CN2924783Y - Asymmetrical shadow mask type plasma display panel - Google Patents
Asymmetrical shadow mask type plasma display panel Download PDFInfo
- Publication number
- CN2924783Y CN2924783Y CNU2006200753327U CN200620075332U CN2924783Y CN 2924783 Y CN2924783 Y CN 2924783Y CN U2006200753327 U CNU2006200753327 U CN U2006200753327U CN 200620075332 U CN200620075332 U CN 200620075332U CN 2924783 Y CN2924783 Y CN 2924783Y
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- electrode
- shadow mask
- grid hole
- plasma display
- dielectric layer
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Abstract
The utility model is dead against the problems of that, the discharge space of the current existing shadow mask plasma display panel is small, the discharge path is short and the phosphor applied area is small, thus the brightness and the luminous efficiency are low. The utility model relates to a non-symmetric shadow mask plasma display panel with the high brightness and luminous efficiency, which includes a front and a back base plates, a conductive shadow mask which is folded between the front and the back base plates and used to support the front and the back base plates is provided with a grid array, each grid hole is vertically crossed with an address electrode and a scan electrode to form a basic discharge unit. The utility model is characterized in that, the lower openings of the scan electrode and the shadow mask grid holes are deviated from the discharge unit center simultaneously, furthermore, the deviation directions of the two are reverse, so as to extend the discharge path between the scan electrode and the address electrode, increase the phosphor applied area, further to improve the brightness and luminous efficiency of the display panel.
Description
Technical field
The utility model relates to a kind of plasma display panel, relates in particular to shadow mask plasma display panel, specifically a kind of asymmetric shadow mask plasma display panel.
Background technology
Conventional shadow mask plasma display panel mainly comprises prebasal plate, metacoxal plate and shadow mask.Metacoxal plate comprises the back substrate glass substrate, and the addressing electrode that forms on the back substrate glass substrate is having the dielectric layer that forms on the back substrate glass substrate of addressing electrode, the protective layer that forms on dielectric layer; Substrate glass substrate and on the lower surface of preceding substrate glass substrate, form scan electrode with the addressing electrode spatial vertical before prebasal plate comprises, the dielectric layer that forms on the lower surface of the preceding substrate glass substrate that scan electrode is arranged is at the protective layer of dielectric layer lower surface formation; Being clipped in the middle shadow mask of forward and backward substrate is the thin web plate that comprises the mesh 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.The operation principle of this plasma display panel 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 whole screen image initial discharge line by line, between scan electrode group and addressing electrode, apply and keep discharge pulse, to show this two field picture.Circulation like this is display image frame by frame.For colour plasma display board, the coated inner wall three primary colors fluorescent powder of shadow mask, the plasma resonance vacuum-ultraviolet light that gas discharge forms in each discharge cell excites different fluorescent materials to send corresponding three primary colors light.Yet have following problem in the above-mentioned shadow mask plasma display panel: 1. owing to adopt subtend formula discharging structure, discharge space is less, and discharge path is shorter, so discharging efficiency is lower.2. owing to but the area of coating fluorescent powder on the shadow mask hole wall is less, so brightness is lower.3. because region of discharge is far away apart from phosphor powder layer, and the 147nm vacuum-ultraviolet light of discharge generation is big in resonance absorption loss in the fluorescent material radiative process, so brightness and luminous efficiency are lower.
Summary of the invention
The purpose of this utility model is less at the discharge space of existing shadow mask plasma display panel, discharge path is shorter, fluorescent powder coated area less thereby brightness and the lower a kind of asymmetric shadow mask plasma display panel with higher brightness and luminous efficiency of problem utility model of luminous efficiency.
