Spacer spraying system, spacer spraying method and liquid crystal display panel

Abstract

A spacer spraying system and spacer spraying method are provided which are capable of spraying spacers uniformly in a liquid crystal display panel forming region on a substrate. A stage includes a main stage section having a predetermined size and an auxiliary stage section supported in the main stage section so as to be slid in the main stage section or another auxiliary stage section having a structure in which the auxiliary stage section can be connected to the main stage section. By making the auxiliary stage section be slid in the main stage section or be connected to the main stage section according to a size of a substrate mounted on the stage, a size of the stage is made changeable so that a distance between an edge portion of the stage and a liquid crystal display panel forming region existing near the edge portion of the stage falls within a predetermined range.

1 . A spacer spraying system comprising a spraying nozzle, a chamber, and a stage being supported within said chamber, for spraying spacers onto a substrate placed on said stage by using said spraying nozzle comprising:
 a main stage section having a predetermined size, at outer edge portion of which at least one first attachment portion is provided; and   a plurality of auxiliary stage sections each having a different size, and at inner edge portion of each of which at least one second attachment portion is provided;   wherein an auxiliary stage section selected arbitrarily out of said plurality of said auxiliary stage sections is attached to said main stage section, by associating said at least one second attachment portion of said auxiliary stage section with said at least one first attachment portion of said main stage section, whereby said stage is extendable to a desired size.   
   
   
       2 . The spacer spraying system according to  claim 1 , wherein an insulator is placed between said main stage section and said auxiliary stage section so that said main stage section and said auxiliary stage section have electric potentials being different from each other. 
   
   
       3 . The spacer spraying system according to  claim 1 , wherein said substrate is provided with a plurality of regions in each of which a liquid crystal display panel is formed and wherein said auxiliary stage section is selected so that a distance between a peripheral edge portion of said stage and each of said regions existing near the peripheral edge portion of said stage falls within a predetermined range. 
   
   
       4 . A liquid crystal display panel in which the spacers are sprayed on at least one of a pair of substrates facing each other by using the spacer spraying system stated in  claim 1 .