Application Number: 00117941
Application Date: 2000.06.01
Publication Number: 1275787
Publication Date: 2000.12.06
Priority Information: 1999/6/1 KR 19920/1999
International: H01J29/07
Applicant(s) Name: LG Electronics Inc.
Address:
Inventor(s) Name: Lee Tae-Hoon
Patent Agency Code: 11038
Patent Agent: ma gao
Abstract A tension mask assembly of a flat CRT is provided. The tension mask assembly includes a tension mask, which is placed to be opposite to a phosphor screen formed at an inner surface of a panel a predetermined distance from the phosphor screen and which serves to discriminate colors of electron beam; an aperture grill, which serves as an electron beam transmitting hole and which is formed on an effective surface of the tension mask having a slot or a dot shape; a rail which is supported by applying a predetermined tension to both ends of a long side part or short side part of the tension mask; a support bar, which supports both ends of the rail by being arranged in a direction that crosses with the rail and which has a support spring and a tamper wire disposed thereon; and a tension controlling member, which has a different rate of thermal expansion from the support bar and which is placed in a longitudinal direction against a side wall of a support bar.