Back to results
US 11,448,934 B2Granted
Optical device
AssigneeLG Chem, Ltd.
InventorsNam Hun Kim, Seong Min Lee, Byoung Kun Jeon, Su Young Ryu, Jung Woon Kim, Young Shin Lee
Life of this patent
Estimating the term…
Abstract
An optical device is provided in the present application. The present application provides an optical device capable of varying transmittance, and such optical device can be used for various applications, such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
Claims14
An optical device, comprising:
- first and second outer substrates disposed to face each other;
- and
- an active liquid crystal element encapsulated between the first and second outer substrates,
- wherein at least one of the first or second outer substrates is a curved substrate, wherein the active liquid crystal element comprises two base films disposed opposite to each other and an active liquid crystal layer between the two base films,
- wherein the active liquid crystal element is encapsulated with an adhesive film, wherein the adhesive film is disposed at least between the active liquid crystal element and the first or the second outer substrate,
- wherein a thickness at a center of gravity of the optical device is thinner than a thickness of a rim of the optical device at its rim,
- wherein the first outer substrate and the second outer substrate are bent in the same direction at the rim,
- wherein a thickness of each of the first and second outer substrates is 1 mm or more and a curvature radius of each of the first and second outer substrates is 2,000R or less.
5 more elements
An optical device, comprising:
- first and second outer substrates disposed to face each other;
- and
- an active liquid crystal element encapsulated between the first and second outer substrates,
- wherein at least one of the first and second outer substrates is a curved substrate,
- wherein the active liquid crystal element comprises two base films disposed opposite to each other and an active liquid crystal layer between the two base films,
- wherein the active liquid crystal element is encapsulated with an adhesive film,
- wherein the adhesive film is at least between the active liquid crystal element and the first or the second outer substrate,
- wherein a thickness of the optical device at its center of gravity is thinner than a thickness of the optical device at its rim,
- wherein the first and second outer substrates are bent in the same direction at the rim, and
- wherein a thickness of each of the first and second outer substrates is 2 mm or more and a curvature radius of each of the first and second outer substrates is 3,000R or less.
7 more elements
Dependencies are inferred from the claim text.