IP Library Granted Patent US 9,577,015
Granted Patent B2
US 9,577,015 · App. 14/985,278 · Granted Feb 21, 2017

Mother substrate for producing display device

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Quick Facts
Patent No.
US 9,577,015
App. No.
14/985,278
Granted
Feb 21, 2017
Kind
B2
Abstract

A method for producing a display device includes forming a resin film on a substrate, forming a plurality of light emitting elements above the resin film, forming a plurality of first grooves in a surface of the resin film, the plurality of first grooves enclosing the plurality of light emitting elements individually in a multiple-fold manner, cutting the substrate at a position overlapping any one of the plurality of first grooves other than the first groove closest to one of the plurality of light emitting elements, and peeling off the substrate from the resin layer.

Claims (12)

1. A mother substrate for producing a display device comprising:

a substrate;

a resin film on the substrate;

a plurality of light emitting elements above a first surface of the resin film opposite to a second surface of the resin film in contact with the substrate; and

a plurality of first grooves in a surface of the resin film,

wherein each of the plurality of light emitting elements is enclosed by the plurality of first grooves individually in a multiple-fold manner, and

the plurality of first grooves are configured so as to not overlap with each of the plurality of light emitting elements in a plan view and in a cross-sectional view.

2. The mother substrate for producing the display device according to claim 1 ,

wherein the plurality of first grooves are arranged in a lattice pattern enclosing the light emitting elements individually in a multiple-fold manner.

3. The mother substrate for producing the display device according to claim 1 , wherein the plurality of first grooves are arranged in a rectangular or square pattern enclosing the light emitting elements individually in a multiple-fold manner.

4. The mother substrate for producing the display device according to claim 1 , further comprising a plurality of second grooves intersecting substantially perpendicular to the plurality of first grooves.

5. The mother substrate for producing the display device according to claim 1 , wherein at least three first grooves are between two adjacent light emitting elements.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →