Electro-optical device and electronic apparatus
US8125431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Nov 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The electro-optical device is directly connected to a battery and includes a display panel, a driver, and a voltage adjusting circuit. The driver amplifies an input voltage and supplies the amplified voltage to the display panel. The voltage adjusting circuit includes a plurality of conversion circuits, a switching unit, and a control circuit. The plurality of conversion circuits convert a voltage input from the battery into different voltages and supply the converted voltages to the driver. The switching unit performs switching for supplying the voltage to one of the plurality of conversion circuits. The control circuit controls the switching unit to switch the conversion circuit that supplies the voltage input from the battery when it is detected that a voltage gain of the driver has changed. Thus, the power consumption can be reduced without having an adverse effect on image display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.