CN101093774A - Flat panel display with bevelled grid controlled cathode structure in truncated cone form, and fabricating technique - Google Patents
Flat panel display with bevelled grid controlled cathode structure in truncated cone form, and fabricating technique Download PDFInfo
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Abstract
The flat panel display includes following parts: sealed vacuum cavity composed of glass faceplate of anode, glass faceplate of cathode, and glassed-in frame; anode conductive layer on the glass faceplate of anode, and phosphor layer on the anode conductive layer; the support wall structure between the glass faceplate of anode and the glass faceplate of cathode, and accessorial components for getter; cathode conductive layer, Nano carbon tube, and beveled circular truncated cone grid controlled cathode structure setup on the glass faceplate of cathode. The invention raises efficiency and quantity of electron emission of cathode in Nano carbon tube, reduces operating voltage of grid electrode so as to be in favor of preparing flat device in high quality. Advantages are: stable and reliable fabricating procedure, simple technique, low fabricating cost, and ordinary structure.
Description
Technical field
The invention belongs to the mutual crossing domain in technical field of flat panel display, microelectronics science and technology field, vacuum science and technical field and nanometer science and technology field, the element manufacturing that relates to panel field emission display, particularly a kind of flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form and manufacture craft thereof.
Background technology
The panel field emission display spare of carbon nanotube cathod is a kind of microelectronic vacuum class flat panel display equipment, the awkward silence at a meeting that it has made full use of carbon nanotube cathod causes emission principle, rely on the low-work voltage of grid structure to make a large amount of electronics of carbon nanotube cathod emission, the phosphor powder layer in the bombardment anode construction and send visible light.In fact the operation principle of this display is exactly a kind of improvement of cathode-ray tube display operation principle, therefore it can reach or surpass the high image quality effect of cathode-ray tube display, but can either realize complete panelized, also have ultrathin structure simultaneously.Carbon nano-tube is a kind of curling very thin graphite linings structure, has little tip curvature radius and high aspect rate, has good field emission characteristics, is a kind of cold-cathode material of function admirable.
Grid structure is one of control element relatively more crucial in the middle of three utmost point field emission flat-panel displays, and can it directly determining carbon nanotube cathod carry out the electronics emission, and it is normally luminous to determine directly that just can integral display spare carry out.When after applying appropriate voltage on the grid structure, will form strong electric field intensity on top, carbon nanotube cathod surface, force carbon nanotube cathod to launch a large amount of electronics.But, in the middle of present most of flat-panel display devices, operating voltage of grid structure all remains high, very difficult with conventional integrated drive electronics interrelates and is in the same place, only can further improve the total device cost and make special-purpose integrated driving voltage, this does not meet the flat device quality requirement.Reduce the realistic problem that operating voltage of grid structure has just become primary solution so.Distance between reduction grid structure and the carbon nanotube cathod structure can further reduce operating voltage of grid structure certainly, but also can be subjected to the constraint of insulating material performance index and manufacture craft simultaneously; Change the macroshape of carbon nanotube cathod, make it just can launch a large amount of electronics under low voltage, this also is an effective way that reduces the grid operating voltage from indirect angle.Therefore, in the manufacturing process of practical devices, adopting which kind of grid structure form actually, and how further to reduce operating voltage of grid structure or the like problem, all is urgent problem.In addition, in the middle of the panel field emission display spare of three-stage structure, guaranteeing that grid structure has carbon nanotube cathod under the prerequisite of good control action, also need to reduce as much as possible the total device cost, carry out reliable and stable, with low cost, function admirable, high quality devices is made.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect that exists in the above-mentioned flat-panel display device and provide a kind of with low cost, manufacturing process is reliable and stable, be made into the power height, the flat-panel monitor and the manufacture craft thereof of bevelled grid controlled cathode structure in truncated cone form simple in structure.
The object of the present invention is achieved like this, comprise by anode glass panel, cathode glass faceplate and all around glass enclose the sealed vacuum chamber that frame constitutes; Anode conductive layer and the phosphor powder layer of preparation on anode conductive layer are arranged on the anode glass panel; Cathode conductive layer, carbon nano-tube and bevelled grid controlled cathode structure in truncated cone form are arranged on cathode glass faceplate; Supporting wall structure between anode glass panel and cathode glass faceplate and getter subsidiary component.
The backing material of described bevelled grid controlled cathode structure in truncated cone form is a glass, as soda-lime glass, Pyrex, just cathode glass faceplate; The insulation paste layer of the printing on the cathode glass faceplate forms block layer; Metal level after the etching above the block layer forms the cathode leg layer; Metal level after the etching above the cathode leg layer forms the negative electrode transition zone; The negative electrode transition zone presents disc face type shape, and its lower surface closely contacts with the cathode leg layer; The silver slurry layer of the printing above the negative electrode transition zone forms and promotes layer; Promote layer and present round platform plagiohedral shape, the bottom surface that promptly promotes layer is one round, above the located negative electrode transition zone, the lower part that promotes layer is a cylinder, it above the cylinder round table surface, the bottom surface diameter of round table surface is identical with cylinder, and the diameter of the upper bottom surface of round table surface is less than cylindrical diameter, is a slope in the side of round table surface; Metal level after the etching on the lifting laminar surface forms cathode conductive layer; Cathode conductive layer only is positioned on the round table surface side of round platform plagiohedral lifting layer, and then there is not cathode conductive layer in other parts; The insulation paste layer that promotes the printing on the laminar surface forms cathode coating; Cathode coating will cover the upper bottom surface and the cylindrical side of round table surface, the i.e. surface of the lifting layer except cathode conductive layer; The insulation paste layer of the printing above the block layer forms wall; The lower surface of wall is the plane, cover cathode leg layer and vacant block layer part; There is circular apertures in the wall, exposes the lifting layer and the cathode conductive layer of bottom; The upper surface of wall is that plane and grid lead layer are in contact with one another; The wall fore-end forms the madial wall of circular apertures, it is shaped as: top is a barrel surface perpendicular to cathode glass faceplate, the lower part also is a barrel surface perpendicular to cathode glass faceplate, mid portion is a slope, promptly from the bottom of top barrel surface, tilt to the lower part barrel surface gradually, till the apical position that arrives the lower part barrel surface, the diameter of top barrel surface is bigger than the diameter of lower part barrel surface; Circular apertures is the circular apertures of a hollow in the formed cross section of wall upper surface in the wall; The height of circular apertures lower part sidewall barrel surface that is to say that the end of circular apertures madial wall mid portion slope points to a lifting layer round platform inclined-plane in the wall between the upper surface and lower surface that promote layer round platform inclined-plane; Metal level after the etching on the wall circular apertures madial wall forms grid control one deck; Grid control one deck is positioned on the barrel surface surface, circular apertures madial wall top and on the mid portion slope surface, does not then have grid control one deck on the barrel surface surface, lower part; The insulation paste layer of wall fore-end printing forms the additional spacer layer; The additional spacer layer cover wall front end grid control one deck above, its side has formed the madial wall of circular apertures, is a barrel surface perpendicular to cathode glass faceplate, its diameter is identical with the diameter of original circular apertures lower part barrel surface; The upper surface of additional spacer layer is a slope, is positioned at circular apertures edge position height, and is downward-sloping gradually successively then, till the upper surface position of arrival interval layer; The height of additional spacer layer will be higher than the upper surface of wall; Metal level after the etching on the additional spacer layer upper surface slope forms two layers of grid control; Metal level after the etching of wall upper surface forms the grid lead layer; Grid lead layer, grid control one deck and grid control all are interconnected for two layers; The insulation paste layer of the printing above the grid lead layer forms the grid cover layer; The grid cover layer is wanted two layers of cover grid trace layer and grid control; Made of carbon nanotubes is on cathode conductive layer.
The fixed position of described bevelled grid controlled cathode structure in truncated cone form is for being fixed on the cathode glass faceplate; The cathode leg layer can be metallic gold, silver, copper, aluminium, molybdenum, chromium, tin; The negative electrode transition zone can be metallic gold, silver, aluminium, molybdenum, chromium, tin; Cathode conductive layer can be metallic iron, cobalt, nickel; Grid control one deck can be metallic gold, silver, aluminium, molybdenum, chromium; Grid control can be metallic gold, silver, aluminium, molybdenum, chromium, tin for two layers; The trend of the trend of grid lead layer and cathode leg layer is orthogonal; The grid lead layer can be metallic gold, silver, aluminium, molybdenum, chromium.
A kind of manufacture craft of flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form, its manufacture craft is as follows:
1) making of cathode glass faceplate: whole plate glass is carried out scribing, produce cathode glass faceplate;
2) making of block layer: on cathode glass faceplate, print insulation paste, behind baking, sintering process, form block layer;
3) making of cathode leg layer: on block layer, prepare a metal level, form the cathode leg layer after the etching;
4) making of negative electrode transition zone: on the cathode leg layer, prepare a metal level, form the negative electrode transition zone after the etching;
5) making of lifting layer: printed silver slurry on the negative electrode transition zone forms the lifting layer behind baking, sintering process;
6) making of cathode conductive layer: on the inclined-plane that promotes layer round table surface, prepare a metal level, form cathode conductive layer after the etching;
7) making of cathode coating:, behind baking, sintering process, form cathode coating promoting the region surface printing insulation paste layer of layer except cathode conductive layer;
8) making of wall: printing insulation paste on block layer forms wall behind baking, sintering process;
9) making of grid control one deck: on the madial wall of wall circular apertures, prepare a metal level, form grid control one deck after the etching;
10) making of additional spacer layer:, behind baking, sintering process, form the additional spacer layer at wall fore-end printing insulation paste;
11) making of two layers of grid control: on the upper surface of additional spacer layer, prepare a metal level, form two layers of grid control after the etching;
12) making of grid lead layer: on the upper surface of wall, prepare a metallic chromium layer, form the grid lead layer after the etching;
13) the tectal making of grid: printing insulation paste on the grid lead layer forms the grid cover layer behind baking, sintering process;
14) cleaning surfaces of bevelled grid controlled cathode structure in truncated cone form is handled: clean is carried out on the surface to bevelled grid controlled cathode structure in truncated cone form, removes impurity and dust;
15) preparation of carbon nano-tube: with made of carbon nanotubes on cathode conductive layer;
16) making of anode glass panel: the dull and stereotyped soda-lime glass of integral body is carried out scribing, produce the anode glass panel;
17) making of anode conductive layer: evaporation one deck tin indium oxide rete on the anode glass panel; Form anode conductive layer after the etching;
18) making of insulation paste layer: at the non-display area printing insulation paste layer of anode conductive layer;
19) making of phosphor powder layer: the viewing area printing phosphor powder layer on anode conductive layer;
20) device assembling: with cathode glass faceplate, anode glass panel, supporting wall structure and all around glass enclose frame and be assembled together, and getter is put in the middle of the cavity, fix with glass powder with low melting point;
21) finished product is made: the device that has assembled is carried out packaging technology form finished parts.
Described step 18 is specially the non-display area printing insulation paste layer at anode conductive layer, is used to prevent the parasitic electrons emission; Through overbaking (baking temperature: 150 ℃, retention time: 5 minutes) afterwards, be placed on and carry out high temperature sintering (sintering temperature: 580 ℃, retention time: 10 minutes) in the sintering furnace.
Described step 19 is specially the viewing area printing phosphor powder layer on anode conductive layer; In the middle of baking oven, toast (baking temperature: 120 ℃, the retention time: 10 minutes).
The device that described step 21 is specially having assembled carries out following packaging technology: toast in the middle of the sample device is put into baking oven; Carry out sintering in the middle of putting into sintering furnace; On exhaust station, carry out device exhaust, sealed-off, on the roasting machine that disappears, the getter of device inside bake and disappears, install pin formation finished parts at last additional.
The present invention has following good effect:
At first, in described bevelled grid controlled cathode structure in truncated cone form, grid control one deck, two layers of grid control and grid lead layer structure have been made respectively.Wherein, the grid lead layer can be delivered to device inside with external voltage, also plays the function of pixel matrix addressing simultaneously; Grid control one deck then can be converted to external voltage the powerful electric field strength on top, carbon nanotube cathod surface, forces carbon nanotube cathod to launch a large amount of electronics; Grid control then is for two layers the effect of playing assistant regulating and controlling carbon nanotube cathod electronics emission, also subsidiary simultaneously have to the additional function that focuses on of the electron beam of process.Because the terminal of grid control one deck directly points to the carbon nanotube cathod surface, and can approach carbon nanotube cathod as much as possible, so just greatly reduced operating voltage of grid structure.
Secondly, in described bevelled grid controlled cathode structure in truncated cone form, above the cathode conductive layer, cathode conductive layer then is to be produced on the round platform plagiohedral to promote on the inclined-plane of layer with the carbon nanotube cathod preparation.Like this, change the shape of carbon nanotube cathod, made full use of the phenomenon that marginal position can be launched a large amount of electronics in the carbon nanotube cathod, improved the electronic transmitting efficiency of carbon nanotube cathod; Greatly increase the electron emission area of carbon nanotube cathod, made more carbon nano-tube all participate in the electronics emission, helped to improve the display brightness of device.
In addition, in described bevelled grid controlled cathode structure in truncated cone form, do not adopt special structure fabrication material, do not adopt special device making technics yet, this has just further reduced the cost of manufacture of whole flat-panel display device to a great extent, simplify the manufacturing process of device, can carry out large-area element manufacturing, helped carrying out business-like large-scale production.
Description of drawings
Fig. 1 has provided the vertical structure schematic diagram of bevelled grid controlled cathode structure in truncated cone form;
Fig. 2 has provided the transversary schematic diagram of bevelled grid controlled cathode structure in truncated cone form;
Fig. 3 has provided and has had the structural representation bevelled grid controlled cathode structure in truncated cone form emitting structural, the carbon nanotube field emission flat-panel screens.
Embodiment
As shown in the figure, the present invention includes by anode glass panel [15], cathode glass faceplate [1] and all around glass enclose the sealed vacuum chamber that frame [20] is constituted; Anode conductive layer [16] and the phosphor powder layer [18] of preparation on anode conductive layer are arranged on the anode glass panel; Cathode conductive layer [6], carbon nano-tube [14] and bevelled grid controlled cathode structure in truncated cone form are arranged on cathode glass faceplate; Supporting wall structure between anode glass panel and cathode glass faceplate [19] and getter [21] subsidiary component.
Described bevelled grid controlled cathode structure in truncated cone form comprises cathode glass faceplate [1], block layer [2], cathode leg layer [3], negative electrode transition zone [4], promotes layer [5], cathode conductive layer [6], cathode coating [7], wall [8], grid control one deck [9], additional spacer layer [10], grid control two layers of [11], grid lead layer [12], grid cover layer [13] and carbon nano-tube [14] part.
The backing material of described bevelled grid controlled cathode structure in truncated cone form is a glass, as soda-lime glass, Pyrex, just cathode glass faceplate; The insulation paste layer of the printing on the cathode glass faceplate forms block layer; Metal level after the etching above the block layer forms the cathode leg layer; Metal level after the etching above the cathode leg layer forms the negative electrode transition zone; The negative electrode transition zone presents disc face type shape, and its lower surface closely contacts with the cathode leg layer; The silver slurry layer of the printing above the negative electrode transition zone forms and promotes layer; Promote layer and present round platform plagiohedral shape, the bottom surface that promptly promotes layer is one round, above the located negative electrode transition zone, the lower part that promotes layer is a cylinder, it above the cylinder round table surface, the bottom surface diameter of round table surface is identical with cylinder, and the diameter of the upper bottom surface of round table surface is less than cylindrical diameter, is a slope in the side of round table surface; Metal level after the etching on the lifting laminar surface forms cathode conductive layer; Cathode conductive layer only is positioned on the round table surface side of round platform plagiohedral lifting layer, and then there is not cathode conductive layer in other parts; The insulation paste layer that promotes the printing on the laminar surface forms cathode coating; Cathode coating will cover the upper bottom surface and the cylindrical side of round table surface, the i.e. surface of the lifting layer except cathode conductive layer; The insulation paste layer of the printing above the block layer forms wall; The lower surface of wall is the plane, cover cathode leg layer and vacant block layer part; There is circular apertures in the wall, exposes the lifting layer and the cathode conductive layer of bottom; The upper surface of wall is that plane and grid lead layer are in contact with one another; The wall fore-end forms the madial wall of circular apertures, it is shaped as: top is a barrel surface perpendicular to cathode glass faceplate, the lower part also is a barrel surface perpendicular to cathode glass faceplate, mid portion is a slope, promptly from the bottom of top barrel surface, tilt to the lower part barrel surface gradually, till the apical position that arrives the lower part barrel surface, the diameter of top barrel surface is bigger than the diameter of lower part barrel surface; Circular apertures is the circular apertures of a hollow in the formed cross section of wall upper surface in the wall; The height of circular apertures lower part sidewall barrel surface that is to say that the end of circular apertures madial wall mid portion slope points to a lifting layer round platform inclined-plane in the wall between the upper surface and lower surface that promote layer round platform inclined-plane; Metal level after the etching on the wall circular apertures madial wall forms grid control one deck; Grid control one deck is positioned on the barrel surface surface, circular apertures madial wall top and on the mid portion slope surface, does not then have grid control one deck on the barrel surface surface, lower part; The insulation paste layer of wall fore-end printing forms the additional spacer layer; The additional spacer layer cover wall front end grid control one deck above, its side has formed the madial wall of circular apertures, is a barrel surface perpendicular to cathode glass faceplate, its diameter is identical with the diameter of original circular apertures lower part barrel surface; The upper surface of additional spacer layer is a slope, is positioned at circular apertures edge position height, and is downward-sloping gradually successively then, till the upper surface position of arrival interval layer; The height of additional spacer layer will be higher than the upper surface of wall; Metal level after the etching on the additional spacer layer upper surface slope forms two layers of grid control; Metal level after the etching of wall upper surface forms the grid lead layer; Grid lead layer, grid control one deck and grid control all are interconnected for two layers; The insulation paste layer of the printing above the grid lead layer forms the grid cover layer; The grid cover layer is wanted two layers of cover grid trace layer and grid control; Made of carbon nanotubes is on cathode conductive layer.
The fixed position of described bevelled grid controlled cathode structure in truncated cone form is for being fixed on the cathode glass faceplate; The cathode leg layer is metal gold, silver, copper, aluminium, molybdenum, chromium, tin; The negative electrode transition zone is metal gold, silver, aluminium, molybdenum, chromium, tin; Cathode conductive layer is metallic iron, cobalt, nickel; Grid control one deck is metal gold, silver, aluminium, molybdenum, chromium; Grid control is metal gold, silver, aluminium, molybdenum, chromium, tin for two layers; The trend of grid lead layer and cathode leg layer move towards orthogonal; The grid lead layer is metal gold, silver, aluminium, molybdenum, chromium.
A kind of manufacture craft of flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form, its manufacture craft is as follows:
1) cathode glass faceplate [1] is made: to the dull and stereotyped soda-lime glass scribing of integral body, make cathode glass faceplate;
2) making of block layer [2]: on cathode glass faceplate, print insulation paste, behind baking, sintering process, form block layer;
3) making of cathode leg layer [3]: on block layer, prepare a metal molybdenum layer, form the cathode leg layer after the etching;
4) making of negative electrode transition zone [4]: on the cathode leg layer, prepare a metallic chromium layer, form the negative electrode transition zone after the etching;
5) making of lifting layer [5]: printed silver slurry on the negative electrode transition zone forms the lifting layer behind baking, sintering process;
6) making of cathode conductive layer [6]: on the inclined-plane that promotes layer round table surface, prepare a metal nickel dam, form cathode conductive layer after the etching;
7) making of cathode coating [7]:, behind baking, sintering process, form cathode coating promoting the region surface printing insulation paste layer of layer except cathode conductive layer;
8) making of wall [8]: printing insulation paste on block layer forms wall behind baking, sintering process;
9) making of grid control one deck [9]: on the madial wall of wall circular apertures, prepare a metallic chromium layer, form grid control one deck after the etching;
10) making of additional spacer layer [10]:, behind baking, sintering process, form the additional spacer layer at wall fore-end printing insulation paste;
11) making of grid control two layers [11]: on the upper surface of additional spacer layer, prepare a metallic chromium layer, form two layers of grid control after the etching;
12) making of grid lead layer [12]: on the upper surface of wall, prepare a metallic chromium layer, form the grid lead layer after the etching;
13) making of grid cover layer [13]: printing insulation paste on the grid lead layer forms the grid cover layer behind baking, sintering process;
14) cleaning surfaces of bevelled grid controlled cathode structure in truncated cone form is handled: clean is carried out on the surface to bevelled grid controlled cathode structure in truncated cone form, removes impurity and dust;
15) preparation of carbon nano-tube [14]: with made of carbon nanotubes on cathode conductive layer;
16) reprocessing of carbon nano-tube: carbon nano-tube is carried out reprocessing, improve field emission characteristics;
17) anode glass panel [15] is made: to the dull and stereotyped soda-lime glass scribing of integral body, make the anode glass panel;
18) making of anode conductive layer [16]: evaporation one deck tin indium oxide rete on the anode glass panel; Form anode conductive layer after the etching;
19) making of insulation paste layer [17]: at the non-display area printing insulation paste layer of anode conductive layer;
20) making of phosphor powder layer [18]: the viewing area printing phosphor powder layer on anode conductive layer;
21) device assembling: with cathode glass faceplate, anode glass panel, supporting wall structure [19] and all around glass enclose frame [20] and be assembled together, and getter [21] is put in the middle of the cavity, fix with glass powder with low melting point.Around face glass, smeared glass powder with low melting point, fixed with clip;
22) finished product is made: the device that has assembled is carried out packaging technology form finished parts.
Described step 19 is specially the non-display area printing insulation paste layer at anode conductive layer, is used to prevent the parasitic electrons emission; Through overbaking (baking temperature: 150 ℃, retention time: 5 minutes) afterwards, be placed on and carry out high temperature sintering (sintering temperature: 580 ℃, retention time: 10 minutes) in the sintering furnace.
Described step 20 is specially the viewing area printing phosphor powder layer on anode conductive layer; In the middle of baking oven, toast (baking temperature: 120 ℃, the retention time: 10 minutes).
The device that described step 22 is specially having assembled carries out following packaging technology: toast in the middle of the sample device is put into baking oven; Carry out sintering in the middle of putting into sintering furnace; On exhaust station, carry out device exhaust, sealed-off, on the roasting machine that disappears, the getter of device inside bake and disappears, install pin formation finished parts at last additional.
Claims (7)
1, a kind of flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form, comprise by anode glass panel [15], cathode glass faceplate [1] and all around glass enclose the sealed vacuum chamber that frame [20] is constituted; Be arranged on anode conductive layer [16] and the phosphor powder layer [18] of preparation on anode conductive layer on the anode glass panel; Supporting wall structure between anode glass panel and cathode glass faceplate [19] and getter subsidiary component [21]; It is characterized in that: cathode glass faceplate is provided with cathode conductive layer [6], carbon nano-tube [14] and bevelled grid controlled cathode structure in truncated cone form.
2, the flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form according to claim 1 is characterized in that: the backing material of described bevelled grid controlled cathode structure in truncated cone form is soda-lime glass, Pyrex, i.e. cathode glass faceplate; The insulation paste layer that prints on the cathode glass faceplate forms block layer; Metal level formation cathode leg layer after the etching above the block layer; Metal level formation negative electrode transition zone after the etching above the cathode leg layer; The negative electrode transition zone presents disc face type shape, and its lower surface closely contacts with the cathode leg layer; Silver slurry layer above the negative electrode transition zone forms and promotes layer; Promote layer and present round platform plagiohedral shape, promptly promoting layer bottom surface is round, be located in above the negative electrode transition zone, promoting layer lower part is cylinder, it above the cylinder round table surface, round table surface bottom surface diameter is identical with cylinder, and round table surface upper bottom surface diameter is less than cylinder diameter, and the round table surface side is a slope; Metal level formation cathode conductive layer after the etching on the lifting laminar surface; Cathode conductive layer is positioned at the round platform plagiohedral and promotes on the layer round table surface side; Promote the insulation paste layer that prints on the laminar surface and form cathode coating; Cathode coating covers round table surface upper bottom surface and cylinder side, promptly promotes the surface of layer except cathode conductive layer; The insulation paste layer that block layer prints above forms wall; The wall lower surface is the plane, covers cathode leg layer and vacant block layer part; There is circular apertures in the wall, exposes the bottom and promote layer and cathode conductive layer; The wall upper surface is that plane and grid lead layer are in contact with one another; The wall fore-end forms the circular apertures madial wall, it is shaped as: top is perpendicular to the barrel surface of cathode glass faceplate, the lower part is perpendicular to the barrel surface of cathode glass faceplate, mid portion is a slope, promptly from the bottom of top barrel surface, tilt to the lower part barrel surface gradually, till arriving barrel surface top, lower part, top barrel surface diameter is bigger than lower part barrel surface diameter; Circular apertures is the circular apertures of a hollow in wall cross section that upper surface forms in the wall; Sidewall barrel surface height in circular apertures lower part is between promoting between layer round platform inclined-plane upper surface and the lower surface in the wall, and promptly terminal sensing of circular apertures madial wall mid portion slope promotes layer round platform inclined-plane; Metal level formation grid control one deck after the etching on the wall circular apertures madial wall; Grid control one deck is positioned on the barrel surface surface, circular apertures madial wall top and on the mid portion slope surface, does not have grid control one deck on the barrel surface surface, lower part; The insulation paste layer of wall fore-end printing forms the additional spacer layer; The additional spacer layer covers above wall front end grid control one deck, and its side forms the circular apertures madial wall, is the barrel surface perpendicular to cathode glass faceplate, and its diameter is identical with original circular apertures lower part barrel surface diameter; Additional spacer layer upper surface is slope, is positioned at circular apertures edge position height, and be downward-sloping gradually, till the layer upper surface of arrival interval; The additional spacer layer height is higher than the wall upper surface; Metal level on the additional spacer layer upper surface slope after the etching forms two layers of grid control; Metal level forms the grid lead layer after the wall upper surface etching; Grid lead layer, grid control one deck and grid control all are interconnected for two layers; The insulation paste layer that the grid lead layer prints above forms the grid cover layer; Two layers of grid cover layer cover gate trace layer and grid control; Made of carbon nanotubes is on cathode conductive layer.
3, the flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form according to claim 2 is characterized in that: described bevelled grid controlled cathode structure in truncated cone form is for being fixed on the cathode glass faceplate; The cathode leg layer is gold, silver, copper, aluminium, molybdenum, chromium, tin; The negative electrode transition zone is gold, silver, aluminium, molybdenum, chromium, tin; Cathode conductive layer is iron, cobalt, nickel; Grid control one deck is gold, silver, aluminium, molybdenum, chromium; Grid control is gold, silver, aluminium, molybdenum, chromium, tin for two layers; Grid lead layer trend is vertical mutually with cathode leg layer trend; The grid lead layer is gold, silver, aluminium, molybdenum, chromium.
4, a kind of manufacture craft of flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form is characterized in that, its manufacture craft is as follows:
1) making of cathode glass faceplate [1]:, make cathode glass faceplate to whole plate glass scribing;
2) making of block layer [2]: on cathode glass faceplate, print insulation paste, behind baking, sintering process, form block layer;
3) making of cathode leg layer [3]: on block layer, make metal level, be etched into the cathode leg layer;
4) making of negative electrode transition zone [4]: on the cathode leg layer, prepare a metal level, form the negative electrode transition zone after the etching;
5) making of lifting layer [5]: printed silver slurry on the negative electrode transition zone forms the lifting layer behind baking, sintering process;
6) making of cathode conductive layer [6]: on lifting layer round table surface inclined-plane, prepare a metal level, form cathode conductive layer after the etching;
7) making of cathode coating [7]:, behind baking, sintering process, form cathode coating promoting the region surface printing insulation paste layer of layer except cathode conductive layer;
8) making of wall [8]: on block layer, print insulation paste, behind baking, sintering process, form wall;
9) making of grid control one deck [9]: on the madial wall of wall circular apertures, prepare a metal level, form grid control one deck after the etching;
10) making of additional spacer layer [10]:, behind baking, sintering process, form the additional spacer layer at wall fore-end printing insulation paste;
11) making of grid control two layers [11]: on the upper surface of additional spacer layer, prepare a metal level, form two layers of grid control after the etching;
12) making of grid lead layer [12]: on the upper surface of wall, prepare a metal level, form the grid lead layer after the etching;
13) making of grid cover layer [13]: printing insulation paste on the grid lead layer forms the grid cover layer behind baking, sintering process;
14) cleaning surfaces of bevelled grid controlled cathode structure in truncated cone form is handled: clean is carried out on the surface to bevelled grid controlled cathode structure in truncated cone form, removes impurity and dust;
15) preparation of carbon nano-tube [14]: with made of carbon nanotubes on cathode conductive layer;
16) making of anode glass panel [15]:, make the anode glass panel to whole plate glass scribing;
17) making of anode conductive layer [16]: evaporation one deck tin indium oxide rete on the anode glass panel; Form anode conductive layer after the etching;
18) making of insulation paste layer [17]: at anode conductive layer non-display area printing insulation paste layer;
19) making of phosphor powder layer [18]: the viewing area printing phosphor powder layer on anode conductive layer;
20) device assembling: with cathode glass faceplate, anode glass panel, supporting wall structure [19] and all around glass enclose frame [20] and install to together, getter [21] is put into cavity, fix with glass powder with low melting point;
21) finished product is made: the device that has assembled is carried out packaging technology form finished parts.
5, the manufacture craft of the flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form according to claim 4 is characterized in that: described step 18 is specially the non-display area printing insulation paste layer at anode conductive layer; Through overbaking, baking temperature: 150 ℃, the retention time: 5 minutes, afterwards, be placed on and carry out high temperature sintering in the sintering furnace, sintering temperature: 580 ℃, the retention time: 10 minutes.
6, the manufacture craft of the flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form according to claim 4 is characterized in that: described step 19 is specially the viewing area printing phosphor powder layer on anode conductive layer; In the middle of baking oven, toast baking temperature: 120 ℃, the retention time: 10 minutes.
7, the manufacture craft of the flat-panel monitor of bevelled grid controlled cathode structure in truncated cone form according to claim 4 is characterized in that: described step 21 is specially carries out packaging technology to assembling device: the sample device is put into baking oven toast; Put into the sintering furnace sintering; On exhaust station, carry out device exhaust, sealed-off, on the roasting machine that disappears, the device inside getter bake and disappears, install pin formation finished parts additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200710054597A CN100580861C (en) | 2007-06-19 | 2007-06-19 | Flat panel display with bevelled grid controlled cathode structure in truncated cone form, and fabricating technique thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710054597A CN100580861C (en) | 2007-06-19 | 2007-06-19 | Flat panel display with bevelled grid controlled cathode structure in truncated cone form, and fabricating technique thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN101093774A true CN101093774A (en) | 2007-12-26 |
| CN100580861C CN100580861C (en) | 2010-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710054597A Expired - Fee Related CN100580861C (en) | 2007-06-19 | 2007-06-19 | Flat panel display with bevelled grid controlled cathode structure in truncated cone form, and fabricating technique thereof |
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| CN (1) | CN100580861C (en) |
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| CN101728191B (en) * | 2009-12-08 | 2011-08-24 | 中原工学院 | Flat-panel display of slope high-ring grid-control multi-face cathode structure and manufacturing process thereof |
| CN101728192B (en) * | 2009-12-08 | 2011-12-07 | 中原工学院 | Flat-panel display with inverted Y-shaped inclined high-grating single-point cathodic control structure and manufacture process thereof |
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| CN101728191B (en) * | 2009-12-08 | 2011-08-24 | 中原工学院 | Flat-panel display of slope high-ring grid-control multi-face cathode structure and manufacturing process thereof |
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| CN106098512A (en) * | 2016-07-07 | 2016-11-09 | 金陵科技学院 | The active display of oblique straight parallel fork gate mouth word point triangle top-type cathode construction |
| CN106098513A (en) * | 2016-07-07 | 2016-11-09 | 金陵科技学院 | The active display of the straight pentagonal pyramid cathode construction of slanted half-circle gate point |
| CN106128920A (en) * | 2016-07-07 | 2016-11-16 | 金陵科技学院 | The active display of the staggered many faceted pebbles composite cathode structure of branch's silver gate |
| CN106098513B (en) * | 2016-07-07 | 2017-08-29 | 金陵科技学院 | The active display and its manufacture craft of the straight pentagonal pyramid cathode construction of slanted half-circle gate point |
| CN106847642A (en) * | 2017-01-03 | 2017-06-13 | 金陵科技学院 | The active display of the double positive and negative class semicircle edge cathode constructions long of multiple surface assembled simple gate control |
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| CN106847644A (en) * | 2017-01-03 | 2017-06-13 | 金陵科技学院 | Flat rear Qu Zhengyuan solely gates the active display of two ribs point side cathode construction straggly before double |
| CN106847644B (en) * | 2017-01-03 | 2018-01-30 | 金陵科技学院 | Flat rear Qu Zhengyuan solely gates the active display of two ribs point side straggly cathode construction before double |
| CN106847642B (en) * | 2017-01-03 | 2018-04-17 | 金陵科技学院 | The active display of the double positive and negative long edge cathode constructions of class semicircle of multiple surface assembled simple gate control |
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