Background technology
(plasma display panel PDP) is widely used in large-sized display unit to plasma display gradually, and its principle of luminosity mainly is to produce UV-irradiation on fluorescence coating against plasma, sends visible light by fluorescence coating again.Generally speaking, compared to traditional crt display unit, the advantage that plasma display has gently, approaches, easily maximizes and the visual angle is wide etc.Hence one can see that, and plasma display will be a developing tendency in future.
The barrier rib of tradition plasma display is the vertical bar shape and arranges, but it easily produces the phenomenon of overall collapse (global breakdown) along address electrode (address electrode), and, cause its luminous efficiency also lower because its area that can apply fluorescence coating is less.Therefore at present industry develops and a kind of enclosed barrier wall structure, to improve luminous efficiency and can avoid totally collapsing the generation of phenomenon.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the closed barrier wall structure 12 of traditional plasma display.As shown in Figure 1, a closed barrier wall structure 12 is positioned at the upper surface of an infrabasal plate 10, and it comprises many vertical barrier ribs 14 that are arranged in parallel and many horizontal barrier ribs 16 that are arranged in parallel.Wherein vertical barrier rib 14 surrounds a plurality of discharge spaces 18 with horizontal barrier rib 16.In addition, closed barrier wall structure 12 belows are provided with many address electrodes that are arranged in parallel with each other 20 in addition, are used for the lower surface of upper substrate (not shown) many to keep electrode (sustain electrode) (not shown) and carry out address discharge in the part that intersects vertically.In addition, the infrabasal plate 10 of traditional plasma display comprises that in addition an electric inducing layer 24 is formed at infrabasal plate 10 and address electrode 20 tops.
Yet, after infrabasal plate 10 and a upper substrate (not shown) fit tightly, the gas that remains in therebetween only can utilize the finedraw of about 5 microns (micron) between upper substrate and the closed barrier wall structure 12 to flow, therefore will be difficult to vertical barrier rib 14 and the discharge space 18 that horizontal barrier rib 16 is surrounded are carried out bleeding manufacture craft, so will cause the speed of evacuation slowly, problem such as bleed not exclusively.In addition, also be difficult to carry out an inert gas and enclose manufacture craft, so will make the purity difference of the inert gas that pours into, the generation of situations such as shortenings in useful life of guiding discharge instability and plasma display.
Summary of the invention
Main purpose of the present invention is to provide a kind of barrier wall structure and its manufacture method of plasma display, to improve the problems referred to above.
The present invention discloses a kind of barrier wall structure of plasma display, and it includes: a plurality of address electrodes; Many vertical barrier ribs that are arranged in parallel, and have one first spacing distance between the wantonly two adjacent vertical barrier ribs, each this address electrode are parallel to this vertical barrier rib and are positioned at the middle of wantonly two adjacent these vertical barrier ribs; Many the first horizontal barrier ribs that have one first length and be arranged in parallel are connected in a side of vertical barrier rib; Many the second horizontal barrier ribs that have one second length and be arranged in parallel are connected in the opposite side of vertical barrier rib, and the second horizontal barrier rib and the corresponding first horizontal barrier rib are staggered to constitute a plurality of pairs of barrier wall structures, wherein this first length adds that this second length is less than this first spacing distance, and this first horizontal barrier rib and this second horizontal barrier rib are connected to each other, this first horizontal barrier rib is successively decreased to the other end by an end that is connected in vertical barrier rib with the height of the second horizontal barrier rib, to form a gas passage in the place of being connected to each other, this first length is different from this second length, makes this gas passage not be positioned at directly over the address electrode; And a plurality of discharge spaces lay respectively between two barrier wall structures and the vertical barrier rib.
The present invention also discloses a kind of manufacture method of barrier wall structure of above-mentioned plasma display.It at first provides a substrate.Then utilize a slurry to go up and form a barrier rib pattern in a surface of substrate, and the barrier rib pattern includes many vertical barrier ribs that are arranged in parallel, many first horizontal barrier ribs that are arranged in parallel are connected in the opposite side that a side of vertical barrier rib and the second horizontal barrier rib that many are arranged in parallel are connected in vertical barrier rib, wherein the first horizontal barrier rib and the corresponding second horizontal barrier rib are staggered to constitute a plurality of pairs of barrier wall structures, the first horizontal barrier rib and the second horizontal barrier rib in wherein two barrier wall structures are connected to each other, and this first horizontal barrier rib is successively decreased to the other end by an end that is connected in vertical barrier rib with the height of the second horizontal barrier rib, to form this gas passage.Carry out a sintering manufacture craft then with sintering barrier rib pattern.
Because the barrier wall structure of plasma display of the present invention utilizes two barrier wall structures to form discharge space with vertical barrier rib, its have enough bleed-off passages with improve traditional speed of evacuation slowly, bleed not exclusively and the problems such as gas purity difference of enclosing, and then improve the situation of discharge instability and plasma display shortening in useful life.In addition, two barrier wall structures can effectively reduce discharge space interference to each other, and can prevent to misplace electricity and overall situation generation of collapsing.In addition, the manufacture method of plasma display barrier wall structure of the present invention does not need to increase extra manufacture craft.
Description of drawings
Fig. 1 is the schematic diagram of the closed barrier wall structure of traditional plasma display.
Fig. 2 is the schematic perspective view of barrier wall structure of the plasma display of first preferred embodiment of the invention.
Fig. 3 is the top view of barrier wall structure of the plasma display of first preferred embodiment of the invention.
Fig. 4 is the schematic perspective view of barrier wall structure of the plasma display of second preferred embodiment of the invention.
Fig. 5 is the top view of barrier wall structure of the plasma display of second preferred embodiment of the invention.
Fig. 6 is the schematic perspective view of barrier wall structure of the plasma display of third preferred embodiment of the invention.
Fig. 7 is the top view of barrier wall structure of the plasma display of third preferred embodiment of the invention.
Fig. 8 to Figure 11 is the schematic diagram of the barrier wall structure of the plasma display of other preferred embodiment of the present invention.
The primary clustering symbol description
10,32,62,92 infrabasal plates
12 closed barrier wall structures
14,38,68,98,132,142 vertical barrier ribs
16 horizontal barrier ribs
18,48,78,108 discharge spaces
20,34,64,94 address electrodes
22 fluorescence coatings
24,36,66,96 electric inducing layers
30,60,90,120,130,140 barrier wall structures
40,70,100,122,134,144 first horizontal barrier ribs
42,72,102,124,136,146 second horizontal barrier ribs
44,74,104 pairs of barrier wall structures
46,76,106,138,148 gas passages
Embodiment
Please also refer to Fig. 2 and Fig. 3, Fig. 2 is the schematic perspective view of barrier wall structure 30 of the plasma display of first preferred embodiment of the invention, and Fig. 3 is the top view of barrier wall structure 30 of the plasma display of first preferred embodiment of the invention.As Fig. 2 and shown in Figure 3, according to first preferred embodiment of the invention, barrier wall structure 30 is formed at the upper surface top of an infrabasal plate 32, it includes many vertical barrier ribs 38 that are arranged in parallel and many parallel first, second horizontal barrier ribs 40,42 that are crisscross arranged, and includes the upper surface that many address electrodes that are arranged in parallel 34 and an electric inducing layer 36 are covered in address electrode 34 and infrabasal plate 32 on the upper surface of infrabasal plate 32 again.Wherein, infrabasal plate 32 can be by glass (glass) or quartzy (quartz) etc. transparent even nontransparent rigidity material constituted, and each address electrode 34 is the middle that is parallel to vertical barrier rib 38 and is positioned at wantonly two adjacent vertical barrier ribs 38.
As mentioned above, the barrier wall structure 30 of first preferred embodiment of the invention includes many vertical barrier ribs 38 that are arranged in parallel, and has one first spacing distance X1 between each vertical barrier rib 38 and the adjacent vertical barrier rib 38.The first horizontal barrier rib 40 that barrier wall structure 30 included many of having are arranged in parallel is connected in a side of vertical barrier rib 38, right side for example, many the second horizontal barrier ribs 42 that are arranged in parallel then are connected in the opposite side of vertical barrier rib 38, for example left side, and each first horizontal barrier rib 40 is staggered to constitute a plurality of pairs of barrier wall structures 44 for 42 one-tenth with corresponding each second horizontal barrier rib.Wherein, the first horizontal barrier rib 40 has one first length Y1, and the second horizontal barrier rib 42 has one second length Z1, and the first length Y1 adds the second length Z1 greater than the first spacing distance X1, therefore can effectively avoid the generation of the overall collapse phenomenon in the conventional art.In addition, has one second spacing distance W1 between the first horizontal barrier rib 40 in two barrier wall structures 44 and the second horizontal barrier rib 42, be used for constituting a gas passage 46, and the second spacing distance W1 is beneficial to the carrying out of the follow-up manufacture craft of bleeding usually greater than 10 microns.
Barrier wall structure 30 utilizes two barrier wall structures 44 to surround a plurality of discharge spaces 48 with vertical barrier rib 38, so the bigger advantage of fluorescent material spreading area that can possess traditional closed barrier wall structure, and discharge space 48 is the isolation by two barrier wall structures 44, so the phase mutual interference that can effectively lower any two adjacent discharge spaces 48 is to prevent to misplace the generation of situations such as electricity.
Please also refer to Fig. 4 and Fig. 5, Fig. 4 is the schematic perspective view of barrier wall structure 60 of the plasma display of second preferred embodiment of the invention, and Fig. 5 is the top view of barrier wall structure 60 of the plasma display of second preferred embodiment of the invention.The place that second preferred embodiment is different from first preferred embodiment is, the length of the first horizontal barrier rib in second preferred embodiment adds that the length of the second horizontal barrier rib is less than the spacing distance between the vertical barrier rib, and first horizontal barrier rib of second preferred embodiment and the distance of the vertical direction between the second horizontal barrier rib are 0, so can obtain discharge space and the fluorescent material spreading area big than first embodiment.As Fig. 4 and shown in Figure 5, the barrier wall structure 60 of second preferred embodiment is formed at the upper surface top of an infrabasal plate 62, it includes many vertical barrier ribs 68 that are arranged in parallel and many first, second horizontal barrier ribs 70,72 that be arranged in parallel, and the upper surface of infrabasal plate 62 includes the upper surface that many address electrodes that are arranged in parallel 64 and an electric inducing layer 66 are covered in address electrode 64 and infrabasal plate 62 in addition.Wherein, infrabasal plate 62 also can be made of transparent even nontransparent rigidity material, and each address electrode 64 is parallel to vertical barrier rib 68 and be positioned at the middle of wantonly two adjacent vertical barrier ribs 68.
Similarly, has a spacing distance X2 between the vertical barrier rib 68 of each of second preferred embodiment and the adjacent vertical barrier rib 68, many the first horizontal barrier ribs 70 that are arranged in parallel are connected in a side of vertical barrier rib 68, right side for example, many the second horizontal barrier ribs 72 that are arranged in parallel then are connected in the opposite side of vertical barrier rib 68, for example left side, and each first horizontal barrier rib 70 and corresponding each second horizontal barrier rib 72 are staggered to constitute a plurality of pairs of barrier wall structures 74.Wherein, the first horizontal barrier rib 70 has one first length Y2, and the second horizontal barrier rib 72 has one second length Z2, and the first length Y2 adds that the second length Z2 is less than spacing distance X2, to constitute a gas passage 76, be beneficial to the carrying out of the follow-up manufacture craft of bleeding.In addition, the first length Y2 is different from the second length Z2, makes gas passage 76 not be positioned at directly over the address electrode 64, therefore can effectively avoid the generation of the overall collapse phenomenon in the conventional art.
