US 11,988,937 B2
Apparatus including an electrochromic device configured to maintain a continuously graded transmission state
Yigang Wang, Plymouth, MN (US); and Bryan D. Greer, Northfield, MN (US)
Assigned to SAGE ELECTROCHROMICS, INC., Faribault, MN (US)
Filed by SAGE ELECTROCHROMICS, INC., Faribault, MN (US)
Filed on Oct. 19, 2022, as Appl. No. 18/047,718.
Application 18/047,718 is a continuation of application No. 15/848,727, filed on Dec. 20, 2017, granted, now 11,500,258.
Claims priority of provisional application 62/438,296, filed on Dec. 22, 2016.
Prior Publication US 2023/0082345 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/155 (2006.01); G02F 1/163 (2006.01)
CPC G02F 1/155 (2013.01) [G02F 1/163 (2013.01); G02F 2203/01 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising an electrochromic device which is configured to be maintained in a continuously graded transmission state, wherein the electrochromic device comprises:
a first power supply terminal electrically coupled to a first bus bar;
a second power supply terminal electrically coupled to the first bus bar;
a control device configured such that the first and second power supply terminals are at different voltages during a same time period;
a first transparent conductive layer, wherein the first bus bar having a main body and coupled to the first transparent conductive layer;
a second bus bar having a main body and coupled to the first transparent conductive layer;
a first gap between the first and second bus bars, wherein the first gap is at least 10% of a distance between the main bodies of the first and second bus bars; and
a third bus bar coupled to the first transparent conductive layer, wherein the third bus bar is connected to a voltage supply terminal or wire.