LCD screen laser machine
2、 Application scenario: Key processes covering the entire industry chain
1. Pre process: Laser Annealing (ELA)
The core process of LTPS (Low Temperature Polycrystalline Silicon) liquid crystal screen is to perform instantaneous high-temperature treatment on amorphous silicon thin films using excimer laser to form a high mobility polycrystalline silicon layer.
2. Mid stage process: precision cutting and drilling
Glass substrate cutting: Use UV laser to cut and slice LCD motherboards.
FPC soft board processing: Drilling and slotting on flexible circuit boards with an accuracy of ± 5 μ m.
Polarizing film cutting: achieving dust-free rapid prototyping through infrared laser (IR Laser).
3. Direction of technological upgrade
Ultrafast laser popularization: Femtosecond/picosecond pulse lasers can further reduce the heat affected zone, The demand for ultra fine processing such as LED.
Composite process integration: The linkage of laser and plasma cleaning, AOI detection and other modules promotes the implementation of fully automated production lines.
4. Market demand analysis
According to the 2023 Global Display Panel Industry Report, it is predicted that by 2027, the global market size of LCD laser equipment will exceed 4.5 billion US dollars, with a compound annual growth rate of 12.3%. The driving factors include:
Repair of large-sized televisions, TV、 Splicing screen, curved screen, OLED flexible screen penetration: products such as foldable phones and curled TVs are driving new processing demands.
Vehicle display explosion: The demand for large-sized and irregular central control screens has surged, and laser processing has become a necessity.
Localization substitution acceleration: Chinese manufacturers are gradually breaking through in core component fields such as light sources and motion control.
Product application
Mainly under the mirror through the high frequency (30 HZ) pulse laser beam on the LCD screen inside the micron size of the semiconductor circuit components cutting and trim especially passivation layer (silicon oxide / nitride) and metal interconnect to the role of line maintenance, the device can be used for different target material design digital display adjustment laser pulse energy and interface optional wavelength.
Use range of the equipment
Scope, (TV, PC, touch teaching machine, splicing, notebook, digital, car display products) LCD internal line defects caused LCD screen window, vertical line, line, cross, half line, the size of the head line or LCD screen built-in GOA structure caused by black screen, gray screen, net coarse, picture jitter, level uneven display, and a series of screen substrate internal line problems caused by fault phenomenon.
Scope 2. Abnormal vertical line, no display, and other adverse faults occurred in TFT \ OLED mobile phone screen and wearable products.
Laser type: single modulation Q (crystal 5MM) semiconductor laser ND-YAG, specific parameters are as follows:
Guangzhou weicai electronic technology Co., Ltd.
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