Display panel and display device

By employing pixel driving circuits with different driving currents in the display panel and setting the power supply voltage separately, the problems of high power consumption and uneven brightness of the display panel are solved, achieving lower power consumption and better display uniformity.

CN120356416BActive Publication Date: 2025-11-04BEIJING VISIONOX TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510814581.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2025-11-04
Estimated Expiration
2045-06-18

AI Technical Summary

Technical Problem

Existing display panels have high power consumption and uneven brightness, especially because the pixel driving circuits of light-emitting units with different colors of light emission are connected to the same power supply voltage.

Method used

By employing pixel driving circuits with different driving currents and setting separate power supply voltages, and taking advantage of the characteristic of minimum driving current, the voltage difference provided by the power signal lines is set to reduce power consumption and improve the problem of uneven brightness.

Benefits of technology

By setting the power supply voltage separately, the power consumption of the display panel is reduced, and the uniformity of brightness and color is improved, achieving a full white screen display effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a display panel and a display device. The display panel comprises: a plurality of pixel driving circuits arranged in a first array, comprising a plurality of pixel driving circuit arrangements 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 the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit; a first power signal line is connected with the first pixel driving circuit; a second power signal line is connected with the second pixel driving circuit; and the third pixel driving circuit is connected with the first power signal line or the second power signal line. The technical scheme of the embodiment of the application reduces the power consumption of the pixel driving circuit in the display panel.
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Description

TECHNICAL FIELD

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

[0002] With the development of information technology, the importance of display devices increases because the display device is a connection medium between users and information. 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 high power consumption. SUMMARY

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

[0005] According to an aspect of the present application, a display panel is provided, comprising:

[0006] a substrate;

[0007] a plurality of pixel driving circuits arranged in a first array on one side of the substrate; the first array comprises a plurality of pixel driving circuit arrangements arranged along a first direction;

[0008] the pixel driving circuit arrangement comprises a plurality of pixel driving circuits arranged along a second direction, the first direction and the second direction being arranged crosswise; the pixel driving circuit arrangement comprises a column of pixel driving circuits or a row of pixel driving circuits; the pixel driving circuit arrangement comprises a first pixel driving circuit arrangement and a second pixel driving circuit arrangement arranged alternately along the first 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 the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller 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;

[0009] a plurality of power signal lines comprising 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 signal line provides a first power voltage smaller than a second power voltage provided by the second power signal line.

[0010] In the technical solution, 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 and the third pixel driving circuit; the first power voltage provided by the first power signal line is smaller than the second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is smaller than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit, the power voltage of the first pixel driving circuit is separately set from the power voltage of the second pixel driving circuit and the third pixel driving circuit, and the first power voltage provided by the first power signal line is set to be smaller than the second power voltage provided by the second power signal line in combination with the characteristic that the driving current of the first pixel driving circuit is the smallest. The power voltage connected to the first pixel driving circuit is not redundantly set, thereby reducing the power consumption of the display panel and improving the brightness non-uniformity caused by the large voltage drop of the power signal line and the second pixel driving circuit. Alternatively, the first power signal line can 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 smaller than the second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is smaller than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit, the power of the first pixel driving circuit and the third pixel driving circuit is separately set from the power voltage of the second pixel driving circuit, and the first power voltage provided by the first power signal line is set to be smaller than the second power voltage provided by the second power signal line in combination with the characteristic that the driving current of the first pixel driving circuit and the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit. The power voltage connected to the first pixel driving circuit and the second pixel driving circuit is not redundantly set, thereby reducing the power consumption of the display panel and improving the brightness non-uniformity caused by the large voltage drop of the power signal line and the second pixel driving circuit. The sum of the driving current of the first pixel driving circuit and the driving current of the third pixel driving circuit is not much different from the driving current of the second pixel driving circuit. The scheme can realize a full white screen, so that the voltage drop of the power signal line and the first pixel driving circuit and the third pixel driving circuit is close to the voltage drop of the power signal line and the second pixel driving circuit, thereby being more helpful to improve the brightness uniformity and the chroma uniformity.

[0011] Optionally, the first power signal line includes a first horizontal power signal line and a first vertical power signal line which are connected in different layers and are arranged in cross, and are connected by a via in each pixel driving circuit.

[0012] The second power signal line comprises a second horizontal power signal line and a second vertical power signal line which are electrically connected in different layers, and the second horizontal power signal line and the second vertical power signal line are cross arranged and connected by a via in each pixel driving circuit.

[0013] In the technical solution, the first horizontal power signal line and the first vertical power signal line are arranged in different layers and electrically connected by a via. The second horizontal power signal line and the second vertical power signal line are arranged in different layers and electrically connected by a via. Thus, the plurality of first horizontal power signal lines and the first vertical power signal lines form a conductive grid, and the plurality of second horizontal power signal lines and the second vertical power signal lines form a conductive grid, thereby reducing the impedance of the first power signal line and the second power signal line.

[0014] 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.

[0015] In the technical solution, the preparation of the second horizontal power signal line is completed at the same time as the preparation of the first horizontal power signal line, thereby simplifying the preparation process and reducing the preparation cost. And / or, the preparation of the second vertical power signal line is completed at the same time as the preparation of the first vertical power signal line, thereby simplifying the preparation process and reducing the preparation cost.

[0016] Preferably, the first horizontal power signal line and the second horizontal power signal line are arranged in the same layer as one plate of the capacitor structure in the pixel driving circuit.

[0017] In the technical solution, the pixel driving circuit comprises a plurality of thin film transistors and a storage capacitor. The storage capacitor serves as a capacitor structure. In the above-mentioned solution, the preparation of the first horizontal power signal line and the second horizontal power signal line is completed at the same time as the preparation of one conductive plate of the storage capacitor in the pixel driving circuit, thereby simplifying the preparation process and reducing the preparation cost. Preferably, the other plate of the capacitor structure in the pixel driving circuit and the gate of the thin film transistor in the pixel driving circuit are arranged in the same layer, thereby further simplifying the preparation process and reducing the preparation cost.

[0018] Optionally, the anode signal connection end of the pixel driving circuit is electrically connected with the anode of the light emitting unit through a conductive circuit.

[0019] The conductive circuit and the anode of the light emitting unit are arranged in the same layer or different layers.

[0020] In the technical solution, the anode signal connection end of the pixel driving circuit is connected with the conductive circuit in the same layer as the anode of the light emitting unit. The preparation of the conductive circuit is completed at the same time as the preparation of the anode of the light emitting unit, thereby simplifying the preparation process and reducing the preparation cost. When the conductive circuit and the anode of the light emitting unit are in different layers, the conductive circuit can be a newly added conductive film layer. The newly added conductive film layer can be a metal film layer or an indium tin oxide film layer.

[0021] Preferably, the conductive circuit comprises a redundant impedance compensation circuit between the anode of the light emitting unit and the anode signal connection end of the corresponding pixel driving circuit, for compensating the impedance difference between the light emitting unit of the same color and the anode signal connection end of the corresponding pixel driving circuit.

[0022] The technical solution can eliminate the impedance difference of the conductive circuit between the light emitting unit of the same color and the corresponding pixel driving circuit, thereby improving the uniformity of the light emitting brightness of the light emitting unit of the same color, and improving the display uniformity of the display panel.

[0023] Optionally, the display panel further comprises a plurality of data lines extending along the second direction and arranged along the first direction; the data line connected with the first pixel driving circuit is used for providing a first data voltage, and the data line connected with the second pixel driving circuit is used for providing a second data voltage.

[0024] 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.

[0025] In the 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 of power consumption of the pixel driving circuit caused by the jump of the data voltage signal.

[0026] Preferably, the second pixel driving circuit and the third pixel driving circuit arranged in the same pixel driving circuit share one data line.

[0027] The technical solution reduces the number of data lines and reduces the preparation cost of the display panel.

[0028] Optionally, the width-length ratio of the thin film transistor in the first pixel driving circuit is smaller than the width-length ratio of the thin film transistor in the second pixel driving circuit; and / or, the width-length ratio of the thin film transistor in the first pixel driving circuit is smaller than the width-length ratio of the thin film transistor in the third pixel driving circuit.

[0029] In the technical solution, the driving current of the first pixel driving circuit is smaller than the driving current of the second pixel driving circuit, and the width-length ratio of the thin film transistor in the first pixel driving circuit can be set to be smaller than the width-length ratio of the thin film transistor in the second pixel driving circuit, so as to reduce the size of the first pixel driving circuit and the manufacturing cost of the display panel. The driving current of the first pixel driving circuit is smaller than the driving current of the third pixel driving circuit, and the width-length ratio of the thin film transistor in the first pixel driving circuit can be set to be smaller than the width-length ratio of the thin film transistor in the third pixel driving circuit, so as to reduce the size of the first pixel driving circuit and the manufacturing cost of the display panel.

[0030] Optionally, the plurality of light emitting units include a first light emitting unit, a second light emitting unit, and a third light emitting unit.

[0031] The first light emitting unit is electrically connected with the first pixel driving circuit, the second light emitting unit is electrically connected with the second pixel driving circuit, and the third light emitting unit is electrically connected with the third pixel driving circuit.

[0032] The first light emitting unit has a longer light emitting wavelength than the second light emitting unit, and the third light emitting unit has a longer light emitting wavelength than the first light emitting unit.

[0033] In the technical solution, the first light emitting unit is electrically connected with the first pixel driving circuit, the second light emitting unit is electrically connected with the second pixel driving circuit, and the third light emitting unit is electrically connected with the third pixel driving circuit, so as to realize that the first pixel driving circuit drives the first light emitting unit to emit light, the second pixel driving circuit drives the second light emitting unit to emit light, and the third pixel driving circuit drives the third light emitting unit to emit light.

[0034] 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.

[0035] In the 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.

[0036] Preferably, the plurality of light emitting units are arranged in a second array, and in the second array, the first column is arranged in 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.

[0037] In the second array, the second column is arranged in a repeated arrangement of the first light emitting unit.

[0038] In the second array arrangement, the third column arrangement is a repeating arrangement of the second light emitting unit, the third light emitting unit, the second light emitting unit, and the third light emitting unit.

[0039] The first pixel driving circuit arrangement is a first pixel driving circuit row, and the second pixel driving circuit arrangement is a second pixel driving circuit row.

[0040] In the first array arrangement, the first row is the first pixel driving circuit row.

[0041] In the first array arrangement, the second row is the second pixel driving circuit row.

[0042] The first array arrangement includes first pixel driving circuit columns and second pixel driving circuit columns arranged alternately along the second direction; the first pixel driving circuit column includes the first pixel driving circuit and the third pixel driving circuit arranged alternately along the first direction; and the second pixel driving circuit column includes the first pixel driving circuit and the second pixel driving circuit arranged alternately along the first direction.

[0043] In the first array arrangement, the first column is the first pixel driving circuit column.

[0044] The technical solution provides the position arrangement of the pixel driving circuit in the first array arrangement and the position arrangement of the light emitting unit in the second array arrangement.

[0045] Optionally, in the first array arrangement, the first pixel driving circuit at the first row and the first column is electrically connected with the first light emitting unit at the first row and the second column in the second array arrangement.

[0046] In the first array arrangement, the first pixel driving circuit at the first row and the second column is electrically connected with the first light emitting unit at the second row and the second column in the second array arrangement.

[0047] In the first array arrangement, the third pixel driving circuit at the second row and the first column is electrically connected with the third light emitting unit at the first row and the first column in the second array arrangement.

[0048] In the first array arrangement, the second pixel driving circuit at the second row and the second column is electrically connected with the second light emitting unit at the second row and the first column in the second array arrangement.

