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structure of an adjustable color LED luminescence module based on fluorescent powder luminescence

A light-emitting module and fluorescent powder technology, applied in the field of lighting, can solve the problems of single innovation, easy falling off, deformation, etc., and achieve the effects of simplifying the production process steps, improving the stability of light emission, and ensuring the efficiency of heat dissipation

Pending Publication Date: 2019-01-25
广东晶锐半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention claims that due to the separation of the phosphor powder and the light source, the temperature of the phosphor powder is lower, the conversion efficiency is improved, the attenuation speed of the phosphor powder is reduced, the reliability of the entire LED lighting system is higher, and the light decay is smaller. However, in practical applications, the phosphor powder and the light source Simple separation, with air in the middle, the heat is still easy to transfer, the heat insulation is insufficient, the phosphor is simply attached to the reflector, and it is easy to fall off or deform, which will affect the luminous efficiency and luminous effect; just simple separation, there are no other highlights and Function, relatively single innovation

Method used

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  • structure of an adjustable color LED luminescence module based on fluorescent powder luminescence
  • structure of an adjustable color LED luminescence module based on fluorescent powder luminescence
  • structure of an adjustable color LED luminescence module based on fluorescent powder luminescence

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 of the present invention such as Figure 1-3 The structure of a tunable color LED light-emitting module based on fluorescent powder light-emitting is shown, including a light-emitting chip 1, a phosphor powder coating layer 2, and a liquid crystal driving layer 3. The light-emitting chip 1, liquid crystal driving layer 3 and fluorescent The powder coating layer 2 is arranged in sequence, and the liquid crystal driving layer 3 separates the phosphor coating layer 2 from the light-emitting chip 1. The liquid crystal driving layer 3 and the phosphor coating layer 2 have the same shape and are aligned and attached to each other. The phosphor coating layer 2 is separated from the light-emitting chip 1 by the liquid crystal driving layer 3, and is bonded with the phosphor coating layer 2 for packaging, which supports the phosphor layer and ensures the heat dissipation efficiency of the light-emitting chip 1. On the basis of the above, the stability of the phospho...

Embodiment 2

[0031] This embodiment is basically the same as Embodiment 1, the difference is:

[0032]The phosphor coating layer 2 includes a first groove 21, a second groove 22 and a third groove 23, and the first groove 21, the second groove 22 and the third groove 23 are respectively coated with red Phosphor, Green Phosphor, and Blue Phosphor.

[0033] Further, the first groove 21 , the second groove 22 and the third groove 23 are engraved with corresponding groove shapes by photolithography technology, and corresponding phosphor powder is coated on them.

[0034] Preferably, the phosphor coating layer 2 is made of a transparent material with high light transmittance

[0035] Further, the liquid crystal layer 37 includes a first liquid crystal region, a second liquid crystal region and a third liquid crystal region, and the first liquid crystal region, the second liquid crystal region and the third liquid crystal region are respectively connected to the first groove 21, The second gro...

Embodiment 3

[0038] This embodiment is basically the same as Embodiment 2, the difference is:

[0039] It also includes a reflector 4, and the light-emitting direction of the light-emitting chip 1 and / or the phosphor powder coating layer 2 faces the reflector 4, so that the light excited by the light-emitting chip 1 and the phosphor powder coating layer 2 passes through the The reflector 4 is reflected and emitted. The light emitted by the light-emitting chip 1 is reflected by the reflector 4 and emitted concentratedly, which can improve the conversion rate of the light source, and make the vertical light emission angle of the reflector 4 more concentrated, and the optical consistency is highly uniform.

[0040] The light-emitting chip 1 is an LED chip capable of emitting high-energy photons

[0041] Preferably, the light-emitting chip 1 is an ultraviolet LED chip.

[0042] The present invention provides a signal indicator light, including a housing, and the structure of an adjustable co...

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Abstract

The present invention relates to improvements in lighting devices, in particular to a structure of an adjustable color LED light emitting module based on fluorescent powder luminescence, include a light emitting chip, A luminescent power coating lay, the LCD drive lay is also included, the LED chip, A liquid crystal drive layer and a phosphor coat layer are sequentially arranged, the liquid crystal driving layer separates the phosphor coating layer from the light emitting chip, A liquid crystal drive lay and a phosphor coating lay are identical in shape and aligned to each other, By improvingthe luminous principle and the structure of the LED luminous module, the heat insulation effect is improved, the firmness of the phosphor powder is improved, the stability of the whole luminous systemis improved, and a stable color LED luminous scheme which can modulate the color is provided in the limited space.

Description

technical field [0001] The invention relates to the lighting field, in particular to a structure of an adjustable color LED light-emitting module based on fluorescent powder. Background technique [0002] Light-emitting diode, referred to as LED. LEDs can be used as indicator lights in circuits and instruments, or to form text or digital displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Due to chemical properties, it is divided into organic light-emitting diode OLED and inorganic light-emitting diode LED. LED has outstanding light efficiency, energy saving, environmental protection, and long life. It has become an ideal choice to replace traditional street light sources, making it widely used in the field of road lighting. Not only that, RGB LEDs that achieve color light based on current modulation RGB three chips can be displayed outdoors and A...

Claims

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Application Information

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IPC IPC(8): H01L33/50H01L33/58
CPCH01L33/502H01L33/507H01L33/58
Inventor 李立勉陈涛殷军亮胡鹏飞夏明张纯现唐龙江小龙张智
Owner 广东晶锐半导体有限公司
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