A type of display used in digital clocks and many portable computers. The LCD display uses two pieces of polarized material, between which is a liquid crystal solution. When an electric current passes through the liquid, it rearranges the crystals so that light cannot pass through them. As a result, each crystal is like a shutter, allowing light to pass through and blocking it. At present, the technology information products of LCD are developing towards the goal of light, thin, short and small.

HCVAC vacuum optical coating machine is applied to lens, lens, vehicle, digital camera, smart phone, projector, filter and other industries. It is specially designed for the production of optical film products with few layers but high production capacity and high efficiency. The antireflection film can reduce the surface reflected light of lens and increase the transmission light. When there are many lenses, they must be low reflection. In addition to multilayer films, double-layer films with specific wavelengths are also used on MgF2 monolayer and laser head, which can be coated on plastic products at low temperature.