• Polymer Science and Technology
• /
• v.9 no.3
• /
• pp.200-208
• /
• 1998

• Polymer Science and Technology
• /
• v.7 no.6
• /
• pp.738-749
• /
• 1996

• Polymer(Korea)
• /
• v.33 no.5
• /
• pp.496-500
• /
• 2009

Optically compensated bend liquid crystal display (OCB-LCD) has many application fields owing to its fast response time and wide viewing angle. However, in order to operate the OCB-LCD in bend state, this device needs quick transitions from the initial splay state to bend state. Unlike conventional approach using transient high voltage for the transition, the OCB-LCD with high surface tilt angle, which was achieved by polymerization of UV curable reactive mesogen monomer under certain voltage, was manufactured and the cell showed bend state initially. Electro-optic and electrical characteristics of the cell were analyzed. The cell shows a fast response time owing to high surface pretilt angle and very low residual DC less than 0.1 V although another polymer layer is formed above polymer alignment layers.

• Polymer Science and Technology
• /
• v.17 no.2
• /
• pp.226-235
• /
• 2006

• Macromolecular Research
• /
• v.11 no.3
• /
• pp.133-145
• /
• 2003

We have developed novel lanthanide-cored supramolecular systems with highly efficient light-harvesting dendritic arrays for integrated planar waveguide-typed amplifiers. Er$^{3+}$ ions were encapsulated by the supramolecular ligands, such as porphyrins and macrobicyclics. The supramolecular ligands have been designed and synthesized to provide enough coordination sites for the formation of stable Er(III)-chelated complexes. For getting a higher optical amplification gain, also, the energy levels of the supramolecular ligands were tailored to maintain the effective energy transfer process from supramolecular ligands to erbium(III) ions. Furthermore, to maximize the light-harvesting effect, new aryl ether-functionalized dendrons as photon antennas have been incorporated into lanthanide-cored supramolecular systems. In this paper, molecular design, synthesis and luminescent properties of novel lanthanide-cored integrated supramolecular systems with highly efficient light-harvesting dendritic arrays will be discussed.d.

• Polymer Science and Technology
• /
• v.1 no.3
• /
• pp.178-189
• /
• 1990

• Polymer Science and Technology
• /
• v.1 no.2
• /
• pp.81-88
• /
• 1990

• Macromolecular Research
• /
• v.14 no.2
• /
• pp.235-239
• /
• 2006

• Macromolecular Research
• /
• v.17 no.9
• /
• pp.721-724
• /
• 2009

• Macromolecular Research
• /
• v.15 no.3
• /
• pp.202-204
• /
• 2007