The composition of liquid crystal:

The liquid crystal that LCD uses, it is to point to mix up liquid crystal commonly, become by a variety of liquid crystal monomer and mix up of hand sex agent.

The character of liquid crystal:

TN liquid crystal is general molecular cable length is shorter, it is more difficult that characteristic parameter is adjusted, characteristic difference is so more apparent. STN liquid crystal is to pass STN to show data model, computation gives length of needs liquid crystal element, reach performance data of its optics electricity, next chemical industry synthesizes a variety of molecular catenary structures to have different polarity similarly the monomer of molecular radical group, allocate the series liquid crystal of a characteristic likeness each other. The STN liquid crystal of different set often has completely different element catenary, accordingly, the STN liquid crystal of different set unless manufacturer specification can be allocated each other outside, cannot allocate each other.

There is those who head polar group to mix in liquid crystal element do not head polar group, the liquid crystal monomer that brings polar group element basically decides the parameter of threshold values voltage of mix up liquid crystal, the liquid crystal monomer that does not bring polar group element basically decides the refractive index of mix up liquid crystal and clearing point. The monomer that polar group heads in liquid crystal and the monomer that do not head polar group meet occurrence same sex below quiet place condition phenomenon of isomer layer analyse.

To increase machine itself bide one's time time and the drive ability that enhance a LCD, liquid crystal manufacturer developed the liquid crystal of voltage of low threshold values that uses below can contented low voltage and low frequency condition. It has the following character:
The monomer that polar group heads in liquid crystal of voltage of low threshold values and the monomer that do not head polar group issue isomer of occurrence same sex in quiet place condition the time of layer analyse phenomenon is shorter.

More monomer group shares that head polar group, also mean liquid crystal to combine water element and other more easily to take the free ion of polarity, reduced the capacitive reactance resistance of liquid crystal thereby, cause the accretion of leakage current and power comsumption thereby.
It is when the molecular catenary of monomer of polarity liquid crystal after ultraviolet become acute, polarity element base the group is twined easily each other form neuter element group, turn the row that be not a layer into the fault to condition, cause threshold values voltage to lift consequently, not sensitive to directing the anchor of the layer decides action, lose ability of low voltage drive.

1, the classification of liquid crystal:

Press indication type cent: TN liquid crystal, STN liquid crystal, HTN liquid crystal;
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