Flexible substrate, method of manufacturing the same, and display apparatus employing the same
AssigneeSamsung Display Co., Ltd.
InventorCheol Jang
Life of this patent
Estimating the term…
Abstract
A flexible substrate includes a polymer substrate. At least a portion of a first barrier region is formed on a neutral plane of the polymer substrate. A top region is formed above the first barrier region. A bottom region is formed below the first barrier region. The first barrier region includes a first inorganic material disposed in at least a portion of a free volume of the polymer substrate. A density of the first inorganic material in the first barrier region is greater than a density of the first inorganic material in the top or bottom regions.
Claims18
A flexible substrate comprising:
- a polymer substrate;
- a first barrier region, wherein at least a portion of the first barrier region is formed on a neutral plane of the polymer substrate;
- a top region formed above the first barrier region;
- and
- a bottom region formed below the first barrier region,
- wherein the first barrier region comprises a first inorganic material disposed in at least a portion of a free volume of the polymer substrate, and
- wherein a density of the first inorganic material in the first barrier region is greater than a density of the first inorganic material in the top or bottom regions.
The flexible stubstrate of claim.1, wherein the first inorganic material of the first barrier region tills from about 0.1% to about 50% of a free volume of the first barrier region, and wherein an average thickness of the first barrier region is equal to or less than from about 5% to about 50% of a thickness of the, polymer substrate.
A display apparatus comprising:
- a flexible substrate including a display area and a non-display area;
- a display device in the display area and a thin film transistor connected to the display device;
- and
- an encapsulation layer configured to encapsulate the display area,
- wherein the flexible substrate comprises:
- a polymer substrate;
- a first barrier region, wherein at least a portion of the first barrier region is formed on a neutral plane of the polymer substrate;
- a top region formed above the first barrier region;
- and
- a bottom region formed below the first barrier region,
- wherein the first barrier region comprises a first inorganic material disposed in at least a portion of a free volume of the polymer substrate, and
- wherein a density of the first inorganic material in the first barrier region is greater than a density of the first inorganic material in the top or bottom regions.
A polymer substrate, comprising:
- a bottom region;
- a top region;
- and
- a first barrier region formed between the bottom region and the top region, wherein the first barrier region comprises a first inorganic material disposed in at least a portion of a free volume of the polymer substrate,
- wherein a density of the first barrier region is greater than densities of the bottom region and the top region, and
- wherein densities of bottom region, the first barrier region and the top region gradually decreases from the first barrier region toward a lower surface of the bottom region and an upper surface of the top region.
Dependencies are inferred from the claim text.