CN1221201A - Flat panel display - Google Patents
Flat panel display Download PDFInfo
- Publication number
- CN1221201A CN1221201A CN98125781A CN98125781A CN1221201A CN 1221201 A CN1221201 A CN 1221201A CN 98125781 A CN98125781 A CN 98125781A CN 98125781 A CN98125781 A CN 98125781A CN 1221201 A CN1221201 A CN 1221201A
- Authority
- CN
- China
- Prior art keywords
- substrate
- flat
- panel monitor
- layer
- field emission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/08—Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g. backing-plates for storage tubes or collecting secondary electrons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2329/00—Electron emission display panels, e.g. field emission display panels
- H01J2329/02—Electrodes other than control electrodes
- H01J2329/04—Cathode electrodes
- H01J2329/0407—Field emission cathodes
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Cold Cathode And The Manufacture (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
A flat panel display include: a first substrate; a plurality of first conductive layers disposed on the first substrate according to the specified pattern; a plurality of field emission layers formed on the first conduction layer; and a plurality of dielectric layers formed on the remainder between the adjacent conductive layers. The flat panel display also includes a second substrate having a scheduled distance from the first substrate; a vacuum chamber formed by combining the first and second substrate; a plurality of second conductive layers disposed on the second substrate according to the specified pattern, and installed in length and breadth on the first conduction layer; a plurality of optical emission layers formed on the second conductive layer; a plurality of second dielectric layers formed on the remainder of the optical emission layer adjacent to the second substrate; and a discharging gas injected into the vacuum chamber.
Description
The present invention relates to a kind of flat-panel monitor, more particularly, relate to following flat-panel monitor, wherein, excite discharge gas to produce ultraviolet ray from graphite-based field emissive cathode electrons emitted, simultaneously, ultraviolet ray bombardment cover on the light emission anode fluorescent material in case on screen display image.
Flat-panel monitor become attractive display unit be because it have more in light weight than cathode ray tube, the advantage that volume is little.
In flat-panel monitor, known field emission demonstration is particularly suitable for as having good display characteristic, simultaneously can the low large scale display unit of other display unit of loss-rate.
A kind of typical diode field-emitter display comprises: two are parallel to each other and the substrate of a suitable distance at interval; Be formed at above-mentioned suprabasil a plurality of cathode electrodes and anode electrode by predetermined pattern with arranged in form in length and breadth respectively; Dielectric layer on adjacent cathode electrode and the substrate remainder between the anode electrode; Be formed at the field emission layer on the cathode electrode; And be formed at light-emitting layer on the anode electrode.Two substrates are engaged to and form a vacuum chamber together, and the intersection that causes emission layer and light-emitting layer on the scene is formed with a plurality of pixels.In this diode structure, under local (single pixel) electric field, bombard on the suitable fluorescent material of light-emitting layer by field emission layer electrons emitted.
By being set, extra gate electrode also can produce the triode field emission display between anode electrode and cathode electrode.
Usually, a large amount of, point-device little tip cathode is used as electron source.This little tip cathode is to make by covering skim fusible metal such as tungsten and molybdenum and it is etched into the taper with tip in a substrate.
Yet above-mentioned little tip cathode is because ion bombardment former thereby be easy to be damaged, so it needs the high vacuum environment of a 10-8Torr level.Under the situation that this environment can not be provided, reduce the useful life of little tip cathode.And because the fine structure of described negative electrode needs complicated procedure of processing such as spraying plating, film mechanical and etching just can be finished, so use the field-emitter display of little tip cathode to have very high manufacturing cost.
The object of the present invention is to provide a kind of flat-panel monitor, it had both made under low-power and rough vacuum environment also has good performance characteristic.
In order to reach this and other purposes, flat-panel monitor comprises: first substrate a plurality ofly is positioned at first suprabasil first conducting shell with predetermined pattern; A plurality of field emission layers that are formed on first conducting shell, and the dielectric layer that is shaped on the remainder of a plurality of first substrates between adjacent conductive layer.
Flat-panel monitor further comprises: one and first substrate is at a distance of second substrate of a preset distance, first and second substrates connect vacuum chamber of formation, a plurality of second conducting shells are pressed certain pattern setting in second substrate, second conducting shell and first conducting shell arrange that in length and breadth a plurality of light-emitting layers are formed on second conducting shell; A plurality of second dielectric layers are formed on the remainder of second substrate between the adjacent light emission layer; And fill into discharge gas in the vacuum layer.
In flat-panel monitor, when first and second conducting shells are applied alternating voltage, thereby electronics sends from light-emitting layer and excites discharge gas.At this moment, the discharge gas generation ultraviolet light that is excited.Thereby the ultraviolet light bump covers fluorescent material display image on screen of light-emitting layer.
The detailed description of being done can make the present invention obtain more complete understanding in conjunction with the drawings, while also can make many other advantages of the present invention become more obvious and can be better understood, label identical in the accompanying drawing is in order to represent same or analogous parts, wherein:
Fig. 1 is the part sectioned view according to the flat-panel monitor of the embodiment of the invention;
Fig. 2 to Fig. 5 shows the manufacturing step according to the used cathode assembly of flat-panel monitor of the embodiment of the invention;
Fig. 6 to Fig. 9 shows the manufacturing step according to the used anode assemblies of flat-panel monitor of this bright embodiment;
Figure 10 is the crystal structure of graphite schematic diagram.
With reference to the accompanying drawings the preferred embodiments of the present invention are made an explanation.
For the sake of clarity, the cathode assembly with the flat-panel monitor of the present invention shown in Fig. 1 partly turns over 90 degree.As shown in Figure 1, flat-panel monitor comprises that one is formed on field emissive cathode on first substrate of glass 1, and a light emission anode that is formed on second substrate of glass 3.First and second substrates are parallel to each other and a preset space length setting at interval.
At first one cathode assembly manufacture process is described with reference to Fig. 2 to Fig. 4.
At first, as shown in Figure 2, a plurality of conducting shells 5 carry out etching and a plurality of conducting shells 5 are formed in first substrate 1 linearly by screen seal or spraying plating layer of metal silver and to it.
Then, as shown in Figure 3, in first substrate 1, form a plurality of dielectric layers 7 by shielding seal or spraying plating one deck glass thereon linearly.Each dielectric medium 7 is inserted between the adjacent parallel conducting shell 5.
At last, as shown in Figure 4, by screen seal one deck graphite in first substrate 1 and heat-treat and on conducting shell 5, form a plurality of field emission layers 9 linearly, thereby finish the cathode assembly manufacture process.
Simultaneously, in this embodiment, graphite particle is used to emitting electrons under the electric field action that is applied.As shown in figure 10, graphite has anisotropic structure, also, is being strong dual link structure aspect (0001) crystal face, and a little less than vertical direction is Van der Waals syndeton.Therefore, graphite material has favorable conductive/heat conductivility and in vertical direction conductibility is poor in (0001) crystal plane direction.Graphite particle has a plurality of such (0001) crystal faces, and the sharp edge on this surface can be used as natural field emission end.
Under the contrast, be used to the diamond that field emission is used, when (111) crystal face is coated with boron or nitrogen, on this crystal plane direction, shown negatron compatibility (NEA).This NEA phenomenon is: the energy level in conducting region is higher than the energy level of free electron in vacuum state.Therefore, the potential barrier of reversing diamond surface only needs quite low electric field, and in other words, diamond is well suited for being used for field emission.
(0001) crystal face of graphite has and the same hexagonal structure of adamantine (111) crystal face.Moreover, owing in the graphite treatment process, sandwiched some nitrogen impurities, so also show the NEA phenomenon.In addition, graphite also has self-healing feature; That is, although because ion bombardment, graphite crystal face edge can rupture, and they also can be regenerated.Like this, graphite just becomes the ideal material that can be used for field emissive cathode.
With reference now to Fig. 6 to Fig. 8 antianode assembly manufacture process, describes.
At first, as shown in Figure 6, carry out etching, can in second substrate 3, linearity form a plurality of conducting shells 11 by the spraying plating indium tin oxide and to it.
In turn, as shown in Figure 7, heat-treat, can on conducting shell 11, form a plurality of light-emitting layers 13 by screen seal fluorescent material and to it.
At last, heat-treat by screen seal one deck glass and to it, a plurality of dielectric layers 15 are formed on the remainder of second substrate 3, between adjacent light-emitting layer 13.Dielectric layer 15 is arranged to such an extent that parallel with light-emitting layer 13.
As Fig. 5 and shown in Figure 9, negative electrode and anode assemblies after the processing are connected with each other.At this moment, apply seal glass material 19 and 21 along the neighboring, simultaneously conducting shell 5 and 11 is provided with to form a pixel location matrix in mode in length and breadth.Then, by under a predetermined pressure, heat-treating connected assembly is sealed together.Then, sealed unit is evacuated and remains under the vacuum state.At last, discharge gas is injected into the inner space that is evacuated the unit, thereby finishes the flat-panel monitor manufacture process.
Described discharge gas preferably is used in argon, neon and mercury gas mixture or the neon xenon-133 gas mixture in the plasma display panel usually.
At work, conducting shell 5 and 11 is applied alternating current, added electric field reverses potential barrier and the emitting electrons therefrom in the emission layer 9.The electronics that is launched is accelerated under the effect of electric field that imposes on conducting shell 11, thereby excites discharge gas to produce ultraviolet light simultaneously.
Then, thus ultraviolet light is mapped on the corresponding fluorescent material of light-emitting layer 13 it is carried out the light emission.In the time of by second substrate 3, the light of being launched has reproduced visual image.
In this preferred embodiment, the seam between the substrate 1 and 3 is apart from 5～50 mu m ranges, and the electric field that is applied remains on 10
6V/m, and vacuum degree reaches 10
-6Torr, under this state, the brightness (200Cd/cm that flat-panel monitor of the present invention had
2) be twice in prior art flat-panel monitor for realizing that field emission uses the fusible metal awl to hold, improved consistency simultaneously.
In the present invention, the material that is used for field emissive cathode is not limited to graphite, can also be the carbon (DLC) of diamond or similar diamond lattic structure.
In addition, light-emitting layer 13 also can be made of low-voltage fluorescence material or color CRT fluorescent material.
The type of used discharge gas is depended in the selection of relevant fluorescent material.For example, when discharge gas is an argon, during the mixture of neon and mercury gas, the color CRT fluorescent material is used as light emission purpose.Mercury gas produces the ultraviolet light of the big wavelength with 254nm.Otherwise, be neon at discharge gas, during the xenon-133 gas mixture, the low-voltage fluorescence material as the plasma scope fluorescent material is used to light emission purpose, and mist produces the ultraviolet light that has than the 157nm of small wavelength.
As mentioned above, flat-panel monitor of the present invention can use simple screen impression method to make, and this method provides the large-screen structure with cheap cost.Moreover, be used for field emission owing to will have the graphite material of self-healing characteristic, so this display unit is very long useful life.
In addition; because flat-panel monitor of the present invention uses a kind of discharge gas; and the graphite-based negative electrode directly is used as electron emission source; so no longer need in plasma scope, be provided for the independent layer (for example MgO layer) that guard electrode is not subjected to the ion injection of discharge gas, thereby reduce the compartment gap greatly.
Though reference example is described in detail the present invention, those skilled in the art still can make various modifications and replacement to the present invention under the situation of the claim scope that does not break away from spirit of the present invention and proposed.
Claims (7)
1. plate shaped display comprises:
First substrate;
A plurality ofly be arranged on first suprabasil first conducting shell by a predetermined pattern;
A plurality of field emission layers that are formed on first conducting shell;
Dielectric layer on a plurality of remainders that are formed between the first substrate adjacent conductive layer;
Second substrate, a preset distance is separated in it and first substrate, and first and second basis set are synthesized a vacuum chamber;
A plurality ofly be arranged on second suprabasil second conducting shell by a predetermined pattern;
A plurality of light-emitting layers that are formed on second conducting shell;
Second dielectric layer on a plurality of remainders that are formed between the adjacent light-emitting layer of second substrate; And
A kind of discharge gas is injected in the vacuum chamber.
2. flat-panel monitor as claimed in claim 1, wherein the field emission layer constitutes with graphite.
3. flat-panel monitor as claimed in claim 1, wherein the field emission layer is made of diamond.
4. flat-panel monitor as claimed in claim 1, wherein the field emission layer is made of similar adamantine carbon structure.
5. flat-panel monitor as claimed in claim 1, wherein first and second conducting shells constitute so that arrangement is linear in length and breadth.
6. flat-panel monitor as claimed in claim 1, wherein said discharge gas are the mixtures of argon, neon and mercury gas.
7. flat-panel monitor as claimed in claim 1, wherein said discharge gas are the mixtures of neon and xenon-133 gas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR72106/97 | 1997-12-22 | ||
| KR1019970072106A KR100258714B1 (en) | 1997-12-22 | 1997-12-22 | Flat panel display having field emission cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1221201A true CN1221201A (en) | 1999-06-30 |
Family
ID=19528217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98125781A Pending CN1221201A (en) | 1997-12-22 | 1998-12-22 | Flat panel display |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH11250841A (en) |
| KR (1) | KR100258714B1 (en) |
| CN (1) | CN1221201A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755887B (en) * | 2004-08-19 | 2010-05-05 | 佳能株式会社 | Light-emitting substrate, image display apparatus, and information display and reproduction apparatus using image display apparatus |
| CN105742333A (en) * | 2016-04-20 | 2016-07-06 | 京东方科技集团股份有限公司 | Display panel motherboard, fabrication method of display panel and display device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006004954A (en) * | 2005-09-12 | 2006-01-05 | Matsushita Electric Works Ltd | Light emitting device with electron emitter |
| KR100718111B1 (en) * | 2005-10-11 | 2007-05-14 | 삼성에스디아이 주식회사 | Display device |
| KR100708727B1 (en) * | 2005-10-31 | 2007-04-18 | 삼성에스디아이 주식회사 | Display device |
| KR100659104B1 (en) * | 2005-10-31 | 2006-12-19 | 삼성에스디아이 주식회사 | Display device |
| KR100751348B1 (en) * | 2005-11-03 | 2007-08-22 | 삼성에스디아이 주식회사 | Display device |
| KR100719580B1 (en) * | 2005-11-22 | 2007-05-17 | 삼성에스디아이 주식회사 | Flat panel display device |
| KR100730168B1 (en) * | 2005-11-22 | 2007-06-19 | 삼성에스디아이 주식회사 | Display device and a method for preparing the same |
| JP5129674B2 (en) * | 2008-07-09 | 2013-01-30 | パナソニック株式会社 | Light emitting device |
| KR20220136547A (en) | 2021-03-30 | 2022-10-11 | 삼성디스플레이 주식회사 | Display device |
-
1997
- 1997-12-22 KR KR1019970072106A patent/KR100258714B1/en not_active IP Right Cessation
-
1998
- 1998-12-18 JP JP10359854A patent/JPH11250841A/en active Pending
- 1998-12-22 CN CN98125781A patent/CN1221201A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755887B (en) * | 2004-08-19 | 2010-05-05 | 佳能株式会社 | Light-emitting substrate, image display apparatus, and information display and reproduction apparatus using image display apparatus |
| CN105742333A (en) * | 2016-04-20 | 2016-07-06 | 京东方科技集团股份有限公司 | Display panel motherboard, fabrication method of display panel and display device |
| WO2017181950A1 (en) * | 2016-04-20 | 2017-10-26 | 京东方科技集团股份有限公司 | Motherboard for display panel, method for manufacturing display panel, and display device |
| US10647090B2 (en) | 2016-04-20 | 2020-05-12 | Boe Technology Group Co., Ltd. | Display panel motherboard, method of manufacturing display panel, and display apparatus |
| CN105742333B (en) * | 2016-04-20 | 2021-04-30 | 京东方科技集团股份有限公司 | Display panel mother board, display panel manufacturing method and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990052610A (en) | 1999-07-15 |
| JPH11250841A (en) | 1999-09-17 |
| KR100258714B1 (en) | 2000-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |