Transparent composite film and flexible display devices including the same
AssigneeCorning Incorporated
InventorsJun Hou, Kevin Robert McCarthy
Life of this patent
Estimating the term…
Abstract
Described herein are articles and methods of making articles, including a transparent composite film having a fiber filler embedded in a polymer network. The polymer network of the transparent composite film is a cured, cross-linked matrix including a first and second structure segment. The structure segments may contribute or impart improved properties in the transparent composite film. The select structure segments can provide increased modulus and reduced glass transition temperature thereby allowing for a desirable balance of flexibility and rigidity in the transparent composite film. The improved transparent composite film is suitable for many applications including use in display devices.
Claims31
A transparent composite film comprising a fiber filler embedded in a cross-linked polymer network, the network comprising a combination of a first structure segment of formula (1) or formula (2):
- and a second structure segment of formula (3) or formula (4):
- the cross-linked polymer network being obtained from a thermal or radiation cure of a composition comprising:
- a first oligomer comprising a refractive index lower than that of the fiber filler;
- a second oligomer comprising a refractive index higher than that of the first oligomer;
- and
- a monomer comprising a refractive index higher than that of the fiber filler,
- wherein the refractive index difference between the transparent cross-linked polymer network and the fiber filler is ≤ about 0.01.
A transparent composite film comprising a fiber filler embedded in a cross-linked polymer network, the network comprising a combination of a first structure segment of formula (1) or formula (2):
- and a second structure segment of formula (3) or formula (4):
- wherein the fiber filler comprises glass fibers or quartz fibers, wherein the fiber filler comprises a woven fabric, and wherein the woven fabric of fibers comprises an average thickness of about 200 μm or less and the fibers comprise an average diameter of about 25 μm or less.
A transparent composite film comprising a fiber filler embedded in a cross-linked polymer network, the network comprising a combination of a first structure segment of formula (1) or formula (2):
- and a second structure segment of formula (3) or formula (4):
- wherein the fiber filler is a woven fabric of glass fibers and the fabric comprises an average thickness of about 15% or more of the average total thickness of the transparent composite film.
Dependencies are inferred from the claim text.