The present disclosure provides an array substrate and a preparation method thereof, a display panel and a driving method thereof, which belongs to the field of display technology. The array substrate includes a base substrate, a driving circuit layer, a reflective electrode layer, a light-emitting layer, an electrochromic layer, and a common electrode layer. The driving circuit layer is provided with a first and second driving circuit. The reflective electrode layer is provided on a side of the driving circuit layer away from the base substrate and provided with a first and second reflective electrode insulated from each other. The light-emitting layer includes a light-emitting unit arranged on the surface of the second reflective electrode away from the base substrate. The electrochromic layer is arranged on the surface of the first reflective electrode away from the base substrate. The common electrode layer covers the electrochromic layer and the light-emitting unit.

Disclosed is an electrochromic device including an electrolyte layer having first and second surfaces directed in opposite directions, an electrochromic layer provided on the first surface of the electrolyte layer, a counter electrode layer provided on the second surface of the electrolyte layer, a first transparent electrode layer provided on a surface opposite to the electrolyte layer based on the electrochromic layer, and a second transparent electrode layer provided on a surface opposite to the electrolyte layer based on the counter electrode layer, in which the first and second transparent electrode layers are each provided as a composite layer in which an oxide-based electrode layer made of a material selected from a group consisting of AZO, FTO, and ITO and a metal-based electrode layer made of a material selected from a group consisting of nanowires (AgNWs), PEDOT:PSS, graphene, and a metal mesh are laminated.

Disclosed is an electrochromic device including an electrolyte layer having first and second surfaces directed in opposite directions, an electrochromic layer provided on the first surface of the electrolyte layer, a counter electrode layer provided on the second surface of the electrolyte layer, a first transparent electrode layer provided on a surface opposite to the electrolyte layer based on the electrochromic layer, and a second transparent electrode layer provided on a surface opposite to the electrolyte layer based on the counter electrode layer, in which the first and second transparent electrode layers are each provided as a composite layer in which an oxide-based electrode layer made of a material selected from a group consisting of AZO, FTO, and ITO and a metal-based electrode layer made of a material selected from a group consisting of nanowires (AgNWs), PEDOT:PSS, graphene, and a metal mesh are laminated.

An electrochromic device is disclosed. The electrochromic device can include a stack of layers. The stack of layers can include a first transparent conductive layer on a substrate, a second transparent conductive layer, a cathodic electrochromic layer between the first transparent conductive layer and the second transparent conductive layer, and an anodic electrochromic layer between the first transparent conductive layer and the second transparent conductive layer. The stack of layers can be patterned. In one embodiment, the pattern can be parallel to a voltage gradient of the electrochromic device. In another embodiment, the pattern can extend through all layers of the stack of layers of the electrochromic device.

An electrochromic device is disclosed. The electrochromic device can include a stack of layers. The stack of layers can include a first transparent conductive layer on a substrate, a second transparent conductive layer, a cathodic electrochromic layer between the first transparent conductive layer and the second transparent conductive layer, and an anodic electrochromic layer between the first transparent conductive layer and the second transparent conductive layer. The stack of layers can be patterned. In one embodiment, the pattern can be parallel to a voltage gradient of the electrochromic device. In another embodiment, the pattern can extend through all layers of the stack of layers of the electrochromic device.

A method of making an electrochromic device, includes: providing an electrochromic layer comprising a p-type electrochromic material; providing an ion-storage layer comprising an n-type metal oxide; and tuning the ion-storage layer, the electrochromic layer, or both the ion-storage layer and the electrochromic layer, so that when the electrochromic device is operating, the ion-storage layer operates in a minimally color changing mode.

EC film stacks and different layers within the EC film stacks are disclosed. Methods of manufacturing these layers are also disclosed. In one embodiment, an EC layer comprises nanostructured EC layer. These layers may be manufactured by various methods, including, including, but not limited to glancing angle deposition, oblique angle deposition, electrophoresis, electrolyte deposition, and atomic layer deposition. The nanostructured EC layers have a high specific surface area, improved response times, and higher color efficiency.

The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WO.sub.x electrochromic (EC) layer by lowering a sputter temperature to achieve a WO.sub.x microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WO.sub.x (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WO.sub.x layer to tune the color of the tinted stack.

The color of an electrochromic stack in a tinted state may be modified to achieve a desired color target by utilizing various techniques alone or in combination. A first approach generally involves changing a coloration efficiency of a WO.sub.x electrochromic (EC) layer by lowering a sputter temperature to achieve a WO.sub.x microstructural change in the EC layer. A second approach generally involves utilizing a dopant (e.g., Mo, Nb, or V) to improve the neutrality of the tinted state of WO.sub.x (coloration efficiency changes). A third approach generally involves tailoring a thickness of the WO.sub.x layer to tune the color of the tinted stack.

Provided is an electrochromic glass, including a first transparent substrate, a second transparent substrate and a functional stacked layer. The functional stacked layer includes a first conductive layer, an electrochromic stacked layer and a second conductive layer, wherein the first conductive layer, the electrochromic stacked layer and the second conductive layer are sequentially arranged on the first transparent substrate and are located between the first transparent substrate and the second transparent substrate. Also provided is a method for manufacturing the electrochromic glass.