Laser processing method and corresponding laser machining apparatus

A laser processing method and laser processing technology, applied in the TFT field, can solve problems such as cracking and reducing the bending strength of glass materials, and achieve the effects of improving temperature differences, avoiding micro cracks, and reducing thermal expansion differences
CN101134263AInactive Publication Date: 2008-03-05FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FOXSEMICON INTEGRATED TECHNOLOGY (SHANGHAI) INC
Publication Date
2008-03-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to laser machining process and equipment. The laser machining process includes the following steps; setting the workpiece onto the working bench, heating the machined area of the workpiece to preset temperature, and machining the heated machined area with laser beam. The laser machining equipment includes one working bench for bearing the workpiece, one laser source to emit laser beam, and one heating source to preheat the machined area of the workpiece to preset temperature and reduce the temperature difference between the temperature of the machined area and the high temperature the laser beam generates.
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Description

technical field

[0001] The invention relates to a laser processing method, in particular to a processing method for brittle materials such as liquid crystal display (TFT-LCD) (Thin Film Transistor, TFT for short; Liquid Crystal Display, LCD for short) glass panel. Background technique

[0002] With the continuous development of display technology, liquid crystal display devices (TFT-LCD) have been widely used in consumer fields due to their own characteristics. It is regarded as a strong opponent to replace the traditional cathode ray tube (Cathode Ray Tube, CRT for short) display device.

[0003] A liquid crystal display device is generally composed of two glass substrates, liquid crystal contained in the two glass substrates and a number of circuits. The liquid crystal can change the arrangement mode under the influence of the electric field to complete the display operation. In order to form liquid crystal display panels of different sizes, it is generally necessary to ...

Claims

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