CN1187782C - Surface discharge type AC gas discharge color display screen - Google Patents
Surface discharge type AC gas discharge color display screen Download PDFInfo
- Publication number
- CN1187782C CN1187782C CNB021146438A CN02114643A CN1187782C CN 1187782 C CN1187782 C CN 1187782C CN B021146438 A CNB021146438 A CN B021146438A CN 02114643 A CN02114643 A CN 02114643A CN 1187782 C CN1187782 C CN 1187782C
- Authority
- CN
- China
- Prior art keywords
- display screen
- control electrode
- electrode
- gas discharge
- coated
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Abstract
The present invention discloses a surface discharge type AC gas discharge color display screen, which comprises a first medium base plate with a display electrode, and a second medium base plate with a control electrode, wherein a medium layer is covered on the display electrode; a fluorescent powder coating is coated on the control electrode. Conductive material particles with the concentration proportion of 5% to 20% are mixed in the fluorescent powder coating for eliminating accumulated charges on the surface of the fluorescent powder coating; consequently, an inner electric field between the display electrode and the control electrode is reduced. Consequently, the control reliability is enhanced. The medium layer is coated on the control electrode for further reinforcing the effect. Aluminum, metal boride, noble metal, oxide, etc. are adopted as conductive materials because kinds of metal ensure that the fluorescent powder coating has sufficiently high conductivity after the technical process of making the AC gas discharge color display screen.
Description
Technical field
The invention belongs to the gas discharge technical field, be used in the device that AC gas discharge display screen (PDP) is gone up the exploitation display message.
Background technology
According to the new data of looking into that the applicant carried out, the prior art data relevant or approaching with present patent application comprises following several pieces:
1. known a kind of AC gas discharge display screen (PDP) comprising: have two medium substrates of electrode, be coated with dielectric layer on the electrode.Form fluorescent coating on a medium substrate, fluorescent material is partly imbedded (British patent No.1380931 H1D 1975) in the medium.The shortcoming of this interchange gas panel is low because of controlling voltage high control reliability.
2. known a kind of chromatic alternating-current gas panel (PDP) comprising: have two medium substrates of electrode, be coated with dielectric layer on the electrode.Fluorescent material (French Patent (FRP) patent application No.2212632 HOIJ 17,/48 1974) is arranged on the dielectric layer of a substrate therein.The shortcoming of this AC gas discharge display screen is low because of controlling voltage high control reliability.
3. comprise with the most approaching display screen of the structure of surface discharge type AC gas discharge color display screen proposed by the invention: first medium substrate has the show electrode of blanket dielectric layer on its inner surface; Second medium substrate has control electrode on its inner surface, and fluorescent coating (European patent patent application No.0554172 HOI J 17,/49 1993-prototype) is arranged on control electrode.The shortcoming of this AC gas discharge display screen is a control voltage height.
Summary of the invention
Defective or deficiency at above-mentioned prior art existence, task of the present invention is, the amplitude of " inside " electric field that produces between show electrode and control electrode when reducing to discharge is made the high surface discharge type AC gas discharge color display screen of control reliability.
To achieve these goals, the technical solution used in the present invention is to comprise in the structure of known surface discharge type AC gas discharge color display screen: have first medium substrate of show electrode, be coated with dielectric layer on the show electrode; Second medium substrate that has control electrode is coated with dielectric layer and is coated with fluorescent coating on the control electrode, lay the medium barrier of separating mapping unit between control electrode; It is characterized in that putting between dielectric layer on the described control electrode and the fluorescent coating has conductive layer; Mix the electric conducting material particle in the fluorescent coating, its concentration ratio is 5%-20%.
Electric conducting material particle in the fluorescent coating is boride, the noble metal of aluminium, metal, a kind of or combination of oxide.
In the fluorescent coating of AC gas discharge display screen, mix the particle of electric conducting material of boride, noble metal, the oxide of the above-mentioned use aluminium of giving determined number, metal, suit as electric conducting material, because after the technological process of making AC gas discharge display screen, these metals can guarantee that fluorescent coating has sufficiently high conductivity.Owing to the electric charge of having eliminated the fluorescent coating surface accumulates the internal electric field that has reduced between show electrode and the control electrode, thereby improved the reliability of control.
On control electrode, can obtain the reliability of higher control AC gas discharge display screen during the coating media layer.On dielectric layer, settle conductive coating can further strengthen above-mentioned effect.
