Display apparatus and method of driving the same
US9417732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2011 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus includes a display panel, a backlight unit, a backlight control circuit, sensors, a read-out circuit and a sensor auxiliary circuit. The display panel includes pixels and displays an image. The backlight unit includes a first light source which emits a first light in a infrared light range. The backlight control circuit controls a brightness of the first light source. The sensors sense an external signal and outputs first sensing signals. The read-out circuit outputs the first sensing signals as second sensing signals. The sensor auxiliary circuit compares a maximum value and a minimum value of the second sensing signals and provides a brightness control signal to the backlight control circuit based on the compared difference to control the brightness of the first light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.