HAYABEADS L-34 SERIES

Black Colored Spacer for LCD

Features

Chemical Composition

Grade

Grade Average Diameter Interval * C.V. Value Application Package unit
L-34S 4.0-7.0µm 0.1µm 2.7%±0.3% Negative mode STN, Color-STN, DSTN 10 gram / bottle
L-34N 7.1-12.0µm 0.1µm 3.5%±0.5% Negative mode TN 10 gram / bottle
L-34R 7.1-12.0µm 0.1µm 4.5%±0.5% Negative mode TN 10 gram / bottle

* Interval of 0.05μm can be provided upon request

Types

Types Features
DD It decreases light transmission through particles and peripheral ones.
DE It controls the alignment of L.C. stronger than DD. The molecules react on the surface of particles more than DD. And it has a good performance using dry type spraying device.
EE The surface treatment material of EE has a different molecular structure compared with DD and DE. It controls the alignment strongly.
FN The surface treatment material of FN, which has similar molecular structure to liquid crystal has good alignment controls. This type has affinity with liquid crystal, and it decreases the phenomenon of disclination between particles.
BA The surface treatment material of BA has more efficiency to the alignment control. And it is effective to decrease the phenomenon of disclination between particles.

Comparison of Performance

Types DD DE EE FN BA
Alignment Control Effect
(Periphery of Particle)
Alignment Control Effect
(Disclination between Particles)
Spraying Suitability DRY ×
WET
    ◎ Excellent ○ Good △ Fair × Poor  

General Properties

L-34S-DE @ 6.0µm L-11S @ 6.0µm Measuring Method
Specific Gravity 1.38 1.33 JIS K7112C
Specific Resistance 6.3×1015 Ωcm 3.0×1015 Ωcm JIS K6911
Dielectric Constant 3.6(1KHz)
3.3(1MHz)
4.0 (1KHz) JIS K6911
Dielectric Tangent 0.017 (1KHz)
0.024 (1MHz)
0.020 (1KHz) JIS K6911
Coefficient of Linear Expansion 9.1 x 10-5/°C
(20 - 175℃)
5.0 x 10-5/°C
(15 - 55℃)
JIS K7197

Physical Properties and Heat Resistance

Condition L-34S @ 6.0µm L-11S @ 6.0µm Measuring Method
Compression Strength
kgf/mm2
20 ℃ 78.7 105.9 Shimadzu Micro Compression Tester MCTM-200
165 ℃×1H 80.5 100.0
10% modulus
kgf/mm2
20 ℃ 70.7 65.1
165 ℃×1H 75.7 66.5
Recoverability
%
20 ℃ 88.0 92.0
165 ℃×1H 87.0 91.9

Light Blocking Effect

L-34S @ 6.0µm L-11S @ 6.0µm Measuring
White 1.46 0.05 Penetrameter DM-500 Dainippon Screen
Red 1.34 0.03
Green 1.51 0.05
Blue 1.46 0.10

Chemical Impurity

Substance Control limit Detection Inspection method
Fe 5ppm ≤1ppm ICP spectrophotometer
Ca 5ppm ≤1ppm
Na 5ppm ≤1ppm
Cl 10ppm 6.1ppm Ion chromatography

Spraying Method