Lintec Corporation

Acreo Swedish Ict Ab

Acreo Ab

Rise Acreo Ab

Jun Kawahara

Magnus Berggren

Peter Andersson Ersman

Kazuya Katoh

David A Nilsson

Göran Gustafsson

David Nilsson

Hjalmar Granberg

Katoh Kazuya

There is disclosed an electrochromic passive-matrix display, wherein each passively addressed pixel cell comprises an electrolyte ionically connecting an electrochromic and electrochemically active polymer and a layer of electrically conducting carbon. Thus, each pixel has a pronounced threshold voltage sufficient for reducing cross talk in an electrochromic display.

Display device

A process for manufacturing an electrochemically active device comprising the steps of: &#x2014;providing a substrate () comprising an electrode receiving surface portion () having substantially constant wetting tension throughout said electrode receiving surface portion, &#x2014;providing a plurality of first electrodes () directly on said electrode receiving surface portion, &#x2014;leaving intermediate portions () of said electrode receiving surface portion () free from said electrodes, &#x2014;providing a layer of electrolyte () covering said plurality of first electrodes () and said intermediate portions (), and&#x2014;wherein wetting tension of the surfaces of the intermediate portions () is arranged to act more repelling on the electrolyte compared to the wetting tension of the surfaces of the plurality of first electrodes (), whereby, the electrolyte is concentrated to the surfaces of the plurality of first electrodes (), and the surfaces of the intermediate portions () are substantially free of electrolyte.

Electrochemical device manufacturing

There is provided a display device, which is arranged to display a predetermined fixed image, having a pixel electrode layer comprising a plurality of pixel portions, and opaque solidified electrolyte arranged in a plurality of separated segments in ionic contact with a respective pixel portion, wherein each electrolyte segment and respective pixel portion form a pixel element. The fixed image display further comprises at least one continuous electrode layer extending across at least two rows and two columns of the pixel matrix, and is connected to the electrolyte segments of a subset of the pixel elements. Upon application of an electric potential difference between the patterned electrode layer and the pixel electrode layer, the pixel portions of the subset of the pixel elements switch color.

Fixed image display device and method of manufacturing the same

There is disclosed a method for manufacturing a display device arrangement, which includes a plurality of electrochromic pixel devices arranged in a matrix. First a plastic insulating layer is provided comprising passages for electrical conductors. Thereafter, in optional order, electrical conductors are provided in the passages, pixel layers are printed on one side of the insulating layer, and control layers are printed on the other side of the insulating layer. By this method the manufacturing of a printed electrochromic pixel device is improved.

Active-matrix electrochromic display device and method for producing the same

Growing community of inventors

Norrköping, Sweden

Jun Kawahara