Method for manufacturing a light emission display panel

• US 6,921,309 B2
• Filed: 04/17/2003
• Issued: 07/26/2005
• Est. Priority Date: 05/09/1997
• Status: Expired due to Fees

• Current Assignee: Pioneer Electronic Corporation (Pioneer Corporation), Tohoku Pioneer Electronic Corp (Pioneer Corporation)
• Original Assignee: Pioneer Electronic Corporation (Pioneer Corporation), Tohoku Pioneer Electronic Corp (Pioneer Corporation)
• Inventors: Miyaguchi, Satoshi, Ohshita, Isamu
• Primary Examiner(s): Guharay, Karabi
• Application Number:
  US10/417,178
• Publication Number:
  US 20030201715A1
• Time in Patent Office: 831 Days
• Field of Search: 313500-512, 445/24, 445/46, 445/49, 427/66, 427/68, 427/69, 428/690, 428/917, 151/693, 151/691
• US Class Current: 445/24
• CPC Class Codes: H10K 59/17 Passive-matrix OLED displays
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/621 Providing a shape to conductive layers, e.g. patterning or selective deposition

Abstract

A light emission display panel has a substrate, a plurality of first electrodes on the substrate, a light emission layer on the first electrodes, and a plurality of second electrodes. Each of the second electrodes has a form of a strip film in which partially overlapped portions are provided.

Claims

1. A method for manufacturing a light emission display panel having a substrate, a plurality of first electrodes on the substrate, a light emission layer on the first electrodes, and a plurality of second electrodes, comprising the steps of:

providing a mask in which a plurality of openings are formed along lines corresponding to the second electrodes, interposing a predetermined space between every two adjacent openings along the lines, each of the openings having a width equal to the width of the second electrodes;

mounting the mask on the light emission layer so that each of the openings corresponds to at least one of the first electrodes;

forming a film in each opening by a material for the second electrode;

shifting the mask by a pitch smaller than said space or shorter than a length of each opening; and

forming a film in each opening of the shifted mask, whereby the second electrodes are formed,

wherein adjacent openings are spaced apart from each other by at least a distance equal to a length of the opening in an extending direction of the second electrode.

2. The method according to claim 1 wherein a distance between adjacent openings is an integer multiple of length of the opening in the extended direction of the second electrode.

3. A method for manufacturing a light emission display panel having a substrate, a plurality of first electrodes on the substrate, a light emission layer on the first electrodes, and a plurality of second electrodes, comprising the steps of:

providing a mask in which a plurality of openings, each having an entire length of the second electrode, are parallely formed, interposing a space between every two adjacent openings, each space having a width corresponding to at least twice the width of said second electrode;

mounting the mask on the light emission layer so that each of the openings corresponds to each of the first electrodes in a mutually orthogonal relation;

forming a film in each opening by a material for the second electrode;

shifting the mask in a direction perpendicular to the length of the second electrodes by a pitch smaller than said space; and

forming a film in each opening of the shifted mask, whereby the second electrodes are formed.