Diaphragm auxiliary detection device and performance detection system

Abstract

The application relates to a diaphragm auxiliary detection device and a performance detection system. The diaphragm auxiliary detection device comprises a reflecting plate, a diaphragm plate attached above the reflecting plate and a light source component arranged in a containing groove opened below the reflecting plate; the reflecting plate is provided with a light outlet hole, the diaphragm plate is provided with a diaphragm hole, and an adhesive is filled between the reflecting plate and the light source component; light emitted by a light source of the light source component is reflected to a diaphragm to be detected placed on the diaphragm hole through the adhesive, the light outlet hole and the diaphragm hole. The application solves the technical problems that the existing diaphragm performance detection technology is difficult to dynamically track diaphragm production changes, influences detection stability and is low in detection precision.

Description

Technical Field

[0001] This application relates to the field of digital tube technology, and in particular to a diaphragm-assisted testing device and a performance testing system. Background Technology

[0002] As a core component of electronic display devices, the optical performance (transmittance, color uniformity) of the digital tube film directly affects the display effect and user experience. Currently, traditional testing techniques for film optical performance have many limitations. First, transmittance testing mainly relies on spectrophotometers or haze meters, requiring fixed samples for single-point measurement, making it difficult to dynamically track real-time changes during the production process, such as temperature fluctuations, material thickness differences, and the ratio of transparent inks and phosphors. Furthermore, existing equipment is susceptible to ambient light, light source attenuation, and detector drift, leading to accumulated testing errors and affecting stability. Simultaneously, most testing devices lack color compensation mechanisms, focusing only on transmittance optimization, resulting in multiple batches of films exceeding color difference standards. Existing compensation methods are mostly based on static calibration, unable to adapt to dynamic factors such as material aging and changes in environmental temperature and humidity, affecting long-term testing stability.

[0003] With the increasing demands for display effects and appearance from industries such as home appliances, automobiles, and medical devices, the brightness and color of digital tubes require precise control. Due to limitations in light source chip size and epoxy resin potting compound ratio, the film becomes crucial for adjusting photoelectric parameters. Therefore, strict control over film transmittance and color stability is necessary during production and incoming material inspection. Currently, digital tube films on the market mainly include non-transparent substrates (such as dark blue and milky white), printed colored light-transmitting areas (such as red, blue, green, and chocolate), and types printed with phosphors for blue light to white light conversion, all of which require precise testing and compensation optimization. Utility Model Content

[0004] This application provides a membrane auxiliary testing device and a performance testing system to solve the technical problems of existing membrane performance testing technologies, which are unable to dynamically track changes in membrane production, affecting testing stability and resulting in low testing accuracy.

[0005] In a first aspect, this application provides a diaphragm-assisted testing device, including a reflector, a diaphragm plate attached above the reflector, and a light source component disposed in a receiving groove below the reflector; the reflector has a light-emitting hole, the diaphragm plate has a diaphragm hole, and an adhesive is filled between the reflector and the light source component; the light emitted by the light source component is reflected through the adhesive, the light-emitting hole, and the diaphragm hole to the diaphragm to be tested placed on the diaphragm hole.

[0006] As an alternative example, the adhesive described above is an epoxy resin adhesive.

[0007] As an alternative example, the light source is soldered to one side of the printed circuit board of the light source component by means of solder paste soldering or die bonding wire bonding.

[0008] As an alternative example, the above-mentioned light source is packaged in one of the following ways: surface mount, flip-chip, or conventional mounting.

[0009] As an alternative example, the color of the light source mentioned above is the color of visible light.

[0010] As an alternative example, pins are provided on the other side of the printed circuit board, and the pins are inserted into the printed circuit board through pin holes on the printed circuit board with an interference fit, and the pins are connected to the power supply.

[0011] As an alternative example, the number of the aforementioned light source, the aforementioned diaphragm aperture, the aforementioned light-emitting aperture, and the aforementioned pin are the same and there is at least one.

[0012] Secondly, this application provides a diaphragm performance testing system, including a spectral measurement device and the above-mentioned diaphragm auxiliary testing device, wherein the spectral measurement device is used to measure the chromaticity parameters of the light source of the above-mentioned diaphragm auxiliary testing device.

[0013] Thirdly, this application provides a method for testing membrane performance, applied to the aforementioned membrane performance testing system, comprising: measuring a first chromaticity parameter of a membrane auxiliary testing device after the light source of the membrane to be tested is illuminated using a spectral measuring device, wherein the first chromaticity parameter includes a first photometric parameter, a first X-color coordinate value, and a first Y-color coordinate value, and the photometric parameter is any one of a luminance value, a luminous flux value, and an illuminance value; measuring a second chromaticity parameter of a membrane auxiliary testing device without the membrane to be tested after the light source is illuminated using the aforementioned spectral measuring device, wherein the second chromaticity parameter includes a second photometric parameter, a second X-color coordinate value, and a second Y-color coordinate value; and calculating performance parameters of the membrane to be tested based on the first chromaticity parameter and the second chromaticity parameter, wherein the performance parameters include a photometric compensation coefficient, an X-color coordinate compensation coefficient, and a Y-color coordinate compensation coefficient.

[0014] As an optional example, the calculation of the performance parameters of the film under test based on the first chromaticity parameter and the second chromaticity parameter includes: when the first chromaticity parameter is a first luminance value and the second chromaticity parameter is a second luminance value, calculating a first ratio of the first luminance value to the second luminance value, and determining the first ratio as the chromaticity compensation coefficient of the film under test; when the first chromaticity parameter is a first illuminance value and the second chromaticity parameter is a second illuminance value, calculating a third ratio of the first illuminance value to the second illuminance value, and determining the third ratio as the chromaticity compensation coefficient of the film under test. The photometric compensation coefficient of the film; when the first photometric parameter is a first luminous flux value and the second photometric parameter is a second luminous flux value, a second ratio of the first luminous flux value to the second luminous flux value is calculated, and the second ratio is determined as the photometric compensation coefficient of the film under test; a first difference between the first X-color coordinate value and the second X-color coordinate value is calculated, and the first difference is determined as the X-color coordinate compensation coefficient of the film under test; a second difference between the first Y-color coordinate value and the second Y-color coordinate value is calculated, and the second difference is determined as the Y-color coordinate compensation coefficient of the film under test.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art:

[0016] This application employs a light source component comprising a reflector, a diaphragm plate attached above the reflector, and a receiving groove disposed below the reflector. The reflector has a light-emitting aperture, the diaphragm plate has a diaphragm hole, and an adhesive is used to seal the reflector and the light source component. Light emitted from the light source component is reflected through the adhesive, the light-emitting aperture, and the diaphragm hole to a diaphragm under test placed on the diaphragm hole. Because the light path is optimized by the reflector and adhesive in the diaphragm auxiliary testing device, reducing light source attenuation, it can assist in measuring the chromaticity parameters of whether the diaphragm under test is placed, thereby testing the performance parameters of the diaphragm under test. This achieves the goal of accurately measuring the optical properties of the diaphragm while dynamically tracking changes in diaphragm production, improving testing accuracy, and thus solving the technical problems of existing diaphragm performance testing technologies, which struggle to dynamically track changes in diaphragm production, affecting testing stability and resulting in low testing accuracy. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of an optional membrane-assisted detection device according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of an optional membrane-assisted detection device according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram illustrating the relationship between current and photometric intensity in an optional membrane-assisted detection device according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of an optional membrane performance testing system according to an embodiment of this application;

[0024] Figure 5 This is a flowchart of an optional membrane performance testing method according to an embodiment of this application.

[0025] Among them, the reflector is 1; the diaphragm is 2; the light source component is 3; the adhesive is 4; the diaphragm to be tested is 5; the light output hole is 11; the diaphragm hole is 21; the light source is 31; the printed circuit board is 32; and the pin is 33. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0028] According to a first aspect of the embodiments of this application, a membrane-assisted detection device is provided, optionally, as follows: Figure 1 and Figure 2 As shown, the above-mentioned membrane-assisted detection device includes:

[0029] The reflector 1, the diaphragm 2 attached above the reflector 1, and the light source component 3 disposed in the receiving groove below the reflector 1;

[0030] The reflector 1 is provided with a light-emitting hole 11, the diaphragm plate 2 is provided with a diaphragm hole 21, and the reflector 1 and the light source component 3 are sealed with adhesive 4.

[0031] The light emitted by the light source 31 of the light source component 3 is reflected by the adhesive 4, the light outlet 11 and the diaphragm hole 21 to the diaphragm 5 placed on the diaphragm hole 21.

[0032] Optionally, in this embodiment, the diaphragm auxiliary testing device can be used to assist in the testing of the performance of the digital tube diaphragm, and the diaphragm to be tested can be the digital tube diaphragm.

[0033] like Figure 1 and Figure 2 The schematic diagram of the diaphragm-assisted testing device shown illustrates its structure. The device mainly consists of a reflector plate 1, a diaphragm plate 2, and a light source component 3. This ensures that the light emitted by the light source 31 of the light source component 3 can stably pass through the diaphragm 5 placed on the diaphragm hole 21, assisting in the measurement of the chromaticity parameters of the light source 31. The reflector plate 1, as the main supporting part of the diaphragm-assisted testing device, has a light-emitting hole 11 to guide the light emitted by the light source component 3 upwards through the diaphragm 5. The diaphragm plate 2 is attached above the reflector plate 1 and has a diaphragm hole 21, ensuring that the light can directly act on the diaphragm 5 and fixing it to maintain stability and prevent deviation, ensuring measurement consistency. The light source component 3 is located in a receiving groove below the reflector plate 1 and is connected to a power supply. The light emitted by the light source 31 undergoes multiple transmissions and reflections before finally acting on the diaphragm 5. The adhesive 4 is used to seal between the reflector 1 and the light source component 3, which serves to fix and protect the light source component 3, and also helps with the conduction and reflection of light, ensuring the stability of the light source component 3 and the effective conduction of light.

[0034] The fabrication process of the diaphragm-assisted testing device is as follows: First, the light-emitting port 11 of the reflector 1 is sealed with special adhesive tape. Then, adhesive 4 is poured into the receiving groove of the reflector 1, and the light source component 3 is inserted into the receiving groove of the reflector 1. After the adhesive 4 has cured, the special adhesive tape at the light-emitting port of the reflector 1 is removed. Finally, the diaphragm plate 2 is attached to the other side of the reflector 1. When it is necessary to perform performance testing on the diaphragm 5 to be tested, simply place the diaphragm 5 to be tested in the diaphragm hole 21 on the diaphragm plate 2.

[0035] The auxiliary testing principle of the membrane-assisted testing device: The membrane's performance parameters include the photometric compensation coefficient, X-coordinate compensation coefficient, and Y-coordinate compensation coefficient. The photometric compensation coefficient is calculated from the photometric parameters of the digital tube before and after the membrane is applied. The photometric parameters can be any one of the luminance, luminous flux, and illuminance values. The X-coordinate compensation coefficient is calculated from the X-coordinate values ​​of the digital tube before and after the membrane is applied, and the Y-coordinate compensation coefficient is calculated from the Y-coordinate values ​​of the digital tube before and after the membrane is applied. The membrane-assisted testing device illuminates the digital tube before and after the membrane is applied, and then a spectral measurement device measures the photometric parameters (any one of the luminance, luminous flux, and illuminance values), X-coordinate values, and Y-coordinate values ​​of the illuminated digital tube. Taking the luminance value as an example, when performing performance testing on the diaphragm 5 under test, assuming the specifications require the digital tube to be attached to the diaphragm 5, and the luminance value at the specified test point (diaphragm hole 21) under constant current 10mA mode is 30mcd±15%, the X color coordinate is 0.3100±0.02, and the Y color coordinate is 0.3000±0.02. First, place the diaphragm 5 under test in the diaphragm hole 21, connect the constant current power supply, set the current stabilization mode, and after setting the current value to constant current 10mA, light source 31 is lit for 30 to 60 seconds. After ensuring that the lit light source 31 is stable, the chromaticity parameters of light source 31 attached to the diaphragm 5 under test are measured using a spectral measurement device, including the luminance value, X color coordinate value, and Y color coordinate value, for example, 30mcd, 0.3100, and 0.3000 respectively. Then disconnect the power supply, remove the test film 5, and measure the chromaticity parameters of the light source 31 without the test film 5 attached, for example, 40mcd, 0.2800 and 0.2600 respectively, according to the above steps. Finally, the performance parameters of the test film 5 are calculated based on the two measured chromaticity parameters, including the photometric compensation coefficient, the X-coordinate compensation coefficient, and the Y-coordinate compensation coefficient. Specifically, the luminance value of the test film 5 with the light source 31 attached (30 mcd) is compared with the luminance value of the test film 5 without the light source 31 attached (40 mcd), i.e., 30 mcd / 40 mcd = 0.75, to obtain the photometric compensation coefficient of the test film 5. This coefficient is a relative coefficient calculated by the fixed dimensions of the light-emitting hole 11 fixed by the reflector 1 and the film hole 21 fixed by the test film 5. In this case, the photometric compensation coefficient is calculated based on the two measured luminance values. If the luminous flux value is measured using a spectral measuring device, the photometric compensation coefficient is calculated based on the two measured luminous flux values. If the illuminance value is measured using a spectral measuring device, the photometric compensation coefficient is calculated based on the two measured illuminance values. The X-color coordinate compensation coefficient of the membrane 5 under test is obtained by subtracting the X-color coordinate value of the membrane 5 under test (0.3100) from the X-color coordinate value of the membrane 5 under test (0.2800) when the light source 31 is not attached to the membrane 5.The Y-coordinate compensation coefficient of the film 5 under test is obtained by subtracting the Y-coordinate value of the film 5 under test (0.2600) from the Y-coordinate value of the film 5 under test (0.3000) without the light source 31 attached to it, i.e., 0.3000 - 0.2600 = 0.0400. Different spectral measurement devices may use different units when measuring luminance, including luminance (mcd), illuminance (Lux), and luminous flux (lm). However, regardless of the spectral measurement device used, the X-coordinate and Y-coordinate values ​​of the film can be directly obtained and are not affected by the device. The photometric compensation coefficient can be calculated based on any one of luminance (mcd), illuminance (Lux), or luminous flux (lm). Specifically: luminance (mcd) is usually used for measuring point light sources or small-area light sources, representing the luminous flux per unit solid angle; illuminance (Lux) represents the luminous flux received per unit area, Lux = lm / m. 2 Luminous flux (lm) represents the total amount of light emitted by a light source per second. When calculating the photometric compensation coefficient, a uniform compensation coefficient can be used regardless of the unit of the measuring equipment. This ensures the consistency and comparability of the measurement data, regardless of the unit used by the spectral measuring equipment. Based on the above testing principles, after specifying the photometric compensation coefficient, X-coordinate compensation coefficient, and Y-coordinate compensation coefficient for digital tubes with and without film, the actual values ​​can be calculated under specified test conditions during film production and inspection to determine whether they are within the specified range.

[0036] according to Figure 3 The diagram illustrating the relationship between current and luminance (brightness, luminous flux, and illuminance) specifies the driving current at designated test points. This standardizes the relationship between luminance parameters (brightness, luminous flux, and illuminance), X-coordinate values, and Y-coordinate values ​​during diaphragm manufacturing and internal testing, ensuring a proportional increase or decrease, thereby reducing testing errors. By defining these factors, regardless of the type of spectral measurement equipment used by the diaphragm manufacturer and internal testing, ensuring consistency in the measurement method each time will reduce measurement errors for both parties.

[0037] Optionally, in this embodiment, regardless of design changes or new designs, the requirement for digital tube diaphragms only requires providing the diaphragm manufacturer with a specified digital tube and inspection specifications. This allows for rapid sample delivery, while the diaphragm manufacturer can dynamically monitor the diaphragm deviation status during the production process by testing according to the above operating procedures. The diaphragm manufacturer only needs to provide the specified digital tube and inspection specifications for incoming material inspection to accurately perform tests, avoiding inconsistent testing between batches due to equipment not being calibrated regularly or temperature deviations, which could lead to raw materials not meeting specifications.

[0038] As an alternative example, the adhesive is an epoxy resin adhesive.

[0039] Optionally, in this embodiment, epoxy resin adhesive is used as the adhesive 4. The epoxy resin adhesive serves to fix and protect the light source component 3 during the potting process between the reflector 1 and the light source component 3, while also facilitating light transmission and reflection. By using epoxy resin adhesive, the bonding problem between the reflector 1 and the light source component 3 can be effectively solved, ensuring the stability of the light source component 3 and effective light transmission.

[0040] Optionally, epoxy resin adhesive is a common adhesive with excellent bonding properties, heat resistance, and chemical stability. In this embodiment, epoxy resin adhesive can be potted in various ways, such as manual potting or automated equipment potting. The selection of epoxy resin adhesive can be adjusted according to specific application requirements; for example, epoxy resin adhesives with different viscosities and curing times can be selected to adapt to different production processes and usage environments. Furthermore, different fillers or modifiers can be added to epoxy resin adhesive to further improve its performance, such as increasing thermal conductivity and improving weather resistance.

[0041] As an alternative example, the light source is soldered to one side of the printed circuit board of the light source component by solder paste soldering or die bonding wire bonding.

[0042] Optionally, in this embodiment, as Figure 1 and Figure 2 The schematic diagram of the diaphragm-assisted inspection device shows that the light source component 3 includes a light source 31 and a printed circuit board 32. The light source 31 is soldered to one side of the printed circuit board 32 by solder paste or die bonding. Soldering the light source 31 to the printed circuit board 32 of the light source component 3 by solder paste or die bonding ensures the stable installation of the light source 31, enabling it to reliably emit light, thereby improving the stability and accuracy of the diaphragm-assisted inspection device. Using solder paste or die bonding effectively avoids the instability factors that may arise from traditional soldering methods, ensuring the reliability and durability of the light source 31 during operation. Specifically, solder paste soldering is a common method for soldering electronic components. Solder paste containing tin is applied to the pads of the printed circuit board 32, and then heated to melt the paste, forming a strong solder joint. Die bonding involves soldering the pins of the light source 31 to the pads on the printed circuit board 32, typically using gold or aluminum wire as the soldering material, and forming a reliable electrical connection through thermoforming or ultrasonic welding. Both welding methods have high welding strength and good electrical conductivity, which can ensure the stability of the light source 31 during use.

[0043] As an alternative example, the light source can be packaged using one of the following methods: surface mount, flip-chip, or conventional mounting.

[0044] Optionally, in this embodiment, the light source 31 can be packaged using one of surface mount, flip-chip, or conventional mounting methods. By providing multiple packaging methods, the problem of a single packaging method for the light source 31 is solved, making the packaging method of the light source 31 more flexible and adaptable to different application requirements. Surface mount technology is a technology that directly mounts the light source 31 onto the surface 32 of the printed circuit board, which has advantages such as simple installation and small space occupation. Flip-chip technology mounts the light source 31 upside down on the surface 32 of the printed circuit board, which can effectively reduce the thermal resistance between the light source 31 and the surface 32 of the printed circuit board and improve heat dissipation. Conventional mounting technology mounts the light source 31 forward on the surface 32 of the printed circuit board, which has advantages such as stable installation and easy maintenance. By selecting different packaging methods, the most suitable packaging method can be selected according to specific application requirements.

[0045] As an alternative example, the color of the light source is the color of visible light.

[0046] Optionally, in this embodiment, the light source 31 is a visible light color. A visible light color light source 31 ensures stable and consistent light output during the detection process, thereby improving the accuracy and reliability of the detection. By using a visible light color light source 31, detection errors caused by inconsistent light source colors can be effectively avoided, ensuring the accuracy and repeatability of the film's optical performance detection. Specifically, a visible light color light source can be achieved in various ways. For example, a light-emitting diode (LED) can be used as the light source. An LED can emit different colors of visible light by adjusting its luminescent material and driving current. Alternatively, traditional light sources such as incandescent lamps or fluorescent lamps can be used, or laser diodes can be used as the light source; all of these light sources can produce stable visible light output.

[0047] As an alternative example, pins are provided on the other side of the printed circuit board, and the pins are inserted into the printed circuit board through pin holes on the printed circuit board with an interference fit, and the pins are connected to the power supply.

[0048] Optionally, in this embodiment, as Figure 1 and Figure 2The schematic diagram of the diaphragm-assisted detection device shows that pins 33 are provided on the other side of the printed circuit board 32. These pins are inserted into the printed circuit board 32 via interference fit through pin holes, achieving a reliable connection between the pins 33 and the printed circuit board 32. Pins 33 connect to the power supply, providing a stable power supply to the light source 31, thereby ensuring the normal operation of the light source 31 and ensuring a stable connection between the power supply and the light source 31. This avoids poor contact problems and improves the overall reliability and stability of the device. Pins 33 can be designed and manufactured in various ways. For example, standard metal pins can be used, or pins can be made of flexible materials to further improve the reliability of the connection. The design of the pin holes can also be adjusted according to the specific needs of the printed circuit board 32. For example, different hole diameters and shapes can be used to accommodate different types of pins. Pins 33 can also be fixed to the printed circuit board 32 by soldering, bonding, or other methods to ensure that they do not loosen or fall off during long-term use.

[0049] As an alternative example, the number of light source, diaphragm aperture, light emission aperture, and pins are the same and there is at least one.

[0050] Optionally, in this embodiment, the light source 31, membrane aperture 21, light emission aperture 11, and pin 33 form a group, which can assist in the detection of various membranes. Simply place the membrane in the designated membrane aperture 21 and connect the power supply through the corresponding pin 33 to illuminate the corresponding light source 31, thereby improving the detection accuracy and stability of the membrane auxiliary detection device for various membranes. By ensuring the consistency in the number of light sources 31, membrane aperture 21, light emission aperture 11, and pin 33, it is ensured that the light from each light source 31 can accurately pass through the corresponding membrane aperture 21 and light emission aperture 11, and be connected and controlled by the corresponding pin 33, thereby improving the detection accuracy and stability of the membrane auxiliary detection device.

[0051] According to a second aspect of the embodiments of this application, a diaphragm performance testing system is also provided, optionally, such as Figure 4 As shown, it includes:

[0052] The spectral measuring device 402 and the above-mentioned diaphragm-assisted detection device 404 are used to measure the chromaticity parameters of the light source of the diaphragm-assisted detection device 404.

[0053] Optionally, in this embodiment, the diaphragm performance testing system includes a spectral measurement device and a diaphragm auxiliary testing device. The spectral measurement device is used to measure the chromaticity parameters of the light source of the diaphragm auxiliary testing device before and after the diaphragm is attached, including photometric parameters (any one of luminance, luminous flux, and illuminance), X-coordinate values, and Y-coordinate values. This allows for accurate evaluation of the diaphragm's optical performance based on the measured chromaticity parameters. For the specific testing principle, please refer to the example above, which will not be repeated here. The diaphragm auxiliary testing device illuminates the light source before and after the diaphragm is attached, ensuring that the light from the light source can pass through the diaphragm so that the spectral measurement device can perform accurate measurements. In this way, the accuracy and stability issues of diaphragm optical performance testing can be effectively solved.

[0054] Spectroscopic measurement equipment provides accurate optical performance evaluations by measuring the chromaticity parameters of a light source. The chromaticity parameter measurement function of spectroscopic measurement equipment can be achieved through various technologies, such as the use of high-precision spectral sensors and colorimeters. The design of the membrane-assisted detection device ensures that light from the light source passes uniformly through the membrane, avoiding uneven reflection or refraction on the membrane surface, thereby improving the accuracy and stability of the detection. The combined use of the spectroscopic measurement equipment and the membrane-assisted detection device can maintain the consistency and reliability of the detection results under different environmental conditions.

[0055] As a preferred implementation, measuring the chromaticity parameters of the light source in the diaphragm-assisted testing device using a spectral measurement device can effectively compensate for testing errors caused by factors such as ambient light, light source attenuation, and detector drift. Furthermore, the spectral measurement device can dynamically adjust the testing parameters by monitoring the chromaticity parameters in real time to adapt to dynamic factors such as diaphragm material aging and changes in ambient temperature and humidity, thereby ensuring the stability and accuracy of long-term testing. This testing system can significantly improve the efficiency and reliability of diaphragm optical performance testing.

[0056] According to a third aspect of the embodiments of this application, a membrane performance testing method is also provided, applied to the above-described membrane performance testing system, optionally, as follows: Figure 5 As shown, it includes:

[0057] S502, the first chromaticity parameter of the membrane auxiliary detection device after the light source of the membrane to be tested is lit is measured by the spectral measurement device. The first chromaticity parameter includes the first photometric parameter, the first X color coordinate value and the first Y color coordinate value. The photometric parameter is any one of the luminance value, luminous flux value and illuminance value.

[0058] S504, the second chromaticity parameter of the membrane auxiliary detection device after the light source is lit when the membrane to be tested is not placed is measured by a spectral measurement device, wherein the second chromaticity parameter includes the second photometric parameter, the second X color coordinate value and the second Y color coordinate value;

[0059] S506, calculate the performance parameters of the film under test based on the first chromaticity parameter and the second chromaticity parameter, wherein the performance parameters include the photometric compensation coefficient, the X-color coordinate compensation coefficient and the Y-color coordinate compensation coefficient.

[0060] Optionally, in this embodiment, the chromaticity parameters of the light source are measured using a spectral measurement device when the film under test is placed and when it is not. The performance parameters of the film under test are then calculated based on these measurements. For the specific testing principle, please refer to the example above, which will not be repeated here. By measuring the chromaticity parameters of the light source under different conditions, the optical characteristics of the film in actual use can be accurately obtained. This allows for precise compensation using the calculated compensation coefficient, solving the problem of accurate measurement and compensation of chromaticity parameters in film optical performance testing. Dynamic measurement and calculation of the compensation coefficient can adapt to dynamic factors such as material aging and changes in environmental temperature and humidity, ensuring long-term stability of the test.

[0061] Specifically, the first chromaticity parameter of the membrane auxiliary detection device after the light source of the membrane under test is illuminated is measured using a spectral measurement device. This first chromaticity parameter includes a first photometric parameter, a first X-color coordinate value, and a first Y-color coordinate value. The photometric parameter can be any one of luminance, luminous flux, and illuminance. The second chromaticity parameter of the membrane auxiliary detection device after the light source of the membrane under test is illuminated (without the membrane under test) is measured using the same spectral measurement device. This second chromaticity parameter includes a second photometric parameter, a second X-color coordinate value, and a second Y-color coordinate value. The performance parameters of the membrane under test are calculated based on the first and second chromaticity parameters, including photometric compensation coefficients, X-color coordinate compensation coefficients, and Y-color coordinate compensation coefficients. Therefore, by dynamically measuring and calculating the compensation coefficients, the device can adapt to dynamic factors such as material aging and changes in environmental temperature and humidity, ensuring long-term stability of the detection. This solves the problems of accumulated detection errors and lack of chromaticity compensation mechanisms in traditional detection technologies, ensuring the accuracy and stability of membrane optical performance testing.

[0062] As an optional example, calculating the performance parameters of the film under test based on the first chromaticity parameter and the second chromaticity parameter includes:

[0063] When the first photometric parameter is the first brightness value and the second photometric parameter is the second brightness value, calculate the first ratio of the first brightness value to the second brightness value, and determine the first ratio as the photometric compensation coefficient of the film to be tested.

[0064] When the first photometric parameter is the first illuminance value and the second photometric parameter is the second illuminance value, calculate the third ratio of the first illuminance value to the second illuminance value, and determine the third ratio as the photometric compensation coefficient of the film to be tested.

[0065] When the first photometric parameter is the first luminous flux value and the second photometric parameter is the second luminous flux value, calculate the second ratio of the first luminous flux value to the second luminous flux value, and determine the second ratio as the photometric compensation coefficient of the film under test.

[0066] Calculate the first difference between the first X-color coordinate value and the second X-color coordinate value, and determine the first difference as the X-color coordinate compensation coefficient of the membrane to be tested;

[0067] Calculate the second difference between the first Y-coordinate value and the second Y-coordinate value, and determine the second difference as the Y-coordinate compensation coefficient of the diaphragm to be tested.

