Patent ID: 8726836

Claim:
A liquid crystal coating apparatus, characterized in that: the liquid crystal coating apparatus comprises: a plurality of liquid crystal coating devices configured to coat a liquid crystal on a substrate, wherein the liquid crystal coating devices are or slit coating heads; at least one real-time detector disposed at one side of the liquid crystal coating devices configured to real-time detect the liquid crystal coated on the substrate and output a detection signal; and a controller configured to control the liquid crystal coating devices according to the detection signal, wherein the liquid crystal coating apparatus further comprises a plurality of measuring cylinders, a pumping device and a liquid crystal tank, and the measuring cylinders are connected to the liquid crystal coating devices respectively configured to provide the liquid crystal to the liquid crystal coating devices, and the pumping device is connected between the measuring cylinders and the liquid crystal tank for pumping the liquid crystal from the liquid crystal tank to the measuring cylinders, and wherein the controller adjusts a moving speed of the liquid crystal coating devices, a pressure of the measuring cylinders, a slit width of the slit coating heads or a pitch between each two of liquid crystal units by calculating a liquid crystal amount for the liquid crystal units and a moving distance in coating.