Brightness compensation driving method for bigrid regulation and control light-emitting device

Abstract

The invention discloses a brightness compensation driving method for a bigrid regulation and control light-emitting device, and the method comprises the steps: applying a first driving current corresponding to a first gray-scale value to the bigrid regulation and control light-emitting device, and obtaining an actual gray-scale value of the bigrid regulation and control light-emitting device; according to the actual gray-scale value and the first gray-scale value, obtaining a gray-scale brightness difference value and the current first light-emitting efficiency of the bigrid regulation and control light-emitting device; obtaining a first gate voltage applied to the full-type regulation and control electrode and a second gate voltage applied to the single-type regulation and control electrode according to the preset required luminous efficiency, the actual gray-scale value and the first gray-scale value; repeating the above steps to obtain a first gate voltage and a second gate voltage corresponding to each gray-scale value of the bigrid regulation and control light-emitting device; and obtaining a current display gray-scale value of the bigrid regulation and control light-emitting device, and driving the bigrid regulation and control light-emitting device according to the first grid voltage, the second grid voltage and the driving current corresponding to the current display gray-scale value. According to the invention, regulation and control misalignment caused by mutual influence of double-end regulation and control can be avoided.

Description

Technical Field

[0001] The invention relates to the field of optoelectronic display, and in particular to a dual-gate regulation light emitting device brightness compensation driving method. Background Art

[0002] Light-emitting devices in optoelectronic displays are an important component of display devices. They present images or information by emitting light. The light-emitting principle of many light-emitting devices is based on the fact that after power is turned on, electrons and holes combine in the light-emitting functional layer to form excitons, and when the excitons recombine, they release energy and emit light, such as QLED (quantum dot light-emitting diodes) and OLED (organic light-emitting diodes). These light-emitting devices have the advantages of rich color expression, high contrast, fast response speed, wide viewing angle, energy saving and environmental protection.

[0003] These light-emitting devices may age during the preparation process due to process factors or during long-term use, which may lead to a decrease in luminous efficiency. The decrease in luminous efficiency will cause the displayed grayscale to be mismatched with the actual grayscale, thereby reducing the display quality. By changing the carrier mobility in these light-emitting devices through gate regulation, the luminous brightness and luminous efficiency can be regulated, and the grayscale value (brightness) can be compensated. In the prior art, when the luminous brightness and luminous efficiency can be adjusted by double-end gate regulation, the gate that can improve the luminous brightness and luminous efficiency is generally adjusted first. After the luminous brightness meets the composite requirements, if the luminous efficiency still does not meet the requirements, the gate used to separately regulate the luminous efficiency is adjusted. However, the gate used to separately regulate the luminous efficiency adopts the principle of reducing the injection of carriers into the luminous layer. While improving the luminous efficiency, it will slightly reduce the luminous brightness, which will make the adjustment of the luminous brightness less precise. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a dual-gate controlled light-emitting device brightness compensation driving method, aiming to avoid the mutual influence of double-end control leading to control inaccuracy, and ensure that the luminous efficiency and luminous brightness meet the requirements.

[0005] To achieve the above-mentioned purpose, the present invention discloses a dual-gate controlled light-emitting device brightness compensation driving method, which is applied to a dual-gate controlled light-emitting device, wherein the dual-gate controlled light-emitting device sequentially comprises: a first gate control electrode, a first gate insulating layer, an anode, a light-emitting functional layer, a cathode, a second gate insulating layer and a second gate control electrode, wherein the first gate control electrode and the second gate control electrode are used to apply a gate voltage relative to the anode and the cathode, and the gate voltage is used to construct an electric field to control the mobility of carriers in the light-emitting unit and adjust the light-emitting efficiency and / or light-emitting brightness of the light-emitting unit; the method comprises:

[0006] Step S1, applying a first driving current corresponding to a first grayscale value to the dual-gate controlled light-emitting device to obtain an actual grayscale value of the dual-gate controlled light-emitting device; wherein the first gate control electrode and the second gate control electrode are respectively one of a full-type control electrode for simultaneously controlling luminous efficiency and luminous brightness and a single-type control electrode for separately controlling luminous efficiency;

[0007] Step S2, obtaining a grayscale brightness difference and a current first luminous efficiency of the dual-gate regulated light-emitting device according to the actual grayscale value and the first grayscale value;

[0008] Step S3, obtaining a first gate voltage applied to the full-type control electrode side according to the actual grayscale value and the grayscale brightness difference; wherein when the first gate voltage is applied to the full-type control electrode side, the grayscale value displayed by the dual-gate control light-emitting device matches the first grayscale value;

[0009] Step S4, according to the first gate voltage, obtaining the first luminous efficiency improvement of the dual-gate regulated light-emitting device by the first gate voltage; according to the first luminous efficiency and the first luminous efficiency improvement, obtaining the second luminous efficiency after applying the first gate voltage; judging whether the second luminous efficiency is greater than the preset required luminous efficiency, if so, determining that the second gate voltage applied to the single-type regulating electrode side is zero; if not, proceeding to step S5;

[0010] Step S5, re-obtaining the first gate voltage applied to the full-type control electrode and the second gate voltage applied to the single-type control electrode according to the preset required luminous efficiency, the actual grayscale value and the first grayscale value; wherein the luminous efficiency increased corresponding to the first gate voltage and the luminous efficiency increased corresponding to the second gate voltage match the preset required luminous efficiency, and the luminous brightness increased corresponding to the first gate voltage and the luminous brightness decreased corresponding to the second gate voltage match the first grayscale value;

[0011] Step S6, repeating steps S1-S5 to obtain the first gate voltage and the second gate voltage corresponding to each grayscale value of the dual-gate controlled light-emitting device;

[0012] Step S7, obtaining the current display grayscale value of the dual-gate regulated light-emitting device, and driving the dual-gate regulated light-emitting device according to the first gate voltage, the second gate voltage and the driving current corresponding to the current display grayscale value.

[0013] Optionally, before step S1, the method further includes:

[0014] Step S201, applying a first experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a first reference grayscale value;

[0015] Step S202, continuously adjusting the first test gate voltage of the full-type control gate, and collecting the improved luminous efficiency and improved luminous brightness of the dual-gate control light-emitting device under each different first test gate voltage; obtaining the relationship between the first gate voltage-luminous efficiency improvement-luminous brightness improvement corresponding to the first reference grayscale value;

[0016] Repeat the above steps S201 and S202 to obtain the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement corresponding to different reference grayscale values.

[0017] Optionally, before step S1, the method further includes:

[0018] Step S301, applying a second experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a second reference grayscale value;

[0019] Step S202, continuously adjusting the second test gate voltage of the single-type control gate, and collecting the improved luminous efficiency and reduced luminous brightness of the dual-gate control light-emitting device under each different second test gate voltage; obtaining the relationship between the second gate voltage-luminous efficiency improvement-reduced luminous brightness corresponding to the second reference grayscale value;

[0020] Repeat the above steps S301 and S302 to obtain the relationship between the second gate voltage-luminescence efficiency improvement-luminescence brightness reduction corresponding to different reference grayscale values.

[0021] Optionally, step S3 includes:

[0022] Taking the actual grayscale value as a reference grayscale value, obtaining a relationship corresponding to the first gate voltage-luminescence enhancement efficiency-luminescence enhancement brightness;

[0023] Then, the grayscale brightness difference is substituted as the required luminous brightness enhancement into the relationship between the first gate voltage-luminous enhancement efficiency-luminous brightness enhancement to obtain the first gate voltage applied to the full-type control electrode side.

[0024] Optionally, in step S4, obtaining, according to the first gate voltage, a first light emission improvement efficiency of the dual-gate regulated light-emitting device caused by the first gate voltage includes:

[0025] Substitute the first gate voltage into the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement to obtain the first gate voltage's first luminescence enhancement efficiency for the dual-gate controlled light-emitting device.

[0026] Optionally, step S5 includes:

[0027] Using the actual grayscale value as a reference grayscale value, obtaining the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement corresponding to the full-type control gate and the relationship between the second gate voltage-luminescence enhancement efficiency-luminescence brightness reduction corresponding to the single-type control gate;

[0028] The first gate voltage and the second gate voltage are matched in the relationship between the first gate voltage-luminescence improvement efficiency-increase in luminescence brightness and the relationship between the second gate voltage-luminescence improvement efficiency-reduction in luminescence brightness, so that the dual-gate regulated light-emitting device is affected by the first gate voltage and the second gate voltage, the luminescence efficiency is improved to be greater than the preset required luminescence efficiency, and the grayscale value is improved to match the first grayscale value.

[0029] Optionally, the light-emitting functional layer includes one of a quantum dot light-emitting functional layer and an organic light-emitting functional layer.

[0030] Optionally, the electron mobility of the light-emitting functional layer is greater than the hole mobility, the first gate control electrode is the full-type control electrode, and the second gate control electrode is the single-type control electrode.

[0031] Optionally, the hole mobility of the light-emitting functional layer is greater than the electron mobility, the second gate control electrode is the full-type control electrode, and the first gate control electrode is the single-type control electrode.

[0032] Beneficial effects of the present invention: 1. The present invention can first obtain the relationship between the gate voltage of the two gate control electrodes at each reference grayscale and the changed luminous efficiency and changed luminous brightness. Then, the first gate voltage and the second gate voltage of each grayscale value are determined according to these relationships. The first gate voltage and the second gate voltage can make the luminous brightness and luminous efficiency of the dual-gate controlled light-emitting device meet the requirements. Compared with the prior art, the present invention takes into account the subtle influence of the gate that controls the luminous efficiency alone on the luminous brightness, and eliminates the influence through the above-mentioned method, thereby improving the control accuracy. 2. The present invention adjusts the luminous brightness through gate control, thereby avoiding changes in the driving current. When multiple dual-gate controlled light-emitting devices are working, the driving current of the same grayscale remains uniform, which is convenient for driving.

[0033] In summary, the present invention avoids the mutual influence of double-end regulation leading to regulation inaccuracy, ensures that the luminous efficiency and luminous brightness meet the requirements, effectively improves the display quality and saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flow chart of a dual-gate control light emitting device brightness compensation driving method provided by a specific embodiment of the present invention;

[0035] Figure 2It is a structural schematic diagram of an electronic dual-gate controlled light-emitting device provided by a specific embodiment of the present invention;

[0036] Figure 3 It is a schematic structural diagram of a hole-type double-gate controlled light-emitting device provided by a specific embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention discloses a dual-gate controlled light emitting device brightness compensation driving method. Those skilled in the art can refer to the content of this article and appropriately improve the technical details for implementation. It should be particularly noted that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0038] The applicant has found through research that these light-emitting devices may age during the preparation process due to process factors or during long-term use, which may lead to a decrease in luminous efficiency. The decrease in luminous efficiency will cause the displayed grayscale to be mismatched with the actual grayscale, thereby reducing the display quality. By changing the carrier mobility in these light-emitting devices through gate regulation, the luminous brightness and luminous efficiency can be regulated, and the grayscale value (brightness) can be compensated. When the prior art can adjust the luminous brightness and luminous efficiency through double-end gate regulation, the gate that can improve the luminous brightness and luminous efficiency is generally adjusted first. After the luminous brightness meets the composite requirements, if the luminous efficiency still does not meet the requirements, the gate used to separately regulate the luminous efficiency is adjusted. However, the gate used to separately regulate the luminous efficiency adopts the principle of reducing the injection of carriers into the luminous layer. While improving the luminous efficiency, it will slightly reduce the luminous brightness, which will make the adjustment of the luminous brightness less precise.

[0039] Therefore, the embodiment of the present invention provides a dual-gate controlled light-emitting device brightness compensation driving method, which is applied to the dual-gate controlled light-emitting device. The dual-gate controlled light-emitting device includes: a first gate control electrode, a first gate insulating layer, an anode, a light-emitting functional layer, a cathode, a second gate insulating layer and a second gate control electrode in sequence. The first gate control electrode and the second gate control electrode are used to apply a gate voltage relative to the anode and the cathode. The gate voltage is used to construct an electric field to control the mobility of carriers in the light-emitting unit to adjust the light-emitting efficiency and / or light-emitting brightness of the light-emitting unit. Figure 1 As shown, the method includes:

[0040] Step S1: applying a first driving current corresponding to a first grayscale value to a dual-gate controlled light-emitting device to obtain an actual grayscale value of the dual-gate controlled light-emitting device.

[0041] The first gate control electrode and the second gate control electrode are respectively one of a full-type control electrode for simultaneously controlling the luminous efficiency and the luminous brightness and a single-type control electrode for solely controlling the luminous efficiency.

[0042] It should be noted that, because the two carrier mobilities corresponding to the light-emitting functional layer are different, when the carriers with low mobility are injected, the luminous efficiency and luminous brightness will be improved, so the corresponding control gate is a full-type control gate. When the carriers with high mobility flow outside the light-emitting functional layer, the luminous efficiency, so that the two carrier mobilities tend to be balanced, so the luminous efficiency will also be improved, so the corresponding control gate is a single-type control gate. However, when the single-type control gate improves the efficiency, it moves the carriers in the light-emitting functional layer out, so it will have a slight impact on the luminous brightness and slightly reduce the luminous brightness (because there are more carriers with high mobility in the light-emitting functional layer, so the reduction is small), so the single-type control gate has a much smaller effect on the brightness adjustment than the full-type gate control, so there will be no situation where it cannot be controlled.

[0043] It is worth mentioning that when the single-type control gate improves efficiency, electrons can flow to the energy storage capacitor, allowing the energy storage capacitor to store more electrical energy, thereby extending the luminous time of the dual-gate control light emitter, thereby improving the overall luminous efficiency. In order to ensure that the dual-gate control light emitter can continuously emit light, the energy storage capacitor is a common design.

[0044] Step S2: obtaining a grayscale brightness difference and a current first luminous efficiency of the dual-gate controlled light-emitting device according to the actual grayscale value and the first grayscale value.

[0045] In this specific embodiment, step S2 includes:

[0046] Obtaining a grayscale brightness difference value according to the actual grayscale value and the first grayscale value;

[0047] Obtaining an original luminous efficiency according to the first grayscale value and the first driving current;

[0048] A first luminous efficiency is obtained according to the original luminous efficiency and the grayscale brightness difference.

[0049] Step S3: obtaining a first grid voltage applied to the full-type control electrode side according to the actual grayscale value and the grayscale brightness difference.

[0050] Wherein, when the first gate voltage is applied to the full-type control electrode side, the grayscale value displayed by the dual-gate control light-emitting device matches the first grayscale value.

[0051] Step S4, based on the first gate voltage, obtain the first luminous efficiency improvement of the dual-gate controlled light-emitting device caused by the first gate voltage; based on the first luminous efficiency and the first luminous efficiency improvement, obtain the second luminous efficiency after applying the first gate voltage; determine whether the second luminous efficiency is greater than the preset required luminous efficiency, and if so, determine that the second gate voltage applied to the single-type control electrode side is zero; if not, proceed to step S5.

[0052] Step S5, according to the preset required luminous efficiency, the actual grayscale value and the first grayscale value, re-obtain the first gate voltage applied to the full-type control electrode and the second gate voltage applied to the single-type control electrode; wherein the luminous efficiency increased corresponding to the first gate voltage and the luminous efficiency increased corresponding to the second gate voltage match the preset required luminous efficiency, and the luminous brightness increased corresponding to the first gate voltage and the luminous brightness reduced corresponding to the second gate voltage match the first grayscale value.

[0053] It should be noted that the embodiment of the present invention can first adjust the full-type control gate to improve both the luminous efficiency and the brightness. When the luminous brightness compensation is in place and the luminous efficiency also meets the requirements, there is no need to apply the second gate voltage. When the luminous brightness compensation is in place and the second luminous efficiency is insufficient, the first gate voltage and the second gate voltage are re-solved according to the relationship between the gate voltage, the luminous efficiency change amplitude, and the luminous brightness change amplitude to ensure that both the luminous brightness and the luminous efficiency can meet the requirements.

[0054] Step S6, repeating steps S1-S5 to obtain the first gate voltage and the second gate voltage corresponding to each grayscale value of the dual-gate controlled light-emitting device.

[0055] Step S7, obtaining the current display grayscale value of the dual-gate controlled light-emitting device, and driving the dual-gate controlled light-emitting device according to the first gate voltage, the second gate voltage and the driving current corresponding to the current display grayscale value.

[0056] In this specific embodiment, before step S1, the method further includes:

[0057] Step S201, applying a first experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a first reference grayscale value;

[0058] Step S202, continuously adjusting the first test gate voltage of the full-type control gate, and collecting the improved luminous efficiency and improved luminous brightness of the dual-gate control light-emitting device under each different first test gate voltage; obtaining the relationship between the first gate voltage-luminous efficiency improvement-improved luminous brightness corresponding to the first reference grayscale value;

[0059] Repeat the above steps S201 and S202 to obtain the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement corresponding to different reference grayscale values.

[0060] Furthermore, before step S1, the method further includes:

[0061] Step S301, applying a second experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a second reference grayscale value;

[0062] Step S202, continuously adjusting the second test gate voltage of the single-type control gate, and collecting the improved luminous efficiency and reduced luminous brightness of the dual-gate control light-emitting device under different second test gate voltages; obtaining the relationship between the second gate voltage-luminous efficiency improvement-reduced luminous brightness corresponding to the second reference grayscale value;

[0063] Repeat the above steps S301 and S302 to obtain the relationship between the second gate voltage-luminescence efficiency improvement-luminescence brightness reduction corresponding to different reference grayscale values.

[0064] Further, step S3 includes:

[0065] Taking the actual grayscale value as the reference grayscale value, the relationship between the first gate voltage, the light-emitting efficiency enhancement, and the light-emitting brightness enhancement is obtained;

[0066] Then, the grayscale brightness difference is substituted into the relationship of the first gate voltage-luminescence enhancement efficiency-enhanced luminescence brightness as the required enhancement of luminous brightness, and the first gate voltage applied to the full-type control electrode side is obtained.

[0067] Furthermore, in step S4, according to the first gate voltage, obtaining a first light emission improvement efficiency of the dual-gate regulated light emitting device by the first gate voltage includes:

[0068] Substituting the first gate voltage into the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement, the first luminescence enhancement efficiency of the double-gate controlled light-emitting device is obtained.

[0069] Further, step S5 includes:

[0070] Taking the actual grayscale value as the reference grayscale value, the relationship between the first gate voltage corresponding to the full-type control gate, the luminous efficiency improvement, and the luminous brightness improvement, and the relationship between the second gate voltage corresponding to the single-type control gate, the luminous efficiency improvement, and the luminous brightness reduction, are obtained;

[0071] The first gate voltage and the second gate voltage are matched within the relationship between the first gate voltage - luminescence enhancement efficiency - enhancement of luminescence brightness and the second gate voltage - luminescence enhancement efficiency - reduction of luminescence brightness, so that the dual-gate controlled light-emitting device is affected by the first gate voltage and the second gate voltage, the luminescence efficiency is enhanced to be greater than the preset required luminescence efficiency, and the grayscale value is enhanced to match the first grayscale value.

[0072] In this specific embodiment, the light-emitting functional layer includes one of a quantum dot light-emitting functional layer and an organic light-emitting functional layer.

[0073] In the first specific embodiment, the electron mobility of the light-emitting functional layer is greater than the hole mobility, the first gate control electrode is a full-type control electrode, and the second gate control electrode is a single-type control electrode.

[0074] Furthermore, the electron mobility of the light-emitting functional layer is greater than the hole mobility, and the dual-gate controlled light-emitting device is electronic type and Figure 2 As shown, Figure 2 In the embodiment, the first gate control electrode is a full-type control electrode and a forward gate voltage is applied, which can improve the luminous efficiency and luminous brightness. The second gate control electrode is a single-type control electrode and a forward gate voltage is applied, which can improve the luminous efficiency and slightly reduce the luminous brightness.

[0075] In the second specific embodiment, the hole mobility of the light-emitting functional layer is greater than the electron mobility, the second gate control electrode is a full-type control electrode, and the first gate control electrode is a single-type control electrode.

[0076] Furthermore, the hole mobility of the light-emitting functional layer is greater than the electron mobility, and the double-gate controlled light-emitting device is a hole type and Figure 3 As shown, Figure 3 In the embodiment, the first gate control electrode is a single-type control electrode and a negative gate voltage is applied, which can improve the luminous efficiency and slightly reduce the luminous brightness. The second gate control electrode is a full-type control electrode and a negative gate voltage is applied, which can improve the luminous efficiency and luminous brightness.

[0077] The embodiment of the present invention can first obtain the relationship between the gate voltage of the two gate control electrodes at each reference grayscale and the changed luminous efficiency and changed luminous brightness. Then, the first gate voltage and the second gate voltage of each grayscale value are determined according to these relationships. The first gate voltage and the second gate voltage can make the luminous brightness and luminous efficiency of the dual-gate controlled light emitter meet the requirements. Compared with the prior art, the embodiment of the present invention takes into account the subtle influence of the gate that controls the luminous efficiency alone on the luminous brightness, and eliminates this influence in the above manner, thereby improving the control accuracy.

[0078] The embodiment of the present invention adjusts the luminous brightness through gate regulation, thereby avoiding changes in the driving current. When multiple dual-gate regulated light-emitting devices are working, the driving current of the same gray scale remains uniform, which is convenient for driving.

[0079] In summary, the embodiments of the present invention avoid the mutual influence of double-end regulation leading to regulation inaccuracy, ensure that the luminous efficiency and luminous brightness meet the requirements, effectively improve the display quality and save energy.

[0080] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0081] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A dual-gate controlled light emitting device brightness compensation driving method, applied to a dual-gate controlled light emitting device, characterized in that: The dual-gate controlled light-emitting device comprises, in sequence: a first gate control electrode, a first gate insulating layer, an anode, a light-emitting functional layer, a cathode, a second gate insulating layer and a second gate control electrode, wherein the first gate control electrode and the second gate control electrode are used to apply a gate voltage relative to the anode and the cathode, and the gate voltage is used to construct an electric field to control the mobility of carriers in the light-emitting unit to adjust the light-emitting efficiency and / or light-emitting brightness of the light-emitting unit; the method comprises: Step S1, applying a first driving current corresponding to a first grayscale value to the dual-gate controlled light-emitting device to obtain an actual grayscale value of the dual-gate controlled light-emitting device; wherein the first gate control electrode and the second gate control electrode are respectively one of a full-type control electrode for simultaneously controlling luminous efficiency and luminous brightness and a single-type control electrode for separately controlling luminous efficiency; Step S2, obtaining a grayscale brightness difference and a current first luminous efficiency of the dual-gate regulated light-emitting device according to the actual grayscale value and the first grayscale value; Step S3, obtaining a first gate voltage applied to the full-type control electrode side according to the actual grayscale value and the grayscale brightness difference; wherein when the first gate voltage is applied to the full-type control electrode side, the grayscale value displayed by the dual-gate control light-emitting device matches the first grayscale value; Step S4, according to the first gate voltage, obtaining the first luminous efficiency improvement of the dual-gate regulated light-emitting device by the first gate voltage; according to the first luminous efficiency and the first luminous efficiency improvement, obtaining the second luminous efficiency after applying the first gate voltage; judging whether the second luminous efficiency is greater than the preset required luminous efficiency, if so, determining that the second gate voltage applied to the single-type regulating electrode side is zero; if not, proceeding to step S5; Step S5, re-obtaining the first gate voltage applied to the full-type control electrode and the second gate voltage applied to the single-type control electrode according to the preset required luminous efficiency, the actual grayscale value and the first grayscale value; wherein the luminous efficiency increased corresponding to the first gate voltage and the luminous efficiency increased corresponding to the second gate voltage match the preset required luminous efficiency, and the luminous brightness increased corresponding to the first gate voltage and the luminous brightness decreased corresponding to the second gate voltage match the first grayscale value; Step S6, repeating steps S1-S5 to obtain the first gate voltage and the second gate voltage corresponding to each grayscale value of the dual-gate controlled light-emitting device; Step S7, obtaining the current display grayscale value of the dual-gate regulated light-emitting device, and driving the dual-gate regulated light-emitting device according to the first gate voltage, the second gate voltage and the driving current corresponding to the current display grayscale value.

2. The dual-gate controlled light emitting device brightness compensation driving method according to claim 1, characterized in that: Before step S1, the method further includes: Step S201, applying a first experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a first reference grayscale value; Step S202, continuously adjusting the first test gate voltage of the full-type control gate, and collecting the improved luminous efficiency and improved luminous brightness of the dual-gate control light-emitting device under each different first test gate voltage; obtaining the relationship between the first gate voltage-luminous efficiency improvement-luminous brightness improvement corresponding to the first reference grayscale value; Repeat the above steps S201 and S202 to obtain the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement corresponding to different reference grayscale values.

3. The dual-gate controlled light emitting device brightness compensation driving method according to claim 2, characterized in that: Before step S1, the method further includes: Step S301, applying a second experimental current to the dual-gate regulated light-emitting device, so that the dual-gate regulated light-emitting device is at a second reference grayscale value; Step S202, continuously adjusting the second test gate voltage of the single-type control gate, and collecting the improved luminous efficiency and reduced luminous brightness of the dual-gate control light-emitting device under each different second test gate voltage; obtaining the relationship between the second gate voltage-luminous efficiency improvement-reduced luminous brightness corresponding to the second reference grayscale value; Repeat the above steps S301 and S302 to obtain the relationship between the second gate voltage-luminescence efficiency improvement-luminescence brightness reduction corresponding to different reference grayscale values.

4. The dual-gate controlled light emitting device brightness compensation driving method according to claim 3, characterized in that: The step S3 comprises: Taking the actual grayscale value as a reference grayscale value, obtaining a relationship corresponding to the first gate voltage-luminescence enhancement efficiency-luminescence enhancement brightness; Then, the grayscale brightness difference is substituted as the required luminous brightness enhancement into the relationship between the first gate voltage-luminous enhancement efficiency-luminous brightness enhancement to obtain the first gate voltage applied to the full-type control electrode side.

5. The dual-gate controlled light emitting device brightness compensation driving method according to claim 4, characterized in that: In step S4, obtaining, according to the first gate voltage, a first light emission improvement efficiency of the dual-gate regulated light emitting device caused by the first gate voltage includes: Substitute the first gate voltage into the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement to obtain the first gate voltage's first luminescence enhancement efficiency for the dual-gate controlled light-emitting device.

6. The dual-gate controlled light emitting device brightness compensation driving method according to claim 3, characterized in that: The step S5 comprises: Using the actual grayscale value as a reference grayscale value, obtaining the relationship between the first gate voltage-luminescence enhancement efficiency-luminescence brightness enhancement corresponding to the full-type control gate and the relationship between the second gate voltage-luminescence enhancement efficiency-luminescence brightness reduction corresponding to the single-type control gate; The first gate voltage and the second gate voltage are matched in the relationship between the first gate voltage-luminescence improvement efficiency-increase in luminescence brightness and the relationship between the second gate voltage-luminescence improvement efficiency-reduction in luminescence brightness, so that the dual-gate regulated light-emitting device is affected by the first gate voltage and the second gate voltage, the luminescence efficiency is improved to be greater than the preset required luminescence efficiency, and the grayscale value is improved to match the first grayscale value.

7. The dual-gate controlled light emitting device brightness compensation driving method according to claim 3, characterized in that: The light-emitting functional layer includes one of a quantum dot light-emitting functional layer and an organic light-emitting functional layer.

8. The dual-gate controlled light emitting device brightness compensation driving method according to claim 1, characterized in that: The electron mobility of the light-emitting functional layer is greater than the hole mobility, the first gate control electrode is the full-type control electrode, and the second gate control electrode is the single-type control electrode.

9. The dual-gate controlled light emitting device brightness compensation driving method according to claim 1, characterized in that: The hole mobility of the light-emitting functional layer is greater than the electron mobility, the second gate control electrode is the full-type control electrode, and the first gate control electrode is the single-type control electrode.

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