CN115240610A - Voltage adjusting method and device of chip, electronic equipment and storage medium - Google Patents
Voltage adjusting method and device of chip, electronic equipment and storage medium Download PDFInfo
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
- G09G5/393—Arrangements for updating the contents of the bit-mapped memory
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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
- G09G2320/00—Control of display operating conditions
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Abstract
The embodiment of the invention relates to a voltage adjusting method and device of a chip, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring a screen refresh rate; outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal; acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is the voltage corresponding to the minimum screen flicker value; and outputting the voltage of the common electrode to a target chip. Through the mode, the corresponding common electrode voltage is obtained through different refresh rates, the problem of screen flicker caused by mismatching of the common electrode voltage under different screen refresh rates can be avoided, and the user experience is greatly improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display panels, in particular to a voltage adjusting method and device of a chip, electronic equipment and a storage medium.
Background
The liquid crystal display screen controls the display color and the display brightness by adjusting the light throughput through the liquid crystal molecules, and the liquid crystal display screen has the problem of flicker because of the non-uniformity caused by the process of a driving circuit and the rotation of the polarity of each frame required by the polarization prevention of the liquid crystal molecules. When the liquid crystal display screen leaves a factory, the voltage of the common electrode can be adjusted, the flicker of the central area is ensured to be minimum, and the refresh rate of the liquid crystal display screen is 60Hz.
When the notebook screen is applied, in order to reduce the power consumption of the whole computer and prolong the service time of a battery, an Intel (Intel) platform supports a Seamless Dynamic Refresh Rate Switching (SDRRS) function, and the function can reduce the Refresh Rate of the screen from normal 60Hz to 48Hz, so that the power consumption of the display screen is saved. However, due to the current design and adjustment of the peripheral circuit of the screen, the problem of flicker occurs at 48Hz, and when the problem of flicker occurs, the function must be turned off, which seriously affects the user experience.
Disclosure of Invention
The application provides a voltage adjusting method and device of a chip and electronic equipment, and aims to solve the problem of screen flicker under different screen refresh rates in the prior art.
In a first aspect, the present application provides a voltage adjustment method for a chip, including:
acquiring a screen refresh rate;
outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal;
acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is the voltage corresponding to the minimum screen flicker value;
and outputting the voltage of the common electrode to a target chip.
Through the mode, the corresponding common electrode voltage is obtained through different refresh rates, the problem of screen flicker caused by mismatching of the common electrode voltage under different screen refresh rates can be avoided, and user experience is greatly improved.
With reference to the first aspect, in a first embodiment of the first aspect of the present invention, obtaining the screen refresh rate includes:
acquiring a signal of a signal source;
acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal;
the screen refresh rate is determined according to the frequency of the frame synchronization signal.
By the method, the screen refresh rate can be determined according to the frame synchronization signal, and the screen refresh rate can be determined more accurately in consideration of the delay problem possibly existing in the signal processing process.
With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect of the present invention, acquiring a frame synchronization signal corresponding to a signal source signal according to the signal source signal includes:
and converting a next frame signal source signal of the current frame into a frame synchronization signal, and taking the frame synchronization signal as the frame synchronization signal of the signal source signal of the current frame.
By the method, the next frame signal of the signal source signal is used as the frame synchronization signal of the signal source signal of the current frame, and a basis is provided for accurately determining the screen refresh rate according to the frame synchronization signal subsequently.
With reference to any one embodiment of the first aspect to the second embodiment of the first aspect, in a third embodiment of the first aspect of the present invention, the obtaining the corresponding common electrode voltage according to the control signal includes:
generating a level signal corresponding to the control signal according to the control signal;
and acquiring the common electrode voltage from a preset memory corresponding to the level signal according to the level signal.
By the mode, the level signal is generated according to the control signal, the corresponding common electrode voltage is further obtained according to the level signal, the function of outputting different common electrode voltages under different screen refresh rates is achieved, and the problem of screen flicker caused by the change of the refresh rate is effectively solved.
With reference to the third embodiment of the first aspect, in a fourth embodiment of the first aspect of the present invention, the obtaining the common electrode voltage from the preset memory corresponding to the level signal according to the level signal includes:
acquiring the value of a register in a preset memory from the preset memory;
and acquiring the voltage of the common electrode according to the value of the register and the mapping relation between the value of the register and the voltage of the common electrode.
By the mode, the corresponding common electrode voltage is obtained based on the mapping relation between the value of the register and the common electrode voltage, and the corresponding common electrode voltage can be accurately obtained.
With reference to the first aspect, in a fifth embodiment of the first aspect of the present invention, the target chip is a source driver chip.
Through the mode, the source electrode driving chip provides different driving voltages, and the liquid crystal display screen can be better adapted.
In a second aspect, the present application provides a voltage adjustment apparatus for a chip, the apparatus including:
the acquisition module is used for acquiring the screen refresh rate;
the output module is used for outputting a corresponding control signal according to the screen refresh rate;
the acquisition module is further used for acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is the voltage corresponding to the minimum screen flicker value;
and the output module is also used for outputting the voltage of the common electrode to the target chip.
Optionally, the apparatus further comprises: a determination module;
the acquisition module is also used for acquiring a signal source signal; acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal;
and the determining module is used for determining the screen refresh rate according to the frequency of the frame synchronization signal.
Optionally, the apparatus further comprises: a processing module;
and the processing module is used for converting a signal source signal of a next frame of the signal source signal of the current frame into a frame synchronization signal and taking the frame synchronization signal as the frame synchronization signal of the signal source signal of the current frame.
Optionally, the apparatus further comprises: a generation module;
the generating module is used for generating a level signal corresponding to the control signal according to the control signal;
and the acquisition module is also used for acquiring the common electrode voltage from a preset memory corresponding to the level signal according to the level signal.
Optionally, the apparatus further comprises:
the acquisition module is also used for acquiring the value of the register in the preset memory from the preset memory; and acquiring the voltage of the common electrode according to the value of the register and the mapping relation between the value of the register and the voltage of the common electrode.
In a third aspect, an electronic device is provided, which includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
and a processor configured to implement the steps of the voltage adjustment method for a chip according to any one of the embodiments of the first aspect when executing the program stored in the memory.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the voltage adjustment method of the chip as defined in any one of the embodiments of the first aspect.
Drawings
Fig. 1 is a schematic flowchart of a voltage adjustment method for a chip according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an equivalent circuit of a single pixel of an LCD screen according to the present invention;
FIG. 3 is a schematic diagram of voltage polarities of two adjacent pixels according to the present invention;
FIG. 4 is a schematic diagram of voltage polarity waveforms of two adjacent pixels according to the present invention;
FIG. 5 is a diagram of a screen control circuit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a process of adjusting common electrode voltages at different screen refresh rates according to the present invention;
FIG. 7 is a block diagram of the hardware connection for adjusting the common electrode voltage according to the present invention;
FIG. 8 is a flowchart illustrating a method for determining a screen refresh rate according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating internal timing control of the timing controller according to the present invention;
fig. 10 is a schematic structural diagram of a voltage adjustment apparatus for a chip according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the embodiments of the present invention, the following detailed description will be given with reference to the accompanying drawings, which are not intended to limit the embodiments of the present invention.
To solve the technical problems mentioned in the background art, an embodiment of the present application provides a voltage adjustment method for a chip, and specifically, as shown in fig. 1, fig. 1 is a schematic flow chart of a voltage adjustment method for a chip according to an embodiment of the present invention, before introducing the steps of the method, one of application scenarios of the steps of the method is first introduced, a liquid crystal display screen has non-uniformity due to a driving circuit process and liquid crystal molecules need to rotate polarity of each frame, an equivalent circuit diagram of a single pixel of a driving circuit of a liquid crystal display screen is shown in fig. 2, as can be seen in fig. 2, a Gate driving circuit provides a control signal for turning on and off a Gate, source is a Source signal, i.e., a voltage to be displayed, and is provided by a Source chip for providing a data signal by a liquid crystal panel, MOS is a Thin Film Transistor (TFT) switch for driving each liquid crystal pixel, ixel is a pixel capacitor, vcom is a common electrode voltage, and the common electrode voltage directly affects a flicker degree of the liquid crystal screen.
For each pixel, the polarity of the pixel voltage is different in two different frames, as shown in fig. 3, fig. 3 shows the polarity of the voltage of the pixel in two adjacent frames, for example, the voltage is "+" in the case of N (Frame N in fig. 3) Frame, and the voltage is "-" in the case of N +1 (Frame N +1 in fig. 3) Frame. The actual voltage waveforms of the pixels in the N and N +1 frames are as shown in fig. 4, so that the voltage (Vcom) of the common electrode can be adjusted when the liquid crystal display screen leaves a factory, so that the positive voltage and the negative voltage on the pixels in the N and N +1 frames are kept symmetrical, the flicker of the central area is ensured to be minimum, and the refresh rate of the liquid crystal display screen is 60Hz at the moment. When the liquid crystal screen is in use, the screen refresh rate may be adjusted based on some requirements, such as reducing power consumption, etc., at this time, if the common electrode voltage is not adjusted correspondingly, the screen flicker problem may be caused, therefore, the invention provides a voltage adjusting method for a chip, which comprises the following steps:
Specifically, the screen refresh rate can be obtained by using a timing controller, and the screen refresh rate can be obtained by monitoring the screen signal frequency by using the timing controller.
In an alternative example, such as the screen control circuit shown in fig. 5, the timing controller obtains the screen refresh rate through an input original digital interface Signal (eDP Signal) and an output frame Synchronization (STV) Signal, and the screen refresh rate may be 60HZ, 48HZ or other frequencies.
And 120, outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal.
Specifically, the screen refresh rate of each frequency corresponds to one control signal, and the corresponding control signal is output according to the acquired screen refresh rate.
In an alternative example, such as the screen control circuit shown in fig. 5, the timing controller adds a control signal SW and outputs a corresponding control signal according to the acquired screen refresh rate, for example, when the screen refresh rate is 60HZ, the output SW control signal is a high-level control signal, and when the screen refresh rate is 48HZ, the output SW control signal is a low-level control signal.
Further, if the refresh rate is other, the control signal may be added, for example, the control signal SW1 may be added, and different level control signals are output when the screen refresh rate is different, as long as the level control signals correspond to the screen refresh rate one by one.
And step 130, acquiring a corresponding common electrode voltage according to the control signal.
Specifically, the common electrode voltage is a voltage corresponding to the minimum screen flicker value. And controlling the corresponding target object to enable according to the control signal, and acquiring the corresponding common electrode voltage from the target object controlled by the control signal, such as a memory of a chip.
In an alternative example, such as the screen control circuit shown in fig. 5, when the screen refresh rate is 60HZ, the control signal SW outputs a low level signal, the digital VcomIC ic1 chip enables to obtain the corresponding common electrode voltage from the digital VcomIC ic1 chip, when the screen refresh rate is 48HZ, the control signal SW outputs a high level signal, the digital VcomIC ic2 chip enables to obtain the corresponding common electrode voltage from the digital VcomIC ic2 chip, and similarly, when the other screen refresh rate is higher, the other digital chips, such as the digital VcomIC ic3 chip, can be added to obtain the corresponding common electrode voltage from the chip.
When it needs to be explained, the common electrode voltage obtained from the digital chip is the common electrode voltage with the minimum screen flicker value at the corresponding screen refresh rate, so as to solve the screen flicker problem caused by the mismatch of the common electrode voltages at different screen refresh rates.
In order to minimize the screen flicker value at the screen refresh rate corresponding to the common electrode voltage output by the digital VcomIC IC1 chip and the digital VcomIC IC2 chip, values corresponding to the common electrode voltage at different screen refresh rates need to be stored in preset chip locations, so that the two IC chips can be connected to the screen interface terminal through the I2C buses (SDA and SCL), and then connected to the external controller through the interface terminal, as shown in fig. 5.
The specific adjustment process is illustrated by taking screen refresh rates 60HZ and 48HZ as an example, the flow is shown in fig. 6, when the common electrode voltage is adjusted, a screen flashing picture is provided, then the common electrode voltage is adjusted by an external controller through an I2C interface, when the adjusted flicker value is minimum, the value corresponding to the voltage is stored in a register of the digital chip, therefore, when the screen refresh rates 60HZ and 48HZ are provided, the signals of 60HZ and 48HZ need to be switched to the screen for display, assuming that the I2C address of the digital VcomIC1 is 0x01, the I2C address of VcomIC2 is 0x02, when the 60HZ signal is provided, the external controller accesses the 0x01 address, the adjusted data is stored in the register of the digital VcomIC ic1 chip, when the 48HZ signal is provided, the VcomIC ic2 chip is enabled, the external controller accesses the 0x02 address, the adjusted data is stored in the register of the digital VcomIC ic2 chip, the hardware is connected to SDA of the register of the digital VcomIC ic2 chip as shown in fig. 7, the external controller is connected to the register, the switch interface, the register, the screen flash is connected to the switch interface, the screen flash signal is provided, and the screen flash is provided by the screen, the screen flash rate, the switch, the screen flash signal, the screen is realized by the SDA, and the external controller, and the switch, the external controller, and the screen, and the switch interface, and the screen is connected to the switch, and the switch, the switch interface, the electronic chip is connected to the electronic chip, and the electronic chip is connected to the electronic chip.
Specifically, after the common electrode voltage corresponding to the screen refresh rate is obtained, the common electrode voltage is output to the connected target chip.
In an alternative example, for example, in the screen control circuit shown in fig. 5, the target chip is a Source drive IC chip, and the timing controller outputs the acquired common electrode voltage to the Source drive IC chip.
Through the mode, the corresponding common electrode voltage is obtained through different refresh rates, the problem of screen flicker caused by mismatching of the common electrode voltage under different screen refresh rates can be avoided, and the user experience is greatly improved.
Optionally, acquiring a screen refresh rate, further including the method steps shown in fig. 8:
Specifically, the time schedule controller obtains a signal source signal of the screen.
In an alternative example, such as the screen control circuit shown in fig. 5, the signal source signal of the screen may be an eDP signal, and the timing controller obtains the signal source signal (eDP signal) through the screen interface.
And step 820, acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal.
Specifically, in an alternative example, for example, as shown in fig. 5, after the screen control circuit acquires the signal source signal, the timing controller needs to convert the digital signal into the analog signal through signal conversion, and output the analog signal as the frame synchronization signal STV, and the signal source signal and the frame synchronization signal have a corresponding relationship, so that the frame synchronization signal corresponding to the signal source signal can be acquired according to the signal source signal, and a specific conversion process is as follows:
optionally, a signal of a signal source next to the signal source signal of the current frame is converted into a frame synchronization signal, and the frame synchronization signal is used as the frame synchronization signal of the signal source signal of the current frame.
Specifically, in an alternative example, the signal switching may be implemented by switching the eDP signal from 60Hz to 48Hz, delaying the output picture by one frame, and using the STV as the frame synchronization signal, so as to convert the signal source signal of the next frame of the signal source signal of the current frame into the frame synchronization signal, and using the frame synchronization signal as the frame synchronization signal of the signal source signal of the current frame, as shown in the internal timing diagram of the timing controller shown in fig. 9.
In step 830, the screen refresh rate is determined according to the frequency of the frame synchronization signal.
Specifically, the frequency of the frame synchronization signal is the actual screen refresh rate, so that the switching of the common electrode voltage is performed by using the frequency of the frame synchronization signal as the screen refresh rate, and the switching is matched with the adjustment of the actual screen refresh rate.
In an alternative example, such as the internal timing diagram of the timing controller shown in fig. 9, when the frame synchronization signal STV changes from 60HZ to 48HZ, the SW signal changes from low to high, the common electrode voltage Vcom is switched and output, and then the source IC chip synchronizes and outputs the 48HZ signal to the screen, so that the Vcom voltage switching and data output can be completed in synchronization with the switching of the actual screen refresh rate.
By the method, the screen refresh rate can be determined according to the frame synchronization signal in consideration of the delay problem in the signal processing process, and the determination of the screen refresh rate is more accurate.
Optionally, obtaining the corresponding common electrode voltage according to the control signal includes:
generating a level signal corresponding to the control signal according to the control signal;
and acquiring the common electrode voltage from a preset memory corresponding to the level signal according to the level signal.
Specifically, the control signal may be a level signal, the corresponding digital chip is enabled by the level signal, and then the common electrode voltage is obtained from the memory of the enabled digital chip.
In an alternative example, such as the screen control circuit shown in fig. 5, when the screen refresh rate is 60HZ, SW outputs a low level, the digital VcomIC ic1 chip is enabled, the timing controller obtains the stored common electrode voltage data from the memory of the digital VcomIC ic1 chip, when the screen refresh rate is 48HZ, SW outputs a high level, the digital VcomIC ic2 chip is enabled, and the timing controller obtains the stored common electrode voltage data from the memory of the digital VcomIC ic2 chip, however, if the screen refresh rate is other, such as the screen refresh rate is 32HZ, a control signal, such as SW1, outputs a high level or a low level, controls the digital VcomIC ic3 chip to be enabled, and the timing controller obtains the stored common electrode voltage data from the memory of the digital VcomIC ic3 chip, which may be determined by actual conditions, for example.
Optionally, obtaining the common electrode voltage from a preset memory corresponding to the level signal according to the level signal includes:
acquiring the value of a register in a preset memory from the preset memory;
and acquiring the voltage of the common electrode according to the value of the register and the mapping relation between the value of the register and the voltage of the common electrode.
Specifically, a mapping relationship between the value of the register in the preset memory and the common electrode voltage may be established, when storing, only the value corresponding to different common electrode voltages needs to be stored, when the timing controller controls the enable of the preset memory, the value corresponding to the common electrode voltage is obtained from the register of the preset memory, and the common electrode voltage is obtained according to the mapping relationship established in advance.
And after the common electrode voltage is obtained, outputting the common electrode voltage to a target chip.
Optionally, the target chip is a source driver chip.
Specifically, in an optional example, for example, in the screen control circuit shown in fig. 5, the timing controller outputs the acquired common electrode voltage Vcom to the Source driver IC chip, and the chip may provide driving capability according to different common electrode voltages Vcom, so as to adapt to different driving requirements, and simultaneously, may also reduce power consumption.
In the above, for the embodiments of the voltage adjustment method for the chip provided by the present application, other embodiments of voltage adjustment for the chip provided by the present application are described below, and refer to the following specifically.
Fig. 10 is a device for migrating a cloud physical machine across clusters according to an embodiment of the present invention, where the device includes:
an obtaining module 1001 configured to obtain a screen refresh rate;
the output module 1002 is configured to output a corresponding control signal according to a screen refresh rate;
the obtaining module 1001 is further configured to obtain a corresponding common electrode voltage according to the control signal, where the common electrode voltage is a voltage corresponding to a minimum screen flicker value;
the output module 1003 is further configured to output the common electrode voltage to the target chip.
Optionally, the apparatus further comprises: a module 1004 is determined.
The acquisition module is also used for acquiring a signal source signal; acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal;
and the determining module is used for determining the screen refresh rate according to the frequency of the frame synchronization signal.
Optionally, the apparatus further comprises: a processing module 1005;
the processing module 1005 is configured to convert a signal source signal of a frame next to the signal source signal of the current frame into a frame synchronization signal, and use the frame synchronization signal as a frame synchronization signal of the signal source signal of the current frame.
Optionally, the apparatus further comprises: a generation module 1006;
a generating module 1006, configured to generate a level signal corresponding to the control signal according to the control signal;
the obtaining module 1001 is further configured to obtain the common electrode voltage from a preset memory corresponding to the level signal according to the level signal.
