公开(公告)号：US11543696B2

公开(公告)日：2023-01-03

申请号：US16516236

申请日：2019-07-18

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Hung-Shan Chen ,  Ming-Syuan Chen ,  Ming-Shu Hsiao ,  Cheng-Hung Chi ,  Kuan-Ming Chen ,  Chin-Jung Tsai ,  Yi-Nung Liu

IPC: G02F1/1335 ,  G02F1/1333

Abstract: A liquid crystal element includes a substrate, a diffractive optical element layer, and a liquid crystal material. The diffractive optical element layer has an uneven surface. The liquid crystal material is between the substrate and the uneven surface of the diffractive optical element layer. The liquid crystal material is disposed contiguously with the uneven surface of the diffractive optical element layer.

公开(公告)号：US11494926B1

公开(公告)日：2022-11-08

申请号：US17364920

申请日：2021-07-01

Applicant: HIMAX TECHNOLOGIES LIMITED ,  LIQXTAL TECHNOLOGY INC.

Inventor： Biing-Seng Wu ,  Pen-Hsin Chen ,  Ching-Wen Wang ,  Cheng-Che Tsai ,  Hung-Shan Chen ,  Yi Hung ,  Ming-Syuan Chen ,  Hsueh-Tsung Lu ,  Wu-Feng Chen

IPC: G06T7/521 ,  H04N5/232 ,  G01S17/89 ,  G01S17/86

Abstract: A method for performing hybrid depth detection with aid of an adaptive projector and associated apparatus are provided. The method includes: utilizing an image processing circuit to obtain distance information; utilizing the image processing circuit to determine a distance range according to the distance information; utilizing the image processing circuit to perform projection type selection to determine at least one selected projection type corresponding to the distance range among multiple predetermined projection types; utilizing the adaptive projector to perform projection of the at least one selected projection type to capture at least one corresponding image with a camera, and utilizing the image processing circuit to perform depth detection according to corresponding image to generate depth map; and utilizing the image processing circuit to selectively output the depth map as resultant depth map or perform depth data combination to generate combined depth map as resultant depth map.

公开(公告)号：US10816858B2

公开(公告)日：2020-10-27

申请号：US16172879

申请日：2018-10-29

Applicant: Liqxtal Technology Inc. ,  HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Hung-Shan Chen ,  Ming-Syuan Chen

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/29

Abstract: An electrically tunable optical phase modulation element includes a first substrate, a second substrate, a liquid crystal layer, a transparent layer, a first compensation layer. The second substrate is opposite to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. The transparent layer is between the first substrate and the liquid crystal layer. The transparent layer has a first portion and a second portion. The first compensation layer is in between the first portion and the second portion of the transparent layer. The first compensation layer has a flat surface adjacent the liquid crystal layer.