CN116741111A - Voltage control method and device for display panel, electronic equipment and storage medium - Google Patents

Voltage control method and device for display panel, electronic equipment and storage medium Download PDF

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Publication number
CN116741111A
CN116741111A CN202210195746.7A CN202210195746A CN116741111A CN 116741111 A CN116741111 A CN 116741111A CN 202210195746 A CN202210195746 A CN 202210195746A CN 116741111 A CN116741111 A CN 116741111A
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China
Prior art keywords
voltage
target
vgh
vgl
voltage value
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CN202210195746.7A
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Chinese (zh)
Inventor
刘金星
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202210195746.7A priority Critical patent/CN116741111A/en
Publication of CN116741111A publication Critical patent/CN116741111A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application relates to a voltage control method and device of a display panel, electronic equipment and a storage medium. Wherein the method comprises the following steps: acquiring current working condition information of a display panel; the display panel includes a thin film transistor TFT substrate; acquiring a grid target control voltage corresponding to the current working condition information; 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; and controlling the grid electrode on the TFT substrate by adopting a grid electrode target control voltage. According to the application, the output voltage of the grid voltage generating circuit is dynamically regulated according to the current working condition information of the display panel, so that the grid on the TFT substrate is controlled by adopting the output voltage, and the efficiency of the grid voltage generating circuit is improved as much as possible on the premise of ensuring that electric energy can be saturated, so that the power consumption is saved.

Description

Voltage control method and device for display panel, electronic equipment and storage medium
Technical Field
The present application relates to the field of display technologies, and in particular, to a voltage control method and apparatus for a display panel, an electronic device, and a storage medium.
Background
The thin film transistor TFT is a special type of Metal Oxide Semiconductor Field Effect Transistor (MOSFET) mainly used in liquid crystal displays. In the TFT display panel driving circuit, VGH (high voltage of gate, high-level gate voltage)/VGL (low voltage of gate, low-level gate voltage) of the TFT display panel plays a role in turning on the TFT to charge the capacitor (correcting the voltage across the capacitor) and turning off the TFT to maintain the capacitor voltage (one field period).
In the related art, the VGH/VGL voltage of the TFT display panel is generated by the low dropout linear regulator after passing through the charge pump by the display panel driving chip, however, too high VGH/VGL can affect the efficiency of the display panel driving chip voltage converting circuit, thereby generating power consumption waste.
Disclosure of Invention
In order to overcome the problems in the related art, the present application provides a voltage control method, apparatus, electronic device, and storage medium for a display panel.
According to a first aspect of an embodiment of the present application, there is provided a voltage control method of a display panel, including:
acquiring current working condition information of a display panel; the display panel includes a Thin Film Transistor (TFT) substrate;
Acquiring a grid target control voltage corresponding to the current working condition information;
according to the grid target control voltage, regulating a grid voltage generating circuit to adjust the output voltage of the grid voltage generating circuit to the grid target control voltage;
and controlling the grid electrode on the TFT substrate by adopting the grid electrode target control voltage.
Optionally, in some embodiments of the present application, the gate target control voltage includes at least a VGH target voltage value and a VGL target voltage value; the obtaining the grid target control voltage corresponding to the current working condition information comprises the following steps: 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; the number of the determined VGH voltage values and the determined VGL voltage values is the same as the number of the information contained in the current working condition information; 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.
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 a maximum value of the at least one VGH voltage value as the VGH target voltage value; and determining the maximum value of the at least one VGL voltage value as the VGL target voltage value.
Optionally, in some embodiments of the present application, the acquiring the gate target control voltage corresponding to the current operating condition information further includes: and in response to the fact that the current working condition information is not found in the preset lookup table, calculating a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information in a linear interpolation mode.
Optionally, in some embodiments of the present application, the current operating condition information includes at least one of the following: the current frame rate, the current display brightness DBV, the current gray scale value and the 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, and the working condition information comprises at least one of the following: the preset lookup table comprises at least one or more information of the frame rate, the DBV, the gray level value and the temperature value, and the corresponding relation between the information and VGH/VGL respectively.
Optionally, in some embodiments of the present application, the 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: 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 a gate voltage generating circuit based on the target generation scheme to adjust an output voltage of the gate voltage generating circuit to the VGH target voltage value and the VGL target voltage value.
Optionally, in some embodiments of the present application, the plurality of generating schemes includes a first generating scheme, in which an input voltage of the gate voltage generating circuit includes a first voltage and a second voltage, and a second generating scheme, in which the input voltage includes a third voltage, the third voltage being N times the first voltage, the N being an integer greater than 1; the 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, including: selecting the second generation scheme as the target generation scheme in response to a sum of the VGH target voltage value and the VGL target voltage value being smaller than the third voltage and larger than a sum of the first voltage and the second voltage; 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.
Optionally, in some embodiments of the present application, the plurality of generating schemes further includes a third generating scheme, wherein the input voltage includes the first voltage; the method further 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 further including: and 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, selecting the third implementation scheme as the target generation scheme.
According to a second aspect of an embodiment of the present application, there is provided a voltage control apparatus of a display panel, including:
the first acquisition module is used for acquiring current working condition information of the display panel; the display panel includes a Thin Film Transistor (TFT) substrate;
the second acquisition module is used for acquiring grid target control voltage corresponding to the current working condition information;
the adjusting module is used for adjusting the grid voltage generating circuit according to the grid target control voltage so as to adjust the output voltage of the grid voltage generating circuit to the grid target control voltage;
and the control module is used for controlling the grid electrode on the TFT substrate by adopting the grid electrode target control voltage.
Optionally, in some embodiments of the present application, the gate target control voltage includes at least a VGH target voltage value and a VGL target voltage value; the second obtaining module is specifically configured to: 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; the number of the determined VGH voltage values and the determined VGL voltage values is the same as the number of the information contained in the current working condition information; 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.
Optionally, in some embodiments of the present application, the second obtaining module is further configured to: determining a maximum value of the at least one VGH voltage value as the VGH target voltage value; and determining the maximum value of the at least one VGL voltage value as the VGL target voltage value.
Optionally, in some embodiments of the present application, the second obtaining module is further configured to: and in response to the fact that the current working condition information is not found in the preset lookup table, calculating a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information in a linear interpolation mode.
Optionally, in some embodiments of the present application, the current operating condition information includes at least one of the following: the current frame rate, the current display brightness DBV, the current gray scale value and the 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, and the working condition information comprises at least one of the following: the preset lookup table comprises at least one or more information of the frame rate, the DBV, the gray level value and the temperature value, and the corresponding relation between the information and VGH/VGL respectively.
Optionally, in some embodiments of the present application, the adjusting module is specifically configured to: 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 a gate voltage generating circuit based on the target generation scheme to adjust an output voltage of the gate voltage generating circuit to the VGH target voltage value and the VGL target voltage value.
Optionally, in some embodiments of the present application, the plurality of generating schemes includes a first generating scheme, in which an input voltage of the gate voltage generating circuit includes a first voltage and a second voltage, and a second generating scheme, in which the input voltage includes a third voltage, the third voltage being N times the first voltage, the N being an integer greater than 1; the adjustment module is also for: selecting the second generation scheme as the target generation scheme in response to a sum of the VGH target voltage value and the VGL target voltage value being smaller than the third voltage and larger than a sum of the first voltage and the second voltage; 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.
Optionally, in some embodiments of the present application, the plurality of generating schemes further includes a third generating scheme, wherein the input voltage includes the first voltage; the adjustment module is also for: and 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, selecting the third implementation scheme as the target generation scheme.
According to a third aspect of an embodiment of the present application, there is provided an electronic apparatus including: the charging device comprises a processor and a memory for storing instructions executable by the processor, and the voltage control method of the display panel in the first aspect is realized when the processor executes the instructions.
According to a fourth aspect of embodiments of the present application, there is provided a computer readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform the method of the first aspect.
According to a fifth aspect of embodiments of the present application, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect described above.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects: according to the current working condition information of the TFT display panel of the thin film transistor, a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information are obtained, and the output voltage of the grid voltage generating circuit is dynamically regulated according to the VGH target voltage value and the VGL target voltage value so as to be regulated into the VGH target voltage value and the VGL target voltage value, so that the grid on the TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, and the efficiency of the grid voltage generating circuit is improved on the premise that the saturation of electric energy is ensured, so that the power consumption is saved.
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.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment.
Fig. 4 is a schematic diagram of a preset lookup table shown according to an exemplary embodiment.
Fig. 5 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment.
FIG. 6 is a schematic diagram illustrating a generation scheme according to an example embodiment.
Fig. 7 is a schematic diagram illustrating another generation scheme according to an example embodiment.
Fig. 8 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating a voltage control apparatus of a display panel according to an exemplary embodiment.
Fig. 10 is a block diagram of an electronic device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
The application provides a voltage control method, a device, electronic equipment and a storage medium of a display panel, which can dynamically adjust a grid voltage generating circuit based on the current working condition information of the display panel to control a grid on a TFT substrate, so that the efficiency of a voltage conversion circuit can be improved on the premise of ensuring that electric energy can be saturated, and power consumption is saved.
Fig. 1 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment, which is used in an electronic device, as shown in fig. 1. The voltage control method of the display panel comprises the following steps.
In step 101, current working condition information of a display panel is obtained; the display panel includes a thin film transistor TFT substrate.
The current working condition information of the display panel can be understood as current state information of the display panel. As one example, the current operating condition information of the thin film transistor TFT display panel may include, but is not limited to, at least one of: current frame rate, current display brightness DBV, current gray scale value, current temperature value, etc. Wherein, the current frame rate, the current display brightness DBV and the current gray scale value can be obtained through DDIC (display driving chip), and the current temperature value can be obtained through a temperature sensor. For example, a temperature sensor may be provided in the electronic device, through which a current temperature value of the TFT display panel is obtained.
In step 102, a gate target control voltage corresponding to the current operating condition information is obtained.
Alternatively, the gate target control voltage corresponding to the current operating condition information may be obtained by searching in a preset lookup table, and the gate target control voltage corresponding to the current operating condition information may also be obtained by other manners.
In some embodiments of the present application, the gate target control voltage may include at least: VGH target voltage value and VGL target voltage value.
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.
The 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 schemes to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage.
In embodiments of the present application, the voltage generation circuit may include, but is not limited to, at least a charge pump, a low dropout linear regulator, and the like. The voltage generating circuit can be used for generating a control voltage of the grid electrode so as to control the grid electrode on the TFT substrate on the display panel by using the control voltage to realize the on or off of the TFT.
In step 104, the gate electrode on the TFT substrate is controlled using the gate target control voltage.
According to the voltage control method of the display panel, the grid voltage generating circuit can be dynamically adjusted according to the current working condition information of the display panel, so that the output voltage of the grid voltage generating circuit is adjusted to be the grid target control voltage corresponding to the current working condition information, and the grid on the TFT substrate is controlled by the grid target control voltage. Therefore, in the charging process of the display panel, the grid voltage generating circuit is dynamically adjusted according to the current working condition information of the display panel, and the grid on the TFT substrate is controlled by utilizing the output voltage of the dynamically adjusted grid voltage generating circuit, so that the efficiency of the grid voltage generating circuit can be improved as much as possible on the premise of ensuring that electric energy can be saturated, and the power consumption is saved.
It should be noted that, in some embodiments of the present application, the gate target control voltage may include a VGH target voltage value and a VGL target voltage value. The corresponding VGH target voltage value and VGL target voltage value may be determined in a preset lookup table, thereby adjusting the output voltage of the gate voltage generating circuit. Alternatively, fig. 2 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment, and the voltage control method of the display panel includes the following steps as shown in fig. 2.
In step 201, current working condition information of a display panel is obtained; the display panel includes a thin film transistor TFT substrate.
In step 202, at least one VGH voltage value and at least one VGL voltage value corresponding to the current operating mode information are determined in a preset lookup table. The number of the determined VGH voltage values and the number of the determined VGL voltage values are the same as the number of the information contained in the current working condition information. Wherein the term "at least one" is understood as one or more.
It should be noted that, the preset lookup table may be understood as a VGH/VGL change lookup table constructed based on different working conditions of the TFT display panel, and may be stored in an SRAM (Static Random-Access Memory), where the change lookup table includes corresponding relations between different working condition information and VGH/VGL respectively. For example, different gray scale values of the TFT display panel correspond to different VGH voltage values and VGL voltage values. And determining at least one VGH voltage value and at least one VGL voltage value corresponding to the current working condition information in a change lookup table according to the current working condition information of the thin film transistor TFT display panel. Determining a VGH target voltage value and a VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value, for example, a maximum value of the at least one VGH voltage value may be determined as the VGH target voltage value; the maximum value of the at least one VGL voltage value is determined as the VGL target voltage value.
