Test method, detection system and equipment for display device

Abstract

The invention provides a test method, a detection system and equipment of a display device, belongs to the technical field of display, and aims to solve the problem that follow-up use of the display device is affected by a reliability test, the display device comprises a display panel and a resin structure layer, the material of the resin structure layer comprises polyester resin, and the resin structure layer is made of polyester resin. The refractive lens is arranged on the display panel and is configured to refract light emitted by the display panel; the testing method comprises the following steps: in various different types of quality inspection tests to be performed on the display device, determining a target quality inspection test having a damage risk on the resin structure layer; before the target quality inspection test, detecting the curing state of the resin structure layer; based on the detection result, performing the target quality inspection test; wherein a test object of the target quality inspection test is different from the resin structure layer.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a testing method, a detection system and equipment for a display device. Background Art

[0002] After conducting a reliability test on a resin lens type naked-eye stereoscopic display product, it was found that the resin lens and optical transparent adhesive were prone to produce bubbles, which affected the product yield. Summary of the invention

[0003] Based on the content of the background technology, the present disclosure proposes a testing method, a detection system and a device for a display device.

[0004] In a first aspect of the present disclosure, a method for testing a display device is provided, wherein the display device comprises a display panel and a resin structure layer, wherein a material of the resin structure layer comprises a polyester resin and is configured to refract light emitted from the display panel; the testing method comprises:

[0005] Among a plurality of different types of quality inspection tests to be performed on the display device, determining a target quality inspection test that poses a risk of damaging the resin structure layer;

[0006] Before the target quality inspection test, the curing state of the resin structure layer is inspected;

[0007] Based on the detection results, performing the target quality inspection test;

[0008] Wherein, the test object of the target quality inspection test is different from the resin structure layer.

[0009] Optionally, the resin structure layer includes a lens layer and a planarization layer located on a side of the lens layer away from the display panel; and detecting the curing state of the resin structure layer includes:

[0010] Acquiring manufacturing parameters corresponding to the resin structure layer, wherein the manufacturing parameters include at least one of curing time and ultraviolet light irradiation energy;

[0011] Based on the manufacturing parameters, the curing state of the lens layer and / or the planarization layer is detected.

[0012] Optionally, the detecting the curing state of the lens layer and / or the planarization layer based on the manufacturing parameters includes:

[0013] When the manufacturing parameters indicate that the curing time of the lens layer is greater than a preset time and the ultraviolet light irradiation energy is greater than a preset energy, detecting the curing state of the planarization layer;

[0014] When the manufacturing parameter indicates that the curing time of the lens is not greater than the preset time, the curing states of the lens and the planarization layer are detected.

[0015] Optionally, before the target quality inspection test, the curing state of the resin structure layer is inspected; including:

[0016] Detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer; wherein the characteristic peak corresponding to the target chemical bond includes a first characteristic peak corresponding to the carbon-hydrogen bond on the double bond carbon and / or a second characteristic peak corresponding to the carbon-carbon double bond;

[0017] Based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond, the curing state corresponding to the resin structure layer is determined.

[0018] Optionally, the absorption intensity of the characteristic peak includes a first absorption intensity of the first characteristic peak and / or a second absorption intensity of the second characteristic peak; and determining the curing state corresponding to the resin structure layer based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond includes:

[0019] Obtaining a first maximum tolerance value of absorption intensity corresponding to the carbon-hydrogen bond, and based on a magnitude relationship between the first absorption intensity and the first maximum tolerance value of absorption intensity, obtaining a curing state corresponding to the resin structure layer;

[0020] And / or, obtaining a second maximum tolerance value of absorption intensity corresponding to the carbon-carbon double bond, and based on the magnitude relationship between the second absorption intensity and the second maximum tolerance value of absorption intensity, obtaining a curing state corresponding to the resin structure layer.

[0021] Optionally, the resin structure layer includes a plurality of substructure layers stacked in sequence; and the detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer includes:

[0022] Detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in each of the substructure layers;

[0023] The step of determining the curing state of the resin structure layer based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond includes:

[0024] Based on the absorption intensity of the characteristic peak of the target chemical bond corresponding to each of the substructure layers, obtaining the curing state corresponding to the resin structure layer;

[0025] The carbon-hydrogen bonds in different substructure layers correspond to first absorption intensity maximum tolerance values ​​of different sizes, and the carbon-carbon double bonds in different substructure layers correspond to second absorption intensity maximum tolerance values ​​of different sizes.

[0026] Optionally, the plurality of substructure layers include a lens layer, and a planarization layer located on a side of the lens layer away from the display panel;

[0027] Among them, the maximum tolerance value of the first absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the first absorption intensity corresponding to the planarization layer; and / or the maximum tolerance value of the second absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the second absorption intensity corresponding to the planarization layer.

[0028] Optionally, the detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer includes:

[0029] irradiating the resin structure layer with infrared light to obtain an infrared spectrum of the resin structure layer;

[0030] Based on the infrared spectrum, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer is obtained.

[0031] Optionally, obtaining the absorption intensity of a characteristic peak corresponding to a target chemical bond contained in the resin structure layer based on the infrared spectrum includes:

[0032] The infrared spectrum is input into a recognition network to obtain the absorption intensity of the characteristic peak corresponding to the target chemical bond; wherein the recognition network is obtained by training a preset network using infrared spectrum samples corresponding to a plurality of resin structure layer samples as training samples;

[0033] And / or, the infrared spectrum is output and displayed, and the absorption intensity of the characteristic peak of the target chemical bond input into the infrared spectrum is obtained.

[0034] Optionally, obtaining the vibration peak value of the double bonds contained in the resin structure layer based on the infrared spectrum includes:

[0035] The infrared spectrum is input into a recognition network to obtain the vibration peak of the double bond; wherein the recognition network is obtained by training a preset network using infrared spectrum samples corresponding to a plurality of resin structure layer samples as training samples;

[0036] And / or, outputting and displaying the infrared spectrum, and obtaining the vibration peak value of the double bond input for the infrared spectrum.

[0037] Optionally, guiding the target quality inspection test based on the detection result includes:

[0038] Based on the detection result, predicting the damage degree value of the resin structure layer in the target quality inspection test;

[0039] Based on the damage degree value, guidance information is output, where the guidance information is at least used to indicate whether to perform the target quality inspection test.

[0040] Optionally, the method further comprises:

[0041] Based on the detection result, determining whether the resin structure layer meets the target quality inspection test;

[0042] If not, obtaining manufacturing parameters of the resin structure layer, and updating the manufacturing parameters based on the detection result, and sending the updated manufacturing parameters to the target device to instruct to form the resin structure layer according to the new process parameters;

[0043] The manufacturing parameters include at least one of curing time and ultraviolet light irradiation energy.

[0044] Optionally, updating the manufacturing parameters based on the detection result includes:

[0045] Acquire a parameter mapping table corresponding to the resin structure layer, wherein the parameter mapping table includes a curing state of the resin structure layer obtained by simulating different manufacturing parameters, and a damage degree value of the resin structure layer in different curing states under the target quality inspection test;

[0046] Based on the parameter mapping table, a target manufacturing parameter is obtained when the resin structure layer reaches a target curing state, wherein the target curing state is a condition that the damage degree value in the target quality inspection test is less than a preset degree value;

[0047] The manufacturing parameters are updated based on the detection results and the target manufacturing parameters.

[0048] Optionally, before the target quality inspection test, before detecting the curing state of the resin structure layer, the method further includes:

[0049] Acquiring manufacturing parameters of the resin structure layer in a plurality of the three-dimensional display devices to be tested;

[0050] Based on the manufacturing parameters, clustering the plurality of three-dimensional display devices into a plurality of sets, wherein the three-dimensional display devices in the same set correspond to the same manufacturing parameters;

[0051] Sampling some three-dimensional display devices from the set, detecting the curing state of the resin structure layer of the some three-dimensional display devices, and obtaining sample detection results;

[0052] The sample detection result is used as the detection result of the solidification state of each of the three-dimensional display devices in the set.

[0053] The present disclosure provides a method for testing a display device, wherein the display device comprises a display panel and a resin structure layer, wherein the material of the resin structure layer comprises polyester resin and is configured to refract light emitted from the display panel; the testing method comprises: determining a target quality inspection test that has a risk of damaging the resin structure layer among a plurality of different types of quality inspection tests to be performed on the display device; before the target quality inspection test, detecting the curing state of the resin structure layer; and performing the target quality inspection test based on the detection result; wherein the test object of the target quality inspection test is different from the resin structure layer;

[0054] Therefore, the present invention discloses a target quality inspection test that poses a risk of damage to the resin structure layer, and detects the curing state of the resin structure layer before the target quality inspection test. It can thereby determine, based on the detection result of the curing state, whether a subsequent target quality inspection test will cause damage to the resin structure layer, and further determine whether to conduct the target quality inspection test or how to conduct the target quality inspection test. In this way, it can be determined in advance whether the quality inspection test will cause damage to the resin structure layer, thereby avoiding the problem of the quality inspection test causing damage to the resin structure layer and reducing the product yield.

[0055] In a second aspect of the present disclosure, a detection system is provided, the detection system comprising:

[0056] A plurality of quality inspection and testing modules, wherein different quality inspection and testing modules are used to test different objects of the display device; wherein the display device comprises a display panel and a resin structure layer, wherein the material of the resin structure layer comprises polyester resin and is configured to refract light emitted from the display panel;

[0057] A pre-test module, used for detecting the curing state of the resin structure layer;

[0058] A transmission module, connected to the pre-test module and a target quality inspection test module among the plurality of quality inspection test modules, for transmitting the display device to the target quality inspection test module when the test result indicates that the resin structure layer satisfies the target quality inspection test;

[0059] The target quality inspection test is a test for the risk of damage to the resin structure layer.

[0060] Optionally, the pre-test module includes:

[0061] An infrared light transmitter, used for emitting infrared light to the resin structure layer;

[0062] A receiver, used for recording an infrared spectrum after the infrared light is absorbed by the resin structure layer;

[0063] An analysis module is connected to the receiver and is used to obtain the curing state of the resin structure layer based on the infrared spectrum.

[0064] According to a third aspect of the present disclosure, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the test method described in the first aspect when executed.

[0065] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the proportions in the drawings are only for illustration and do not represent the actual proportions.

[0067] Figure 1 A schematic diagram of the surface structure of a resin lens in the related art is shown;

[0068] Figure 2 The schematic diagram of the structure of the microscopic surface of the resin lens after the reliability test in the related art is shown;

[0069] Figure 3 The schematic diagram of the structure of the microscopic surface of the resin lens and the flattening layer after the reliability test in the related art is shown;

[0070] Figure 4 A flowchart showing a method for testing a display device provided by an embodiment of the present disclosure is shown;

[0071] Figure 5 A schematic diagram of the structure of a display device in an embodiment of the present disclosure is shown;

[0072] Figure 6 The quality inspection process and optimization process flow chart provided by the embodiment of the present disclosure are shown;

[0073] Figure 7 shows the infrared spectrum of the lens layer prepared when the ultraviolet light irradiation energy is 500mj;

[0074] Figure 8 shows the infrared spectrum of the lens layer prepared when the ultraviolet light irradiation energy is 800mj;

[0075] Fig. 9 The infrared spectra of the lens layer prepared when the ultraviolet light irradiation energy is 2000mj, 3000mj, and 4000mj respectively are shown;

[0076] Fig.10 The SEM images of the lens layer prepared with the ultraviolet light irradiation energy of 800 mj before and after the reliability test are shown; wherein, a is the SEM image of the lens layer prepared with the ultraviolet light irradiation energy of 800 mj before the reliability test, and b is the SEM image of the lens layer prepared with the ultraviolet light irradiation energy of 800 mj after the reliability test;

[0077] Fig.11 The SEM images of the lens layer prepared with the ultraviolet light irradiation energy of 1000 mj before and after the reliability test are shown; wherein, a is the SEM image of the lens layer prepared with the ultraviolet light irradiation energy of 1000 mj before the reliability test, and b is the SEM image of the lens layer prepared with the ultraviolet light irradiation energy of 1000 mj after the reliability test;

[0078] Fig.12 shows the infrared spectrum of the planarization layer prepared when the ultraviolet light irradiation energy is 1500mj;

[0079] Fig.13 shows the infrared spectrum of the planarization layer prepared when the ultraviolet light irradiation energy is 3000mj;

[0080] Fig.14 The SEM images of the planarization layer prepared with the ultraviolet light irradiation energy of 1000 mj before and after the reliability test are shown; wherein, a is the SEM image of the planarization layer prepared with the ultraviolet light irradiation energy of 1000 mj before the reliability test, and b is the SEM image of the planarization layer prepared with the ultraviolet light irradiation energy of 1000 mj after the reliability test;

[0081] Fig.15 A schematic diagram of the structure of a detection system provided by an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0082] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0083] In the related art, when a resin lens type naked-eye stereoscopic display product is prepared, a reliability test is performed on the product to verify the product's functionality. However, in the resin lens type naked-eye stereoscopic display product, after the reliability test, a large number of bubbles appear on the lens surface and the optically transparent adhesive. The scattering of these bubbles directly increases crosstalk, making it difficult for the product to meet requirements and reducing product yield.

[0084] Reference Figure 1 , Figure 1 The surface of the resin lens before the reliability test is shown in FIG. Figure 1 As shown, the surface is smooth and no obvious bubbles are seen. After the reliability test, the reference Figure 2 and Figure 3 , Figure 2 The microstructure of the surface of the resin lens after the reliability test is shown. Figure 3 The microstructure of the surface of the flat layer composed of the resin lens and the optical transparent adhesive after the reliability test is shown in FIG. Figure 2 and Figure 3 As shown in the figure, after the reliability test, there are a lot of bubbles on the surface of both products, and the scattering of these bubbles causes the crosstalk of the products to increase.

[0085] In view of this, the present disclosure proposes a testing method, detection system and equipment for a display device, by first detecting the curing state of the resin structure layer before conducting a quality inspection test that may cause damage to the resin structure layer, so as to determine whether the quality inspection test will damage the resin structure layer, and then determine whether to conduct a corresponding quality inspection test, or adjust the quality inspection test method according to the detection structure of the curing state, etc., so as to avoid the problem of bubbles in the resin structure layer after the quality inspection test, which leads to a reduction in product yield.

[0086] Reference Figure 4 , Figure 4A flow chart showing the steps of a method for testing a display device provided by an embodiment of the present disclosure is shown. The display device includes a display panel and a resin structure layer. The material of the resin structure layer includes polyester resin and is configured to refract light emitted from the display panel. In the embodiment of the present disclosure, the display device is a three-dimensional display device, such as a naked-eye 3D display screen, which realizes a naked-eye 3D effect by adding a layer of resin structure layer in front of the display panel. Therefore, the resin structure layer can be a resin lens layer. Through the resin lens layer, multiple cylindrical lenses refract the light emitted from the display panel to realize the naked-eye 3D effect. Figure 4 As shown, the testing method provided by the embodiment of the present disclosure specifically includes:

[0087] S101 , determining a target quality inspection test that has a risk of damaging a resin structure layer among a plurality of different types of quality inspection tests to be performed on a display device.

[0088] In this embodiment, after the display device is manufactured, it is necessary to undergo multiple quality inspection tests to determine whether it meets the use requirements. For the display device, the quality inspection tests include at least brightness test, contrast test and reliability test, among which the reliability test is to verify the relevant functionality by simulating the applicability of the product under real working conditions, so as to ensure that the product meets the application requirements under the working conditions specified by the customer. Among the various quality inspection tests, some of them may cause damage to the resin structure layer, and directly conducting quality inspection tests is likely to affect the quality of the display device.

[0089] In this case, the target quality inspection test that poses a risk of damage to the resin structure layer can be determined first, wherein the target quality inspection test can be determined based on the increase in crosstalk before and after the historical quality inspection test. For example, if the crosstalk of the product increases by more than double before and after the quality inspection test, the quality inspection test is determined to be the target quality inspection test. For example, before and after the display device undergoes a reliability test, the crosstalk of the display device increases from 2% to 6%, which is a three-fold increase. The reliability test can be determined as the target quality inspection test that poses a risk of damage to the resin structure layer. The target quality inspection test can also be determined based on the content of the quality inspection test. For example, if the quality inspection test content requires light aging, then when exposed to light, it may promote further curing of the resin structure layer, thereby affecting the surface flatness of the resin structure layer. In this case, the light aging test can be determined as the target quality inspection test. For example, when performing a mechanical impact test, if the degree of curing of the resin structure layer is not high, there is a situation where the resin structure layer is dislocated, thereby causing damage to the resin structure layer. In this case, the mechanical impact test can be determined as the target quality inspection test.

[0090] S102, before the target quality inspection test, the curing state of the resin structure layer is inspected.

[0091] Specifically, the essence of causing damage to the resin structure layer is that the curing degree of the resin structure layer is not high enough, which makes the resin structure layer easily damaged during the quality inspection process. Therefore, before the target quality inspection test, the curing state of the resin structure layer can be determined to determine whether the target quality inspection test can be carried out based on the curing state.

[0092] Among them, the material of the resin structure layer is polyester resin, and most of them are unsaturated polyester resin. Under ultraviolet light, the unsaturated bonds undergo cross-linking reaction to achieve solidification. The content of unsaturated bonds in the resin structure layer can be detected to determine the solidification state of the resin structure layer. It can be understood that in a three-dimensional display device, the resin structure layer is solidified by ultraviolet light, and the solidification conditions of each part of the resin structure layer can be roughly judged according to the parameters of the solidification process, and targeted detection can be performed. In this way, the detection range of the solidification state can be reduced, saving time.

[0093] In one embodiment, considering that the resin structure layer of the three-dimensional display device includes a resin lens and an optically transparent adhesive, during the preparation process, the resin lens is first cured, then filled with the optically transparent adhesive to form a flat layer, and then the optically transparent adhesive is cured. When judging the curing condition of the resin structure layer according to the parameters of the curing process, the curing states of the resin lens and the optically transparent adhesive can be confirmed respectively, and then it can be determined whether to perform a curing state test on the resin lens, or to perform a curing state test on the optically transparent adhesive, or to perform a curing state test on both the resin lens and the optically transparent adhesive.

[0094] S103, based on the detection results, perform target quality inspection test.

[0095] Among them, the test object of the target quality inspection test is different from the resin structure layer.

[0096] In this embodiment, the detection result can indicate whether the resin structure layer is completely cured or not completely cured. Based on the detection result, it can be determined whether to continue the target quality inspection test, or the test parameters used in the target quality inspection test can be determined. For example, when the resin structure layer is completely cured, the target quality inspection test is performed; and when the resin structure layer is not completely cured, the target quality inspection test is not performed.

[0097] In one example, the detection result can indicate the degree of curing of the resin structure layer. Based on the detection result, a target quality inspection test can be performed when the degree of curing of the resin structure layer is higher than a first threshold value, and the target quality inspection test is not performed when the degree of curing of the resin structure layer is lower than a second threshold value. In another example, when the degree of curing of the resin structure layer is between the first threshold value and the second threshold value, the parameters in the target quality inspection test can be adjusted according to the degree of curing.

[0098] Exemplarily, when the degree of curing of the resin structure layer is higher than 95%, a mechanical impact test is performed, and when the degree of curing of the resin structure layer is lower than 90%, no mechanical impact test is performed. When the degree of curing of the resin structure layer is between 90% and 95%, quality inspection is performed, and the impact force during the mechanical impact test can be modified according to the relationship between the degree of curing and the maximum bearing capacity to prevent damage to the resin structure layer.

[0099] In one embodiment, after detecting the curing state of the resin structure layer, if the detection result indicates that the resin structure layer is not completely cured, the detection result can also be used to guide the parameter adjustment of the curing process of the resin structure layer. For example, when the resin structure layer is not completely cured, increasing the curing time for preparing the resin structure layer or increasing the intensity of ultraviolet light, so as to improve the curing degree of the resin structure layer in the subsequent preparation of the display device.

[0100] The testing method for a display device provided in an embodiment of the present disclosure determines a target quality inspection test that poses a risk of damage to a resin structure layer among multiple quality inspection tests to be performed on the display device, and detects the curing state of the resin structure layer before the target quality inspection test, so as to guide the target quality inspection test based on the curing state of the resin structure layer obtained by the detection. Thus, before the target quality inspection test, it can be determined whether the target quality inspection test can be performed based on the curing state of the resin structure layer, thereby avoiding the situation where directly performing the target quality inspection test causes damage to the resin structure layer.

[0101] In one embodiment, the display device realizes a three-dimensional display effect through a cylindrical lens. In this case, the resin structure layer includes a lens layer and a planarization layer located on a side of the lens layer away from the display panel. The structure can refer to Figure 5 , Figure 5 FIG. 4 shows a schematic diagram of the structure of the display device provided in this embodiment. Figure 5 As shown, the resin structure layer is composed of a lens layer (Lens) and a flattening layer (OCR), wherein the resin structure layer is located on one side of AR (Augmented Reality). A PET (Polyethylene terephthalate) substrate is first formed on one side of the AR, and then a lens layer is formed on the PET. Finally, OCR (Optical Clear Resin) is used to fill the lens layer to flatten the lens layer.

[0102] Among them, the process of forming the lens layer on the PET and obtaining the flattening layer by OCR filling are both achieved by curing. When the curing state of the resin structure layer is detected, it can be determined which specific layer needs to be tested for the curing state. The process can be specifically as follows: first, obtain the manufacturing parameters corresponding to the resin structure layer, and the manufacturing parameters include at least one of the curing time and the ultraviolet light irradiation energy; then, based on the manufacturing parameters, detect the curing state of the lens layer and / or the flattening layer.

[0103] In this embodiment, the manufacturing parameters corresponding to the lens layer and the planarization layer, that is, the corresponding curing time, ultraviolet light irradiation energy, etc., can be obtained respectively. These manufacturing parameters determine the curing degree of the lens layer and the planarization layer. Then, according to the curing time, ultraviolet light irradiation energy, etc., it can be determined whether to perform a curing state test on the lens layer, or to perform a curing state test on the planarization layer, or to perform a curing state test on both the lens layer and the planarization layer.

