Display panel, display device and control method

Abstract

Embodiments of the present application provide a display panel, a display device and a control method. The display panel comprises: a substrate; a light emitting device group located on one side of the substrate, the light emitting device group comprising a first light emitting device and a second light emitting device arranged at least partially around the first light emitting device; a driving circuit comprising a first driving circuit for driving the first light emitting device and a second driving circuit for driving the second light emitting device; and a shielding portion located on a side of the light emitting device group away from the substrate, the shielding portion at least partially overlapping the second light emitting device in orthographic projection on the substrate. Embodiments of the present application not only enable peep prevention, but also improve the display effect of the display device at a normal viewing angle.

Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to a display panel, display device and control method. Background Technology

[0002] Micro LEDs are devices with dimensions ranging from a few micrometers to hundreds of micrometers. Because they are much smaller than ordinary LEDs, it becomes possible to use a single LED as a pixel for display. A Micro LED display is a type of display that uses a high-density array of Micro LEDs as its pixel array to display images. With the continuous development of technology, people have increasingly higher demands for display screens and privacy. How to achieve privacy protection has become a pressing technical problem to be solved. Summary of the Invention

[0003] This application provides a display panel, a display device, and a control method, aiming to solve the problem of how to prevent privacy in display devices.

[0004] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate; a light-emitting device group located on one side of the substrate, the light-emitting device group including a first light-emitting device and a second light-emitting device disposed at least partially surrounding the first light-emitting device; a driving circuit including a first driving circuit for driving the first light-emitting device and a second driving circuit for driving the second light-emitting device; and a blocking portion located on the side of the light-emitting device group away from the substrate, the blocking portion at least partially overlapping the orthographic projection of the second light-emitting device on the substrate.

[0005] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above.

[0006] A third aspect embodiment of the device also provides a method for controlling a display panel, wherein the display panel is any of the display panels described in the first aspect embodiment above, and the control method includes:

[0007] Get the display mode of the display panel;

[0008] According to the display mode, the first light-emitting device is controlled to be in a first working state by the first driving circuit;

[0009] According to the display mode, the second light-emitting device is controlled to be in the second working state by the second driving circuit.

[0010] In the display panel provided in this application embodiment, the display panel includes a substrate and a light-emitting device group, a driving circuit, and a blocking portion disposed on the substrate. The light-emitting device group is used to realize the display of the display panel, the driving circuit is used to drive the light-emitting device group to emit light, and the blocking portion is used to block the light emitted by at least a portion of the light-emitting device group. The light-emitting device group includes a first light-emitting device and a second light-emitting device, and the driving circuit includes a first driving circuit and a second driving circuit. The first driving circuit and the second driving circuit are used to drive the first light-emitting device and the second light-emitting device to emit light respectively. Therefore, the first driving circuit and the second driving circuit can drive the first light-emitting device and the second light-emitting device to emit light independently, and can control the first light-emitting device and the second light-emitting device to display different image information. The second light-emitting device is disposed around at least a portion of the first light-emitting device, so the second light-emitting device can affect the display effect of the display panel from a side viewing angle. When the first light-emitting device and the second light-emitting device display different image information, the second light-emitting device located around the first light-emitting device can display different image information than the first light-emitting device to achieve a privacy protection function. The blocking portion is located on the side of the light-emitting device group away from the substrate, so the blocking portion can block the light emitted from the front of the light-emitting device group. The shielding portion and the orthographic projection of the second light-emitting device on the substrate at least partially overlap. Therefore, the shielding portion can block at least a portion of the front light emission of the second light-emitting device, thereby reducing the impact of the front light emission of the second light-emitting device on the light emission of the first light-emitting device and improving the display effect of the display device at a forward viewing angle. Therefore, the embodiments of this application can not only achieve privacy protection, but also improve the display effect of the display device at a forward viewing angle. Attached Figure Description

[0011] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0012] Figure 1 This is a schematic diagram of the structure of a display panel provided in this application;

[0013] Figure 2 yes Figure 1 Sectional view at point AA;

[0014] Figure 3 It is again Figure 1 Sectional view at point AA;

[0015] Figure 4 yes Figure 2 A magnified schematic diagram of the first and second light-emitting devices in the diagram;

[0016] Figure 5 This is a cross-sectional view of a first light-emitting device of a display panel provided in this application;

[0017] Figure 6 This is a cross-sectional view of the first light-emitting device of another display panel in this application;

[0018] Figure 7 This is a cross-sectional view of a first light-emitting device of another display panel according to this application;

[0019] Figure 8 This application also discloses a cross-sectional view of a first light-emitting device for a display panel;

[0020] Figure 9 It is another Figure 2 A magnified schematic diagram of the first and second light-emitting devices in the diagram;

[0021] Figure 10 It is another Figure 1 Sectional view at point AA;

[0022] Figure 11 Is it still one? Figure 1 Sectional view at point AA;

[0023] Figure 12 It is yet another one Figure 1 Sectional view at point AA;

[0024] Figure 13 It is again Figure 1 Sectional view at point AA;

[0025] Figure 14 It is another Figure 2 A magnified schematic diagram of the first and second light-emitting devices in the diagram;

[0026] Figure 15 This is a schematic diagram of the structure of another display panel in this application;

[0027] Figure 16 This application also includes a schematic diagram of the structure of a display panel;

[0028] Figure 17 This is a schematic diagram of the structure of the light-emitting device group of a display panel provided in this application;

[0029] Figure 18 This is a schematic diagram of the structure of the light-emitting device group of another display panel in this application;

[0030] Figure 19 yes Figure 17 Sectional view at point BB;

[0031] Figure 20 yes Figure 15 Sectional view at CC;

[0032] Figure 21 This is a schematic diagram of the structure of a display device provided in this application;

[0033] Figure 22 This is a schematic diagram of a control method for a display panel provided in this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Substrate;

[0036] 200, Light-emitting device group; 210, First light-emitting device; 211, First top surface; 212, First side surface; 213, First bottom surface; 214, Reflective layer; 220, Second light-emitting device; Q1, First region; Q2, Second region; 221, Second top surface; 222, Second side surface; 223, Reflective film; 230, First electrode; 240, Second electrode; 250, Third electrode; 260, Fourth electrode;

[0037] 300, Array layer; 300a, Driving circuit; 310, First driving circuit; 320, Second driving circuit; 330, First contact electrode; 340, Second contact electrode; 350, First substrate electrode; 360, Second substrate electrode; 370, First lead; 380, Second lead;

[0038] 400. Obstruction area;

[0039] 500, Buffer layer. Detailed Implementation

[0040] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0041] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] To better understand this application, the following will be combined with... Figures 1 to 22 The display panel, display device, and control method according to embodiments of this application will be described in detail.

[0044] Figure 1 This is a partial structural diagram of a display panel provided in this application. Figure 2 yes Figure 1 Sectional view at point AA.