[0068] Optionally, in this embodiment, when the first chromaticity parameter of the membrane auxiliary detection device with the membrane under test placed on it, measured by the spectral measurement device, after being lit, is a first luminance value, and the second chromaticity parameter of the membrane auxiliary detection device without the membrane under test placed on it, measured by the spectral measurement device, after being lit, is a second luminance value, a first ratio of the first luminance value to the second luminance value is calculated, and the first ratio is determined as the photometric compensation coefficient of the membrane under test, used to adjust the luminance of the membrane. When the first chromaticity parameter of the membrane auxiliary detection device with the membrane under test placed on it, measured by the spectral measurement device, after being lit, is a first luminous flux value, and the second chromaticity parameter of the membrane auxiliary detection device without the membrane under test placed on it, measured by the spectral measurement device, after being lit, is a second luminous flux value, a second ratio of the first luminous flux value to the second luminous flux value is calculated, and the second ratio is determined as the photometric compensation coefficient of the membrane under test, used to adjust the luminous flux of the membrane. When the first chromaticity parameter of the membrane auxiliary detection device (with the membrane under test placed on it) is illuminated by the spectral measurement equipment, and the second chromaticity parameter of the membrane auxiliary detection device (without the membrane under test placed on it) is illuminated by the spectral measurement equipment, the third ratio of the first illuminance value to the second illuminance value is calculated. This third ratio is then determined as the photometric compensation coefficient for the membrane under test, used to adjust the illuminance of the membrane. Similarly, the first difference between the first and second X-color coordinate values ​​is calculated, and this first difference is determined as the X-color coordinate compensation coefficient for the membrane under test, used to adjust the X-color coordinates of the membrane. Likewise, the second difference between the first and second Y-color coordinate values ​​is calculated, and this second difference is determined as the Y-color coordinate compensation coefficient for the membrane under test. These compensation coefficients allow for precise adjustment of the membrane's brightness, luminous flux, illuminance, and chromaticity, thereby improving the accuracy and stability of the detection. Specifically, the calculation process of the photometric compensation coefficient, X-color coordinate compensation coefficient, and Y-color coordinate compensation coefficient can employ various algorithms, such as simple difference calculation or more complex weighted average algorithms, to adapt to different detection needs and conditions.

[0069] By introducing photometric compensation coefficients, X-coordinate compensation coefficients, and Y-coordinate compensation coefficients, the colorimetric compensation problem in membrane performance testing is solved. Precise compensation coefficients can adjust the membrane's brightness, luminous flux, illuminance, and colorimetry, significantly improving testing accuracy and stability and preventing color differences between multiple batches of membranes. Membrane manufacturers only need specified digital tubes and inspection specifications; by following the above operating procedures, they can dynamically monitor membrane deviations during production and perform accurate and rapid testing. This avoids inconsistent testing between batches due to untimely equipment calibration or temperature deviations, preventing raw materials from failing to meet specifications.

[0070] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

Claims

1. A membrane-assisted detection device, characterized in that, It includes a reflector, a diaphragm plate attached above the reflector, and a light source component disposed in a receiving groove below the reflector; The reflector is provided with a light-emitting hole, the diaphragm is provided with a diaphragm hole, and an adhesive is used to seal the reflector and the light source component; The light emitted by the light source component is reflected through the adhesive, the light-emitting hole, and the diaphragm hole to the diaphragm to be tested placed on the diaphragm hole.

2. The membrane-assisted detection device according to claim 1, characterized in that, The adhesive is an epoxy resin adhesive.

3. The membrane-assisted detection device according to claim 1, characterized in that, The light source is soldered to one side of the printed circuit board of the light source component by solder paste soldering or die bonding wire bonding.

4. The membrane-assisted detection device according to claim 3, characterized in that, The light source is packaged using one of the following methods: surface mount, flip-chip, or conventional mounting.

5. The membrane-assisted detection device according to claim 3, characterized in that, The color of the light source is the visible light color.

6. The membrane-assisted detection device according to claim 3, characterized in that, The other side of the printed circuit board has pins that are interference-fitted into the printed circuit board through pin holes and are connected to the power supply.

7. The membrane-assisted detection device according to claim 6, characterized in that, The number of the light source, the diaphragm aperture, the light emission aperture, and the pin are the same and there is at least one.

8. A diaphragm performance testing system, characterized in that, It includes a spectral measurement device and a membrane-assisted detection device as described in any one of claims 1 to 7, wherein the spectral measurement device is used to measure the chromaticity parameters of the light source of the membrane-assisted detection device.

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