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US 2022/0045305 A1Published application
Flexible Cover Window and Flexible Device Including the Same
AssigneesSK Innovation Co., Ltd., SK ie technology Co., Ltd.
InventorsHyun Joo Song, Hye Jin Kim, Min Sang Park, Keon Hyeok Ko
Life of this patent
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Abstract
Provided are a flexible cover window and a flexible device including the same. More particularly, a flexible cover window which has excellent visibility and is flexible and a flexible device including the same are provided.
Claims14
A flexible cover window on a display, the flexible cover window comprising:
- a polarizing plate on an organic light emitting diode and a polyimide film layer on the polarizing plate,
- wherein the polyimide film layer has one or two or more layers of polyimide-based films having an in-plane retardation of 300 nm or less as measured at a wavelength of 550 nm, and an angle between an in-plane slow axis (optic axis) of the polyimide-based film which is adjacent to the polarizing plate and a transmittance axis or an absorption axis of the polarizing plate is 20° or less.
Dependencies are inferred from the claim text.