Device and method for detecting liquid leakage on the surface of a liquid crystal screen

Abstract

The invention discloses a liquid leakage detection device and method on the surface of a liquid crystal screen, belonging to the technical field of liquid leakage detection, comprising a base, a table top, a fixing mechanism, a lifting mechanism, a side bracket and an air pressure detection mechanism, and the four corners of the upper end of the base are fixed by bolts A ring-shaped table top is connected, and a fixing mechanism is slidably connected to the hollow groove in the middle of the table top, and a gravity sensor is arranged on the upper surface of the fixing mechanism. Use the silicone suction cup to absorb the upper surface of the LCD screen and apply a certain suction force. If the LCD screen leaks, it can be known from the value change of the pressure sensor. There is no obvious leakage for the tiny gaps, damages or weak points on the surface of the LCD screen, but it has been In the case of micro-leakage or a great risk of leakage, the position of the leak can be accurately determined according to the position of multiple rods or detection units, preventing the liquid from directly leaking outside and causing environmental pollution.

Description

technical field [0001] The invention relates to the technical field of liquid leakage detection, in particular to a liquid leakage detection device and method on the surface of a liquid crystal screen. Background technique [0002] Liquid crystal display (LCD) A type of display used in digital clocks and many portable computers. LCD displays use two sheets of polarized material with a liquid crystal solution between them. Passing an electric current through the liquid rearranges the crystals so that light cannot pass through them. However, the liquid crystal display is fragile, and it is easy to cause cracks due to impact during production, transportation and use, resulting in the leakage of the liquid crystal solution. The existing liquid crystal solution leakage detection is directly observed by the naked eye, but for There is no obvious leakage in tiny gaps, damage or weakness, but micro-leakage or great leakage risk cannot be visually observed with the naked eye, and i...

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Problems solved by technology

[0003] The object of the present invention is to provide a device and method for detecting liquid leakage on the surface of a liquid crystal screen. The upper surface of the liquid crystal screen is adsorbed by a silica gel suction cup, and a certain suction force is applied. If the liquid crystal screen leaks, it can be known through the numerical change of the pressure sensor. There are tiny gaps, damage or weakness on the surface, there is no obvious leakage, but there has been a slight leakage or a great risk of leakage, and the location of the leakage can be accurately determined according to the position of multiple rods or detection units to prevent the liquid from directly leaking. Environmental pollution caused by external leakage, to solve the problems raised in the above-mentioned background technology

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