CN2485912Y

CN2485912Y - Electroluminescent sheets for emitting white color light

Info

Publication number: CN2485912Y
Application number: CN 01228051
Authority: CN
Inventors: 殷熹
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-12
Filing date: 2001-06-12
Publication date: 2002-04-10
Anticipated expiration: 2011-06-12

Abstract

The utility model provides an electro luminescent emitting pure white light, comprising an electro luminescent emitting blue light and orange and white coatings on the electro luminescent emitting blue light, the three form a luminescent emitting pure white light. The utility model has new concept, compact structure and simple technology, with a white surface which can emit pure white light; moreover, when the power voltage and frequency change in a comparatively large range, small influence is produced to the emitted white light. If as the liquid crystal display screen, the backlight of the picture can reflect the original color.

Description

The electroluminescent sheet of sending out light pure white

The utility model relates to the electroluminescent chip technology, specifically is the electroluminescent sheet that send pure white light of a kind of surface color for white.

At present, the electroluminescent sheet that emits white light that circulates on the market is that field with the green glow that turns blue causes fluorescent material and adds and to make after red pigment is mixed mostly.Surface color is redness.Surface color when backlight, can demonstrate pink rather than white at liquid crystal surfactant and picture surface, thereby make the colour picture variable color as LCD and picture for red causing with this kind light tiles just.The scope of application of this light tiles is restricted greatly.The white light that this in addition light tiles is sent is pure inadequately, and along with the variation of additional power source electric voltage frequency, it is impure more that glow color can become.

Another method of the electroluminescent sheet that emits white light is to adopt the fluorescent material that emits white light directly to make light tiles, because the light that the light tiles that emits white light that this fluorescent material is made is sent is very impure, so there be limited evidence currently of has the people to use.

The purpose of this utility model is to overcome the above-mentioned defective of prior art, the electroluminescent sheet of sending out white light pure that provides that electroluminescent sheet that a kind of employing turns blue coloured light makes.

The electroluminescent sheet of sending out light pure white of the present utility model comprises light tiles, and it is characterized in that: described light tiles is the electroluminescent sheet (3) of blue light-emitting, is provided with orange coating (2) above the electroluminescent sheet of blue light-emitting (3); Be provided with white coating (1) above the orange coating (2).

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is an example structure schematic diagram of the present utility model;

Fig. 2 is the sectional schematic diagram of Fig. 1.

As shown in Figure 1, (3) be the electroluminescent sheet of blue light-emitting, be provided with orange coating (2) above the electroluminescent sheet of blue light-emitting (3), orange coating (2) can adopt the orange pigment of orange ink, orange paint and preparation to apply and make, wherein (4), (5) are two electrodes of electroluminescent sheet, add that between two electrodes alternating voltage can send white light.

In order to make light tiles send purer white light, one deck white coating (1) also is set on orange coating (2), white coating (1) but coating that the whitewash of white ink coating, Liquid Paraffin lacquer coat and preparation applies.The white light that the electroluminescent sheet that emits white light of this structure sends is purer.

Fig. 2 is the sectional schematic diagram of Fig. 1.Wherein each several part is: white coating (1), orange coating (2), transparency conducting layer (3-1), field cause phosphor powder layer (3-2), barium titanate insulating barrier (3-3), conductive layer (3-4), electrode (4) and electrode (5).The transparency conducting layer of this electroluminescent sheet (3-1) adopts nesa coating or transparent conducting glass (ITO) etc., and the field causes phosphor powder layer (3-2) and adopts the field of blue light-emitting to cause fluorescent material, and conductive layer (3-4) can be silver or carbon or aluminium or copper layer.Adopt traditional handicraft to be made into blue light-emitting electroluminescent sheet (3), be coated with the last layer orange ink on its surface and make the electroluminescent sheet that emits white light.

Also can be coated with last layer orange ink layer (2) on blue light-emitting electroluminescent sheet (3) surface, on orange ink layer (2), be coated with white ink layer layer (1) then again, the orange ink layer is hidden, make the electroluminescent sheet that emits white light that the surface is white in color, the white light that this light tiles can be sent out pure.

The utility model is novel, compact conformation, manufacture craft is simple, surface color is a white, can send pure white light, and supply voltage, when frequency changes in the larger context, very little to the influence of the white light that sends.As LCD, the backlight of picture can reflect original color.

Claims

1, a kind of electroluminescent sheet of sending out light pure white comprises light tiles, and it is characterized in that: described light tiles is the electroluminescent sheet (3) of blue light-emitting, is provided with orange coating (2) above the electroluminescent sheet of blue light-emitting (3).

2, the electroluminescent sheet of sending out light pure white according to claim 1 is characterized in that: be provided with white coating (1) above the described orange coating (2).