Membrane auxiliary detection device and performance detection system and method

Abstract

The invention relates to a diaphragm auxiliary detection device and a performance detection system and method. The diaphragm auxiliary detection device comprises a reflecting plate, a diaphragm plate attached to the upper portion of the reflecting plate and a light source component arranged in a containing groove formed in the lower portion of 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 encapsulated between the reflecting plate and the light source component; and light emitted by a light source of the light source part is reflected to a to-be-detected diaphragm placed on the diaphragm hole through the adhesive, the light outlet hole and the diaphragm hole. The technical problems that an existing diaphragm performance detection technology is difficult to dynamically track diaphragm production changes, the detection stability is affected, and the detection precision is low are solved.

Description

Technical Field

[0001] The present application relates to the technical field of digital tubes, and in particular to a diaphragm auxiliary detection device, a performance detection system and a method. Background Art

[0002] Digital tubes are the core components of electronic display devices, and their diaphragm optical properties (light transmittance, color uniformity) directly affect the display effect and user experience. At present, the traditional detection technology for the optical properties of diaphragms has many limitations. First, the transmittance detection mainly relies on spectrophotometers or haze meters, which require fixed samples for single-point measurement, and it is difficult to dynamically track real-time changes in the production process, such as temperature fluctuations, material thickness differences, and translucent ink, phosphor ratio, etc. In addition, existing equipment is easily affected by ambient light, light source attenuation, and detector drift, resulting in the accumulation of detection errors and affecting stability. At the same time, most detection devices lack a chromaticity compensation mechanism and are only optimized for transmittance, resulting in multiple batches of diaphragm color differences exceeding the standard. Existing compensation methods are mostly based on static calibration and cannot adapt to dynamic factors such as material aging and changes in ambient temperature and humidity, affecting long-term detection stability.

[0003] As the requirements for display effects and appearance in the home appliance, automotive, and medical industries increase, the brightness and color of digital tubes need to be precisely controlled. Due to the limitations of light source grain size and epoxy resin potting ratio, the diaphragm becomes the key to adjusting optoelectronic parameters. Therefore, production and incoming material inspection need to strictly control the transmittance and color stability of the diaphragm. Currently on the market, digital tube diaphragms mainly include non-transparent substrates (such as dark blue and milky white), printed color translucent areas (such as red, blue, green, and chocolate), and printed phosphors for blue light to white light conversion, all of which require precise detection and compensation optimization. Summary of the invention

[0004] The present application provides a diaphragm auxiliary detection device, a performance detection system and a method to solve the technical problems that the existing diaphragm performance detection technology is difficult to dynamically track diaphragm production changes, affects detection stability, and has low detection accuracy.

[0005] In the first aspect, the present application provides a diaphragm-assisted detection device, comprising a reflective plate, a diaphragm plate attached to the above-mentioned reflective plate, and a light source component arranged in a receiving groove opened below the above-mentioned reflective plate; the above-mentioned reflective plate is provided with a light emitting hole, the above-mentioned diaphragm plate is provided with a diaphragm hole, and an adhesive is sealed between the above-mentioned reflective plate and the above-mentioned light source component; the light emitted by the light source of the above-mentioned light source component is reflected through the above-mentioned adhesive, the above-mentioned light emitting hole and the above-mentioned diaphragm hole to the diaphragm to be tested placed on the above-mentioned diaphragm hole.

[0006] As an optional example, the adhesive is epoxy resin glue.

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

[0008] As an optional example, the packaging method of the above light source is one of surface mounting, flip-chip and traditional face mounting.

[0009] As an optional example, the color of the light source is a visible light color.

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

[0011] As an optional example, the number of the light source, the diaphragm hole, the light exit hole and the pin is the same and is at least one.

[0012] In a second aspect, the present application provides a membrane performance detection system, including a spectrum measurement device and the above-mentioned membrane auxiliary detection device, wherein the above-mentioned spectrum measurement device is used to measure the chromaticity parameters of the light source of the above-mentioned membrane auxiliary detection device.

[0013] In a third aspect, the present application provides a diaphragm performance detection method, which is applied to the above-mentioned diaphragm performance detection system, including: measuring a first chromaticity parameter of a diaphragm auxiliary detection device where the diaphragm to be tested is placed after the light source is illuminated by a spectral measurement 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 brightness value, a luminous flux value, and an illuminance value; measuring a second chromaticity parameter of a diaphragm auxiliary detection device where the diaphragm to be tested is not placed after the light source is illuminated by the spectral measurement device, wherein the second chromaticity parameter includes a second photometric parameter, a second X color coordinate value, and a second Y color coordinate value; calculating the performance parameters of the diaphragm to be tested according to 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 above-mentioned calculation of the performance parameter of the film to be tested according to the above-mentioned first chromaticity parameter and the above-mentioned second chromaticity parameter includes: when the above-mentioned first photometric parameter is a first brightness value and the above-mentioned second photometric parameter is a second brightness value, calculating a first ratio of the above-mentioned first brightness value to the above-mentioned second brightness value, and determining the above-mentioned first ratio as the photometric compensation coefficient of the film to be tested; when the above-mentioned first photometric parameter is a first illumination value and the above-mentioned second photometric parameter is a second illumination value, calculating a third ratio of the above-mentioned first illumination value to the above-mentioned second illumination value, and determining the above-mentioned third ratio as the photometric compensation coefficient of the film to be tested. the luminance compensation coefficient of the film to be tested; when the first luminance parameter is the first luminous flux value and the second luminous flux value, calculating a second ratio of the first luminous flux value to the second luminous flux value, and determining the second ratio as the luminance compensation coefficient of the film to be tested; calculating a first difference between the first X color coordinate value and the second X color coordinate value, and determining the first difference as the X color coordinate compensation coefficient of the film to be tested; calculating a second difference between the first Y color coordinate value and the second Y color coordinate value, and determining the second difference as the Y color coordinate compensation coefficient of the film to be tested.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The present application adopts a diaphragm auxiliary detection device including a reflective plate, a diaphragm plate attached to the above-mentioned reflective plate, and a light source component arranged in a accommodating groove opened below the above-mentioned reflective plate; the above-mentioned reflective plate is provided with a light emitting hole, the above-mentioned diaphragm plate is provided with a diaphragm hole, and adhesive is filled between the above-mentioned reflective plate and the above-mentioned light source component; the light emitted by the light source of the above-mentioned light source component is reflected through the above-mentioned adhesive, the above-mentioned light emitting hole and the above-mentioned diaphragm hole to the diaphragm to be tested placed on the above-mentioned diaphragm hole. Since in the above-mentioned diaphragm auxiliary detection device, the optical path is optimized by the reflective plate and the adhesive to reduce the attenuation of the light source, the chromaticity parameters of whether the diaphragm to be tested is placed can be assisted to measure, and then the performance parameters of the diaphragm to be tested can be tested, thereby achieving the purpose of dynamically tracking the production changes of the diaphragm while accurately measuring the optical characteristics of the diaphragm, and improving the detection accuracy, thereby solving the technical problems that the existing diaphragm performance detection technology is difficult to dynamically track the production changes of the diaphragm, affecting the detection stability and low detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 is a schematic structural diagram of an optional membrane auxiliary detection device according to an embodiment of the present application;

[0021] Figure 2 is a schematic structural diagram of an optional membrane auxiliary detection device according to an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of the relationship between current and luminosity of an optional membrane-assisted detection device according to an embodiment of the present application;

[0023] Figure 4 is a schematic structural diagram of an optional diaphragm performance detection system according to an embodiment of the present application;

[0024] Figure 5 It is a flow chart of an optional diaphragm performance detection method according to an embodiment of the present application.

[0025] Among them, there are a reflector 1, a diaphragm plate 2, a light source component 3, an adhesive 4, a diaphragm to be tested 5, a light outlet hole 11, a diaphragm hole 21, a light source 31, a printed circuit board 32, and a pin 33. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] According to a first aspect of an embodiment of the present application, a membrane auxiliary detection device is provided, optionally, as Figure 1 and Figure 2 As shown, the above-mentioned membrane auxiliary detection device includes:

[0029] A reflector 1, a membrane plate 2 attached to the top of the reflector 1, and a light source component 3 disposed in a receiving groove opened below the reflector 1;

[0030] The reflector 1 is provided with a light exit hole 11, the membrane plate 2 is provided with a membrane hole 21, and an adhesive 4 is potted between the reflector 1 and the light source component 3;

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

[0032] Optionally, in this embodiment, the diaphragm auxiliary detection device can be used to perform auxiliary detection on the performance of the digital tube diaphragm, and the diaphragm to be tested can be a digital tube diaphragm.

