CN116343704A - Polarity inversion signal control method and device and display device - Google Patents

Polarity inversion signal control method and device and display device Download PDF

Info

Publication number
CN116343704A
CN116343704A CN202310321375.7A CN202310321375A CN116343704A CN 116343704 A CN116343704 A CN 116343704A CN 202310321375 A CN202310321375 A CN 202310321375A CN 116343704 A CN116343704 A CN 116343704A
Authority
CN
China
Prior art keywords
display device
level
picture
inversion signal
polarity inversion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310321375.7A
Other languages
Chinese (zh)
Inventor
聂军
袁海江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Original Assignee
HKC Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HKC Co Ltd filed Critical HKC Co Ltd
Priority to CN202310321375.7A priority Critical patent/CN116343704A/en
Publication of CN116343704A publication Critical patent/CN116343704A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application provides a polarity inversion signal control method and device and a display device, and relates to the technical field of display, wherein the polarity inversion signal control method comprises the following steps: outputting a polarity inversion signal of a first level every a target duration, wherein the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level; detecting a picture of the display device; when the picture of the display device is detected to be a special picture, the polarity inversion signal of the first level is kept to be output; when the screen of the display device is detected as a normal screen, a polarity inversion signal of a second level is output. According to the technical scheme, the transverse crosstalk caused by Vcom offset can be reduced, and meanwhile, the phenomenon of picture flicker caused by polarity change of Source voltage can be improved.

