US 11,380,868 B2 · Method of fabricating display panel, and display panel including adhesive portions having varying strengths

Abstract

A method of fabricating a display panel is provided. The method includes providing a substrate including a plurality of light emitting elements; forming a first protective layer on a side of the substrate; treating the first protective layer to obtain a first adhesive portion, a second adhesive portion, and a third adhesive portion, the third adhesive portion having an adhesive strength smaller than an adhesive strength of the first adhesive portion, and smaller than an adhesive strength of the second adhesive portion; and removing the third adhesive portion from the substrate to form a bendable portion of the substrate. The bendable portion of the substrate spaces apart a first portion of the substrate from a second portion of the substrate.

Claims20

Dependent claims

A method of fabricating a display panel, comprising:

providing a substrate comprising a plurality of light emitting elements;
forming a first protective layer on a side of the substrate;
treating the first protective layer to obtain a first adhesive portion, a second adhesive portion, and a third adhesive portion, the third adhesive portion having an adhesive strength smaller than an adhesive strength of the first adhesive portion, and smaller than an adhesive strength of the second adhesive portion;
and
removing the third adhesive portion from the substrate, thereby forming a bendable portion of the substrate;
wherein the bendable portion of the substrate spaces apart a first portion of the substrate from a second portion of the substrate.

3 more elements

A display panel, comprising:

a display substrate comprising a first portion, a second portion, and a bendable portion connecting the first portion and the second portion;
and
a first protective layer comprising a first adhesive portion adhered to the first portion of the display substrate, and a second adhesive portion adhered to the second portion of the display substrate;
wherein the display substrate bends about the bendable portion of the display substrate;
the second adhesive portion and a part of the first adhesive portion are sandwiched between the second portion of the display substrate and a part of the first portion of the display substrate;
the first adhesive portion, the second adhesive portion, and the display substrate defines a gap extending substantially along a first direction from a first lateral side of the display substrate to a second lateral side of the display substrate opposite to the first lateral side;
and
the first protective layer has an adhesive strength in a range of 500 gf/inch to 5000 gf/inch.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/626,561Filed 26 Jun 2019

Priority

CN 201811531269.714 Dec 2018

Published

US 2021/0408455 A130 Dec 2021

Granted

5 Jul 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

H10K 77/111
Substrates, e.g. flexible substrates: flexible substrates
H10K 59/873
Passivation; Containers; Encapsulations: encapsulations
G02F 1/133305
Constructional arrangements; Manufacturing methods: flexible substrates, e.g. plastics, organic film
G09F 9/301
In which the desired character or characters are formed by combining individual elements: flexible foldable or roll-able electronic displays, e.g.…

Method of fabricating display panel, and display panel including adhesive portions having varying strengths

Life of this patent

Method of fabricating display panel, and display panel including adhesive portions having varying strengths

Life of this patent

Abstract

Claims20