Patent ID: 7817229

Claim:
A method for manufacturing a transflective type LCD having a first substrate provided thereon with a plurality of scanning lines and a plurality of signal lines which are substantially perpendicular to each other and a switching element arranged near each of intersections between said scanning lines and said signal lines, forming a reflection region having a reflection electrode film and a transmission region having a transparent electrode film in a pixel region surrounded by said scanning lines and said signal lines, a liquid crystal being sandwiched at a gap between said first substrate and a second substrate which is arranged opposite to said first substrate, the method comprising: forming an organic film below said reflection electrode film and said transparent electrode film to substantially the same film thickness, said organic film comprising an irregular surface having irregularities and formed below said reflection electrode film and said transparent electrode film, and said forming said organic film comprising: forming a half-tone mask having a transmission portion, a shielding portion and a transflective portion in said pixel region; and in said pixel region, using said transflective portion of said mask to form said irregularities in a portion of said organic film, and using said transmission portion of said mask to form a contact hole in another portion of said organic film; forming said transparent electrode film on said irregular surface; and forming said reflection electrode film on said transparent electrode film, said forming said reflection electrode film comprising: forming a barrier metal film of the reflection electrode film on the transparent electrode film and a reflection metal film of the reflection electrode film on the barrier metal film, the barrier metal film and reflection metal film each comprising a thickness of 100 nm or more; forming a resist pattern on said reflection electrode film, said resist pattern overlapping said reflection electrode film and an edge portion of said transparent electrode film, said forming said resist pattern comprising developing said resist pattern by using a developer, said overlapping resist pattern inhibiting said developer from contacting said edge portion of said transparent electrode film; and etching said reflection electrode film using said resist pattern such that said reflection electrode film overlaps said edge portion of said transparent electrode film by at least 2 μm around an overall periphery of said transparent electrode film.