US 12,066,701 B2
Display device
Chiaki Minari, Kameyama (JP); Naru Usukura, Kameyama (JP); and Ryuzo Yuki, Kameyama (JP)
Assigned to Sharp Display Technology Corporation, Kameyama (JP)
Filed by Sharp Display Technology Corporation, Kameyama (JP)
Filed on Jul. 31, 2023, as Appl. No. 18/228,018.
Claims priority of application No. 2022-124838 (JP), filed on Aug. 4, 2022.
Prior Publication US 2024/0061284 A1, Feb. 22, 2024
Int. Cl. G02F 1/133 (2006.01); G02F 1/1334 (2006.01); G02F 1/137 (2006.01)
CPC G02F 1/13312 (2021.01) [G02F 1/13345 (2021.01); G02F 1/137 (2013.01); G02F 2202/04 (2013.01); G02F 2203/02 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel; and
a control unit,
wherein the display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel, and
the control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.