Abstract:
An optical correction layer (800, 900, 50) for a light emitting apparatus having gaps (604, 806) in brightness at the light-emitting surface (204, 601). The optical correction layer (800, 900, 50) includes a plurality of optical correction regions (802, 902, 62) centered over the gaps (604, 806), and a plurality of optically transparent regions (804, 904, 57) which overlay the remainder of the light-emitting surface (204, 601). The optical correction regions (802, 902) include appropriately formed grooves (820, 822, 920) which collect and redirect light (816) adjacent the gap (604, 806). The light (816) is redirected to cover and effectively conceal the gap (604, 806). The optically transparent regions (804, 904, 57) permit light to travel through, without redirection.
Abstract:
This invention relates to a method for the fabrication of electrical and electronic devices using a photoresist deposited in pre-existing through holes in a device structure and a thick film paste, and to the devices made by such method. The method allows thick film paste deposits in the corners of the holes. This invention also relates to devices made with thick film pastes that are patterned using a diffusion layer made from residual photoresist deposits in a hole.
Abstract:
An electron-emitting device having a low operating voltage, a large operating current, and an excellent operation stability. A cold-cathode member is made of a mixture of first particles for emitting electrons into a space and second particles provided near the first particles and adapted to regulate the postures of the first particles. It is preferable that the first particles have an electron emission efficiency higher than that of the second particles, and the second particles are conductive. An electron source and an image display both comprising such a device, and a method for producing such a device through a less number of process steps at low cost.
Abstract:
A support structure (3) is provided that enables use of high voltage phosphors in field-emission flat panel displays, to maintain vacuum gap (4) between the cathode (2) and anode (1), and to prevent distortion of the transparent view screen and backing plate of the display. A number of techniques contribute to the solution of the problem of secondary electron emission. In accordance with one technique, the geometry of the triple junction of the support structure, the cathode and the vacuum gap is altered. In accordance with another technique, the support structure is fluted so as to reduce the average coefficient of secondary emission. In another technique, a high resistivity conductive layer is formed at the triple junction in order to reduce electric field potential at the triple junction. In accordance with another technique, the support structure is made of a non-porous material and may be coated with a coating having low secondary emission characteristics.
Abstract:
This invention relates to a method or forming and using a very dense layer of particles that have been encapsulated in a thermoplastic polymer binder and electrically deposited on a substrate. Space-charge-limited deposition is made possible by the addition of novel charge directors that are essentially nonconductive in aliphatic hydrocarbon liquid in the absence of binder. The particle layer can be designed to possess numerous characteristics by varying the particles to be encapsulated. Many structures can be fabricated from the different particle layers including thermal detectors, electrical interconnects, p-n junctions, micro-metallic structures, field-emitting devices, and optical coatings. A technique for the removal of semiconductor dislocations is also discussed.
Abstract:
A field emitting device having a plurality of preformed emitter objects (201, 301). The emitter objects include sharp geometric discontinuities, and a significant number of these geometric discontinuities are oriented in a way that supports desired field emission activity. Field emission devices built with such emitters can be utilized to provide a flat display screen (Fig. 4).