CN109754755B - Power supply method and device for display panel and display equipment - Google Patents
Power supply method and device for display panel and display equipment Download PDFInfo
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- CN109754755B CN109754755B CN201711085409.8A CN201711085409A CN109754755B CN 109754755 B CN109754755 B CN 109754755B CN 201711085409 A CN201711085409 A CN 201711085409A CN 109754755 B CN109754755 B CN 109754755B
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Abstract
The embodiment of the invention provides a power supply method and device for a display panel and display equipment, which are used for determining whether the display panel is in a non-standby mode; when the display panel is in the non-standby mode, the display current of the display panel is acquired. And determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel. The conversion efficiency of the independent power supply is reduced along with the reduction of the display current, so that when the display panel needs smaller display current, the conversion efficiency of the driving circuit is higher than that of the independent power supply.
Description
Technical Field
The embodiment of the invention relates to the field of screen display, in particular to a power supply method and device for a display panel and display equipment.
Background
An Active-matrix organic light emitting diode (AMOLED) display panel is a panel mainly composed of a material which emits light by injecting and recombining carriers under the driving of an electric field by using an organic semiconductor and a light emitting material. Compared with the traditional LCD, the AMOLED display panel has the advantages of high response speed, wide color gamut, high contrast, self-luminescence and lower power consumption.
With the continuous popularization of applications, the requirements of users on product display are higher and higher, and for the current AMOLED product, on the basis of ensuring a good display effect, the power consumption becomes a main aspect of the core competitiveness of the product. At present, in a non-standby mode, in order to achieve a good display effect, an AMOLED panel supplies power through an external independent power supply device chip output voltage, and power consumption data are relatively high.
Disclosure of Invention
The embodiment of the invention provides a power supply method and device for a display panel and display equipment, which are used for solving the problem that in the prior art, the power consumption of the display panel is relatively high because the display panel is only supplied with power through an external independent power supply.
The embodiment of the invention provides a power supply method of a display panel, which comprises the following steps:
determining whether the display panel is in a non-standby mode;
when the display panel is in a non-standby mode, acquiring the display current of the display panel;
and determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel.
Optionally, the determining whether to switch the power supply device of the display panel according to the display current of the display panel and the power supply capability of the current power supply device of the display panel includes:
judging whether the display current of the display panel is larger than a preset current or not, wherein the preset current is determined according to an effective current which can be provided by a driving circuit of the display panel;
if the current is larger than the preset current and the current power supply equipment is the driving circuit, determining to switch the power supply equipment of the display panel;
and if the current is not larger than the preset current and the current power supply equipment is the independent power supply, determining to switch the power supply equipment of the display panel.
Optionally, the obtaining the display current of the display panel includes:
collecting the current of the display panel for displaying the current frame picture;
and determining the current of the display panel for displaying the current frame picture as the display current of the display panel.
Optionally, the obtaining the display current of the display panel includes:
before the display panel displays a current frame picture, acquiring the current of an N frame picture before the display panel displays the current frame picture, wherein N is greater than 0;
and determining the display current of the display panel according to the current of the N frames of pictures before the current frame of picture is displayed by the display panel.
Optionally, the method further comprises:
determining the driving circuit as a power supply device of the display panel when it is determined that the display device is in a standby mode.
Accordingly, an embodiment of the present invention provides a power supply device for a display panel, including:
the acquisition module is used for determining whether the display panel is in a non-standby mode; when the display panel is in a non-standby mode, acquiring the display current of the display panel;
and the processing module is used for determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel.
Optionally, the processing module is specifically configured to:
judging whether the display current of the display panel is larger than a preset current or not, wherein the preset current is determined according to an effective current which can be provided by a driving circuit of the display panel;
if the current is larger than the preset current and the current power supply equipment is the driving circuit, determining to switch the power supply equipment of the display panel;
and if the current is not larger than the preset current and the current power supply equipment is the independent power supply, determining to switch the power supply equipment of the display panel.
Optionally, the obtaining module is specifically configured to:
collecting the current of the display panel for displaying the current frame picture;
and determining the current of the display panel for displaying the current frame picture as the display current of the display panel.
