JPH0221869U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a display device according to the present invention, FIG. 2 is a plan view schematically showing the screen and screen outer frame of a display device employing the device shown in FIG. 1, and FIG. , FIG. 4 and FIG. 5 are flowcharts for explaining the operation of the embodiment shown in FIG. 1, FIG. 6 is an explanatory diagram showing an example of display of a conventional reception channel, and FIG. FIG. 15... Output circuit, 16, 17... Input terminal,
18...Control device, 19...External interrupt terminal, 2
0...Display data processing circuit, 21...Count value setting register, 22...Horizontal pulse counter, 2
3... Overflow interrupt terminal, 24... Display output timing control circuit.

Claims (1)

[Scope of claim for utility model registration] An initial value based on the reception channel is introduced,
A horizontal pulse counter that starts counting horizontal synchronizing pulses in response to a control signal and outputs an overflow interrupt when the count value overflows; and a horizontal pulse counter that outputs the initial value when information about the receiving channel is introduced, and starts counting the horizontal synchronizing pulses at the edge of the vertical synchronizing pulse. A control device that outputs a signal and outputs a drive signal for several horizontal scanning periods when the overflow interrupt occurs, and an output circuit that is driven by the drive signal and outputs a luminance signal and a color signal. A display device characterized by displaying a horizontal bar and changing the position of the horizontal bar according to a reception channel.