Abstract: A laminated glass pane (1) comprises a first glass pane (10A), a second glass pane (10B) and an optically active film (20) laminated between the glass panes. The optically active film comprises a first conductive layer and a second conductive layer separated by at least one intermediate layer. The first and second conductive layers are contacted by a first (12A) and second (12B) connection wire, respectively. The optically active film is fully covered by both glass panes. Both the first and the second connection wires protrude out from the active film passing a first edge (14A) of the first glass pane in a same direction (18). The second glass pane protrudes outside the first edge of the first glass pane in the direction by an off-set distance (16). The off-set distance is at least equal to a smallest width of the first and second connection wires.

Abstract: A method for controlling an electrochromic device comprises obtaining (210) of a target colouring level and a measure of an initial colouring level. A measure of an initial open circuit voltage between electrodes of the electrochromic device is obtained (220). A voltage applied between the electrodes is calibration ramped (230). A calibration charging current is measured (232) during the calibration ramping of the voltage. The calibration ramping of the voltage is interrupted (236), intermittently and temporarily and a calibration open circuit voltage is measured (238). The calibration ramping is stopped (240) when a calibration condition is met. A constant main charging/discharging voltage between the electrodes of the electrochromic device is applied (250). The voltage is selected in dependence of the ramped voltage when stopped. Application of a voltage between the electrodes is removed (270) when target colouring level is reached. An electrochromic device capable of performing such procedure is disclosed.

Abstract: A method for controlling an electrochromic device comprises obtaining (210) of a target colouring level and a measure of an initial colouring level. A measure of an initial open circuit voltage between electrodes of the electrochromic device is obtained (220). A voltage applied between the electrodes is calibration ramped (230). A calibration charging current is measured (232) during the calibration ramping of the voltage. The calibration ramping of the voltage is interrupted (236), intermittently and temporarily and a calibration open circuit voltage is measured (238). The calibration ramping is stopped (240) when a calibration condition is met. A constant main charging/discharging voltage between the electrodes of the electrochromic device is applied (250). The voltage is selected in dependence of the ramped voltage when stopped. Application of a voltage between the electrodes is removed (270) when target colouring level is reached. An electrochromic device capable of performing such procedure is disclosed.

Abstract: A method for enhancing the reliability of contacting the conductive layers in a laminated electrochromic device structure is disclosed (FIG. 7). The laminate structure (10), typically fabricated in the form of a sheet, comprises: two polymer substrates (21, 22); two conductive layers (31, 32)—one arranged on each substate—and facing each other; an electrochromic layer (41) and a counter-electrode layer (42) each arranged on different conductive layers; and an electrolyte layer (50) interposed between the electrochromic layer and the counter-electrode layer. Either an incision with an undulating cutting depth or perforations of predetermined sizes, depths (through at least most of one substrate) and separations are prefabricated along a desired tear line in the structure (step 220)—once the final shape of the device is defined—to facilitate the tearing away of the one polymer substrate to reveal the conductive layer to be contacted on the underlying substrate.

Abstract: An electrochromic device (1) comprises an electrochromic layered structure (10) having a first substrate sheet (21), a second substrate sheet (22), a first (23) and a second (24) electron conducting layer at least partially covering a respective substrate sheet, an electrochromic layer (25) and a counter electrode layer (26) at least partially covering a respective electron conducting layer and an electrolyte layer (30) laminated between and at least partially covering the first electrochromic layer and the counter electrode layer. The electrochromic layered structure also has an area (51, 52) in which the electrochromic layer or the counter electrode layer is not covered by the electrolyte layer. An electrode (41, 42) is soldered to the respective electron conducting layer through the electrochromic layer or the counter electrode layer.

Abstract: An electrochromic device (1) comprises an electrochromic layered structure (10) having a first substrate sheet (21), a second substrate sheet (22), a first (23) and a second (24) electron conducting layer at least partially covering a respective substrate sheet, an electrochromic layer (25) and a counter electrode layer (26) at least partially covering a respective electron conducting layer and an electrolyte layer (30) laminated between and at least partially covering the first electrochromic layer and the counter electrode layer. The electrochromic layered structure also has an area (51, 52) in which the electrochromic layer or the counter electrode layer is not covered by the electrolyte layer. An electrode (41, 42) is soldered to the respective electron conducting layer through the electrochromic layer or the counter electrode layer.

Abstract: A method for manufacturing of laminated electrochromic devices in a flexible and easy manner comprises provision (210) of a solid-electrochromic-layer layered polymer-based structure. The solid-electrochromic-layer layered polymer-based structure is positioned (240) between a first glass pane and a second glass pane, with a respective interlayer film between each side of the solid-electrochromic-layer layered polymer-based structure and the first glass pane and the second glass pane, respectively, forming a stack. The stack is exposed (250) to a lamination temperature, which is at most 120° C., for a hot lamination time period. The stack is cooled-down (252) at at least atmospheric pressure after the hot lamination time period. Laminated electrochromic devices produced by such a method are also disclosed.

Abstract: A method for enhancing the reliability of contacting the conductive layers in a laminated electrochromic device structure is disclosed (FIG. 7). The laminate structure (10), typically fabricated in the form of a sheet, comprises: two polymer substrates (21, 22); two conductive layers (31, 32)—one arranged on each substate—and facing each other; an electrochromic layer (41) and a counter-electrode layer (42) each arranged on different conductive layers; and an electrolyte layer (50) interposed between the electrochromic layer and the counter-electrode layer. Either an incision with an undulating cutting depth or perforations of predetermined sizes, depths (through at least most of one substrate) and separations are prefabricated along a desired tear line in the structure (step 220)—once the final shape of the device is defined—to facilitate the tearing away of the one polymer substrate to reveal the conductive layer to be contacted on the underlying substrate.