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Light emitting material composition and light emitting apparatus

A light-emitting material and light-emitting device technology, applied in the field of optical materials, can solve the problem of low display color gamut, and achieve the effect of widening the display color gamut and improving the display effect.

Active Publication Date: 2018-08-17
GRIREM ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a light-emitting material composition and a light-emitting device to solve the problem of low display color gamut of LED devices in the prior art

Method used

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  • Light emitting material composition and light emitting apparatus
  • Light emitting material composition and light emitting apparatus
  • Light emitting material composition and light emitting apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] as per figure 1 The white LED lighting device of the present invention is prepared in the manner shown. Among them, the LED chip 2 is a chip with a peak wavelength at 365nm, and the blue light in the light conversion part 3 is emitted using Ba 0.85 MgAl 10 o 17 : 0.15Eu, green luminescent material adopts La 2.84 Si 6 N 11 : 0.16Tb, the red luminescent material uses 3.5MgO·0.5MgF 2 0.85 (Ge 0.9821 mn 0.0179 )O 2 0.15 / 3Si 3 N 4 . The above-mentioned blue luminescent material, green luminescent material and red luminescent material were mixed and dispersed in silica gel at a weight ratio of 30:40:30 (the weight ratio of silica gel to phosphor was 90:10) to prepare a light conversion part. The light conversion part is further assembled into an LED lighting device.

Embodiment 2

[0052] as per figure 1 The white LED lighting device of the present invention is prepared in the manner shown. Among them, the LED chip 2 is a chip with a peak wavelength at 405nm, and the blue luminescent material in the light conversion part 3 adopts Sr 4.8 (PO 4 ) 3 Cl: 0.2Eu, green luminescent material adopts Ba 0.5 MgAl 10 o 17 : 0.07Eu, 0.43Mn, red luminescent material using 3.5MgO 0.5MgF 2 0.8 (Ge 0.981 mn 0.019 )O 2 0.2 / 3Si 3 N 4 . The above-mentioned blue luminescent material, green luminescent material and red luminescent material were mixed and dispersed in epoxy resin according to the weight ratio of 25:45:30 (the weight ratio of epoxy resin to phosphor was 92:8), and the light conversion part was prepared. . The light conversion part is further assembled into an LED lighting device.

[0053] The preparation process of Examples 3-12 is basically the same as that of Example 2, using different LED chips and luminescent materials, see Table 1 for details...

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Abstract

The present invention provides a light emitting material composition and a light emitting apparatus. The light emitting material composition comprises a blue light emitting material, a green light emitting material and a red light emitting material, wherein the blue light emitting material is selected from any one or a plurality of materials represented by the following general formulas: Ca2-xLuHf2Al3O12:xCe, Ca3-yZr2SiGa2O12:yCe, Ba1-rMgAl10O17:rEu and Sr5-m(PO4)3Cl:mEu, the green light emitting material is selected from any one or a plurality of materials represented by the following generalformulas: Si6-zAlzOzN8-z:kEu, Ba1-s-tMgAl10O17:sEu, tMn and La3-vSi6N11:vTb, and the red light emitting material is formed by any one or a variety of materials selected from 3.5MgO.0.5MgF2.j(Ge1-nMnn)O2.iM3N4. The composition of the present invention can broaden the display color gamut.

Description

technical field [0001] The invention relates to the field of optical materials, in particular to a luminescent material composition and a luminescent device. Background technique [0002] In recent years, liquid crystal display (LCD) technology has developed rapidly, and it has been widely used in the fields of mobile phones, notebook computers, and high-definition televisions. Since the liquid crystal material itself does not emit light, the backlight source becomes an indispensable key component of the liquid crystal display device. At present, there are mainly two types of backlight sources for LCDs: cold cathode lamps (CCFLs) and white light diodes (LEDs). The white LED has many advantages such as good color reproduction, low power consumption, and long life, so its market share in the field of liquid crystal display backlight is growing rapidly. [0003] At present, the "LED chip + phosphor" method is still the mainstream method of white LED production due to its high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/64C09K11/79C09K11/61C09K11/86C09K11/67C09K11/80H01L33/50
CPCH01L33/502H01L33/504C09K11/616C09K11/675C09K11/7721C09K11/7734C09K11/7739C09K11/7749C09K11/7768C09K11/7774C09K11/7718C09K11/7731C09K11/77348C09K11/77747C09K11/77497
Inventor 刘元红刘荣辉邵冷冷马小乐高慰陈磊周小芳张霞
Owner GRIREM ADVANCED MATERIALS CO LTD
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