公开(公告)号：CZ234394A3

公开(公告)日：1995-05-17

申请号：CZ234394

申请日：1994-09-26

Applicant: THOMSON CONSUMER ELECTRONICS

Inventor： RIDDLE GEORGE HERBERT NEEDHAM ,  DATTA PABITRA ,  FRIEL RONALD NORMAN ,  MCCARTHY DENNIS ROBERT ,  MOSCONY JOHN JOSEPH ,  POLINIAK EUGENE SAMUEL ,  RITT PETER MICHAEL ,  SIMMS ROBERT EDWARD ,  STEINMETZ CARL CHARLES ,  STORK HARRY ROBERT ,  WETZEL CHARLES MICHAEL

IPC: H01J9/20 ,  B05B5/047 ,  G03C5/00 ,  G03G15/08 ,  H01J9/22 ,  H01J9/227

Abstract: An apparatus (200) for developing a latent image formed on a photoreceptor, which is deposited on an interior surface of a faceplate panel (12) of a CRT display device (10), is disclosed. The developing apparatus includes a developing chamber (202), having a support surface (204) for supporting the panel, a screen structure material reservoir (222) for storing, deagglomerating and feeding the screen structure material (226), and a triboelectric gun assembly (236) communicating with the reservoir. The gun assembly triboelectric charges and imparts a desired charge polarity to the screen structure material. The gun assembly further includes at least one material dispersing nozzle (238) spaced from the support surface, for distributing the charged material for deposition onto the latent image.