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:
May. 19, 2026
Filed:
Feb. 07, 2019
Lg Electronics Inc., Seoul, KR;
Pusan National University Industry-university Cooperation Foundation, Busan, KR;
Wongyu Choi, Seoul, KR;
Young Seok Kim, Seoul, KR;
Bong-Ki Ryu, Busan, KR;
Jae-Young Shin, Busan, KR;
Dae-Geol Jeong, Busan, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
The present disclosure relates to a low temperature-calcined lead-free glass frit and paste, and a vacuum glass assembly using the same. The glass frit has a novel component system, in which phosphorus pentoxide (PO), vanadium pentoxide (VO), tellurium dioxide (TeO), copper oxide (CuO), barium oxide (BaO), zinc oxide (ZnO), bismuth oxide (BiO), and silver oxide (AgO) are included at a unique composition ratio according to the disclosure, and replaces a lead-based glass composition of the related art, is calcined at low temperature, includes no inorganic filter or include a minimum amount of an inorganic filler, has a coefficient of thermal expansion matching a coefficient of thermal expansion of a glass base material to prevent a separation or damage, and ensures excellent durability.