Claims
- 1. A field emission display, comprising:a front substrate and a rear substrate provided opposite one another with a predetermined gap therebetween; gate electrodes formed in a line pattern in a first direction and cathode electrodes formed in a line pattern in a second direction on a surface of the rear substrate opposing the front substrate, with a pixel region being defined at an intersection of one of the gate electrodes and one of the cathode electrodes: an insulating layer formed between the gate electrodes and the cathode electrodes to insulate the gate electrodes from the cathode electrodes; field emitters formed on the cathode electrodes at areas corresponding to each pixel region; an anode electrode formed over an entire surface of the front surface; and phosphor layers formed on the anode electrode to be exposed to the predetermined gap, each of the phosphor layers being disposed at one of the pixel regions; wherein, for each one of the cathode electrodes, ones of the field emitters are disposed along one side of the one cathode electrode in the second direction and are separated by corresponding intersections of the one side and corresponding ones of the gate electrodes at which no field emitter is disposed, and others of the field emitters are disposed along another side of the one cathode electrode in the second direction and are separated by corresponding intersections of the another side and corresponding other ones of the gate electrodes at which no field emitter is disposed such that the ones of the field emitters form a zigzag pattern with the others of the field emitters on the one cathode electrode.
- 2. The field emission display of claim 1, wherein each of the field emitters comprises a carbon-based material selected as one or more from the group consisting of carbon nanotubes, graphite, diamond-like carbon, and C60 (Fullerene).
- 3. The field emission display of claim 1, wherein:the field emitters include first emitters on a first cathode electrode and second emitters disposed on a second cathode electrode, and adjacent pairs of the first and second emitters are disposed on the first and second cathode electrodes so as face each other on adjacent gate electrodes to form in the zigzag pattern.
- 4. The field emission display of claim 3, wherein:each of the cathode electrodes comprise first and second sub-electrodes arranged in a line pattern at a predetermined distance apart, and a connecting electrode that electrically connects the first and second sub-electrodes.
- 5. The field emission display of claim 4, wherein for each cathode electrode, the first emitters are arranged on a first long edge of the first sub-electrode so as to be opposite a second long edge of the second sub-electrode, and the second emitters are arranged on the second long edge of the second sub-electrode so as to be opposite the first long edge of the first sub-electrode.
- 6. The field emission display of claim 5, wherein the insulating layer further comprises holes passing through the insulating layer at corresponding pixel regions between the first and second sub-electrodes, and the field emission display further comprises counter electrodes, each counter electrode being within the one of the holes to be electrically connected to one of the gate electrodes.
- 7. The field emission display of claim 4, wherein:the zigzag pattern comprises first and second zigzag patterns, first ones of the cathode electrodes are adjacent second ones of the cathode electrodes, the first and second emitters are arranged respectively on ones of the first and second sub-electrodes of the first cathode electrodes to form the first zigzag patterns, and the first and second emitters are arranged respectively on others of the first and second sub-electrodes of the second cathode electrodes to form the second zigzag patterns which are different from the first zigzag patterns.
- 8. The field emission display of claim 7, wherein the insulating layer further comprises holes passing through the insulating layer in pixel regions between the first and second sub-electrodes, and the field emission display further comprises counter electrodes, each counter electrode being within one of the holes to be electrically connected to one of the gate electrodes.
- 9. The field emission display of claim 1, wherein the field emitters include first emitters and second emitters, which are alternately arranged in the first direction of gate electrodes, the first emitters having a predetermined distance in a direction perpendicular to the first direction from the adjacent second emitters to thereby result in the zigzag pattern with the first and second emitters.
- 10. The field emission display of claim 9, wherein the insulating layers comprise holes in the cathode electrodes to expose the insulating layer at areas corresponding to each pixel region, and the field emitters are formed on the cathode electrodes at an edge of each of the holes.
- 11. The field emission display of claim 10, wherein each of the holes includes first and second sides parallel to the first direction, and the first emitters are formed on the cathode electrodes along the first sides of the holes and the second emitters are formed on the cathode electrodes along the second sides of the holes.
- 12. The field emission display of claim 11, further comprising passageways formed within the holes and passing through the insulating layer, and the field emission display further comprises counter electrodes formed within the holes and within the passageways to be electrically connected to the gate electrodes.
- 13. The field emission display of claim 10, wherein:the holes include first and second sides that are parallel to the first direction, along an area corresponding to any one of the gate electrodes, the first and second emitters are formed on the cathode electrodes respectively at edges of one of the first and second sides of the holes, and along an adjacent one of the gate electrodes, the first and second emitters are formed on the cathode electrodes respectively at edges of the other of the first and second sides of the holes.
- 14. The field emission display of claim 13, further comprising passageways, which are formed within the holes and passing through the insulating layer, and counter electrodes formed within the holes and within the passageways to be electrically connected to the gate electrodes.
- 15. The field emission display of claim 1, wherein the phosphor layers include R (red), G (green), and B (blue) phosphor layers corresponding to each of the field emitters, wherein each of the R, G, and B phosphor layers is substantially triangular in shape in which each triangle shape includes an apex corresponding to positions of the field emitters and sides extending from the apex.
- 16. The field emission display of claim 15, wherein, along one of the first and second directions, apexes of the phosphor layers point in one direction to form a designated line passing through these apexes, and along a line adjacent and parallel to the designated line, apexes of the phosphor layers point in the opposite direction, this pattern repeating for all the phosphor layers.
- 17. The field emission display of claim 15, wherein, along each of the first and second directions, apexes of the phosphor layers point alternately in opposite directions.
- 18. The field emission display of claim 15, further comprising spacers provided between the front and rear substrates, the spacers including first and second supports surrounding without covering two sides of each of the phosphor layers.
- 19. The field emission display of claim 18, wherein the spacers include also a third side connected to the first and second sides and formed along the first direction to be parallel to a side of an adjacent phosphor layer.
- 20. The field emission display of claim 15, further comprising spacers provided between the front and rear substrates, the spacers including three supports that are rotationally symmetrical about a center point where corners of six phosphor layers merge.
- 21. The field emission display of claim 20, wherein the spacers include six supports that are rotationally symmetrical about the center point.
- 22. A field emission display, comprising:a front substrate and a rear substrate disposed opposite one another with a predetermined gap therebetween; gate electrodes formed in a line pattern in a first direction on a surface of the rear substrate opposite the front substrate; an insulating layer formed over an entire surface of the rear substrate and covering the gate electrodes; cathode electrodes, each of the cathode electrodes including first and second sub-electrodes arranged in a line pattern in a second direction perpendicular to the first direction, the first and second sub-electrodes being separated at a predetermined distance and being electrically connected by a connecting electrode, each intersection of one of the cathode electrodes and one of the gate electrodes defining a pixel region; field emitters formed on the cathode electrodes at areas corresponding to each pixel region, the field emitters including first emitters and second emitters, the first emitters and the second emitters being alternately arranged in the second direction; an anode electrode formed over an entire surface of the front surface opposite the rear substrate; and phosphor layers formed on the anode electrode, wherein, for each cathode electrode, the first emitters are arranged on a first long edge of the first sub-electrode so as to be opposite the second sub-electrode, and the second emitters are arranged on a second long edge of the second sub-electrode so as to be opposite the first sub-electrode.
- 23. The field emission display of claim 22, wherein the insulating layer further comprises holes passing through the insulating layer in pixel regions between the first and second sub-electrodes, and the field emission display further comprises counter electrodes, each counter electrode being formed within one of the holes to be electrically connected to one of the gate electrodes.
- 24. The field emission display of claim 22, wherein:first ones of the cathode electrodes are adjacent to second ones of the second cathode electrodes, the first and second emitters are arranged respectively on ones of the first and second sub-electrodes of the first cathode electrodes, and the first and second emitters are arranged respectively on other ones of the first and second sub-electrodes of the second cathode electrodes.
- 25. The field emission display of claim 24, wherein the insulating layer further comprises holes passing through the insulating layer in pixel regions between the first and second sub-electrodes, and the field emission display further comprises counter electrodes, each counter electrode being formed within the holes to be electrically connected to the gate electrodes.
- 26. The field emission display of claim 22, wherein the phosphor layers include R (red), G (green), and B (blue) phosphor layers corresponding to each of the field emitters, wherein each of the R, G, and B phosphor layers is substantially triangular in shape in which each triangle shape includes an apex corresponding to positions of one of the field emitters and sides extending from the apex.
- 27. The field emission display of claim 26, wherein, along the second direction, the apexes of the phosphor layers point in opposite directions.
- 28. The field emission display of claim 26, further comprising spacers provided between the front and rear substrates, the spacers including first and second supports surrounding without covering two sides of the phosphor layers.
- 29. The field emission display of claim 28, wherein the spacers include also a third side connected to the first and second sides and formed along the first direction to be parallel to a side of an adjacent phosphor layer.
- 30. A field emission display, comprising:a front substrate and a rear substrate disposed opposite one another with a predetermined gap therebetween; gate electrodes formed in a line pattern in a first direction on a surface of the rear substrate opposite the front substrate; an insulating layer formed over an entire surface of the rear substrate and covering the gate electrodes; cathode electrodes arranged in a line pattern in a second direction perpendicular to the first direction, each of the cathode electrode comprising holes that expose the insulating layer at pixel regions, each pixel region defined at an intersection of one of the gate electrodes and one of the cathode electrodes; field emitters formed on the cathode electrodes at areas corresponding to each pixel region, the field emitters including first emitters and second emitters alternately arranged in the first direction; an anode electrode formed over an entire surface of the front surface opposite to the rear substrate; and phosphor layers formed on the anode electrode, wherein: the holes include first and second sides that are parallel to the gate electrodes, the first emitters are formed on the cathode electrodes along the first sides of the holes, and the second emitters are formed on the cathode electrodes along the second sides of the holes.
- 31. The field emission display of claim 30, further comprising passageways, which are formed within the holes and passing through the insulating layer, and the field emission display further comprises counter electrodes formed within the holes and within the passageways to be electrically connected to the gate electrodes.
- 32. The field emission display of claim 30, wherein along an area corresponding to one of the gate electrodes, the first and second emitters are formed on the cathode electrodes respectively at ones of the first and second sides of the holes, andalong an adjacent one of the gate electrodes, the first and second emitters are formed on the cathode electrodes respectively at others of the second and first sides of the holes.
- 33. The field emission display of claim 32, further comprising passageways, which are formed within the holes and passing through the insulating layer, and the field emission display further comprises counter electrodes formed within the holes and within the passageways to be electrically connected to the gate electrodes.
- 34. The field emission display of claim 30, wherein the phosphor layers include R (red), G (green), and B (blue) phosphor layers corresponding to each of the field emitters, wherein each of the R, G, and B phosphor layers are substantially triangular in shape in which each triangle shape includes an apex corresponding to positions of the field emitters and sides extending from the apex.
- 35. The field emission display of claim 34, wherein:along one of the first and second directions, apexes of the phosphor layers point in the one direction to form a designated line passing through these apexes, and along a line adjacent and parallel to the designated line, apexes of the phosphor layers point in the opposite direction, this pattern repeating for all the phosphor layers.
- 36. The field emission display of claim 34, further comprising spacers provided between the front and rear substrates, the spacers including three supports that are rotationally symmetrical about a center point where corners of six phosphor layers merge.
- 37. The field emission display of claim 36, wherein the spacers include six supports that are rotationally symmetrical about the center point.
- 38. A field emission display, comprising:first and second substrates having first and second opposing surfaces, respectively, which are separated by a gap; an anode electrode formed on the first opposing surface; phosphor layers formed on the anode electrode and divided into pixel regions which are arranged in first and second directions; a plurality of adjacently arranged gate electrodes formed on the second opposing surface and running in one of the first and second directions; a plurality of adjacently arranged cathode electrodes formed over the gate electrodes and running transverse to the gate electrodes; an insulating layer which insulates the cathode electrodes and the gate electrodes; and a plurality of field emitters formed on the cathode electrodes, wherein: one of the plurality of field emitters is formed at each area where one of the plurality of cathode electrodes crosses one of the plurality of gate electrodes, the field emitters are arranged in rows running in the first direction, and the field emitters of pairs of adjacent rows form zigzag patterns.
- 39. The field emission display of claim 38, wherein adjacent zigzag patterns have a same pattern orientation.
- 40. The field emission display of claim 39, further comprising:a plurality of counter electrodes; and wherein: each cathode has a window through which the gate electrodes are accessible, a group of the plurality of counter electrodes is formed in each window, each of the plurality of counter electrodes is formed adjacent a respective one of the plurality of field emitters, and each of the plurality of counter electrodes is formed to contact a selected one of the plurulity of gate electrodes.
- 41. The field emission display of claim 39, further comprising:a plurality of counter electrodes; and wherein: each cathode has a plurality of windows, one of the plurality of gate electrodes is accessible through each window, each of the plurality of field emitters is formed adjacent a respective one of the plurality of windows; one of the plurality of counter electrodes is formed in each of the plurality of windows, and each of the plurality of counter electrodes is formed to contact a selected one of the plurality of gate electrodes.
- 42. The field emission display of claim 39, wherein the field emitters are formed of one or more carbon-based materials selected from the group consisting of carbon nanotubes, graphite, diamond-like carbon, and C60 (Fullerene).
- 43. The field emission display of claim 38, wherein adjacent zigzag patterns have an opposite pattern orientation.
- 44. The field emission display of claim 43, further comprising:a plurality of counter electrodes; and wherein: each cathode has a window through which the gate electrodes are accessible, a group of the plurality of counter electrodes is formed in each window, each of the plurality of counter electrodes is formed adjacent a respective one of the plurality of field emitters, and each of the plurality of counter electrodes is formed to contact a selected one of the plurality of gate electrodes.
- 45. The field emission display of claim 43, further comprising:a plurality of counter electrodes; and wherein: each cathode has a plurality of windows, one of the plurality of gate electrodes is accessible through each window, each of the plurality of field emitters is formed adjacent a respective one of the plurality of windows; one of the plurality of counter electrodes is formed in each of the plurality of windows, and each of the plurality of counter electrodes is formed to contact a selected one of the plurality of gate electrodes.
- 46. The field emission display of claim 43, wherein the field emitters are formed of one or more carbon-based materials selected from the group consisting of carbon nanotubes, graphite, diamond-like carbon, and C60 (Fullerene).
- 47. The field emission display of claim 38, wherein the field emitters are formed of one or more carbon-based materials selected from the group consisting of carbon nanotubes, graphite, diamond-like carbon, and C60 (Fullerene).
- 48. The field emission display of claim 38, wherein:each pixel region has a triangle shape having a base and an apex; each pixel region is positioned across the gap from a corresponding one of the field emitters; and each field emitter is positioned nearer to the apex of the corresponding pixel than to the base of the corresponding pixel.
- 49. The field emission display of claim 48, wherein:the first and second directions correspond to rows and columns of an array, the apexes of adjacent pixel regions in each row of the array alternate directions, and the apexes of adjacent pixel regions in each column of the array have a same direction.
- 50. The field emission display of claim 49, further comprising a spacer system which isolates each of the plurality of pixel regions from the field emitters corresponding to adjacent pixel regions, the spacer system being formed in the gap.
- 51. The field emission display of claim 50, wherein:the first and second directions correspond to rows and columns of an array, the apexes of adjacent pixel regions in each row of the array alternate directions, and the apexes of adjacent pixel regions in each column of the array alternate directions.
- 52. The field emission display of claim 48, wherein:the first and second directions correspond to rows and columns of an array, the apexes of adjacent pixel regions in each row of the array alternate directions, and the apexes of adjacent pixel regions in each column of the array alternate directions.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2002-0016804 |
Mar 2002 |
KR |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of Korean Application No. 2002-16804 filed Mar. 27, 2002, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
US Referenced Citations (3)