Method for counting microparticles on glass
A technology on glass and particles, which is applied in the direction of material analysis, measuring devices, and instruments through optical means, and can solve problems such as the inability to form a large viewing angle, the inability of the voltage dividing capacitor to share the charge of the sub-region, and the impact on the quality of the liquid crystal panel.
Inactive Publication Date: 2019-11-15
无锡领先针测电子有限公司
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Problems solved by technology
When the scanning line stops providing the scanning driving signal and the shared scanning line provides the scanning driving signal, since the ITO potential of the voltage dividing capacitor is equal to the ITO potential of the sub-area, the voltage dividing capacitor cannot share the charge of the sub-area, which makes the voltage division invalid and cannot be pulled. Low sub-region potential, can not form the effect of large viewing angle
Furthermore, the defective pixel will be brighter than the normal pixel, resulting in micro-bright spots in the middle and low gray scales, which will affect the quality of the LCD panel
Method used
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[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] as attached Figures 1 to 4 A described method for counting particles on glass comprises the following steps:
[0024] (S1) Image display: input the image of the sample glass into the computer through the image sampling and processing equipment including a black and white camera, and use the capture function in the EmguCV software to capture the data image in real time and display it in the photo frame of the control diagram (imagebox).
[0025] The pattern processing equipment should be placed in a sealed dark environment, and the image sampling processing equipment should be placed in a light-shielding environment. The image sampling processing equipment includes a light source 1, a glass sample 2, a sampling camera 3, and a data acquisition device 4 and data processing equipment 5; the glass sample 2 and the light source 1 move relatively, the light source ...
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The invention discloses a method for counting microparticles on glass. The method comprises steps as follows: (S1) image display: an image of sample glass is input into a computer by an image samplingprocessing device containing a black and white camera, data images are captured in real time through a capture function in EmguCV software and displayed in a control image box; (S2) image enhancement: each frame of the acquired images is preprocessed, so that particles of the images are more prominent; (S3) particle recognition: white bright points which can be seen directly in the black and white camera are subjected to edge detection, the longest edge of each particle is calculated, and the number of current closed regions is counted; (S4) real-time display: an XY coordinate system is drawnon an interface with X representing time and Y representing the number of particles, and the current number of particles is displayed in real time. The method for counting the microparticles on the glass is high in detection efficiency and good in detection effect.
Description
technical field [0001] The invention relates to a particle detection and statistics method, in particular to a method for counting micron-scale particles on glass. Background technique [0002] For the pixel unit containing the MII capacitor (Media Independent Interface Capacitor) structure, it is easy to have etching residues due to the existence of ITO (indium tin oxide) particles during the manufacturing process, resulting in ITO residues, resulting in sub-region (Sub) The ITO and the ITO of the voltage dividing capacitor are short-circuited. Therefore, when the scanning line provides the scanning driving signal, the data line simultaneously charges the sub-region Sub pixel electrode, the main region (MAIN) pixel electrode and the voltage dividing capacitor. When the scanning line stops providing the scanning driving signal and the shared scanning line provides the scanning driving signal, since the ITO potential of the voltage dividing capacitor is equal to the ITO pote...
Claims
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Login to View More IPC IPC(8): G01N21/95
CPCG01N21/95G01N21/8851G01N2021/9513G01N2021/8858
Inventor 刘建华蒋旭堂吴丰有吕文宝
Owner 无锡领先针测电子有限公司