Mask spring structure for cathode ray tube
AssigneeLG.Philips Displays Korea Co., Ltd.
InventorSu Dong Kang
Life of this patent
Estimating the term…
Abstract
A cathode ray tube comprises a panel having a fluorescent formed on an inner surface thereof; a funnel fastened to the panel; an electron gun housed in the funnel, emitting electron beams; a shadow mask for selecting colors of the electron beams; a mask frame for supporting the shadow mask; and a mask spring for coupling the mask frame to the panel, wherein the mask spring is comprised of an fastening portion welded to the mask frame, a attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, and elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion.
Claims20
A cathode ray tube comprising:
- a panel having a fluorescent formed on an inner surface thereof
- a funnel fastened to the panel;
- an electron gun housed in the funnel, emitting electron beams;
- a shadow mask for selecting colors of the electron beams;
- a mask frame for supporting the shadow mask;
- and
- a mask spring for coupling the mask frame to the panel, wherein the mask spring includes a fastening portion welded to the mask frame, an attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, wherein elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion, and wherein the embossments are asymmetric with respect to the bending portion.
A cathode ray tube comprising:
- a panel having a fluorescent formed on an inner surface thereof;
- a funnel fastened to the panel;
- an electron gun housed in the funnel, emitting electron beams;
- a shadow mask for selecting colors of the electron beams;
- a mask frame for supporting the shadow mask;
- and
- a mask spring for coupling the mask frame to the panel, wherein the mask spring includes a fastening portion welded to the mask frame, an attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, wherein elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion, and wherein a distance from the bending portion to an end of the embossment in a direction of the connecting portion, b, and a distance from the bending portion to an end of the embossment in a direction of the fastening portion, a, satisfy a condition of a<b.
A cathode ray tube comprising:
- a panel having a fluorescent formed on an inner surface thereof;
- a funnel fastened to the panel;
- an electron gun housed in the funnel, emitting electron beams;
- a shadow mask for selecting colors of the electron beams;
- a mask frame for supporting the shadow mask;
- and
- a mask spring for coupling the mask frame to the panel, wherein the mask spring includes a fastening portion welded to the mask frame, an attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, wherein elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion, and wherein a depth of each of the embossments, d, where the embossment is caved in, and a thickness of the mask spring, t, satisfy a condition of 0.4≦d/t≦0.6.
A cathode ray tube comprising:
- a panel having a fluorescent formed on an inner surface thereof;
- a funnel fastened to the panel;
- an electron gun housed in the funnel, emitting electron beams;
- a shadow mask for selecting colors of the electron beams;
- a mask frame for supporting the shadow mask;
- and
- a mask spring for coupling the mask frame to the panel, wherein the mask spring includes a fastening portion welded to the mask frame, an attaching portion attached to the panel, and a connecting portion for connecting the fastening portion with the attaching portion, wherein elongated embossments are formed on a bending portion formed between the fastening portion and the connecting portion, and wherein a depth of the embossment, s, and a total length of the embossment, a+b, satisfy a condition of 0.3≦s/(a+b)≦0.5.
Dependencies are inferred from the claim text.