Abstract: A photosensitive polyimide resin 12 is exposed and developed via a computer-aided designed (CAD) pattern film 14 to form a pattern onto a mold base 11 by means of photoresisit method. A molded pattern 13 is thus formed to construct a mold 10. An optical panel 2 is formed by the use of the mold 10 with an optical pattern 3 comprising circular or rectangular dot holes or dot projections each of which is several &mgr;ms and arranged in high density which is a reversal of the molded pattern 13. The optical pattern 3 performs light guiding or diffusion of incident light in high luminance and with a high degree of uniformity, thereby achieving secondary illumination without having see-through of the optical pattern.

Abstract: When electrodes in two-layer composition, provided with a color filter in the inside thereof, are provided on the inner surface of a liquid crystal cell board, it is aimed to prevent creation of faulty connections in contact holes and to transmit a driving voltage normally even if faulty connections may occur. A first-layer transparent electrode 1a is formed on the board, then resist is coated so that the contact holes 6 are open on the side surface in one side of the electrode pattern, on which a color filter 3 is formed. After that, said resist is removed and a second-layer transparent electrode 1b is formed in film.