Provided is an electrochromic element including: a first electrode; a second electrode apart from and opposite to the first electrode; an electrolyte layer between the first electrode and the second electrode, containing an oxidizable substance or a reducible substance, or both; and at least one of an oxidizable electrochromic layer between the first electrode and the electrolyte layer, containing an oxidizable electrochromic compound, and a reducible electrochromic layer between the second electrode and the electrolyte layer, containing a reducible electrochromic compound, wherein an oxidation potential of the oxidizable substance is nobler than an oxidation potential of the oxidizable electrochromic compound, a reduction potential of the reducible substance is baser than a reduction potential of the reducible electrochromic compound, an oxidation reaction of the oxidizable substance is irreversible, and a reduction reaction of the reducible substance is irreversible.

Provided is an electrochromic element including: a first electrode; a second electrode apart from and opposite to the first electrode; an electrolyte layer between the first electrode and the second electrode, containing an oxidizable substance or a reducible substance, or both; and at least one of an oxidizable electrochromic layer between the first electrode and the electrolyte layer, containing an oxidizable electrochromic compound, and a reducible electrochromic layer between the second electrode and the electrolyte layer, containing a reducible electrochromic compound, wherein an oxidation potential of the oxidizable substance is nobler than an oxidation potential of the oxidizable electrochromic compound, a reduction potential of the reducible substance is baser than a reduction potential of the reducible electrochromic compound, an oxidation reaction of the oxidizable substance is irreversible, and a reduction reaction of the reducible substance is irreversible.

A display device includes a first display panel for displaying a first image, a fingerprint sensor disposed on one surface of the first display panel and detecting light passing through the first display panel, and a first light transmission control unit disposed between the first display panel and the fingerprint sensor for controlling transmission of light.

A display device includes a first display panel for displaying a first image, a fingerprint sensor disposed on one surface of the first display panel and detecting light passing through the first display panel, and a first light transmission control unit disposed between the first display panel and the fingerprint sensor for controlling transmission of light.

A transparent display device, comprising: a display panel; a system light source provided over a non-display surface of the display panel; an article placement area located at a side of the system light source that is away from the display panel; an encapsulated cell provided between the system light source and the article placement area, wherein the encapsulated cell is provided with an electrochromic material therein; and a control member that is capable of controlling the electrochromic material in the encapsulated cell to regionally switch to a transparent state or a colored state. The present invention can realize a regionally transparent display and expand the application range of the transparent display device.

A sealant, a preparation method and a curing method thereof, and a display apparatus are provided. The sealant includes a viscous transparent base material and electrochromic material doped in the base material. The electrochromic material is mutually linked to form a conductive chain and can change color in the case that an electric field is applied upon the electrochromic material, to prevent light from passing through.

Methods and materials to fabricate electrochromic including electrochemical devices are disclosed. In particular, emphasis is placed on the composition, fabrication and incorporation of electrolytic sheets in these devices. Composition, fabrication and incorporation of redox materials and sealants suitable for these devices are also disclosed. Incorporation of EC devices in insulated glass system (IGU) windows is also disclosed.

To provide an electrochromic element, which contains: a first electrode; a second electrode; and an electrolyte provided between the first electrode and the second electrode, wherein the first electrode contains a polymer product obtained through polymerization of an electrochromic composition where the electrochromic composition contains a radical polymerizable compound containing triarylamine.

To provide an electrochromic element, which contains: a first electrode; a second electrode; and an electrolyte provided between the first electrode and the second electrode, wherein the first electrode contains a polymer product obtained through polymerization of an electrochromic composition where the electrochromic composition contains a radical polymerizable compound containing triarylamine.

A window assembly includes an electro-optic element which has a first substantially transparent substrate defining first and second surfaces. The second surface includes a first electrically conductive layer. A second substantially transparent substrate defines third and fourth surfaces. The third surface includes a second electrically conductive layer. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic medium is disposed in the cavity. The electro-optic medium is switchable such that the electro-optic element is operable between substantially clear and darkened states. An absorptive layer is positioned on the fourth surface of the electro-optic element and a reflective layer is positioned on the absorptive layer.