Color cathode ray tube
View Patent ↗A cathode ray tube according to an embodiment of the present invention includes a panel having an effective screen; a funnel connected to the panel; and an electron gun to generate electron beams. The effective screen has a horizontal and vertical ratio of 16:9; and the panel satisfies a condition: [(Δy/d)×100)≦5.65, wherein d is length from a central point G to a diagonal vertex E of the effective screen, and Δy is length from a point H to an intersection point of the outline of the panel and the shorter axis Y, the point H being intersection of shorter axis Y and a longer side of the effective screen.
1. A cathode ray tube comprising:
a panel having an effective screen;
a funnel connected to the panel; and
an electron gun to generate electron beams; wherein
said effective screen has a horizontal and vertical ratio of 16:9; and
said panel satisfies a condition:
[(Δ y/d )×100]≦5.65
wherein d is length from a central point G to a diagonal vertex E of said effective screen, and Δy is length from a point H to an intersection point of the outline of the panel and the shorter axis Y, the point H being intersection of shorter axis Y and a longer side of said effective screen.
2. The cathode ray tube of claim 1 , wherein
said panel further satisties a condition:
[( y/Y )×100]≦11.50
wherein Y is length from the central point G of said effective screen to the point H.
3. The cathode ray tube of claim 1 , wherein
said panel further satisties a condition:
[(Δ x/d )×100]≦2.05
wherein Δx is length from a point F to an intersection point of the outline of the panel and the longer axis X, wherein the point F is intersection of longer axis X and a shorter side of said effective screen.
4. The cathode ray tube of claim 3 , wherein
said panel further satisties a condition:
[(Δ x/X )×100]≦3.5
wherein X is length from the central point G of said effective screen to the point F.
5. The cathode ray tube of claim 4 , wherein
said panel further satisties a condition:
[(Δ y/Y )×100]≦11.50.
6. The cathode ray tube of claim 1 , wherein
outer surface of said panel is substantially flat.
7. A cathode ray tube comprising:
a panel having an effective screen;
a funnel connected to the panel; and
an electron gun to generate electron beams; wherein
said effective screen has a horizontal and vertical ratio of of 4:3; and
said panel satisfies a condition:
[(Δ y/d )×100]≦5.05
wherein d is length from a central point G to a diagonal vertex E of said effective screen, and Δy is length from a point H to an intersection point of the outline of the panel and the shorter axis Y, the point H being intersection of shorter axis Y and a longer side of said effective screen.
8. The cathode ray tube of claim 7 , wherein
said panel further satisties a condition:
[(Δ y/Y )×100]≦9.0
wherein Y is length from the central point G of said effective screen to the point H.
9. The cathode ray tube of claim 7 , wherein
said panel further satisties a condition:
[(Δ x/d )×100]≦2.95
wherein Δx is length from a point F to an intersection point of the outline of the panel and the longer axis X, wherein the point F is intersection of longer axis X and a shorter side of said effective screen.
10. The cathode ray tube of claim 9 , wherein
said panel further satisties a condition:
[(Δ x/X )×100]≦3.5
wherein X is length from the central point G of said effective screen to the point F.
11. The cathode ray tube of claim 10 , wherein
said panel further satisties a condition:
[(Δ y/Y )×100]≦9.0
12. The cathode ray tube of claim 7 , wherein
outer surface of said panel is substantially flat.