CN2515918Y - Carbon nano-tube plate type fluorescent source - Google Patents

Abstract

Disclosed is a flat type fluorescence light source with carbon nano tubes, which comprises a back panel, a fluorescence lighting layer and a front panel, wherein, the fluorescence lighting layer is arranged between the front panel and the back panel. Specifically, the inner surface layer of the back panel is provided with the carbon nano tubes as a cathode; the inner surface layer of the front panel is provided with a transparent conduction electrode. A luminescent layer is composed of the carbon nano tubes on the inner surface layer of the back panel and the transparent conductive layer with phosphor arranged in the inner surface layer of the front panel; the inner surface layer of the front panel is provided with separant for supporting the front panel and the back panel. The utility model adopts the vacuum microelectronic technique to make the field emission flat type fluorescence light source with high brightness, high efficiency and long service life using carbon nano tube field cold emission principle, thereby the cost is low, and the brightness is high with vivid colors.

Description

The plate fluorescence light source of carbon nano-tube

Technical field

The utility model relates to a kind of light source, and especially a kind of carbon nano-tube causes luminous ultra-thin plate fluorescence light source.

Background technology

In practical light source field, fluorescence light source (VFLS) belongs to green ecological illumination, its luminous dependence electron stream activating fluorescent powder and produce visible light, luminosity height on characteristic spectrum, the visual angle is wide, the light efficiency height, can obtain panchromatic, and operating temperature range is wide, does not contain the infrared spectrum that thermal effect causes, and is luminous by electron beam control, response time is fast, simple in structure, power saving meets environment protection requirement.VFLS is generally the electric field-activate mercury vapour in the prior art, produces ultraviolet ray excited light-emitting phosphor.Extra electric field quickens mercury atom by metal electrode, produces ultraviolet ray, and fluorescent material absorbs ultraviolet ray and sends visible light.Before the light that penetrates of light emitting-type VFLS by luminous laminating mainly that face of front glass inner surface sends, also contain the light that is not absorbed in the phosphor powder layer volume with scattering.The light that another VFLS structure can utilize phosphor screen to send back to that flour layer of front glass inner surface simultaneously, this structural requirement electron source has certain optical clarity, also must near the glass plate of back optical mirror be set.Fig. 1 is the structural profile schematic diagram of the dull and stereotyped diode VFLS of a kind of preceding light emitting-type.

Owing to increase day by day for ultra-thin, the high brightness of fluorescence light source, the requirement of the saving energy, at present the planar light source of main flow be mercurous fluorescence light source they utilize mercury vapour, produce ultraviolet ray excited light-emitting phosphor.Mercury will cause very big pollution to environment, be unfavorable for environmental protection, and cost is higher, damage easily.

The utility model content

The purpose of this utility model is to provide a kind of carbon nano-tube plate fluorescence light source, its brightness height, bright in luster, ultra-thin, cost is low, the fluorescence area is big.

The purpose of this utility model is achieved in that the plate fluorescence light source of a kind of carbon nano-tube, it comprises backplate, fluorescence radiation layer and front panel, the involutory formation fluorescence light source of front panel and backplate body wherein, the fluorescence radiation layer is arranged between front panel and the backplate.The backplate internal surface layer is provided with the carbon nano-tube as negative electrode, and is provided with electrode leads to client, and the front panel internal surface layer is provided with transparency conductive electrode, fluorescent material, and the fluorescent material of carbon nano-tube on the backplate internal surface layer and front panel internal surface layer constitutes the fluorescence radiation layer.

The front panel internal surface layer is provided with silk screen process, plays the separaant that supports front panel and backplate effect.Separaant is arranged between the carbon nano-tube slit of discharge, and separaant has spacing each other.Separaant is material particularly, is transparent glass powder with low melting point material.As required, and be the guarantee precision, separaant can be made as sandwich construction.

Backplate is glass baseplate layer or ceramic base material layer, which is provided with conductive layer, perhaps directly adopts low-resistance conductive glass.Carbon nano-tube is that oriented growth is made on the backplate conductive layer.

Front panel is transparent substrate layer.

The encapsulation reserved opening place, side of front panel and the involutory formation fluorescence light source of backplate body is provided with parallel blast pipe.Be provided with getter in the blast pipe.

The utility model adopts vacuum microelectronics technique, utilizes refrigeration emission principle in carbon nano-tube field to make high brightness, high efficiency, long-life field emission flat type fluorescence light source, and its cost is lower and bright in luster.

Description of drawings

Fig. 1 is the whole perspective view of the utility model;

Fig. 2 is decomposing state front panel of the present utility model, backplate structural representation;

Fig. 3 is the utility model separaant planar structure schematic diagram;

Fig. 4 is the utility model bus planar structure schematic diagram.

Embodiment

Below in conjunction with accompanying drawing and specific embodiments the utility model is done detailed description further.

Referring to Fig. 1-4, the utility model is the plate fluorescence light source of a kind of carbon nano-tube, it comprises backplate 1, fluorescence radiation layer and front panel 2, the involutory formation fluorescence light source of front panel 21 and backplate body wherein, and the fluorescence radiation layer is arranged between front panel 2 and the backplate 1.Backplate 1 internal surface layer is provided with the carbon nano-tube 12 as negative electrode, and be provided with electrode leads to client 11, front panel 2 internal surface layers are provided with conductive layer 21, fluorescent material 22, and the fluorescent material 22 of carbon nano-tube 12 on backplate 1 internal surface layer and front panel 2 internal surface layers constitutes the fluorescence radiation layer.Particularly, front panel 2 is transparent substrate layer, and backplate 1 is glass baseplate layer or ceramic base material layer, which is provided with conductive layer, perhaps directly adopts low-resistance conductive glass.Carbon nano-tube 12 is for to make along oriented growth on the bus that erodes away on backplate 1 conductive layer.

The encapsulation reserved opening place, side of front panel 2 and backplate 1 involutory formation fluorescence light source body is provided with parallel blast pipe 3, can ensure vacuumizing and ultra-thin requirement of fluorescence light source body like this, and be unlikely to because the volume of blast pipe 3 causes thickening of fluorescence light source body.Be provided with getter 4 in the blast pipe 3, not only can increase the effective area of fluorescence light source body like this, and by using getter further to satisfy the vacuum requirements of fluorescence light source body, the useful life of improving the fluorescence light source body.

For ensureing, in vacuumizing for large-area fluorescence light source body interior, can have certain bearing capacity between front panel 2 and the backplate 1, front panel 2 internal surface layers are provided with and play the separaant 23 that supports front panel 2 and backplate 1 effect.Separaant 23 is adopted as transparent glass powder with low melting point material.Separaant 23 concrete shapes meet carbon nano-tube 12 slits of discharge, therefore are arranged between carbon nano-tube 11 slits of discharge, and separaant 23 has spacing mutually.For ensureing precision, separaant 23 adopts silk screen process to make, and is sandwich construction according to different thickness requirement separaant 23.

In the present embodiment, manufacturing of backplate 1 is that low-resistance ito glass (perhaps plate glass, ceramic substrate) is cut into appropriate size, cleans degreasing and disintegrating slag, stamps the silver slurry as exit 11 with the method for silk screen printing, and curing.With electrophoresis, stencil or thermal decomposition method oriented growth of carbon nanometer tube 12 as negative electrode.

Concrete steps comprise:

1, low-resistance ITO plate glass (perhaps making plate glass, the ceramic substrate of conductive layer) is cut into appropriate size;

2, clean degreasing, disintegrating slag;

3, stamp the silver slurry as exit with the silk-screen method;

4, solidify;

5, use electrophoresis, stencil or thermal decomposition method oriented growth of carbon nanometer tube as negative electrode.

Manufacturing of front panel 2 comprises following concrete steps:

1, repeats backplate 2 and make preceding four steps;

2, stamp some transparent low glass powders as separaant 23 with the silk-screen method;

3, advance the stove sintering, if separaant 23 insufficient heights can repeat the step;

4, coat fluorescent material 22;

5, low glass powder is coated with onboard as perimeter seal material 5;

6, solidify.

During assembling, front panel 2 and backplate 1 are aimed at, and are contained in the anchor clamps, coat low glass powder.Advance the stove sintering, dress getter 4 in blast pipe 3, exhaust.When being vented to the limit, seal.Getter 4 is activated, under the unnecessary blast pipe envelope of torch.Thereby finish whole manufacturing process of the present utility model.

It should be noted last that, above embodiment is only unrestricted in order to explanation the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the utility model, and not breaking away from spirit and scope of the present utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (10)

1, the plate fluorescence light source of a kind of carbon nano-tube, it comprises backplate, fluorescence radiation layer and front panel, the involutory formation fluorescence light source of front panel and backplate body wherein, the fluorescence radiation layer is arranged between front panel and the backplate, it is characterized in that: described backplate internal surface layer is provided with the carbon nano-tube as negative electrode, and be provided with electrode leads to client, the front panel internal surface layer is provided with transparency conductive electrode, fluorescent material, and the fluorescent material of carbon nano-tube on the backplate internal surface layer and front panel internal surface layer constitutes the fluorescence radiation layer.

2, the plate fluorescence light source of carbon nano-tube according to claim 1 is characterized in that: the front panel internal surface layer is provided with silk screen process, plays the separaant that supports front panel and backplate effect.

3, the plate fluorescence light source of carbon nano-tube according to claim 2 is characterized in that: separaant is arranged between the carbon nano-tube slit of discharge, and separaant has spacing each other.

4, according to claim 2 or the plate fluorescence light source of 3 described carbon nano-tube, it is characterized in that: separaant is dark glass powder with low melting point material.

5, the plate fluorescence light source of carbon nano-tube according to claim 1 is characterized in that: backplate is glass baseplate layer or ceramic base material layer, which is provided with conductive layer.

6, the plate fluorescence light source of carbon nano-tube according to claim 1 is characterized in that: backplate is a low-resistance conductive glass.

7, according to claim 1 or the plate fluorescence light source of 6 or 7 described carbon nano-tube, it is characterized in that: carbon nano-tube is that oriented growth is made on the backplate conductive layer.

8, the plate fluorescence light source of carbon nano-tube according to claim 1 is characterized in that: front panel is transparent substrate layer.

9, the plate fluorescence light source of carbon nano-tube according to claim 1 is characterized in that: the encapsulation reserved opening place, side of front panel and the involutory formation fluorescence light source of backplate body is provided with parallel blast pipe.

10, the plate fluorescence light source of carbon nano-tube according to claim 9 is characterized in that: be provided with getter in the blast pipe.

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