[0045] like Figure 1 and Figure 2 As shown, the display panel provided in this application embodiment includes a substrate 100 and a light-emitting device group 200, a driving circuit 300a, and a blocking portion 400 disposed on the substrate 100. The light-emitting device group 200 is located on one side of the substrate 100 and includes a first light-emitting device 210 and a second light-emitting device 220 disposed at least partially surrounding the first light-emitting device 210. The driving circuit 300a includes a first driving circuit 310 for driving the first light-emitting device 210 and a second driving circuit 320 for driving the second light-emitting device 220. The blocking portion 400 is located on the side of the light-emitting device group 200 away from the substrate 100, and the blocking portion 400 and the second light-emitting device 220 at least partially overlap in their orthographic projections on the substrate 100.

[0046] In the display panel provided in this application embodiment, the display panel includes a substrate 100 and a light-emitting device group 200, a driving circuit 300a, and a blocking portion 400 disposed on the substrate 100. The light-emitting device group 200 is used to realize the display of the display panel, the driving circuit 300a is used to drive the light-emitting device group 200 to emit light, and the blocking portion 400 is used to block at least part of the light emitted by the light-emitting device group 200 to change the viewing angle of the light-emitting device group 200.

[0047] The light-emitting device group 200 includes a first light-emitting device 210 and a second light-emitting device 220. The driving circuit 300a includes a first driving circuit 310 and a second driving circuit 320. The first driving circuit 310 and the second driving circuit 320 are used to drive the first light-emitting device 210 and the second light-emitting device 220 to emit light, respectively. Therefore, the first driving circuit 310 and the second driving circuit 320 can drive the first light-emitting device 210 and the second light-emitting device 220 to emit light independently, and can control the first light-emitting device 210 and the second light-emitting device 220 to display different image information.

[0048] The second light-emitting device 220 is disposed around at least a portion of the first light-emitting device 210. The first light-emitting device 210 emits light in a forward direction, while the second light-emitting device 220 emits light circumferentially around the first light-emitting device 210. Therefore, the second light-emitting device 220 can affect the display effect of the display panel from a side viewing angle. The first light-emitting device 210 can be used for displaying the display panel from a forward viewing angle, and the second light-emitting device 220 can be used for displaying the display panel from a side viewing angle. Here, the forward viewing angle refers to a viewing angle with a small angle to the first direction Z perpendicular to the plane of the display panel. For example, the forward viewing angle can be a viewing angle with an angle less than or equal to 30 degrees to the first direction Z. The side viewing angle refers to a viewing angle with a large angle to the first direction Z. For example, the side viewing angle can be a viewing angle with an angle greater than 30 degrees to the first direction Z. When the first light-emitting device 210 and the second light-emitting device 220 display different image information, the second light-emitting device 220 located around the first light-emitting device 210 can display image information different from that of the first light-emitting device 210. For example, the first light-emitting device 210 is used to display target image information, and the second light-emitting device 220 is used to display interference image information, so that the display panel can display target image information at a frontal viewing angle and interference image information at a side viewing angle, thereby achieving the privacy protection function of the display panel. In other embodiments, the first light-emitting device 210 and the second light-emitting device 220 can also be used to display the same image information, so that the image displayed on the display panel can be observed from different angles.

[0049] The blocking portion 400 is located on the side of the light-emitting device group 200 facing away from the substrate 100, thus blocking the front light emission of the light-emitting device group 200. The blocking portion 400 and the orthographic projection of the second light-emitting device 220 on the substrate 100 at least partially overlap, therefore the blocking portion 400 can block at least a portion of the front light emission of the second light-emitting device 220, i.e., the blocking portion 400 can block light emitted by the second light-emitting device 220 at a small angle to the first direction Z. This results in the visible light emitted by the second light-emitting device 220 having a larger angle to the first direction Z, thereby changing the light emission angle of the second light-emitting device 220 and reducing its viewing angle. The blocking portion 400 can also mitigate the impact of the front light emission of the second light-emitting device 220 on the light emission of the first light-emitting device 210, improving the display effect of the display panel at a normal viewing angle. Therefore, the embodiments of this application can not only achieve privacy protection, but also change the light emission angle of the second light-emitting device 220 through the blocking part 400, and improve the display effect of the display panel at the normal viewing angle.

[0050] There are various ways to arrange the substrate 100. For example, the substrate 100 can be a rigid substrate, and the material of the substrate 100 includes rigid materials such as glass. Alternatively, the substrate 100 can be a flexible substrate, and the material of the substrate 100 includes flexible materials such as polyimide.

[0051] Optionally, the display panel includes an array layer 300 disposed on the substrate 100, and a driving circuit 300a may be disposed on the array layer 300. The array layer 300 may also include driving signal lines, through which driving information can be transmitted to the driving circuit 300a. The light-emitting device group 200 is disposed on the side of the array layer 300 opposite to the substrate 100.

[0052] Optionally, the display panel further includes a first contact electrode 330 and a second contact electrode 340. The first light-emitting device 210 is connected to the first driving circuit 310 through the first contact electrode 330, and the second light-emitting device 220 is connected to the second driving circuit 320 through the second contact electrode 340. Optionally, the display panel further includes a first substrate electrode 350 and a second substrate electrode 360. The cathode of the first light-emitting device 210 can be connected to the first substrate electrode 350, and the cathode of the second light-emitting device 220 can be connected to the second substrate electrode 360. There are various ways to arrange the first substrate electrode 350 and the second substrate electrode 360. The first substrate electrode 350 and the second substrate electrode 360 ​​can be arranged independently and separately, or they can be arranged as a single unit.

[0053] There are several ways to position the first substrate electrode 350, such as Figure 2As shown, when the first light-emitting device 210 and the second light-emitting device 220 are horizontal flip-chip LEDs, the LED has two electrodes. A horizontal flip-chip LED means that the two electrodes of the LED are located on the side of the LED facing the driving substrate, that is, the electrodes of the first light-emitting device 210 and the second light-emitting device 220 are both located on the side facing the substrate 100. The first substrate electrode 350 and the second substrate electrode 360 ​​can be disposed on the side of the first light-emitting device 210 and the second light-emitting device 220 facing the substrate 100. At this time, the first substrate electrode 250, the second substrate electrode 360 ​​and at least part of the first contact electrode 330 and the second contact electrode 340 can be disposed in the same layer and fabricated in the same process step.

[0054] Or, such as Figure 3 As shown, when the first light-emitting device 210 and the second light-emitting device 220 are vertical LEDs, a vertical LED means that one of the two electrodes of the LED is located on the side of the LED facing the driving substrate, and the other is located on the side of the LED away from the driving substrate. The first substrate electrode 350 and the second substrate electrode 360 ​​are located on the side of the first light-emitting device 210 and the second light-emitting device 220 away from the substrate 100.

[0055] There are various ways to arrange the light-emitting device group 200. For example, both the first light-emitting device 210 and the second light-emitting device 220 can be Micro LEDs, resulting in better luminous effect and longer lifespan for the display panel. The shapes of the first light-emitting device 210 and the second light-emitting device 220 can also be varied. For example, the orthographic projections of the first light-emitting device 210 and the second light-emitting device 220 onto the substrate 100 can be polygonal, circular, elliptical, or annular. The second light-emitting device 220 can also surround the first light-emitting device 210 in a ring shape, in which case the orthographic projection of the first light-emitting device 210 onto the substrate 100 can be circular. There are also various ways to arrange the first light-emitting device 210 and the second light-emitting device 220. For example, the first light-emitting device 210 and the second light-emitting device 220 can be arranged in an array along the second direction X and the third direction Y.

[0056] There are several ways to set up the shielding part 400, such as Figure 2 As shown, the blocking part 400 can directly contact and connect with the second light-emitting device 220. Alternatively, as... Figure 3 As shown, the shielding portion 400 can be disposed at a distance from the second light-emitting device 220, for example, the shielding portion 400 is located on the encapsulation layer of the second light-emitting device 220. It is sufficient that at least part of the shielding portion 400 is located on the side of the second light-emitting device 220 away from the substrate 100.

[0057] Please see Figure 4 . Figure 4 yes Figure 2 A partially enlarged structural diagram in the image. Figure 4 Only showed Figure 2 The diagram shows the relative positions of the first light-emitting device 210, the second light-emitting device 220, and the substrate 100 on the plane. Furthermore, to better illustrate the structure of the first light-emitting device 210 and the second light-emitting device 220, the spacing between them has been appropriately altered. Figure 4 The drawing scale does not constitute a limitation on the structure of the embodiments of this application.

[0058] Optional, such as Figure 4 As shown, the first light-emitting device 210 has a first field of view (FOV1), and the second light-emitting device 220 has a second field of view (FOV2). The first field of view (FOV1) is the viewing angle of the first light-emitting device 210, and the light emitted by the first light-emitting device 210 is mainly within the first field of view (FOV1). Similarly, the second field of view (FOV2) is the viewing angle of the second light-emitting device 220, and the light emitted by the second light-emitting device 220 is mainly within the second field of view (FOV2).

[0059] Optionally, the sum of the first field of view (FOV1) and a set of second field of view (FOV2) is greater than or equal to 180 degrees. For example, as... Figure 4 As shown, when the first light-emitting device 210 and the second light-emitting device 220 are arranged in a one-to-one correspondence, and the second light-emitting device 220 is located on one side of the first light-emitting device 210, the sum of the first field of view (FOV1) of the first light-emitting device 210 and the second field of view (FOV2) of the second light-emitting device 220 is greater than or equal to 180 degrees. In other embodiments, when the second light-emitting device 220 is arranged in a ring shape around the first light-emitting device 210, the sum of the second field of view (FOV2) of the first light-emitting device 210 and the portion of the second light-emitting device 220 located on the same side is greater than or equal to 180 degrees. The second field of view (FOV2) of the portion of the second light-emitting device 220 located on the same side constitutes a set of second field of view (FOV2). When the first light-emitting device 210 and the second light-emitting device 220 are used to display the same image information, the image information displayed on the display panel can be observed from different angles. Figure 4 Taking the sum of the first field of view FOV1 and a set of second field of view FOV2 as 180 degrees as an example, in other embodiments, such as when the display panel is a curved display panel and the curved area of ​​the display panel can be displayed, the sum of the first field of view FOV1 and the second field of view FOV2 can also be greater than 180 degrees.

[0060] Optional, such as Figure 4 As shown, the angle of the first field of view FOV1 is less than or equal to 60 degrees. Figure 4This can be considered a cross-sectional view of the display panel in a plane perpendicular to the plane containing the substrate 100. The first field of view (FOV1) is less than or equal to 60 degrees. When the first light-emitting device 210 is used to display target image information, the user can observe the target image information relatively clearly within a limited angle. For example, the user can observe the target image information relatively clearly within a range where the angle with the first direction Z is less than 30 degrees, but cannot observe the target image information relatively clearly in other ranges. This can improve the privacy protection effect of the display panel in privacy mode.

[0061] Optionally, the angle between the first light emitted by the first light-emitting device 210 and the plane where the substrate 100 is located is greater than or equal to 60 degrees. The larger angle between the first light emitted by the first light-emitting device 210 and the plane where the substrate 100 is located allows the user to observe the target image information more clearly within a range where the angle with the first direction Z is smaller.

[0062] Optionally, the angle between the second light emitted by the second light-emitting device 220 and the plane of the substrate 100 is less than or equal to 60 degrees. Because the angle between the second light emitted by the second light-emitting device 220 and the plane of the substrate 100 is small, the image observed from a side view is the image displayed by the second light-emitting device 220. When the second light-emitting device 220 displays interfering image information, the image displayed on the display panel from a side view is the interfering image information, thus ensuring the privacy protection effect of the display panel.

[0063] In addition, the second light emitted by the second light-emitting device 220 has a large angle with the first direction Z, which can improve the influence of the second light emitted by the second light-emitting device 220 on the first light emitted by the first light-emitting device 210, and ensure the display effect of the display panel at a normal viewing angle.

[0064] Optionally, the angle ranges of the first field of view (FOV1) and the second field of view (FOV2) do not overlap, so that the light emission of the first light-emitting device 210 and the light emission of the second light-emitting device 220 do not interfere with each other. Optionally, the sum of the first field of view (FOV1) and a set of second field of view (FOV2) is equal to 180 degrees, which can avoid the situation where the first field of view (FOV1) and the set of second field of view (FOV2) are separated from each other, resulting in the user being unable to observe the display information of the display panel at certain angles.

[0065] Optionally, in a set of second field of view (FOV2) of the second light-emitting device 220, one second field of view FOV2 is 0 to 60 degrees, and the other second field of view FOV2 can be considered to be 120 to 180 degrees, while the first field of view FOV1 is 60 to 120 degrees. When the first field of view FOV1 is 60 to 120 degrees, the angle between the light emitted by the first light-emitting device 210 and the first direction Z is less than or equal to 30 degrees, i.e., the viewing angle is 0 to 30 degrees. Therefore, when the angle between the user's viewing angle and the first direction Z is within 30 degrees, the user sees the image information displayed by the first light-emitting device 210; when the angle between the user's viewing angle and the first direction Z is greater than 30 degrees, the user can see the image information displayed by the second light-emitting device 220 more clearly. By having the first light-emitting device 210 and the second light-emitting device 220 display different image information, the switching between different display modes of the display panel can be realized.

[0066] For example, when the display panel is in privacy mode, the first light-emitting device 210 can display the target image information, and the second light-emitting device 220 can display interfering image information, or the second light-emitting device 220 can be turned off. Then, when the angle between the user's viewing angle and the first direction Z is within 30 degrees, the user sees the target image information displayed by the first light-emitting device 210. When the angle between the user's viewing angle and the first direction Z is greater than 30 degrees, the user can see more clearly the interfering image information or dark-state information displayed by the second light-emitting device 220.

[0067] When the display panel is in normal display mode, the first light-emitting device 210 and the second light-emitting device 220 can be used to display the same image information. Then, the same image information can be observed whether the angle between the user's viewing angle and the first direction Z is within 30 degrees or outside 30 degrees, thus realizing the normal display of the display panel.

[0068] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the first light-emitting device 210 includes a first top surface 211 located away from the substrate 100, a first bottom surface 213 facing the substrate 100, and a first side surface 212 connecting the first top surface 211 and the first bottom surface 213. The first top surface 211 is the light-emitting surface, and the included angle k1 between the first side surface 212 and the first bottom surface 213 is an obtuse angle.

[0069] In these optional embodiments, the first top surface 211 is the light-emitting surface, that is, the first light emitted by the first light-emitting device 210 is mainly emitted from the first top surface 211, which can reduce the angle between the light emitted by the first light-emitting device 210 and the first direction Z, and improve the display effect of the orthogonal viewing angle.

[0070] like Figure 5and Figure 6 As shown, when the first light emitted by the first light-emitting device 210 (such as...) Figure 5 and Figure 6 (As indicated by the middle arrow) When reflected by the first side surface 212, the angle k1 between the first side surface 212 and the first bottom surface 213 is obtuse. Compared to the angle k1 between the first side surface 212 and the first bottom surface 213 being right, the angle α1 between the first light emitted from the first side surface 212 and the first direction Z is smaller. That is, the first light can be deflected towards the top surface 201. Therefore, the obtuse angle k1 between the first side surface 212 and the first bottom surface 213 can reduce the angle α1 between the first light emitted by the first light-emitting device 210 and the first direction Z. That is, as k1 increases, it helps to reduce the light emission angle of the first light-emitting device 210 and improve the positive viewing angle display effect of the first light-emitting device 210.

[0071] like Figure 7 and Figure 8 As shown, when the first light-emitting device 210 emits the first light (such as...) Figure 7 and Figure 8 As shown by the middle arrow, when light is emitted from the first side surface 212, the angle k1 between the first side surface 212 and the first bottom surface 213 is an obtuse angle compared to the right angle k1 between the first side surface 212 and the first bottom surface 213. Therefore, the angle β1 between the light emitted from the first side surface 212 and the first direction Z is smaller, which can increase the light output of the light-emitting device 200a at the front viewing angle, thereby improving the display effect of the light-emitting device 200a at the front viewing angle.

[0072] Therefore, as Figures 2 to 8 As shown, when the angle k1 between the first side surface 212 and the first bottom surface 213 is an obtuse angle, the first light emitted by the first light-emitting device 210 can be deflected toward the first direction Z, which can reduce the angle between the first light and the first direction Z and improve the display effect of the display panel from the front viewing angle.

[0073] In some alternative embodiments, please refer to Figure 9 The display panel also includes a reflective layer 214, which covers at least a portion of the first side surface 212. The first light emitted by the first light-emitting device 210 can be reflected back into the first light-emitting device 210 at the first side surface 212, thus reducing the light emission of the first light-emitting device 210 at the first side surface 212 and lowering the light emission of the first light-emitting device 210 at the side viewing angle, further improving the privacy protection effect. Furthermore, when the first light is reflected back into the first light-emitting device 210 from the first side surface 212, it may also increase the light emission of the first light-emitting device 210 at the front viewing angle, thereby improving the front viewing angle display effect of the first light-emitting device 210.

[0074] Optionally, the reflective layer 214 can completely cover the first side surface 212, further reducing the light emission from the first side surface 212. There are various ways to configure the reflective layer 214. For example, the reflective layer 214 can include a metallic material coated on the first side surface 212. Alternatively, the reflective layer 214 and the first side surface 212 can be spaced apart, meaning an additional reflective structure is provided outside the first side surface 212. As long as the reflective layer 214 can cover the first side surface 212, the first light can be reflected back into the first light-emitting device 210 through the reflective layer 214.

[0075] In some optional embodiments, at least a portion of the first side surface 212 is a light-blocking surface. When the first side surface 212 is a light-blocking surface, the amount of light emitted from the first side surface 212 can be reduced, thereby reducing the amount of light emitted by the first light-emitting device 210 at the side viewing angle and further improving the privacy protection effect.

[0076] There are several ways to set the light-blocking surface. For example, the first side surface 212 can be provided with a light-blocking material or a light-absorbing material. When the first light passes through the first side surface 212, it can be blocked by the light-blocking material or absorbed by the light-absorbing material, so that the first light cannot be emitted from the first side surface 212. Alternatively, a reflective material can be provided on the first side surface 212. When the first light passes through the first side surface 212, it can be reflected back into the first light-emitting device 210 and cannot be emitted from the first side surface 212.

[0077] In some alternative embodiments, please continue to refer to Figure 9 The orthographic projection of the blocking part 400 on the substrate 100 and the orthographic projection of the first light-emitting device 210 on the substrate 100 are staggered, that is, the orthographic projection of the blocking part 400 on the substrate 100 and the orthographic projection of the first light-emitting device 210 on the substrate 100 do not overlap, so that the blocking part 400 will not block the forward light emission of the first light-emitting device 210, thus ensuring the light emission effect of the first light-emitting device 210.

[0078] In some alternative embodiments, please continue to refer to Figure 9 The projected area of ​​the shielding portion 400 on the substrate 100 is smaller than the projected area of ​​the second light-emitting device 220 on the substrate 100. The second light-emitting device 220 includes a first region Q1 that overlaps with the shielding portion 400 in the first direction Z, and a second region Q2 that does not overlap with the shielding portion 400 in the first direction Z. The first region Q1 is located on the side of the second region Q2 that is closer to the first light-emitting device 210.

[0079] In these alternative embodiments, the first region Q1 is closer to the first light-emitting device 210, so the light emitted from the second light-emitting device 220 through the first region Q1 is more likely to affect the first light-emitting device 210. The first region Q1 on the second light-emitting device 220 is blocked by the blocking portion 400, while the second region Q2 is not blocked. The blocking portion 400, located in the first region Q1, can better mitigate the impact of the light emitted by the second light-emitting device 220 on the light emitted from the first light-emitting device 210.

[0080] In some alternative embodiments, please refer to Figure 10 The display panel also includes a first electrode 230 and a second electrode 240. One of the first electrode 230 and the second electrode 240 is connected to the second driving circuit 320 and is used to drive the second light-emitting device 220 to emit light. That is, the second driving circuit 320 is electrically connected to the second light-emitting device 220 through one of the first electrode 230 and the second electrode 240, so that the second driving circuit 320 can drive the second light-emitting device 220.

[0081] One of the first electrode 230 and the second electrode 240 is a cathode and the other is an anode. For example, the first electrode 230 is an anode and the second electrode 240 is a cathode. The second driving circuit 320 can be connected to the first electrode 230 and drive the second light-emitting device 220 to emit light through the first electrode 230.

[0082] The first electrode 230 and the second electrode 240 typically include conductive materials. For example, the first electrode 230 and the second electrode 240 can be made of metallic conductive materials, in which case the first electrode 230 and the second electrode 240 have the function of shielding or reflecting light.

[0083] Optional, such as Figure 10 As shown, at least one of the first electrode 230 and the second electrode 240 can be reused as a shielding portion 400, which can enrich the function of the shielding portion 400 and simplify the structure of the display panel. For example, when the first electrode 230 is an anode and the second electrode 240 is a cathode, the first electrode 230 can be reused as a shielding portion 400. In other embodiments, when the first electrode 230 and the second electrode 240 are fabricated using a metallic conductive material, both the first electrode 230 and the second electrode 240 can be reused as shielding portions 400, and both the first electrode 230 and the second electrode 240 are disposed on the side of the second light-emitting device 220 away from the substrate 100 and are insulated from each other.

[0084] In other embodiments, such as Figure 11 As shown, at least one of the first electrode 230 and the second electrode 240 may also be arranged side by side with the shielding portion 400 on the side of the second light-emitting device 220 away from the substrate 100.

[0085] In these embodiments, one of the first electrode 230 and the second electrode 240 is disposed on the side of the second light-emitting device 220 away from the substrate 100. One of the first electrode 230 and the second electrode 240 can play a role in reflecting or blocking light, which can further reduce the light emitted from the front of the second light-emitting device 220.

[0086] For example, when the first electrode 230 is the anode and the second electrode 240 is the cathode, the first electrode 230 is arranged side by side with the shielding portion 400 on the side of the second light-emitting device 220 away from the substrate 100.

[0087] Please continue reading. Figure 10 and Figure 11 The first light-emitting device 210 and the second light-emitting device 210 are horizontally mounted LEDs. The first light-emitting device 210 includes a third electrode 250 and a second electrode 260. One of the third electrode 250 and the fourth electrode 260 is an anode and is connected to the first driving circuit 310, while the other is a cathode. This application uses the third electrode 250 as the anode and the fourth electrode 260 as the cathode as an example for illustration.

[0088] When the first light-emitting device 210 is a horizontally mounted LED, the third electrode 250 and the fourth electrode 260 are located on the side of the first light-emitting device 210 facing away from the substrate 100. The third electrode 250 can be interconnected with the first driving circuit 310 via the first lead 370. Similarly, the first electrode 230 can be interconnected with the second driving circuit 320 via the second lead 380.

[0089] Optional, such as Figure 10 and Figure 11 As shown, the second electrode 250 and the fourth electrode 260 can be located on the opposite side of the first light-emitting device 210 and the second light-emitting device 220 to reduce the electrode between the second electrode 250 and the fourth electrode 260. The second electrode 250 and the fourth electrode 260 can be connected to the same substrate electrode.

[0090] In some embodiments, please continue reading Figure 11 The second light-emitting device 220 is a horizontally mounted LED. At least one of the first electrode 230 and the second electrode 240 is arranged side-by-side with the shielding portion 400 on the side of the second light-emitting device 220 facing away from the substrate 100. When the second light-emitting device 220 includes a first region Q1 and a second region Q2, the first electrode 230 and / or the second electrode 240 is located in the second region Q2. Figure 11 As shown, the first electrode 230 and the shielding part 400 are arranged side by side, and the first electrode 230 is located in the first region Q1 or, as shown... Figure 12As shown, the second light-emitting device 220 is a vertical LED, the second electrode 240 is located on the side of the second light-emitting device 220 away from the substrate 100, and the first electrode 230 is located on the side of the second light-emitting device 220 facing the substrate 100 and is connected to the second contact electrode 340. Therefore, the second electrode 240 is located in the second region Q2, and the blocking portion 400 is located in the first region Q1.

[0091] In some embodiments, such as Figure 10 and Figure 12 As shown, the second light-emitting device 220 includes a second top surface 221 facing away from the substrate 100. The shielding portion 400 is in contact with the second top surface 221 of the second light-emitting device 220. In the direction from the second light-emitting device 220 to the first light-emitting device 210, the sum of the width of the first electrode 230 and / or the second electrode 240 arranged side by side with the shielding portion 400 and the width of the shielding portion 400 is equal to the width of the second top surface 221.

[0092] For example, such as Figure 11 As shown, when both the first electrode 230 and the blocking part 400 are located on the second top surface 221, the sum of the width of the first electrode 230 and the width of the blocking part 400 is equal to the width of the second top surface 221. Therefore, the second top surface 221 can be completely blocked by the first electrode 230 and the blocking part 400, which can further reduce the amount of light emitted from the second top surface 221 and improve the influence of the light emitted by the second light-emitting device 220 on the light emitted by the first light-emitting device 210.

[0093] In other embodiments, such as Figure 12 As shown, when both the second electrode 240 and the shielding portion 400 are located on the side where the second top surface 221 is located, the sum of the width of the second electrode 240 and the width of the shielding portion 400 is equal to the width of the second top surface 221, meaning that the second top surface 221 can be completely shielded by the second electrode 240 and the shielding portion 400. In some other embodiments, the first electrode 230, the second electrode 240, and the shielding portion 400 are all located on the second top surface 221, and the sum of the width of the first electrode 230, the width of the second electrode 240, and the width of the shielding portion 400 is equal to the width of the second top surface 221, meaning that the second top surface 221 can be completely shielded by the first electrode 230, the second electrode 240, and the shielding portion 400.

[0094] Optionally, the second light-emitting device 220 includes a first semiconductor portion, a light-emitting portion, and a second semiconductor portion sequentially stacked in a direction away from the substrate 100. A blocking portion 400 is located on the side of the second semiconductor portion opposite to the light-emitting portion, preventing the blocking portion 400 from affecting the normal light emission of the second light-emitting device 220. One of the first semiconductor portion and the second semiconductor portion is connected to the first electrode 230, and the other is connected to the second electrode 240, so that the first electrode 230 and the second electrode 240 can drive the light-emitting portion to emit light through the first semiconductor portion and the second semiconductor portion.

[0095] In some embodiments, such as Figure 12 As shown, one of the first electrode 230 and the second electrode 240 is arranged side-by-side with the blocking portion 400 on the second top surface 221, while the other is located on the side of the second light-emitting device 220 facing away from the second top surface 221. For example, as described above, the first electrode 230 is the anode, and the first electrode 230 is located on the side of the second light-emitting device 220 facing away from the second top surface 221, that is, the first electrode 230 is located on the side of the second light-emitting device 220 facing the array layer 300, so as to reduce the distance between the first electrode 230 and the second driving circuit 320. The second electrode 240 is located on the second top surface 221 to further reduce the light emission of the second top surface 221.

[0096] In some alternative embodiments, such as Figures 10 to 12 As shown above, the display panel also includes a third electrode 250 and a fourth electrode 260, at least one of which is connected to the first driving circuit 310 and used to drive the first light-emitting device 210 to emit light.

[0097] The third electrode 250 and the fourth electrode 260 can be positioned in various ways, for example... Figure 10 As shown, the first light-emitting device 210 is a horizontally mounted LED, that is, the third electrode 250 and the fourth electrode 260 are located on the side of the first light-emitting device 210 away from the array layer 300.

[0098] Or, such as Figure 12 As shown, the first light-emitting device 210 is a horizontal flip-chip LED, that is, the third electrode 250 and the fourth electrode 260 are located on the side of the first light-emitting device 210 facing the array layer 300.

[0099] In these optional embodiments, the first driving circuit 310 drives the first light-emitting device 210 through one of the third electrode 250 and the fourth electrode 260. The third electrode 250 and the fourth electrode 260 are both located on the side of the first light-emitting device 210 facing the substrate 100, which can reduce the influence of the third electrode 250 and the fourth electrode 260 on the light emission of the first light-emitting device 210. That is, the first light-emitting device 210 is a horizontal flip-chip LED, and the first light-emitting device 210 mainly emits light in the forward direction, ensuring the positive viewing angle light emission effect of the first light-emitting device 210.

[0100] One of the third electrode 250 and the fourth electrode 260 is an anode and the other is a cathode. For example, the third electrode 250 is an anode and is connected to the first driving circuit 310, and the fourth electrode 260 is a cathode.

[0101] In other embodiments, such as Figure 13 As shown, both the first light-emitting device 210 and the second light-emitting device 220 are horizontal flip-chip LEDs. The third electrode 250 and the fourth electrode 260 of the first light-emitting device 210 are located on the side facing the substrate 100, and the first electrode 210 and the second electrode 220 of the second light-emitting device 220 are also located on the side facing the substrate 100. Optionally, the first electrode 230 and the second contact electrode 340 are interconnected, and the third electrode 250 and the first contact electrode 330 are interconnected. The second electrode 240 and the fourth electrode 260 are arranged facing each other, so that the second electrode 240 and the fourth electrode 260 can be connected to the integrally formed first substrate electrode 350 and second substrate electrode 360.

[0102] There are various ways to configure the blocking part 400. The material of the blocking part 400 can include a light-blocking material, such as ink, allowing it to block the light emitted by the second light-emitting device 220. Alternatively, the material of the blocking part 400 can include a reflective material, such as a metal, enabling it to not only block the light emitted by the second light-emitting device 220 but also reflect the forward-emitting light back into the second light-emitting device 220, potentially improving its light emission in other directions. In some embodiments, the blocking part 400 is a distributed Bragg reflection (DBR) used to reflect the light emitted by the second light-emitting device 220, allowing it to better reflect the light emitted by the second light-emitting device 220.

[0103] In some alternative embodiments, such as Figure 14As shown, the second light-emitting device 220 also includes a second top surface 221 located on the side opposite to the substrate 100, and a second side surface 222 connected to the second top surface 221 and extending from the second top surface 221 toward the substrate 100, at least part of the second side surface 222 being a light-emitting surface.

[0104] In these optional embodiments, the second side surface 222 of the second light-emitting device 220 is at least partially a light-emitting surface, that is, the light emitted by the second light-emitting device 220 is at least partially emitted from the second side surface 222. This can increase the angle between the second light emitted by the second light-emitting device 220 and the first direction Z, which can both improve the impact of the light emitted by the second light-emitting device 220 on the first light-emitting device 210 and enable the second light-emitting device 220 to achieve side light emission of the display panel.

[0105] When the display panel is in privacy mode, as described above, the first light-emitting device 210 can display target image information, and the second light-emitting device 220 can display interference image information. The target image information is emitted from the front, allowing the user to view it clearly from the front. The interference image information is emitted from the side, so when viewed from the side of the display panel, only interference image information is visible, thus achieving the privacy function.

[0106] Optional, such as Figure 14 As shown, the second light-emitting device 220 may further include a reflective film 223, which is disposed on the surface of the second light-emitting device 220 facing the first light-emitting device 210. On the one hand, the reflective film 223 can reduce the amount of light emitted by the second light-emitting device 220 towards the first light-emitting device 210, thus improving the impact of the light emitted by the second light-emitting device 220 on the light emitted by the first light-emitting device 210. On the other hand, the reflective film 223 can reflect the side light emitted by the first light-emitting device 210 and may reflect the light back into the first light-emitting device 210, thereby reducing the viewing angle of the first light-emitting device 210 and improving the forward light emission effect of the first light-emitting device 210.

[0107] In some alternative embodiments, such as Figure 14 As shown, at least part of the second side surface 222 and the plane containing the substrate 100 form an angle k2 of 85 degrees to 95 degrees.

[0108] Depend on Figures 5 to 8 Analysis of the light-emitting principle of the first light-emitting device 210 shows that when Figure 14When the angle k2 between the second side surface 222 and the plane of the substrate 100 is close to 90 degrees, if the second light emitted by the second light-emitting device 220 can exit from the second side surface 222, the second light incident on the second side surface 222 within the second light-emitting device 220 can exit at a larger angle, increasing the angle between the second light emitted from the second light-emitting device 220 and the first direction Z, thereby increasing the side-emitting light amount of the second light-emitting device 220 and improving its privacy protection effect. If the second light is reflected by the second side surface 222 and exits from the second top surface 221, when the angle between the second side surface 222 and the plane of the substrate 100 is close to 90 degrees, the reflection from the second side surface 222 makes the angle between the light emitted from the second top surface 221 and the first direction Z even larger, making the emitted light from the second light-emitting device 220 more diffuse and providing better privacy protection.

[0109] There are several ways to set the relative positional relationship between the second light-emitting device 220 and the first light-emitting device 210, such as... Figure 1 As shown, for example, the second light-emitting device 220 can be located on one side of the first light-emitting device 210 in the second direction X and / or the third direction Y, or two second light-emitting devices 220 can be respectively disposed on both sides of the first light-emitting device 210 in the second direction X and / or the third direction Y. Alternatively, two or more second light-emitting devices 220 can be arranged at intervals around the first light-emitting device 210.

[0110] In other embodiments, such as Figure 15 and Figure 16 As shown, the second light-emitting device 220 is arranged in a closed ring around the first light-emitting device 210. This allows the second light-emitting device 220 to emit interference light at different positions around the first light-emitting device 210, further improving the privacy protection effect.

[0111] There are various ways to arrange the shapes of the first light-emitting device 210 and the second light-emitting device 220, such as... Figure 15 As shown, the orthographic projection of the first light-emitting device 210 along the first direction is circular, and the orthographic projection of the second light-emitting device 220 along the first direction is annular. Alternatively, as... Figure 16 As shown, the first light-emitting device 210 has a polygonal (e.g., rectangular) orthogonal projection along the first direction, and the second light-emitting device 220 has a polygonal ring shape with an orthogonal projection along the first direction.

[0112] When the second light-emitting device 220 is in a closed ring shape, such as Figure 17 As shown, the blocking part 400 is arranged in a closed ring around the first light-emitting device 210, so that the blocking part 400 can block the second light-emitting devices 220 of the first light-emitting device 210 in different directions within the light-emitting device group 200.

[0113] Optional, such as Figure 17 As shown, when the second light-emitting device 220 is in the shape of a closed ring, the orthographic projection edge of the first light-emitting device 210 on the substrate 100 and the orthographic projection edge of the second light-emitting device 220 on the substrate 100 are set at equal intervals, so that the brightness of the second light-emitting device 220 located at different positions around the first light-emitting device 210 is consistent, and the display effect of the display panel is more uniform from the side viewing angle.

[0114] Optional, such as Figure 17 As shown, the edge of the orthogonal projection of the blocking portion 400 on the substrate 100 is equally spaced from the edge of the orthogonal projection of the first light-emitting device 210 on the substrate 100, so that the blocking effect of the blocking portion 400 located at different positions around the first light-emitting device 210 on the second light-emitting device 220 is consistent, and the display effect of the display panel is more uniform from the side view.

[0115] There are various ways to configure the correspondence between the number of first light-emitting devices 210 and second light-emitting devices 220. For example, within the same light-emitting device group 200, one or more second light-emitting devices 220 can be arranged around a first light-emitting device 210, or the second light-emitting devices 220 can be arranged around one or more first light-emitting devices 210. Figure 17 As shown, a second light-emitting device 220 is arranged around a first light-emitting device 210. Alternatively, as... Figure 18 As shown, a second light-emitting device 220 is arranged around two or more second light-emitting devices 220, for example, a second light-emitting device 220 surrounds three first light-emitting devices 210, which are used to emit red light, green light and blue light respectively.

[0116] Optional, such as Figure 17 As shown, the first light-emitting device 210 and the second light-emitting device 220 in the light-emitting device group 200 are arranged in a one-to-one correspondence, that is, one second light-emitting device 220 is arranged around one first light-emitting device 210. For example, one second light-emitting device 220 surrounds one first light-emitting device 210 in a closed ring.

[0117] In these optional embodiments, the first light-emitting device 210 and the second light-emitting device 220 can emit light of the same color, which facilitates the fabrication of the display panel. Furthermore, when the first light-emitting device 210 and the second light-emitting device 220 emit light of the same color, they can be fabricated in the same process step, improving the fabrication efficiency of the first light-emitting device 210 and the second light-emitting device 220.

[0118] In some embodiments, please continue reading Figures 10 to 13 ,and Figure 19As shown, both the first light-emitting device 210 and the second light-emitting device 220 include a buffer layer 500. Within the same light-emitting device group 200, the buffer layers 500 of the second light-emitting device 220 and the first light-emitting device 210 are continuously arranged.

[0119] During the fabrication of the first light-emitting device 210 and the second light-emitting device 220, the first light-emitting device 210 and the second light-emitting device 220 can be fabricated on the same buffer material layer, and then cut to form the first light-emitting device 210 and the second light-emitting device 220, which can improve the fabrication efficiency of the first light-emitting device 210 and the second light-emitting device 220. Furthermore, the buffer layer 500 of the first light-emitting device 210 and the second light-emitting device 220 is continuous, and the first light-emitting device 210 and the second light-emitting device can belong to the same transfer unit. During the picking process of the first light-emitting device 210 and the second light-emitting device 220, the first light-emitting device 210 and the second light-emitting device 220 can be picked up simultaneously and transferred synchronously to the same light-emitting device group 200, which can improve the transfer efficiency of the first light-emitting device 210 and the second light-emitting device 220.

[0120] In some embodiments, such as Figure 20 As shown, buffer layers 500 are spaced apart from each other between different light-emitting device groups 200. In these optional embodiments, different light-emitting device groups 200 can be used to emit light of different colors and transfer them in different transfer steps.

[0121] like Figure 19 and Figure 20 As shown, within the same group of light-emitting devices 200, the maximum distance between the first light-emitting device 210 and the second light-emitting device 220 is less than or equal to 5 μm. In some embodiments, for example, the first light-emitting device 210 and the second light-emitting device 220 can be formed on the same substrate, and then etched to form the first light-emitting device 210 and the second light-emitting device 220, so that the distance between the first light-emitting device 210 and the second light-emitting device 220 within the same group of light-emitting devices 200 is relatively close, which facilitates synchronous pickup within the same group of light-emitting devices 200. Retaining the buffer layer 500 during the etching process of the first light-emitting device 210 and the second light-emitting device 220, i.e., not etching the buffer layer 500, ensures the connection strength between the first light-emitting device 210 and the second light-emitting device 220. This also allows the first light-emitting device 210 and the second light-emitting device 220 to be transferred to the driving backplane in the same transfer step.

[0122] like Figure 21As shown, an embodiment of the second aspect of this application also provides a display device 10, which includes the display panel 100 of any of the embodiments of the first aspect described above. Since the display device 10 provided in the second aspect of this application includes the display panel 100 of any of the embodiments of the first aspect described above, the display device 10 provided in the second aspect of this application has the beneficial effects of the display panel 100 of any of the embodiments of the first aspect described above, which will not be repeated here.

[0123] The display device 10 in this application embodiment includes, but is not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0124] Please see Figure 22 , Figure 22 This is a flowchart illustrating a method for controlling a display panel according to an embodiment of the third aspect of this application.

[0125] like Figure 22 As shown, an embodiment of the third aspect of this application provides a method for controlling a display panel, the method being used to control the above-mentioned... Figures 1 to 20 The control method for the display panel of any embodiment of the first aspect includes:

[0126] Step S01: Obtain the display mode of the display panel.

[0127] Step S02: Control the first light-emitting device to be in the first working state through the first driving circuit according to the display mode.

[0128] Step S03: Control the second light-emitting device to the second working state through the second driving circuit according to the display mode.

[0129] There are several ways to set the order of steps S02 and S03. For example, step S02 can be performed before or after step S03, or steps S02 and S03 can be performed simultaneously.

[0130] In the control method provided in this application embodiment, the operating states of the first light-emitting device and the second light-emitting device can be controlled respectively by the first driving circuit and the second driving circuit according to the display mode of the display panel. That is, the first light-emitting device and the second light-emitting device can be in different operating modes independently of each other. As mentioned above, the second light-emitting device is arranged around the first light-emitting device. The second light-emitting device is used to realize the side light emission of the display panel, and the first light-emitting device is used to realize the front light emission of the display panel. By adjusting the operating states of the first light-emitting device and the second light-emitting device, privacy protection or normal display can be achieved.

[0131] In some optional embodiments, when the display mode is the first mode, in step S02: the first light-emitting device is controlled by the first driving circuit to display the first image information in the first working state. In step S03: the second light-emitting device is controlled by the second driving circuit to display the second image information in the second working state, and the first image information and the second image information are different.

[0132] The first mode is, for example, the privacy mode. The first image information is the target image information, which allows the user to see the target image from a frontal view. The second image information can be the interference image information, which allows the interference image information to be observed from a side view.

[0133] There are various ways to set the second image information. For example, the second image information can be light emission information that is different from the first image information. In privacy mode, the first and second light emission devices are used to display different light emission information. From a side view, the light emitted by the second light emission device can interfere with the light emitted by the first light emission device, making it difficult to clearly distinguish the light emitted by the first light emission device. However, from a front view, since there is no interference from the second light emission device, the target image information can be displayed more clearly, thus achieving privacy from a side view.

[0134] In other embodiments, the second image information is dark-state information that turns off the second light-emitting device. From a side viewpoint, since the second light-emitting device is off, display information cannot be obtained. However, from a front viewpoint, without interference from the second light-emitting device, the target image information can be displayed more clearly, thus achieving privacy protection from a side viewpoint.

[0135] When the display mode is the second display mode, in step S02: the first driving circuit controls the first light-emitting device to display the first image information in the first working state. In step S03: the second driving circuit controls the second light-emitting device to display the second image information in the second working state, and the first image information and the second image information are the same.

[0136] The second display mode is, for example, the normal display mode. When the display mode is the second display mode, the image information displayed by the first light-emitting device and the second light-emitting device is the same. Therefore, the display information observed by the user is the same under both the frontal and side viewing angles, enabling the display panel to achieve normal display.

[0137] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a light-emitting device group located on one side of the substrate, the light-emitting device group comprising a first light-emitting device and a second light-emitting device arranged at least partially around the first light-emitting device; a driving circuit comprising a first driving circuit for driving the first light-emitting device and a second driving circuit for driving the second light-emitting device, a shielding part located on the side of the light-emitting device group away from the substrate, the shielding part at least partially overlapping the second light-emitting device in the orthographic projection of the substrate, and the shielding part and the first light-emitting device being arranged in a staggered manner in the orthographic projection of the substrate; a first electrode and a second electrode, one of the first electrode and the second electrode being connected to the second driving circuit and used for driving the second light-emitting device to emit light, wherein the area of the orthographic projection of the shielding part on the substrate is smaller than the area of the orthographic projection of the second light-emitting device on the substrate, the second light-emitting device comprises a first region overlapping the shielding part in a first direction and a second region not overlapping the shielding part in the first direction, the first region being located on the side of the second region close to the first light-emitting device, the first direction being perpendicular to the plane on which the display panel is located, at least one of the first electrode and the second electrode being arranged side by side with the shielding part on the side of the second light-emitting device away from the substrate, and the first electrode and / or the second electrode being located in the second region.

2. The display panel of claim 1, wherein, The first light-emitting device comprises a first top surface away from the substrate, a first bottom surface facing the substrate, and a first side surface connected to the first top surface and the first bottom surface, the first top surface being a light-emitting surface, and the included angle between the first side surface and the first bottom surface being an obtuse angle.

3. The display panel of claim 2, wherein, Further comprising a reflective layer covering at least part of the first side surface.

4. The display panel of claim 2, wherein, At least part of the first side surface is a light-blocking surface.

5. The display panel of claim 1, wherein, The second light-emitting device comprises a second top surface away from the substrate, the shielding part being in contact with the second top surface, and the width of the first electrode and / or the second electrode arranged side by side with the shielding part in the direction from the second light-emitting device to the first light-emitting device being equal to the width of the shielding part.

6. The display panel of claim 5, wherein, One of the first electrode and the second electrode is arranged side by side with the shielding part on the second top surface, and the other is located on the side of the second light-emitting device away from the second top surface.

7. The display panel of claim 1, wherein, Further comprising a third electrode and a fourth electrode, at least one of the third electrode and the fourth electrode being connected to the first driving circuit and used for driving the first light-emitting device to emit light, and the third electrode and the fourth electrode being located on the side of the first light-emitting device facing the substrate.

8. The display panel of claim 1, wherein: the material of the shielding part comprises a light-blocking material and / or a reflective material; or the shielding part is a distributed Bragg reflector and is used for reflecting light emitted by the second light-emitting device.

9. The display panel of claim 1, wherein, The second light emitting device further comprises a second top surface on the side away from the substrate, and a second side surface connected to the second top surface and extending from the second top surface towards the substrate, at least part of the second side surface being a light emitting surface.

10. The display panel of claim 9, wherein, An angle between the at least part of the second side surface and a plane in which the substrate is located is 85 degrees to 95 degrees.

11. The display panel of claim 1, wherein, The second light emitting device is arranged in a closed loop around the first light emitting device.

12. The display panel of claim 11, wherein, The shielding portion is arranged in a closed loop around the first light emitting device.

13. The display panel of claim 1, wherein, One of the second light emitting devices is arranged around one or more of the first light emitting devices.

14. The display panel of claim 1, wherein, The first light emitting device and the second light emitting device each comprise a buffer layer, and the buffer layers of the first light emitting device and the second light emitting device in the same group of light emitting devices are arranged continuously.

15. The display panel of claim 14, wherein, The buffer layers of different groups of light emitting devices are arranged spaced apart.

16. A display device comprising: A display panel comprising any one of the display panels of claims 1-15.

17. A control method of a display panel, characterized by, The control method is used for controlling the display panel of any one of claims 1-15, and the control method comprises: obtaining a display mode of the display panel; controlling the first light emitting device to be in a first working state by a first driving circuit according to the display mode; controlling the second light emitting device to be in a second working state by a second driving circuit according to the display mode.

18. The control method according to claim 17, characterized by, When the display mode is a first mode, in the step of controlling the first light emitting device to be in the first working state by the first driving circuit according to the display mode: controlling the first light emitting device to display first image information in the first working state by the first driving circuit; in the step of controlling the second light emitting device to be in the second working state by the second driving circuit according to the display mode: controlling the second light emitting device to display second image information in the second working state by the second driving circuit, and the first image information and the second image information being different.

19. The control method according to claim 18, characterized by, The second image information is light emitting information different from the first image information, or the second image information is dark state information for turning off the second light emitting device.

20. The control method of claim 17, when the display mode is a second display mode, in the step of controlling the first light emitting device to be in the first working state by the first driving circuit according to the display mode: controlling the first light emitting device to display first image information in the first working state by the first driving circuit; in the step of controlling the second light emitting device to be in the second working state by the second driving circuit according to the display mode: controlling the second light emitting device to display second image information in the second working state by the second driving circuit, and the first image information and the second image information being the same.

Images