Double sided liquid crystal display unit and portable electronic apparatus comprising a polarizing element between two liquid crystal display panels
US7830475B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2010 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Jul 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display device including two liquid crystal display panels located back to back is made thinner. A liquid crystal display device includes first and second liquid crystal display panels located back to back. The liquid crystal display device further includes a light source provided to a side of a rear substrate of the first liquid crystal display panel, a light source provided to a side of a rear substrate of the second liquid crystal display panel, and a polarizing element provided between the first and second liquid crystal display panels. The rear substrate of the first liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the second liquid crystal display panel. The rear substrate of the second liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the first liquid crystal display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.