[0104] Specifically, when preparing the display device, the lens layer is first cured and then filled with optical transparent glue, and the planarization layer is obtained after curing. Among them, the lens layer is cured twice, and the curing state of the planarization layer can be directly detected. Of course, the curing state of both the lens layer and the planarization layer can also be detected to accurately know the target quality inspection test.

[0105] In one embodiment, during the curing process of the lens layer, if the optical transparent adhesive is filled to form the planarization layer before the lens layer is completely cured, the surface of the lens layer may be cured after two curings, but the inside may not be completely cured. In this case, it can be preliminarily determined whether the lens layer is completely cured based on the manufacturing parameters, and then it can be determined whether to detect the curing state of the lens layer. The process can be specifically: when the manufacturing parameters indicate that the curing time of the lens layer is greater than the preset time and the ultraviolet light irradiation energy is greater than the preset energy, the curing state of the planarization layer is detected; when the manufacturing parameters indicate that the curing time of the lens layer is not greater than the preset time, the curing states of the lens layer and the planarization layer are detected.

[0106] Among them, the longer the curing time characterized by the manufacturing parameters and the greater the ultraviolet irradiation energy, the higher the curing degree of the resin structure layer. In this case, the curing degree of the lens layer can be preliminarily judged according to the curing time and the ultraviolet irradiation energy, and then it can be determined whether it is necessary to perform a curing state test on the lens layer according to the curing degree. For example, when the curing degree of the lens layer is determined to be high according to the curing time and the ultraviolet irradiation energy, and the curing process of the flattening layer does not affect the lens layer, the curing state test of the flattening layer is performed; and when the curing degree of the lens layer is determined to be low according to the curing time and the ultraviolet irradiation energy, and the curing process of the flattening layer will affect the lens layer, the curing state test of both the lens layer and the flattening layer is performed.

[0107] In this embodiment, the theoretical curing time required for complete curing can be determined as the preset time based on the double bond content in the raw materials of the lens layer, and the theoretical ultraviolet irradiation energy required for complete curing can be used as the preset energy, so as to determine whether the lens layer is completely cured; the corresponding relationship between the raw materials and dosage of the lens layer and the time required for complete curing and the ultraviolet irradiation energy can also be predetermined, and then it can be determined directly based on the corresponding relationship and manufacturing parameters whether the lens layer is completely cured, and then it can be determined whether the curing state of the lens layer should be detected.

[0108] For any of the above embodiments, the curing process of the lens layer and the planarization layer is actually a process in which the carbon-carbon double bonds in the polyester resin are broken and a cross-linking reaction occurs to form a network structure. In the fully cured state, if the resin structure layer does not contain carbon-carbon double bonds, it means that the curing is complete. Therefore, the detection process of the curing state can be specifically as follows: first, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer is detected; wherein the characteristic peak corresponding to the target chemical bond includes a first characteristic peak corresponding to the carbon-hydrogen bond on the double bond carbon and / or a second characteristic peak corresponding to the carbon-carbon double bond; then, based on the absorption intensity of the detected characteristic peak corresponding to the target chemical bond, the curing state corresponding to the resin structure layer is determined.

[0109] In this embodiment, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer can be detected by infrared spectroscopy analysis. For example, an infrared spectrometer is used to obtain an infrared spectrum of the resin structure layer. The first characteristic peak corresponding to the carbon-hydrogen bond on the double-bonded carbon and the second characteristic peak corresponding to the carbon-carbon double bond appear in the infrared spectrum. Both can indicate that the sample being tested contains carbon-carbon double bonds, and the absorption intensity of the first characteristic peak and the second characteristic peak in the infrared spectrum can characterize the content of carbon-carbon double bonds in the sample. Then, the curing state corresponding to the resin structure layer can be determined according to the absorption intensity of the first characteristic peak; the curing state corresponding to the resin structure layer can also be determined according to the absorption intensity of the second characteristic peak; and the curing state corresponding to the resin structure layer can also be determined according to the absorption intensity of the first characteristic peak.

[0110] Among them, the stronger the absorption intensity of the characteristic peak, the higher the content of carbon-carbon double bonds in the resin structure layer, and the lower the degree of curing of the resin structure layer; the weaker the absorption intensity of the characteristic peak, the lower the content of carbon-carbon double bonds in the resin structure layer, and the higher the degree of curing of the resin structure layer. When the absorption intensity of the characteristic peak is less than a certain value, it can be considered that the resin structure layer is completely cured.

[0111] It can be understood that different characteristic peaks have different strengths. Therefore, when determining the curing state of the resin structure layer based on the absorption intensity of the characteristic peaks, the absorption intensity of the first characteristic peak and the second characteristic peak are not the same, and in the fully cured state, the maximum absorption intensity corresponding to the first characteristic peak and the second characteristic peak is also different.

[0112] Thus, the specific process of determining the curing state corresponding to the resin structure layer may be: obtaining the maximum tolerance value of the first absorption intensity corresponding to the carbon-hydrogen bond, and obtaining the curing state corresponding to the resin structure layer based on the magnitude relationship between the first absorption intensity and the maximum tolerance value of the first absorption intensity;

[0113] And / or, the magnitude relationship between the maximum tolerance values ​​of the second absorption intensity corresponding to the carbon-carbon double bond is obtained, and the curing state corresponding to the resin structure layer is obtained.

[0114] In this embodiment, the maximum tolerance value of the first absorption intensity represents the maximum absorption intensity of the first characteristic peak corresponding to the carbon-hydrogen bond in the fully cured state, and the maximum tolerance value of the second absorption intensity represents the maximum absorption intensity of the second characteristic peak corresponding to the carbon-carbon double bond in the fully cured state. The curing state of the resin structure layer can be determined based on the relationship between the first absorption intensity of the first characteristic peak and the maximum tolerance value of the first absorption intensity, or based on the relationship between the second absorption intensity of the second characteristic peak and the maximum tolerance value of the second absorption intensity. The curing state of the resin structure layer can also be determined based on the size relationship between the first absorption intensity and the maximum tolerance value of the first absorption intensity, and the size relationship between the second absorption intensity and the maximum tolerance value of the second absorption intensity.

[0115] For example, if the first absorption intensity is greater than or equal to the maximum tolerance value of the first absorption intensity, it means that the resin structure layer is not fully cured, and if the first absorption intensity is less than the maximum tolerance value of the first absorption intensity, it means that the resin structure layer is fully cured. Similarly, if the second absorption intensity is greater than or equal to the maximum tolerance value of the second absorption intensity, it means that the resin structure layer is not fully cured, and if the second absorption intensity is less than the maximum tolerance value of the second absorption intensity, it means that the resin structure layer is fully cured.

[0116] Of course, the degree of curing can also be determined based on the proportional relationship between the first absorption intensity and the maximum tolerance value of the first absorption intensity, and the proportional relationship between the second absorption intensity and the maximum tolerance value of the second absorption intensity, and the curing state of the resin structure layer can be indicated by the degree of curing. For example, the degree of curing can be determined based on the proportional relationship between the first absorption intensity and the maximum tolerance value of the first absorption intensity, and when the degree of curing reaches 99.5% or more, it indicates that the resin structure layer is in a completely cured state, and when the degree of curing is below 99.5%, it indicates that the resin structure layer is in an incompletely cured state.

[0117] Among them, the maximum tolerance value of the first absorption intensity and the second maximum tolerance value of the absorption intensity can be determined according to the damage degree of the resin structure layer under different curing states after the target quality inspection test. For example, the first absorption intensity of the first characteristic peak and the second absorption intensity of the second characteristic peak in the resin structure layer under different curing states can be detected first, and the surface damage degree of the resin structure layer under each curing state after the target quality inspection test can be determined, and then the curing state of the resin structure layer corresponding to the maximum damage degree that the resin structure layer can tolerate is determined, and the first absorption intensity of the first characteristic peak corresponding to the curing state is used as the maximum tolerance value of the first absorption intensity, and the second absorption intensity of the second characteristic peak corresponding to the curing state is used as the maximum tolerance value of the second absorption intensity.

[0118] In one embodiment, the resin structure layer includes a plurality of substructure layers stacked in sequence. At this time, the curing state of each substructure layer is individually detected to determine the specific structure layer that is not completely cured. Specifically, first, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in each substructure layer is detected; then, based on the absorption intensity of the characteristic peak of the target chemical bond corresponding to each substructure layer, the curing state corresponding to the resin structure layer is obtained.

[0119] The carbon-hydrogen bonds in different substructure layers correspond to first absorption intensity maximum tolerance values ​​of different sizes, and the carbon-carbon double bonds in different substructure layers correspond to second absorption intensity maximum tolerance values ​​of different sizes.

[0120] In this embodiment, the multiple substructure layers are prepared separately, so the preparation process of each substructure layer is different, and the curing states of the multiple substructure layers are different. Therefore, the curing state of each substructure layer in the resin structure layer can be detected separately, and then the curing state of the resin structure layer can be determined according to the curing state of each substructure layer.

[0121] Specifically, the absorption intensity of the characteristic peak of the target chemical bond in each substructure layer can be detected respectively, and the curing state of the resin structure layer can be determined by combining the detection results of multiple substructure layers. Among them, different substructure layers have different double bond contents required to cause damage during the target quality inspection test. Therefore, according to the conditions of different substructure layers themselves, the maximum tolerance values ​​of the first absorption intensity of different sizes corresponding to the carbon-hydrogen bond and the second absorption intensity of different sizes corresponding to the carbon-carbon double bond in each substructure layer can be determined.

[0122] In one embodiment, the plurality of substructure layers include a lens layer, and a planarization layer located on a side of the lens layer facing away from the display panel;

[0123] Among them, the maximum tolerance value of the first absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the first absorption intensity corresponding to the planarization layer; and / or the maximum tolerance value of the second absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the second absorption intensity corresponding to the planarization layer.

[0124] In this embodiment, the flattening layer is located on the surface of the lens layer. During the target quality inspection test, the lens layer is less affected than the flattening layer. Therefore, under the same test conditions, the degree of damage to the lens layer is less than that of the flattening layer. Therefore, the first maximum absorption intensity tolerance value corresponding to the lens layer may be greater than the first maximum absorption intensity tolerance value corresponding to the flattening layer, or the second maximum absorption intensity tolerance value corresponding to the lens layer may be greater than the second maximum absorption intensity tolerance value corresponding to the flattening layer. Of course, the first absorption intensity maximum tolerance value corresponding to the lens layer may be greater than the first absorption intensity maximum tolerance value corresponding to the flattening layer, and the second absorption intensity maximum tolerance value corresponding to the lens layer may be greater than the second absorption intensity maximum tolerance value corresponding to the flattening layer.

[0125] It can be understood that the absorption intensity of the characteristic peak corresponding to the target chemical bond is detected by infrared spectroscopy testing. The infrared spectrum obtained by infrared spectroscopy testing can indicate the characteristic peak and absorption intensity of each functional group. Therefore, the resin structure layer can be first irradiated with infrared light to obtain an infrared spectrum after irradiating the resin structure layer; and then based on the infrared spectrum, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer can be obtained.

[0126] Wherein, in the case where the resin structure layer includes a lens layer and a planarization layer, the lens layer and the planarization layer can be irradiated with infrared light respectively, so as to obtain infrared spectra of the lens layer and the planarization layer respectively, so as to analyze the curing states of the lens layer and the planarization layer respectively. In the infrared spectrum, the chemical bonds contained in the resin structure layer and their absorption intensities can be determined according to the positions of the characteristic peaks, and the curing state of the resin structure layer can be determined according to the characteristic peaks of the chemical bonds related to the curing in the resin structure layer and the corresponding absorption intensities. If the curing process requires the breaking of carbon-carbon double bonds to produce a cross-linking reaction, the characteristic peaks corresponding to the carbon-carbon double bonds in the resin structure layer and their absorption intensities can be detected to determine the curing state.

[0127] Wherein, in the case of determining the target chemical bond to be analyzed, the analysis process of the infrared spectrum can be: inputting the infrared spectrum into the recognition network to obtain the absorption intensity of the characteristic peak corresponding to the target chemical bond; wherein the recognition network is obtained by training a preset network using infrared spectrum samples corresponding to multiple resin structure layer samples as training samples;

[0128] And / or, outputting and displaying the infrared spectrum, and obtaining the absorption intensity of the characteristic peak of the target chemical bond input into the infrared spectrum.

[0129] Specifically, the analysis of the infrared spectrum can be achieved through a recognition network, or it can be achieved by manually analyzing the infrared spectrum. In the process of using the recognition network to analyze the infrared spectrum, the infrared spectra corresponding to multiple resin structure layer samples can be used as training samples, and the absorption intensity of the characteristic peak corresponding to the target chemical bond in each infrared spectrum is used as a label. The training sample is used to train the preset network to obtain the recognition network. When the infrared spectrum of the resin structure layer is obtained, it can be directly input into the recognition network to obtain the absorption intensity of the characteristic peak corresponding to the target chemical bond in the resin structure layer. Of course, the absorption intensity of the characteristic peak corresponding to the target chemical bond can also be directly read from the infrared spectrum according to the wave number range corresponding to the target chemical bond.

[0130] In one embodiment, it is possible to determine whether the target quality inspection test will cause damage to the resin structure layer, or the degree of damage caused by the target quality inspection test to the resin structure layer, based on the test results of the curing state. In this case, if the degree of damage is high, the target quality inspection test may not be performed to avoid the problem of unqualified products caused by the target quality inspection test. The process specifically includes: first, based on the test results, predicting the degree of damage of the resin structure layer in the target quality inspection test; then, based on the degree of damage value, outputting guidance information, which is at least used to indicate whether to perform the target quality inspection test.

[0131] Specifically, the test result can indicate the degree of curing, and the damage degree value of the resin structure layer in the target quality inspection test can be predicted based on the degree of curing. For example, a relationship curve between the degree of curing and the degree of damage can be established in advance. When the test result is obtained, the damage degree value is predicted based on the degree of curing indicated by the test result and the relationship curve, and then whether to perform the target quality inspection test is determined based on the damage degree value. Among them, the damage degree value can be the growth degree of bubbles in the resin structure layer, and can also be expressed by the crosstalk increase ratio of the display device.

[0132] In one example, the output guidance information can also be used to adjust the test parameters of the target quality inspection test. For example, when conducting a light aging test, the light intensity, illumination time, etc. in the light aging test can be adjusted according to the damage degree value, so that it can meet the performance requirements without performing too many tests, which will cause damage to the resin structure layer.

[0133] It is understandable that after pre-detecting the curing state of the resin structure layer, if the curing degree of the resin structure layer is low or it is difficult to meet the product requirements, the manufacturing parameters of the resin structure layer can be adjusted according to the currently detected curing state, so that the curing degree of the resin structure layer manufactured subsequently can be improved so that it can adapt to the target quality inspection test. The process may include: determining whether the resin structure layer meets the target quality inspection test based on the detection result; if not, obtaining the manufacturing parameters of the resin structure layer, and updating the manufacturing parameters based on the detection result, and sending the updated manufacturing parameters to the target device to instruct the resin structure layer to be formed according to the new process parameters;

[0134] The manufacturing parameters include at least one of curing time and ultraviolet light irradiation energy.

