Display panel, driving method thereof, and display device

Abstract

Embodiments of the present application provide a display panel, a driving method thereof and a display device, and relate to the technical field of display, to solve the problem that the display mode of the existing display panel is relatively single. The display panel comprises a substrate, a light emitting element located on one side of the substrate, the light emitting element comprising a main light emitting element and an auxiliary light emitting element, and a light shielding layer located on the side of the light emitting element away from the substrate, the light shielding layer comprising a first opening corresponding to the main light emitting element, and the auxiliary light emitting element being located at the periphery of the main light emitting element.

Description

[Technical Field]

[0001] This invention relates to the field of display technology, and in particular to a display panel and its driving method, 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 these operations in public places, their personal information is easily leaked when accessing bank accounts, paying bills, or entering personal information, leading to risks of identity theft and privacy violations. Therefore, display devices with privacy protection features have received increasing attention.

[0003] For display panels, a grating structure is typically placed on the light-emitting side to form a privacy screen. This grating structure blocks light emitted from a wide viewing angle, thus narrowing the screen's viewing angle and achieving privacy protection. However, after adding the grating structure, the display panel remains in privacy mode indefinitely. This can be inconvenient when multiple people need to view the screen simultaneously, negatively impacting the user experience. [Summary of the Invention]

[0004] In view of this, embodiments of the present invention provide a display panel and its driving method and display device to solve the problem that the display modes of existing display panels are relatively limited.

[0005] On one hand, embodiments of the present invention provide a display panel, including:

[0006] Substrate;

[0007] A light-emitting element located on one side of the substrate, the light-emitting element including a main light-emitting element and an auxiliary light-emitting element;

[0008] A light-shielding layer is located on the side of the light-emitting element facing away from the substrate. The light-shielding layer includes a first opening corresponding to the main light-emitting element, and the auxiliary light-emitting element is located around the main light-emitting element.

[0009] On the other hand, embodiments of the present invention provide a driving method for a display panel, used to drive the aforementioned display panel, wherein the display mode of the display panel includes a privacy mode and a sharing mode, and the driving method includes:

[0010] In the shared mode, both the main light-emitting element and the auxiliary light-emitting element emit light. In the privacy mode, the main light-emitting element emits light, and the auxiliary light-emitting element does not emit light.

[0011] In another aspect, embodiments of the present invention provide a display device, including the aforementioned display panel.

[0012] One of the above technical solutions has the following beneficial effects:

[0013] In this embodiment of the invention, by setting a light-shielding layer on the side of the light-emitting element away from the substrate, based on the relative positional relationship of the main light-emitting element, the auxiliary light-emitting element and the first opening, and the mutual coordination of the light-emitting states of the main light-emitting element and the auxiliary light-emitting element, the display panel can achieve mutual switching between different display modes.

[0014] Specifically, when both the main light-emitting element and the auxiliary light-emitting element emit light, the light emitted from the main light-emitting element exits through the first opening above it. This light travels at a narrow viewing angle, close to the normal viewing angle, as it exits the display panel. Simultaneously, the light emitted from the auxiliary light-emitting element exits through the first opening diagonally above it. This light travels at an angle, tending to travel at a wider viewing angle, as it exits the display panel. Therefore, under this control method, the two light sources give the display panel a larger viewing range. In this mode, the display panel is in shared viewing mode, allowing viewers to see the displayed image normally from different viewing angles.

[0015] When only the main light-emitting element is controlled to emit light, and the auxiliary light-emitting element does not emit light, only the light emitted by the main light-emitting element shines out of the display panel through the first opening. Since this part of the light tends to be transmitted along the normal viewing angle, the display panel will only have a narrower viewing range. At this time, the display panel is in privacy mode, and the user can only see the display image at the normal viewing angle. The user cannot see the display image at the oblique viewing angle, thus protecting the user's privacy.

[0016] In summary, by setting a main light-emitting element and an auxiliary light-emitting element in the light-emitting element, and setting a light-shielding layer with a first opening above the light-emitting element, the light emission viewing angle range of the display panel can be adjusted by controlling the light emission state of the auxiliary light-emitting element, so that the display panel can switch between different display modes. The display mode control of the display panel is more flexible and the user experience is improved. [Attached Image Description]

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a top view of the display panel provided in an embodiment of the present invention;

[0019] Figure 2for Figure 1 A sectional view along the A1-A2 direction;

[0020] Figure 3 Another top view of the display panel provided in an embodiment of the present invention;

[0021] Figure 4 for Figure 3 A sectional view along the B1-B2 direction;

[0022] Figure 5 This is a schematic diagram of a display panel in shared mode provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a display panel in privacy mode provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram showing the connection between the pixel driving circuit, the mode control module, and the light-emitting element provided in an embodiment of the present invention.

[0025] Figure 8 A timing diagram provided in an embodiment of the present invention;

[0026] Figure 9 This is another schematic diagram showing the connection between the pixel driving circuit, the mode control module, and the light-emitting element provided in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of a control module provided in an embodiment of the present invention;

[0028] Figure 11 This is another timing diagram provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram showing the connection between the pixel driving circuit, the mode control module, the first reset control module, and the light-emitting element provided in an embodiment of the present invention.

[0030] Figure 13 This is a schematic diagram of a light-emitting element provided in an embodiment of the present invention;

[0031] Figure 14 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0032] Figure 15 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0033] Figure 16 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0034] Figure 17 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0035] Figure 18 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0036] Figure 19 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0037] Figure 20 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0038] Figure 21 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0039] Figure 22 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0040] Figure 23 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0041] Figure 24 This is a schematic diagram of another structure of the light-emitting element provided in an embodiment of the present invention;

[0042] Figure 25 This is a schematic diagram of a first opening provided in an embodiment of the present invention;

[0043] Figure 26 for Figure 25 A sectional view along the C1-C2 direction;

[0044] Figure 27 for Figure 25 A sectional view along the D1-D2 direction;

[0045] Figure 28 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention;

[0046] Figure 29 for Figure 28 A sectional view along the E1-E2 direction;

[0047] Figure 30 This is a schematic diagram of light transmission provided in an embodiment of the present invention;

[0048] Figure 31 This is another schematic diagram of light transmission provided in an embodiment of the present invention;

[0049] Figure 32 This is a partial top view of the display panel provided in an embodiment of the present invention;

[0050] Figure 33 This is another partial top view of the display panel provided in an embodiment of the present invention;

[0051] Figure 34 This is another partial top view of the display panel provided in an embodiment of the present invention;

[0052] Figure 35 This is a schematic diagram showing the arrangement of the main light-emitting element and the auxiliary light-emitting element provided in an embodiment of the present invention;

[0053] Figure 36 This is a schematic diagram illustrating another arrangement of the main light-emitting element and the auxiliary light-emitting element provided in an embodiment of the present invention;

[0054] Figure 37 This is a schematic diagram of the structure of the first light-emitting element and the second light-emitting element provided in an embodiment of the present invention;

[0055] Figure 38 This is a schematic diagram of an auxiliary light-shielding layer provided in an embodiment of the present invention;

[0056] Figure 39 This is another structural schematic diagram of the auxiliary light-shielding layer provided in an embodiment of the present invention;

[0057] Figure 40 This is a schematic diagram of a bump and reflective layer provided in an embodiment of the present invention;

[0058] Figure 41 This is a schematic diagram of the arrangement of light-emitting elements provided in an embodiment of the present invention;

[0059] Figure 42 This is a partial cross-sectional view of the display panel provided in an embodiment of the present invention;

[0060] Figure 43 This is another partial cross-sectional view of the display panel provided in an embodiment of the present invention;

[0061] Figure 44 This is a partial top view of the display panel provided in an embodiment of the present invention;

[0062] Figure 45 This is another partial top view of the display panel provided in an embodiment of the present invention;

[0063] Figure 46 This is another partial top view of the display panel provided in an embodiment of the present invention;

[0064] Figure 47 This is yet another partial top view of the display panel provided in an embodiment of the present invention;

[0065] Figure 48 This is yet another partial top view of the display panel provided in an embodiment of the present invention;

[0066] Figure 49 This is another partial cross-sectional view of the display panel provided in an embodiment of the present invention;

[0067] Figure 50 This is a schematic diagram of a filter layer provided in an embodiment of the present invention;

[0068] Figure 51 A flowchart of a driving method provided in an embodiment of the present invention;

[0069] Figure 52 This is a schematic diagram of a display device provided in an embodiment of the present invention.

Detailed Implementation Methods

[0070] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0071] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0072] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0073] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0074] This invention provides a display panel, such as... Figure 1 and Figure 2 As shown, Figure 1 This is a top view of a display panel provided in an embodiment of the present invention. Figure 2 for Figure 1 A cross-sectional view along the A1-A2 direction shows that the display panel includes a substrate 1, a light-emitting element 2 located on one side of the substrate 1, and a light-shielding layer 3 located on the side of the light-emitting element 2 facing away from the substrate 1.

[0075] The light-emitting element 2 includes a main light-emitting element 21 and an auxiliary light-emitting element 22; the light-shielding layer 3 includes a first opening 4 corresponding to the main light-emitting element 21, and the auxiliary light-emitting element 22 is located around the main light-emitting element 21. See also... Figure 2 A functional film layer 5 may also be provided between the light-emitting element 2 and the light-shielding layer 3. The functional film layer 5 may include an encapsulation layer and an optical adhesive layer, etc.

[0076] It should be noted that the first opening 4 corresponding to the main light-emitting element 21 means that the first opening 4 is located directly above the main light-emitting element 21, and in the direction perpendicular to the plane of the substrate 1, the first opening 4 and the main light-emitting element 21 at least partially overlap.

[0077] When the auxiliary light-emitting element 22 is located around the main light-emitting element 21, the auxiliary light-emitting element 22 is offset from the first opening 4. That is, the first opening 4 is located diagonally above the auxiliary light-emitting element 22. In the direction perpendicular to the plane of the substrate 1, the distance between the center point of the auxiliary light-emitting element 22 and the center point of the first opening 4 is greater than the distance between the center point of the main light-emitting element 21 and the center point of the first opening 4.

[0078] Alternatively, in another formulation, the light-shielding layer 3 at least partially blocks the auxiliary light-emitting element 22 in a direction perpendicular to the plane of the substrate 1. See again, for an example. Figure 1 and Figure 2 When the area of ​​the first opening 4 is larger than the area of ​​the main light-emitting element 21, the main light-emitting element 21 is located within the first opening 4 in the direction perpendicular to the plane of the substrate 1. At this time, the light-shielding layer 3 partially blocks the auxiliary light-emitting element 22, and a small portion of the auxiliary light-emitting element 22 overlaps with the first opening 4. Or, as... Figure 3 and Figure 4 As shown, Figure 3 This is another top view of the display panel provided in an embodiment of the present invention. Figure 4 for Figure 3 In a cross-sectional view along the B1-B2 direction, when the area of ​​the first opening 4 is smaller than the area of ​​the main light-emitting element 21, a portion of the main light-emitting element 21 overlaps with the first opening 4 in the direction perpendicular to the plane of the substrate 1. At this time, the light-shielding layer 3 fully covers the auxiliary light-emitting element 22. That is, in the direction perpendicular to the plane of the substrate 1, the first opening 4 exposes at least a portion of the main light-emitting element 21, but the first opening 4 does not overlap with the auxiliary light-emitting element 22.

[0079] In this embodiment of the invention, by providing a light-shielding layer 3 on the side of the light-emitting element 2 away from the substrate 1, based on the relative positional relationship of the main light-emitting element 21, the auxiliary light-emitting element 22 and the first opening 4, and the mutual coordination of the light-emitting states of the main light-emitting element 21 and the auxiliary light-emitting element 22, the display panel can achieve mutual switching between different display modes.