[0049] Preferably, in the first array arrangement, the first pixel driving circuit at the first row and the third column is electrically connected with the first light emitting unit at the first row and the fourth column in the second array arrangement.

[0050] The first pixel driving circuit located at the fourth column of the first row in the first array arrangement is electrically connected with the first light emitting unit located at the fourth column of the second row in the second array arrangement;

[0051] The third pixel driving circuit located at the third column of the second row in the first array arrangement is electrically connected with the third light emitting unit located at the third column of the second row in the second array arrangement;

[0052] The second pixel driving circuit located at the fourth column of the second row in the first array arrangement is electrically connected with the second light emitting unit located at the third column of the first row in the second array arrangement.

[0053] The technical scheme gives the connection mode of the first pixel driving circuit and the first light emitting unit, the connection mode of the second pixel driving circuit and the second light emitting unit, and the connection mode of the third pixel driving circuit and the third light emitting unit.

[0054] Optionally, the second array arrangement of the light emitting units further comprises 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;

[0055] The additional column arrangement is a repeated arrangement of the first light emitting unit;

[0056] The first pixel driving circuit located at the first column of the first row in the first array arrangement is electrically connected with the first light emitting unit located at the newly added column of the second row in the second array arrangement;

[0057] The first pixel driving circuit located at the second column of the first row in the first array arrangement is electrically connected with the first light emitting unit located at the second column of the first row in the second array arrangement;

[0058] The third pixel driving circuit located at the first column of the second row in the first array arrangement is electrically connected with the third light emitting unit located at the first column of the first row in the second array arrangement;

[0059] The second pixel driving circuit located at the second column of the second row in the first array arrangement is electrically connected with the second light emitting unit located at the first column of the second row in the second array arrangement;

[0060] Preferably, the first pixel driving circuit located at the third column of the first row in the first array arrangement is electrically connected with the first light emitting unit located at the second column of the second row in the second array arrangement;

[0061] The first pixel driving circuit located at the fourth column of the first row in the first array arrangement is electrically connected with the first light emitting unit located at the fourth column of the first row in the second array arrangement;

[0062] The third pixel driving circuit in the second row and the third column in the first array arrangement is electrically connected with the third light emitting unit in the second row and the third column in the second array arrangement;

[0063] The second pixel driving circuit in the second row and the fourth column in the first array arrangement is electrically connected with the second light emitting unit in the first row and the third column in the second array arrangement.

[0064] The technical scheme gives the connection mode of the first pixel driving circuit and the first light emitting unit, the connection mode of the second pixel driving circuit and the second light emitting unit, and the connection mode of the third pixel driving circuit and the third light emitting unit when the light emitting units are arranged in the second array arrangement and further include the additional column arrangement.

[0065] Optionally, the light emitting units arranged in the second array arrangement further include the additional column arrangement, and the additional column arrangement is located on the side of the first column arrangement away from the second column arrangement;

[0066] The additional column arrangement is a repeated arrangement of the first light emitting unit;

[0067] The first pixel driving circuit in the first row and the first column in the first array arrangement is electrically connected with the first light emitting unit in the first row and the newly added column in the second array arrangement;

[0068] The first pixel driving circuit in the first row and the second column in the first array arrangement is electrically connected with the first light emitting unit in the second row and the second column in the second array arrangement;

[0069] The third pixel driving circuit in the second row and the first column in the first array arrangement is electrically connected with the third light emitting unit in the first row and the first column in the second array arrangement;

[0070] The second pixel driving circuit in the second row and the second column in the first array arrangement is electrically connected with the second light emitting unit in the second row and the first column in the second array arrangement;

[0071] Preferably, the first pixel driving circuit in the first row and the third column in the first array arrangement is electrically connected with the first light emitting unit in the first row and the second column in the second array arrangement;

[0072] The first pixel driving circuit in the first row and the fourth column in the first array arrangement is electrically connected with the first light emitting unit in the second row and the fourth column in the second array arrangement;

[0073] The third pixel driving circuit in the first array arrangement at the second row and the third column is electrically connected with the third light emitting unit in the second array arrangement at the second row and the third column.

[0074] The second pixel driving circuit in the first array arrangement at the second row and the fourth column is electrically connected with the second light emitting unit in the second array arrangement at the first row and the third column.

[0075] The technical solution provides the connection mode of the first pixel driving circuit and the first light emitting unit, the connection mode of the second pixel driving circuit and the second light emitting unit, and the connection mode of the third pixel driving circuit and the third light emitting unit when the light emitting units are arranged in the second array arrangement and further include an increased column arrangement.

[0076] According to another aspect of the present application, a display device is provided, which includes any of the display panels according to the embodiments of the present application.

[0077] The display device also has the beneficial effects of the display panel described in the above embodiments, which will not be repeated here.

[0078] The display panel and the display device provided by the embodiment of the present application connect the first power signal line to the first pixel driving circuit; connect the second power signal line to the second pixel driving circuit and the third pixel driving circuit, and the first power voltage provided by the first power signal line is smaller than the second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is smaller than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit, the power voltage of the first pixel driving circuit is set separately from the power voltage of the second pixel driving circuit and the third pixel driving circuit, and the first power voltage provided by the first power signal line is set to be smaller than the second power voltage provided by the second power signal line in combination with the characteristic that the driving current of the first pixel driving circuit is the smallest, and the power voltage connected to the first pixel driving circuit is not redundantly set, thereby reducing the power consumption of the display panel, and the problem of uneven brightness caused by the large voltage drop of the power signal line and the second pixel driving circuit can be improved. Alternatively, the first power signal line can be connected to the first pixel driving circuit and the third pixel driving circuit; the second power signal line can be connected to the second pixel driving circuit; and the first power voltage provided by the first power signal line is smaller than the second power voltage provided by the second power signal line. Since the driving current of the first pixel driving circuit is smaller than the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit, the power of the first pixel driving circuit and the third pixel driving circuit is set separately from the power voltage of the second pixel driving circuit, and the first power voltage provided by the first power signal line is set to be smaller than the second power voltage provided by the second power signal line in combination with the characteristic that the driving current of the first pixel driving circuit and the third pixel driving circuit is smaller than the driving current of the second pixel driving circuit, and the power voltage connected to the first pixel driving circuit and the second pixel driving circuit is not redundantly set, thereby reducing the power consumption of the display panel, and the problem of uneven brightness caused by the large voltage drop of the power signal line and the second pixel driving circuit can be improved. The sum of the driving current of the first pixel driving circuit and the driving current of the third pixel driving circuit is not much different from the driving current of the second pixel driving circuit. By using this scheme, a full white picture can be realized, the voltage drop of the power signal line and the first pixel driving circuit and the third pixel driving circuit is close to the voltage drop of the power signal line and the second pixel driving circuit, and therefore the brightness uniformity and the chroma uniformity can be improved.

