Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a plurality of pixel driving circuits which are arranged in a first array, wherein the plurality of pixel driving circuits are arranged along a first direction; the pixel driving circuit arrangement comprises a plurality of pixel driving circuits arranged along a second direction; the first pixel driving circuit arrangement comprises a first pixel driving circuit; the second pixel driving circuit arrangement comprises a second pixel driving circuit and a third pixel driving circuit; the driving current of the first pixel driving circuit is smaller than that of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than that of the second pixel driving circuit; the first power supply signal line is connected with the first pixel driving circuit; the second power supply signal line is connected with the second pixel driving circuit; and the third pixel driving circuit is connected with the first power supply signal line or the second power supply signal line. According to the technical scheme of the embodiment of the invention, the power consumption of the pixel driving circuit in the display panel is reduced.

Description

Technical Field

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

[0002] With the development of information technology, since the display device is a connection medium between the user and information, the importance of the display device has increased. Therefore, display devices such as liquid crystal display devices and organic light-emitting display devices are increasingly used.

[0003] The display panel of the prior art has the problem of relatively high power consumption. Summary of the Invention

[0004] The present invention provides a display panel and a display device to reduce the power consumption of the pixel driving circuit in the display panel.

[0005] According to an aspect of the present invention, there is provided a display panel, including: A substrate; A plurality of pixel driving circuits are arranged in a first array on one side of the substrate; the first array arrangement includes a plurality of pixel driving circuit arrangements arranged along a first direction; The pixel driving circuit arrangement includes a plurality of pixel driving circuits arranged along a second direction, and the first direction and the second direction are cross-set; the pixel driving circuit arrangement includes a pixel driving circuit column or a pixel driving circuit row; the pixel driving circuit arrangement includes a first pixel driving circuit arrangement and a second pixel driving circuit arrangement alternately arranged along the first direction; the first pixel driving circuit arrangement includes a first pixel driving circuit; the second pixel driving circuit arrangement includes a second pixel driving circuit and a third pixel driving circuit; the driving current of the first pixel driving circuit is less than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than the driving current of the second pixel driving circuit; the first pixel driving circuit, the second pixel driving circuit, and the third pixel driving circuit are respectively used to drive light-emitting units of different light-emitting colors; A plurality of power signal lines, including a first power signal line and a second power signal line; the first power signal line is connected to the first pixel driving circuit; the second power signal line is connected to the second pixel driving circuit; the third pixel driving circuit is connected to the first power signal line or the second power signal line, and the first power voltage provided by the first power signal line is less than the second power voltage provided by the second power signal line.

[0006] In this technical solution, the first power supply signal line is connected to the first pixel driving circuit; the second power supply signal line is connected to the second pixel driving circuit and the third pixel driving circuit, and the first power supply voltage provided by the first power supply signal line is less than the second power supply voltage provided by the second power supply signal line. Since the driving current of the first pixel driving circuit is less than that of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than that of the second pixel driving circuit, therefore, the power supply voltage of the first pixel driving circuit is separately set from the power supply voltages of the second pixel driving circuit and the third pixel driving circuit. Combining the characteristic that the driving current of the first pixel driving circuit is the smallest, the first power supply voltage provided by the first power supply signal line is set to be less than the second power supply voltage provided by the second power supply signal line, and there is no redundant setting for the power supply voltage connected to the first pixel driving circuit, thereby reducing the power consumption of the display panel and also improving the problem of uneven brightness caused by a large voltage drop between the power supply signal line and the second pixel driving circuit. Alternatively, the first power supply signal line can also be connected to the first pixel driving circuit and the third pixel driving circuit; the second power supply signal line is connected to the second pixel driving circuit; the first power supply voltage provided by the first power supply signal line is less than the second power supply voltage provided by the second power supply signal line. Since the driving current of the first pixel driving circuit is less than that of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than that of the second pixel driving circuit, therefore, the power supplies of the first pixel driving circuit and the third pixel driving circuit are separately set from the power supply voltage of the second pixel driving circuit. Combining the characteristic that the driving currents of the first pixel driving circuit and the third pixel driving circuit are both less than that of the second pixel driving circuit, the first power supply voltage provided by the first power supply signal line is set to be less than the second power supply voltage provided by the second power supply signal line, and there is no redundant setting for the power supply voltages connected to the first pixel driving circuit and the second pixel driving circuit, thereby reducing the power consumption of the display panel and also improving the problem of uneven brightness caused by a large voltage drop between the power supply signal line and the second pixel driving circuit. Among them, the sum of the driving currents of the first pixel driving circuit and the third pixel driving circuit is not much different from the driving current of the second pixel driving circuit. By adopting this solution, a full-white screen can be achieved, making the voltage drops between the power supply signal line and the first pixel driving circuit and the third pixel driving circuit close to the voltage drop between the power supply signal line and the second pixel driving circuit, so it is more helpful to improve the brightness uniformity and chromaticity uniformity.

[0007] Optionally, the first power supply signal line includes a first horizontal power supply signal line and a first vertical power supply signal line that are electrically connected in different layers. The first horizontal power supply signal line and the first vertical power supply signal line are cross - arranged and connected through vias in each pixel driving circuit; The second power supply signal line includes a second horizontal power supply signal line and a second vertical power supply signal line which are electrically connected in different layers. The second horizontal power supply signal line and the second vertical power supply signal line are arranged crosswise and are connected through vias in each pixel driving circuit.

[0008] In this technical solution, the first horizontal power supply signal line and the first vertical power supply signal line are arranged in different film layers and are electrically connected through vias. The second horizontal power supply signal line and the second vertical power supply signal line are arranged in different film layers and are electrically connected through vias. Thus, multiple first horizontal power supply signal lines and first vertical power supply signal lines form a conductive grid, and multiple second horizontal power supply signal lines and second vertical power supply signal lines form a conductive grid, reducing the impedance of the first power supply signal line and the second power supply signal line.

