Lg Electronics Inc.

Snu Rdb Foundation

Hyunsik Yoon

Sangho Lee

Kyoungjoung Kim

Hyunhee You

Kyungho Lee

Kookheon Char

Sangkyu Kang

Jeonghoon Park

Hong Hie Lee

Jihwan Lim

Kahp-Yang Suh

Yangsik Kim

Taesoon Kim

An image projection apparatus according to an embodiment of the present invention senses the distance to an image projection area to which an image is projected, and determines an image projection state including a state of at least one of the image projection area and a space between the image projection apparatus and the image projection area, on the basis of the sensed distance. The image projection apparatus projects an image onto the image projection area on the basis of the determined image projection state.

Image projection apparatus and operation method thereof

The present invention relates to an optical film comprising a substrate on which an array of structures is formed, wherein a material having a different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated on the surface of the structures, and a manufacturing method thereof. Specifically, the optical film according to one embodiment of the present invention may have a different transparency depending on the direction or can transmit light asymmetrically. Further, the optical film may be applicable to image devices, which need to change brightness or images depending on the angle of view or to display three-dimensional images.

Optical film with partially coated structure array and manufacturing method thereof

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Seoul, South Korea

Hyunsik Yoon