Title:
LIQUID LENS CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/006591
Kind Code:
A1
Abstract:
According to an embodiment, a liquid lens control device may comprise: a liquid lens for controlling an interface of a liquid in response to a driving voltage; a voltage booster for increasing the level of a supply voltage to output a voltage having a level higher than that of the supply voltage; a control unit for controlling a driving voltage; and a gyro sensor for sensing a movement of the liquid lens to output a signal corresponding to the movement of the liquid lens, wherein the control unit obtains a signal corresponding to the movement of the liquid lens, the signal having been output from the gyro sensor, in a region in which the voltage booster is turned off, and controls a driving voltage by using the signal corresponding to the movement of the liquid lens.
Inventors:
PARK JUNG BAE (KR)
KIM CHANG WOOK (KR)
PARK YONG SUNG (KR)
KIM CHANG WOOK (KR)
PARK YONG SUNG (KR)
Application Number:
PCT/KR2020/008836
Publication Date:
January 14, 2021
Filing Date:
July 07, 2020
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G02B3/14
Domestic Patent References:
| WO2019099648A1 | 2019-05-23 |
Foreign References:
| KR101972052B1 | 2019-04-24 | |||
| JP2016013286A | 2016-01-28 | |||
| KR20180092140A | 2018-08-17 | |||
| JP2009047801A | 2009-03-05 |
Attorney, Agent or Firm:
LEE, Seung Chan (KR)
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