Voltage control method and device of display panel, electronic equipment and storage medium

Abstract

The application relates to a voltage control method and device of a display panel, electronic equipment and a storage medium. The method comprises the following steps: obtaining current working condition information of the display panel; the display panel comprises a thin film transistor (TFT) substrate; obtaining a gate target control voltage corresponding to the current working condition information; adjusting a gate voltage generation circuit according to the gate target control voltage, so as to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage; and controlling the gate on the TFT substrate by using the gate target control voltage. According to the application, the output voltage of the gate voltage generation circuit is dynamically adjusted according to the current working condition information of the display panel, so as to control the gate on the TFT substrate by using the output voltage, thereby improving the efficiency of the gate voltage generation circuit as much as possible under the premise that the electric energy can be saturated, so as to save power consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a voltage control method and device of display panel, electronic equipment and storage medium. BACKGROUND

[0002] Thin film transistor (TFT) is a special type of metal oxide semiconductor field effect transistor (MOSFET), mainly used in liquid crystal display. In TFT display panel driving circuit power supply, the VGH (high voltage of gate) / VGL (low voltage of gate) of TFT display panel is responsible for turning on TFT to charge the capacitor (correcting the voltage across the capacitor) and turning off TFT to keep the capacitor voltage (one field period of time).

[0003] In the related art, the VGH / VGL voltage of TFT display panel is generated by low dropout linear regulator after being processed by charge pump of display panel driving chip. However, too high VGH / VGL will affect the efficiency of voltage conversion circuit of display panel driving chip, thereby causing waste of power consumption. SUMMARY

[0004] In order to overcome the problems in the related art, the present application provides a voltage control method and device of display panel, electronic equipment and storage medium.

[0005] According to a first aspect of the embodiments of the present application, a voltage control method of display panel is provided, comprising:

[0006] obtaining current working condition information of the display panel; the display panel comprises a thin film transistor (TFT) substrate;

[0007] obtaining a gate target control voltage corresponding to the current working condition information;

[0008] adjusting a gate voltage generation circuit according to the gate target control voltage, so as to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage;

[0009] controlling the gate on the TFT substrate by using the gate target control voltage.

[0010] Optionally, in some embodiments of the present application, the gate target control voltage at least includes a VGH target voltage value and a VGL target voltage value; and the obtaining the gate target control voltage corresponding to the current working condition information includes: determining at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information in a preset lookup table; wherein the number of the determined VGH voltage value and the VGL voltage value is the same as the number of information contained in the current working condition information; and determining the VGH target voltage value and the VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value.

[0011] Optionally, in some embodiments of the present application, the determining the VGH target voltage value and the VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value includes: determining the maximum value in the at least one VGH voltage value as the VGH target voltage value; and determining the maximum value in the at least one VGL voltage value as the VGL target voltage value.

[0012] Optionally, in some embodiments of the present application, the obtaining the gate target control voltage corresponding to the current working condition information further includes: in response to that the current working condition information is not found in the preset lookup table, calculating the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information by using a linear interpolation method.

[0013] Optionally, in some embodiments of the present application, the current working condition information includes at least one of the following: a current frame rate, a current display brightness DBV, a current gray scale value and a current temperature value; and the preset lookup table is a VGH / VGL change lookup table constructed based on different working condition information of the display panel, wherein the working condition information includes at least one of the following: a frame rate, a DBV, a gray scale value and a temperature value, and the preset lookup table includes a corresponding relationship between at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value and VGH / VGL respectively.

[0014] Optionally, in some embodiments of the present application, the adjusting the gate voltage generation circuit according to the gate target control voltage to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage includes: selecting a target generation scheme from a plurality of generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value; and adjusting the gate voltage generation circuit based on the target generation scheme to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0015] Optionally, in some embodiments of the present application, the plurality of generation schemes includes a first generation scheme and a second generation scheme, in the first generation scheme, the input voltage of the gate voltage generation circuit includes a first voltage and a second voltage, in the second generation scheme, the input voltage includes a third voltage, the third voltage is N times of the first voltage, N is an integer greater than 1; the selecting a target generation scheme from the plurality of generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value includes: in response to a sum of the VGH target voltage value and the VGL target voltage value being less than the third voltage and greater than a sum of the first voltage and the second voltage, selecting the second generation scheme as the target generation scheme; and / or, in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the sum of the first voltage and the second voltage, selecting the first generation scheme as the target generation scheme.

[0016] Optionally, in some embodiments of the present application, the plurality of generation schemes further includes a third generation scheme, in the third generation scheme, the input voltage includes the first voltage; the selecting a target generation scheme from the plurality of generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value further includes: in response to a sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the first voltage, selecting the third generation scheme as the target generation scheme.

