CN100485852C - Electrode pair structure of plasma display - Google Patents
Electrode pair structure of plasma display Download PDFInfo
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- CN100485852C CN100485852C CNB031474357A CN03147435A CN100485852C CN 100485852 C CN100485852 C CN 100485852C CN B031474357 A CNB031474357 A CN B031474357A CN 03147435 A CN03147435 A CN 03147435A CN 100485852 C CN100485852 C CN 100485852C
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- agglomerated material
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Abstract
The invention discloses an electrode pair structure of plasma display panel, including two electrodes, each of which includes a photopermeable auxiliary electrode extending onto the surface of a front substrate in the first direction and many photopermeable sustain electrodes which are all connected with the auxiliary electrode and thinner than the auxiliary electrodes, where each auxiliary electrode includes a first sintered material and each sustain electrode include a second one.
Description
Technical field
The present invention relates to a kind of electrode pair (electrode pair) structure of plasma display, particularly a kind of light-permeable electrode pair structure of utilizing agglomerated material to constitute.
Background technology
Generally speaking, display unit can be divided into cathode ray tube (cathode ray tube) and two kinds of patterns of flat-panel screens, and flat-panel screens can be divided into LCD, plasma display and Field Emission Display (filed emission display, FED) etc.Wherein because plasma display has gently, approach, easy maximization, radiationless line and do not have characteristics such as visual angle problem, so become the main flow of following large scale full-color display.
Please refer to Fig. 1, Fig. 1 is the schematic perspective view of existing plasma display 10.As shown in Figure 1, plasma display 10 comprises that a prebasal plate 12, fills and seal up for safekeeping discharge gas (discharge gas, demonstration) between prebasal plate 12 and metacoxal plate 14 with the parallel relative metacoxal plate 14 and of prebasal plate 12.Plasma display 10 also comprises a plurality of electrode pairs of being located on the prebasal plate 12 that are arranged in parallel 16, and a plurality of to be set in parallel in metacoxal plate 14 lip-deep addressing electrodes (address electrode) 26 with the perpendicular direction of electrode pair 16.Wherein, each electrode pair 16 includes two electrodes parallel to each other 18 and electrodes 20, and electrode 18 is by keeping electrode 18a and auxiliary electrode 18b is laminated, and electrode 20 then comprises keeps electrode 20a and auxiliary electrode 20b.Generally speaking, keeping electrode 18a is by tin indium oxide (Indium Tin Oxide with keeping electrode 20a mostly, ITO) transparency electrode that is constituted, auxiliary electrode 18b, 20b then are the opaque electrodes that is made of chromium/copper/chromium (Cr/Cu/Cr) three-layer metal material, they are laminated in keeps electrode 18a, 20a surface, with as the auxiliary usefulness of keeping electrode 18a, 20a conduction.
In addition, plasma display 10 comprises that also one is covered in the dielectric layer 22 on the prebasal plate 12; One is covered in the protective layer 24 on the dielectric layer 22; A plurality of barrier ribs (rib) 28 is located on the metacoxal plate 14 in mode parallel to each other, is used for isolating two adjacent addressing electrodes 26; And the fluorescence coating 30 of sidewall surfaces of coating the barrier rib 28 of each addressing electrode 26 surface and both sides.Wherein, the intersection (intersection) of each electrode pair 16 and two adjacent barrier ribs 28 forms a discharge cell (dischargecell), and the discharge gas in each discharge cell is excited after the ionization, ultraviolet irradiation fluorescence coating 30 be can produce, and red, green or blue luminous ray produced respectively.
It should be noted that existing electrode 18a, the 20a of keeping is made of tin indium oxide, because the light transmittance height of tin indium oxide, can increase the picture brightness of plasma display 10.But, tin indium oxide has the higher shortcoming of resistance value, the live width that especially ought keep electrode 18a, 20a more hour, its corresponding resistance value is also high more, thereby causes the power consumption of plasma display 10 to increase.Existing method in order to the solution aforesaid drawbacks is to utilize lighttight metallic conduction material to replace tin indium oxide, keep electrode 18a, 20a and auxiliary electrode 18b, 20b and form, yet, though this kind practice has improved the conductance of keeping electrode 18a, 20a and auxiliary electrode 18b, 20b, but the aperture opening ratio (open ratio) of plasma display 10 is descended, thereby make the picture brightness step-down of plasma display 10.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of electrode pair structure of plasma display, to overcome above-mentioned shortcoming.
