CN1328750C - Field emission display possessing sealing arrangement - Google Patents
Field emission display possessing sealing arrangement Download PDFInfo
- Publication number
- CN1328750C CN1328750C CNB02151934XA CN02151934A CN1328750C CN 1328750 C CN1328750 C CN 1328750C CN B02151934X A CNB02151934X A CN B02151934XA CN 02151934 A CN02151934 A CN 02151934A CN 1328750 C CN1328750 C CN 1328750C
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- CN
- China
- Prior art keywords
- sealing device
- sidewall
- teleoseal
- field emission
- emission display
- 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.)
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Abstract
The present invention discloses a field emitting display with a sealing device, which solves the problem that the heat expanding coefficients of the components of a sealing device are different, and thus, the service life and the performance of a field emitting display are reduced. The field emitting display with a sealing device of the present invention comprises a cathode board, a buffering layer in contact with the cathode board, an electron emitting end formed on the buffering layer, an anode board coated by a fluorescent layer and opposite to the cathode board, and a sealing device, wherein the sealing device defines a sealed inner space, and the cathode board, the buffering layer, the electron emitting end and the anode board are accommodated in the inner space. The sealing device comprises a front panel, a rear panel and a side wall which is fixed in the inner space formed between the front panel and the rear panel. The front panel and the rear panel are made of glass material, and the side wall is made of the Fe-Ni-Co alloy of which the heat expanding coefficient is identical to that of the glass material.
Description
[technical field]
The invention relates to a kind of Field Emission Display, especially about a kind of sealing device of Field Emission Display.
[background technology]
Advantage fast developments such as the cathode-ray tube display that flat-panel screens is more traditional is in light weight because of having, little power consumption.The cold-cathode field emission display is a kind of of flat-panel screens.
Field Emission Display comprises front panel that forms display screen and the rear board with electron transmitting terminal.Field Emission Display adopts electron transmitting terminal emitting electrons bump fluorescent display screen to make it luminous and produce visual pattern.Rear board includes the circuit of the electronics emission that is used to control electron transmitting terminal.Electron transmitting terminal and this front panel be from forming the gap, for obtaining stable display effect, electron transmitting terminal need vacuum pressure less than the vacuum environment of 10-6 holder under emitting electrons.So Field Emission Display needs good vacuum seal to guarantee its inner vacuum environment.
For obtaining better vacuum environment, getter can be set in Field Emission Display to absorb residual gas.Please refer to Fig. 1, United States Patent (USP) the 5th, 688, No. 708 (day for announcing is on November 18th, 1997) discloses a kind of Field Emission Display 100, and it comprises: be covered with fluorescence coating 104 positive plate 102, have the minus plate 106 of a plurality of electron transmitting terminals 108 and be placed in minus plate 106 and positive plate 102 between sidewall 112.Adopt glass material sealant (not indicating) that sidewall 112 is fixed on minus plate 106 and the positive plate 102 to form sealing area.100 nearly steps of Field Emission Display comprise a plurality of host cavities that communicate with sealing area 118, and first, second getter 120,122 is contained in respectively in the different host cavity 118.First, second getter 120,122 can be absorbed the interior residual gas of sealing area to improve vacuum environment.Yet a plurality of host cavities 118 of Field Emission Display 100 tools make its volume bigger, and make it be installed to generation inconvenience in the system because of host cavity 118 outwards protrudes.In addition, thermal coefficient of expansion difference between glass material sealant, minus plate 106, positive plate 102 and the sidewall 112, long-term use meeting reduces by 100 useful lifes of Field Emission Display and reliability because of the variation of external temperature environment causes seal failure between minus plate 106, positive plate 102 and the sidewall 112.
[summary of the invention]
The object of the invention is to provide a kind of tool excellent sealing, reliability and the Field Emission Display of the tool sealing device in long useful life.
Another object of the present invention is to provide the sealing device of the Field Emission Display of a kind of tool excellent sealing, reliability.
For realizing the object of the invention, the Field Emission Display of tool sealing device of the present invention comprises: minus plate, the resilient coating that leans with minus plate, be formed at the electron transmitting terminal on the resilient coating, relative with this minus plate and be covered with the positive plate and the sealing device of fluorescence coating, the sealing device defines the inner space of a sealing, and minus plate, resilient coating, electron transmitting terminal and positive plate are contained in this inner space, the sealing device comprises front panel, rear board and sidewall, this sidewall is fixed in and forms this inner space between this front panel and the rear board, this front panel and rear board are made by glass material, and this sidewall is made by the teleoseal identical with the glass material thermal coefficient of expansion.The sealing device also comprises the inwall that depends on this sidewall and be arranged at this inner space, and this inwall is made by chromium-doped teleoseal.
Compared to prior art, the present invention has following advantage: because the front panel and the rear board of the sealing device of the Field Emission Display of tool sealing device of the present invention are made by glass material, and the employing teleoseal identical with the glass material thermal coefficient of expansion be as the sidewall of sealing device, and make it have good sealing property, reliability and long useful life.
[description of drawings]
Fig. 1 is the profile of prior art Field Emission Display.
Fig. 2 is the profile of the Field Emission Display of tool sealing device of the present invention.
[embodiment]
Please refer to shown in Figure 2, the Field Emission Display 1 of tool sealing device of the present invention comprise a positive plate 30 that is covered with fluorescence coating 40, one with fluorescence coating 40 from resilient coating 60, a plurality of be formed at electron transmitting terminal 50 on the resilient coating 60, one and resilient coating 60 against minus plate 70, one silicon membrane layers 80 and a sealing device 5.Sealing device 5 defines an inner space (not indicating), and positive plate 30, fluorescence coating 40, resilient coating 60, electron transmitting terminal 50, minus plate 70 and silicon membrane layer 80 are arranged in this inner space.
Be the mechanical strength of enhancing sealing device 5 and the vacuum environment of inner space, sealing device 5 further comprises the inwall of being made by gettering material 92, inwall 92 is housed in the inner space and in abutting connection with sidewall 90, can be sealing device 5 better mechanical strength and stability are provided.Gettering material is chromium-doped teleoseal Cr
xKovar
1-x, wherein x is in 0.1 to 0.5 scope.Chromium can be absorbed the steam, oxygen, carbon dioxide and other gas that residue in the sealing device 5 to improve the vacuum degree of sealing device 5 inner spaces.
During sealing device 5 sealings, inwall 92 depends on sidewall 90, and sidewall 90 is arranged between front panel 10 and the rear board 20, and sidewall 90 can adopt the glass-sealing agent sealing to form the inner space of sealing with front panel 10, rear board 20 contact zones.Sidewall 90 fusing points that teleoseal is made be higher than glass material make before the fusing point of panel 10 and rear board 20, also can make the inner space that contact area softens and then cementation forms sealing mutually of front panel 10, rear board 20 and sidewall 90 to front panel 10, rear board 20 and the heating of sidewall 90 contact areas.Inwall 92 can be absorbed the residual gas of inner space with gas clean-up, and inwall 92 also strengthens the intensity of sealing device 5.
Claims (10)
1. the Field Emission Display of a tool sealing device, it comprises: minus plate, the resilient coating that leans with minus plate, be formed at the electron transmitting terminal on the resilient coating, relative with this minus plate and be covered with the positive plate and the sealing device of fluorescence coating, the sealing device defines the inner space of a sealing, and minus plate, resilient coating, electron transmitting terminal and positive plate are contained in this inner space, the sealing device includes sidewall, it is characterized in that: the sealing device comprises front panel of being made by glass material and the rear board of being made by glass material, this sidewall is fixed in and forms this inner space between this front panel and this rear board, and this sidewall is to be made by the teleoseal identical with the glass material thermal coefficient of expansion, the sealing device also comprises the inwall that depends on this sidewall and be arranged at this inner space, and this inwall is made by chromium-doped teleoseal.
2. the Field Emission Display of tool sealing device according to claim 1 is characterized in that: this teleoseal iron content 54%, nickel 29% and cobalt 17%.
3. the Field Emission Display of tool sealing device according to claim 2 is characterized in that: this chromium-doped teleoseal consists of Cr
xKovar
1-x, wherein x is in 0.1 to 0.5 scope.
4. the Field Emission Display of tool sealing device according to claim 2 is characterized in that: the impure carbon of this teleoseal is less than or equal to 0.1%.
5. the Field Emission Display of tool sealing device according to claim 1 is characterized in that: the contacted zone of this front panel, rear board and sidewall is by the mutual cementation of heating.
6. the Field Emission Display of tool sealing device according to claim 1 is characterized in that: the contacted zone of this front panel, rear board and sidewall is sealed by glass-sealing agent.
7. sealing device that is used for Field Emission Display, it comprises: sidewall, it is characterized in that: the sealing device further comprises front panel and the rear board of being made by glass material, this sidewall is fixed in the inner space that forms sealing between front panel and the rear board, and this sidewall is made by the teleoseal identical with this glass material thermal coefficient of expansion, the sealing device also comprises the inwall that depends on this sidewall and be arranged at this inner space, and this inwall is made by chromium-doped teleoseal.
8. sealing device according to claim 7 is characterized in that: this teleoseal iron content 54%, nickel 29% and cobalt 17%.
9. sealing device according to claim 8 is characterized in that: this chromium-doped teleoseal consists of Cr
xKovar
1-x, wherein x is in 0.1 to 0.5 scope.
10. sealing device according to claim 9 is characterized in that: the impure carbon of this teleoseal is less than or equal to 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02151934XA CN1328750C (en) | 2002-11-05 | 2002-11-05 | Field emission display possessing sealing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02151934XA CN1328750C (en) | 2002-11-05 | 2002-11-05 | Field emission display possessing sealing arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1499567A CN1499567A (en) | 2004-05-26 |
| CN1328750C true CN1328750C (en) | 2007-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02151934XA Expired - Fee Related CN1328750C (en) | 2002-11-05 | 2002-11-05 | Field emission display possessing sealing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1328750C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561633C (en) * | 2004-09-10 | 2009-11-18 | 鸿富锦精密工业（深圳）有限公司 | The field emission light-emitting lighting source |
| CN100530518C (en) * | 2004-12-25 | 2009-08-19 | 鸿富锦精密工业（深圳）有限公司 | Field emission illuminating light source |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515905A (en) * | 1978-07-12 | 1980-02-04 | Toshiba Corp | Glass joining method |
| US5688708A (en) * | 1996-06-24 | 1997-11-18 | Motorola | Method of making an ultra-high vacuum field emission display |
| CN1177198A (en) * | 1996-08-02 | 1998-03-25 | 摩托罗拉公司 | Field emission display and method of making same |
| US5789856A (en) * | 1994-01-28 | 1998-08-04 | Futaba Denshi Kogyo K.K. | Fluorescent display device with blue filter |
| JPH10208676A (en) * | 1997-01-27 | 1998-08-07 | Toppan Printing Co Ltd | Field emission type display and manufacture thereof |
| CN1216147A (en) * | 1997-03-05 | 1999-05-05 | 摩托罗拉公司 | Field emission display with mechanical support/getter assembly and method for mfg same |
-
2002
- 2002-11-05 CN CNB02151934XA patent/CN1328750C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515905A (en) * | 1978-07-12 | 1980-02-04 | Toshiba Corp | Glass joining method |
| US5789856A (en) * | 1994-01-28 | 1998-08-04 | Futaba Denshi Kogyo K.K. | Fluorescent display device with blue filter |
| US5688708A (en) * | 1996-06-24 | 1997-11-18 | Motorola | Method of making an ultra-high vacuum field emission display |
| CN1177198A (en) * | 1996-08-02 | 1998-03-25 | 摩托罗拉公司 | Field emission display and method of making same |
| JPH10208676A (en) * | 1997-01-27 | 1998-08-07 | Toppan Printing Co Ltd | Field emission type display and manufacture thereof |
| CN1216147A (en) * | 1997-03-05 | 1999-05-05 | 摩托罗拉公司 | Field emission display with mechanical support/getter assembly and method for mfg same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1499567A (en) | 2004-05-26 |
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Granted publication date: 20070725 Termination date: 20171105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |