CN1953131A - Pole pattern design of field emission display - Google Patents
Pole pattern design of field emission display Download PDFInfo
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- CN1953131A CN1953131A CN 200510116219 CN200510116219A CN1953131A CN 1953131 A CN1953131 A CN 1953131A CN 200510116219 CN200510116219 CN 200510116219 CN 200510116219 A CN200510116219 A CN 200510116219A CN 1953131 A CN1953131 A CN 1953131A
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Abstract
The invention relates to an electrode picture design of field emission electrode base plate. Wherein, said electrode base plate comprises a display area and a non-display area; one conductive layer and an idle electrode are formed inside the display area and non-display area, to reduce the stress integration of non-display area; the idle electrode is one of electrode layer material or made from the material near the thermal expansion factor of said electrode layer material. With said design, it can improve the stress integration.
Description
Technical field
The present invention is relevant with a kind of battery lead plate of field emission apparatus, and is particularly relevant with the electrode pattern design on a kind of field emission apparatus battery lead plate.
Background technology
In recent years, pursue lighter, thin, short, little plane Display Technique and replaced the heavy cathode ray tube (CRT) Display Technique of tradition gradually, become one of the opto-electronics the most fast of growing up in recent years.At present, in numerous plane Display Techniques, lcd technology has been widely by one of main flow Display Technique that market received.Yet, since such Display Technique exist can't self luminous shortcoming, therefore often must pay the luminance standard that extra cost reaches traditional C RT Display Technique or other self-luminous Display Techniques aspect display brightness and the color.Yet under the demand of product maximization and parization, the quality of lcd technology and cost face the challenge of other self-luminosity Display Techniques just gradually.
(Field Emission Display FED) is the emerging plane Display Technique of similar traditional C RT display to Field Emission Display.Because Field Emission Display has self luminous characteristic, therefore need the complicated and expensive backlight assembly of collocation in addition unlike lcd technology.Moreover, Field Emission Display not only can produce the display quality that is similar to CRT brightness, and under suitable electron emission source design, only need relatively low operating voltage just can produce the display brightness suitable with CRT, have the advantage of low driving power with this; And with respect to lcd technology, Field Emission Display there is no the problem on visual angle and the answer speed.In addition, it is luminous that Field Emission Display adopts the phosphor powder technology, and operating temperature range is extensive compared to liquid crystal material, so Field Emission Display also has preferable environment resistant.
See also shown in Figure 1ly, it is the schematic diagram of the common Field Emission Display structure of explanation.As shown in FIG., this Field Emission Display 100 mainly comprises two electrode base boards, that is a positive plate 10 and a minus plate 20; Wherein, this positive plate 10 is made of a glass substrate 12, scribbles a fluorescent layer 16 on it, is made of another glass substrate 22 on this minus plate 20, and 22 also comprise a plurality of electron emission source arrays 26 on this glass substrate, in order to divergent bundle 25.As shown in fig. 1, all has a conductive layer 14,24 on this positive plate 10 or this minus plate 20, to form conductive electrode.And for the position of controlling this electron beam 25 these fluorescent layers 16 of bump and wiring and other considering on electrically, the conductive electrode with specific pattern (patterned) is formed at respectively on the conductive layer 14,24 of this positive plate 10 and this minus plate 20.Conductive electrode on this positive plate 10 also can be distinguished into transparency electrode and auxiliary (wiring) electrode (not being shown among the figure), wherein this transparency electrode is in order to provide the positive potential of electric field, luminous to attract electron beam 25 these fluorescent layers 16 of bump, the electrode that this auxiliary electrode is then formed for low resistivity material, except that the purpose that provides circuit signal to transmit, also with the purpose that separates display pixel (pixel), to replace traditional light blocking layer.And on this minus plate 20, this conductive electrode then can be divided into gate electrode 28 and lead electrode, and wherein mainly in order to increase electric field, this lead electrode is then in order to form this electron emission source array 26 for this gate electrode.
On the other hand, observe aforesaid electrode base board from vertical view, no matter be positive plate 10 or minus plate 20 (shown in Fig. 2 (A) or Fig. 2 (B)), can be to light emitting region that should fluorescent layer 16 and be distinguished into a viewing area 10a, 20a and a non-display area 10b, 20b, wherein the conductive electrode among this viewing area 10a, the 20a is for the imaging of each pixel of controlling display and have the electrode pattern (as Fig. 2 (A) or (B) shown in the electrode pattern on right side) of comparatively dense and symmetrical distribution.Then be the hollow out graphics field that is designed to netted, block type electrode or space shape in non-display area 10b, 20b, wherein this netted or block type electrode is in order to conduct electricity purpose, in order to link with drive circuit; This hollow out graphics field then is the installing getter space of reserving for the vacuum degree of maintaining field emission display.
Because aforesaid electrode base board has different electrode patterns in this viewing area with this non-display area, thereby when the making of this electrode base board is handled through high-temperature process, regular meeting is different because of the material coefficient of electric conducting material and glass substrate, makes glass substrate that deformation take place in manufacturing process easily; In addition, asymmetric electrode pattern distributes and also tends to the phenomenon that causes stress to concentrate on this non-display area, thereby in follow-up operation, when if the glass substrate on this electrode base board suffers from lattice damage or applied stress when vacuumizing or encapsulating (as), may cause the phenomenon of breaking glass panel.Though the residual stress on the glass substrate can be eliminated by the operation of high annealing, yet the high annealing operation not only must expend extra cost and time, and this operation also can't be improved formed deflection on the glass substrate simultaneously.Therefore how to improve the electrode pattern design of non-display area, make the interior residual stress concentration phenomenon of non-display area be minimized or transfer to other zones, make the big key that yield promotes for the Field Emission Display electrode base board in fact.
In order to overcome above-mentioned problem conscientiously, the present invention proposes a kind of brand-new field emission electrode board structure, by a kind of new electrode pattern design is provided in the non-display area of electrode base board, to solve the phenomenon that residual stress is concentrated, and reduce deflection and reduce the probability that breaking glass panel takes place, to promote the making yield of Field Emission Display.
Summary of the invention
In order to overcome above-mentioned problem conscientiously, the present invention proposes a kind of brand-new field emission electrode board structure, by a kind of new electrode pattern design is provided in the non-display area of electrode base board, to solve the phenomenon that residual stress is concentrated, and reduce deflection and reduce the probability that breaking glass panel takes place, to promote the making yield of Field Emission Display.
The electrode base board of a kind of emission (field emission) device according to an aspect of the present invention, comprise a viewing area and a non-display area on it, this electrode base board is characterised in that an electrode layer, be formed in this viewing area, and one vacant (dummy) structure, be formed in this non-display area, wherein, this vacant structure system is by being formed with the approaching material of the thermal coefficient of expansion of this electrode layer material.
According to above-mentioned conception, wherein this electrode layer material differs scope less than 10-5/ ℃ with the thermal coefficient of expansion of this vacant structural material.
According to above-mentioned conception, wherein this electrode base board is a positive plate.
According to above-mentioned conception, wherein this electrode layer also comprises a transparency electrode and a link electrode.
According to above-mentioned conception, wherein the material of this vacant structure be selected from this transparency electrode and this link electrode one of them.
According to above-mentioned conception, wherein this electrode layer is graphical (patterned) structure with this vacant structure.
According to above-mentioned conception, wherein the figure of this vacant structure is identical with the figure of this conductive layer.
According to above-mentioned conception, wherein the figure of this vacant structure is the bulk figure in no space.
According to above-mentioned conception, wherein the figure of this vacant structure is latticed figure.
According to above-mentioned conception, wherein this vacant structure and this electrode layer have identical distance and live width.
According to above-mentioned conception, wherein this vacant structure is not for having vacant (dummy) electrode that is electrically connected characteristic.
According to above-mentioned conception, wherein this electrode base board is a minus plate.
The electrode base board of a kind of emission (field emission) device according to a further aspect of the invention, this electrode base board comprises a viewing area and a non-display area, wherein, form an electrode layer and a sky (dummy) electrode in this viewing area and this non-display area respectively, wherein, the material of this vacant electrode is selected from this electrode layer material, concentrates with the stress that reduces this non-display area.
According to above-mentioned conception, wherein this electrode base board be a positive plate and a minus plate one of them.
According to above-mentioned conception, wherein this electrode layer is graphical (patterned) structure with this vacant electrode.
According to above-mentioned conception, wherein the figure of this vacant electrode is identical with the figure of this electrode layer.
According to above-mentioned conception, wherein the figure of this vacant electrode is the bulk figure in no space.
According to above-mentioned conception, wherein the figure of this vacant electrode is latticed figure.
According to above-mentioned conception, wherein this vacant electrode and this electrode layer have identical distance and live width.
The manufacture method of a kind of emission (field emission) electrode base board is proposed according to another aspect of the invention, this manufacture method comprises the following step at least: a substrate (a) is provided, (b) comprises a viewing area and a non-display area at least with being divided on this substrate; And (c) in this viewing area and this non-display area, form the figure (patterns) an of electrode layer and one vacant (dummy) structure respectively.
According to above-mentioned conception, wherein step (c) is to utilize same mask (mask) and form this electrode layer and this vacant structure simultaneously.
According to above-mentioned conception, wherein step (c) is to utilize different masks and form this electrode layer and this vacant structure in regular turn.
By the detailed description that following conjunction with figs. is carried out preferred embodiment, understanding the present invention that can be more deep:
Description of drawings
Fig. 1 is the schematic diagram of the existing Field Emission Display structure of expression.
It (B) is the positive plate of the existing Field Emission Display of expression and the electrode structure distribution map on the minus plate that Fig. 2 (A) reaches.
It (B) is the positive plate of expression Field Emission Display of the present invention and the electrode structure distribution map on the minus plate that Fig. 3 (A) reaches.
Fig. 4 (A) and (B) be the stress distribution analysis chart of the positive plate upper electrode arrangement of the positive plate upper electrode arrangement of the existing Field Emission Display of expression and Field Emission Display of the present invention.
Fig. 5 (A) and (B) be the stress distribution analysis chart of the minus plate upper electrode arrangement of the minus plate upper electrode arrangement of the existing Field Emission Display of expression and Field Emission Display of the present invention.
Embodiment
Seeing also Fig. 3 (A) and (B), is the distribution map that the surface electrode structure of the positive plate of field emission apparatus of the present invention and minus plate is described respectively.As shown in FIG., no matter be positive plate 10 or the minus plate 20 shown in Fig. 3 (B) shown in Fig. 3 (A), it all can similar existing electrode base board framework be distinguished into a viewing area 10a, 20a and a non-display area 10b, 20b that should the fluorescent layer light emitting region.Yet, avoid because the uneven distribution of electrode pattern in order to make the glass substrate on this positive plate 10 or the minus plate 20, unfavorable factor such as cause that irregular deflection or stress are concentrated, the present invention is by the non-display area 10b at this positive plate 10 and this minus plate 20, form and this viewing area 10a respectively among the 20b, vacant (dummy) structure of the identical or analogous shape of electrode pattern in the 20a (as Fig. 3 (A) or (B) shown in the pattern on right side) is so that this non-display area 10b, 20b and this viewing area 10a, the phenomenon that the stress of the adjacent of 20a is concentrated can reduce or be passed to other zones equably.In a preferable specific embodiment, this vacant structure can be not have vacant (dummy) electrode that is electrically connected characteristic.In addition, the material of this vacant structure or vacant electrode also can select the hot expansion system with this electrode layer material to differ scope less than 10-5/ ℃ material, need not be defined in and this electrode layer identical materials.In addition, the pattern of this vacant structure or electrode is visible space or other demands and be designed to not have the space bulk figure in (gap) also, and reaches equilibrium stress by the adjustment of area and thickness parameter.In a preferred embodiment, when in this non-display area, making the vacant structure of bulk figure in no space, its thickness be between the viewing area thickness of electrode 1/2～1/5 between.In addition, in this positive plate, comprise a transparent electrode layer or auxiliary (wiring) electrode layer in this electrode layer at least, therefore, in another specific embodiment, the pattern of this vacant structure also be designed to this viewing area in arbitrary electrode layer pattern or the identical structure of material; Or this vacant structure or electrode also can be designed to this viewing area in transparent or figure that auxiliary electrode layer has identical layout or live width.In addition, this vacant structure or electrode also can be designed to the symmetrical pattern of other latticed or hole shapes that are symmetrically distributed, and can reach the stress collected state that reduction can be shifted this non-display area equally.
Please continue to consult shown in Fig. 4 (A) and Fig. 4 (B), it represents the stress analysis figure of the anode plate structure of corresponding diagram 2 (A) and Fig. 3 (A) respectively.By can learning from the stress analysis image of Fig. 4 (A), the phenomenon that stress is concentrated be prevalent in this positive plate around and the adjacent junction of this viewing area and this non-display area.Yet, through (structure shown in Fig. 3 (A)) after forming identical with this viewing area or similar electrode pattern at non-display area, from the stress analysis image of Fig. 4 (B) as can be seen, aforementioned stress in this viewing area and this non-display area junction concentrates situation to be able to obvious improvement.Same, Fig. 5 (A) and Fig. 5 (B) represent the minus plate structure of corresponding diagram 2 (B) and Fig. 3 (B) respectively; And from the stress analysis figure of Fig. 5 (A) and Fig. 5 (B), the stress that also can observe non-display area concentrates situation to be improved because of forming behind identical with this viewing area or the similar electrode pattern within it.
Because the present invention can design according to the pattern of arbitrary electrode layer in this viewing area (transparent electrode layer or link electrode layer) at electrode pattern designed on this non-display area, therefore, in manufacture process, the vacant structure of non-display area can define the pattern of vacant structure simultaneously in the production process of arbitrary electrode layer; And in other specific demands, for example in hole shape, bulk, the special graph such as latticed, then can use the graphical processing procedure in another road to form in regular turn.Yet, no matter be to use the vacant structure that forms non-display area in the identical or different graphical process, these operations are compatible in the existing electrode base board processing step fully, therefore need not change existing electrode base board technology, can effectively reach purpose of the present invention.
Above-described only in order to preferred embodiment of the present invention to be described, however scope of the present invention ought not be subject to this above-mentioned every embodiment.Therefore, the present invention must be made the variation or the replacement of all equivalences according to this by the personage of skilled, yet the variation of these equivalences or replacement all should be included in appended the application's claim institute restricted portion.
Claims (10)
1. the electrode base board of a field emission apparatus comprises a viewing area and a non-display area on it, it is characterized in that:
One electrode layer is formed in this viewing area; And
One vacant electrode is formed in this non-display area, and wherein, the material of this vacant electrode is to be selected from this electrode layer material, concentrates with the stress that reduces this non-display area.
2. electrode base board as claimed in claim 1 is characterized in that:
This electrode base board be a positive plate and a minus plate one of them; And/or
This electrode layer is a patterned structures with this vacant electrode.
3. electrode base board as claimed in claim 1, the figure that it is characterized in that this vacant electrode is identical with the figure of this electrode layer or be the bulk figure in no space.
4. electrode base board as claimed in claim 1 is characterized in that:
The figure of this vacant electrode is latticed figure; And/or
This vacant electrode and this electrode layer have identical distance and live width.
5. the electrode base board of a field emission apparatus comprises a viewing area and a non-display area on it, it is characterized in that:
One electrode layer is formed in this viewing area; And
One vacant structure is formed in this non-display area, and wherein, this vacant structural material is by being formed with the approaching material of the thermal coefficient of expansion of this electrode layer material.
6. electrode base board as claimed in claim 5 is characterized in that this electrode layer material and the thermal coefficient of expansion of this vacant structural material differ scope less than 10-5/ ℃.
7. electrode base board as claimed in claim 5 is characterized in that:
This electrode base board is a positive plate;
This electrode layer also comprises a transparency electrode and a link electrode; And/or
The material of this vacant structure be selected from the material of this electrode layer and this wiring layer material one of them.
8. electrode base board as claimed in claim 5 is characterized in that:
This vacant structure is not for having the vacant electrode that is electrically connected characteristic; And/or
This electrode base board is a minus plate.
9. the manufacture method of a field emission electrode substrate, it comprises following steps:
(a) provide a substrate,
(b) comprise a viewing area and a non-display area at least with being divided on this substrate; And
(c) in this viewing area and this non-display area, form the figure of an electrode layer and a vacant structure respectively.
10. as described manufacture method as described in the claim 9, it is characterized in that step (c) is to form this electrode layer and this vacant structure simultaneously in graphical operation, or not forming this electrode layer in regular turn in the graphical operation of people having a common goal reaches this vacant structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510116219 CN1953131A (en) | 2005-10-21 | 2005-10-21 | Pole pattern design of field emission display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510116219 CN1953131A (en) | 2005-10-21 | 2005-10-21 | Pole pattern design of field emission display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1953131A true CN1953131A (en) | 2007-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510116219 Pending CN1953131A (en) | 2005-10-21 | 2005-10-21 | Pole pattern design of field emission display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1953131A (en) |
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2005
- 2005-10-21 CN CN 200510116219 patent/CN1953131A/en active Pending
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Open date: 20070425 |