公开(公告)号：US10678359B2

公开(公告)日：2020-06-09

申请号：US16134471

申请日：2018-09-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eunhyoung Cho ,  Bonwon Koo ,  Hyunjoon Kim ,  Haesung Kim ,  Jungyun Won

IPC: G06F3/041 ,  H01L27/32 ,  G06K9/00 ,  G06F3/044

Abstract: Provided are a pattern structure for preventing a moiré pattern from becoming visible, and a display apparatus using the same. The pattern structure includes a first element pattern including a plurality of first elements arranged regularly at a first pitch; a second element pattern including a plurality of second elements arranged regularly at a second pitch, the second element pattern being provided on the first element pattern; and a filling layer configured to fill gaps among the plurality of second elements, between adjacent ones thereof. A difference between transmittances of the second element and the filling layer is about 5% or less and thus, a moiré pattern occurring due to the overlapping of the first element pattern and the second element pattern may be prevented from becoming visible.

公开(公告)号：US12153191B2

公开(公告)日：2024-11-26

申请号：US17726064

申请日：2022-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngchul Leem ,  Jeongyub Lee ,  Haesung Kim

IPC: G02B1/00

Abstract: An optical device forms a refractive index distribution for exhibiting a certain phase delay profile with respect to light in a visible light wavelength, and includes a nanopattern layer including a crystalline compound having a refractive index greater than 3 with respect to the light in the visible light wavelength band and a height equal to or less than 2 μm. The nanopattern layer may include the crystalline compound grown according to a selective epitaxial growth method, and accordingly, may have a height beneficial for a manufacturing process. Thus, the efficiency of the optical device may be improved.