Optionally, the apparatus further comprises:
the obtaining module 1001 is further configured to obtain a value of a register in a preset memory from the preset memory; and acquiring the voltage of the common electrode according to the value of the register and the mapping relation between the value of the register and the voltage of the common electrode.
The functions executed by each component in the voltage adjustment device of the chip provided by the embodiment of the present invention have been described in detail in any of the above method embodiments, and therefore, no further description is given here.
The voltage adjusting device of the chip provided by the embodiment of the invention obtains the screen refresh rate; outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal; acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is the voltage corresponding to the minimum screen flicker value; and outputting the voltage of the common electrode to a target chip. Through the mode, the corresponding common electrode voltage is obtained through different refresh rates, the problem of screen flicker caused by mismatching of the common electrode voltage under different screen refresh rates can be avoided, and the user experience is greatly improved.
As shown in fig. 11, an electronic device according to an embodiment of the present application includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114, where the processor 111, the communication interface 112, and the memory 113 complete communication with each other through the communication bus 114.
A memory 113 for storing a computer program;
in an embodiment of the present application, when the processor 111 is configured to execute the program stored in the memory 113, the method for adjusting the voltage of the chip according to any one of the foregoing method embodiments includes:
acquiring a screen refresh rate;
outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal;
acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is the voltage corresponding to the minimum screen flicker value;
and outputting the common electrode voltage to the target chip.
The present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the voltage adjustment method for a chip as provided in any one of the foregoing method embodiments.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be 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 phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for adjusting voltage of a chip is characterized by comprising the following steps:
acquiring a screen refresh rate;
outputting a corresponding control signal according to the screen refresh rate and the mapping relation between the screen refresh rate and the control signal;
acquiring corresponding public electrode voltage according to the control signal, wherein the public electrode voltage is corresponding to the screen with the minimum flicker value;
and outputting the common electrode voltage to a target chip.
2. The method of claim 1, wherein obtaining the screen refresh rate comprises:
acquiring a signal source signal;
acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal;
and determining the screen refresh rate according to the frequency of the frame synchronization signal.
3. The method according to claim 2, wherein said obtaining a frame synchronization signal corresponding to the signal source signal according to the signal source signal comprises:
and converting a signal source signal of a next frame of the signal source signal of the current frame into a frame synchronization signal, and using the frame synchronization signal as the frame synchronization signal of the signal source signal of the current frame.
4. The method according to any one of claims 1-3, wherein said deriving a corresponding common electrode voltage from said control signal comprises:
generating a level signal corresponding to the control signal according to the control signal;
and acquiring the common electrode voltage from a preset memory corresponding to the level signal according to the level signal.
5. The method according to claim 4, wherein the obtaining the common electrode voltage from a preset memory corresponding to the level signal according to the level signal comprises:
acquiring the value of a register in the preset memory from the preset memory;
and acquiring the common electrode voltage according to the value of the register and the mapping relation between the value of the register and the common electrode voltage.
6. The method of claim 1, wherein the target chip is a source driver chip.
7. A voltage regulation device for a chip, the device comprising:
the acquisition module is used for acquiring the screen refresh rate;
the output module is used for outputting a corresponding control signal according to the screen refresh rate;
the acquisition module is further used for acquiring corresponding common electrode voltage according to the control signal, wherein the common electrode voltage is corresponding to the minimum screen flicker value;
and the output module is also used for outputting the common electrode voltage to a target chip.
8. The apparatus of claim 7, wherein the apparatus comprises:
the acquisition module is also used for acquiring a signal source signal; acquiring a frame synchronization signal corresponding to the signal source signal according to the signal source signal;
and the determining module is used for determining the screen refresh rate according to the frequency of the frame synchronization signal.
9. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
the memory is used for storing a computer program;
the processor is configured to implement the steps of the voltage adjustment method of the chip according to any one of claims 1 to 7 when executing the program stored in the memory.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the voltage adjustment method of a chip according to any one of claims 1 to 7.
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