How does Hot-rolled Molybdenum Plate meet the production requirements of TFT-LCD?
Meeting the Challenges of Large Panels
With the continuous increase in panel size, from the early 27 inches to the current 85 inches, 98 inches, or even larger sizes, the size requirements for production templates are also getting higher and higher. For the G10.5 generation panel production line, the size of the glass substrate reaches 2940 × 3370 mm, and the length of the corresponding molybdenum template also needs to reach 3430mm.
Making hot-rolled molybdenum plates of this length is not easy. The problems of end cracking and uneven microstructure are easy to occur in the production of a super-long plate by the rolling process of. Luoyang High-tech Sifeng Electronic Materials Co., Ltd. and other enterprises have successfully solved the production problem of ultra-long molybdenum plates by improving the rolling process, increasing the opening temperature from 1400 ℃ to 1600 ℃, and adopting cross-rolling technology, providing key supporting materials for the production of large-size TFT-LCD panels.
Precision of high-generation line
With the improvement of the TFT-LCD panel generation line, the pixel density is getting higher and higher, and the accuracy requirements for production templates are also becoming increasingly stringent. From the G5 to G10.5 generation, the pixel size has been reduced from tens of microns to several microns, and the alignment accuracy requirements of the template have also been increased to the sub-micron level accordingly.
Hot-rolled molybdenum plates can achieve high precision throughout the production cycle through their uniform microstructure and good dimensional stability. Whether it is the lithography process at high temperature or the sputtering process at high pressure, the hot-rolled molybdenum plate can achieve its original precision and shape, which provides a reliable guarantee for the precise manufacturing of TFT-LCD.
Adapt to the diverse needs of different processes
The diversity of TFT-LCD manufacturing processes puts forward higher requirements for template materials. Different process steps and different material deposition require templates with different specifications and properties.
A hot-rolled molybdenum plate can be prepared with different process requirements by adjusting rolling process parameters and subsequent processing methods. For example, the grain size and mechanical properties of molybdenum plates can be changed by rolling temperature and deformation rate; Through surface treatment, different roughness and surface states can be used to adapt to different process requirements.
With the continuous development of display technology, TFT-LCD, OLED, MicroLED, and other technologies are constantly iterating, and the requirements for production materials are also constantly improving. The future hot-rolled molybdenum plate template technology will move towards higher precision, larger size, and a more intelligent direction.
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