CN116364034A - Voltage adjusting method, voltage adjusting device and display device - Google Patents

Abstract

The application provides a voltage adjusting method, a voltage adjusting device and a display device, and relates to the technical field of display, wherein the method comprises the following steps: if a special picture is detected and the polarity of the Source voltage is required to be reversed, the polarity of the Source voltage is reversed, the common voltage of the display device is adjusted to be a first voltage, and the difference between the first voltage and the shifted common voltage is smaller than or equal to the first voltage difference value. And adjusting the public voltage every other target duration until the public voltage is equal to the standard public voltage of the display device, wherein the absolute value of the difference value between the public voltage after each adjustment and the public voltage before each adjustment is smaller than or equal to the first voltage difference value, and the absolute value of the difference value between the public voltage after each adjustment and the standard public voltage is smaller than the absolute value of the difference value between the public voltage before each adjustment and the standard public voltage. According to the technical scheme, the phenomenon of picture flickering caused by polarity change of Source voltage can be improved.

Description

Voltage adjustment method, voltage adjustment device and display device

technical field

The present application relates to the field of display technology, and in particular to a voltage adjustment method, a voltage adjustment device and a display device.

Background technique

With the improvement of display technology, the display effect of the display device is getting better and better, but when the display device displays special pictures such as V-1line, Dot on off, etc., due to the characteristics of the panel, the common voltage (Vcom) is likely to shift, resulting in lateral crosstalk.

To solve the above problems, the source (Source) polarity compensation technology is generally used at present. When a display device is detected to display a special picture, the polarity of the Source voltage is changed to reduce the Vcom offset, thereby reducing the lateral crosstalk.

However, changing the polarity of the Source voltage will cause the brightness of the entire screen to change instantaneously, resulting in screen flickering.

Contents of the invention

In view of this, the present application provides a voltage adjustment method, which can not only reduce the lateral crosstalk caused by Vcom offset, but also improve the flicker caused by the polarity change of the Source voltage when the display device displays a special picture. The phenomenon.

In order to achieve the above purpose, in the first aspect, the embodiment of the present application provides a voltage adjustment method applied to a display device, including:

If it is detected that the screen of the display device is a special screen, and the voltage polarity of each source of the display device needs to be reversed, the voltage polarity of each source of the display device is reversed, and the The common voltage of the display device is adjusted to a first voltage, and the difference between the first voltage and the shifted common voltage of the display device is less than or equal to a first voltage difference;

Adjust the common voltage of the display device every target duration until the common voltage of the display device is equal to the standard common voltage of the display device, the difference between the common voltage after each adjustment and the common voltage before adjustment The absolute value of the difference is less than or equal to the first voltage difference, and the absolute value of the difference between the adjusted common voltage and the standard common voltage of the display device is smaller than the pre-adjusted common voltage and the standard common voltage. The absolute value of the difference between .

As an optional implementation manner of the embodiment of the present application, the adjusting the common voltage of the display device every target duration includes:

Every target time length, if the absolute value of the difference between the pre-adjusted common voltage and the standard common voltage of the display device is greater than or equal to the first voltage difference, then adjust the first voltage difference according to the first voltage difference. the common voltage of the display device;

If the absolute value of the difference between the common voltage before adjustment and the standard common voltage of the display device is smaller than the first voltage difference, adjust the common voltage of the display device to the standard common voltage of the display device Voltage.

As an optional implementation manner of the embodiment of the present application, when the picture of the display device is a normal picture, the driving mode of the display device is column inversion;

The reversing the voltage polarity of each source of the display device includes:

The driving mode of the display device is adjusted from column inversion to 2line inversion.

As an optional implementation manner of the embodiment of the present application, the adjusting the common voltage of the display device every target duration includes:

The common voltage of the display device is adjusted during the blanking time of the image frame every target duration.

As an optional implementation manner of the embodiment of this application, the method further includes:

When it is detected that the picture of the display device is a normal picture, the driving mode of the display device is adjusted to column inversion.

As an optional implementation of the embodiment of the present application, if it is detected that the number of adjacent sub-pixels that are bright and dark in the screen of the display device is greater than or equal to the target number, it is determined that the screen of the display device is a special picture.

As an optional implementation manner of the embodiment of the present application, the method further includes: if it is detected that the number of adjacent sub-pixels that are bright and dark in the screen of the display device is less than the target number, then determine that the display device is the normal screen.

As an optional implementation manner of the embodiment of the present application, the target duration is a duration corresponding to displaying one frame of picture by the display device.

In the second aspect, the embodiment of the present application provides a voltage adjustment device applied to a display device, including:

The inversion module is used to invert the voltage polarity of each source of the display device if it is detected that the screen of the display device is a special screen and the voltage polarity of each source of the display device needs to be reversed. and adjusting the common voltage of the display device to a first voltage, the difference between the first voltage and the shifted common voltage of the display device is less than or equal to the first voltage difference;

The adjustment module is used to adjust the common voltage of the display device every target duration until the common voltage of the display device is equal to the standard common voltage of the display device, and the common voltage after each adjustment is the same as the common voltage before adjustment The absolute value of the difference between them is less than or equal to the first voltage difference, and the absolute value of the difference between the adjusted common voltage and the standard common voltage of the display device is smaller than the pre-adjusted common voltage and the standard common voltage of the display device. The absolute value of the difference between the standard common voltages.

In a third aspect, an embodiment of the present application provides a display device, including: a display panel and the voltage adjustment device described in the second aspect above.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the extreme Sex reversal signal control method.

The technical solution provided by the embodiment of the present application is applied to a display device, including: if it is detected that the screen of the display device is a special screen, and the voltage polarity of each source (ie Source) of the display device needs to be reversed, reverse The voltage polarity of each source of the display device, and at the same time adjust the Vcom of the display device to the first voltage (the difference between the first voltage and Vcom after the shift of the display device is less than or equal to the first voltage difference), and at a subsequent time, Every target duration, adjust the common voltage of the display device until the common voltage of the display device is equal to the standard common voltage of the display device, wherein the absolute value of the difference between the common voltage after each adjustment and the common voltage before adjustment is less than or equal to the first voltage difference, the absolute value of the difference between the adjusted public voltage and the standard public voltage of the display device is smaller than the absolute value of the difference between the pre-adjusted public voltage and the standard public voltage, so that It is possible to make the Vcom of the display device gradually adjust to the standard common voltage within a period of time after the voltage polarity of each source is reversed, instead of falling back instantaneously, thereby avoiding the Vcom of the display device due to the voltage polarity of each source. The brightness of the entire screen changes instantaneously due to the instant drop after inversion, which can improve the flickering phenomenon caused by the polarity change of the Source voltage. At the same time, because Vcom is adjusted to the standard common voltage of the display device, it can be reduced. Lateral crosstalk or color cast due to Vcom offset.

Description of drawings

FIG. 1 is a schematic flowchart of a voltage adjustment method provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a voltage adjusting device provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a display device provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Explanation of reference signs:

11-detection module; 12-adjustment module;

13 - reverse module;

110-display panel; 120-voltage adjustment device;

210-memory; 220-processor.

Detailed ways

Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application. The terms used in the implementation of the embodiments of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

When the display device displays special images such as V-1 line, Dot on off, etc., the common voltage (Vcom) is easily shifted due to panel characteristics, resulting in lateral crosstalk. At present, the source polarity compensation technology is widely used. When a display device is detected to display a special picture, the polarity of the source voltage is changed to reduce the Vcom offset, thereby reducing the lateral crosstalk.

However, at the moment of changing the polarity of Source, Vcom will fall back instantly and return to the standard Vcom of the display device, resulting in a large △Vcom, resulting in an instant change in the brightness of the entire screen, and the human eye is very sensitive to this brightness change. Sensitive, you will feel that the picture has "flicker", causing discomfort. In view of this, the present application provides a voltage adjustment method, which can reduce the horizontal crosstalk caused by Vcom offset when the display device displays a special picture, and at the same time It can also improve the flickering phenomenon of the screen caused by the polarity change of the Source voltage.

Figure 1 is a schematic flow chart of the voltage adjustment method provided by the embodiment of the present application. As shown in Figure 1, the voltage adjustment method provided by the embodiment of the present application may include the following steps:

S110. Detect the screen of the display device.

The picture of the display device may generally include a normal picture and a special picture. When the display device displays a normal picture, each sub-pixel of the display device displays a corresponding gray scale.

The special screen can be V-1line, Dot on off and other screens. When the display device displays the special screen, each row of the screen of the display device will show a phenomenon of being on and off at intervals.

When detecting the picture of the display device, the brightness of each sub-pixel in the picture of the display device can be detected, and the brightness of some sub-pixels in the picture of the display device can also be detected. The brightness of the pixel.

It can be understood that, in addition to detecting the brightness of each sub-pixel, the screen of the display device may also be detected by detecting the chromaticity of each sub-pixel, the driving current of each sub-pixel, and the like.

The picture of the display device can be detected every once in a while. Since it usually takes 2-3 frames to detect the picture of the display device, the picture of the display device can be detected once every interval of at least 3 frames.

S120. Determine whether the screen of the display device is a special screen according to the detection result.

Specifically, if it is detected that the number of bright and dark adjacent sub-pixels in the screen of the display device is greater than or equal to the target number, it may be determined that the screen of the display device is a special screen. The target number may be a preset number.

If it is detected that the number of bright and dark adjacent sub-pixels in the picture of the display device is less than the target number, it can be determined that the picture of the display device is not a special picture, that is, the picture of the display device is a normal picture.

S130. When the screen of the display device is a special screen and the voltage polarity of each source of the display device needs to be reversed, reverse the voltage polarity of each source of the display device and adjust the common voltage of the display device to the first a voltage.

Since the detection of the screen of the display device will be repeated, it is only necessary to reverse each source of the display device when it is detected that the screen of the display device is a special screen for the first time (or a special screen is detected for the second or third time, etc.). The polarity of the voltage of the pole (that is, Source) is enough. In the subsequent detection, even if it is still detected as a special screen, the voltage polarity of Source will not be reversed. Therefore, an inversion flag for indicating whether the Source voltage has been reversed can be set, and the inversion flag can be 0 or 1 (also can be or not, etc.), wherein 0 can indicate that the polarity of the Source voltage has not been reversed, and 1 Can indicate that the polarity of the Source voltage has been reversed.

When a special screen is detected, first check the inversion flag. When the inversion flag is 0, it means that the polarity of the Source voltage has not been reversed. At this time, the polarity of the Source voltage of the display device needs to be reversed. The polarity of the Source voltage of the display device is reversed.

Specifically, since the display device usually performs column inversion during normal display, the polarity of the Source voltage of the display device can be reversed by adjusting the driving mode of the display device from column inversion to 2-line inversion.

It can be understood that the polarity of the Source voltage of the display device can also be reversed by adjusting the driving mode of the display device from column inversion to 1+2 line inversion or other inversion modes.

Because at the moment of changing the polarity of the Source voltage, the coupling of Vcom will be eliminated quickly, and the shifted Vcom will drop back instantly and return to the standard Vcom of the display device, thereby generating a large △Vcom, causing the brightness of the entire screen to appear instantaneously Therefore, the Vcom of the display device can be adjusted to the first voltage while changing the polarity of the Source voltage, so that Vcom will not drop greatly at the moment of changing the polarity of the Source voltage.

The shifted Vcom may be greater than the standard Vcom, or may be smaller than the standard Vcom. In this embodiment, the shifted Vcom is greater than the standard Vcom as an example for illustration.

The first voltage can be the same as the shifted Vcom, and the difference between the first voltage and the shifted Vcom can also be equal to the first voltage difference (at this time, the first voltage is closer to the standard Vcom of the display device than the shifted Vcom ). The first voltage difference can be preset, for example, 0.1V, and can also be adjusted to be larger or smaller than 0.1V according to specific conditions. In this embodiment, the first voltage difference is 0.1V as an example for illustration.

For example, the offset Vcom is 5.05V, and the first voltage difference is 0.1V, so the first voltage is 4.95V.

S140. Adjust the common voltage of the display device every target time period until the common voltage of the display device is equal to the standard common voltage of the display device.

The target duration may be the duration corresponding to the display device displaying 1 frame, or may be 2 frames, 3 frames or other set durations. In this embodiment, an exemplary description is given by taking the target duration as the duration corresponding to the display device displaying one frame of picture as an example.

Specifically, the Vcom of the display device can be adjusted once during the blanking time of each frame, so that Vcom gradually approaches the standard Vcom of the display device until it is equal to the standard Vcom.

During each adjustment, if the difference between the pre-adjustment Vcom minus the standard Vcom is greater than or equal to the first voltage difference, Vcom may be adjusted according to the first voltage difference.

