Method of electrostatic deposition
AssigneeKoninklijke Philips Electronics N.V.
InventorsJohannes Marra, Stephen Battersby, Dirkjan Van Dam
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Abstract
A process for the electrostatic deposition, in particular of LCD color filters (9) or spacer material (15) on a substrate (1) of a display, involves the successive electrostatic deposition of the red, green and blue color material (8) and the black matrix material (14) or spacer material. The aerosolized material having a unipolar charge in the deposition chamber experiences an electrostatic force of controlled magnitude that is directed (preferably antigravitationally) towards the substrate surface by means of an (externally) applied electrostatic field.
Claims12
A method of depositing aerosolized particles from a carrier gas stream on a first side of a substrate comprising the steps of
- electrically charging said particles
- directing said charged particles in the carrier gas stream via at least one outlet towards the substrate while maintaining an electric field between the substrate and a deposition electrode near the outlet.
Dependencies are inferred from the claim text.