LCD device with a built-in electroluminescent body and method of producing the same
US6208391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133603
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An LCD (Liquid Crystal Display) device with a built-in electroluminescent body of the present invention includes a liquid crystal cell having an upper LCD substrate, a lower LCD substrate, and a liquid crystal layer formed between the upper LCD substrate and the lower LCD substrate by the injection of liquid crystal. An upper polarizer and a lower polarizer are respectively positioned on the top and the bottom of the liquid crystal cell. The electroluminescent body is arranged on the lower polarizer in the form of wirings for implementing back illumination. Dust and other impurities are prevented from penetrating the gap between an LCD and an EL (Electroluminescent Lamp) at the time of production. The lower polarizer plays the role of an EL substrate at the same time and thereby eliminates the need for an EL substrate and an affixing material. The LCD device can be produced by a minimum of steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.