Spring for cathode ray tube
AssigneeLG Electronics Inc.
InventorJae-Seung Baek
Life of this patent
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Abstract
The present invention relates to a color cathode ray tube having a spring structure capable of compensating for the displacement of a shadow mask frame, thereby suppressing the degradation of the color purity according to the mislanding of electron beams. The spring according to the present invention includes a stud pin coupling part, a frame welding part and an inclined part as an elastic support body having a predetermined inclination angle between the stud pin coupling part and the frame welding part. Further, the spring is bonded to a plurality of metal members that have different thermal expansion coefficients, while being separated from each other in a length direction of the spring relative to a tube shaft.
Claims9
A color cathode ray tube having a panel forming a luminous fluorescent material on the inside surface thereof, a shadow mask separated by a predetermined interval from said luminous fluorescent material of said panel and a spring having one end coupled to a stud pin on the inside of a skirt of said panel and the other end coupled to a support frame for supporting said shadow mask, said color cathode ray tube comprising;
- said spring being comprised of a stud pin coupling part where the one end of said spring is coupled to said stud pin, a frame welding part where the other end of said spring is coupled to the said support frame and an inclined part coupled at a predetermined inclination angle with said stud pin coupling part and said frame welding part and being made in manner to bond a plurality of metal members that are separated in a length direction thereof relative to a tube shaft and have different thermal expansion coefficients.
Dependencies are inferred from the claim text.