CN108922486B - Gamma adjustment method, device and computer readable storage medium - Google Patents
Gamma adjustment method, device and computer readable storage medium Download PDFInfo
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- CN108922486B CN108922486B CN201810795382.XA CN201810795382A CN108922486B CN 108922486 B CN108922486 B CN 108922486B CN 201810795382 A CN201810795382 A CN 201810795382A CN 108922486 B CN108922486 B CN 108922486B
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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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- 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
Abstract
The invention provides a gamma adjustment method, a gamma adjustment device and a computer readable storage medium. The gamma adjustment method includes the steps of: setting the reference gamma parameter as a test gamma parameter; driving the liquid crystal display module to be adjusted by using the test gamma parameter; acquiring an actual measurement transmittance of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter; judging whether the actually measured transmittance is within the transmittance control range; if yes, storing the tested gamma parameter into an integrated circuit of the liquid crystal display module to be adjusted; if not, one standard gamma parameter is selected from the multiple gamma standard parameters in sequence to be set as a test gamma parameter, and the step is returned: and driving the liquid crystal display module to be adjusted by using the testing gamma parameter until the actually measured transmittance is within the transmittance control range. According to the technical scheme, all the gamma rays of the liquid crystal display modules are within the control range when the liquid crystal display modules are produced in large scale, so that products beyond the control range are prevented from being scrapped, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of liquid crystal display modules, in particular to a gamma adjusting method, a gamma adjusting device and a computer readable storage medium.
Background
With the great application in the field of liquid crystal display module mobile phones and the innovation of display technology, people have higher and higher requirements on the consistency of the Gamma curves of the liquid crystal display modules, but due to the difference of manufacturing materials, manufacturing processes and production batches used by the liquid crystal display modules, the Gamma curves of different liquid crystal display module monomers have obvious difference even in the same model, and the difference shows that the display is white or dark visually in user experience; this requires reducing the difference in Gamma curve between liquid crystal display modules produced in large quantities. The existing method for controlling the Gamma curve cannot guarantee that all the Gamma curves of the liquid crystal display modules are within the control range in mass production by 100 percent, products beyond the control range can only be scrapped, and the production cost is increased.
Disclosure of Invention
The invention mainly aims to provide a gamma adjusting method, a gamma adjusting device and a computer readable storage medium, and aims to realize that all gamma values of liquid crystal display modules are within a control range when the liquid crystal display modules are produced in large scale.
In order to achieve the above object, the present invention provides a gamma adjustment method, comprising the steps of:
acquiring a gamma control range, and converting the gamma control range into a transmittance control range;
acquiring a reference gamma parameter and a standard gamma parameter corresponding to the model of the liquid crystal display module to be adjusted from a gamma database;
setting the reference gamma parameter as a test gamma parameter;
driving the liquid crystal display module to be adjusted by using the test gamma parameter;
acquiring the actually measured transmittance of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
judging whether the actually measured transmittance is within the transmittance control range;
when the actually measured transmittance is within the transmittance control range, storing the test gamma parameter into an integrated circuit of the liquid crystal display module to be adjusted;
when the measured transmittance is not within the transmittance control range, one standard gamma parameter is selected from the multiple gamma standard parameters in sequence to be set as a test gamma parameter, and the method returns to the step: and driving the liquid crystal display module to be adjusted by using the test gamma parameter until the actually measured transmittance is within the transmittance control range.
Preferably, before the step of obtaining the reference gamma parameter and the standard gamma parameter corresponding to the model of the liquid crystal display module to be adjusted from the gamma database, the gamma adjusting method further includes the steps of:
obtaining a plurality of gamma subarea interval ranges, and converting the gamma subarea interval ranges into a plurality of transmittance subarea interval ranges;
acquiring a reference gamma parameter, and driving a plurality of sampling liquid crystal display modules with the same model by the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules;
setting the sampling liquid crystal display module of which the transmittance falls in the central area of each transmittance subarea interval range in the plurality of sampling liquid crystal display modules as a sample liquid crystal display module;
adjusting configuration parameters for driving the sample liquid crystal display modules to enable the transmittance of each sample liquid crystal display module to fall into the transmittance control range;
and setting the configuration parameters used when the transmittance of each sample liquid crystal display module falls into the transmittance control range as the standard gamma parameters corresponding to the model and storing the standard gamma parameters into the gamma database.
