Patent ID: 7679688
Filing Date: 2010-03-16
Classification: H04N

Abstract:
1. A wireless TV system comprising: a base station comprising a wireless signal processor to process a predetermined video signal into a wireless signal, and a transmitter to transmit the wireless signal from the wireless signal processor; and a wireless TV comprising a receiver to receive the wireless signal from the transmitter, a liquid crystal display (LCD) displaying a picture based on the wireless signal, a backlight unit to illuminate the LCD, a battery to supply power, an inverter to supply the power from the battery to the backlight unit, and a controller to determine whether a wireless communication state is one of normal and abnormal based on the received wireless signal and to control the inverter to lower a brightness level of the LCD to a predetermined brightness level when the wireless communication state is abnormal, wherein the controller determines the wireless communication state based on the received wireless signal, and controls an OSD generator to display a power saving mode OSD message on the LCD and the inverter to lower the brightness level of the LCD to the predetermined brightness level when the wireless communication state is abnormal for a predetermined period of time.