CN101369507B - Shadow mask type plasma display board - Google Patents
Shadow mask type plasma display board Download PDFInfo
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- CN101369507B CN101369507B CN2008101561807A CN200810156180A CN101369507B CN 101369507 B CN101369507 B CN 101369507B CN 2008101561807 A CN2008101561807 A CN 2008101561807A CN 200810156180 A CN200810156180 A CN 200810156180A CN 101369507 B CN101369507 B CN 101369507B
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- shadow mask
- face
- plate
- metacoxal plate
- plasma display
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Abstract
The invention relates to a plasma display panel, especially a shadow mask type plasma display panel. The invention comprises a front base plate, a back base plate, a shadow mask, in which, the shadow mask is packaged between the front base plate and the rear base plate and is a conducting plate comprising a face hole array and a bottom hole array, the face hole and the bottom hole belong to an upper surface and a lower surface of the same discharge unit, a fluorescent powder layer is coated on the inner wall of the face hole so that the space corresponding to the face hole in the discharge basic unit is a visible light luminous area, the invention is characterized in that, a layer of diffuse reflection film is prepared on the protecting film surface of the rear base plate for absorbing less deep ultraviolet light, the visible light reflected on the surface of the rear base plate by the bottom hole in the face hole space is reflected in the face hole, a part of the visible light sends to the front base plate for receiving by human eye. The invention realizes the purposes of improving brightness and luminous efficiency.
Description
Technical field
The present invention relates to a kind of plasma display panel, relate in particular to a kind of shadow mask plasma display panel, the shadow mask plasma display panel of specifically a kind of back plate surface preparation reflective coating.
Background technology
The shadow mask plasma display panel that adopts mainly comprises prebasal plate, metacoxal plate and shadow mask at present.Prebasal plate is from glass substrate, is respectively scan electrode, dielectric layer and the protective layer that forms on the dielectric layer surface; Metacoxal plate is respectively the addressing electrode vertical with scan electrode from glass substrate, dielectric layer and the protective layer that forms on dielectric layer; Being clipped in the middle shadow mask of forward and backward substrate is the metal foil web plate that comprises the addressing of mesh battle array that is processed by electric conducting material (for example iron or its alloy).To charge into predetermined working gas after above-mentioned prebasal plate, shadow mask and the metacoxal plate assembling sealing-in, for example various inert gases have promptly formed shadow mask plasma display panel.Shadow mask plasma display panel adopts the operation principle of subtend discharge at present, and its operation principle is as follows: at first, add a high voltage narrow pulse or slope pulsed erase signal between address electrodes of address electrode group and scan electrode, wipe the wall electric charge of discharge accumulation last time; On scan electrode, add a high impulse addressing voltage then and choose this row, on addressing electrode, apply simultaneously the data pulse of this row, the difference of this data pulse voltage amplitude and scanning voltage is higher than the firing voltage between scan electrode and the addressing electrode, control triggers discharge, thereby forms the wall CHARGE DISTRIBUTION corresponding with required display message at this row; After finishing the visual initial discharge of whole screen line by line, between scan electrode group and addressing electrode, apply and keep discharge pulse, to show this frame image.Circulation like this is displayed image frame by frame.For colored shadow mask plasma display panel, the face of shadow mask is a macropore, face placement with prebasal plate, the coated inner wall three primary colors fluorescent powder, the bottom outlet of shadow mask is an aperture, and by groove UNICOM, bottom outlet and metacoxal plate are in the face of placing between aperture, the vacuum-ultraviolet light that gas discharge produces in each discharge cell excites different fluorescent materials to send corresponding three primary colors light.Yet, there are the following problems in the above-mentioned shadow mask plasma display panel: owing to adopt subtend type discharging structure, discharge space concentrates between the electrode of upper and lower base plate, and fluorescent material only is coated in the inner wall surface of shadow mask macropore, make the deep UV (ultraviolet light) loss that produces at the bottom outlet discharge space very big, can't excite the light-emitting phosphor of macropore inwall, make the brightness of shadow mask plasma display panel lower, luminous efficiency is lower.
Summary of the invention
The objective of the invention is to adopt the problem of subtend type discharge generation, invent a kind of shadow mask plasma display panel that improves brightness and luminous efficiency that has, at surface preparation one deck reflective coating of metacoxal plate at existing shadow mask plasma display panel.
