Method for detecting performance of ITO (Indium Tin Oxide) conductive glass based on regional optical induction

Abstract

The invention relates to an ITO conductive glass performance detection method based on regional optical induction, which comprises the following steps: uniformly dividing ITO conductive glass into a plurality of optical induction regions, and sequentially marking each optical induction region according to a sequence; randomly selecting at least three adjacent optical sensing areas, and sequentially connecting the selected optical sensing areas by taking the centers of the selected optical sensing areas as end points to form a light transmission detection area; measuring the light transmission area S of the light transmission detection area, and detecting a plurality of groups of light transmission parameters of the light transmission detection area by the acquisition assembly to form a light transmission matrix A; performing iterative operation on the light transmission area S and the multiple groups of light transmission parameters in the light transmission matrix A by adopting an iterative operation formula to obtain a mapping parameter of the light transmission area S to the light transmission matrix A; and judging the light transmission performance of the ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A.

Description

Technical field:

[0001] The invention relates to a method for detecting properties of ITO conductive glass based on regional optical induction. Background technology:

[0002] ITO conductive glass is made by coating a layer of indium tin oxide film on a soda-lime-based or silicon-boron-based substrate glass using the magnetron sputtering method. The main component of the ITO film is indium tin oxide. When the thickness is only a few thousand angstroms, indium oxide has high transmittance and tin oxide has strong conductivity. ITO conductive glass is divided into high-resistance glass, ordinary glass and low-resistance glass according to resistance. High-resistance glass is generally used for electrostatic protection and touch screen production; ordinary glass is generally used for TN liquid crystal displays and electronic anti-interference; low-resistance glass is generally used for STN liquid crystal displays and transparent circuit boards.

[0003] Generally speaking, the ITO layer is prone to ion replacement reaction in active positive ion solution to form other reaction substances with poor conductivity and transmittance. Therefore, during the processing, try to avoid placing it in active positive ion solution for a long time. At the same time, the light transmittance of ITO conductive glass should be tested after production and preparation to determine the performance of ITO conductive glass.

[0004] However, most of the existing detection methods perform corresponding detection on the light transmittance of ITO conductive glass at the global level. When there are differences in the light transmittance of different areas of the ITO conductive glass, there will be interference between them, which will produce a large deviation in the detection at the global level, affecting the overall judgment of the light transmittance performance of the ITO conductive glass. At the same time, the detection of the light transmittance of ITO conductive glass at the global level requires testing each area one by one, resulting in a long detection process, low detection efficiency, high labor and time costs, and cannot meet the actual needs of ITO conductive glass performance testing. Summary of the invention:

[0005] The embodiment of the present invention provides an ITO conductive glass performance detection method based on regional optical sensing. The method is reasonably designed. Based on regional division and optical sensing, multiple optical sensing areas are evenly divided and marked on the ITO conductive glass, and multiple optical sensing areas are randomly selected to form a transmittance detection area. The specific transmittance of the transmittance detection area is determined according to the relative mapping relationship between the transmittance area and the transmittance parameter of the transmittance detection area, and the influence of ion replacement interference between different areas of the ITO conductive glass is eliminated. After iterative calculation and regression verification, the accuracy of the detection result is improved. At the same time, compared with the existing one-by-one global detection method, the overall detection steps are simplified, the overall detection efficiency is improved, and the problems existing in the prior art are solved.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A method for detecting the performance of ITO conductive glass based on regional optical sensing, the method comprising the following steps:

[0008] S1, evenly dividing the ITO conductive glass into a plurality of optical sensing areas, and labeling each optical sensing area in sequence;

[0009] S2, randomly selecting at least three adjacent optical sensing areas, and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area;

[0010] S3, measuring the light transmission area S of the light transmission detection area, and the acquisition component detects multiple groups of light transmission parameters of the light transmission detection area and forms a light transmission matrix A;

[0011] S4, performing iterative calculation on the light transmission area S and the multiple groups of light transmission parameters in the light transmission matrix A using an iterative calculation formula to obtain mapping parameters of the light transmission area S to the light transmission matrix A;

[0012] S5, determining the light transmission performance of the ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A.

