Patent application number | Description | Published |
20080246750 | DRIVING CIRCUIT AND IMAGE DISPLAY APPARATUS - There is provided a driving circuit including; a plurality of output terminals to be electrically connected to the scan wirings, respectively; a scan controlling unit for selecting one or plural output terminals to output a driving signal for the scan wiring from among the plurality of output terminals; a potential correcting unit for controlling a potential of the driving signal on the basis of a difference voltage between the potential of the selected output terminal and a reference potential; and a reference potential adjusting unit for adjusting the reference potential in response to a current passing through the selected output terminal in order to correct a voltage drop caused by a member connected to the selected output terminal. The reference potential adjusting unit changes adjustment of the reference potential in response to the number of the selected output terminals. | 10-09-2008 |
20090195522 | DRIVE CIRCUIT OF DISPLAY PANEL AND DISPLAY APPARATUS - A drive circuit for driving a display panel having wirings and display devices to be connected to the wirings, has a first switch that transits potential of the wirings toward the first potential, a feedback amplifier that maintains the potentials of the wirings at the first potential, and a second switch that selects whether or not to supply an output from the feedback amplifier to the wirings. The first switch and the second switch are connected to the wirings in parallel. A drive performance of the first switch is lower than that of the feedback amplifier. As a result, stable driving waveforms can be output in a simple and inexpensive circuit configuration. | 08-06-2009 |
20090195528 | DRIVE CIRCUIT OF DISPLAY PANEL AND DISPLAY APPARATUS - A drive circuit, which drives a display panel having wirings and display devices to be connected to the wirings, has first driving means that allows a potential of the wirings to transit toward the first potential, second driving means that maintains the potential of the wirings at the first potential, and a control circuit that outputs the control signal for controlling the second driving means according to an output of the first driving means. As a result, a plurality of driving means can be controlled at appropriate timing in a simple structure. | 08-06-2009 |
20090219263 | DRIVE CIRCUIT OF DISPLAY PANEL AND DISPLAY APPARATUS - A flexible printed circuit has ICs which drive display devices, connection wirings which connect the ICs and wirings on a display panel, and a resistor which is formed by the same process as the connection wirings. The ICs have a compensation circuit which compensates a voltage drop on the connection wirings. The compensation circuit applies an electric current flowing in the connection wirings or an electric current corresponding to this electric current to the resistor, so as to obtain a signal for compensating the voltage drop on the connection wirings. As a result, the voltage drop of the connection wirings on the flexile printed circuit can be accurately compensated. | 09-03-2009 |
20100259526 | SCANNING CIRCUIT, SCANNING DEVICE, IMAGE DISPLAY APPARATUS AND TELEVISION APPARATUS - A scanning circuit having a plurality of output units each outputs an ON potential sequentially, comprises: a first output unit that changes an ON potential to an OFF potential during a first period; and a second output unit that changes the OFF potential to the ON potential during a second period, wherein at least part of the first period and at least part of the second period overlap. | 10-14-2010 |
20100321373 | IMAGE DISPLAY APPARATUS AND METHOD FOR CONTROLLING THE SAME - In a method for controlling an image display apparatus provided with a display panel including electron emitting devices connected to scan wirings and modulation wirings and light emitting members for emitting light by irradiation with electrons, a modulation voltage pulse is generated such that its pulse width becomes longer than that of a scan voltage pulse, and the modulation voltage pulse is started to be output before start of output of the scan voltage pulse whereas it is ended after end of the output of the scan voltage pulse. | 12-23-2010 |