| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems wherein the flaws or the like on a glass surface are enlarged and flatness is deteriorated in a chemical polishing step for reducing the thickness of a glass substrate for a liquid crystal display device. SOLUTION: The enlargement of the flaws is suppressed and the liquid crystal display element having an excellent display surface quality is efficiently manufactured at a low cost by polishing a glass substrate surface by a chemical polishing liquid containing at a ratio of≥25 wt.% mixture solution of hydrofluoric acid and ammonium fluoride and≤30 wt.% at least one kind acid solution among hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid and acetic acid and using water as a solvent. COPYRIGHT: (C)2009,JPO&INPIT
|
