Polymer fluorescent nanometer particle, preparation method and application thereof

Abstract

The invention provides a polymer fluorescent nanometer particle. The polymer fluorescent nanometer particle is applied to liquid crystal display devices, and comprises a polymer nanometer particle, and rhodamine dye and hydrophilic-lipophilic balancing matter loaded on the polymer nanometer particle, wherein the polymer nanometer particle, the rhodamine dye and the hydrophilic-lipophilic balancingmatter are combined into a whole through electrostatic attraction; the hydrophilic-lipophilic balancing matter comprises at least one in perchlorate, sodium tetraphenylborate, sodium tetrakis (4-fluorophenyl) borate dihydrate and trityl tetrakis (pentafluorophenyl) borate. The polymer fluorescent nanometer particle can absorb yellow-orange light and emit red light, can be applied to liquid crystal display devices, so as to reduce interference of yellow-orange parasitic light and enhance the color gamut, and meanwhile emit red light to guarantee invariability of lightness; meanwhile the rhodamine dye is loaded on the polymer fluorescent nanometer particle, can avoid agglomeration of the rhodamine dye, improves the absorption efficiency and fluorescence efficiency, and the polymer fluorescent nanometer particle has a wide application prospect to the liquid crystal display devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a polymer fluorescent nanoparticle and a preparation method and application thereof. Background technique [0002] With the vigorous development of display technology, high color gamut has become an important development direction. A high color gamut means that the TV can display more colorful colors and has stronger color display capabilities, which can effectively avoid distortion and color blocks during display. Due to the increase in the types of colors, the color switching in the TV screen can be more natural, making the layers of the screen more distinct, showing more details and closer to the real effect. For LCD TVs, because the screen itself does not have self-illumination properties, the enhancement of the color gamut is mainly achieved through the color filter filters of the three primary colors (red, green, and blue); in addition, the adjustment of the backlight can...

AI Technical Summary

Problems solved by technology

However, the biggest disadvantage of these two color gamut enhancement methods is that the final red, green and blue primary colors are not pure.

Because it did not purify the three primary colors of red, green, and blue in the process of improving the color gamut, there is yellow-orange light, so the red, green, and blue primary colors emitted are not pure

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