Patent ID: 6827240
Filing Date: 2004-12-07
Classification: G02F,H01L

Abstract:
A liquid crystal dispensing apparatus, comprising:a liquid crystal material container filled with liquid crystal material a gas supply at an upper portion of the liquid crystal material container for pressurizing the liquid crystal material with gas; a needle seat positioned at a lower portion of the liquid crystal material container and having a discharge hole for discharging the liquid crystal material of the liquid crystal material container; a needle having first and second ends positioned within the liquid crystal material container to be movable along upward and downward directions; a first spring positioned at a first end of the needle; a solenoid coil positioned at the upper portion of the liquid crystal material container; a magnetic bar positioned adjacent to the first end of the needle within the solenoid coil for moving the needle along the upward direction by generating a magnetic force when power is applied to the solenoid coil; a second spring positioned around the magnetic bar within the magnetic coil; and a nozzle positioned at the lower portion of the liquid crystal material container for dispensing the liquid crystal material from the liquid crystal material container onto a surface of a substrate.