Patent ID: 7812920
Filing Date: 2010-10-12
Classification: G02F,G03F

Abstract:
1. A method of producing a substrate for a liquid crystal display that exposes and forms a pattern of a color filter or a black matrix on a TFT substrate in which a thin film transistor is provided for each pixel, and a wiring for driving the thin film transistor is provided around the pixel, the method comprising the steps of: applying photosensitive material of the color filter or the black matrix onto the TFT substrate; image-capturing the pixel of the TFT substrate by a line CCD in which photodetectors are arranged in one line in a direction orthogonal to a transporting direction of the TFT substrate when the TFT substrate is transported at a constant velocity in one direction, the image-capturing position of the line CCD being on the near side of an exposure position of the pattern in the transporting direction of the TFT substrate; detecting a reference position preset in a corner section of the pixel that has been image-captured; irradiating with exposure light for a predetermined period of time, when the TFT substrate is transported by a predetermined distance after the reference position is detected and after an expected exposure position on the TFT substrate reaches the exposure position of the pattern; and exposing and forming the pattern of the color filter or the black matrix in the expected exposure position on the TFT substrate.