CN110706666B - Picture transition method, device, controller and storage medium - Google Patents

Picture transition method, device, controller and storage medium Download PDF

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CN110706666B
CN110706666B CN201910868665.7A CN201910868665A CN110706666B CN 110706666 B CN110706666 B CN 110706666B CN 201910868665 A CN201910868665 A CN 201910868665A CN 110706666 B CN110706666 B CN 110706666B
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voltage
display panel
picture
value
upper limit
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CN110706666A (en
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陈黎暄
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention provides a picture conversion method, a picture conversion device, a controller and a storage medium, which are used for controlling a display panel to carry out picture conversion, wherein the display panel is provided with an initial picture, a first output voltage is obtained according to a gray-scale value by obtaining the gray-scale value, so that the display panel is converted into an intermediate picture from the initial picture, and the time length of the display panel converted into the intermediate picture from the initial picture is first time length; when the display panel is changed from the initial state picture to the middle picture, the display panel is changed from the middle picture to the final state picture by obtaining a second output voltage, the second output voltage is smaller than the first output voltage, the time length of the display panel for changing the middle picture into the final state picture is a second time length, and the sum of the first time length and the second time length is smaller than the time length of the display panel for changing the initial state picture into the final state picture under the control of the second output voltage; the scheme can improve the switching efficiency of the dynamic pictures of the liquid crystal display.

Description

Picture transition method, device, controller and storage medium
Technical Field
The present invention relates to the field of display technologies, and in particular, to a method and an apparatus for image transition, a controller, and a storage medium.
Background
The liquid crystal display is characterized in that voltage is applied to liquid crystal molecules corresponding to each pixel, so that the liquid crystal molecules are twisted by a corresponding angle to realize light transmittance corresponding to each pixel, and different colors are finally displayed by combining a color film.
For a normally black lcd, T-on (which refers to the time required for liquid crystal molecules to deflect under voltage when the display screen is changed from 0 gray scale to 255 gray scale, so that the brightness is changed from 10% to 90%) is generally longer than 12 ms, i.e. the time for the lcd to change from a fully black screen to a fully white screen is too long, which affects the switching efficiency of the dynamic screen of the lcd.
Therefore, it is necessary to provide a method for reducing the time period for the liquid crystal display to change from the full black frame to the full white frame, so as to improve the switching efficiency of the dynamic frame of the liquid crystal display.
Disclosure of Invention
The embodiment of the invention provides a picture conversion method, a device, a controller and a storage medium, wherein in the process of converting a display panel from an initial picture to an end picture, the transition is firstly made to an intermediate picture, then the intermediate picture is converted to the end picture, and the sum of the time length of the display panel for converting the initial picture into the intermediate picture and the time length of the display panel for converting the intermediate picture into the end picture is less than the time length of the display panel for directly converting the initial picture into the end picture; the problem that the time length of the conventional liquid crystal display is too long when the full black picture is changed into the full white picture is solved.
The embodiment of the invention provides a picture conversion method, which is used for controlling a display panel to carry out picture conversion, wherein the display panel is provided with an initial state picture, and the method comprises the following steps:
acquiring a gray scale value;
acquiring a first output voltage according to the gray scale value;
transmitting the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and the time length of the display panel from the initial state picture to the intermediate picture is a first time length;
when the display panel is changed from the initial state picture to the intermediate picture, acquiring a second output voltage according to the gray scale value, wherein the second output voltage is smaller than the first output voltage;
and transmitting the second output voltage to the display panel, so that the display panel is changed from the middle picture to the final picture under the control of the second output voltage, the time length of the display panel changed from the middle picture to the final picture is a second time length, and the sum of the first time length and the second time length is less than the time length of the display panel changed from the initial picture to the final picture under the control of the second output voltage.
In an embodiment, the step of obtaining the first output voltage according to the gray scale value includes:
acquiring an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range;
generating a first set of voltages from the upper and lower voltages, the first set of voltages including a plurality of voltage values, none of the plurality of voltage values being less than the lower voltage and all being less than the upper voltage;
the step of obtaining a first output voltage according to the gray scale value comprises the following steps:
and acquiring a voltage value corresponding to the gray scale value from the first voltage set as the first output voltage according to the gray scale value.
In an embodiment, the step of obtaining the second output voltage according to the gray-scale value includes:
acquiring a standard voltage, wherein the standard voltage is a voltage which is obtained by increasing the brightness of the picture of the display panel by a preset brightness value when the voltage acting on the display panel is increased by a preset voltage value;
generating a threshold voltage and a threshold brightness according to the standard voltage, wherein the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold brightness and a brightness value corresponding to the display panel under the action of the standard voltage is within a preset brightness range, and the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the threshold voltage;
generating a second set of voltages from the threshold voltage, wherein the second set of voltages includes a plurality of voltage values that are each greater than the threshold voltage;
screening out a plurality of target voltage values from the plurality of voltage values of the second voltage set, wherein the brightness value corresponding to any one target voltage value acting on the display panel is smaller than the threshold brightness;
taking the maximum voltage value of the target voltage values as a target upper limit voltage, and determining a target lower limit voltage according to the target upper limit voltage, wherein the target lower limit voltage is smaller than the target upper limit voltage, and the absolute value of the voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range;
generating a third voltage set according to the target upper limit voltage and the target lower limit voltage, wherein the third voltage set comprises a plurality of voltage values, and the voltage values are not less than the target lower limit voltage and are less than the target upper limit voltage;
the step of obtaining a second output voltage according to the gray-scale value includes:
and acquiring a voltage value corresponding to the gray scale value from the third voltage set as the second output voltage according to the gray scale value.
In an embodiment, the light transmittance corresponding to the middle frame is greater than the light transmittance corresponding to the last frame, and an absolute value of a difference between the light transmittance corresponding to the middle frame and the light transmittance corresponding to the last frame is not greater than 1%.
An embodiment of the present invention provides an image conversion apparatus for controlling a display panel to perform image conversion, wherein the display panel has an initial image, and the image conversion apparatus includes:
the acquisition module is used for acquiring a gray level value;
the first acquisition module is used for acquiring a first output voltage according to the gray-scale value;
the first transmission module is used for transmitting the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and the time length of the display panel from the initial state picture to the intermediate picture is a first time length;
the second obtaining module is used for obtaining a second output voltage according to the gray scale value after the display panel is changed from the initial state picture to the intermediate picture, and the second output voltage is smaller than the first output voltage;
a second transmission module, configured to transmit the second output voltage to the display panel, so that the display panel transitions from the intermediate image to an end image under the control of the second output voltage, a duration of the display panel transitioning from the intermediate image to the end image is a second duration, and a sum of the first duration and the second duration is less than a duration of the display panel transitioning from the initial image to the end image under the control of the second output voltage.
In one embodiment, the first obtaining module includes:
the first obtaining submodule is used for obtaining an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference value between the lower limit voltage and the upper limit voltage is within a first preset voltage range;
the second obtaining submodule generates a first voltage set according to the upper limit voltage and the lower limit voltage, wherein the first voltage set comprises a plurality of voltage values, and the voltage values are not smaller than the lower limit voltage and are smaller than the upper limit voltage;
and the third obtaining submodule is used for obtaining a voltage value corresponding to the gray-scale value from the first voltage set as the first output voltage according to the gray-scale value.
In one embodiment, the second obtaining module includes:
a fifth obtaining submodule, configured to obtain a standard voltage, where the standard voltage is a voltage obtained by increasing a preset luminance value for each time a voltage applied to the display panel increases by a preset voltage value, and the luminance of the picture of the display panel correspondingly increases by a preset luminance value;
a sixth obtaining submodule, configured to generate a threshold voltage and a threshold brightness according to the standard voltage, where the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold brightness and a brightness value corresponding to the display panel under the action of the standard voltage is within a preset brightness range, and the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the threshold voltage;
a seventh obtaining submodule, configured to generate a second voltage set according to the threshold voltage, where the second voltage set includes a plurality of voltage values, and each of the plurality of voltage values is greater than the threshold voltage;
an eighth obtaining submodule, configured to filter out a plurality of target voltage values from the plurality of voltage values in the second voltage set, where a corresponding brightness value of any one of the target voltage values, which is applied to the display panel, is smaller than the threshold brightness;
a ninth obtaining submodule, configured to use a maximum voltage value of the multiple target voltage values as a target upper limit voltage, and determine a target lower limit voltage according to the target upper limit voltage, where the target lower limit voltage is smaller than the target upper limit voltage, and an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range;
a tenth obtaining submodule, configured to generate a third voltage set according to the target upper limit voltage and the target lower limit voltage, where the third voltage set includes a plurality of voltage values, and the plurality of voltage values are not less than the target lower limit voltage and are all less than the target upper limit voltage;
and the eleventh obtaining submodule is used for obtaining a voltage value corresponding to the gray-scale value from the third voltage set according to the gray-scale value to serve as the second output voltage.
In an embodiment, in the first obtaining module and the second obtaining module, the light transmittance corresponding to the middle picture is greater than the light transmittance corresponding to the last picture, and an absolute value of a difference between the light transmittance corresponding to the middle picture and the light transmittance corresponding to the last picture is not greater than 1%.
The embodiment of the invention also provides a controller, which is used for executing a plurality of instructions stored in the memory so as to realize the whole or part of the picture transition method.
The embodiment of the present invention further provides a storage medium, where a plurality of instructions are stored in the storage medium, and the instructions are used for being executed by a controller to implement the above-mentioned all or part of the picture transition method.
The invention provides a picture conversion method, a picture conversion device, a controller and a storage medium, wherein a display panel is provided with an initial state picture, the display panel is converted into an intermediate picture from the initial state picture by acquiring a first output voltage, and the time length of the display panel converted into the intermediate picture from the initial state picture is first time length; when the display panel is changed from the initial state picture to the intermediate state picture, a second output voltage is obtained, so that the display panel is changed from the intermediate state picture to the final state picture, the second output voltage is smaller than the first output voltage, the time length of the display panel from the intermediate state picture to the final state picture is a second time length, and the sum of the first time length and the second time length is smaller than the time length of the display panel from the initial state picture to the final state picture under the control of the second output voltage, so that the time length of the display panel from the initial state picture to the final state picture is reduced, namely the time length of the liquid crystal display from a full black picture to a full white picture is reduced, and the switching efficiency of the dynamic pictures of the liquid crystal display is improved.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a first flowchart of a screen transition method according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a screen transition method according to an embodiment of the present invention;
FIG. 3 is a third flowchart of a screen transition method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a transmittance-voltage curve of a liquid crystal according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a screen transition device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a controller and a memory according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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.
The terms "first", "second", "third" and "fourth", etc. in the present invention are used for distinguishing different objects, not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to those listed but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The execution main body of the image display method provided by the embodiment of the present invention may be the image conversion apparatus provided by the embodiment of the present invention, or an electronic device integrated with the image conversion apparatus, and the image conversion apparatus may be implemented in a hardware or software manner.
Reference herein to "internal" means at least one module or storage space inside the picture conversion apparatus, and reference herein to "external" means outside the picture conversion apparatus.
The embodiment of the invention provides a picture conversion method, a picture conversion device, a controller and a storage medium. The details will be described below separately.
The embodiment of the invention provides a picture conversion method for controlling a display panel to perform picture conversion, wherein the display panel has an initial picture, and the steps of the image display method according to the embodiment of the invention are described in detail below.
The initial state picture can be understood as a picture displayed by the display panel before the picture conversion method is performed.
The picture conversion method of the invention can be suitable for reducing the T-on of the liquid crystal display, and the initial state picture can be any picture with a gray scale value smaller than 255; further, the initial frame may be any frame with a gray scale value smaller than 240, and the intermediate frame and the final frame may be any frame with a gray scale value larger than 240 and not larger than 255.
Referring to fig. 1, fig. 1 is a flowchart illustrating a frame transition method according to an embodiment of the present invention.
And S10, acquiring the gray-scale value.
For example, when the gray scale value is 0, the gray scale value may indicate that the frame displayed by the display panel is a full black frame.
In an embodiment, the gray scale value obtained in step S10 may be greater than 240 and not greater than 255, and the gray scale value is an integer.
It is understood that the gray scale value can be understood as: after receiving the gray scale value, the display panel may deflect the liquid crystal molecules by a corresponding angle under the control of the voltage corresponding to the gray scale value to display an intermediate picture or the final picture; therefore, the gray level can represent the black and white levels of the intermediate frame and the final frame.
Specifically, the gray scale value may be obtained by receiving the current gray scale value input from the outside, or may be obtained by reading the gray scale value stored in advance in the inside.
And S20, acquiring a first output voltage according to the gray-scale value.
Specifically, referring to fig. 2, the step of obtaining the first output voltage according to the gray scale value may include:
s201, obtaining an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range.
It should be noted that each electronic component in the display panel corresponds to a breakdown voltage, and if the actual voltage value acting on the two ends of the electronic component is greater than the corresponding breakdown voltage, the electronic component is broken down, that is, cannot safely operate, so the upper limit voltage can be understood as the maximum voltage which just can prevent each electronic component in the display panel from being broken down.
In an embodiment, the first predetermined voltage range may be greater than 0V and less than or equal to cV, for example, c may be "(the upper limit voltage) × 0.06", that is, an absolute value of a voltage difference between the lower limit voltage and the upper limit voltage may be within an interval of (0, ((the upper limit voltage) × 0.06) ", that is, the lower limit voltage may be within an interval of [ ((the upper limit voltage) × 0.94), the upper limit voltage).
Specifically, the upper limit voltage value pre-stored in the internal circuit may be read to obtain the upper limit voltage, and then the lower limit voltage may be calculated according to the upper limit voltage, so that an absolute value of a voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range.
S202, generating a first voltage set according to the upper limit voltage and the lower limit voltage, wherein the first voltage set comprises a plurality of voltage values, and the voltage values are not less than the lower limit voltage and are less than the upper limit voltage.
For example, when the upper limit voltage is 10V and the lower limit voltage is 5V, the first voltage set is [5V, 10V ").
And S203, acquiring a voltage value corresponding to the gray scale value from the first voltage set as the first output voltage according to the gray scale value.
Wherein the first output voltage is related to both the first set of voltages and the gray scale value.
For example, when the first voltage set is an interval of (15V, 18V) and the gray scale value range is an interval of (240, 255), when the gray scale values are respectively at (240, 245], (245, 250], (250, 255), the corresponding first output voltages may be respectively at (15V, 16V ], (16V, 17V ], (17V, 18V), for example, if the gray scale value is 241, the corresponding first output voltage may be 15.2V, if the gray scale value is 242, the corresponding first output voltage may be 15.4V, and if the gray scale value is 255, the corresponding first output voltage may be 18V.
For another example, when the first voltage set is in a range of (17V, 18V) and the grayscale value range is in a range of (240, 255), if the grayscale value is 241, the corresponding first output voltage may be 17.07V, if the grayscale value is 242, the corresponding first output voltage may be 17.15V, and if the grayscale value is 255, the corresponding first output voltage may be 18V.
And S30, transmitting the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and the time length of the display panel changing from the initial state picture to the intermediate picture is a first time length.
The first output voltage is transmitted to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, which can be understood as follows: after the first output voltage and the common voltage are obtained, the first output voltage and the common voltage are respectively applied to two ends of liquid crystal molecules of the display panel to drive the liquid crystal molecules to deflect so as to change the light transmittance of the display panel and finally present the intermediate picture.
The common voltage is a current voltage value of a common electrode of the display panel, and generally, the common voltage may be not less than 7V and not more than 8V.
Specifically, the common voltage may be obtained by testing a current voltage of a common electrode of the display panel, or by reading a common voltage value stored in advance.
In one embodiment, the common voltage may be understood as a voltage transmitted to a common electrode of the display panel, that is, a voltage applied to one end of the liquid crystal molecules; the first output voltage may be understood as a voltage transmitted to a pixel electrode of the display panel, that is, a voltage applied to one end of the liquid crystal molecules opposite to the one end, and the first output voltage is greater than the common voltage.
In an embodiment, after the alignment process of the display panel, the liquid crystal molecules have an initial pretilt angle with respect to the vertical direction, and the liquid crystal molecules may be deflected by a corresponding offset angle along the direction away from the vertical direction from the initial pretilt angle under the action of the first output voltage, and it can be understood that the sum of the initial pretilt angle and the offset angle is greater than 0 ° and not greater than 90 °.
The first duration can be understood as the duration that the display panel just changes from the initial state picture to the intermediate picture, and here, only the concept of the first duration needs to be understood, and specific numerical values of the first duration do not need to be specifically measured.
And S40, when the display panel is changed from the initial state picture to the intermediate picture, obtaining a second output voltage according to the gray scale value, wherein the second output voltage is smaller than the first output voltage.
Specifically, referring to fig. 3, the step of obtaining the second output voltage according to the gray-scale value may include:
s401, a standard voltage is obtained, wherein the standard voltage is a voltage which is obtained by increasing a preset brightness value correspondingly to the brightness of the picture of the display panel when the voltage applied to the display panel is increased by a preset voltage value.
The standard voltage can be understood as a voltage value which enables the brightness of the picture of the display panel to be stable, namely, the voltage is continuously increased on the basis, and the brightness of the picture of the display panel is slightly increased; it is understood that the standard voltage is less than the upper limit voltage; further, the magnitude of the decrease in the brightness of the picture of the display panel may be more than 5 nits per 1V of voltage decrease continued on this basis.
Specifically, the manner of obtaining the standard voltages may be implemented by some internal modules, such as an analog module, to respectively simulate the simulation effects of the plurality of standard voltages acting on the display panel, and may read and store the brightness values corresponding to the plurality of simulation effects; the corresponding relation between the actual voltage and the brightness of the display panel can be tested in advance, a plurality of groups of data can be obtained, and the voltage value meeting the requirement in the data can be analyzed to be used as the standard voltage.
S402, generating a threshold voltage and a threshold luminance according to the standard voltage, where the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold luminance is greater than a luminance value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold luminance and a luminance value corresponding to the display panel under the action of the standard voltage is within a preset luminance range, and the threshold luminance is greater than a luminance value corresponding to the display panel under the action of the threshold voltage.
The threshold voltage is smaller than the upper limit voltage, and the threshold brightness is smaller than a brightness value corresponding to the display panel under the action of the upper limit voltage.
In one embodiment, the second predetermined voltage range may be not less than 1V, i.e. the threshold voltage may be within the range of [ (standard voltage +1), +).
In an embodiment, the preset brightness range may be not less than 0V and is not greater than 5% of the brightness value of the display panel under the action of the standard voltage, that is, the threshold brightness may be within a [ a, b ] interval, where a is the brightness value of the display panel under the action of the standard voltage, and b is the brightness value of the display panel under the action of the standard voltage, (1+ 5%).
S403, generating a second voltage set according to the threshold voltage, wherein the second voltage set comprises a plurality of voltage values, and the voltage values are all larger than the threshold voltage.
It will be appreciated that the plurality of voltage values in the second set of voltages may be at least a right limit value of (standard voltage +1), and at most infinite, irrespective of other factors.
S404, screening out a plurality of target voltage values from the plurality of voltage values of the second voltage set, wherein the corresponding brightness value of any one target voltage value applied to the display panel is smaller than the threshold brightness.
It is understood that the maximum luminance value corresponding to the target voltage values applied to the display panel may be a left limit value (luminance value x (1+ 5%)) corresponding to the standard voltage applied to the display panel, and the minimum luminance value may be 0, regardless of other factors.
It is noted that the plurality of voltage values of the second set of voltages cannot be 0, and therefore the plurality of target voltage values cannot be 0.
It is understood that the order of the step S404 and the step S403 may be exchanged, that is, the following steps may be performed: generating a voltage set according to the threshold brightness, wherein the brightness values corresponding to the voltage values in the voltage set acting on the display panel are all smaller than the threshold brightness; and screening a plurality of final voltage values from the voltage set, wherein the final voltage values are all larger than the threshold voltage.
It is understood that the plurality of final voltage values are identical to the plurality of target voltage values, both satisfying: and the brightness values which are larger than the threshold voltage and are applied to the display panel are smaller than the threshold brightness. It is merely divided into two steps to be executed, and the order of the two steps may not be limited in practice.
S405, taking the maximum voltage value of the target voltage values as a target upper limit voltage, and determining a target lower limit voltage according to the target upper limit voltage, wherein the target lower limit voltage is smaller than the target upper limit voltage, and the absolute value of the voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range.
It should be noted that the target upper limit voltage may be: and the difference value of the target upper limit voltage and the common voltage acts on the display panel, so that the picture displayed in the display panel is the maximum voltage of the corresponding most standard picture with the gray-scale value of 255.
In an embodiment, the third predetermined voltage range may be greater than 0V and less than or equal to dV range, for example, d may be "(the target upper limit voltage) × 0.06", that is, an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage may be within an interval of (0, ((the target upper limit voltage) × 0.06) ], that is, the target lower limit voltage may be within an interval of [ ((the target upper limit voltage) × 0.94), the target upper limit voltage).
Specifically, a target upper limit voltage value pre-stored in the internal circuit may be read to obtain the target upper limit voltage, and then the target lower limit voltage may be calculated according to the target upper limit voltage, so that an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range.
S406, generating a third voltage set according to the target upper limit voltage and the target lower limit voltage, wherein the third voltage set comprises a plurality of voltage values, and the voltage values are not less than the target lower limit voltage and are all less than the target upper limit voltage.
For example, when the target upper limit voltage is 8V and the target lower limit voltage is 3V, the third voltage set is [3V, 8V).
As shown in fig. 4, the relationship between the transmittance of the display panel per unit area and the Voltage value applied to the corresponding liquid crystal molecules is shown, where "Voltage" represents Voltage in volts, and "Tr" represents transmittance, and the transmittance is a percentage and ranges from 0% to 100%. For example, referring to fig. 4, it can be found that: when the voltage value is larger than 6V, the light transmittance of the display panel per unit area basically does not increase along with the increase of the voltage value, but is within a smaller light transmittance range. It can be understood that, when the final voltage value applied to the liquid crystal molecules is greater than 6V, the light transmittance of the liquid crystal molecules is substantially unchanged with the change of the applied voltage value.
Specifically, the light transmittance of the corresponding frame when each voltage value in the third voltage set is applied to the display panel and the light transmittance of the corresponding frame when each voltage value in the first voltage set is applied to the display panel are within a preset difference range, and further, the preset difference range may be (0, 1%).
And S407, acquiring a voltage value corresponding to the gray scale value from the third voltage set as the second output voltage according to the gray scale value.
Wherein the second output voltage is related to both the third set of voltages and the gray scale value.
For example, when the third voltage set is an interval of (13V, 16V) and the gray scale value range is an interval of (240, 255), when the gray scale values are respectively at (240, 245], (245, 250], (250, 255), the corresponding second output voltages may be respectively at (13V, 14V ], (14V, 15V ], (15V, 16V), for example, if the gray scale value is 241, the corresponding second output voltage may be 13.2V, if the gray scale value is 242, the corresponding second output voltage may be 13.4V, and if the gray scale value is 255, the corresponding second output voltage may be 16V.
For another example, when the third voltage set is in a range of (15V, 16V) and the gray scale value range is in a range of (240, 255), if the gray scale value is 241, the corresponding second output voltage may be 15.07V, if the gray scale value is 242, the corresponding second output voltage may be 15.15V, and if the gray scale value is 255, the corresponding second output voltage may be 16V.
S50, transmitting the second output voltage to the display panel, so that the display panel transitions from the middle picture to the end picture under the control of the second output voltage, a duration of the display panel transitioning from the middle picture to the end picture is a second duration, and a sum of the first duration and the second duration is less than a duration of the display panel transitioning from the initial picture to the end picture under the control of the second output voltage.
The second output voltage is transmitted to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the second output voltage, which can be understood as follows: after the second output voltage and the common voltage are obtained, the second output voltage and the common voltage are respectively applied to two ends of liquid crystal molecules of the display panel to drive the liquid crystal molecules to deflect so as to change the light transmittance of the display panel and finally present the final-state picture.
Wherein, the relevant description about the common voltage may refer to the relevant description in step S30.
The second duration can be understood as the duration that the display panel just changes from the middle picture to the last picture, and here, only the concept of the second duration needs to be understood, and the total duration of the first duration and the second duration needs to be directly measured without specifically measuring a specific value thereof.
It can be understood that, the duration of the transition of the display panel from the initial state picture to the final state picture under the control of the second output voltage may be determined by applying the second output voltage to the display panel when the display panel displays the initial state picture, and determining the duration of the transition of the display panel from the initial state picture to the final state picture.
Wherein the liquid crystal molecules are firstly deflected by a certain larger angle under the control of the larger first output voltage to obtain the middle picture; and then deflecting a certain smaller angle under the control of the smaller second output voltage to obtain the final picture. The total duration of the process is less than the duration of the last-state picture obtained by the liquid crystal molecules directly deflecting a certain smaller angle under the control of the second output voltage; the analysis shows that the method can ensure that the difference between the light transmittances corresponding to the final picture and the intermediate picture is within a preset difference range, and further can ensure that the absolute value of the difference between the light transmittances corresponding to the final picture and the intermediate picture is not more than 1%, i.e., the time for picture transition can be reduced under the condition of ensuring that the light transmittances of the pictures are not obviously different.
In order to better implement the above method, in an embodiment, a screen transition apparatus is provided.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a frame conversion apparatus according to an embodiment of the present invention. The screen transition apparatus 600 of the present embodiment is used for controlling a display panel to perform screen transition, wherein the display panel has an initial screen, and the screen transition apparatus 600 of the present embodiment is described in detail as follows.
In an embodiment, the screen transition apparatus 600 may include:
and the obtaining module 61 is used for obtaining the gray-scale value.
Specifically, the obtaining module 61 may obtain the gray scale value by receiving an input value corresponding to the current external gray scale value, or may obtain the gray scale value by reading a stored value corresponding to the gray scale value stored in advance in the internal gray scale value.
And a first obtaining module 62, configured to obtain the first output voltage according to the gray scale value.
In one embodiment, the first obtaining module 62 may include:
the first obtaining submodule 6201 is configured to obtain an upper limit voltage and a lower limit voltage, where the upper limit voltage is a maximum voltage at which each electronic component in the display panel is enabled to safely work, the lower limit voltage is smaller than the upper limit voltage, and an absolute value of a voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range.
Specifically, the first obtaining sub-module 6201 may first read an upper limit voltage value pre-stored in the internal module to obtain the upper limit voltage, and then calculate the lower limit voltage according to the upper limit voltage, so that an absolute value of a voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range.
The second obtaining submodule 6202 is configured to generate a first voltage set according to the upper limit voltage and the lower limit voltage, where the first voltage set includes a plurality of voltage values, and the plurality of voltage values are not less than the lower limit voltage and are all less than the upper limit voltage.
For example, when the upper limit voltage acquired by the first acquisition sub-module 6201 is 10V and the lower limit voltage is 5V, the first voltage set generated by the second acquisition sub-module 6202 may be [5V, 10V ").
A third obtaining submodule 6203, configured to arbitrarily obtain, according to the gray-scale value, one voltage value corresponding to the gray-scale value from the first voltage set as the first output voltage.
Wherein the third obtaining submodule 6203 obtains the first output voltage related to both the first voltage set and the gray scale value.
For example, when the first voltage set is an interval of (15V, 18V) and the grayscale value range is an interval of (240, 255), when the grayscale values are respectively at (240, 245], (245, 250], (250, 255), the first output voltage acquired by the third acquisition sub-module 6203 may be respectively at (15V, 16V ], (16V, 17V ], (17V, 18V), for example, if the grayscale value is 241, the first output voltage acquired by the third acquisition sub-module 6203 may be 15.2V, if the grayscale value is 242, the first output voltage acquired by the third acquisition sub-module 6203 may be 15.4V, and if the grayscale value is 255, the corresponding first output voltage may be 18V.
For another example, when the first voltage set is in an interval of (17V, 18V) and the grayscale value has a value range of (240, 255), if the grayscale value is 241, the first output voltage acquired by the third acquisition submodule 6203 may be 17.07V, if the grayscale value is 242, the first output voltage acquired by the third acquisition submodule 6203 may be 17.15V, and if the grayscale value is 255, the first output voltage acquired by the third acquisition submodule 6203 may be 18V.
In an embodiment, the screen transition apparatus 600 may further include:
the first transmission module 63 is configured to transmit the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and a duration of the display panel changing from the initial state picture to the intermediate picture is a first duration.
The first transmission module 63 transmits the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, which can be understood as: after the first transmission module 63 obtains the first output voltage and the common voltage, the first output voltage and the common voltage are respectively applied to two ends of liquid crystal molecules of the display panel to drive the liquid crystal molecules to deflect, so as to change the light transmittance of the display panel, and finally, the intermediate picture is displayed.
Specifically, the first transmission module 63 may obtain the common voltage by testing a current voltage of a common electrode of the display panel, or may obtain the common voltage by reading a common voltage value stored in advance.
In an embodiment, the screen transition apparatus 600 may further include:
the second obtaining module 64 is configured to obtain a second output voltage according to the gray scale value after the display panel is changed from the initial state picture to the intermediate state picture, where the second output voltage is smaller than the first output voltage.
In one embodiment, the second obtaining module 64 may include:
the fifth obtaining submodule 6401 is configured to obtain a standard voltage, where the standard voltage is a voltage obtained by increasing a brightness of a picture of the display panel by a preset brightness value when the voltage applied to the display panel increases by a preset voltage value.
Specifically, the fifth obtaining sub-module 6401 may obtain the standard voltages through internal modules, such as analog modules, to respectively simulate a plurality of analog effects of the standard voltages acting on the display panel, and may read and store a plurality of luminance values corresponding to the plurality of analog effects; the corresponding relation between the actual voltage and the brightness of the display panel can be tested in advance, a plurality of groups of data can be obtained, and the voltage value meeting the requirement in the data can be analyzed to be used as the standard voltage.
A sixth obtaining submodule 6402, configured to generate a threshold voltage and a threshold luminance according to the standard voltage, where the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold luminance is greater than a luminance value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold luminance and a luminance value corresponding to the display panel under the action of the standard voltage is within a preset luminance range, and the threshold luminance is greater than a luminance value corresponding to the display panel under the action of the threshold voltage.
The threshold voltage generated by the sixth obtaining submodule 6402 is smaller than the upper limit voltage, and the threshold luminance generated by the sixth obtaining submodule 6402 is smaller than the luminance value of the display panel corresponding to the upper limit voltage.
In an embodiment, the second preset voltage range generated by the sixth obtaining sub-module 6402 may be not less than 1V, that is, the threshold voltage may be within the range of [ (standard voltage +1), +).
In an embodiment, the preset brightness range may be not less than 0V and is not greater than 5% of the brightness value of the display panel under the action of the standard voltage, that is, the threshold brightness generated by the sixth obtaining sub-module 6402 may be within a [ a, b ] interval, where a is the brightness value of the display panel under the action of the standard voltage, and b is the brightness value of the display panel under the action of the standard voltage (1+ 5%).
A seventh obtaining submodule 6403 configured to generate a second voltage set according to the threshold voltage, where the second voltage set includes a plurality of voltage values, and each of the plurality of voltage values is greater than the threshold voltage.
It is to be understood that the plurality of voltage values in the second voltage set generated by the seventh obtaining sub-module 6403 may be a right limit value of (standard voltage +1) at a minimum, and may be infinite at a maximum, regardless of other factors.
An eighth obtaining submodule 6404 is configured to filter out a plurality of target voltage values from the plurality of voltage values in the second voltage set, where a brightness value corresponding to any one of the target voltage values applied to the display panel is smaller than the threshold brightness.
It is understood that the brightness value of the plurality of target voltage values filtered by the eighth obtaining sub-module 6404 applied to the display panel may be at most a left limit value (brightness value x (1+ 5%)) of the display panel under the action of the standard voltage, and may be at least 0 regardless of other factors.
It should be noted that the plurality of voltage values of the second voltage set may not be 0, and therefore the plurality of target voltage values screened by the eighth obtaining submodule 6404 may not be 0.
A ninth obtaining submodule 6405, configured to use a maximum voltage value of the multiple target voltage values as a target upper limit voltage, and determine a target lower limit voltage according to the target upper limit voltage, where the target lower limit voltage is smaller than the target upper limit voltage, and an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range.
Specifically, the ninth obtaining submodule 6405 may first read a target upper limit voltage value pre-stored in the internal module to obtain the target upper limit voltage, and then calculate the target lower limit voltage according to the target upper limit voltage, so that an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range.
A tenth obtaining submodule 6406, configured to generate a third voltage set according to the target upper limit voltage and the target lower limit voltage, where the third voltage set includes a plurality of voltage values, and each of the plurality of voltage values is not less than the target lower limit voltage and is less than the target upper limit voltage. For example, when the target upper limit voltage acquired by the ninth acquisition sub-module 6405 is 8V and the target lower limit voltage is 3V, the third voltage set acquired by the tenth acquisition sub-module 6406 is [3V, 8V).
As shown in fig. 4, the relationship between the transmittance of the display panel per unit area and the Voltage value applied to the corresponding liquid crystal molecules is shown, where "Voltage" represents Voltage in volts, and "Tr" represents transmittance, and the transmittance is a percentage and ranges from 0% to 100%. For example, referring to fig. 4, it can be found that: when the voltage value is larger than 6V, the light transmittance of the display panel per unit area basically does not increase along with the increase of the voltage value, but is within a smaller light transmittance range. It can be understood that, when the final voltage value applied to the liquid crystal molecules is greater than 6V, the light transmittance of the liquid crystal molecules is substantially unchanged with the change of the applied voltage value.
Specifically, the light transmittance of the corresponding picture when each voltage value in the third voltage set generated by the tenth acquisition sub-module 6406 is applied to the display panel is within a preset difference range, and further, the preset difference range may be (0, 2%).
An eleventh obtaining submodule 6407 configured to obtain, as the second output voltage, a voltage value corresponding to the gray scale value from the third voltage set, for the gray scale value.
Wherein the eleventh obtaining submodule 6407 obtains the second output voltage in relation to both the third set of voltages and the gray scale value.
For example, when the third voltage set is an interval of (13V, 16V) and the grayscale value ranges from (240, 255), when the grayscale values are respectively at (240, 245], (245, 250], (250, 255), the second output voltage obtained by the eleventh obtaining submodule 6407 may be respectively at (13V, 14V ], (14V, 15V ], (15V, 16V), for example, if the grayscale value is 241, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 13.2V, if the grayscale value is 242, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 13.4V, and if the grayscale value is 255, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 16V.
For another example, when the third voltage set is in a range of (15V, 16V) and the grayscale value range is in a range of (240, 255), if the grayscale value is 241, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 15.07V, if the grayscale value is 242, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 15.15V, and if the grayscale value is 255, the second output voltage obtained by the eleventh obtaining submodule 6407 may be 16V.
In an embodiment, the screen transition device 60 may further include:
a second transmission module 65, configured to transmit the second output voltage to the display panel, so that the display panel transitions from the middle picture to the last picture under the control of the second output voltage, a duration of the display panel transitioning from the middle picture to the last picture is a second duration, and a sum of the first duration and the second duration is less than a duration of the display panel transitioning from the initial picture to the last picture under the control of the second output voltage.
The second transmission module 65 transmits the second output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the second output voltage, which can be understood as: after the second transmission module 65 obtains the second output voltage and the common voltage, the second output voltage and the common voltage are respectively applied to two ends of liquid crystal molecules of the display panel to drive the liquid crystal molecules to deflect, so as to change the light transmittance of the display panel, and finally, the final-state picture is displayed.
Specifically, the second transmission module 65 may obtain the common voltage by testing a current voltage of the common electrode of the display panel, or may obtain the common voltage by reading the first transmission module 63 or a common voltage value pre-stored in an internal common voltage value.
The liquid crystal molecules transmit the larger first output voltage through the first transmission module 63 to deflect a certain larger angle, so as to obtain the middle picture; then, the second transmission module 65 transmits the smaller second output voltage to deflect a certain smaller angle, so as to obtain the final image. The total duration of the above process is less than the duration of the liquid crystal molecules deflecting a certain smaller angle through the second output voltage to obtain the final state picture; as can be seen from the above analysis, the picture conversion apparatus 600 can ensure that the difference between the light transmittances corresponding to the last picture and the middle picture is within the preset difference range, and further, can ensure that the absolute value of the difference between the light transmittances corresponding to the last picture and the middle picture is not greater than 1%, that is, the picture conversion apparatus 600 can reduce the picture conversion time period under the condition of ensuring that the picture transmittances are not significantly different.
A controller and memory are also provided in an embodiment.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a controller and a memory according to an embodiment of the invention.
The memory 701 may be used to store software programs and modules, which may include, inter alia, a program storage area and a data storage area. The controller 702 executes various functional applications and data processing by executing software programs and modules stored in the memory 701.
The controller 702 performs various functions and processes data by running or executing software programs and/or modules stored in the memory 701 and calling data stored in the memory 701, thereby performing overall monitoring.
In some embodiments, the controller 702 obtains the grayscale values.
In some embodiments, the controller 702 obtains the first output voltage according to the gray scale value.
In some embodiments, the step of obtaining the first output voltage according to the gray-scale value by the controller 702 includes:
acquiring an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range;
generating a first set of voltages from the upper and lower voltages, the first set of voltages including a plurality of voltage values, none of the plurality of voltage values being less than the lower voltage and all being less than the upper voltage.
In some embodiments, the controller 702 obtains a voltage value corresponding to the gray scale value from the first voltage set as the first output voltage according to the gray scale value.
In some embodiments, the controller 702 transmits the first output voltage to the display panel, so that the display panel is switched from the initial state picture to an intermediate picture under the control of the first output voltage, and the time duration for switching the display panel from the initial state picture to the intermediate picture is a first time duration.
In some embodiments, after the display panel is changed from the initial state frame to the intermediate frame, the controller 702 obtains a second output voltage according to the gray-scale value, where the second output voltage is smaller than the first output voltage.
In some embodiments, the step of obtaining the second output voltage according to the gray-scale value by the controller 702 includes:
acquiring a standard voltage, wherein the standard voltage is a voltage which is obtained by increasing the brightness of the picture of the display panel by a preset brightness value when the voltage acting on the display panel is increased by a preset voltage value;
generating a threshold voltage and a threshold brightness according to the standard voltage, wherein the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold brightness and a brightness value corresponding to the display panel under the action of the standard voltage is within a preset brightness range, and the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the threshold voltage;
generating a second set of voltages from the threshold voltage, wherein the second set of voltages may include a plurality of voltage values that are each greater than the threshold voltage;
screening out a plurality of target voltage values from the plurality of voltage values of the second voltage set, wherein the brightness value corresponding to any one target voltage value acting on the display panel is smaller than the threshold brightness;
taking the maximum voltage value of the target voltage values as a target upper limit voltage, and determining a target lower limit voltage according to the target upper limit voltage, wherein the target lower limit voltage is smaller than the target upper limit voltage, and the absolute value of the voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range;
generating a third voltage set according to the target upper limit voltage and the target lower limit voltage, wherein the third voltage set comprises a plurality of voltage values, and the voltage values are not less than the target lower limit voltage and are less than the target upper limit voltage;
in some embodiments, the controller 702 obtains a voltage value corresponding to the gray scale value from the third voltage set as the second output voltage according to the gray scale value.
In some embodiments, the controller 702 makes the transmittance corresponding to the middle frame greater than the transmittance corresponding to the last frame, and the absolute value of the difference between the transmittance corresponding to the middle frame and the transmittance corresponding to the last frame is not greater than 1%.
In some embodiments, the controller 702 transmits the second output voltage to the display panel, so that the display panel transitions from the middle picture to the end picture under the control of the second output voltage, a duration of the transition of the display panel from the middle picture to the end picture is a second duration, and a sum of the first duration and the second duration is less than a duration of the transition of the display panel from the initial picture to the end picture under the control of the second output voltage.
It should be noted that, a person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program to instruct related hardware, where the program can be stored in a computer readable storage medium, such as a memory of an electronic device, and executed by at least one processor in the electronic device, and during the execution, the program can include the flow of the embodiment of the charging reminder method. Among others, the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The invention provides a picture conversion method, a picture conversion device, a controller and a storage medium, wherein a display panel is provided with an initial state picture, the display panel is converted into an intermediate picture from the initial state picture by acquiring a first output voltage, and the time length of the display panel converted into the intermediate picture from the initial state picture is first time length; when the display panel is changed from the initial state picture to the intermediate state picture, a second output voltage is obtained, so that the display panel is changed from the intermediate state picture to an end state picture, the second output voltage is smaller than the first output voltage, the time length of the display panel from the intermediate state picture to the end state picture is a second time length, and the sum of the first time length and the second time length is smaller than the time length of the display panel from the initial state picture to the end state picture under the control of the second output voltage, so that the time length of the display panel from the initial state picture to the end state picture is reduced, namely the T-on of the liquid crystal display is reduced, and the display quality of the dynamic picture of the liquid crystal display is improved.
As described above, in the detailed description of the screen transition method, the apparatus, the controller, and the storage medium according to the embodiments of the present invention, each functional module may be integrated into one processing chip, or each functional module may exist alone physically, or two or more functional modules may be integrated into one functional module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; in addition, the present disclosure should not be construed as limiting the invention in any way, since modifications and variations will occur to those skilled in the art upon reading the present disclosure and the appended claims.

Claims (10)

1. A picture transition method for controlling a display panel to perform picture transition, wherein the display panel has an initial picture, the method comprising:
acquiring a gray scale value;
acquiring a first output voltage according to the gray-scale value and based on the maximum voltage of safe work of each electronic component in the display panel;
transmitting the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and the time length of the display panel from the initial state picture to the intermediate picture is a first time length;
when the display panel is changed from the initial state picture to the intermediate picture, acquiring a second output voltage according to the gray-scale value and based on a standard voltage, wherein the standard voltage is a voltage which enables the brightness of the picture of the display panel to correspondingly increase by a preset brightness value when the voltage applied to the display panel increases by a preset voltage value, and the second output voltage is smaller than the first output voltage;
and transmitting the second output voltage to the display panel, so that the display panel is changed from the middle picture to the final picture under the control of the second output voltage, the time length of the display panel changed from the middle picture to the final picture is a second time length, the sum of the first time length and the second time length is less than the time length of the display panel changed from the initial picture to the final picture under the control of the second output voltage, and the absolute value of the difference value between the light transmittance corresponding to the middle picture and the light transmittance corresponding to the final picture is not more than 1%.
