Tension mask frame assembly for color CRT
AssigneeSamsung SDI Co., Ltd.
InventorsJoon-soo Bae, Kuen-dong Ha, Gui-bae Kim, Woo-il Park
Life of this patent
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Abstract
A tension mask frame assembly for a color CRT includes a tension mask having an effective area having a plurality of electron beam passing holes and an ineffective area disposed at an edge portion of the effective area, a frame including support members which support opposite side portions of the tension mask so that tension is applied to the tension mask and rigid members which support end portions of the support members to maintain a gap between support members, and at least one weight member installed by a fixing unit to be separated at a predetermined interval in the ineffective area of the tension mask in a lengthwise direction of the tension mask fixed at the frame.
Claims22
A tension mask frame assembly for a color CRT comprising:
- a tension mask having an effective area in which a plurality of electron beam passing holes through which electron beams pass are formed, and an ineffective area disposed at an edge portion of the effective area;
- a frame including support members which support opposite side portions of the tension mask so that tension is applied to the tension mask, and rigid members which support end portions of the support members to maintain a gap between the support members;
- and
- a weight member attached to the tension mask using a fixing unit and which is separated at a predetermined interval above the ineffective area of the tension mask, the weight member being attached in a lengthwise direction of the tension mask.
A tension mask assembly comprising:
- a tension mask having electron beam passing holes and opposite sides extending in a first direction;
- a frame which supports the tension mask at the opposite sides and which applies tension to the tension mask in a second direction other than the first direction;
- and
- a weight unit disposed at a periphery of the tension mask adjacent the opposite sides so as to allow electron beams to pass through the electron beam passing holes.
A color cathode ray tube comprising:
- a funnel having a neck portion;
- an electron gun attached to the neck portion so as to emit electron beams through the funnel;
- a panel sealing the funnel to create a vacuum and having a fluorescent film disposed in the vacuum so as to receive the emitted electron beams;
- and
- a tension mask assembly through which the electron beams pass between the electron gun and the fluorescent film, the assembly comprising:
- a tension mask having electron beam passing holes and opposite sides extending in a first direction;
- a frame which supports the tension mask at the opposite sides and which applies tension to the tension mask in a second direction other than the first direction;
- and
- a weight unit disposed at a periphery of the tension mask adjacent the opposite sides so as to allow the electron beams to pass through the electron beam passing holes.
Dependencies are inferred from the claim text.