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. 10, 1998
Filed:
Sep. 04, 1996
Bong-mo Jeong, Seoul, KR;
Min-ho Kim, Suwon, KR;
Jae-ho Shim, Seoul, KR;
Wan-woo Park, Yongin, KR;
Deuk-yong Yang, Suwon, KR;
Samsung Display Devices Co., Ltd., Kyungki-do, KR;
Abstract
A photo-conductive composition and CRT bulb having a photoconductive layer formed of the same are provided. The photo-conductive composition comprises 5-15 wt % of a charge transmitting substance, represented by the structural formula (1) ##STR1## where R is selected from the group consisting of hydrogen, C.sub.1 -C.sub.10 linear alkyl or branched alkyl, halogen, alkylamino (NR.sub.1), alkylester (COOR.sub.1) and .alpha.-cyanomethyl alkylketone (CH(CN)COR.sub.2), R.sub.1 and R.sub.2 being selected from the group consisting of C.sub.1 -C.sub.10 alkyl, aryl, C.sub.1 -C.sub.10 alkoxy and aryloxy, and n is an integer between 500 and 1000; 1-15 wt % of a charge generating substance which absorbs light in the wavelength range of an ultraviolet region; 70-93.95 wt % of a binder; and 0.05-1 wt % of a surfactant. The photo-conductive composition exhibits excellent sintering characteristic and can form a photoconductive layer having excellent sensitivity, durability and luminance.