Display device and its control method
A technology of a display device and a control method, which can be applied to static indicators, cathode ray tube indicators, televisions, etc., and can solve problems such as mistrust
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no. 1 approach
[0061] (1-1) Structure of TV receiver
[0062] figure 1 It is a block diagram showing the structure of the television receiver of this embodiment. like figure 1 As shown, the television receiver 100 includes a tuner 1, an audio output unit 2, a video display unit 3, a power supply detection unit 5, a remote control receiving unit 6, a card insertion unit 7, a card insertion detection unit 8, a card information detection unit 9, A timer 10 , a system memory 11 , a storefront mode execution unit 12 , an OSD processing unit 13 , and a system control unit 50 .
[0063] The tuner 1 performs channel selection by selecting the frequency of a television broadcast signal (for example, a digital broadcast signal) transmitted by a broadcasting station under the control of a system control unit 50 described later. In addition, the tuner 1 demodulates and decodes video signals and audio signals based on the selected television broadcast signal, and outputs them.
[0064] The audio outp...
no. 2 approach
[0107] Next, differences between the second embodiment of the present invention and the first embodiment described above will be described. In the present embodiment, the television receiver 100 is set to a factory mode at the time of shipment. Furthermore, when power is supplied to the television receiver 100 for the first time in a shop or a general home, the system control unit 50 performs an operation mode selection process described later. When the television receiver 100 is in the factory mode or operating mode at the time of power supply, a mode selection screen is displayed on the video display unit 3 . The user selects an operation mode of the television receiver 100 on the mode selection screen by operating the remote controller 6a or the like.
[0108] Image 6 It is a figure which shows an example of a mode selection screen. like Image 6 As shown, the mode selection screen D3 includes a “Home” button 41 and a “Shop” button 42 . On this mode selection screen D...
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