Portable television receiver of the panel type

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide a panel type portable television receiver using a liquid crystal display panel with a dot matrix array and capable of a gradation display by a simple circuit structure.
According to the present invention, a television receiver of the panel type is provided, which comprises: a television tuner means; a circuit means connected to the television tuner means for forming an audio signal, a video signal and a sync signal, by using a signal tuned and output by the television tuner, as well as for properly processing the signals formed, a picture display including about 1/8th as many scanning electrodes as effective T.
V.
picture scanning lines, and a display panel of the double matrix type in which two picture element electrodes lying on each of the signal electrodes commonly provided in the direction of the width of the scanning electrodes are in opposition to each other, and for displaying an image based on the video signal processed by the circuit means; a display drive circuit means for driving the display panel of the picture display with the duty cycle represented by the following formula wherein ##EQU2## where A is the number of fields constituting one frame, B is the number of horizontal periods for a video signal assigned to a scanning electrode; and C is the number of scanning lines; and a power source means connected to the individual devices to supply voltage thereto.
With such an arrangement, the portable television receiver of the panel type of this invention can provide a satisfactory level of contrast and resolution, even if an electroluminescence illumination panel is used.