Dimming device containing guest-host liquid crystal composition
A technology of liquid crystal composition and dimming device, applied in liquid crystal materials, optics, nonlinear optics, etc., can solve the problems of high energy consumption, high safety, high driving voltage, poor transparency, etc.
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Embodiment 1
[0134] The parent liquid crystal 1 of embodiment 1 was prepared by each compound listed in table 3 and the weight percentage, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the table below:
[0135] Table 3 Composition and ratio of matrix liquid crystal
[0136]
[0137] Add 0.15% dye 13 + 0.05% dye 7 + 0.4% dye 25 to the matrix liquid crystal 1 to form dye liquid crystal composition A, fill the guest-host liquid crystal composition into the dimming device of the present invention, and the dimming device is black , the transmittance and current changes are shown in Table 4:
[0138] Table 4
[0139]
Embodiment 2
[0141] The parent liquid crystal 2 of embodiment 2 is prepared by each compound listed in table 5 and the percentage by weight, which is filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the table below:
[0142] Table 5 Composition and ratio of matrix liquid crystal
[0143]
[0144]
[0145] Add 0.30% dye 13+0.10% dye 7+0.80% dye 25 to the matrix liquid crystal 2 to form guest-host liquid crystal composition B, fill the guest-host liquid crystal composition into the dimming device of the present invention, and the dimming device is black , the transmittance and current changes are shown in Table 6:
[0146] Table 6
[0147]
Embodiment 3
[0149] The parent liquid crystal 3 of Example 3 was prepared by each compound listed in Table 7 and the weight percentage, and it was filled between the two substrates of the liquid crystal display for performance testing. The test data are shown in the table below:
[0150] Table 7 Composition and ratio of matrix liquid crystal
[0151]
[0152] Add 0.60% Dye 13 + 0.20% Dye 7 + 1.60% Dye 25 to the matrix liquid crystal 3 to form a guest-host liquid crystal composition C, fill the guest-host liquid crystal composition into the dimming device of the present invention, and the dimming device is black , the transmittance and current changes are shown in Table 8:
[0153] Table 8
[0154]
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