CN1172347C - AC gas discharge display screen - Google Patents
AC gas discharge display screen Download PDFInfo
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- CN1172347C CN1172347C CNB02114642XA CN02114642A CN1172347C CN 1172347 C CN1172347 C CN 1172347C CN B02114642X A CNB02114642X A CN B02114642XA CN 02114642 A CN02114642 A CN 02114642A CN 1172347 C CN1172347 C CN 1172347C
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- gas discharge
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Abstract
The present invention discloses an AC gas discharge display screen which comprises a first medium base plate and a second medium base plate, wherein display electrodes whose surfaces are covered by media are arranged on the inner surface of the first medium base plate; control electrodes orthogonal with the display electrodes are arranged on the inner surface of the second medium base plate, and form mapping units with the display electrodes; each mapping unit at least has four display electrodes; a medium barrier wall is positioned between the control electrodes on at least one medium base plate. The present invention is characterized in that coatings for enhancing contrast degree are introduced in the mapping units, wherein the coatings are coated on the surface of the first medium base plate, and are positioned between two adjacent display electrodes of forming predischarge and between adjacent mapping units under the display electrodes. The present invention can make the AC gas discharge display screen with high quality of displaying images, and enhances the contrast degree of the images displayed on the screen.
Description
One, technical field
The invention belongs to the gas discharge technical field, be specifically related to a kind of gas panel, particularly can be used for developing the AC gas discharge display screen (PDP) of display message device.
Two, background technology
According to the literature retrieval 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) has two medium substrates, two groups of orthogonal electrode systems that covered by dielectric layer are arranged on the medium substrate wherein, the medium template is arranged, luminous (the British patent No 1.396.816 H1D 1975) of the aperture restriction discharge on the template on the medium.Control voltage height and brightness are low to be the shortcoming of this display screen.This causes owing to template has shielded discharge.
2. known a kind of AC gas discharge display screen (PDP) has the medium substrate of laying electrode on two inner surfaces, and electrode surface is coated with dielectric layer.On the medium substrate therein, the medium on the electrode is black (French Patent (FRP) patent application No 2.169911H01J 17,/00 1973) because of the mixture that has mixed iron oxide and cobalt oxide.The shortcoming of this structure is that brightness is low.This has shielded luminous relevant with black dielectric passivation.
3. known a kind of AC gas discharge display screen (PDP) has two medium substrates, and the paired show electrode by the dielectric layer covering is arranged on the medium substrate wherein; On another piece medium substrate the control electrode orthogonal thereto with show electrode arranged, have between the control electrode to scribble the medium barrier (European patent patent application No 0554172 H01J 17,/49 1993) that improves the contrast coating on the upper surface.Be coated in the coating of the raising contrast on the medium barrier upper surface in this structure, improve impression, thereby improve the contrast of PDP image.But the contrast of this structure is also not high enough.Because can observe background luminescence in the device along electrode direction.When on the medium barrier, fluorescent material being arranged, the impression of image is reduced contrast widely along the infringement of the background luminescence of control electrode direction.
4. the AC gas discharge display screen the most approaching with structure proposed by the invention (PDP) is Russ P (No 2094895 H01J 17/49 1997-prototype), comprises: first medium substrate that the show electrode of blanket dielectric layer is arranged on the surface; Second medium substrate with the orthogonal thereto control electrode of show electrode arranged on the inner surface, and show electrode and control electrode constitute mapping unit, and the show electrode in each mapping unit is no less than 4, on a medium substrate medium barrier is arranged at least.
Three, summary of the invention
According to defective or the deficiency that above-mentioned prior art exists, task of the present invention is the reflection coefficient by the construction unit that reduces screen, makes the AC gas discharge display screen (PDP) of high-contrast image.
In order to realize above-mentioned task, the technical solution used in the present invention reaches by following measure.AC gas discharge display screen (PDP) structure comprises: first medium substrate that the show electrode of blanket dielectric layer is arranged on the inner surface; Second medium substrate with the orthogonal thereto control electrode of show electrode arranged on the inner surface, and show electrode and control electrode constitute mapping unit, and the show electrode in each mapping unit is no less than 4, on a medium substrate medium barrier is arranged at least.Be characterized in:
1. introduce the seal coat of the raising contrast be mixed with the low-melting glass slurry that dyes black adding ingredient in mapping unit, this coating is coated on the inner surface of two first medium substrates between the adjacent show electrode that is used to form pre-arcing.In the mapping unit on first medium substrate inner surface, apply the coating that improves contrast between two adjacent show electrodes that are used to form pre-arcing, can reduce the reflection coefficient of the construction unit of screen, thereby reduce the contrast of background luminescence and raising image greatly.