[0135] Specifically, when it is determined according to the test results that the resin structure layer cannot meet the target quality inspection test, the situation can be fed back to the process of preparing the resin structure layer. At this time, the curing time, ultraviolet light irradiation energy, etc. can be adjusted according to the curing state of the resin structure layer. For example, the required reaction degree can be determined according to the proportional relationship between the absorption intensity of the characteristic peak corresponding to the target chemical bond in the resin structure layer obtained by detection and the maximum absorption intensity tolerance value, and then the manufacturing parameters can be adjusted according to the reaction degree, such as by increasing the curing time and increasing the ultraviolet light irradiation energy to increase the reaction degree.

[0136] Among them, in the case that the resin structure layer includes a lens layer and a planarization layer, since the lens layer and the planarization layer are prepared separately, the manufacturing parameters of the two can be updated respectively according to the inspection results of the lens layer and the planarization layer. If the inspection results show that the curing state of the lens layer can meet the target quality inspection test, while the curing state of the planarization layer is difficult to meet the target quality inspection test, then only the manufacturing parameters of the planarization layer can be adjusted. In this way, the sub-structure layers in the resin structure layer can be adjusted in a targeted manner.

[0137] In one example, the process of updating the manufacturing parameters of the resin structure layer according to the detection results can be specifically: first, obtaining a parameter mapping table corresponding to the resin structure layer, the parameter mapping table including the curing state of the resin structure layer obtained under simulation of different manufacturing parameters, and the damage degree value of the resin structure layer in different curing states under the target quality inspection test; then, based on the parameter mapping table, obtaining the target manufacturing parameters when the resin structure layer reaches the target curing state, the target curing state is the condition that the damage degree value in the target quality inspection test is less than the preset degree value; thereafter, based on the detection results and the target manufacturing parameters, updating the manufacturing parameters.

[0138] Specifically, the curing state of the resin structure layer under different manufacturing parameters and the damage degree values ​​of the resin structure layer under different curing states under the target quality inspection test can be simulated in advance to obtain a parameter mapping table. Then, when the test result feedback is received that the resin structure layer cannot meet the target quality inspection test, the target curing state corresponding to the resin structure layer can be determined according to the parameter mapping table, and the target manufacturing parameters are determined according to the target curing state. Finally, the manufacturing parameters are updated to the target manufacturing parameters. Among them, when the damage degree value of the resin structure layer is less than the preset degree value, the target quality inspection test has little impact on the resin structure layer, so that the display device can still be put into use normally after the target quality inspection test.

[0139] Among them, in the case that the resin structure layer includes a lens layer and a planarization layer, the parameter mapping table corresponding to the lens layer and the parameter mapping table corresponding to the planarization layer can be simulated respectively, and then when the detection result indicates that the curing state of the lens layer is difficult to meet the target quality inspection test, the manufacturing parameters of the lens layer are updated separately, and when the detection result indicates that the curing state of the planarization layer is difficult to meet the target quality inspection test, the manufacturing parameters of the planarization layer are updated separately.

[0140] In one embodiment, considering that the display devices are in a mass production process, the display devices in the same batch are manufactured using the same parameters. Then, by testing a sample of the display devices produced in the same batch, the curing state of the resin structure layer of the display devices produced in the same batch can be determined. Specifically, the process includes: first, obtaining the manufacturing parameters of the resin structure layer in multiple display devices to be tested; then, based on the manufacturing parameters, clustering the multiple display devices into multiple sets, and the display devices in the same set correspond to the same manufacturing parameters; then, sampling some display devices from the set, and testing the curing state of the resin structure layer of some display devices to obtain sample test results; then, using the sample test results as the test results of the curing state of the resin structure layer of each display device in the set.

[0141] In this embodiment, it can be determined whether the resin structure layers of the multiple display devices are produced in the same batch based on the manufacturing parameters of the resin structure layers in the multiple display devices. The multiple display devices can be clustered into multiple sets based on the manufacturing parameters. The manufacturing parameters of the display devices in each set are the same. When performing curing state detection on the display devices in a set, one or more display devices can be extracted from the set to detect the curing state of their resin structure layers. The detection result can characterize the curing state of the resin structure layer of each display device in the entire set.

[0142] Among them, in the case where the resin structure layer includes a lens layer and a planarization layer, the clustering method can be determined according to the preparation process. For example, if the lens layer and the planarization layer are prepared continuously during the preparation process, that is, the manufacturing parameters of the lens layer and the planarization layer of the display devices of the same batch must be the same, then multiple display devices can be clustered together according to the manufacturing parameters of the lens layer and the planarization layer; and in the case where the preparation process of the lens layer and the planarization layer is not continuous, the display devices can be clustered according to the manufacturing parameters of the lens layer and the manufacturing parameters of the planarization layer, respectively, so that the detection results of the samples in each set can accurately represent the curing state of the lens layer or the planarization layer.

[0143] By adopting the testing method provided in the embodiment of the present disclosure, the curing state of the lens layer and the planarization layer in the resin structure layer is detected before the target quality inspection test, and it is determined whether to perform the target quality inspection test on the display device based on the detection result, so as to avoid the problem of the display device being unqualified due to damage to the resin structure layer after the target quality inspection test. In addition, after determining that the curing state of the resin structure layer cannot meet the requirements of the target quality inspection test based on the detection result, the detection result can also be fed back to the preparation process of the resin structure layer, so as to optimize the manufacturing parameters of the resin structure layer, so that the resin structure layer of the display device prepared subsequently can meet the requirements of the target quality inspection test.

[0144] The following is a detailed description of the test method for the display device provided by the embodiment of the present disclosure:

[0145] First, in the embodiment of the present disclosure, the display device is a three-dimensional display device, such as a naked-eye 3D display screen. In this embodiment, the display device is a resin lens naked-eye stereoscopic display product, and the target quality inspection test is a reliability test as an example:

[0146] Reference Figure 6 , Figure 6 The detection process and optimization process flow chart of the test method provided in this embodiment are shown as follows: Figure 6 As shown, after a plurality of display devices are obtained through mass production, the plurality of display devices are clustered according to the manufacturing parameters of the resin structure layer. The clustering method is that the manufacturing parameters of the lens layer are the same and the manufacturing parameters of the planarization layer are the same, and a plurality of sets are obtained after clustering.

[0147] For each set, a display device is selected as a sample for curing state detection, and the absorption intensity of the characteristic peak of the carbon-carbon double bond in the lens layer of the display device and the absorption intensity of the characteristic peak of the carbon-carbon double bond in the flattening layer of the display device are respectively detected.

[0148] Afterwards, whether the resin structure layer meets the reliability test conditions is determined based on whether the absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the absorption intensity corresponding to the lens layer, and whether the absorption intensity corresponding to the planarization layer is greater than the maximum tolerance value of the absorption intensity corresponding to the planarization layer.

[0149] The maximum tolerance values ​​of the absorption intensities corresponding to the lens layer and the planarization layer can be determined in advance based on the amount of bubble formation in the resin structure layer after a reliability test under different curing conditions.

[0150] For example, ultraviolet light with different energies is used to cure the lens layer, and an infrared spectrum of the lens layer is obtained after curing, such as Figure 7-Figure 9 As shown, Figure 7-Figure 9 The infrared spectra of the lens layer obtained by curing the lens layer by irradiating the lens layer with ultraviolet light of 500mj, 800mj, 2000mj, 3000mj and 4000mj are shown respectively. Fig. 9 In the figure, curve 1 is the infrared spectrum of the lens layer obtained by curing the lens layer with 2000mj of ultraviolet light, curve 2 is the infrared spectrum of the lens layer obtained by curing the lens layer with 3000mj of ultraviolet light, and curve 3 is the infrared spectrum of the lens layer obtained by curing the lens layer with 4000mj of ultraviolet light; according to Figure 7-Figure 9 It can be seen that the curing degree of the lens layer increases with the increase of the ultraviolet light irradiation energy. When the ultraviolet light irradiation energy reaches more than 2000mj, the absorption intensity of the -CH=CH2 stretching vibration peak decreases to about 0.01.

[0151] Among them, according to Figure 8 The absorption intensity of the -CH=CH2 stretching vibration peak in the lens layer prepared under the condition of UV irradiation energy of 800mj is 0.08. The reliability test of the lens layer is carried out. The SEM images of the surface of the lens layer before and after the test are as follows: Fig.10 As shown, Fig.10 Figure a is the SEM image of the lens layer before the reliability test; Fig.10 (b) is the SEM image of the lens layer after the reliability test.

[0152] The absorption intensity of the -CH=CH2 stretching vibration peak in the lens layer prepared under the condition of UV irradiation energy of 800 mj is 0.01. The reliability test of the lens layer is carried out, and the SEM images of the surface of the lens layer before and after the test are as follows: Fig.11 As shown, Fig.11 Figure a is a SEM image of the lens surface before the reliability test. Fig.11 Figure b is a SEM image of the lens surface after the reliability test. Fig.10 and Fig.11When the absorption intensity of the -CH=CH2 stretching vibration peak is 0.08, a large number of bubbles are generated on the surface of the lens layer after the reliability test, and when the absorption intensity of the -CH=CH2 stretching vibration peak is 0.01, no obvious bubbles are generated on the surface of the lens layer after the reliability test. Therefore, 0.01 is taken as the maximum tolerance value of the absorption intensity of the -CH=CH2 stretching vibration peak.

[0153] Likewise, Fig.12 and Fig.13 As shown, Fig.12 and Fig.13 The infrared spectra of the planarized layer obtained by curing with 1500mj and 3000mj of ultraviolet light are shown respectively. Fig.12 and Fig.13 It can be seen that the curing degree of the planarization layer increases with the increase of the ultraviolet light irradiation energy. When the ultraviolet light irradiation energy reaches 3000mj, the -CH=CH2 stretching vibration peak decreases to 0.

[0154] Among them, the absorption intensity of the -CH=CH2 stretching vibration peak in the flattening layer prepared under the condition of UV irradiation energy of 1000mj is 0.08. The reliability test of the flattening layer is carried out. The SEM images of the surface of the flattening layer before and after the test are as follows: Fig.14 As shown, Fig.14 In the figure, a is a SEM image of the flattening layer prepared with an ultraviolet light irradiation energy of 1000 mj before the reliability test, and b is a SEM image of the flattening layer prepared with an ultraviolet light irradiation energy of 1000 mj after the reliability test. When the absorption intensity of the -CH=CH2 stretching vibration peak in the prepared flattening layer is 0.005, the flattening layer is subjected to a reliability test, and the microscopic surface of the flattening layer is observed after the test, and no obvious bubbles are produced. Therefore, when the absorption intensity of the -CH=CH2 stretching vibration peak is 0.08, a large number of bubbles are generated on the surface of the flattening layer after the reliability test, and when the absorption intensity of the -CH=CH2 stretching vibration peak is 0.005, no obvious bubbles are generated on the surface of the flattening layer after the reliability test, and 0.005 is taken as the maximum tolerance value of the absorption intensity of the -CH=CH2 stretching vibration peak.

[0155] Thus, the lens layer and the planarization layer are irradiated with infrared light to obtain an infrared spectrum. When the absorption intensity of the first characteristic peak corresponding to the lens layer in the infrared spectrum is less than 0.01, and the absorption intensity of the first characteristic peak corresponding to the planarization layer is less than 0.005, it is determined that the reliability test can be carried out. Of course, it can also be determined that the reliability test can be carried out when the absorption intensity of the first characteristic peak corresponding to the lens layer in the infrared spectrum is less than 0.012, and the absorption intensity of the first characteristic peak corresponding to the planarization layer is less than 0.007.

[0156] If the absorption intensity of the first characteristic peak corresponding to the lens layer is greater than 0.01, or the absorption intensity of the first characteristic peak corresponding to the flattening layer is greater than 0.005, it means that a large number of bubbles will appear in the resin structure layer after the reliability test, and the reliability test cannot be performed. At this time, the manufacturing parameters of the resin structure layer can be adjusted according to the result. If the test result shows that the absorption intensity of the first characteristic peak corresponding to the lens layer is greater than 0.01, it is fed back that the lens layer is not completely cured. At this time, the parameter mapping table can be called to adjust the curing time and ultraviolet light irradiation energy of the lens layer, improve the curing degree of the lens layer, and then re-prepare the display device.

[0157] Based on the same inventive concept, the present disclosure also provides a detection system, referring to Fig.15 , Fig.15 The structure diagram of the detection system provided by the embodiment of the present disclosure is shown as follows: Fig.15 As shown, the detection system specifically includes:

[0158] A plurality of quality inspection test modules 201, wherein different quality inspection test modules 201 are used to test different objects of the display device; wherein the display device comprises a display panel and a resin structure layer, the resin structure layer comprises a polyester resin and is configured to refract light emitted from the display panel;

[0159] A pre-test module 202 is used to detect the curing state of the resin structure layer;

[0160] The transmission module 203 is connected to the pre-test module 202 and the target quality inspection test module in the multiple quality inspection test modules 201, and is used to transmit the display device to the target quality inspection test module when the test results indicate that the resin structure layer meets the target quality inspection test; wherein the target quality inspection test is a test for the risk of damage to the resin structure layer.

[0161] In this embodiment, in the pre-test module 202, the specific detection method of the curing state of the resin structure layer refers to the embodiment of the above-mentioned test method, and will not be described in detail here.

[0162] In one embodiment, the pre-test module 202 includes:

[0163] An infrared light transmitter, used for emitting infrared light to the resin structure layer;

[0164] A receiver, used for recording an infrared spectrum after the infrared light is absorbed by the resin structure layer;

[0165] The analysis module is connected to the receiver and is used to obtain the curing state of the resin structure layer based on the infrared spectrum.

[0166] In this embodiment, an infrared transmitter and a receiver are used to obtain an infrared spectrum of the resin structure layer. The analysis module is connected to the receiver. It analyzes the absorption intensity of the characteristic peak of the target chemical bond in the resin structure layer according to the acquired infrared spectrum, and determines the curing state of the resin structure layer according to the relationship between the absorption intensity and the maximum tolerance value of the absorption intensity.

[0167] Based on the same inventive concept, an embodiment of the present disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the test method described in any of the above embodiments when executed.

[0168] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0169] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0170] The above is a detailed introduction to a test method, detection system and equipment for a display device provided by the present disclosure. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method of the present disclosure and its core idea. At the same time, for a person skilled in the art, according to the idea of ​​the present disclosure, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present disclosure.

[0171] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0172] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0173] References herein to "one embodiment," "embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present disclosure. In addition, please note that examples of the term "in one embodiment" herein do not necessarily all refer to the same embodiment.

[0174] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0175] In the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present disclosure may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0176] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A method for testing a display device, characterized in that: The display device includes a display panel and a resin structure layer, wherein the resin structure layer is made of polyester resin and is configured to refract light emitted from the display panel; The test method includes: Among a plurality of different types of quality inspection tests to be performed on the display device, determining a target quality inspection test that poses a risk of damaging the resin structure layer; Before the target quality inspection test, the curing state of the resin structure layer is inspected; Based on the detection results, performing the target quality inspection test; Wherein, the test object of the target quality inspection test is different from the resin structure layer.

2. The testing method according to claim 1, characterized in that: The resin structure layer includes a lens layer and a planarization layer located on a side of the lens layer away from the display panel; The detecting the curing state of the resin structure layer comprises: Acquiring manufacturing parameters corresponding to the resin structure layer, wherein the manufacturing parameters include at least one of curing time and ultraviolet light irradiation energy; Based on the manufacturing parameters, the curing state of the lens layer and / or the planarization layer is detected.

3. The testing method according to claim 2, characterized in that: The detecting the curing state of the lens layer and / or the planarization layer based on the manufacturing parameters includes: When the manufacturing parameters indicate that the curing time of the lens layer is greater than a preset time and the ultraviolet light irradiation energy is greater than a preset energy, detecting the curing state of the planarization layer; When the manufacturing parameter indicates that the curing time of the lens layer is not greater than the preset time, the curing states of the lens layer and the planarization layer are detected.

4. The testing method according to any one of claims 1 to 3, characterized in that: Before the target quality inspection test, the curing state of the resin structure layer is inspected; including: Detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer; wherein the characteristic peak corresponding to the target chemical bond includes a first characteristic peak corresponding to the carbon-hydrogen bond composed of double bond carbon and / or a second characteristic peak corresponding to the carbon-carbon double bond; Based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond, the curing state corresponding to the resin structure layer is determined.

5. The testing method according to claim 4, characterized in that: The absorption intensity of the characteristic peak includes a first absorption intensity of the first characteristic peak and / or a second absorption intensity of the second characteristic peak; and determining the curing state corresponding to the resin structure layer based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond includes: Obtaining a first maximum tolerance value of absorption intensity corresponding to the carbon-hydrogen bond, and based on a magnitude relationship between the first absorption intensity and the first maximum tolerance value of absorption intensity, obtaining a curing state corresponding to the resin structure layer; And / or, obtaining a second maximum tolerance value of absorption intensity corresponding to the carbon-carbon double bond, and based on the magnitude relationship between the second absorption intensity and the second maximum tolerance value of absorption intensity, obtaining a curing state corresponding to the resin structure layer.

6. The testing method according to claim 5, characterized in that: The resin structure layer includes a plurality of substructure layers stacked in sequence; the detection of the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer includes: Detecting the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in each of the substructure layers; The step of determining the curing state of the resin structure layer based on the detected absorption intensity of the characteristic peak corresponding to the target chemical bond includes: Based on the absorption intensity of the characteristic peak of the target chemical bond corresponding to each of the substructure layers, obtaining the curing state corresponding to the resin structure layer; The carbon-hydrogen bonds in different substructure layers correspond to first absorption intensity maximum tolerance values ​​of different sizes, and the carbon-carbon double bonds in different substructure layers correspond to second absorption intensity maximum tolerance values ​​of different sizes.

7. The testing method according to claim 6, characterized in that: The multiple substructure layers include a lens layer, and a planarization layer located on a side of the lens layer away from the display panel; Among them, the maximum tolerance value of the first absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the first absorption intensity corresponding to the planarization layer; and / or the maximum tolerance value of the second absorption intensity corresponding to the lens layer is greater than the maximum tolerance value of the second absorption intensity corresponding to the planarization layer.

8. The testing method according to any one of claims 5 to 7, characterized in that: The detecting of the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer includes: irradiating the resin structure layer with infrared light to obtain an infrared spectrum of the resin structure layer; Based on the infrared spectrum, the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer is obtained.

9. The testing method according to claim 8, characterized in that: The step of obtaining the absorption intensity of the characteristic peak corresponding to the target chemical bond contained in the resin structure layer based on the infrared spectrum includes: The infrared spectrum is input into a recognition network to obtain the absorption intensity of the characteristic peak corresponding to the target chemical bond; wherein the recognition network is obtained by training a preset network using infrared spectrum samples corresponding to a plurality of resin structure layer samples as training samples; And / or, the infrared spectrum is output and displayed, and the absorption intensity of the characteristic peak of the target chemical bond input into the infrared spectrum is obtained.

10. The testing method according to claim 1, characterized in that: The step of guiding the target quality inspection test based on the detection result includes: Based on the detection result, predicting the damage degree value of the resin structure layer in the target quality inspection test; Based on the damage degree value, guidance information is output, where the guidance information is at least used to indicate whether to perform the target quality inspection test.

11. The testing method according to claim 1, characterized in that: The method further comprises: Based on the detection result, determining whether the resin structure layer meets the target quality inspection test; If not, obtaining manufacturing parameters of the resin structure layer, and updating the manufacturing parameters based on the detection result, and sending the updated manufacturing parameters to the target device to instruct to form the resin structure layer according to the new process parameters; The manufacturing parameters include at least one of curing time and ultraviolet light irradiation energy.

12. The testing method according to claim 11, characterized in that: The updating of the manufacturing parameters based on the detection result includes: Acquire a parameter mapping table corresponding to the resin structure layer, wherein the parameter mapping table includes a curing state of the resin structure layer obtained by simulating different manufacturing parameters, and a damage degree value of the resin structure layer in different curing states under the target quality inspection test; Based on the parameter mapping table, a target manufacturing parameter is obtained when the resin structure layer reaches a target curing state, wherein the target curing state is a condition that the damage degree value in the target quality inspection test is less than a preset degree value; The manufacturing parameters are updated based on the detection results and the target manufacturing parameters.

13. The testing method according to claim 1, characterized in that: Before the target quality inspection test, before the curing state of the resin structure layer is detected, the method further includes: Acquiring manufacturing parameters of the resin structure layers in a plurality of the display devices to be tested; Based on the manufacturing parameters, clustering the plurality of display devices into a plurality of sets, wherein the display devices in the same set correspond to the same manufacturing parameters; Sampling some display devices from the set, detecting the curing state of the resin structure layer of the some display devices, and obtaining sample detection results; The sample detection result is used as the detection result of the curing state of the resin structure layer of each of the display devices in the set.

14. A detection system, characterized in that: The detection system comprises: A plurality of quality inspection and testing modules, wherein different quality inspection and testing modules are used to test different objects of the display device; wherein the display device comprises a display panel and a resin structure layer, wherein the material of the resin structure layer comprises polyester resin and is configured to refract light emitted from the display panel; A pre-test module, used for detecting the curing state of the resin structure layer; A transmission module, connected to the pre-test module and a target quality inspection test module among the plurality of quality inspection test modules, for transmitting the display device to the target quality inspection test module when the test result indicates that the resin structure layer satisfies the target quality inspection test; The target quality inspection test is a test for the risk of damage to the resin structure layer.

15. The detection system according to claim 14, characterized in that: The pre-test module includes: An infrared light transmitter, used for emitting infrared light to the resin structure layer; A receiver, used for recording an infrared spectrum after the resin structure layer absorbs the infrared light; An analysis module is connected to the receiver and is used to obtain the curing state of the resin structure layer based on the infrared spectrum.

16. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the test method according to any one of claims 1 to 13 when executed.

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