| Patent application number | Description | Published |
|---|
| 20090321725 | ORGANIC EL DEVICE AND MANUFACTURING METHOD THEREOF - An organic EL device comprising a semiconductor element A having a source electrode, a drain electrode, and a gate electrode, a semiconductor element B having a source electrode, a drain electrode, and a gate electrode connected to the source electrode or the drain electrode of the semiconductor element A, and an organic EL element having a pixel electrode connected to the drain electrode of the semiconductor element B, in which the source electrode and the drain electrode of the semiconductor element A and the gate electrode of the semiconductor element B are set on the same plane. | 12-31-2009 |
| 20100007645 | IMAGE DISPLAY DEVICE - An image display device having a plurality of pixel circuits arranged in matrix, each comprising current-driven type light-emitting element, driver transistor for supplying a current to current-driven type light-emitting element, holding capacitor for holding a voltage that determines an amount of the current supplied from driver transistor, and writing switch for writing a voltage corresponding to an image signal into holding capacitor. The transistor formed in each pixel circuit is N-channel transistor. Each pixel circuit further comprises detection trigger line and detection trigger capacitor for supplying a voltage to change a source voltage of driver transistor. One terminal of detection trigger capacitor is connected to a source of driver transistor and the other terminal of detection trigger capacitor is connected to detection trigger line. | 01-14-2010 |
| 20100091041 | IMAGE DISPLAY DEVICE - In an image display device, a transistor formed in each pixel circuit is an N-channel transistor. Each pixel circuit further comprises an enable switch disposed in a current path supplying electric current to a light-emitting element and a supplementary capacitor for controlling changes in voltage of a terminal of a holding capacitor at one end opposite another terminal connected with writing switch. The light-emitting element is connected between the source of a driver transistor for supplying a current to the light-emitting element and a low-voltage side power line, an enable switch is connected between the drain of the driver transistor and a high-voltage side power line, and supplementary capacitor is connected between the drain of driver transistor and a predetermined power line. | 04-15-2010 |
| 20100109985 | IMAGE DISPLAY DEVICE - An image display device in which a plurality of pixel circuits are arranged has a current light-emitting element, a driver transistor for flowing current in the current light-emitting element, a retention capacitor for retaining a voltage determining an amount of current flowed from the driver transistor, and a writing switch for writing a voltage depending on an image signal to the retention capacitor. Transistors configuring the respective pixel circuits are an N-channel type transistor, each of the pixel circuits further includes an enable switch, an initialization capacitor for initializing the voltage of the retention capacitor, and a separation switch. | 05-06-2010 |
| 20100110055 | ACTIVE MATRIX TYPE DISPLAY APPARATUS - An active matrix type display apparatus of the present invention includes a plurality of pixels ( | 05-06-2010 |
| 20100220118 | PIXEL CIRCUIT AND DISPLAY APPARATUS - An active matrix display apparatus of the present invention comprises plural gate lines and plural source lines which are arranged such that the plural gate lines respectively intersect the plural source lines and light-emitting element circuits which are provided to respectively correspond to intersections at which the plural gate lines intersect the plural source line, respectively; wherein each of the light-emitting element circuits includes a light-emitting element for emitting light according to a current supplied thereto; a drive transistor for controlling a current supplied to the light-emitting element; and a control transistor for controlling an ON/OFF operation of the drive transistor; wherein the drive transistor has a body terminal and is configured to correct luminance of the light-emitting element using a voltage applied to the body terminal. | 09-02-2010 |
| 20100259527 | DISPLAY DEVICE, ELECTRONIC DEVICE, AND DRIVING METHOD - A display device includes data lines and pixels. Each pixel includes a driving transistor, a switch between one of the data lines and a gate of the driving transistor, and a luminescence element connected to the driving transistor. A first circuit path former flows a first test current from the one of the data lines through the first transistor and a second test current from the one of the data lines through the luminescence element. A second circuit path former generates a first voltage and a second voltage in the one of the data lines. The first voltage corresponds to a gate voltage of the first transistor generated by the first test current. The second voltage corresponds to a luminescence voltage of the luminescence element generated by the second test current. A voltage detector detects the first voltage and the second voltage in the one of the data lines. | 10-14-2010 |
| 20100259531 | IMAGE DISPLAY DEVICE AND METHOD OF CONTROLLING THE SAME - An image display device includes a luminescence element, a first capacitor, a driver having a gate connected to a first electrode of the first capacitor and a source connected to an anode of the luminescence element, and a second capacitor connected to a second electrode of the first capacitor. A power source supplies a reference voltage to the first electrode of the first capacitor via a first switch. A data line supplies a signal voltage to the second electrode of the first capacitor via a second switch. A third switch connects the anode of the luminescence element to the second capacitor. A controller supplies the signal voltage to the first capacitor by switching ON the first and second switches when the third switch is OFF, switches OFF the first and second switches to switch ON the third switch, and causes the second capacitor to hold a source potential of the driver while the third switch is ON. | 10-14-2010 |
