公开(公告)号：US11774841B2

公开(公告)日：2023-10-03

申请号：US17072229

申请日：2020-10-16

Applicant: AGC Inc.

Inventor： Yukihiro Tao ,  Naruki Yamada ,  Osamu Iwata ,  Yoshinori Iguchi ,  Yusuke Sato ,  Yoko Mitsui ,  Tsuneo Ichimatsu

IPC: G03B21/62 ,  B29D11/00 ,  G03B21/625 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/60 ,  B29K701/12

CPC classification number: G03B21/62 ,  B29D11/00269 ,  G03B21/56 ,  G03B21/60 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  B29K2701/12

Abstract: There are provided a video projecting structure, which is capable of having not only transparency but also high visibility of a video, a process for producing the same, and a video display system including the video projection structure.
A video projecting structure includes a first transparent layer having irregularities disposed on a surface thereof, a reflective layer disposed on the surface of the first transparent layer, and a second transparent layer disposed on the reflective layer; wherein when a surface of the first transparent layer opposite to the reflective layer is defined as a reference surface, the irregularities include a plurality of slant surfaces slant to the reference surface and reflecting light from a video; wherein when a first direction, a second direction and a third direction are defined such that the first direction is perpendicular to a normal direction of the reference surface, the slant surfaces extend in the first direction, the second direction is orthogonal to the first direction, the slant surfaces are arrayed in the second direction, and the third direction is a direction in which the slant surfaces have an average slant angle θ to the reference surface in section in the second direction; the irregularities include a portion which is configured such that when an average spacing Sm1 of the irregularities in the first direction, an average spacing Sm2 of the irregularities in the second direction and an average spacing Sm3 of the irregularities in the third direction are such that Sm2>Sm1 and Sm3>Sm1 are met, and Sm2 is maximum; and wherein the irregularities include a portion which is configured such that when a frequency distribution of inclinations of the irregularities in the second direction to the reference surface is measured in 0.25° divisions in every distance of 1 mm in order that the frequencies are represented as distances, the absolute value of a median value in the frequency distribution is a value other than 0°.

公开(公告)号：US11735139B2

公开(公告)日：2023-08-22

申请号：US17452804

申请日：2021-10-29

Applicant: AGC Inc.

Inventor： Naruki Yamada ,  Yukihiro Tao ,  Yoshinori Iguchi ,  Osamu Iwata

IPC: G09G5/10 ,  G02B27/01 ,  G09G3/00

CPC classification number: G09G5/10 ,  G09G3/002 ,  G09G2360/141 ,  G09G2360/144 ,  G09G2380/10

Abstract: A display-system includes a transparent-display-body having a first-surface and a second-surface opposite to the first-surface, a sensor to detect a brightness of the transparent-display-body or a brightness around the transparent-display-body, an arithmetic-unit configured to derive, based on the brightness detected by the sensor, a background luminance caused by outside-light as when the transparent-display-body is viewed from a side of the second-surface, and a controller to cause video to be displayed on the first-surface, wherein where rear-show-through-luminance that is a luminance of the video that occurs on the side of the second-surface is denoted as BB and the background luminance is denoted as SB, the controller controls a video luminance in accordance with the background luminance derived by the arithmetic-unit such that (BB/SB) is less than or equal to a predetermined-contrast-value, the video luminance being a luminance at which the video is to be displayed on the first-surface.