Performance evaluation method and system for organic light-emitting device
Through a multi-dimensional collaborative evaluation system, the performance parameters of multiple time stages of organic electroluminescent devices are obtained, curve fitting and coefficient calculation are performed, which solves the limitations of traditional evaluation methods, realizes accurate performance evaluation, and supports device design and process improvement.
Patent Information
- Application Number
- CN202510521775.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-07-25
AI Technical Summary
The traditional performance evaluation method of organic electroluminescent devices relies on manual operation and empirical judgment, making it difficult to achieve in-depth mining of performance data and automatic diagnosis of bottleneck problems, and fragmented evaluation methods cannot fully reveal the comprehensive performance performance of the device.
A multi-dimensional collaborative evaluation system is adopted to obtain the main performance evaluation impact parameters in multiple time stages, conduct curve fitting and coefficient calculations, and combine the alarm reminder mechanism to achieve accurate performance evaluation.
Break through the limitations of traditional single-level evaluation, provide objective and accurate performance evaluation results, reduce manual experience dependence, ensure the accuracy and comprehensiveness of device performance evaluation, and provide a scientific basis for device design and process improvement.
Smart Images
Figure CN120372970A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of organic electroluminescent devices, and more particularly, to a method and system for evaluating the performance of an organic electroluminescent device. Background Art
[0002] An organic electroluminescent device is a device that emits light through organic materials under the action of an electric field, and is widely used in the fields of display and lighting. Its core structure includes an organic light-emitting layer, electrodes, and functional layers. After being powered on, electrons and holes recombine in the light-emitting layer to generate photons.
[0003] Traditional performance evaluation methods rely on manual operations and empirical judgments, making it difficult to deeply mine performance data and automatically diagnose bottleneck problems, which restricts the improvement of device optimization efficiency. Moreover, traditional performance evaluation methods mainly focus on the performance evaluation of a single aspect, such as only testing the luminous efficiency of the device. This fragmented evaluation method cannot comprehensively reveal the comprehensive performance of organic electroluminescent devices, resulting in limitations in performance evaluation. Summary of the Invention
[0004] Embodiments of the present invention provide a method and system for evaluating the performance of an organic electroluminescent device. The present invention adopts a multi-dimensional collaborative evaluation system to break through the limitations of traditional single-aspect evaluations, ensure the accuracy and comprehensiveness of device performance evaluations, reduce dependence on manual experience, and provide objective and accurate performance evaluation results.
[0005] To achieve the above object, the present invention provides a method for evaluating the performance of an organic electroluminescent device, including: Obtaining main performance evaluation influencing parameters of an organic electroluminescent device at multiple time stages, integrating and processing the main performance evaluation influencing parameters at each time stage to obtain multiple sequences of main performance evaluation influencing parameters; Performing curve fitting on the main performance evaluation influencing parameters in the sequence of main performance evaluation influencing parameters based on the time stage to obtain a main performance evaluation influencing parameter curve, and calculating a sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influencing parameter curve; Extracting the sub-main performance evaluation coefficients of the organic electroluminescent device corresponding to each sequence of main performance evaluation influencing parameters, analyzing all the sub-main performance evaluation coefficients, and calculating a comprehensive main performance evaluation coefficient of the organic electroluminescent device; Presetting a preset comprehensive main performance evaluation coefficient, and judging whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient. If not, an alarm reminder is issued.
[0006] Further, when integrating and processing the main performance evaluation impact parameters of each time stage to obtain multiple sequences of main performance evaluation impact parameters, it includes: Extracting the main performance evaluation impact parameters of the same type corresponding to each time stage, and integrating them to obtain an initial sequence of main performance evaluation impact parameters; Determining the maximum main performance evaluation impact parameter and the minimum main performance evaluation impact parameter in the initial sequence of main performance evaluation impact parameters; Determining the difference between the maximum main performance evaluation impact parameter and the minimum main performance evaluation impact parameter as the sequence edge wave value of the initial sequence of main performance evaluation impact parameters; Calculating the sequence retention value of the initial sequence of main performance evaluation impact parameters according to the sequence edge wave value; Obtaining a preset sequence retention value. If the sequence retention value is greater than or equal to the preset sequence retention value, then taking the initial sequence of main performance evaluation impact parameters as the sequence of main performance evaluation impact parameters; If the sequence retention value is less than the preset sequence retention value, then sorting the initial sequence of main performance evaluation impact parameters from small to large, determining the first main performance evaluation impact parameter and the second main performance evaluation impact parameter, and calculating the first difference between the first main performance evaluation impact parameter and the second main performance evaluation impact parameter; Obtaining a preset first difference. If the first difference is greater than or equal to the preset first difference, then retaining the first difference between the first main performance evaluation impact parameter and the second main performance evaluation impact parameter; If the first difference is less than the preset first difference, then deleting the first main performance evaluation impact parameter and retaining the second main performance evaluation impact parameter; Determining the third main performance evaluation impact parameter and the fourth main performance evaluation impact parameter, calculating the second difference between the third main performance evaluation impact parameter and the fourth main performance evaluation impact parameter, repeating the iterative calculation, and obtaining the sequence of main performance evaluation impact parameters based on all the retained main performance evaluation impact parameters.
[0007] Further, when calculating the sequence retention value of the initial sequence of main performance evaluation impact parameters according to the sequence edge wave value, it includes: Using the following formula to calculate the sequence retention value of the initial sequence of main performance evaluation impact parameters: ; Wherein, m is the sequence retention value of the initial main performance evaluation influence parameter sequence, n1 is the main performance evaluation influence parameter corresponding to the initial time stage, n2 is the main performance evaluation influence parameter corresponding to the end time stage, b is the sequence side wave value, v is the number of main performance evaluation influence parameters in the initial main performance evaluation influence parameter sequence, X c is the c-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence, X c+1 is the (c + 1)-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence.
[0008] Further, when calculating the sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve, it includes: Determine all increasing main performance evaluation influence parameters and decreasing main performance evaluation influence parameters on the main performance evaluation influence parameter curve; Determine a reference increasing main performance evaluation influence parameter, and obtain a reference increasing main performance evaluation influence parameter set according to the reference increasing main performance evaluation influence parameter and z main performance evaluation influence parameters on the left and right; Calculate the absolute value of the difference between the reference increasing main performance evaluation influence parameter and the maximum main performance evaluation influence parameter on the main performance evaluation influence parameter curve as the difference value of the reference increasing main performance evaluation influence parameter; Calculate the set mean of the reference increasing main performance evaluation influence parameter set, calculate the parameter mean of all decreasing main performance evaluation influence parameters, and determine the absolute value of the difference between the set mean and the parameter mean as the increase-decrease difference value; Determine the ratio of the difference value to the increase-decrease difference value as the comprehensive difference value of the reference increasing main performance evaluation influence parameter; Analyze the remaining increasing main performance evaluation influence parameters and determine the corresponding comprehensive difference values; Select the maximum comprehensive difference value from all the comprehensive difference values as the sub-main performance evaluation coefficient of the organic electroluminescent device.
[0009] Further, when analyzing all the sub-main performance evaluation coefficients and calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device, it includes: Combine every k sub-main performance evaluation coefficients to obtain multiple sub-main performance evaluation coefficient combinations; Determine the sum value of the sub-main performance evaluation coefficients of each sub-main performance evaluation coefficient combination, and select the maximum sub-main performance evaluation coefficient from all the sub-main performance evaluation coefficients; Determine the ratio of the maximum sub-main performance evaluation coefficient to the sum value of the sub-main performance evaluation coefficients as the relative sub-main performance evaluation coefficient; Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients.
[0010] Further, when calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients, it includes: Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to the following formula: ; where j is the comprehensive main performance evaluation coefficient of the organic electroluminescent device, h is the number of relative sub-main performance evaluation coefficients, g y is the y-th relative sub-main performance evaluation coefficient, g min is the minimum relative sub-main performance evaluation coefficient, g max is the maximum relative sub-main performance evaluation coefficient, is the maximum value of all of.
[0011] Further, when presetting a preset comprehensive main performance evaluation coefficient and judging whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, it includes: When the comprehensive main performance evaluation coefficient is less than the preset comprehensive main performance evaluation coefficient, it is judged that the organic electroluminescent device does not meet the operation requirements and an alarm reminder is issued; When the comprehensive main performance evaluation coefficient is greater than or equal to the preset comprehensive main performance evaluation coefficient, it is judged that the organic electroluminescent device meets the operation requirements.
[0012] Further, when judging that the organic electroluminescent device does not meet the operation requirements and an alarm reminder is issued, it includes: Determine the difference in the comprehensive main performance evaluation coefficient between the preset comprehensive main performance evaluation coefficient and the comprehensive main performance evaluation coefficient; Preset a first preset difference in the comprehensive main performance evaluation coefficient and a second preset difference in the comprehensive main performance evaluation coefficient; Preset a first preset alarm level, a second preset alarm level, and a third preset alarm level; When the difference in the comprehensive main performance evaluation coefficient is less than the first preset difference in the comprehensive main performance evaluation coefficient, an alarm is issued according to the third preset alarm level; When the difference in the comprehensive main performance evaluation coefficient is greater than or equal to the first preset difference in the comprehensive main performance evaluation coefficient and less than the second preset difference in the comprehensive main performance evaluation coefficient, an alarm is issued according to the second preset alarm level; When the difference of the comprehensive main performance evaluation coefficient is greater than or equal to the second preset difference of the comprehensive main performance evaluation coefficient, an alarm is issued according to the first preset alarm level.
[0013] To achieve the above object, the present invention also provides a performance evaluation system for an organic electroluminescent device, including: A sequence generation module, configured to obtain main performance evaluation influence parameters of an organic electroluminescent device at multiple time stages, integrate and process the main performance evaluation influence parameters at each time stage to obtain multiple main performance evaluation influence parameter sequences; A first calculation module, configured to perform curve fitting on the main performance evaluation influence parameters in the main performance evaluation influence parameter sequence based on the time stage to obtain a main performance evaluation influence parameter curve, and calculate a sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve; A second calculation module, configured to extract the sub-main performance evaluation coefficients of the organic electroluminescent device corresponding to each main performance evaluation influence parameter sequence, analyze all the sub-main performance evaluation coefficients, and calculate a comprehensive main performance evaluation coefficient of the organic electroluminescent device; A performance evaluation module, configured to preset a preset comprehensive main performance evaluation coefficient, judge whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, and if not, issue an alarm reminder.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention discloses a performance evaluation method and system for an organic electroluminescent device, which obtains main performance evaluation influence parameters of the organic electroluminescent device at multiple time stages to obtain main performance evaluation influence parameter sequences; performs curve fitting on the main performance evaluation influence parameter sequences to obtain main performance evaluation influence parameter curves, and calculates sub-main performance evaluation coefficients of the organic electroluminescent device; analyzes the sub-main performance evaluation coefficients, calculates a comprehensive main performance evaluation coefficient of the organic electroluminescent device; judges whether the organic electroluminescent device meets the operation requirements according to the comprehensive main performance evaluation coefficient, and if not, issues an alarm reminder. By adopting a multi-dimensional collaborative evaluation system, it breaks through the limitations of traditional single-level evaluation, ensures the accuracy and comprehensiveness of device performance evaluation, reduces the dependence on manual experience, provides objective and accurate performance evaluation results, and provides a scientific basis for device design and process improvement. Description of the Drawings
[0015] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings: Figure 1 Fig. shows a schematic flow chart of a method for evaluating the performance of an organic electroluminescent device according to an embodiment of the present invention; Figure 2 Fig. Figure 1 shows a schematic structural diagram of a system for evaluating the performance of an organic electroluminescent device according to an embodiment of the present invention. Detailed Embodiments
[0016] The following will further describe in detail the specific embodiments of the present invention with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.
[0017] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.
[0018] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.
[0019] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0020] The following is a description of the preferred embodiments of the present invention with reference to the drawings.
[0021] As Figure 1 shown, the embodiments of the present invention disclose a method for evaluating the performance of an organic electroluminescent device, including: S110: Obtain the main performance evaluation influence parameters of multiple time stages of an organic electroluminescent device, integrate and process the main performance evaluation influence parameters of each time stage to obtain multiple sequences of main performance evaluation influence parameters; In some embodiments of the present application, when integrating and processing the main performance evaluation influence parameters of each time stage to obtain multiple sequences of main performance evaluation influence parameters, it includes: Extract the main performance evaluation influence parameters of the same type corresponding to each time stage, and integrate them to obtain an initial sequence of main performance evaluation influence parameters; Determine the maximum main performance evaluation influence parameter and the minimum main performance evaluation influence parameter in the initial sequence of main performance evaluation influence parameters; Determine the difference between the maximum main performance evaluation influence parameter and the minimum main performance evaluation influence parameter as the sequence edge wave value of the initial sequence of main performance evaluation influence parameters; Calculate the sequence retention value of the initial sequence of main performance evaluation influence parameters according to the sequence edge wave value; Obtain a preset sequence retention value. If the sequence retention value is greater than or equal to the preset sequence retention value, then use the initial sequence of main performance evaluation influence parameters as the sequence of main performance evaluation influence parameters; If the sequence retention value is less than the preset sequence retention value, then sort the initial sequence of main performance evaluation influence parameters from small to large, determine the first main performance evaluation influence parameter and the second main performance evaluation influence parameter, and calculate the first difference between the first main performance evaluation influence parameter and the second main performance evaluation influence parameter; Obtain a preset first difference. If the first difference is greater than or equal to the preset first difference, then retain the first difference between the first main performance evaluation influence parameter and the second main performance evaluation influence parameter; If the first difference is less than the preset first difference, then delete the first main performance evaluation influence parameter and retain the second main performance evaluation influence parameter; Determine the third main performance evaluation influence parameter and the fourth main performance evaluation influence parameter, calculate the second difference between the third main performance evaluation influence parameter and the fourth main performance evaluation influence parameter, repeat the iterative calculation, and obtain the sequence of main performance evaluation influence parameters according to all the retained main performance evaluation influence parameters.
[0022] In this embodiment, the time stage is preset and refers to a specific time. Here, the number of time stages is preferably 10, preferably the 5th second, the 10th second, the 15th second, the 20th second, the 25th second, the 30th second, the 35th second, the 40th second, the 45th second, and the 50th second.
[0023] In this embodiment, the main performance evaluation influence parameters refer to the data generated during the operation of the organic electroluminescent device, which can reflect the performance data of the organic electroluminescent device, including luminous brightness, current efficiency, power efficiency, external quantum efficiency, etc., which are not shown one by one here.
[0024] In this embodiment, the same type of main performance evaluation influence parameters corresponding to each time stage are extracted, such as the current efficiency corresponding to each time stage, and integrated into an initial main performance evaluation influence parameter sequence. The data in this sequence are all current efficiencies, and an initial main performance evaluation influence parameter sequence regarding power efficiency can also be integrated.
[0025] In this embodiment, the preset sequence retention value is preferably 20, and can be specifically adjusted according to the actual situation.
[0026] In this embodiment, the preset first difference is preferably 4, and can be specifically adjusted according to the actual situation.
[0027] The beneficial effects of the above technical solution are as follows: By calculating the sequence retention value, the present invention can determine whether the initial main performance evaluation influence parameter sequence can be directly used as the main performance evaluation influence parameter sequence, which can eliminate data noise, or obtain the main performance evaluation influence parameter sequence according to all the remaining main performance evaluation influence parameters, ensuring the determination accuracy of the main performance evaluation influence parameter sequence, and thus laying a foundation for calculating the performance evaluation of the organic electroluminescent device.
[0028] In some embodiments of the present application, when calculating the sequence retention value of the initial main performance evaluation influence parameter sequence according to the sequence edge wave value, it includes: It is used to calculate the sequence retention value of the initial main performance evaluation influence parameter sequence according to the following formula: ; where m is the sequence retention value of the initial main performance evaluation influence parameter sequence, n1 is the main performance evaluation influence parameter corresponding to the initial time stage, n2 is the main performance evaluation influence parameter corresponding to the end time stage, b is the sequence edge wave value, v is the number of main performance evaluation influence parameters in the initial main performance evaluation influence parameter sequence, X c is the c-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence, and X c+1 is the (c + 1)-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence.
[0029] S120: Based on the time stage, perform curve fitting on the main performance evaluation influence parameters in the main performance evaluation influence parameter sequence to obtain a main performance evaluation influence parameter curve, and calculate the sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve; In some embodiments of the present application, when calculating the sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve, it includes: Determine all increasing main performance evaluation influence parameters and decreasing main performance evaluation influence parameters on the main performance evaluation influence parameter curve; Determine a reference increasing main performance evaluation influence parameter, and obtain a reference increasing main performance evaluation influence parameter set according to the reference increasing main performance evaluation influence parameter and the z main performance evaluation influence parameters on the left and right; Calculate the absolute value of the difference between the reference increasing main performance evaluation influence parameter and the maximum main performance evaluation influence parameter on the main performance evaluation influence parameter curve as the difference value of the reference increasing main performance evaluation influence parameter; Calculate the set mean of the reference increasing main performance evaluation influence parameter set, calculate the parameter mean of all decreasing main performance evaluation influence parameters, and determine the absolute value of the difference between the set mean and the parameter mean as the increase-decrease difference value; Determine the ratio of the difference value to the increase-decrease difference value as the comprehensive difference value of the reference increasing main performance evaluation influence parameter; Analyze the remaining increasing main performance evaluation influence parameters and determine the corresponding comprehensive difference values; Select the maximum comprehensive difference value from all the comprehensive difference values as the sub-main performance evaluation coefficient of the organic electroluminescent device.
[0030] In this embodiment, when performing curve fitting on the main performance evaluation influence parameters in the main performance evaluation influence parameter sequence, the fitting order of the abscissa is determined according to the time stage.
[0031] In this embodiment, the increasing main performance evaluation influence parameter refers to two or more continuously increasing data. Here is an example. For a given set of data 1, 2, 3, 4, 3, here 1, 2, 3, 4 are the increasing main performance evaluation influence parameters. At this time, the data 3 is less than the data 4. For a given set of data 4, 3, 5, the data 4 here cannot be defined as an increasing main performance evaluation influence parameter because two or more data are required. The decreasing main performance evaluation influence parameter refers to two or more continuously decreasing data. Here is an example. For a given set of data 5, 4, 3, 2, 5, here 5, 4, 3, 2 are the decreasing main performance evaluation influence parameters. At this time, the data 5 is greater than the data 2. For a given set of data 5, 4, 8, the data 5 here cannot be defined as a decreasing main performance evaluation influence parameter because two or more data are required.
[0032] In this embodiment, z here refers to the quantity, preferably 3, that is, according to the reference increasing main performance evaluation influence parameter, the 3 main performance evaluation influence parameters on the left of the reference increasing main performance evaluation influence parameter form the reference increasing main performance evaluation influence parameter set.
[0033] In this embodiment, by repeating the above steps, a comprehensive difference value can be obtained according to each main performance evaluation influencing parameter.
[0034] The beneficial effect of the above technical solution is that: the present invention selects the maximum comprehensive difference value from all the comprehensive difference values as the sub-main performance evaluation coefficient of the organic electroluminescent device, ensuring the determination accuracy of the sub-main performance evaluation coefficient. Through the sub-main performance evaluation coefficient, the influence degree of the same type of main performance evaluation influencing parameters on the performance evaluation of the organic electroluminescent device can be reflected.
[0035] S130: Extract the sub-main performance evaluation coefficient of the organic electroluminescent device corresponding to each main performance evaluation influencing parameter sequence, and analyze all the sub-main performance evaluation coefficients to calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device; In some embodiments of the present application, when analyzing all the sub-main performance evaluation coefficients and calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device, it includes: Combine every k sub-main performance evaluation coefficients to obtain multiple sub-main performance evaluation coefficient combinations; Determine the sum value of the sub-main performance evaluation coefficients of each sub-main performance evaluation coefficient combination, and select the maximum sub-main performance evaluation coefficient from all the sub-main performance evaluation coefficients; Determine the ratio of the maximum sub-main performance evaluation coefficient to the sum value of the sub-main performance evaluation coefficients as the relative sub-main performance evaluation coefficient; Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients.
[0036] In this embodiment, k here refers to a specific quantity, preferably 3.
[0037] The beneficial effect of the above technical solution is that: the present invention calculates the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients. Through the comprehensive main performance evaluation coefficient, the sub-main performance evaluation coefficients of each different dimension can be integrated and analyzed, thereby ensuring the comprehensiveness and integrity of the performance evaluation of the organic electroluminescent device and avoiding errors.
[0038] In some embodiments of the present application, when calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients, it includes: Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to the following formula: ; Among them, j is the comprehensive main performance evaluation coefficient of the organic electroluminescent device, h is the number of relative sub-main performance evaluation coefficients, and g y is the y-th relative sub-main performance evaluation coefficient, and g min is the minimum relative sub-main performance evaluation coefficient, and g max is the maximum relative sub-main performance evaluation coefficient, is the maximum value of all of them.
[0039] S140: Preset a preset comprehensive main performance evaluation coefficient in advance. According to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, determine whether the organic electroluminescent device meets the operation requirements. If not, send an alarm reminder.
[0040] In some embodiments of the present application, when presetting a preset comprehensive main performance evaluation coefficient in advance and determining whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, it includes: When the comprehensive main performance evaluation coefficient is less than the preset comprehensive main performance evaluation coefficient, it is determined that the organic electroluminescent device does not meet the operation requirements, and an alarm reminder is sent; When the comprehensive main performance evaluation coefficient is greater than or equal to the preset comprehensive main performance evaluation coefficient, it is determined that the organic electroluminescent device meets the operation requirements.
[0041] In this embodiment, the preset comprehensive main performance evaluation coefficient is preferably 8, and it can also be adjusted according to the actual situation specifically.
[0042] The beneficial effects of the above technical solutions are as follows: According to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, the present invention determines whether the organic electroluminescent device meets the operation requirements, adopts a multi-dimensional collaborative evaluation system, breaks through the limitations of traditional single-level evaluation, ensures the accuracy and comprehensiveness of device performance evaluation, reduces the dependence on manual experience, provides objective and accurate performance evaluation results, and provides a scientific basis for device design and process improvement.
[0043] In some embodiments of the present application, when determining that the organic electroluminescent device does not meet the operation requirements and sending an alarm reminder, it includes: Determine the comprehensive main performance evaluation coefficient difference between the preset comprehensive main performance evaluation coefficient and the comprehensive main performance evaluation coefficient; Preset a first preset comprehensive main performance evaluation coefficient difference and a second preset comprehensive main performance evaluation coefficient difference in advance; Preset a first preset alarm level, a second preset alarm level, and a third preset alarm level in advance; When the difference of the comprehensive main performance evaluation coefficient is less than the first preset difference of the comprehensive main performance evaluation coefficient, an alarm is issued according to the third preset alarm level; When the difference of the comprehensive main performance evaluation coefficient is greater than or equal to the first preset difference of the comprehensive main performance evaluation coefficient and less than the second preset difference of the comprehensive main performance evaluation coefficient, an alarm is issued according to the second preset alarm level; When the difference of the comprehensive main performance evaluation coefficient is greater than or equal to the second preset difference of the comprehensive main performance evaluation coefficient, an alarm is issued according to the first preset alarm level.
[0044] In this embodiment, the first preset difference of the comprehensive main performance evaluation coefficient is preferably 4, and the second preset difference of the comprehensive main performance evaluation coefficient is preferably 7.
[0045] In this embodiment, for the first preset alarm level, the second preset alarm level, and the third preset alarm level, the first preset alarm level is greater than the second preset alarm level which is greater than the third preset alarm level.
[0046] The beneficial effects of the above technical solution are as follows: According to the difference of the comprehensive main performance evaluation coefficient, the first preset difference of the comprehensive main performance evaluation coefficient, and the second preset difference of the comprehensive main performance evaluation coefficient, the present invention selects different preset alarm levels, realizing refined and hierarchical alarms, and can provide a basis for the subsequent production, processing, operation, and maintenance of organic electroluminescent devices.
[0047] To further elaborate on the technical idea of the present invention, the technical solution of the present invention will be described below in combination with specific application scenarios.
[0048] Correspondingly, as Figure 2 shown, the present application further provides a performance evaluation system for an organic electroluminescent device, including: A sequence generation module, configured to obtain the main performance evaluation influence parameters of the organic electroluminescent device at multiple time stages, integrate and process the main performance evaluation influence parameters of each time stage to obtain multiple main performance evaluation influence parameter sequences; A first calculation module, configured to perform curve fitting on the main performance evaluation influence parameters in the main performance evaluation influence parameter sequence based on the time stage to obtain a main performance evaluation influence parameter curve, and calculate the sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve; A second calculation module, configured to extract the sub-main performance evaluation coefficients of the organic electroluminescent device corresponding to each main performance evaluation influence parameter sequence, analyze all the sub-main performance evaluation coefficients, and calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device; A performance evaluation module is configured to preset a preset comprehensive main performance evaluation coefficient, and determine whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient. If not, an alarm reminder is issued.
[0049] In the description of the above embodiments, the specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.
[0050] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way, and only for the sake of saving space and resources, the description of all these combinations is not given in this specification.
[0051] Those of ordinary skill in the art can understand that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A method for evaluating the performance of an organic electroluminescent device, characterized in that, Including: Obtaining the main performance evaluation influencing parameters of multiple time stages of an organic electroluminescent device, integrating and processing the main performance evaluation influencing parameters of each time stage to obtain multiple main performance evaluation influencing parameter sequences; Based on the time stage, performing curve fitting on the main performance evaluation influencing parameters in the main performance evaluation influencing parameter sequence to obtain a main performance evaluation influencing parameter curve, and calculating a sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influencing parameter curve; Extracting the sub-main performance evaluation coefficients of the organic electroluminescent device corresponding to each main performance evaluation influencing parameter sequence, and analyzing all the sub-main performance evaluation coefficients to calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device; Presetting a preset comprehensive main performance evaluation coefficient, and judging whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient. If not, an alarm reminder is issued.
2. The performance evaluation method of the organic electroluminescent device according to claim 1, characterized in that When integrating and processing the main performance evaluation influencing parameters of each time stage to obtain multiple main performance evaluation influencing parameter sequences, it includes: Extracting the main performance evaluation influencing parameters of the same type corresponding to each time stage, and integrating them to obtain an initial main performance evaluation influencing parameter sequence; Determining the maximum main performance evaluation influencing parameter and the minimum main performance evaluation influencing parameter in the initial main performance evaluation influencing parameter sequence; Determining the difference between the maximum main performance evaluation influencing parameter and the minimum main performance evaluation influencing parameter as the sequence side wave value of the initial main performance evaluation influencing parameter sequence; Calculating the sequence retention value of the initial main performance evaluation influencing parameter sequence according to the sequence side wave value; Obtaining a preset sequence retention value. If the sequence retention value is greater than or equal to the preset sequence retention value, the initial main performance evaluation influencing parameter sequence is used as the main performance evaluation influencing parameter sequence; If the sequence retention value is less than the preset sequence retention value, sorting the initial main performance evaluation influencing parameter sequence from small to large, determining the first main performance evaluation influencing parameter and the second main performance evaluation influencing parameter, and calculating the first difference between the first main performance evaluation influencing parameter and the second main performance evaluation influencing parameter; Obtaining a preset first difference. If the first difference is greater than or equal to the preset first difference, retaining the first difference between the first main performance evaluation influencing parameter and the second main performance evaluation influencing parameter; If the first difference is less than the preset first difference, deleting the first main performance evaluation influencing parameter and retaining the second main performance evaluation influencing parameter; Determining the third main performance evaluation influencing parameter and the fourth main performance evaluation influencing parameter, calculating the second difference between the third main performance evaluation influencing parameter and the fourth main performance evaluation influencing parameter, repeating the iterative calculation, and obtaining the main performance evaluation influencing parameter sequence according to all the retained main performance evaluation influencing parameters.
3. The method for evaluating the performance of the organic electroluminescent device according to claim 2, wherein, When calculating the sequence retention value of the initial main performance evaluation influencing parameter sequence according to the sequence side wave value, it includes: Used to calculate the sequence retention value of the initial main performance evaluation influence parameter sequence according to the following formula: ； Among them, m is the sequence retention value of the initial main performance evaluation influence parameter sequence, n1 is the main performance evaluation influence parameter corresponding to the initial time stage, n2 is the main performance evaluation influence parameter corresponding to the end time stage, b is the sequence side wave value, v is the number of main performance evaluation influence parameters in the initial main performance evaluation influence parameter sequence, X c is the c-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence, X c+1 is the (c + 1)-th main performance evaluation influence parameter in the initial main performance evaluation influence parameter sequence.
4. The performance evaluation method of the organic electroluminescent device according to claim 1, characterized in that When calculating the sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve, it includes: Determine all increasing main performance evaluation influence parameters and decreasing main performance evaluation influence parameters on the main performance evaluation influence parameter curve; Determine a reference increasing main performance evaluation influence parameter, and obtain a reference increasing main performance evaluation influence parameter set according to the reference increasing main performance evaluation influence parameter and the z main performance evaluation influence parameters on the left and right; Calculate the absolute value of the difference between the reference increasing main performance evaluation influence parameter and the maximum main performance evaluation influence parameter on the main performance evaluation influence parameter curve as the difference value of the reference increasing main performance evaluation influence parameter; Calculate the set mean of the reference increasing main performance evaluation influence parameter set, calculate the parameter mean of all decreasing main performance evaluation influence parameters, and determine the absolute value of the difference between the set mean and the parameter mean as the increase-decrease difference value; Determine the ratio of the difference value to the increase-decrease difference value as the comprehensive difference value of the reference increasing main performance evaluation influence parameter; Analyze the remaining increasing main performance evaluation influence parameters and determine the corresponding comprehensive difference values; Select the maximum comprehensive difference value from all the comprehensive difference values as the sub-main performance evaluation coefficient of the organic electroluminescent device.
5. The performance evaluation method of the organic electroluminescent device according to claim 1, wherein When analyzing all the sub-main performance evaluation coefficients and calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device, it includes: Combine every k sub-main performance evaluation coefficients to obtain multiple sub-main performance evaluation coefficient combinations; Determine the sum of the sub-main performance evaluation coefficients of each sub-main performance evaluation coefficient combination, and select the maximum sub-main performance evaluation coefficient from all the sub-main performance evaluation coefficients; Determine the ratio of the maximum sub-main performance evaluation coefficient to the sum of the sub-main performance evaluation coefficients as the relative sub-main performance evaluation coefficient; Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients.
6. The performance evaluation method of the organic electroluminescent device according to claim 5, wherein When calculating the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to all the relative sub-main performance evaluation coefficients, it includes: Calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device according to the following formula: ； Among them, j is the comprehensive main performance evaluation coefficient of the organic electroluminescent device, h is the number of relative sub-main performance evaluation coefficients, and g y is the y-th relative sub-main performance evaluation coefficient, and g min is the minimum relative sub-main performance evaluation coefficient, and g max is the maximum relative sub-main performance evaluation coefficient, is the maximum value of all of them.
7. The performance evaluation method of the organic electroluminescent device according to claim 1, wherein When presetting a preset comprehensive main performance evaluation coefficient and judging whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, it includes: When the comprehensive main performance evaluation coefficient is less than the preset comprehensive main performance evaluation coefficient, it is judged that the organic electroluminescent device does not meet the operation requirements and an alarm reminder is issued; When the comprehensive main performance evaluation coefficient is greater than or equal to the preset comprehensive main performance evaluation coefficient, it is judged that the organic electroluminescent device meets the operation requirements.
8. The method for evaluating the performance of the organic electroluminescent device according to claim 7, characterized in that, When judging that the organic electroluminescent device does not meet the operation requirements and issuing an alarm reminder, it includes: Determine the comprehensive main performance evaluation coefficient difference between the preset comprehensive main performance evaluation coefficient and the comprehensive main performance evaluation coefficient; Preset a first preset difference of comprehensive main performance evaluation coefficients and a second preset difference of comprehensive main performance evaluation coefficients; Preset a first preset alarm level, a second preset alarm level, and a third preset alarm level; When the difference of the comprehensive main performance evaluation coefficients is less than the first preset difference of the comprehensive main performance evaluation coefficients, an alarm is issued according to the third preset alarm level; When the difference of the comprehensive main performance evaluation coefficients is greater than or equal to the first preset difference of the comprehensive main performance evaluation coefficients and less than the second preset difference of the comprehensive main performance evaluation coefficients, an alarm is issued according to the second preset alarm level; When the difference of the comprehensive main performance evaluation coefficients is greater than or equal to the second preset difference of the comprehensive main performance evaluation coefficients, an alarm is issued according to the first preset alarm level.
9. A performance evaluation system for an organic electroluminescent device, which is applied to the performance evaluation method of the organic electroluminescent device according to any one of claims 1-8, characterized in that, Comprising: A sequence generation module, configured to obtain main performance evaluation influence parameters at multiple time stages of an organic electroluminescent device, integrate and process the main performance evaluation influence parameters at each time stage to obtain multiple main performance evaluation influence parameter sequences; A first calculation module, configured to perform curve fitting on the main performance evaluation influence parameters in the main performance evaluation influence parameter sequence based on the time stage to obtain a main performance evaluation influence parameter curve, and calculate a sub-main performance evaluation coefficient of the organic electroluminescent device according to the main performance evaluation influence parameter curve; A second calculation module, configured to extract the sub-main performance evaluation coefficients of the organic electroluminescent device corresponding to each main performance evaluation influence parameter sequence, and analyze all the sub-main performance evaluation coefficients to calculate the comprehensive main performance evaluation coefficient of the organic electroluminescent device; A performance evaluation module, configured to preset a preset comprehensive main performance evaluation coefficient, determine whether the organic electroluminescent device meets the operation requirements according to the relationship between the comprehensive main performance evaluation coefficient and the preset comprehensive main performance evaluation coefficient, and if not, issue an alarm reminder.