[0033] like Figure 1 and Figure 2 The schematic diagram of the structure of the diaphragm auxiliary detection device shown in the figure, the structure of the diaphragm auxiliary detection device: mainly composed of a reflector 1, a diaphragm plate 2 and a light source component 3, to ensure that the light emitted after the light source 31 of the light source component 3 is lit can stably pass through the diaphragm 5 to be tested placed on the diaphragm hole 21, and assist in the measurement of the chromaticity parameters of the light source 31. The reflector 1, as the main supporting part of the diaphragm auxiliary detection device, is provided with a light outlet 11, which is used to guide the light emitted by the light source component 3 to penetrate the diaphragm 5 to be tested upward. The diaphragm plate 2 is attached to the top of the reflector 1 and has a diaphragm hole 21, which ensures that the light can directly act on the diaphragm 5 to be tested, and is responsible for fixing the diaphragm 5 to be tested, so that it remains stable and does not deviate, and ensures measurement consistency. The light source component 3 is arranged in a receiving groove below the reflector 1 and is connected to a power supply. The light emitted by the light source 31 is subjected to multiple transmissions and reflections, and finally acts on the diaphragm 5 to be tested. The adhesive 4 is potted between the reflector 1 and the light source component 3 , thereby fixing and protecting the light source component 3 , and also facilitating the conduction and reflection of light, thereby ensuring the stability of the light source component 3 and the effective conduction of light.

[0034] Preparation process of the diaphragm auxiliary detection device: First, the light outlet of the light outlet hole 11 of the reflector 1 is sealed with a special tape, then the 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 is cured, the special tape of the light outlet of the reflector 1 is torn off, and finally the diaphragm plate 2 is attached to the other side of the reflector 1. When the performance of the diaphragm 5 to be tested needs to be tested, it is only necessary to place the diaphragm 5 to be tested in the diaphragm hole 21 on the diaphragm plate 2.

