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公开(公告)号：US09599846B2
公开(公告)日：2017-03-21
申请号：US14328872
申请日：2014-07-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sun-kwon Kim , Do-kyoon Kim , Kee-chang Lee , Glenn Mangelinckx , Jeroen Beeckman
CPC classification number: G02F1/13306 , G02F1/13475 , G02F1/13725 , G02F1/1392
Abstract: Provided are methods of switching guest-host dual frequency liquid crystals by using a back flow. In the case of a shutter having a dual frequency liquid crystal layer between two transparent substrates, such a method includes: applying a first voltage having a first frequency to the dual frequency liquid crystal layer; and applying a second voltage having a second frequency to the dual frequency liquid crystal, the second frequency being higher than the first frequency, wherein the second voltage is higher than a threshold voltage that generates a back flow around liquid crystals of the dual frequency liquid crystal layer, and the first voltage is lower than the threshold voltage.
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公开(公告)号：US09749613B2
公开(公告)日：2017-08-29
申请号：US14247907
申请日：2014-04-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yong-hwa Park , Sun-kwon Kim , Hee-sun Yoon
CPC classification number: H04N13/271 , G01S7/4914 , G01S17/36 , G01S17/89 , G06T5/003 , G06T5/50 , G06T2207/10016 , G06T2207/10028 , G06T2207/20201 , H04N5/23264
Abstract: Provided are a three-dimensional (3D) image acquisition apparatus, and a method of generating a depth image in the 3D image acquisition apparatus. The method may include sequentially projecting a light transmission signal, which is generated from a light source, to a subject, modulating reflected light, which is reflected by the subject, using a light modulation signal, calculating a phase delay using a combination of a first plurality of images of two groups, from among a second plurality of images of all groups obtained by capturing the modulated reflected light, and generating a depth image based on the phase delay.
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