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US 2020/0348575 A1Published application
Apparatus Having Variable Transmittance
AssigneeLG Chem, Ltd.
InventorsYoung Sik Yoon, Tae Gyun Kwon, Moon Soo Park
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AssigneeLG Chem, Ltd.
InventorsYoung Sik Yoon, Tae Gyun Kwon, Moon Soo Park
Estimating the term…
A transmittance-variable device, a driving method thereof, a method for improving a light shielding ratio therein, and a use thereof are disclosed herein. In some embodiments, a transmittance-variable device includes a transmittance-variable film capable of switching between a transparent mode and a black mode depending on application of a voltage signal; and a power source for applying a voltage signal having a frequency of 30 Hz or less to implement the black mode, wherein the transmittance-variable film comprises a first electrode substrate, an electrophoretic layer, and a second electrode substrate sequentially arranged. The transmittance-variable device can exhibit an excellent light shielding ratio in the black mode after driving with a voltage signal, and such a transmittance-variable device can be usefully used in a smart window.
A transmittance-variable device comprising:
The transmittance-variable device according to claim 441, wherein the power source applies a voltage signal having a first frequency to implement the transparent mode, and applies a voltage signal having a second frequency to implement the black mode,
A method of driving a transmittance-variable device, comprising:
A method for improving a light shielding ratio of a transmittance-variable device comprising:
Dependencies are inferred from the claim text.