According to the present invention, a kind of plasma display (plasma display panel is provided in preferred implementation method of the present invention, PDP) electrode pair (electrode pair) structure, this electrode pair structure is arranged at a prebasal plate surface of above-mentioned plasma display, this electrode pair structure comprises two electrodes, each electrode includes a light-permeable, extend the auxiliary electrode on above-mentioned prebasal plate surface along a first direction, and a plurality of light-permeables keep electrode, the above-mentioned electrode of keeping all is electrically connected on above-mentioned auxiliary electrode, and the thickness of respectively keeping electrode is all less than the thickness of auxiliary electrode, wherein above-mentioned each auxiliary electrode includes one first agglomerated material, includes one second agglomerated material and respectively keep electrode.
Because the present invention utilizes agglomerated material to make above-mentioned each auxiliary electrode and respectively keeps electrode, therefore each auxiliary electrode with respectively keep electrode and have light-permeable and high conductivity simultaneously, so, the present invention can improve the picture brightness of plasma display, and can reduce the power consumption of plasma display.
Description of drawings
Fig. 1 is the schematic perspective view of existing plasma display 10;
Fig. 2 is the schematic perspective view of the prebasal plate 42 of plasma display 40 of the present invention;
Fig. 3 is the front view of prebasal plate 42 shown in Figure 2;
Fig. 4 is the schematic perspective view of the prebasal plate 42 of the plasma display 40 of another execution mode of the present invention;
Fig. 5 to Fig. 9 is the manufacture method schematic diagram of the prebasal plate 42 of plasma display 40 of the present invention.
The drawing reference numeral explanation
10 plasma displays, 12 prebasal plates
14 metacoxal plates, 16 electrode pairs
18 electrode 18a keep electrode
18b auxiliary electrode 20 electrodes
20a keeps electrode 20b auxiliary electrode
22 dielectric layers, 24 protective layers
26 addressing electrodes, 28 barrier ribs
30 fluorescence coatings
40 plasma displays, 42 prebasal plates
43 sensitization agglomerated material 43a are the sensitization agglomerated material of composition
44 electrode pairs, 45 sensitization agglomerated materials
45a is sensitization agglomerated material 46 electrodes of composition
46a auxiliary electrode 46b keeps electrode
47a conductive layer 47b conductive layer
48 electrode 48a auxiliary electrodes
48b keeps electrode 49a conductive layer
The 49b conductive layer
Embodiment
Please refer to Fig. 2 to Fig. 4, Fig. 2 is the schematic perspective view of the prebasal plate 42 of plasma display 40 of the present invention, and Fig. 3 is the front view of prebasal plate 42 shown in Figure 2, and Fig. 4 is the schematic perspective view of the prebasal plate 42 of the plasma display 40 of another execution mode of the present invention.As shown in Figure 2, plasma display 40 comprises a prebasal plate 42, and a plurality of lip-deep electrode pair 44 that is arranged at prebasal plate 42 abreast.In addition, this plasma display 40 also comprises a metacoxal plate (not shown) parallel and relative with prebasal plate 42, and a plurality of barrier rib (not shown)s that are arranged at abreast between above-mentioned metacoxal plate and the prebasal plate 42, and each barrier rib all is basically perpendicular to each electrode pair 44, and wantonly two adjacent each barrier rib and the intersection of each electrode pair 44 all form a discharge cell.
