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:
Jun. 04, 2013
Filed:
Dec. 26, 2007
Hyuck Jung Choi, Ansan-si, KR;
Sang Min Lee, Ansan-si, KR;
Kyung Nam Kim, Ansan-si, KR;
Yun Bok Lee, Ansan-si, KR;
Hyuck Jung Choi, Ansan-si, KR;
Sang Min Lee, Ansan-si, KR;
Kyung Nam Kim, Ansan-si, KR;
Yun Bok Lee, Ansan-si, KR;
Seoul Semiconductor Co., Ltd., Seoul, KR;
Abstract
A back lighting unit is disclosed in which lower and upper surfaces of a light transmitting plate function as incident and exit surfaces of light, respectively, and a phosphor film structure for wavelength-converting the light is provided at a position which the light is incident on or exits from. The disclosed back lighting unit includes a light emitting means including a light emitting diode disposed to emit light upwards; a light transmitting plate disposed over the light emitting diode, the light transmitting plate having a lower surface allowing light to be incident thereon and an upper surface allowing light to exit therefrom; and a phosphor film structure including a particulate phosphor and formed on at least one of the lower and upper surfaces of the light transmitting plate.