Cold cathode type flat panel display
OwnerMasakazu Sagawa, Toshiaki Susunoki +1inventors
InventorsMasakazu Sagawa, Toshiaki Susunoki, Mutsumi Suzuki
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Abstract
A second interlayer insulation layer (15) is formed under an upper wiring electrode (16) serving as a power feed line to an upper electrode (13) in each thin-film type electron source array so as to prevent a failure of short-circuit. Further, an electron emission portion is limited by the second interlayer insulation layer (15) so as to cover defects unevenly distributed in the border between an electron acceleration layer (12) and a first interlayer insulation layer (14). Thus, a failure of time dependent insulation breakdown is suppressed.
Claims9
A cold cathode type flat panel display comprising:
- a first substrate including thin-film type electron sources arranged in arrays, each of said thin-film type electron sources including a lower electrode, an upper electrode and an electron acceleration layer retained between said lower electrode and said upper electrode, each of said thin-film type electron sources emitting electrons from said upper electrode in response to a voltage applied between said lower electrode and said upper electrode;
- and
- a second substrate including a fluorescent screen in which a plurality of phosphors to be excited by said electrons emitted from said first substrate are arrayed;
- said cold cathode type flat panel display being characterized in that each of said arrays of said thin-film type electron sources includes a first interlayer insulation layer and an upper electrode feeder wiring serving as a power feed line to said upper electrode;
- and
- a second interlayer insulation layer is provided between said first interlayer insulation layer and said upper electrode feeder wiring.
A cold cathode type flat panel display comprising a substrate and a fluorescent screen, said substrate including thin-film type electron sources arranged in arrays, each of said thin-film type electron sources including a lower electrode, an upper electrode and an electron acceleration layer retained between said lower electrode and said upper electrode, each of said thin-film type electron sources emitting electrons from said upper electrode in response to a voltage applied between said lower electrode and said upper electrode;
- said cold cathode type flat panel display being characterized in that:
- each of said arrays of said thin-film type electron sources includes a first interlayer insulation layer, an upper electrode feeder wiring serving as a power feed line to said upper electrode, and a second interlayer insulation layer having an opening and put between said first interlayer insulation layer and said upper electrode feeder wiring;
- and
- a region for emitting electrons is defined by a region of said opening of said second interlayer insulation layer.
Dependencies are inferred from the claim text.