Description

Polarity inversion signal control method and device and display device
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a method and an apparatus for controlling a polarity inversion signal, and a display device.
Background
With the improvement of display technology, the display effect of the display device is also better, but when the display device displays special pictures such as V-1line, dot on off, etc., lateral crosstalk occurs due to the fact that the common voltage (Vcom) is easily shifted due to the panel characteristics.
In view of the above, a Source (Source) polarity compensation technique is currently commonly used, and when a display device is detected to display a special picture, the Vcom offset is reduced by changing the polarity of the Source voltage, so as to reduce the lateral crosstalk.
However, changing the polarity of the Source voltage causes the brightness of the entire picture to change instantaneously, thereby flickering the picture.
Disclosure of Invention
In view of this, the present application provides a polarity inversion signal control method, apparatus, and display device, which are used to reduce the lateral crosstalk caused by Vcom offset and improve the flicker phenomenon caused by the polarity change of Source voltage when the display device displays a special picture.
In order to achieve the above object, in a first aspect, an embodiment of the present application provides a method for controlling a polarity inversion signal, including:
outputting a polarity inversion signal of a first level every a target duration, wherein the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level;
detecting a picture of the display device;
when the picture of the display device is detected to be a special picture, maintaining to output a polarity inversion signal of a first level;
and outputting a polarity inversion signal of a second level when the screen of the display device is detected to be a normal screen.
As an optional implementation manner of this embodiment of the present application, every target duration, a polarity inversion signal of a first level is output at a blanking time of a first frame, and a frame of the display device is detected during a display period of a plurality of second frames after the first frame.
As an optional implementation manner of this embodiment of the present application, when the polarity inversion signal is at the first level, the driving manner of the display device is 2line inversion.
As an optional implementation manner of this embodiment of the present application, when the polarity inversion signal is at the second level, the driving manner of the display device is column inversion.
As an optional implementation manner of the embodiment of the present application, the detecting a picture of the display device includes:
if the number of bright-dark adjacent sub-pixels in the picture of the display device is detected to be greater than or equal to the target number, determining the picture of the display device to be a special picture;
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.
As an optional implementation manner of this embodiment of the present application, the target time period is greater than or equal to a time period corresponding to the display device displaying 3 frames of images.
As an optional implementation manner of the embodiment of the present application, the first level is a high level, and the second level is a low level.
In a second aspect, an embodiment of the present application provides a polarity inversion signal control apparatus, including:
the display device comprises an output module, a display module and a control module, wherein the output module is used for outputting a polarity inversion signal of a first level every a target duration, wherein the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level;
the detection module is used for detecting the picture of the display device;
a holding module for holding and outputting a polarity inversion signal of a first level when the display device is detected to be a special screen;
the output module is further configured to: and outputting a polarity inversion signal of a second level when the screen of the display device is detected to be a normal screen.
In a third aspect, an embodiment of the present application provides a display device, including: a display panel and a polarity inversion signal control apparatus as described in the second aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the polarity inversion signal control method according to the first aspect or any one of the first aspects.
According to the technical scheme provided by the embodiment of the application, the polarity inversion signal of the first level is output at intervals of target time, then the picture of the display device is detected, and the polarity inversion signal of the first level is kept to be output under the condition that the picture of the display device is detected to be a special picture; and outputting a polarity inversion signal of a second level when the picture of the display device is detected to be a normal picture, wherein the polarity inversion signal is of the second level when the display device displays the normal picture, and the first level is opposite to the second level. In the above technical solution, when the display device displays a normal picture, the polarity inversion signal is at the second level, so when the polarity inversion signal is at the first level (i.e., before detecting the picture of the display device), the voltage polarity of Source is inverted, so if the picture of the display device is detected to be a special picture, the voltage polarity of Source is already inverted, thus Vcom will not be greatly coupled to cause a phenomenon of large offset, and lateral crosstalk and color cast caused by Vcom offset can be reduced; in addition, when the polarity of the voltage of Source is inverted, the display device displays a normal picture, and when the polarity of the voltage of Source is inverted, vcom does not deviate greatly, so that even if the polarity of the voltage of Source is inverted, vcom does not drop back greatly (Vcom drop back greatly and causes the voltage difference at two sides of liquid crystal to change greatly, thereby causing picture flicker), so that the scheme can improve the picture flicker phenomenon caused by the polarity change of the voltage of Source; in addition, in the case that the picture of the display device is detected to be a normal picture, the polarity inversion signal of the second level is output, so that the display device can display better, the polarity inversion signal is changed from the first level to the second level, and the polarity of the Source voltage is inverted, but the Vcom does not deviate greatly because of the normal picture, so that the Vcom does not fall back instantaneously when the polarity of the Source voltage is inverted, namely, the flicker of the picture cannot be caused by the polarity change of the Source voltage.
Drawings
Fig. 1 is a schematic flow chart of a method for controlling a polarity inversion signal according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a polarity inversion signal control device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Reference numerals illustrate:
11-an output module; 12-a detection module;
13-a holding module;
110-a display panel; 120-polarity inversion signal control means;
210-memory; 220-processor.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application. The terminology used in the description of the embodiments of the application is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
When the display device displays a special screen such as V-1line and Dot on off, the common voltage (Vcom) is easily shifted due to the characteristics of the panel, so that lateral crosstalk occurs. At present, a Source (Source) polarity compensation technology is generally adopted, and when a display device is detected to display a special picture, the Vcom offset is reduced by changing the polarity of Source voltage, so that the transverse crosstalk is reduced.
However, when the polarity of Source voltage is changed, vcom will fall back instantaneously to the standard Vcom of the display device, so as to generate a larger DeltaVcom, which causes the brightness of the whole picture to change instantaneously, and human eyes are very sensitive to the brightness change, so that the picture is perceived to have 'flicker' to cause discomfort.
The polarity inversion signal control method provided by the application can be realized by a polarity inversion signal control device, wherein the polarity inversion signal control device can be a functional module or an entity module in a display device, when the polarity inversion signal control device is the entity module in the display device, the polarity inversion signal control device can be a chip or a circuit in the display device, and the polarity inversion signal control device can also be integrated on a central control board (timing controller, TCON).
Fig. 1 is a schematic flow chart of a polarity inversion signal control method according to an embodiment of the present application, as shown in fig. 1, the polarity inversion signal control method according to an embodiment of the present application may include the following steps:
s110, outputting a polarity inversion signal of a first level every a target duration.
Because the operations of analysis, counting, determination and the like are usually required to be performed every time the picture of the display device is detected, the operations generally require 2-3 frame times, so that the picture of the display device can be detected once every 3 frame times, and the corresponding target duration can be greater than or equal to the duration corresponding to the 3 frame picture displayed by the display device.
The first level is opposite to the second level, and the second level is a level corresponding to the polarity inversion signal (POLarity Inversion, POL) when the display device displays a normal screen.
The second level may be a high level or a low level, and the first level is a low level when the second level is a high level, and the first level is a high level when the second level is a low level. The display device is used for displaying the normal picture most of the time, that is, the POL maintains the second level most of the time, so that the POL can maintain the low level (that is, the second level is the low level and the first level is the high level) when the display device displays the normal picture in order to save power consumption.
When POL is at the first level, the display device may be driven in a 2-line inversion, a 1+2line inversion, or a reverse mode.
In order to save power consumption, the display device may be driven in column inversion when the display device displays a normal picture (i.e., when POL is at the second level).
Specifically, the POL of the first level may be output every target period of time at the blanking time of the first frame of the screen (i.e., the frame immediately preceding the start of detection of the screen of the display device). Since the picture of the display device is not displayed during the blanking time, the influence of the possible level change of the POL on the picture can be reduced.
If the POL is already at the first level before the POL at the first level is output, the POL at the first level is continuously output.
Before the first level POL is output, if POL is at the second level (normal screen at this time), POL is changed from the second level to the first level, and the polarity of the voltage corresponding to Source is inverted, so that even if the polarity of the voltage of Source is inverted, vcom will not drop out instantaneously (Vcom will change the voltage difference across the liquid crystal greatly, resulting in flicker of the screen).
S120, detecting a picture of the display device.
The display device may generally include a normal screen and a special screen, and each subpixel of the display device generally displays a corresponding gray scale when the display device displays the normal screen.
The special picture can be a V-1line picture, a Dot on off picture and the like, and when the display device displays the special picture, each row of the picture of the display device can show a bright-dark phenomenon at intervals.
When detecting a screen of a display device, the luminance of each sub-pixel in the screen of the display device may be detected, or the luminance of a part of the sub-pixels in the screen of the display device may be detected, for example, the luminance of each sub-pixel in the odd/even lines of the display device.
It is understood that, in addition to detecting the luminance of each sub-pixel, the screen of the display device may be detected by detecting the chromaticity of each sub-pixel, the driving current of each sub-pixel, and the like.
Specifically, the screen of the display device may be detected during the display of several (may be two frames, or may be 3 frames or more) second screen frames after the first screen frame.
Since the voltage polarity of Source has been reversed before detection, even if the frame of the display device is changed from a normal frame to a special frame during detection, vcom will not be greatly coupled to cause a large offset phenomenon, and therefore, the present solution can reduce the lateral crosstalk and color shift caused by Vcom offset caused by the frame of the display device being changed from the normal frame to the special frame during detection.
S130, determining whether the picture of the display device is a special picture according to the detection result.
Specifically, 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, the frame of the display device can be determined to be a special frame. The target number may be a preset number.
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 can be determined to be not a special picture, namely the picture of the display device is a normal picture.
S140, when the screen of the display device is a special screen, the polarity inversion signal of the first level is kept output.
Since the voltage polarity of Source has been inverted when the last POL level before the detection of the picture changes from the second level to the first level (the time point of this change may be the first frame of the current detection period or the first frame of a previous detection period), even if a special picture is displayed, vcom will not be greatly coupled and will not be greatly shifted. Therefore, if the display device is detected to be a special screen, the polarity of the Source voltage is not required to be inverted, and the POL of the first level is required to be output.
And S150, outputting a polarity inversion signal of a second level when the picture of the display device is a normal picture.
In order to enable the display device to display better, if it is detected that the screen of the display device is a normal screen, the POL of the second level may be output so as to restore the driving method of the display device to the driving method corresponding to the normal screen, for example, column inversion or the like.
At this time, POL is changed from the first level to the second level, and the polarity of the Source voltage is inverted, so that the Vcom does not deviate greatly because of the normal picture at this time, and therefore, the Vcom does not drop back in a moment when the polarity of the Source voltage is inverted, that is, the polarity change of the Source voltage does not cause the picture to flicker at this time.
According to the technical scheme provided by the embodiment of the application, the polarity inversion signal of the first level is output at intervals of target time, then the picture of the display device is detected, and the polarity inversion signal of the first level is kept to be output under the condition that the picture of the display device is detected to be a special picture; and outputting a polarity inversion signal of a second level when the picture of the display device is detected to be a normal picture, wherein the polarity inversion signal is of the second level when the display device displays the normal picture, and the first level is opposite to the second level. In the above technical solution, when the display device displays a normal picture, the polarity inversion signal is at the second level, so when the polarity inversion signal is at the first level (i.e., before detecting the picture of the display device), the voltage polarity of Source is inverted, so if the picture of the display device is detected to be a special picture, the voltage polarity of Source is already inverted, thus Vcom will not be greatly coupled to cause a phenomenon of large offset, and lateral crosstalk and color cast caused by Vcom offset can be reduced; in addition, when the polarity of the voltage of Source is inverted, the display device displays a normal picture, and when the polarity of the voltage of Source is inverted, vcom does not deviate greatly, so that even if the polarity of the voltage of Source is inverted, vcom does not drop back greatly (Vcom drop back greatly and causes the voltage difference at two sides of liquid crystal to change greatly, thereby causing picture flicker), so that the scheme can improve the picture flicker phenomenon caused by the polarity change of the voltage of Source; in addition, in the case that the picture of the display device is detected to be a normal picture, the polarity inversion signal of the second level is output, so that the display device can display better, the polarity inversion signal is changed from the first level to the second level, and the polarity of the Source voltage is inverted, but the Vcom does not deviate greatly because of the normal picture, so that the Vcom does not fall back instantaneously when the polarity of the Source voltage is inverted, namely, the flicker of the picture cannot be caused by the polarity change of the Source voltage.
Those skilled in the art will appreciate that the above embodiments are exemplary and not intended to limit the present application. The order of execution of one or more of the above steps may be modified, if possible, or may be combined selectively to yield one or more other embodiments. Those skilled in the art can select any combination from the above steps according to the need, and all the steps do not depart from the spirit of the scheme 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 polarity inversion signal control device, where the embodiment of the polarity inversion signal control device corresponds to the embodiment of the foregoing method, and for convenience of reading, details of the embodiment of the foregoing method are not repeated one by one, but it should be clear that the polarity inversion signal control device in the embodiment can correspondingly implement all the details of the foregoing method embodiment.
Fig. 2 is a schematic structural diagram of a polarity inversion signal control device according to an embodiment of the present application, as shown in fig. 2, the polarity inversion signal control device provided in this embodiment may include: an output module 11, a detection module 12 and a holding module 13.
The output module 11 is configured to output a polarity inversion signal of a first level every a target duration, where the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level;
the detection module 12 is used for detecting the picture of the display device;
a holding module 13 for holding and outputting a polarity inversion signal of a first level when the detection module 12 detects that the screen of the display device is a special screen;
the output module 11 is further configured to: when the detection module 12 detects that the screen of the display device is a normal screen, a polarity inversion signal of a second level is output.
As an alternative embodiment, the output module 11 is specifically configured to output the polarity inversion signal of the first level at the blanking time of the first frame every a target duration, and the detection module 12 is specifically configured to detect the frame of the display device during the display period of the several second frames after the first frame.
As an alternative embodiment, when the polarity inversion signal is at the first level, the display device is driven in a 2line inversion mode.
As an alternative embodiment, when the polarity inversion signal is at the second level, the display device is driven in a column inversion manner.
As an alternative embodiment, the detection module 12 is specifically configured to:
if the number of bright-dark adjacent sub-pixels in the picture of the display device is detected to be greater than or equal to the target number, determining the picture of the display device to be a special picture;
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.
As an optional implementation manner, the target time length is greater than or equal to a time length corresponding to 3 frames of pictures displayed by the display device.
As an alternative embodiment, the first level is a high level, and the second level is a low level.
The polarity inversion signal control device provided in this embodiment may execute the above method embodiment, and its implementation principle and technical effects are similar, and will not be described herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
