Color flat-panel display with electrodes including insulators
View Patent ↗Disclosed is a color flat-panel display, which includes a rear glass, a rear electrode, a filament cathode for emitting electrons, a control electrode, a signal modulation electrode, a focus electrode, a horizontal deflection electrode, a vertical deflection electrode, a front glass on which a phosphor screen is formed, and spacers for maintaining an interval between the electrodes. Each electrode member of the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode includes an insulator and a conductive layer formed on a surface of the insulator and acting as an electrode.
1. A color flat-panel display comprising:
a rear glass;
a rear electrode;
a filament cathode for emitting electrons;
a control electrode;
a signal modulation electrode;
a focus electrode;
a horizontal deflection electrode;
a vertical deflection electrode;
a front glass on which a phosphor screen is formed;
spacers for maintaining an interval between the electrodes;
wherein each electrode member of the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode includes an insulator;
a conductive layer is formed on a surface of the insulator and acts as an electrode;
the conductive layer has a main component of any one of the materials selected from the group consisting of Au, Al, Pt, Ag, Cu and Ni which are metals having a high conductivity; and
the insulator has a main component of at least one of the elements selected from the group consisting of PbO, B 2 O 3 , SiO 2 , and Al 2 O 3 .
2. A color flat-panel display comprising:
a rear glass;
a rear electrode;
a filament cathode for emitting electrons;
a control electrode;
a signal modulation electrode;
a focus electrode;
a horizontal deflection electrode;
a vertical deflection electrode;
a front glass on which a phosphor screen is formed;
spacers for maintaining an interval between the electrodes;
wherein each electrode member of the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode comprises an insulator having a thickness of 50-150 μm; and
a conductive layer having a thickness of 4-50 μm is formed on one side of each of the insulators.
3. The color flat-panel display of claim 2 , wherein the conductive layer is formed around an electron beam passing hole formed on the insulator.
4. The color flat-panel display of claim 2 , wherein the conductive layer is formed on an inner wall of an electron beam passing hole formed on the insulator.
5. A color flat-panel display comprising:
a rear glass;
a rear electrode;
a filament cathode for emitting electrons;
a control electrode;
a signal modulation electrode;
a focus electrode;
a horizontal deflection electrode;
a vertical deflection electrode;
a front glass on which a phosphor screen is formed;
spacers for maintaining an interval between the electrodes;
wherein each electrode member of the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode includes an insulator; and
a conductive layer is formed on a surface of the insulator and acts as an electrode.
6. The color flat-panel display of claim 5 , wherein the insulator is made with a ceramic-based insulating material.
7. The color flat-panel display of claim 5 , wherein main component of the insulator is at least one of the elements selected from the group consisting of PbO, B 2 O 3 , SiO 2 , and Al 2 O 3 .
8. The color flat-panel display of claim 5 , wherein the main component of the conductive layer is any one of the materials selected from the group consisting of Au, Al, Pt, Ag, Cu and Ni which are metals having a high conductivity.
9. The color flat-panel display of claim 5 , wherein the insulator is 50-150 μm thick.
10. The color flat-panel display of claim 5 , wherein the conductive layer formed on one side of the insulator is 4-50 μm thick.
11. The color flat-panel display of claim 5 , wherein each electrode is 58-250 μm thick.
12. The color flat-panel display of claim 5 , wherein the overall thickness of the assembly formed by combining the respective electrodes is less than 5000 μm.
13. The color flat-panel display of claim 5 , wherein the control electrode, the signal modulation electrode, the focus electrode, the horizontal deflection electrode and the vertical deflection electrode are manufactured using a printing method.
14. The color flat-panel display of claim 5 , wherein the spacers for maintaining the interval between the electrodes are formed with a ceramic material.
15. The color flat-panel display of claim 5 , wherein the conductive layer is formed on both sides of the insulator.
16. The color flat-panel display of claim 5 , wherein the conductive layer is formed on the entire surface of the insulator.
17. The color flat-panel display of claim 5 , wherein the conductive layer is formed on the entire surface of the control electrode and the focus electrode.
18. The color flat-panel display of claim 5 , wherein the conductive layer is formed only around an electron beam passing hole formed on the insulator.
19. The color flat-panel display of claim 5 , wherein the conductive layer is formed on an inner wall of an electron beam passing hole formed on the insulator.
20. The color flat-panel display of claim 5 , wherein the conductive layer formed on the horizontal deflection electrode and the vertical deflection electrode has two conductive plates that mesh with each other and placed on the insulator such that the conductive plates are meshed together at a predetermined distance from each other on the same plane.