Backlight unit with changing oscillation frequency in stereoscopic mode and liquid crystal display using the same
US9058781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | May 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display for displaying either a flat image or a stereoscopic image, comprising: a panel; and a backlight unit for providing a light source to the panel. The backlight unit comprising: a switch circuit and an oscillator. One end of the switch circuit is electrically connected with a first resistor, and another end of the switch circuit is electrically connected with a second resistor. When the switch circuit is turned on, the first resistor is connected with the second resistor in parallel. The oscillator is electrically connected with the first resistor and the switch circuit. When the switch circuit is turned off, the oscillator outputs a first frequency, and when the switch circuit is turned on, the oscillator outputs a second frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.