Method of manufacturing liquid crystal display by dispensing liquid crystal droplets on exposure joint lines
View Patent ↗The invention relates to a method of manufacturing a liquid crystal display for which the one drop filling method is used to fill the gap between the substrates thereof and provides a method of manufacturing a liquid crystal display which can achieve high display characteristics. Droplets of a liquid crystal are dispensed in positions associated with exposure joint lines at boundaries between respective couples of adjoining regions to be exposed. Since this prevents stripe-like irregularities and grid-like irregularities from overlapping each other, display irregularities become less visually perceptible.
1. A method of manufacturing a liquid crystal display, comprising the steps of:
forming a pattern layer on an array substrate by dividing a surface of the substrate into a plurality of regions to be exposed and performing divisional exposure for exposing each of the regions to be exposed;
dispensing a plurality of droplets of a liquid crystal in a matrix of rows and columns onto at least either the array substrate or an opposite substrate provided opposite to the array substrate such that centers of droplets of the liquid crystal are dispensed to deliberately coincide with center positions on a linear horizontal exposure joint line at boundaries between each of the regions to be exposed adjacent to each other and with center positions on each linear vertical exposure joint line of a plurality of exposure joint lines at boundaries between each of the regions to be exposed adjacent to each other; and
combining the array substrate and the opposite substrate in vacuum in a face-to-face relationship with each other and restoring the atmospheric pressure to spread and seal the plurality of droplets of the liquid crystal between the array substrate and the opposite substrate.
2. A method of manufacturing a liquid crystal display according to claim 1 , wherein the plurality of droplets of the liquid crystal are dispensed onto the array substrate.
3. A method of manufacturing a liquid crystal display according to claim 1 , wherein the exposure joint line is in parallel with at least either a plurality of gate bus lines formed on the array substrate or a plurality of drain bus lines formed across the plurality of gate bus lines.
4. A method of manufacturing a liquid crystal display according to claim 1 , wherein the plurality of droplets of the liquid crystal are dispensed at predetermined equal intervals in a direction substantially orthogonal to at least one of the exposure joint lines.
5. A method of manufacturing a liquid crystal display according to claim 4 , wherein some of the liquid crystal is dispensed close to one of the exposure joint lines making the amount of one droplet of the liquid crystal smaller relative to a predetermined total amount dispensed.
6. A method of manufacturing a liquid crystal display according to claim 1 , wherein each intersection of the horizontal exposure joint line and the vertical exposure joint lines has one of the droplets of the liquid crystal centered thereon.