Flat panel television receiver implemented with a thin film EL panel

A television receiver comprising:

• a television image screen including a thin-film electroluminescent panel possessing inherent memory characteristics;
• a driver circuit arrangement means for alternately enabling and disabling said thin-film electroluminescent panel with write pulses and erase pulses during a write field interval of time and an erase field interval of time, respectively;
• and
• means for preventing said write pulses and said erase pulses from being supplied to said thin-film electroluminescent panel thereby causing the image displayed on said thin-film electroluminescent panel to come to a standstill.

A television receiver comprising:

• a television image screen including a thin-film electroluminescent panel having hysteresis properties in the applied voltage vs brightness characteristics;
• first circuit means for enabling said thin-film electroluminescent panel by energizing said panel with write pulses, erase pulses and sustain pulses when said panel operates in a normal moving picture mode;
• and
• second circuit means for enabling said thin-film electroluminescent panel by energizing said panel only with said sustain pulses when said panel operates in a steady picture mode.

A television receiver for driving an electroluminescent display panel, said panel having a plurality of a first set of electrodes and a plurality of a second set of electrodes disposed substantially normal to said first set of electrodes, said receiver comprising:

• means for receiving a composite television signal including a video signal and a synchronizing signal;
• separating means for separating said video signal from said synchronizing signal;
• first pulse generating means responsive to said video signal from said separating means for generating a display signal pulse, said display signal pulse including a plurality of pulses, each of said plurality of pulses having a pulse characteristic which varies in accordance with said video signal, said display signal pulse energizing said first set of electrodes;
• second pulse generating means responsive to said synchronizing signal from said separating means for generating a line selection pulse for selecting one of said plurality of a second set of electrodes when said display signal pulse energizes said first set of electrodes;
• said second pulse generating means generating an erase pulse for energizing said one of said plurality of a second set of electrodes subsequent to the energization of said first set of electrodes and said one of said plurality of a second set of electrodes by said display signal pulse and said line selection pulse, respectively;
• said second pulse generating means generating a sustain pulse for sustaining the electroluminescence of said display panel subsequent to the energization of said first set of electrodes and said one of said plurality of a second set of electrodes by said display signal pulse and said line selection pulse, respectively, and prior to the generation of said erase pulse;
• and
• disabling means for disabling said first pulse generating means to prevent the generation of said display signal pulse and for disabling said second pulse generating means to prevent the generation of said line selection pulse and said erase pulse, said disabling means permitting said second pulse generating means to generate said sustain pulse whereby a steady, non-moving image is created on said electroluminescent display panel,
• said disabling means capable of permitting said first pulse generating means to generate said display signal pulse and said second pulse generating means to generate said line selection pulse and said erase pulse, whereby a moving image is created on said display panel.

A television receiver receiving a composite television signal for driving an electroluminescent display panel, said panel having a plurality of a first set of electrodes and a plurality of a second set of electrodes arranged substantially normal to said first set of electrodes, said receiver comprising:

• first means responsive to said composite television signal for generating a plurality of display signal pulses having a pulse characteristic which varies in accordance with said composite television signal, said plurality of display signal pulses energizing said plurality of a first set of electrodes;
• second means responsive to said composite television signal for generating a line selection pulse for selecting one of said plurality of a second set of electrodes, said second means generating an erase pulse subsequent to the generation of said display signal pulses and said line selection pulse by said first means and said second means, respectively, said erase pulse erasing the image created on said one of said plurality of a second set of electrodes subsequent to the energization of said first set of electrodes by said display signal pulses and to energization of said one of said plurality of a second set of electrodes by said line selection pulse;
• controlling means connected to said first means and said second means and responsive to said composite television signal for controlling the generation of said display signal pulses, said line selection pulses and said erase pulses, the energization of said first set of electrodes by said display signal pulses and said one of said plurality of a second set of electrodes by said line selection pulse defining a write pulse at the intersection between said first set of electrodes and said one of said plurality of a second set of electrodes,
• said controlling means alternatingly and sequentially energizing said second set of electrodes with erase pulses and the write pulses.