Preferably, before the step of obtaining a reference gamma parameter and driving a plurality of sampling liquid crystal display modules of the same model with the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules, the gamma adjusting method further comprises the steps of:
driving one sampling liquid crystal display module according to any configuration parameter;
adjusting the configuration parameters to enable the transmittance of the sampling liquid crystal display module to fall within the transmittance control range;
and setting the configuration parameters of the sampling liquid crystal display module when the transmittance falls within the transmittance control range as the reference gamma parameters, and storing the reference gamma parameters in the gamma database.
Preferably, before the step of obtaining a reference gamma parameter and driving a plurality of sampling liquid crystal display modules of the same model with the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules, the gamma adjusting method further comprises the steps of:
controlling one sampling liquid crystal display module to respectively display 0-n gray scale pictures, wherein n is the maximum gray scale number which can be supported by the liquid crystal display module to be adjusted;
respectively acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures;
when the sampling liquid crystal respectively displays each module to display 0-n gray scale pictures, adjusting configuration parameters, and re-acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures until the transmittance of the sampling liquid crystal display module falls into the transmittance control range;
and setting the configuration parameters used when the transmittance of the sampling liquid crystal display module falls into the transmittance control range as the reference gamma parameters and storing the reference gamma parameters into the gamma database.
Preferably, the gamma adjustment method further comprises the steps of:
associating each standard gamma parameter with a transmittance partition interval range where the transmittance of the sample liquid crystal display module corresponding to the obtained standard gamma parameter is located, and storing the standard gamma parameter and the transmittance partition interval range to the gamma database;
the step of sequentially selecting one standard gamma parameter from the plurality of gamma standard parameters to be set as a test gamma parameter comprises the following steps:
judging whether the actually measured transmittance of the liquid crystal display module to be adjusted falls within one of the transmittance subarea interval ranges;
when the actually measured transmittance of the liquid crystal display module to be adjusted is within one transmittance subarea interval range, sequentially setting standard gamma parameters corresponding to the transmittance subarea interval range as test gamma parameters from near to far according to the transmittance subarea interval range where the actually measured transmittance is;
the gamma adjustment method further includes the steps of:
when the actually measured transmittance of the liquid crystal display module to be adjusted does not fall within one of the transmittance partition interval ranges, adjusting configuration parameters to enable the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range, setting the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range as standard gamma parameters, and storing the standard gamma parameters into the gamma database.
Preferably, the gamma adjusting method further comprises the steps of:
when the actually measured transmittance is not within the transmittance control range, judging whether all the standard gamma parameters are set as test gamma parameters respectively;
when all the standard gamma parameters are not set as the test gamma parameters respectively, executing the following steps: judging whether the actually measured transmittance of the liquid crystal display module to be adjusted falls within one of the transmittance subarea interval ranges;
when all the standard gamma parameters have been set as test gamma parameters, respectively, performing the steps of: and adjusting configuration parameters to enable the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range, setting the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range as standard gamma parameters, and storing the standard gamma parameters into the gamma database.
Preferably, the step of driving the liquid crystal display module to be adjusted by using the test gamma parameter includes:
driving the liquid crystal display module to be adjusted by using the test gamma parameter and displaying a picture with the gray scale of 0, m and 255, wherein m is more than 0 and less than 255;
when the actually measured transmittance is within the transmittance control range, the step of storing the test gamma parameter into the integrated circuit of the liquid crystal display module to be adjusted comprises:
and when the to-be-adjusted liquid crystal display module displays a picture with gray scales of 0, m and 255 and the actually-measured transmittance is within the transmittance control range, storing the test gamma parameter into the integrated circuit of the to-be-adjusted liquid crystal display module.
Preferably, the step of obtaining the measured transmittance of the liquid crystal display module to be adjusted when the test gamma parameter drives the liquid crystal display module to be adjusted includes:
acquiring the actual measurement brightness of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
and converting the measured brightness into the measured transmittance.
In addition, in order to achieve the above object, the present invention further provides a gamma adjusting device, which includes a processor, a memory, and a gamma adjusting program stored on the memory and executable by the processor, wherein the gamma adjusting program implements the steps of the above gamma adjusting method when executed by the processor.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium having a gamma adjustment program stored thereon, wherein when the gamma adjustment program is executed by a processor, the steps of the gamma adjustment method described in any one of the above are implemented.
According to the technical scheme, the reference gamma parameters and the standard gamma parameters in the gamma database are used for driving the liquid crystal display module to be adjusted in sequence until the transmittance of the liquid crystal display module to be adjusted is within the transmittance control range, so that all the gamma of the liquid crystal display module are within the control range during mass production, the products beyond the range are prevented from being scrapped, and the production cost is reduced.
