Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, the display panel is provided with a first type of pixel units and a second type of pixel units, and the light emitting angle of the first type of pixel units is larger than that of the second type of pixel units. The first type of light-emitting devices of the first type of pixel units and the second type of light-emitting devices of the second type of pixel units are connected with the same pixel driving circuit, a grid electrode of a first light-emitting control transistor in the pixel driving circuit is connected with a first light-emitting control signal line, and a grid electrode of a second light-emitting control transistor in the pixel driving circuit is connected with a second light-emitting control signal line. The first light-emitting control transistor and the second light-emitting control transistor are respectively connected with the anode of the first light-emitting device and the anode of the second light-emitting device, and when one of the first light-emitting control signal line and the second light-emitting control signal line outputs an effective level, the first light-emitting control transistor and the second light-emitting control transistor are connected. And the other one of the first light-emitting control signal line and the second light-emitting control signal line outputs an invalid level, so that switching of different display modes is realized.

Description

Technical Field

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

[0002] With the development of display technology, users pay more and more attention to the protection of personal information. Therefore, anti-peeping display devices are getting more and more attention. Anti-peeping display devices are devices that prevent bystanders from seeing or even seeing the user's viewing screen without affecting the user's use. The principle is to prevent the light of a large viewing angle from being dispersed. Only the light of a straight viewing angle or a small viewing angle can be dispersed. The display screen can only be seen clearly at a straight viewing angle or a small viewing angle, thus realizing anti-peeping display. Some anti-peeping display devices are realized by attaching a layer of anti-peeping film on the display device, but this anti-peeping method cannot switch the display mode. When it is necessary to switch from anti-peeping mode to sharing mode, the anti-peeping film can only be torn off, and the two cannot be converted in real time, which cannot meet the needs of users in different scenarios.

[0003] Therefore, the existing anti-peeping display device has the technical problem of being unable to switch the display mode. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device to solve the technical problem that the existing anti-peeping display device cannot switch the display mode.

[0005] In order to achieve the above-mentioned object, according to a first aspect of the present application, a display panel is provided, the display panel comprising pixel units arranged in an array and a pixel driving circuit, the pixel units comprising a first type of pixel units and a second type of pixel units, the light emitting angle of the first type of pixel units is greater than the light emitting angle of the second type of pixel units, the first type of pixel units comprises a first type of light emitting device, the second type of pixel units comprises a second type of light emitting device, and the first type of light emitting device and the second type of light emitting device are connected to the same pixel driving circuit;

[0006] The pixel driving circuit includes a driving transistor, a switching transistor, a first light-emitting control transistor, and a second light-emitting control transistor, one electrode of the driving transistor and one electrode of the switching transistor are connected to a first node, the other electrode of the driving transistor and one electrode of the first light-emitting control transistor and one electrode of the second light-emitting control transistor are electrically connected to a second node, the gate of the first light-emitting control transistor is connected to a first light-emitting control signal line, the gate of the second light-emitting control transistor is connected to a second light-emitting control signal line, the other electrode of the first light-emitting control transistor is connected to an anode of the first type of light-emitting device, and the other electrode of the second light-emitting control transistor is connected to an anode of the second type of light-emitting device;

[0007] The display panel is configured such that when one of the first light emission control signal line and the second light emission control signal line outputs a valid level, the other of the first light emission control signal line and the second light emission control signal line outputs an invalid level.

[0008] Optionally, the pixel driving circuit also includes a third light-emitting control transistor and a reset transistor, an electrode of the third light-emitting control transistor and an electrode of the driving transistor are connected to the first node, the gate of the reset transistor is connected to the first scanning signal line, the first electrode of the reset transistor is connected to the first initialization signal line, and the second electrode of the reset transistor and the first electrode of the driving transistor are connected to the first node.

[0009] Optionally, the pixel driving circuit also includes a third light-emitting control transistor and a fourth light-emitting control transistor, an electrode of the third light-emitting control transistor and an electrode of the driving transistor are connected to the first node, a gate of the fourth light-emitting control transistor and a gate of the third light-emitting control transistor are connected to the same signal line, a first electrode of the fourth light-emitting control transistor and a second electrode of the driving transistor are connected to the second node, and a second electrode of the fourth light-emitting control transistor is connected to the first electrode of the first light-emitting control transistor and the first electrode of the second light-emitting control transistor.

[0010] Optionally, the gate of the switching transistor is connected to the second scanning signal line, the first electrode of the switching transistor is connected to the data line, the second electrode of the switching transistor and the first electrode of the driving transistor are connected to the first node, the gate of the third light-emitting control transistor is connected to the third light-emitting control signal line, the first electrode of the third light-emitting control transistor is connected to the high-potential power line, the second electrode of the third light-emitting control transistor and the first electrode of the driving transistor are connected to the first node, the second electrode of the first light-emitting control transistor is connected to the anode of the first type of light-emitting device, and the second electrode of the second light-emitting control transistor is connected to the anode of the second type of light-emitting device, and the pixel driving circuit further includes:

[0011] a compensation transistor, wherein a gate of the compensation transistor is connected to the second scanning signal line, a first electrode of the compensation transistor and the gate of the driving transistor are connected to the third node, and a second electrode of the compensation transistor and the second electrode of the driving transistor are connected to the second node;

[0012] a first initialization transistor, wherein a gate of the first initialization transistor is connected to a reset signal line, a first electrode of the first initialization transistor is connected to a second initialization signal line, and a second electrode of the first initialization transistor and a gate of the driving transistor are connected to the third node;

[0013] a second initialization transistor, wherein a gate of the second initialization transistor is connected to the reset signal line, a first electrode of the second initialization transistor is connected to a third initialization signal line, and a second electrode of the second initialization transistor is connected to the first electrode of the first emission control transistor and the first electrode of the second emission control transistor;

[0014] A storage capacitor, wherein a first plate of the storage capacitor is connected to the high potential power line, and a second plate of the storage capacitor and a gate of the driving transistor are connected to the third node.

[0015] Optionally, the display panel is configured such that within one cycle, the reset signal line outputs a valid level, and when the reset signal line outputs a valid level, the first light-emitting control signal line or the second light-emitting control signal line outputs a valid level;

[0016] Alternatively, the display panel is configured such that within one cycle, the reset signal line outputs two valid levels, when the reset signal line outputs a first valid level, the first light-emitting control signal line outputs a valid level, and the second light-emitting control signal line outputs an invalid level; when the reset signal line outputs a second valid level, the first light-emitting control signal line outputs an invalid level, and the second light-emitting control signal line outputs a valid level.

[0017] Optionally, the display panel includes:

[0018] substrate;

[0019] A driving circuit layer is arranged on one side of the substrate;

[0020] A light-emitting functional layer is arranged on a side of the driving circuit layer away from the substrate, wherein the light-emitting functional layer comprises a pixel definition layer, and the pixel definition layer comprises a pixel opening;

[0021] An encapsulation layer is arranged on a side of the light-emitting functional layer away from the driving circuit layer;

[0022] A light blocking layer, arranged on a side of the encapsulation layer away from the light-emitting functional layer;

[0023] The light blocking layer is arranged in the arrangement area of ​​the second type of pixel unit, and the light blocking layer is arranged corresponding to the pixel definition layer.

[0024] Optionally, the first type of pixel unit includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, which have different luminous colors, and the second type of pixel unit includes a fourth sub-pixel unit, a fifth sub-pixel unit and a sixth sub-pixel unit, which have different luminous colors, the first sub-pixel unit and the fourth sub-pixel unit have the same luminous color, the second sub-pixel unit and the fifth sub-pixel unit have the same luminous color, and the third sub-pixel unit and the sixth sub-pixel unit have the same luminous color.

[0025] Optionally, the first sub-pixel unit includes a first light-emitting device, the second sub-pixel unit includes a second light-emitting device, the third sub-pixel unit includes a third light-emitting device, the fourth sub-pixel unit includes a fourth light-emitting device, the fifth sub-pixel unit includes a fifth light-emitting device, and the sixth sub-pixel unit includes a sixth light-emitting device. The pixel driving circuit includes a first pixel driving circuit, a second pixel driving circuit, and a third pixel driving circuit. The first pixel driving circuit is electrically connected to the first light-emitting device and the fourth light-emitting device, the second pixel driving circuit is connected to the second light-emitting device and the fifth light-emitting device, and the third pixel driving circuit is connected to the third light-emitting device and the sixth light-emitting device.

[0026] Optionally, the first sub-pixel unit and the fourth sub-pixel unit are alternately arranged in the same column, the second sub-pixel unit and the fifth sub-pixel unit are alternately arranged in the same row, the third sub-pixel unit and the sixth sub-pixel unit are alternately arranged in the same column, a column of the second sub-pixel units and a column of the fifth sub-pixel units are arranged correspondingly to a column of the third sub-pixel units, a row of the third sub-pixel units and a row of the sixth sub-pixel units are arranged between two adjacent rows of the second sub-pixel units, a column of the second sub-pixel units and a column of the fifth sub-pixel units are arranged between two adjacent columns of the first sub-pixel units, and the first sub-pixel units in two adjacent columns are staggered.

[0027] According to a second aspect of the present application, a display device is provided, comprising a display panel as described in any one of the above embodiments.

[0028] The embodiment of the present application provides a display panel and a display device, wherein the display panel is provided with a first type of pixel unit and a second type of pixel unit, wherein the light emitting angle of the first type of pixel unit is greater than the light emitting angle of the second type of pixel unit, the first type of light emitting device of the first type of pixel unit and the second type of light emitting device of the second type of pixel unit are connected to the same pixel driving circuit, the pixel driving circuit includes a first light emitting control transistor and a second light emitting control transistor, the gate of the first light emitting control transistor is connected to the first light emitting control signal line, the gate of the second light emitting control transistor is connected to the second light emitting control signal line, the first light emitting control transistor and the second light emitting control transistor are respectively connected to the anode of the first type of light emitting device and the anode of the second type of light emitting device, and the display panel is configured such that when one of the first light emitting control signal line and the second light emitting control signal line outputs a valid level, the other of the first light emitting control signal line and the second light emitting control signal line outputs an invalid level, then when the first light emitting control signal line inputs a valid level, the first type of pixel unit is turned on to realize normal display, and when the second light emitting control signal line inputs a valid level, the second type of pixel unit is turned on to realize anti-peeping display, thereby realizing switching of different display modes.

[0029] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0031] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0032] Figure 1 A schematic diagram of the pixel arrangement of a display panel provided in an embodiment of the present application.

[0033] Figure 2 A schematic diagram of a film layer stacking structure of a first type of pixel unit of a display panel is provided for an embodiment of the present application.

[0034] Figure 3 A schematic diagram of the film layer stacking structure of the second type of pixel unit of the display panel provided in an embodiment of the present application.

[0035] Figure 4 A circuit diagram of a first pixel driving circuit of a display panel provided in an embodiment of the present application.

[0036] Figure 5 A circuit diagram of a second pixel driving circuit of a display panel provided in an embodiment of the present application.

[0037] Figure 6 for Figure 4 A timing diagram of each signal line when the first type of light-emitting device in the pixel driving circuit is displayed.

[0038] Figure 7 for Figure 5 A timing diagram of each signal line when the first type of light-emitting device in the pixel driving circuit is displayed.

[0039] Figure 8 for Figure 4 A timing diagram of each signal line when the second type of light-emitting device in the pixel driving circuit is displayed.

[0040] Fig. 9 for Figure 5 A timing diagram of each signal line when the second type of light-emitting device in the pixel driving circuit is displayed.

[0041] Fig.10 A schematic diagram of the light emission angle of the second type of light emitting device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0043] In the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" means that the two are directly connected, and "electrical connection" means that the two can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In view of the technical problem that the existing anti-peeping display device cannot switch the display mode, the embodiments of the present application provide a display panel and a display device to solve the above technical problem.

[0045] Figure 1 A schematic diagram of the pixel arrangement of a display panel provided in an embodiment of the present application. Figure 2 A schematic diagram of a film layer stacking structure of a first type of pixel unit of a display panel is provided for an embodiment of the present application. Figure 3 A schematic diagram of the film layer stacking structure of the second type of pixel unit of the display panel provided in an embodiment of the present application. Figure 4A circuit diagram of a first pixel driving circuit of a display panel provided in an embodiment of the present application. Figure 5 A circuit diagram of a second pixel driving circuit of a display panel provided in an embodiment of the present application. Figure 6 for Figure 4 A timing diagram of each signal line when the first type of light-emitting device in the pixel driving circuit is displayed. Figure 7 for Figure 5 A timing diagram of each signal line when the first type of light-emitting device in the pixel driving circuit is displayed. Figure 8 for Figure 4 A timing diagram of each signal line when the second type of light-emitting device in the pixel driving circuit is displayed. Fig. 9 for Figure 5 A timing diagram of each signal line when the second type of light-emitting device in the pixel driving circuit is displayed. Fig.10 A schematic diagram of the light emission angle of the second type of light emitting device provided in an embodiment of the present application.

[0046] like Figures 1 to 10 As shown, an embodiment of the present application provides a display panel, the display panel 1 includes pixel units 30 arranged in an array and a pixel driving circuit 120, the pixel units 30 include a first type of pixel unit 31 and a second type of pixel unit 32, the light emitting angle of the first type of pixel unit 31 is greater than the light emitting angle of the second type of pixel unit 32, the first type of pixel unit 31 includes a first type of light emitting device 31a, the second type of pixel unit 32 includes a second type of light emitting device 32a, and the first type of light emitting device 31a and the second type of light emitting device 32a are connected to the same pixel driving circuit 120;

[0047] The pixel driving circuit 120 includes a driving transistor T1, a switching transistor T2, a first light-emitting control transistor T6, and a second light-emitting control transistor T8, one electrode of the driving transistor T1 and one electrode of the switching transistor T2 are connected to a first node A, the other electrode of the driving transistor T1 and one electrode of the first light-emitting control transistor T6 and one electrode of the second light-emitting control transistor T8 are electrically connected to a second node B, the gate of the first light-emitting control transistor T6 is connected to a first light-emitting control signal line EM2, the gate of the second light-emitting control transistor T8 is connected to a second light-emitting control signal line EM3, the other electrode of the first light-emitting control transistor T6 is connected to an anode of the first type of light-emitting device C1, and the other electrode of the second light-emitting control transistor T8 is connected to an anode of the second type of light-emitting device C2;

[0048] The display panel 1 is configured such that when one of the first light emission control signal line EM2 and the second light emission control signal line EM3 outputs a valid level, the other of the first light emission control signal line EM2 and the second light emission control signal line EM3 outputs an invalid level.

[0049] An embodiment of the present application provides a display panel, which is provided with a first type of pixel unit and a second type of pixel unit, wherein the light emitting angle of the first type of pixel unit is greater than the light emitting angle of the second type of pixel unit, the first type of light emitting device of the first type of pixel unit and the second type of light emitting device of the second type of pixel unit are connected to the same pixel driving circuit, the pixel driving circuit includes a first light emitting control transistor and a second light emitting control transistor, the gate of the first light emitting control transistor is connected to the first light emitting control signal line, the gate of the second light emitting control transistor is connected to the second light emitting control signal line, the first light emitting control transistor and the second light emitting control transistor are respectively connected to the anode of the first type of light emitting device and the anode of the second type of light emitting device, and the display panel is configured so that when one of the first light emitting control signal line and the second light emitting control signal line outputs a valid level, the other of the first light emitting control signal line and the second light emitting control signal line outputs an invalid level, then when the first light emitting control signal line inputs a valid level, the first type of pixel unit is turned on to achieve normal display, and when the second light emitting control signal line inputs a valid level, the second type of pixel unit is turned on to achieve anti-peeping display, thereby achieving switching of different display modes.

[0050] Specifically, the normal display mode refers to a mode in which the display image can be seen at a wide viewing angle, and the anti-peeping display mode refers to a mode in which the display image cannot be seen at a wide viewing angle. The wide viewing angle can be set according to demand, for example, the angle of the wide viewing angle is greater than 75 degrees.

[0051] Specifically, the light emitting angle of the first type of pixel unit is greater than the light emitting angle of the second type of pixel unit, which means that the maximum angle of the light emitted by the first type of pixel unit that can be emitted outside the display panel is greater than the maximum angle of the light emitted by the second type of pixel unit that can be emitted outside the display panel, and the angle of the light emitted by the first type of light-emitting device in the first type of pixel unit can be the same as or different from the angle of the light emitted by the second type of light-emitting device in the second type of pixel unit.

[0052] by Fig.10For example, the light 301 emitted by the second type of light emitting device 32a will diverge in all directions (when the pixel definition layer is a non-light-transmitting material, the maximum angle of the light emitted by the second type of light emitting device 32a to the outside of the light-emitting functional layer is determined according to the opening of the pixel definition layer; when the pixel definition layer is a light-transmitting material, the maximum angle of the light emitted by the second type of light emitting device 32a to the outside of the light-emitting functional layer is determined according to the thickness of the light-emitting functional layer or other parameters; other parameters may be designed and parameters for avoiding color mixing between sub-pixels). When the light-blocking layer 19 is not set, the angles of the light emitted by the first type of light emitting device 31a and the second type of light emitting device 32a that can be emitted outside the display panel may be the same. After the light-blocking layer 19 is set in the corresponding area of ​​the second type of light emitting device, the light will be blocked by the light-blocking layer 19 when it diverges, resulting in the inability to emit light at a large angle. The maximum angle of the light emitted by the optical device 32a that can eventually be emitted outside the display panel, the maximum angle of the light emitted by the first type of light emitting device 31a that can eventually be emitted outside the display panel, and as the distance between the light blocking layer 19 and the second type of light emitting device 32a becomes larger, the maximum angle of the light emitted by the second type of light emitting device 32a that can eventually be emitted outside the display panel will be further reduced, so that when the second type of light emitting device is emitting light, the display screen can only be clearly seen when the display panel is viewed at a straight angle and a small angle, and the display panel cannot be seen clearly when the display panel is viewed at a wide viewing angle. Since the first type of light emitting device has no light blocking layer, the angle of the light emitted by the first type of light emitting device that can eventually be emitted outside the display panel is larger, and the display screen can be clearly seen at a wide viewing angle, thereby realizing the normal switching between the anti-peeping display mode and the normal display mode.

[0053] Specifically, the above embodiment is described by taking the light blocking layer to realize that the light output angle of the first type of pixel unit is greater than the light output angle of the second type of pixel unit as an example, but the embodiments of the present application are not limited to this, and the light output angle of the first type of pixel unit can be realized by other methods.

[0054] Specifically, the drawings in the embodiments of the present application will use different types of labels to identify the same structure. This is because the film layer structure and circuit design are used to illustrate the structure respectively. However, it can be understood that the two labels actually identify the same structure. For example, the labels 31a and C1 identify the first type of light-emitting device from the perspective of film layer structure and circuit design respectively. In essence, the two labels identify the same structure. Similarly, the second type of light-emitting device 32a and the second type of light-emitting device C2 will use two labels to indicate their connection relationship and position in the film layer structure and circuit design, etc., which will not be repeated in the following embodiments.

[0055] Specifically, the effective level refers to the level that can turn on the transistor. For example, when the gate of the transistor is connected to a signal line and the transistor is a P-type transistor, when the signal line outputs a high-potential signal, the transistor is turned off, and when the signal line outputs a low-potential signal, the transistor is turned on, and the low-potential signal is the effective level; when the transistor is an N-type transistor, when the signal line outputs a high-potential signal, the transistor is turned on, and when the signal line outputs a low-potential signal, the transistor is turned off, and the high-potential signal is the effective level.

[0056] Specifically, the display panel is configured so that when one of the first light-emitting control signal line and the second light-emitting control signal line outputs a valid level, the other of the first light-emitting control signal line and the second light-emitting control signal line outputs an invalid level, which means that when the first light-emitting control signal line outputs a valid level, the second light-emitting control signal line outputs an invalid level; when the second light-emitting control signal line outputs a valid level, the first light-emitting control signal line outputs an invalid level; when the first light-emitting control signal line outputs an invalid level, the second light-emitting control signal line can output a valid level, and the second light-emitting control signal line can also output an invalid level; when the second light-emitting control signal line outputs an invalid level, the first light-emitting control signal line can output a valid level, and the first light-emitting control signal line can also output an invalid level.

[0057] In some embodiments, Figure 4 As shown, the pixel driving circuit 120 further includes a third light emitting control transistor T5 and a reset transistor T9, an electrode of the third light emitting control transistor T5 and an electrode of the driving transistor T1 are connected to the first node A, a gate of the reset transistor T9 is connected to the first scanning signal line Scan1, a first electrode of the reset transistor T9 is connected to the first initialization signal line VI3, and a second electrode of the reset transistor T9 and a first electrode of the driving transistor T1 are connected to the first node A. By making the pixel driving circuit further include a third light emitting control transistor and a reset transistor, the third light emitting control transistor and the driving transistor are connected to the first node, the first electrode of the reset transistor is connected to the first initialization signal line, and the second electrode of the reset transistor and the first electrode of the driving transistor are connected to the first node, the display panel can be controlled to emit light through the third light emitting control transistor, and the first node is reset through the reset transistor, so that the pixel driving circuit has a better display effect when displaying at a low frequency.

[0058] Specifically, Figure 4 As shown, the first electrode of the first light emission control transistor T6 and the first electrode of the second light emission control transistor T8 are connected to the second node B with the second electrode of the driving transistor T1.

[0059] In some embodiments, Figure 5As shown, the pixel driving circuit 120 further includes a third light-emitting control transistor T5 and a fourth light-emitting control transistor T10, an electrode of the third light-emitting control transistor T5 and an electrode of the driving transistor T1 are connected to the first node A, a gate of the fourth light-emitting control transistor T10 and a gate of the third light-emitting control transistor T5 are connected to the same signal line, a first electrode of the fourth light-emitting control transistor T10 and a second electrode of the driving transistor T1 are connected to the second node B, and a second electrode of the fourth light-emitting control transistor T10 is connected to a first electrode of the first light-emitting control transistor T6 and a first electrode of the second light-emitting control transistor T8. By making the pixel driving circuit include the third light-emitting control transistor and the fourth light-emitting control transistor, the third light-emitting control transistor and the driving transistor are connected to the first node, and the fourth light-emitting control transistor and the driving transistor are connected to the second node, the display panel can be controlled to emit light and avoid leakage current affecting the display.

[0060] In some embodiments, Figure 4 , Figure 5 As shown, the gate of the switch transistor T2 is connected to the second scan signal line Scan2, the first electrode of the switch transistor T2 is connected to the data line Data, the second electrode of the switch transistor T2 is connected to the first electrode of the driving transistor T1 to the first node A, the gate of the third light emitting control transistor T5 is connected to the third light emitting control signal line EM1, the first electrode of the third light emitting control transistor T5 is connected to the high potential power line VDD, the second electrode of the third light emitting control transistor T5 is connected to the first electrode of the driving transistor T1 to the first node A, the second electrode of the first light emitting control transistor T6 is connected to the anode of the first type of light emitting device C1, the second electrode of the second light emitting control transistor T8 is connected to the anode of the second type of light emitting device C2, and the pixel driving circuit 120 further includes:

[0061] a compensation transistor T3, wherein a gate of the compensation transistor T3 is connected to the second scan signal line Scan2, a first electrode of the compensation transistor T3 and the gate of the driving transistor T1 are connected to a third node Q, and a second electrode of the compensation transistor T3 and the second electrode of the driving transistor T1 are connected to the second node B;

[0062] a first initialization transistor T4, wherein a gate of the first initialization transistor T4 is connected to a reset signal line RST, a first electrode of the first initialization transistor T4 is connected to a second initialization signal line VI-Gate, and a second electrode of the first initialization transistor T4 and a gate of the driving transistor T1 are connected to the third node Q;

[0063] a second initialization transistor T7, wherein a gate of the second initialization transistor T7 is connected to the reset signal line RST, a first electrode of the second initialization transistor T7 is connected to a third initialization signal line VI-ANO, and a second electrode of the second initialization transistor T7 is connected to a first electrode of the first emission control transistor T6 and a first electrode of the second emission control transistor T8;

[0064] A storage capacitor Cst, a first plate of the storage capacitor Cst is connected to the high potential power line VDD, and a second plate of the storage capacitor Cst is connected to the gate of the driving transistor T1 at the third node Q.

[0065] Specifically, Figure 4 , Figure 5 As shown, the gate of the compensation transistor includes two gates, and the gate of the first initialization transistor includes two gates.

[0066] In some embodiments, Figures 6 to 9 As shown, the display panel 1 is configured such that within a period T, the reset signal line RST outputs a valid level, and when the reset signal line RST outputs a valid level, the first light emitting control signal line EM2 or the second light emitting control signal line EM3 outputs a valid level;

[0067] Alternatively, the display panel 1 is configured such that within one period T, the reset signal line RST outputs two valid levels, and when the reset signal line RST outputs a first valid level, the first light-emitting control signal line EM2 outputs a valid level, and the second light-emitting control signal line EM3 outputs an invalid level; when the reset signal line RST outputs a second valid level, the first light-emitting control signal line EM2 outputs an invalid level, and the second light-emitting control signal line EM3 outputs a valid level.

[0068] By making the reset signal line output a valid level within a cycle, when the reset signal line outputs the valid level, the first light-emitting control signal line outputs the valid level, the anode of the first type of light-emitting device can be reset. By making the reset signal line output a valid level within a cycle, when the reset signal line outputs the valid level, the second light-emitting control line outputs the valid level, the anode of the second type of light-emitting device can be reset, thereby respectively resetting the anodes of the first type of light-emitting device and the second type of light-emitting device in different cycles.

[0069] By outputting two valid levels through the reset signal line in one cycle, when the reset signal line outputs the first valid level, the first light-emitting control signal line outputs a valid level, and the second light-emitting control signal line outputs an invalid level; when the reset signal line outputs the second valid level, the first light-emitting control signal line outputs an invalid level, and the second light-emitting control signal line outputs a valid level, the anodes of the first type of light-emitting device and the second light-emitting device can be reset in one cycle, and in the next cycle, the anodes may not be reset, thereby shortening the time occupied by the reset stage.

[0070] Specifically, one cycle may be one frame, or multiple frames, or one cycle may be half a frame.

[0071] Specifically, the level and potential in the embodiments of the present application can be regarded as having the same meaning.

[0072] Specifically, Figures 4 to 9 As shown, Figure 4 The pixel driving circuit and Figure 6 Taking the timing in as an example, when the first type of light emitting device C1 displays, the working process of the display panel is: in a period T, the second light emitting control signal line is always at a high potential to prevent the second type of light emitting device C2 from emitting light. In the first time period t1, the first light emitting control signal line EM2 is set to a low potential, the third light emitting control signal line EM1 is set to a high potential, the first light emitting control transistor T6 is turned on, and the third light emitting control transistor T5 is turned off. In the second time period t2, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the first type of light emitting device C1 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the third time period t3, the reset signal line RST is set to a high potential, the first light emitting control signal line EM2 is set to a low potential, the third light emitting control signal line EM1 is set to a high potential, the first light emitting control transistor T6 is turned on, and the third light emitting control transistor T5 is turned off. 2 is set to a high potential, the first initialization transistor T4, the second initialization transistor T7 and the first light-emitting control transistor T6 are turned off, in the fourth time period t4, the second scan signal line Scan2 is set to a low potential, the switch transistor T2 and the compensation transistor T3 are turned on, the data line Data writes a data signal, and the driving transistor is compensated, in the fifth time period t5, the second scan signal line Scan2 is set to a high potential, the switch transistor T2 and the compensation transistor T3 are turned off, in the sixth time period t6, the first scan signal line Scan1 is set to a low potential, the reset transistor T9 is turned on, and the first node A is reset, in the seventh time period t7, the first light-emitting control signal line EM2 and the third light-emitting control signal line EM1 are set to a low potential, the third light-emitting control transistor T5 and the first light-emitting control transistor T6 are turned on, so that the first type of light-emitting device displays.

[0073] Specifically, it can be understood that in the embodiments of the present application Figures 6 to 9 In the figure, when the signal changes, considering that the signal line has impedance, the signal does not directly jump from high potential to low potential, or from low potential to high potential, as shown in the figure, during the rising and falling process, but there will be a certain rising time and falling time to reach the potential that needs to be changed. Therefore, when different signals change potential, there will be a certain time difference between the transitions of different signals. For example, after the first scanning signal line Scan1 changes from low potential to high potential, the first light-emitting control signal line EM2 will change from high potential to low potential after a certain period of time, thereby preventing the time when the first light-emitting control signal line EM2 is placed at a low potential from crossing with the time when the first scanning signal line Scan1 is placed at a low potential due to the influence of impedance, affecting normal display. Similarly, a defined time difference will also be set when other signals change, which will not be repeated here.

[0074] Specifically, Figure 4 The pixel driving circuit and Figure 8 As an example, when the second type of light emitting device C2 displays, the working process of the display panel is: in a period T, the first light emitting control signal line EM2 is always at a high potential to prevent the first type of light emitting device C1 from emitting light. In the first time period t1, the second light emitting control signal line EM3 is set to a low potential, the third light emitting control signal line EM1 is set to a high potential, the second light emitting control transistor T8 is turned on, and the third light emitting control transistor T5 is turned off. In the second time period t2, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the second type of light emitting device C2 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the third time period t3, the reset signal line RST is set to a high potential, the second light emitting control signal line EM3 is set to a low potential, the third light emitting control signal line EM1 is set to a high potential, the second light emitting control transistor T8 is turned on, and the third light emitting control transistor T5 is turned off. EM3 is set to a high potential, the first initialization transistor T4, the second initialization transistor T7 and the second light-emitting control transistor T8 are turned off, in the fourth time period t4, the second scan signal line Scan2 is set to a low potential, the switch transistor T2 and the compensation transistor T3 are turned on, the data line Data writes a data signal, and the driving transistor is compensated, in the fifth time period t5, the second scan signal line Scan2 is set to a high potential, the switch transistor T2 and the compensation transistor T3 are turned off, in the sixth time period t6, the first scan signal line Scan1 is set to a low potential, the reset transistor T9 is turned on, and the first node A is reset, in the seventh time period t7, the second light-emitting control signal line EM3 and the third light-emitting control signal line EM1 are set to a low potential, the third light-emitting control transistor T5 and the second light-emitting control transistor T8 are turned on, so that the second type of light-emitting device displays.

[0075] Specifically, Figure 5 The pixel driving circuit and Figure 7Taking the timing in as an example, when the first type of light emitting device C1 displays, the working process of the display panel is: in one cycle T, in the first time period t1, the first light control signal line EM2 is set to a low potential, the second light control signal line EM3 is set to a high potential, and the third light control signal line EM1 is set to a high potential, the first light control transistor T6 is turned on, the second light control transistor T8 is turned off, and the third light control transistor T5 is turned off. In the second time period t2, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the first type of light emitting device C1 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the third time period t3, the reset signal line RST is set to a high potential, the first light control signal line EM2 is set to a high potential, and the second light control signal line EM3 is set to a low potential. The first initialization transistor T4, the second initialization transistor T7 and the first light control transistor T6 are turned off, and the second light control transistor T8 is turned on. In the fourth time period t4, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the second type light-emitting device C2 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the fifth time period t5, the reset signal line RST is set to a high potential, the first initialization transistor T4 and the second initialization transistor T7 are turned off, in the sixth time period t6, the second scan signal line Scan2 is set to a low potential, the switch transistor T2 and the compensation transistor T3 are turned on, the data line Data writes the data signal, and the driving transistor is compensated, in the seventh time period t7, the second scan signal line Scan2 and the second light-emitting control signal line EM3 are set to a high potential, the first light-emitting control signal line EM2 and the third light-emitting control signal line EM1 are set to a low potential, the switch transistor T2, the compensation transistor T3 and the second light-emitting control transistor T8 are turned off, the third light-emitting control transistor T5 and the first light-emitting control transistor T6 are turned on, so that the first type of light-emitting device displays.

[0076] Specifically, Figure 5 The pixel driving circuit and Fig. 9Taking the timing in as an example, when the second type of light emitting device C2 displays, the working process of the display panel is: in one cycle T, in the first time period t1, the second light emitting control signal line EM3 is set to a low potential, the first light emitting control signal line EM2 is set to a high potential, the third light emitting control signal line EM1 is set to a high potential, the second light emitting control transistor T8 is turned on, the first light emitting control transistor T6 is turned off, and the third light emitting control transistor T5 is turned off. In the second time period t2, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the second type of light emitting device C2 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the third time period t3, the reset signal line RST is set to a high potential, the second light emitting control signal line EM3 is set to a high potential, and the first light emitting control signal line EM2 is set to a low potential. The first initialization transistor T4, the second initialization transistor T7 and the second light emitting control transistor T8 are turned off, and the first light emitting control transistor T6 is turned on. In the fourth time period t4, the reset signal line RST is set to a low potential, the first initialization transistor T4 and the second initialization transistor T7 are turned on, and the third node Q and the anode of the first type light-emitting device C1 are reset respectively through the second initialization signal line VI-Gate and the third initialization signal line VI-ANO. In the fifth time period t5, the reset signal line RST is set to a high potential, the first initialization transistor T4 and the second initialization transistor T7 are turned off, in the sixth time period t6, the second scan signal line Scan2 is set to a low potential, the switch transistor T2 and the compensation transistor T3 are turned on, the data line Data writes the data signal, and the driving transistor is compensated, in the seventh time period t7, the second scan signal line Scan2 and the first light-emitting control signal line EM2 are set to a high potential, the second light-emitting control signal line EM3 and the third light-emitting control signal line EM1 are set to a low potential, the switch transistor T2, the compensation transistor T3 and the first light-emitting control transistor T6 are turned off, the third light-emitting control transistor T5 and the second light-emitting control transistor T8 are turned on, so that the second type of light-emitting device displays.

[0077] Specifically, it is understandable that Figure 4 The pixel driving circuit in can also adopt other timings, such as Figure 6 and Figure 8 The timing of the first light emitting control signal line EM2, the second light emitting control signal line EM3, the third light emitting control signal line EM1, the reset signal line RST and the second scanning signal line Scan2 in the Figure 7 and Fig. 9The timing of the first light-emitting control signal line EM2, the second light-emitting control signal line EM3, the third light-emitting control signal line EM1, the reset signal line RST and the second scanning signal line Scan2 is modified accordingly, and the timing of the first scanning signal line Scan1 is modified accordingly. Similarly, Figure 5 The pixel driving circuit in the embodiment may also adopt other timing sequences, such as Figure 7 and Fig. 9 The timing of the first light emitting control signal line EM2, the second light emitting control signal line EM3, the third light emitting control signal line EM1, the reset signal line RST and the second scanning signal line Scan2 in the Figure 6 and Figure 8 The timing of the first light emitting control signal line EM2, the second light emitting control signal line EM3, the third light emitting control signal line EM1, the reset signal line RST and the second scan signal line Scan2.

[0078] Specifically, it can be understood that, since the display panel can be in the normal display mode for a long time, can be in the anti-peeping display mode for a long time, or can switch between the normal display mode and the anti-peeping display mode, the display panel can be in the normal display mode for a long time when displaying. Figure 6 or Figure 7 Or the corresponding extended timing, maintain normal display mode, can also be used for a long time Figure 8 or Fig. 9 Or the corresponding extended timing, maintaining the anti-peeping display mode, can also be used for one frame (or half frame or multiple frames) Figure 6 or Figure 7 Or the corresponding extended timing, another frame (or half frame or multiple frames) uses Figure 8 or Fig. 9 Or the obtained timing is extended accordingly, and the normal display mode and the anti-peeping display mode are switched for display.

[0079] In some embodiments, Figure 2 , Figure 3 As shown, the display panel 1 includes a substrate 11, a driving circuit layer 12, a light-emitting functional layer 14, an encapsulation layer 15 and a light-blocking layer 19, the driving circuit layer 12 is arranged on one side of the substrate 11, the light-emitting functional layer 14 is arranged on a side of the driving circuit layer 12 away from the substrate 11, the light-emitting functional layer 14 includes a pixel definition layer 142, the pixel definition layer 142 includes a pixel opening, the encapsulation layer 15 is arranged on a side of the light-emitting functional layer 14 away from the driving circuit layer 12, and the light-blocking layer 19 is arranged on a side of the encapsulation layer 15 away from the light-emitting functional layer 14;

[0080] The light-blocking layer 19 is arranged in the setting area of ​​the second type pixel unit 32, and the light-blocking layer 19 is arranged corresponding to the pixel definition layer 142. By making the display panel include a light-blocking layer, the light-blocking layer is arranged on the side of the encapsulation layer away from the light-emitting functional layer, the light-blocking layer is arranged in the setting area of ​​the second type pixel unit, and the light-blocking layer is arranged corresponding to the pixel definition layer, the light with a wide viewing angle emitted by the second type light-emitting device can be blocked by the light-blocking layer to prevent the light with a wide viewing angle emitted by the second type light-emitting device from emitting out of the display panel, so that anti-peeping display can be achieved when the second type light-emitting device emits light, and the light-blocking layer is not arranged in the setting area of ​​the first type pixel unit, so that the first type pixel unit can emit light with a wide viewing angle to achieve normal display, thereby achieving switching between different display modes.

[0081] Specifically, Figure 2 , Figure 3 As shown, the driving circuit layer 12 includes a buffer layer 121, an active layer 122, a first gate insulating layer 123, a first gate layer 124, a second gate insulating layer 125, a second gate layer 126, an interlayer insulating layer 127, a first source and drain layer 128, a passivation layer 129, a first planarization layer 131, a second source and drain layer 132, a second planarization layer 133 and a third planarization layer 134.

[0082] Specifically, it can be understood that each signal line and each transistor in the pixel driving circuit can be formed by each film layer in the driving circuit layer. Figure 2 and Figure 3 The driving circuit layer only shows the structure of one transistor in each pixel driving circuit, but it can be understood that the driving circuit layer can also include the structure of other transistors and signal lines in each pixel driving circuit. For example, the driving circuit layer can use a second source and drain layer to form a data line, but the embodiments of the present application are not limited to this.

[0083] Specifically, Figure 2 , Figure 3As shown, the light-emitting function layer 14 includes a pixel electrode layer 141, a pixel definition layer 142, a light-emitting material layer 143 and a common electrode layer 144, the light-emitting material layer 143 includes a first light-emitting material layer 143a, a second light-emitting material layer 143b, a third light-emitting material layer 143c, a fourth light-emitting material layer 143d, a fifth light-emitting material layer 143e and a sixth light-emitting material layer 143f, the light-emitting color of the first light-emitting material layer 143a can be the same as the light-emitting color of the fourth light-emitting material layer 143d, the light-emitting color of the second light-emitting material layer 143b can be the same as the light-emitting color of the fifth light-emitting material layer 143e, the light-emitting color of the third light-emitting material layer 143c can be the same as the light-emitting color of the sixth light-emitting material layer 143f, and the light-emitting colors of the first light-emitting material layer 143a, the second light-emitting material layer 143b and the third light-emitting material layer 143c can be different from each other.

[0084] Specifically, the light emitting colors of the first light emitting material layer 143a, the second light emitting material layer 143b, and the third light emitting material layer 143c are blue, green, and red, respectively, but the embodiments of the present application are not limited thereto. For example, the light emitting colors of the first light emitting material layer 143a, the second light emitting material layer 143b, and the third light emitting material layer 143c are red, blue, and green, respectively, or green, blue, and red, respectively, or red, green, and blue, respectively.

[0085] Specifically, the first luminescent material layer and the fourth luminescent material layer may have the same size, specifically, the length of the first luminescent material layer may be equal to the length of the fourth luminescent material layer, the width of the first luminescent material layer may be equal to the width of the fourth luminescent material layer, and the thickness of the first luminescent material layer may be equal to the thickness of the fourth luminescent material layer. The second luminescent material layer and the fifth luminescent material layer may also have the same size, and the third luminescent material layer and the sixth luminescent material layer may also have the same size. For specific sizes, refer to the design of the first luminescent material layer and the fourth luminescent material layer.

[0086] Specifically, the sizes of the first light-emitting material layer, the second light-emitting material layer and the third light-emitting material layer may be different from each other. Specifically, the length of the first light-emitting material layer may be different from the length of the second light-emitting material layer, and / or the width of the first light-emitting material layer may be different from the width of the second light-emitting material layer, and / or the thickness of the first light-emitting material layer may be different from the thickness of the second light-emitting material layer, the length of the first light-emitting material layer may be different from the length of the third light-emitting material layer, and / or the width of the first light-emitting material layer may be different from the width of the third light-emitting material layer, and / or the thickness of the first light-emitting material layer may be different from the thickness of the third light-emitting material layer, the length of the second light-emitting material layer may be different from the length of the third light-emitting material layer, and / or the width of the second light-emitting material layer may be different from the width of the third light-emitting material layer, and / or the thickness of the second light-emitting material layer may be different from the thickness of the third light-emitting material layer. By making the sizes of the first light-emitting material layer, the second light-emitting material layer and the third light-emitting material layer different from each other, the sizes thereof may be set according to the luminous efficiency of different light-emitting materials, so that the luminous effects of each sub-pixel are the same or similar.

[0087] Specifically, it can be understood that the pixel electrode layer 141 includes multiple pixel electrodes, and the pixel electrode, the first light-emitting material layer and the common electrode layer can form a first light-emitting device. Similarly, the pixel electrode, the second light-emitting material layer and the common electrode layer can form a second light-emitting device, the pixel electrode, the third light-emitting material layer and the common electrode layer can form a third light-emitting device, the pixel electrode, the fourth light-emitting material layer and the common electrode layer can form a fourth light-emitting device, the pixel electrode, the fifth light-emitting material layer and the common electrode layer can form a fifth light-emitting device, and the pixel electrode, the sixth light-emitting material layer and the common electrode layer can form a sixth light-emitting device.

[0088] Specifically, Figure 2 , Figure 3 As shown, the display panel 1 further includes a touch layer 16 , a first flat layer 17 , a second flat layer 18 , a third flat layer 21 , an adhesive 22 and a cover plate.

[0089] Specifically, the touch layer 16 may include a first touch metal layer, a touch insulating layer, and a second touch metal layer which are sequentially arranged.

[0090] Specifically, the display panel may further include a polarizer.

[0091] Specifically, the display panel may further include a color film layer, the color film layer including a first color resist, a second color resist and a third color resist of different transmittance colors, the first color resist is arranged corresponding to the first luminescent material layer and the fourth luminescent material layer, the second color resist is arranged corresponding to the second luminescent material layer and the fifth luminescent material layer, the third color resist is arranged corresponding to the third luminescent material layer and the sixth luminescent material layer, the transmittance color of the first color resist is the same as the luminescent color of the first luminescent material layer, the transmittance color of the second color resist is the same as the luminescent color of the second luminescent material layer, and the transmittance color of the third color resist is the same as the luminescent color of the third luminescent material layer.

[0092] Specifically, the color filter layer may further include a black matrix. The black matrix is ​​arranged corresponding to the pixel definition layer. The color filter layer may be arranged between the encapsulation layer and the light blocking layer. Specifically, for a display panel provided with a color filter layer, although the black matrix can block the light emitted by the light emitting device, the function of the black matrix is ​​mainly to prevent crosstalk between adjacent sub-pixels. Moreover, the black matrix is ​​closer to the light emitting device than the light blocking layer. Fig.10 It can be seen that since the black matrix is ​​relatively close to the light-emitting device, the light blocking effect at a large viewing angle is poor, and light is still emitted at a large viewing angle, so normal display can be achieved. The light-blocking layer is relatively far away from the light-emitting device, and the light blocking effect at a large viewing angle is better, and the light emitted at a large viewing angle is less or even no, so anti-peeping display can be achieved.

[0093] In some embodiments, Figure 1 As shown, the first type of pixel unit 31 includes a first sub-pixel unit 311, a second sub-pixel unit 312 and a third sub-pixel unit 313, which have different luminous colors, and the second type of pixel unit 32 includes a fourth sub-pixel unit 321, a fifth sub-pixel unit 322 and a sixth sub-pixel unit 323, which have different luminous colors. The luminous color of the first sub-pixel unit 311 is the same as that of the fourth sub-pixel unit 321, the luminous color of the second sub-pixel unit 312 is the same as that of the fifth sub-pixel unit 322, and the luminous color of the third sub-pixel unit 313 is the same as that of the sixth sub-pixel unit 323. By making the first type of pixel units include the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit with different luminous colors, and the second type of pixel units include the fourth sub-pixel unit, the fifth sub-pixel unit and the sixth sub-pixel unit with different luminous colors, and the luminous color of the first sub-pixel unit is the same as that of the fourth sub-pixel unit, the luminous color of the second sub-pixel unit is the same as that of the fifth sub-pixel unit, and the luminous color of the third sub-pixel unit is the same as that of the sixth sub-pixel unit, then both the first type of pixel units and the second type of pixel units can achieve color display, and color display can be achieved when the display panel is in normal display mode and anti-peeping display mode.

[0094] Specifically, the light-emitting colors of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit may be blue, green, and red, respectively, but the embodiments of the present application are not limited thereto. For example, the light-emitting colors of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit may be red, green, and blue, respectively, or red, blue and green, or green, red and blue, or green, blue and red.

[0095] Specifically, the sizes of the first sub-pixel unit and the fourth sub-pixel unit can be the same, specifically, the length of the first sub-pixel unit can be equal to the length of the fourth sub-pixel unit, and the width of the first sub-pixel unit can be equal to the width of the fourth sub-pixel unit; the sizes of the second sub-pixel unit and the fifth sub-pixel unit can be the same, specifically, the length of the second sub-pixel unit can be equal to the length of the fifth sub-pixel unit, and the width of the second sub-pixel unit can be equal to the width of the fifth sub-pixel unit; the sizes of the third sub-pixel unit and the sixth sub-pixel unit can be the same, specifically, the length of the third sub-pixel unit can be equal to the length of the sixth sub-pixel unit, and the width of the third sub-pixel unit can be equal to the width of the sixth sub-pixel unit.

[0096] Specifically, Figure 1 As shown, the area of ​​the first sub-pixel unit can be larger than the area of ​​the second sub-pixel unit, and the area of ​​the second sub-pixel unit can be larger than the area of ​​the third sub-pixel unit. Considering that the luminous efficiency of the blue light-emitting material is low, the luminous efficiency of the green light-emitting material is relatively low, and the luminous efficiency of the red light-emitting material is high, the area of ​​the first sub-pixel unit can be larger than the area of ​​the second sub-pixel unit, and the area of ​​the second sub-pixel unit can be larger than the area of ​​the third sub-pixel unit.

[0097] In some embodiments, Figures 1 to 5As shown, the first sub-pixel unit 311 includes a first light-emitting device 241, the second sub-pixel unit 312 includes a second light-emitting device 242, the third sub-pixel unit 313 includes a third light-emitting device 243, the fourth sub-pixel unit 321 includes a fourth light-emitting device 244, the fifth sub-pixel unit 322 includes a fifth light-emitting device 245, and the sixth sub-pixel unit 323 includes a sixth light-emitting device 246. The pixel driving circuit 120 includes a first pixel driving circuit 120a, a second pixel driving circuit 120b and a third pixel driving circuit 120c, the first pixel driving circuit 120a is electrically connected to the first light-emitting device 241 and the fourth light-emitting device 244, the second pixel driving circuit 120b is connected to the second light-emitting device 242 and the fifth light-emitting device 245, and the third pixel driving circuit 120c is connected to the third light-emitting device 243 and the sixth light-emitting device 246. By using a first pixel driving circuit to drive the first light-emitting device and the fourth light-emitting device, a second pixel driving circuit to drive the second light-emitting device and the fifth light-emitting device, and a third pixel driving circuit to drive the third light-emitting device and the sixth light-emitting device, different pixel units can be controlled to emit light through the pixel driving circuit, thereby achieving normal display and anti-peeping display.

[0098] Specifically, by driving two light-emitting devices with one pixel driving circuit, the space occupied by the pixel driving circuit can be reduced and the aperture ratio can be improved.

[0099] Specifically, the first type of light emitting device includes a first light emitting device, a second light emitting device and a third light emitting device, and the second type of light emitting device includes a fourth light emitting device, a fifth light emitting device and a sixth light emitting device. When the first type of light emitting device is the first light emitting device, the second type of light emitting device is the fourth light emitting device, when the first type of light emitting device is the second light emitting device, the second type of light emitting device is the fifth light emitting device, and when the first type of light emitting device is the third light emitting device, the third type of light emitting device is the sixth light emitting device.

[0100] Specifically, the circuit structures of the first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit may be the same. For example, the first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit may all adopt Figure 4 or Figure 5 The circuit only needs to replace the first type of light emitting device C1 and the second type of light emitting device C2 with specific light emitting devices. For example, the first type of light emitting device C1 and the second type of light emitting device C2 in the first pixel driving circuit can be replaced with specific first light emitting devices and fourth light emitting devices. However, the embodiments of the present application are not limited thereto. For example, the circuit structures of the first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit can be different. For example, the first pixel driving circuit can adopt Figure 4The circuit shown in FIG. 1 can be used as the second pixel driving circuit. Figure 5 The third pixel driving circuit can adopt Figure 4 or Figure 5 The circuit shown, but the embodiments of the present application are not limited thereto, and the first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit may also adopt other circuit combinations.

[0101] In some embodiments, Figure 1 As shown, the first sub-pixel unit 311 and the fourth sub-pixel unit 321 are alternately arranged in the same column, the second sub-pixel unit 312 and the fifth sub-pixel unit 322 are alternately arranged in the same row, the third sub-pixel unit 313 and the sixth sub-pixel unit 323 are alternately arranged in the same column, a column of the second sub-pixel units 312 and a column of the fifth sub-pixel units 322 are arranged correspondingly to a column of the third sub-pixel units 313, a row of the third sub-pixel units 313 and a row of the sixth sub-pixel units 323 are arranged between two adjacent rows of the second sub-pixel units 312, a column of the second sub-pixel units 312 and a column of the fifth sub-pixel units 322 are arranged between two adjacent columns of the first sub-pixel units 311, and the first sub-pixel units 311 are staggered between two adjacent columns. By alternately arranging the first sub-pixel unit and the fourth sub-pixel unit in the same column, the second sub-pixel unit and the fifth sub-pixel unit in the same row, and the third sub-pixel unit and the sixth sub-pixel unit in the same column, the first type of pixel unit and the second type of pixel unit are arranged in the same manner. When switching between the normal display mode and the anti-peeping mode, the display effect is similar or even the same, thereby avoiding affecting the viewing effect. Moreover, since the first sub-pixel unit and the fourth sub-pixel unit are relatively large, and the third sub-pixel unit and the sixth sub-pixel unit are relatively small, the second sub-pixel unit and the fifth sub-pixel unit can be arranged corresponding to a column of third sub-pixel units, a row of the third sub-pixel units and a row of the sixth sub-pixel units are arranged between two adjacent rows of second sub-pixel units, a column of the second sub-pixel units and a column of the fifth sub-pixel units are arranged between two adjacent columns of first sub-pixel units, and the first sub-pixel units in two adjacent columns are arranged in an alternating manner, thereby improving space utilization and improving the resolution of the display panel.

[0102] Specifically, the display process of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit can refer to the display process of the first type of light-emitting device, and the display process of the fourth sub-pixel unit, the fifth sub-pixel unit and the sixth sub-pixel unit can refer to the display process of the second type of light-emitting device.

[0103] Specifically, the above-mentioned embodiments are described by taking the example that the first type of pixel unit emits light when the display panel is in the normal display mode, and the second type of pixel unit emits light when the display panel is in the anti-peeping display mode, but the embodiments of the present application are not limited to this. For example, when the display panel is in the normal display mode, both the first type of pixel unit and the second type of pixel unit can be made to emit light. At this time, the timing of the display panel can be modified accordingly, so that when the display panel is in the normal display mode, the first light-emitting control signal line and the second light-emitting control signal line both output valid levels.

[0104] Specifically, the driving transistor, the switching transistor, the compensation transistor, the first initialization transistor, the second initialization transistor, the first light-emitting control transistor, the second light-emitting control transistor, the third light-emitting control transistor, the reset transistor and the fourth light-emitting control transistor can all be P-type transistors, but the embodiments of the present application are not limited to this. Each transistor can be an N-type transistor, or some transistors can be N-type transistors and some transistors can be P-type transistors, and the timing of each signal line can be modified accordingly.

[0105] Specifically, the material of the active layer includes silicon semiconductor, specifically low-temperature polysilicon, but the embodiments of the present application are not limited thereto. The material of the active layer may include metal oxide semiconductor, specifically indium gallium zinc oxide.

[0106] Specifically, the above embodiments provide a detailed description of the display panel from aspects of the pixel arrangement, film structure, circuit design, and driving timing of the display panel. It can be understood that when there is no conflict between the embodiments, the embodiments can be combined. For example, the pixel driving circuit also includes a third light-emitting control transistor and a reset transistor, an electrode of the third light-emitting control transistor and an electrode of the driving transistor are connected to the first node, the gate of the reset transistor is connected to the first scanning signal line, the first electrode of the reset transistor is connected to the first initialization signal line, and the second electrode of the reset transistor and the first electrode of the driving transistor are connected to the first node; the area of ​​the first sub-pixel unit can be greater than the area of ​​the second sub-pixel unit, and the area of ​​the second sub-pixel unit can be greater than the area of ​​the third sub-pixel unit.

[0107] At the same time, an embodiment of the present application provides a display device, which includes a display panel as described in any of the above embodiments.

[0108] Specifically, the display panel may be an organic light emitting diode display panel.

[0109] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0110] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0111] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0112] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display panel, characterized in that: The invention comprises pixel units and a pixel driving circuit arranged in an array, wherein the pixel units comprise a first type of pixel units and a second type of pixel units, the light emitting angle of the first type of pixel units is greater than the light emitting angle of the second type of pixel units, the first type of pixel units comprise a first type of light emitting device, the second type of pixel units comprise a second type of light emitting device, and the first type of light emitting device and the second type of light emitting device are connected to the same pixel driving circuit; The pixel driving circuit includes a driving transistor, a switching transistor, a first light-emitting control transistor, and a second light-emitting control transistor, one electrode of the driving transistor and one electrode of the switching transistor are connected to a first node, the other electrode of the driving transistor and one electrode of the first light-emitting control transistor and one electrode of the second light-emitting control transistor are electrically connected to a second node, the gate of the first light-emitting control transistor is connected to a first light-emitting control signal line, the gate of the second light-emitting control transistor is connected to a second light-emitting control signal line, the other electrode of the first light-emitting control transistor is connected to an anode of the first type of light-emitting device, and the other electrode of the second light-emitting control transistor is connected to an anode of the second type of light-emitting device; The display panel is configured such that when one of the first light emission control signal line and the second light emission control signal line outputs a valid level, the other of the first light emission control signal line and the second light emission control signal line outputs an invalid level.

2. The display panel according to claim 1, characterized in that: The pixel driving circuit also includes a third light-emitting control transistor and a reset transistor, an electrode of the third light-emitting control transistor and an electrode of the driving transistor are connected to the first node, the gate of the reset transistor is connected to the first scanning signal line, the first electrode of the reset transistor is connected to the first initialization signal line, and the second electrode of the reset transistor and the first electrode of the driving transistor are connected to the first node.

3. The display panel according to claim 1, characterized in that: The pixel driving circuit also includes a third light-emitting control transistor and a fourth light-emitting control transistor, an electrode of the third light-emitting control transistor and an electrode of the driving transistor are connected to the first node, a gate of the fourth light-emitting control transistor and a gate of the third light-emitting control transistor are connected to the same signal line, a first electrode of the fourth light-emitting control transistor and a second electrode of the driving transistor are connected to the second node, and a second electrode of the fourth light-emitting control transistor is connected to the first electrode of the first light-emitting control transistor and the first electrode of the second light-emitting control transistor.

4. The display panel according to claim 2 or 3, characterized in that: The gate of the switch transistor is connected to the second scan signal line, the first electrode of the switch transistor is connected to the data line, the second electrode of the switch transistor and the first electrode of the drive transistor are connected to the first node, the gate of the third light-emitting control transistor is connected to the third light-emitting control signal line, the first electrode of the third light-emitting control transistor is connected to the high-potential power line, the second electrode of the third light-emitting control transistor and the first electrode of the drive transistor are connected to the first node, the second electrode of the first light-emitting control transistor is connected to the anode of the first type of light-emitting device, and the second electrode of the second light-emitting control transistor is connected to the anode of the second type of light-emitting device, and the pixel driving circuit further includes: a compensation transistor, wherein a gate of the compensation transistor is connected to the second scanning signal line, a first electrode of the compensation transistor and the gate of the driving transistor are connected to a third node, and a second electrode of the compensation transistor and the second electrode of the driving transistor are connected to the second node; a first initialization transistor, wherein a gate of the first initialization transistor is connected to a reset signal line, a first electrode of the first initialization transistor is connected to a second initialization signal line, and a second electrode of the first initialization transistor and a gate of the driving transistor are connected to the third node; a second initialization transistor, wherein a gate of the second initialization transistor is connected to the reset signal line, a first electrode of the second initialization transistor is connected to a third initialization signal line, and a second electrode of the second initialization transistor is connected to the first electrode of the first emission control transistor and the first electrode of the second emission control transistor; A storage capacitor, wherein a first plate of the storage capacitor is connected to the high potential power line, and a second plate of the storage capacitor and a gate of the driving transistor are connected to the third node.

5. The display panel according to claim 4, characterized in that: The display panel is configured such that within one cycle, the reset signal line outputs a valid level, and when the reset signal line outputs a valid level, the first light-emitting control signal line or the second light-emitting control signal line outputs a valid level; Alternatively, the display panel is configured such that within one cycle, the reset signal line outputs two valid levels, when the reset signal line outputs a first valid level, the first light-emitting control signal line outputs a valid level, and the second light-emitting control signal line outputs an invalid level; when the reset signal line outputs a second valid level, the first light-emitting control signal line outputs an invalid level, and the second light-emitting control signal line outputs a valid level.

6. The display panel according to any one of claims 1 to 3, characterized in that: The display panel comprises: substrate; A driving circuit layer is arranged on one side of the substrate; A light-emitting functional layer is disposed on a side of the driving circuit layer away from the substrate, wherein the light-emitting functional layer comprises a pixel definition layer, and the pixel definition layer comprises a pixel opening; An encapsulation layer is arranged on a side of the light-emitting functional layer away from the driving circuit layer; A light blocking layer, arranged on a side of the encapsulation layer away from the light-emitting functional layer; The light blocking layer is arranged in the arrangement area of ​​the second type of pixel unit, and the light blocking layer is arranged corresponding to the pixel definition layer.

7. The display panel according to any one of claims 1 to 3, characterized in that: The first type of pixel unit includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, which have different luminous colors; the second type of pixel unit includes a fourth sub-pixel unit, a fifth sub-pixel unit and a sixth sub-pixel unit, which have different luminous colors; the first sub-pixel unit has the same luminous color as the fourth sub-pixel unit, the second sub-pixel unit has the same luminous color as the fifth sub-pixel unit, and the third sub-pixel unit has the same luminous color as the sixth sub-pixel unit.

8. The display panel according to claim 7, characterized in that: The first sub-pixel unit includes a first light-emitting device, the second sub-pixel unit includes a second light-emitting device, the third sub-pixel unit includes a third light-emitting device, the fourth sub-pixel unit includes a fourth light-emitting device, the fifth sub-pixel unit includes a fifth light-emitting device, and the sixth sub-pixel unit includes a sixth light-emitting device. The pixel driving circuit includes a first pixel driving circuit, a second pixel driving circuit, and a third pixel driving circuit. The first pixel driving circuit is electrically connected to the first light-emitting device and the fourth light-emitting device, the second pixel driving circuit is connected to the second light-emitting device and the fifth light-emitting device, and the third pixel driving circuit is connected to the third light-emitting device and the sixth light-emitting device.

9. The display panel according to claim 7, characterized in that: The first sub-pixel unit and the fourth sub-pixel unit are alternately arranged in the same column, the second sub-pixel unit and the fifth sub-pixel unit are alternately arranged in the same row, the third sub-pixel unit and the sixth sub-pixel unit are alternately arranged in the same column, one column of the second sub-pixel units and one column of the fifth sub-pixel units are arranged correspondingly to one column of the third sub-pixel units, one row of the third sub-pixel units and one row of the sixth sub-pixel units are arranged between two adjacent rows of the second sub-pixel units, one column of the second sub-pixel units and one column of the fifth sub-pixel units are arranged between two adjacent columns of the first sub-pixel units, and the first pixel units in two adjacent columns are staggered.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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