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US 10,328,619 B2Granted
Protection film and method for manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsKang-Yong Lee, HwanJin Kim
Life of this patent
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Abstract
A method of manufacturing a protection film includes performing a first foaming of a first part of a base material on a substrate to form a bumper layer having first bubbles foamed with a first foaming ratio, and performing a second foaming of a second part of the base material to form a light blocking layer having second bubbles foamed with a second foaming ratio.
Claims15
A method of manufacturing a protection film comprising:
- injecting a foaming gas into a unitary base material;
- performing a first foaming of a first part of the unitary base material on a substrate to form a bumper layer having first bubbles foamed with a first foaming ratio;
- and
- performing a second foaming of a second part of the unitary base material to form a light blocking layer having second bubbles foamed with a second foaming ratio different from the first foaming ratio,
- wherein the performing of the first and second foamings use expansion of the foaming gas.
2 more elements
Dependencies are inferred from the claim text.