CN113192469B - Display screen ghost eliminating method and device, computer equipment and storage medium - Google Patents
Display screen ghost eliminating method and device, computer equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- 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
- G09G2320/0257—Reduction of after-image effects
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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Abstract
The invention discloses a method and a device for eliminating residual shadows of a display screen, computer equipment and a storage medium, wherein the method for eliminating the residual shadows of the display screen comprises the following steps: correcting the first gamma curve and the second gamma curve so that the first gamma curve and the second gamma curve have the same color temperature and brightness but different combinations of RGBW at each gray scale; and dividing the frame number of the display image according to conditions, so that a part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve. The invention utilizes the characteristic that the color temperature and the temperature of each pixel point are determined by the combination of four RGBW sub-pixels of each corresponding pixel point, and ensures that the RGBW values in the LUT of two gamma curves are different in the same gray scale, but the same color temperature and brightness can be output, and the residual electric field of the display is eliminated, thereby achieving the purpose of lossless ghost elimination.
Description
Technical Field
The invention relates to display counting, in particular to a method and a device for eliminating ghost shadows of a display screen, computer equipment and a storage medium.
Background
With the great popularity of liquid crystal displays, display devices in various industries are completely replaced by liquid crystal displays. However, due to the principle of the liquid crystal display, when the same picture is displayed for too long, the charged ions in the liquid crystal are adsorbed at the two ends of the upper glass and the lower glass to form a built-in electric field, and the ions are not released immediately after the picture is switched, so that the liquid crystal molecules do not rotate to the corresponding angle immediately to form the display ghost phenomenon, and the ghost seriously affects the diagnosis of the user on the display picture.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method and a device for eliminating residual images of a display screen, computer equipment and a storage medium.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a method for eliminating ghost shadow of a display screen is applied to a display screen with two gamma curves which can be switched in real time, and the method comprises the following steps:
correcting the first gamma curve and the second gamma curve so that the first gamma curve and the second gamma curve have the same color temperature and brightness but different combinations of RGBW at each gray scale;
and dividing the frame number of the display image according to conditions, so that a part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve.
The further technical scheme is as follows: the step of correcting the first gamma curve and the second gamma curve so that the color temperature and the brightness of each gray scale of the first gamma curve and the second gamma curve are the same but the combination of the RGBW is different specifically comprises the following steps:
inquiring the RGBW values in a first LUT of a first gamma curve in each gray scale, and the corresponding color temperature and brightness value;
the values of the RGBW in the second LUT of the second gamma curve are adjusted to be completely different from the values of the RGBW in the first LUT of the first gamma curve, but the values of the color temperature and the brightness corresponding to the values of the RGBW in the second LUT of the second gamma curve after adjustment are kept to be the same as the values of the color temperature and the brightness corresponding to the values of the RGBW in the first LUT of the first gamma curve.
The further technical scheme is as follows: the step of dividing the number of frames of the display image according to conditions so that one part of frames of the display image are output by adopting a first gamma curve and the other part of frames are output by adopting a second gamma curve specifically comprises the following steps:
counting the number of frames of the display image according to each frame;
when the frame number is an odd frame, outputting by adopting a first gamma curve;
and when the frame number is an even frame, outputting by adopting a second gamma curve.
In a second aspect, a display screen afterimage elimination apparatus includes a correction unit and a division unit;
the correction unit is used for correcting the first gamma curve and the second gamma curve so that the color temperature and the brightness of each gray scale of the first gamma curve and the second gamma curve are the same but the combination of RGBW is different; wherein, the values of the color temperature and the brightness are obtained by the combination of RGBW;
the dividing unit is used for dividing the frame number of the display image according to conditions, so that one part of the frame of the display image is output by adopting a first gamma curve, and the other part of the frame is output by adopting a second gamma curve.
The further technical scheme is as follows: the correction unit comprises a query module and an adjustment module;
the query module is used for querying the RGBW values in the first LUT of the first gamma curve in each gray scale, and the corresponding color temperature and brightness value;
and the adjusting module is used for adjusting the values of the RGBW in the second LUT of the second gamma curve to be completely different from the values of the RGBW in the first LUT of the first gamma curve, and keeping the color temperature and the brightness obtained by combining the values of the RGBW in the second LUT of the second gamma curve after adjustment to be the same as the color temperature and the brightness obtained by combining the values of the RGBW in the first LUT of the first gamma curve.
The further technical scheme is as follows: the dividing unit comprises a counting module, a first output module and a second output module;
the counting module is used for counting the number of frames of the display image according to each frame;
the first output module is used for outputting by adopting a first gamma curve when the frame number is an odd frame;
and the second output module is used for outputting by adopting a second gamma curve when the frame number is an even frame.
In a third aspect, a computer device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor implements the display screen ghost elimination method steps as described above when executing the computer program.
In a fourth aspect, a storage medium stores a computer program comprising program instructions which, when executed by a processor, cause the processor to perform the display screen afterimage elimination method steps as described above.
Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the characteristic that the color temperature and the temperature of each pixel point are determined by the combination of the RGBW four sub-pixels of each corresponding pixel point, the color temperature and the brightness of all the pixel points can be kept unchanged, the changed combination is only the combination of the four sub-pixels of each pixel point by making the RGBW values in the LUT of the two GAMMA curves different, the frame number of the display picture is divided, different frames are output by different GAMMA curves according to the setting requirement, and the electric field intensity of liquid crystal molecules of the RGBW sub-pixel points is periodically changed due to the physical GAMMA, thereby eliminating the residual electric field effect of the display and achieving the purpose of lossless ghost elimination. Therefore, the display can display a certain stable picture at will, the phenomenon of residual shadow or smear on the liquid crystal screen can not be caused when the display displays a certain picture for a long time, the effect of the display can reach the best state, the display effect is prevented from being influenced by the residual shadow problem of the display by using a software developer or a user to purposefully change the state of the display due to the residual shadow problem of the display, and the user can be more concentrated on the picture.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a first flowchart illustrating a method for eliminating ghost shadows in a display screen according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a second exemplary embodiment of a method for eliminating ghost shadows in a display screen according to the present invention;
FIG. 3 is a flow chart of a third embodiment of the method for eliminating ghost shadow on a display screen according to the present invention;
FIG. 4 is a first schematic structural diagram of an embodiment of a display screen image sticking elimination apparatus according to the present invention;
FIG. 5 is a schematic structural diagram of a second embodiment of the apparatus for eliminating image sticking on a display screen according to the present invention;
FIG. 6 is a third schematic structural diagram of an embodiment of a display screen image sticking elimination apparatus according to the present invention;
FIG. 7 is a schematic block diagram of one embodiment of a computer device of the present invention;
fig. 8 is a table of correspondence of RGBW values with color temperature and luminance in two LUTs per gray scale.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will 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.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The invention discloses a method for eliminating residual shadows of a display screen, which is mainly applied to the display screen with two gamma curves capable of being switched in real time, please refer to figure 1, and comprises the following steps:
s10, correcting the first gamma curve and the second gamma curve to make the color temperature and the brightness of the first gamma curve and the second gamma curve in each gray scale be the same but the combination of RGBW is different.
And S20, dividing the frame number of the display image according to conditions, so that a part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve.
Specifically, the reasons for the afterimage generation are: due to the principle of the liquid crystal display, when the same picture is displayed for too long time, charged ions in the liquid crystal are adsorbed at two ends of the upper glass and the lower glass to form a built-in electric field, and the ions are not released immediately after the picture is switched, so that liquid crystal molecules are not rotated to the corresponding angle immediately to form the display ghost phenomenon.
Therefore, the liquid crystal display requires a dynamic state to adjust the liquid crystal display, so that the liquid crystal molecules are always in a normal active state and cannot form an internal electric field. The RGBW screen ghost eliminating technology and method can eliminate ghost, fully utilize different combination modes of sub-pixel RGBW of each pixel according to the characteristics of the RGBW liquid crystal display, correct two GAMMA curves, enable RGBW values in two curves LUT to be completely different, but can output curve characteristics of the same color temperature and brightness, thereby switching a first GAMMA curve and a second GAMMA curve to output under a certain rule, and enabling each liquid crystal molecule to change into completely different states in a certain period, but having equivalent display states for the pixel, thereby still maintaining the instant effect of images, and being a very good technology for eliminating ghost.
Further, referring to fig. 2, step S10 specifically includes the following steps:
s101, inquiring the RGBW values in a first LUT of a first gamma curve in each gray scale, and corresponding color temperature and brightness values;
s102, adjusting the value of each RGBW in the second LUT of the second gamma curve to be completely different from the value of each RGBW in the first LUT of the first gamma curve, and keeping the color temperature and the brightness value corresponding to the value of each RGBW in the second LUT of the second gamma curve after adjustment to be the same as the color temperature and the brightness value corresponding to the value of each RGBW in the first LUT of the first gamma curve.
Specifically, the two gamma curves are corrected to make the RGBW values in the LUTs of the two gamma curves completely different, but to output the same curve characteristics of color temperature and luminance (the relationship between the color temperature, luminance, and RGBW values is obtained by combining the RGBW values). Therefore, it is necessary to know the RGBW value and the corresponding color temperature and luminance value in the LUT of one of the gamma curves in each gray scale, and when the RGBW value and the corresponding color temperature and luminance value in the LUT of one of the gamma curves are known, the RGBW value in the LUT of the other gamma curve may be adjusted to be completely different while the color temperature and luminance value are ensured to be unchanged. Referring to FIG. 8, FIG. 8 shows that the color temperature and brightness are consistent when the RGBW values in the two LUTs of two gamma are completely different under the same gray scale. As shown in fig. 8 at step1, the first LUT (LUT1) of the first gamma curve has R value of 3, G value of 6, B value of 9, and W value of 1, the second LUT (LUT2) of the second gamma curve has R value of 2, G value of 3, B value of 5, and W value of 3, and both correspond to a color temperature x of 0.2217, a color temperature y of 0.202, and a brightness Lv of 0.512. It is also illustrated from fig. 8 that the RGBW values in the LUT which can realize two gamma curves at the same gray scale are completely different, and the brightness and the color temperature can be kept the same.
Of course, in other embodiments, the RGBW values in the second LUT of the second gamma curve in each gray scale, and the corresponding color temperature and luminance value may be queried first, and then the RGBW values in the LUT of the first gamma curve may be adjusted accordingly.
Further, referring to fig. 3, step S20 specifically includes the following steps:
counting the number of frames of the display image according to each frame;
when the frame number is an odd frame, outputting by adopting a first gamma curve;
and when the frame number is an even frame, outputting by adopting a second gamma curve.
By counting each frame of a display image, when the frame is an odd frame, the RGBW value of a first LUT of a first gamma curve is used for outputting, and when the frame is an even frame, the RGBW value of a second LUT of a second gamma curve is used for outputting, so that the value of each sub-pixel point in the RGBW is automatically changed every frame, but the brightness and the color temperature of the whole pixel point are kept unchanged. By outputting the LUT to the liquid crystal panel in this manner, it is equivalent to switching the LUT twice in the signals of two consecutive frames due to the output change. After the switching, the electric field on each RGBW component is continuously changed, but the brightness and color temperature effect of the display are basically kept unchanged, so that the residual electric field of the display is eliminated, and the aim of lossless afterimage elimination is fulfilled.
Of course, in other embodiments, different gamma curve outputs may be used for the frame number of the display image in other manners, for example, in a periodic cycle manner, if the frame number of the display image is 60 frames in total, it may be designed to switch the gamma curve output every 5 frames, that is, every 5 frames is a period, a frame in the first period is output by the first gamma curve, a frame in the second period is output by the second gamma curve, a frame in the third period is output by the first gamma curve, a frame in the fourth period is output by the second gamma curve, and so on.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the method for eliminating the residual image of the display screen, the embodiment of the invention also provides a device for eliminating the residual image of the display screen. Referring to fig. 4, the display screen image sticking elimination apparatus includes a correction unit 1 and a dividing unit 2;
a correcting unit 1 for correcting the first gamma curve and the second gamma curve such that the first gamma curve and the second gamma curve have the same color temperature and brightness but different combinations of RGBW at each gray level; wherein, the values of the color temperature and the brightness are obtained by the combination of RGBW;
and the dividing unit 2 is used for dividing the frame number of the display image according to conditions, so that a part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve.
Further, referring to fig. 5, the calibration unit 1 includes a query module 11 and an adjustment module 12;
the query module 11 is configured to query RGBW values in the first LUT of the first gamma curve in each gray scale, and corresponding color temperature and brightness values;
and an adjusting module 12, configured to adjust the values of RGBW in the second LUT of the second gamma curve to be completely different from the values of RGBW in the first LUT of the first gamma curve, and keep the color temperature and luminance values obtained by combining the values of RGBW in the second LUT of the second gamma curve after adjustment to be the same as the color temperature and luminance values obtained by combining the values of RGBW in the first LUT of the first gamma curve.
Further, referring to fig. 6, the dividing unit 2 includes a counting module 21, a first output module 22 and a second output module 23;
a counting module 21 for counting the number of frames of the display image per frame;
a first output module 22, configured to output by using a first gamma curve when the frame number is an odd frame;
and a second output module 23, configured to output by using a second gamma curve when the frame number is an even frame.
As shown in fig. 7, an embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of the method for eliminating display screen ghosting described above are implemented.
The computer device 700 may be a terminal or a server. The computer device 700 includes a processor 720, memory, and a network interface 750, which are connected by a system bus 710, where the memory may include non-volatile storage media 730 and internal memory 740.
The non-volatile storage medium 730 may store an operating system 731 and computer programs 732. The computer program 732, when executed, causes the processor 720 to perform any one of the display screen ghosting elimination methods.
The processor 720 is used to provide computing and control capabilities, supporting the operation of the overall computer device 700.
The internal memory 740 provides an environment for running the computer program 732 in the non-volatile storage medium 730, and when the computer program 732 is executed by the processor 720, the processor 720 can be caused to execute any one of the display screen ghosting elimination methods.
The network interface 750 is used for network communication such as sending assigned tasks and the like. Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing device 700 to which the disclosed aspects apply, as a particular computing device 700 may include more or less components than those shown, or may combine certain components, or have a different arrangement of components. Wherein the processor 720 is configured to execute the program code stored in the memory to perform the following steps:
a method for eliminating ghost shadow of a display screen is applied to the display screen with two gamma curves which can be switched in real time, and comprises the following steps:
correcting the first gamma curve and the second gamma curve so that the first gamma curve and the second gamma curve have the same color temperature and brightness but different combinations of RGBW at each gray scale;
and dividing the frame number of the display image according to conditions, so that a part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve.
The further technical scheme is as follows: the step of correcting the first gamma curve and the second gamma curve so that the color temperature and the brightness of each gray scale of the first gamma curve and the second gamma curve are the same but the combination of the RGBW is different specifically comprises the following steps:
inquiring the RGBW values in a first LUT of a first gamma curve in each gray scale, and the corresponding color temperature and brightness value;
the values of the RGBW in the second LUT of the second gamma curve are adjusted to be completely different from the values of the RGBW in the first LUT of the first gamma curve, but the values of the color temperature and the brightness corresponding to the values of the RGBW in the second LUT of the second gamma curve after adjustment are kept the same as the values of the color temperature and the brightness corresponding to the values of the RGBW in the first LUT of the first gamma curve.
The further technical scheme is as follows: the step of dividing the number of frames of the display image according to conditions so that one part of frames of the display image are output by adopting a first gamma curve and the other part of frames are output by adopting a second gamma curve specifically comprises the following steps:
counting the number of frames of the display image according to each frame;
when the frame number is an odd frame, outputting by adopting a first gamma curve;
and when the frame number is an even frame, outputting by adopting a second gamma curve.
It should be understood that, in the embodiment of the present Application, the Processor 720 may be a Central Processing Unit (CPU), and the Processor 720 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Those skilled in the art will appreciate that the configuration of computer device 700 depicted in FIG. 7 is not intended to be limiting of computer device 700 and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be implemented in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of 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 processes of the units and modules in the above-mentioned apparatus may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The method for eliminating the ghost shadow of the display screen is applied to the display screen with two gamma curves which can be switched in real time, and is characterized by comprising the following steps:
correcting the first gamma curve and the second gamma curve so that the first gamma curve and the second gamma curve have the same color temperature and brightness but different combinations of RGBW at each gray scale;
dividing the number of frames of the display image according to conditions, so that one part of frames of the display image are output by adopting a first gamma curve, and the other part of frames are output by adopting a second gamma curve;
the step of correcting the first gamma curve and the second gamma curve so that the color temperature and the brightness of each gray scale of the first gamma curve and the second gamma curve are the same but the combination of the RGBW is different specifically comprises the following steps:
inquiring the RGBW values in a first LUT of a first gamma curve in each gray scale, and the corresponding color temperature and brightness value;
the values of the RGBW in the second LUT of the second gamma curve are adjusted to be completely different from the values of the RGBW in the first LUT of the first gamma curve, but the values of the color temperature and the brightness corresponding to the values of the RGBW in the second LUT of the second gamma curve after adjustment are kept the same as the values of the color temperature and the brightness corresponding to the values of the RGBW in the first LUT of the first gamma curve.
2. The method for eliminating the afterimage on the display screen according to claim 1, wherein the step of dividing the number of frames of the display image by conditions so that a part of the frames of the display image are output by using a first gamma curve and another part of the frames are output by using a second gamma curve specifically comprises:
counting the number of frames of the display image according to each frame;
when the frame number is an odd frame, outputting by adopting a first gamma curve;
and when the frame number is an even frame, outputting by adopting a second gamma curve.
3. The device for eliminating the residual shadow of the display screen is characterized by comprising a correction unit and a dividing unit;
the correction unit is used for correcting the first gamma curve and the second gamma curve so that the color temperature and the brightness of each gray scale of the first gamma curve and the second gamma curve are the same but the combination of RGBW is different; wherein, the values of the color temperature and the brightness are obtained by the combination of RGBW;
the dividing unit is used for dividing the frame number of the display image according to conditions, so that one part of the frames of the display image are output by adopting a first gamma curve, and the other part of the frames are output by adopting a second gamma curve;
the correction unit comprises a query module and an adjustment module;
the query module is used for querying the RGBW values in the first LUT of the first gamma curve in each gray scale, and the corresponding color temperature and brightness value;
and the adjusting module is used for adjusting the values of the RGBW in the second LUT of the second gamma curve to be completely different from the values of the RGBW in the first LUT of the first gamma curve, and keeping the color temperature and the brightness obtained by combining the values of the RGBW in the second LUT of the second gamma curve after adjustment to be the same as the color temperature and the brightness obtained by combining the values of the RGBW in the first LUT of the first gamma curve.
4. The device for eliminating the afterimage on the display screen according to claim 3, wherein the dividing unit comprises a counting module, a first output module and a second output module;
the counting module is used for counting the number of frames of the display image according to each frame;
the first output module is used for outputting by adopting a first gamma curve when the frame number is an odd frame;
and the second output module is used for outputting by adopting a second gamma curve when the frame number is an even frame.
5. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the display screen ghosting elimination method steps as claimed in any one of claims 1 to 2 when executing the computer program.
6. A storage medium storing a computer program comprising program instructions which, when executed by a processor, cause the processor to carry out the display screen ghosting elimination method steps of any of claims 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110469229.XA CN113192469B (en) | 2021-04-28 | 2021-04-28 | Display screen ghost eliminating method and device, computer equipment and storage medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060015022A (en) * | 2004-08-13 | 2006-02-16 | 삼성에스디아이 주식회사 | Plasma display device and method for preventing afterimage thereof |
| CN101261821A (en) * | 2008-05-08 | 2008-09-10 | 友达光电股份有限公司 | Gamma curve compensation method, gamma curve compensation circuit and display system |
| CN101562002A (en) * | 2008-04-16 | 2009-10-21 | Nec液晶技术株式会社 | Controller, hold-type display device, elctronic apparatus and signal adjusting method |
| TW201112215A (en) * | 2009-09-25 | 2011-04-01 | Innolux Display Corp | Method of improving motion blur and contour shadow of a display and display thereof |
| CN102024439A (en) * | 2010-12-31 | 2011-04-20 | 德为显示科技股份有限公司 | Method for eliminating image residues of liquid crystal display |
| CN102467862A (en) * | 2010-11-17 | 2012-05-23 | 京东方科技集团股份有限公司 | Voltage regulation method and device of liquid crystal display panel |
| KR20170135555A (en) * | 2016-05-31 | 2017-12-08 | 엘지디스플레이 주식회사 | Method for improving afterimage of liquid crystal display device |
| CN111524479A (en) * | 2020-06-16 | 2020-08-11 | 广州视源电子科技股份有限公司 | Method, device and storage medium for eliminating ghost |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101798489B1 (en) * | 2011-01-14 | 2017-11-17 | 삼성디스플레이 주식회사 | Device for generating gamma, LCD and Method for driving the LCD |
| US10504403B2 (en) * | 2014-07-15 | 2019-12-10 | Lg Display Co., Ltd. | Liquid crystal panel, liquid crystal display device, and method for driving same |
-
2021
- 2021-04-28 CN CN202110469229.XA patent/CN113192469B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060015022A (en) * | 2004-08-13 | 2006-02-16 | 삼성에스디아이 주식회사 | Plasma display device and method for preventing afterimage thereof |
| CN101562002A (en) * | 2008-04-16 | 2009-10-21 | Nec液晶技术株式会社 | Controller, hold-type display device, elctronic apparatus and signal adjusting method |
| CN101261821A (en) * | 2008-05-08 | 2008-09-10 | 友达光电股份有限公司 | Gamma curve compensation method, gamma curve compensation circuit and display system |
| TW201112215A (en) * | 2009-09-25 | 2011-04-01 | Innolux Display Corp | Method of improving motion blur and contour shadow of a display and display thereof |
| CN102467862A (en) * | 2010-11-17 | 2012-05-23 | 京东方科技集团股份有限公司 | Voltage regulation method and device of liquid crystal display panel |
| CN102024439A (en) * | 2010-12-31 | 2011-04-20 | 德为显示科技股份有限公司 | Method for eliminating image residues of liquid crystal display |
| KR20170135555A (en) * | 2016-05-31 | 2017-12-08 | 엘지디스플레이 주식회사 | Method for improving afterimage of liquid crystal display device |
| CN111524479A (en) * | 2020-06-16 | 2020-08-11 | 广州视源电子科技股份有限公司 | Method, device and storage medium for eliminating ghost |
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