Patent · US Expired

Electro-optical device and method of fabricating same

US5815226A · kind A · utility

167Cited by
7References
17Claims
0Family size

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Inventors

Key dates

Filing dateFeb 28, 1997
Grant dateSep 29, 1998
Priority date
Expiry dateFeb 28, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D86/60
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An active matrix liquid crystal display having a high aperture ratio is provided. Retaining capacitors are created between a black matrix and pixel electrodes via a dielectric layer made from an organic resinous material or inorganic material. Those regions of the black matrix which cover TFTs are fully utilized. Therefore, wider area can be used to display an image than heretofore. In the present invention, the difference in relative dielectric constant between different dielectric layers is employed. Therefore, retaining capacitors can be created without the need to take account of parasitic capacitance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.