Spacer microparticle spraying apparatus and method for fabricating a liquid crystal display

A spacer particle spraying method

• comprising applying different levels of electric potential respectively to a plurality of electrodes on a substrate, charging spacer particles electrostatically, spraying and disposing said spacer particles selectively on said substrate, and further comprising:
• eliminating oppositely charged spacer particles, said oppositely charged spacer particles being due to intrinsic variation of the material used in forming said spacer particles, and
• wherein said charged spacer particles are disposed selectively on a gap between said electrodes.

A spacer particle spraying method

• comprising applying different levels of electric potential respectively to a plurality of electrodes formed on a substrate and charging spacer particles electrostatically, and selectively spraying and disposing said spacer particles on said substrate,
• wherein a charge member having an electric potential of the same polarity as said spacer particles is located in at least a domain of a surface that extends between a nozzle orifice of a spacer particle delivery nozzle duct and the periphery of said substrate, and
• wherein said spacer particles are disposed selectively on a gap between said electrodes.

A spacer particle spraying method

• comprising spraying plural kinds of spacer particles constituted by dissimilar constituent materials or surface compositions from respective spacer particle tanks with a pressurized gas as the vehicle using a spacer particle spraying apparatus,
• wherein said spacer particle spraying apparatus comprises a spraying chamber for accommodating a substrate, a spacer particle supply means comprising at least one spacer particle delivery nozzle duct and at least one spacer particle tank, both for supplying a spacer particle into said spraying chamber and spraying it onto said substrate, and a voltage application means for applying voltages to a plurality of electrodes formed on said substrate,
• said voltage application means being capable of applying dissimilar levels of voltages to each of said electrodes.