Black Spacers,Nano-Micro_specification/price/image

Product Detail
Company Profile

Nano-Micro has developed black microspheres based on a proprietary composite of silica and polymer. These composite microspheres are intensely black and darker than other similar products on the market. Employed as a spacer in liquid crystal displays (LCD), the black microspheres not only control the thickness of the liquid crystal layer but also prevent leakage of light through the microspheres to improve the contrast of the LCD panel. When immersed or dispersed in a medium for the application, the dark color does not fade or leach out of the microspheres. Current production of the black spacer centers around mainstream sizes of 4.0 and 6.0 µm. When placing an order of the product of other particle sizes, a lead time should be considered.

Characteristics

uUniform in size and shape, coefficient of variation (CV) ≤ 3.5%

uGood dispersity, no overlaps or aggregates

uHigh purity, no leachables, compliance with RoHS regulations

uGood mechanical strength

uExceptional stability toward chemicals and resistance to heat and cold l

Physical properties

Specific gravity，g / cm³	1.8
Decomposition temperature, °C air	> 300
Refractive index (Sodium D line)	2.42

Product	Type	Diameter	CV	K at 10% deformation*	Application
Product	Type	µm	CV	*Kgf / mm*²	Application
BK	NM BK	2.0 –10.0	≤ 3.5%	≥ 2000	HTN, STN, FSTN

* The K value at 10% deformation is defined by the following equation:

wherein F and S represent a load value (kgf) and a compression displacement (mm) at 10% compression deformation of the particle, respectively, and R represents a radius (mm) of the particle.