Optionally, the obtaining module is specifically configured to:
before the display panel displays a current frame picture, acquiring the current of an N frame picture before the display panel displays the current frame picture, wherein N is greater than 0;
and determining the display current of the display panel according to the current of the N frames of pictures before the current frame of picture is displayed by the display panel.
Optionally, the processing module is further configured to:
determining the driving circuit as a power supply device of the display panel when it is determined that the display device is in a standby mode.
The embodiment of the invention provides display equipment, which comprises an independent power supply, a power supply equipment selection module, a current acquisition module, a display panel and a drive circuit of the display panel;
the independent power supply is electrically connected with the power supply end of the display panel through the power supply equipment selection module;
the driving circuit is electrically connected with a power supply end of the display panel through the power supply equipment selection module;
one end of the current collection module is electrically connected with the power supply end of the display panel, and the other end of the current collection module is electrically connected with the power supply equipment selection module and used for sending the collected display current of the display panel to the power supply equipment selection module;
and the power supply equipment selection module is used for conducting the independent power supply with the display panel or conducting the driving circuit with the display panel according to the display current of the display panel acquired by the current acquisition module.
An embodiment of the present invention provides a computing device, including:
a memory for storing program instructions;
and the processor is used for calling the program instructions stored in the memory and executing the method according to the obtained program.
An embodiment of the present invention provides a computer storage medium, which stores computer-executable instructions for causing a computer to perform any one of the methods described above.
The embodiment of the invention shows that whether the display panel is in the non-standby mode or not is determined; and when the display panel is in a non-standby mode, acquiring the display current of the display panel. And determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel. The conversion efficiency of the independent power supply is reduced along with the reduction of the display current, so that when the display panel needs smaller display current, the conversion efficiency of the driving circuit is higher than that of the independent power supply.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a power supply method for a display panel according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for switching a power supply device of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating comparison of power consumption of an independent power supply and a driving circuit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a power consumption reduction rate according to an embodiment of the present invention;
fig. 6 is a schematic flowchart of another power supply method for a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a power supply device of a display panel according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides a display device, as shown in fig. 1, including an independent power source 101, a power supply device selection module 102, a current collection module 103, a display panel 104, and a display panel driving circuit 105. The independent power source 101 is electrically connected to the power supply terminal of the display panel 104 through the power supply device selection module 102. The driving circuit 105 is electrically connected to the power supply terminal of the display panel 104 through the power supply device selection module 102. One end of the current collection module 103 is electrically connected to the power supply end of the display panel 104, and the other end is electrically connected to the power supply device selection module 102, and is configured to send the collected display current of the display panel 104 to the power supply device selection module 102. The power supply device selection module 102 is configured to connect the independent power source 101 to the display panel 104 or connect the driving circuit 105 to the display panel 104 according to the display current of the display panel 104 collected by the current collection module 103.
Based on the display device shown in fig. 1, an embodiment of the present invention provides a power supply method for a display panel, as shown in fig. 2, including the following steps:
step S201, determining whether the display panel is in a non-standby mode;
in step S202, when the display panel is in the non-standby mode, the display current of the display panel is acquired.
Step S203, determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel.
And step S204, determining the driving circuit as the power supply device of the display panel when the display device is determined to be in the standby mode.
Specifically, in step S201, the non-standby mode is also referred to as a high power consumption mode, in which the user operates the display device to keep the screen active all the time, and the screen power consumption data is high. The standby mode is also called a low power mode in which the user leaves the screen in an idle state for a long time without operating the device. In this mode, the display panel may have two states, one state does not display any picture, the screen power consumption data is low, but the user experience is poor, and the other state continuously refreshes pictures with low brightness at a low screen refresh frequency.
In steps S202 and S203, the power supply apparatus of the display panel includes an independent power supply outside the display panel and a driving circuit inside the display panel. In a specific implementation, the determination of whether to switch the power supply device of the display panel may be performed according to the following method, as shown in fig. 3:
step S301, determining whether the display current of the display panel is greater than a preset current, where the preset current is determined according to an effective current provided by a driving circuit of the display panel.
Step S302, if the current is larger than the preset current and the current power supply device is a driving circuit, determining to switch the power supply device of the display panel.
Step S303, if the current is not greater than the preset current and the current power supply device is an independent power supply, determining to switch the power supply device of the display panel.