The technical solution of the utility model is:
A kind of asymmetric shadow mask plasma display panel, comprise metacoxal plate 1, prebasal plate 2, shadow mask 3, wherein shadow mask 3 is positioned at forward and backward substrate 1, between 2, described metacoxal plate 1 is main by back substrate glass substrate 4, form as first electrode 5, dielectric layer 6, the diaphragm 7 of row electrode group or address electrodes of address electrode group, wherein first electrode 5 is positioned on the back substrate glass substrate 4, and dielectric layer 6 covers on first electrode 5, and 7 of diaphragms cover on the dielectric layer 6; Described prebasal plate 2 is mainly by preceding substrate glass substrate 8; second electrode 9 as column electrode group or scan electrode group; dielectric layer 10; diaphragm 11 is formed; before wherein second electrode 9 is positioned on substrate glass substrate 8 lower surfaces and with metacoxal plate 1 on 5 one-tenth spatial vertical quadratures of first electrode; dielectric layer 10 covers on second electrode 9; 11 of diaphragms cover on the dielectric layer 10; it is characterized in that described shadow mask 3 is one to comprise the conductive plate of grid hole 12 arrays; described grid hole 12 and prebasal plate 2 relative upper shed areas are 1～20 times of the relative under shed area of itself and metacoxal plate 1; and the off(-)center of upper and lower opening; centre-to-centre spacing is 0.15～0.35 times of cell columns direction length; second electrode 9 departs from the cell columns at 0.1～0.4 times at grid hole 12 upper shed centers to length; and second electrode 9 is opposite with the offset direction of grid hole 12 under sheds; each grid hole 12 and first electrode 5 and second electrode 9 intersect vertically, described shadow mask grid hole 12; cover the medium blocking type alternating current discharge elementary cell of first electrode 5 with second electrode, 9 formation, one unsymmetric structure that is coated with dielectric layer 10 of dielectric layer 6.
The utility model has also further been taked following technical measures:
It is 0.01～0.9 shadow mask thickness that the position of the row that the back side of the shadow mask 3 that contacts with metacoxal plate 1 is formed corresponding to first electrode 5 forms the degree of depth, width is the groove array 13 of 0.1～1.5 times first electrode, 5 width, this groove 13 connects the adjacent net checkerwork cell 12 of column direction, and extends to the shadow mask frame always.
Second electrode 9 in the alternating current discharge elementary cell of each grid hole 12 correspondence or be made up of some parallel electrodes, or be made up of some parallel electrodes and a vertical electrode, the length of described vertical electrode are that 0.1～0.8 times cell columns is to length.
The upper shed of shadow mask grid hole 12 can be strip, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, under shed also can be strip, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, but and the structure combination in any of upper and lower opening.
The utlity model has following advantage:
1. after applying suitable firing voltage on second electrode 9 and first electrode 5, promptly produce in the plasma display panel discharge cell of the present utility model and tiltedly draw discharge, this oblique discharge had both had the advantage of surface discharge structure discharge path 16 length, can improve luminous efficiency, have the low characteristics of subtend discharging structure operating voltage again, can reduce power consumption.2. the under shed of shadow mask grid hole 12 is far smaller than upper shed, makes the area of grid hole perisporium increase greatly, but the surface covered of fluorescent material increase greatly, thereby can improve display brightness, improve luminous efficiency.
Description of drawings
Fig. 1 is the structural representation for display panel of the present utility model.
Fig. 2 is a shade mask structure schematic diagram of the present utility model.
Fig. 3 is the structure front view of strip groove shadow mask of the present utility model.
Fig. 4 is the encapsulating structure schematic diagram of display panel of the present utility model.
Fig. 5 is the second electrode arranging structure schematic diagram of the present utility model.
Fig. 6 is the structural representation of the various shadow mask grid holes of the utility model.
Fig. 7 is the comparison of three kinds of discharge modes, and wherein (a) is the surface discharge structure, (b) is the subtend discharging structure, (c) is asymmetric oblique discharging structure.
Embodiment
Following structure drawings and Examples are further described the utility model.
Embodiment one.
Shown in Fig. 1-4.
