Voltage adjustment method, voltage adjustment device and display device

Abstract

This application provides a voltage adjustment method, a voltage adjustment device, and a display device, relating to the field of display technology. The method includes: if a special screen image is detected and it is necessary to reverse the polarity of the source voltage, reversing the source voltage polarity and adjusting the common voltage of the display device to a first voltage, wherein the difference between the first voltage and the offset common voltage is less than or equal to a first voltage difference value. The common voltage is adjusted every target duration until it equals 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 value, and the absolute value of the difference between the common voltage after each adjustment and the standard common voltage is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage. The technical solution provided by this application can improve the screen flickering phenomenon caused by changes in the polarity of the source voltage.

Description

Technical Field

[0001] This 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 Technology

[0002] With the advancement of display technology, the display effect of display devices is getting better and better. However, when display devices display special images such as V-1line and Dot on off, the common voltage (Vcom) is easily offset due to the characteristics of the panel, resulting in lateral crosstalk.

[0003] To address the aforementioned issues, source polarity compensation technology is commonly used. When a special image is detected on the display device, the polarity of the source voltage is changed to reduce Vcom offset, thereby reducing lateral crosstalk.

[0004] However, changing the polarity of the source voltage causes the brightness of the entire screen to change instantaneously, resulting in screen flickering. Summary of the Invention

[0005] In view of this, this application provides a voltage adjustment method that can reduce lateral crosstalk caused by Vcom offset and improve screen flicker caused by the polarity change of the Source voltage when the display device displays a special screen.

[0006] To achieve the above objectives, in a first aspect, embodiments of this application provide a voltage adjustment method applied to a display device, comprising:

[0007] If it is detected that the screen of the display device is a special screen and it is necessary to reverse the voltage polarity of each source of the display device, the voltage polarity of each source of the display device is reversed, and the common voltage of the display device is adjusted to a first voltage. The difference between the first voltage and the common voltage of the display device after offset is less than or equal to the first voltage difference value.

[0008] At target intervals, the common voltage of the display device is adjusted until the common voltage of the display device is equal to the standard common voltage of the display device. 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 common voltage after each adjustment and the standard common voltage of the display device is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage.

[0009] As an optional implementation of this application, adjusting the common voltage of the display device every target duration includes:

[0010] At each target duration, if the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is greater than or equal to the first voltage difference, then the common voltage of the display device is adjusted according to the first voltage difference;

[0011] If the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is less than the first voltage difference, then the common voltage of the display device is adjusted to the standard common voltage of the display device.

[0012] As an optional implementation of this application, when the display device displays a normal image, the driving mode of the display device is column inversion;

[0013] The reversal of the voltage polarity of each source electrode of the display device includes:

[0014] The driving mode of the display device is changed from column inversion to 2-line inversion.

[0015] As an optional implementation of this application, adjusting the common voltage of the display device every target duration includes:

[0016] At each target duration, during the blanking time of a frame, the common voltage of the display device is adjusted.

[0017] As an optional implementation of this application, the method further includes:

[0018] If the display device is detected to be displaying a normal image, the driving mode of the display device is adjusted to column inversion.

[0019] As an optional implementation of this application, if the number of adjacent sub-pixels with one bright and one dark in the screen of the display device is greater than or equal to the target number, then the screen of the display device is determined to be a special screen.

[0020] As an optional implementation of this application, the method further includes: if the number of adjacent sub-pixels with one bright and one dark in the screen of the display device is less than the target number, then the screen of the display device is determined to be a normal screen.

[0021] As an optional implementation of this application, the target duration is the duration corresponding to the display device displaying one frame of the image.

[0022] Secondly, embodiments of this application provide a voltage adjustment device applied to a display device, comprising:

[0023] 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 it is necessary to invert the voltage polarity of each source of the display device, and adjust the common voltage of the display device to a first voltage, wherein the difference between the first voltage and the common voltage of the display device after the offset is less than or equal to the first voltage difference value.

[0024] An adjustment module is used to adjust the common voltage of the display device at target intervals until the common voltage of the display device is equal to the standard common voltage of the display device. 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 common voltage after each adjustment and the standard common voltage of the display device is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage.

[0025] Thirdly, embodiments of this application provide a display device, including: a display panel and the voltage adjustment device described in the second aspect above.

[0026] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the polarity reversal signal control method as described in the first aspect or any one of the first aspects above.

[0027] The technical solution provided in this application embodiment is applied to a display device, including: if it is detected that the screen of the display device is a special screen and it is necessary to reverse the voltage polarity of each source of the display device, the voltage polarity of each source of the display device is reversed, and the Vcom of the display device is adjusted to a first voltage (the difference between the first voltage and the Vcom after the offset of the display device is less than or equal to the first voltage difference value), and subsequently, at target time intervals, the common voltage of the display device is adjusted 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 value, and each adjustment... The absolute value of the difference between the adjusted common voltage and the standard common voltage of the display device is smaller than the absolute value of the difference between the original common voltage and the standard common voltage. This allows the Vcom of the display device to gradually adjust to the standard common voltage over a period of time after the voltage polarity of each source is reversed, rather than dropping instantly. This avoids the instantaneous change in the brightness of the entire screen caused by the instantaneous drop of Vcom after the voltage polarity of each source is reversed. This can improve the screen flicker caused by the change in the polarity of the source voltage. At the same time, since Vcom is adjusted to the standard common voltage of the display device, it can reduce lateral crosstalk or color cast caused by Vcom offset. Attached Figure Description

[0028] Figure 1 A schematic flowchart illustrating the voltage adjustment method provided in this application embodiment;

[0029] Figure 2 This is a schematic diagram of the voltage adjustment device provided in the embodiments of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the display device provided in the embodiments of this application;

[0031] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 11-Detection module; 12-Adjustment module;

[0034] 13-Reverse module;

[0035] 110 - Display panel; 120 - Voltage adjustment device;

[0036] 210 - Memory; 220 - Processor. Detailed Implementation

[0037] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is only for explaining specific embodiments and is not intended to limit the application. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0038] When displaying special images such as V-1line or Dot on / off, the panel characteristics can easily cause a shift in the common voltage (Vcom), leading to lateral crosstalk. Currently, source polarity compensation technology is commonly used. When a special image is detected on the display device, the polarity of the source voltage is changed to reduce the Vcom shift, thereby reducing lateral crosstalk.

[0039] However, at the instant the source polarity is changed, Vcom will drop back to the standard Vcom of the display device, resulting in a large ΔVcom. This causes the brightness of the entire screen to change instantaneously. The human eye is very sensitive to this change in brightness, which will make the screen appear to "flicker" and cause discomfort. In view of this, this application provides a voltage adjustment method to reduce lateral crosstalk caused by Vcom offset when the display device displays special images, while also improving the screen flicker caused by the change in the polarity of the source voltage.

[0040] Figure 1 This is a schematic flowchart of the voltage adjustment method provided in the embodiments of this application, as shown below. Figure 1 As shown, the voltage adjustment method provided in this application embodiment may include the following steps:

[0041] S110, Detect the screen of the display device.

[0042] The screen of a display device can typically include a normal screen and a special screen. When the display device displays a normal screen, each sub-pixel of the display device displays the corresponding grayscale.

[0043] Special screens can be V-1line, Dot on off, etc. When a special screen is displayed on a display device, the columns of the screen on the display device will show an alternating bright and dark phenomenon.

[0044] When inspecting the screen of a display device, the brightness of each sub-pixel in the screen of the display device can be detected, or the brightness of some sub-pixels in the screen of the display device can be detected, for example, the brightness of each sub-pixel in the odd-numbered rows / even-numbered rows of the display device.

[0045] It is understandable that, in addition to detecting the brightness of each sub-pixel, the image of the display device can also be detected by detecting the chromaticity of each sub-pixel, the driving current of each sub-pixel, and other methods.

[0046] The display screen can be checked every certain period of time. Since checking the display screen usually takes 2-3 frames, the display screen can be checked every 3 frames.

[0047] S120. Determine whether the screen displayed on the device is a special screen based on the test results.

[0048] Specifically, if the number of adjacent sub-pixels that are bright and dark in the display screen is greater than or equal to the target number, the display screen can be determined to be a special screen. The target number can be a pre-set number.

[0049] If the number of adjacent sub-pixels with one bright and one dark in the display screen is less than the target number, it can be determined that the display screen is not an abnormal screen, that is, the display screen is a normal screen.

[0050] S130. When the screen of the display device is a special screen and it is necessary to reverse the voltage polarity of each source of the display device, reverse the voltage polarity of each source of the display device and adjust the common voltage of the display device to the first voltage.

[0051] Since the detection of the display screen is repeated, the voltage polarity of each source terminal (i.e., the source) only needs to be reversed when a special image is detected for the first time (or the second or third time, etc.). In subsequent detections, even if a special image is detected again, the source voltage polarity will not be reversed again. Therefore, a reversal flag can be set to indicate whether the source voltage has been reversed. This reversal flag can be 0 or 1 (or yes or no, etc.), where 0 indicates that the source voltage polarity has not been reversed, and 1 indicates that the source voltage polarity has been reversed.

[0052] When a special screen is detected, first check the inversion indicator. When the inversion indicator is 0, it means that the source voltage polarity has not been reversed. At this time, the source voltage polarity of the display device needs to be reversed.

[0053] Specifically, since the display device is usually inverted column-to-column mode during normal display, the source voltage polarity of the display device can be reversed by changing the driving mode of the display device from column-to-column inversion to 2-line inversion.

[0054] Understandably, the source voltage polarity of the display device can also be reversed by changing the driving mode of the display device from column inversion to 1+2line inversion or other inversion modes.

[0055] Because the coupling of Vcom is quickly eliminated the moment the source voltage polarity is changed, the offset Vcom will drop back instantly and return to the standard Vcom of the display device, thus generating a large ΔVcom, which causes the brightness of the entire screen to change instantly. Therefore, the Vcom of the display device can be adjusted to the first voltage at the same time as the source voltage polarity is changed, so that Vcom will not drop back significantly the moment the source voltage polarity is changed.

[0056] The offset Vcom can be greater than or less than the standard Vcom. In this embodiment, the offset Vcom is greater than the standard Vcom as an example for illustrative purposes.

[0057] The first voltage can be the same as the offset Vcom, or the difference between the first voltage and the offset Vcom can be equal to the first voltage difference (in which case the first voltage is closer to the standard Vcom of the display device than the offset Vcom). The first voltage difference can be preset, such as 0.1V, or it can be adjusted to be larger or smaller than 0.1V depending on the specific situation. In this embodiment, a first voltage difference of 0.1V is used as an example for illustrative purposes.

[0058] For example, if the offset Vcom is 5.05V and the first voltage difference is 0.1V, then the first voltage is 4.95V.

[0059] S140. At target intervals, 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.

[0060] The target duration can be the duration corresponding to displaying 1 frame on the display device, or it can be 2 frames, 3 frames, or other set durations. In this embodiment, the target duration is the duration corresponding to displaying 1 frame on the display device, which is used as an example for illustrative explanation.

[0061] Specifically, the display device's Vcom can be adjusted once during the blanking time of each frame, so that Vcom gradually approaches the display device's standard Vcom until it equals the standard Vcom.

[0062] Each time an adjustment is made, if the difference between the original Vcom and the standard Vcom is greater than or equal to the first voltage difference, then Vcom can be adjusted according to the first voltage difference.

[0063] For example, the first voltage is 4.95V, the first voltage difference is 0.1V, and the standard Vcom is 4V. During the blanking time of the first frame after changing the Source voltage polarity, Vcom is adjusted to 4.85V; during the blanking time of the second frame after changing the Source voltage polarity, Vcom is adjusted to 4.75V, and so on, until the blanking time of the ninth frame after changing the Source voltage polarity, at which point Vcom is adjusted to 4.05V.

[0064] Each time an adjustment is made, if the difference between the original Vcom and the standard Vcom is less than the first voltage difference, then the Vcom of the display device can be adjusted to the standard Vcom.

[0065] For example, when Vcom is adjusted to 4.05V in the blanking time of the 9th frame after the source voltage polarity is changed, since the difference between Vcom (4.05V) and the standard Vcom (4V) at this time is less than the first voltage difference (0.1V), Vcom can be directly adjusted from 4.05V to 4V in the blanking time of the 10th frame after the source voltage polarity is changed.

[0066] S150. When the display screen is displaying a normal image, the drive mode of the display screen is adjusted to column inversion.

[0067] Since the power consumption of the display device is low and the picture quality is good when the display device is driving in column inversion when displaying a normal picture, the driving mode of the display device can be adjusted to column inversion.

[0068] The technical solution provided in this application embodiment is applied to a display device, including: if it is detected that the screen of the display device is a special screen and it is necessary to reverse the voltage polarity of each source of the display device, the voltage polarity of each source of the display device is reversed, and the Vcom of the display device is adjusted to a first voltage (the difference between the first voltage and the Vcom after the offset of the display device is less than or equal to the first voltage difference value), and subsequently, at target time intervals, the common voltage of the display device is adjusted 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 value, and each adjustment... The absolute value of the difference between the adjusted common voltage and the standard common voltage of the display device is smaller than the absolute value of the difference between the original common voltage and the standard common voltage. This allows the Vcom of the display device to gradually adjust to the standard common voltage over a period of time after the voltage polarity of each source is reversed, rather than dropping instantly. This avoids the instantaneous change in the brightness of the entire screen caused by the instantaneous drop of Vcom after the voltage polarity of each source is reversed. This can improve the screen flicker caused by the change in the polarity of the source voltage. At the same time, since Vcom is adjusted to the standard common voltage of the display device, it can reduce lateral crosstalk or color cast caused by Vcom offset.

