Driving current adjustment circuit, color misalignment correction method, device, and storage medium

Abstract

The present application discloses a drive current adjustment circuit, a color shift correction method, an apparatus, and a storage medium, which includes a step (S10) of determining the conduction state of switching transistors (M1-M2) in the current adjustment module (20) based on the mounting state of resistors (R1-R2) in the current input module (10), and adjusting an input voltage (Vup) based on the conduction state of the switching transistors (M1-M2) to obtain a drive voltage, and a step (S20) of outputting the drive voltage to the source of a first transistor (T1) of the current output module (30), and compensating for the drive current output to a light emitting diode (OLED) of the current output module (30) via the first transistor (T1), thereby correcting color shift of the light emitting diode (OLED).

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from a Chinese patent application bearing application number 202211107078.4, filed on September 13, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of liquid crystal displays, and in particular to a driving current adjusting circuit, a color shift correction method, a display device, and a computer-readable storage medium. [Background technology]

[0003] OLED (Organic Light-Emitting Diode) displays are a type of self-luminous display device that boasts advantages such as high resolution, a wide viewing angle, fast response, and low power consumption. OLEDs, like LCDs (Liquid Crystal Displays), consist of red, green, and blue light-emitting diodes. However, in OLED displays, the light-emitting diodes have different luminances. For example, the light-emitting diodes may have a lower luminance than the red and green light-emitting diodes. Therefore, to equalize the luminance of the blue light-emitting diode with the luminance of the red and green light-emitting diodes, the driving current output to the blue light-emitting diode must be increased. Otherwise, color shift will occur on the display screen.

[0004] In the prior art, it is common to increase the driving current by changing the layout area of light-emitting diodes within a display panel. For example, by increasing the pixel area of the blue light-emitting diode, the driving current through the blue light-emitting diode is made equal to the driving current through the red light-emitting diode and the green light-emitting diode, thereby achieving the effect of making the light-emitting efficiency of the blue light-emitting diode equal to the light-emitting efficiency of the red light-emitting diode and the green light-emitting diode. However, increasing the pixel area of the blue light-emitting diode inevitably reduces the pixel area of the red light-emitting diode and the green light-emitting diode, which not only reduces the resolution of the display screen but also causes wiring fluctuations in the OLED display panel, affecting the image quality of the screen and increasing production and design costs, which is very disadvantageous to the development of OLED displays. Summary of the Invention [Problem to be solved by the invention]

[0005] The main objective of the present application is to provide a driving current adjustment circuit, a color shift correction method, a display device, and a computer-readable storage medium to solve the technical problems of reducing display resolution and increasing manufacturing and design costs when improving the brightness of light-emitting diodes. [Means for solving the problem]

[0006] To achieve the above object, the present application provides a driving current adjusting circuit, the driving current adjusting circuit including: a current input module, a current adjusting module, and a current output module; The first terminal of the first resistor in the current input module is connected to an input voltage as the input terminal of the current input module, the connection point between the second terminal of the first resistor and the first terminal of the second resistor in the current input module is connected to the input terminal of the current regulation module as the output terminal of the current input module, and the output terminal of the current regulation module is connected to the input terminal of the current output module.

[0007] The present application further provides a color misregistration correction method, the color misregistration correction method comprising: determining a conductive switching transistor in the current regulation module according to the implementation state of the resistor in the current input module, and adjusting the input voltage according to the conductive switching transistor to obtain a driving voltage; determining a conductive switching transistor in the current regulation module based on the implementation state of the resistor in the current input module, and adjusting the input voltage based on the conductive switching transistor to obtain a driving voltage.

[0008] To achieve the above object, the present application also proposes a display device including the above-mentioned drive current adjustment circuit, a memory, a processor, and a computer processing program stored in the memory and executable on the processor, the computer processing program executing the steps of the above-mentioned color misalignment correction method when executed by the processor.

[0009] To achieve the above object, the present application further provides a computer-readable storage medium having a computer program stored therein, which, when executed by a processor, performs the steps of the color misregistration correction method described above.

[0010] (beneficial effects) The present invention improves upon the conventional LED driving current regulation circuit by triggering the current regulation module based on the mounting state of the device in the current input module, and using the current regulation module to combine the input voltage transmitted from the current input module with the power supply voltage connected when the current regulation module is conductive, thereby increasing the driving voltage output from the current output module. This increases the driving current output to the LED, for example, a blue LED, and achieves the effect of changing the magnitude of the LED driving current without changing the layout area of the LED in the display panel. This not only achieves color shift correction, but also avoids the degradation of resolution caused by color shift correction. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a terminal structure diagram of a hardware operating environment according to an embodiment of the present application; [Figure 2] FIG. 2 is a module schematic diagram of a drive current adjustment circuit. [Figure 3] FIG. 2 is a schematic diagram illustrating the configuration of a drive current adjustment circuit. [Figure 4] 1 is a schematic flowchart of an embodiment of a color misregistration correction method according to the present invention. [Figure 5] 5 is a detailed schematic flowchart of step S10 in FIG. 4. DETAILED DESCRIPTION OF THE INVENTION

[0012] The realization of the objects, functional features and advantages of the present application will be further explained with reference to the accompanying drawings in combination with the embodiments.

[0013] It should be understood that the specific examples described herein are used only to interpret the present application, and are not used to limit the present application.

[0014] According to the main solution of the embodiments of the present application, the driving current regulation circuit of the conventional blue light-emitting diode is improved by connecting a current input module to the current regulation module, transmitting the input voltage of the current input module to the current regulation module, and combining the input voltage and the power supply voltage connected to it with the current regulation module to increase the driving voltage output to the current output module.

[0015] In the prior art, the effect of equalizing the light-emitting efficiency of each light-emitting diode was generally achieved by changing the layout ratio of light-emitting diodes so that the driving current of the light-emitting diodes in each pixel was equal. However, increasing the number of light-emitting diodes with low light-emitting efficiency and decreasing the number of light-emitting diodes with high light-emitting efficiency not only reduces the resolution of the display screen, but also requires rewiring of the OLED display panel, which is very disadvantageous to the development of OLED displays.

[0016] One solution provided by the present invention improves upon the conventional LED driving current regulation circuit by triggering the current regulation module based on the mounting state of the device in the current input module, and using the current regulation module to combine the input voltage transmitted from the current input module with the power supply voltage connected when the current regulation module is conductive, thereby increasing the driving voltage output from the current output module. This increases the driving current output to the LED, achieving the effect of changing the magnitude of the LED driving current without changing the layout area of the LED in the display panel. This reduces the design cost of the driving current regulation circuit to a certain extent, avoids a decrease in resolution, and ensures the image quality of the display screen.

[0017] As shown in FIG. 1, FIG. 1 is a terminal structure schematic diagram of a hardware operating environment according to an embodiment of the present application.

[0018] The color misregistration correction method according to the embodiment of the present application is applied to a display device. As shown in FIG. 1, the display device may include a processor 1001 (e.g., a CPU), a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. The communication bus 1002 enables connection and communication between these components. The user interface 1003 may include a display area and an input unit (e.g., a keyboard), and the user interface 1003 may further include a standard wired interface or a wireless interface. The network interface 1004 may include a standard wired interface or a wireless interface (e.g., a Wi-Fi interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory, such as a magnetic disk memory. The memory 1005 may be a storage device independent of the processor 1001.

[0019] In one embodiment, the display device may further include a webcam, RF (Radio Frequency) circuits, sensors, audio circuits, a WiFi module, etc. Among these, sensors include, for example, light sensors, motion sensors, and other sensors. Specifically, light sensors include an ambient light sensor and a proximity sensor. Among these, the ambient light sensor can adjust the brightness of the display based on the brightness of the ambient light. The proximity sensor can turn off the display and / or backlight when the mobile device is brought close to the ear. As a type of motion sensor, a gravity acceleration sensor can detect the magnitude of acceleration in each direction (usually three axes) and can detect the magnitude and direction of gravity when the device is stationary. This can be used for applications that recognize the orientation of the mobile device (e.g., landscape / portrait switching, related games, magnetometer orientation calibration), vibration recognition-related functions (e.g., pedometer, click), etc. Of course, the mobile device can also be equipped with other sensors such as a gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc., which will not be described here.

[0020] Those skilled in the art will appreciate that the structure of the display device shown in FIG. 1 does not constitute a limitation on the display device, and that the display device may include more or fewer components than shown, or that some components may be combined or have different component arrangements.

[0021] As shown in FIG. 1, the memory 1005, as a type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a computer processing program.

[0022] In the terminal shown in FIG. 1, the network interface 1004 is mainly connected to a back-end server and is used for data communication with the back-end server, the user interface 1003 is mainly connected to a client side (user side) and is used for data communication with the client side, and the processor 1001 calls a computer processing program stored in the memory 1005 to: determining a conductive switching transistor in the current regulation module according to the implementation state of the resistor in the current input module, and adjusting the input voltage according to the conductive switching transistor to obtain a driving voltage; determining a conductive switching transistor in the current regulation module based on the implementation state of the resistor in the current input module, and adjusting the input voltage based on the conductive switching transistor to obtain a driving voltage.

[0023] Furthermore, the processor 1001 invokes a computer processing program stored in the memory 1005 to The step of determining a conductive switching transistor in the current regulation module according to the implementation state of a resistor in the current input module, and adjusting the input voltage according to the conduction state of the switching transistor to obtain a driving voltage includes the step of determining that a first switching transistor in the current regulation module is conductive according to the implementation state of a first resistor in the current input module; and adjusting the input voltage output from the first switching transistor to a voltage follower based on the conduction state of the first switching transistor to obtain the drive voltage.

[0024] Furthermore, the processor 1001 invokes a computer processing program stored in the memory 1005 to The step of determining a conductive switching transistor in the current regulation module according to the implementation state of a resistor in the current input module, and adjusting the input voltage according to the switching transistor to obtain a driving voltage includes the step of determining that a second switching transistor in the current regulation module is conductive according to the implementation state of a second resistor in the current input module; and adjusting the input voltage through the second switching transistor based on the conduction state of the second switching transistor to obtain the drive voltage.

[0025] Referring to FIG. 2, the present application provides a driving current adjusting circuit, which includes a current input module 10, a current adjusting module 20, and a current output module 30; The first terminal of the first resistor R1 in the current input module 10 is connected to the input voltage Vup as the input terminal of the current input module 10, the connection point between the second terminal of the first resistor R1 and the first terminal of the second resistor R2 in the current input module 10 is connected to the input terminal of the current adjustment module 20 as the output terminal of the current input module 10, and the output terminal of the current adjustment module 20 is connected to the input terminal of the current output module 30.

[0026] Since the present application aims to solve the problem of color misalignment on the display screen caused by differences in the light-emitting rate between light-emitting diodes, this embodiment uses a drive current adjustment circuit suitable for blue light-emitting diodes as an example, but in reality it can also be applied to other light-emitting diode circuits that require an improvement in light-emitting rate.

[0027] Taking increasing the driving current for driving a blue LED as an example, conventionally, when increasing the driving current of a blue LED, the pixel area of the blue LED is increased and the areas of the red and green LEDs are reduced, so that the driving current through the blue LED is equal to that of the red and green LEDs, thereby achieving the effect of making the light-emitting efficiency of the blue LED equal to that of the red and green LEDs. However, this method requires changing the layout of the LEDs, which disrupts the ratio of the LEDs to each other, inevitably impairing the fidelity of the display screen, i.e., reducing the resolution of the display screen and causing color separation of RGB (Red, Green, Blue: the three primary colors) on the display screen.

[0028] In view of the above problems in the prior art, this embodiment improves the conventional driving current circuit for driving blue LEDs by adding a current regulation module 20 to the driving current circuit. The current regulation module 20 is used to combine the input voltage Vup transmitted from the current input module 10 with the power supply voltage connected when the current regulation module 20 is conductive, thereby increasing the driving voltage output to the current output module 30. The driving voltage is used to increase the driving current of the blue LEDs and further improve the light-emitting efficiency of the blue LEDs, thereby achieving the effect of improving the light-emitting efficiency of the blue LEDs without changing the layout ratio of the conventional LEDs.

[0029] Furthermore, as shown in FIG. 3, when the first resistor R1 is implemented and the second resistor R2 is not implemented, the current regulation module 20 includes a first switching transistor M1 and a voltage follower U1; The first switching transistor M1 has a gate connected to the second terminal of the first resistor R1, a drain connected to the power supply voltage VDD, and a source connected to the positive input terminal of the voltage follower U1, and the output terminal of the voltage follower U1 is connected to the input terminal of the current output module 30.

[0030] 3, when the first resistor R1 is implemented in the current input module 10 and the second resistor R2 is not implemented, the first terminal of the first resistor R1 is connected to the input voltage Vup, so that the input voltage Vup via the first resistor R1 is at a high level, and the first switching transistor M1 is turned on due to its high-pass / low-cut characteristics (because the first switching transistor M1 is an N-type MOSFET). Because the source of the first switching transistor M1 is connected to the positive input terminal of the voltage follower U1, the first switching transistor M1 outputs a drive voltage obtained by combining the input voltage Vup and the power supply voltage VDD to the voltage follower U1, and outputs the drive voltage via the voltage follower U1 to the current output module 30 to drive the blue light-emitting diode. The voltage follower U1 is connected to the drive voltage output terminal, i.e., source, of the first switching transistor M1 because the first switching transistor M1 has a large on-resistance, and increasing the resistance reduces the current absorbed by the first switching transistor M1 from the power supply voltage VDD. Therefore, to avoid a situation where the drive current for driving the blue LED cannot reach the preset drive current value due to the on-resistance of the first switching transistor M1 and the luminous efficiency of the blue LED remains lower than that of the red and green LEDs, connecting the voltage follower U1 to the source of the first switching transistor M1 improves the load capacity of the current regulation module 20, avoids current loss due to the on-resistance of the first switching transistor M1, and ensures that the drive current for driving the blue LED is equal to the drive current for the red and green LEDs, functioning as a connection between the upstream and downstream.

[0031] Furthermore, when the first resistor R1 is not implemented and the second resistor R2 is implemented, the current regulation module 20 includes a second switching transistor M2; The second transistor M2 has a gate connected to the first terminal of the second resistor R2, a source connected to a power supply voltage VDD, and a drain connected to the input terminal of the current output module 30.

[0032] When the first resistor R1 in FIG. 3 is not implemented and the second resistor R2 is implemented, as can be seen from FIG. 3, the second resistor is connected between the input voltage Vup and the second switching transistor M2. Therefore, the input voltage Vup flows to the ground terminal via the second resistor, and the input voltage Vup is at a low level. Due to the low-pass / high-cut characteristics of the second switching transistor M2 (because the second switching transistor M2 is a P-type MOSFET), the second switching transistor M2 is conductive. Based on the connection between the second switching transistor M2 and the current output module 30, a drive voltage obtained by combining the input voltage Vup and the power supply voltage VDD is output to the current output module 30, and the blue light-emitting diode in the current output module 30 is driven based on the drive voltage.

[0033] Furthermore, the current output module 30 includes a first transistor T1, a second transistor T2, and a light-emitting diode OLED; The first transistor T1 has a control terminal connected to the output terminal of the second transistor T2, an input terminal connected to the output terminal of the current regulation module 20, an output terminal connected to the positive electrode of the light emitting diode OLED, and a negative electrode of the light emitting diode OLED connected to ground VSS; The second transistor T2 has an input terminal to which a data signal Data is input, and a control terminal to which a scan signal Scan is input.

[0034] In this embodiment, a PMOS-TFT (P-Metal-Oxide-Semiconductor-Thin Film Transistor) architecture is used as an example, that is, the first transistor T1 is a P-type MOSFET. In the PMOS-TFT architecture, the details are as follows:

[0035] The second transistor T2 is an N-type MOSFET. When the scan signal Scan is at a high level, it indicates that the light emission rate of the blue LED needs to be improved. In this case, the second transistor T2 is turned on in response to the high level of the scan signal Scan. Since one end of the storage capacitor Cst is connected to the connection point between the source (i.e., output terminal) of the second transistor T2 and the gate (i.e., control terminal) of the first transistor T1, the voltage at this connection point is greater than the voltage inside the storage capacitor Cst, and the voltage output by the second transistor T2 is output to the storage capacitor Cst. Then, the gate (control terminal) of the first transistor T1 is at a low level. Due to the low-pass / high-cut characteristics of the first transistor T1, the first transistor T1 determines that the light emission rate of the blue LED needs to be improved. Then, the first transistor T1 is turned on and transmits the driving voltage transmitted from the current regulating module 20 to the drain (i.e., the output terminal of the first transistor T1) via the source (i.e., the input terminal of the first transistor T1), thereby outputting a driving current to the light emitting diode OLED connected to the drain (i.e., the output terminal of the first transistor T1). In this embodiment, the light emitting diode OLED is a blue light emitting diode.

[0036] In the above description, the driving voltage is the voltage obtained by combining the input voltage Vup and the power supply voltage VDD, and the input voltage Vup is the system voltage in the OLED display. The power supply voltage VDD is superimposed on the system voltage to ensure that the driving current of the blue LED is equal to the driving current of the red LED and the green LED, so that the luminous efficiency of the blue LED driven according to this embodiment can be equal to the luminous efficiency of the red LED and the green LED.

[0037] Alternatively, an NMOS-TFT (N-Metal-Oxide-Semiconductor-Thin Film Transistor) architecture may be used, i.e., the first transistor T1 may be a P-type MOSFET. When the first transistor T1 is an N-type MOSFET, the input terminal is the drain and the output terminal is the source.

[0038] Furthermore, the current output module 30 further includes a storage capacitor Cst; The storage capacitor Cst has a first terminal connected to the connection point between the first transistor T1 and the current regulation module 20, and a second terminal connected to the connection point between the first transistor T1 and the second transistor T2, and is used to store the voltage input from the second transistor T2 when the second transistor T2 is conductive, and to release the stored voltage when the second transistor T2 is cut off.

[0039] Referring to FIG. 4, one embodiment of the present application provides a color misalignment correction method, which includes: In step S10, the conductive switching transistor in the current regulation module is determined based on the implementation state of the resistor in the current input module, and the input voltage is adjusted based on the conductive switching transistor to obtain the driving voltage.

[0040] As shown in Figure 3, the conductive state of the switching transistor in the current regulation module is determined based on the implementation state of the resistor in the current input module. For example, if a first resistor is currently implemented, the first switching transistor is determined to be conductive. If a second resistor is currently implemented, the second switching transistor is determined to be conductive. The implementation states of the first resistor and the second resistor depend on the stability of the drive current regulation circuit. If the stability is low, the first resistor must be implemented to avoid current loss due to low stability. The drive voltage is obtained by adjusting the input voltage based on the first switching transistor that is conductive when the first resistor is implemented. If the stability is high, no current loss occurs, so the second resistor is implemented. The drive voltage is obtained by adjusting the input voltage based on the second switching transistor that is conductive when the second resistor is implemented.

[0041] In one embodiment, referring to FIG. 5 , the step of determining a conductive switching transistor in the current regulation module according to the implementation state of the resistor in the current input module in step S10, and adjusting the input voltage according to the conductive switching transistor to obtain a driving voltage includes: Step S101: determining whether a first switching transistor in the current regulation module is conductive based on the mounting state of a first resistor in the current input module; and step S102 of adjusting the input voltage output from the first switching transistor to a voltage follower based on the conduction state of the first switching transistor to obtain the driving voltage.

[0042] The stability of the drive current regulation circuit is determined, and if the stability of the drive current regulation circuit is low, a first resistor is implemented, in which case a first switching transistor in the current regulation module is turned on, and the load capacity of the drive current regulation circuit is improved based on a voltage follower connected to the first switching transistor, thereby avoiding current loss due to low stability.

[0043] When the first resistor is implemented, a high-level input voltage turns on the first switching transistor. Meanwhile, since the power supply voltage is further connected to the drain of the first switching transistor, the input voltage is adjusted based on the power supply voltage, i.e., the input voltage is compensated based on the power supply voltage to obtain the driving voltage. The driving voltage is then input to the voltage follower, allowing the voltage follower to output a driving voltage that avoids current consumption.

[0044] In one embodiment, the step of determining a conductive switching transistor in the current regulation module according to the implementation state of the resistor in the current input module in step S10, and adjusting the input voltage according to the conductive switching transistor to obtain a driving voltage includes: Step S103: determining whether the second switching transistor in the current regulation module is conductive based on the mounting state of the second resistor in the current input module; and step S104 of adjusting the input voltage through the second switching transistor according to the conduction state of the second switching transistor to obtain the driving voltage.

[0045] If the stability of the drive current adjustment circuit is not low, a second resistor is implemented. Since the second resistor is connected between the input voltage (i.e., input voltage) and the second switching transistor, the input voltage at this time flows to the ground terminal through the second resistor, and the input voltage at this time is low, causing the second switching transistor to conduct. Meanwhile, since the power supply voltage is connected to the source of the second switching transistor, the input voltage is adjusted based on the power supply voltage, i.e., the input voltage is compensated based on the power supply voltage to obtain the drive voltage.

[0046] In step S20, the driving voltage is output to the source of the first transistor of the current output module, and the driving current output to the light emitting diode of the current output module via the first transistor is compensated to correct the color shift of the light emitting diode.

[0047] Taking this embodiment as an example, since the drive current output to the conventional LEDs cannot make the luminance of the blue LED equal to that of the red and green LEDs, it is necessary to compensate the existing drive current so that the current value is equal to that of the red and green LEDs. On the other hand, in this embodiment, the existing drive current is compensated using a drive voltage, which is obtained by compensating the input voltage based on the power supply voltage. Therefore, based on the drive voltage, the luminance of the blue LED can be made equal to that of the red and green LEDs, thereby correcting the color shift phenomenon on the display screen caused by the insufficient luminance of the conventional LEDs.

[0048] In this embodiment, a compensated voltage, i.e., a driving voltage, is obtained by adjusting the input voltage based on the conduction state of the switching transistor. The driving voltage is the voltage output to the LED via the first transistor to drive the LED. While the conventional LEDs are driven based on the input voltage, resulting in insufficient light emission, the driving voltage increases the driving current, thereby improving the light emission efficiency of the LEDs. This achieves the effect of improving the light emission efficiency of the LEDs without changing the layout ratio of the LEDs. This avoids color shift on the display screen and ensures stable resolution.

[0049] An embodiment of the present application further proposes a display device, which includes a drive current adjustment circuit, a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program executing the processor achieving the steps of the color misalignment correction method.

[0050] The present application also proposes a computer-readable storage medium having a computer program stored therein, which, when executed by a processor, implements the steps of the color misregistration correction method described above.

[0051] It should be noted that, as used herein, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or system of a set of elements includes not only those elements but also other elements not expressly listed or inherent in such process, method, article, or system. In the absence of further limitations, elements qualified by the phrase "comprises a..." do not exclude the presence of other identical elements in the process, method, article, or system that includes the element.

[0052] The numbers of the above examples of the present application are for illustrative purposes only and do not represent the superiority or inferiority of the examples.

[0053] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized by adding the necessary general-purpose hardware platform to software (of course, hardware is also possible, but in many cases the former is a better implementation method). Based on this understanding, the technical solution of the present application, in essence or in part contributing to the prior art, can be embodied in the form of a software product. The computer software product can be stored in the above-mentioned storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes several instructions that cause a terminal device (which may be a mobile phone, computer, server, air conditioner, network device, etc.) to execute the methods of each embodiment of the present application.

[0054] The above are merely preferred embodiments of the present application, and do not limit the scope of protection of the present application. Any equivalent structure or equivalent flow conversion made by utilizing the contents of the specification and drawings of the present application, or any direct or indirect application to other related technical fields, are also included in the scope of protection of the present application for the same reason.

Claims

1. A drive current regulation circuit including a current input module (10), a current regulation module (20), and a current output module (30), A first terminal of a first resistor (R1) in the current input module (10) is connected to an input voltage (Vup) as an input terminal of the current input module (10), a connection point between a second terminal of the first resistor (R1) and a first terminal of a second resistor (R2) in the current input module (10) is connected to an input terminal of the current regulation module (20) as an output terminal of the current input module (10), and an output terminal of the current regulation module (20) is connected to an input terminal of the current output module (30). Drive current adjustment circuit.

2. When the first resistor (R1) is implemented and the second resistor (R2) is not implemented, the current regulation module (20) includes a first switching transistor (M1) and a voltage follower (U1); The first switching transistor (M1) has a gate connected to the second terminal of the first resistor (R1), a drain connected to a power supply voltage (VDD), and a source connected to the positive input terminal of the voltage follower (U1), and the output terminal of the voltage follower (U1) is connected to the input terminal of the current output module (30).

2. The drive current adjusting circuit of claim 1.

3. The first switching transistor (M1) is an N-type MOSFET.

3. The drive current adjusting circuit according to claim 2.

4. When the first resistor (R1) is not implemented and the second resistor (R2) is implemented, the current regulation module (20) includes a second switching transistor (M2); The second transistor (M2) has a gate connected to the first terminal of the second resistor (R2), a source connected to a power supply voltage (VDD), and a drain connected to the input terminal of the current output module (30).

2. The drive current adjusting circuit of claim 1.

5. The second switching transistor (M2) is a P-type MOSFET.

5. The drive current adjusting circuit according to claim 4.

6. The current output module (30) includes a first transistor (T1), a second transistor (T2), and a light emitting diode (OLED); The first transistor (T1) has a control terminal connected to the output terminal of the second transistor (T2), an input terminal connected to the output terminal of the current regulation module (20), an output terminal connected to the positive electrode of the light emitting diode (OLED), and a negative electrode of the light emitting diode (OLED) grounded (VSS); The second transistor (T2) has an input terminal to which a data signal (Data) is input and a control terminal to which a scan signal (Scan) is input.

2. The drive current adjusting circuit of claim 1.

7. The first transistor (T1) is a P-type MOSFET, and the second transistor (T2) is an N-type MOSFET.

7. The drive current adjusting circuit according to claim 6.

8. The first transistor (T1) is an N-type MOSFET, and its input terminal is its drain and its output terminal is its source.

7. The drive current adjusting circuit according to claim 6.

9. The current output module (30) further includes a storage capacitor (Cst); The storage capacitor (Cst) has a first terminal connected to the connection point between the first transistor (T1) and the current regulation module (20), and a second terminal connected to the connection point between the first transistor (T1) and the second transistor (T2).

7. The drive current adjusting circuit according to claim 6.

10. A color shift correction method applied to a driving current adjustment circuit, comprising: A step (S10) of determining the conductive switching transistors (M1-M2) in the current regulation module (20) based on the mounting state of the resistors (R1-R2) in the current input module (10), and adjusting the input voltage (Vup) based on the switching transistors (M1-M2) to obtain a driving voltage; and (S20) outputting the driving voltage to the source of a first transistor (T1) of a current output module (30), and compensating a driving current output to a light emitting diode (OLED) of the current output module (30) via the first transistor (T1), thereby correcting color shift of the light emitting diode (OLED), The drive current regulation circuit includes a current input module (10), a current regulation module (20), and a current output module (30); A first terminal of a first resistor (R1) in the current input module (10) is connected to an input voltage (Vup) as an input terminal of the current input module (10), a connection point between a second terminal of the first resistor (R1) and a first terminal of a second resistor (R2) in the current input module (10) is connected to an input terminal of the current regulation module (20) as an output terminal of the current input module (10), and an output terminal of the current regulation module (20) is connected to an input terminal of the current output module (30). Color misalignment correction method.

11. The driving voltage is a voltage obtained by combining the input voltage (Vup) and the power supply voltage (VDD). The color misregistration correction method according to claim 10.

12. The step (S10) of determining the conductive switching transistors (M1-M2) in the current regulation module (20) based on the mounting state of the resistors (R1-R2) in the current input module (10), and adjusting the input voltage (Vup) based on the switching transistors (M1-M2) to obtain the driving voltage, A step (S101) of determining whether a first switching transistor (M1) in the current regulation module (20) is conductive based on the mounting state of a first resistor (R1) in the current input module (10); (S102) adjusting the input voltage (Vup) output by the first switching transistor (M1) to the voltage follower (U1) based on the conduction state of the first switching transistor (M1) to obtain the driving voltage; The color misregistration correction method according to claim 10 , comprising:

13. The step (S10) of determining the conductive switching transistors (M1-M2) in the current regulation module (20) based on the mounting state of the resistors (R1-R2) in the current input module (10), and adjusting the input voltage (Vup) based on the switching transistors (M1-M2) to obtain the driving voltage, A step (S103) of determining whether a second switching transistor (M2) in the current regulation module (20) is conductive based on the mounting state of a second resistor (R2) in the current input module (10); (S104) adjusting the input voltage (Vup) through the second switching transistor (M2) based on the conduction state of the second switching transistor (M2) to obtain the driving voltage; The color misregistration correction method according to claim 10 , comprising:

14. A display device comprising a drive current adjustment circuit, a memory (1005), a processor (1001), and a computer processing program stored in the memory (1005) and executable on the processor (1001), wherein the processor (1001) executes the computer processing program to implement steps of a color misregistration correction method, The drive current regulation circuit includes a current input module (10), a current regulation module (20), and a current output module (30); A first terminal of a first resistor (R1) in the current input module (10) is connected to an input voltage (Vup) as an input terminal of the current input module (10), a connection point between a second terminal of the first resistor (R1) and a first terminal of a second resistor (R2) in the current input module (10) is connected to an input terminal of the current regulation module (20) as an output terminal of the current input module (10), and an output terminal of the current regulation module (20) is connected to an input terminal of the current output module (30); The color misregistration correction method includes: A step (S10) of determining the conductive switching transistors (M1-M2) in the current regulation module (20) based on the mounting state of the resistors (R1-R2) in the current input module (10), and adjusting the input voltage (Vup) based on the switching transistors (M1-M2) to obtain a driving voltage; and (S20) outputting the driving voltage to the source of the first transistor (T1) of the current output module (30), and compensating the driving current output to the light emitting diode (OLED) of the current output module (30) via the first transistor (T1), thereby correcting color shift of the light emitting diode (OLED). Display equipment.

15. A computer-readable storage medium on which a computer program is stored, The computer program, when executed by the processor (1001), implements steps of a color misalignment correction method, The color misregistration correction method includes: A step (S10) of determining the conductive switching transistors (M1-M2) in the current regulation module (20) based on the mounting state of the resistors (R1-R2) in the current input module (10), and adjusting the input voltage (Vup) based on the switching transistors (M1-M2) to obtain a driving voltage; and (S20) outputting the driving voltage to the source of a first transistor (T1) of a current output module (30), and compensating for a driving current output to a light emitting diode (OLED) of the current output module (30) via the first transistor (T1), thereby correcting color shift of the light emitting diode (OLED). A computer-readable storage medium.

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