The present disclosure provides a display device and a manufacturing method thereof and a method for converting a color gamut of a display device. The display device comprises a display panel which comprises a display substrate and a plurality of pixel units arranged on a first surface of the display substrate, wherein each pixel unit comprises a plurality of sub-pixels which comprises a variable color sub-pixel used for emitting light of at least one predetermined color according to a predetermined color gamut. Thus, the light of the predetermined color emitted by the variable color sub-pixels can alleviate the phenomenon of color shift of the display device and thereby improve multiple optical properties of the display device, and the display device can meet the requirements of different color gamuts, while not causing lowering of the optical properties.

A complimentary polymer or dual-polymer electrochromic device and methods of preparing the same are provided.

The present disclosure relates to an electrochromic material having a relatively high response speed and a reversible discoloration even by a relatively low driving voltage and an electrochromic particle, a transmittance variable panel and a transmittance variable display device including the electrochromic material.

Described are electrochromic devices and compositions as well as manufacturing methods for making such electrochromic devices by printing or wet processing of the compositions. The compositions are in the form of a suspension and comprise two or more monomers, nanoparticles of an electrochromic metal oxide, one or more metal salts of the form (M)z(R)y, where M is a metal cation and R is the corresponding salt anion, a carrier liquid and a solvent. The compositions are polymerised to form a composite layer comprising a polymer matrix that hosts the electrochromic nanoparticles and the electrolyte. At least a part of the metal salts (e.g. zinc acetate) is physically adsorbed onto the surface of the nanoparticles and acts as a dispersant.

The present invention relates to an electrochromic device, and according to one aspect of the present invention, there is provided an electrochromic device comprising: a first electrode layer, a first electrochromic layer provided on the first electrode layer, an electrolyte layer provided on the first electrochromic layer, a second electrochromic layer provided on the electrolyte layer, and a second electrode layer provided on the second electrochromic layer, wherein it comprises a first auxiliary electrode layer and a second auxiliary electrode layer each provided on each opposite surface of the first electrochromic layer and the second electrochromic layer opposed to each other with the electrolyte layer interposed therebetween, and the first and second auxiliary electrode layers each comprise an electrode portion formed of a metal material and an insulation portion for insulating the electrode portion.

The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include nickel tungsten tantalum oxide (NiWTaO). This material is particularly beneficial in that it is very transparent in its clear state.

The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include nickel tungsten tantalum oxide (NiWTaO). This material is particularly beneficial in that it is very transparent in its clear state.

A heat treated electrochromic device comprising an anodic complementary counter electrode layer comprised of a mixed tungsten-nickel oxide and lithium, which provides a high transmission in the fully intercalated state and which is capable of long term stability, is disclosed. Methods of making an electrochromic device comprising an anodic complementary counter electrode comprised of a mixed tungsten-nickel oxide are also disclosed.

The present application relates to an electrochromic element and a method for manufacturing the same. A method for manufacturing an electrochromic element according to an exemplary embodiment of the present application comprises: forming a first electrode on a first substrate, and then forming a first electrochromic unit on the first electrode; forming a second electrode on a second substrate, and then forming a second electrochromic unit on the second electrode; and forming an electrolyte layer between the first electrochromic unit and the second electrochromic unit, in which the forming of the first electrochromic unit is carried out by an E-beam deposition method (E-beam evaporation) using a carrier gas.

There is provided an optical element which is an apodized filter capable of externally controlling an optical characteristic and stable over a long period. An optical element 100 is an optical element including: a transparent electrolyte layer 110; a pair of solid electrochromic layers which sandwiches the transparent electrolyte layer 110; and further a pair of transparent conductive films 140 which sandwiches a pair of the solid electrochromic layer, wherein a pair of the solid electrochromic layers is constituted by a reduction coloring-type solid electrochromic layer 120 and an oxidation coloring-type solid electrochromic layer 130 opposing each other, the optical element including: an apodized characteristic in which transmittance increases gradually from an outer periphery toward a center in a plane orthogonal to a thickness direction of the transparent electrolyte layer 110.