A kind of asymmetric shadow mask plasma display panel comprises metacoxal plate 1, prebasal plate 2, shadow mask 3, and wherein shadow mask 3 is positioned between the forward and backward substrate 1,2.Described metacoxal plate 1 mainly is made up of back substrate glass substrate 4, first electrode 5, dielectric layer 6, diaphragm 7, wherein first electrode 5 (being commonly referred to row electrode group or address electrodes of address electrode group) is positioned on the back substrate glass substrate 4, dielectric layer 6 covers on first electrode 5, and diaphragm 7 (magnesium oxide) then covers on the dielectric layer 6; Described prebasal plate 2 mainly is made up of preceding substrate glass substrate 8, second electrode 9, dielectric layer 10, diaphragm 11; before wherein second electrode 9 (being commonly referred to column electrode group or scan electrode group) is positioned on substrate glass substrate 8 lower surfaces and with metacoxal plate 1 on 5 one-tenth spatial vertical quadratures of first electrode; dielectric layer 10 covers on second electrode 9, and 11 of diaphragms cover on the dielectric layer 10.The shadow mask 3 that is clipped between the front- back baseboard 1,2 is conductive plates that comprise grid hole 12 arrays, its material can be coated with the nonmetallic materials of conductive material membrane for iron, iron containing alloy, other metal alloys or surface, its thickness d is 0.1～1.0mm, the upper shed area that grid hole 12 in the shadow mask 3 contacts with prebasal plate 2 is 1～20 times of its under shed area that contacts with metacoxal plate 1, and the upper and lower opening centre-to-centre spacing of grid hole 12 is cell columns 0.15～0.35 times to length.Second electrode 9 departs from the cell columns at 0.1～0.4 times at grid hole 12 upper shed centers to length, and second electrode 9 is opposite with the offset direction of grid hole 12 under sheds, and each grid hole 12 and first electrode 5 and second electrode 9 intersect.The effect of shadow mask 3 is as follows: on the one hand, shadow mask 3 supports front- back baseboard 1,2; Shadow mask grid hole 12, second electrode 9 that applies dielectric layer 10 and coating dielectric layer 6 first electrodes 5 form the medium blocking type alternating current discharge elementary cell of unsymmetric structures on the other hand.The sealing-in frame of making of low-melting glass all around 14 of prebasal plate 2, shadow mask 3, metacoxal plate 1 is carried out hermetic seal, outside the viewing area, in the sealing-in frame 14, blast pipe 15 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 utility model.The operation principle of this plasma display panel is as follows: if with the first electrode group 5 as addressing electrode, the second electrode group 9 is made scan electrode, with shadow mask 3 as public electrode or suspension, at first, between address electrodes of address electrode group and scan electrode, add a high voltage narrow pulse or slope pulsed erase signal, wipe the wall electric charge of discharge accumulation last time; On scan electrode, add a negative high voltage addressing pulse then and choose this row, on addressing electrode, apply simultaneously the positive data pulse corresponding with this row display message, 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 whole screen image initial discharge line by line, between scan electrode group 9 and addressing electrode 5, apply and keep discharge pulse, to show this two field picture.Circulation like this is display image frame by frame.
Embodiment two.
In embodiment one, forming the degree of depth at the lower surface of the shadow mask 3 that contacts with metacoxal plate 1 corresponding to the position of row electrode group 5 is that (d is the thickness of shadow mask 3 to 0.01d～0.9d, be generally 0.1～1.0mm), width is the groove 13 of 0.1～1.5 times row electrode width, as Fig. 3, this groove 13 connects column direction adjacent net checkerwork cell, and extends to the shadow mask frame always.This has just formed second kind of embodiment provided by the utility model, and its operation principle is with first kind of embodiment.
Embodiment three.
In the foregoing description one, two, each grid hole is that second electrode 9 in the discharge cell is the parallel pole group of many strip electrodes, or on the parallel pole group additional vertical electrode, its length is that 0.1～0.8 times of cell columns is to length, as Fig. 5, just constituted the 3rd embodiment group of the present utility model.
Embodiment four.
In the foregoing description one, two, shadow mask grid hole 12 forms the upper shed of arbitrary polygon structures such as strips, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, and the under shed of arbitrary polygon structure such as strip, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, and the structure of upper and lower opening can be according to the said structure combination in any, as Fig. 6, this has just constituted the 4th embodiment group of the present utility model.
Embodiment five.
In the foregoing description one to four, if apply ultraviolet excited fluorescence powder 17 at shadow mask grid hole perisporium, and fill with suitable working gas, the ultraviolet excitation ultraviolet fluorescence powder that makes it to produce respective wavelength sends visible light, thereby realize that image shows that this has just constituted the 5th embodiment group of the present utility model.
Embodiment six.
In the foregoing description one to four, if apply red, green, blue three primary colors ultraviolet excited fluorescence powder 17 successively at shadow mask grid hole array, and fill with suitable working gas, the ultraviolet excitation ultraviolet fluorescence powder that makes it to produce respective wavelength sends red, green, blue three primary colors visible light, can realize that coloured image shows that this has just constituted the 6th kind of embodiment group of the present utility model.
Claims (6)
1, a kind of asymmetric shadow mask plasma display panel, comprise metacoxal plate (1), prebasal plate (2), shadow mask (3), wherein shadow mask (3) is positioned at forward and backward substrate (1,2) between, described metacoxal plate (1) mainly is made up of back substrate glass substrate (4), first electrode (5) as row electrode group or address electrodes of address electrode group, dielectric layer (6), diaphragm (7), wherein first electrode (5) is positioned on the back substrate glass substrate (4), dielectric layer (6) covers on first electrode (5), and diaphragm (7) then covers on the dielectric layer (6); Described prebasal plate (2) is mainly by preceding substrate glass substrate (8); second electrode (9) as column electrode group or scan electrode group; dielectric layer (10); diaphragm (11) is formed; become the spatial vertical quadrature on substrate glass substrate (8) lower surface and with first electrode (5) on the metacoxal plate (1) before wherein second electrode (9) is positioned at; dielectric layer (10) covers on second electrode (9); diaphragm (11) then covers on the dielectric layer (10); it is characterized in that described shadow mask (3) is one to comprise the conductive plate of grid hole (12) array; the upper shed area that described grid hole (12) is relative with prebasal plate (2) is 1～20 times of its under shed area relative with metacoxal plate (1); and the off(-)center of upper and lower opening; centre-to-centre spacing is 0.15～0.35 times of cell columns direction length; second electrode (9) departs from the cell columns at 0.1～0.4 times at grid hole (12) upper shed center to length; and second electrode (9) is opposite with the offset direction of grid hole (12) under shed; each grid hole (12) intersects vertically described shadow mask grid hole (12) with first electrode (5) and second electrode (9); cover first electrode (5) of dielectric layer (6) and be coated with the medium blocking type alternating current discharge elementary cell of second electrode (9) formation, one unsymmetric structure of dielectric layer (10).
2, asymmetric shadow mask plasma display panel according to claim 1, it is 0.01～0.9 times shadow mask thickness that the position of the row that the back side that it is characterized in that the shadow mask (3) that contacts with metacoxal plate (1) is formed corresponding to first electrode (5) forms the degree of depth, width is the groove array (13) of 0.1～1.5 times first electrode (5) width, this groove (13) connects the adjacent net checkerwork cell (12) of column direction, and extends to the shadow mask frame always.
3, asymmetric shadow mask plasma display panel according to claim 1 and 2, it is characterized in that second electrode (9) in the corresponding alternating current discharge elementary cell of each grid hole (12) or form by some parallel electrodes, or form by some parallel electrodes and a vertical electrode, the length of described vertical electrode is that 0.1～0.8 times cell columns is to length.
4, asymmetric shadow mask plasma display panel according to claim 1 and 2, the upper shed that it is characterized in that shadow mask grid hole (12) can be strip, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, under shed also can be strip, quadrangle, circle, trapezoidal, " T " font, hexagon or octagon, but and the structure combination in any of upper and lower opening.
5,, it is characterized in that grid hole (12) the perisporium part on the shadow mask (3) or all apply monochromatic ultraviolet excitated fluorescent powder (17) according to claim 1 or 2 or 3 or 4 described asymmetric shadow mask plasma display panels.
6,, it is characterized in that grid hole (12) perisporium of shadow mask (3) applies red, green, blue three primary colors ultraviolet fluorescence powder (17) successively according to claim 1 or 2 or 3 or 4 described asymmetric shadow mask plasma display panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200753327U CN2924783Y (en) | 2006-07-21 | 2006-07-21 | Asymmetrical shadow mask type plasma display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200753327U CN2924783Y (en) | 2006-07-21 | 2006-07-21 | Asymmetrical shadow mask type plasma display panel |
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| Publication Number | Publication Date |
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| CN2924783Y true CN2924783Y (en) | 2007-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006200753327U Expired - Lifetime CN2924783Y (en) | 2006-07-21 | 2006-07-21 | Asymmetrical shadow mask type plasma display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009152661A1 (en) * | 2008-06-20 | 2009-12-23 | 南京华显高科有限公司 | A plasma display panel |
| CN109767966A (en) * | 2018-12-27 | 2019-05-17 | 西安交通大学 | A kind of microcavity discharge ultraviolet radioactive device and preparation method thereof and microcavity array based on it |
-
2006
- 2006-07-21 CN CNU2006200753327U patent/CN2924783Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009152661A1 (en) * | 2008-06-20 | 2009-12-23 | 南京华显高科有限公司 | A plasma display panel |
| CN109767966A (en) * | 2018-12-27 | 2019-05-17 | 西安交通大学 | A kind of microcavity discharge ultraviolet radioactive device and preparation method thereof and microcavity array based on it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060721 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |