CN115394228A - Voltage control method, device, equipment, medium and product - Google Patents

Voltage control method, device, equipment, medium and product Download PDF

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Publication number
CN115394228A
CN115394228A CN202211001496.5A CN202211001496A CN115394228A CN 115394228 A CN115394228 A CN 115394228A CN 202211001496 A CN202211001496 A CN 202211001496A CN 115394228 A CN115394228 A CN 115394228A
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voltage
signal line
target
voltage signal
level
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叶帅
严银喆
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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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

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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application discloses a voltage control method, a voltage control device, voltage control equipment, voltage control media and voltage control products, and relates to the technical field of display. The voltage control method comprises the following steps: acquiring parameter information for controlling a VGH voltage of a pixel circuit, wherein the parameter information comprises a dimming state of an electronic device and one of the following items: panel temperature, display brightness; determining a VGH target voltage according to the parameter information; and controlling the VGH voltage to be the VGH target voltage. According to the embodiment of the application, the power consumption of the driving integrated circuit for generating the VGH voltage can be reduced.

Description

Voltage control method, device, equipment, medium and product
Technical Field
The present application relates to display technologies, and in particular, to a voltage control method, device, apparatus, medium, and product.
Background
A high-level voltage signal line (VGH) voltage of the pixel circuit is an on voltage of a Thin Film Transistor (TFT) in the pixel circuit of the screen of the electronic device.
In the related art, in order to avoid the occurrence of the screen-split condition when the screen of the electronic device is at a high temperature, the VGH voltage is usually set to a large constant voltage. This results in high power consumption of the Driver Integrated Circuit (IC) that generates the VGH voltage.
Disclosure of Invention
Embodiments of the present application provide a voltage control method, apparatus, device, medium, and product, which can solve the problem of high power consumption of a Driver IC generating a VGH voltage.
In a first aspect, an embodiment of the present application provides a voltage control method, including:
acquiring parameter information for controlling a VGH voltage of a pixel circuit, wherein the parameter information comprises a dimming state of an electronic device and one of the following items: panel temperature, display Brightness (DBV);
determining a VGH target voltage according to the parameter information;
and controlling the VGH voltage to be the VGH target voltage.
In a second aspect, an embodiment of the present application provides a voltage control apparatus, including:
an obtaining module, configured to obtain parameter information of a VGH voltage for controlling a pixel circuit, where the parameter information includes a dimming state of an electronic device and one of: panel temperature, display brightness;
the determining module is used for determining the VGH target voltage according to the parameter information;
and the control module is used for controlling the VGH voltage to be the VGH target voltage.
In a third aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory storing computer program instructions; the voltage control method of the first aspect is implemented when the processor executes computer program instructions.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored, and the computer program instructions, when executed by a processor, implement the voltage control method of the first aspect.
In a fifth aspect, the present application provides a computer program product, and instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to execute the voltage control method according to the first aspect.
In the embodiment of the present application, by obtaining parameter information for controlling the VGH voltage of the pixel circuit, the parameter information includes a dimming state of the electronic device and one of the following items: panel temperature, display brightness; determining a VGH target voltage according to the parameter information; and controlling the VGH voltage to be the VGH target voltage. Therefore, the VGH voltage can be dynamically adjusted according to the parameter information of the electronic equipment, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of voltage control provided in the related art;
fig. 2 is a schematic flowchart of a voltage control method according to an embodiment of the present application;
FIG. 3 is a first schematic diagram of voltage control provided by an embodiment of the present application;
FIG. 4 is a second schematic diagram of voltage control provided by an embodiment of the present application;
FIG. 5 is a third schematic diagram of voltage control provided by an embodiment of the present application;
FIG. 6 is a fourth schematic diagram of voltage control provided by an embodiment of the present application;
FIG. 7 is a fifth exemplary diagram of voltage control provided by an embodiment of the present application;
fig. 8 is a schematic structural diagram of a voltage control apparatus according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
In the related art, the VGH voltage of the pixel circuit is set to a large constant voltage (usually 8V), and the VGH voltage is controlled to the set large constant voltage when the VGH voltage is controlled, and the large constant voltage is not changed by the DBV and is not changed by the panel temperature. As shown in fig. 1. The Driver IC generating the VGH voltage consumes a high power due to the control of the VGH voltage to the set large constant voltage. In order to reduce power consumption of a Driver IC generating a VGH voltage, embodiments of the present application provide a voltage control method, apparatus, device, medium, and product.
The voltage control method, apparatus, device, medium, and product provided by the embodiments of the present application are described in detail with reference to the accompanying drawings.
Fig. 2 is a schematic flowchart of a voltage control method according to an embodiment of the present application. As shown in fig. 2, the voltage control method may include:
s201: acquiring parameter information for controlling a VGH voltage of a pixel circuit, wherein the parameter information comprises a dimming state of an electronic device and one of the following items: panel temperature, display brightness;
s202: determining a VGH target voltage according to the parameter information;
s203: and controlling the VGH voltage to be the VGH target voltage.
Specific implementations of the above steps will be described in detail below.
In the embodiment of the present application, by obtaining parameter information for controlling the VGH voltage of the pixel circuit, the parameter information includes a dimming state of the electronic device and one of the following items: panel temperature, display brightness; determining a VGH target voltage according to the parameter information; and controlling the VGH voltage to be the VGH target voltage. Therefore, the VGH voltage can be dynamically adjusted according to the parameter information of the electronic equipment, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of embodiments of the present application, the dimming state may be determined by a number of pulses of an Emission (EM) signal of an array Emission driver on array (EOA) circuit. The dimming state is a state for dimming a screen of the electronic device, and the dimming state includes an on state and an off state. When the pulse number of the EM signal is greater than 1, the dimming state is an on state, and when the pulse number of the EM signal is equal to 1, the dimming state is an off state.
In some possible implementations of embodiments of the present application, the panel temperature may be acquired by a temperature sensor. And acquiring the display brightness by executing the current screen brightness acquisition function.
In some possible implementations of embodiments of the present application, the parameter information includes: dimming state and panel temperature; s202 may include: under the condition that the dimming state is an on state, determining a VGH target voltage according to a corresponding relation between a VGH voltage and a panel temperature, wherein the corresponding relation between the VGH voltage and the panel temperature is that the VGH voltage gradually increases along with the rise of the panel temperature and gradually decreases along with the reduction of the panel temperature; and under the condition that the dimming state is the off state, determining the VGH target voltage as a first voltage, wherein the first voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic device.
In some possible implementations of embodiments of the present application, the first voltage does not vary with temperature.
It will be appreciated that when the panel temperature rises to a certain temperature, the encapsulating material (typically silicone) used to encapsulate the panel will become rubbery and rapidly accelerate thermal expansion, resulting in open circuits and panel failure, typically at a temperature of 125 ℃. Therefore, the high temperature of 125 ℃ can be corresponded to the VGH set value (typically 8V) which is generally set in the related art. It will also be appreciated that when the panel temperature is low, the panel will not operate properly or fail, and therefore, the low temperature of 0 ℃ can be made to correspond to the minimum voltage (typically 7V) that can satisfy the normal operation of the EOA circuit.
In some possible implementations of the embodiment of the present application, the corresponding relationship between the VGH voltage and the panel temperature may be a line with coordinates (0 ℃, 7V) as a starting point and coordinates (125 ℃, 8V) as an ending point, and the slope of any point on the line is greater than 0.
For example, the relationship between the VGH voltage and the panel temperature is a straight line with coordinates (0 ℃, 7V) as a starting point and coordinates (125 ℃, 8V) as an end point; for another example, the relationship between the VGH voltage and the panel temperature is a curve with coordinates (0 ℃, 7V) as the left vertex of the ellipse and coordinates (125 ℃, 8V) as the upper vertex of the ellipse. For another example, the relationship between the VGH voltage and the panel temperature is a curve with coordinates (0 ℃, 7V) as the lower vertex of the ellipse and coordinates (125 ℃, 8V) as the right vertex of the ellipse. And so on.