Technical scheme of the present invention is:
A kind of shadow mask plasma display panel, comprise prebasal plate, metacoxal plate, shadow mask, wherein shadow mask is encapsulated between prebasal plate, the metacoxal plate, described prebasal plate comprises preceding substrate glass substrate, scan electrode, front substrate medium layer, prebasal plate diaphragm, scan electrode is set in parallel on the preceding substrate glass substrate, front substrate medium layer covers on the scan electrode, and the prebasal plate diaphragm covers on the front substrate medium layer; Described metacoxal plate comprises back substrate glass substrate, addressing electrode metacoxal plate dielectric layer and metacoxal plate diaphragm, addressing electrode is set in parallel on the back substrate glass substrate, the metacoxal plate dielectric layer covers on the addressing electrode, and the metacoxal plate diaphragm then covers on the metacoxal plate dielectric layer; Addressing electrode becomes the spatial vertical quadrature with scan electrode; Shadow mask is the conductive plate that comprises face array and bottom outlet array, face and bottom outlet belong to the upper and lower surface of same discharge cell, the area of the face that prebasal plate is relative is 10～20 times of its bottom outlet area relative with metacoxal plate, and the upper shed width of each face is 2～4 times of bottom outlet under shed width; The upper shed of the face on scan electrode and the shadow mask is in the face of placing and place the centre position of upper shed, the under shed of the bottom outlet on addressing electrode and the shadow mask is staggered relatively and place the centre position of under shed, and described shadow mask, scan electrode, addressing electrode are formed the elementary cell of medium blocking type AC discharge type; Apply phosphor powder layer at the face inwall; making the space of face correspondence in the elementary cell of discharge is the visible light light-emitting zone; part visible light directly or after being mapped to the inwall reflection penetrates prebasal plate; by human eye is received; another part directly or through inwall reflexes to the metacoxal plate outgoing; can not be received by human eye; it is characterized in that in metacoxal plate diaphragm surface preparation one deck diffusive reflective film; absorb less to deep UV (ultraviolet light); the visible light that is mapped to the metacoxal plate surface by bottom outlet in the face space is reflexed in the face; part penetrates prebasal plate, by human eye is received.
Reasonablely be, diffusive reflective film of the present invention is by the method for continuous evaporating-plating film forming, and thickness is 50nm～1um.
Reasonable is that the material of diffusive reflective film of the present invention is nanometer SiO
2-XPowder or SiO
2Film.
The present invention compared with prior art has following beneficial effect:
1, plasma display panel of the present invention prepares one deck diffuse reflector at the metacoxal plate inner surface, the visible light that shines metacoxal plate is reflexed to prebasal plate, and the part outgoing, improved the luminosity and the luminous efficiency of existing subtend type discharge shadow mask plasma display panel.
2, to prepare the method technology of reflectance coating simple in the present invention, do not change existing shadow mask plasma display panel technological process.
Description of drawings
Fig. 1 is the structural representation for display panel of the present invention.
Fig. 2 is a diffusive reflective film effect schematic diagram of the present invention.
The preparation process of Fig. 3 nanometer powder diffusive reflective film of the present invention.
The encapsulating structure schematic diagram of Fig. 4 display panel of the present invention.
Among the figure: 1, prebasal plate; 2, metacoxal plate; 3, shadow mask; 4, preceding substrate glass substrate; 5, scan electrode; 6, front substrate medium layer; 7, prebasal plate diaphragm; 8, back substrate glass substrate; 9, addressing electrode; 10, metacoxal plate dielectric layer; 11, metacoxal plate diaphragm; 12, face; 13, bottom outlet; 14, upper shed; 15, under shed; 16, diffusive reflective film; 17, sealing-in frame; 18, blast pipe.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
Shown in Fig. 1-4
A kind of shadow mask plasma display panel, as shown in Figure 1, comprise prebasal plate 1, metacoxal plate 2, shadow mask 3, wherein shadow mask 3 is encapsulated between prebasal plate 1, the metacoxal plate 2, described prebasal plate 1 comprises preceding substrate glass substrate 4, scan electrode 5, front substrate medium layer 6, prebasal plate diaphragm 7, on the substrate glass substrate 4, front substrate medium layer 6 covered on the scan electrode 5 before scan electrode 5 was set in parallel in, and prebasal plate diaphragm 7 covers on the front substrate medium layer 6; Described metacoxal plate 2 comprises back substrate glass substrate 8, addressing electrode 9, metacoxal plate dielectric layer 10 and metacoxal plate diaphragm 11, addressing electrode 9 is set in parallel on the back substrate glass substrate 8, metacoxal plate dielectric layer 10 covers on the addressing electrode 9, and 11 of metacoxal plate diaphragms cover on the metacoxal plate dielectric layer 10; 5 one-tenth spatial vertical quadratures of addressing electrode 9 and scan electrode; Shadow mask 3 is for comprising the conductive plate of face 12 arrays and bottom outlet 13 arrays, face 12 and bottom outlet 13 belong to the upper and lower surface of same discharge cell, 10～20 times of the area of the face 12 that prebasal plate 1 is relative bottom outlet 13 areas that to be them relative with metacoxal plate 2, upper shed 14 width of each face 12 are 2～4 times of bottom outlet 13 under sheds 15 width; The upper shed 14 of the face 12 on scan electrode 5 and the shadow mask 3 is in the face of placing and place the centre position of upper shed 14, the under shed 15 of the bottom outlet 13 on addressing electrode 10 and the shadow mask 3 is staggered relatively and place the centre position of under shed 15, and described shadow mask 3, scan electrode 5, addressing electrode 9 are formed the elementary cell of medium blocking type AC discharge types; Apply phosphor powder layer at face 12 inwalls; making the space of face 12 correspondences in the elementary cell of discharge is visible light light-emitting zones; part visible light directly or after being mapped to the inwall reflection penetrates prebasal plate 1; by human eye is received; another part directly or through inwall reflexes to the metacoxal plate outgoing; can not be received by human eye; it is characterized in that in metacoxal plate diaphragm 11 surface preparation one deck diffusive reflective film 16; absorb less to deep UV (ultraviolet light); the visible light that is mapped to the metacoxal plate surface by bottom outlet 13 in face 12 spaces is reflexed in the face 12; part penetrates prebasal plate 1, by human eye is received.
The effect signal of diffusive reflective film as shown in Figure 2.
Diffusive reflective film 16 is by nanometer SiO
2-XPowder constitutes reflective coating by spraying, and good in diaphragm 11 surface attachment of metacoxal plate 2, all preparation process do not influence the performance of diaphragm 11, and diffusive reflective film 16 preparation processes as shown in Figure 3.
The sealing-in frame of making of low-melting glass all around 17 of prebasal plate 1, shadow mask 3, metacoxal plate 2 is carried out hermetic seal, outside the viewing area, in the sealing-in frame 17, blast pipe 18 is set, link to each other with vacuum system by this blast pipe, can carry out vacuum degassing to above-mentioned device, and fill with behind the required working gas of certain air pressure with the vacuum system sealed-off, this has just formed plasma display panel provided by the present invention, and the sealing-in destructing as shown in Figure 4.
The operation principle of this plasma display panel is as follows: add a high voltage narrow pulse or slope pulsed erase signal between addressing electrode 9 and scan electrode 5, wipe the wall electric charge of discharge accumulation last time; On scan electrode 5, add a high impulse then and choose this row, on addressing electrode, apply simultaneously the data pulse of this row, the difference of this data pulse voltage amplitude and scanning voltage is higher than the firing voltage between scan electrode and the addressing electrode, control triggers discharge, thereby forms the wall CHARGE DISTRIBUTION corresponding with required display message at this row; After finishing the visual initial discharge of whole screen line by line, between 5 groups of scan electrodes and addressing electrode 9, apply and keep discharge pulse, make wall voltage and keep the firing voltage that the voltage sum is higher than the pixel that is addressed, produce discharge, the fluorescent material that the deep UV (ultraviolet light) of discharge generation excites face 12 inwalls to apply sends visible light, the part visible light that diffusive reflective film 16 will be mapped to metacoxal plate reflects header board, has so just realized the demonstration of this frame image, and circulation like this is displayed image frame by frame.
Plasma display panel of the present invention can adopt a son driving method of addressing and display separation (ADS), also can adopt Alternate Lighting of Surfaces (ALIS) driving method.
Embodiment two.
In the foregoing description one, diffusive reflective film 16 also can be by when forming film 11, and by the mode of continuous evaporating-plating film forming, forming thickness is the SiO of 50nm～1um
2Reflectance coating.The operation principle such as the embodiment one of the shadow mask plasma display panel that present embodiment constitutes.
Present embodiment has only provided the concrete example application of part, but for the patent personnel that are engaged in flat-panel monitor, also can design the various deformation product according to above enlightenment, and this still is considered to be covered by among the present invention.
Claims (3)
1. shadow mask plasma display panel, comprise prebasal plate (1), metacoxal plate (2), shadow mask (3), wherein shadow mask (3) is encapsulated between prebasal plate (1), the metacoxal plate (2), described prebasal plate (1) comprises preceding substrate glass substrate (4), scan electrode (5), front substrate medium layer (6), prebasal plate diaphragm (7), scan electrode (5) is set in parallel on the preceding substrate glass substrate (4), front substrate medium layer (6) covers on the scan electrode (5), and prebasal plate diaphragm (7) covers on the front substrate medium layer (6); Described metacoxal plate (2) comprises back substrate glass substrate (8), addressing electrode (9), metacoxal plate dielectric layer (10) and metacoxal plate diaphragm (11), addressing electrode (9) is set in parallel on the back substrate glass substrate (8), metacoxal plate dielectric layer (10) covers on the addressing electrode (9), and metacoxal plate diaphragm (11) then covers on the metacoxal plate dielectric layer (10); Addressing electrode (9) becomes the spatial vertical quadrature with scan electrode (5); Shadow mask (3) is for comprising the conductive plate of face (12) array and bottom outlet (13) array, face (12) and bottom outlet (13) belong to the upper and lower surface of same discharge cell, the area of the face (12) that prebasal plate (1) is relative is 10～20 times of its bottom outlet (13) area relative with metacoxal plate (2), and upper shed (14) width of each face (12) is 2～4 times of bottom outlet (13) under shed (15) width; The upper shed (14) of the face (12) on scan electrode (5) and the shadow mask (3) is in the face of placing and place the centre position of upper shed (14), the under shed (15) of the bottom outlet (13) on addressing electrode (10) and the shadow mask (3) is staggered relatively and place the centre position of under shed (15), and described shadow mask (3), scan electrode (5), addressing electrode (9) are formed the elementary cell of medium blocking type AC discharge type; Apply phosphor powder layer at face (12) inwall; making the space that face (12) is corresponding in the elementary cell of discharge is the visible light light-emitting zone; part visible light directly or after being mapped to the inwall reflection penetrates prebasal plate (1); by human eye is received; another part directly or through inwall reflexes to the metacoxal plate outgoing; can not be received by human eye; it is characterized in that in metacoxal plate diaphragm (11) surface preparation one deck diffusive reflective film (16); absorb less to deep UV (ultraviolet light); the visible light that is mapped to the metacoxal plate surface by bottom outlet (13) in face (12) space is reflexed in the face (12); part penetrates prebasal plate (1), by human eye is received.
2. shadow mask plasma display panel according to claim 1 is characterized in that the method for above-mentioned diffusive reflective film (16) by the continuous evaporating-plating film forming, and thickness is 50nm～1um.
3. shadow mask plasma display panel according to claim 1, the material that it is characterized in that above-mentioned diffusive reflective film (16) is nanometer SiO
2-xPowder or SiO
2Film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101561807A CN101369507B (en) | 2008-09-24 | 2008-09-24 | Shadow mask type plasma display board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101561807A CN101369507B (en) | 2008-09-24 | 2008-09-24 | Shadow mask type plasma display board |
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| CN101369507A CN101369507A (en) | 2009-02-18 |
| CN101369507B true CN101369507B (en) | 2010-08-11 |
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| CN2008101561807A Expired - Fee Related CN101369507B (en) | 2008-09-24 | 2008-09-24 | Shadow mask type plasma display board |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847555A (en) * | 2010-03-31 | 2010-09-29 | 东南大学 | Flexible shadow mask plasma display panel |
| CN103377871A (en) * | 2012-04-23 | 2013-10-30 | 东南大学 | One-faced flexible ultra-thin plane ultraviolet source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259874Y (en) * | 2008-09-24 | 2009-06-17 | 东南大学 | Shadow mask type plasma display board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201259874Y (en) * | 2008-09-24 | 2009-06-17 | 东南大学 | Shadow mask type plasma display board |
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Granted publication date: 20100811 Termination date: 20130924 |