Drawings
FIG. 1 is a schematic flowchart of a gamma adjustment method according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a gamma adjustment method according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a gamma adjustment method according to a third embodiment of the present invention;
FIG. 4 is a flowchart illustrating a gamma adjustment method according to a fourth embodiment of the present invention;
FIG. 5 is a flowchart illustrating a fifth embodiment of a gamma adjustment method according to the present invention;
FIG. 6 is a flowchart illustrating a gamma adjustment method according to a sixth embodiment of the present invention;
fig. 7 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, in a first embodiment of the present invention, a gamma adjustment method includes:
s101: acquiring a gamma control range, and converting the gamma control range into a transmittance control range;
in the implementation process, a user may set a Gamma control range, where the Gamma control range is represented by a Gamma value, for example, but not limited to, Gamma 2.1-Gamma 2.3, where Gamma (Gamma) values are different and indicate that the liquid crystal display module is visually white or dark, and there is a corresponding relationship between the Gamma value and the transmittance. Because be not convenient for acquire the transmissivity of treating the adjustment LCD module, consequently convert the gamma management and control scope into corresponding transmissivity management and control scope, whether the accessible judges the actual measurement transmissivity of treating the adjustment LCD module and falls in the transmissivity management and control scope like this in order to judge whether the gamma value of treating the adjustment LCD module falls in the gamma management and control scope.
S102: acquiring a reference gamma parameter and a standard gamma parameter corresponding to the model of the liquid crystal display module to be adjusted from a gamma database;
the gamma database stores a reference gamma parameter and a plurality of standard gamma parameters corresponding to the model of the liquid crystal display module to be adjusted, so that the reference gamma parameter and the plurality of standard gamma parameters can be directly extracted from the gamma database when the liquid crystal display module to be adjusted is adjusted;
s103: setting the reference gamma parameter as a test gamma parameter;
s104: driving the liquid crystal display module to be adjusted by using the test gamma parameter;
s105: acquiring an actual measurement transmittance of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
s106: judging whether the actually measured transmittance is within the transmittance control range;
s107: when the actually measured transmittance is within the transmittance control range, storing the test gamma parameter into an integrated circuit of the liquid crystal display module to be adjusted;
when the actually measured transmittance of the liquid crystal display module to be adjusted is within the transmittance control range, the gamma value of the liquid crystal display module to be adjusted is within the gamma control range, so that the process of gamma adjustment of the liquid crystal display module to be adjusted is also completed, and the test gamma parameter which enables the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range is stored in the integrated circuit of the liquid crystal display module to be adjusted. When the liquid crystal display module is used subsequently, the testing gamma parameter is extracted from the integrated circuit, and the liquid crystal display module is driven by the testing gamma parameter, so that the gamma value of the liquid crystal display module is always within the gamma control range.
S108: when the actually measured transmittance is not within the transmittance control range, one standard gamma parameter is selected from the plurality of gamma standard parameters in sequence to be set as a test gamma parameter.
When the actually measured transmittance is not within the transmittance control range, the gamma value of the liquid crystal display module to be adjusted is not within the gamma control range, and at this time, the test gamma parameter for driving the liquid crystal display module to be adjusted needs to be changed. In this embodiment, when the actually measured transmittance is not within the transmittance control range, one standard gamma parameter is sequentially selected from the plurality of gamma standard parameters to be set as the test gamma parameter, and the step S104 is returned until the actually measured transmittance is within the transmittance control range. The gamma value of the liquid crystal display module to be adjusted is adjusted by driving the liquid crystal display module to be adjusted by using the reference gamma parameter and the plurality of standard gamma parameters until the gamma value of the liquid crystal display module to be adjusted falls into the gamma control range, so that the gamma adjustment efficiency can be improved. When the liquid crystal display module to be adjusted is produced for multiple times, all the liquid crystal display modules to be adjusted can be ensured to fall into the gamma control range.
According to the technical scheme, the reference gamma parameters and the standard gamma parameters in the gamma database are used for driving the liquid crystal display module to be adjusted in sequence until the transmittance of the liquid crystal display module to be adjusted is within the transmittance control range, so that the gamma values of all the liquid crystal display modules are within the control range when the liquid crystal display modules are produced in large scale, the liquid crystal display modules beyond the range are prevented from being scrapped, and the production cost is reduced. Moreover, the gamma control range can be narrower, and the consistency of the display effect of the liquid crystal display module is improved.
