Liquid crystal display device and method of fabricating the same
View Patent ↗There is provided a liquid crystal display device including a display screen comprised of a plurality of areas in each of which a pixel pattern is formed, wherein any two areas located adjacent to each other, among the areas, have at least two stitches therebetween.
1. A method of fabricating a liquid crystal display device including a step of forming a pixel pattern comprising immediately adjacent, differently colored pixel rows, in each of areas constituting a display screen, by stepping projection alignment,
said pixel pattern being formed in each of said areas for each of the pixel rows by at least twice carrying out exposure of each of said areas to light such that stitches formed in said exposures are located differently from one another for each of said pixel rows, wherein,
within one area, there are at least two exposures of the one area to light, a first of the two exposures exposing only pixel rows of first color pixels, a second of the two exposures exposing only pixel rows of second color pixels, and
each stitch resulting from the first exposure being located differently from each stitch resulting from the second exposure.
2. The method as set forth in claim 1 , wherein,
said pixel rows are further comprised of pixel rows of third color pixels, a set of said first, second and third color pixels defining a unit pixel, and
said pixel pattern forming step further comprises a third exposure of the one area to light, the third exposure exposing only pixel rows of the third color pixels, and
each stitch resulting from the first exposure being located differently from each stitch resulting from the second and third exposures,
each stitch resulting from the second exposure being located differently from each stitch resulting from the first and third exposures, and
each stitch resulting from the third exposure being located differently from each stitch resulting from the first and second exposures.
3. The method as set forth in claim 1 , wherein,
a reticle having a certain pixel pattern is commonly used for carrying out each exposure of each of said areas to light for each of said pixel rows, and a relative position between said reticle and a substrate is made different in exposure of said each of said areas to light for each of said pixel rows, and
within the one area, the reticle is located at a first stitch position for the first of the two exposures exposing only pixel rows of the first color pixels, and the reticle is located at a second stitch position for the second of the two exposures exposing only pixel rows of the second color pixels.
4. The method as set forth in claim 2 , wherein a reticle having a certain pixel pattern is commonly used for carrying out each exposure of each of said areas to light for each of said pixel rows, and a relative position between said reticle and a substrate is made different in exposure of said each of said areas to light for each of said pixel rows, and
within the one area, the reticle is located at a first stitch position for the first exposure, the reticle is located at a second stitch position for the second exposure, and the reticle is located at a third stitch position for the third exposure.