[0013] Randomly selecting at least three adjacent optical sensing areas and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area comprises the following steps:

[0014] S2.1, determining the number of adjacent optical sensing areas to be selected, and then determining the number of endpoints of the light transmittance detection area;

[0015] S2.2, connecting the endpoints in the corresponding optical sensing areas in sequence according to the labels of the optical sensing areas;

[0016] S2.3, making corrections based on the regular shape to obtain a light transmittance detection area of ​​a standard shape.

[0017] The shape of the light transmittance detection area is trapezoidal, rectangular or triangular.

[0018] A gap is provided between adjacent optical sensing areas, and the gap is used to eliminate interference effects between adjacent optical sensing areas.

[0019] The light transmission area S = (N / 2-1)*S 0 , where N is the number of adjacent optical sensing areas selected, S 0 is the area of ​​each optical sensing area.

[0020] The light transmission parameters in the light transmission matrix A include temperature parameters, illumination parameters and conductivity parameters, that is, the light transmission matrix A=(α, β, γ); the light transmission component includes at least a temperature sensor, a photoelectric sensor and a conductivity sensor.

[0021] The iterative calculation formula is:

[0022]

[0023] Among them, m is the number of iterations, a a m is the mapping parameter of the light transmission area S to the light transmission matrix A at the mth iteration, h is the standard value of the optimal mapping parameter, B is the regression constant, and G is the proportional coefficient to ensure that the mapping parameter will not have a large deviation.

[0024] Determining the light transmission performance of ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A includes the following steps:

[0025] S5.1, D min Represents the minimum mapping parameter value of the light transmission area S and the light transmission matrix A, α 0 , β 0 , γ 0 is the standard parameter related to the light transmission matrix, α max , γ min are the upper and lower thresholds of the relevant parameters, μ and ρ are mapping correction constants, and the light transmission performance parameters are:

[0026]

[0027] S5.2, refer to the light transmission area S and the light transmission matrix A, and calculate the mapping parameter a by combining the iterative calculation formula a m ;

[0028] S5.3, performing regression calculation on the light transmittance performance parameter and the mapping parameter, and obtaining the light transmittance performance of the ITO conductive glass according to the regression calculation result.

[0029] The present invention adopts the above structure, randomly selects at least three adjacent optical sensing areas, and connects them in sequence with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area; evenly divides the ITO conductive glass into multiple optical sensing areas to facilitate the detection of the light transmittance of the ITO conductive glass; iteratively calculates multiple groups of light transmittance parameters through an iterative calculation formula, and obtains the mapping parameters of the light transmittance area S to the light transmittance matrix A in combination with the light transmittance area; and determines the light transmittance of the ITO conductive glass through the mapping parameters of the light transmittance area S and the light transmittance matrix A in combination with regression calculation, which has the advantages of being accurate, practical, simple and efficient. Description of the drawings:

[0030] Figure 1 It is a schematic diagram of the process of the present invention.

[0031] Figure 2 It is a schematic diagram of the layout of the optical sensing area of ​​the ITO conductive glass of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the light transmittance detection area of ​​the present invention.

[0033] Figure 4 It is a structural schematic diagram of the present invention. Specific implementation method:

[0034] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0035] like Figure 1-4 As shown in the figure, a method for detecting the performance of ITO conductive glass based on regional optical sensing comprises the following steps:

[0036] S1, evenly dividing the ITO conductive glass into a plurality of optical sensing areas, and labeling each optical sensing area in sequence;

[0037] S2, randomly selecting at least three adjacent optical sensing areas, and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area;

[0038] S3, measuring the light transmission area S of the light transmission detection area, and the acquisition component detects multiple groups of light transmission parameters of the light transmission detection area and forms a light transmission matrix A;

[0039] S4, performing iterative calculation on the light transmission area S and the multiple groups of light transmission parameters in the light transmission matrix A using an iterative calculation formula to obtain mapping parameters of the light transmission area S to the light transmission matrix A;

[0040] S5, determining the light transmission performance of the ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A.

