1, Overview of LCD Screen Technology
Liquid crystal screen (LCD) is a widely used display technology, whose core principle is to use liquid crystal materials to change the transmittance of light under the action of an electric field, thereby controlling the display state of pixels. The manufacturing process of LCD screens is complex, involving numerous precision materials and technologies, including glass substrates, color filters, polarizers, LCD materials, backlight modules, and driver ICs.
2, The Importance of National Industrialization Technology
National industrialization technology plays a significant role in enhancing the independent and controllable capabilities of the domestic LCD screen industry, reducing costs, and improving market competitiveness. Through localization, dependence on external supply chains can be reduced, industrial security can be ensured, and domestic research and innovation in related technologies can be promoted.
3, Progress in domestication technology of industrial LCD screens
1. Glass substrate: Glass substrate is one of the key raw materials for LCD screens. Domestic companies such as Rainbow Corporation and Dongxu Group have already occupied a place in the glass substrate market of G8.5 and below generation lines, but G10.5 glass substrates still need to break through.
2. Polarizer: Polarizer is a key component that controls the direction of light. The localization process of domestic polarizing films is smooth, and diffusion films, reflective films, etc. have been localized. However, there is still a gap between domestic manufacturers and international giants in the high-end multifunctional brightening film market.
3. Liquid crystal materials: Liquid crystal materials are the core of liquid crystal screens. The domestication rate of domestic LCD materials is about 60%, with major manufacturers including HeCheng Display, Chengzhi Yonghua, and 800 million spacetime. Domestic enterprises have made technological breakthroughs in high-performance TFT liquid crystal materials, and their market share is gradually increasing.
4. Backlight module: The backlight module provides a light source for the LCD screen. The localization level of domestic backlight modules is relatively high, but in the upstream optical base film field, domestic manufacturers are accelerating their layout.
5. Driver IC: The driver IC is an integrated circuit that controls the display of a liquid crystal screen. Domestic enterprises have also made some progress in the field of driver ICs, but there is still room for improvement compared to international advanced levels.