As Fig. 2 and shown in Figure 3, an electrode pair 44 comprises two parallel electrodes 46 and electrode 48.Wherein, electrode 46 comprises a lip-deep auxiliary electrode 46a light-permeable, that extend prebasal plate 42, and a plurality of light-permeables keep electrode 46b, respectively keep electrode 46b and all be electrically connected on auxiliary electrode 46a, and auxiliary electrode 46a is formed by a conductive layer 47b and a conductive layer 47a stacked on top of one another, and the thickness of respectively keeping electrode 46b is all less than the thickness of each auxiliary electrode 46a.In addition, electrode 48 comprises that one is parallel to the light-permeable auxiliary electrode 48a of auxiliary electrode 46a, and a plurality ofly keep electrode 48b with respect to the light-permeable of respectively keeping electrode 46b, all be electrically connected on auxiliary electrode 48a and respectively keep electrode 48b, and auxiliary electrode 48a is formed by a conductive layer 49b and a conductive layer 49a stacked on top of one another, and respectively keeps the thickness of the thickness of electrode 48b less than each auxiliary electrode 48a.In addition, as shown in Figure 2, two relative keep electrode 46b and 48b all is positioned at same discharge cell, are used for discharging lighting the plasma in each discharge cell, and each auxiliary electrode 46a, 48a then are used for auxiliary electrode 46b, the 48b conduction of keeping.It should be noted that, respectively keeping electrode 46b, 48b constitutes by black sintering silver, conductive layer 47a, the 49a of each auxiliary electrode 46a, 48a constitutes by black sintering silver, and conductive layer 47b, the 49b of each auxiliary electrode 46a, 48a then constitutes by a white sintering silver.
Should be noted that, because white sintering silver is an agglomerated material (sinteringmaterial) with black sintering silver, therefore white sintering silver all has hole and can allow light to pass through with black sintering silver, so each auxiliary electrode 46a, 48a and respectively keep electrode 46b, 48b and all have light-permeable.Moreover, parameters such as porosity by controlling white sintering silver and black sintering silver and thickness, just the printing opacity degree that can adjust each auxiliary electrode 46a, 48a and respectively keep electrode 46b, 48b, white sintering silver then can be controlled by parameters such as adjusting sintering temperature, sintering time and material with the porosity of black sintering silver.And, because the resistance value of black sintering silver and white sintering silver only is about 10m Ω/, far below resistance value (15～30 Ω/), have the advantage of light-permeable and low-resistance value simultaneously with white sintering silver of tin indium oxide so the black sintering is silver-colored.In addition, again since the resistance value of white sintering silver a little less than the resistance value of black sintering silver, so the conductivity of each auxiliary electrode 46a, 48a is higher, keeps electrode 46b, 48b and conducts electricity and can assist effectively.On the other hand, include the darker black sintering silver of a color, can absorb the light that enters plasma display 40 by external environment, thereby can increase the contrast effect of plasma display 40 owing to respectively keep electrode 46b, 48b.
In addition, in other execution mode of the present invention, respectively keeping electrode 46b, 48b also can be made of a white sintering silver, and conductive layer 47a, the 49a of each auxiliary electrode 46a, 48a are made of a white sintering silver, and conductive layer 47b, the 49b of each auxiliary electrode 46a, 48a then is made of a black sintering silver.
On the other hand, respectively keep electrode 46b, 48b shown in Figure 2 are not unique structure of the present invention, in fact, the shape of respectively keeping electrode 46b, 48b can design according to manufacture process needs, discharging efficiency or customer demand etc., for example, T shape shown in Figure 4 is kept electrode 46b, 48b and just is another embodiment of the present invention.And,, therefore as shown in Figure 4,, respectively keep the still quite excellent conductivity of tool of electrode 46b, 48b even it is little of tens of microns respectively to keep the live width W of electrode 46b, 48b because black sintering silver is quite low with the resistance value of white sintering silver.
Please refer to Fig. 5 to Fig. 9, Fig. 5 to Fig. 9 is the manufacture method schematic diagram for the prebasal plate 42 of plasma display 40 of the present invention.As shown in Figure 5, at first utilize the mode of coating or wire mark, a sensitization agglomerated material 43 adequate reliefs are formed on the surface of a glass substrate 42.Then, as shown in Figure 6, carry out one first exposure and development step, so that form the sensitization agglomerated material 43a of a plurality of compositions in sensitization agglomerated material 43, respectively the sensitization agglomerated material 43a of composition limits each respectively and keeps electrode 46b and the conductive layer 47a of 48b and each auxiliary electrode 46a and 48a and the position of 49a.In preferred implementation of the present invention, photonasty agglomerated material 43 comprises a black silver paste (blackAg paste), and this black silver paste is made of silver powder, oxide and a photosensitive material.
Subsequently, as shown in Figure 7, utilize the mode of coating or wire mark again, with a sensitization agglomerated material 45 adequate reliefs be formed in glass substrate 42 with each on the surface of the sensitization agglomerated material 43a of composition.Then, as shown in Figure 8, carry out one second exposure and development step, so that form the sensitization agglomerated material 45a of a plurality of compositions in sensitization agglomerated material 45, respectively the sensitization agglomerated material 45a of composition limits the conductive layer 47b of each auxiliary electrode 46a and 48a and the position of 49b respectively.At this moment, each the width of the sensitization agglomerated material 43a of composition be respectively W
1, and each the width of the sensitization agglomerated material 45a of composition be respectively W
2In preferred implementation of the present invention, sensitization agglomerated material 45 comprises a white silver paste (white Ag paste), and this white silver paste is made of a silver powder and a photosensitive material.
At last, as shown in Figure 9, carry out a sintering step, with each the sensitization agglomerated material 43a of composition and each sensitization agglomerated material 45a of composition of while sintering, respectively keep electrode 46b, 48b and each auxiliary electrode 46a, 48a and form, wherein the temperature in the sintering step is between 500 ℃ and 600 ℃.On the other hand, because above-mentioned sintering step can make each agglomerated material shrink, therefore respectively the width of the sensitization agglomerated material 43a of composition can be by W
1Be contracted to W
3, each the width of the photonasty agglomerated material 45a of composition then by W
2Be reduced into W
4That is to say, in each road exposure and development step, the present invention forms photonasty agglomerated material 43a, the 45a of the bigger composition of live width (line width), dwindle the photonasty agglomerated material 43a of composition, the live width of 45a via sintering step more subsequently, respectively keep electrode 46b, 48b and each auxiliary electrode 46a, 48a and form, hence one can see that, and the width of each electrode of the present invention can be less than the resolution of general gold-tinted technical process.In addition, in other execution mode of the present invention, when above-mentioned first exposure and after development step carries out, also can carry out earlier a sintering step with each the sensitization agglomerated material 43a of composition sinter into and respectively keep electrode 46b, 48b.In addition, in other execution mode of the present invention, respectively the sensitization agglomerated material 45a of composition also can be formed on the glass substrate 42 earlier, and then the sensitization agglomerated material 43a that forms a plurality of compositions is in each on the sensitization agglomerated material 45a of composition, the last sintering step that utilizes again comes sintering each sensitization agglomerated material 43a, 45a of composition, and in the present embodiment, sensitization agglomerated material 43 is a white silver paste, and sensitization agglomerated material 45 then is a black silver paste.
Compared with prior art, the present invention utilizes white sintering silver to make auxiliary electrode 46a, 48a and keep electrode 46b, 48b with black sintering silver respectively, therefore auxiliary electrode 46a of the present invention, 48a and keep the electrical conductivity height of electrode 46b, 48b, and then can reduce the power consumption of plasma display 40.In addition, because white sintering silver is agglomerated material with black sintering silver, it has hole and can allow light to pass through, therefore auxiliary electrode 46a of the present invention, 48a and keep electrode 46b, 48b and all have light-permeable, thus can improve the picture brightness of plasma display 40.And, can constitute by black sintering silver owing to respectively keep electrode 46b, 48b, thereby can increase the contrast effect of plasma display 40.
The above only is a preferred implementation of the present invention, and all equivalents and modifications of being made according to the present invention's design all should fall within the present invention's scope required for protection.
Claims (20)
1. the electrode pair structure of a plasma display, this electrode pair structure is arranged at a prebasal plate surface of above-mentioned plasma display, and this electrode pair structure comprises:
Two electrodes, each electrode includes:
The auxiliary electrode of one light-permeable, it extends above-mentioned prebasal plate surface along a first direction; And
A plurality of light-permeables keep electrode, the above-mentioned electrode of keeping all is electrically connected on above-mentioned auxiliary electrode, and the thickness of respectively keeping electrode is all less than the thickness of above-mentioned auxiliary electrode;
Wherein the auxiliary electrode of above-mentioned light-permeable comprises one first agglomerated material, respectively keeps electrode and includes one second agglomerated material.
2. electrode pair structure as claimed in claim 1, wherein above-mentioned first agglomerated material comprise a white sintering silver and a black sintering silver.
3. electrode pair structure as claimed in claim 2, wherein above-mentioned second agglomerated material comprise a white sintering silver.
4. electrode pair structure as claimed in claim 2, wherein above-mentioned second agglomerated material comprise a black sintering silver, in order to increase the contrast effect of above-mentioned plasma display.
5. plasma display, it comprises:
One first substrate, it has a first surface;
One second substrate, parallel relative with this first substrate, a plurality of barrier ribs are arranged between this second substrate and above-mentioned first substrate; And
A plurality of electrode pairs are located on above-mentioned first substrate, and each electrode pair includes:
Two auxiliary electrodes, they all extend on the above-mentioned first surface along a first direction, and the intersection of above-mentioned auxiliary electrode and wantonly two adjacent each barrier rib all forms a discharge cell; And
A plurality of electrode groups of keeping are arranged at respectively on the first surface in above-mentioned each discharge cell, and respectively keep the electrode group and include two relative electrodes of keeping, and they are electrically connected on each auxiliary electrode respectively;
The wherein above-mentioned thickness of respectively keeping electrode is all less than the thickness of each auxiliary electrode, and each auxiliary electrode includes one first agglomerated material, and respectively keep electrode and include one second agglomerated material, and each auxiliary electrode and respectively keep electrode and all have light-permeable.
6. plasma display as claimed in claim 5, wherein above-mentioned each barrier rib comprises a strip structure or a closed structure.
7. plasma display as claimed in claim 6, wherein the barrier rib of above-mentioned closed structure is triangularly arranged.
8. plasma display as claimed in claim 5, wherein above-mentioned first agglomerated material comprise a white sintering silver and a black sintering silver.
9. plasma display as claimed in claim 8, wherein above-mentioned second agglomerated material comprise a white sintering silver.
10. plasma display as claimed in claim 8, wherein above-mentioned second agglomerated material comprise a black sintering silver, in order to increase the contrast effect of above-mentioned plasma display.
11. the manufacture method of the electrode of a plasma display, this electrode are located on the prebasal plate of above-mentioned plasma display, this electrode comprises an auxiliary electrode and a plurality of electrode of keeping that is electrically connected on above-mentioned auxiliary electrode, and this method comprises:
On above-mentioned prebasal plate, form one first sensitization agglomerated material;
Carry out one first exposure and development step, so that in the above-mentioned first sensitization agglomerated material, limit the above-mentioned pattern of respectively keeping electrode and auxiliary electrode;
On above-mentioned prebasal plate, form one second sensitization agglomerated material;
Carry out one second exposure and development step, so that in the above-mentioned second sensitization agglomerated material, limit the pattern of above-mentioned auxiliary electrode; And
Carry out a sintering step, so that above-mentioned first and second sensitization agglomerated material of sintering simultaneously, and form above-mentioned electrode and the auxiliary electrode kept, and above-mentionedly keep electrode and auxiliary electrode all has light-permeable.
12. method as claimed in claim 11, the wherein above-mentioned first sensitization agglomerated material comprises a black silver paste.
13. method as claimed in claim 12, wherein above-mentioned black silver paste comprises silver powder, oxide and a photosensitive material.
14. method as claimed in claim 12, the wherein above-mentioned second sensitization agglomerated material comprises a white silver paste.
15. method as claimed in claim 14, wherein above-mentioned white silver paste comprises a silver powder and a photosensitive material.
16. method as claimed in claim 15, the wherein above-mentioned second sensitization agglomerated material is formed on the above-mentioned first sensitization agglomerated material.
17. method as claimed in claim 11, the wherein above-mentioned first sensitization agglomerated material comprises a white silver paste.
18. method as claimed in claim 17, the wherein above-mentioned second sensitization agglomerated material comprises a black silver paste.
19. method as claimed in claim 18, the wherein above-mentioned first sensitization agglomerated material is formed on the above-mentioned second sensitization agglomerated material.
20. method as claimed in claim 11, wherein the temperature of above-mentioned sintering step is between 500 ℃ and 600 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031474357A CN100485852C (en) | 2003-07-10 | 2003-07-10 | Electrode pair structure of plasma display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031474357A CN100485852C (en) | 2003-07-10 | 2003-07-10 | Electrode pair structure of plasma display |
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| Publication Number | Publication Date |
|---|---|
| CN1567510A CN1567510A (en) | 2005-01-19 |
| CN100485852C true CN100485852C (en) | 2009-05-06 |
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| CNB031474357A Expired - Fee Related CN100485852C (en) | 2003-07-10 | 2003-07-10 | Electrode pair structure of plasma display |
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| CN (1) | CN100485852C (en) |
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| CN1567510A (en) | 2005-01-19 |
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