CN201081191Y

CN201081191Y - LED surface light source for decorative lighting on building

Info

Publication number: CN201081191Y
Application number: CNU200720072511XU
Authority: CN
Inventors: 李瑛�; 唐国庆
Original assignee: Cotco Opto Technology Shanghai Ltd
Current assignee: Cree Shanghai Opto Development Ltd
Priority date: 2007-07-17
Filing date: 2007-07-17
Publication date: 2008-07-02
Anticipated expiration: 2017-07-17

Abstract

The utility model relates to an LED surface light source for building decoration and lighting and belongs to the building construction field. The utility model comprises external power supply equipment, a transparent baseplate and an LED light source. The utility model is characterized in that a transparent conductive electrode consisting of transparent conductive coating is arranged on the transparent baseplate; the LED light source is directly connected with the transparent conductive electrode through conductive adhesive or conductive tape; the LED light source is connected with the external power supply equipment through the transparent conductive electrode. As the utility model adopts the transparent conductive coating and a direct type LED lighting form, the diaphaneity of buildings to be decorated is greatly strengthened; when the utility model does not light in daytime, the external appearance is not influenced and the lighting need of a large dimension can be satisfied; through changing the etching pattern of the transparent electrode on the transparent baseplate and controlling the irradiance effect of the LED, the utility model is not influenced by the dimension of the transparent baseplate. The utility model can be widely used in the glass curtain walls of buildings, building decoration materials and other fields.

Description

Building decoration illuminating LED area source

Technical field

The utility model belongs to buildings in general structure field, relates in particular to a kind of illuminating LED light source that is used for various glass curtain walls.

Background technology

LED (Light Emitting Diode) is a light emitting diode, forms by PN layer and central luminescent layer, and along with luminescent layer material difference, its glow color difference.

Since early 1990s, nitride LED produced, the LED luminous efficiency had had qualitative leap.The successful development of blue-ray LED then makes white light LEDs become possibility.The successful development of the physical and chemical processes of white light LEDs and technology provides reliable assurance for realizing shades of colour led light source product.

In recent years, the successful solution of the processing procedure of great power LED and corresponding heat dissipation problem thereof has more promoted LED toward more application development.Because LED meets the RoHS (harmful substance uses restriction to guide) of European Union's appearance in 2004, be Green Product in addition, development prospect widely arranged than traditional lighting light source.

Now, its main application fields of LED comprises: preceding according to the decorum, and illumination (indoor and outdoors), demonstration (FPD, front end show illuminator), cab signal lamp, sensor (automobile-used, outside traffic pavement behavior etc.) etc.

For better being penetrated in the above-mentioned field, certainly will require LED to develop to line source, area source by traditional spot light.

At present, LED has a variety of as the building decoration illumination light source, roughly can be divided into following several:

1, with the paster LED be the use of the lampion string of light source, it mainly is made up of plain conductor and LED device, can directly the LED device electrode be connected on the lead, then lamp is ganged up certain mode and is pasted on the building that will decorate, keeps supplying power supply and gets final product.

This easy operating simple in structure, but decorative effect is not good, and especially lead hung on the building outside overall appearance of building was caused very big influence daytime.

2, be the gradual change wallboard or the wall bar of backlight with LED, its thickness is bigger, and transparency is not high, and it is complicated that it drives control, and cost is also than higher;

3, do to be assembled into shot-light by LED behind the module;

4, side-light type LED transparent light source, it mainly is made of glass plate, LED device, lead etc., and the LED device is installed in glass plate on every side as the sidelight source, and luminous afterwards light being imported to again of light emitting source becomes LED transparent area light source in the glass plate.

Do like this and have the following disadvantages: can't show decorative pattern, can only be single light source; LED cooperates difficulty big with optics between the glass, when using, all will do corresponding optical design to glass and LED at every turn, to reach the optics requirement, makes troubles to application like this; In addition, because the led light source influence of fading, its area source size is received certain restriction, and the light uniformity is also received certain limitation.How to carry out LED and make transparent LED area source, make it keep both artistic and practical in not luminous, producing corresponding figure pattern illumination again when luminous, can't to be subjected to size constrained be the current problem that will consider.

The day for announcing is on November 17th, 2004, notification number is that the Chinese patent of CN 2657205Y discloses a kind of " flat LED light source ", it comprises two dull and stereotyped light transmission mediums, at least one has the LED tube core of electrode pin, the described LED die package that has electrode pin is between the plane of described two dull and stereotyped light transmission mediums, and described electrode pin is extended to two current electrodes of dull and stereotyped light transmission medium side formation.This flat LED light-source structure is very simple, realizes easily on the technology, can be as the decoration or the illumination of glass curtain wall and other dull and stereotyped light transmission medium.When in one group of glass, a plurality of LED tube cores that have electrode pin being encapsulated by pre-designed physical space arrangement mode, and the tube core glow color is different, just can produce colorful, the colourful dot matrix light of pattern, thereby form strong light decoration, illuminating effect.

But there is following deficiency in technique scheme:

1, its electrode pin is the metal or alloy lead, along with the increase of use LED number of elements, certainly will form densely covered, complicated wire screen on glass curtain wall, the transparency and the exterior appearance of the glass curtain wall that influence will be decorated;

2, for the occasion that requires the different characteristics of luminescences, its wire structures is too complicated, technology difficulty is quite high, causes corresponding cost also than higher, for large-area glass curtain wall, lead between each module connects difficulty, thereby will be subjected to a lot of restrictions in application of practical project.

The utility model content

Technical problem to be solved in the utility model provides a kind of building decoration illuminating LED area source, it is formed by the combination of LED spot light and is the good area source of transparent effect, strengthened the transparency of the decorative constructure of wanting greatly, when not luminous by day, can not influence its exterior appearance, can satisfy large-sized lighting requirement, control the illumination effect of LED by the etching pattern that changes transparent electrode on transparent substrate, thereby the formation luminous pattern, and can not be subjected to the influence of size.

The technical solution of the utility model is: a kind of building decoration illuminating LED area source is provided, comprises externally fed equipment, transparency carrier and led light source, it is characterized in that: the transparency conductive electrode that is made of transparent conducting coating is set on described transparency carrier; Described led light source directly is connected with transparency conductive electrode through conducting resinl or conductive tape; Described led light source is connected with externally fed equipment through transparency conductive electrode.

Its described transparent conducting coating covers transparency carrier partly.

Its described transparent conducting coating is at least one deck, perhaps, is the sandwich construction of insulation between layer and the layer.

Described led light source is LED device or led chip.

Described transparency carrier is flexible transparent substrate material or nonbreakable glass.

Compared with the prior art, the utility model has the advantages that:

1. adopt transparency electrode to replace traditional non-transparent metals lead, strengthened the transparency of substrate widely, under the state of not lighting, kept the aesthetic measure of illumination beyond the region of objective existence portion;

2. on transparent electrode coating, directly etch the layout that meets the different structure circuit,, can realize control, be convenient to realize the demonstration of certain color and multicolour pattern LED matrix light emitting source by design to etching pattern;

3. because electrode pattern can directly be coated on the transparency carrier material, and the luminous form of straight-down negative allows it not be subjected to size constrained, become the first-selection of large scale application such as clear glass curtain wall.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

1 is transparency carrier among the figure, and 2 is led light source, and 3 is the lead end of led light source, and 4 is conducting resinl, and 5a, 5b are transparency conductive electrode.

The specific embodiment

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

Among Fig. 1, transparency conductive electrode 5a, the 5b that is made of transparent conducting coating is set on transparency carrier 1, the lead end 3 of led light source 2 directly is connected with transparency conductive electrode through conducting resinls or conductive tape (among the figure be example with conducting resinl 4), and described led light source is connected with externally fed equipment through transparency conductive electrode.

Its transparent conducting coating covers transparency carrier partly.

Its transparent conducting coating is at least one deck, perhaps, is the sandwich construction (among this figure be example with one deck structure) of insulation between layer and the layer.

Led light source is LED device or led chip.

Its transparency carrier is flexible transparent substrate material or nonbreakable glass.

Its transparent conducting coating can be tin indium oxide (ITO-Indium tin oxide), indium-zinc oxide transparent oxide conductive electrodes such as (IZO-Indium doped Zinc oxide), also can be that organic transparent conductive material is as poly-(3,4-dioxoethyl thiophene) PEDOT (polyaniline).

Specific embodiments:

(1) processing of the transparent conducting coating on transparency carrier surface and pattern etch:

Two kinds of embodiments are arranged:

First kind: the substrate that directly will scribble transparent conducting coating cleans up, and will need current-carrying part to carry out mask then, and through acid etch, non-conducting portion etches away, and the corresponding pattern that just comes out constitutes the transparent electrode coating with certain graphic structure.

In addition can be according to the complexity of pattern mask repeatedly, multiple etching.

Second kind: earlier according to designed pattern, on substrate, do not need current-carrying part to carry out mask, in the place of needs conduction transparent conducting coating is coated on the transparency carrier with methods such as sputters then, can be carried out repeatedly mask multiple etching according to the design needs equally.

(2) led light source assembling:

Design according to transparent conducting coating, led light source is connected on the corresponding transparent conducting coating pattern according to both positive and negative polarity, led light source can stand directly on the transparent conducting coating pattern of substrate surface by the form of a glue with conducting resinl, then, select to be cured under the different temperature according to the difference of conducting resinl; Also can use conductive tape directly led light source to be sticked on the transparent conducting coating of glass, the latter operates simple and easy, but cost is higher.

(3) apply the respective drive curtage, can realize the illumination of transparent light source.

Because the utility model has adopted transparent conducting coating and the luminous form of straight-down negative LED, strengthened the transparency of the decorative constructure of wanting greatly, when not luminous by day, can not influence its exterior appearance, can satisfy large-sized lighting requirement, the illumination effect of etching pattern control LED by changing transparent electrode on transparent substrate can not be subjected to the influence of the size of transparency carrier.

For those of ordinary skills, can make various possible being equal to according to foregoing description and replace or change, and all these changes or replacement all should belong to the protection domain of the utility model claims.

The utility model can be widely used in fields such as the glass curtain wall of building or building and ornament materials.

Claims

1. a building decoration illuminating LED area source comprises externally fed equipment, transparency carrier and led light source, it is characterized in that:

The transparency conductive electrode that is made of transparent conducting coating is set on described transparency carrier;

Described led light source directly is connected with transparency conductive electrode through conducting resinl or conductive tape;

Described led light source is connected with externally fed equipment through transparency conductive electrode.

2. according to the described building decoration illuminating LED of claim 1 area source, it is characterized in that described transparent conducting coating covers transparency carrier partly.

3. according to claim 1 or 2 described building decoration illuminating LED area sources, it is characterized in that described transparent conducting coating is at least one deck.

4. according to claim 1 or 2 described building decoration illuminating LED area sources, it is characterized in that the sandwich construction of described transparent conducting coating for insulation between layer and the layer.

5. according to the described building decoration illuminating LED of claim 1 area source, it is characterized in that described led light source is LED device or led chip.

6. according to the described building decoration illuminating LED of claim 1 area source, it is characterized in that described transparency carrier is flexible transparent substrate material or nonbreakable glass.