Specifically, the preset current may be a maximum effective current provided by a driving circuit of the display panel, or may be smaller than the maximum effective current provided by the driving circuit of the display panel. The specific value of the preset current is determined according to the actual situation. Optionally, if the display current of the display panel is greater than the preset current and the current power supply device is an independent power supply, the power supply device of the display panel is not switched. And if the display current of the display panel is not greater than the preset current and the current power supply equipment is a driving circuit, the power supply equipment of the display panel is not switched.
In step S204, when it is determined that the display device is in the standby mode, the driving circuit may be always determined as the power supply device of the display panel. The display current of the display panel can be monitored in real time, and if the display current of the display panel is larger than the preset current and the current power supply equipment is a driving circuit, the power supply equipment of the display panel is switched; and if the current is not more than the preset current and the current power supply equipment is an independent power supply, switching the power supply equipment of the display panel. The specific power supply mode of the display device in the standby mode can be determined according to actual conditions.
Because when the display current of display panel is not more than preset current, the drive circuit of display panel can provide the display current that display panel needs, and drive circuit's conversion efficiency is higher than independent power supply's conversion efficiency this moment, so when display panel's display current is not more than preset current, adopt drive circuit to supply power and can effectively reduce display panel's consumption.
Alternatively, when the display panel is in the non-standby mode, the display current of the display panel may be acquired by at least the following two methods.
The method comprises the steps of collecting current of a current frame displayed by a display panel, and determining the current of the current frame displayed by the display panel as the display current of the display panel. When the display panel displays the current frame picture, the display current changes in real time, and the display current of the display panel is determined by monitoring the real-time current of the display panel for displaying the current frame picture.
And secondly, before the display panel displays the current frame picture, acquiring the current of the display panel for displaying the N frames of pictures before the current frame picture, wherein N is greater than 0, and then determining the display current of the display panel according to the current of the display panel for displaying the N frames of pictures before the current frame picture. For example, the current of the display panel displaying the frame previous to the current frame may be obtained, and then the average current of the display panel displaying the frame previous to the current frame may be calculated as the display current of the display panel. The current of the display panel displaying the first five frames of the current frame can also be acquired, and then the average current of the display panel displaying the first five frames of the current frame is calculated as the display current of the display panel.
Because the real-time current of each frame of picture displayed by the display panel is collected in real time and is used as the display current, the switching of the power supply equipment can be realized in the process of displaying each frame of picture, and the switching precision of the power supply equipment is improved. The display current required by displaying the current frame picture is predicted by counting the display current of the N frames of pictures before the current frame picture is displayed, and then the power supply equipment of the display panel is switched according to the display current required by displaying the current frame picture to change the plane, so that the power consumption of the display panel can be effectively reduced.
Further, the specific value of the preset current may be determined according to an experiment, for example, when the experiment is performed with a certain 1.9-inch AMOLED display screen, a full white picture, a 100% display area, and a refresh frequency of the display panel is fixed to 60Hz, the brightness is adjusted by adjusting the 51 register, and power consumption corresponding to a power supply mode of the driving circuit and a power supply mode of the independent power supply is shown in fig. 4 under the same external condition. As can be seen from fig. 4, when the gray scale of the display panel is less than 180, the power consumption of the driving circuit for supplying power to the display panel is less than the power consumption of the independent power source. When the gray scale of the display panel is larger than 180 degrees, abnormal sudden power consumption occurs when the driving circuit is used for supplying power, which indicates that the driving circuit cannot meet the power supply requirement of the display panel at the moment. In summary, the maximum effective current provided by the driving circuit is the display current corresponding to the display panel with the gray scale of 180, so when the preset current is set, the display current corresponding to the display panel with the gray scale of 180 can be selected, or the display current corresponding to the display panel with the gray scale of less than 180 can be selected, for example, the display current corresponding to the gray scale of 150, the display current corresponding to the gray scale of 120, and the like. Further, when the gray scale of the display panel is less than 180, the embodiment of the invention analyzes and compares the power consumption of the power supply by the driving circuit and the power consumption of the power supply by the independent power supply, and the specific process is as follows: firstly, calculating the power consumption reduction rate through the following formula (1);
wherein
And in order to reduce the power consumption, P is the power consumption of the display panel when the independent power supply is adopted for supplying power, and D is the power consumption of the display panel when the driving circuit is adopted for supplying power.
Then, the corresponding relationship between the gray scale of the display panel and the power consumption reduction rate is fitted, as shown in fig. 5. As can be seen from fig. 5, when the gray scale of the display panel is less than 180%, the power consumption reduction rate of the display panel is higher than 10% when the display panel is powered by the driving circuit, and reaches 34.51% when the gray scale of the display panel is 120, compared to the mode of powering by the independent power source. Therefore, when the display current of the display panel is not larger than the preset current, compared with a mode of supplying power by adopting an independent power supply, the power consumption can be effectively reduced by adopting the driving circuit to supply power.
In order to better explain the embodiment of the present invention, a power supply method for a display panel provided by the embodiment of the present invention is described below with reference to a specific implementation scenario, as shown in fig. 6.
Step S601, detecting an operation mode of the display panel, where the operation mode of the display panel includes a standby mode and a non-standby mode.
Step S602, determining whether the display panel is in the non-standby mode, if yes, performing step S603, otherwise, performing step S611.
In step S603, a display current of the display panel is acquired.
Step S604, determining whether the display current of the display panel is greater than a predetermined current, if so, performing step S605, otherwise, performing step S608.
Step S605, determining whether the current power supply device is a driving circuit, if so, performing step S606, otherwise, performing step S607.
Step S606, the power supply device of the display panel is switched to an independent power supply.
In step S607, the power supply apparatus of the display panel is not switched.
Step S608, determining whether the current power supply device is an independent power supply, if so, performing step S609, otherwise, performing step S610.
Step S609, the power supply device of the display panel is switched to the driving chip.
In step S610, the power supply apparatus of the display panel is not switched.
In step S611, the driving circuit is determined as the power supply apparatus of the display panel.
The embodiment of the invention shows that whether the display panel is in the non-standby mode or not is determined; and when the display panel is in a non-standby mode, acquiring the display current of the display panel. And determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel. The conversion efficiency of the independent power supply is reduced along with the reduction of the display current, so that when the display panel needs smaller display current, the conversion efficiency of the driving circuit is higher than that of the independent power supply. Meanwhile, for the wearable product, the power consumption is reduced when the battery capacity is fixed, so that the standby time can be effectively prolonged, the power consumption is reduced when the same standby time is long, the battery capacity can be reduced, the size and the thickness of the wearable product are reduced, and unacceptable experience caused by heating of the product can be avoided.
Based on the same concept, fig. 7 exemplarily shows a structure of a power supply apparatus for a display panel, which can perform a flow of a power supply method for a display panel according to an embodiment of the present invention.
As shown in fig. 7, the apparatus includes:
an obtaining module 701, configured to determine whether the display panel is in a non-standby mode; when the display panel is in a non-standby mode, acquiring the display current of the display panel;
the processing module 702 is configured to determine whether to switch the power supply device of the display panel according to the display current of the display panel and the power supply capability of the current power supply device of the display panel, where the power supply device of the display panel includes an independent power supply outside the display panel and a driving circuit inside the display panel.
Optionally, the processing module 702 is specifically configured to:
judging whether the display current of the display panel is larger than a preset current or not, wherein the preset current is determined according to an effective current which can be provided by a driving circuit of the display panel;
if the current is larger than the preset current and the current power supply equipment is the driving circuit, determining to switch the power supply equipment of the display panel;
and if the current is not larger than the preset current and the current power supply equipment is the independent power supply, determining to switch the power supply equipment of the display panel.
Optionally, the obtaining module 702 is specifically configured to:
collecting the current of the display panel for displaying the current frame picture;
and determining the current of the display panel for displaying the current frame picture as the display current of the display panel.
Optionally, the obtaining module 702 is specifically configured to:
before the display panel displays a current frame picture, acquiring the current of an N frame picture before the display panel displays the current frame picture, wherein N is greater than 0;
and determining the display current of the display panel according to the current of the N frames of pictures before the current frame of picture is displayed by the display panel.
Optionally, the processing module 702 is further configured to:
determining the driving circuit as a power supply device of the display panel when it is determined that the display device is in a standby mode.
