Vacuum seal for FEA's
AssigneeIndustrial Technology Research Institute
InventorsWen-Chun Wang, Chun-hui Tsai, Chih-Hao Tien
Life of this patent
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Abstract
A vacuum seal suitable for use with field emission arrays is described. This seal has high reliability because the expansion coefficients of the metal and the glass are closely matched. Materials traditionally used for cathode and gate lines continue to be employed. To achieve this, a gap is introduced into each conductive line near the edges of the display. This gap is bridged by a material having an expansion coefficient that more closely matches that of the glass used for the seal and is the only material that contacts the seal. The bridge may be in the form of a deposited layer or it may be a discrete wire. A description of how the structure is manufactured is also provided.
Claims11
An electrical connector comprising:
- a vacuum enclosure having an external air side and an internal vacuum side;
- a field emission array, contained within the vacuum enclosure, having a front plate and a rear plate, separated by spacers, the front plate, the rear plate, and the spacers each having a front surface and a rear surface;
- a first layer of fused glass frit between said front plate's rear surface and the spacers' front surfaces;
- a second layer of fused glass frit between said rear plate's front surface and the spacers' rear surfaces;
- an electrical lead having beginning and end sections connected to one another through a center section, said center section is of different conductive material than said beginning and end sections, said beginning section being entirely within the vacuum side and said end section being entirely within the air side;
- and
- said center section being partly within the vacuum side, partly inside the layer of fused glass frit and partly within the air side.
Dependencies are inferred from the claim text.