Kyung Chan Park

High-density read-only optical disc, and optical disc apparatus and method using the same

High density optical disc and method for reproducing and recording data thereof

Reflection-preventing layer for a display device

Optical disk having a projection with lateral inclined surface

Optical recording medium with multiple recording layers and fabricating method thereof

High-density multi-layer recording medium and an apparatus for writing to or reading from such a recording medium

Optical pickup apparatus having polarizing phase plates

High-density optical disc, and apparatus and method for reproducing/recording data thereon

High-density recording medium and recording and/or reproducing device therefor

High density disk recording medium and apparatus using the same