Description of drawings
Fig. 1 and Fig. 2 are the embodiment figure of surface discharge type AC gas discharge color display screen structure of the present invention.
Embodiment
For a more clear understanding of the present invention, the present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1 and Fig. 2, surface discharge type AC gas discharge color display screen of the present invention.Comprise first medium substrate 1, be furnished with show electrode 2 within it on the surface, the show electrode surface coverage has dielectric layer 3; Second medium substrate 4 has control electrode 5 on this substrate, be coated with dielectric layer 6 and fluorescent material 7 on the control electrode, separates the medium barrier 8 of mapping unit.
Dielectric coated and fluorescent coating can be separated (Fig. 2) by conductive layer 9.
The electric conducting material particle that mixes is boride, the noble metal of aluminium, metal, a kind of or combination of oxide.
The working method of surface discharge type AC gas discharge color display screen of the present invention is as follows: add the voltage of keeping that does not change the display unit state on all show electrodes.In order selectively to light display unit, must on control electrode, add part and write voltage, another part is added on the selected show electrode.Place, crosspoint at selected show electrode and control electrode produces discharge, and is kept potential pulse by demonstration subsequently and support.In order to change signal, must on control electrode and show electrode, add erasing pulse and carry out writing process again.
The adding ingredient of mixing the electric conducting material of 5%-20% in the fluorescent coating of gas panel makes and can reduce " inner " electric field value, this electric field is in the display screen course of work, produce when between show electrode and control electrode, lighting discharge, therefore also just improved the reliability of control flow.
The applicant under study for action, in ratio when experiment that adds electric conducting material in to fluorescent coating, found, if the ratio of electric conducting material particle is less than at 5% o'clock in the fluorescent coating, then can not observe reducing of counteractive " inside " electric field.Particle in the fluorescent coating can reduce the brightness of display screen more than 20% o'clock.Only the scope at 5%-20% is fit to.
Because of " inside " electric field value reduce reliability is further improved be when formation dielectric layer on control electrode or obtains when having the dielectric layer of conductive coating.Use aluminium, the boride of metal, noble metal, oxide to be incorporated in the fluorescent material as the particle of electric conducting material, the conductance of above-mentioned these materials is heat-treated Shi Buhui and is changed in the process of making display screen.
The inventor has provided following specific embodiment.
Embodiment 1: exchange display screen and be made up of two medium substrates.Form the show electrode that width is 80 μ m-90 μ m by gold on first medium substrate, the distance between show electrode is 0.15mm.Form dielectric layer and the magnesian protective layer that thickness is 30 μ m-40 μ m by low-melting glass on the show electrode.Forming width by silver on the substrate of control electrode is that 120 μ m-140 μ m, pitch are the control electrode of 0.35mm.Being coated with dielectric layer on the control electrode and being mixed with concentration is 16% In
2O
3The fluorescent coating of conducting particles.
Mapping unit is separated by the barrier that is produced on the control electrode substrate.Be filled with the mist that pressure is the Ne+5%Xe of p=450Torr in the display screen.
Be mixed with the low 20V of control voltage that does not mix the display screen of conducting particles in the control voltage ratio fluorescent coating of display screen of conducting particles in the fluorescent coating.
In fluorescent coating, be mixed with in the display screen of conducting particles whole memory scope internal information to write and wipe all be reliable.This makes can use the lower power supply of stability in circuit, can reduce its cost.
Embodiment 2: different is for present embodiment and embodiment 1, and being coated with dielectric layer on the control electrode and being mixed with concentration is 20% In
2O
3The fluorescent coating of conducting particles.
Embodiment 3: different is for present embodiment and embodiment 1, and being coated with dielectric layer on the control electrode and being mixed with concentration is 5% In
2O
3The fluorescent coating of conducting particles.
Similar above embodiment can list many, as mentioned above, is coated with dielectric layer and is mixed with the In that concentration is the 5%-20% scope on control electrode
2O
3All be fit to.
Therefore, technical scheme proposed by the invention makes and can make the high surface discharge type AC gas discharge display screen of control reliability.
According to the retrieval of patent that the applicant carries out and scientific and technological information data, and the investigation of the similar product of the invention that contains Yu applied for report shown, do not find to have with feature class of the present invention like like product.The applicant has carried out the additional retrieval to known technical scheme, do not find such technical solution, that is: the control reliability that improves gas panel is the particle by the electric conducting material that mixes 5%-20% in fluorescent coating, equally also is by adopting additional dielectric layer and have technical scheme the dielectric layer of the conductive covering layer that forms as boride, noble metal, oxide by aluminium, metal on control electrode.
Claims (2)
1. a surface discharge type AC gas discharge color display screen comprises: have first medium substrate of show electrode, be coated with dielectric layer on the show electrode; Second medium substrate that has control electrode, lay the medium barrier of separating mapping unit between control electrode, be coated with dielectric layer on the control electrode and be coated with fluorescent coating, it is characterized in that, putting between dielectric layer on the described control electrode and the fluorescent coating has conductive layer; Be mixed with the electric conducting material particle in fluorescent coating, its concentration ratio is 5%-20%.
2. according to the described surface discharge type AC gas discharge color display screen of claim 1, it is characterized in that the electric conducting material particle in the described fluorescent coating is boride, the noble metal of aluminium, metal, a kind of or combination of oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021146438A CN1187782C (en) | 2002-06-24 | 2002-06-24 | Surface discharge type AC gas discharge color display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021146438A CN1187782C (en) | 2002-06-24 | 2002-06-24 | Surface discharge type AC gas discharge color display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1387225A CN1387225A (en) | 2002-12-25 |
| CN1187782C true CN1187782C (en) | 2005-02-02 |
Family
ID=4743213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021146438A Expired - Fee Related CN1187782C (en) | 2002-06-24 | 2002-06-24 | Surface discharge type AC gas discharge color display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1187782C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464391C (en) * | 2004-12-13 | 2009-02-25 | 中国科学院长春光学精密机械与物理研究所 | Method for eliminating field emission display fluorescent screen charge accumulation |
| KR20080080848A (en) * | 2007-03-02 | 2008-09-05 | 엘지전자 주식회사 | Plasma display panel |
-
2002
- 2002-06-24 CN CNB021146438A patent/CN1187782C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1387225A (en) | 2002-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1303633C (en) | AC plasma display screen | |
| CN1299313C (en) | AC plasma display with dual discharge sites and contrast enhancement bars | |
| CN1269571A (en) | Plasma displaying device and method for making dielectric layer having concentrated electric field region | |
| CN1187782C (en) | Surface discharge type AC gas discharge color display screen | |
| CN1574165A (en) | Ac type plasma display panel and method of forming address electrodes thereof | |
| CN1179393C (en) | Panel display | |
| CN1612281A (en) | Plasma display device and method for driving same | |
| EP0413345B1 (en) | Gas discharge panel | |
| CN1979727B (en) | Plasma display panel provided with an improved electrode | |
| CN1172345C (en) | AC gas discharge display screen | |
| JP3907528B2 (en) | Plasma display device | |
| CN1172348C (en) | AC gas discharge display screen and its control method | |
| CN1226766C (en) | AC gas discharge display screen and its control method | |
| CN1180452C (en) | AC gas discharge display screen and its control method | |
| CN1302505C (en) | Structure for addressing electrodes in plasma panel display | |
| CN1172347C (en) | AC gas discharge display screen | |
| CN1324631C (en) | Electrode for acceleration of writing speed of plasma planar displaying device | |
| JP2705997B2 (en) | Gas discharge panel | |
| CN1957387A (en) | Plasma display device | |
| CN1172346C (en) | AC gas discharge display screen | |
| CN1702808A (en) | Plasma display panel | |
| CN100485852C (en) | Electrode pair structure of plasma display | |
| CN1310274C (en) | Transparent electrode structure of plasma planar displaying device | |
| CN1185677C (en) | Frout panel of plasma display unit | |
| CN100350544C (en) | AC plasma displaying devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN SHIJI SHUANGHONG DISPLAY DEVICES CO., LTD Free format text: FORMER OWNER: IRICO GROUP ELECTRONICS CO., LTD. Effective date: 20070629 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070629 Address after: 621000, Zhou Yonghong, No. 35 Tung Hing East Road, hi tech Zone, Sichuan, Mianyang Patentee after: Sichuan Sterope Orion Display Co., Ltd. Address before: 712021 No. 1 Rainbow Road, Shaanxi, Xianyang Patentee before: IRICO Group Electronics Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050202 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |