Method of forming colored film, driving device and liquid crystal display device
US6344301B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of forming a colored film includes a step of forming a substrate for electrodeposition by laminating at least a transparent conductive film and a thin transparent photosemiconductor film having a photovoltaic function in this order on the surface of a support having an electronic circuit materialthereon, and a step of irradiating with a light at least a thin photosemiconductor film of the substrate for electrodeposition while bringing the same into contact with an aqueous electrolyte containing an electrodeposition material containing a colorant, thereby selectively generating a photoelectromotive force to an irradiated area of the thin photosemiconductor film and electrochemically depositing the electrodeposition material to form a colored electrodeposition film; an electronic driving device containing the colored film and a liquid crystal display device having the electronic driving device, the method capable of forming the colored film of high quality and excellent surface smoothness being formed directly on a substrate having thin film transistor and capable of providing a high quality electronic driving device and a liquid crystal display device at low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.