[0041] Randomly selecting at least three adjacent optical sensing areas and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area comprises the following steps:

[0042] S2.1, determining the number of adjacent optical sensing areas to be selected, and then determining the number of endpoints of the light transmittance detection area;

[0043] S2.2, connecting the endpoints in the corresponding optical sensing areas in sequence according to the labels of the optical sensing areas;

[0044] S2.3, making corrections based on the regular shape to obtain a light transmittance detection area of ​​a standard shape.

[0045] The shape of the light transmittance detection area is trapezoidal, rectangular or triangular.

[0046] A gap is provided between adjacent optical sensing areas, and the gap is used to eliminate interference effects between adjacent optical sensing areas.

[0047] The light transmission area S = (N / 2-1)*S 0 , where N is the number of adjacent optical sensing areas selected, S 0 is the area of ​​each optical sensing area.

[0048] The light transmission parameters in the light transmission matrix A include temperature parameters, illumination parameters and conductivity parameters, that is, the light transmission matrix A=(α, β, γ); the light transmission component includes at least a temperature sensor, a photoelectric sensor and a conductivity sensor.

[0049] The iterative calculation formula is:

[0050]

[0051] Among them, m is the number of iterations, a a m is the mapping parameter of the light transmission area S to the light transmission matrix A at the mth iteration, h is the standard value of the optimal mapping parameter, B is the regression constant, and G is the proportional coefficient to ensure that the mapping parameter will not have a large deviation.

[0052] Determining the light transmission performance of ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A includes the following steps:

[0053] S5.1, D min Represents the minimum mapping parameter value of the light transmission area S and the light transmission matrix A, α 0 , β 0 , γ 0 is the standard parameter related to the light transmission matrix, α max , γ min are the upper and lower thresholds of the relevant parameters, μ and ρ are mapping correction constants, and the light transmission performance parameters are:

[0054]

[0055] S5.2, refer to the light transmission area S and the light transmission matrix A, and calculate the mapping parameter a by combining the iterative calculation formula a m ;

[0056] S5.3, performing regression calculation on the light transmittance performance parameter and the mapping parameter, and obtaining the light transmittance performance of the ITO conductive glass according to the regression calculation result.

[0057] The working principle of the ITO conductive glass performance detection method based on regional optical sensing in the embodiment of the present invention is: based on regional division and optical sensing, multiple optical sensing areas are evenly divided and marked on the ITO conductive glass, multiple optical sensing areas are randomly selected to form a transmittance detection area, and the specific transmittance of the transmittance detection area is determined according to the relative mapping relationship between the transmittance area and the transmittance parameter of the transmittance detection area, and the influence of ion replacement interference between different areas of the ITO conductive glass is eliminated. After iterative calculation and regression verification, the accuracy of the detection result is improved. At the same time, compared with the existing global detection method one by one, the overall detection steps are simplified and the overall detection efficiency is improved.

[0058] In the overall scheme, the detection method includes the following steps: evenly dividing the ITO conductive glass into multiple optical sensing areas, and sequentially numbering each optical sensing area; randomly selecting at least three adjacent optical sensing areas, connecting them in sequence with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area; measuring the light transmittance area S of the light transmittance detection area, collecting multiple groups of light transmittance parameters of the light transmittance detection area by a component and forming a light transmittance matrix A; using an iterative calculation formula to iteratively calculate the light transmittance area S and the multiple groups of light transmittance parameters in the light transmittance matrix A to obtain the mapping parameters of the light transmittance area S to the light transmittance matrix A; and determining the light transmittance performance of the ITO conductive glass based on the mapping parameters of the light transmittance area S and the light transmittance matrix A.

[0059] Specifically, randomly selecting at least three adjacent optical sensing areas and connecting them in sequence with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area includes the following steps: determining the number of selected adjacent optical sensing areas, and then determining the number of endpoints of the light transmittance detection area; connecting the endpoints in the corresponding optical sensing areas in sequence according to the labels of the optical sensing areas; and making corrections based on a regular shape to obtain a light transmittance detection area of ​​a standard shape.

[0060] Since in the present application, the light transmittance detection area adopts a standard regular shape, the light transmittance area of ​​the light transmittance detection area can be easily calculated, which can ensure both calculation accuracy and calculation simplicity; further, the boundary of the standard regular shape will also bring greater convenience to subsequent iterative calculations.

[0061] Generally speaking, the number of optical sensing areas selected is 3-6, so the shape of the light transmittance detection area is a trapezoid, rectangle or triangle, which can meet the actual detection needs.

[0062] The light transmission area S of the light transmission detection area = (N / 2-1)*S 0 , where N is the number of adjacent optical sensing areas selected, S 0 is the area of ​​each optical sensing area.

[0063] Preferably, the light transmission parameters in the light transmission matrix A include temperature parameters, illumination parameters and conductivity parameters, that is, the light transmission matrix A = (α, β, γ); the light transmission component includes at least a temperature sensor, a photoelectric sensor and a conductivity sensor.

[0064] The core innovation of the present application lies in the iterative operation between the light-transmitting area S and multiple sets of light-transmitting parameters in the light-transmitting matrix A. Through multiple iterative operations, accurate mapping parameters are obtained.

[0065] Specifically, the iterative calculation formula is:

[0066]

[0067] Among them, m is the number of iterations, a a m is the mapping parameter of the light transmission area S to the light transmission matrix A at the mth iteration, h is the standard value of the optimal mapping parameter, B is the regression constant, and G is the proportional coefficient to ensure that the mapping parameter will not have a large deviation.

[0068] Generally, the number of iterative operations is 3-6 times, and after calculating multiple sets of light transmission parameters, it is ensured that the obtained mapping parameters meet the actual application.

[0069] After obtaining the mapping parameters, the light transmittance of the ITO conductive glass is determined through calculation.

[0070] Specifically, the light transmission performance of the ITO conductive glass is determined according to the mapping parameters of the light transmission area S and the light transmission matrix A, including the following steps: min Represents the minimum mapping parameter value of the light transmission area S and the light transmission matrix A, α 0 , β 0 , γ 0 is the standard parameter related to the light transmission matrix, α max , γ min are the upper and lower thresholds of the relevant parameters, μ and ρ are mapping correction constants, and the light transmission performance parameters are:

[0071]

[0072] Referring to the light transmission area S and the light transmission matrix A, the mapping parameter a is calculated by combining the iterative calculation formula a m ; The light transmittance performance parameters and mapping parameters are regressed and the light transmittance performance of the ITO conductive glass is obtained according to the regression calculation results.

[0073] After regression calculation and iterative operation, the light transmittance of ITO conductive glass is determined according to the value of the regression parameter. When the regression parameter is in the interval of (0.8, 1.2), it means that the light transmittance of ITO conductive glass is within the qualified range.

[0074] It is particularly noted that gaps are provided between adjacent optical sensing areas, and the gaps are used to eliminate interference effects between adjacent optical sensing areas, thereby further improving the accuracy of detection.

[0075] To summarize, the ITO conductive glass performance detection method based on regional optical sensing in the embodiment of the present invention is based on regional division and optical sensing, and multiple optical sensing areas are evenly divided and marked on the ITO conductive glass. Multiple optical sensing areas are randomly selected to form a transmittance detection area, and the specific transmittance of the transmittance detection area is determined according to the relative mapping relationship between the transmittance area and the transmittance parameter of the transmittance detection area, thereby eliminating the influence of ion replacement interference between different areas of the ITO conductive glass. After iterative calculation and regression verification, the accuracy of the detection results is improved. At the same time, compared with the existing global detection method one by one, the overall detection steps are simplified and the overall detection efficiency is improved.

[0076] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0077] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A method for detecting the performance of ITO conductive glass based on regional optical sensing, characterized in that: The detection method comprises the following steps: S1, evenly dividing the ITO conductive glass into a plurality of optical sensing areas, and labeling each optical sensing area in sequence; S2, randomly selecting at least three adjacent optical sensing areas, and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area; S3, measuring the light transmission area S of the light transmission detection area, and the acquisition component detects multiple groups of light transmission parameters of the light transmission detection area and forms a light transmission matrix A; S4, performing iterative calculation on the light transmission area S and the multiple groups of light transmission parameters in the light transmission matrix A using an iterative calculation formula to obtain mapping parameters of the light transmission area S to the light transmission matrix A; S5, determining the light transmission performance of the ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A.

2. The ITO conductive glass performance detection method based on regional optical sensing according to claim 1 is characterized in that: Randomly selecting at least three adjacent optical sensing areas and sequentially connecting them with the centers of the selected optical sensing areas as endpoints to form a light transmittance detection area comprises the following steps: S2.1, determining the number of adjacent optical sensing areas to be selected, and then determining the number of endpoints of the light transmittance detection area; S2.2, connecting the endpoints in the corresponding optical sensing areas in sequence according to the labels of the optical sensing areas; S2.3, making corrections based on the regular shape to obtain a light transmittance detection area of ​​a standard shape.

3. The ITO conductive glass performance detection method based on regional optical sensing according to claim 2 is characterized in that: The shape of the light transmittance detection area is trapezoidal, rectangular or triangular.

4. The ITO conductive glass performance detection method based on regional optical sensing according to claim 1 is characterized in that: A gap is provided between adjacent optical sensing areas, and the gap is used to eliminate interference effects between adjacent optical sensing areas.

5. The ITO conductive glass performance detection method based on regional optical sensing according to claim 1, characterized in that: The light-transmitting area S=(N / 2-1)*S0, wherein N is the selected number of adjacent optical sensing regions, and S0 is the area of ​​each optical sensing region.

6. The ITO conductive glass performance detection method based on regional optical sensing according to claim 5 is characterized in that: The light transmission parameters in the light transmission matrix A include temperature parameters, illumination parameters and conductivity parameters, that is, the light transmission matrix A=(α, β, γ); the light transmission component includes at least a temperature sensor, a photoelectric sensor and a conductivity sensor.

7. The ITO conductive glass performance detection method based on regional optical sensing according to claim 6 is characterized in that: The iterative calculation formula is: Among them, m is the number of iterations, a a m is the mapping parameter of the light transmission area S to the light transmission matrix A at the mth iteration, h is the standard value of the optimal mapping parameter, B is the regression constant, and G is the proportional coefficient to ensure that the mapping parameter will not have a large deviation.

8. The ITO conductive glass performance detection method based on regional optical sensing according to claim 7, characterized in that: Determining the light transmission performance of ITO conductive glass according to the mapping parameters of the light transmission area S and the light transmission matrix A includes the following steps: S5.1, D min It represents the minimum mapping parameter value between the light transmission area S and the light transmission matrix A. α0, β0, and γ0 are standard parameters related to the light transmission matrix. max , γ min are the upper and lower thresholds of the relevant parameters, μ and ρ are mapping correction constants, and the light transmission performance parameters are: S5.2, refer to the light transmission area S and the light transmission matrix A, and calculate the mapping parameter a by combining the iterative calculation formula a m ; S5.3, performing regression calculation on the light transmittance performance parameter and the mapping parameter, and obtaining the light transmittance performance of the ITO conductive glass according to the regression calculation result.

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