Title:
LIGHT ADJUSTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059868
Kind Code:
A1
Abstract:
This light adjusting device is provided with 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 adjusting units connected in parallel to the drive voltage output unit. The light transmittance of the light adjusting units changes in accordance with the magnitude of the voltage applied to the light adjusting unit. The light adjusting device is additionally provided with a voltage-dividing circuit which is connected to one of the plurality of light adjusting units, and which is configured to divide the drive voltage, which is common to each light adjusting unit, and to make the magnitude of the voltage applied to the light adjusting unit connected to the voltage-dividing circuit differ from the magnitude of the voltage applied to at least one other light adjusting unit.
Inventors:
OHKUBO WATARU (JP)
SAKAMOTO MASANORI (JP)
SAKAMOTO MASANORI (JP)
Application Number:
PCT/JP2019/037083
Publication Date:
March 26, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
G02F1/13; E06B9/24; G02F1/133; G02F1/1343; G09G3/00; G09G3/20; G09G3/36
Foreign References:
| JP2018060128A | 2018-04-12 | |||
| JPS62209412A | 1987-09-14 | |||
| JP2018060128A | 2018-04-12 |
Other References:
See also references of EP 3855243A4
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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