[0009] Preferably, the first horizontal power supply signal line and the second horizontal power supply signal line are arranged in the same layer; and / or, the first vertical power supply signal line and the second vertical power supply signal line are arranged in the same layer.

[0010] In this technical solution, the preparation of the second horizontal power supply signal line is completed while preparing the first horizontal power supply signal line, simplifying the preparation process and reducing the preparation cost. And / or, the preparation of the second vertical power supply signal line is completed while preparing the first vertical power supply signal line, simplifying the preparation process and reducing the preparation cost.

[0011] Preferably, the first horizontal power supply signal line and the second horizontal power supply signal line are in the same layer as one plate of the capacitive structure in the pixel driving circuit.

[0012] In this technical solution, the pixel driving circuit includes multiple thin film transistors and a storage capacitor. The storage capacitor serves as the capacitive structure. In the above solution, the preparation of the first horizontal power supply signal line and the second horizontal power supply signal line is completed while preparing one conductive electrode plate of the storage capacitor in the pixel driving circuit, simplifying the preparation process and reducing the preparation cost. Preferably, the other plate of the capacitive structure in the pixel driving circuit and the gate of the thin film transistor in the pixel driving circuit are in the same layer, further simplifying the preparation process and reducing the preparation cost.

[0013] Optionally, the anode signal connection end of the pixel driving circuit is electrically connected to the anode of the light emitting unit through a conductive line; The conductive line and the anode of the light emitting unit are in the same layer or different layers.

[0014] In this technical solution, the anode signal connection terminal of the pixel driving circuit is connected through a conductive line on the same layer as the anode of the light-emitting unit. While preparing the anode of the light-emitting unit, the preparation of the conductive line is completed, simplifying the preparation process and reducing the preparation cost. When the conductive line and the anode of the light-emitting unit are on different layers, the conductive line can be a newly added conductive film layer. The newly added conductive film layer can be a metal film layer or indium tin oxide.

[0015] Preferably, the conductive line includes a redundant impedance compensation circuit, and the redundant impedance compensation circuit is located between the anode of the light-emitting unit and the anode signal connection terminal of the corresponding pixel driving circuit, and is used to compensate for the impedance difference existing between the light-emitting units of the same color and the anode signal connection terminal of the corresponding pixel driving circuit.

[0016] This technical solution can eliminate the impedance difference of the conductive line between the light-emitting units of the same light-emitting color and the corresponding pixel driving circuit, thereby improving the uniformity of the light-emitting brightness of the light-emitting units of the same light-emitting color, and thus improving the display uniformity of the display panel.

[0017] Optionally, the display panel further includes a plurality of data lines, extending along the second direction and arranged along the first direction; the data line connected to the first pixel driving circuit is used to provide a first data voltage, and the data line connected to the second pixel driving circuit is used to provide a second data voltage; When the display panel is in the highest gray scale state, the difference between the first data voltage and the second data voltage is greater than or equal to 0V and less than or equal to 0.2V.

[0018] In this technical solution, when the display panel is in the highest gray scale state, the difference between the first data voltage and the second data voltage is greater than or equal to 0V and less than or equal to 0.2V, which can avoid the increase in power consumption caused by the data voltage signal jump of the pixel driving circuit.

[0019] Preferably, the second pixel driving circuit and the third pixel driving circuit arranged in the same pixel driving circuit share one data line.

[0020] This technical solution reduces the number of data lines and reduces the preparation cost of the display panel.

[0021] Optionally, the aspect ratio of the thin film transistor in the first pixel driving circuit is smaller than the aspect ratio of the thin film transistor in the second pixel driving circuit; and / or, the aspect ratio of the thin film transistor in the first pixel driving circuit is smaller than the aspect ratio of the thin film transistor in the third pixel driving circuit.

[0022] In this technical solution, since the driving current of the first pixel driving circuit is less than that of the second pixel driving circuit, the aspect ratio of the thin-film transistor in the first pixel driving circuit can be set to be less than that of the thin-film transistor in the second pixel driving circuit to reduce the size of the first pixel driving circuit, thereby reducing the manufacturing cost of the display panel. Since the driving current of the first pixel driving circuit is less than that of the third pixel driving circuit, the aspect ratio of the thin-film transistor in the first pixel driving circuit can be set to be less than that of the thin-film transistor in the third pixel driving circuit to reduce the size of the first pixel driving circuit, thereby reducing the manufacturing cost of the display panel.

[0023] Optionally, the multiple light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; The first light-emitting unit is electrically connected to the first pixel driving circuit, the second light-emitting unit is electrically connected to the second pixel driving circuit, and the third light-emitting unit is electrically connected to the third pixel driving circuit; The emission wavelength of the first light-emitting unit is greater than that of the second light-emitting unit, and the emission wavelength of the third light-emitting unit is greater than that of the first light-emitting unit.

[0024] In this technical solution, the first light-emitting unit is electrically connected to the first pixel driving circuit, the second light-emitting unit is electrically connected to the second pixel driving circuit, and the third light-emitting unit is electrically connected to the third pixel driving circuit, so as to enable the first pixel driving circuit to drive the first light-emitting unit to emit light, the second pixel driving circuit to drive the second light-emitting unit to emit light, and the third pixel driving circuit to drive the third light-emitting unit to emit light.

[0025] Preferably, the first light-emitting unit emits green light, the second light-emitting unit emits blue light, and the third light-emitting unit emits red light; In this technical solution, the first pixel driving circuit drives the first light-emitting unit to emit green light, the second pixel driving circuit drives the second light-emitting unit to emit blue light, and the third pixel driving circuit drives the third light-emitting unit to emit red light.

