Patent ID: 7605873

Claim:
A liquid crystal display television (LCD TV) capable of being used as a music station only, which turns off a backlight power when the LCD TV is used as the music station for playing an audio only, the LCD TV comprising: a TV tuner, which receives and demodulates a TV signal to thus produce a first video transport stream and a first audio transport stream; a video/audio analog to digital converter (ADC), which receives and demodulates a video/audio signal to thus produce a second video transport stream and a second audio transport stream; an audio decoder, which is connected to the TV tuner and the video/audio ADC and receives and selectively decodes the first and the second audio transport streams to thus produce an audio signal; a video decoder with a working mode and a standby mode, which is connected to the TV tuner and the video/audio ADC and receives and selectively decodes the first and the second video transport streams to thus produce an video signal; an LCD TV panel, which receives the video signal for playing and has a backlight control terminal having a first state and a second state such that the LCD TV panel turns on the backlight power thereon in accordance with the first state and turns off the backlight power in accordance with the second state; a controller, which is connected to the audio decoder, the video decoder and the LCD TV panel for performing initialization and working mode setting for the audio decoder, the video decoder and the panel; and a command input device, which is connected to the controller for receiving an instruction; wherein, when the instruction received is a video decoder and panel backlight power turning-off instruction, the controller produces a control signal to set the backlight control terminal to the second state to thereby drive the LCD TV panel to turn off the backlight power and set the video decoder to the standby mode.