Unlock instant, AI-driven research and patent intelligence for your innovation.

Light increasing element

A technology of light-emitting components and components, applied in optical components, electrical components, optics, etc., can solve the problems of large particles and inability to further increase light

Inactive Publication Date: 2007-10-10
LUMINOSO PHOTOELECTRIC TECH
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, inorganic materials such as YAG phosphor used in light-emitting diodes in the past can only be dispersed in solvents, but cannot be dissolved in solvents. Therefore, when YAG phosphors are added to light-transmitting components such as encapsulation layers, The YAG phosphor particles in the encapsulation layer will be larger. Once more is added to increase the light, it will block part of the light and cannot further increase the light. When the YAG phosphor is matched with the blue chip, if it is added A large amount will emit a yellowish white light

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light increasing element
  • Light increasing element
  • Light increasing element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062]The stilbene fluorescent whitening agent is dissolved in acetone to obtain a 0.5% by weight stilbene fluorescent whitening agent solution, and the weight percentage is 98.00% silicone resin and 2% by weight 0.5% stilbene fluorescent whitening agent solution was stirred and defoamed to prepare a phosphor-resin mixture, and the phosphor-resin mixture was used for GaN chip (die bonding and wire bonding) bonding)) for sealing, and then drying to remove the solvent to form an LED brightness enhancement device. Stilbene fluorescent whitening agent, its structural formula is as follows:

[0063]

[0064] In addition, an LED device without fluorescent whitening agent in the silicone resin encapsulation layer is prepared.

[0065] Brightness test

[0066] After applying 3.6 volts to the GaN chip, it emits blue light with a wavelength of about 465nm, which passes through the silicone resin encapsulation layer without stilbene fluorescent whitening agent, and emits blue light ...

Embodiment 2

[0068] Except that benzoxazole was used instead of stilbene, the same method as in the above-mentioned embodiment 1 was used to manufacture an LED brightness enhancement device. Benzoxazole fluorescent whitening agent, its structural formula is as follows:

[0069]

[0070] Brightness test

[0071] Utilizing the same method as the above-mentioned embodiment 1, the lumen illuminance meter is used at a height of 30 cm and a height of 50 cm every 24 hours to measure the light emitted by the GaN chip through the silicone encapsulation layer that does not contain a benzoxazole fluorescent whitening agent. Luminance (LM) of emitted blue light. Then, measure the luminance (LM) of the blue light emitted by the GaN chip through the silicone encapsulation layer containing benzoxazole fluorescent whitening agent every 24 hours with a lumen illuminance meter at a height of 30 cm and a height of 50 cm. The total measurement time was 960 hours for both of the above. The measurement re...

Embodiment 3

[0073] Except that 9-xanthone was used instead of stilbene, the LED brightness enhancement device was manufactured by the same method as in the first embodiment above. 9-xanthone fluorescent whitening agent, its structural formula is as follows:

[0074]

[0075] Brightness test

[0076] Using the same method as in the above-mentioned Example 1, measure the penetration of the GaN chip through the silicone resin packaging layer that does not contain 9-xanthone fluorescent whitening agent at a height of 30 cm and a height of 50 cm every 24 hours with a lumen illuminance meter. Luminance (LM) of the emitted blue light. Then, measure the luminance (LM) of the blue light emitted by the GaN chip through the silicone encapsulation layer containing 9-xanthone fluorescent whitening agent at a height of 30 cm and a height of 50 cm every 24 hours with a lumen illuminance meter . The total measurement time was 960 hours for both of the above. The measurement results obtained from t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Wavelengthaaaaaaaaaa
Wavelengthaaaaaaaaaa
Login to View More

Abstract

An intensification element consists of light transmission element containing fluorescent brightening agent being used to absorb partial first light emitted by luminous element and to emit out the second light with wavelength being greater than that of the first light.

Description

technical field [0001] The invention relates to a light-transmitting element, in particular to a light-increasing element, which is a light-transmitting element containing a fluorescent whitening agent. After the light passes through the light-enhancing element, the brightness of the light can be greatly improved. Background technique [0002] Fluorescent materials are widely used and are closely related to people's lives. Among them, fluorescent whitening agent is a colorless organic dye, which absorbs ultraviolet light with a wavelength of 250-400nm, and then reflects blue light with a wavelength of 420-480nm. Violet visible light is mainly used in detergents (including washing powder, soap, etc.), paper, and various textile fibers. After the fluorescent whitening agent is dyed on the fabric, the reflected blue-purple visible light complements the original yellowish tone on the fabric, giving the impression that the whiteness and vividness of the fabric have increased. Ho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B1/04G02B1/10G02F1/13357H01L33/00F21V17/00G02F1/1335H01L33/50
Inventor 蔡凯雄李冠达
Owner LUMINOSO PHOTOELECTRIC TECH