[0080] Specifically, when both the main light-emitting element 21 and the auxiliary light-emitting element 22 emit light, such as Figure 5 As shown, Figure 5 This is a schematic diagram of light emission from a display panel in a shared mode according to an embodiment of the present invention. The arrows in the diagram indicate the direction and path of light propagation. The light emitted from the main light-emitting element 21 exits through the first opening 4 above it. This portion of the light propagates at a small viewing angle, close to the normal viewing angle, when exiting the display panel. Simultaneously, the light emitted from the auxiliary light-emitting element 22 exits through the first opening 4 diagonally above it. This portion of the light, when exiting the display panel, tends to propagate diagonally along a large viewing angle. Under this control method, these two portions of light give the display panel a larger viewing range. In this mode, the display panel is in shared mode, and viewers can normally view the displayed image from different viewing angles.

[0081] When only the main light-emitting element 21 is controlled to emit light, and the auxiliary light-emitting element 22 does not emit light, such as Figure 6 As shown, Figure 6 This is a schematic diagram of the display panel in privacy mode provided in an embodiment of the present invention. In this mode, only the light emitted by the main light-emitting element 21 passes through the first opening 4 and exits the display panel. Since this part of the light tends to be transmitted along the normal viewing angle, the display panel will only have a narrower viewing range. At this time, the display panel is in privacy mode, and the user can only view the display image at the normal viewing angle. The user cannot view the display image at the oblique viewing angle, thus protecting the user's privacy.

[0082] In summary, by setting a main light-emitting element 21 and an auxiliary light-emitting element 22 in the light-emitting element 2, and setting a light-shielding layer 3 with a first opening 4 above the light-emitting element 2, the light emission viewing angle range of the display panel can be adjusted by controlling the light emission state of the auxiliary light-emitting element 22, so that the display panel can switch between different display modes. The display mode control of the display panel is more flexible and the user experience is improved.

[0083] Furthermore, it should be noted that since users primarily view the displayed image from a direct viewing angle, whether in shared mode or privacy mode, the area of ​​the main light-emitting element 21 can be larger than the area of ​​the auxiliary light-emitting element 22 in this embodiment of the invention. This increases the brightness of the emitted light within the direct viewing angle range and optimizes the display effect of the display panel at the direct viewing angle. Moreover, within the same light-emitting element 2, the emitted light color of the main light-emitting element 21 and the auxiliary light-emitting element 22 can be the same.

[0084] In one feasible implementation, the display panel has two display modes: a privacy mode and a sharing mode. In the sharing mode, the main light-emitting element 21 emits light, and the auxiliary light-emitting element 22 also emits light. In the privacy mode, the main light-emitting element 21 emits light, and the auxiliary light-emitting element 22 does not emit light.

[0085] Based on the above analysis, in the sharing mode, by controlling both the main light-emitting element 21 and the auxiliary light-emitting element 22 to emit light, the display panel can have a wider viewing angle range, which can improve the viewing experience when multiple people are watching the displayed image at the same time; in the privacy mode, by controlling only the main light-emitting element 21 to emit light, the display panel can have a narrower viewing range, which can improve the privacy protection effect and ensure that the user's privacy is not leaked.

[0086] In one feasible implementation, such as Figure 7 As shown, Figure 7 This is a schematic diagram illustrating the connection between the pixel driving circuit 7, the mode control module 6, and the light-emitting element 2 provided in an embodiment of the present invention. The display panel further includes the mode control module 6, which controls the light-emitting state of the auxiliary light-emitting element 22 according to the display mode of the display panel. Specifically, in the sharing mode, the mode control module 6 controls the auxiliary light-emitting element 22 to emit light; in the privacy mode, the mode control module 6 controls the auxiliary light-emitting element 22 to not emit light.

[0087] The display panel also includes a pixel driving circuit 7, which is electrically connected to the main light-emitting element 21. The pixel driving circuit 7 is also electrically connected to the auxiliary light-emitting element 22 through the mode control module 6.

[0088] In one setup, combined with Figure 7 and Figure 8 , Figure 8 According to a timing diagram provided in an embodiment of the present invention, the pixel driving circuit 7 may include a driving transistor M0, a gate reset module 71, an anode reset module 72, a data writing module 73, a threshold compensation module 74, a first light emission control module 75, a third light emission control module 76, and a storage capacitor Cst.

[0089] The gate reset module 71 includes a gate reset transistor M1, which is electrically connected between the reset signal line Vref and the gate of the driving transistor M0. M1 is used to reset the gate of the driving transistor M0 in response to a low level provided by the first scan signal line Scan1. The anode reset module 72 includes an anode reset transistor M2, which is electrically connected between the reset signal line Vref and the main light-emitting element 21. M2 is used to reset the anode voltage of the main light-emitting element 21 in response to a low level provided by the second scan signal line Scan2.

[0090] The data writing module 73 includes a data writing transistor M3, which is electrically connected between the data line Data and the first terminal of the driving transistor M0. The threshold compensation module 74 includes a threshold compensation transistor M4, which is electrically connected between the second terminal of the driving transistor M0 and the gate of the driving transistor M0. The data writing transistor M3 and the threshold compensation transistor M4 are used to respond to a low level provided by the second scan signal line Scan2, writing a data voltage to the gate of the driving transistor M0 and performing threshold compensation on the driving transistor M0.

[0091] The first light-emitting control module 75 includes a first light-emitting control transistor M5, whose gate is electrically connected between the second terminal of the driving transistor M0 and the main light-emitting element 21. The third light-emitting control module 76 includes a third light-emitting control transistor M6, which is electrically connected between the power signal line PVDD and the first terminal of the driving transistor M0. The first light-emitting control transistor M5 and the third light-emitting control transistor M6 are used to transmit the driving current converted by the driving transistor M0 to the main light-emitting element 21 in response to a first enable level (low level) provided by the first light-emitting control signal line Emit1, thereby driving the main light-emitting element 21 to emit light.

[0092] In this configuration, the mode control module 6 can be an additional structure independent of the pixel driving circuit 7. In shared mode, the pixel driving circuit 7 responds to the first light emission control signal line Emit1 by providing a first enable level (low level), transmitting the driving current converted by the driving transistor M0 to the main light-emitting element 21, driving the main light-emitting element 21 to emit light. At the same time, the mode control module 6 controls the transmission path between the pixel driving circuit 7 and the auxiliary light-emitting element 22 to be open, thereby synchronously transmitting the driving current converted by the driving transistor M0 to the auxiliary light-emitting element 22, so as to drive the auxiliary light-emitting element 22 to emit light simultaneously. In privacy mode, the pixel driving circuit 7 responds to the first light emission control signal line Emit1 by providing a first enable level (low level), transmitting the driving current converted by the driving transistor M0 to the main light-emitting element 21, driving the main light-emitting element 21 to emit light, while the mode control module 6 controls the transmission path between the pixel driving circuit 7 and the auxiliary light-emitting element 22 to be closed, thereby preventing the driving current converted by the driving transistor M0 from flowing to the auxiliary light-emitting element 22, and controlling the auxiliary light-emitting element 22 not to emit light.

[0093] Based on the above structure, in the shared mode, the auxiliary light-emitting element 22 and the main light-emitting element 21 share the driving current provided by the same pixel driving circuit 7 to emit light. On the one hand, the light-emitting brightness of the auxiliary light-emitting element 22 and the main light-emitting element 21 is the same, which optimizes the light-emitting effect of a single light-emitting element 2. On the other hand, there is no need to set up an additional circuit structure for providing driving current to the auxiliary light-emitting element 22, which simplifies the circuit design of the display panel and the space occupied by the circuit in the display panel, and also helps to improve the pixel density.

[0094] In one feasible implementation, such as Figure 9 As shown, Figure 9 This is another schematic diagram showing the connection between the pixel driving circuit 7, the mode control module 6, and the light-emitting element 2 provided in an embodiment of the present invention. The display panel further includes the mode control module 6, which is used to control the light-emitting state of the auxiliary light-emitting element 22 according to the display mode of the display panel. Specifically, in the sharing mode, the mode control module 6 controls the auxiliary light-emitting element 22 to emit light, and in the privacy mode, the mode control module 6 controls the auxiliary light-emitting element 22 not to emit light.

[0095] The display panel also includes a pixel driving circuit 7, which includes a driving transistor M0, a first light-emitting control module 75, and a second light-emitting control module 77. The first light-emitting control module 75 is electrically connected between the second terminal of the driving transistor M0 and the main light-emitting element 21, and the second light-emitting control module 77 is electrically connected between the second terminal of the driving transistor M0 and the auxiliary light-emitting element 22. The mode control module 6 and the second light-emitting control module 77 are multiplexed.

[0096] The pixel driving circuit 7 may also include a gate reset module 71, an anode reset module 72, a data writing module 73, a threshold compensation module 74, and a third light emission control module 76. The specific structure and working principle of each module have been described in the above embodiments and will not be repeated here.

[0097] In this configuration, the mode control module 6 can be reused as the second light-emitting control module 77 within the pixel driving circuit 7. In shared mode, the first light-emitting control module 75 controls the transmission of the driving current converted by the driving transistor M0 to the main light-emitting element 21, driving the main light-emitting element 21 to emit light. Simultaneously, the second light-emitting control module 77 (mode control module 6) controls the transmission of the driving current converted by the driving transistor M0 to the auxiliary light-emitting element 22, driving the auxiliary light-emitting element 22 to emit light simultaneously. In privacy mode, the first light-emitting control module 75 controls the transmission of the driving current converted by the driving transistor M0 to the main light-emitting element 21, driving the main light-emitting element 21 to emit light, while the second light-emitting control module 77 (mode control module 6) controls the driving current converted by the driving transistor M0 to prevent it from flowing into the auxiliary light-emitting element 22, thus preventing the auxiliary light-emitting element 22 from emitting light.

[0098] Based on the above structure, in the shared mode, the auxiliary light-emitting element 22 and the main light-emitting element 21 still share the driving current provided by the same pixel driving circuit 7 to emit light. This not only makes the light-emitting brightness of the auxiliary light-emitting element 22 and the main light-emitting element 21 in the same light-emitting element 2 the same, but also optimizes the light-emitting effect of a single light-emitting element 2, simplifies the circuit design of the display panel, and helps to improve the pixel density.

[0099] Furthermore, see again Figure 7 and Figure 9 The second light-emitting control module 77 may specifically include a second light-emitting control transistor M7, which is electrically connected between the second electrode of the driving transistor M0 and the auxiliary light-emitting element 22. The second light-emitting control transistor M7 is used to be turned on in the shared mode and turned off in the privacy mode.

[0100] In one feasible implementation, see again Figure 7 and Figure 9 The pixel driving circuit 7 is electrically connected to the first light emission control signal line Emit1, and the mode control module 6 is electrically connected to the second light emission control signal line Emit2. Specifically, the gate of the first light emission control transistor M5 in the pixel driving circuit 7 is electrically connected to the first light emission control signal line Emit1, and the gate of the second light emission control transistor M7 is electrically connected to the second light emission control signal line Emit2.

[0101] like Figure 10 As shown, Figure 10This is a schematic diagram of a control module 8 provided in an embodiment of the present invention. The display panel further includes the control module 8, which is electrically connected to the first light-emitting control signal line Emit1 and the second light-emitting control signal line Emit2. The control module 8 is used to: in shared mode, generate and output a second enable level to the second light-emitting control signal line Emit2 based on the first enable level output by the first light-emitting control signal line Emit1; and in privacy mode, generate and output a second disable level to the second light-emitting control signal line Emit2 based on the first enable level or the first disable level output by the first light-emitting control signal line Emit1.

[0102] Specifically, in shared mode, when the first light-emitting control signal line Emit1 outputs a first enable level, the control module 8 can output a second enable level to the second light-emitting control signal line Emit2 according to the first enable level, so as to control the auxiliary light-emitting element 22 to emit light synchronously with the main light-emitting element 21, thereby expanding the viewing angle range. In privacy mode, regardless of whether the first light-emitting control signal line Emit1 outputs a first enable level or a first disable level, the control module 8 can output a second disable level to the second light-emitting control signal line Emit2, so that the auxiliary light-emitting element 22 does not emit light, thereby narrowing the viewing angle range.

[0103] Understandably, display panels typically require shift circuits to provide signals to signal lines such as the light emission control signal line and the scan signal line. Taking a light emission shift circuit electrically connected to the first light emission control signal line Emit1 as an example, the light emission shift circuit includes cascaded multi-stage shift units. Each shift unit transmits a first light emission control signal to multiple pixel driving circuits 7 electrically connected to the first light emission control signal line Emit1 through a first light emission control signal line Emit1. In conjunction with... Figure 14 In the indicated direction, multiple pixel driving circuits 7, which are electrically connected to a first light-emitting control signal line Emit1, can be arranged along the first direction x or along the second direction y.

[0104] In the above settings, please refer again. Figure 10 The display panel only needs to be equipped with a set of light-emitting shift circuits 9 including multi-level shift units 91 to provide the first light-emitting control signal to the first light-emitting control signal line Emit1. Then, the control module 8 provides the second light-emitting control signal to the second light-emitting control signal line Emit2 according to the first light-emitting control signal. There is no need to add a corresponding light-emitting shift circuit to the second light-emitting control signal line Emit2, thereby reducing the number of light-emitting shift circuits required in the display panel and helping to realize the narrow bezel design of the display panel.

[0105] Furthermore, the first enable level and the second enable level are both low levels, that is, the first light-emitting control transistor M5 and the second light-emitting control transistor M7 are P-type transistors.

[0106] See you again Figure 10 The control module 8 includes a NOR gate 81 and an inverter 82. The first input of the NOR gate 81 is electrically connected to the first light-emitting control signal line Emit1, and the second input is electrically connected to the control signal line Ctl. The control signal line Ctl provides a low level in shared mode and a high level in privacy mode. The NOR gate 81 outputs a low level when at least one of its first and second inputs receives a high level, and outputs a high level when both its first and second inputs receive a low level. The input of the inverter 82 is electrically connected to the output of the NOR gate 81, and the output of the inverter 82 is electrically connected to the second light-emitting control signal line Emit2.

[0107] Combination Figure 10 and Figure 11 , Figure 11 In another timing diagram provided by an embodiment of the present invention, in shared mode, when the control signal line Ctl outputs a low level, and the first light-emitting control signal line Emit1 outputs a high level, the NOR gate 81 outputs a low level, and the inverter 82 outputs a high level (second disallowed level) to the second light-emitting control signal line Emit2 according to the low level output by the NOR gate 81, controlling the auxiliary light-emitting element 22 not to emit light; when the first light-emitting control signal line Emit1 outputs a low level, the NOR gate 81 outputs a high level, and the inverter 82 outputs a low level (second enable level) to the second light-emitting control signal line Emit2 according to the high level output by the NOR gate 81, controlling the auxiliary light-emitting element 22 to emit light.

[0108] In privacy mode, the control signal line Ctl outputs a high level. At this time, regardless of whether the first light-emitting control signal line Emit1 outputs a high level or a low level, the NOR gate 81 outputs a low level. The inverter 82 outputs a high level (second disabling level) according to the low level output by the NOR gate 81, so as to control the auxiliary light-emitting element 22 to not emit light.

[0109] In one feasible implementation, such as Figure 12 As shown, Figure 12This is a schematic diagram illustrating the connection between the pixel driving circuit 7, the mode control module 6, the first reset control module 10, and the light-emitting element 2 provided in an embodiment of the present invention. The display panel further includes the first reset control module 10, which is electrically connected between the reset signal line and the auxiliary light-emitting element 22. Specifically, the first reset control module 10 may include a first reset transistor M8. The gate of the first reset transistor M8 is electrically connected to the second scan signal line Scan2, the first electrode of the first reset transistor M8 is electrically connected to the reset signal line Vref, and the second electrode of the first reset transistor M8 is electrically connected to the auxiliary light-emitting element 22.

[0110] When the second scan signal line Scan2 provides a level, the first reset control module 10 controls the connection path between the reset signal line Vref and the auxiliary light-emitting element 22 to be turned on. The anode potential of the auxiliary light-emitting element 22 is reset by using the reset signal, thereby initializing the anode potential of the auxiliary light-emitting element 22 and avoiding the residual potential of the previous frame from affecting the brightness of the auxiliary light-emitting element 22 in the current frame.

[0111] In one feasible implementation, such as Figure 13 As shown, Figure 13 This is a schematic diagram of a structure of the light-emitting element 2 provided in an embodiment of the present invention. The auxiliary light-emitting element 22 includes two first sub-auxiliary light-emitting elements 221. The two first sub-auxiliary light-emitting elements 221 are respectively located on both sides of the main light-emitting element 21 in the first direction x, and the first direction x is parallel to the plane where the substrate 1 is located.

[0112] It should be noted that, Figure 13 The 0° angle corresponds to the viewer's position when they are on the right side of the display panel; 90° corresponds to the viewer's position when they are on the top side of the display panel (e.g., when the display panel is placed lower and the viewer looks down to see the image); 180° corresponds to the viewer's position when they are on the left side of the display panel; and 270° corresponds to the viewer's position when they are on the bottom side of the display panel (e.g., when the display panel is placed higher and the viewer looks up to see the image). In this embodiment of the invention, the first direction x can specifically refer to the direction corresponding to 0° or the direction corresponding to 180°. In other words, there is a straight line extending along the first direction x on the plane where the display panel is located. Figure 13 The 0°, 90°, 180° and 270° shown can be understood as the angle between the orthographic projection of the line of sight onto the plane of the display panel and the line.

[0113] In the sharing mode, whether it is a mobile phone or a computer, when other viewers are watching the displayed image at the same time, they mostly watch the movie from the left and right sides of the display panel. In this embodiment of the invention, by setting two first sub-auxiliary light-emitting elements 221 on both sides of the main light-emitting element 21 in the first direction x, when the two first sub-auxiliary light-emitting elements 221 emit light in the sharing mode, the light output brightness of the display panel at a wide viewing angle on the left and right sides can be improved, thereby improving the viewing experience of the moviegoers in the sharing mode.

[0114] Furthermore, such as Figure 14 As shown, Figure 14 This is another structural schematic diagram of the light-emitting element 2 provided in an embodiment of the present invention. The auxiliary light-emitting element 22 further includes a second sub-auxiliary light-emitting element 222. The second sub-auxiliary light-emitting element 222 is located on one side of the main light-emitting element 21 in the second direction y. The second direction y is parallel to the plane where the substrate 1 is located, and the second direction y intersects with the first direction x.

[0115] In shared mode, viewers not only watch from the left and right sides of the display panel, but also frequently from the top of the display panel. For example, if the display panel is placed on a desk and the viewer stands to watch the screen, this can be considered as the viewer watching from the top of the display panel. In this embodiment of the invention, the second direction y can refer to the direction corresponding to 270°, that is, the direction on the plane of the substrate 1. The second sub-auxiliary light-emitting element 222 is placed below the main light-emitting element 21. At this time, in shared mode, when the light emitted by the second sub-auxiliary light-emitting element 222 passes through the first opening 4, it tends to be emitted towards a 90° viewing angle, thus improving the light output brightness at the top viewing angle of the display panel, which is beneficial to improving the viewer's viewing experience in shared mode.

[0116] In one feasible implementation, such as Figure 15 As shown, Figure 15 This is a schematic diagram of another structure of the light-emitting element 2 provided in an embodiment of the present invention. The auxiliary light-emitting element 22 includes a strip-shaped light-emitting portion 223. Along a direction parallel to a third direction and extending from both ends of the strip-shaped light-emitting portion 223 to its center, the distance between the strip-shaped light-emitting portion 223 and the main light-emitting element 21 gradually decreases. The third direction is perpendicular to the arrangement direction of the strip-shaped light-emitting portion 223 and the main light-emitting element 21. For example, when the strip-shaped light-emitting portion 223 is located on one side of the main light-emitting element 21 in the first direction x, the third direction is the second direction y; when the strip-shaped light-emitting portion 223 is located on one side of the main light-emitting element 21 in the second direction y, the third direction is the first direction x.

[0117] In another way of expressing it, see again. Figure 15In a direction perpendicular to the plane of substrate 1, the orthographic projection of the strip-shaped light-emitting portion 223 includes a first device edge 224 near the main light-emitting element 21. The first device edge 224 is an arc-shaped edge and protrudes towards the main light-emitting element 21. Alternatively, in a direction perpendicular to the plane of substrate 1, the orthographic projection of the auxiliary light-emitting element 22 includes a first device edge 224 near the main light-emitting element 21. The first device edge 224 includes a third point A3 and a fourth point A4. The distance between the third point A3 and the main light-emitting element 21 is less than the distance between the fourth point A4 and the main light-emitting element 21. The minimum distance from the third point A3 to the end of the strip-shaped light-emitting portion 223 is greater than the minimum distance from the fourth point A4 to the end of the strip-shaped light-emitting portion 223.

[0118] When the first device edge 224 of the strip-shaped light-emitting part 223 is a straight edge, the distance between different points on the first device edge 224 and the edge of the first opening 4 away from the strip-shaped light-emitting part 223 is the same. Therefore, in the sharing mode, the light emitted from different points on the first device edge 224 will have approximately the same transmission angle when it is emitted through the edge of the first opening 4. This causes the brightness at a certain viewing angle to suddenly decrease as the viewing angle moves from a positive angle to a larger viewing angle, resulting in a sudden change in brightness. However, in this embodiment of the invention, the first device edge 224 of the strip-shaped light-emitting part 223 is set as an arc-shaped edge protruding towards the main light-emitting element 21. On the one hand, the distance between the position points of the protruding part and the position points of the non-protruding part of the first device edge 224 and the edge of the first opening 4 away from the strip-shaped light-emitting part 223 is different. In this way, the light emitted from different points on the first device edge 224 will have different transmission angles when it is emitted through the edge of the first opening 4, thereby effectively weakening the phenomenon of sudden changes in brightness at different viewing angles. On the other hand, the protruding part of the strip-shaped light-emitting portion 223 is closer to the main light-emitting element 21, that is, closer to the first opening 4. Thus, when the display panel is in shared mode, the light emitted from the protruding part of the strip-shaped light-emitting portion 223, after passing through the first opening 4, can increase the display brightness of the display panel at wide viewing angles, thereby improving the display effect of the display panel in shared mode. Furthermore, given current manufacturing capabilities, the process of creating a film layer with a concave edge is quite difficult. Therefore, setting the first device edge 224 of the strip-shaped light-emitting portion 223 as an arc-shaped edge protruding towards the main light-emitting element 21 can reduce the manufacturing difficulty of the strip-shaped light-emitting portion 223. Moreover, through the design of this embodiment, the coverage area of ​​the auxiliary light-emitting element 22 can become increasingly larger along the direction away from the main light-emitting element 21 or the first opening 4, thereby compensating for the brightness difference caused by the attenuation of light passing through the first opening 4 in the direction away from the first opening 4.

[0119] Furthermore, it should be noted that when the auxiliary light-emitting element 22 includes multiple strip-shaped light-emitting portions 223, the multiple strip-shaped light-emitting portions 223 can be arranged independently and without communication with each other. For example, see [link to example]. Figure 15 The auxiliary light-emitting element 22 includes two strip-shaped light-emitting portions 223, which are respectively located on both sides of the main light-emitting element 21 in the first direction x. Alternatively, at least some of the strip-shaped light-emitting portions 223 may be connected, for example, as shown in... Figure 16 As shown, Figure 16 This is another structural schematic diagram of the light-emitting element 2 provided in the embodiment of the present invention. The auxiliary light-emitting element 22 includes four strip-shaped light-emitting parts 223, which are connected end to end in sequence, so that the auxiliary light-emitting element 22 has a closed structure surrounding the main light-emitting element 21.

[0120] In one feasible implementation, see again Figure 13 One edge of the auxiliary light-emitting element 22 is adjacent to one edge of the main light-emitting element 21, and the adjacent edges of the two are straight edges. That is, the edge of the auxiliary light-emitting element 22 facing the main light-emitting element 21 is a straight edge, and the edge of the main light-emitting element 21 facing the auxiliary light-emitting element 22 is also a straight edge. The opposite edges of the auxiliary light-emitting element 22 and the main light-emitting element 21 are parallel and adjacent.

[0121] When the auxiliary light-emitting element 22 is located around the main light-emitting element 21, in order to improve the brightness uniformity of different viewing angles in the shared mode, the distance between the auxiliary light-emitting element 22 and the main light-emitting element 21 can be set to be equal. However, based on current process capabilities, the process of a film layer with concave edges is quite difficult. Therefore, compared to setting one of the opposing edges of the auxiliary light-emitting element 22 and the main light-emitting element 21 as a convex edge and the other as a concave edge, this embodiment of the invention uses straight lines for the opposing edges of the auxiliary light-emitting element 22 and the main light-emitting element 21, which makes it easier to achieve parallelism, i.e., it is easier to achieve uniformity of the distance between the auxiliary light-emitting element 22 and the main light-emitting element 21.

[0122] In one feasible implementation, such as Figure 17 As shown, Figure 17 This is another structural schematic diagram of the light-emitting element 2 provided in the embodiment of the present invention. Along the direction from the main light-emitting element 21 to the auxiliary light-emitting element 22, the auxiliary light-emitting element 22 is tilted in the direction toward the light-emitting surface of the display panel. In other words, along the direction from the main light-emitting element 21 to the auxiliary light-emitting element 22, the distance between the auxiliary light-emitting element 22 and the substrate 1 increases.

[0123] When two adjacent light-emitting elements 2 are used to emit light of different colors, the light emitted obliquely from the auxiliary light-emitting element 22 may exit through the first opening 4 corresponding to the adjacent light-emitting element 2, thereby causing crosstalk between different colors of light. Therefore, in this embodiment of the invention, by tilting the auxiliary light-emitting element 22, the oblique light emitted by the auxiliary light-emitting element 22 can be made to exit through the first opening 4 corresponding to the light-emitting element 2 more likely, thus reducing the crosstalk phenomenon.

[0124] In addition, it should be noted that, see again Figure 17 The display panel may also include a pad height 11, which is located between the auxiliary light-emitting element 2 and the substrate 1. The surface of the pad height 11 away from the substrate 1 is an inclined surface to achieve the inclined setting of the auxiliary light-emitting element 22.

[0125] In one feasible implementation, such as Figures 18-20 As shown, Figure 18 This is a schematic diagram of another structure of the light-emitting element 2 provided in an embodiment of the present invention. Figure 19 This is a schematic diagram of another structure of the light-emitting element 2 provided in an embodiment of the present invention. Figure 20 This is another structural schematic diagram of the light-emitting element 2 provided in an embodiment of the present invention, wherein the auxiliary light-emitting element 22 surrounds the main light-emitting element 21.

[0126] In one setup, see again Figure 18 The auxiliary light-emitting element 22 can partially surround the main light-emitting element 21, that is, the auxiliary light-emitting element 22 is a semi-closed shape. In this structure, the auxiliary light-emitting element 22 can be located at least on one side of the main light-emitting element 21 in the first direction x and the second direction y. Combined with the above analysis, the light output brightness of the display panel can be effectively improved in the top, left and right viewing angles.

[0127] Alternatively, see again in another setup method. Figure 19 and Figure 20 The auxiliary light-emitting element 22 can also surround the main light-emitting element 21. In this case, the auxiliary light-emitting element 22 can be... Figure 19 The closed figure shown, or, could also be Figure 20 As shown, the auxiliary light-emitting element 22 includes a plurality of spaced sub-auxiliary light-emitting elements 225, which surround the main light-emitting element 21. In this structure, the auxiliary light-emitting element 22 surrounds the main light-emitting element 21 in all directions. In the shared mode, the auxiliary light-emitting element 22 increases the viewing angle range in all directions and also helps to improve the brightness uniformity of the display panel at different viewing angles.

[0128] In one feasible implementation, such as Figure 21 and Figure 22As shown, Figure 21 This is a schematic diagram of another structure of the light-emitting element 2 provided in an embodiment of the present invention. Figure 22 This is another structural schematic diagram of the light-emitting element 2 provided in the embodiment of the present invention. In the direction perpendicular to the plane where the substrate 1 is located, the orthogonal projection of the main light-emitting element 21 is a circle, an ellipse or a near-circular polygon.

[0129] When the main light-emitting element 21 adopts the aforementioned circular, elliptical, or near-circular polygonal design, on the one hand, when ambient light enters the display panel through the first opening 4 and is reflected to the human eye, the diffraction fringes produced by the reflected light are mostly circular fringes, thus weakening the diffraction phenomenon and avoiding starburst effects. On the other hand, if the main light-emitting element 21 is a long and narrow rectangular shape, the length of its diagonal will be significantly greater than the length of its short side. Consequently, the amount of light emitted through the first opening 4 from the main light-emitting element 21 will vary significantly depending on the orientation, resulting in noticeable brightness differences at different viewing angles. By designing the main light-emitting element 21 as a circular or near-circular structure, the lengths of each side and diagonal of the main light-emitting element 21 tend to be consistent, thus ensuring consistent brightness at different viewing angles and effectively improving the brightness uniformity of the display panel at different viewing angles.

[0130] In addition, it should be noted that when the main light-emitting element 21 adopts the above design, the auxiliary light-emitting element 22 can surround the main light-emitting element 21 along the edge of the main light-emitting element 21 in order to better achieve the consistency of the spacing between the auxiliary light-emitting element 22 and the main light-emitting element 21.

[0131] In one feasible implementation, such as Figure 23 and Figure 24 As shown, Figure 23 This is a schematic diagram of another structure of the light-emitting element 2 provided in an embodiment of the present invention. Figure 24 This is another schematic diagram of the structure of the light-emitting element 2 provided in an embodiment of the present invention. The edge of the main light-emitting element 21 near the auxiliary light-emitting element 22 includes a first concave-convex structure 211, and the edge of the auxiliary light-emitting element 22 near the main light-emitting element 21 includes a second concave-convex structure 226. The concave portion of the first concave-convex structure 211 surrounds the convex portion of the second concave-convex structure 226, and the concave portion of the second concave-convex structure 226 surrounds the convex portion of the first concave-convex structure 211. That is, the opposing edges of the main light-emitting element 21 and the auxiliary light-emitting element 22 engage with each other.

[0132] In one setup method, see Figure 23 The edges of the main light-emitting element 21 and the auxiliary light-emitting element 22 are respectively wavy edges, or, in another arrangement, see [reference needed]. Figure 24 The edges of the main light-emitting element 21 and the auxiliary light-emitting element 22 are respectively polygonal edges.

[0133] If the edge of the main light-emitting element 21 is a straight edge, the light emitted from the edge of the main light-emitting element 21 has a significant impact on the brightness at different viewing angles. For example, when adjusting from a normal viewing angle to an oblique viewing angle, a sudden change in brightness may occur. However, by setting the edge of the main light-emitting element 21 to a concave-convex structure, the light emitted from different points on the concave-convex edge of the main light-emitting element 21 propagates in different directions, which can mitigate the problem of sudden changes in brightness at different viewing angles. Furthermore, by further setting the edge of the auxiliary light-emitting element 22 to a concave-convex structure and making the edges of the two interlock, in the sharing mode, the light emitted from the protruding part of the auxiliary light-emitting element 22 can be used to compensate for the light emitted less from the concave part of the main light-emitting element 21, thereby further improving the brightness uniformity at different viewing angles.

[0134] In one feasible implementation, such as Figures 25-27 As shown, Figure 25 This is a schematic diagram of a structure of the first opening 4 provided in an embodiment of the present invention. Figure 26 for Figure 25 A sectional view along the C1-C2 direction. Figure 27 for Figure 25 A cross-sectional view along the D1-D2 direction shows that, in a direction perpendicular to the plane of the substrate 1, the orthographic projection of the main light-emitting element 21 includes a first edge 212 extending along a first direction x and a second edge 213 extending along a second direction y. The first direction x and the second direction y are parallel to the plane of the substrate 1, and the first direction x and the second direction y intersect. In the second direction y, the distance between the first edge 212 and the edge of its adjacent first opening 4 is A, and in the first direction x, the distance between the second edge 213 and the edge of its adjacent first opening 4 is B, where B < A.

[0135] As mentioned above, the first direction x can specifically refer to the direction corresponding to 0° or 180°. In privacy mode, the primary purpose is to prevent people on the left or right sides from viewing the displayed image. Therefore, combined with... Figure 26 and Figure 27 By reducing the distance B between the second edge 213 and the edge of the adjacent first opening 4, the amount of light emitted by the main light-emitting element 21 on one side of the second edge 213 that can be emitted through the first opening 4 can be reduced, thereby further narrowing the visible angle range between 0° and 180° (left and right sides) and further improving the privacy protection effect.

[0136] In one feasible implementation, such as Figure 28 and Figure 29 As shown, Figure 28 This is a schematic diagram of another structure of the display panel provided in an embodiment of the present invention. Figure 29 for Figure 28 A cross-sectional view along the E1-E2 direction shows that the light-emitting element 2 includes at least two main light-emitting elements 21, with an auxiliary light-emitting element 22 spaced between any two main light-emitting elements 21.

[0137] For a larger area light-emitting element 2, if a single light-emitting element 2 includes only one main light-emitting element 21, then the area of ​​the first opening 4 corresponding to the main light-emitting element 21 also needs to be set to be larger. For example... Figure 30 As shown, Figure 30 This is a schematic diagram of light transmission provided by an embodiment of the present invention. In this case, if the light-shielding layer 3 and the light-emitting element 2 are close together, in privacy mode, the light emitted from the edge of the main light-emitting element 21 will be transmitted along the wide viewing angle direction when it exits through the edge of the first opening 4, thereby giving the display panel a large viewing angle range and resulting in poor privacy protection. However, if the viewing angle range is reduced by increasing the distance between the light-shielding layer 3 and the light-emitting element 2, the thickness of the functional film layer 5 between the light-shielding layer 3 and the light-emitting element 2 needs to be set very thick. In this way, the light emitted from the main light-emitting element 21 will experience greater loss when transmitted within the functional film layer 5, thereby affecting the brightness.

[0138] To address this, in this embodiment of the invention, by arranging multiple main light-emitting elements 21 in the light-emitting element 2, and by spacing auxiliary light-emitting elements 22 between the multiple main light-emitting elements 21, the area of ​​each main light-emitting element 21 can be reduced, and the area of ​​the first opening 4 corresponding to each main light-emitting element 21 can be reduced accordingly. Figure 31 As shown, Figure 31 This is another schematic diagram of light transmission provided by an embodiment of the present invention. In this case, even without increasing the distance between the light-shielding layer 3 and the light-emitting element 2, the display panel can still have a narrower viewing angle in privacy mode, thereby narrowing the viewing angle and improving the privacy effect. In other words, since the distance between the light-shielding layer 3 and the light-emitting element 2 does not need to be set too large under this arrangement, the light loss of the functional film layer 5 can also be reduced, the light extraction efficiency can be improved, and thus the luminous brightness of the light-emitting element 2 can be increased.

[0139] Furthermore, by spacing auxiliary light-emitting elements 22 between any two main light-emitting elements 21, at least two main light-emitting elements 21 can be dispersed within the area where the light-emitting element 2 is located, avoiding situations where some areas are too bright and others are too dark in privacy mode, thus improving brightness uniformity. On the other hand, in shared mode, the light emitted by the auxiliary light-emitting element 22 can simultaneously pass through the first opening 4 corresponding to at least two main light-emitting elements 21, further improving display uniformity under different viewing angles in shared mode.

[0140] Furthermore, such as Figure 32 and Figure 33As shown, Figure 32 This is a partial top view of the display panel provided in an embodiment of the present invention. Figure 33 This is another partial top view of the display panel provided in an embodiment of the present invention. The display panel further includes a pixel driving circuit 7, and at least two main light-emitting elements 21 are electrically connected to at least two pixel driving circuits 7 in a one-to-one correspondence.

[0141] See Figure 32 The auxiliary light-emitting element 22 can share the pixel driving circuit 7 with one of the main light-emitting elements 21. In this shared mode, the auxiliary light-emitting element 22 and one of the main light-emitting elements 21 receive the same driving current provided by the pixel driving circuit 7, and the brightness of the auxiliary light-emitting element 22 is the same as that of the main light-emitting element 21. This arrangement eliminates the need for a separate pixel driving circuit 7 for the auxiliary light-emitting element 22, reducing the number of pixel driving circuits 7 required in the display panel.

[0142] Or see Figure 33 The auxiliary light-emitting element 22 can also be electrically connected to a separate pixel driving circuit 7. In this case, in the shared mode, the driving current provided by different pixel driving circuits 7 to the main light-emitting element 21 or the auxiliary light-emitting element 22 that are electrically connected to it can be the same or different, thereby improving the flexibility of setting the light emission brightness of different main light-emitting elements 21.

[0143] Or, such as Figure 34 As shown, Figure 34 This is another partial top view of the display panel provided in an embodiment of the present invention. The display panel further includes a pixel driving circuit 7, and at least two main light-emitting elements 21 are electrically connected to the same pixel driving circuit 7. In this case, at least two main light-emitting elements 21 share one pixel driving circuit 7, which greatly reduces the number of pixel driving circuits 7 required in the display panel and helps to improve pixel density. Of course, in this structure, the auxiliary light-emitting element 22 can also be electrically connected to the pixel driving circuit 7, so that both the main light-emitting element 21 and the auxiliary light-emitting element 22 in the light-emitting element 2 share one pixel driving circuit 7.

[0144] It should be noted that when the light-emitting element 2 includes at least two main light-emitting elements 21, it can also be understood that the original large-area main light-emitting element 21 in the light-emitting element 2 is divided into multiple smaller-area and dispersed sub-light-emitting elements.

[0145] In one feasible implementation, such as Figure 35 and Figure 36 As shown, Figure 35 This is a schematic diagram showing an arrangement of the main light-emitting element 21 and the auxiliary light-emitting element 22 provided in an embodiment of the present invention. Figure 36This is a schematic diagram of another arrangement of the main light-emitting element 21 and the auxiliary light-emitting element 22 provided in an embodiment of the present invention. The auxiliary light-emitting element 22 includes at least two notches 12, and the at least two notches 12 correspond one-to-one with at least two main light-emitting elements 21. At least a portion of the main light-emitting element 21 is located in the notch 12 corresponding to it.

[0146] In this configuration, by placing at least a portion of the main light-emitting element 21 within the recess 12 of the auxiliary light-emitting element 22, the main light-emitting element 21 and the auxiliary light-emitting element 22 can be arranged closely together. In shared mode, when the main light-emitting element 21 and the auxiliary light-emitting element 22 emit light simultaneously, the uniformity of display brightness at different viewing angles can be improved, avoiding excessive differences in display brightness at different viewing angles. Furthermore, this structure, with the main light-emitting element 21 and the auxiliary light-emitting element 22 within the same light-emitting element 2 arranged closely and far from adjacent light-emitting elements 2, can reduce crosstalk between different light-emitting elements 2 and avoid color shift.

[0147] It should be noted that the shape of the notch 12 in the auxiliary light-emitting element 22 is related to the shape of the main light-emitting element 21. For example, see [link to example]. Figure 34 The main light-emitting element 21 and the notch 12 can both be square in shape, or see [reference needed]. Figure 35 The main light-emitting element 21 and the notch 12 can both be circular in shape.

[0148] In one feasible implementation, such as Figure 37 As shown, Figure 37 This is a schematic diagram of a first light-emitting element 13 and a second light-emitting element 17 provided in an embodiment of the present invention. The light-emitting element 2 includes a first light-emitting element 13, which includes two main light-emitting elements 21. In the first light-emitting element 13, an auxiliary light-emitting element 22 has a Z-shaped structure. The auxiliary light-emitting element 22 includes a first auxiliary light-emitting part 14, a second auxiliary light-emitting part 15 and a third auxiliary light-emitting part 16 connected in sequence. The two main light-emitting elements 21 are located on both sides of the second auxiliary light-emitting part 15.

[0149] And / or, the light-emitting element 2 includes a second light-emitting element 17, the second light-emitting element 17 includes four main light-emitting elements 21; in the second light-emitting element 17, the auxiliary light-emitting element 22 has a cross-shaped structure, the auxiliary light-emitting element 22 includes a central part 18 and four branches 19 connected to the respective central parts 18, and a main light-emitting element 21 is provided between each two adjacent branches 19.

[0150] In the above configuration, both the first light-emitting element 13 and the second light-emitting element 17 include multiple main light-emitting elements 21 that are distributed in the area where their respective light-emitting elements 2 are located. This not only improves the brightness uniformity of different areas in the privacy mode, avoiding the situation where some areas are too bright and others are too dark, but also allows the light emitted by the auxiliary light-emitting element 22 to be emitted through the first opening 4 corresponding to multiple main light-emitting elements 21 simultaneously in the sharing mode, effectively improving the display uniformity under different viewing angles.

[0151] It should be noted that in the first light-emitting element 13, the two main light-emitting elements 21 can be understood as dividing the original larger main light-emitting element 21 into two smaller, dispersed sub-light-emitting elements. Similarly, in the second light-emitting element 17, the four main light-emitting elements 21 can be understood as dividing the original larger main light-emitting element 21 into four smaller, dispersed sub-light-emitting elements. In this embodiment of the invention, the area of ​​a single main light-emitting element 21 in the first light-emitting element 13 and the second light-emitting element 17 can be the same or different.

[0152] Furthermore, see again Figure 37 The first light-emitting element 13 includes a red light-emitting element 131 and a green light-emitting element 132, and the second light-emitting element 17 includes a blue light-emitting element 171. That is, the auxiliary light-emitting elements 22 in the red light-emitting element 131 and the green light-emitting element 132 have a Z-shaped structure, and the two main light-emitting elements 21 are located on both sides of the second auxiliary light-emitting part 15 in the auxiliary light-emitting element 22; the auxiliary light-emitting elements 22 in the blue light-emitting element 171 have a cross-shaped structure, and the four main light-emitting elements 21 are respectively located between two adjacent branches 19 in the auxiliary light-emitting element 22.

[0153] It is understandable that, due to the characteristics of the luminescent materials, the lifespan decay of the red luminescent element 131, green luminescent element 132, and blue luminescent element 171 differs. To improve lifespan uniformity, the area of ​​the blue luminescent element 171 can be set to be larger than that of the red luminescent element 131 and the green luminescent element 132. Consequently, the total area of ​​the main luminescent elements 21 in the blue luminescent element 171 is larger. In this case, more main luminescent elements 21 can be set in the blue luminescent element 171 (which can also be understood as splitting the original main luminescent elements 21 into more sub-luminescent elements), thereby avoiding the large area of ​​a single main luminescent element 21. In this way, while ensuring that the blue luminescent element 171 has a smaller light emission angle in privacy mode, it is not necessary to increase the distance between the light-shielding layer 3 and the blue luminescent element 171, and therefore it is not necessary to increase the film thickness between the light-shielding layer 3 and the blue luminescent element 171, thus reducing the loss of light emitted by the blue luminescent element 171.

[0154] In one feasible implementation, such as Figure 38 and Figure 39 As shown, Figure 38 This is a schematic diagram of a structure of the auxiliary light-shielding layer 20 provided in an embodiment of the present invention. Figure 39 This is another structural schematic diagram of the auxiliary light-shielding layer 20 provided in an embodiment of the present invention. The display panel further includes an auxiliary light-shielding layer 20, which is located between the light-shielding layer 3 and the light-emitting element 2. In a direction perpendicular to the plane of the substrate 1, the light-shielding layer 3 covers the auxiliary light-shielding layer 20.

[0155] In this configuration, the auxiliary light-shielding layer 20 can be located between two adjacent first openings 4 and overlap with the auxiliary light-emitting element 22 in a direction perpendicular to the plane of the substrate 1. Furthermore, when the display panel also has a support structure between the light-emitting element 2 and the light-shielding layer 3, the support structure can be formed using a light-shielding material, thereby reusing the support structure as the auxiliary light-shielding layer 20.

[0156] In the above structure, by providing an auxiliary light-shielding layer 20 between the light-shielding layer 3 and the light-emitting element 2, the auxiliary light-shielding layer 20 can block part of the oblique light emitted from the main light-emitting element 21, thereby ensuring that all the light emitted from the main light-emitting element 21 is emitted through its corresponding opening. See Figure 38 When the light-emitting element 2 includes a main light-emitting element 21, the light emitted by the main light-emitting element 21 can be prevented from escaping through the first opening 4 corresponding to the adjacent light-emitting element 2, thus preventing crosstalk and color shift. See also Figure 39 When the light-emitting element 2 includes at least two main light-emitting elements 21, in a single light-emitting element 2, the light emitted by each main light-emitting element 21 can be emitted through its corresponding first opening 4, avoiding emission through the first opening 4 corresponding to other main light-emitting elements 21, thereby improving brightness uniformity.

[0157] In one feasible implementation, such as Figure 40 As shown, Figure 40 This is a schematic diagram of a structure of bump 31 and reflective layer 32 provided in an embodiment of the present invention. The display panel further includes bump 31, which is located between light-emitting element 2 and light-shielding layer 3. In a direction perpendicular to the plane of substrate 1, light-shielding layer 3 covers bump 31. Bump 31 includes a bottom surface near the substrate 1 and a sidewall intersecting the bottom surface. The display panel further includes reflective layer 32, which is located on the sidewall of bump 31.

[0158] In this configuration, the bump 31 can be located between the auxiliary light-emitting elements 22 of two adjacent light-emitting elements 2 in a direction perpendicular to the plane of the substrate 1. Furthermore, see again... Figure 40When the auxiliary film layer includes a first inorganic encapsulation layer 51, an organic encapsulation layer 52 located on the side of the first inorganic encapsulation layer 51 facing away from the substrate 1, and a second inorganic encapsulation layer 53 located on the side of the organic encapsulation layer 52 facing away from the substrate 1, the bump 31 can also be formed using the first inorganic encapsulation layer 51.

[0159] When two adjacent light-emitting elements 2 are used to emit light of different colors, some of the oblique light emitted by the main light-emitting element 21 or the auxiliary light-emitting element 22 of one of the light-emitting elements 2 may be emitted through the first opening 4 corresponding to the adjacent light-emitting element 2, thereby causing crosstalk between different colors of light. To address this, in this embodiment of the invention, by providing a bump 31 and a reflective layer 32, the reflective layer 32 can reflect some of the oblique light emitted by the light-emitting element 2, so that it still exits through the first opening 4 corresponding to the light-emitting element 2, thereby improving crosstalk and avoiding color shift.