2. The screen transition method according to claim 1, wherein the step of obtaining the first output voltage based on the maximum voltage at which each electronic component in the display panel safely operates according to the gray-scale value comprises:
acquiring an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference between the lower limit voltage and the upper limit voltage is within a first preset voltage range;
generating a first set of voltages from the upper and lower voltages, the first set of voltages including a plurality of voltage values, none of the plurality of voltage values being less than the lower voltage and all being less than the upper voltage;
the step of obtaining a first output voltage according to the gray scale value comprises the following steps:
and acquiring a voltage value corresponding to the gray scale value from the first voltage set as the first output voltage according to the gray scale value.
3. The screen transition method according to claim 2, wherein the step of obtaining the second output voltage based on the standard voltage according to the gray-scale value comprises:
generating a threshold voltage and a threshold brightness according to the standard voltage, wherein the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold brightness and a brightness value corresponding to the display panel under the action of the standard voltage is within a preset brightness range, and the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the threshold voltage;
generating a second set of voltages from the threshold voltage, wherein the second set of voltages includes a plurality of voltage values that are each greater than the threshold voltage;
screening out a plurality of target voltage values from the plurality of voltage values of the second voltage set, wherein the brightness value corresponding to any one target voltage value acting on the display panel is smaller than the threshold brightness;
taking the maximum voltage value of the target voltage values as a target upper limit voltage, and determining a target lower limit voltage according to the target upper limit voltage, wherein the target lower limit voltage is smaller than the target upper limit voltage, and the absolute value of the voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range;
generating a third voltage set according to the target upper limit voltage and the target lower limit voltage, wherein the third voltage set comprises a plurality of voltage values, and the voltage values are not less than the target lower limit voltage and are less than the target upper limit voltage;
the step of obtaining a second output voltage according to the gray-scale value includes:
and acquiring a voltage value corresponding to the gray scale value from the third voltage set as the second output voltage according to the gray scale value.
4. The picture transition method according to claim 1, wherein the transmittance corresponding to the middle picture is greater than the transmittance corresponding to the last picture.
5. A picture transition apparatus for controlling a display panel to perform picture transition, wherein the display panel has an initial picture, the picture transition apparatus comprising:
the acquisition module is used for acquiring a gray level value;
the first obtaining module is used for obtaining a first output voltage according to the gray-scale value and based on the maximum voltage of each electronic component in the display panel, wherein each electronic component is safe to work;
the first transmission module is used for transmitting the first output voltage to the display panel, so that the display panel is changed from the initial state picture to an intermediate picture under the control of the first output voltage, and the time length of the display panel from the initial state picture to the intermediate picture is a first time length;
a second obtaining module, configured to obtain a second output voltage according to the gray scale value and based on a standard voltage after the display panel is changed from the initial state picture to the intermediate picture, where the standard voltage is a voltage obtained by increasing a preset voltage value for each voltage applied to the display panel, and the brightness of the picture of the display panel is correspondingly increased by a preset brightness value, and the second output voltage is smaller than the first output voltage;
a second transmission module, configured to transmit the second output voltage to the display panel, so that the display panel transitions from the intermediate image to an end image under the control of the second output voltage, a duration of the display panel transitioning from the intermediate image to the end image is a second duration, and a sum of the first duration and the second duration is less than a duration of the display panel transitioning from the initial image to the end image under the control of the second output voltage.
6. The picture transition apparatus according to claim 5, wherein the first acquisition module comprises:
the first obtaining submodule is used for obtaining an upper limit voltage and a lower limit voltage, wherein the upper limit voltage is the maximum voltage which enables each electronic component in the display panel to work safely, the lower limit voltage is smaller than the upper limit voltage, and the absolute value of the voltage difference value between the lower limit voltage and the upper limit voltage is within a first preset voltage range;
the second obtaining submodule generates a first voltage set according to the upper limit voltage and the lower limit voltage, wherein the first voltage set comprises a plurality of voltage values, and the voltage values are not smaller than the lower limit voltage and are smaller than the upper limit voltage;
and the third obtaining submodule is used for obtaining a voltage value corresponding to the gray-scale value from the first voltage set as the first output voltage according to the gray-scale value.
7. The picture transition apparatus according to claim 5, wherein the second acquisition module comprises:
a sixth obtaining submodule, configured to generate a threshold voltage and a threshold brightness according to the standard voltage, where the threshold voltage is greater than the standard voltage, an absolute value of a voltage difference between the threshold voltage and the standard voltage is within a second preset voltage range, the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the standard voltage, an absolute value of a difference between the threshold brightness and a brightness value corresponding to the display panel under the action of the standard voltage is within a preset brightness range, and the threshold brightness is greater than a brightness value corresponding to the display panel under the action of the threshold voltage;
a seventh obtaining submodule, configured to generate a second voltage set according to the threshold voltage, where the second voltage set includes a plurality of voltage values, and each of the plurality of voltage values is greater than the threshold voltage;
an eighth obtaining submodule, configured to filter out a plurality of target voltage values from the plurality of voltage values in the second voltage set, where a corresponding brightness value of any one of the target voltage values, which is applied to the display panel, is smaller than the threshold brightness;
a ninth obtaining submodule, configured to use a maximum voltage value of the multiple target voltage values as a target upper limit voltage, and determine a target lower limit voltage according to the target upper limit voltage, where the target lower limit voltage is smaller than the target upper limit voltage, and an absolute value of a voltage difference between the target lower limit voltage and the target upper limit voltage is within a third preset voltage range;
a tenth obtaining submodule, configured to generate a third voltage set according to the target upper limit voltage and the target lower limit voltage, where the third voltage set includes a plurality of voltage values, and the plurality of voltage values are not less than the target lower limit voltage and are all less than the target upper limit voltage;
and the eleventh obtaining submodule is used for obtaining a voltage value corresponding to the gray-scale value from the third voltage set according to the gray-scale value to serve as the second output voltage.
8. The picture conversion device according to claim 5, wherein in the first obtaining module and the second obtaining module, the transmittance corresponding to the middle picture is greater than the transmittance corresponding to the last picture, and an absolute value of a difference between the transmittance corresponding to the middle picture and the transmittance corresponding to the last picture is not greater than 1%.
9. A controller for executing instructions stored in a memory for implementing the method of any one of claims 1 to 4.
10. A storage medium having stored therein instructions for execution by a controller to implement the method of any one of claims 1-4.
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