CRT having a shadow mask vibration damper
AssigneeThomson Licensing
InventorsJoseph Arthur Reed, Gary Lee Diven
Life of this patent
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Abstract
The invention provides an improved vibration damper for use in a tension mask assembly of a CRT. The improved vibration damper is provided along edges of a tension mask which is attached to a support frame. The vibration damper consists of an elongated strip member having first and second ends mounted to a surface of the tension mask along its borders. A substantial portion of the elongated strip member located between the first and second ends lies in frictional contact with the tension mask to receive vibrations induced in the mask.
Claims17
A CRT having a tension mask attached to a support frame, the support frame having longs sides (22, 24) parallel to a major axis and shorts sides parallel to a minor axis (26, 28), the tension mask including a vibration damper comprising an elongated strip member having first and second ends mounted at respective attachment locations along a border (36) of the tension mask and having a major portion of its surface in frictional contact with the border between the ends to receive vibration from the tension mask, the border being near the short sides and parallel therewith.
A CRT (1) having a tension mask (30) attached to a support frame (10), the support frame having longs sides (22, 24) parallel to a major axis and shorts sides parallel to a minor axis (26, 28), the tension mask including a vibration damper (46) comprising:
- an elongated strip member having first and second ends mounted to a surface along a border (36) of the tension mask and a substantial portion acting upon the surface of the border to receive vibration from the border;
- the elongated strip member having a raised portion (43) disposed between the first and second ends.
Dependencies are inferred from the claim text.