[0079] It should be understood that the description in this section is not intended to identify key or essential features of embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0080] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without any creative effort should be within the protection scope of the present application.

[0081] 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 application;

[0082] 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 application;

[0083] Figure 3 is a top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application;

[0084] Figure 4 is another top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application;

[0085] Figure 5 is still another top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application;

[0086] Figure 6 is a structural schematic diagram of a display device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0087] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without any creative effort should be within the protection scope of the present application.

[0088] It is to be understood that the terms "first", "second", and the like used in the description and the claims of the present application as well as the above-described drawings are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the application described herein can be carried out in other than the order illustrated or described herein. Furthermore, the terms "comprising" and "including" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or apparatus that comprises a list of steps or units not necessarily limited to those specifically listed, but can include other steps or units not expressly listed or inherent to such process, method, product or apparatus.

[0089] In the display panel, the light emitting units include red light emitting units, green light emitting units and blue light emitting units. In the existing display panel, the pixel driving circuits corresponding to the light emitting units of different light emitting colors are connected to the same power supply voltage. Since the driving current required by the light emitting material of the blue light emitting unit is greater than the driving current required by the light emitting material of the green light emitting unit, in order to meet the large driving current required by the light emitting material of the blue light emitting unit, it is necessary to keep a large difference between the data voltage and the power supply voltage connected by the pixel driving circuit corresponding to the blue light emitting unit. Therefore, the above technical solution causes the power supply voltage connected by the pixel driving circuit corresponding to the green light emitting unit to have redundant setting, thereby causing the display panel to have relatively high power consumption.

[0090] In order to solve the above problems, the embodiments of the present application provide the following technical solutions:

[0091] As shown in Figure 1 and Figure 2 , Figure 1 is a top view structural schematic diagram of a substrate and a pixel driving circuit in a display panel provided by the embodiments of the present application, Figure 2is another top view structural schematic diagram of a substrate and a pixel driving circuit in a display panel provided by the embodiment of the present application. The display panel comprises: a substrate 100; a plurality of pixel driving circuits 200 arranged in a first array on one side of the substrate 100; the first array comprises a plurality of pixel driving circuit arrangements 300 arranged along a first direction Y; the pixel driving circuit arrangement 300 comprises a plurality of pixel driving circuits 200 arranged along a second direction X, and the first direction Y and the second direction X are arranged crossly; wherein the first direction Y and the second direction X can be perpendicular or not perpendicular. The pixel driving circuit arrangement 300 comprises a pixel driving circuit column or a pixel driving circuit row; the pixel driving circuit arrangement 300 comprises a first pixel driving circuit arrangement 310 and a second pixel driving circuit arrangement 320 arranged alternately along the first direction Y; the first pixel driving circuit arrangement 310 comprises a first pixel driving circuit 210; the second pixel driving circuit arrangement 320 comprises 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 for driving light emitting units of different colors; a plurality of power supply signal lines 400, comprising a first power supply signal line 410 and a second power supply signal line 420; the first power supply signal line 410 is connected with the first pixel driving circuit 210; the second power supply signal line 420 is connected with the second pixel driving circuit 220; as shown in Figure 2 , the third pixel driving circuit 230 is connected with the first power supply signal line 410; or, as shown in Figure 1 , the third pixel driving circuit 230 is connected with 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.

[0092] In the embodiment of the present application, 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. For example, as shown in Figure 1 and Figure 2 , the first pixel driving circuit 210 is used for driving green light emitting units to emit light, the second pixel driving circuit 220 is used for driving blue light emitting units to emit light, and the third pixel driving circuit 230 is used for driving red light emitting units to emit light.

[0093] The technical solution provided by the embodiment of the present application is as follows Figure 1As shown, the first power signal line 410 is connected to the first pixel driving circuit 210; the second power signal line 420 is connected to the second pixel driving circuit 220 and the third pixel driving circuit 230. The first power supply voltage VDD1 provided by the first power signal line 410 is less than the second power supply voltage VDD2 provided by the second power 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, the power supply voltage of the first pixel driving circuit 210 is set separately from the power supply voltages of the second pixel driving circuit 220 and the third pixel driving circuit 230. Considering 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 signal line 410 is set to be less than the second power supply voltage VDD2 provided by the second power signal line 420. There is no redundancy in the power supply voltage connected to the first pixel driving circuit 210, thereby reducing the power consumption of the display panel and improving the problem of uneven brightness caused by the large voltage drop between the power signal line and the second pixel driving circuit 220. Or, such as Figure 2 As shown, the first power signal line 410 can also be connected to the first pixel driving circuit 210 and the third pixel driving circuit 230; the second power signal line 420 can be connected to the second pixel driving circuit 220; the first power supply voltage VDD1 provided by the first power signal line 410 is less than the second power supply voltage VDD2 provided by the second power 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, the power supply voltages of the first pixel driving circuit 210 and the third pixel driving circuit 230 are set separately from the power supply voltage of the second pixel driving circuit 220. Considering that the driving currents of the first pixel driving circuit 210 and the third pixel driving circuit 230 are both less than the driving current of the second pixel driving circuit 220, the first power supply voltage VDD1 provided by the first power signal line 410 is set to be less than the second power supply voltage VDD2 provided by the second power signal line 420. There is no redundancy in 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 improving the problem of uneven brightness caused by the large voltage drop between the power signal line and the second pixel driving circuit 220. In this scheme, the sum of the driving current of the first pixel driving circuit 210 and the driving current of the third pixel driving circuit 230 is not much different from the driving current of the second pixel driving circuit 220. This scheme can achieve a full white screen, making the voltage drop between the power signal line and the first pixel driving circuit 210 and the third pixel driving circuit 230 close to the voltage drop between the power signal line and the second pixel driving circuit 220. Therefore, it is more helpful to improve the uniformity of brightness and color.

[0094] Optionally, based on the above technical solutions, as shown in Figure 1 and Figure 2 The first power signal line 410 includes the first horizontal power signal line 411 and the first vertical power signal line 412 which are electrically connected in different layers, and the first horizontal power signal line 411 and the first vertical power signal line 412 are cross arranged and connected by a via in each pixel driving circuit 200. The second power signal line 420 includes the second horizontal power signal line 421 and the second vertical power signal line 422 which are electrically connected in different layers, and the second horizontal power signal line 421 and the second vertical power signal line 422 are cross arranged and connected by a via in each pixel driving circuit 200.

[0095] Specifically, the first horizontal power signal line 411 and the first vertical power signal line 412 are arranged in different film layers and electrically connected by a via. The second horizontal power signal line 421 and the second vertical power signal line 422 are arranged in different film layers and electrically connected by a via. In this way, the plurality of first horizontal power signal lines 411 and the plurality of first vertical power signal lines 412 form a conductive grid, and the plurality of second horizontal power signal lines 421 and the plurality of second vertical power signal lines 422 form a conductive grid, thereby reducing the impedance of the first power signal line 410 and the second power signal line 420.

[0096] Preferably, as shown in Figure 1 and Figure 2 The first horizontal power signal line 411 and the second horizontal power signal line 421 are arranged in the same layer, and / or the first vertical power signal line 412 and the second vertical power signal line 422 are arranged in the same layer.

[0097] Specifically, the preparation of the first horizontal power signal line 411 is completed at the same time as the preparation of the second horizontal power signal line 421, thereby simplifying the preparation process and reducing the preparation cost. And / or, the preparation of the first vertical power signal line 412 is completed at the same time as the preparation of the second vertical power signal line 422, thereby simplifying the preparation process and reducing the preparation cost.

[0098] Preferably, as shown in Figure 1 and Figure 2 The first horizontal power signal line 411 and the second horizontal power signal line 421 are arranged in the same layer as one plate of the capacitor structure in the pixel driving circuit 200.

[0099] Specifically, the pixel driving circuit 200 comprises a plurality of thin film transistors and a storage capacitor. The storage capacitor is a capacitor structure. In the above scheme, the preparation of the first horizontal power signal line 411 and the second horizontal power signal line 421 is completed at the same time as the preparation of one conductive plate of the storage capacitor in the pixel driving circuit 200, thereby simplifying the preparation process and reducing the preparation cost. Preferably, the other plate of the capacitor structure in the pixel driving circuit 200 and the gate of the thin film transistor in the pixel driving circuit 200 are located in the same layer, thereby further simplifying the preparation process and reducing the preparation cost.

[0100] Preferably, the first longitudinal power signal line 412 and the second longitudinal power signal line 422 generally adopt a metal thin film layer with relatively small sheet resistance, so as to reduce the resistance of the power signal line and thereby reduce the power consumption of the display panel.

[0101] Optionally, based on the above technical scheme, as shown in Figures 3-5 Figure 3 is a top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application, Figure 4 is another top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application, Figure 5 is still another top view of a first array arrangement and a second array arrangement provided by an embodiment of the present application, wherein the anode signal connection end of the pixel driving circuit 200 is electrically connected to the anode of the light emitting unit 600 through the conductive line 700; the conductive line 700 and the anode of the light emitting unit 600 are located in the same layer or different layers.

[0102] Specifically, the anode signal connection end of the pixel driving circuit 200 is connected through the conductive line which is located in the same layer as the anode of the light emitting unit 600, and the preparation of the conductive line 700 is completed at the same time as the preparation of the anode of the light emitting unit 600, thereby simplifying the preparation process and reducing the preparation cost. When the conductive line 700 and the anode of the light emitting unit 600 are located in 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 an indium tin oxide (ITO) film layer. The anode signal connection end of the first pixel driving circuit 210 is electrically connected to the anode of the first light emitting unit 610 through the first conductive line 710. The anode signal connection end of the second pixel driving circuit 220 is electrically connected to the anode of the second light emitting unit 620 through the second conductive line 720. The anode signal connection end of the third pixel driving circuit 230 is electrically connected to the anode of the third light emitting unit 630 through the third conductive line 730.

[0103] Preferably, as shown in Figures 3-5 ​As shown, the conductive line 700 includes a redundant impedance compensation circuit between the anode of the light emitting unit 600 and the anode signal connection end of the corresponding pixel driving circuit 200, for compensating the impedance difference between the light emitting unit 600 of the same color and the anode signal connection end of the corresponding pixel driving circuit 200, eliminating the impedance difference of the conductive line between the light emitting unit 600 of the same light emitting color and the corresponding pixel driving circuit 200, thereby improving the uniformity of the light emitting brightness of the light emitting unit 600 of the same light emitting color, and improving the display uniformity of the display panel.

[0104] Optionally, on the basis of the above technical solution, as shown in Figure 1 and Figure 2 , the display panel further includes a plurality of data lines 500 extending along the second direction X and arranged along the first direction Y; the data line 500 connected with the first pixel driving circuit 210 is used for providing a first data voltage Vdata1, and the data line 500 connected with the second pixel driving circuit 220 is used for providing 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.

[0105] 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 of power consumption of the pixel driving circuit caused by the jump of the data voltage signal.

[0106] Preferably, the second pixel driving circuit 220 and the third pixel driving circuit 230 in the same pixel driving circuit arrangement 300 share one data line 500, which reduces the number of data lines 500 and reduces the preparation cost of the display panel.

[0107] Optionally, on the basis of the above technical solution, as shown in Figure 1 and Figure 2 , the width-length ratio of the thin film transistor in the first pixel driving circuit 210 is less than the width-length ratio of the thin film transistor in the second pixel driving circuit 220; and / or, the width-length ratio of the thin film transistor in the first pixel driving circuit 210 is less than the width-length ratio of the thin film transistor in the third pixel driving circuit 230.

[0108] 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 width-length ratio of the thin film transistor in the first pixel driving circuit 210 can be set to be less than the width-length ratio of the thin film transistor in the second pixel driving circuit 220, so as 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 width-length ratio of the thin film transistor in the first pixel driving circuit 210 can be set to be less than the width-length ratio of the thin film transistor in the third pixel driving circuit 230, so as to reduce the size of the first pixel driving circuit 210, thereby reducing the manufacturing cost of the display panel.

[0109] Optionally, based on the above technical solution, as shown in Figures 3-5 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 with the first pixel driving circuit 210, the second light emitting unit 620 is electrically connected with the second pixel driving circuit 220, and the third light emitting unit 630 is electrically connected with the third pixel driving circuit 230; the light emitting wavelength of the first light emitting unit 610 is greater than the light emitting wavelength of the second light emitting unit 620, and the light emitting wavelength of the third light emitting unit 630 is greater than the light emitting wavelength of the first light emitting unit 610.

[0110] Specifically, the first light emitting unit 610 is electrically connected with the first pixel driving circuit 210, the second light emitting unit 620 is electrically connected with the second pixel driving circuit 220, and the third light emitting unit 630 is electrically connected with the third pixel driving circuit 230, so as to realize that the first pixel driving circuit 210 drives the first light emitting unit 610 to emit light, the second pixel driving circuit 220 drives the second light emitting unit 620 to emit light, and the third pixel driving circuit 230 drives the third light emitting unit 630 to emit light.

[0111] Preferably, as shown in Figures 3-5 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.

[0112] 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.

[0113] Preferably, as shown in Figures 3-5As shown, the plurality of light emitting units 600 are arranged in a second array, in which the first column direction 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, the second column direction arrangement 820 is a repeated arrangement of the first light emitting unit 610; in the second array, the third column direction 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 direction arrangement 820 is located between the first column direction arrangement 810 and the third column direction arrangement 830.

[0114] The first pixel driving circuit arrangement 310 is a first pixel driving circuit row, and the second pixel driving circuit arrangement 320 is a second pixel driving circuit row; in the first array, the first row is the first pixel driving circuit row; in the first array, the second row is the second pixel driving circuit row; the first array includes first pixel driving circuit columns and second pixel driving circuit columns arranged alternately along the second direction X; the first pixel driving circuit column includes 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 column includes the first pixel driving circuit 210 and the second pixel driving circuit 220 arranged alternately along the first direction Y; in the first array, the first column is the first pixel driving circuit column.

[0115] The above technical solution gives the position arrangement of the pixel driving circuit 200 in the first array and the position arrangement of the light emitting unit 600 in the second array.

[0116] Optionally, on the basis of the above technical solution, such as Figure 3As shown, the black frame T01 is of the first connection type, in the first array arrangement, the first pixel driving circuit 210 in the first row and the first column is electrically connected with the first light emitting unit 610 in the first row and the second column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 in the first row and the second column is electrically connected with the first light emitting unit 610 in the second row and the second column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 in the second row and the first column is electrically connected with the third light emitting unit 630 in the first row and the first column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 in the second row and the second column is electrically connected with the second light emitting unit 620 in the second row and the first column in the second array arrangement; preferably, the black frame T02 is of the second connection type, in the first array arrangement, the first pixel driving circuit 210 in the first row and the third column is electrically connected with the first light emitting unit 610 in the first row and the fourth column in the second array arrangement; in the first array arrangement, the first pixel driving circuit 210 in the first row and the fourth column is electrically connected with the first light emitting unit 610 in the second row and the fourth column in the second array arrangement; in the first array arrangement, the third pixel driving circuit 230 in the second row and the third column is electrically connected with the third light emitting unit 630 in the second row and the third column in the second array arrangement; in the first array arrangement, the second pixel driving circuit 220 in the second row and the fourth column is electrically connected with the second light emitting unit 620 in the first row and the third column in the second array arrangement.

[0117] Specifically, Figure 3 The connection mode of the first pixel driving circuit 210 and the first light emitting unit 610, the connection mode of the second pixel driving circuit 220 and the second light emitting unit 620, and the connection mode of the third pixel driving circuit 230 and the third light emitting unit 630 are shown.

[0118] Optionally, on the basis of the above technical solutions, such as Figure 4As shown, the light emitting unit 600 is arranged in the second array and further includes an additional column array 840 located on the side of the first column array 810 away from the second column array 820; the additional column array 840 is a repeated arrangement of the first light emitting unit 610; in the black frame T01, the first connection type is adopted, in the first array, the first pixel driving circuit 210 in the first row and the first column is electrically connected with the first light emitting unit 610 in the second row and the additional column in the second array; in the first array, the first pixel driving circuit 210 in the first row and the second column is electrically connected with the first light emitting unit 610 in the first row and the second column in the second array; in the first array, the third pixel driving circuit 230 in the second row and the first column is electrically connected with the third light emitting unit 630 in the first row and the first column in the second array; in the first array, the second pixel driving circuit 220 in the second row and the second column is electrically connected with the second light emitting unit 620 in the second row and the first column in the second array; preferably, in the black frame T02, the second connection type is adopted, in the first array, the first pixel driving circuit 210 in the first row and the third column is electrically connected with the first light emitting unit 610 in the second row and the second column in the second array; in the first array, the first pixel driving circuit 210 in the first row and the fourth column is electrically connected with the first light emitting unit 610 in the first row and the fourth column in the second array; in the first array, the third pixel driving circuit 230 in the second row and the third column is electrically connected with the third light emitting unit 630 in the second row and the third column in the second array; in the first array, the second pixel driving circuit 220 in the second row and the fourth column is electrically connected with the second light emitting unit 620 in the first row and the third column in the second array.

[0119] Specifically, Figure 4 The connection mode of the first pixel driving circuit 210 and the first light emitting unit 610, the connection mode of the second pixel driving circuit 220 and the second light emitting unit 620, and the connection mode of the third pixel driving circuit 230 and the third light emitting unit 630 are shown when the light emitting unit 600 is arranged in the second array and further includes an additional column array.

[0120] Optionally, based on the above technical solution, Figure 5As shown, the light emitting unit 600 is arranged in the second array and further includes an additional column array 840 located on the side of the first column array 810 away from the second column array 820; the additional column array 840 is a repeated arrangement of the first light emitting unit 610; in the black frame T01, the first connection type is adopted, in the first array, the first pixel driving circuit 210 in the first row and the first column is electrically connected with the first light emitting unit 610 in the first row and the newly added column in the second array; in the first array, the first pixel driving circuit 210 in the first row and the second column is electrically connected with the first light emitting unit 610 in the second row and the second column in the second array; in the first array, the third pixel driving circuit 230 in the second row and the first column is electrically connected with the third light emitting unit 630 in the first row and the first column in the second array; in the first array, the second pixel driving circuit 220 in the second row and the second column is electrically connected with the second light emitting unit 620 in the second row and the first column in the second array; preferably, in the black frame T02, the second connection type is adopted, in the first array, the first pixel driving circuit 210 in the first row and the third column is electrically connected with the first light emitting unit 610 in the first row and the second column in the second array; in the first array, the first pixel driving circuit 210 in the first row and the fourth column is electrically connected with the first light emitting unit 610 in the second row and the fourth column in the second array; in the first array, the third pixel driving circuit 230 in the second row and the third column is electrically connected with the third light emitting unit 630 in the second row and the third column in the second array; in the first array, the second pixel driving circuit 220 in the second row and the fourth column is electrically connected with the second light emitting unit 620 in the first row and the third column in the second array.

[0121] Specifically, Figure 5 The connection mode of the first pixel driving circuit 210 and the first light emitting unit 610, the connection mode of the second pixel driving circuit 220 and the second light emitting unit 620, and the connection mode of the third pixel driving circuit 230 and the third light emitting unit 630 are shown when the light emitting unit 600 is arranged in the second array and further includes an additional column array.

[0122] The display device provided by the embodiment of the present application also has the beneficial effects of the display panel described in the above embodiment, which will not be described here. Figure 6 The display device provided by the embodiment of the present application also has the beneficial effects of the display panel described in the above embodiment, which will not be described here. Figure 6 The display device 01a includes the display panel 01b described in the above embodiment, so the display device provided by the embodiment of the present application also has the beneficial effects of the display panel described in the above embodiment, which will not be described here. For example, the display device can be a mobile phone, a computer, a wearable device, or other electronic equipment, and the specific form of the display device is not limited in the embodiment of the present application.

[0123] It should be understood that the various forms of flow shown above can be used to reorder, add, or remove steps. For example, the steps recited in the present application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which are not limited herein.

[0124] The above detailed description does not constitute a limitation on the protection scope of the present application. 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 replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a plurality of pixel driving circuits arranged in a first array on one side of the substrate; the first array comprises a plurality of pixel driving circuit arrangements arranged in a first direction; the pixel driving circuit arrangement comprises a plurality of pixel driving circuits arranged in a second direction, the first direction and the second direction being arranged crosswise; the pixel driving circuit arrangement comprises a pixel driving circuit column or a pixel driving circuit row; the pixel driving circuit arrangement comprises a first pixel driving circuit arrangement and a second pixel driving circuit arrangement arranged alternately in the first 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 the driving current of the third pixel driving circuit, and the driving current of the third pixel driving circuit is smaller 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 for driving light emitting units of different light emitting colors; a plurality of power signal lines, comprising 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 smaller than the second power voltage provided by the second power signal line.

2. The display panel of claim 1, wherein, the first power signal line comprises a first horizontal power signal line and a first vertical power signal line electrically connected in different layers, the first horizontal power signal line and the first vertical power signal line are arranged crosswise and connected by a via in each pixel driving circuit; the second power signal line comprises a second horizontal power signal line and a second vertical power signal line electrically connected in different layers, the second horizontal power signal line and the second vertical power signal line are arranged crosswise and connected by a via in each pixel driving circuit.

3. The display panel of claim 2, wherein, 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.

4. The display panel of claim 2, wherein, one pole plate of a capacitor structure in the pixel driving circuit is arranged in the same layer with the first horizontal power signal line and the second horizontal power signal line.

5. The display panel of claim 1, wherein: an anode signal connection end of the pixel driving circuit is electrically connected to an anode of the light emitting unit through a conductive circuit; the conductive circuit and the anode of the light emitting unit are arranged in the same layer or different layers.

6. The display panel of claim 5, wherein, the conductive circuit comprises a redundant impedance compensation circuit, the redundant impedance compensation circuit is arranged between the anode of the light emitting unit and the anode signal connection end of the corresponding pixel driving circuit, and is used for compensating the impedance difference between the light emitting unit of the same color and the anode signal connection end of the corresponding pixel driving circuit.

7. The display panel of claim 1, wherein: The display panel further comprises a plurality of data lines extending along the second direction and arranged along the first direction; the data line connected with the first pixel driving circuit is configured to provide a first data voltage, and the data line connected with the second pixel driving circuit is configured to provide a second data voltage; When the display panel is in a highest gray scale state, a 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.

8. The display panel of claim 7, wherein, The second pixel driving circuit and the third pixel driving circuit arranged in the same pixel driving circuit arrangement share one data line.

9. The display panel of claim 1, wherein, a width-length ratio of a thin film transistor in the first pixel driving circuit is less than a width-length ratio of a thin film transistor in the second pixel driving circuit; and / or, a width-length ratio of a thin film transistor in the first pixel driving circuit is less than a width-length ratio of a thin film transistor in the third pixel driving circuit.

10. The display panel of claim 1, wherein, The plurality of light emitting units comprises a first light emitting unit, a second light emitting unit and a third light emitting unit; the first light emitting unit is electrically connected with the first pixel driving circuit, the second light emitting unit is electrically connected with the second pixel driving circuit, and the third light emitting unit is electrically connected with the third pixel driving circuit; a light emitting wavelength of the first light emitting unit is greater than a light emitting wavelength of the second light emitting unit, and a light emitting wavelength of the third light emitting unit is greater than a light emitting wavelength of the first light emitting unit.

11. The display panel of claim 10, wherein, 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.

12. The display panel of claim 10, wherein, The plurality of light emitting units are arranged in a second array, in the second array, a first column direction is arranged as 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, a second column direction is arranged as a repeated arrangement of the first light emitting unit; in the second array, a third column direction is arranged as 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 direction is located between the first column direction and the third column direction; the first pixel driving circuit arrangement is a first pixel driving circuit row, and the second pixel driving circuit arrangement is a second pixel driving circuit row; in the first array, a first row is the first pixel driving circuit row; in the first array, a second row is the second pixel driving circuit row; the first array comprises first pixel driving circuit columns and second pixel driving circuit columns arranged alternately along the second direction; the first pixel driving circuit column comprises the first pixel driving circuit and the third pixel driving circuit arranged alternately along the first direction; the second pixel driving circuit column comprises the first pixel driving circuit and the second pixel driving circuit arranged alternately along the first direction; in the first array, a first column is the first pixel driving circuit column.

13. The display panel of claim 12, wherein, The first pixel driving circuit in the first row and the first column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the newly added column of the second array arrangement; The first pixel driving circuit in the second row and the second column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the second column of the second array arrangement; The third pixel driving circuit in the second row and the first column of the first array arrangement is electrically connected with the third light emitting unit in the first row and the first column of the second array arrangement; The second pixel driving circuit in the second row and the second column of the first array arrangement is electrically connected with the second light emitting unit in the first row and the first column of the second array arrangement.

14. The display panel of claim 13, wherein, The first pixel driving circuit in the first row and the third column of the first array arrangement is electrically connected with the first light emitting unit in the first row and the fourth column of the second array arrangement; The first pixel driving circuit in the first row and the fourth column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the fourth column of the second array arrangement; The third pixel driving circuit in the second row and the third column of the first array arrangement is electrically connected with the third light emitting unit in the second row and the third column of the second array arrangement; The second pixel driving circuit in the second row and the fourth column of the first array arrangement is electrically connected with the second light emitting unit in the first row and the third column of the second array arrangement.

15. The display panel of claim 12, wherein, The second array arrangement of the light emitting unit further comprises an additional column arrangement, which 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 unit; The first pixel driving circuit in the first row and the first column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the newly added column of the second array arrangement; The first pixel driving circuit in the first row and the second column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the second column of the second array arrangement; The third pixel driving circuit in the second row and the first column of the first array arrangement is electrically connected with the third light emitting unit in the first row and the first column of the second array arrangement; The second pixel driving circuit in the second row and the second column of the first array arrangement is electrically connected with the second light emitting unit in the first row and the first column of the second array arrangement.

16. The display panel of claim 15, wherein, The first pixel driving circuit in the first row and the third column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the second column of the second array arrangement; The first pixel driving circuit in the first row and the fourth column of the first array arrangement is electrically connected with the first light emitting unit in the second row and the fourth column of the second array arrangement; The third pixel driving circuit in the second row and the third column of the first array arrangement is electrically connected with the third light emitting unit in the second row and the third column of the second array arrangement; The second pixel driving circuit in the fourth column of the second row in the first array arrangement is electrically connected with the second light emitting unit in the third column of the first row in the second array arrangement.

17. The display panel of claim 12, wherein, The second array arrangement of the light emitting units further comprises an additional column arrangement, which 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 unit. The first pixel driving circuit in the first column of the first row in the first array arrangement is electrically connected with the first light emitting unit in the newly added column of the first row in the second array arrangement. The first pixel driving circuit in the second column of the first row in the first array arrangement is electrically connected with the first light emitting unit in the second column of the second row in the second array arrangement. The third pixel driving circuit in the first column of the second row in the first array arrangement is electrically connected with the third light emitting unit in the first column of the first row in the second array arrangement. The second pixel driving circuit in the second column of the second row in the first array arrangement is electrically connected with the second light emitting unit in the first column of the second row in the second array arrangement.

18. The display panel of claim 17, wherein, The first pixel driving circuit in the third column of the first row in the first array arrangement is electrically connected with the first light emitting unit in the second column of the first row in the second array arrangement. The first pixel driving circuit in the fourth column of the first row in the first array arrangement is electrically connected with the first light emitting unit in the third column of the second row in the second array arrangement. The third pixel driving circuit in the third column of the second row in the first array arrangement is electrically connected with the third light emitting unit in the third column of the second row in the second array arrangement. The second pixel driving circuit in the fourth column of the second row in the first array arrangement is electrically connected with the second light emitting unit in the third column of the first row in the second array arrangement.

19. A display device comprising: The display panel of any one of claims 1-18. The display panel of any one of claims 1-18.

Citation Information

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