COMPENSATION POUR ZONES EXPOSEES DE MANIERE INCORRECTE DANS DES IMAGES NUMERIQUES
| N° de brevet: |
EP1911267 (A1) |
| Date de publication: |
2008-04-16 |
| Inventeur(s): |
ROGERS SEAN SCOTT [US]; |
| Demandeur(s): |
QUALCOMM INC [US]; |
| Classification: |
H04N5/235; |
| N° de demande: |
EP20060789091 20060731 |
| Numéro(s) de priorité: |
WO2006US29907 20060731;US20050193250 20050729 |
To provide an electromagnetic wave shielding film for a PDhaving a low luminous reflectance even without providing a protective film, and a protective plate for a PDhaving a low luminous reflectance using the electromagnetic wave shielding film for a PDP. An electromagnetic wave shielding film 10, which comprises a substrate 11 and an electroconductive film 12, wherein the electroconductive film 12 has a multilayer structure in which (n+1) (wherein n is an integer of from 3 to 5) inorganic layers 12a having a refractive index of from 1.55 to 2.5 and n metal layers 12b are alternately laminated from the substrate 11 side; each inorganic layer 12a is a layer containing at least one member selected from a metal oxide, a metal nitride and a metal oxynitride; each metal layer 12b is a layer made of pure silver or a silver alloy; and the second to n-th metal layers from the substrate are thicker than the first metal layer from the substrate, is used.
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