PROGRESS: Completed Project	PROJECT REF: PA043
PROJECT TITLE: Field Emission Display Having Elongate Emitter Structures
PROJECT DESCRIPTION: Field emission displays (FEDs) have been known for a number of years as an alternative to active matrix liquid crystal displays (AMLCDs). Indeed, FEDs are known to have a number of advantages. They can be made thinner and lighter while having better operating characteristics compared to an AMLCD. In particular, an FED may have higher contrast ratio, wider viewing angle and greater brightness. However, they are expensive to manufacture. The invention provides novel double-gate race-track-shaped field emitter structures for use with FEDs. An emitter layer is sandwiched between two gate electrodes. Thus at the end of the emitter layer where electrons are emitted there is gate electrode on either side and this symmetry reduces the leakage gate current and allows the turn-on voltage to be reduced. This structure is easier to fabricate and thereby reduce the manufacture cost. The race-track-shaped edge emission and also can provide good uniformity and large field emission current density. Potential Applications: - Flat panel displays Advantages over Present Technologies: 1. High current density 2. Low cost due to less expensive fabrication technology 3. Solves the poor uniformity problem
FOCUS AREA(S): Display Technologies
KEYWORDS: display, flat panel display, field emission display, emitter structure
MODE OF COLLABORATION: Technology Licensing, Further R&D Collaboration
STATUS PATENT: Granted	PATENT NO: US5982081
ORGANIZATION: Hong Kong University of Science and Technology R and D Corporation Limited
CONTACT PERSON: Shirley Woo	EMAIL: cawoosw@ust.hk
TEL: (852)-23587918	FAX: (852)-23582751
WEBSITE: http://rdc.ust.hk/	DATE: 29/12/2004