Embodiments of the present invention provide a computing device, which may be specifically a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.
Memory, which may include Read Only Memory (ROM) and Random Access Memory (RAM), provides the processor with program instructions and data stored in the memory. In an embodiment of the present invention, the memory may be used to store program instructions of a power supply method of the display panel;
and the processor is used for calling the program instructions stored in the memory and executing the power supply method of the display panel according to the obtained program.
An embodiment of the present invention provides a computer storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are used to enable a computer to execute a power supply method for a display panel.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A power supply method of a display panel, comprising:
determining whether the display panel is in a non-standby mode;
when the display panel is in a non-standby mode, before the display panel displays a current frame picture, acquiring the current of N frames of pictures before the display panel displays the current frame picture, wherein N is greater than 0;
taking the average current of N frames of pictures before the current frame of picture is displayed by the display panel as the display current of the display panel;
determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel;
determining the driving circuit as a power supply device of the display panel when it is determined that the display panel is in a standby mode.
2. The method of claim 1, wherein the determining whether to switch the power supply device of the display panel according to the display current of the display panel and the power supply capability of the current power supply device of the display panel comprises:
judging whether the display current of the display panel is larger than a preset current or not, wherein the preset current is determined according to an effective current which can be provided by a driving circuit of the display panel;
if the current is larger than the preset current and the current power supply equipment is the driving circuit, determining to switch the power supply equipment of the display panel;
and if the current is not larger than the preset current and the current power supply equipment is the independent power supply, determining to switch the power supply equipment of the display panel.
3. A power supply apparatus for a display panel, comprising:
the acquisition module is used for determining whether the display panel is in a non-standby mode; when the display panel is in a non-standby mode, before the display panel displays a current frame picture, acquiring the current of N frames of pictures before the display panel displays the current frame picture, wherein N is greater than 0; taking the average current of N frames of pictures before the current frame of picture is displayed by the display panel as the display current of the display panel;
the processing module is used for determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel, wherein the power supply equipment of the display panel comprises an independent power supply outside the display panel and a driving circuit inside the display panel; determining the driving circuit as a power supply device of the display panel when it is determined that the display panel is in a standby mode.
4. The apparatus of claim 3, wherein the processing module is specifically configured to:
judging whether the display current of the display panel is larger than a preset current or not, wherein the preset current is determined according to an effective current which can be provided by a driving circuit of the display panel;
if the current is larger than the preset current and the current power supply equipment is the driving circuit, determining to switch the power supply equipment of the display panel;
and if the current is not larger than the preset current and the current power supply equipment is the independent power supply, determining to switch the power supply equipment of the display panel.
5. A display device is characterized by comprising an independent power supply, a power supply device selection module, a current collection module, a display panel and a drive circuit of the display panel;
the independent power supply is electrically connected with the power supply end of the display panel through the power supply equipment selection module;
the driving circuit is electrically connected with a power supply end of the display panel through the power supply equipment selection module;
the current acquisition module is electrically connected with the power supply end of the display panel at one end and the power supply equipment selection module at the other end, and is used for acquiring the current of N frames of pictures before the current frame of pictures is displayed by the display panel, taking the average current of the N frames of pictures before the current frame of pictures is displayed by the display panel as the display current of the display panel, and sending the display current of the display panel to the power supply equipment selection module;
the power supply equipment selection module is used for determining whether to switch the power supply equipment of the display panel according to the display current of the display panel and the power supply capacity of the current power supply equipment of the display panel when the display panel is in a non-standby mode, wherein the power supply equipment of the display panel comprises the independent power supply and the driving circuit; determining the driving circuit as a power supply device of the display panel when it is determined that the display panel is in a standby mode.
6. A computing device, comprising:
a memory for storing program instructions;
a processor for calling program instructions stored in said memory to execute the method of any one of claims 1 to 2 in accordance with the obtained program.
7. A computer storage medium having computer-executable instructions stored thereon for causing a computer to perform the method of any one of claims 1 to 2.
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| CN112967683A (en) * | 2021-02-09 | 2021-06-15 | 上海天马有机发光显示技术有限公司 | Power supply control method, power supply control chip, display panel and display device |
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