公开(公告)号：US10096288B2

公开(公告)日：2018-10-09

申请号：US15281461

申请日：2016-09-30

Applicant: Japan Display Inc.

Inventor： Atsunori Oyama

IPC: G09G3/34 ,  G02F1/1334 ,  G02F1/1335 ,  G09G3/20 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1347

Abstract: A display device according to an aspect of the present invention includes: a polymer dispersed liquid crystal panel; a light source device that emits illumination light to an end surface of the polymer dispersed liquid crystal panel; a video signal control unit that corrects a video signal to generate a video control signal, the video signal being corrected so as to cancel a change in a color of the illumination light when the illumination light propagates through inside the polymer dispersed liquid crystal panel; and a display panel that modulates the illumination light that has propagated through the inside of the polymer dispersed liquid crystal panel and is scattered by the polymer dispersed liquid crystal panel, based on the video control signal.

公开(公告)号：US11908229B2

公开(公告)日：2024-02-20

申请号：US17646754

申请日：2022-01-03

Applicant: Japan Display Inc.

Inventor： Kazuhide Mochizuki ,  Takashi Nakamura ,  Atsunori Oyama

IPC: G06V40/13 ,  G06F3/041 ,  G06V40/145 ,  G06V40/12

CPC classification number: G06V40/1318 ,  G06F3/04164 ,  G06V40/1365 ,  G06V40/145

Abstract: According to one embodiment, a biometric authentication device includes a sensor and an illumination device. The sensor includes a first base material, a plurality of photoelectric conversion elements and a first control unit. The illumination device includes a second base material, a plurality of light emitting elements and a second control unit. Upon lighting the light emitting element at a predetermined position in the groups of the light emitting elements by the second control unit, the first control unit controls the operation of the photoelectric conversion elements so as to acquire a signal from the photoelectric conversion elements at predetermined positions of the groups of the photoelectric conversion elements.