公开(公告)号：EP3855243A1

公开(公告)日：2021-07-28

申请号：EP19863666.4

申请日：2019-09-20

Applicant: Toppan Printing Co., Ltd.

Inventor： OHKUBO Wataru ,  SAKAMOTO Masanori

IPC: G02F1/13 ,  E06B9/24 ,  G02F1/133 ,  G02F1/1343 ,  G09G3/00 ,  G09G3/20 ,  G09G3/36

Abstract: A light control device includes: a drive voltage output unit configured to output a drive voltage; a control unit configured to cause the drive voltage output unit to gradually increase or gradually decrease the magnitude of the drive voltage; and a plurality of light control units connected in parallel to the drive voltage output unit. The light transmittances of the light control units change in accordance with the magnitudes of voltages applied to the light control units. The light control device further includes a voltage dividing circuit that is connected to one of the plurality of light control units and is configured to divide the drive voltage in common to each of the light control units to make the magnitude of the voltage applied to the light control unit connected to the voltage dividing circuit different from the magnitude of the voltage applied to at least one of other light control units.