An electron emission light-emitting device includes a cathode structure, an anode structure, a fluorescent layer, and a low-pressure gas layer. The fluorescent layer is located between the cathode structure and the anode structure. The low-pressure gas layer is filled between the cathode structure and...http://www.google.com/patents/US8026657?utm_source=gb-gplus-sharePatent US8026657 - Electron emission light-emitting device and light emitting method thereof
