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High-color gamut fluorescent powder composition, white LED and preparation method of white LED

A fluorescent powder and high color gamut technology, which is applied in the field of white LED backlight, can solve the problems of poor picture vividness and fidelity, insufficient spectrum width, and inability to meet process requirements, etc., and achieve high vividness and fidelity

Inactive Publication Date: 2016-09-14
SHENZHEN LT OPTOELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This solution is very efficient, but due to the lack of red light components, the spectrum is not wide enough, the fullness of the color is about 60%-70%, and the vividness and fidelity of the picture are poor, so it cannot meet the process of all color temperatures Requirements, so its application has certain limitations

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  • High-color gamut fluorescent powder composition, white LED and preparation method of white LED
  • High-color gamut fluorescent powder composition, white LED and preparation method of white LED
  • High-color gamut fluorescent powder composition, white LED and preparation method of white LED

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Embodiment Construction

[0018] In order to achieve the purpose of the present invention, the technical solutions and advantages are more clearly understood, and the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] The first embodiment of the present invention provides a high color gamut phosphor combination, which includes red phosphors, green phosphors and yellow phosphors with a mass ratio of (1-4):(0.5-2):(0.5-2). Light fluorescent powder, wherein, the red light fluorescent powder is potassium fluorosilicate, and the yellow light fluorescent powder is silicate.

[0020] Furthermore, the mass ratio of the red phosphor, the green phosphor and the yellow phosphor is (1-3):(0.5-1.5):(0.5-1.5). In some preferred embodiments of the present invention, the mass...

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Abstract

The invention relates to the technical field of white LED backlight, in particular to a high-color gamut fluorescent powder composition. The fluorescent powder composition comprises red-light fluorescent powder, green-light fluorescent powder and yellow-light fluorescent powder at the mass ratio of (1-4) to (0.5-2) to (0.5-2), wherein the red-light fluorescent powder is potassium fluosilicate; and the yellow-light fluorescent powder is silicate. The invention further provides a white LED. The white LED comprises fluorescent glue which is prepared from the fluorescent powder composition. The invention further provides a preparation method of the white LED. The method comprises the steps of: weighing the red-light fluorescent powder, the green-light fluorescent powder and the yellow-light fluorescent powder at the mass ratio of (1-4) to (0.5-2) to (0.5-2); mixing the fluorescent powder with colloid to obtain the fluorescent glue; and further preparing the required white LED by the fluorescent glue. By the high-color gamut fluorescent powder composition and the preparation method of the white LED, the high-color gamut white LED can be obtained; and the high-color gamut white LED has the advantages of being relatively high in color saturation level and more realistic.

Description

【Technical field】 [0001] The invention relates to the technical field of white LED backlights, in particular to a high color gamut fluorescent powder combination, a white LED and a preparation method thereof. 【Background technique】 [0002] At present, the market demand for white LED is increasing. Usually, the main implementation methods of white light LEDs are as follows: 1. Realize white light by mixing LED chips of red, green and blue primary colors. By packaging the chips of these three colors, the main advantage is good color rendering, but the cost is relatively high, and The light attenuation of the three color LED chips is different, which is prone to defects such as discoloration; 2. In order to make the color of LED products more perfect, the color degree is richer, and the color closer to the real world, many R&D technicians are committed to finding ways to improve LED products. The color gamut value, by using ultraviolet light or near ultraviolet to excite the ...

Claims

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Application Information

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IPC IPC(8): H01L33/50H01L33/00
CPCH01L33/504H01L33/005H01L2933/0041
Inventor 王磊
Owner SHENZHEN LT OPTOELECTRONICS CO LTD
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