CN101270862B

CN101270862B - Blue-ray LED for meanwhile implementing blue-ray panel display and white light illumination

Info

Publication number: CN101270862B
Application number: CN2008100653799A
Authority: CN
Inventors: 张丽红; 白杨; 杨忠义
Original assignee: Individual
Current assignee: Shenzhen Light Technology Co Ltd
Priority date: 2008-02-20
Filing date: 2008-02-20
Publication date: 2012-06-27
Anticipated expiration: 2028-02-20
Also published as: CN101270862A

Abstract

A lighting device using a blue LED and simultaneously realizing both the blue flat panel display and the white light illumination includes a light guide plate substrate on which patterns or words printed by lighting materials are arranged. An edge of the light guide is provided with penetrating holes where the blue LED is installed. The top of a pipe cap of the blue LED is coated with luminescent powder. The blue LED excites the luminescent powder to emit the white light, and realizes the white light illumination, while the part blue light emitted through position uncoated with the luminescent powder of the pipe cap and emitted by a blue LED chip combines the patterns or words printed on the light guide plate so as to realize the blue flat panel display, namely simultaneously realize both the blue flat panel display and the white light illumination. The invention belongs to the LED panel display and illumination technology field.

Description

A kind of LED light-emitting device

Technical field

A kind of light-emitting device that utilizes blue-ray LED to realize blue light FPD and white-light illuminating simultaneously belongs to LED FPD and lighting technical field.

Background technology

Traditional blue light realizes that blue light shows, overcoating luminescent powder on the blue chip and realize white-light illuminating.The present invention relates to a kind of blue-ray LED and realize blue light FPD and white-light illuminating simultaneously, its objective is and only utilize blue-ray LED to combine to realize simultaneously blue light FPD and white-light illuminating with LGP.

Summary of the invention

The purpose of this invention is to provide a kind of light-emitting device that utilizes blue-ray LED to realize blue light FPD and white-light illuminating simultaneously; Advantage is to utilize blue-ray LED and combine to realize simultaneously blue light FPD and white-light illuminating with LGP; Make the white-light illuminating life-span longer, can realize the blue light FPD simultaneously.

Technical scheme is: traditional blue-ray LED is for realizing that white-light illuminating is that overcoating luminescent powder on chip (blue-light excited back luminescent spectrum is changed into the luminescent powder of white light) is realized; The present invention is not at chip surface the luminescent powder overcoating; But the luminescent powder overcoating at certain position, the top of pipe cap; Blue chip sends and excites this partly luminescent powder and realize white-light illuminating behind the blue light; Blue light is still sent at other positions of pipe cap, and the blue light that other position sides are sent combines with LGP to realize the blue light FPD, promptly reaches and realizes white-light illuminating and blue light FPD simultaneously.

Concrete structure: 1 is FPD LGP substrate among Fig. 1, and substrate is by transparent plexiglass plate or transparent plastic sheet or the making of plastic optical fiber plate, and 2 is that through hole is installation 5 (LED) at the substrate edges place; 3 is the figure that substrate surface is printed with lighting material, and 4 is the literal that substrate surface is printed with lighting material, and 5 are the LED pipe; Hole 2 tight fits on LED and the substrate are installed; 6 is the LED die, and 7 are LED pipe position, top inwall overcoating luminescent powder (the blue-light excited luminescent powder that emits white light), and 8 blue-light excited 7 emit white light and realize the dead ahead illumination for what sent in LED tube core dead ahead; 9 and the 10 blue light sidelights that send for tube core; 9 and 10 in substrate through complicated light transmission, 9 and 10 shine 3 and at 4 o'clock, owing to the

effect

3 and 4 of lighting material shows blue light; Thereby realize the blue light FPD, 12 for ease of installing the printed circuit board (PCB) of welding 5 (LED).

When the LED electrified light emitting, white-light illuminating is realized in the LED dead ahead, and the blue light FPD realized in the figure of substrate surface and literal.

Fig. 2 is another version: 1,3,4 same Fig. 1, and this structure 55 is common blue-ray LED pipe or blue-ray LED pasters, the 55th, vertical latent edge enters the side end face of substrate 1; The end face of light-emitting area vertical substrate 1; 77 for printing the belt band that forms with luminescent powder (the blue-light excited luminescent powder that emits white light) at substrate edges, and when 55 (LED) electrified light emitting, 77 emit white light; Treat as annular spot, 3 and 4 blue light-emittings show and realization white-light illuminating and the FPD of blue light character and graphic.

Good effect of the present invention is: the white light life-span is longer, and is more energy-conservation, and white-light illuminating and blue light character and graphic show simultaneously to be realized.Other advantages show and illumination with LED.

Description of drawings

Fig. 1 realizes the front view and the AA generalized section of the light-emitting device of blue light FPD and white-light illuminating simultaneously for the present invention utilizes blue-ray LED.

Among Fig. 1:

1 is FPD LGP substrate;

2 are the through hole of substrate edges for installation LED;

The figure that 3 substrate surfaces that show for base plate are printed with lighting material;

The literal that 4 substrate surfaces that show for base plate are printed with lighting material;

5 is the blue-ray LED pipe;

6 is the LED die chip;

7 for luminescent powder at inwall overcoating position, LED pipe cap top, this part is just exposed substrate surface entirely during installation;

The 8 blue light image expressions of sending for the led chip dead ahead;

9, the 10 side blue lights that send for led chip schematically illustrate;

The 11 white indigo plants sent for LED pipe dead ahead schematically illustrate;

12 for ease of installing the printed circuit board (PCB) of LED welding LED.

Fig. 2 realizes the sketch map of another embodiment of blue light FPD and white-light illuminating simultaneously for blue-ray LED.

Among Fig. 2:

1 is FPD LGP substrate;

3 is the figure thin layer that substrate surface is printed with lighting material;

4 is the literal thin layer that substrate surface is printed with lighting material;

55 are vertical latent common blue-ray LED or the LED paster of inlaying substrate end-face;

77 for the surperficial belt band of printing with luminescent powder (the blue-light excited luminescent powder that sends white light) of thin layer of substrate edges, treats as annular spot during the LED electrified light emitting.

The specific embodiment

Press a kind of embodiment of Fig. 1; Figure and character size according to showing have been cut out substrate earlier, and the thickness of substrate depends on the length of LED, and the hole dimension of substrate edges will be installed with the LED tight fit; The literal of required demonstration, figure are printed with lighting material or frosting technology formation; LED is producing the special work of LED producer, and when making LED, the position size of LED pipe cap top inwall overcoating luminescent powder will be decided according to required illuminance.

Another kind of embodiment is Fig. 2, and LED adopts conventional blue-ray LED, and the thickness of substrate depends on diameter dimension and the patch size of LED; LED will conceal and be installed in the into peripheral end face of substrate; LED vertical substrate periphery end face, LED light-emitting area guarantee in the LED light direct beam substrate in substrate; The endless belt that spot is treated as at the substrate periphery edge is to print with luminescent powder (the blue-light excited luminescent powder that sends white light), and the literal of substrate surface and figure are to print thin layer or frosted formation with lighting material.

Claims

1. light-emitting device that utilizes blue-ray LED to realize blue light FPD and white-light illuminating simultaneously; It is characterized in that, comprise a LGP substrate, said substrate is provided with figure or the literal of printing with lighting material; The LGP substrate edges is provided with at least one through hole; At least one blue-ray LED is installed in the said through hole, covers at the position, top of said blue-ray LED pipe cap and be coated with luminescent powder, said blue-ray LED excites this luminescent powder to send white light; Realize white-light illuminating, pass through pipe cap and do not cover figure or the literal printed on the part blue light that the position that is coated with luminescent powder penetrates and the LGP and combine the FPD of realization blue light and blue-light LED chip sends.

2. light-emitting device that utilizes blue-ray LED to realize blue light FPD and white-light illuminating simultaneously; It is characterized in that: comprise a LGP substrate; Said substrate is provided with figure or the literal of printing with lighting material; Latent at least one blue-ray LED that studs with of LGP substrate edges end face, LGP substrate surface periphery employing luminescent powder is printed and is become to go in ring band, the blue-ray LED electrified light emitting; Excite go in ring with on luminescent powder send white light and realize white-light illuminating, the remainder blue light combines the FPD of realization blue light with literal or figure that lighting material is printed.