CN2528105Y

CN2528105Y - Lead wire for field emission display device

Info

Publication number: CN2528105Y
Application number: CN 02209864
Authority: CN
Inventors: 张传萍
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date: 2002-01-21
Filing date: 2002-01-21
Publication date: 2002-12-25
Anticipated expiration: 2012-01-21

Abstract

The utility model provides a lead wire of a field emission display device, which comprises an anode plate 1, an electrode strip 2, a substrate 3, a cathode plate 4, an electrode strip 5 and a metal block 6. The electrode strip prepared on the anode plate is pressed and connected with the metal block, so that the steps of the lead wire is reduced and the problems of non-uniform welding, bonded conductive adhesive with air leakage in different degrees so that the short circuit is easy to happen are solved. The operation of the utility model is not limited by 100 Mu m, the electrode can keep good contacting only with the metal block in a certain thickness being pressed and connected without problem of material gas releasing, and the utility model can be used as a separating column between the cathode and the anode plates of the vacuum flat panel display device. The utility model simplifies the packaging steps of an FED, the problem that the high request of the choice of the conducting material used in the background technology lead wire is avoided, and no problems like the matching of elastic coefficient and thermal expansion exist when a screen is sealed. The packaged lead wire is easy to operate and is more beautiful.

Description

A kind of lead-in wire of field emission display

Technical field: the utility model belongs to the field emission display technical field, relates to the improvement to the field emission display lead-in wire.

Background technology: an emission is to be electron source with the cold cathode array, and all one's own cold cathode array electronic of each pixel emission source has very strong non-linear voltage-current characteristics.Comprise positive plate 1, lead 2, substrate 3, minus plate 4,

electrode strip

5,6, preparation has electrode strip 5 on substrate 3 encapsulating faces, preparation has electrode strip 6 on minus plate 4, connects with lead 2 between electrode strip 5 and the electrode strip 6, adopts solder technology or conductive adhesive.

Field emission mechanism decision display device must keep a quite high vacuum degree, meanwhile, distance between the moon-anode also is limited in quite little scope, like this, in the manufacturing process of field emission display, very high to the requirement of sealing-in, exhaust, technology such as cool down, technical difficulty is very big, cathode leg particularly is because cathode substrate and positive plate spacing about 100 μ m, at first just face very easily short circuit problem of yin, yang from cathode leg under so little gap; Secondly, the selection that electrode material faces require be: ultra-thin, do not discharge gas, its thermal coefficient of expansion and coefficient of elasticity and will mate rare impurity with seal, sealing materials and produce secondary electron or the like; And go between, seal the matching problem that exists material coefficient of thermal expansion coefficient, coefficient of elasticity behind the screen.Lead-in wire needed for two steps: substrate 3 is connected with lead 2, and lead 2 is connected with minus plate 4, all finishes in the field emission display screen.If the second step lead-in wire (lead 2-minus plate 4) is placed on the screen of encapsulation when operating outward, then lead 2 must adopt thermal coefficient of expansions, coefficient of elasticity matched materials with minus plate 4.

Detailed content: the purpose of this utility model is some technical parameters that reasons such as the solder joint of many, the easy short circuits of lead-in wire step, lead in the solution background technology is inhomogeneous, material outgassing have reduced device, it has very high requirement to the selection of conductor material, the selection that is conductor material must consider that its rare impurity easily produces the problem of secondary electron, also require the problems such as coupling of ultra-thin, thermal coefficient of expansion, coefficient of elasticity and minus plate and positive plate, will provide a kind of lead-in wire of field emission display.

For this reason, the utility model adopts field emission display and prepares some strip electrode bars 2 at the two ends of positive plate 1 encapsulating face, again substrate 3 is placed on the minus plate 4, preparation has some strip electrode bars 5 on substrate 3 encapsulating faces, on electrode strip 5, be fixed with certain thickness some blocks of metal derbies 6, positive plate 1 and minus plate 4 is involutory, vacuumize and be packaged together.

The utility model provides a kind of lead-in wire of field emission display, be the electrode strip that on positive plate, prepares and the crimping of metal derby, then the lead-in wire step substrate-lead of background technology, the secondary connection of lead one minus plate are simplified to once connection, make the lead-in wire step reduce, the welding of having avoided the employing welding to be brought is inhomogeneous, if adopt bonding way, all there is the then easy problem of short-circuit of excessive gas phenomenon in various degree in its conducting resinl; The utility model is not subjected to the restriction of 100 μ m in operation, only need to adopt certain thickness metal derby crimping, promptly can keep the electrode contact good, plays the insulated column effect between the evacuated flat panel display device yin, yang pole plate simultaneously; The problem that does not have material outgassing.Because the utility model adopts the structure of metal derby and cathode electrode, has simplified the FED encapsulation step, avoid selecting in the background technology lead-in wire the demanding problem of electric conducting material, there is not the problem of coupling coefficient of elasticity, thermal coefficient of expansion during the envelope screen yet.Encapsulation is finished later lead-in wire work and is also become easy and attractive in appearance.

Description of drawings:

Fig. 1 is the background technology structural representation

Fig. 2 is a kind of example structure schematic diagram of the utility model

Comprise among embodiment such as Fig. 2: positive plate 1, electrode strip 2, substrate 3, minus plate 4, electrode strip 5, metal derby 6, positive plate 1 adopts electro-conductive glass; Electrode strip 2 and electrode strip 5 are selected its number according to the design needs; Substrate 3 adopts silicon substrate; Minus plate 4 adopts electro-conductive glass; Its number of metal derby 6 is identical with electrode strip 5 threes with electrode strip 2, its thickness than the big 10 μ m of yin, yang anode-cathode distance about.

Claims

1, a kind of lead-in wire of field emission display, comprise positive plate 1, substrate 3, minus plate 4, it is characterized in that: also comprise electrode strip 2, electrode strip 5, metal derby 6, employing is prepared some strip electrode bars 2 at the two ends of positive plate 1 encapsulating face, substrate 3 places on the minus plate 4, preparation has some strip electrode bars 5 on substrate 3 encapsulating faces, is fixed with certain thickness some blocks of metal derbies 6 on electrode strip 5, and positive plate 1 and minus plate 4 are packaged together.