[0035] The auxiliary test principle of the membrane auxiliary detection device: the performance parameters of the membrane include the photometric compensation coefficient, the X color coordinate compensation coefficient and the Y color coordinate compensation coefficient. The photometric compensation coefficient is calculated from the photometric parameters before and after the digital tube is attached to the membrane. The photometric parameter can be any one of the brightness value, luminous flux value and illuminance value. The X color coordinate compensation coefficient is calculated from the X color coordinate value before and after the digital tube is attached to the membrane. The Y color coordinate compensation coefficient is calculated from the Y color coordinate value before and after the digital tube is attached to the membrane. The membrane auxiliary detection device lights up the digital tube before and after the membrane is attached, and then the spectrum measurement equipment measures the photometric parameters (any one of the brightness value, luminous flux value and illuminance value), X color coordinate value and Y color coordinate value of the lit digital tube. Taking the photometric parameter as brightness value as an example, when the performance test is performed on the film 5 to be tested, it is assumed that the specification requires that the digital tube is attached to the film 5 to be tested, and the brightness value is 30mcd±15% in the constant current 10mA mode at the specified test point (film hole 21), the X color coordinate is 0.3100±0.02, and the Y color coordinate is 0.3000±0.02. First, the film 5 to be tested is placed in the film hole 21, connected to the constant current power supply, and the steady current mode is set. After the current value is set to constant current 10mA, the light source 31 is lit for 30 to 60 seconds. After ensuring that the lit light source 31 is stable, the chromaticity parameters of the light source 31 attached to the film 5 to be tested are measured by the spectrum measurement equipment, including the brightness value, the X color coordinate value, and the Y color coordinate value, for example, 30mcd, 0.3100, and 0.3000 respectively. Then the power supply is turned off, the film 5 to be tested is removed, and the chromaticity parameters of the light source 31 without the film 5 to be tested are measured again according to the above steps, for example, 40 mcd, 0.2800 and 0.2600 respectively. Finally, the performance parameters of the film 5 to be tested are calculated according to the chromaticity parameters measured twice, including the photometric compensation coefficient, the X color coordinate compensation coefficient and the Y color coordinate compensation coefficient. Specifically, the brightness value 30mcd of the film 5 to be tested with the light source 31 attached thereto is divided by the brightness value 40mcd of the film 5 to be tested without the light source 31 attached thereto, that is, 30mcd / 40mcd=0.75, to obtain the photometric compensation coefficient of the film 5 to be tested. This coefficient is a relative coefficient calculated by the fixed size of the light outlet hole 11 fixed by the reflector 1 and the fixed film hole 21 where the film 5 to be tested is placed. In addition, at this time, the photometric compensation coefficient is calculated based on the brightness values ​​measured twice. If the luminous flux value is measured using the spectrum measuring device, the photometric compensation coefficient is calculated based on the luminous flux values ​​measured twice. If the illuminance value is measured using the spectrum measuring device, the photometric compensation coefficient is calculated based on the illuminance values ​​measured twice. The X color coordinate compensation coefficient of the film 5 to be tested is obtained by subtracting the X color coordinate value 0.2800 of the film 5 to be tested without the light source 31 attached thereto from the X color coordinate value 0.3100 of the film 5 to be tested with the light source 31 attached thereto, that is, 0.3100-0.2800=0.0300.The Y color coordinate value 0.3000 of the film 5 to be tested with the light source 31 attached minus the Y color coordinate value 0.2600 of the film 5 to be tested without the light source 31 attached, that is, 0.3000-0.2600=0.0400, is used to obtain the Y color coordinate compensation coefficient of the film 5 to be tested. Among them, since different spectral measurement devices may use different units when measuring brightness, including brightness (mcd), illuminance (Lux) and luminous flux (lm), the test results may be different. However, no matter what kind of spectral measurement device is used, the X color coordinate value and Y color coordinate value of the film can be directly obtained without being affected by the device. When calculating the photometric compensation coefficient, it can be calculated based on any one of brightness (mcd) or illuminance (Lux) or luminous flux (lm). Specifically: brightness (mcd) is usually used for the measurement of point light sources or small area light sources, indicating the luminous flux within a unit solid angle; illuminance (Lux) indicates the luminous flux received per unit area, Lux=lm / m. 2 ; Luminous flux (lm) refers to the total amount of light emitted by a light source per second. When calculating the photometric compensation coefficient, a unified compensation coefficient can be used according to the units of different measuring devices. In this way, no matter which unit the spectrum measuring device uses, a unified photometric compensation coefficient can be calculated, thereby ensuring the consistency and comparability of the measured data. Based on the above test principles, the photometric compensation coefficient, X color coordinate compensation coefficient, and Y color coordinate compensation coefficient of the digital tube with and without film are specified. When producing and inspecting the film, the actual value can be calculated under the specified test conditions based on the photometric compensation coefficient, X color coordinate compensation coefficient, and Y color coordinate compensation coefficient, and it can be determined whether it is within the specified range.

[0036] according to Figure 3 The diagram of the relationship between current and luminosity (brightness, luminous flux and illumination) shown in the figure specifies the driving current of the specified test point, which can unify the relationship between the luminosity parameters (brightness value, luminous flux value and illumination value), X color coordinate value and Y color coordinate value during the film factory and internal inspection, and reduce the test error. After specifying the above factors, no matter what type of spectral measurement equipment is used by the film factory and the internal, as long as the consistency of the measurement method is ensured each time, the measurement error of both parties can be reduced.

[0037] Optionally, in this embodiment, when the demand for digital tube diaphragms is changed or newly designed, only a designated digital tube and inspection specifications need to be provided to the diaphragm manufacturer, and the sample can be quickly delivered. At the same time, the diaphragm factory can dynamically monitor the diaphragm deviation state of the production process according to the above operating specification test. The diaphragm factory only needs to provide the designated digital tube and inspection specifications for incoming material inspection to accurately test, avoiding poor consistency of testing between batches due to untimed equipment validation or temperature deviation, which in turn causes raw materials not meeting specification requirements.

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

[0039] Optionally, in this embodiment, epoxy resin glue is used as the adhesive 4, and the epoxy resin glue plays a role in fixing and protecting the light source component 3 in the potting between the reflector 1 and the light source component 3, and also helps the conduction and reflection of light. By using epoxy resin glue, 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 the effective conduction of light.

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

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

[0042] Optionally, in this embodiment, if Figure 1 and Figure 2 In the structural schematic diagram of the diaphragm auxiliary detection device shown, the light source component 3 includes a light source 31 and a printed circuit board 32, and the light source 31 is welded to one side of the printed circuit board 32 by solder paste welding or solid crystal welding wire. By soldering the light source 31 to the printed circuit board 32 of the light source component 3 by solder paste welding or solid crystal welding wire, the stable installation of the light source 31 is ensured, so that the light source 31 can emit light reliably, thereby improving the stability and accuracy of the diaphragm auxiliary detection device. By adopting the method of solder paste welding or solid crystal welding wire, the unstable factors that may be caused by the traditional welding method can be effectively avoided, and the reliability and durability of the light source 31 during operation can be ensured. Specifically, solder paste welding is a common electronic component welding method, which is to apply a solder paste containing tin on the pad of the printed circuit board 32, and then melt the solder paste by heating to form a firm welding point. Solid crystal welding wire is to weld the pins of the light source 31 to the pads on the printed circuit board 32, usually using gold wire or aluminum wire as welding material, and forming a reliable electrical connection by hot pressing or ultrasonic welding. Both welding methods have high welding strength and good electrical conductivity, and can ensure the stability of the light source 31 during use.

[0043] As an optional example, the packaging method of the light source is one of surface mounting, flip-chip mounting and traditional face mounting.

[0044] Optionally, in the present embodiment, the packaging method of the light source 31 can be one of surface mounting, flip-chip and traditional normal mounting. By providing a variety of packaging methods, the problem of a single packaging method of the light source 31 is solved, making the packaging method of the light source 31 more flexible and able to adapt to different application requirements. Surface mounting technology is a technology that directly mounts the light source 31 on the surface 32 of a printed circuit board, which has the advantages of easy installation and small space occupation. Flip-chip technology is to install 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 the heat dissipation effect. Traditional normal mounting technology is to install the light source 31 forward on the surface 32 of the printed circuit board, which has the advantages of 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 optional example, the color of the light source is a visible light color.

[0046] Optionally, in the present embodiment, the color of the light source 31 is a visible light color, and the light source 31 of the visible light color can ensure that the light output of the light source 31 is stable and consistent during the detection process, thereby improving the accuracy and reliability of the detection. By using the light source 31 of the visible light color, the detection error caused by the inconsistent light source color can be effectively avoided, and the accuracy and repeatability of the optical performance detection of the diaphragm can be ensured. Specifically, the light source of the visible light color can be realized in a variety of ways. For example, a light emitting diode can be used as a light source, and the light emitting diode can emit visible light of different colors by adjusting its luminescent material and driving current. In addition, traditional light sources such as incandescent lamps, fluorescent lamps, or laser diodes can be used as light sources, all of which can produce stable visible light output.

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

[0048] Optionally, in this embodiment, if Figure 1 and Figure 2In the structural schematic diagram of the diaphragm auxiliary detection device shown in the figure, a pin 33 is provided on the other side of the printed circuit board 32, and is inserted into the printed circuit board 32 through the interference fit of the pin hole, so as to realize the reliable connection between the pin 33 and the printed circuit board 32. The pin 33 is connected to the power supply to provide a stable power supply for the light source 31, thereby ensuring the normal operation of the light source 31, ensuring the stable connection between the power supply and the light source 31, avoiding the problem of poor contact, and improving the overall reliability and stability of the device. The pin 33 can be designed and manufactured in a variety of ways. For example, a standard metal pin can be used, or a pin can be made of an elastic material to further improve the reliability of the connection. The design of the pin hole can also be adjusted according to the specific needs of the printed circuit board 32. For example, different apertures and shapes can be used to adapt to different types of pins. The pin 33 can also be fixed to the printed circuit board 32 by welding, bonding, etc. to ensure that it will not loosen or fall off during long-term use.

[0049] As an optional example, the number of light sources, diaphragm holes, light exit holes and pins is the same and is at least one.

