Method and device for cutting liquid crystal screen glass

Abstract

The invention discloses a method and a device for cutting liquid crystal screen glass to solve the problem that the liquid crystal screen glass is broken or has poor sawtooth at the intersection of cutting traces with different directions in the cutting process. The liquid crystal screen cutting method comprises: making the knife wheel cut the first surface of the liquid crystal screen glass along the first direction for the first time, forming a plurality of first cutting marks on the liquid crystal screen glass; The first side is cut along the second direction for the second time. During the second cutting process, when the distance of the knife wheel close to each first cutting mark meets the distance of the knife, the knife wheel is vertical to the liquid crystal screen glass and rises to the jumping height. And make the knife wheel run along the second direction with the jumping height for the stroke of the sum of the knife-out distance and the knife-in distance, and then descend, and continue to cut in the second direction until a plurality of second cutting marks are formed on the first surface; wherein, The second direction is perpendicular to the first direction.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a method and device for cutting glass of a liquid crystal screen. Background technique [0002] In the production process of the liquid crystal cell of the liquid crystal panel, the large piece of liquid crystal screen glass after the box needs to be cut and split into individual liquid crystal cells, and then the liquid crystal is fed into the liquid crystal, pressed and sealed to complete the preparation of the liquid crystal cell. In the LCD glass cutting process, the cutter wheel needs to cut in the X direction and the Y direction on the same side of the LCD glass. For example, the X direction is cut first to form the X direction cutting marks, and then the Y direction is cut. Such as figure 1 As shown, the X-direction of the liquid crystal screen glass 1 has been cut in advance to form cutting marks. When the cutter wheel 2 cuts the liquid crystal screen glass 1 in the...

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Problems solved by technology

[0003] The object of the present invention is to provide a liquid crystal screen glass cutting method and device, to solve the liquid crystal screen glass in the cutting process, the knife wheel in the current cutting process collides with the cutting marks that have been cut first and are different from the current cutting direction. The screen glass is broken or badly jagged at this intersection

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