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:
Mar. 24, 2009
Filed:
Nov. 23, 2004
Soo-joung Lee, Suwon-si, KR;
Seung-joon Yoo, Suwon-si, KR;
Soo-Joung Lee, Suwon-si, KR;
Seung-Joon Yoo, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
An electron emission device includes a first substrate with an electron emission region, and a second substrate with a light emitting region. The light emitting region emits light in response to electrons emitted from the electron emission region to produce images. A phosphor layer is formed with a predetermined pattern. A black layer is formed with a predetermined pattern at a non-light-emitting region within the phosphor layer pattern on the second substrate. The black layer includes a first region of chromium oxide or an oxide of chromium and one or more metals selected from the group consisting of indium, tin, indium-tin, copper, antimony, titanium, manganese, cobalt, nickel, zinc, lead, chromium, and combinations thereof. The first region is formed on an anode. A second region of metallic chromium is formed on the first region, and a third region of chromium oxide is formed on the second region.