[0050] Optionally, in this embodiment, the light source 31, the diaphragm hole 21, the light exit hole 11 and the pin 33 are a group, and various diaphragms can be assisted in detection. It is only necessary to place the diaphragm in the designated diaphragm hole 21 and connect the power supply through the corresponding pin 33 so that the corresponding light source 31 is lit, thereby improving the detection accuracy and stability of the diaphragm auxiliary detection device for various diaphragms. By ensuring the consistency of the number of light sources 31, diaphragm holes 21, light exit holes 11 and pins 33, it is ensured that the light of each light source 31 can accurately pass through the corresponding diaphragm hole 21 and light exit hole 11, and is connected and controlled by the corresponding pin 33, thereby improving the detection accuracy and stability of the diaphragm auxiliary detection device.

[0051] According to a second aspect of the embodiment of the present application, a diaphragm performance detection system is also provided. Optionally, as Figure 4 As shown, including:

[0052] The spectrum measuring device 402 and the above diaphragm auxiliary detection device 404 , the spectrum measuring device 402 is used to measure the chromaticity parameters of the light source of the diaphragm auxiliary detection device 404 .

[0053] Optionally, in this embodiment, the diaphragm performance detection system includes a spectral measurement device and a diaphragm auxiliary detection device. The spectral measurement device is used to measure the chromaticity parameters of the diaphragm to be tested and the chromaticity parameters of the diaphragm to be tested without being attached by the light source of the diaphragm auxiliary detection device, including photometric parameters (any one of brightness value, luminous flux value and illumination value), X color coordinate value and Y color coordinate value, so that the optical performance of the diaphragm can be accurately evaluated according to the measured chromaticity parameters. For the specific test principle, please refer to the above example, which will not be repeated here. The diaphragm auxiliary detection device lights up the light source before and after the diaphragm is attached, and ensures 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 problems of diaphragm optical performance detection can be effectively solved.

[0054] Spectral measurement equipment can provide accurate optical performance evaluation by measuring the colorimetric parameters of the light source. The colorimetric parameter measurement function of the spectral measurement equipment can be achieved through a variety of technologies, such as the use of high-precision spectral sensors, colorimeters and other equipment. The design of the diaphragm auxiliary detection device ensures that the light from the light source can pass through the diaphragm evenly, avoiding uneven reflection or refraction of the light on the diaphragm surface, thereby improving the accuracy and stability of the detection. The combination of spectral measurement equipment and diaphragm auxiliary detection device can maintain the consistency and reliability of the test results under different environmental conditions.

[0055] As a preferred embodiment, by measuring the chromaticity parameters of the light source of the diaphragm auxiliary detection device through a spectral measurement device, the detection error caused by factors such as ambient light, light source attenuation and detector drift can be effectively compensated. Furthermore, the spectral measurement device can dynamically adjust the detection parameters by real-time monitoring of the chromaticity parameters to adapt to dynamic factors such as aging of the diaphragm material and changes in ambient temperature and humidity, thereby ensuring the stability and accuracy of long-term detection. Through this detection system, the efficiency and reliability of the optical performance detection of the diaphragm can be significantly improved.

[0056] According to a third aspect of the embodiment of the present application, a diaphragm performance detection method is also provided, which is applied to the above-mentioned diaphragm performance detection system. Optionally, as Figure 5 As shown, including:

[0057] S502, measuring, by a spectrum measuring device, a first chromaticity parameter of a light source of a membrane auxiliary detection device on which the membrane to be tested is placed after being illuminated, 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 brightness value, a luminous flux value, and an illuminance value;

[0058] S504, measuring, by a spectrum measuring device, a second chromaticity parameter of a film auxiliary detection device without a film to be tested placed thereon after the light source is turned on, wherein the second chromaticity parameter includes a second photometric parameter, a second X color coordinate value, and a second Y color coordinate value;

[0059] S506, calculating performance parameters of the film to be tested according to the first chromaticity parameter and the second chromaticity parameter, wherein the performance parameters include a luminance compensation coefficient, an X color coordinate compensation coefficient, and a Y color coordinate compensation coefficient.

[0060] Optionally, in this embodiment, the chromaticity parameters of the light source when the diaphragm to be tested is placed and when the diaphragm to be tested is not placed are measured by a spectral measurement device, and the performance parameters of the diaphragm to be tested are calculated based on these measured values. For the specific test principle, please refer to the above example and will not be repeated here. By measuring the chromaticity parameters of the light source in different states respectively, the optical characteristics of the diaphragm in actual use can be accurately obtained, so that accurate compensation can be performed through the calculated compensation coefficient, solving the problem of accurate measurement and compensation of chromaticity parameters in the optical performance detection of the diaphragm. By dynamically measuring and calculating the compensation coefficient, it is possible to adapt to dynamic factors such as material aging and changes in environmental temperature and humidity, and ensure the long-term stability of the detection.

[0061] Specifically, the first chromaticity parameter of the light source of the membrane auxiliary detection device where the membrane to be tested is placed is measured by a spectral measurement device after being illuminated, 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 can be any one of a brightness value, a luminous flux value, and an illuminance value; the second chromaticity parameter of the light source of the membrane auxiliary detection device where the membrane to be tested is not placed is measured by a spectral measurement device after being illuminated, wherein the 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 to be tested are calculated according to 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. Therefore, by dynamically measuring and calculating the compensation coefficient, it is possible to adapt to dynamic factors such as material aging and changes in environmental temperature and humidity, ensure the long-term stability of the detection, solve the problems of detection error accumulation and lack of chromaticity compensation mechanism existing in traditional detection technology, and ensure the accuracy and stability of the optical performance detection of the membrane.

[0062] As an optional example, calculating the performance parameter of the film to be tested according to the first chromaticity parameter and the second chromaticity parameter includes:

[0063] When the first photometric parameter is a first brightness value and the second photometric parameter is a second brightness value, a first ratio of the first brightness value to the second brightness value is calculated, and the first ratio is determined as a photometric compensation coefficient of the film to be tested;

[0064] When the first photometric parameter is a first illumination value and the second photometric parameter is a second illumination value, a third ratio of the first illumination value to the second illumination value is calculated, and the third ratio is determined as a photometric compensation coefficient of the film to be tested;

[0065] 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 a photometric compensation coefficient of the film to be tested;

[0066] Calculate a 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 film to be tested;

[0067] A second difference value of the first Y color coordinate value minus the second Y color coordinate value is calculated, and the second difference value is determined as the Y color coordinate compensation coefficient of the film to be tested.

[0068] Optionally, in this embodiment, when the first chromaticity parameter of the diaphragm auxiliary detection device where the diaphragm to be tested is placed is measured by the spectrum measuring device after the light source is illuminated to be a first brightness value, and the second chromaticity parameter of the diaphragm auxiliary detection device where the diaphragm to be tested is measured by the spectrum measuring device after the light source is illuminated to be a second brightness value, a first ratio of the first brightness value to the second brightness value is calculated, and the first ratio is determined as the photometric compensation coefficient of the diaphragm to be tested, which is used to adjust the brightness of the diaphragm. When the first chromaticity parameter of the diaphragm auxiliary detection device where the diaphragm to be tested is placed is measured by the spectrum measuring device after the light source is illuminated to be a first luminous flux value, and the second chromaticity parameter of the diaphragm auxiliary detection device where the diaphragm to be tested is not placed is measured by the spectrum measuring device after the light source is illuminated to be 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 diaphragm to be tested, which is used to adjust the luminous flux of the diaphragm. When the first chromaticity parameter of the light source of the auxiliary detection device of the film to be tested is lit up and measured by the spectrum measuring device is a first illuminance value, and the second chromaticity parameter of the light source of the auxiliary detection device of the film to be tested is lit up and measured by the spectrum measuring device, the third ratio of the first illuminance value to the second illuminance value is calculated, and the third ratio is determined as the photometric compensation coefficient of the film to be tested, which is used to adjust the illumination of the film. The first difference of the first X color coordinate value minus the second X color coordinate value is calculated, and the first difference is determined as the X color coordinate compensation coefficient of the film to be tested, which is used to adjust the X color coordinate of the film. The second difference of the first Y color coordinate value minus the second Y color coordinate value is calculated, and the second difference is determined as the Y color coordinate compensation coefficient of the film to be tested. Through these compensation coefficients, the brightness, luminous flux, illumination and chromaticity of the film can be accurately adjusted, thereby improving the accuracy and stability of detection. Specifically, the calculation process of the photometric compensation coefficient, the X color coordinate compensation coefficient and the Y color coordinate compensation coefficient may adopt a variety of algorithms, such as a simple difference calculation or a more complex weighted average algorithm, to adapt to different detection requirements and conditions.

[0069] By introducing the photometric compensation coefficient, X color coordinate compensation coefficient and Y color coordinate compensation coefficient, the chromaticity compensation problem in the performance detection of the membrane is solved. The brightness, luminous flux, illumination and chromaticity of the membrane can be adjusted through precise compensation coefficients, thereby significantly improving the accuracy and stability of the detection and avoiding the problem of excessive color difference in multiple batches of membranes. The membrane factory only needs to specify the digital tube and inspection specifications, and the membrane deviation state of the production process can be dynamically monitored according to the above operating specifications. The test can be carried out accurately and quickly, avoiding the poor consistency of the test between batches due to the lack of regular validation of the equipment or temperature deviation, resulting in the raw materials not meeting the specification requirements.

[0070] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

Claims

1. A membrane auxiliary detection device, characterized in that: It includes a reflecting plate, a membrane plate attached to the reflecting plate, and a light source component arranged in a receiving groove opened below the reflecting plate; The reflector plate is provided with a light exit hole, the membrane plate is provided with a membrane hole, and an adhesive is potted between the reflector plate and the light source component; The light emitted by the light source of the light source component is reflected through the adhesive, the light exit hole and the diaphragm hole to the diaphragm to be tested placed on the diaphragm hole.

2. The diaphragm auxiliary detection device according to claim 1, characterized in that: The adhesive is epoxy resin glue.

3. The diaphragm auxiliary detection device according to claim 1, characterized in that: The light source is welded to one side of the printed circuit board of the light source component by solder paste welding or die bonding wire.

4. The diaphragm auxiliary detection device according to claim 3, characterized in that: The packaging method of the light source is one of surface mounting, flip-chip mounting and traditional face mounting.

5. The diaphragm auxiliary detection device according to claim 3, characterized in that: The color of the light source is a visible light color.

6. The diaphragm auxiliary detection device according to claim 3, characterized in that: Pins are arranged on the other side of the printed circuit board. The pins are inserted into the printed circuit board through the pin holes on the printed circuit board through interference fit. The pins are connected to a power source.

7. The membrane auxiliary detection device according to any one of claim 6, characterized in that: The number of the light source, the diaphragm hole, the light exit hole and the pin is the same and is at least one.

8. A diaphragm performance detection system, characterized in that: It comprises a spectrum measuring device and the diaphragm-assisted detection device according to any one of claims 1 to 7, wherein the spectrum measuring device is used to measure the chromaticity parameters of the light source of the diaphragm-assisted detection device.

9. A diaphragm performance detection method, applied to the diaphragm performance detection system as claimed in claim 8, characterized in that: include: Measuring, by a spectrum measuring device, a first chromaticity parameter after a light source of a membrane auxiliary detection device on which the membrane to be tested is placed is illuminated, 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 brightness value, a luminous flux value, and an illuminance value; Measuring, by the spectrum measuring device, a second chromaticity parameter after the light source of the membrane auxiliary detection device without the membrane to be tested is lit, wherein the 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 film to be tested are calculated according to the first chromaticity parameter and the second chromaticity parameter, wherein the performance parameters include a luminance compensation coefficient, an X color coordinate compensation coefficient, and a Y color coordinate compensation coefficient.

10. The method according to claim 9, characterized in that The step of calculating the performance parameter of the film to be tested according to the first chromaticity parameter and the second chromaticity parameter comprises: When the first photometric parameter is a first brightness value and the second photometric parameter is a second brightness value, calculating a first ratio of the first brightness value to the second brightness value, and determining the first ratio as a photometric compensation coefficient of the film to be tested; When the first photometric parameter is a first illumination value and the second photometric parameter is a second illumination value, calculating a third ratio of the first illumination value to the second illumination value, and determining the third ratio as a photometric compensation coefficient of the film to be tested; 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 a photometric compensation coefficient of the film to be tested; Calculating a first difference between the first X color coordinate value and the second X color coordinate value, and determining the first difference as an X color coordinate compensation coefficient of the film to be tested; A second difference value obtained by subtracting the second Y color coordinate value from the first Y color coordinate value is calculated, and the second difference value is determined as a Y color coordinate compensation coefficient of the film to be tested.

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