Barrier wall structure 60 utilizes two barrier wall structures 74 to surround a plurality of discharge spaces 78 with vertical barrier rib 68, so the bigger advantage of fluorescent material spreading area that can possess traditional closed barrier wall structure, and discharge space 78 is by the isolation of two barrier wall structures 74, so the phase mutual interference that can effectively lower any two adjacent discharge spaces 78 is to prevent to misplace the generation of situations such as electricity.
Please also refer to Fig. 6 and Fig. 7, Fig. 6 is the schematic perspective view of barrier wall structure 90 of the plasma display of third preferred embodiment of the invention, and Fig. 6 is the top view of barrier wall structure 90 of the plasma display of third preferred embodiment of the invention.The place that the 3rd preferred embodiment is different from first preferred embodiment is that the first horizontal barrier rib in the 3rd preferred embodiment is connected with the second horizontal barrier rib, and it utilizes the height of junction low to form a gas passage.
As Fig. 6 and shown in Figure 7, the barrier wall structure 90 of the 3rd preferred embodiment is formed at the upper surface top of an infrabasal plate 92, it includes many vertical barrier ribs 98 that are arranged in parallel and many parallel first, second horizontal barrier ribs 100,102 that are connected, and includes the upper surface that many address electrodes that are arranged in parallel 94 and an electric inducing layer 96 are covered in address electrode 94 and infrabasal plate 92 on the upper surface of infrabasal plate 92 in addition.Wherein infrabasal plate 92 can be made of materials such as glass or quartz, and each address electrode parallel to each other 94 is positioned at the middle of any two vertical barrier ribs 98.
Similarly, has a spacing distance X3 between the vertical barrier rib 98 of each of the 3rd preferred embodiment and the adjacent vertical barrier rib 98, many the first horizontal barrier ribs 100 that are arranged in parallel are connected in the right side of vertical barrier rib 98, many the second horizontal barrier ribs 102 that are arranged in parallel then are connected in the left side of vertical barrier rib 98, and each first horizontal barrier rib 100 is staggered to constitute a plurality of pairs of barrier wall structures 104 with corresponding each second horizontal barrier rib 102.Wherein, the first horizontal barrier rib 100 has one first length Y3, the second horizontal barrier rib 102 has one second length Z3, and the first length Y3 adds the second length Z3 greater than spacing distance X3, and the first horizontal barrier rib 100 and the second horizontal barrier rib 102 are connected to each other.What be worth living meaning is that the first horizontal barrier rib 100 is successively decreased to the other end by an end that is connected in vertical barrier rib 98 with the height of the second horizontal barrier rib 102, to form a gas passage 106 in the place of being connected to each other, is beneficial to the carrying out of the follow-up manufacture craft of bleeding.In addition, the first length Y3 is different from the second length Z3, makes gas passage 106 not be positioned at directly over the address electrode 94, therefore can effectively avoid the generation of the overall collapse phenomenon in the conventional art.
Barrier wall structure 90 utilizes two barrier wall structures 104 to surround a plurality of discharge spaces 108 with vertical barrier rib 98, so the bigger advantage of fluorescent material spreading area that can possess traditional closed barrier wall structure, and discharge space 108 is by the isolation of two barrier wall structures 104, so the phase mutual interference that can effectively lower any two adjacent discharge spaces 108 is to prevent to misplace the generation of situations such as electricity.
It should be noted that, the barrier wall structure 60 of second preferred embodiment of the invention and the 3rd preferred embodiment and 90 manufacture method can be summarized as follows: a substrate at first is provided, then be coated with a slurry on a surface of this substrate, treat to form a barrier rib pattern again behind the slurry drying, and the barrier rib pattern includes many vertical barrier ribs that are arranged in parallel, many first horizontal barrier ribs that are arranged in parallel are connected in the opposite side that a side of vertical barrier rib and the second horizontal barrier rib that many are arranged in parallel are connected in vertical barrier rib, and wherein the first horizontal barrier rib and the corresponding second horizontal barrier rib are staggered to constitute a plurality of pairs of barrier wall structures.Carry out a sintering manufacture craft then with sintering barrier rib pattern, the first horizontal barrier rib and the second horizontal barrier rib in wherein two barrier wall structures are connected to each other, and the first horizontal barrier rib is successively decreased to the other end by an end that is connected in vertical barrier rib with the width of the second horizontal barrier rib, behind oversintering, make the win horizontal barrier rib and the second horizontal barrier rib contraction, and the shrinkage degree of barrier rib can be inversely proportional to the width of barrier rib, therefore can between the first horizontal barrier rib and the second horizontal barrier rib, form a gap to constitute as a Fig. 4 and a gas passage shown in Figure 5, or the horizontal barrier rib of winning is successively decreased to the other end by an end that is connected in vertical barrier rib with the height of the second horizontal barrier rib, to form as a Fig. 6 and a gas passage shown in Figure 7.
Please refer to Fig. 8 to Figure 11, Fig. 8 to Figure 11 is the barrier wall structure 120,130 of the plasma display of other preferred embodiment of the present invention and 140 schematic diagram.As Fig. 8 and shown in Figure 9, barrier wall structure 120 is similar to the barrier wall structure 60 of second preferred embodiment of the invention and the barrier wall structure 90 of the 3rd preferred embodiment, and it can utilize a gap or a lower height place between one first horizontal barrier rib 122 and the one second horizontal barrier rib 124 to form a gas passage (not shown).In addition, because balanced configuration is, the structural strength of barrier wall structure 120 can be better than barrier wall structure 60 and 90.
And the design of barrier wall structure 130 and barrier wall structure 140 can increase discharge space.As shown in figure 10, barrier wall structure 130 comprises many vertical barrier ribs 132 that are arranged in parallel, many first horizontal barrier ribs 134 that are arranged in parallel and many second horizontal barrier ribs 136 that are arranged in parallel, and the length of the first horizontal barrier rib 134 adds the spacing distance of the length of the second horizontal barrier rib 136 greater than any two vertical barrier ribs 132.In addition, each first horizontal barrier rib 134 is successively decreased to the other end by an end that is connected in each vertical barrier rib 132 with the width of each second horizontal barrier rib 136, to constitute a gas passage 138.
As shown in figure 11, barrier wall structure 140 comprises many vertical barrier ribs 142 that are arranged in parallel, many first horizontal barrier ribs 144 that are arranged in parallel and many second horizontal barrier ribs 146 that are arranged in parallel, and the length of the first horizontal barrier rib 144 adds the spacing distance of the length of the second horizontal barrier rib 146 greater than any two vertical barrier ribs 142.In addition, each first horizontal barrier rib 144 is successively decreased to the other end by an end that is connected in each vertical barrier rib 142 with the width of each second horizontal barrier rib 146, to constitute a gas passage 148.
Compared to conventional art, the barrier wall structure of plasma display of the present invention utilizes two barrier wall structures to form discharge space with vertical barrier rib, it has enough bleed-off passages, and traditional speed of evacuation is slow, bleeding not exclusively reaches the problems such as gas purity difference of enclosing to improve, and then improves the situation of discharge instability and plasma display shortening in useful life.Pair barrier wall structure of the present invention in addition can effectively reduce discharge space interference to each other, and can prevent to misplace electricity and overall situation generation of collapsing.In addition, the manufacture method of plasma display barrier wall structure of the present invention also is compatible with existing manufacture craft, does not need to increase extra step.
The above only is the preferred embodiments of the present invention, and is all according to equalization variation and modification that the present invention did, all should belong to covering scope of the present invention.