[0017] According to a second aspect of the embodiments of the present application, a voltage control device of a display panel is provided, including:

[0018] a first obtaining module, configured to obtain current working condition information of a display panel; the display panel includes a thin film transistor (TFT) substrate;

[0019] a second obtaining module, configured to obtain a gate target control voltage corresponding to the current working condition information;

[0020] an adjusting module, configured to adjust a gate voltage generation circuit according to the gate target control voltage, so as to adjust an output voltage of the gate voltage generation circuit to the gate target control voltage;

[0021] a control module, configured to control a gate on the TFT substrate by using the gate target control voltage.

[0022] Optionally, in some embodiments of the present application, the gate target control voltage at least includes a VGH target voltage value and a VGL target voltage value; the second obtaining module is specifically configured to: determine at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information in a preset lookup table; wherein the number of the determined VGH voltage value and the VGL voltage value is the same as the number of information contained in the current working condition information; determine the VGH target voltage value and the VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value.

[0023] Optionally, in some embodiments of the present application, the second obtaining module is further configured to: determine the maximum value in the at least one VGH voltage value as the VGH target voltage value; and determine the maximum value in the at least one VGL voltage value as the VGL target voltage value.

[0024] Optionally, in some embodiments of the present application, the second obtaining module is further configured to: in response to the current working condition information not being found in the preset lookup table, calculate the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information by using a linear interpolation method.

[0025] Optionally, in some embodiments of the present application, the current working condition information includes at least one of the following: a current frame rate, a current display brightness DBV, a current gray scale value and a current temperature value; the preset lookup table is a VGH / VGL change lookup table constructed based on different working condition information of the display panel, the working condition information includes at least one of the following: a frame rate, a DBV, a gray scale value and a temperature value, and the preset lookup table includes a corresponding relationship between at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value and VGH / VGL respectively.

[0026] Optionally, in some embodiments of the present application, the adjusting module is specifically configured to: select a target generation scheme from a plurality of generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value; and adjust a gate voltage generation circuit based on the target generation scheme, so as to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0027] Optionally, in some embodiments of the present application, the plurality of generation schemes include a first generation scheme and a second generation scheme, in the first generation scheme, the input voltage of the gate voltage generation circuit includes a first voltage and a second voltage, in the second generation scheme, the input voltage includes a third voltage, the third voltage is N times of the first voltage, N is an integer greater than 1; the adjustment module is further configured to: in response to a sum of the VGH target voltage value and the VGL target voltage value being less than the third voltage and greater than a sum of the first voltage and the second voltage, select the second generation scheme as the target generation scheme; and / or, in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the sum of the first voltage and the second voltage, select the first generation scheme as the target generation scheme.

[0028] Optionally, in some embodiments of the present application, the plurality of generation schemes further include a third generation scheme, in the third generation scheme, the input voltage includes the first voltage; the adjustment module is further configured to: in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the first voltage, select the third generation scheme as the target generation scheme.

[0029] According to a third aspect of embodiments of the present application, an electronic device is provided, including: a thin film transistor TFT display panel and a charging device, wherein the charging device includes a processor and a memory for storing processor-executable instructions, and the processor implements the voltage control method of the display panel according to the first aspect when executing the instructions.

[0030] According to a fourth aspect of embodiments of the present application, a computer-readable storage medium is provided, when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the method according to the first aspect.

[0031] According to a fifth aspect of embodiments of the present application, a computer program product is provided, including a computer program, when the computer program is executed by a processor, the method according to the first aspect is implemented.

[0032] The technical scheme provided by the embodiments of the present application can include the following beneficial effects: according to the current working condition information of the thin film transistor TFT display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are obtained, the output voltage of the gate voltage generation circuit is dynamically adjusted according to the VGH target voltage value and the VGL target voltage value, so as to adjust the output voltage to the VGH target voltage value and the VGL target voltage value, so as to control the gate on the TFT substrate with the VGH target voltage value and the VGL target voltage value, which can improve the efficiency of the gate voltage generation circuit under the premise of ensuring that the electric energy can be saturated, so as to save power consumption.

[0033] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application, as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application, in which:

[0035] Figure 1 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment.

[0036] Figure 2 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment.

[0037] Figure 3 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment.

[0038] Figure 4 is a schematic diagram of a preset lookup table according to an exemplary embodiment.

[0039] Figure 5 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment.

[0040] Figure 6 is a schematic diagram of a generation scheme according to an exemplary embodiment.

[0041] Figure 7 is another schematic diagram of a generation scheme according to an exemplary embodiment.

[0042] Figure 8 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment.

[0043] Figure 9 is a block diagram of a voltage control apparatus of a display panel according to an exemplary embodiment.

[0044] Figure 10 is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] The exemplary embodiments will be described in detail below with reference to the accompanying drawings. The following description is presented in connection with the accompanying drawings in which the same numbers are used in different drawings to refer to the same or similar elements. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0046] The present application provides a voltage control method and device of a display panel, an electronic device and a storage medium. The voltage control method and device of the display panel can dynamically adjust a gate voltage generation circuit based on current working condition information of the display panel to control a gate on a TFT substrate, thereby improving the efficiency of a voltage conversion circuit to save power consumption under the premise of ensuring that the power can be saturated.

[0047] Figure 1 FIG. 1 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment. As shown in FIG. 1, the voltage control method of the display panel is used in an electronic device. The voltage control method of the display panel includes the following steps. Figure 1

[0048] In step 101, current working condition information of a display panel is obtained. The display panel includes a thin film transistor (TFT) substrate.

[0049] The current working condition information of the display panel can be understood as current state information of the display panel. As an example, the current working condition information of a thin film transistor (TFT) display panel can include, but is not limited to, at least one of the following: a current frame rate, a current display brightness (DBV), a current gray scale value, and a current temperature value, etc. The current frame rate, the current display brightness (DBV), and the current gray scale value can be obtained by a display driver chip (DDIC), and the current temperature value can be obtained by a temperature sensor. For example, a temperature sensor can be provided in the electronic device to obtain the current temperature value of the TFT display panel.

[0050] In step 102, a gate target control voltage corresponding to the current working condition information is obtained.

[0051] Alternatively, the gate target control voltage corresponding to the current working condition information can be obtained by searching in a preset lookup table, and can also be obtained by other manners, which are not limited in the present application.

[0052] In some embodiments of the present application, the gate target control voltage can at least include a VGH target voltage value and a VGL target voltage value.

[0053] ​In step 103, the gate voltage generation circuit is adjusted according to the gate target control voltage to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage.

[0054] It should be noted that different gate target control voltages correspond to different target generation schemes, and the gate voltage generation circuit is adjusted based on the corresponding target generation scheme to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage.

[0055] In an embodiment of the present application, the voltage generation circuit can include at least but not limited to charge pump and low dropout linear regulator, etc. The voltage generation circuit can be used to generate a control voltage for the gate, so as to control the gate on the TFT substrate on the display panel by using the control voltage, so as to realize the opening or closing of the TFT.

[0056] In step 104, the gate on the TFT substrate is controlled by using the gate target control voltage.

[0057] According to the voltage control method of the display panel in the embodiment of the present application, the gate voltage generation circuit can be dynamically adjusted according to the current working condition information of the display panel, so as to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage corresponding to the current working condition information, so as to control the gate on the TFT substrate by using the gate target control voltage. Therefore, during the charging process of the display panel, the gate voltage generation circuit is dynamically adjusted by using the current working condition information of the display panel, and the gate on the TFT substrate is controlled by using the output voltage of the dynamically adjusted gate voltage generation circuit. Under the premise of ensuring that the electric energy can be saturated, the efficiency of the gate voltage generation circuit can be improved as much as possible to save power consumption.

[0058] It should be noted that in some embodiments of the present application, the gate target control voltage can include a VGH target voltage value and a VGL target voltage value. The corresponding VGH target voltage value and VGL target voltage value can be determined in a preset lookup table, so as to adjust the output voltage of the gate voltage generation circuit. Alternatively, Figure 2 is a flow chart of a voltage control method of a display panel according to an exemplary embodiment, as shown in Figure 2 The voltage control method of the display panel includes the following steps.

[0059] In step 201, the current working condition information of the display panel is obtained; the display panel includes a thin film transistor TFT substrate.

[0060] In step 202, at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information are determined in a preset lookup table. The number of the determined VGH voltage value and VGL voltage value is the same as the number of information contained in the current working condition information. The term "at least one" can be understood as one or more.

[0061] It should be noted that the preset lookup table can be understood as a VGH / VGL change lookup table constructed based on different working conditions of the TFT display panel, which can be stored in an SRAM (Static Random-Access Memory), and the change lookup table includes the corresponding relationship between different working condition information and VGH / VGL. For example, different gray scale values of the TFT display panel correspond to different VGH voltage values and VGL voltage values. According to the current working condition information of the thin film transistor TFT display panel, at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information are determined in the change lookup table. The VGH target voltage value and the VGL target voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value, for example, the maximum value in the at least one VGH voltage value can be determined as the VGH target voltage value; and the maximum value in the at least one VGL voltage value can be determined as the VGL target voltage value.

[0062] In step 203, the VGH target voltage value and the VGL target voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value.

[0063] It can be understood that since the information contained in the current working condition information can be one or more, when the preset lookup table is searched based on the current working condition information, one or more VGH voltage values and one or more VGL voltage values can be found. For example, when the information contained in the current working condition information is one, one VGH voltage value and one VGL voltage value can be found from the preset lookup table; and when the information contained in the current working condition information is multiple, multiple VGH voltage values and multiple VGL voltage values can be found from the preset lookup table.

[0064] In step 204, the gate voltage generation circuit is adjusted according to the VGH target voltage value and the VGL target voltage value, so as to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0065] It should be noted that different VGH target voltage values and VGL target voltage values correspond to different VGH / VGL generation schemes, and the gate voltage generation circuit is adjusted based on the corresponding generation scheme, so as to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0066] In step 205, the gate on the TFT substrate is controlled by using the VGH target voltage value and the VGL target voltage value.

[0067] According to the voltage control method of the display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information of the display panel are determined in the preset lookup table according to the current working condition information of the display panel, the gate voltage generation circuit is dynamically adjusted according to the VGH target voltage value and the VGL target voltage value, so that the output voltage of the gate voltage generation circuit is adjusted to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, so as to control the gate on the TFT substrate by using the VGH target voltage value and the VGL target voltage value, further improve the efficiency of the voltage conversion circuit, and save the power consumption generated in the voltage control process of the display panel.

[0068] It should be noted that the current working condition information of the thin film transistor TFT display panel can include at least one of the following: current frame rate, current display brightness DBV, current gray scale value, and current temperature value, etc. At least one or more of the current frame rate, the current display brightness DBV, the current gray scale value, and the current temperature value can be used to determine the corresponding VGH target voltage value and VGL target voltage value in the preset lookup table, so as to adjust the gate voltage generation circuit to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value. Alternatively, Figure 3 is a flow chart of a voltage control method of a display panel according to an example embodiment, as shown in Figure 3 The voltage control method of the display panel includes the following steps.

[0069] In step 301, the current working condition information of the display panel is obtained. The current working condition information includes at least one of the following: current frame rate, current display brightness DBV, current gray scale value, and current temperature value.

[0070] In step 302, at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information are determined in a preset lookup table; wherein the number of determined VGH target voltage values and VGL target voltage values is the same as the number of information contained in the current working condition information. The term "at least one" can be understood as one or more.

[0071] It should be noted that the preset lookup table is a VGH / VGL change lookup table constructed based on different working condition information of the display panel, and the working condition information includes at least one of the following: frame rate, DBV, gray scale value, and temperature value. The preset lookup table includes the corresponding relationship between at least one or more information of the frame rate, the DBV, the gray scale value, and the temperature value and the VGH / VGL respectively.

[0072] As an example, when the current working condition information is any one of the current frame rate, the current DBV, the current gray scale value and the current temperature value, assuming that the current working condition information is the current frame rate, the preset lookup table can include the corresponding relationship between the frame rate and VGH / VGL respectively. For example, the preset lookup table can refer to the preset lookup table shown in Figure 4 , Figure 4 The preset lookup table shown in the preset lookup table represents the corresponding relationship between different frame rates and VGH / VGL respectively. In the preset lookup table, one VGH voltage value and one VGL voltage value corresponding to the current frame rate are determined. It can be understood that when the current working condition information is the current DBV, or the current gray scale value, or the current temperature value, the preset lookup table can include the corresponding relationship between the corresponding working condition information and VGH / VGL respectively, such as, when the current working condition information is the current DBV, the preset lookup table can include the corresponding relationship between different DBVs and VGH / VGL respectively; when the current working condition information is the current gray scale value, the preset lookup table can include the corresponding relationship between different gray scale values and VGH / VGL respectively; when the current working condition information is the current temperature value, the preset lookup table can include the corresponding relationship between different temperature values and VGH / VGL respectively.

[0073] As an example, when the current working condition information is any two of the current frame rate, the current DBV, the current gray scale value and the current temperature value, assuming that the current working condition information is the current DBV and the current gray scale value, the preset lookup table can include two tables, one of which includes the corresponding relationship between the current DBV and VGH / VGL respectively, and the other of which includes the corresponding relationship between the current gray scale value and VGH / VGL respectively. In the preset lookup table, one VGH voltage value and one VGL voltage value corresponding to the current DBV, and one VGH voltage value and one VGL voltage value corresponding to the current gray scale value are determined. The form of the preset lookup table can refer to Figure 4 , which will not be described here.

[0074] As an example, when the current working condition information is any three of the current frame rate, the current DBV, the current gray scale value and the current temperature value, assuming that the current working condition information is the current frame rate, the current gray scale value and the current temperature value, the preset lookup table can include three tables, the first table includes the corresponding relationship between the current frame rate and VGH / VGL respectively, the second table includes the corresponding relationship between the current gray scale value and VGH / VGL respectively, and the third table includes the corresponding relationship between the current temperature value and VGH / VGL respectively. In the preset lookup table, one VGH voltage value and one VGL voltage value corresponding to the current frame rate, one VGH voltage value and one VGL voltage value corresponding to the current gray scale value, and one VGH voltage value and one VGL voltage value corresponding to the current temperature value are determined. The form of the preset lookup table can refer to Figure 4 , which will not be described here.

[0075] As an example, when the current working condition information is four of the current frame rate, the current DBV, the current gray scale value and the current temperature value, i.e., the current working condition information is the current frame rate, the current DBV, the current gray scale value and the current temperature value, the preset lookup table can include four tables, wherein the first table includes the corresponding relationship between the current frame rate and VGH / VGL, the second table includes the corresponding relationship between the current DBV and VGH / VGL, the third table includes the corresponding relationship between the current gray scale value and VGH / VGL, and the fourth table includes the corresponding relationship between the current temperature value and VGH / VGL. In the preset lookup table, one VGH voltage value and one VGL voltage value corresponding to the current frame rate, one VGH voltage value and one VGL voltage value corresponding to the current DBV, one VGH voltage value and one VGL voltage value corresponding to the current gray scale value, and one VGH voltage value and one VGL voltage value corresponding to the current temperature value are determined. The form of the preset lookup table can refer to Figure 4 , which will not be described here.

[0076] Optionally, in some embodiments of the present application, for the case that the current working condition is not found in the preset lookup table, a linear interpolation method can be used to calculate the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information. For example, taking the embodiment shown in Figure 4 as an example, it is assumed that the current frame rate is not found in the preset lookup table, but the current frame rate is between frame rate 1 and frame rate 2. According to the VGH voltage value and the VGL voltage value corresponding to the frame rate 1 and the frame rate 2, the VGH target voltage value and the VGL target voltage value corresponding to the current frame rate are calculated by using the linear interpolation method, i.e., the VGH target voltage value corresponding to the current frame rate is calculated according to VGH1 and VGH2, and the VGL target voltage value corresponding to the current frame rate is calculated according to VGL1 and VGL2.

[0077] In step 303, the VGH target voltage value and the VGL target voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value.

[0078] Optionally, the maximum value in the at least one VGH voltage value can be determined as the VGH target voltage value, and the maximum value in the at least one VGL voltage value can be determined as the VGL target voltage value.

[0079] In step 304, the gate voltage generation circuit is adjusted according to the VGH target voltage value and the VGL target voltage value, so as to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage.

[0080] In step 305, the gate on the TFT substrate is controlled by using the VGH target voltage value and the VGL target voltage value.

[0081] In the embodiments of the present application, steps 301, 304 and 305 can be implemented by any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be repeated here.

[0082] According to the voltage control method of the display panel, at least one or more working condition information of the frame rate, the DBV, the gray scale value and the temperature value of the thin film transistor TFT display panel is obtained, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are more accurately determined in the preset lookup table, the gate voltage generation circuit is dynamically adjusted according to the VGH target voltage value and the VGL target voltage value, so that the output voltage of the gate voltage generation circuit is adjusted to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, so that the gate on the TFT substrate is controlled by the VGH target voltage value and the VGL target voltage value. Under the premise of ensuring that the electric energy can be saturated, the efficiency of the gate voltage generation circuit is improved, and the power consumption generated in the voltage control project of the display panel is saved.

[0083] It should be noted that different VGH target voltage values and VGL target voltage values can be generated by different generation schemes, and the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value. Specifically, Figure 5 is a flowchart of a voltage control method of a display panel according to an example embodiment, as shown in Figure 5 The voltage control method of the display panel includes the following steps.

[0084] In step 501, the current working condition information of the display panel is obtained; the display panel includes a thin film transistor TFT substrate.

[0085] In step 502, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are obtained.

[0086] In step 503, the target generation scheme is selected from a plurality of generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value.

[0087] It should be noted that in order to adapt to a variety of different scenarios, in the embodiments of the present application, different VGH target voltage values and VGL target voltage values can be generated by different generation schemes. In some embodiments of the present application, the generation scheme can include a first generation scheme and a second generation scheme, the input voltage of the gate voltage generation circuit in the first generation scheme includes a first voltage and a second voltage, and the input voltage in the second generation scheme includes a third voltage, the third voltage is N times the first voltage, and N is an integer greater than 1. As Figure 6As shown, the input voltage of the gate voltage generation circuit in the first generation scheme includes a first voltage AVDD and a second voltage VCI, and the input voltage of the gate voltage generation circuit in the second generation scheme includes a third voltage AVDD*2. If the sum of the VGH target voltage value and the VGL target voltage value is less than the third voltage and greater than the sum of the first voltage and the second voltage, the second generation scheme is selected as the target generation scheme; if the sum of the VGH target voltage value and the VGL target voltage value is less than or equal to the sum of the first voltage and the second voltage, the first generation scheme is selected as the target generation scheme.

[0088] In step 504, based on the target generation scheme, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0089] For example, assuming that the target generation scheme is determined to be the first generation scheme, the gate voltage generation circuit can be adjusted based on the first generation scheme to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0090] In step 505, the VGH target voltage value and the VGL target voltage value are used to control the gate on the TFT substrate.

[0091] In the embodiments of the present application, steps 501-502 and step 505 can be implemented by any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be repeated.

[0092] According to the voltage control method of the display panel, according to the current working condition information of the display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are determined in the preset lookup table, the target generation scheme is selected from the multiple generation schemes of VGH / VGL according to the VGH target voltage value and the VGL target voltage value, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the VGH target voltage value and the VGL target voltage value are used to control the gate on the TFT substrate, which is suitable for multiple application scenarios. The present application can dynamically adjust the VGH / VGL voltage value under the premise of ensuring that the electric energy can be saturated, and further saves the power consumption generated in the voltage control project of the display panel.

[0093] It should be noted that in addition to the first generation scheme and the second generation scheme, the multiple generation schemes can also include a third generation scheme, such as Figure 7As shown, the input voltage of the gate voltage generation circuit in the first generation scheme includes a first voltage (AVDD) and a second voltage (VCI), the input voltage in the second generation scheme includes a third voltage (ADVV*2), the third voltage is N times of the first voltage, N is an integer greater than 1, and the input voltage in the third generation scheme includes the first voltage (AVDD). Specifically, Figure 8 is a flowchart of a voltage control method of a display panel according to an exemplary embodiment, as shown in Figure 8 The voltage control method of the display panel includes the following steps.

[0094] In step 801, current working condition information of a display panel is acquired; the display panel includes a thin film transistor TFT substrate.

[0095] In step 802, a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information are acquired.

[0096] In step 803, the VGH target voltage value and the VGL target voltage value are compared with a first voltage, a second voltage, and a third voltage. If the sum of the VGH target voltage value and the VGL target voltage value is less than the third voltage and greater than the sum of the first voltage and the second voltage, step 804 is performed; if the sum of the VGH target voltage value and the VGL target voltage value is less than or equal to the sum of the first voltage and the second voltage and greater than the first voltage, step 805 is performed; and if the sum of the VGH target voltage value and the VGL target voltage value is less than or equal to the first voltage, step 806 is performed.

[0097] In step 804, the second generation scheme is selected as a target generation scheme.

[0098] In step 805, the first generation scheme is selected as the target generation scheme.

[0099] In step 806, the third generation scheme is selected as the target generation scheme.

[0100] In step 807, based on the target generation scheme, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0101] In step 808, the VGH target voltage value and the VGL target voltage value are used to control the gate on the TFT substrate.

[0102] In the embodiments of the present application, steps 801-802 and step 808 can be implemented by any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be repeated.

[0103] According to the voltage control method of the display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are determined in the preset lookup table according to the current working condition information of the display panel, the target generation scheme is selected from the plurality of generation schemes of the VGH / VGL according to the VGH target voltage value and the VGL target voltage value, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the gate on the TFT substrate is controlled by using the VGH target voltage value and the VGL target voltage value, which is further suitable for various application scenarios. The VGH / VGL voltage value can be dynamically adjusted under the premise of ensuring that the electric energy can be saturated, and the power consumption generated in the voltage control project of the display panel is saved.

[0104] Figure 9 is a block diagram of a voltage control device of a display panel according to an exemplary embodiment, as shown in Figure 9 The voltage control device 900 of the display panel can include a first acquisition module 901, a second acquisition module 902, an adjustment module 903 and a control module 904.

[0105] Specifically, the first acquisition module 901 is configured to acquire current working condition information of a display panel; the display panel includes a thin film transistor (TFT) substrate.

[0106] The second acquisition module 902 is configured to acquire a gate target control voltage corresponding to the current working condition information.

[0107] The adjustment module 903 is configured to adjust a gate voltage generation circuit according to the gate target control voltage, so as to adjust an output voltage of the gate voltage generation circuit to the gate target control voltage.

[0108] The control module 904 is configured to control a gate on the TFT substrate by using the gate target control voltage.

[0109] In some embodiments of the present application, the gate target control voltage at least includes a VGH target voltage value and a VGL target voltage value, and the second acquisition module 902 is specifically configured to: determine at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information in a preset lookup table; wherein the number of the determined VGH voltage value and the VGL voltage value is the same as the number of information contained in the current working condition information; and determine the VGH target voltage value and the VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value.

[0110] In some embodiments of the present application, the second obtaining module 802 is further configured to: determine the maximum value of the at least one VGH voltage value as the VGH target voltage value; and determine the maximum value of the at least one VGL voltage value as the VGL target voltage value.

[0111] In some embodiments of the present application, the second obtaining module 802 is further configured to: in response to the current working condition information not being found in the preset lookup table, calculate the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information by using a linear interpolation method.

[0112] In some embodiments of the present application, the current working condition information includes at least one of the following: a current frame rate, a current display brightness DBV, a current gray scale value, and a current temperature value; the preset lookup table is a VGH / VGL change lookup table constructed based on different working condition information of the display panel, the working condition information includes at least one of the following: a frame rate, a DBV, a gray scale value, and a temperature value, and the preset lookup table includes a corresponding relationship between at least one or more of the frame rate, the DBV, the gray scale value, and the temperature value and the VGH / VGL, respectively.

[0113] In some embodiments of the present application, the adjusting module 903 is specifically configured to: select a target generation scheme from a plurality of generation schemes of the VGH / VGL according to the VGH target voltage value and the VGL target voltage value; and adjust the gate voltage generation circuit based on the target generation scheme, so as to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.

[0114] In some embodiments of the present application, the generation scheme includes a first generation scheme and a second generation scheme, the input voltage of the gate voltage generation circuit in the first generation scheme includes a first voltage and a second voltage, the input voltage in the second generation scheme includes a third voltage, the third voltage is N times of the first voltage, N is an integer greater than 1; the adjusting module 903 is further configured to: in response to the sum of the VGH target voltage value and the VGL target voltage value being less than the third voltage and greater than the sum of the first voltage and the second voltage, select the second generation scheme as the target generation scheme; and / or, in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the sum of the first voltage and the second voltage, select the first generation scheme as the target generation scheme.

[0115] In some embodiments of the present application, the plurality of generation schemes further includes a third generation scheme, the input voltage in the third generation scheme includes the first voltage; the adjusting module 903 is further configured to: in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the first voltage, select the third generation scheme as the target generation scheme.

[0116] According to the voltage control device of the display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are determined in the preset lookup table according to the current working condition information (at least one or more of the frame rate, the DBV, the gray scale value and the temperature value) of the display panel, the target generation scheme is selected from the plurality of generation schemes of the VGH / VGL according to the VGH target voltage value and the VGL target voltage value, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the gate on the TFT substrate is controlled by using the VGH target voltage value and the VGL target voltage value. It is suitable for various application scenarios. The present application can dynamically adjust the VGH / VGL voltage value under the premise of ensuring that the electric energy can be saturated, thereby saving the power consumption generated in the voltage control project of the display panel.

[0117] Figure 10 is a block diagram of an electronic device 1000 according to an exemplary embodiment. The electronic device 1000 can be, for example, a mobile terminal such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0118] Referring to Figure 10 , the electronic device 1000 can include a thin film transistor (TFT) display panel 1001 and a charging device 1002. The electronic device 1000 further includes one or more of the following components: a first processing component 1003, a first memory 1004, a power supply component 1005, a multimedia component 1006, an audio component 1007, an input / output (I / O) interface 1008, a sensor component 1009, and a communication component 1010. The charging device 1002 includes, but is not limited to, one or more of the following components: a second processing component 1011, a second memory 1012.

[0119] The first processing component 1003 generally controls the overall operation of the electronic device 1000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The first processing component 1003 can include one or more first processors 1020, and the second processing component 1011 can include one or more second processors 1021 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the first processing component 1003 can include one or more modules to facilitate interaction between the first processing component 1003 and other components. For example, the first processing component 1003 can include a multimedia module to facilitate interaction between the multimedia component 1006 and the first processing component 1003.

[0120] The first memory 1004 is configured to store various types of data to support operations of the electronic device 1000. Examples of these data include instructions for any application programs or methods operating on the electronic device 1000, contact data, phonebook data, messages, pictures, videos, etc. The first memory 1004 can be implemented by any type of volatile or nonvolatile memory, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disc, or optical disc.

[0121] The power component 1005 supplies power to various components of the electronic device 1000. The power component 1005 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 1000.

[0122] The multimedia component 1006 includes a screen providing an output interface between the electronic device 1000 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 1006 includes a front camera and / or a back camera. The front camera and / or the back camera can receive external multimedia data when the electronic device 1000 is in an operation mode, such as a photographing mode or a video mode. Each of the front camera and the back camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0123] The audio component 1007 is configured to output and / or input an audio signal. For example, the audio component 1007 includes a microphone (MIC) configured to receive an external audio signal when the electronic device 1000 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the first memory 1004 or transmitted via the communication component 1010. In some embodiments, the audio component 1007 also includes a speaker for outputting an audio signal.

[0124] The I / O interface 1008 provides an interface between the first processing component 1003 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. These buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0125] The sensor component 1009 includes one or more sensors for providing state evaluation of various aspects of the electronic device 1000. For example, the sensor component 1009 can detect an open / closed position of the electronic device 1000, relative positioning of components, such as a display and a keypad of the electronic device 1000, a change in position of the electronic device 1000 or a component of the electronic device 1000, presence or absence of user contact with the electronic device 1000, orientation or acceleration / deceleration / g-force and temperature of the electronic device 1000. The sensor component 1009 can include an accelerometer, a gyroscope, a geonome, a magnetometer, a pressure sensor or a temperature sensor.

[0126] The communication component 1010 is configured to facilitate wired or wireless communication between the electronic device 1000 and other devices. The electronic device 1000 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an example embodiment, the communication component 1010 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 1010 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0127] In example embodiments, the charging device 1002 can be implemented with one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements for performing the above-described methods.

[0128] In exemplary embodiments, there is also provided a non-transitory computer readable storage medium including instructions, such as the second memory 1012 including instructions, that are executable by the second processor 1021 of the charging device 1002 to perform the above-described methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and optical data storage device, and the like.

[0129] In exemplary embodiments, there is also provided a computer program product including a computer program that is executed by the second processor 1021 of the charging device 1002 to perform the above-described methods.

[0130] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0131] It is to be understood that the application is not limited to the precise details of construction and the exemplary embodiments described above and illustrated in the drawings. The scope of the application is to be determined by the terms of the following claims.

Claims

1. A voltage control method for a display panel, characterized in that, include: Obtain the current operating status information of the display panel; The display panel includes a thin-film transistor (TFT) substrate; Obtain the target gate control voltage corresponding to the current operating condition information; According to the gate target control voltage, the gate voltage generating circuit is adjusted to adjust the output voltage of the gate voltage generating circuit to the gate target control voltage. Different gate target control voltages correspond to different generation schemes. The gate voltage generating circuit is adjusted based on the corresponding generation scheme. The generation scheme includes a first generation scheme and a second generation scheme. In the first generation scheme, the input voltage of the gate voltage generating circuit includes a first voltage and a second voltage. In the second generation scheme, the input voltage includes a third voltage. The third voltage is N times the first voltage, where N is an integer greater than 1. The gate on the TFT substrate is controlled using the gate target control voltage.

2. The method according to claim 1, characterized in that, The gate target control voltage includes at least the VGH target voltage value and the VGL target voltage value; The step of acquiring the gate target control voltage corresponding to the current operating condition information includes: In a preset lookup table, at least one VGH voltage value and at least one VGL voltage value corresponding to the current operating condition information are determined; wherein, the number of determined VGH voltage values ​​and VGL voltage values ​​is the same as the number of information contained in the current operating condition information; The target VGH voltage value and the target VGL voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value.

3. The method according to claim 2, characterized in that, Determining the target VGH voltage value and the target VGL voltage value from the at least one VGH voltage value and the at least one VGL voltage value includes: The maximum value among the at least one VGH voltage value is determined as the target VGH voltage value; The maximum value among the at least one VGL voltage value is determined as the target VGL voltage value.

4. The method according to claim 2, characterized in that, The step of acquiring the gate target control voltage corresponding to the current operating condition information further includes: In response to the fact that the current operating condition information is not found in the preset lookup table, the target voltage values ​​of VGH and VGL corresponding to the current operating condition information are calculated by linear interpolation.

5. The method according to any one of claims 2 to 3, characterized in that, The current operating condition information includes at least one of the following: current frame rate, current display brightness DBV, current grayscale value, and current temperature value; The preset lookup table is a VGH / VGL change lookup table constructed based on different operating condition information of the display panel. The operating condition information includes at least one of the following: frame rate, DBV, grayscale value and temperature value. The preset lookup table includes the correspondence between at least one or more of the frame rate, DBV, grayscale value and temperature value and VGH / VGL respectively.

6. The method according to claim 2, characterized in that, The step of adjusting the gate voltage generating circuit according to the gate target control voltage to adjust the output voltage of the gate voltage generating circuit to the gate target control voltage includes: Based on the target voltage value of VGH and the target voltage value of VGL, a target generation scheme is selected from multiple generation schemes of VGH / VGL; Based on the target generation scheme, the gate voltage generation circuit is adjusted to adjust the output voltage of the gate voltage generation circuit to the target voltage values ​​of VGH and VGL.

7. The method according to claim 6, characterized in that, The step of selecting a target generation scheme from multiple generation schemes for VGH / VGL based on the target VGH voltage value and the target VGL voltage value includes: In response to the fact that the sum of the VGH target voltage value and the VGL target voltage value is less than the third voltage and greater than the sum of the first voltage and the second voltage, the second generation scheme is selected as the target generation scheme; And / or, in response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the sum of the first voltage and the second voltage, the first generation scheme is selected as the target generation scheme.

8. The method according to claim 7, characterized in that, The plurality of generation schemes further includes a third generation scheme, wherein the input voltage in the third generation scheme includes the first voltage; the step of selecting a target generation scheme from the plurality of generation schemes for VGH / VGL based on the target VGH voltage value and the target VGL voltage value further includes: In response to the sum of the VGH target voltage value and the VGL target voltage value being less than or equal to the first voltage, the third generation scheme is selected as the target generation scheme.

9. A voltage control device for a display panel, characterized in that, include: The first acquisition module is used to acquire the current operating status information of the display panel; The display panel includes a thin-film transistor (TFT) substrate; The second acquisition module is used to acquire the gate target control voltage corresponding to the current operating condition information; An adjustment module is used to adjust the gate voltage generation circuit according to the gate target control voltage, so as to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage. Different gate target control voltages correspond to different generation schemes. The gate voltage generation circuit is adjusted based on the corresponding generation scheme. The generation scheme includes a first generation scheme and a second generation scheme. In the first generation scheme, the input voltage of the gate voltage generation circuit includes a first voltage and a second voltage. In the second generation scheme, the input voltage includes a third voltage. The third voltage is N times the first voltage, where N is an integer greater than 1. A control module is used to control the gate on the TFT substrate using the gate target control voltage.

10. An electronic device, characterized in that, include: A thin-film transistor (TFT) display panel and a charging device, wherein the charging device includes a processor and a memory for storing processor-executable instructions, wherein the processor executes the instructions to implement the method as described in any one of claims 1 to 8.

11. A computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the method of any one of claims 1 to 8.

12. A computer program product comprising a computer program that, when executed by a processor, implements the method according to any one of claims 1 to 8.

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