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ENCAP Technologies (Georgia) Revolutionizes Micro- and Macro- Encapsulation of Phosphors

U.S. Patent, Trademark Issues Patents
and Chinese Patent

ENCAP Technologies filed several patents with the United States Patent and Trademark Commissioners in Arlington, VA, requesting that two patents be issued for ENCAP's perfection of Microencapsulation of Electroluminescent Phosphors and for its Impermeable Coating known as "CoForm." On June 21, 2002 and May 13, 2003, respectively, the Patent and Trademark Office did in fact issue these patents to ENCAP.

We are intensely aware that many companies have investigated EL and OLED applications and have experimented with encapsulation of ELs and OLEDs using various types of wall materials. We are also aware of these companies' limited success in perfecting an impermeable encapsulation of ELs and OLEDs. In order for electroluminescent phosphors to achieve or exceed the level of performance as LCD, LED, PDP, CRT, and other applications have achieved, they need to be environmentally stable under the various conditions required of these displays.

Until now, oxygen and moisture have plagued the flat panel display industry

EL, LED and OLED flat panel displays ("FPDs") offer significantly similar benefits; nevertheless, difficulty in maintaining acceptable half-lives continues to plague the FPD industry. One complication that significantly reduces FPDs' useful life span is their sensitivity to oxygen and moisture.

Currently, there are many obstacles to the commercial production of FPDs using ELs, LEDs, and OLEDs. As you are aware, electrodes are essential components of ELs, LEDs, and OLEDs as they provide electrons (or positive holes) that eventually lead to light emission. Because it is more difficult to get the organic compounds used in OLEDs to conduct electrons than it is to make inorganic semiconductors (i.e., ELs) conduct electrons, the cathode is made of low work functions metals (highly electropositive -- thus giving up electrons easily), such as calcium, aluminum, or magnesium: silver (10:1). And while these materials have worked well, they are difficult to produce commercially because they are sensitive to oxygen and moisture.

The polymers and organic compounds used in the OLED layers are also sensitive to oxygen and moisture. The search for more stable compounds has been complicated by the reality that different colors are made with different compounds, creating another complication -- that of differing half-lives. The half-life of an OLED is the length of time it takes an OLED to become 50% less emissive. Full-color OLEDs have, at a minimum, three different colors of OLED materials -- red, green, and blue. These colors need to have compatibly long half-lives. For instance, what if the blue color lasted 10,000 hours but the green color lasted only 5,000 hours? After 5,000 hours, the screen might appear blurred without the green color, causing the grass of your favorite movie to appear as if it were under water.

ENCAP Has Solved These Problems

Consider EL particles that are exposed to extreme conditions, such as 95% RH, 120 degrees F, for an extended period of time without emission degradation while under full power load, or consider ELs applied directly to microchips and rolled up or folded. When returned to their extended forms, the results are standard thin flat-panel displays or TVs. Consider this same application with its resolution applied over a 20 foot wide screen -- many times larger than a typical TV display.

This application is possible today using our Encapsulated Electroluminescent (EEL) phosphors. Our EEL phosphors have been independently tested at the government extreme test facility of Wright-Patterson Air Force Base, in Dayton, Ohio. Their test results are well documented. Their data shows that these "raw" microencapsulated phosphors withstood over 1000 hours of continuous illumination with no degradation in light output. Our own sample has been illuminated for over 96,000 hours without reaching its half-life.

Owning This Revolutionary Technology

ENCAP is in search of a company suitable to own this core micro- and macro- encapsulation technology, a company that not only can comprehend the breadth of this technology, but also is capable of managing this technology's impact upon the global technology market. This technology will permit that company to dominate the global flat panel display industry and offer the technology world the highest resolution displays without panel size limitations.

This technology will deliver higher value added products and substantially higher margins for such a company. With this technology, screen quality will truly be supreme without the limitation of viewing angles.

Because of the dated technology used in today's display industry, CRTs and FPDs are truly dinosaurs. ENCAP's core-technology, in the hands of a suitable company, can transform the world's display market and enable its owner to reap unfathomable profits -- in a $84 billion industry enjoying 20-30% annual growth rates.


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