Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a sub-pixel group, the sub-pixel group comprises n driving circuits and m light-emitting elements, and the output ends of the n driving circuits are electrically connected with the m light-emitting elements; the m light-emitting elements comprise n first light-emitting elements and i second light-emitting elements, the output ends of the n driving circuits are electrically connected with the n first light-emitting elements in a one-to-one correspondence mode, the output end of at least one driving circuit is electrically connected with the second light-emitting element through an interpolation unit, the second light-emitting element is electrically connected with a compensation unit, n + i = m, m, n and i are all integers larger than 0, and n is an integer larger than 0. The interpolation unit is used for transmitting the driving signal from the driving circuit to the second light-emitting element, and the compensation unit is used for compensating the driving signal to the second light-emitting element. According to the display panel and the display device provided by the embodiment of the invention, the display resolution level can be increased under the condition that the size of the display panel is not increased.

Description

Technical Field

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

[0002] With the development of display technology, the application of display panels is becoming more and more common, and users have more and more requirements for display panels. In order to meet the requirements of higher definition, the resolution of display panels is getting higher and higher.

[0003] When faced with the demand for ultra-high resolution, achieving this goal requires increasing the number of pixel arrays; this requires a larger display panel. However, for a display panel of a fixed size, the space for expanding the pixel array is limited, preventing further increases in display resolution. Increasing display resolution without increasing the size of the display panel is a challenge facing those skilled in the art. Summary of the Invention

[0004] Embodiments of the present application provide a display panel and a display device, which can increase the display resolution level without increasing the size of the display panel.

[0005] In a first aspect, an embodiment of the present application provides a display panel comprising a sub-pixel group, the sub-pixel group comprising n driving circuits and m light-emitting elements, the output ends of the n driving circuits being electrically connected to the m light-emitting elements; the m light-emitting elements comprising n first light-emitting elements and i second light-emitting elements, the output ends of the n driving circuits being electrically connected to the n first light-emitting elements in a one-to-one correspondence, and the output end of at least one driving circuit being electrically connected to the second light-emitting element through an interpolation unit, the second light-emitting element being electrically connected to a compensation unit, n+i=m, m, n, i being integers greater than 0, the interpolation unit being used to transmit a driving signal from the driving circuit to the second light-emitting element, and the compensation unit being used to compensate the driving signal to the second light-emitting element.

[0006] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel as described in the embodiment of the first aspect.

[0007] According to the display panel and display device provided in the embodiments of the present application, n driving circuits are used to drive m light-emitting elements, where n is less than m, thereby reducing the number of driving circuits and enabling more light-emitting elements to be arranged in a limited space, thereby improving the display resolution of the display panel; in addition, the compensation unit is used to compensate the driving signal to the second light-emitting element, and the driving signal obtained by the interpolation unit from the driving circuit and the compensation signal provided by the compensation unit jointly drive the second light-emitting element to meet the brightness requirement of the second light-emitting element, thereby improving the display resolution while ensuring the normal light-emitting ability of the light-emitting element. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0009] Figure 1 A schematic structural diagram of a display panel provided in an embodiment of the present application is shown;

[0010] Figure 2 A schematic diagram illustrating an architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0011] Figure 3 Another schematic diagram illustrating the architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0012] Figure 4 A schematic diagram illustrating another architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0013] Figure 5 A schematic diagram illustrating another architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0014] Figure 6 A schematic diagram illustrating another architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0015] Figure 7 A schematic diagram showing a circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0016] Figure 8 Show Figure 7 A timing diagram of

[0017] Figure 9 Another schematic diagram of a circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0018] Figure 10 A schematic diagram showing another circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0019] Figure 11 Show Figure 10 A timing diagram of

[0020] Figure 12 A schematic diagram showing another circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0021] Figure 13 A schematic diagram showing another circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0022] Figure 14 A schematic diagram showing another circuit structure of a driving circuit in a display panel provided in an embodiment of the present application is shown;

[0023] Figure 15 A schematic diagram showing another circuit structure of a driving circuit in a display panel provided in an embodiment of the present application is shown;

[0024] Figure 16 A schematic diagram showing another circuit structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0025] Figure 17 Show Figure 16 A timing diagram of

[0026] Figure 18 A schematic diagram showing a top view of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0027] Figure 19 Another schematic diagram of a top view structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0028] Figure 20 A schematic diagram showing another top view structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0029] Figure 21 A schematic diagram illustrating another architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0030] Figure 22 A schematic diagram illustrating another architecture of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0031] Figure 23 A schematic diagram showing another top view structure of a sub-pixel group in a display panel provided by an embodiment of the present application is shown;

[0032] Figure 24 A schematic diagram showing a top view of a pixel unit in a display panel provided by an embodiment of the present application is shown;

[0033] Figure 25 A schematic structural diagram of a display device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0034] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0036] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" the other layer or region.

[0037] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0038] In the embodiments of the present application, the term “electrically connected” may refer to a direct electrical connection between two components, or may refer to an electrical connection between two components via one or more other components.

[0039] It will be apparent to those skilled in the art that various modifications and variations can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application can be combined with each other without contradiction.

[0040] Embodiments of the present application provide a display panel and a display device. Various embodiments of the display panel and the display device will be described below with reference to the accompanying drawings.

[0041] Figure 1 A schematic structural diagram of a display panel provided in an embodiment of the present application is shown. Figures 2 to 5 Some structural schematic diagrams of sub-pixel groups in a display panel provided by an embodiment of the present application are shown.

[0042] Please refer to Figures 1 to 5 The display panel 100 provided in the embodiment of the present application includes a sub-pixel group 10, and the sub-pixel group 10 includes n driving circuits 11 and m light-emitting elements. The output ends of the n driving circuits 11 are electrically connected to the m light-emitting elements.

[0043] The m light-emitting elements include n first light-emitting elements D1 and i second light-emitting elements D2. The output ends of the n driving circuits 11 are electrically connected to the n first light-emitting elements D1 in a one-to-one correspondence, and the output end of at least one driving circuit 11 is electrically connected to the second light-emitting element D2 through the interpolation unit 12. The second light-emitting element D2 is electrically connected to the compensation unit 13, n+i=m, m, n, i are all integers greater than 0, the interpolation unit 12 is used to transmit the driving signal from the driving circuit 11 to the second light-emitting element D2, and the compensation unit 13 is used to compensate the driving signal to the second light-emitting element D2.

[0044] For example, Figure 1 As shown, a plurality of sub-pixel groups 10 in the display panel are arranged in an array along a first direction X and a second direction Y that intersect.

[0045] The driving circuit 10 is used to drive the light emitting element to emit light. Exemplarily, the driving circuit 10 provides a driving current to the light emitting element to which it is electrically connected, thereby driving the light emitting element to emit light.

[0046] It is understood that within the same sub-pixel group 10, the number n of driving circuits 11 is less than the number m of light-emitting elements, where m is the sum of the number of first and second light-emitting elements. Within the same sub-pixel group 10, n driving circuits 11 are shared by m light-emitting elements, enabling a smaller number of driving circuits to drive a larger number of light-emitting elements. Given a given display panel size, a larger number of light-emitting elements can be provided, thereby improving display resolution.

[0047] As an example, Figure 2 As shown, in the same sub-pixel group 10, the number of the driving circuit 11 is 1, and the number of the first light-emitting element D1 and the second light-emitting element D2 are both 1. In this example, one driving circuit 11 is used to drive two light-emitting elements.

[0048] As another example, Figure 3 As shown, in the same sub-pixel group 10, the number of the driving circuit 11 is 1, the number of the first light-emitting element D1 is 1, and the number of the second light-emitting element D2 is 2. In this example, one driving circuit 11 is used to drive three light-emitting elements.

[0049] As another example, Figure 4 As shown, in the same sub-pixel group 10 , the number of driving circuits 11 is 2, the number of first light-emitting elements D1 is 2, and the number of second light-emitting elements D2 is 1. In this example, two driving circuits 11 are used to drive three light-emitting elements.

[0050] As another example, Figure 5 As shown, in the same sub-pixel group 10 , the number of driving circuits 11 is 4, the number of first light-emitting elements D1 is 4, and the number of second light-emitting elements D2 is 1. In this example, the four driving circuits 11 are used to drive five light-emitting elements.

[0051] certainly, Figures 2 to 5 These are just some examples and are not intended to limit this application.

[0052] like Figures 2 to 5 As shown, within the same subpixel group 10, the number of driver circuits 11 is equal to the number of first light-emitting elements D1. No interpolation unit is connected between the output of the driver circuit 11 and the first light-emitting element D1, while an interpolation unit 12 is connected between the output of the driver circuit 11 and the second light-emitting element D2. This can be understood as: the driver circuit 11 directly drives the first light-emitting element D1, and then drives the second light-emitting element D2 after passing through the interpolation unit 13. "Interpolation" can be understood as shunting the drive current generated by the driver circuit 11 and transmitting the shunted current to the second light-emitting element D2.

[0053] Exemplarily, when a second light-emitting element D2 is electrically connected to a plurality of driving circuits 11 , an interpolation unit 12 is connected between each of the second light-emitting element D2 and the plurality of driving circuits 11 .

[0054] For example, Figure 4 As shown, an interpolation unit 12 is connected between each second light-emitting element D2 and two driving circuits 11. In this example, the two interpolation units 12 respectively divide the driving current generated by the two driving circuits 11. The current divided by one interpolation unit 12 is I1, and the current divided by the other interpolation unit 12 is I2. The total current obtained by the second light-emitting element D2 is I1+I2.

[0055] Or, as Figure 5 As shown, an interpolation unit 12 is connected between each of the second light emitting element D2 and the four driving circuits 11. In this example, the four interpolation units 12 respectively divide the driving current generated by the four driving circuits 11, and the division currents of the four interpolation units 12 are I 11 , I 12 , I 13 , I 14 , the total current obtained by the second light emitting element D2 is I 11 +I 12 +I 13 +I 14 .

[0056] When the driving circuit is reused by the first light-emitting element and the second light-emitting element, when the second light-emitting element needs to emit light at high brightness, it is easy to cause insufficient driving signal allocated to the second light-emitting element. In severe cases, the light-emitting element may even be unable to be driven, resulting in problems such as poor display uniformity.

[0057] To address this, in the embodiment of the present application, a compensation unit 13 is further provided to compensate the driving signal to the second light-emitting element D2.

[0058] Exemplarily, the compensation unit 13 is configured to provide a compensation current to the second light-emitting element D2. For example, when the current divided by the interpolation unit 12 from the driving circuit 11 is insufficient to meet the brightness requirement of the second light-emitting element D2, the compensation unit 13 is activated to provide the compensation current to the second light-emitting element D2. The current interpolated by the interpolation unit 12 and the current compensated by the compensation unit 13 jointly drive the second light-emitting element D2 to meet the brightness requirement of the second light-emitting element D2.

[0059] According to the display panel provided in the embodiment of the present application, n driving circuits are used to drive m light-emitting elements, where n is less than m, thereby reducing the number of driving circuits and enabling more light-emitting elements to be arranged in a limited space, thereby improving the display resolution of the display panel; in addition, the compensation unit is used to compensate the driving signal to the second light-emitting element, and the driving signal obtained by the interpolation unit from the driving circuit and the compensation signal provided by the compensation unit jointly drive the second light-emitting element to meet the brightness requirement of the second light-emitting element, thereby ensuring the normal light-emitting ability of the light-emitting element while improving the display resolution.

[0060] In some embodiments, within the same sub-pixel group, the number i of the second light-emitting elements is greater than or equal to the number n of the driving circuits.

[0061] As an example, Figure 2 As shown, within the same sub-pixel group 10, the number of second light-emitting elements D2 is equal to the number of driving circuits 11. In this example, one driving circuit 11 is shunted by one second light-emitting element D2.

[0062] As another example, Figure 3 As shown, within the same sub-pixel group 10, the number of second light-emitting elements D2 is greater than the number of driving circuits 11. In this example, one driving circuit 11 is divided by two second light-emitting elements D2.

[0063] Of course, in other examples, one driving circuit 11 is divided into three, four or even more second light-emitting elements D2.

[0064] In this embodiment, it is designed that one driving circuit is shunted by one or more second light-emitting elements. More second light-emitting elements can be arranged in a limited space to improve the display resolution.

[0065] In some embodiments, when a driving circuit is shunted by multiple second light-emitting elements, the output end of at least one driving circuit is electrically connected to the multiple second light-emitting elements through the same interpolation unit; or, at least two second light-emitting elements are each electrically connected to the output end of the same driving circuit through a different interpolation unit.

[0066] For example, Figure 3 As shown, a driving circuit 11 is divided by two second light-emitting elements D2, and the driving circuit 11 is electrically connected to the two second light-emitting elements D2 through the same interpolation unit 12. The driving current divided from the driving circuit 11 by the interpolation unit 12 can flow to the two second light-emitting elements D2.

[0067] Or, as Figure 6As shown, a driving circuit 11 is divided by two second light-emitting elements D2. The driving circuit 11 is electrically connected to one of the second light-emitting elements D2 through an interpolation unit 12, and the driving circuit 11 is electrically connected to the other second light-emitting element D2 through another interpolation unit 12. The two interpolation units 12 respectively divide the driving current from the driving circuit 11, and the driving currents divided by the two interpolation units 12 are the same or different.

[0068] In this embodiment, multiple second light-emitting elements are electrically connected to the same driver circuit via the same interpolation unit. Sharing this interpolation unit reduces the number of interpolation units and further improves display resolution. At least two second light-emitting elements are each electrically connected to the output of the same driver circuit via a different interpolation unit. The current splitting of each interpolation unit can be individually adjusted to meet the brightness requirements of different second light-emitting elements.

[0069] In some other embodiments, within the same sub-pixel group, the number i of the second light-emitting elements is less than the number n of the driving circuits.

[0070] As an example, Figure 4 As shown, within the same sub-pixel group 10, the number of second light-emitting elements D2 is less than the number of driving circuits 11. In this example, two driving circuits 11 are divided by one second light-emitting element D2.

[0071] As another example, Figure 5 As shown, within the same sub-pixel group 10, the number of second light-emitting elements D2 is less than the number of driving circuits 11. In this example, four driving circuits 11 are divided by one second light-emitting element D2.

[0072] In this embodiment, it is designed that multiple driving circuits are divided by one second light-emitting element, and the driving current of the second light-emitting element is the sum of the currents of the multiple driving circuits divided by the interpolation unit. This makes it easier to meet the brightness requirements of the second light-emitting element.

[0073] In some embodiments, when multiple driving circuits are shunted by one second light-emitting element, at least one second light-emitting element is electrically connected to output terminals of different driving circuits through different interpolation units.

[0074] For example, Figure 4 As shown, two driving circuits 11 are divided by a second light-emitting element D2, one driving circuit 11 is electrically connected to the second light-emitting element D2 via an interpolation unit 12, and the other driving circuit 11 is electrically connected to the second light-emitting element D2 via another interpolation unit 12. The two interpolation units 12 respectively converge the driving currents divided from the two driving circuits 11 and flow them to the second light-emitting element D2.

[0075] For example, Figure 5 As shown, four driving circuits 11 are divided by a second light-emitting element D2, and the four driving circuits 11 are electrically connected to the second light-emitting element D2 through four interpolation units 12. The four interpolation units 12 converge the driving currents divided from the four driving circuits 11 and flow them to the second light-emitting element D2.

[0076] In this embodiment, a second light-emitting element is electrically connected to the output ends of different driving circuits through different interpolation units, so that the current divided by each interpolation unit from each driving circuit can flow to the second light-emitting element, avoiding short circuit between the output ends of multiple driving circuits, thereby ensuring normal driving of the first light-emitting element and the second light-emitting element.

[0077] In some embodiments, whether one driving circuit is shunted by multiple second light-emitting elements, or multiple driving circuits are shunted by one second light-emitting element, it can be designed as follows: at least the same compensation unit is electrically connected to multiple second light-emitting elements; or, at least two second light-emitting elements are each electrically connected to a different compensation unit.

[0078] For example, Figure 3 As shown, the same compensation unit 13 is electrically connected to the two second light-emitting elements D2 , and the compensation unit 13 can compensate for the two second light-emitting elements D2 electrically connected thereto.

[0079] Or, as Figure 6 As shown, the two second light-emitting elements D2 are respectively electrically connected to different compensation units 13, and each compensation unit 13 compensates the second light-emitting element D2 electrically connected thereto.

[0080] It is understood that when multiple second light-emitting elements share a single compensation unit, the total number of compensation units in the display panel can be reduced, which is beneficial for improving display resolution. When different second light-emitting elements are electrically connected to different compensation units, fine compensation can be achieved for different second light-emitting elements, thereby improving the display effect of each second light-emitting element.

[0081] It should be noted that Figures 2 to 6 Only some examples of n driving circuits driving m light-emitting elements are shown, where n is less than m. These examples are not intended to limit the present application. For example, the number of light-emitting elements in a sub-pixel, the number of driving circuits, the connection method of the interpolation unit, the connection method of the compensation unit, etc. may be different. Figures 2 to 6 Example shown.

[0082] The structures of the interpolation unit and the compensation unit are exemplarily introduced below.

[0083] In some embodiments, as Figure 7As shown, the interpolation unit 12 includes a first transistor M1, a first electrode of the first transistor M1 is electrically connected to the output end of the driving circuit 11, a second electrode of the first transistor M1 is electrically connected to the second light-emitting element D2, and a gate of the first transistor M1 is connected to the first control signal Ex.

[0084] Taking the first transistor M1 as a P-type transistor as an example, when the first control signal Ex is at a low level, the first transistor M1 is turned on, connecting the output end of the driving circuit 11 to the second light-emitting element D2. At least part of the driving current at the output end of the driving circuit 11 can be transmitted to the second light-emitting element D2 through the first transistor M1, thereby driving the second light-emitting element D2 to emit light. When the first control signal Ex is at a high level, the first transistor M1 is turned off, disconnecting the output end of the driving circuit 11 from the second light-emitting element D2, and the second light-emitting element D2 does not emit light.

[0085] In some embodiments, the first control signal Ex is the same as the light emitting control signal Emit input to the driving circuit 11 .

[0086] For example, Figure 7 For example, the structure of the driving circuit 11 is a "7T1C" structure, and the light emission control signal Emit is used to control the transistor M11 and the transistor M16. Of course, the structure of the driving circuit 11 is not limited to the "7T1C" structure. For example, it can also be an "8T1C", "8T2C", "13T2C", etc. "7T1C" means that the driving circuit includes 7 transistors and 1 capacitor. The same applies to other "8T1C", "8T2C", "13T2C", etc.

[0087] The following combination Figure 7 and Figure 8 , introduces the working process of the sub-pixel group:

[0088] In phase t11 , the scan signal S1 controls the transistor M5 to turn on, and the reset signal Vref is written into the gate of the driving transistor M3 and the lower plate of the storage capacitor Cst to initialize the gate of the driving transistor M3 and the storage capacitor Cst.

[0089] At stage t12, scan signal S2 turns on transistors M2, M4, and M7, writes data signal Vdata to the gate of drive transistor M3, and transistor M4 compensates for the threshold voltage of drive transistor M3. Furthermore, reset signal Vref is written to the anode of first light-emitting element D1, resetting the anode of first light-emitting element D1.

[0090] At stage t13, the emission control signal Emit turns on transistors M1 and M6. The first control signal Ex is the same as the emission control signal Emit. The first control signal Ex turns on the first transistor M1, and the drive current generated by the driver circuit 11 drives the first light-emitting element D1 to emit light normally. The drive current generated by the driver circuit 11 is transmitted to the second light-emitting element D2 through the first transistor M1, causing the second light-emitting element D2 to emit light. If the drive current transmitted by the first transistor M1 is insufficient to meet the brightness requirement of the second light-emitting element D2, the compensation unit 13 can be activated to perform current compensation on the second light-emitting element D2 so that the total drive current meets the brightness requirement of the second light-emitting element D2.

[0091] When the first control signal Ex is the same as the light emitting control signal Emit, the driving circuit 11 can drive the first light emitting element D1 and the second light emitting element D2 to emit light simultaneously.

[0092] In some other embodiments, the first control signal Ex and the light emitting control signal Emit are independent of the light emitting control signal Emit, so that the opening degree of the first transistor M1 can be controlled by adjusting the first control signal Ex, thereby adjusting the current transmitted by the first transistor to the second light emitting element.

[0093] When the driving current output by the driving circuit is constant, the greater the degree of opening of the first transistor, the greater the current transmitted by the first transistor to the second light-emitting element, that is, the more shunt the second light-emitting element obtains; conversely, the smaller the degree of opening of the first transistor, the smaller the current transmitted by the first transistor to the second light-emitting element, that is, the less shunt the second light-emitting element obtains.

[0094] In some embodiments, the compensation unit 13 includes a resistor R, one end of the resistor R is electrically connected to the compensation voltage terminal CA, and the other end of the resistor R is electrically connected to the second light-emitting element D2.

[0095] When the second light-emitting element D2 needs to be compensated, the voltage of the compensation voltage terminal CA is greater than the voltage of the common voltage terminal PVEE, and a current is generated on the path between the compensation voltage terminal CA, the resistor R, and the second light-emitting element D2. This current is the current that the compensation unit 13 uses to compensate the second light-emitting element D2.

[0096] In some embodiments, at least one of the resistance value of the resistor R of the compensation unit 13 and the voltage value of the compensation voltage terminal CA is adjustable.

[0097] For example, the resistance value of the resistor R is adjustable, and the voltage at the compensation voltage terminal CA is a constant voltage. The current compensated by the compensation unit 13 to the second light-emitting element D2 is adjusted by adjusting the resistance value of the resistor R. When the voltage at the compensation voltage terminal CA is constant, the larger the resistance value of the resistor R, the smaller the compensation current value; conversely, the smaller the resistance value of the resistor R, the larger the compensation current value.

[0098] For another example, the resistance value of resistor R is fixed, and the voltage value of compensation voltage terminal CA is adjustable. By adjusting the voltage value of compensation voltage terminal CA, the current compensated by compensation unit 13 for second light-emitting element D2 is adjusted. When the resistance value of resistor R is constant, the larger the voltage value of compensation voltage terminal CA, the larger the compensation current value; conversely, the smaller the voltage value of compensation voltage terminal CA, the smaller the compensation current value.

[0099] For another example, the resistance value of the resistor R is adjustable, and the voltage value of the compensation voltage terminal CA is adjustable. By adjusting the resistance value of the resistor R and the voltage value of the compensation voltage terminal CA, the current size of the second light-emitting element D2 compensated by the compensation unit 13 is realized.

[0100] In this embodiment, at least one of the resistance value of the resistor R and the voltage value of the compensation voltage terminal CA is adjustable, so that the magnitude of the compensation current can be adjusted to achieve fine compensation.

[0101] In some embodiments, when the second light-emitting element does not require compensation, the resistance value of the resistor R is adjustable, and the resistance value of the resistor is infinite, and / or when the second light-emitting element does not require compensation and the voltage value of the compensation voltage terminal is adjustable, the compensation voltage terminal does not output a voltage. The fact that the compensation voltage terminal does not output a voltage can be understood as the compensation voltage terminal being floating.

[0102] The situation where the second light-emitting element does not need to be compensated includes: the current obtained by the second light-emitting element from the interpolation unit meets its brightness requirement, and / or the second light-emitting element does not need to emit light.

[0103] In this embodiment, when the second light-emitting element does not need to be compensated, the resistance value of the resistor is infinite, and / or the compensation voltage terminal does not output a voltage, and the compensation function of the compensation unit is turned off to avoid unnecessary compensation of the second light-emitting element by the compensation unit.

[0104] Exemplarily, when the shut-off capability of the second light-emitting element is insufficient, the compensation voltage terminal CA is at a negative level, so that the second light-emitting element can achieve a better black state.

[0105] In some embodiments, as Figure 9As shown, the compensation unit 13 further includes a second transistor M2, which is connected in series with a resistor R. The second transistor M2 is electrically connected between the resistor R and the compensation voltage terminal CA, or the second transistor M2 is electrically connected between the resistor R and the second light-emitting element D2. The gate of the second transistor M2 is connected to the second control signal Ey. For example, the second transistor M2 is a P-type transistor. When the second control signal Ey is at a low level, the second transistor M2 is turned on. In this case, the compensation unit can compensate the second light-emitting element; when the second control signal Ey is at a high level, the second transistor M2 is turned off. In this case, the compensation unit cannot compensate the second light-emitting element.

[0106] In this embodiment, a second transistor is provided, and by controlling the state of the second transistor, it is possible to realize whether to start the compensation function of the compensation unit.

[0107] It should be noted that although Figure 7 and Figure 9 The structure of the interpolation unit and the compensation unit is introduced as an example. The specific structure of the interpolation unit and the compensation unit introduced in the above example can be applied to Figures 2 to 6 In any architecture.

[0108] Exemplarily, the light-emitting element includes a micro light-emitting diode (microLED), a mini light-emitting diode (Mini LED), or an organic light-emitting diode (OLED).

[0109] As an example, Figure 10 As shown, the driving circuit includes a pulse amplitude modulation (PAM) subcircuit and a pulse width modulation (PWM) subcircuit to control the driving current intensity and the duration of the driving current to control the luminous state of the light-emitting element.

[0110] The PAM subcircuit and the PWM subcircuit are connected. The driving circuit generates a driving current under the control of the PAM subcircuit and the PWM subcircuit. The PAM subcircuit is used to control the amplitude of the driving current, and the PWM subcircuit is used to adjust the pulse width of the voltage applied to the first electrode of the light-emitting element.

[0111] The PWM sub-circuit adjusts the pulse width of the voltage applied to the first electrode of the light-emitting element. That is, the PWM sub-circuit adjusts the actual emission period of the drive current applied to the light-emitting element, while maintaining the drive current applied to the light-emitting element at a constant level to adjust the grayscale or brightness displayed by the light-emitting element, rather than simply adjusting the magnitude of the drive current applied to the light-emitting element. Therefore, the PAM sub-circuit can provide the drive current to the light-emitting element so that the light-emitting element is driven with optimal luminous efficiency, and the PWM sub-circuit adjusts the light-emitting duty cycle of the light-emitting element (that is, the emission period of the light-emitting element) to adjust the grayscale or brightness displayed by the light-emitting element.

[0112] like Figure 10 As shown, the interpolation unit includes a first transistor T1, and the compensation unit includes a resistor R. The resistor R is electrically connected between the compensation voltage terminal CA and the second light-emitting element D2.

[0113] The following combination Figure 10 and Figure 11 , introduce the working process of sub-pixels:

[0114] In stage t21, the scan signal S1 controls the transistors M7 and M14 to turn on, and the reset signal Vref resets the anodes of the first light-emitting element D1 and the second light-emitting element D2; at the same time, the scan signal S1 controls the transistors M5 and M12 to turn on, and the reset signal Vref is written to the nodes N1 and N2 to initialize the gates of the driving transistors M10 and M3.

[0115] In stage t22, the scan signal S2 controls the transistors M2 and M4 to be turned on, the data signal DATA1 is written to the node N1, and the transistor M4 compensates for the threshold voltage of the driving transistor. The potential of the node N1 is equal to DATA1+Vth(M3), and the write capacitor C1 is stored. At the same time, the scan signal S2 controls the transistors M9 and M11 to be turned on, the data signal DATA2 is written to the node N2, the transistor M11 compensates for the threshold voltage of the driving transistor M10, the potential of the node N2 is equal to DATA2+Vth(M10), and the write capacitor C2 is stored.

[0116] In stage t23, the first light emission control signal EM1, the second light emission control signal EM2, and the first control signal EX are at low level, transistors M8 / M13 / M1 / M6 / T1 are turned on, and Vgs(M10) of driving transistor M10 = Vsweep - VDD2. Under the coupling effect of capacitor C2, sweep linearly decreases from high level to low level, driving transistor M10 to be gradually turned on until node N1 = PVDD2. At the same time, Vgs(M3) of driving transistor M3 = N1 - PVDD1 = PVDD2 - PVDD1, driving transistor M3 to be turned on, and the first light-emitting element D1 emits light. As PVDD2 increases, Vgs(M3) < Vth, driving transistor M3 turns off, and the first light-emitting element D1 does not emit light, that is, it enters the black state. During this process, when driving transistor M3 is turned on, the driving current also flows through the first transistor T1 to the second light-emitting element D2, and the second light-emitting element D2 emits light. When the current intensity obtained by the second light-emitting element D2 from the first transistor T1 is insufficient, the current can be increased through the compensation unit. When driving transistor M3 turns off, the second light-emitting element D2 turns off. When the turning-off ability is insufficient, the compensation signal terminal CA can be adjusted to a negative level to enable the second light-emitting element D2 to achieve a better black state.

[0117] It can be understood that Figure 7 、 Figure 9 and Figure 10 The example shown corresponds to Figure 2 the architecture shown, that is: one driving circuit drives one first light-emitting element and one second light-emitting element.

[0118] In some other embodiments, the specific circuit structure of the sub-pixel group can also be as shown in Figure 12 or Figure 13 It can be understood that Figure 12 、 Figure 13 The example shown corresponds to Figure 2 the architecture shown, that is: one driving circuit drives two first light-emitting elements and one second light-emitting element. Additionally, Figure 12 and Figure 13 In

[28] , the second light-emitting element D2 is electrically connected to different driving circuits 11 through different first transistors T1, and the compensation unit 13 includes a second transistor T2 connected in series with a resistor R, and the second control signal Ey and the first control signal Ex can be the same.

[0119] It should be noted that when the driving circuit 11 includes a PAM sub-circuit and a PWM sub-circuit, the circuit structure of the driving circuit 11 can also be as shown in Figure 14 or Figure 15 the example shown. Additionally, the scan signals S1\S2, light emission control signals, reset signals, etc. accessed by the PAM sub-circuit and the PWM sub-circuit can also be different.

[0120] In some embodiments, please refer to Figure 16 and Figure 17 The output terminal of the driving circuit is electrically connected to the first light-emitting element D1 via the third transistor T3. A refresh frame of the display panel includes at least a first subframe F1 and a second subframe F2. In the first subframe F1, the third transistor T3 is turned on and the interpolation unit 12 is turned off. In the second subframe F2, the third transistor T3 is turned off and the interpolation unit 12 is turned on.

[0121] Exemplarily, the third transistor T3 is controlled by a scan signal S3. During the light-emitting phase of the first subframe F1, the scan signal S3 is at a low level, turning on the third transistor T3. During the non-light-emitting phase of the first subframe F1, the scan signal S3 is at a high level, turning off the third transistor T3. During the second subframe F2, the scan signal S3 remains at a high level.

[0122] When the third transistor T3 is turned on, the driving current output by the driving circuit can be transmitted to the first light-emitting element D1 to drive the first light-emitting element D1 to emit light.

[0123] The interpolation unit 12 includes a first transistor T1, which is controlled by a first control signal Ex. During the light-emitting phase of the second subframe F2, the first control signal Ex is at a low level, turning on the first transistor T1. During the non-light-emitting phase of the second subframe F2, the first control signal Ex is at a high level, turning off the first transistor T1. During the first subframe F1, the first control signal Ex remains at a high level.

[0124] When the first transistor T1 is turned on, the driving current output by the driving circuit can be transmitted to the second light-emitting element D2 to drive the second light-emitting element D2 to emit light.

[0125] In this embodiment, the driving circuit drives the first light emitting element and the second light emitting element in a time-sharing manner, which easily satisfies the brightness requirements of the first light emitting element and the second light emitting element.

[0126] It should be noted that the first light emitting element is electrically connected to the output end of the driving circuit through the third transistor and is not limited to Figure 16 The circuit structure shown in Figures 2 to 7 , Figures 9 and 10 , Figures 12 to 15 In any circuit structure shown in any of the drawings, a third transistor may be added between the output end of the driving circuit and the first light-emitting element.

[0127] In some embodiments, the display panel includes a plurality of sub-pixel groups, and the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is the same.

[0128] The connection relationship between the driving circuit and the light-emitting elements in the sub-pixel groups includes: a connection relationship between the driving circuit and the first light-emitting element and the second light-emitting element. The connection relationship between the driving circuit and the light-emitting elements in two sub-pixel groups being the same includes: an equal number of driving circuits in the two sub-pixel groups, an equal number of first light-emitting elements in the two sub-pixel groups, an equal number of second light-emitting elements in the two sub-pixel groups, and a one-to-one correspondence between the driving circuits and the first light-emitting elements in the two sub-pixel groups, and an equal number of driving circuits connected to the second light-emitting elements in the two sub-pixel groups.

[0129] For example, the connection relationship between the driving circuit and the light emitting element in each sub-pixel group is as follows: Figure 2 Alternatively, the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is as follows: Figure 3 Alternatively, the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is as follows: Figure 4 Alternatively, the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is as follows: Figure 5 Alternatively, the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is as follows: Figure 6 shown.

[0130] In this embodiment, the connection relationship between the driving circuit and the light-emitting element of each sub-pixel group is the same, which is easier to implement in layout design and avoids increasing the difficulty of the process.

[0131] In other embodiments, the sub-pixel group of the display panel includes at least a first sub-pixel group and a second sub-pixel group, and the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is different from the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group.

[0132] For example, the connection relationship between the driving circuit and the light emitting element in the first sub-pixel group is as follows: Figures 2 to 6 As shown in any of the figures in FIG. 1 , the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is as follows Figures 2 to 6 As shown in any other figure in the figure.

[0133] For example, the connection relationship between the driving circuit and the light emitting element in the first sub-pixel group is as follows: Figure 2 As shown, the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group is as follows Figure 3 Alternatively, the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is as follows: Figure 4 As shown, the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group is as follows Figure 5 Alternatively, the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is as follows: Figure 2 As shown, the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group is as follows Figure 6 shown.

[0134] In this embodiment, the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is different from the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group, which facilitates flexible design according to different brightness requirements.

[0135] In some embodiments, the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group and the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel are different, including: the number of first light-emitting elements in the first sub-pixel group and the number of first light-emitting elements in the second sub-pixel group are different, and / or, the number of second light-emitting elements in the first sub-pixel group and the number of second light-emitting elements in the second sub-pixel are different, and / or, the number of interpolation units in the first sub-pixel group and the number of interpolation units in the second sub-pixel are different, and / or, the number of compensation units in the first sub-pixel group and the number of compensation units in the second sub-pixel are different.

[0136] The number of driving circuits and the number of first light-emitting elements in the same sub-pixel group are the same. Therefore, the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is different from the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group, including: the number of driving circuits in the first sub-pixel group and the second sub-pixel group is different.

[0137] For example, the first sub-pixel group is as follows Figure 2 The sub-pixel group shown in FIG. 1 and the second sub-pixel group are as shown in FIG. Figure 3 The sub-pixel group shown, Figure 2 The number of the first light-emitting elements and Figure 3 The number of first light emitting elements is the same, but Figure 2 The number of the second light emitting elements and Figure 3 The number of second light-emitting elements is the same.

[0138] For another example, the first sub-pixel group is as follows Figure 4 The sub-pixel group shown in FIG. 1 and the second sub-pixel group are as shown in FIG. Figure 5 The sub-pixel group shown, Figure 4 The number of the first light-emitting elements and Figure 5 The number of the first light-emitting elements is different, Figure 4 The number of the second light emitting elements and Figure 5 The number of second light-emitting elements is the same.

[0139] For another example, the first sub-pixel group is as follows Figure 3 The sub-pixel group shown in FIG. 1 and the second sub-pixel group are as shown in FIG. Figure 6 The sub-pixel group shown, Figure 3 The number of the first light-emitting elements and Figure 6 The number of the first light-emitting elements is the same, Figure 3 The number of the second light emitting elements and Figure 6The number of the second light-emitting elements is the same, Figure 3 The number of interpolation units and Figure 6 The number of interpolation units is different. Figure 3 The number of compensation units and Figure 6 The number of compensation units is different.

[0140] In some embodiments, Figure 18 For example, in the same sub-pixel group 10, the first light-emitting element D1 and the second light-emitting element D2 are adjacent to each other. The first light-emitting element D1 and the second light-emitting element D2 need to be electrically connected to the same driving circuit. When the first light-emitting element D1 and the second light-emitting element D2 are adjacent to each other, the length of the connecting wires between the first light-emitting element D1 and the second light-emitting element D2 and the driving circuit can be avoided to be too long.

[0141] In the same sub-pixel group 10, the driving circuit 11 and the first light-emitting element D1 correspond to each other one by one. Exemplarily, the orthographic projections of the electrically connected driving circuit 11 and the first light-emitting element D1 on the plane where the display panel is located at least partially overlap. For example, Figure 18 In the example, the first driver circuit 11_1 is electrically connected to the first first light-emitting element D1_1, and their orthographic projections on the plane of the display panel at least partially overlap. For another example, the second driver circuit 11_2 is electrically connected to the second first light-emitting element D1_2, and their orthographic projections on the plane of the display panel at least partially overlap. Proximity between the electrically connected first light-emitting element and the driver circuit can shorten the length of the connecting wire between them. Proximity between the electrically connected first light-emitting element and the driver circuit can shorten the length of the connecting wire between them.

[0142] In some embodiments, as Figure 19 As shown, the subpixel group 10 includes a third subpixel group 10c. In the third subpixel group 10c, the number i of second light-emitting elements D2 is greater than the number n of driving circuits 11. The number of driving circuits 11 is the same as the number of first light-emitting elements D1. Therefore, in the third subpixel group 10c, the number of second light-emitting elements D2 is greater than the number of first light-emitting elements D1. In the third subpixel group 10c, i second light-emitting elements D2 are arranged around n first light-emitting elements D1.

[0143] Figure 19For example, in the third subpixel group 10c, which includes one driver circuit 11, one first light-emitting element D1, and four second light-emitting elements D2, the four second light-emitting elements D2 are arranged around one first light-emitting element D1. Exemplarily, the orthographic projections of the electrically connected driver circuit 11 and first light-emitting element D1 in the third subpixel group 10c on the plane of the display panel at least partially overlap. This ensures that the distance between the four second light-emitting elements D2 and the driver circuit 11 is not too far, thus preventing the connecting wires between the second light-emitting elements D2 and the driver circuit 11 from being too long.

[0144] and / or, such as Figure 20 As shown, subpixel group 10 includes a fourth subpixel group 10d. For fourth subpixel group 10d, the number i of second light-emitting elements D2 is less than the number n of driving circuits 11. The number of driving circuits 11 is the same as the number of first light-emitting elements D1. Therefore, the number of second light-emitting elements D2 in fourth subpixel group 10d is less than the number of first light-emitting elements D1. The n first light-emitting elements D1 in fourth subpixel group 10d are arranged around the i second light-emitting elements D2.

[0145] Figure 20 For example, in a fourth subpixel group 10d comprising four drive circuits 11, four first light-emitting elements D1, and one second light-emitting element D2, the four first light-emitting elements D1 are arranged around the one second light-emitting element D2. Exemplarily, the orthographic projections of the electrically connected drive circuits 11 and first light-emitting elements D1 in the fourth subpixel group 10d on the plane of the display panel at least partially overlap. This ensures that the distance between the four drive circuits 11 and the second light-emitting element D2 is not too far, thus preventing the connecting wires between the second light-emitting element D2 and the drive circuits 11 from being excessively long.

[0146] In some embodiments, as Figure 21 As shown, the second light-emitting element includes a first type light-emitting element D21 and a second type light-emitting element D22. The first type light-emitting element D21 is electrically connected to j driving circuits 11, and the second type light-emitting element D22 is electrically connected to k driving circuits 11, j≠k, j and k are both integers greater than 0, and at least one driving circuit 11 is electrically connected to the first type light-emitting element D21 and the second type light-emitting element D22 at the same time.

[0147] For example, the first-type light-emitting element D21 is electrically connected to j driver circuits 11 via j interpolation units. The j interpolation units shunt the driving current output by the j driver circuits 11. The shunt currents obtained by the j interpolation units are then combined to drive the first-type light-emitting element D21. In other words, the first-type light-emitting element D21 is driven by the j driver circuits 11 after the interpolation and shunting.

[0148] The second type of light-emitting element D22 is connected to k driving circuits 11 through k interpolation units. The k interpolation units divide the driving current output by the k driving circuits 11. The divided currents obtained by the k interpolation units are then combined to drive the second type of light-emitting element D22. In other words, the second type of light-emitting element D22 is driven by the interpolated and divided currents of the k driving circuits 11.

[0149] In addition, at least one driving circuit 11 is used to drive both the first-type light-emitting element D21 and the second-type light-emitting element D22.

[0150] In this embodiment, a hybrid interpolation shunt design is adopted, which not only allows fewer driving circuits to drive more second light-emitting elements, but also the number of driving circuits electrically connected to the second type of light-emitting elements is larger, and the shunt obtained by the second type of light-emitting elements can more easily meet their brightness requirements.

[0151] As an example, j=2, k=4.

[0152] In this example, a sub-pixel group includes 4 driving circuits, 4 first light-emitting elements, 1 second light-emitting element and 4 first light-emitting elements. The 4 driving circuits are used to drive 9 light-emitting elements, which can not only reduce the number of required driving circuits, but also drive one first-class light-emitting element after every 2 driving circuits are interpolated, and drive one second-class light-emitting element after every 4 driving circuits are interpolated. This distribution method can ensure the luminous effect of each light-emitting element.

[0153] For example, Figure 21 As shown, the compensation unit 13 and the second light emitting element can be connected in a one-to-one correspondence. Alternatively, as shown Figure 22 As shown, the compensation unit 13 is connected to the plurality of second light-emitting elements, and the compensation unit 13 compensates the plurality of second light-emitting elements.

[0154] In some embodiments, when j=2 and k=4, as shown in FIG. Figure 23 As shown, for example, the first direction X is the row direction, the second direction Y is the column direction, the sub-pixel group includes four first light-emitting elements D1, four first-type light-emitting elements D21 and one second-type light-emitting element D22, and the light-emitting elements in the sub-pixel group are arranged in 3 rows and 3 columns, and the second-type light-emitting element D22 is located at the center of the sub-pixel group.

[0155] Illustratively, in the first direction X, there is a first light emitting element D1 on each side of the first type light emitting element D21; and in the second direction Y, there is a first light emitting element D1 on each side of the first type light emitting element D21.

[0156] The sub-pixel group includes four driving circuits. For ease of explanation, Figure 23In the figure, the four driving circuits are labeled 11a, 11b, 11c, and 11d, respectively, and the four first-type light-emitting elements are labeled D21_ab, D21_ac, D21_bd, and D21_cd, respectively. The four driving circuits 11a, 11b, 11c, and 11d are electrically connected to the four first light-emitting elements D1 in a one-to-one correspondence. Driving circuits 11a and 11b are used to drive first-type light-emitting elements D21_ab, driving circuits 11a and 11c are used to drive first-type light-emitting elements D21_ac, driving circuits 11d and 11b are used to drive first-type light-emitting elements D21_bd, and driving circuits 11c and 11d are used to drive first-type light-emitting elements D21_cd. The four driving circuits 11a, 11b, 11c, and 11d are used to drive second-type light-emitting elements D22.

[0157] It can be understood that the first type of light emitting elements D21_ab, D21_ac, D21_bd, and D21_cd correspond to a bisection interpolation design, and the second type of light emitting element D22 corresponds to a quadrisection interpolation design.

[0158] For example, the driving currents generated by the four driving circuits 11a, 11b, 11c, and 11d are Ia, Ib, Ic, and Id, respectively. Half of the current of each driving circuit is interpolated by the first type of light-emitting element, and one quarter of the current of each driving circuit is interpolated by the second type of light-emitting element. Then, the current obtained by the first type of light-emitting element D21_ab from the driving circuit is (Ia+Ib) / 2, the current obtained by the first type of light-emitting element D21_ac from the driving circuit is (Ia+Ic) / 2, the current obtained by the first type of light-emitting element D21_bd from the driving circuit is (Ib+Id) / 2, the current obtained by the first type of light-emitting element D21_cd from the driving circuit is (Ic+Id) / 2, and the current obtained by the second type of light-emitting element D22 from the driving circuit is (Ia+Ib+Ic+Id) / 4.

[0159] It should be noted that the half and one quarter in this example are merely exemplary descriptions, and the current obtained by each second light-emitting element from the driving circuit can be set according to actual needs.

[0160] in addition, Figures 18 to 20 as well as Figure 23 The interpolation unit and the compensation unit are not shown, which does not mean that the sub-pixel group does not include the interpolation unit and the compensation unit.

[0161] In some embodiments, the light-emitting elements of multiple colors in the display panel constitute pixel units. The orthographic projection of the pixel units on the plane of the display panel may be any of the following: triangle, trapezoid, prism, pentagon, hexagon, rectangle, square, or L-shape.

[0162] like Figure 24 As shown, the display panel includes a red light-emitting element R, a green light-emitting element G and a blue light-emitting element B. The red light-emitting element R, the green light-emitting element G and the blue light-emitting element B constitute a pixel unit PU. The shape of the orthographic projection of the pixel unit PU on the plane where the display panel is located can be a triangle, a trapezoid, a prism, a pentagon, a hexagon, a rectangle, a square, an "L" shape, etc., so as to accommodate more pixel units and improve the PPI.

[0163] For example, if better display effects are sought, four light-emitting elements (eg, R / R / G / B) are arranged in one pixel to enrich the display colors and improve the color gamut.

[0164] This application also provides a display device, including the display panel provided by this application. Figure 25 , Figure 25 It is a structural schematic diagram of a display device provided in an embodiment of the present application. Figure 25 The provided display device 1000 includes the display panel 100 provided by any of the above embodiments of the present application. Figure 25 The embodiment only uses a mobile phone as an example to illustrate the display device 1000. It is understandable that the display device provided in the embodiment of the present application can be a wearable product, a computer, a television, an in-vehicle display device, or other display device with a display function, and the present application does not impose specific limitations on this. The display device provided in the embodiment of the present application has the beneficial effects of the display panel provided in the embodiment of the present application. For details, please refer to the specific description of the display panel in the above embodiments, and this embodiment will not be repeated here.

[0165] While the embodiments described above are not exhaustive, they do not limit the present application to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: The sub-pixel group includes n driving circuits and m light-emitting elements, and the output ends of the n driving circuits are electrically connected to the m light-emitting elements; The m light-emitting elements include n first light-emitting elements and i second light-emitting elements, the output ends of the n driving circuits are electrically connected to the n first light-emitting elements in a one-to-one correspondence, and the output end of at least one of the driving circuits is electrically connected to the second light-emitting element through an interpolation unit, the second light-emitting element is electrically connected to a compensation unit, n+i=m, m, n, i are all integers greater than 0, the interpolation unit is used to transmit the driving signal from the driving circuit to the second light-emitting element, and the compensation unit is used to compensate the driving signal to the second light-emitting element.

2. The display panel according to claim 1, characterized in that: i≥n.

3. The display panel according to claim 2, characterized in that: An output terminal of at least one of the driving circuits is electrically connected to a plurality of the second light-emitting elements through the same interpolation unit; Alternatively, at least two of the second light-emitting elements are respectively electrically connected to the output end of the same driving circuit through different interpolation units.

4. The display panel according to claim 1, characterized in that: i<n.

5. The display panel according to claim 4, characterized in that: At least one of the second light-emitting elements is electrically connected to output terminals of different driving circuits through different interpolation units.

6. The display panel according to claim 2 or 4, characterized in that: At least one of the compensation units is electrically connected to a plurality of the second light-emitting elements; Alternatively, at least two of the second light-emitting elements are electrically connected to different compensation units.

7. The display panel according to claim 1, characterized in that: The interpolation unit includes a first transistor, a first electrode of the first transistor is electrically connected to the output end of the driving circuit, a second electrode of the first transistor is electrically connected to the second light-emitting element, and a gate of the first transistor is connected to a first control signal.

8. The display panel according to claim 7, characterized in that: The first control signal is the same as the light emitting control signal connected to the driving circuit; Alternatively, the first control signal is different from a light emitting control signal connected to the driving circuit.

9. The display panel according to claim 1, characterized in that: The compensation unit includes a resistor, one end of the resistor is electrically connected to the compensation voltage terminal, and the other end of the resistor is electrically connected to the second light emitting element.

10. The display panel according to claim 9, characterized in that: At least one of the resistance value of the resistor and the voltage value of the compensation voltage terminal is adjustable.

11. The display panel according to claim 10, characterized in that: When the second light emitting element does not need to be compensated, the resistance value of the resistor is infinite, and / or the compensation voltage terminal does not output a voltage.

12. The display panel according to claim 9, characterized in that: The compensation unit further includes a second transistor, and the second transistor is connected in series with the resistor.

13. The display panel according to claim 1, characterized in that: The display panel includes a plurality of sub-pixel groups, and the connection relationship between the driving circuit and the light-emitting element in each sub-pixel group is the same.

14. The display panel according to claim 1, characterized in that: The sub-pixel group includes at least a first sub-pixel group and a second sub-pixel group, and the connection relationship between the driving circuit and the light-emitting element in the first sub-pixel group is different from the connection relationship between the driving circuit and the light-emitting element in the second sub-pixel group.

15. The display panel according to claim 14, characterized in that: The number of first light-emitting elements of the first sub-pixel group is different from the number of first light-emitting elements of the second sub-pixel group, and / or the number of second light-emitting elements of the first sub-pixel group is different from the number of second light-emitting elements of the second sub-pixel, and / or the number of interpolation units of the first sub-pixel group is different from the number of interpolation units of the second sub-pixel, and / or the number of compensation units of the first sub-pixel group is different from the number of compensation units of the second sub-pixel.

16. The display panel according to claim 1, characterized in that: In the same sub-pixel group, the first light-emitting element and the second light-emitting element are adjacent to each other.

17. The display panel according to claim 1, characterized in that: The sub-pixel group includes a third sub-pixel group, for the third sub-pixel group, i≥n, and the i second light-emitting elements in the third sub-pixel group are arranged around the n first light-emitting elements; And / or, the sub-pixel group includes a fourth sub-pixel group, for the fourth sub-pixel group, n>i, and the n first light-emitting elements in the fourth sub-pixel group are arranged around the i second light-emitting elements.

18. The display panel according to claim 1, characterized in that: The second light-emitting elements include a first type of light-emitting elements and a second type of light-emitting elements, the first type of light-emitting elements are electrically connected to j of the driving circuits, the second type of light-emitting elements are electrically connected to k of the driving circuits, j≠k, j and k are both integers greater than 0, and at least one of the driving circuits is electrically connected to the first type of light-emitting elements and the second type of light-emitting elements at the same time.

19. The display panel according to claim 18, characterized in that: j=2, k=4.

20. The display panel according to claim 19, characterized in that: The sub-pixel group includes four first light-emitting elements, four first-type light-emitting elements and one second-type light-emitting element. The light-emitting elements in the sub-pixel group are arranged in three rows and three columns, and the second-type light-emitting element is located at the center of the sub-pixel group.

21. The display panel according to claim 1, characterized in that: The output end of the driving circuit is electrically connected to the first light emitting element through a third transistor; A picture refresh frame of the display panel includes at least a first subframe and a second subframe; In the first subframe, the third transistor is turned on and the interpolation unit is turned off; In the second subframe, the third transistor is turned off and the interpolation unit is turned on.

22. The display panel according to claim 1, characterized in that: The light-emitting elements of multiple colors in the display panel constitute pixel units, and the shape of the positive projection of the pixel units on the plane where the display panel is located includes any one of the following: triangle, trapezoid, prism, pentagon, hexagon, rectangle, square, "L" shape.

23. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1-22.

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