The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Feb. 25, 2005
Eung-joon Chi, Suwon-si, KR;
Sang-ho Jeon, Suwon-si, KR;
Byong-gon Lee, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
The present invention relates to an electron emission device, and more particularly, to an electron emission device comprising a grid electrode having a thermal expansion coefficient ranging from about 80 to about 120% of the thermal expansion coefficient of the first or second substrate of the electron emission device. The grid electrode is fixed in position by minimizing misalignment caused by a difference in thermal expansion coefficients between the grid electrode and the first and second substrates of the electron emission device. The grid electrode also minimizes generation of arc discharge. However, even when arc discharge is generated, the grid electrode prevents damage to the cathode electrodes and gate electrodes from that arc discharge. According to the present invention, an electron emission device with increased brightness and resolution is easily realized by applying increased voltage to the anode electrode.