Title:
OPTICAL NODE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/118632
Kind Code:
A1
Abstract:
Each of a plurality of pixels of a spatial light modulator of this optical node device comprises: a first switching circuit and a first signal holding circuit that sample and hold normal gradation data or reversed gradation data; and a second switching circuit and a second signal holding circuit that sample the normal gradation data or reversed gradation data held in the first signal holding circuit at a timing common to all of the plurality of pixels and hold the sampled data during one subframe period, and applies the sampled data to a reflection electrode. A spatial light modulator driving part applies positive/negative polarity alternating-current voltage to a liquid crystal by reversing the voltage of a common electrode of a liquid crystal display element, and supplies voltage having amplitude different from amplitude between the normal gradation data and the reversed gradation data to the common electrode.
Inventors:
IWASA TAKAYUKI (JP)
Application Number:
PCT/JP2021/041636
Publication Date:
June 09, 2022
Filing Date:
November 11, 2021
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G02F1/1368; G02F1/01; G02F1/13; G02F1/133; G02F1/31; H04B10/27
Foreign References:
| JP2015156015A | 2015-08-27 | |||
| JP2013092714A | 2013-05-16 | |||
| JP2015161836A | 2015-09-07 | |||
| JP2019101141A | 2019-06-24 | |||
| JP2008107378A | 2008-05-08 | |||
| JPH0695621A | 1994-04-08 | |||
| JP2003058130A | 2003-02-28 | |||
| US20180299744A1 | 2018-10-18 | |||
| JP5733154B2 | 2015-06-10 |
Other References:
See also references of EP 4239401A1
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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