2. the coating that will improve the material of contrast is replenished and to be coated under two show electrodes that are used to form pre-arcing or to be coated under all show electrodes, can further improve contrast.
3. applying the coating that improves the contrast material between the show electrode at the edge of adjacent mapping unit can make contrast higher.
Four, description of drawings
Fig. 1 is the part figure of a kind of scheme of AC gas discharge display screen structure of the present invention, (a) is front view, (b) is left view;
Fig. 2 is a kind of scheme of AC gas discharge display screen structure of the present invention;
Fig. 3 is a kind of scheme of AC gas discharge display screen structure of the present invention;
Fig. 4 is a kind of scheme of AC gas discharge display screen structure of the present invention;
Fig. 5 is a kind of scheme of AC gas discharge display screen structure of the present invention.
Five, embodiment
In order more to be expressly understood the present invention, the present invention is described in further detail below in conjunction with drawings and Examples.
That shown in Figure 1 is the part figure of a kind of scheme of AC gas discharge display screen structure of the present invention, and wherein, the coating that improves the contrast material is applied between the show electrode of two vicinities that are used to form pre-arcing.
Shown in Figure 2 is a kind of scheme of AC gas discharge display screen structure of the present invention.Wherein, the coating that improves the contrast material be applied between the show electrode of two vicinities that are used to form pre-arcing and below.
A kind of scheme of the AC gas discharge display screen structure that the present invention that shown in Figure 3 is proposes.Wherein, the coating that improves the contrast material is coated between the show electrode of two vicinities that are used to form pre-arcing and under whole show electrodes of mapping unit.
Shown in Figure 4 is a kind of scheme of AC gas discharge display screen structure of the present invention.Wherein, the coating that improves the contrast material be coated between the show electrode of two vicinities that are used to form pre-arcing, on the medium substrate surface under whole show electrodes of mapping unit and between two adjacent mapping units between the contiguous edge show electrode.
Shown in Figure 5 is a kind of scheme of AC gas discharge display screen structure of the present invention.Wherein, the coating that improves the contrast material be coated between the show electrode of two vicinities that are used to form pre-arcing, on the dielectric passivation of the show electrode under whole show electrodes of mapping unit and between two adjacent mapping units between the contiguous edge show electrode.
According to Fig. 1,2,3,4,5 AC gas discharge display screen structure, include first medium substrate 1, show electrode 2 is arranged on it, dielectric passivation 3 is arranged on the show electrode and improve the coating 4 of contrast material; Second medium substrate 5 has the control electrode 6 orthogonal thereto with show electrode on it, be coated with dielectric layer 7 and fluorescent material 8 on the control electrode; Medium barrier 9 limits mapping unit 10, and four show electrodes are arranged in each mapping unit.In order to reduce background luminescence, between two adjacent show electrodes 2 that are used to form pre-arcing, scribble the coating that improves the contrast material.
The seal coat that is mixed with the raising contrast of the low-melting glass slurry that dyes black adding ingredient also can be replenished (Fig. 3) below all show electrodes that are coated in (Fig. 2) and mapping unit below the show electrode that forms pre-arcing.Equally, also all can be coated with the coating that improves the contrast material on the medium substrate surface (Fig. 4) between adjacent mapping unit and on the dielectric passivation (Fig. 5) at show electrode.
The working method of AC gas discharge display screen of the present invention is as follows: during standby condition, in order to excite pre-arcing, full frame writing with full frame pulse of wiping is added on two show electrodes that contiguous centre scribbles the coating that improves the contrast material.The stray radiation of pre-arcing is reflected by construction unit, shines on the coating that improves contrast and is absorbed, thereby reduced the influence of background luminescence to image definition.During addressed state, add control impuls on the control electrode of the mapping unit that in AC gas discharge display screen, is addressed and the show electrode when being used for standby condition, in the excitation discharge of place, the crosspoint of show electrode that is addressed and control electrode, be added in sequentially subsequently and kept the discharge pulse support on the show electrode.Consequently in the mapping unit that is addressed, excited the gas discharge of display message.The radiation that produces in the procedure for displaying also comprises the radiation of pre-arcing, by the construction unit reflection, the contrast of image is degenerated.Under show electrode and the coating of the raising contrast material of making between mapping unit can reduce the reflection coefficient of AC gas discharge display screen construction unit, this can improve the contrast of image widely, improves the impression to display message.
The inventor has provided the embodiment of following specific implementation.
According to technical scheme of the present invention, form AC gas discharge display screen by two medium substrates.The show electrode of being made by gold is arranged on the upper substrate; electrode is wide to be 70 μ m; each mapping unit includes four show electrodes; distance between contiguous target is 80 μ m; and the distance between the show electrode at middle show electrode and edge is 170 μ m; scribble the cover layer of the raising contrast that is mixed with the low-melting glass slurry that dyes black adding ingredient between the show electrode of two vicinities that are used to excite pre-arcing, electrode is that low-melting glass dielectric layer and the MgO protective layer of 35 μ m covers by thickness.The control electrode of being done by silvery is arranged on the following medium substrate, and electrode is wide to be 120 μ m, and pitch is 0.35mm.Electrode surface is coated with the low-melting glass dielectric layer that thickness is 15 μ m.To have highly be the isolation barrier of 140 μ m to direction in parallel between the control electrode.On the sidewall of control electrode and barrier, scribble three primary colors fluorescent powder.With sealing-in of display screen air-tightness and pressurising is by force P=500Torr, and composition is the mist of Ne+5%Xe.
The contrast that the nothing of making of said method improves the AC gas discharge display screen of contrast material coating is 50: 1, and it is 150: 1 that the contrast of the AC gas discharge display screen that improves the contrast material coating is arranged.
Therefore, adopt the present invention can make the high AC gas discharge display screen of image quality, improved the upward contrast of the image of demonstration of screen.
Interchange gas panel of the present invention, retrieval according to patent that the applicant carries out and scientific and technological information data, and the investigation that the similar product of the invention that contains Yu applied for is reported shows, for gas panel, the applicant does not find have and the similar like product of technical characterictic of the present invention.The applicant has also carried out additional retrieval to known technical scheme, does not find to be used on first medium substrate inner surface the method that applies the coating that improves the contrast material between two adjacent show electrodes that are used to form pre-arcing and to improve the such technical solution of PDP contrast.In addition, do not find yet and be coated under two show electrodes that are used to form pre-arcing or the method that is coated under all show electrodes improves the such technical solution of contrast with the coating that will improve the contrast material.Equally do not find the technical solution that the coating that will improve the contrast material is coated in raising contrast such between the show electrode at edge of adjacent mapping unit yet.
Claims (5)
1. AC gas discharge display screen comprises: first medium substrate is arranged with the show electrode of surface coverage medium on its inner surface; Second medium substrate has the control electrode orthogonal thereto with show electrode on its inner surface, and constitutes mapping unit with show electrode; Have four show electrodes in each mapping unit at least; At least on a medium substrate, between control electrode, be mounted with the medium barrier; It is characterized in that, in mapping unit, introduced and be coated in the first medium substrate surface, between the show electrode of two adjacent formation pre-arcing, be mixed with the seal coat of the raising contrast of the low-melting glass slurry that dyes black adding ingredient.
2. AC gas discharge display screen according to claim 1, it is characterized in that, the described seal coat that is mixed with the raising contrast of the low-melting glass slurry that dyes black adding ingredient be replenish the show electrode that is coated in two adjacent formation pre-arcing below.
3. AC gas discharge display screen according to claim 1 is characterized in that, the described seal coat that is mixed with the raising contrast of the low-melting glass slurry that dyes black adding ingredient is to replenish to be coated in below whole show electrodes.
4. according to claim 1 or 2 or 3 described AC gas discharge display screens, it is characterized in that, the described seal coat that is mixed with the raising contrast of the low-melting glass slurry that dyes black adding ingredient is replenished and is coated on the inner surface of first medium substrate, between the mapping unit.
5. according to claim 1 or 2 or 3 described AC gas discharge display screens, it is characterized in that, the described seal coat that is mixed with the raising contrast of the low-melting glass slurry that dyes black adding ingredient is to replenish to be coated between the mapping unit, on the dielectric passivation of show electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02114642XA CN1172347C (en) | 2002-06-24 | 2002-06-24 | AC gas discharge display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02114642XA CN1172347C (en) | 2002-06-24 | 2002-06-24 | AC gas discharge display screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1387224A CN1387224A (en) | 2002-12-25 |
| CN1172347C true CN1172347C (en) | 2004-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02114642XA Expired - Fee Related CN1172347C (en) | 2002-06-24 | 2002-06-24 | AC gas discharge display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1172347C (en) |
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2002
- 2002-06-24 CN CNB02114642XA patent/CN1172347C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1387224A (en) | 2002-12-25 |
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| 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: IRICO GROUP ELECTRONICS CO., LTD. Free format text: FORMER OWNER: CAIHONG GROUP CO Effective date: 20041119 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041119 Address after: 712021 No. 1 Rainbow Road, Shaanxi, Xianyang Patentee after: IRICO Group Electronics Co., Ltd. Address before: 100085, No. 11, information road, Haidian District, Beijing Patentee before: IRICO Group Corp. |
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| 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 |
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| 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. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041020 Termination date: 20130624 |