Exemplarily, as shown in fig. 3, fig. 3 is a first schematic diagram of voltage control provided by the embodiment of the present application. In fig. 3, in the case where the dimming state is the on state, the VGH voltage is changed from 7V to 8V with an increase in temperature; in the case where the dimming state is the off state, the VGH voltage is constantly 7V. As can be seen from fig. 3, the corresponding relationship between the VGH voltage and the panel temperature is a linear corresponding relationship.
As another example, as shown in fig. 4, fig. 4 is a second schematic diagram of voltage control provided in the embodiment of the present application. In fig. 4, in the case where the dimming state is the on state, the VGH voltage is changed from 7V to 8V with an increase in temperature; in the case where the dimming state is the off state, the VGH voltage is constantly 7V. As can be seen from fig. 4, the correspondence relationship between the VGH voltage and the panel temperature is a curve correspondence relationship in which coordinates (0 ℃, 7V) are the left vertex of the ellipse and coordinates (125 ℃, 8V) are the upper vertex of the ellipse.
As another example, as shown in fig. 5, fig. 5 is a third schematic diagram of voltage control provided in the embodiment of the present application. In fig. 5, in the case where the dimming state is the on state, the VGH voltage is changed from 7V to 8V with an increase in temperature; in the case where the dimming state is the off state, the VGH voltage is constantly 7V. As can be seen from fig. 5, the correspondence relationship between the VGH voltage and the panel temperature is a curve correspondence relationship in which coordinates (0 ℃, 7V) are the lower vertex of the ellipse and coordinates (125 ℃, 8V) are the right vertex of the ellipse.
In practical applications, multiple sets of data (VGH voltage and panel temperature) can be collected, and the corresponding relationship between the VGH voltage and the panel temperature can be determined by curve fitting. It should be noted that the curve obtained by curve fitting satisfies the variation trend that the VGH voltage gradually increases with the increase of the panel temperature and gradually decreases with the decrease of the panel temperature.
In the embodiment of the application, when the dimming state is the on state, the corresponding relation between the VGH voltage and the panel temperature is that the VGH voltage gradually increases along with the increase of the panel temperature and gradually decreases along with the decrease of the panel temperature, so that the VGH target voltage is determined according to the corresponding relation, and when the dimming state is the off state, the minimum voltage capable of meeting the normal operation of the array emission driving circuit of the electronic device is determined as the VGH target voltage; and then the VGH voltage is controlled to be the VGH target voltage, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of embodiments of the present application, the parameter information includes: dimming state and display brightness; s202 may include: determining the VGH target voltage as a second voltage under the condition that the dimming state is an on state and the display brightness is less than a display brightness threshold (DBV _ TH), wherein the second voltage is the maximum voltage capable of ensuring that the screen does not leak light; and under the condition that the display brightness is greater than or equal to the display brightness threshold value, determining the VGH target voltage as a third voltage, wherein the third voltage is the minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic device.
In some possible implementations of the embodiment of the present application, the display brightness threshold is a critical value for determining the target voltage of VGH, and the display brightness threshold may be set according to actual requirements.
In some possible implementations of the embodiments of the present application, the light leakage condition refers to a phenomenon that the liquid crystal panel is locally whitened on a pure color background due to light emitted from the edge of the screen caused by poor packaging, failure or aging of the screen and the frame of the backplane.
In some possible implementations of embodiments of the present application, the second voltage is typically 8V and the third voltage is typically 7V.
Exemplarily, as shown in fig. 6, fig. 6 is a fourth schematic diagram of voltage control provided in the embodiment of the present application. In fig. 6, in the case that the dimming state is the on state and the display luminance is less than DBV _ TH, the VGH voltage is constantly 8V; in the case where the display luminance is greater than or equal to DBV _ TH, the VGH voltage is constantly 7V.
In the embodiment of the application, under the condition that the dimming state is an on state, the maximum voltage capable of ensuring that the screen does not leak light is determined as the VGH target voltage, and under the condition that the dimming state is an off state, the minimum voltage capable of meeting the normal operation of an array emission driving circuit of the electronic equipment is determined as the VGH target voltage; and then the VGH voltage is controlled to be the VGH target voltage, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of the embodiment of the present application, S203 may include: determining a target input voltage of the VGH voltage generating circuit according to the VGH target voltage; and controlling the input voltage of the VGH voltage generation circuit to be the target input voltage so as to control the VGH voltage to be the VGH target voltage.
In some possible implementations of embodiments of the present application, determining a target input voltage of the VGH voltage generation circuit according to the VGH target voltage includes: under the condition that the dimming state is an on state, taking the sum of the high voltage of the gamma module corresponding to the VGH target voltage and the voltage difference of the linear voltage regulator as a first input voltage of the driving integrated circuit; and taking the sum of the first input voltage and the analog voltage as a target input voltage.
Wherein, the high voltage of the gamma module refers to the highest gray scale voltage of the gamma module. The voltage difference of the linear voltage stabilizer refers to the voltage difference between the input voltage and the output voltage of the linear voltage stabilizer. The analog voltage is the voltage of the panel's analog circuit power supply.
Illustratively, the first input voltage for driving the integrated circuit may be determined according to the following equation (1),
AVDD = VGMP + linear regulator voltage difference (1)
In formula (1), AVDD is the input voltage of the driving ic, VGMP is the high voltage of the gamma module corresponding to the target voltage VGH, and the voltage difference of the linear regulator is usually in the range of 0.25V to 0.35V.
The target input voltage may be determined according to the following equation (2).
VGH boosting times＝AVDD+VCI (2)
In the formula (2), VGH boosting times is the target input voltage, and VCI is the analog voltage.
In the embodiment of the present application, when the dimming state is the on state, since the VGH target voltage setting value is relatively high, it is difficult to make the VGH voltage reach the VGH target voltage by the input voltage of the driving integrated circuit, and therefore, the VGH voltage needs to be made to reach the VGH target voltage by the VCI voltage.
In some possible implementations of embodiments of the present application, determining a target input voltage of the VGH voltage generation circuit according to the VGH target voltage includes: taking the sum of the VGH target voltage and the tolerance voltage of VGH as a second input voltage of the driving integrated circuit when the dimming state is an off state; the second input voltage is taken as the target input voltage.
Wherein the margin voltage (margin) of VGH refers to a voltage difference between the worst-case sensitivity of the voltage output by the VGH generation circuit and the input voltage of the thin film transistor in the pixel circuit.
Illustratively, the second input voltage for driving the integrated circuit may be determined according to the following equation (3),
AVDD = VGH + tolerance voltage (3)
In formula (3), AVDD is the input voltage of the driving ic, VGH is the target voltage of VGH, and the margin voltage is usually in the range of 0.5 to 0.7V.
The target input voltage may be determined according to the following equation (4).
VGH boosting times＝AVDD (4)
In the formula (4), VGH boosting times is the target input voltage.
In the embodiment of the present application, when the dimming state is the off state, the VGH voltage can reach the VGH target voltage by driving the input voltage of the integrated circuit because the VGH target voltage setting value is relatively low.
As shown in fig. 7, fig. 7 is a fifth schematic diagram of voltage control provided in the embodiment of the present application.
Fig. 7 shows voltages of the AVDD when the dimming state is the on state and the off state.
The embodiment of the present application further provides a voltage control apparatus, as shown in fig. 8. Fig. 8 is a schematic structural diagram of a voltage control apparatus provided in an embodiment of the present application, where the voltage control apparatus 800 may include:
an obtaining module 801, configured to obtain parameter information of a VGH voltage for controlling a pixel circuit, where the parameter information includes a dimming state of an electronic device and one of the following items: panel temperature, display brightness;
a determining module 802, configured to determine a VGH target voltage according to the parameter information;
the control module 803 is configured to control the VGH voltage to be the VGH target voltage.
In the embodiment of the present application, parameter information for controlling the VGH voltage of the pixel circuit is obtained, where the parameter information includes a dimming state of the electronic device and one of the following items: panel temperature, display brightness; determining a VGH target voltage according to the parameter information; and controlling the VGH voltage to be the VGH target voltage. Therefore, the VGH voltage can be dynamically adjusted according to the parameter information of the electronic equipment, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of embodiments of the present application, the parameter information includes: dimming state and panel temperature;
the control module 803 may specifically be configured to:
under the condition that the dimming state is an on state, determining a VGH target voltage according to a corresponding relation between a VGH voltage and a panel temperature, wherein the corresponding relation between the VGH voltage and the panel temperature is that the VGH voltage gradually increases along with the rise of the panel temperature and gradually decreases along with the reduction of the panel temperature;
and under the condition that the dimming state is the off state, determining the VGH target voltage as a first voltage, wherein the first voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic device.
In the embodiment of the application, when the dimming state is the on state, the corresponding relation between the VGH voltage and the panel temperature is that the VGH voltage gradually increases along with the increase of the panel temperature and gradually decreases along with the decrease of the panel temperature, so that the VGH target voltage is determined according to the corresponding relation, and when the dimming state is the off state, the minimum voltage capable of meeting the normal operation of the array emission driving circuit of the electronic device is determined as the VGH target voltage; and then the VGH voltage is controlled to be the VGH target voltage, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of embodiments of the present application, the first voltage does not vary with temperature.
In some possible implementations of embodiments of the present application, the parameter information includes: dimming state and display brightness;
the control module 803 may be specifically configured to:
under the condition that the dimming state is an on state and the display brightness is smaller than the display brightness threshold, determining that the VGH target voltage is a second voltage, wherein the second voltage is the maximum voltage capable of ensuring that the screen does not leak light;
and under the condition that the display brightness is greater than or equal to the display brightness threshold value, determining the VGH target voltage as a third voltage, wherein the third voltage is the minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic device.
In the embodiment of the application, under the condition that the dimming state is an on state, the maximum voltage capable of ensuring that the screen does not leak light is determined as the VGH target voltage, and under the condition that the dimming state is an off state, the minimum voltage capable of meeting the normal work of an array emission driving circuit of the electronic equipment is determined as the VGH target voltage; and then the VGH voltage is controlled to be the VGH target voltage, so that the VGH voltage is no longer a large constant voltage, and the power consumption of a driving integrated circuit for generating the VGH voltage can be reduced.
In some possible implementations of embodiments of the present application, the control module 403 may include:
the determining submodule is used for determining a target input voltage of the VGH voltage generating circuit according to the VGH target voltage;
and the control submodule is used for controlling the input voltage of the VGH voltage generation circuit to be the target input voltage so as to control the VGH voltage to be the VGH target voltage.
In some possible implementations of the embodiments of the present application, the determining sub-module is specifically configured to:
under the condition that the dimming state is an on state, taking the sum of the high voltage of the gamma module corresponding to the VGH target voltage and the voltage difference of the linear voltage regulator as a first input voltage of the driving integrated circuit;
and taking the sum of the first input voltage and the analog voltage as a target input voltage.
In some possible implementations of the embodiments of the present application, the determining sub-module is specifically configured to:
taking the sum of the VGH target voltage and the tolerance voltage of VGH as a second input voltage of the driving integrated circuit when the dimming state is an off state;
the second input voltage is taken as the target input voltage.
Fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
The electronic device may comprise a processor 901 and a memory 902 in which computer program instructions are stored.
Specifically, the processor 901 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present Application.
Memory 902 may include mass storage for data or instructions. By way of example, and not limitation, memory 902 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 902 may include removable or non-removable (or fixed) media, where appropriate. The memory 902 may be internal or external to the electronic device, where appropriate. In some particular embodiments, the memory 902 is non-volatile solid-state memory.
The processor 901 reads and executes the computer program instructions stored in the memory 902 to implement the voltage control method provided by the embodiment of the present application.
In one example, the electronic device can also include a communication interface 903 and a bus 910. As shown in fig. 9, the processor 901, the memory 902, and the communication interface 903 are connected via a bus 910 to complete communication with each other.
The communication interface 903 is mainly used for implementing communication between modules, apparatuses, units and/or devices in this embodiment of the application.
The electronic device can execute the voltage control method provided by the embodiment of the application, so that the corresponding technical effect of the voltage control method provided by the embodiment of the application is realized.
In addition, in combination with the voltage control method in the foregoing embodiment, the embodiment of the present application further provides a computer-readable storage medium to implement. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement the voltage control method provided by the embodiments of the present application. Examples of computer readable storage media include non-transitory computer readable media such as ROM, RAM, magnetic or optical disks, and so forth.
An embodiment of the present application provides a computer program product, where instructions in the computer program product are executed by a processor of an electronic device, so that the electronic device executes the voltage control method provided in the embodiment of the present application, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims (17)

1. A method of voltage control, the method comprising:
acquiring parameter information for controlling a high-level voltage signal line voltage of a pixel circuit, the parameter information including a dimming state of an electronic device and one of: panel temperature, display brightness;
determining a target voltage of a high-level voltage signal line according to the parameter information;
and controlling the voltage of the high-level voltage signal line to be the target voltage of the high-level voltage signal line.
2. The method of claim 1, wherein the parameter information comprises: the dimming state and the panel temperature;
the determining the target voltage of the high-level voltage signal line according to the parameter information includes:
under the condition that the dimming state is an on state, determining the target voltage of the high-level voltage signal line according to the corresponding relation between the voltage of the high-level voltage signal line and the temperature of the panel, wherein the corresponding relation between the voltage of the high-level voltage signal line and the temperature of the panel is that the voltage of the high-level voltage signal line is gradually increased along with the increase of the temperature of the panel and is gradually reduced along with the decrease of the temperature of the panel;
and under the condition that the dimming state is an off state, determining that the target voltage of the high-level voltage signal line is a first voltage, wherein the first voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic equipment.
3. The method of claim 2, wherein the first voltage does not change with temperature changes.
4. The method of claim 1, wherein the parameter information comprises: the dimming state and the display brightness;
the determining the target voltage of the high-level voltage signal line according to the parameter information comprises:
determining that the target voltage of the high-level voltage signal line is a second voltage under the condition that the dimming state is an on state and the display brightness is smaller than a display brightness threshold, wherein the second voltage is a maximum voltage which can ensure that the screen does not leak light;
and under the condition that the display brightness is greater than or equal to the display brightness threshold value, determining that the high-level voltage signal line target voltage is a third voltage, wherein the third voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic equipment.
5. The method of claim 1, wherein said controlling said high-level voltage signal line voltage to said high-level voltage signal line target voltage comprises:
determining a target input voltage of a high-level voltage signal line voltage generating circuit according to the target voltage of the high-level voltage signal line;
and controlling the input voltage of the high-level voltage signal line voltage generating circuit to be the target input voltage so as to control the high-level voltage signal line voltage to be the target voltage of the high-level voltage signal line.
6. The method of claim 5, wherein determining a target input voltage of a high level voltage signal line voltage generating circuit based on the high level voltage signal line target voltage comprises:
under the condition that the dimming state is an on state, taking the sum of the high voltage of the gamma module corresponding to the target voltage of the high-level voltage signal line and the voltage difference of the linear voltage stabilizer as a first input voltage of the driving integrated circuit;
and taking the sum of the first input voltage and the analog voltage as the target input voltage.
7. The method of claim 5, wherein determining a target input voltage of a high level voltage signal line voltage generating circuit based on the high level voltage signal line target voltage comprises:
when the dimming state is the off state, taking the sum of the target voltage of the high-level voltage signal line and the tolerance voltage of the high-level voltage signal line as a second input voltage of the driving integrated circuit;
taking the second input voltage as the target input voltage.
8. A voltage control apparatus, characterized in that the apparatus comprises:
an obtaining module, configured to obtain parameter information for controlling a high-level voltage signal line voltage of a pixel circuit, where the parameter information includes a dimming state of an electronic device and one of: panel temperature, display brightness;
the determining module is used for determining the target voltage of the high-level voltage signal line according to the parameter information;
and the control module is used for controlling the voltage of the high-level voltage signal line to be the target voltage of the high-level voltage signal line.
9. The apparatus of claim 8, wherein the parameter information comprises: the dimming state and the panel temperature;
the control module is specifically configured to:
under the condition that the dimming state is an opening state, determining the target voltage of the high-level voltage signal line according to the corresponding relation between the voltage of the high-level voltage signal line and the temperature of the panel, wherein the corresponding relation between the voltage of the high-level voltage signal line and the temperature of the panel is that the voltage of the high-level voltage signal line is gradually increased along with the increase of the temperature of the panel and is gradually reduced along with the reduction of the temperature of the panel;
and under the condition that the dimming state is an off state, determining that the target voltage of the high-level voltage signal line is a first voltage, wherein the first voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic equipment.
10. The apparatus of claim 9, wherein the first voltage does not change with temperature changes.
11. The apparatus of claim 8, wherein the parameter information comprises: the dimming state and the display brightness;
the control module is specifically configured to:
determining that the target voltage of the high-level voltage signal line is a second voltage under the condition that the dimming state is an on state and the display brightness is smaller than a display brightness threshold, wherein the second voltage is a maximum voltage which can ensure that the screen does not leak light;
and under the condition that the display brightness is greater than or equal to the display brightness threshold value, determining that the high-level voltage signal line target voltage is a third voltage, wherein the third voltage is a minimum voltage which can meet the normal operation of an array emission driving circuit of the electronic equipment.
12. The apparatus of claim 8, wherein the control module comprises:
the determining submodule is used for determining a target input voltage of the high-level voltage signal line voltage generating circuit according to the target voltage of the high-level voltage signal line;
and the control submodule is used for controlling the input voltage of the high-level voltage signal line voltage generating circuit to be the target input voltage so as to control the high-level voltage signal line voltage to be the target voltage of the high-level voltage signal line.
13. The apparatus of claim 12, wherein the determination submodule is specifically configured to:
under the condition that the dimming state is an on state, taking the sum of the high voltage of the gamma module corresponding to the high-level voltage signal line and the voltage difference of the linear voltage stabilizer as a first input voltage of the driving integrated circuit;
and taking the sum of the first input voltage and the analog voltage as the target input voltage.
14. The apparatus of claim 12, wherein the determination submodule is specifically configured to:
when the dimming state is the off state, taking the sum of the target voltage of the high-level voltage signal line and the tolerance voltage of the high-level voltage signal line as a second input voltage of the driving integrated circuit;
taking the second input voltage as the target input voltage.
15. An electronic device, characterized in that the electronic device comprises: a processor and a memory storing computer program instructions;
the processor reads and executes the computer program instructions to implement the voltage control method of any one of claims 1-7.
16. A computer-readable storage medium having computer program instructions stored thereon, which when executed by a processor implement the voltage control method of any one of claims 1-7.
17. A computer program product, wherein instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to perform the voltage control method of any one of claims 1-7.
CN202211001496.5A 2022-08-19 2022-08-19 Voltage control method, device, equipment, medium and product Pending CN115394228A (en)

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CN202211001496.5A CN115394228A (en) 2022-08-19 2022-08-19 Voltage control method, device, equipment, medium and product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211001496.5A CN115394228A (en) 2022-08-19 2022-08-19 Voltage control method, device, equipment, medium and product

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CN115394228A true CN115394228A (en) 2022-11-25

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