Patent ID: 6975375

Claim:
A method of manufacturing an active matrix type semipermeable liquid crystal display device comprising: an interlayered insulator film formed on a silicon layer, which is formed on a source and a drain of a thin-film-transistor, which is located in a reflecting section of a pixel; a reflecting electrode formed with surface irregularities on said interlayered insulator film in said reflecting section of said pixel; and a transparent electrode made of transparent conductive film formed in a transparent section of said pixel, the method comprising the steps of: providing said silicon layer; and forming said interlayered insulating film by: forming an interlayered insulating film layer on said silicon layer; forming a photoresist layer on said interlayered insulator film layer; forming a photoresist mask having a pattern on said photoresist layer, the pattern formed in a section for forming the reflecting electrode, the pattern defining contact holes in the photoresist layer corresponding to contact holes in the interlayered insulator film layer above the drain and source and surface irregularities in the photoresist layer; forming the contact holes and the surface irregularities in the photoresist layer by dry etching using the photoresist mask as a mask; using the photoresist layer as a mask, forming an opening in the interlayered insulator film layer in the transparent section of the pixel, the contact holes in the interlayered insulator film layer, and surface irregularities in a section of the interlayered insulator film layer at which the reflecting electrode is formed by dry etching, such that the shape of the surface irregularities in the photoresist layer are transferred to the shape of the surface irregularities in the interlayered insulator film layer; and wherein the pattern formed in the section for forming the reflecting electrode comprises a plurality of fine, ring-shaped patterns.