[0026] Preferably, the multiple light-emitting units are arranged in a second array. In the second array arrangement, the first column arrangement is a repeated arrangement of the third light-emitting unit, the second light-emitting unit, the third light-emitting unit, and the second light-emitting unit; In the second array arrangement, the second column arrangement is a repeated arrangement of the first light-emitting unit; In the second array arrangement, the third column arrangement is a repeated arrangement of the second light-emitting unit, the third light-emitting unit, the second light-emitting unit, and the third light-emitting unit; the second column arrangement is located between the first column arrangement and the third column arrangement; The first pixel driving circuit is arranged in a first row of pixel driving circuits, and the second pixel driving circuit is arranged in a second row of pixel driving circuits; In the first array arrangement, the first row is the first row of pixel driving circuits; In the first array arrangement, the second row is the second row of pixel driving circuits; The first array arrangement includes a first column of pixel driving circuits and a second column of pixel driving circuits alternately arranged along the second direction; the first column of pixel driving circuits includes the first pixel driving circuit and the third pixel driving circuit alternately arranged along the first direction; the second column of pixel driving circuits includes the first pixel driving circuit and the second pixel driving circuit alternately arranged along the first direction; In the first array arrangement, the first column is the first column of pixel driving circuits.

[0027] This technical solution gives the position arrangement of pixel driving circuits in the first array arrangement and the position arrangement of light-emitting units in the second array arrangement.

[0028] Optionally, in the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the first row and the fourth column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the second row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

[0029] This technical solution provides the connection manner between the first pixel driving circuit and the first light-emitting unit, the connection manner between the second pixel driving circuit and the second light-emitting unit, and the connection manner between the third pixel driving circuit and the third light-emitting unit.

[0030] Optionally, when the light-emitting units are arranged in a second array and further include an additional column arrangement, the additional column arrangement is located on the side of the first column arrangement away from the second column arrangement; The additional column arrangement is a repeated arrangement of the first light-emitting units; In the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the newly added column of the second row in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the first row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

[0031] This technical solution provides the connection manner between the first pixel driving circuit and the first light-emitting unit, the connection manner between the second pixel driving circuit and the second light-emitting unit, and the connection manner between the third pixel driving circuit and the third light-emitting unit when the light-emitting units are arranged in a second array and further include an additional column arrangement.

[0032] Optionally, when the light-emitting units are arranged in a second array, it further includes an additional column arrangement, and the additional column arrangement is located on the side of the first column arrangement away from the second column arrangement; The additional column arrangement is a repeated arrangement of the first light-emitting units; In the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the newly added column in the first row in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the second row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

[0033] This technical solution provides the connection manners between the first pixel driving circuit and the first light-emitting unit, the second pixel driving circuit and the second light-emitting unit, and the third pixel driving circuit and the third light-emitting unit when the light-emitting units are arranged in a second array and further include an additional column arrangement.

[0034] According to another aspect of the present invention, a display device is provided, including the display panel according to any of the embodiments of the present invention.

[0035] This display device also has the beneficial effects of the display panel described in the above embodiments, which will not be elaborated here.

[0036] The display panel and the display device provided by the embodiments of the present invention connect a first power signal line to a first pixel driving circuit; a second power signal line is connected to a second pixel driving circuit and a third pixel driving circuit, and a first power voltage provided by the first power signal line is less than a second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is less than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than the driving current of the second pixel driving circuit, therefore, the power supply voltage of the first pixel driving circuit is separately set from the power supply voltages of the second pixel driving circuit and the third pixel driving circuit. Combining the characteristic that the driving current of the first pixel driving circuit is the smallest, the first power voltage provided by the first power signal line is set to be less than the second power voltage provided by the second power signal line, and there is no redundant setting for the power supply voltage connected to the first pixel driving circuit, thereby reducing the power consumption of the display panel, and it can also improve the problem of uneven brightness caused by a large voltage drop between the power signal line and the second pixel driving circuit. Or, the first power signal line can also be connected to the first pixel driving circuit and the third pixel driving circuit; the second power signal line is connected to the second pixel driving circuit; the first power voltage provided by the first power signal line is less than the second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is less than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than the driving current of the second pixel driving circuit, therefore, the power supplies of the first pixel driving circuit and the third pixel driving circuit are separately set from the power supply voltage of the second pixel driving circuit. Combining the characteristics that the driving currents of both the first pixel driving circuit and the third pixel driving circuit are less than the driving current of the second pixel driving circuit, the first power voltage provided by the first power signal line is set to be less than the second power voltage provided by the second power signal line, and there is no redundant setting for the power supply voltages connected to the first pixel driving circuit and the second pixel driving circuit, thereby reducing the power consumption of the display panel, and it can also improve the problem of uneven brightness caused by a large voltage drop between the power signal line and the second pixel driving circuit. Among them, the sum of the driving currents of the first pixel driving circuit and the third pixel driving circuit is not much different from the driving current of the second pixel driving circuit. By adopting this solution, a full-white screen can be realized, making the voltage drops between the power signal line and the first pixel driving circuit and the third pixel driving circuit close to the voltage drop between the power signal line and the second pixel driving circuit, so it is more helpful to improve the brightness uniformity and chromaticity uniformity.

[0037] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0039] Figure 1 is a top - view structural schematic diagram of a substrate and a pixel driving circuit in a display panel provided by an embodiment of the present invention; Figure 2 is a top - view structural schematic diagram of a substrate and a pixel driving circuit in another display panel provided by an embodiment of the present invention; Figure 3 is a top - view diagram of a first array arrangement and a second array arrangement provided by an embodiment of the present invention; Figure 4 is a top - view diagram of another first array arrangement and a second array arrangement provided by an embodiment of the present invention; Figure 5 is a top - view diagram of yet another first array arrangement and a second array arrangement provided by an embodiment of the present invention; Figure 6 is a structural schematic diagram of a display device provided by an embodiment of the present invention. Detailed Embodiments

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above - mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0042] In a display panel, a light-emitting unit includes a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit. In an existing display panel, pixel driving circuits corresponding to light-emitting units of different light-emitting colors are connected to the same power supply voltage. Since the driving current required for the light-emitting material of the blue light-emitting unit is greater than that required for the light-emitting material of the green light-emitting unit, in order to meet the large driving current required for the light-emitting material of the blue light-emitting unit, a relatively large difference needs to be maintained between the data voltage and the power supply voltage connected to its corresponding pixel driving circuit. Therefore, the above technical solution results in a redundant setting of the power supply voltage connected to the pixel driving circuit corresponding to the green light-emitting unit, thereby causing a relatively high power consumption of the display panel.

[0043] To solve the above problems, the embodiments of the present invention provide the following technical solutions: As Figure 1 and Figure 2 shown, Figure 1 is a top-view structural schematic diagram of a substrate and a pixel driving circuit in a display panel provided by an embodiment of the present invention. Figure 2 is another top-view structural schematic diagram of a substrate and a pixel driving circuit in a display panel provided by an embodiment of the present invention. The display panel includes: a substrate 100; a plurality of pixel driving circuits 200 are arranged in a first array and are located on one side of the substrate 100; the first array arrangement includes a plurality of pixel driving circuit arrangements 300 arranged along a first direction Y; the pixel driving circuit arrangement 300 includes a plurality of pixel driving circuits 200 arranged along a second direction X, and the first direction Y and the second direction X are cross-set; wherein, the first direction Y and the second direction X can be perpendicular or not perpendicular. The pixel driving circuit arrangement 300 includes a pixel driving circuit column or a pixel driving circuit row; the pixel driving circuit arrangement 300 includes a first pixel driving circuit arrangement 310 and a second pixel driving circuit arrangement 320 alternately arranged along the first direction Y; the first pixel driving circuit arrangement 310 includes a first pixel driving circuit 210; the second pixel driving circuit arrangement 320 includes a second pixel driving circuit 220 and a third pixel driving circuit 230; the driving current of the first pixel driving circuit 210 is less than that of the third pixel driving circuit 230, and the driving current of the third pixel driving circuit 230 is less than that of the second pixel driving circuit 220; the first pixel driving circuit 210, the second pixel driving circuit 220, and the third pixel driving circuit 230 are respectively used to drive light-emitting units of different light-emitting colors; a plurality of power supply signal lines 400, including a first power supply signal line 410 and a second power supply signal line 420; the first power supply signal line 410 is connected to the first pixel driving circuit 210; the second power supply signal line 420 is connected to the second pixel driving circuit 220; As Figure 2 shown, the third pixel driving circuit 230 is connected to the first power supply signal line 410; or, as Figure 1As shown, the third pixel driving circuit 230 is connected to the second power supply signal line 420, and the first power supply voltage VDD1 provided by the first power supply signal line 410 is less than the second power supply voltage VDD2 provided by the second power supply signal line 420.

[0044] In an embodiment of the present invention, the driving current of the first pixel driving circuit 210 is less than the driving current of the third pixel driving circuit 230, and the driving current of the third pixel driving circuit 230 is less than the driving current of the second pixel driving circuit 220. Exemplarily, as Figure 1 and Figure 2 shown, the first pixel driving circuit 210 is used to drive the green light-emitting unit to emit light, the second pixel driving circuit 220 is used to drive the blue light-emitting unit to emit light, and the third pixel driving circuit 230 is used to drive the red light-emitting unit to emit light.

[0045] The technical solution provided by the embodiment of the present invention, as Figure 1 shown, connects the first power supply signal line 410 to the first pixel driving circuit 210; the second power supply signal line 420 is connected to the second pixel driving circuit 220 and the third pixel driving circuit 230, and the first power supply voltage VDD1 provided by the first power supply signal line 410 is less than the second power supply voltage VDD2 provided by the second power supply signal line 420. Since the driving current of the first pixel driving circuit 210 is less than the driving current of the third pixel driving circuit 230, and the driving current of the third pixel driving circuit 230 is less than the driving current of the second pixel driving circuit 220, therefore, the power supply voltage of the first pixel driving circuit 210 is separately set from the power supply voltages of the second pixel driving circuit 220 and the third pixel driving circuit 230. Combining the characteristic that the driving current of the first pixel driving circuit 210 is the smallest, the first power supply voltage VDD1 provided by the first power supply signal line 410 is set to be less than the second power supply voltage VDD2 provided by the second power supply signal line 420. There is no redundant setting for the power supply voltage connected to the first pixel driving circuit 210, thereby reducing the power consumption of the display panel and also improving the problem of uneven brightness caused by a large voltage drop between the power supply signal line and the second pixel driving circuit 220. Or, as Figure 2As shown, the first power supply signal line 410 can also be connected to the first pixel driving circuit 210 and the third pixel driving circuit 230; the second power supply signal line 420 is connected to the second pixel driving circuit 220; the first power supply voltage VDD1 provided by the first power supply signal line 410 is less than the second power supply voltage VDD2 provided by the second power supply signal line 420. Since the driving current of the first pixel driving circuit 210 is less than that of the third pixel driving circuit 230, and the driving current of the third pixel driving circuit 230 is less than that of the second pixel driving circuit 220, therefore, the power supplies of the first pixel driving circuit 210 and the third pixel driving circuit 230 are separately set from the power supply voltage of the second pixel driving circuit 220. Combining the feature that the driving currents of both the first pixel driving circuit 210 and the third pixel driving circuit 230 are less than that of the second pixel driving circuit 220, the first power supply voltage VDD1 provided by the first power supply signal line 410 is set to be less than the second power supply voltage VDD2 provided by the second power supply signal line 420. There is no redundant setting for the power supply voltages connected to the first pixel driving circuit 210 and the second pixel driving circuit 220, thereby reducing the power consumption of the display panel and also improving the problem of uneven brightness caused by a large voltage drop between the power supply signal line and the second pixel driving circuit 220. Among them, the sum of the driving currents of the first pixel driving circuit 210 and the third pixel driving circuit 230 is not much different from the driving current of the second pixel driving circuit 220. By adopting this solution, a full-white screen can be achieved, making the voltage drops between the power supply signal line and the first pixel driving circuit 210 and the third pixel driving circuit 230 close to the voltage drop between the power supply signal line and the second pixel driving circuit 220. Therefore, it is more helpful to improve the brightness uniformity and chromaticity uniformity.

[0046] Optionally, on the basis of the above technical solution, as Figure 1 and Figure 2 shown, the first power supply signal line 410 includes a first horizontal power supply signal line 411 and a first vertical power supply signal line 412 which are electrically connected in different layers. The first horizontal power supply signal line 411 and the first vertical power supply signal line 412 are arranged in a cross pattern and are connected through vias in each pixel driving circuit 200; the second power supply signal line 420 includes a second horizontal power supply signal line 421 and a second vertical power supply signal line 422 which are electrically connected in different layers. The second horizontal power supply signal line 421 and the second vertical power supply signal line 422 are arranged in a cross pattern and are connected through vias in each pixel driving circuit 200.

[0047] Specifically, the first horizontal power supply signal line 411 and the first vertical power supply signal line 412 are disposed in different film layers and are electrically connected through vias. The second horizontal power supply signal line 421 and the second vertical power supply signal line 422 are disposed in different film layers and are electrically connected through vias. Thus, multiple first horizontal power supply signal lines 411 and first vertical power supply signal lines 412 form a conductive grid, and multiple second horizontal power supply signal lines 421 and second vertical power supply signal lines 422 form a conductive grid, reducing the impedance of the first power supply signal line 410 and the second power supply signal line 420.

[0048] Preferably, as Figure 1 and Figure 2 shown, the first horizontal power supply signal line 411 and the second horizontal power supply signal line 421 are disposed in the same layer; and / or, the first vertical power supply signal line 412 and the second vertical power supply signal line 422 are disposed in the same layer.

[0049] Specifically, the preparation of the second horizontal power supply signal line 421 is completed while preparing the first horizontal power supply signal line 411, simplifying the preparation process and reducing the preparation cost. And / or, the preparation of the second vertical power supply signal line 422 is completed while preparing the first vertical power supply signal line 412, simplifying the preparation process and reducing the preparation cost.

[0050] Preferably, as Figure 1 and Figure 2 shown, the first horizontal power supply signal line 411 and the second horizontal power supply signal line 421 are in the same layer as one plate of the capacitive structure in the pixel driving circuit 200.

[0051] Specifically, the pixel driving circuit 200 includes multiple thin film transistors and storage capacitors. The storage capacitor serves as the capacitive structure. In the above solution, the preparation of the first horizontal power supply signal line 411 and the second horizontal power supply signal line 421 is completed while preparing one conductive electrode plate of the storage capacitor in the pixel driving circuit 200, simplifying the preparation process and reducing the preparation cost. Preferably, the other plate of the capacitive structure in the pixel driving circuit 200 and the gate of the thin film transistor in the pixel driving circuit 200 are in the same layer, further simplifying the preparation process and reducing the preparation cost.

[0052] Preferably, the first vertical power supply signal line 412 and the second vertical power supply signal line 422 generally adopt a metal thin film layer with a relatively small sheet resistance to reduce the resistance of the power supply signal line, thereby reducing the power consumption of the display panel.

[0053] Optionally, on the basis of the above technical solution, as Figures 3 - 5 shown, Figure 3 is a top view of a first array arrangement and a second array arrangement provided by an embodiment of the present invention. Figure 4It is a top view of another first array arrangement and second array arrangement provided by an embodiment of the present invention. Figure 5 It is a top view of yet another first array arrangement and second array arrangement provided by an embodiment of the present invention. The anode signal connection terminal of the pixel driving circuit 200 is electrically connected to the anode of the light-emitting unit 600 through a conductive line 700; the conductive line 700 and the anode of the light-emitting unit 600 are located on the same layer or different layers.

[0054] Specifically, the anode signal connection terminal of the pixel driving circuit 200 is connected through a conductive line on the same layer as the anode of the light-emitting unit 600. While preparing the anode of the light-emitting unit 600, the preparation of the conductive line 700 is completed, simplifying the preparation process and reducing the preparation cost. When the conductive line 700 and the anode of the light-emitting unit 600 are on different layers, the conductive line 700 can be a newly added conductive film layer. The newly added conductive film layer can be a metal film layer or indium tin oxide (ITO). The anode signal connection terminal of the first pixel driving circuit 210 is electrically connected to the anode of the first light-emitting unit 610 through a first conductive line 710. The anode signal connection terminal of the second pixel driving circuit 220 is electrically connected to the anode of the second light-emitting unit 620 through a second conductive line 720. The anode signal connection terminal of the third pixel driving circuit 230 is electrically connected to the anode of the third light-emitting unit 630 through a third conductive line 730.

[0055] Preferably, as Figures 3 - 5 shown, the conductive line 700 includes a redundant impedance compensation circuit. The redundant impedance compensation circuit is located between the anode of the light-emitting unit 600 and the corresponding anode signal connection terminal of the pixel driving circuit 200, and is used to compensate for the impedance difference between the light-emitting unit 600 of the same color and the corresponding anode signal connection terminal of the pixel driving circuit 200. It can eliminate the impedance difference of the conductive line between the light-emitting unit 600 of the same emission color and the corresponding pixel driving circuit 200, thereby improving the uniformity of the emission brightness of the light-emitting unit 600 of the same emission color, and thus improving the display uniformity of the display panel.

[0056] Optionally, on the basis of the above technical solution, as Figure 1 and Figure 2 shown, the display panel further includes a plurality of data lines 500, which extend along the second direction X and are arranged along the first direction Y; the data line 500 connected to the first pixel driving circuit 210 is used to provide a first data voltage Vdata1, and the data line 500 connected to the second pixel driving circuit 220 is used to provide a second data voltage Vdata2; when the display panel is in the highest gray scale state, the difference between the first data voltage Vdata1 and the second data voltage Vdata2 is greater than or equal to 0V and less than or equal to 0.2V.

[0057] Specifically, when the display panel is in the highest gray scale state, the difference between the first data voltage Vdata1 and the second data voltage Vdata2 is greater than or equal to 0V and less than or equal to 0.2V, which can avoid the increase in power consumption caused by the data voltage signal jump of the pixel driving circuit.

[0058] Preferably, the second pixel driving circuit 220 and the third pixel driving circuit 230 located in the same pixel driving circuit arrangement 300 share a data line 500, reducing the number of data lines 500 and lowering the manufacturing cost of the display panel.

[0059] Optionally, on the basis of the above technical solution, as Figure 1 and Figure 2 shown, the aspect ratio of the thin film transistor in the first pixel driving circuit 210 is less than the aspect ratio of the thin film transistor in the second pixel driving circuit 220; and / or, the aspect ratio of the thin film transistor in the first pixel driving circuit 210 is less than the aspect ratio of the thin film transistor in the third pixel driving circuit 230.

[0060] Specifically, since the driving current of the first pixel driving circuit 210 is less than the driving current of the second pixel driving circuit 220, the aspect ratio of the thin film transistor in the first pixel driving circuit 210 can be set to be less than the aspect ratio of the thin film transistor in the second pixel driving circuit 220 to reduce the size of the first pixel driving circuit 210, thereby reducing the manufacturing cost of the display panel. Since the driving current of the first pixel driving circuit 210 is less than the driving current of the third pixel driving circuit 230, the aspect ratio of the thin film transistor in the first pixel driving circuit 210 can be set to be less than the aspect ratio of the thin film transistor in the third pixel driving circuit 230 to reduce the size of the first pixel driving circuit 210, thereby reducing the manufacturing cost of the display panel.

[0061] Optionally, on the basis of the above technical solution, as Figures 3 - 5 shown, the plurality of light emitting units 600 include a first light emitting unit 610, a second light emitting unit 620 and a third light emitting unit 630; the first light emitting unit 610 is electrically connected to the first pixel driving circuit 210, the second light emitting unit 620 is electrically connected to the second pixel driving circuit 220, and the third light emitting unit 630 is electrically connected to the third pixel driving circuit 230; the emission wavelength of the first light emitting unit 610 is greater than the emission wavelength of the second light emitting unit 620, and the emission wavelength of the third light emitting unit 630 is greater than the emission wavelength of the first light emitting unit 610.

[0062] Specifically, the first light-emitting unit 610 is electrically connected to the first pixel driving circuit 210, the second light-emitting unit 620 is electrically connected to the second pixel driving circuit 220, and the third light-emitting unit 630 is electrically connected to the third pixel driving circuit 230, so as to enable the first pixel driving circuit 210 to drive the first light-emitting unit 610 to emit light, the second pixel driving circuit 220 to drive the second light-emitting unit 620 to emit light, and the third pixel driving circuit 230 to drive the third light-emitting unit 630 to emit light.

[0063] Preferably, as Figures 3 - 5 shown, the first light-emitting unit 610 emits green light, the second light-emitting unit 620 emits blue light, and the third light-emitting unit 630 emits red light.

[0064] Specifically, the first pixel driving circuit 210 drives the first light-emitting unit 610 to emit green light, the second pixel driving circuit 220 drives the second light-emitting unit 620 to emit blue light, and the third pixel driving circuit 230 drives the third light-emitting unit 630 to emit red light.

[0065] Preferably, as Figures 3 - 5 shown, the plurality of light-emitting units 600 are arranged in a second array. In the second array arrangement, the first column arrangement 810 is a repeated arrangement of the third light-emitting unit 630, the second light-emitting unit 620, the third light-emitting unit 630, and the second light-emitting unit 620; in the second array arrangement, the second column arrangement 820 is a repeated arrangement of the first light-emitting unit 610; in the second array arrangement, the third column arrangement 830 is a repeated arrangement of the second light-emitting unit 620, the third light-emitting unit 630, the second light-emitting unit 620, and the third light-emitting unit 630; the second column arrangement 820 is located between the first column arrangement 810 and the third column arrangement 830.

[0066] The first pixel driving circuit arrangement 310 is the row of the first pixel driving circuit, and the second pixel driving circuit arrangement 320 is the row of the second pixel driving circuit; in the first array arrangement, the first row is the row of the first pixel driving circuit; in the first array arrangement, the second row is the row of the second pixel driving circuit; the first array arrangement includes the first pixel driving circuit columns and the second pixel driving circuit columns arranged alternately along the second direction X; the first pixel driving circuit columns include the first pixel driving circuit 210 and the third pixel driving circuit 230 arranged alternately along the first direction Y; the second pixel driving circuit columns include the first pixel driving circuit 210 and the second pixel driving circuit 220 arranged alternately along the first direction Y; the first column in the first array arrangement is the first pixel driving circuit column.

[0067] The above technical solution gives the position arrangement of the pixel driving circuit 200 in the first array arrangement and the position arrangement of the light-emitting unit 600 in the second array arrangement.

[0068] Optionally, based on the above technical solution, as Figure 3 shown, in the black frame T01, it is the first connection type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the first column is electrically connected to the first light-emitting unit 610 located in the first row and the second column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the second column is electrically connected to the first light-emitting unit 610 located in the second row and the second column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the first column is electrically connected to the third light-emitting unit 630 located in the first row and the first column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the second column is electrically connected to the second light-emitting unit 620 located in the second row and the first column in the second array arrangement. Preferably, in the black frame T02, it is the second connection type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the third column is electrically connected to the first light-emitting unit 610 located in the first row and the fourth column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the fourth column is electrically connected to the first light-emitting unit 610 located in the second row and the fourth column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the third column is electrically connected to the third light-emitting unit 630 located in the second row and the third column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the fourth column is electrically connected to the second light-emitting unit 620 located in the first row and the third column in the second array arrangement.

[0069] Specifically, Figure 3 shows the connection manner between the first pixel driving circuit 210 and the first light-emitting unit 610, the connection manner between the second pixel driving circuit 220 and the second light-emitting unit 620, and the connection manner between the third pixel driving circuit 230 and the third light-emitting unit 630.

[0070] Optionally, based on the above technical solution, as Figure 4As shown, the light-emitting unit 600 is arranged in a second array and further includes an additional-column arrangement 840, and the additional-column arrangement 840 is located on the side of the first column arrangement 810 away from the second column arrangement 820; the additional-column arrangement 840 is a repeated arrangement of the first light-emitting unit 610; the connection type in the black frame T01 is the first type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the first column is electrically connected to the first light-emitting unit 610 located in the second row and the new column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the second column is electrically connected to the first light-emitting unit 610 located in the first row and the second column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the first column is electrically connected to the third light-emitting unit 630 located in the first row and the first column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the second column is electrically connected to the second light-emitting unit 620 located in the second row and the first column in the second array arrangement; preferably, the connection type in the black frame T02 is the second type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the third column is electrically connected to the first light-emitting unit 610 located in the second row and the second column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the fourth column is electrically connected to the first light-emitting unit 610 located in the first row and the fourth column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the third column is electrically connected to the third light-emitting unit 630 located in the second row and the third column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the fourth column is electrically connected to the second light-emitting unit 620 located in the first row and the third column in the second array arrangement.

[0071] Specifically, Figure 4 It shows the connection manner of the first pixel driving circuit 210 and the first light-emitting unit 610, the connection manner of the second pixel driving circuit 220 and the second light-emitting unit 620, and the connection manner of the third pixel driving circuit 230 and the third light-emitting unit 630 when the light-emitting unit 600 is arranged in a second array and further includes an additional-column arrangement.

[0072] Optionally, on the basis of the above technical solution, as Figure 5As shown, the light-emitting unit 600 is arranged in a second array and further includes an additional-column arrangement 840, and the additional-column arrangement 840 is located on the side of the first column arrangement 810 away from the second column arrangement 820; the additional-column arrangement 840 is a repeated arrangement of the first light-emitting units 610; the connection type in the black frame T01 is the first type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the first column is electrically connected to the first light-emitting unit 610 located in the first row and the newly added column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the second column is electrically connected to the first light-emitting unit 610 located in the second row and the second column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the first column is electrically connected to the third light-emitting unit 630 located in the first row and the first column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the second column is electrically connected to the second light-emitting unit 620 located in the second row and the first column in the second array arrangement; preferably, the connection type in the black frame T02 is the second type. In the first array arrangement, the first pixel driving circuit 210 located in the first row and the third column is electrically connected to the first light-emitting unit 610 located in the first row and the second column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 located in the first row and the fourth column is electrically connected to the first light-emitting unit 610 located in the second row and the fourth column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 located in the second row and the third column is electrically connected to the third light-emitting unit 630 located in the second row and the third column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 located in the second row and the fourth column is electrically connected to the second light-emitting unit 620 located in the first row and the third column in the second array arrangement.

[0073] Specifically, Figure 5 shows the connection manners of the first pixel driving circuit 210 and the first light-emitting unit 610, the second pixel driving circuit 220 and the second light-emitting unit 620, and the third pixel driving circuit 230 and the third light-emitting unit 630 in the case where the light-emitting unit 600 is arranged in a second array and further includes an additional-column arrangement.

[0074] An embodiment of the present invention further provides a display device. Figure 6 is a schematic structural diagram of a display device provided by an embodiment of the present invention. Refer to Figure 6 , the display device 01a includes the display panel 01b described in the above embodiment. Therefore, the display device provided by the embodiment of the present invention also has the beneficial effects described in the above embodiment, which will not be elaborated here. Exemplarily, the display device may be an electronic device such as a mobile phone, a computer, or a wearable device, and the specific form of the display device is not limited in the embodiment of the present invention.

[0075] It should be understood that the various forms of processes shown above can be used, with steps reordered, added or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is imposed herein.

[0076] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub - combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A display panel, characterized in that, Comprising: A substrate; A plurality of pixel driving circuits are arranged in a first array on one side of the substrate; The first array arrangement includes a plurality of pixel driving circuit arrangements arranged along a first direction; The pixel driving circuit arrangement includes a plurality of pixel driving circuits arranged along a second direction, the first direction and the second direction are arranged crosswise; the pixel driving circuit arrangement includes a pixel driving circuit column or a pixel driving circuit row; the pixel driving circuit arrangement includes a first pixel driving circuit arrangement and a second pixel driving circuit arrangement alternately arranged along the first direction; the first pixel driving circuit arrangement includes a first pixel driving circuit; The second pixel driving circuit arrangement includes a second pixel driving circuit and a third pixel driving circuit; The driving current of the first pixel driving circuit is less than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is less than the driving current of the second pixel driving circuit; The first pixel driving circuit, the second pixel driving circuit and the third pixel driving circuit are respectively used to drive light-emitting units of different light-emitting colors; A plurality of power signal lines, including a first power signal line and a second power signal line; the first power signal line is connected to the first pixel driving circuit; The second power signal line is connected to the second pixel driving circuit; The third pixel driving circuit is connected to the first power signal line or the second power signal line, and the first power voltage provided by the first power signal line is less than the second power voltage provided by the second power signal line.

2. The display panel according to claim 1, wherein The first power signal line includes a first horizontal power signal line and a first vertical power signal line which are electrically connected in different layers, the first horizontal power signal line and the first vertical power signal line are arranged crosswise, and are connected through vias in each pixel driving circuit; The second power signal line includes a second horizontal power signal line and a second vertical power signal line which are electrically connected in different layers, the second horizontal power signal line and the second vertical power signal line are arranged crosswise, and are connected through vias in each pixel driving circuit; Preferably, the first horizontal power signal line and the second horizontal power signal line are arranged in the same layer; and / or, the first vertical power signal line and the second vertical power signal line are arranged in the same layer; Preferably, the first horizontal power signal line and the second horizontal power signal line are in the same layer as one plate of the capacitive structure in the pixel driving circuit.

3. The display panel according to claim 1, wherein The anode signal connection end of the pixel driving circuit is electrically connected to the anode of the light-emitting unit through a conductive line; The conductive line and the anode of the light-emitting unit are in the same layer or different layers; Preferably, the conductive line includes a redundant impedance compensation circuit, and the redundant impedance compensation circuit is located between the anode of the light-emitting unit and the anode signal connection end of the corresponding pixel driving circuit, and is used to compensate for the impedance difference existing between the light-emitting units of the same color and the anode signal connection end of the corresponding pixel driving circuit.

4. The display panel according to claim 1, wherein The display panel further includes a plurality of data lines extending along the second direction and arranged along the first direction; the data lines connected to the first pixel driving circuit are used to provide a first data voltage, and the data lines connected to the second pixel driving circuit are used to provide a second data voltage; When the display panel is in the highest gray scale state, the difference between the first data voltage and the second data voltage is greater than or equal to 0V and less than or equal to 0.2V; Preferably, the second pixel driving circuit and the third pixel driving circuit arranged in the same pixel driving circuit share one of the data lines.

5. The display panel according to claim 1, wherein the aspect ratio of the thin film transistor in the first pixel driving circuit is less than the aspect ratio of the thin film transistor in the second pixel driving circuit; and / or, the aspect ratio of the thin film transistor in the first pixel driving circuit is less than the aspect ratio of the thin film transistor in the third pixel driving circuit.

6. The display panel according to claim 1, wherein The plurality of light emitting units include a first light emitting unit, a second light emitting unit, and a third light emitting unit; The first light emitting unit is electrically connected to the first pixel driving circuit, the second light emitting unit is electrically connected to the second pixel driving circuit, and the third light emitting unit is electrically connected to the third pixel driving circuit; The emission wavelength of the first light emitting unit is greater than the emission wavelength of the second light emitting unit, and the emission wavelength of the third light emitting unit is greater than the emission wavelength of the first light emitting unit; Preferably, the first light emitting unit emits green light, the second light emitting unit emits blue light, and the third light emitting unit emits red light; Preferably, the plurality of light emitting units are arranged in a second array. In the second array arrangement, the first column arrangement is a repeated arrangement of the third light emitting unit, the second light emitting unit, the third light emitting unit, and the second light emitting unit; In the second array arrangement, the second column arrangement is a repeated arrangement of the first light emitting unit; In the second array arrangement, the third column arrangement is a repeated arrangement of the second light emitting unit, the third light emitting unit, the second light emitting unit, and the third light emitting unit; the second column arrangement is located between the first column arrangement and the third column arrangement; The first pixel driving circuit is arranged in a first pixel driving circuit row, and the second pixel driving circuit is arranged in a second pixel driving circuit row; In the first array arrangement, the first row is the first pixel driving circuit row; In the first array arrangement, the second row is the second pixel driving circuit row; The first array arrangement includes a first pixel driving circuit column and a second pixel driving circuit column alternately arranged along the second direction; The first pixel driving circuit column includes the first pixel driving circuit and the third pixel driving circuit alternately arranged along the first direction; The second pixel driving circuit column includes the first pixel driving circuit and the second pixel driving circuit alternately arranged along the first direction; The first column in the first array arrangement is the first pixel driving circuit column.

7. The display panel according to claim 6, wherein In the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the first row and the fourth column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the second row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

8. The display panel according to claim 6, wherein The light-emitting units arranged in the second array further include an additional-column arrangement, and the additional-column arrangement is located on the side of the first-column arrangement away from the second-column arrangement; The additional-column arrangement is a repeated arrangement of the first light-emitting units; In the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the newly added column in the second row in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the first row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

9. The display panel according to claim 6, wherein The light-emitting units arranged in the second array further include an additional-column arrangement, and the additional-column arrangement is located on a side of the first-column arrangement away from the second-column arrangement; The additional-column arrangement is a repeated arrangement of the first light-emitting units; In the first array arrangement, the first pixel driving circuit located in the first row and the first column is electrically connected to the first light-emitting unit located in the first row and the newly added column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the second column is electrically connected to the first light-emitting unit located in the second row and the second column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the first column is electrically connected to the third light-emitting unit located in the first row and the first column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the second column is electrically connected to the second light-emitting unit located in the second row and the first column in the second array arrangement; Preferably, in the first array arrangement, the first pixel driving circuit located in the first row and the third column is electrically connected to the first light-emitting unit located in the first row and the second column in the second array arrangement; In the first array arrangement, the first pixel driving circuit located in the first row and the fourth column is electrically connected to the first light-emitting unit located in the second row and the fourth column in the second array arrangement; In the first array arrangement, the third pixel driving circuit located in the second row and the third column is electrically connected to the third light-emitting unit located in the second row and the third column in the second array arrangement; In the first array arrangement, the second pixel driving circuit located in the second row and the fourth column is electrically connected to the second light-emitting unit located in the first row and the third column in the second array arrangement.

10. A display device, characterized in that, A display panel including any one of claims 1-9.

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