Method for cutting a liquid crystal display panel
A technology of liquid crystal display panel and cutting method, which is applied in the direction of instruments, nonlinear optics, optics, etc., and can solve problems such as waste of material cost, poor display lines on the screen, and short circuit at the bottom cutting
Active Publication Date: 2019-10-29
星源电子科技(深圳)有限公司
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Problems solved by technology
[0003] However, there are three major technical problems when cutting large-size liquid crystal display panels into small-size liquid crystal display panels: 1. The bad glass in the original liquid crystal display panel is cut open and there is liquid crystal leakage; 2. TFT crystals will be cut during cutting , resulting in a short circuit at the bottom cutting part, resulting in poor lines when the screen is displayed; 3. The glass in the original liquid crystal display panel has a polarizer. Because of the polarizer, the cutting wheel cannot directly touch the glass surface during cutting, and the polarizer needs to be removed. The glass can only be cut after the polarizer is torn off, and tearing off the polarizer not only wastes material costs, but also causes undesirable phenomena such as foreign matter on the glass surface formed by UV curing glue in the subsequent process
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Embodiment 1
[0019] Such as figure 1 and figure 2 As shown, a liquid crystal display panel cutting method comprises the following steps:
[0020] Step S1: Cut the polarizer; first correct the positioning of the slicing mold, the slicing mold is equipped with a scale, adjust the position of the blade to cut the polarizer according to the cutting size of the LCD panel, and set the distance between the two blades of the slicing head. The distance between the two blades is preferably 2mm, fixed Then put it into the LCD panel to cut the polarizer, then tear off the cut polarizer to expose the glass surface;
[0021] Step S2: Precise cutting; ① Positioning; put the liquid crystal display panel with the polarizer removed on the cutting platform of the cutting machine, and fix it by vacuum adsorption. Find and display the image of the pixl unit by fine-tuning the CCD of the machine, so that the cutting position 1 avoids the TFT crystal Position 2, slightly move the cutter head to the pixl light...
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The invention discloses a cutting method of a liquid crystal display panel and belongs to the technical field of liquid crystal display. Through the process steps of polarizer cutting, precise cutting, seal solidification and detection testing in sequence, the three technical problems are solved of cut liquid crystal loss, TFT chip bottom cutting position loop short circuit and incomplete tearing-down polarizer cutting, liquid crystal display panels with unfavorable D gauge and large-size scrapped panels are cut and transformed into small-size A gauge screens, original defective products with low value or scraped products are transformed into good products with high prices, a waste to treasure change is achieved, and the value is recreated, which has a important significance.
Description
technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for cutting a liquid crystal display panel. Background technique [0002] The liquid crystal display panel is composed of two glass plates, and the interlayer in the middle is a crystal droplet with a thickness of about 5 microns. Liquid crystal display panels are important components of liquid crystal displays. When manufacturing or using liquid crystal display panels, there may be defective D-standard LCD panels and large-size scrapped panels. How to transform defective or scrap products with low value into Good products with higher prices are of great significance. [0003] However, there are three major technical problems when cutting large-size liquid crystal display panels into small-size liquid crystal display panels: 1. The bad glass in the original liquid crystal display panel is cut open and there is liquid crystal leakage; 2. TFT crystals will ...
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IPC IPC(8): G02F1/13G02F1/1333
CPCG02F1/1303G02F1/133351
Inventor 蔡杏彬王惠奇
Owner 星源电子科技(深圳)有限公司