Field emission display backplates
AssigneeMicron Technology, Inc.
InventorJi Ung Lee
Life of this patent
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Abstract
A field emission display backplate including a substrate having a surface; an emitter which extends from the surface of the substrate; and an anode having an upper surface, a lower surface, and an opening surface which defines an opening aligned with the emitter, the opening surface includes a first portion which curves outward relative to the anode and a second portion which curves inward relative to the anode.
Claims30
A field emission display backplate comprising:
- a substrate having a surface;
- an emitter which extends from the surface of the substrate;
- and
- an anode having an upper surface, a lower surface, and an opening surface most proximate to the emitter and which defines an opening aligned with the emitter, the opening surface includes a first portion which curves outward relative to the anode and a second portion which curves inward relative to the anode.
A field emission display backplate comprising:
- a substrate having a surface;
- an emitter having a length which extends in a substantially orthogonal direction from the surface of the substrate and the emitter includes a first portion comprising a first doping type semiconductive material and approximately 15 to 95 percent of the length of the emitter and a second portion comprising a second doping type semiconductive material and the remaining length of the emitter, the first and second portions comprising different semiconductive material than a material of the substrate;
- and
- an anode spaced from the emitter.
A field emission display backplate comprising:
- a substrate having a surface;
- an emitter which extends from the surface of the substrate and includes a first portion having a surface which curves outward relative to the emitter and a second portion having a surface which curves inward relative to the emitter;
- and
- an anode having a complementary surface parallel to the surface of the first portion and the surface of the second portion of the emitter.
A field emission display backplate comprising:
- a substrate having a surface;
- an emitter which extends from the surface of the substrate and includes a first portion having a surface which curves outward relative to the emitter and a second portion having a surface which curves inward relative to the emitter;
- and
- an anode having a surface spaced a substantially constant distance from the second surface of the emitter in an overlapping region of the emitter and the anode.
A field emission display backplate comprising:
- a substrate having a surface;
- an emitter having a length which extends in a substantially orthogonal direction from the surface of the substrate, and the emitter includes:
- a first portion comprising p-type semiconductive material and having a surface which curves outward relative to the emitter and a length comprising approximately 15 to 95 percent of the length of the emitter;
- and
- a second portion comprising an n-type semiconductive material and having a surface which curves inward relative to the emitter;
- and
- an anode spaced from the emitter and including an opening surface which defines an opening aligned with the emitter, and the opening surface includes:
- a first portion having a surface which curves outward relative to the anode and is parallel to the surface of the second portion of the emitter;
- and
- a second portion having a surface which curves inward relative to the anode and is parallel to the surface of the first portion of the emitter.
Dependencies are inferred from the claim text.