公开(公告)号：JP2000212555A

公开(公告)日：2000-08-02

申请号：JP31664999

申请日：1999-11-08

Applicant: PIXTECH SA

Inventor： VALERO REMI

IPC: C09K11/00 ,  C09K11/02 ,  C09K11/08 ,  G09F9/00 ,  H01J9/227 ,  H01J29/28

Abstract: PROBLEM TO BE SOLVED: To carry out a treatment under specified conditions after incorporating phosphor particles in a serigraphic binder solution to firmly and efficiently form a coat of lead oxide or the like on the surface of a phosphor deposited on a substrate to afford an anodic conductive track for flat display screens. SOLUTION: The subject method for enclosing a phosphor comprises the following procedure: a solution of a serigraphic binder such as polyvinyl alcohol containing lead nitrite or indium nitrite is incorporated with particles of a phosphor selected from the group consisting of Gd2O2S: Tb, Y2SiO5: Tb, Y2SiO5: Ce, Y2O3: Eu and ZnO: Zn followed by depositing the phosphor on a substrate by serigraphy and then making an annealing at 400-500 deg.C for several hours to form a lead oxide or indium oxide coat on the surface of the phosphor deposited as described above; wherein it is preferable that 10 g of the solution contains 6-10 g of the phosphor and the solution is incorporated with a defoaming agent as well.

公开(公告)号：FR2785719B1

公开(公告)日：2001-01-19

申请号：FR9814226

申请日：1998-11-09

Applicant: PIXTECH SA

Inventor： VALERO REMI

IPC: C09K11/00 ,  C09K11/02 ,  C09K11/08 ,  G09F9/00 ,  H01J9/227 ,  H01J29/28 ,  H01J1/70 ,  H01J31/12

Abstract: Formation of zinc oxide or indium oxide layer on the surface of a luminophor deposited on a substrate involves adding the luminophor grains to an aqueous solution containing dissolved zinc nitrate or indium nitrate, polyvinyl alcohol (serigraphic binder) and antifoaming agent in water, deposition, and annealing. 1-0.6g of the nitrate and 6-10g of the luminophor are dissolved in 10g of the solution. The luminophor is selected from the following: Gd2O2S:Tb, Y2SiO5:Tb, Y2SiO5:Ce, Y2O3:Eu and ZnO:Zn. Annealing is carried out at 400-500 degrees C for several hours.

公开(公告)号：FR2785719A1

公开(公告)日：2000-05-12

申请号：FR9814226

申请日：1998-11-09

Applicant: PIXTECH SA

Inventor： VALERO REMI

IPC: C09K11/00 ,  C09K11/02 ,  C09K11/08 ,  G09F9/00 ,  H01J9/227 ,  H01J29/28 ,  H01J1/70 ,  H01J31/12

Abstract: Formation of zinc oxide or indium oxide layer on the surface of a luminophor deposited on a substrate involves adding the luminophor grains to an aqueous solution containing dissolved zinc nitrate or indium nitrate, polyvinyl alcohol (serigraphic binder) and antifoaming agent in water, deposition, and annealing. 1-0.6g of the nitrate and 6-10g of the luminophor are dissolved in 10g of the solution. The luminophor is selected from the following: Gd2O2S:Tb, Y2SiO5:Tb, Y2SiO5:Ce, Y2O3:Eu and ZnO:Zn. Annealing is carried out at 400-500 degrees C for several hours.