Patent ID: 7701547
Filing Date: 2010-04-20
Classification: G02F

Abstract:
1. A liquid crystal dripping device for manufacturing a liquid crystal display panel which drips liquid crystal onto one of substrates of a pair, and pastes said substrate and another substrate of the pair together using a seal material, said device comprising: a closed housing for performing in a series of pre-treatment steps prior to said dripping of said liquid crystal onto one of said substrates, wherein said housing comprises a heating element for vacuum heat heating said liquid crystal in a decompressed environment to remove organic substances mixed in said liquid crystal, and is arranged to maintain said liquid crystal in a vacuum state for removing moisture or gas constituents mixed in said liquid crystal, and a filtration system comprising a filter having a bore diameter of 0.5 micrometer at most and an ion adsorbing member for removing foreign substances mixed in said liquid crystal; a liquid crystal discharging unit connected to said closed housing and arranged to drip said liquid crystal, after said series of pretreatment has been applied thereto, onto one of said substrates, wherein said liquid crystal discharging unit is covered with a container in which pure nitrogen gas is introduced, and said liquid crystal discharging unit is provided with a filtration system comprising a filter having a bore diameter of 0.5 micrometer at most and an ion adsorbing member for removing foreign substances mixed in said liquid crystal during said dripping of said liquid crystal.