In step 203, a VGH target voltage value and a VGL target voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value.
It will be appreciated that, since the information included in the current operating condition information may be one or more, when searching the preset lookup table based on the current operating condition information, one or more VGH voltage values and one or more VGL voltage values may be searched. For example, when the information included in the current working condition information is one, a VGH voltage value and a VGL voltage value may be found from a preset lookup table; when the information contained in the current working condition information is a plurality of, a plurality of VGH voltage values and a plurality of VGL voltage values can be searched from a preset lookup table.
In step 204, the gate voltage generation circuit is adjusted according to the VGH target voltage value and the VGL target voltage value to adjust the output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value.
The 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 schemes 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.
In step 205, the gate electrode on the TFT substrate is controlled using the VGH target voltage value and the VGL target voltage value.
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 grid voltage generating circuit is dynamically adjusted according to the VGH target voltage value and the VGL target voltage value, so that the output voltage of the grid voltage generating circuit is adjusted to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, the grid on the TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, the efficiency of the voltage converting circuit is further improved, and the power consumption generated in the voltage control engineering of the display panel is saved.
It should be noted that the current operating condition information of the TFT display panel may include at least one of, but not limited to: the current frame rate, the current display brightness DBV, the current gray-scale value, the current temperature value, and the like may determine a corresponding VGH target voltage value and VGL target voltage value in a preset lookup table based on 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, thereby adjusting the gate voltage generation circuit to adjust an output voltage of the gate voltage generation circuit to the VGH target voltage value and the VGL target voltage value. Alternatively, fig. 3 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment, and the voltage control method of the display panel includes the following steps as shown in fig. 3.
In step 301, current operating mode information of a display panel is acquired. The current working condition information comprises 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.
In step 302, determining at least one VGH voltage value and at least one VGL voltage value corresponding to the current operating mode information in a preset lookup table; the number of the determined VGH target voltage values and the VGL target voltage values is the same as the number of the information contained in the current working condition information. Wherein the term "at least one" is understood as one or more.
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: the preset lookup table comprises at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value, and the corresponding relation between the at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value and VGH/VGL respectively.
As an example, when the current operating condition information is any one of the current frame rate, the current DBV, the current gray level value, and the current temperature value, assuming that the current operating condition information is the current frame rate, the preset lookup table may include correspondence between the frame rates and VGH/VGL, respectively. For example, referring to fig. 4, the preset lookup table shown in fig. 4 indicates correspondence between different frame rates and VGH/VGL, respectively. And determining a VGH voltage value and a VGL voltage value corresponding to the current frame rate in a preset lookup table. It can be understood that when the current working condition information is the current DBV, or the current gray level value or the current temperature value, the preset lookup table may include corresponding relations between the corresponding working condition information and the VGH/VGL, for example, when the current working condition information is the current DBV, the preset lookup table may include corresponding relations between different DBVs and the VGH/VGL; the current working condition information is a current gray level value, and the preset lookup table can comprise corresponding relations between different gray level values and VGH/VGL respectively; the current working condition information is a current temperature value, and the preset lookup table can comprise corresponding relations between different temperature values and VGH/VGL respectively.
As an example, when the current working condition information is any two of the current frame rate, the current DBV, the current gray level value and the current temperature value, assuming that the current working condition information is the current DBV and the current gray level value, the preset lookup table may include two tables, one of which includes a corresponding relationship between the current DBV and VGH/VGL, and the other of which includes a corresponding relationship between the current gray level value and VGH/VGL. And determining 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 level value in a preset lookup table. The form of the preset lookup table may refer to fig. 4, and will not be described herein.
As an example, when the current operating condition information is any three of the current frame rate, the current DBV, the current gray level value, and the current temperature value, assuming that the current operating condition information is the current frame rate, the current gray level value, and the current temperature value, three tables may be included in the preset lookup table, wherein the first table includes correspondence between the current frame rate and VGH/VGL, the second table includes correspondence between the current gray level value and VGH/VGL, and the third table includes correspondence between the current temperature value and VGH/VGL. 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 in a preset lookup table. The form of the preset lookup table may refer to fig. 4, and will not be described herein.
As an example, when the current working condition information is four of the current frame rate, the current DBV, the current gray level value and the current temperature value, that is, the current working condition information is the current frame rate, the current DBV, the current gray level value and the current temperature value, the preset lookup table may include four tables, where the first table includes a corresponding relation between the current frame rate and VGH/VGL, the second table includes a corresponding relation between the current DBV and VGH/VGL, the third table includes a corresponding relation between the current gray level value and VGH/VGL, and the fourth table includes a corresponding relation between the current temperature value and VGH/VGL. 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 in a preset lookup table. The form of the preset lookup table may refer to fig. 4, and will not be described herein.
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 manner may 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 FIG. 4 as an example, assume that the current frame rate is not found in the preset lookup table, but is at the frame rate 1 To frame rate 2 Between the ranges of (1) according to the frame rate 1 And frame rate 2 Corresponding VGH voltage value and VGL voltage value, adopting linear interpolation mode to calculate VGH target voltage value and VGL target voltage value corresponding to current frame rate, i.e. according to VGH 1 With VGH 2 Calculating VGH target voltage value corresponding to the current frame rate according to VGL 1 With VGL 2 And calculating a VGL target voltage value corresponding to the current frame rate.
In step 303, a VGH target voltage value and a VGL target voltage value are determined from the at least one VGH voltage value and the at least one VGL voltage value.
Alternatively, the maximum value of the at least one VGH voltage value may be determined as the VGH target voltage value, and the maximum value of the at least one VGL voltage value may be determined as the VGL target voltage value.
In step 304, the gate voltage generation circuit is adjusted according to the VGH target voltage value and the VGL target voltage value to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage.
In step 305, the gate electrode on the TFT substrate is controlled using the VGH target voltage value and the VGL target voltage value.
In the embodiment of the present application, step 301, step 304, and step 305 may be implemented by any one of the embodiments of the present application, which is not limited to this embodiment, and is not repeated.
According to the voltage control method of the display panel, according to at least one or more working condition information of the frame rate, DBV, gray scale value and temperature value of the TFT display panel, the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information are determined more accurately in the preset lookup table, the grid voltage generating circuit is dynamically regulated according to the VGH target voltage value and the VGL target voltage value, so that the output voltage of the grid voltage generating circuit is regulated to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, the grid on the TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, the efficiency of the grid voltage generating circuit is improved on the premise that the saturation of electric energy can be ensured, and the power consumption generated in the voltage control engineering of the display panel is saved.
It should be noted that different VGH target voltage values and VGL target voltage values may adopt different generation schemes, and the gate voltage generating circuit may be adjusted to adjust the output voltage of the gate voltage generating circuit to the VGH target voltage value and the VGL target voltage value. Specifically, fig. 5 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment, and the voltage control method of the display panel includes the following steps as shown in fig. 5.
In step 501, current working condition information of a display panel is obtained; the display panel includes a thin film transistor TFT substrate.
In step 502, a VGH target voltage value and a VGL target voltage value corresponding to the current operating mode information are obtained.
In step 503, a target generation scheme is selected from among a plurality of generation schemes of VGH/VGL according to the VGH target voltage value and the VGL target voltage value.
It should be noted that, in order to be able to adapt to a plurality of different scenarios, in an embodiment of the present application, different VGH target voltage values and VGL target voltage values may be generated using different generation schemes. In some embodiments of the present application, the generating scheme may include a first generating scheme in which the input voltage of the gate voltage generating circuit includes a first voltage and a second voltage, and a second generating scheme in which the input voltage includes a third voltage N times the first voltage, where N is an integer greater than 1. As shown in fig. 6, the input voltage of the gate voltage generating circuit in the first generation scheme includes a first voltage AVDD and a second voltage VCI, and the input voltage of the gate voltage generating 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 smaller than the third voltage and larger than the sum of the first voltage and the second voltage, selecting the second generation scheme as a target generation scheme; and if the sum of the VGH target voltage value and the VGL target voltage value is smaller than or equal to the sum of the first voltage and the second voltage, selecting the first generation scheme as the target generation scheme.
In step 504, the gate voltage generation circuit is adjusted 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.
For example, assuming that the target generation scheme is determined to be the first generation scheme, the gate voltage generation circuit may 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.
In step 505, the gate electrode on the TFT substrate is controlled using the VGH target voltage value and the VGL target voltage value.
In the embodiment of the present application, steps 501 to 502 and 505 may be implemented by any one of the embodiments of the present application, which is not limited to this embodiment, and is not repeated.
According to the voltage control method of the display panel, according to the current working condition information of the display panel, a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information are determined in a preset lookup table, a 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, a grid voltage generation circuit is regulated, so that the output voltage of the grid voltage generation circuit is regulated to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the grid on the TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, so that the voltage control method is applicable to various application scenes. The application can dynamically adjust the VGH/VGL voltage value on the premise of ensuring that the electric energy can be saturated, and further saves the power consumption generated in the voltage control over-engineering of the display panel.
It should be noted that, in addition to the first generation scheme and the second generation scheme, a third generation scheme may be further included in the multiple generation schemes, as shown in fig. 7, 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 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, fig. 8 is a flowchart illustrating a voltage control method of a display panel according to an exemplary embodiment, and the voltage control method of the display panel includes the following steps as shown in fig. 8.
In step 801, current operating mode information of a display panel is obtained; the display panel includes a thin film transistor TFT substrate.
In step 802, a VGH target voltage value and a VGL target voltage value corresponding to the current operating mode information are obtained.
In step 803, the VGH target voltage value and the VGL target voltage value are compared with the first voltage, the second voltage, and the 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, then 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, then step 805 is performed; 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.
In step 804, the second generation scheme is selected as the target generation scheme.
In step 805, a first generation scheme is selected as a target generation scheme.
In step 806, the third generation scheme is selected as the target generation scheme.
In step 807, the gate voltage generation circuit is adjusted 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.
In step 808, the gate electrode on the TFT substrate is controlled using the VGH target voltage value and the VGL target voltage value.
In the embodiment of the present application, steps 801 to 802 and 808 may be implemented by any one of the embodiments of the present application, which is not limited to this embodiment, and is not repeated.
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 a plurality of generation schemes of VGH/VGL according to the VGH target voltage value and the VGL target voltage value, the grid voltage generation circuit is regulated, so that the output voltage of the grid voltage generation circuit is regulated to the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the grid on the TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, so that the voltage control method is further suitable for various application scenes. The application can dynamically adjust the VGH/VGL voltage value on the premise of ensuring that the electric energy can be saturated, and saves the power consumption generated in the voltage control over-engineering of the display panel.
Fig. 9 is a block diagram illustrating a voltage control apparatus of a display panel according to an exemplary embodiment, and as shown in fig. 9, the voltage control apparatus 900 of the display panel may include: a first acquisition module 901, a second acquisition module 902, an adjustment module 903, and a control module 904.
Specifically, a first obtaining module 901, configured to obtain current working condition information of a display panel; the display panel includes a thin film transistor TFT substrate.
And a second obtaining module 902, configured to obtain a gate target control voltage corresponding to the current operating mode information.
The adjusting module 903 is configured to adjust the gate voltage generating circuit according to the gate target control voltage, so as to adjust the output voltage of the gate voltage generating circuit to the gate target control voltage.
And a control module 904 for controlling the gate electrode on the TFT substrate by using the gate target control voltage.
In some embodiments of the present application, the gate target control voltage includes at least a VGH target voltage value and a VGL target voltage value, and the second obtaining module 902 is specifically configured to: 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; the number of the determined VGH voltage values and the VGL voltage values is the same as the number of the information contained in the current working condition information; and determining a VGH target voltage value and a VGL target voltage value from the at least one VGH voltage value and the at least one VGL voltage value.
In some embodiments of the present application, the second acquisition module 802 is further configured to: determining a maximum value of the at least one VGH voltage value as a VGH target voltage value; the maximum value of the at least one VGL voltage value is determined as the VGL target voltage value.
In some embodiments of the present application, the second acquisition module 802 is further configured to: and in response to the fact that the current working condition information is not found in the preset lookup table, calculating a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information in a linear interpolation mode.
In some embodiments of the present application, the current operating condition information includes at least one of: the current frame rate, the current display brightness DBV, the current gray scale value and the 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, and the working condition information comprises at least one of the following: the preset lookup table comprises at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value, and the corresponding relation between the at least one or more information of the frame rate, the DBV, the gray scale value and the temperature value and VGH/VGL respectively.
In some embodiments of the present application, the adjustment module 903 is specifically configured to: 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; the gate voltage generating circuit is adjusted based on the target generation scheme to adjust the output voltage of the gate voltage generating circuit to a VGH target voltage value and a VGL target voltage value.
In some embodiments of the present application, the generating scheme includes a first generating scheme, in which an input voltage of the gate voltage generating circuit includes a first voltage and a second voltage, and a second generating scheme, in which the input voltage includes a third voltage, N times the first voltage, N being an integer greater than 1; the adjustment 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, selecting the second generation scheme as a 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.
In some embodiments of the application, the plurality of generation schemes further includes a third generation scheme in which the input voltage includes the first voltage; the adjustment module 903 is further configured to: and 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, selecting the third implementation scheme as the target generation scheme.
According to the voltage control device of the display panel, according to the current working condition information (at least one or more of a frame rate, a DBV, a gray level value and a temperature value) of the display panel, a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information are determined in a preset lookup table, a target generation scheme is selected from multiple generation schemes of VGH/VGL according to the VGH target voltage value and the VGL target voltage value, a grid voltage generation circuit is regulated, so that the output voltage of the grid voltage generation circuit is regulated to be the VGH target voltage value and the VGL target voltage value corresponding to the current working condition information, and the grid on a TFT substrate is controlled by adopting the VGH target voltage value and the VGL target voltage value, so that the voltage control device is suitable for multiple application scenes. The application can dynamically adjust the VGH/VGL voltage value on the premise of ensuring that the electric energy can be saturated, and saves the power consumption generated in the voltage control over-engineering of the display panel.
Fig. 10 is a block diagram of an electronic device 1000, shown in accordance with an exemplary embodiment. For example, electronic device 1000 may be a mobile terminal such as a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, and the like.
Referring to fig. 10, the electronic device 1000 may include: a thin film transistor TFT display panel 1001 and a charging device 1002. The electronic device 1000 also 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 communications component 1010. The charging device 1002 includes, but is not limited to, one or more of the following: a second processing component 1011, and a second memory 1012.
The first processing component 1003 generally controls overall operation of the electronic device 1000, such as operations associated with display, telephone call, data communication, camera operations, and recording operations. The first processing component 1003 may include one or more first processors 1020 and the second processing component 1011 may include one or more second processors 1021 to execute instructions to perform all or part of the steps of the methods described above. Further, the first processing component 1003 may include one or more modules to facilitate interaction between the first processing component 1003 and other components. For example, the first processing component 1003 may include a multimedia module to facilitate interaction between the multimedia component 1006 and the first processing component 1003.
The first memory 1004 is configured to store various types of data to support operations at the electronic device 1000. Examples of such data include instructions for any application or method operating on the electronic device 1000, contact data, phonebook data, messages, pictures, videos, and so forth. The first memory 1004 may be implemented by any type or combination of volatile or nonvolatile memory devices 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 or optical disk.
The power supply assembly 1005 provides power to the various components of the electronic device 1000. The power supply component 1005 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 1000.
The multimedia component 1006 includes a screen between the electronic device 1000 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1006 includes a front-facing camera and/or a rear-facing camera. When the electronic device 1000 is in an operational mode, such as a shooting mode or a video mode, the front-facing camera and/or the rear-facing camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 1007 is configured to output and/or input audio signals. For example, the audio component 1007 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 1000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may 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 audio signals.
The I/O interface 1008 provides an interface between the first processing component 1003 and a peripheral interface module, which may be a keyboard, click wheel, button, or the like. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 1009 includes one or more sensors for providing status assessment of various aspects of the electronic device 1000. For example, the sensor assembly 1009 may detect an on/off state of the electronic device 1000, a relative positioning of the components, such as a display and keypad of the electronic device 1000, the sensor assembly 1009 may also detect a change in position of the electronic device 1000 or one of the components in the electronic device 1000, the presence or absence of a user's contact with the electronic device 1000, an orientation or acceleration/deceleration of the electronic device 1000, and a change in temperature of the electronic device 1000. The sensor assembly 1009 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 1009 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1009 may further include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 1010 is configured to facilitate communication between the electronic device 1000 and other devices, either wired or wireless. The electronic device 1000 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1010 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1010 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the charging apparatus 1002 may be implemented by 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, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as a second memory 1012, including instructions executable by the second processor 1021 of the charging device 1002 to perform the above-described method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
In an exemplary embodiment, a computer program product is also provided, comprising a computer program to be executed by the second processor 1021 of the charging device 1002 to perform the above-described method.
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. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (12)

1. A voltage control method of a display panel, comprising:
acquiring current working condition information of a display panel; the display panel includes a Thin Film Transistor (TFT) substrate;
Acquiring a grid target control voltage corresponding to the current working condition information;
according to the grid target control voltage, regulating a grid voltage generating circuit to adjust the output voltage of the grid voltage generating circuit to the grid target control voltage;
and controlling the grid electrode on the TFT substrate by adopting the grid electrode target control voltage.
2. The method of claim 1, wherein the gate target control voltage comprises at least a VGH target voltage value and a VGL target voltage value; the obtaining the grid target control voltage corresponding to the current working condition information comprises the following steps:
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; the number of the determined VGH voltage values and the determined VGL voltage values is the same as the number of the information contained in the current working condition information;
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.
3. The method of claim 2, wherein 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 comprises:
Determining a maximum value of the at least one VGH voltage value as the VGH target voltage value;
and determining the maximum value of the at least one VGL voltage value as the VGL target voltage value.
4. The method of claim 2, wherein the obtaining the gate target control voltage corresponding to the current operating condition information further comprises:
and in response to the fact that the current working condition information is not found in the preset lookup table, calculating a VGH target voltage value and a VGL target voltage value corresponding to the current working condition information in a linear interpolation mode.
5. A method according to any one of claims 2 to 3, wherein the current operating condition information comprises at least one of: the current frame rate, the current display brightness DBV, the current gray scale value and the 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, and the working condition information comprises at least one of the following: the preset lookup table comprises at least one or more information of the frame rate, the DBV, the gray level value and the temperature value, and the corresponding relation between the information and VGH/VGL respectively.
6. The method of claim 2, wherein adjusting the gate voltage generation circuit to adjust the output voltage of the gate voltage generation circuit to the gate target control voltage according to the gate target control voltage comprises:
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 a gate voltage generating circuit based on the target generation scheme to adjust an output voltage of the gate voltage generating circuit to the VGH target voltage value and the VGL target voltage value.
7. The method of claim 6, wherein the plurality of generation schemes comprises a first generation scheme in which the input voltage of the gate voltage generation circuit comprises a first voltage and a second voltage, and a second generation scheme in which the input voltage comprises a third voltage that is N times the first voltage, the N being an integer greater than 1; the 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, including:
selecting the second generation scheme as the target generation scheme in response to a sum of the VGH target voltage value and the VGL target voltage value being smaller than the third voltage and larger than a sum of the first voltage and the second voltage;
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.
8. The method of claim 7, wherein the plurality of generation schemes further comprises a third generation scheme in which the input voltage comprises the first voltage; the method further 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 further including:
and 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, selecting the third implementation scheme as the target generation scheme.
9. A voltage control apparatus for a display panel, comprising:
the first acquisition module is used for acquiring current working condition information of the display panel; the display panel includes a Thin Film Transistor (TFT) substrate;
the second acquisition module is used for acquiring grid target control voltage corresponding to the current working condition information;
the adjusting module is used for adjusting the grid voltage generating circuit according to the grid target control voltage so as to adjust the output voltage of the grid voltage generating circuit to the grid target control voltage;
And the control module is used for controlling the grid electrode on the TFT substrate by adopting the grid electrode target control voltage.
10. An electronic device, comprising: a thin film transistor, TFT, display panel and a charging device, wherein the charging device comprises a processor, a memory for storing processor executable instructions, which processor when executed implements the method of any one of claims 1 to 8.
11. A computer readable storage medium, which when executed by a processor of an electronic device, causes the electronic device to perform the method of any of claims 1 to 8.
12. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 8.
CN202210195746.7A 2022-03-01 2022-03-01 Voltage control method and device for display panel, electronic equipment and storage medium Pending CN116741111A (en)

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