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:
Nov. 25, 2003
Filed:
Feb. 15, 2001
Tien-Rong Lu, Tainan, TW;
RiTdisplay Corporation, Hsin Chu Industrial Park, TW;
Abstract
A method for forming a pixel-defining layer on an OLED panel comprises the following steps: (A) providing a substrate; (B) forming plurality of electrodes on the substrate; (C) coating a layer of anti-glare compositions comprising non-photosensitive polyimide and light-absorbing pigments or dyes on the substrate; (D) first prebaking the substrate with the layer of the anti-glare compositions; (E) coating a layer of photoresist compositions on the layer of anti-glare compositions; (F) second prebaking the substrate with the anti-glare compositions and the photoresist; (G) forming patterns of the photoresist through exposing the substrate to masked radiation, developing the photoresist on the substrate, etching the layer of the anti-glare compositions and the photoresist at the same time to form patterned layers of the anti-glare polyimide or polyimide precursor compositions and patterned photoresist; and (I) baking the substrate with the patterned anti-glare polyimide or polyimide precursor compositions for crosslinking or curing to form the anti-glare pixel-defining layers.