Organic electroluminescent device detection system

Abstract

The invention provides an organic electroluminescent device detection system, and belongs to the technical field of performance detection. The module comprises: a light source excitation module, which is used for providing incident light with adjustable wavelength and intensity to a to-be-tested organic electroluminescent device; the photoelectric response acquisition module is used for monitoring a current-voltage characteristic curve of the to-be-detected organic light-emitting device under the incident light in real time to obtain a photoelectric transmission efficiency analysis result; the spectral analysis module is used for collecting a reflection spectrum of the organic electroluminescent device to be detected and analyzing chromaticity to obtain a luminous efficiency analysis result; the service life prediction module is used for acquiring and analyzing the predicted service life of the to-be-tested organic light-emitting device through variable temperature testing to obtain a service life analysis result; and the data processing module is used for receiving analysis results of all the modules and outputting a performance parameter report of the organic light-emitting device. Performance is analyzed comprehensively, analysis accuracy is improved, report generation is integrated, and core indexes are covered.

Description

Technical Field

[0001] The present invention relates to the technical field of performance detection, and in particular to an organic electroluminescent device detection system. Background Art

[0002] At present, organic electroluminescent devices have been widely used in displays, lighting and other electronic devices due to their low power consumption, high brightness, flexibility and thinness. With the advancement of technology, the efficiency, life and stability of organic electroluminescent devices have been continuously improved, and the demand for detection systems has also been raised. However, the usual detection method only detects a single characteristic of the device, and the detection of other links is rough, resulting in low accuracy of the detection results.

[0003] Therefore, the present invention proposes an organic electroluminescent device detection system. Summary of the invention

[0004] The present invention provides an organic electroluminescent device detection system, which is used to comprehensively evaluate the photoelectric performance, luminous efficiency and life of the organic electroluminescent device through light source excitation, photoelectric response monitoring, spectrum analysis, life prediction and data processing modules, and provide an accurate performance parameter report.

[0005] In one aspect, the present invention provides an organic electroluminescent device detection system, comprising: Light source excitation module: used to provide incident light with adjustable wavelength and intensity to the organic electroluminescent device to be tested; Photoelectric response acquisition module: real-time monitoring of the current-voltage characteristic curve of the organic electroluminescent device under the incident light to obtain the photoelectric transmission efficiency analysis result; Spectral analysis module: used to collect the reflection spectrum of the organic electroluminescent device to be tested and analyze the chromaticity to obtain the luminous efficiency analysis results; Life prediction module: used to collect and analyze the predicted life of the organic electroluminescent device to be tested through variable temperature testing to obtain life analysis results; Data processing module: receives the analysis results of each module and outputs the performance parameter report of the organic electroluminescent device.

[0006] On the other hand, the light source excitation module comprises: Target determination unit: selects a matching organic electroluminescent device as a detection object according to preset standards; Light source excitation device unit: using a laser light source with adjustable intensity as a light source emitting device, configuring an optical filter as a wavelength control device, and configuring a light source excitation device; Based on the light source excitation device, the incident light is emitted into the organic electroluminescent device to be tested at a preset angle, and the reflected light signal is collected.

[0007] On the other hand, the light source excitation module transmits the excitation light uniformly to the surface of the organic electroluminescent device to be tested through the optical fiber coupler.

[0008] On the other hand, the photoelectric response acquisition module includes: Preprocessing unit: collects the reflected light signal of the organic electroluminescent device to be tested, uses a filter to remove noise, obtains a first light signal, and performs calibration processing based on the standard light source calibration spectrometer response function to obtain a standard light signal, specifically: ; in, Represents the standard optical signal, represents the response function of the standard light source calibrated spectrometer, represents the first optical signal, Indicates wavelength.