[0160] In one feasible implementation, such as Figure 41 As shown, Figure 41 This is a schematic diagram of the arrangement of the light-emitting elements 2 provided in an embodiment of the present invention. When the auxiliary light-emitting elements 22 are located on both sides of the main light-emitting element 21 in the first direction x, the size L1 of the light-emitting element 2 in the first direction x will be larger than the size L2 of the light-emitting element 2 in the second direction y. The first direction x and the second direction y are parallel to the plane where the substrate 1 is located, and the first direction x and the second direction y intersect. At this time, the spacing d1 between two adjacent light-emitting elements 2 in the first direction x can be set to be smaller than the spacing d2 between two adjacent light-emitting elements 2 in the second direction y. In this way, when only the main light-emitting element 21 emits light in the privacy mode, the difference between the spacing between two adjacent main light-emitting elements 21 in the first direction x and the spacing between two adjacent main light-emitting elements 21 in the second direction y is small, which helps to improve the uniformity of display brightness.

[0161] In one feasible implementation, see again Figure 1 In the direction perpendicular to the plane of the display panel, the orthographic projection of the main light-emitting element 21 is located within the first opening 4. At this time, even if the position of the first opening 4 and / or the position of the main light-emitting element 21 deviates due to reasons such as manufacturing precision, the first opening 4 can still expose the main light-emitting element 21, preventing the light-shielding layer 3 from blocking the main light-emitting element 21 and improving the display brightness in privacy mode.

[0162] In one feasible implementation, such as Figure 42 As shown, Figure 42This is a partial cross-sectional view of a display panel provided in an embodiment of the present invention. The light-emitting element 2 includes a first electrode 33, a light-emitting layer 34, and a second electrode 35, with the light-emitting layer 34 located between the first electrode 33 and the second electrode 35. The first electrode 33 includes a first sub-electrode 331 and a second sub-electrode 332 disposed at intervals. The first sub-electrode 331 belongs to the main light-emitting element 21, and the second sub-electrode 332 belongs to the auxiliary light-emitting element 22.

[0163] By employing the above configuration, the first electrode 33 is divided into spaced first sub-electrodes 331 and second sub-electrodes 332. In the shared mode, driving voltages are applied to the first sub-electrodes 331 and the second sub-electrodes 332 respectively. At this time, the portion of the light-emitting layer 34 between the first sub-electrode 331 and the second electrode 35 radiates light, and the portion of the light-emitting layer 34 between the second sub-electrodes 332 and the second electrode 35 also radiates light, thereby achieving simultaneous light emission from the main light-emitting element 21 and the auxiliary light-emitting element 22. In the privacy mode, only the driving voltage is applied to the first sub-electrode 331. At this time, only the portion of the light-emitting layer 34 between the first sub-electrode 331 and the second electrode 35 radiates light, thereby achieving only light emission from the main light-emitting element 21, while the auxiliary light-emitting element 22 does not emit light.

[0164] In one feasible implementation, such as Figure 43 As shown, Figure 43 This is another partial cross-sectional view of the display panel provided in an embodiment of the present invention, wherein the first electrode 33 is the cathode 38 and the second electrode 35 is the anode 37.

[0165] In this configuration, the cathode 38 is divided to achieve independent light emission from the main light-emitting element 21 and the auxiliary light-emitting element 22. In shared mode, a driving voltage is provided to the anode 37, and a negative power supply voltage is simultaneously provided to the first sub-electrode 331 and the second sub-electrode 332 in the cathode 38. At this time, the light-emitting layer 34 between the first sub-electrode 331 and the anode 37, and the light-emitting layer 34 between the second sub-electrode 332 and the anode 37, both radiate light. In privacy mode, a driving voltage is provided to the anode 37, and a negative power supply voltage is only provided to the first sub-electrode 331 in the cathode 38. At this time, only the portion of the light-emitting layer 34 between the first sub-electrode 331 and the anode 37 radiates light.

[0166] Alternatively, in another feasible implementation, see again Figure 42 The first electrode 33 is the anode 37, and the second electrode 35 is the cathode 38.

[0167] This configuration achieves independent light emission of the main light-emitting element 21 and the auxiliary light-emitting element 22 by dividing the anode 37 in a single light-emitting element 2. In shared mode, a negative power supply voltage is provided to the cathode 38, and the pixel driving circuit 7 simultaneously provides driving voltage to the first sub-electrode 331 and the second sub-electrode 332 in the anode 37. At this time, the light-emitting layer 34 between the first sub-electrode 331 and the anode 37, and the light-emitting layer 34 between the second sub-electrode 332 and the anode 37, both radiate light, thus achieving simultaneous light emission of the main light-emitting element 21 and the auxiliary light-emitting element 22. In privacy mode, a negative power supply voltage is provided to the cathode 38, and a driving voltage is only provided to the first sub-electrode 331 in the anode 37. At this time, only the portion of the light-emitting layer 34 between the first sub-electrode 331 and the anode 37 radiates light, thereby achieving individual light emission of the main light-emitting element 21.

[0168] Under normal circumstances, the cathode 38 in a display panel is a full-coverage film layer. When driving different light-emitting elements 2 in the display panel to emit light, the cathodes 38 of different light-emitting elements 2 receive the same negative power supply voltage. The pixel driving circuit 7 provides the same or different driving currents to the anode 37 of the light-emitting element 2 that is electrically connected to it, thereby driving the light-emitting layer 34 to emit light under the voltage applied by the cathode 38 and the anode 37. If the independent emission of the main light-emitting element 21 and the auxiliary light-emitting element 22 is achieved by dividing the cathode 38, the first sub-electrode 331 and the second sub-electrode 332 in the cathode 38 are spaced apart from each other. Therefore, separate negative power supply signal lines are needed to be electrically connected to the first sub-electrode 331 and the second sub-electrode 332 in the cathode 38 respectively. However, by dividing the anode 37 to achieve the independent emission of the main light-emitting element 21 and the auxiliary light-emitting element 22, the cathode 38 can still be a full-coverage film layer. In this case, there is no need to add other negative power supply signal lines, making the process more feasible.

[0169] In one feasible implementation, such as Figure 44 As shown, Figure 44 This is a partial top view of a display panel provided in an embodiment of the present invention. The second sub-electrode 332 includes two first side electrodes 3321, which are respectively located on both sides of the first sub-electrode 331 in a first direction x, which is parallel to the plane of the substrate 1. It should be noted that, in conjunction with... Figure 13 The two first side electrodes 3321 correspond to the two first auxiliary light-emitting elements 22 respectively.

[0170] As mentioned above, in this embodiment of the invention, the first direction x can specifically refer to a direction corresponding to 0° or 180°. In sharing mode, whether for display devices such as mobile phones or computers, when other viewers simultaneously watch the displayed image, they mostly watch from the left and right sides of the display panel. This embodiment of the invention addresses this by respectively setting two first side electrodes 3321 on both sides of the first sub-electrode 331 in the first direction x, combined with... Figure 13 That is, the first auxiliary light-emitting elements 221 are respectively set on both sides of the main light-emitting element 21. In the shared mode, by providing driving voltage to the two first side electrodes 3321, that is, driving the two first auxiliary light-emitting elements 221 to emit light, the brightness of the display panel at a wide viewing angle on the left and right sides can be improved, thereby improving the viewing experience of the viewer in the shared mode.

[0171] Furthermore, such as Figure 45 As shown, Figure 45 This is another partial top view of the display panel provided in an embodiment of the present invention. The second sub-electrode 332 further includes a second side electrode 3322. The second side electrode 3322 is located on one side of the first sub-electrode 331 in the second direction y. The second direction y is parallel to the plane where the substrate 1 is located, and the second direction y intersects the first direction x. It should be noted that, in conjunction with... Figure 14 The second side electrode 3322 corresponds to the second sub-auxiliary light-emitting element 222.

[0172] In shared mode, viewers not only watch from the left and right sides of the display panel, but also frequently from the top of the display panel. For example, when the display panel is placed on a desk, a viewer standing to watch the screen can be considered to be watching from the top of the display panel. In this embodiment of the invention, the second direction y can refer to the direction corresponding to 270°, that is, the direction of the plane where the substrate 1 is located. The second side electrode 3322 is placed below the first side electrode 3321. At this time, in shared mode, a driving voltage is provided to the second side electrode 3322, that is, to drive the second sub-auxiliary light-emitting element 222 to emit light. When the light emitted by the second sub-auxiliary light-emitting element 222 passes through the first opening 4, it tends to be emitted towards a 90° viewing angle, thus improving the light output brightness at the top viewing angle of the display panel, which is more conducive to improving the viewing experience of viewers in shared mode.

[0173] In one feasible implementation, such as Figure 46 and Figure 47 As shown, Figure 46 This is another partial top view of the display panel provided in an embodiment of the present invention. Figure 47 This is another partial top view of the display panel provided in an embodiment of the present invention, wherein the second sub-electrode 332 surrounds the first sub-electrode 331.

[0174] Among them, see Figure 46 The second sub-electrode 332 can partially surround the first sub-electrode 331, in combination. Figure 18 The auxiliary light-emitting element 22 partially surrounds the main light-emitting element 21. In this structure, the second sub-electrode 332 can be located at least on one side of the first sub-electrode 331 in the first direction x and the second direction y. Based on the above analysis, this can effectively improve the light output brightness of the display panel in the upper, left, and right viewing angles.

[0175] Or see Figure 47 The second sub-electrode 332 can also surround the first sub-electrode 331, in combination. Figure 19 The auxiliary light-emitting element 22 surrounds the main light-emitting element 21. In this structure, the second sub-electrode 332 surrounds the first sub-electrode 331 in all directions. In the shared mode, when the second sub-electrode 332 receives the driving voltage to drive the auxiliary light-emitting element 22 to emit light, it can cover the entire viewing angle range and also helps to improve the brightness uniformity of the display panel under different viewing angles.

[0176] In one feasible implementation, such as Figure 48 As shown, Figure 48 This is another partial top view of the display panel provided in an embodiment of the present invention. The second sub-electrode 332 includes a strip-shaped electrode portion 3323. In the direction perpendicular to the plane where the substrate 1 is located, the orthographic projection of the strip-shaped electrode portion 3323 includes a first electrode edge 3324 near the first sub-electrode 331. The first electrode edge 3324 is an arc-shaped edge and protrudes towards the first sub-electrode 331.

[0177] In another representation, in the direction perpendicular to the plane of substrate 1, the orthogonal projection of the strip electrode portion 3323 includes a first electrode edge 3324 near the first sub-electrode 331. The first electrode edge 3324 includes a first point A1 and a second point A2. The distance between the first point A1 and the first sub-electrode 331 is less than the distance between the second point A2 and the first sub-electrode 331. Specifically, the minimum distance from the first point A1 to the end of the strip electrode portion 3323 is greater than the minimum distance from the second point A2 to the end of the strip electrode portion 3323. It should be noted that, in conjunction with... Figure 15 The strip-shaped electrode portion 3323 corresponds to the strip-shaped light-emitting portion 223.

[0178] In this embodiment of the invention, the first electrode edge 3324 of the strip electrode portion 3323 is configured as an arc-shaped edge protruding towards the first sub-electrode 331. On one hand, the distances between the protruding and non-protruding points of the first electrode edge 3324 and the edge of the first opening 4 away from the strip electrode portion 3323 are different. Thus, when light emitted from different points on the first electrode edge 3324 exits through this edge of the first opening 4, its transmission angle is also different, effectively weakening the brightness abrupt change phenomenon at different viewing angles. On the other hand, this protruding part of the strip electrode portion 3323 is closer to the first sub-electrode 331, that is, closer to the first opening 4. Therefore, when the display panel is in shared mode, combined with... Figure 15 The light emitted from the protruding portion of the strip-shaped light-emitting part 223, after passing through the first opening 4, can increase the display brightness of the display panel at a wide viewing angle and improve the display effect of the display panel in shared mode. On the other hand, given the current manufacturing capabilities, the process of a film layer with a concave edge is quite difficult. Therefore, setting the first electrode edge 3324 of the strip-shaped electrode part 3323 as an arc-shaped edge protruding towards the first sub-electrode 331 can also reduce the manufacturing difficulty of the strip-shaped electrode part 3323.

[0179] In one feasible implementation, see again Figure 44 One edge of the second sub-electrode 332 is adjacent to one edge of the first sub-electrode 331, and the adjacent edges of the two are straight edges. That is, the edge of the second sub-electrode 332 facing the first sub-electrode 331 is a straight edge, and the edge of the first sub-electrode 331 facing the second sub-electrode 332 is also a straight edge. The opposite edges of the first sub-electrode 331 and the second sub-electrode 332 are parallel and adjacent.

[0180] Due to current technological limitations, fabricating films with concave edges presents significant processing challenges. Therefore, this embodiment of the invention uses straight lines as the opposing edges of the auxiliary light-emitting element 22 and the main light-emitting element 21, making it easier to achieve parallelism and uniformity in the distance between them. This, in turn, improves the brightness uniformity across different viewing angles in the shared mode.

[0181] In one feasible implementation, such as Figure 49 As shown, Figure 49 This is another partial cross-sectional view of the display panel provided in an embodiment of the present invention. Along the direction from the first sub-electrode 331 to the second sub-electrode 332, the second sub-electrode 332 is inclined in the direction toward the light-emitting surface of the display panel. In other words, along the direction from the first sub-electrode 331 to the second sub-electrode 332, the distance between the second sub-electrode 332 and the substrate 1 increases progressively. It should be noted that, in conjunction with... Figure 17The second sub-electrode 332 is tilted to correspond to the tilted setting of the auxiliary light-emitting element 22.

[0182] When two adjacent light-emitting elements 2 are used to emit light of different colors, the light emitted obliquely from the second sub-electrode 332 may exit through the first opening 4 corresponding to the adjacent light-emitting element 2, thereby causing crosstalk between different colors of light. Therefore, in this embodiment of the invention, by tilting the second sub-electrode 332, the light-emitting layer 34 on the second sub-electrode 332 can also be tilted, thereby increasing the likelihood that the oblique light emitted from this portion of the light-emitting layer 34 will exit through the first opening 4 corresponding to the light-emitting element 2, reducing light crosstalk, and thus improving color shift.

[0183] In one feasible implementation, see again Figure 42 The display panel also includes a pixel definition layer 41, which includes a second opening 42. The main light-emitting element 21 and the auxiliary light-emitting element 22 share a second opening 42. That is, the first sub-electrode 331 and the second sub-electrode 332 in the same light-emitting element 2 are both exposed in the same second opening 42. At this time, the area of ​​the second opening 42 is large, which can reduce the process difficulty of forming the second opening 42 in the pixel definition layer 41.

[0184] In one feasible implementation, such as Figure 50 As shown, Figure 50 This is a schematic diagram of a filter layer 43 provided in an embodiment of the present invention. The display panel further includes a filter layer 43, which is located on the side of the light-emitting element 2 facing away from the substrate 1. The filter layer 43 includes a black matrix 431 and a color resist 432. In a direction perpendicular to the plane of the substrate 1, the color resist 432 covers the main light-emitting element 21, and the light-shielding layer 3 is reused with the black matrix 431. It should be noted that the color of the color resist 432 is the same as the light emitted by the main light-emitting element 21 that overlaps with it.

[0185] By providing a filter layer 43 on the side of the light-emitting element 2 facing away from the substrate 1, the color resist 432 in the filter layer 43 can filter ambient light of a different color, thereby reducing the amount of ambient light entering through the first opening 4 and reducing reflection. On the other hand, when two adjacent light-emitting elements 2 are used to emit light of different colors, the light emitted by one light-emitting element 2 will be filtered out by the color resist 432 of the adjacent first opening 4 when it is emitted from the first opening 4 of the adjacent light-emitting element 2, thus improving color shift. In addition, by reusing the black matrix 431 in the filter layer 43 as a light-shielding layer 3, the process can be simplified and the film thickness of the display panel can be reduced.

[0186] Based on the same inventive concept, embodiments of the present invention also provide a driving method for a display panel, used to drive the aforementioned display panel.

[0187] The display panel offers two display modes: privacy mode and sharing mode. (Combined) Figures 1-4 ,like Figure 51 As shown, Figure 51 This is a flowchart of a driving method provided in an embodiment of the present invention. The driving method includes:

[0188] Step S1: In the shared mode, both the main light-emitting element 21 and the auxiliary light-emitting element 22 emit light.

[0189] Step S2: In privacy mode, the main light-emitting element 21 emits light, while the auxiliary light-emitting element 22 does not emit light.

[0190] See Figure 5 In the shared mode, both the main light-emitting element 21 and the auxiliary light-emitting element 22 emit light. The light emitted by the main light-emitting element 21 is emitted through the first opening 4 above it. When this part of the light is emitted out of the display panel, it will be transmitted in a small angle direction close to the normal viewing angle. At the same time, the light emitted by the auxiliary light-emitting element 22 is emitted through the first opening 4 diagonally above it. When this part of the light is emitted out of the display panel, it will tend to be transmitted diagonally along the large viewing angle direction, so that the viewer can normally see the display image from different viewing angles.

[0191] See Figure 6 In privacy mode, only the main light-emitting element 21 emits light, while the auxiliary light-emitting element 22 does not emit light. At this time, only the light emitted by the main light-emitting element 21 shines through the first opening 4 and exits the display panel. Since this part of the light tends to be transmitted along the normal viewing angle, the display panel will only have a narrower viewing range. At this time, the display panel is in privacy mode, and the user can only see the display image at the normal viewing angle. The user cannot see the display image at the oblique viewing angle, thus protecting the user's privacy.

[0192] In summary, the embodiments of the present invention can control the light emission state of the auxiliary light-emitting element 22 to adjust the light emission viewing angle range of the display panel, enabling the display panel to switch between different display modes, making the display mode control of the display panel more flexible and improving the user experience.

[0193] In one feasible implementation, combined with Figure 7 and Figure 8 The display panel also includes a mode control module 6, which controls the light emission state of the auxiliary light-emitting element 22 according to the display mode of the display panel. The display panel also includes a pixel driving circuit 7, which is electrically connected to the main light-emitting element 21 and is also electrically connected to the auxiliary light-emitting element 22 through the mode control module 6.

[0194] In the shared mode, the process of the main light-emitting element 21 and the auxiliary light-emitting element 22 emitting light includes: the pixel driving circuit 7 transmits driving current to the main light-emitting element 21 to drive the main light-emitting element 21 to emit light, and the mode control module 6 controls the path between the pixel driving circuit 7 and the auxiliary light-emitting element 22 to be turned on, and transmits the driving current provided by the pixel driving circuit 7 to the auxiliary light-emitting element 22 to drive the auxiliary light-emitting element 22 to emit light.

[0195] In privacy mode, the process in which the main light-emitting element 21 emits light and the auxiliary light-emitting element 22 does not emit light includes: the pixel driving circuit 7 transmits driving current to the main light-emitting element 21 to drive the main light-emitting element 21 to emit light, and the mode control module 6 controls the path between the pixel driving circuit 7 and the auxiliary light-emitting element 22 to be disconnected.

[0196] Based on the above driving method, in the shared mode, the auxiliary light-emitting element 22 and the main light-emitting element 21 share the driving current provided by the same pixel driving circuit 7 to emit light. On the one hand, the light-emitting brightness of the auxiliary light-emitting element 22 and the main light-emitting element 21 is the same, which optimizes the light-emitting effect of a single light-emitting element 2. On the other hand, there is no need to set up an additional circuit structure for providing driving current to the auxiliary light-emitting element 22, which simplifies the circuit design of the display panel and the space occupied by the circuit in the display panel, and also helps to improve the pixel density.

[0197] Furthermore, combined Figures 9-11 The pixel driving circuit 7 is electrically connected to the first light emission control signal line Emit1. The first light emission control signal line Emit1 is used to transmit the first enable level and the first disable level for controlling the light emission state of the main light emission element 21. The mode control module 6 is electrically connected to the second light emission control signal line Emit2. The second light emission control signal line Emit2 is used to transmit the second enable level and the second disable level for controlling the light emission state of the auxiliary light emission element 22. The first enable level and the second enable level are both low levels.

[0198] The display panel also includes a control module 8, which includes a NOR gate 81 and an inverter 82. The first input terminal of the NOR gate 81 is electrically connected to the first light emission control signal line Emit1, and the second input terminal of the NOR gate 81 is electrically connected to the control signal line Ctl. The input terminal of the inverter 82 is electrically connected to the output terminal of the NOR gate 81, and the output terminal of the inverter 82 is electrically connected to the second light emission control signal line Emit2.

[0199] In shared mode, the process of the second light-emitting control signal line Emit2 outputting a second enable level includes: the control signal line Ctl outputs a low level, NOR gate 81 outputs a high level based on the low level output by the control signal line Ctl and the low level output by the first light-emitting control signal line Emit1, and inverter 82 outputs a low level based on the high level output by NOR gate 81. In privacy mode, the process of the second light-emitting control signal line Emit2 outputting a second disable level includes: the control signal line Ctl outputs a high level, NOR gate 81 outputs a low level, and inverter 82 outputs a high level based on the low level output by NOR gate 81.

[0200] Combination Figure 11 In shared mode, when the control signal line Ctl outputs a low level, and the first light-emitting control signal line Emit1 outputs a high level, the NOR gate 81 outputs a low level, and the inverter 82 outputs a high level to the second light-emitting control signal line Emit2 based on the low level output by the NOR gate 81, thus controlling the auxiliary light-emitting element 22 to not emit light; when the first light-emitting control signal line Emit1 outputs a low level, the NOR gate 81 outputs a high level, and the inverter 82 outputs a low level to the second light-emitting control signal line Emit2 based on the high level output by the NOR gate 81, thus controlling the auxiliary light-emitting element 22 to emit light.

[0201] In privacy mode, the control signal line Ctl outputs a high level. At this time, regardless of whether the first light-emitting control signal line Emit1 outputs a high level or a low level, the NOR gate 81 outputs a low level. The inverter 82 outputs a high level according to the low level output by the NOR gate 81, so as to control the auxiliary light-emitting element 22 to not emit light.

[0202] Based on the same inventive concept, embodiments of the present invention also provide a display device, such as... Figure 52 As shown, Figure 52 This is a schematic diagram of a display device provided in an embodiment of the present invention. The display device includes the aforementioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments and will not be repeated here. Figure 52 The display device shown is for illustrative purposes only. The display device can be any electronic device with display function, such as a mobile phone, tablet computer, laptop computer, e-reader or television.

[0203] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0204] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a light-emitting element located on one side of the substrate, the light-emitting element comprising a main light-emitting element and an auxiliary light-emitting element; a light-blocking layer located on the side of the light-emitting element away from the substrate, the light-blocking layer comprising a first opening corresponding to the main light-emitting element, the auxiliary light-emitting element being located at the periphery of the main light-emitting element, and the light-blocking layer covering at least part of the auxiliary light-emitting element in a direction perpendicular to the plane in which the substrate lies; wherein the display mode of the display panel comprises a privacy mode and a sharing mode; in the sharing mode, the main light-emitting element emits light, and the auxiliary light-emitting element also emits light; in the privacy mode, the main light-emitting element emits light, and the auxiliary light-emitting element does not emit light.

2. The display panel of claim 1, wherein: the display panel further comprises a mode control module, the mode control module being configured to control the light-emitting state of the auxiliary light-emitting element according to the display mode in which the display panel is located; the display panel further comprises a pixel driving circuit, the pixel driving circuit being electrically connected to the main light-emitting element, and the pixel driving circuit being further electrically connected to the auxiliary light-emitting element through the mode control module.

3. The display panel of claim 1, wherein: the display panel further comprises a mode control module, the mode control module being configured to control the light-emitting state of the auxiliary light-emitting element according to the display mode in which the display panel is located; the display panel further comprises a pixel driving circuit, the pixel driving circuit comprising a driving transistor, a first light-emitting control module and a second light-emitting control module, wherein the first light-emitting control module is electrically connected between the driving transistor and the main light-emitting element, and the second light-emitting control module is electrically connected between the driving transistor and the auxiliary light-emitting element; the mode control module is multiplexed with the second light-emitting control module.

4. The display panel of claim 2 or 3, wherein: the pixel driving circuit is electrically connected to a first light-emitting control signal line, and the mode control module is electrically connected to a second light-emitting control signal line; the display panel further comprises a regulation module, the regulation module being electrically connected to the first light-emitting control signal line and the second light-emitting control signal line respectively, and being configured to: in the sharing mode, generate and output a second enable level to the second light-emitting control signal line according to a first enable level output by the first light-emitting control signal line, and in the privacy mode, generate and output a second non-enable level to the second light-emitting control signal line according to the first enable level or a first non-enable level output by the first light-emitting control signal line.

5. The display panel of claim 4, wherein: the first enable level and the second enable level are low levels respectively; the regulation module comprises: a NOR gate, a first input end of the NOR gate being electrically connected to the first light-emitting control signal line, and a second input end of the NOR gate being electrically connected to a regulation signal line, the regulation signal line being configured to provide a low level in the sharing mode and a high level in the privacy mode. An inverter, an input terminal of the inverter being electrically connected with an output terminal of the NOR gate, and an output terminal of the inverter being electrically connected with the second light-emitting control signal line.

6. The display panel of claim 2 or 3, wherein, The display panel further comprises a first reset control module, the first reset control module being electrically connected between a reset signal line and the auxiliary light-emitting element.

7. The display panel of claim 1, wherein, The auxiliary light-emitting element comprises two first sub-auxiliary light-emitting elements, the two first sub-auxiliary light-emitting elements being respectively located on two sides of the main light-emitting element in a first direction, the first direction being parallel to a plane in which the substrate lies.

8. The display panel of claim 7, wherein, The auxiliary light-emitting element further comprises a second sub-auxiliary light-emitting element, the second sub-auxiliary light-emitting element being located on one side of the main light-emitting element in a second direction, the second direction being parallel to the plane in which the substrate lies, and the second direction intersecting the first direction.

9. The display panel of claim 1, wherein, The auxiliary light-emitting element comprises a strip-shaped light-emitting part; Along a direction parallel to a third direction and from two ends of the strip-shaped light-emitting part to a center of the strip-shaped light-emitting part, a distance between the strip-shaped light-emitting part and the main light-emitting element gradually decreases, the third direction being perpendicular to an arrangement direction of the strip-shaped light-emitting part and the main light-emitting element.

10. The display panel of claim 1, wherein, A side edge of the auxiliary light-emitting element is adjacent to a side edge of the main light-emitting element, and the side edges adjacent to each other are straight edges, respectively.

11. The display panel of claim 1, wherein, In a direction in which the main light-emitting element points to the auxiliary light-emitting element, the auxiliary light-emitting element is inclined in a direction toward a light-outgoing surface of the display panel.

12. The display panel of claim 1, wherein, The auxiliary light-emitting element surrounds the main light-emitting element.

13. The display panel of claim 1, wherein, In a direction perpendicular to the plane in which the substrate lies, a shape of a projection of the main light-emitting element is circular, elliptical or a polygon similar to a circle.

14. The display panel of claim 1, wherein, The main light-emitting element comprises a first concave-convex structure near an edge of the auxiliary light-emitting element, and the auxiliary light-emitting element comprises a second concave-convex structure near an edge of the main light-emitting element; A concave part of the first concave-convex structure surrounds a convex part of the second concave-convex structure, and a concave part of the second concave-convex structure surrounds a convex part of the first concave-convex structure.

15. The display panel of claim 1, wherein, In a direction perpendicular to the plane in which the substrate lies, a projection of the main light-emitting element comprises a first edge extending along a first direction and a second edge extending along a second direction, the first direction and the second direction being respectively parallel to the plane in which the substrate lies, and the first direction intersecting the second direction; In the second direction, the distance between the first edge and the edge of the first opening adjacent to the first edge is A, and in the first direction, the distance between the second edge and the edge of the first opening adjacent to the second edge is B, B < A. 16.The display panel of claim 1, wherein, The light emitting element comprises at least two main light emitting elements, and any two main light emitting elements are separated by the auxiliary light emitting element. 17.The display panel of claim 16, wherein, The display panel further comprises pixel driving circuits, and at least two main light emitting elements are respectively and one-to-one electrically connected to at least two pixel driving circuits. 18.The display panel of claim 16, wherein, The display panel further comprises pixel driving circuits, and at least two main light emitting elements are electrically connected to the same pixel driving circuit. 19.The display panel of claim 16, wherein, The auxiliary light emitting element comprises at least two notches, at least two notches correspond to at least two main light emitting elements one-to-one, and at least part of the main light emitting element is located in the corresponding notch. 20.The display panel of claim 16, wherein, The light emitting element comprises a first light emitting element, and the first light emitting element comprises two main light emitting elements; in the first light emitting element, the auxiliary light emitting element is in a Z-shaped structure, the auxiliary light emitting element comprises a first auxiliary light emitting part, a second auxiliary light emitting part and a third auxiliary light emitting part connected in sequence, and two main light emitting elements are located on both sides of the second auxiliary light emitting part; And / or, the light emitting element comprises a second light emitting element, and the second light emitting element comprises four main light emitting elements; In the second light emitting element, the auxiliary light emitting element is in a cross-shaped structure, the auxiliary light emitting element comprises a center part and four branch parts connected to the center part respectively, and one main light emitting element is arranged between each adjacent two branch parts. 21.The display panel of claim 20, wherein, The first light emitting element comprises a red light emitting element and a green light emitting element, and the second light emitting element comprises a blue light emitting element. 22.The display panel of claim 1, wherein, The display panel further comprises an auxiliary light shielding layer, and the auxiliary light shielding layer is located between the light shielding layer and the light emitting element, and the light shielding layer covers the auxiliary light shielding layer in a direction perpendicular to the plane where the substrate is located. 23.The display panel of claim 1, wherein, The display panel further comprises a bump, and the bump is located between the light emitting element and the light shielding layer, the light shielding layer covers the bump in a direction perpendicular to the plane where the substrate is located, the bump comprises a bottom surface close to the substrate and a side wall intersecting with the bottom surface; the display panel further comprises a reflective layer, and the reflective layer is located on the side wall of the bump. 24.The display panel of claim 1, wherein, ​ A size of the light emitting element in a first direction is greater than a size of the light emitting element in a second direction, the first direction and the second direction are parallel to a plane where the substrate is located, and the first direction intersects the second direction; A spacing between two light emitting elements adjacent in the first direction is less than a spacing between two light emitting elements adjacent in the second direction.

25. The display panel of claim 1, wherein A projection of the main light emitting element in a direction perpendicular to a plane where the display panel is located is located in the first opening.

26. The display panel of claim 1, wherein The light emitting element comprises a first electrode, a light emitting layer, and a second electrode, the light emitting layer is located between the first electrode and the second electrode; The first electrode comprises a first sub-electrode and a second sub-electrode arranged at intervals, the first sub-electrode belongs to the main light emitting element, and the second sub-electrode belongs to the auxiliary light emitting element.

27. The display panel of claim 26, wherein The first electrode is an anode, and the second electrode is a cathode.

28. The display panel of claim 26, wherein The second sub-electrode comprises two first side edge electrodes, the two first side edge electrodes are respectively located on two sides of the first sub-electrode in a first direction, and the first direction is parallel to a plane where the substrate is located.

29. The display panel of claim 28, wherein The second sub-electrode further comprises a second side edge electrode, the second side edge electrode is located on one side of the first sub-electrode in a second direction, the second direction is parallel to a plane where the substrate is located, and the second direction intersects the first direction.

30. The display panel of claim 26, wherein The second sub-electrode surrounds the first sub-electrode.

31. The display panel of claim 26, wherein The second sub-electrode comprises a strip-shaped electrode part; A projection of the strip-shaped electrode part in a direction perpendicular to a plane where the substrate is located comprises a first electrode edge close to the first sub-electrode, the first electrode edge is an arc-shaped edge, and the first electrode edge protrudes in a direction towards the first sub-electrode.

32. The display panel of claim 26, wherein A side edge of the second sub-electrode is adjacent to a side edge of the first sub-electrode, and the adjacent side edges of the two are straight edges.

33. The display panel of claim 26, wherein In a direction of the first sub-electrode pointing to the second sub-electrode, the second sub-electrode is inclined in a direction towards a light emitting surface of the display panel.

34. The display panel of claim 1, wherein The display panel further comprises a pixel definition layer, the pixel definition layer comprises a second opening, and the main light emitting element and the auxiliary light emitting element share one second opening.

35. The display panel of claim 1, wherein The display panel further comprises a filter layer on a side of the light emitting element away from the substrate, the filter layer comprising a black matrix and color resist, wherein the color resist covers the main light emitting element in a direction perpendicular to a plane in which the substrate lies, and the light shielding layer is multiplexed with the black matrix.

36. A driving method of a display panel, comprising: The display panel of claim 1, wherein a display mode of the display panel comprises a privacy mode and a sharing mode, and the driving method comprises: In the sharing mode, the main light emitting element and the auxiliary light emitting element both emit light, and in the privacy mode, the main light emitting element emits light and the auxiliary light emitting element does not emit light.

37. The driving method of claim 36, wherein The display panel further comprises a mode control module for controlling a light emitting state of the auxiliary light emitting element according to a display mode in which the display panel is located; The display panel further comprises a pixel driving circuit electrically connected with the main light emitting element, and the pixel driving circuit is further electrically connected with the auxiliary light emitting element through the mode control module; In the sharing mode, the process that the main light emitting element and the auxiliary light emitting element emit light comprises: the pixel driving circuit transmits a driving current to the main light emitting element to drive the main light emitting element to emit light, and the mode control module controls a passageway between the pixel driving circuit and the auxiliary light emitting element to be conductive, so that the driving current provided by the pixel driving circuit is transmitted to the auxiliary light emitting element to drive the auxiliary light emitting element to emit light; In the privacy mode, the process that the main light emitting element emits light and the auxiliary light emitting element does not emit light comprises: the pixel driving circuit transmits a driving current to the main light emitting element to drive the main light emitting element to emit light, and the mode control module controls the passageway between the pixel driving circuit and the auxiliary light emitting element to be disconnected.

38. The driving method of claim 37, wherein The pixel driving circuit is electrically connected with a first light emitting control signal line for transmitting a first enable level and a first non-enable level for controlling a light emitting state of the main light emitting element, and the mode control module is electrically connected with a second light emitting control signal line for transmitting a second enable level and a second non-enable level for controlling a light emitting state of the auxiliary light emitting element, and the first enable level and the second enable level are low levels respectively; The display panel further comprises a regulation and control module comprising a NOR gate and an inverter, wherein a first input end of the NOR gate is electrically connected with the first light emitting control signal line, a second input end of the NOR gate is electrically connected with a regulation and control signal line, an input end of the inverter is electrically connected with an output end of the NOR gate, and an output end of the inverter is electrically connected with the second light emitting control signal line. In the sharing mode, the process that the second light-emitting control signal line outputs the second enable level includes: the regulating signal line outputs a low level, the NOR gate outputs a high level according to the low level output by the regulating signal line and the low level output by the first light-emitting control signal line, and the inverter outputs a low level according to the high level output by the NOR gate; In the anti-peep mode, the process that the second light-emitting control signal line outputs the second non-enable level includes: the regulating signal line outputs a high level, the NOR gate outputs a low level, and the inverter outputs a high level according to the low level output by the NOR gate.

39. A display device comprising: The display panel comprises the display panel as claimed in any one of claims 1-35.

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