Patent ID: 6444255
Filing Date: 2002-09-03
Classification: H01L

Abstract:
A method for producing a liquid crystal display having an electrode substrate, comprising the steps of:a step of providing an electrode substrate having active element parts, an organic resin disposed on said active element parts, and pixel electrodes disposed on said organic resin and connected with said active element parts via said organic resin; a first cleaning step of brush cleaning the electrode substrate with a first hydrogen gas dissolved water produced by a hydrogen gas being dissolved in purified water; a step of forming an alignment layer made of organic material on said electrode substrate; and a second cleaning step of ultrasonic cleaning said alignment layer formed on said electrode substrate with a second hydrogen gas dissolved water produced by a hydrogen gas being dissolved in purified water, wherein said first and second hydrogen gas dissolved water have a dissolved hydrogen gas concentration of not less than 0.5 PPM, and a pH of 7 to 12.