Plastic spacers are used by LCD manufacturers to assure the accuracy
of the liquid crystal cell gap. Exact particle size distribution eliminates
cell gap abnormalities, thus preventing uneven coloration across the display.
Three types of grades are
available and each of them differs by the accuracy of their
particle diameter, referred to as variance (standard deviation /
average particle diameter). A black-colored type grade is
available too. It offers excellent light shielding properties,
thus resulting in better contrast. Additional options such as an adhesive coating,
prevents movement of the spacers after being sprayed onto the LCD glass and when
exposed to vibration.
Another option is a liquid
crystal aligning layer that is used for higher grade displays.
The aligning layer prevents light from passing through the
surrounding liquid crystals, thus resulting in better
contrast. Plastic spacers can withstand a wide temperature
range and are resistant to chemicals. |
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Type:
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Plastic
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Composition:
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Divinylbenzene
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Grades:
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Standard precision type (variance of 5 to 6%), medium
precision type (variance of 4% or less), high precision type
(variance of 3% or less), black-colored type
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Description:
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Sphere-shaped, transparent, plastic beads with
elasticity and fine particle size distribution
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Application:
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LCD cell gap (elastic)
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Options:
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Adhesive coating, liquid crystal aligning layer
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