Mobile terminal and display panel driver
US9395783B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Sep 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a boosting power supply circuit, a logic circuit and a charge transport path. The boosting power supply circuit generates a boosted power supply voltage by boosting an analog power supply voltage. The logic circuit is responsive to a decrease in a voltage level on at least one of power supply lines to which analog and logic power supply voltages are supplied for controlling a source line drive circuitry and a gate line drive circuitry to discharge charges accumulated in the display panel. The charge transport path is configured to transport charges from a power supply line on which the boosted power supply voltage is generated to a power supply line which supplies an internal logic power supply voltage to the logic circuit in response to the decrease in the voltage level on the at least one of the first and second power supply lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.