[0009] On the other hand, the photoelectric response acquisition module includes: Current acquisition unit: under the condition of incident light, a linear scanning voltage is applied to the organic electroluminescent device to be tested, and the current signal is collected in real time, and the corresponding signal is obtained after preprocessing; Current-voltage characteristic curve unit: Based on the current acquisition unit, the current-voltage characteristic curve is constructed as follows: ; in, Indicates voltage corresponding to current, represents the reverse saturation current, q represents the electron charge, n represents the ideal factor, k represents the Boltzmann constant, T represents the average temperature, represents the photogenerated current, represents the threshold voltage, A represents the proportionality coefficient, and m represents the nonlinear index; Transmission efficiency unit: Based on the current-voltage characteristic curve, the light output per unit injected current is calculated as: ; in, represents the photoelectric transmission efficiency, Indicates the angle of incidence The light intensity, Represents the area of ​​the luminous region, represents the solid angle of the integration interval; The photoelectric transmission efficiency analysis result of the organic electroluminescent device to be tested under the condition of the current-voltage characteristic curve is obtained.

[0010] On the other hand, the spectrum analysis module comprises: Chromaticity analysis unit: calculates the chromaticity coordinates of the organic electroluminescent device to be tested through the reflection spectrum and color matching function; After the organic electroluminescent device to be tested emits light for a predetermined time, the chromaticity shift is calculated as: ; in, Indicates the chromaticity deviation of the organic electroluminescent device to be tested, represents the i-th initial x-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the x-direction chromaticity coordinate of the ith light-emitting predetermined time of the organic electroluminescent device to be tested, represents the i-th initial y-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the y-direction chromaticity coordinate of the i-th predetermined light emission time of the organic electroluminescent device to be tested, and N represents that the organic electroluminescent device to be tested has a total of N chromaticity coordinates; Luminous efficiency calculation unit: apply bias voltage to the organic electroluminescent device to be tested, obtain the response current according to the current-voltage characteristic curve, and combine the standard light signal to obtain the luminous efficiency: ; in, represents the luminous efficiency under bias voltage V, represents the response current, represents the maximum wavelength, represents the minimum wavelength, represents the standard optical signal based on the bias voltage V, represents the error adjustment function; The chromaticity change result and the luminous efficiency constitute the luminous efficiency analysis result of the organic electroluminescent device to be tested.

[0011] On the other hand, the life prediction module includes: Life unit: Based on the variable temperature control device, the low temperature threshold and the high temperature threshold are configured, and the life and activation energy model of the organic electroluminescent device to be tested is obtained as follows: ; in, Indicates the life of the organic electroluminescent device to be tested, Indicates the reference temperature of the organic electroluminescent device to be tested The life span of represents the activation energy of the organic electroluminescent device to be tested, represents the Boltzmann constant, M represents the number of temperature change cycles; Indicates the current temperature of the organic electroluminescent device to be tested; The activation energy of the organic electroluminescent device to be tested is obtained through historical experimental data, and a model of life and activation energy is fitted. The life is predicted according to the number of temperature change cycles, and the life analysis result of the organic electroluminescent device to be tested is obtained.

[0012] On the other hand, the data processing module includes: Summary unit: obtain the photoelectric transmission efficiency analysis results, luminous efficiency analysis results and life analysis results of the organic electroluminescent device to be tested, and display the corresponding performance analysis results in the form of tables and curve graphs; Based on the standard report format, all performance analysis results and images are summarized to generate a formal performance parameter report.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an organic electroluminescent device detection system, which is used to comprehensively evaluate the photoelectric performance, luminous efficiency and life of the organic electroluminescent device through light source excitation, photoelectric response monitoring, spectrum analysis, life prediction and data processing modules, and provide an accurate performance parameter report. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of an organic electroluminescent device detection system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1: like Figure 1 As shown, an organic electroluminescent device detection system provided by an embodiment of the present invention includes: Light source excitation module: used to provide incident light with adjustable wavelength and intensity to the organic electroluminescent device to be tested; Photoelectric response acquisition module: real-time monitoring of the current-voltage characteristic curve of the organic electroluminescent device under the incident light to obtain the photoelectric transmission efficiency analysis result; Spectral analysis module: used to collect the reflection spectrum of the organic electroluminescent device to be tested and analyze the chromaticity to obtain the luminous efficiency analysis results; Life prediction module: used to collect and analyze the predicted life of the organic electroluminescent device to be tested through variable temperature testing to obtain life analysis results; Data processing module: receives the analysis results of each module and outputs the performance parameter report of the organic electroluminescent device.

[0018] In this embodiment, the wavelength refers to the distance between consecutive points with the same phase when the wave propagates in space.

[0019] In this embodiment, intensity refers to the amount of energy carried by light waves or other forms of wave motion.

[0020] In this embodiment, the incident light refers to the light irradiated onto the object to be measured.

[0021] In this embodiment, the organic electroluminescent device is an electronic device that uses organic materials as a light-emitting layer and excites organic molecules or polymers to emit light through electric current.

[0022] In this embodiment, the current-voltage characteristic curve is a curve describing the current variation relationship of an electrical component under different voltages.

[0023] In this embodiment, the photoelectric transfer efficiency analysis result is a result of evaluating the current and photoelectric conversion efficiency of the organic electroluminescent device (OLED) under the excitation of an external light source.

[0024] In this embodiment, the reflection spectrum refers to the intensity distribution of light reflected from the surface of the organic electroluminescent device at different wavelengths.

[0025] In this embodiment, chromaticity is a parameter used to describe the light source or the color of light, and includes two indicators: hue and saturation. Hue refers to the type of color, and saturation refers to the purity of the color.

[0026] In this embodiment, the luminous efficiency analysis result refers to the result of evaluating the luminous efficiency of the organic electroluminescent device to be tested by spectral analysis.

[0027] In this embodiment, the variable temperature test is a method for testing and analyzing the performance changes of a device at different temperatures by changing the temperature conditions.

[0028] In this embodiment, the life analysis result is a prediction of the aging and failure modes that may occur in the organic electroluminescent device during long-term use through a series of tests and data processing.

[0029] In this embodiment, the performance parameter report is a document for comprehensive performance evaluation of the organic electroluminescent device to be tested, which analyzes and integrates data collected from multiple modules and ultimately presents the performance of the device under various working conditions.

[0030] The working principle and beneficial effects of the above technical solution are: through modules such as light source excitation, photoelectric response acquisition, spectral analysis, and life prediction, the performance of organic electroluminescent devices, including current-voltage characteristics, luminous efficiency, and predicted life, is monitored and analyzed in real time, and a comprehensive performance report is finally output to achieve efficient and accurate performance evaluation and optimization.

[0031] Embodiment 2: Based on the above embodiment 1, the light source excitation module includes: Target determination unit: selects a matching organic electroluminescent device as a detection object according to preset standards; Light source excitation device unit: using a laser light source with adjustable intensity as a light source emitting device, configuring an optical filter as a wavelength control device, and configuring a light source excitation device; Based on the light source excitation device, the incident light is emitted into the organic electroluminescent device to be tested at a preset angle, and the reflected light signal is collected.

[0032] In this embodiment, the preset standard refers to a specific standard and specification used to select and evaluate the device to be tested during the test of the organic electroluminescent device.

[0033] In this embodiment, the laser light source is a device that can generate highly concentrated monochromatic light, and usually uses a laser medium (such as a solid, gas or semiconductor material) to generate light through an excitation and stimulated radiation process.

[0034] In this embodiment, the optical filter is a light source that produces highly concentrated monochromatic light through a process of excitation and stimulated emission.

[0035] In this embodiment, the preset angle refers to the incident angle between the light beam emitted by the laser light source and the organic electroluminescent device to be tested.

[0036] In this embodiment, the reflected light signal refers to the fact that when a light source is emitted into the organic electroluminescent device to be tested, part of the light is reflected on the surface of the device.

[0037] The working principle and beneficial effects of the above technical solution are: the organic electroluminescent device to be tested is selected through the target determination unit, the wavelength is controlled by using an adjustable laser light source and an optical filter, the incident light is incident at a preset angle and the reflected light signal is collected to achieve accurate organic electroluminescent device detection and performance analysis.

[0038] Embodiment 3: On the basis of the above-mentioned embodiment 1, the light source excitation module transmits the excitation light uniformly to the surface of the organic electroluminescent device to be tested through the optical fiber coupler.

[0039] In this embodiment, the fiber coupler is an optical device used to connect an optical fiber with other optical devices (such as a light source, an optical instrument, a detector, etc.).

[0040] The working principle and beneficial effects of the above technical solution are: the excitation light is uniformly transmitted to the surface of the organic electroluminescent device to be tested through the optical fiber coupler, ensuring the uniformity of light source excitation, improving test accuracy, optimizing photoelectric response collection, and improving the accuracy and reliability of performance analysis.

[0041] Embodiment 4: Based on the above embodiment 1, the photoelectric response acquisition module includes: Preprocessing unit: collects the reflected light signal of the organic electroluminescent device to be tested, uses a filter to remove noise, obtains a first light signal, and performs calibration processing based on the standard light source calibration spectrometer response function to obtain a standard light signal, specifically: ; in, Represents the standard optical signal, represents the response function of the standard light source calibrated spectrometer, represents the first optical signal, Indicates wavelength.

[0042] In this embodiment, the filter removes noise from the reflected light signal, thereby obtaining a purer first light signal.

[0043] In this embodiment, the first optical signal refers to the collected original reflected optical signal, which is a signal after noise is removed by a filter.

[0044] In this embodiment, the standard light source calibration spectrometer response function is an important function that describes the response characteristics of the spectrometer and is used to correct the response of the spectrometer to light signals of different wavelengths so that the measurement results can more accurately reflect the real light intensity and spectral characteristics.

[0045] In this embodiment, the standard light signal is a signal that has been calibrated, the purpose of which is to eliminate the nonlinearity of the spectrometer response and other system errors, so as to accurately reflect the actual reflected light intensity of the organic electroluminescent device to be tested.

[0046] The working principle and beneficial effects of the above technical solution are: removing noise through filters, collecting reflected light signals and calibrating with standard light sources, ensuring the accuracy and consistency of spectral data, improving the reliability of measurement results, and effectively improving the accuracy of photoelectric performance evaluation.

[0047] Embodiment 5: On the basis of the above-mentioned embodiment 4, the photoelectric response acquisition module includes: Current acquisition unit: under the condition of incident light, a linear scanning voltage is applied to the organic electroluminescent device to be tested, and the current signal is collected in real time, and the corresponding signal is obtained after preprocessing; Current-voltage characteristic curve unit: Based on the current acquisition unit, the current-voltage characteristic curve is constructed as follows: ; in, Indicates voltage corresponding to current, represents the reverse saturation current, q represents the electron charge, n represents the ideal factor, k represents the Boltzmann constant, T represents the average temperature, represents the photogenerated current, represents the threshold voltage, A represents the proportionality coefficient, and m represents the nonlinear index; Transmission efficiency unit: Based on the current-voltage characteristic curve, the light output per unit injected current is calculated as: ; in, represents the photoelectric transmission efficiency, Indicates the angle of incidence The light intensity, Represents the area of ​​the luminous region, represents the solid angle of the integration interval; The photoelectric transmission efficiency analysis result of the organic electroluminescent device to be tested under the condition of the current-voltage characteristic curve is obtained.

[0048] In this embodiment, the linear scanning voltage refers to that the voltage applied to the organic electroluminescent device to be tested in the experiment changes linearly with time.

[0049] In this embodiment, the reverse saturation current refers to that in a diode, a transistor or other similar device, when a negative voltage is applied, the current hardly increases and reaches a saturation value.

[0050] In this embodiment, the electron charge refers to the basic charge carried by a single electron, and its value is a constant.

[0051] In this embodiment, photogenerated current refers to the current generated under the action of an external electric field when the energy of photons excites electrons in a material or device to transition from the valence band to the conduction band, forming electron-hole pairs.

[0052] In this embodiment, the threshold voltage refers to the minimum voltage value at which the current begins to increase significantly. When the applied voltage reaches a certain critical point, the device begins to conduct electricity and shows obvious light emission or current response.

[0053] The working principle and beneficial effects of the above technical solution are: obtaining the current signal through linear scanning voltage, constructing the current-voltage characteristic curve, and calculating the photoelectric transmission efficiency based on the curve, accurately analyzing the electro-optical conversion performance of the organic electroluminescent device, and improving the accuracy and reliability of the device efficiency evaluation.

[0054] Embodiment 6: Based on the above embodiment 5, the spectrum analysis module includes: Chromaticity analysis unit: calculates the chromaticity coordinates of the organic electroluminescent device to be tested through the reflection spectrum and color matching function; After the organic electroluminescent device to be tested emits light for a predetermined time, the chromaticity shift is calculated as: ; in, Indicates the chromaticity deviation of the organic electroluminescent device to be tested, represents the i-th initial x-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the x-direction chromaticity coordinate of the ith light-emitting predetermined time of the organic electroluminescent device to be tested, represents the i-th initial y-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the y-direction chromaticity coordinate of the i-th predetermined light emission time of the organic electroluminescent device to be tested, and N represents that the organic electroluminescent device to be tested has a total of N chromaticity coordinates; Luminous efficiency calculation unit: apply bias voltage to the organic electroluminescent device to be tested, obtain the response current according to the current-voltage characteristic curve, and combine the standard light signal to obtain the luminous efficiency: ; in, represents the luminous efficiency under bias voltage V, represents the response current, represents the maximum wavelength, represents the minimum wavelength, represents the standard optical signal based on the bias voltage V, represents the error adjustment function; The chromaticity change result and the luminous efficiency constitute the luminous efficiency analysis result of the organic electroluminescent device to be tested.

[0055] In this embodiment, the color matching function is a function that describes the response characteristics of the human eye to light of different wavelengths, and is used to represent how the eye perceives the intensity of the three primary colors of red, green, and blue at a specific wavelength. The reflection spectrum and the color matching function are obtained by multiplying the matrix of the three primary colors of red, green, and blue with the pixel value of the pixel point of the reflection spectrum to obtain the chromaticity coordinates of the pixel point.

[0056] In this embodiment, the chromaticity coordinates are parameters used to indicate the position of the color of light in the chromaticity diagram.

[0057] In this embodiment, the predetermined light emission time refers to a time interval set when testing the organic electroluminescent device to be tested, during which the device will continue to emit light and stabilize its performance.

[0058] In this embodiment, the chromaticity shift refers to the degree to which the chromaticity coordinates (chromaticity coordinates in the x and y directions) of the device change after the organic electroluminescent device emits light for a certain period of time.

[0059] In this embodiment, the bias voltage refers to a fixed voltage applied in an electronic device to control the flow of current.

[0060] In this embodiment, the response current refers to a current caused by an externally applied voltage (bias voltage) in the organic electroluminescent device.

[0061] In this embodiment, the luminous efficiency refers to the light output that can be generated by the organic electroluminescent device under unit power when a voltage is applied.

[0062] In this embodiment, the error adjustment function is a mathematical function used to correct or adjust factors such as measurement error, experimental environment error, incomplete sensor response or incomplete model assumption.

[0063] The working principle and beneficial effects of the above technical solution are: the solution accurately evaluates the chromaticity change and luminous efficiency of organic electroluminescent devices through chromaticity analysis and luminous efficiency calculation, and provides accurate photoelectric performance analysis by combining the current-voltage characteristic curve, chromaticity offset and light signal, which helps to optimize device design and performance evaluation.

[0064] Embodiment 7: Based on the above embodiment 1, the life prediction module includes: Life unit: Based on the variable temperature control device, the low temperature threshold and the high temperature threshold are configured, and the life and activation energy model of the organic electroluminescent device to be tested is obtained as follows: ; in, Indicates the life of the organic electroluminescent device to be tested, Indicates the reference temperature of the organic electroluminescent device to be tested The life span of represents the activation energy of the organic electroluminescent device to be tested, represents the Boltzmann constant, M represents the number of temperature change cycles; Indicates the current temperature of the organic electroluminescent device to be tested; The activation energy of the organic electroluminescent device to be tested is obtained through historical experimental data, and a model of life and activation energy is fitted. The life is predicted according to the number of temperature change cycles, and the life analysis result of the organic electroluminescent device to be tested is obtained.

[0065] In this embodiment, the variable temperature control device is a device used to accurately control temperature changes and maintain a certain temperature range.

[0066] In this embodiment, the low temperature threshold refers to the lowest temperature limit set by the variable temperature control device when performing a temperature cycle test.

[0067] In this embodiment, the high temperature threshold refers to the maximum temperature limit set by the variable temperature control device when performing a temperature cycle test.

[0068] In this embodiment, the historical experimental data refers to data collected in past experiments on the performance, temperature change, number of cycles, aging, etc. of the organic electroluminescent device to be tested.

[0069] The working principle and beneficial effect of the above technical solution are: through variable temperature control equipment, combined with historical experimental data and activation energy model, the life of organic electroluminescent devices is predicted. Through temperature changes and cycle times, the life of the device is accurately evaluated, providing a basis for performance optimization and reliability testing.

[0070] Embodiment 8: Based on the above embodiment 1, the data processing module includes: Summary unit: obtain the photoelectric transmission efficiency analysis results, luminous efficiency analysis results and life analysis results of the organic electroluminescent device to be tested, and display the corresponding performance analysis results in the form of tables and curve graphs; Based on the standard report format, all performance analysis results and images are summarized to generate a formal performance parameter report.

[0071] In this embodiment, the standard report format is a fixed report writing method that complies with certain specifications, including specific structure, content and layout requirements to ensure that the report content is complete, clear and easy to understand.

[0072] The working principle and beneficial effects of the above technical solution are: by summarizing the analysis results of photoelectric transmission efficiency, luminous efficiency and life span, the performance data is displayed in the form of tables and graphs, and a standardized performance parameter report is generated, providing a comprehensive and intuitive performance evaluation of organic electroluminescent devices, which is convenient for optimization and decision-making.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An organic electroluminescent device detection system, characterized in that: include: Light source excitation module: used to provide incident light with adjustable wavelength and intensity to the organic electroluminescent device to be tested; Photoelectric response acquisition module: real-time monitoring of the current-voltage characteristic curve of the organic electroluminescent device under the incident light to obtain the photoelectric transmission efficiency analysis result; Spectral analysis module: used to collect the reflection spectrum of the organic electroluminescent device to be tested and analyze the chromaticity to obtain the luminous efficiency analysis results; Life prediction module: used to collect and analyze the predicted life of the organic electroluminescent device to be tested through variable temperature testing to obtain life analysis results; Data processing module: receives the analysis results of each module and outputs the performance parameter report of the organic electroluminescent device.

2. An organic electroluminescent device detection system according to claim 1, characterized in that: The light source excitation module comprises: Target determination unit: selects a matching organic electroluminescent device as a detection object according to preset standards; Light source excitation device unit: using a laser light source with adjustable intensity as a light source emitting device, configuring an optical filter as a wavelength control device, and configuring a light source excitation device; Based on the light source excitation device, the incident light is emitted into the organic electroluminescent device to be tested at a preset angle, and the reflected light signal is collected.

3. The organic electroluminescent device detection system according to claim 1, characterized in that: The light source excitation module transmits the excitation light uniformly to the surface of the organic electroluminescent device to be tested through the optical fiber coupler.

4. The organic electroluminescent device detection system according to claim 1, characterized in that: The photoelectric response acquisition module comprises: Preprocessing unit: collects the reflected light signal of the organic electroluminescent device to be tested, uses a filter to remove noise, obtains a first light signal, and performs calibration processing based on the standard light source calibration spectrometer response function to obtain a standard light signal, specifically: ； in, Represents the standard optical signal, represents the response function of the standard light source calibrated spectrometer, represents the first optical signal, Indicates wavelength.

5. An organic electroluminescent device detection system according to claim 4, characterized in that: The photoelectric response acquisition module comprises: Current acquisition unit: under the condition of incident light, a linear scanning voltage is applied to the organic electroluminescent device to be tested, and the current signal is collected in real time, and the corresponding signal is obtained after preprocessing; Current-voltage characteristic curve unit: Based on the current acquisition unit, the current-voltage characteristic curve is constructed as follows: ； in, Indicates voltage corresponding to current, represents the reverse saturation current, q represents the electron charge, n represents the ideal factor, k represents the Boltzmann constant, T represents the average temperature, represents the photogenerated current, represents the threshold voltage, A represents the proportionality coefficient, and m represents the nonlinear index; Transmission efficiency unit: Based on the current-voltage characteristic curve, the light output per unit injected current is calculated as: ； in, represents the photoelectric transmission efficiency, Indicates based on the incident angle The light intensity, Represents the area of ​​the luminous region, represents the solid angle of the integration interval; The photoelectric transmission efficiency analysis result of the organic electroluminescent device to be tested under the condition of the current-voltage characteristic curve is obtained.

6. The organic electroluminescent device detection system according to claim 5, characterized in that: The spectrum analysis module comprises: Chromaticity analysis unit: calculates the chromaticity coordinates of the organic electroluminescent device to be tested through the reflection spectrum and color matching function; After the organic electroluminescent device to be tested emits light for a predetermined time, the chromaticity shift is calculated as: ； in, Indicates the chromaticity deviation of the organic electroluminescent device to be tested, represents the i-th initial x-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the x-direction chromaticity coordinate of the ith light-emitting predetermined time of the organic electroluminescent device to be tested, represents the i-th initial y-direction chromaticity coordinate of the organic electroluminescent device to be tested, represents the y-direction chromaticity coordinate of the i-th predetermined light emission time of the organic electroluminescent device to be tested, and N represents that the organic electroluminescent device to be tested has a total of N chromaticity coordinates; Luminous efficiency calculation unit: apply bias voltage to the organic electroluminescent device to be tested, obtain the response current according to the current-voltage characteristic curve, and combine the standard light signal to obtain the luminous efficiency: ； in, represents the luminous efficiency under bias voltage V, represents the response current, represents the maximum wavelength, represents the minimum wavelength, represents the standard optical signal based on the bias voltage V, represents the error adjustment function; The chromaticity change result and the luminous efficiency constitute the luminous efficiency analysis result of the organic electroluminescent device to be tested.

7. The organic electroluminescent device detection system according to claim 1, characterized in that: The life prediction module comprises: Life unit: Based on the variable temperature control device, the low temperature threshold and the high temperature threshold are configured, and the life and activation energy model of the organic electroluminescent device to be tested is obtained as follows: ； in, Indicates the life of the organic electroluminescent device to be tested, Indicates the reference temperature of the organic electroluminescent device to be tested The life span of represents the activation energy of the organic electroluminescent device to be tested, represents the Boltzmann constant, M represents the number of temperature change cycles; Indicates the current temperature of the organic electroluminescent device to be tested; The activation energy of the organic electroluminescent device to be tested is obtained through historical experimental data, and a model of life and activation energy is fitted. The life is predicted according to the number of temperature change cycles, and the life analysis result of the organic electroluminescent device to be tested is obtained.

8. The organic electroluminescent device detection system according to claim 1, characterized in that: The data processing module comprises: Summary unit: obtain the photoelectric transmission efficiency analysis results, luminous efficiency analysis results and life analysis results of the organic electroluminescent device to be tested, and display the corresponding performance analysis results in the form of tables and curve graphs; Based on the standard report format, all performance analysis results and images are summarized to generate a formal performance parameter report.

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