[0069] Those skilled in the art will understand that the above embodiments are exemplary and not intended to limit this application. Where possible, the execution order of one or more of the above steps can be adjusted, or they can be selectively combined to obtain one or more other embodiments. Those skilled in the art can arbitrarily select and combine the above steps as needed, and all those that do not depart from the essence of this application fall within the protection scope of this application.

[0070] Based on the same inventive concept, as an implementation of the above method, this application provides a voltage adjustment device. This voltage adjustment device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not repeat the details of the aforementioned method embodiment one by one, but it should be clear that the voltage adjustment device in this embodiment can correspondingly implement all the contents of the aforementioned method embodiment.

[0071] Figure 2 This is a schematic diagram of the voltage adjustment device provided in the embodiments of this application, as shown below. Figure 2As shown, the voltage adjustment device provided in this embodiment may include: a detection module 11, a reversal module 12, and an adjustment module 13.

[0072] The reversal module 12 is used to, if the detection module 11 detects that the screen of the display device is a special screen and it is necessary to reverse the voltage polarity of each source of the display device, reverse the voltage polarity of each source of the display device and adjust the common voltage of the display device to a first voltage, wherein the difference between the first voltage and the common voltage of the display device after offset is less than or equal to the first voltage difference value.

[0073] The adjustment module 13 is used to adjust the common voltage of the display device at target intervals until the common voltage of the display device is equal to the standard common voltage of the display device. 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 common voltage after each adjustment and the standard common voltage of the display device is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage.

[0074] As an optional implementation, the adjustment module 13 is specifically used for:

[0075] At each target duration, if the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is greater than or equal to the first voltage difference, then the common voltage of the display device is adjusted according to the first voltage difference;

[0076] If the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is less than the first voltage difference, then the common voltage of the display device is adjusted to the standard common voltage of the display device.

[0077] As an optional implementation, when the display device displays a normal image, the driving mode of the display device is column inversion;

[0078] The inversion module 12 is specifically used for:

[0079] The driving mode of the display device is changed from column inversion to 2-line inversion.

[0080] As an optional implementation, the adjustment module 13 is specifically used for:

[0081] At each target duration, during the blanking time of a frame, the common voltage of the display device is adjusted.

[0082] As an optional implementation, the adjustment module 13 is further configured to:

[0083] If the detection module 11 detects that the display device displays a normal image, it will adjust the driving mode of the display device to column inversion.

[0084] As an optional implementation, the detection module 11 is specifically used for:

[0085] If the number of adjacent sub-pixels with one bright and one dark in the screen of the display device is greater than or equal to the target number, then the screen of the display device is determined to be a special screen.

[0086] As an optional implementation, the detection module 11 is further configured to:

[0087] If the number of adjacent sub-pixels with one bright and one dark in the screen of the display device is less than the target number, then the screen of the display device is determined to be a normal screen.

[0088] As an optional implementation, the target duration is the duration corresponding to the display device displaying one frame.

[0089] The voltage adjustment device provided in this embodiment can perform the above method embodiment, and its implementation principle and technical effect are similar, so it will not be described again here.

[0090] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0091] Based on the same inventive concept, this application also provides a display device. Figure 3 This is a schematic diagram of the structure of the display device provided in the embodiments of this application, such as... Figure 3 As shown, the display device provided in this embodiment may include: a display panel 110 and the voltage adjustment device 120 described above.

[0092] The display panel 110 can be any type of liquid crystal display panel, such as a liquid crystal display panel based on thin film transistor (TFT-LCD), a liquid crystal display panel based on light-emitting diode (LED), a liquid crystal display panel based on mini-light emitting diode (Mini-LED), or a liquid crystal display panel based on micro-light emitting diode (Micro-LED), etc.

[0093] All modules or units in the embodiments of this application can be implemented by general-purpose integrated circuits, such as CPUs (Central Processing Units), or by ASICs (Application Specific Integrated Circuits).

[0094] Based on the same inventive concept, embodiments of this application also provide an electronic device. Figure 4 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application, such as... Figure 4 As shown, the electronic device provided in 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 execute the method described in the above method embodiment when the computer program is invoked.

[0095] The electronic device provided in this embodiment can execute the above method embodiment, and its implementation principle and technical effect are similar, so they will not be described again here.

[0096] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the methods described in the above-described method embodiments.

[0097] This application also provides a computer program product that, when run on an electronic device, causes the electronic device to implement the method described in the above-described method embodiments.

[0098] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially 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 a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, or magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0099] Those skilled in the art will understand that implementing all or part of the processes in the above embodiments can be accomplished by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above method embodiments. The aforementioned storage medium can include various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

[0100] The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical order indicated by the naming or numbering. The execution order of the named or numbered process steps can be changed according to the technical purpose to be achieved, as long as the same or similar technical effect can be achieved.

[0101] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0102] In the embodiments provided in this application, it should be understood that the disclosed apparatus / devices and methods can be implemented in other ways. For example, the apparatus / device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0103] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0104] In the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0105] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0106] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0107] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0108] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A voltage adjustment method applied to a display device, characterized in that, include: The display screen is detected by detecting the driving current or chromaticity of each sub-pixel; When it is detected that the screen of the display device is a special screen and the inversion mark is the first indicator, the voltage polarity of each source of the display device is reversed by adjusting the driving mode of the display device from column inversion to 2-line or 1+2-line inversion. After the voltage polarity of each source of the display device is reversed, the inversion mark is set to the second indicator, which indicates that the voltage polarity of each source of the display device has been reversed. During the process of reversing the voltage polarity of each source of the display device, the common voltage of the display device is adjusted to a first voltage, and the common voltage of the display device is gradually adjusted during the blanking time of each frame or 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 first voltage and the offset common voltage of the display device is less than or equal to the first voltage difference value. 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 value. The absolute value of the difference between the common voltage after each adjustment and the standard common voltage of the display device is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage. The first indicator indicates that the polarity of each source voltage of the display device has not yet been reversed. If the screen on the display device is a special screen and the inversion indicator is a second indicator, it is determined that the voltage polarity of each source terminal of the display device will no longer be inverted.

2. The method according to claim 1, characterized in that, The adjustment of the common voltage of the display device at target intervals includes: At each target duration, if the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is greater than or equal to the first voltage difference, then the common voltage of the display device is adjusted according to the first voltage difference; If the absolute value of the difference between the pre-adjustment common voltage and the standard common voltage of the display device is less than the first voltage difference, then the common voltage of the display device is adjusted to the standard common voltage of the display device.

3. The method according to claim 1, characterized in that, When the display device displays a normal image, the driving mode of the display device is column inversion.

4. The method according to claim 1, characterized in that, The method further includes: If the display device is detected to be displaying a normal image, the driving mode of the display device is adjusted to column inversion.

5. The method according to claim 1, characterized in that, The method further includes: if the number of adjacent sub-pixels with one bright and one dark in the screen of the display device is less than the target number, then the screen of the display device is determined to be a normal screen.

6. The method according to any one of claims 1-5, characterized in that, The target duration is the duration corresponding to the display device displaying one frame of the image.

7. A voltage adjustment device, applied to a display device, characterized in that, include: The inversion module is used to detect the image of the display device by detecting the driving current or the chromaticity of each sub-pixel; When it is detected that the screen of the display device is a special screen and the inversion mark is the first indicator, the voltage polarity of each source of the display device is reversed by adjusting the driving mode of the display device from column inversion to 2-line or 1+2-line inversion. After the voltage polarity of each source of the display device is reversed, the inversion mark is set to the second indicator, which indicates that the voltage polarity of each source of the display device has been reversed. If the screen on the display device is a special screen and the inversion indicator is a second indicator, it is determined that the voltage polarity of each source terminal of the display device will no longer be inverted; An adjustment module is configured to adjust the common voltage of the display device to a first voltage during the process of reversing the voltage polarity of each source of the display device, and to gradually adjust the common voltage of the display device during the blanking time of each frame or 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 first voltage and the offset common voltage of the display device is less than or equal to a first voltage difference value. 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 value. The absolute value of the difference between the common voltage after each adjustment and the standard common voltage of the display device is less than the absolute value of the difference between the common voltage before adjustment and the standard common voltage. A first indicator indicates that the polarity of the voltages of each source of the display device has not yet been reversed.

8. A display device, characterized in that, include: The display panel and the voltage adjustment device as described in claim 7.

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