The valve structure is disposed to control flow of the liquid crystal from the liquid crystal container to the nozzle structure in accordance with a gas pressure provided from {HEAD ~ a gas input} of {TAIL ~ the liquid crystal container} 
The valve structure is disposed to control flow of the liquid crystal from the liquid crystal container to the nozzle structure in accordance with a gas pressure provided from { HEAD ~ a gas input } of { TAIL ~ the liquid crystal container }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL