Optical member, cover window, and electronic device including the same
AssigneeSamsung Display Co., Ltd.
InventorsJongseok Joo, Taehee Kim, Hyunho Jeong
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Abstract
An optical member and a cover window for a display device. The optical member includes three stacked units, each of which includes a high-refractive-index layer, and a low-refractive-index layer directly disposed on the high-refractive-index layer and having a lower refractive index than the high-refractive-index layer by about 0.3 or more, and among which the high-refractive-index layer of the second stacked unit has a thickness of about 250 nm to about 410 nm.
Claims20
An optical member comprising three stacked units, each stacked unit includes a high-refractive-index layer and a low-refractive-index layer directly disposed on the high-refractive-index layer, the low-refractive-index layer having a refractive index lower than a refractive index of the high-refractive-index layer by about 0.3 or more,
- wherein the three stacked units include a first stacked unit, a second stacked unit, and a third stacked unit which are stacked in a thickness direction, and
- the high-refractive-index layer of the second stacked unit has a thickness of about 250 nm to about 410 nm.
A cover window comprising:
- a base substrate;
- and
- an optical member including a first stacked unit, a second stacked unit, and a third stacked unit which are sequentially stacked on the base substrate,
- wherein the first to third stacked units each include a high-refractive-index layer, and a low-refractive-index layer directly disposed on the high-refractive-index layer, the low-refractive-index layer having an index of refraction lower than an index of refraction of the high-refractive-index layer by about 0.3 or more, and
- the high-refractive-index layer of the second stacked unit has a thickness of about 250 nm to about 410 nm.
An electronic device comprising:
- a display module configured to generate an image;
- and
- a cover window disposed on the display module,
- wherein the cover window includes
- a base substrate disposed adjacent to the display module, and
- an optical member including a first stacked unit, a second stacked unit, and a third stacked unit which are sequentially stacked on the base substrate, and
- the first to third stacked units each include a high-refractive-index layer, and a low-refractive-index layer directly disposed on the high-refractive-index layer, the low-refractive-index layer having an index of refraction lower than an index of refraction of the high-refractive-index layer by about 0.3 or more, and
- the high-refractive-index layer of the second stacked unit has a thickness of about 250 nm to about 410 nm.
Dependencies are inferred from the claim text.