US 12,287,477 B2
Electronic image device and method for driving the electronic image device
Zhongshou Huang, Tianjin (CN)
Assigned to SEEYA OPTRONICS CO., LTD., Shanghai (CN)
Filed by SEEYA OPTRONICS CO., LTD., Shanghai (CN)
Filed on Oct. 14, 2022, as Appl. No. 17/966,197.
Claims priority of application No. 202111203619.9 (CN), filed on Oct. 15, 2021.
Prior Publication US 2023/0121909 A1, Apr. 20, 2023
Int. Cl. G02B 26/00 (2006.01); G02B 3/14 (2006.01); G02B 26/08 (2006.01)
CPC G02B 26/004 (2013.01) [G02B 3/14 (2013.01); G02B 26/0875 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic image device, comprising:
a barrel-shaped container;
a conductive liquid and an insulating liquid, which have a same density and different optical refractive indices, are immiscible with each other, and are filled into the barrel-shaped container;
an electronic image element disposed at a first end of the barrel-shaped container, wherein a surface of the electronic image element is in contact with the conductive liquid or the insulating liquid;
a light-transmissive window disposed at a second end of the barrel-shaped container, wherein a surface of the light-transmissive window is in contact with the insulating liquid or the conductive liquid;
a first electrode in contact with the conductive liquid and disposed on a side of the electronic image element; and
a second electrode forming a capacitive coupling with the conductive liquid, disposed on an inner sidewall of the barrel-shaped container, and comprising a conical inclined surface;
wherein a variable voltage is applied between the first electrode and the second electrode to change a curvature of an interface between the conductive liquid and the insulating liquid;
wherein at least one hydrophobic layer for the conductive liquid or for the insulating liquid is disposed on the second electrode; and
wherein the barrel-shaped container comprises a conic-shaped funnel structure with a large opening adjacent to the light-transmissive window and a small opening adjacent to the electronic image element.