Method for manufacturing an organic light emitting display panel and related organic light emitting display panel

Patent metadata

Field	Value
Publication number	US-9412946-B2
Application number	US-201414201940-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	May 22, 2013
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A method for manufacturing an organic light emitting display panel is disclosed. The organic light emitting display panel includes a substrate. The method includes forming a plurality of bank arrays, each of which has a plurality of banks, utilizing a plurality of ink-jet heads, each of which has a plurality of nozzles arranged alternately, to move relative to the substrate along a moving direction perpendicular to a border of the substrate, and utilizing at least one of the plurality of nozzles to drop organic light emitting ink for forming at least one organic light emitting pixel in at least one bank. An oblique angle is formed between an arrangement direction of the plurality of banks and the border of the substrate. Each ink-jet head forms the oblique angle cooperatively with the border of the substrate.

First claim

What is claimed is:

1. A method for manufacturing an organic light emitting display panel, the organic light emitting display panel comprising a substrate, the method comprising:
forming a plurality of bank arrays on the substrate, each bank array having a plurality of banks for containing organic light emitting ink, an oblique angle being formed between an arrangement direction of the plurality of banks and a border of the substrate;
utilizing a plurality of ink-jet heads to move relative to the substrate along a moving direction perpendicular to the border of the substrate, each ink-jet head forming the oblique angle cooperatively with the border of the substrate and having a plurality of nozzles arranged alternately; and
utilizing at least one of the plurality of nozzles to drop organic light emitting ink for forming at least one organic light emitting pixel in at least one bank;
wherein the oblique angle substantially conforms to the following equation:
the oblique angle =cos−1[(a distance between two adjacent bank arrays)/(a distance between two adjacent nozzles on each ink-jet head)].

2. The method of claim 1 , wherein the step of utilizing at least one of the plurality of nozzles to drop organic light emitting ink for forming at least one organic light emitting pixel in at least one bank comprises:
utilizing the plurality of ink-jet heads to drop organic light emitting ink for forming a plurality of organic light emitting pixels on the substrate in a mosaic arrangement or a stripe arrangement.

3. The method of claim 1 , wherein a longitudinal direction of each bank forms the oblique angle cooperatively with the border of the substrate.

Assignees

• Au Optronics Corp

Inventors

• Chen Peng-Yu
• Lee Chia-Hwa

Classifications

• H01L51/0005 Primary

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K71/135 Primary

  using ink-jet printing · CPC title