For example, the first voltage is 4.95V, the first voltage difference is 0.1V, and the standard Vcom is 4V. In the blanking time of the first frame after changing the Source voltage polarity, adjust Vcom to 4.85V; in the blanking time of the second frame after changing the Source voltage polarity, adjust Vcom to 4.75V, and so on, until During the blanking time of the ninth frame after changing the polarity of the Source voltage, adjust Vcom to 4.05V.

During each adjustment, if the difference between the pre-adjustment Vcom minus the standard Vcom is less than the first voltage difference, then the Vcom of the display device can be adjusted to the standard Vcom.

For example, when Vcom is adjusted to 4.05V after the blanking time of the 9th frame after changing the polarity of the Source voltage, since the difference between Vcom (4.05V) and the standard Vcom (4V) is smaller than the first voltage difference (0.1V), so Vcom can be directly adjusted from 4.05V to 4V during the blanking time of the 10th frame after changing the polarity of the Source voltage.

S150. In a case where the screen of the display device is a normal screen, adjust the driving mode of the display device to column inversion.

When the display device displays a normal image and the driving mode of the display device is column inversion, the power consumption of the display device is lower and the picture is better. At this time, the driving mode of the display device can be adjusted to column inversion.

The technical solution provided by the embodiment of the present application is applied to a display device, including: if it is detected that the screen of the display device is a special screen, and the voltage polarity of each source (ie Source) of the display device needs to be reversed, reverse The voltage polarity of each source of the display device, and at the same time adjust the Vcom of the display device to the first voltage (the difference between the first voltage and Vcom after the shift of the display device is less than or equal to the first voltage difference), and at a subsequent time, Every target duration, adjust the common voltage of the display device until the common voltage of the display device is equal to the standard common voltage of the display device, wherein the absolute value of the difference between the common voltage after each adjustment and the common voltage before adjustment is less than or equal to the first voltage difference, the absolute value of the difference between the adjusted public voltage and the standard public voltage of the display device is smaller than the absolute value of the difference between the pre-adjusted public voltage and the standard public voltage, so that It is possible to make the Vcom of the display device gradually adjust to the standard common voltage within a period of time after the voltage polarity of each source is reversed, instead of falling back instantaneously, thereby avoiding the Vcom of the display device due to the voltage polarity of each source. The brightness of the entire screen changes instantaneously due to the instant drop after inversion, which can improve the flickering phenomenon caused by the polarity change of the Source voltage. At the same time, because Vcom is adjusted to the standard common voltage of the display device, it can be reduced. Lateral crosstalk or color cast due to Vcom offset.

Those skilled in the art can understand that the above embodiments are exemplary, and are not intended to limit the present application. Where possible, the execution order of one or several steps in the above steps may be adjusted, or selectively combined, to obtain one or more other embodiments. Those skilled in the art can select and combine any of the above steps according to needs, and those that do not deviate from the essence of the scheme of the present application all fall within the scope of protection of the present application.

Based on the same inventive concept, as an implementation of the above method, the embodiment of the present application provides a voltage adjustment device. The embodiment of the voltage adjustment device corresponds to the foregoing method embodiment. Details in the embodiments are described one by one, but it should be clear that the voltage adjusting device in this embodiment can correspondingly implement all the contents in the foregoing method embodiments.

Fig. 2 is a schematic structural diagram of a voltage adjusting device provided in an embodiment of the present application. As shown in Fig. 2 , the voltage adjusting device provided in this embodiment may include: a detection module 11, an inversion module 12 and an adjustment module 13,

The inverting module 12 is used to invert the The voltage polarity of each source of the display device, and adjust the common voltage of the display device to a first voltage, the difference between the first voltage and the shifted common voltage of the display device is less than or equal to the first voltage difference value;

The adjustment module 13 is used to adjust the common voltage of the display device every target duration until the common voltage of the display device is equal to the standard common voltage of the display device, and the common voltage after each adjustment is the same as that before adjustment. The absolute value of the difference between the common voltages is less than or equal to the first voltage difference, and the absolute value of the difference between the adjusted common voltage and the standard common voltage of the display device is less than the pre-adjustment The absolute value of the difference between the common voltage and the standard common voltage.

As an optional implementation manner, the adjustment module 13 is specifically used for:

Every target time length, if the absolute value of the difference between the pre-adjusted common voltage and the standard common voltage of the display device is greater than or equal to the first voltage difference, then adjust the first voltage difference according to the first voltage difference. the common voltage of the display device;

If the absolute value of the difference between the common voltage before adjustment and the standard common voltage of the display device is smaller than the first voltage difference, adjust the common voltage of the display device to the standard common voltage of the display device Voltage.

As an optional implementation manner, when the picture of the display device is a normal picture, the driving mode of the display device is column inversion;

The inversion module 12 is specifically used for:

The driving mode of the display device is adjusted from column inversion to 2line inversion.

As an optional implementation manner, the adjustment module 13 is specifically used for:

The common voltage of the display device is adjusted during the blanking time of the image frame every target duration.

As an optional implementation manner, the adjustment module 13 is also used for:

When the detection module 11 detects that the picture of the display device is a normal picture, the driving mode of the display device is adjusted to column inversion.

As an optional implementation manner, the detection module 11 is specifically used for:

If it is detected that the number of bright and dark adjacent sub-pixels in the picture of the display device is greater than or equal to the target number, then it is determined that the picture of the display device is a special picture.

As an optional implementation manner, the detection module 11 is also used for:

If it is detected that the number of bright and dark adjacent sub-pixels in the picture of the display device is less than the target number, then it is determined that the picture of the display device is a normal picture.

As an optional implementation manner, the target duration is a duration corresponding to displaying one frame of picture by the display device.

The voltage adjusting device provided in this embodiment can execute the above-mentioned method embodiment, and its implementation principle and technical effect are similar, and will not be repeated here.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used for illustration. In practical applications, the above-mentioned functions can be assigned to different functional units, Completion of modules means that the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit, and the above-mentioned integrated units may adopt hardware It can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above system, reference may be made to the corresponding processes in the aforementioned method embodiments, and details will not be repeated here.

Based on the same inventive concept, the embodiment of the present application also provides a display device. FIG. 3 is a schematic structural diagram of the display device provided in the embodiment of the present application. As shown in FIG. 3 , the display device provided in the present embodiment may include: a display panel 110 and the voltage regulator 120 mentioned above.

The display panel 110 may be any type of liquid crystal display panel, such as a thin film transistor (Thin FilmTransistor Liquid Crystal Display, TFT-LCD) based liquid crystal display panel, a light emitting diode (light-emitting diode, LED) based liquid crystal display panel, a secondary A liquid crystal display panel based on a millimeter light emitting diode (Mini-Light Emitting Diode, Mini-LED) or a liquid crystal display panel based on a micron light emitting diode (Micro-Light Emitting Diode, Micro-LED).

All the modules or units in the embodiments of the present application can be implemented by a general integrated circuit, such as a CPU (Central Processing Unit, central processing unit), or an ASIC (Application Specific Integrated Circuit, application specific integrated circuit).

Based on the same inventive concept, the embodiment of the present application also provides an electronic device. FIG. 4 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 4 , the electronic device provided by this embodiment includes: a memory 210 and a processor 220, the memory 210 is used to store computer programs; the processor 220 is used to The methods described in the above method embodiments are executed when the computer program is called.

The electronic device provided in this embodiment can execute the foregoing method embodiment, and its implementation principle and technical effect are similar, and details are not repeated here.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method described in the foregoing method embodiment is implemented.

An embodiment of the present application further provides a computer program product, which, when the computer program product is run on an electronic device, enables the electronic device to implement the method described in the foregoing method embodiments.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted via a computer-readable storage medium. The computer instructions may be transmitted from one web site, computer, server, or data center to another web site, computer, server or data center for transmission. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (Solid State Disk, SSD)) and the like.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments are realized. The processes can be completed by computer programs to instruct related hardware. The programs can be stored in computer-readable storage media. When the programs are executed , may include the processes of the foregoing method embodiments. The aforementioned storage medium may include: ROM or random access memory RAM, magnetic disk or optical disk, and other media capable of storing program codes.

The naming or numbering of the steps in this application does not mean that the steps in the method flow must be executed in the time/logic sequence indicated by the naming or numbering. The execution order of the technical purpose is changed, as long as the same or similar technical effect can be achieved.

In the above-mentioned embodiments, the descriptions of each embodiment have their own emphases, and for parts that are not detailed or recorded in a certain embodiment, refer to the relevant descriptions of other embodiments.

In the embodiments provided in this application, it should be understood that the disclosed device/device and method can be implemented in other ways. For example, the device/device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or Components may be combined or integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and/or components, but does not exclude one or more other Presence or addition of features, wholes, steps, operations, elements, components and/or collections thereof.

In the description of this application, unless otherwise specified, "/" means that the objects associated with each other are an "or" relationship, for example, A/B can mean A or B; "and/or" in this application is only It is an association relationship that describes associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, among which A, B Can be singular or plural.

And, in the description of the present application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple.

As used in this specification and the appended claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting ". Similarly, the phrases "if determined" or "if [the described condition or event is detected]" may be construed, depending on the context, to mean "once determined" or "in response to the determination" or "once detected [the described condition or event] ]” or “in response to detection of [described condition or event]”.

In addition, in the description of the specification and the appended claims of this application, the terms "first", "second", "third" and so on are used to distinguish similar objects, and not necessarily used to describe a specific order or sequence order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein.

Reference to "one embodiment" or "some embodiments" or the like in the specification of the present application means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless specifically stated otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims (10)

1. A voltage adjustment method applied to a display device, comprising:

if the picture of the display device is detected to be a special picture and the voltage polarity of each source electrode of the display device needs to be reversed, reversing the voltage polarity of each source electrode of the display device, and adjusting the common voltage of the display device to be a first voltage, wherein the difference between the first voltage and the common voltage after the display device is deviated is smaller than or equal to a first voltage difference value;

and adjusting the public voltage of the display device every other target duration until the public voltage of the display device is equal to the standard public voltage of the display device, wherein the absolute value of the difference value between the public voltage after each adjustment and the public voltage before each adjustment is smaller than or equal to the first voltage difference value, and the absolute value of the difference value between the public voltage after each adjustment and the standard public voltage of the display device is smaller than the absolute value of the difference value between the public voltage before each adjustment and the standard public voltage.

2. The method of claim 1, wherein adjusting the common voltage of the display device every a target period of time comprises:

every other target duration, if the absolute value of the difference between the common voltage before adjustment and the standard common voltage of the display device is greater than or equal to the first voltage difference, adjusting the common voltage of the display device according to the first voltage difference;

and if the absolute value of the difference value between the common voltage before adjustment and the standard common voltage of the display device is smaller than the first voltage difference value, adjusting the common voltage of the display device to be the standard common voltage of the display device.

3. The method according to claim 1, wherein when the screen of the display device is a normal screen, the display device is driven in a column inversion manner;

the inverting the voltage polarity of each source of the display device includes:

the driving mode of the display device is adjusted from column inversion to 2line inversion.

4. The method of claim 1, wherein adjusting the common voltage of the display device every a target period of time comprises:

and adjusting the public voltage of the display device at the blanking time of the picture frame every other target time length.

5. The method according to claim 1, wherein the method further comprises:

when the display device is detected to be a normal screen, the driving method of the display device is adjusted to be column inversion.

6. The method of claim 1, wherein if the number of bright-dark adjacent sub-pixels in the frame of the display device is detected to be greater than or equal to the target number, determining the frame of the display device to be a special frame.

7. The method according to claim 1, wherein the method further comprises: if the number of bright and dark adjacent sub-pixels in the picture of the display device is detected to be smaller than the target number, the picture of the display device is determined to be a normal picture.

8. The method according to any one of claims 1 to 7, wherein the target duration is a duration corresponding to 1 frame of picture displayed by the display device.

9. A voltage adjustment device for a display device, comprising:

the reversing module is used for reversing the voltage polarity of each source electrode of the display device and adjusting the common voltage of the display device to be a first voltage if the picture of the display device is detected to be a special picture and the voltage polarity of each source electrode of the display device needs to be reversed, wherein the difference between the first voltage and the common voltage after the display device is deviated is smaller than or equal to a first voltage difference value;

the adjustment module is used for adjusting the public voltage of the display device every other target duration until the public voltage of the display device is equal to the standard public voltage of the display device, the absolute value of the difference value between the public voltage after each adjustment and the public voltage before each adjustment is smaller than or equal to the first voltage difference value, and the absolute value of the difference value between the public voltage after each adjustment and the standard public voltage of the display device is smaller than the absolute value of the difference value between the public voltage before each adjustment and the standard public voltage.

10. A display device, comprising: a display panel and a voltage regulating device as claimed in claim 9.

Images