The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Feb. 26, 2001
Tien-Rong Lu, Tainan, TW;
Yih Chang, Chung-Ho, TW;
Ritdisplay Corporation, Hsin Chu Industrial Park, TW;
Abstract
A method of the invention for forming a pixel-defining layer on an OLED panel is disclosed. The method of the invention for forming a pixel-defining layer on an OLED panel, comprising following steps: (A) providing a substrate; (B) forming a plurality of first electrodes in parallel stripes on said substrate; (C) coating a layer of non-photosensitive polyimide or polyimide precursor compositions on said substrate; (D) first prebaking said substrate; (E) coating a layer of photoresist compositions on said layer of non-photosensitive polyimide or polyimide precursor compositions; (F) second prebaking said substrate; (G) forming patterns of said photoresist by exposing said substrate to masked radiation and developing said photoresist; (H) etching said layer of said non-photosensitive polyimide or polyimide precursor compositions to form patterned polyimide or polyimide precursor compositions; (I) releasing or stripping said patterned layer of said photoresist compositions; and (J) baking said substrate with patterned non-photosensitive polyimide or polyimide precursor compositions to form said pixel-defining layer.