公开(公告)号：WO0156050A3

公开(公告)日：2002-04-25

申请号：PCT/US0100712

申请日：2001-01-08

Applicant: CANDESCENT INTELLECTUAL PROP

Inventor： PAN LAWRENCE S ,  SCHROPP DONALD R JR ,  CHARAKOV VASIL M ,  O'REILLY JOHN K ,  HOPPLE GEORGE B ,  SPINDT CHRISTOPHER J ,  BARTON ROGER W ,  NYSTROM MICHAEL J ,  RAMESH RAMAMOORTHY ,  DUNPHY JAMES C ,  PEI SHIYOU ,  NARAYANAN KOLLENGODE

IPC: H01J29/87 ,  H01J5/03 ,  H01J9/24 ,  H01J29/02 ,  H01J29/86 ,  H01J31/12

CPC classification number: H01J9/242 ,  H01J29/028 ,  H01J29/864 ,  H01J31/123 ,  H01J61/30 ,  H01J61/305 ,  H01J2329/864 ,  H01J2329/8645

Abstract: The present invention provides a spacer assembly (100) which is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly (100) when the spacer assembly (100) is subjected to flat panel display operating voltages. The present invention further provides a spacer assembly (100) which accomplishes the above achievement and which does not degrade severely when subjected to electron bombardment. The present invention further provides a spacer assembly (100) which accomplishes both of the above-listed achievements and which does not significantly contribute to contamination of the vacuum environment of the flat panel display or be susceptible to contamination that may evolve within the tube. Specifically, in one embodiment, the present invention is comprised of a spacer structure (102) which has a specific secondary electron emission coefficient function associated therewith. The material comprising the spacer structure (102) is tailored to provide a secondary electron emission coefficient of approximately 1 for the spacer assembly (100) when the spacer assembly (100) is subjected to flat panel display operating voltages.