CN113988664A - Discharging screening and guiding system of LCD (liquid crystal display) - Google Patents

Discharging screening and guiding system of LCD (liquid crystal display) Download PDF

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CN113988664A
CN113988664A CN202111285249.8A CN202111285249A CN113988664A CN 113988664 A CN113988664 A CN 113988664A CN 202111285249 A CN202111285249 A CN 202111285249A CN 113988664 A CN113988664 A CN 113988664A
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王奎
贺冬
丁敦才
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Abstract

The invention discloses the technical field of LCD (liquid crystal display), which is used for solving the problems that the existing modes of inspecting and screening the discharging quality of the LCD still stay in a semi-automatic mode, the discharging efficiency is low, and screening errors and discharging paths are easy to be undefined; the invention primarily screens the quality of the LCD through signal calibration, formulaic processing and magnitude discrimination, then verifies and corrects the fuzzy signal and the uncertain signal to generate different path signals for discharging guidance output, optimizes the working efficiency of the LCD inspection and screening, effectively monitors the discharging quality and realizes the effect of integrated discharging screening guidance of the LCD.

Description

Discharging screening and guiding system of LCD (liquid crystal display)
Technical Field
The invention relates to the technical field of LCD (liquid crystal display), in particular to a discharging screening guidance system of an LCD.
Background
The LCD is a flat thin display device, the LCD has low power consumption and wide application range, and the application of the LCD cannot be separated in transportation, entertainment places, education institutions and the like, so the control of delivery quality inspection of the LCD is very important, but the existing inspection and screening modes for the discharge quality of the LCD still stay in semi-automation, the manual visual inspection and screening accounts for higher ratio, so that the discharge efficiency of the LCD is low, screening errors easily exist, and an efficient discharge guide plan is difficult to form;
in order to solve the above-mentioned drawbacks, a technical solution is now provided.
Disclosure of Invention
The invention aims to provide a discharging screening guide system of an LCD (liquid crystal display) screen, aiming at solving the problems that the existing modes of inspecting and screening the discharging quality of the LCD screen are still in a semi-automatic mode, the discharging efficiency is low, screening errors are easy to occur and a discharging path is not clear.
The purpose of the invention can be realized by the following technical scheme:
the discharging screening and guiding system of the LCD comprises a data acquisition module, a pre-judging analysis module, a magnitude judging module, an inspection and correction module, a discharging guiding module, a data statistics module and a display terminal;
the data acquisition module is used for acquiring basic data and appearance data of each LCD (liquid crystal display) screen of the discharging point and sending the basic data and the appearance data to the prejudgment analysis module;
the pre-judging analysis module is used for carrying out data primary judging analysis operation on the acquired basic data and the acquired appearance data of each LCD screen and obtaining a first primary judging value A according to the data primary judging analysis operationiSecond initial judgment value BiAnd the quality evaluation value P is added, the quality evaluation value P is sent to the magnitude discrimination module, and the first initial discrimination value A is obtainediAnd a second initial judgment value BiSending the data to a checking and correcting module;
the magnitude discrimination module is used for carrying out magnitude discrimination analysis operation on the received quality evaluation value P and a preset range K' of the quality evaluation value P, obtaining a positive signal, a fuzzy signal and an indeterminate signal according to the magnitude discrimination analysis operation, sending the positive signal to the discharging guide module, and sending the fuzzy signal and the indeterminate signal to the inspection correction module;
the inspection and correction module is used for distinguishing and correcting the acquired fuzzy signal and the LCD liquid crystal display screen of the undetermined signal, and comprises the following specific operation steps:
xz 1: when receiving the fuzzy signal or the non-definite signal, the first initial judgment value A obtained by the pre-judgment analysis module is called according to the fuzzy signal or the non-definite signaliAnd a second initial judgment value Bi；
Xz 2: the first predetermined value A is comparediAnd a second predetermined value BiRespectively corresponding preset ranges K1And K2Carrying out comparison analysis operation, and obtaining a basic level signal and an appearance level signal according to the comparison analysis operation;
xz 3: carrying out set calibration processing on the basic level signal and the appearance level signal to obtain an A + signal or an A-signal or an A + -signal, and sending the A + signal or the A-signal to a discharging guide module;
the discharging guide module is used for performing discharging guide operation on the received positive signals, A + signals, A-signals and A + -signals, so as to generate outgoing path guide signals, returning path guide signals and path guide signals to be detected, and send the outgoing path guide signals, the returning path guide signals and the path guide signals to be detected to the data statistics module;
the data statistics module is used for counting the discharging condition of the LCD in unit time, and sending the discharging condition to the display terminal in a chart and text mode for the reference of workers.
Further, the basic data and the appearance data are subjected to data primary judgment analysis operation, and the specific operation steps are as follows:
s1: acquiring basic data of each LCD (liquid Crystal display) screen of a discharging point in unit time in real time, wherein the basic data comprises an environment standard value, a curvature, a size and a power consumption rate, and respectively marking the basic data as Li、Qi、CiAnd HiThe environment standard value, the curvature, the size and the power consumption rate are quantized to extract the environment standard value, the curvature and the sizeAnd the numerical value of the power consumption rate is substituted into the formula according to the formula
Figure BDA0003332628910000031
Obtaining a first pre-determined value A of each LCD screen in unit timeiWherein a is1、a2、a3And a4Respectively an environmental standard value LiDegree of curvature QiDimension CiAnd rate of consumption HiA coefficient of a discriminant factor of4＞a3＞a1＞a2＞0；
S2: the method comprises the steps of acquiring appearance data of each LCD (liquid Crystal display) screen of a discharging point in unit time in real time, wherein the appearance data comprise bad points, color resolution and softness rate, and respectively marking the appearance data as Vi、ZiAnd UiThe bad point number, the color resolution and the soft rate are quantized, the numerical values of the bad point number, the color resolution and the soft rate are extracted and substituted into a formula according to the formula
Figure BDA0003332628910000032
Obtaining a second pre-judgment value B of each LCD liquid crystal display screen in unit timeiWherein b is1、b2And b3Respectively the number of bad points ViColor resolution ZiAnd softness ratio UiOf error factor of, and b1＞b2＞b3＞0；
S3: the first pre-judgment value and the second pre-judgment value are subjected to quantization processing, numerical values of the first pre-judgment value and the second pre-judgment value are extracted and substituted into a formula, and the formula is followed
Figure BDA0003332628910000033
Obtaining a quality estimation value P of the LCD display screen in unit time, wherein P1And p2Are respectively the first predetermined value AiAnd a second predetermined value BiCoefficient of correction factor of, and p2＞p1＞0。
Further, the quality safety value P and the preset range K' are subjected to discriminant analysis operation, and the specific operation steps are as follows:
when the quality safety value P is greater than the maximum value of the preset range K ', an affirmative signal is generated, when the quality safety value P is between the preset ranges K ', a fuzzy signal is generated, and when the quality safety value P is less than the minimum value of the preset range K ', an indeterminate signal is generated.
Further, the specific operation steps of the comparison analysis operation are as follows:
bd 1: the first predetermined value A is comparediWith a preset value K1Comparing the first predetermined value AiGreater than or equal to a preset value K1When the first predetermined value A is smaller than the first predetermined value A, a performance priority signal is generatediLess than a predetermined value K1Generating a performance deficiency signal, and calibrating a performance superior signal and the performance deficiency signal into a basic level signal;
bd 2: the second prejudged value BiWith a preset value K2Comparing the two values to obtain a second predetermined value BiGreater than a predetermined value K2When the second predetermined value B is smaller than the first predetermined value B, generating an appearance lack signaliLess than or equal to a preset value K2Generating an appearance priority signal, and calibrating the appearance lack signal and the appearance priority signal into an appearance level signal;
bd 3: and carrying out set calibration processing on the generated base level signal and appearance level signal.
Further, the specific operation steps of the set calibration processing are as follows:
and performing set cross processing on the basic level signal and the appearance level signal, calibrating the basic level signal and the appearance level signal as an A + signal when the performance premium signal and the appearance premium signal are acquired simultaneously, calibrating the basic level signal and the appearance premium signal as an A-signal when the performance deficiency signal and the appearance deficiency signal are acquired simultaneously, calibrating other cross conditions as an A + -signal, and sending the A + signal, the A-signal and the A + -signal obtained after the set cross processing to the discharging guide module.
Further, the specific operation steps of the discharging guide operation are as follows:
when receiving the positive signal and the A + signal, generating a factory route guide signal, when receiving the A-signal, generating a factory return route guide signal, and when receiving the A + signal, generating a path guide signal to be detected.
Compared with the prior art, the invention has the beneficial effects that:
1. through signal calibration, formulaic calculation processing and magnitude discrimination analysis operation, a guide signal for discriminating the quality of the LCD is quickly obtained, a qualified LCD is preliminarily and quickly screened out, and the delivery path guide signal is output, so that the screening efficiency is improved and the error rate is reduced while the discharge quality of the LCD is quickly inspected and screened;
2. the method comprises the steps of verifying and correcting the LCD liquid crystal display screen containing fuzzy signals and uncertain signals obtained in magnitude discrimination analysis operation, further verifying and correcting the fuzzy signals and the uncertain signals through processing operations such as parameter calling, numerical value comparison, signal calibration and set calibration, re-calibrating the discharge guide signals of the corrected LCD liquid crystal display screen, guiding and outputting the discharge of the LCD liquid crystal display screen according to different path signals, effectively monitoring and correcting the quality of the discharge of the LCD liquid crystal display screen, improving the work efficiency of inspection and screening of the LCD liquid crystal display screen, and achieving the effect of discharge screening and guide of the integrated LCD liquid crystal display screen.
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In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
FIG. 1 is a general block diagram of the system of the present invention;
FIG. 2 is a block diagram of a processing path according to a first embodiment of the present invention;
fig. 3 is a processing path block diagram according to a second embodiment of the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only 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.
The first embodiment is as follows:
as shown in fig. 1 and 2, the discharging screening and guiding system of the LCD includes a data acquisition module, a pre-judging analysis module, a magnitude discrimination module, an inspection and correction module, a discharging guiding module, a data statistics module, and a display terminal;
the data acquisition module is used for acquiring basic data and appearance data of each LCD (liquid crystal display) screen of the discharging point and sending the basic data and the appearance data to the prejudgment analysis module, wherein the basic data is used for representing basic performance data of the LCD screens, the larger the expression value of the basic data is, the better the performance of the LCD screens can be highlighted, the appearance data is used for representing fault data of the LCD screens, and the smaller the expression value of the appearance data is, the fewer faults exist in the LCD screens are represented;
the prejudgment analysis module is used for carrying out data primary judgment analysis operation on the acquired basic data and the acquired appearance data of each LCD screen, and the specific primary judgment analysis operation is as follows:
s1: acquiring basic data of each LCD (liquid Crystal display) screen of a discharging point in unit time in real time, wherein the basic data comprises an environment standard value, a curvature, a size and a power consumption rate, and respectively marking the basic data as Li、Qi、CiAnd HiThe environment standard value, the curvature, the size and the power consumption rate are quantized, numerical values of the environment standard value, the curvature, the size and the power consumption rate are extracted and substituted into a formula, and the numerical values are calculated according to the formula
Figure BDA0003332628910000061
Obtaining a first pre-determined value A of each LCD screen in unit timeiWherein a is1、a2、a3And a4Respectively an environmental standard value LiDegree of curvature QiDimension CiAnd rate of consumption HiA coefficient of a discriminant factor of4＞a3＞a1＞a2＞0，a1+a2+a3+a4＝4.263；
The LCD liquid crystal display screen with qualified quality can be output preferentially by the prejudgment analysis module, the LCD liquid crystal display screen with quality doubt is screened and guided, unit time represents the time period of one day, and the discrimination factor coefficient is convenient for the environment standard value LiDegree of curvature QiDimension CiAnd rate of consumption HiThe first pre-judging value A is obtained by calculationiAnd passes through the first predetermined value AiThe performance of the LCD is pre-judged according to the performance value of the LCD, and when the first pre-judged value A is obtainediThe larger the size, the better the performance of the LCD screen;
it should be noted that the environment index value LiConversion parameter value, environment standard value L for representing LCD liquid crystal display screen application environmentiThe larger the expression value of (A), the better, and the environmental standard value LiIncluding brightness and temperature width, and are respectively designated as LdiAnd WkiThe brightness and the temperature width are quantized, the numerical values of the brightness and the temperature width are extracted and substituted into a formula according to the formula
Figure BDA0003332628910000062
Obtaining the environmental standard value L of LCDiWherein e is1And e2Conversion factor coefficients of brightness and temperature width, respectively, and e1＞e2＞0，e1+e21.3, the brightness is used for reflecting the definition of the LCD screen, and the temperature width represents the size of the range of the environment temperature which can be adapted to the LCD screen;
and degree of curvature QiFor indicating the degree of curvature of the panel of an LCD panel, dimension CiIncluding size, weight, and power consumption rate H of LCDiUsed for measuring the power consumption condition and the power consumption rate H of the LCDiThe higher the expression value is, the larger the power consumption of the LCD screen is;
s2: the method comprises the steps of acquiring appearance data of each LCD (liquid crystal display) screen of a discharging point in unit time in real time, wherein the appearance data comprises dead pixelsNumber, color resolution and softness ratio, and are respectively designated as Vi、ZiAnd UiThe bad point number, the color resolution and the soft rate are quantized, the numerical values of the bad point number, the color resolution and the soft rate are extracted and substituted into a formula according to the formula
Figure BDA0003332628910000071
Obtaining a second pre-judgment value B of each LCD liquid crystal display screen in unit timeiWherein b is1、b2And b3Respectively the number of bad points ViColor resolution ZiAnd softness ratio UiOf error factor of, and b1＞b2＞b3＞0，b1+b2+b35.7, wherein the error factor coefficient is used to reduce the number of bad points ViColor resolution ZiAnd softness ratio UiWith calculated error, second predetermined value BiUsed for measuring the value of the appearance fault of the LCD when the second pre-judging value BiThe more zero, the higher the integrity of the appearance of the LCD screen is;
note that the number of bad points ViThe pixel for showing that the LCD display screen is continuously bright and does not receive the extinguishing signal is in the number V of the bad pointsiThe larger the expression value is, the more bad points exist in the LCD screen, and the color resolution Z isiFor indicating the precision of the LCD display image, as the color resolution ZiThe higher the expression value is, the finer the image is displayed, and the softness ratio U isiFor showing softness and softness rate U of display picture of LCDiThe higher the display quality, the better the display effect of the LCD screen;
s3: the first pre-judgment value and the second pre-judgment value are subjected to quantization processing, numerical values of the first pre-judgment value and the second pre-judgment value are extracted and substituted into a formula, and the formula is followed
Figure BDA0003332628910000072
To LCD liquid crystal display screen in unit timeIs measured, wherein P1And p2Are respectively the first predetermined value AiAnd a second predetermined value BiCoefficient of correction factor of, and p2＞p1＞0，p1+p24.19, it should be noted that the quality assessment value P is used for measuring and evaluating the qualification value of the discharge of the LCD liquid crystal display, the performance value of the quality assessment value P is in direct proportion to the quality rating of the LCD liquid crystal display, i.e. the higher the performance value of the quality assessment value P is, the higher the quality rating of the LCD liquid crystal display is, the correction factor coefficient is used for calculating the first pre-judgment value a in the process of calculationiAnd a second predetermined value BiThe numerical value of the quality evaluation value P is corrected, so that the accuracy of the quality evaluation value P is further improved;
s4: sending the obtained quality evaluation value P to a magnitude discrimination module;
the magnitude discrimination module is used for performing magnitude discrimination analysis operation on the received quality assessment value P and a preset range K' thereof, and comprises the following specific operation steps:
when the quality safety value P is larger than the maximum value of the preset range K ', a positive signal is generated, when the quality safety value P is between the preset ranges K ', a fuzzy signal is generated, when the quality safety value P is smaller than the minimum value of the preset range K ', an indeterminate signal is generated, and the generated positive signal is sent to the discharging guide module;
it should be noted that the positive signal indicates that the quality of the LCD is qualified and meets the operation signal for performing subsequent discharging, and the fuzzy signal indicates that the quality of the LCD may be in a problem or may not be in a problem, so that a further screening process is required, while the non-fixed signal indicates that the quality of the LCD is not qualified, but still needs to be performed;
the discharging guide module is used for performing discharging guide operation on the received positive signal, and the specific operation steps are as follows: when the positive signal is received, generating a factory path guide signal according to the factory path guide signal, and guiding the LCD to carry out discharging operation, so as to realize quick discharging guide of the LCD, wherein the factory path guide signal represents a path signal for guiding quick discharging of the LCD with the quality up to the standard;
the data statistics module is used for carrying out statistics and description on outgoing path guide semaphore, returning path guide semaphore and the number of times of the path guide semaphore to be detected of a plurality of LCD liquid crystal display screens in unit time, and sending the statistics and description to the display terminal in a chart and text mode for the reference of workers;
it should be noted that, the chart mode may count the outgoing path guidance semaphore, the returning path guidance semaphore, and the path guidance semaphore to be detected in unit time through a bar-shaped statistical chart and a pie chart, and analyze and obtain a quality assessment text of the LCD liquid crystal display in unit time through the ratio of the outgoing path guidance semaphore, the returning path guidance semaphore, and the path guidance semaphore to be detected, and generate text patterns such as "the outgoing plan of the LCD liquid crystal display is better in specified time", "the outgoing plan of the LCD liquid crystal display is general in specified time", and "the outgoing plan of the LCD liquid crystal display is worse in specified time";
acquiring basic data and appearance data of each LCD (liquid Crystal display) screen of a discharging point through a data acquisition module, and obtaining a first initial judgment value A for measuring the performance of the LCD screen through signal calibration and formulaic calculation processingiAnd a second predetermined value B for evaluating the integrity of the appearance of the LCDiAnd the quality evaluation value P for evaluating the qualified discharge quality of the LCD is carried out, the quality evaluation value P and the preset range K' are subjected to magnitude order discriminant analysis operation, qualified LCD is preliminarily and quickly screened out, the outgoing path guide signal is output, the output signal is subjected to statistical analysis, the screening efficiency is improved while the quick inspection and screening of the discharge quality of the LCD are realized, and the error rate is reduced.
Example two:
as shown in fig. 1 and fig. 3, after the magnitude discrimination module performs the magnitude discrimination analysis operation on the quality evaluation value P and the preset range K', when a fuzzy signal and an indeterminate signal are generated, the fuzzy signal and the indeterminate signal are sent to the inspection and correction module, and it should be noted that the inspection and correction module is configured to perform the re-verification and correction operation on the indeterminate signal generated after the magnitude discrimination;
the inspection and correction module is used for judging and correcting the quality of the acquired fuzzy signal and uncertain signal LCD, and comprises the following specific operation steps:
xz 1: when receiving the fuzzy signal or the non-definite signal, the first initial judgment value A obtained in the pre-judgment analysis module is called according to the fuzzy signal or the non-definite signaliAnd a second initial judgment value Bi；
Xz 2: the first predetermined value A is comparediAnd a second predetermined value BiRespectively corresponding preset ranges K1And K2Performing comparison analysis operation, wherein the specific operation steps are as follows:
bd 1: the first predetermined value A is comparediWith a preset value K1Comparing the first predetermined value AiGreater than or equal to a preset value K1When the first predetermined value A is smaller than the first predetermined value A, a performance priority signal is generatediLess than a predetermined value K1Generating a performance deficiency signal, and calibrating a performance superior signal and the performance deficiency signal into a basic level signal;
bd 2: the second prejudged value BiWith a preset value K2Comparing the two values to obtain a second predetermined value BiGreater than a predetermined value K2When the second predetermined value B is smaller than the first predetermined value B, generating an appearance lack signaliLess than or equal to a preset value K2Generating an appearance priority signal, and calibrating the appearance lack signal and the appearance priority signal into an appearance level signal;
bd 3: the method comprises the following steps of carrying out set calibration processing on the generated base level signal and appearance level signal, and specifically comprising the following operation steps:
when a performance superior signal and an appearance superior signal are simultaneously obtained, the signals are marked as A + signals, when a performance deficient signal and an appearance deficient signal are simultaneously obtained, the signals are marked as A-signals, and other cross conditions are marked as A + signals;
it should be noted that: the A + signal, the A-signal and the A + -signal belong to auxiliary judgment signals, the auxiliary judgment signals are used for carrying out auxiliary judgment on quality evaluation of the LCD, specifically, the A + signal is used for indicating that the LCD is qualified in quality, the A-signal is used for indicating that the LCD is unqualified in quality, and the A + -signal is used for indicating that the quality of the LCD needs deeper detection;
xz 3: sending the A + signal or the A-signal or the A + -signal to a discharging guide module;
the discharging guide module performs discharging guide operation according to the received A + signal, A-signal and A + -signal, and the specific operation steps are as follows:
generating a factory route guide signal when an A + signal is received, generating a factory route guide signal when an A-signal is received, and generating a to-be-detected route guide signal when an A + -signal is received;
the LCD liquid crystal display screen which is obtained by the judgment of the magnitude discrimination module and contains the fuzzy signal and the indeterminate signal is verified and corrected, and the pre-discrimination analysis module is called to obtain a first initial discrimination value AiAnd a second initial judgment value BiAnd further verifying and correcting suspicious fuzzy signals and uncertain signals through numerical value comparison, signal calibration and set calibration processing, judging A + signals, A-signals and A + -signals through assistance, calibrating discharging guide operation signals of the corrected LCD, discharging guide output the LCD according to different path signals, and performing statistical analysis on output signals of the LCD, thereby effectively monitoring the discharging quality of the LCD, improving the working efficiency of the LCD inspection and screening, and realizing the effect of discharging screening guide of the integrated LCD.
Example three:
as shown in fig. 1, the basic data and the appearance data of each LCD liquid crystal display screen of a material point are collected by a data collection module and sent to a pre-judgment analysis module;
the pre-judging analysis module carries out data primary judging analysis operation on the acquired basic data and the acquired appearance data of each LCD screen, and obtains a first primary judging value A according to the data primary judging operationiSecond initial judgmentValue BiAnd the quality evaluation value P is added, the quality evaluation value P is sent to the magnitude discrimination module, and the first initial discrimination value A is obtainediAnd a second initial judgment value BiSending the data to a checking and correcting module;
the magnitude discrimination module is used for carrying out magnitude discrimination analysis operation on the received quality evaluation value P and a preset range K' of the quality evaluation value P, obtaining a positive signal, a fuzzy signal and an indeterminate signal according to the magnitude discrimination analysis operation, sending the positive signal to the discharging guide module, and sending the fuzzy signal and the indeterminate signal to the inspection correction module;
the inspection and correction module is used for distinguishing and correcting the acquired fuzzy signal and the LCD of the uncertain signal, and comprises the following specific operation steps:
xz 1: when receiving the fuzzy signal or the non-definite signal, the first initial judgment value A obtained by the pre-judgment analysis module is called according to the fuzzy signal or the non-definite signaliAnd a second initial judgment value Bi；
Xz 2: the first predetermined value A is comparediAnd a second predetermined value BiRespectively corresponding preset ranges K1And K2Carrying out comparison analysis operation, and obtaining a basic level signal and an appearance level signal according to the comparison analysis operation;
xz 3: carrying out set calibration processing on the basic level signal and the appearance level signal to obtain an A + signal or an A-signal or an A + -signal, and sending the A + signal or the A-signal to a discharging guide module;
the discharging guide module is used for performing discharging guide operation on the received positive signals, A + signals, A-signals and A + -signals, so as to generate outgoing path guide signals, returning path guide signals and path guide signals to be detected, and sending the outgoing path guide signals, the returning path guide signals and the path guide signals to be detected to the data statistics module;
the data statistics module is used for counting the discharging condition of the LCD screen in unit time, and sending the discharging condition to the display terminal in a chart and text mode for the reference of workers;
firstly, acquiring basic data and appearance data of an LCD (liquid crystal display), carrying out initial judgment analysis operation, obtaining a pre-judgment value for each level quality evaluation of the LCD by adopting numerical value calibration and formulaic calculation, further carrying out magnitude discrimination analysis processing on the pre-judgment value for each level quality evaluation, directly sending the LCD of a positive signal obtained by magnitude processing to a discharging guide module for discharging operation, sending a fuzzy signal obtained by magnitude processing and the LCD of an uncertain signal to a checking and correcting module for further verifying and correcting operation, further verifying the LCD by auxiliary judgment of an A + signal, an A-signal and an A + -signal, calibrating the corrected LCD by a discharging guide operation signal, and carrying out discharging guide output on the LCD according to different path signals, and carry out statistical analysis with its output signal, when the quality of the ejection of compact of realization to LCD liquid crystal display carries out effective monitoring to optimize the work efficiency to LCD liquid crystal display inspection, screening, realized the effect that the ejection of compact screening of integrated LCD liquid crystal display guided.
The above formulas are obtained by collecting a large amount of data and performing software simulation, and the coefficients in the formulas are set by those skilled in the art according to actual conditions.
When the invention is used, the basic data and the appearance data of each LCD screen at the discharging point are collected by the data collecting module, and then the first initial judgment value A for measuring the performance of the LCD screen is obtained by signal calibration and formulaic calculation processingiAnd a second predetermined value B for evaluating the integrity of the appearance of the LCDiThe quality evaluation value P for evaluating the qualified discharge quality of the LCD is used, magnitude discrimination analysis operation is carried out on the quality evaluation value P and a preset range K', the qualified LCD is preliminarily and quickly screened out, outgoing path guide signals are output, statistical analysis is carried out on output signals of the qualified LCD, the screening efficiency is improved and the error rate is reduced while quick inspection and screening of the discharge quality of the LCD are realized;
the LCD liquid crystal display screen which is obtained by the judgment of the magnitude discrimination module and contains the fuzzy signal and the indeterminate signal is verified and corrected, and the pre-discrimination analysis module is called to obtain a first initial discrimination value AiAnd a firstSecond initial judgment value BiAnd further verifying and correcting suspicious fuzzy signals and uncertain signals through numerical value comparison, signal calibration and set calibration processing, judging A + signals, A-signals and A + -signals through assistance, calibrating discharging guide operation signals of the corrected LCD, discharging guide output the LCD according to different path signals, and performing statistical analysis on output signals of the LCD, thereby effectively monitoring the discharging quality of the LCD, improving the working efficiency of the LCD inspection and screening, and realizing the effect of discharging screening guide of the integrated LCD.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

  1. The discharging screening and guiding system of the LCD is characterized by comprising a data acquisition module, a prejudgment analysis module, a magnitude discrimination module, an inspection and correction module, a discharging guiding module, a data statistics module and a display terminal;
    the data acquisition module is used for acquiring basic data and appearance data of each LCD (liquid crystal display) screen of the discharging point and sending the basic data and the appearance data to the prejudgment analysis module;
    the pre-judging analysis module is used for carrying out data primary judging analysis operation on the acquired basic data and the acquired appearance data of each LCD screen and obtaining a first primary judging value A according to the data primary judging analysis operationiSecond initial judgment value BiAnd the quality evaluation value P is added, the quality evaluation value P is sent to the magnitude discrimination module, and the first initial discrimination value A is obtainediAnd a second initial judgment value BiSent to inspection and correctionA module;
    the magnitude discrimination module is used for carrying out magnitude discrimination analysis operation on the received quality evaluation value P and a preset range K' of the quality evaluation value P, obtaining a positive signal, a fuzzy signal and an indeterminate signal according to the magnitude discrimination analysis operation, sending the positive signal to the discharging guide module, and sending the fuzzy signal and the indeterminate signal to the inspection correction module;
    the inspection and correction module is used for distinguishing and correcting the acquired fuzzy signal and the LCD liquid crystal display screen of the undetermined signal, and comprises the following specific operation steps:
    xz 1: when receiving the fuzzy signal or the non-definite signal, the first initial judgment value A obtained by the pre-judgment analysis module is called according to the fuzzy signal or the non-definite signaliAnd a second initial judgment value Bi；
    Xz 2: the first predetermined value A is comparediAnd a second predetermined value BiRespectively corresponding preset ranges K1And K2Carrying out comparison analysis operation, and obtaining a basic level signal and an appearance level signal according to the comparison analysis operation;
    xz 3: carrying out set calibration processing on the basic level signal and the appearance level signal to obtain an A + signal or an A-signal or an A + -signal, and sending the A + signal or the A-signal to a discharging guide module;
    the discharging guide module is used for performing discharging guide operation on the received positive signals, A + signals, A-signals and A + -signals, so as to generate outgoing path guide signals, returning path guide signals and path guide signals to be detected, and send the outgoing path guide signals, the returning path guide signals and the path guide signals to be detected to the data statistics module;
    the data statistics module is used for counting the discharging condition of the LCD in unit time, and sending the discharging condition to the display terminal in a chart and text mode for the reference of workers.
  2. 2. The discharge screening guidance system for LCD LCDs as defined in claim 1, wherein the specific operation steps of performing the preliminary data analysis operation on the basic data and the appearance data are as follows:
    s1: acquiring basic data of each LCD screen at a discharging point in unit time in real time, wherein the basic data comprises an environment standard value,Straightness, size and specific power consumption, and are designated as Li、Qi、CiAnd HiAccording to the formula
    Figure FDA0003332628900000021
    Obtaining a first pre-determined value A of each LCD screen in unit timeiWherein a is1、a2、a3And a4Respectively an environmental standard value LiDegree of curvature QiDimension CiAnd rate of consumption HiA coefficient of a discriminant factor of4＞a3＞a1＞a2＞0；
    S2: the method comprises the steps of acquiring appearance data of each LCD (liquid Crystal display) screen of a discharging point in unit time in real time, wherein the appearance data comprise bad points, color resolution and softness rate, and respectively marking the appearance data as Vi、ZiAnd UiAccording to the formula
    Figure FDA0003332628900000022
    Obtaining a second pre-judgment value B of each LCD liquid crystal display screen in unit timeiWherein b is1、b2And b3Respectively the number of bad points ViColor resolution ZiAnd softness ratio UiOf error factor of, and b1＞b2＞b3＞0；
    S3: according to the formula
    Figure FDA0003332628900000023
    Obtaining a quality estimation value P of the LCD display screen in unit time, wherein P1And p2Are respectively the first predetermined value AiAnd a second predetermined value BiCoefficient of correction factor of, and p2＞p1＞0。
  3. 3. The discharging, screening and directing system of the LCD panel of claim 1, wherein the quality safety value P and the predetermined range K' thereof are subjected to discriminant analysis, and the specific operation steps are as follows:
    when the quality safety value P is greater than the maximum value of the preset range K ', an affirmative signal is generated, when the quality safety value P is between the preset ranges K ', a fuzzy signal is generated, and when the quality safety value P is less than the minimum value of the preset range K ', an indeterminate signal is generated.
  4. 4. The discharging screening guidance system for LCD screens of claim 1, wherein the specific operation steps of the comparative analysis operation are as follows:
    bd 1: the first predetermined value A is comparediWith a preset value K1Comparing the first predetermined value AiGreater than or equal to a preset value K1When the first predetermined value A is smaller than the first predetermined value A, a performance priority signal is generatediLess than a predetermined value K1Generating a performance deficiency signal, and calibrating a performance superior signal and the performance deficiency signal into a basic level signal;
    bd 2: the second prejudged value BiWith a preset value K2Comparing the two values to obtain a second predetermined value BiGreater than a predetermined value K2When the second predetermined value B is smaller than the first predetermined value B, generating an appearance lack signaliLess than or equal to a preset value K2Generating an appearance priority signal, and calibrating the appearance lack signal and the appearance priority signal into an appearance level signal;
    bd 3: and carrying out set calibration processing on the generated base level signal and appearance level signal, and obtaining an A + signal, an A-signal and an A + -signal.
  5. 5. The discharge screening guidance system for LCD screens of claim 4, wherein the specific operation steps of the collective calibration process are as follows:
    and performing set cross processing on the basic level signal and the appearance level signal, calibrating the basic level signal and the appearance level signal as an A + signal when the performance premium signal and the appearance premium signal are acquired simultaneously, calibrating the basic level signal and the appearance premium signal as an A-signal when the performance deficiency signal and the appearance deficiency signal are acquired simultaneously, calibrating other cross conditions as an A + -signal, and sending the A + signal, the A-signal and the A + -signal obtained after the set cross processing to the discharging guide module.
  6. 6. The discharged material screening and guiding system of the LCD screen of claim 1, wherein the specific operation steps of the discharged material guiding operation are as follows:
    when receiving the positive signal and the A + signal, generating a factory route guide signal, when receiving the A-signal, generating a factory return route guide signal, and when receiving the A + signal, generating a path guide signal to be detected.
CN202111285249.8A 2021-11-01 2021-11-01 Discharging screening and guiding system of LCD (liquid crystal display) Pending CN113988664A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115292969A (en) * 2022-10-08 2022-11-04 天津七一二通信广播股份有限公司 Equipment outfield reliability evaluation method and system based on delivery and repair data
CN116909218A (en) * 2023-06-21 2023-10-20 蚌埠市高远光电有限公司 Production monitoring system for liquid crystal display screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115292969A (en) * 2022-10-08 2022-11-04 天津七一二通信广播股份有限公司 Equipment outfield reliability evaluation method and system based on delivery and repair data
CN116909218A (en) * 2023-06-21 2023-10-20 蚌埠市高远光电有限公司 Production monitoring system for liquid crystal display screen
CN116909218B (en) * 2023-06-21 2024-01-30 蚌埠市高远光电有限公司 Production monitoring system for liquid crystal display screen

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