Based on the same inventive concept, the embodiment of the present application further provides a display device, and fig. 3 is a schematic structural diagram of the display device provided in the embodiment of the present application, as shown in fig. 3, where the display device provided in the embodiment may include: the display panel 110 and the polarity inversion signal control device 120 are described above.
The display panel 110 may be any type of liquid crystal display panel, such as a liquid crystal display panel based on a thin film transistor (Thin Film Transistor Liquid Crystal Display, TFT-LCD), a liquid crystal display panel based on a light-emitting diode (LED), a liquid crystal display panel based on a sub-millimeter light-emitting diode (Mini-Light Emitting Diode, mini-LED), or a liquid crystal display panel based on a Micro-light-emitting diode (Micro-Light Emitting Diode, micro-LED), etc.
All of the modules or units in the embodiments of the present application may be implemented by a general-purpose integrated circuit, such as a CPU (Central Processing Unit ), or by an ASIC (Application Specific Integrated Circuit, application specific integrated circuit).
Based on the same inventive concept, the embodiment of the application also provides electronic equipment. Fig. 4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and as shown in fig. 4, the electronic device provided in the embodiment includes: a memory 210 and a processor 220, the memory 210 for storing a computer program; the processor 220 is configured to perform the method described in the method embodiments above when the computer program is invoked.
The electronic device provided in this embodiment may execute the above method embodiment, and its implementation principle is similar to that of the technical effect, and will not be described herein again.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method described in the above method embodiment.
Embodiments of the present application also provide a computer program product which, when run on an electronic device, causes the electronic device to execute the method described in the above method embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, 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 loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted across a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). 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, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, hard Disk, or magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), or the like.
Those of ordinary skill in the art will appreciate that implementing all or part of the above-described method embodiments may be accomplished by a computer program to instruct related hardware, the program may be stored in a computer readable storage medium, and the program may include the above-described method embodiments when executed. And the aforementioned storage medium may include: ROM or random access memory RAM, magnetic or optical disk, etc.
The naming or numbering of the steps in the present application does not mean that the steps in the method flow must be executed according to the time/logic sequence indicated by the naming or numbering, and the execution sequence of the steps in the flow that are named or numbered may be changed according to the technical purpose to be achieved, so long as the same or similar technical effects can be achieved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other manners. For example, the apparatus/device embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In the description of the present application, unless otherwise indicated, "/" means that the associated object is an "or" relationship, e.g., a/B may represent a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.
Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of the following" or similar expressions thereof, means any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
As used in this specification and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A polarity inversion signal control method, characterized by comprising:
outputting a polarity inversion signal of a first level every a target duration, wherein the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level;
detecting a picture of the display device;
when the picture of the display device is detected to be a special picture, maintaining to output a polarity inversion signal of a first level;
and outputting a polarity inversion signal of a second level when the screen of the display device is detected to be a normal screen.
2. The method according to claim 1, wherein the polarity inversion signal of the first level is output every target period at a blanking time of a first picture frame, and the picture of the display device is detected during a display period of a number of second picture frames subsequent to the first picture frame.
3. The method of claim 1, wherein the display device is driven in a 2line inversion mode when the polarity inversion signal is at the first level.
4. The method of claim 1, wherein the display device is driven in column inversion when the polarity inversion signal is at the second level.
5. The method of claim 1, wherein detecting the display of the display device comprises:
if the number of bright-dark adjacent sub-pixels in the picture of the display device is detected to be greater than or equal to the target number, determining the picture of the display device to be a special picture;
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.
6. The method of claim 1, wherein the target time period is greater than or equal to a time period corresponding to 3 frames of pictures displayed by the display device.
7. The method of any of claims 1-6, wherein the first level is a high level and the second level is a low level.
8. A polarity inversion signal control apparatus, comprising:
the display device comprises an output module, a display module and a control module, wherein the output module is used for outputting a polarity inversion signal of a first level every a target duration, wherein the polarity inversion signal is of a second level when the display device displays a normal picture, and the first level is opposite to the second level;
the detection module is used for detecting the picture of the display device;
a holding module for holding and outputting a polarity inversion signal of a first level when the display device is detected to be a special screen;
the output module is further configured to: and outputting a polarity inversion signal of a second level when the screen of the display device is detected to be a normal screen.
9. A display device, comprising: a display panel and a polarity inversion signal control apparatus according to claim 8.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the polarity inversion signal control method according to any one of claims 1 to 7.
CN202310321375.7A 2023-03-28 2023-03-28 Polarity inversion signal control method and device and display device Pending CN116343704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310321375.7A CN116343704A (en) 2023-03-28 2023-03-28 Polarity inversion signal control method and device and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310321375.7A CN116343704A (en) 2023-03-28 2023-03-28 Polarity inversion signal control method and device and display device

Publications (1)

Publication Number Publication Date
CN116343704A true CN116343704A (en) 2023-06-27

Family

ID=86878525

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310321375.7A Pending CN116343704A (en) 2023-03-28 2023-03-28 Polarity inversion signal control method and device and display device

Country Status (1)

Country Link
CN (1) CN116343704A (en)

Similar Documents

Publication Publication Date Title
US11276357B2 (en) Liquid crystal display device and method of driving the same
KR102072781B1 (en) Display driving method and integrated driving appratus thereon
KR101374425B1 (en) Liquid crystal display and method of controlling dot inversion thereof
US9311873B2 (en) Polarity inversion driving method for liquid crystal display panel, driving apparatus and display device
US11127360B2 (en) Liquid crystal display device and method of driving the same
EP3340227A1 (en) Display apparatus and method for driving the same
JP2011053693A (en) Liquid crystal display device reduced in flicker, and method for reducing flicker
KR20160109905A (en) Gate Driver, Display driver circuit and display device comprising thereof
US20210201729A1 (en) Driving method and driving system for display apparatuses
WO2023216611A1 (en) Driving method for display device, and display device
CN102237058B (en) Display controller and driving method of liquid crystal display panel
KR20140147300A (en) Display device and driving method thereof
CN112750399A (en) Display panel driving method and device, display device, equipment and storage medium
US8497887B2 (en) Display driving unit and method for using the same
KR20070062836A (en) Circuit for and method of preventing image sticking in lcd module
US20090189925A1 (en) Liquid crystal display and driving method thereof
KR20160065393A (en) Liquid crystal display device and method for driving the same
KR101802516B1 (en) Liquid Crystal Display Device and Driving Method of the same
CN117496861A (en) Display device for driving pixels by processing image data
CN116343704A (en) Polarity inversion signal control method and device and display device
US8587620B2 (en) Driver of a liquid crystal display panel and method thereof
US20210193065A1 (en) Balancing alternate frame times on a variable refresh rate display
US11114038B2 (en) Display control apparatus, display control method, and display apparatus
CN116364034A (en) Voltage adjusting method, voltage adjusting device and display device
US10867572B2 (en) Image display device and display method for image display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination