- What is PDLC?
- Polymer-dispersed liquid crystal (PDLC) film a smart window film that consists of a thin PDLC layer (10~30 ㎛) sandwiched between two transparent conductive substrates. PDLC is a composite of randomly distributed microdroplets of liquid crystalline materials in a polymer matrix, formed by the phase separation of liquid crystal (LC) and polymer from a homogeneous single-phase mixture. The LC domains can provide electro-optically controllable functions because of their orientation being influenced by an applied electrical field, whereas the polymer matrix provides mechanical, thermal, and environmental stability. In the off-state, a PDLC composite appears opaque because it strongly scatters light because of the refractive index mismatch between the LC droplets and the polymer matrix, whereas in the on-state a PDLC becomes transparent because it allows light to pass because of the reorientation of LC within the droplets and matching of the refractive indices of LC and polymer.
- Applications of PDLC
- The intrinsic ability of PDLC to modulate light (scattering mode) means that it has potential applications in various electro-optical devices, such as switchable privacy windows (smart windows), optical shutters, tunable LC lenses, flexible displays, electric curtain, projection screens, and other light-control devices in architectural, automotive and consumer electronic industries.
- PDLC technologies in Q-sys
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- Design, synthesis and formulation of UV curable prepolymer materials
- Formulation of LC (liquid crystal) materials
- Analysis technology for the formulation-structure-property correlation of PDLC materials
- Optimization of PDLC formulation for customer’s specifications and process
- Principle of PDLC operation
- Applications