping mode, the light luminance of the secondary light emitting device is greater than the light luminance of the primary light emitting device.

3. The display panel according to claim 1, characterized in that: The secondary light emitting device surrounds the primary light emitting device, or a plurality of the secondary light emitting devices are arranged around the primary light emitting device.

4. The display panel according to claim 1, characterized in that: The secondary light emitting devices are located on two opposite sides of the primary light emitting device.

5. The display panel according to claim 3 or 4, characterized in that: The periphery of the main light emitting device includes at least two secondary light emitting devices with different distances from the main light emitting device.

6. The display panel according to claim 1, characterized in that: The edge of the main light emitting device close to the secondary light emitting device includes a first concave-convex structure, and the edge of the secondary light emitting device close to the main light emitting device includes a second concave-convex structure; The concave portions of the first concave-convex structure partially surround the convex portions of the second concave-convex structure, and the concave portions of the second concave-convex structure partially surround the convex portions of the first concave-convex structure.

7. The display panel according to claim 1, characterized in that: The plurality of main light emitting devices include a first main light emitting device and a second main light emitting device, wherein the area of ​​the second main light emitting device is larger than that of the first main light emitting device; Wherein, the area of ​​the sub-light emitting device arranged around the second main light emitting device is larger than the area of ​​the sub-light emitting device arranged around the first main light emitting device.

8. The display panel according to claim 1, characterized in that: The plurality of main light emitting devices include a first main light emitting device and a second main light emitting device, the width of the first main light emitting device along a first direction is a1, and the width of the second main light emitting device along the first direction is b1; In the first direction, the width of the secondary light emitting device around the first main light emitting device is a2, and the width of the secondary light emitting device around the second main light emitting device is b2; Among them, a1<b1, and (a2 / a1)>(b2 / b1).

9. The display panel according to claim 1, characterized in that: In the projection of the first opening corresponding to the main light-emitting device and the secondary light-emitting devices around it along a plane perpendicular to the display panel, the minimum distance between the edge of the projection of the secondary light-emitting device close to the projection of the first opening and the edge of the first opening is x, x>0.

10. The display panel according to claim 9, characterized in that: x satisfies: Among them, h is the minimum distance between the secondary light-emitting device and the shading layer, n1 is the refractive index of the film layer on the side of the shading layer away from the light-emitting device layer, n2 is the refractive index of the film layer between the shading layer and the light-emitting device layer, and θ1 is the minimum anti-peeping angle of the display panel.

11. The display panel according to claim 1, characterized in that: The display panel further includes: The filter layer is arranged on a side of the light emitting device layer away from the substrate; the filter layer comprises a black matrix and a main color resist, the black matrix reuses the light shielding portion, and the first opening is filled with the main color resist.

12. The display panel according to claim 11, characterized in that: The thickness of the main color resist in a region close to the secondary light-emitting device is smaller than the thickness of the middle region of the main color resist.

13. The display panel according to claim 1, characterized in that: The light shielding portions between adjacent first openings are continuous structures.

14. The display panel according to claim 13, characterized in that: The first opening covers the main light emitting device.

15. The display panel according to claim 14, characterized in that: In a projection of the main light emitting device and the corresponding first opening along a plane perpendicular to the surface where the display panel is located, a projection area of ​​the main light emitting device is larger than a projection area of ​​the corresponding first opening.

16. The display panel according to claim 13, characterized in that: The main light emitting device and the surrounding sub-light emitting devices emit light of the same color.

17. The display panel according to claim 1, characterized in that: The light shielding layer further includes a second opening, and the second opening is located around the first opening.

18. The display panel according to claim 17, characterized in that: In the projection of the second opening, the sub-light emitting device and the main light emitting device along a plane perpendicular to the display panel, the projection of the second opening is located on a side of the projection of the sub-light emitting device away from the projection of the main light emitting device.

19. The display panel according to claim 18, characterized in that: In the projection of the sub-light emitting device and the corresponding second opening along the plane perpendicular to the display panel, the minimum distance between the edge of the projection of the sub-light emitting device close to the projection of the second opening and the edge of the projection of the second opening close to the sub-light emitting device is y, and y satisfies: Among them, h is the minimum distance between the secondary light-emitting device and the shading layer, n1 is the refractive index of the film layer on the side of the shading layer away from the light-emitting device layer, n2 is the refractive index of the film layer between the shading layer and the light-emitting device layer, and θ1 is the minimum anti-peeping angle of the display panel.

20. The display panel according to claim 17, characterized in that: The secondary light emitting device surrounds the primary light emitting device, and the second opening surrounds the first opening.

21. The display panel according to claim 17, characterized in that: In a projection of the first opening and the main light emitting device along a plane perpendicular to the surface where the display panel is located, a projection area of ​​the first opening is smaller than or equal to a projection area of ​​the main light emitting device.

22. The display panel according to claim 17, characterized in that: At least a portion of the edge of the second opening includes a third concavo-convex structure.

23. The display panel according to claim 22, characterized in that: The edge of the secondary light emitting device facing the adjacent second opening is a smooth structure.

24. The display panel according to claim 17, characterized in that: The display panel further comprises a pixel definition layer, the pixel definition layer comprises a main opening and a sub-opening, a main light emitting device is arranged in the main opening, and a sub-light emitting device is arranged in the sub-opening; The inclination angle of the side wall of the secondary opening close to the main opening is greater than the inclination angle of the side wall of the secondary opening away from the main opening.

25. The display panel according to claim 17, characterized in that: The display panel comprises a filter layer, and the filter layer comprises a primary color resistance and a secondary color resistance; Along a direction perpendicular to the surface where the display panel is located, the primary color resist overlaps with the first opening, and the secondary color resist overlaps with the second opening; the thickness of the primary color resist is greater than the thickness of the secondary color resist located outside the primary color resist.

26. The display panel according to claim 17, characterized in that: The display panel comprises a filter layer, and the filter layer comprises a primary color resistance and a secondary color resistance; Along a direction perpendicular to the surface where the display panel is located, the primary color resist overlaps with the first opening, and the secondary color resist overlaps with the second opening; the thickness of the primary color resist is smaller than the thickness of the secondary color resist located outside the primary color resist.

27. The display panel according to claim 17, characterized in that: The main light emitting device and the sub-light emitting device adjacent to the main light emitting device have the same color of light emitted.

28. The display panel according to claim 17, characterized in that: The main light emitting device emits light of a different color from the secondary light emitting device adjacent to the main light emitting device.

29. The display panel according to claim 1 or 27, characterized in that: The display panel further comprises a pixel circuit array layer, the pixel circuit array layer comprises a plurality of pixel circuits, the plurality of pixel circuits comprises a first pixel circuit and a second pixel circuit; The first pixel circuit is electrically connected to the main light emitting device, and the second pixel circuit is electrically connected to the sub-light emitting device.

30. The display panel according to claim 1 or 28, characterized in that: The display panel further comprises a pixel circuit array layer, wherein the pixel circuit array layer comprises a plurality of pixel circuits and a mode control module; The mode control module is used to control the light-emitting state of the secondary light-emitting device according to the display mode of the display panel; The pixel circuit is electrically connected to the main light emitting device, and the pixel circuit is also electrically connected to the sub-light emitting device through the mode control module.

31. The display panel according to claim 1 or 28, characterized in that: The display panel further comprises a pixel circuit array layer, wherein the pixel circuit array layer comprises a plurality of pixel circuits and a mode control module; The mode control module is used to control the light-emitting state of the secondary light-emitting device according to the display mode of the display panel; The pixel circuit includes a driving transistor, a light emission control transistor and a sub-light emission control transistor; The light emission control transistor is electrically connected between the driving transistor and the main light emitting device, and the sub-light emission control transistor is electrically connected between the driving transistor and the sub-light emitting device; Wherein, the mode control module is multiplexed with the secondary light emitting control transistor.

32. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-31.

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