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US 5,084,806 AGranted
Light emitting display device and stem for light emitting display device
OwnerKiyoshi Nagaiinventor
Life of this patent
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Abstract
Disclosed is a light emitting display device comprising: a stem member comprising a lidless container having a plural number of chambers divided by partially chipped walls, filaments and their support posts arranged in each chamber; and a lid panel having transparent windows and light-shielding face. The lid panel is airtightly fixed on the upper side of the container so that the light-shielding face covers the upper portions of the chipped parts of the walls. The inside of the device is made vacuum.
Claims2
A light emitting display device which comprises:
- a stem member comprising a container having an open face;
- wall members within said container dividing said container into a plurality of separate chambers;
- a filament and support post therefore in each chamber;
- said wall members having opening therein to place the chambers in atmospheric communication with one another;
- a lid panel having transparent windows and a light shielding face air tightly fixed on the open face of the container, said light shielding face cooperating with said openings in said walls to minimize the entrance of light from 1 chamber to another chamber.
2 more elements
Dependencies are inferred from the claim text.