| 20110057966 | DISPLAY PANEL DEVICE AND CONTROL METHOD THEREOF - A display panel device includes a luminescence element and a capacitor. A driving transistor includes a gate that is connected to a first electrode of the capacitor. A first switch is connected to the first electrode of the capacitor for setting a reference voltage to the first electrode of the capacitor. A data line supplies a data voltage to a second electrode of the capacitor. A second switch is connected between the data line and the second electrode of the capacitor. A wiring is connected to a first electrode of the luminescence element and the second electrode of the capacitor for interconnecting a first power line and the first electrode of the luminescence element with the second electrode of the capacitor, the second switch, and the data line. A third switch is connected in series with the driver between the first electrode of the luminescence element and the first power line. | 03-10-2011 |
| 20110128211 | LUMINESCENT DISPLAY DEVICE - A luminescent display device includes a substrate and a thin-film transistor above the substrate. The thin-film transistor includes a semiconductor layer, a gate insulating film on the semiconductor layer, a gate electrode on the gate insulating film, a source electrode, and a drain electrode. The luminescent display device further includes an interlayer insulating film on the gate electrode, a first capacitor electrode on the interlayer insulating film in a region above the gate electrode, and a luminescent element configured to be driven by a driver to produce luminescence. The driver includes the thin-film transistor, and the first capacitor electrode and the gate electrode constitute a capacitor. | 06-02-2011 |
| 20110141095 | DISPLAY PANEL DEVICE, DISPLAY DEVICE, AND CONTROL METHOD THEREOF - A display panel device includes: a luminescence element; a capacitor including first and second capacitor electrodes; a driver having a gate connected to the first capacitor electrode for allowing a drain current to flow through the luminescence element; a first switch switchably interconnecting a data line and the first capacitor electrode for supplying a signal voltage to the capacitor; a second switch switchably interconnecting a source of the driver and the second capacitor electrode; and a controller. The controller is configured to: turn ON the first switch while the second switch is ON to supply the signal voltage to the first capacitor electrode and flow a current between the source of the driver and the second capacitor electrode; and, after predetermined time period, turn OFF the second switch to cause non-conduction between the source of the driver and the second capacitor electrode. | 06-16-2011 |
| 20110141165 | DISPLAY PANEL DEVICE, DISPLAY DEVICE, AND CONTROL METHOD THEREOF - A display panel device includes: a luminescence element; a capacitor including first and second capacitor electrodes; a driver having a gate connected to the first capacitor electrode for allowing a drain current to flow through the luminescence element and a source connected to the second capacitor electrode; a first switch switchably interconnecting a data line and the first capacitor electrode for supplying a signal voltage to the capacitor; a second switch switchably interconnecting the drain of the driver and a power line; and a controller. The controller is configured to: turn ON the first switch while the second switch is ON to supply the signal voltage to the capacitor and flow a current between the source of the driver and the second capacitor electrode; and, after predetermined time period, turn OFF the second switch to cause non-conduction between the power line and the drain of the driver. | 06-16-2011 |
| 20110148949 | DISPLAY PANEL DEVICE, DISPLAY DEVICE, AND CONTROL METHOD THEREOF - A display panel device includes: a luminescence element; a capacitor; a driver that passes a drain current through the luminescence element; a data line that supplies a signal voltage to the capacitor; a switch that switchably interconnects the data line and the capacitor; and a controller. The controller is configured to: apply a predetermined bias voltage to a second capacitor electrode to prevent a flow of the drain current; turn ON the switch to supply the signal voltage to a first capacitor electrode; apply a reverse bias voltage to the second capacitor electrode to flow a discharge current between a source of the driver and the second capacitor electrode; and turn OFF the switch, after a lapse of a predetermined period of time since the discharge current is caused to flow, to stop the supply of the signal voltage to the first capacitor electrode. | 06-23-2011 |
| 20110164024 | IMAGE DISPLAY DEVICE AND METHOD OF CONTROLLING THE SAME - An image display device includes a driver having a gate connected to a first electrode of a first capacitor and a source connected to an anode of a luminescence element. A second capacitor is connected to a second electrode of the first capacitor. A first switch supplies a reference voltage to the first electrode of the first capacitor. A second switch supplies a signal voltage to the second electrode of the first capacitor. A third switch connects the anode of the luminescence element to the second capacitor. A method of controlling the image display device includes: supplying the signal voltage to the first capacitor by switching ON the first and second switches when the third switch is OFF; switching OFF the first and second switches to turn ON the third switch after the first capacitor holds a capacitor voltage; and causing the second capacitor to hold a source potential of the driver while the third switch is ON. | 07-07-2011 |