It should be noted that step S101 is not limited to be executed before step S102, nor is it limited to be executed only once, and may be executed before any step requiring the use of the transmittance control range. For example, in the first embodiment of the present invention, step S101 only needs to be performed before step S106.
Referring to fig. 2, based on the first embodiment of the present invention, in the second embodiment of the present invention, before step S102, the gamma adjustment method further includes the steps of:
s109: obtaining a plurality of gamma subarea interval ranges and converting the gamma subarea interval ranges into a plurality of transmittance subarea interval ranges;
the gamma zone interval range can be set according to the gamma control range, and the gamma zone interval range covers the gamma control range. For example, when the Gamma control range is Gamma 2.1-Gamma 2.3, the Gamma partition interval range may be Gamma 1.9-Gamma 2.1, Gamma 2.1-Gamma 2.3, Gamma 2.3-Gamma 2.5. Of course, the range of the gamma partition interval is not limited to the above range, and the above range of the partition interval is only used as an exemplary illustration, and in practical application, the range of the gamma partition may be divided into smaller and larger ranges according to practical requirements.
S110: acquiring a reference gamma parameter and driving a plurality of sampling liquid crystal display modules with the same model by the reference gamma parameter so as to measure the transmittance of the plurality of sampling liquid crystal display modules;
a plurality of liquid crystal display modules can be selected as sampling liquid crystal display modules from a batch of liquid crystal display modules to be adjusted with the same model.
S111: setting the sampling liquid crystal display module with the transmittance falling in the central area of each transmittance partition interval range in the plurality of sampling liquid crystal display modules as a sample liquid crystal display module;
there is a correspondence between the range of the transmittance partition interval and the range of the gamma partition interval. For example, when the Gamma value of the sampling liquid crystal display module is 2.2, the sampling liquid crystal display module is set as the sample liquid crystal display module in the central area of the Gamma subarea interval range Gamma 2.1-Gamma 2.3, namely the central area of the sampling liquid crystal display module in which the transmittance falls in each transmittance subarea interval range. When the Gamma division interval range may be Gamma 1.9-Gamma 2.1, Gamma 2.1-Gamma 2.3, Gamma 2.3-Gamma 2.5, the sample liquid crystal display modules having Gamma values of 2.0, 2.2, and 2.4 are set as the sample liquid crystal display modules.
S112: adjusting configuration parameters for driving the sample liquid crystal display modules to enable the transmittance of each sample liquid crystal display module to fall into a transmittance control range;
s113: and setting the configuration parameters used when the transmittance of each sample liquid crystal display module falls into the transmittance control range as standard gamma parameters corresponding to the model and storing the standard gamma parameters into a gamma database.
Therefore, the plurality of standard gamma parameters are stored in the gamma database, when the liquid crystal display module is required to be adjusted, the plurality of standard gamma parameters can be directly extracted from the gamma database, the liquid crystal display module is driven to be adjusted by using the reference gamma parameters and the plurality of standard gamma parameters to adjust the gamma value of the liquid crystal display module to be adjusted, and the gamma adjustment efficiency can be improved until the gamma value of the liquid crystal display module to be adjusted falls into a gamma control range.
It should be noted that the above steps in the second embodiment of the present invention may be executed before step S102, after step S101, or before step S101.
Referring to fig. 3, according to a third embodiment of the present invention, before step S110, the gamma adjustment method further includes the steps of:
s114: driving a sampling liquid crystal display module by any configuration parameter;
s115: adjusting the configuration parameters to enable the transmittance of the sampling liquid crystal display module to fall within the transmittance control range;
s116: and setting the configuration parameters of the sampling liquid crystal display module when the transmittance falls within the transmittance control range as reference gamma parameters, and storing the reference gamma parameters in a gamma database.
Therefore, the configuration parameters of one sampling liquid crystal display module are adjusted to enable the transmittance of the sampling liquid crystal display module to fall within the transmittance control range, the configuration parameters used when the transmittance falls within the transmittance control range are set as the reference gamma parameters, the reference gamma parameters are stored in the gamma database, and the reference gamma parameters can drive other sampling liquid crystal display modules and the liquid crystal display module to be adjusted. When needing to adjust other sampling liquid crystal display module or treating the gamma of adjusting the liquid crystal display module assembly, can directly extract a plurality of standard gamma parameters from the gamma database, treat to adjust the gamma value of liquid crystal display module assembly through using benchmark gamma parameter and a plurality of standard gamma parameter drive to adjust, until the gamma value of treating to adjust the liquid crystal display module assembly falls into gamma management and control within range, can improve gamma adjustment efficiency like this.
Referring to fig. 4, according to a fourth embodiment of the present invention, before step S110, the gamma adjustment method further includes the steps of:
s117: controlling a sampling liquid crystal display module to respectively display 0-n gray scale pictures, wherein n is the maximum gray scale number which can be supported by the liquid crystal display module to be adjusted;
s118: respectively acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures;
s119: when the sampling liquid crystal respectively displays each module to display 0-n gray scale pictures, adjusting configuration parameters, and re-acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures until the transmittance of the sampling liquid crystal display module falls into the transmittance control range;
the transmittance is related to the gray scale of the image displayed by the liquid crystal display module. Therefore, the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures needs to be obtained, so that the transmittance is within the transmittance control range when the sampling liquid crystal display module displays each gray scale picture. When the gray scale is m and Gamma is a, the conversion relationship between transmittance and Gamma is: and Tm is (m/n) ^ A, and the gamma control range can be converted into the transmittance control range according to the conversion relation.
S120: and setting configuration parameters used when the transmittance of the sampling liquid crystal display module falls into the transmittance control range as reference gamma parameters and storing the reference gamma parameters into a gamma database.
The method comprises the steps of controlling a sampling liquid crystal display module to display a picture with 0 gray scale, obtaining the transmittance of the sampling liquid crystal display module when the sampling liquid crystal display module displays the picture with 0 gray scale, adjusting configuration parameters to enable the transmittance of the sampling liquid crystal display module when the sampling liquid crystal display module displays the picture with 0 gray scale to fall into a transmittance control range, then controlling the sampling liquid crystal display module to display the picture with 1 gray scale, obtaining the transmittance of the sampling liquid crystal display module when the sampling liquid crystal display module displays the picture with 1 gray scale, adjusting the configuration parameters to enable the transmittance of the sampling liquid crystal display module when the sampling liquid crystal display module displays the picture with 1 gray scale to fall into the transmittance control range, controlling the sampling liquid crystal display module to sequentially display the pictures with 0 gray scale to n gray scale, adjusting the configuration parameters to enable the transmittances of the sampling liquid crystal display module when the sampling liquid crystal display module displays the picture with 0 gray scale to n gray scale to fall into the transmittance control range, and setting the configuration Storing the data into a gamma database.
Therefore, the obtained reference gamma parameters can enable the transmittance of the sampling liquid crystal display module to fall within the transmittance control range when the sampling liquid crystal display module displays 0-n gray scale pictures, so that the subsequent process of driving other sampling liquid crystal display modules by using the reference parameters and obtaining the standard gamma parameters is faster, the obtained standard gamma parameters are more reliable, and the gamma adjusting efficiency can be improved.
Referring to fig. 5, according to the second embodiment of the present invention, in the fifth embodiment of the present invention, the gamma adjustment method further includes the steps of:
associating each standard gamma parameter with a transmittance partition interval range where the transmittance of the sample liquid crystal display module corresponding to the obtained standard gamma parameter is located, and storing the standard gamma parameter and the transmittance partition interval range to a gamma database;
step S108 includes:
s1081: judging whether the actually measured transmittance of the liquid crystal display module to be adjusted falls within one transmittance partition interval range;
s1082: when the actually measured transmittance of the liquid crystal display module to be adjusted falls within one transmittance subarea interval range, sequentially setting standard gamma parameters corresponding to the transmittance subarea interval range as test gamma parameters from near to far according to the transmittance subarea interval range where the actually measured transmittance is located;
in step S11, the sample liquid crystal display module having the transmittance falling in the central region of each transmittance partition interval range is set as the sample liquid crystal display module, and in step S113, the configuration parameter of the sample liquid crystal display module having the transmittance falling in the transmittance control range is set as the standard gamma parameter, so that each standard gamma parameter corresponds to one transmittance partition interval range. For example, when the Gamma control range is Gamma 2.1-Gamma 2.3, the Gamma partition interval range is Gamma 1.7-Gamma 1.9, Gamma 1.9-Gamma 2.1, and Gamma 2.1-Gamma 2.3, the standard Gamma parameters corresponding to the transmittance partition interval range are sequentially set as the test Gamma parameters from near to far in the transmittance partition interval range where the measured transmittance is located, that is, Gamma 2.1-Gamma 2.3, Gamma 1.9-Gamma 2.1, and Gamma 1.7-Gamma 1.9 are sequentially set as the test Gamma parameters.
When the actually measured transmittance of the liquid crystal display module to be adjusted falls within one transmittance partition interval range, the standard gamma parameter corresponding to the transmittance partition interval range is set as the test gamma parameter, and the test gamma parameter is used for driving the liquid crystal display module to be adjusted, so that the possibility that the real-time transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range is higher. According to the transmittance zone interval range at which the actually measured transmittance falls, the standard gamma parameters corresponding to the transmittance zone interval ranges adjacent to the transmittance zone interval range falling into the actually measured transmittance are sequentially set to be the test gamma parameters from near to far, so that the actually measured transmittance of the liquid crystal display module to be adjusted can be more rapidly enabled to fall into the transmittance control range. Thus, the efficiency of gamma adjustment can be effectively improved.
The gamma adjustment method further includes the steps of:
s121: when the actually measured transmittance of the liquid crystal display module to be adjusted does not fall within one transmittance partition interval range, adjusting the configuration parameters to enable the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range, setting the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range as standard gamma parameters, and storing the standard gamma parameters into a gamma database.
When the actually measured transmittance of the liquid crystal display module to be adjusted falls within one of the transmittance partition interval ranges, the standard gamma parameters in the gamma database may not allow the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range. Under the circumstance, the configuration parameters need to be readjusted, so that the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range, and the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range are set as standard gamma parameters and stored in the gamma database for the next gamma adjustment.
Referring to fig. 6, according to a fifth embodiment of the present invention, in a sixth embodiment of the present invention, a gamma adjustment method further includes the steps of:
s122: when the actually measured transmittance is not within the transmittance control range, judging whether all standard gamma parameters are set as test gamma parameters respectively;
the standard gamma parameters in the gamma database are limited, when all the standard gamma parameters are set as the test gamma parameters respectively and the actually measured transmittance is still not in the transmittance control range, in order to avoid setting the same standard gamma parameters as the test gamma parameters and causing repeated useless steps in the gamma adjustment process, when the actually measured transmittance is not in the transmittance control range, whether all the standard gamma parameters are set as the test gamma parameters respectively needs to be judged.
When all the standard gamma parameters are not set as the test gamma parameters, respectively, the step S1081 is performed;
when all the standard gamma parameters have been set as the test gamma parameters, respectively, step S121 is performed.
That is, after all the standard gamma parameters are set as the test gamma parameters, when the actually measured transmittance is still not within the transmittance control range, the configuration parameters need to be readjusted, so that the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range, and the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range are set as the standard gamma parameters and stored in the gamma database for the next gamma adjustment.
In a seventh embodiment of the present invention based on the first embodiment of the present invention, step S104 includes:
driving the liquid crystal display module to be adjusted by using the testing gamma parameter and displaying a picture with the gray scale of 0, m and 255, wherein m is more than 0 and less than 255;
the LCD module to be adjusted is not limited to display only the image with gray scale of 0, m, 255, for example, the LCD module to be adjusted can be driven by testing gamma parameters and displaying the image with gray scale of 0, m1，m2When the image is 255, the liquid crystal display module to be adjusted can be driven by the testing gamma parameter and displays the gray scale of 0 m1，m2……mnPicture at 255, m1And mnThe values are all numerical values which are more than 0 and less than 255, n can be any integer value which is more than 2 and less than 255, and the liquid crystal display module to be adjusted can display a plurality of pictures with different gray scales according to the requirements on the gamma adjusting speed and the gamma adjusting precision. The more the number of different gray scale pictures displayed by the liquid crystal display module to be adjusted is, namely the larger n is, the slower the gamma adjustment speed is and the higher the precision is.
Step S104 includes:
when the LCD module to be adjusted displays pictures with gray scales of 0, m and 255, and the actually measured transmittance is within the transmittance control range, the testing gamma parameters are stored in the integrated circuit of the LCD module to be adjusted.
Therefore, when the adjusted liquid crystal display module is driven to display each gray scale picture by using the test gamma parameters stored in the integrated circuit, the transmittance is within the transmittance control range.
In an eighth embodiment of the present invention based on the first embodiment of the present invention, step S105 includes:
acquiring the actual measurement brightness of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
and converting the measured brightness into a measured transmittance.
So, the accessible detects the actual measurement luminance of treating the adjustment liquid crystal display module assembly and obtains the actual measurement transmissivity of treating the adjustment liquid crystal display module assembly, helps promoting gamma adjustment efficiency.
In addition, in order to achieve the above object, the present invention further provides a gamma adjusting apparatus, which includes a processor 12, a memory 14, and a gamma adjusting program stored on the memory 14 and executable by the processor, wherein when the gamma adjusting program is executed by the processor 14, the steps of the gamma adjusting method according to any of the above embodiments are implemented.
The gamma adjusting apparatus further includes a testing board 16 and a brightness detecting module 18. The processor 12 can control the testing board 16 to perform steps S104, S105, S107 and S113, that is, steps S104, S105, S107 and S113 can be realized by the testing board 16. The brightness detection module 18 is used for detecting the actually measured brightness of the liquid crystal display module, and the test board 16 can obtain the actually measured brightness from the brightness detection module.
The specific embodiment of the gamma adjusting device of the present invention is substantially the same as the embodiments of the gamma adjusting method, and will not be described herein again.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium, on which a gamma adjustment program is stored, wherein when the gamma adjustment program is executed by a processor, the steps of the gamma adjustment method of any of the above embodiments are implemented.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the application software security vulnerability detection method, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A method of gamma adjustment, comprising the steps of:
acquiring a gamma control range, and converting the gamma control range into a transmittance control range;
acquiring a reference gamma parameter and a standard gamma parameter corresponding to the model of the liquid crystal display module to be adjusted from a gamma database;
setting the reference gamma parameter as a test gamma parameter;
driving the liquid crystal display module to be adjusted by using the test gamma parameter;
acquiring the actually measured transmittance of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
judging whether the actually measured transmittance is within the transmittance control range;
when the actually measured transmittance is within the transmittance control range, storing the test gamma parameter into an integrated circuit of the liquid crystal display module to be adjusted;
when the actually measured transmittance is not within the transmittance control range, one standard gamma parameter is selected from the plurality of standard gamma parameters in sequence to be set as a test gamma parameter, and the step is returned: driving the liquid crystal display module to be adjusted by using the test gamma parameter until the actually measured transmittance is within the transmittance control range;
before the step of obtaining the reference gamma parameter and the standard gamma parameter corresponding to the model of the liquid crystal display module to be adjusted from the gamma database, the gamma adjusting method further comprises the following steps:
obtaining a plurality of gamma subarea interval ranges, and converting the gamma subarea interval ranges into a plurality of transmittance subarea interval ranges;
acquiring a reference gamma parameter, and driving a plurality of sampling liquid crystal display modules with the same model by the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules;
setting the sampling liquid crystal display module of which the transmittance falls in the central area of each transmittance subarea interval range in the plurality of sampling liquid crystal display modules as a sample liquid crystal display module;
adjusting configuration parameters for driving the sample liquid crystal display modules to enable the transmittance of each sample liquid crystal display module to fall into the transmittance control range;
setting configuration parameters used when the transmittance of each sample liquid crystal display module falls into the transmittance control range as the standard gamma parameters corresponding to the model and storing the standard gamma parameters into the gamma database;
before the step of obtaining the reference gamma parameter and driving the plurality of sampling liquid crystal display modules of the same model by the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules, the gamma adjusting method further comprises the steps of:
driving one sampling liquid crystal display module according to any configuration parameter;
adjusting the configuration parameters to enable the transmittance of the sampling liquid crystal display module to fall within the transmittance control range;
and setting the configuration parameters of the sampling liquid crystal display module when the transmittance falls within the transmittance control range as the reference gamma parameters, and storing the reference gamma parameters in the gamma database.
2. The gamma adjustment method of claim 1, wherein before the step of obtaining the reference gamma parameter and driving a plurality of sampling liquid crystal display modules of the same model with the reference gamma parameter to measure the transmittance of the plurality of sampling liquid crystal display modules, the gamma adjustment method further comprises the steps of:
controlling one sampling liquid crystal display module to respectively display 0-n gray scale pictures, wherein n is the maximum gray scale number which can be supported by the liquid crystal display module to be adjusted;
respectively acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures;
when the sampling liquid crystal respectively displays each module to display 0-n gray scale pictures, adjusting configuration parameters, and re-acquiring the transmittance corresponding to each gray scale when the sampling liquid crystal display module displays 0-n gray scale pictures until the transmittance of the sampling liquid crystal display module falls into the transmittance control range;
and setting the configuration parameters used when the transmittance of the sampling liquid crystal display module falls into the transmittance control range as the reference gamma parameters and storing the reference gamma parameters into the gamma database.
3. The gamma adjustment method of claim 1, wherein the gamma adjustment method further comprises the steps of:
associating each standard gamma parameter with a transmittance partition interval range where the transmittance of the sample liquid crystal display module corresponding to the obtained standard gamma parameter is located, and storing the standard gamma parameter and the transmittance partition interval range to the gamma database;
the step of sequentially selecting one standard gamma parameter from the plurality of gamma standard parameters to be set as a test gamma parameter comprises the following steps:
judging whether the actually measured transmittance of the liquid crystal display module to be adjusted falls within one of the transmittance subarea interval ranges;
when the actually measured transmittance of the liquid crystal display module to be adjusted is within one transmittance subarea interval range, sequentially setting standard gamma parameters corresponding to the transmittance subarea interval range as test gamma parameters from near to far according to the transmittance subarea interval range where the actually measured transmittance is;
the gamma adjustment method further includes the steps of:
when the actually measured transmittance of the liquid crystal display module to be adjusted does not fall within one of the transmittance partition interval ranges, adjusting configuration parameters to enable the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range, setting the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range as standard gamma parameters, and storing the standard gamma parameters into the gamma database.
4. The gamma adjustment method of claim 3, wherein the gamma adjustment method further comprises the steps of:
when the actually measured transmittance is not within the transmittance control range, judging whether all the standard gamma parameters are set as test gamma parameters respectively;
when all the standard gamma parameters are not set as the test gamma parameters respectively, executing the following steps: judging whether the actually measured transmittance of the liquid crystal display module to be adjusted falls within one of the transmittance subarea interval ranges;
when all the standard gamma parameters have been set as test gamma parameters, respectively, performing the steps of: and adjusting configuration parameters to enable the actually measured transmittance of the liquid crystal display module to be adjusted to fall within the transmittance control range, setting the configuration parameters used when the actually measured transmittance of the liquid crystal display module to be adjusted falls within the transmittance control range as standard gamma parameters, and storing the standard gamma parameters into the gamma database.
5. The gamma adjustment method of claim 1, wherein the step of driving the LCD module to be adjusted using the test gamma parameters comprises:
driving the liquid crystal display module to be adjusted by using the test gamma parameter and displaying a picture with the gray scale of 0, m and 255, wherein m is more than 0 and less than 255;
when the actually measured transmittance is within the transmittance control range, the step of storing the test gamma parameter into the integrated circuit of the liquid crystal display module to be adjusted comprises:
and when the to-be-adjusted liquid crystal display module displays a picture with gray scales of 0, m and 255 and the actually-measured transmittance is within the transmittance control range, storing the test gamma parameter into the integrated circuit of the to-be-adjusted liquid crystal display module.
6. The gamma adjustment method of claim 1, wherein the step of obtaining the measured transmittance of the LCD module to be adjusted when the LCD module to be adjusted is driven by the test gamma parameter comprises:
acquiring the actual measurement brightness of the liquid crystal display module to be adjusted when the liquid crystal display module to be adjusted is driven by the test gamma parameter;
and converting the measured brightness into the measured transmittance.
7. A gamma adjustment device comprising a processor, a memory, and a gamma adjustment program stored on the memory and executable by the processor, wherein the gamma adjustment program when executed by the processor implements the steps of the gamma adjustment method of any one of claims 1 to 6.
8. A computer-readable storage medium having a gamma adjustment program stored thereon, wherein the gamma adjustment program, when executed by a processor, implements the steps of the gamma adjustment method of any one of claims 1 to 6.
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| CN110534070A (en) * | 2019-08-30 | 2019-12-03 | 联想(北京)有限公司 | Control method, data library generating method and control device |
| CN111128077B (en) * | 2020-01-15 | 2021-09-24 | 京东方科技集团股份有限公司 | Gamma debugging method and device, gamma debugging equipment and medium |
| CN114170975B (en) * | 2021-12-08 | 2023-05-30 | Tcl华星光电技术有限公司 | Display brightness adjusting method and device, display device and storage medium |
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| CN103310752B (en) * | 2013-06-05 | 2015-07-22 | 合肥京东方光电科技有限公司 | Gamma voltage adjusting method and gamma voltage adjusting system |
| CN103325357B (en) * | 2013-07-05 | 2016-04-13 | 合肥京东方光电科技有限公司 | A kind of gamma voltage method of adjustment, system and electronic equipment |
| KR102315653B1 (en) * | 2015-08-18 | 2021-10-22 | 삼성디스플레이 주식회사 | Gamma voltage generator and display device having the same |
| US10147370B2 (en) * | 2015-10-29 | 2018-12-04 | Nvidia Corporation | Variable refresh rate gamma correction |
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