US 2003/0201706 A1Published application

Tension mask frame assembly and cathode ray tube having the same

AssigneeSamsung SDI Co., Ltd.

InventorsKuen-Dong Ha, Joon-Seong Park

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Abstract

A tension mask frame assembly for a color cathode ray tube (CRT) includes a frame and a tension mask installed to apply tension to the support members and where a plurality of electron beam passing holes are formed. The frame includes a pair of first and second support members separated a predetermined distance, first and second elastic members installed between the first and second support members and supporting the first and second support members; and first, second, third, and fourth holder units installed at the first and second support members and the first and second elastic members and respectively including first, second, third, and fourth holders and first, second, third, and fourth springs fixed to the first, second, third, and fourth holders. A thermal expansion coefficient of a material forming the third and fourth holders is no more than that of a material forming the first and second elastic members.

Claims20

Dependent claims

A tension mask frame assembly for a color cathode ray tube, the assembly comprising:

a frame, comprising:
first and second support members being separated a predetermined distance;
first and second elastic members being installed between said first and second support members, supporting said first and second support members, said elastic members including a first material having a first thermal expansion coefficient;
first and second securing units, said first securing unit being installed at said first support member and including a first holder and a first spring fixed to said first holder, said second securing unit being installed at said second support member and including a second holder and a second spring fixed to said second holder;
and
third and fourth securing units, said third securing unit being installed at said first elastic member and including a third holder and a third spring fixed to said third holder, said fourth securing unit being installed at said second elastic member and including a fourth holder and a fourth spring fixed to said fourth holder, said third and fourth holders including a second material having a second thermal expansion coefficient, with the second thermal expansion coefficient being selected from a coefficient that is less than the first thermal expansion coefficient and a coefficient that is equal to the first thermal expansion coefficient;
and
a tension mask being installed to apply tension to said support members, said tension mask forming a plurality of electron beam passing holes.

5 more elements

Dependencies are inferred from the claim text.