Patent ID: 6788452
Filing Date: 2004-09-07
Classification: G02F

Abstract:
A process for the preparation of a two-layer display, which process comprises:(a) preparing separately two display layers on conductor plates or films by: (i) forming display cells on separate conductor plates or films; (ii) filling said display cells with a filler material; (iii) overcoating the filled display cells with a positively working photoresist; (iv) selectively opening filled cells and removing the filler from the opened microcups; (v) filling the opened cells with a first display fluid into the opened cells; (vi) sealing said filled cells; and (vii) repeating steps (iv) through (vi) to form display cells filled display fluids of different colors; and (b) laminating two display layers prepared from (a) together, optionally with an adhesive layer.