| Patent application number | Description | Published |
|---|
| 20090174641 | METHOD OF DRIVING LIQUID CRYSTAL DISPLAY DEVICE, AND LIQUID CRYSTAL DISPLAY APPARATUS - A drive circuit of a liquid crystal display device includes a driver circuit that applies a voltage pulse to a liquid crystal of the liquid crystal display device, and a control circuit that controls the driver circuit to change the liquid crystal to a initial tone and to change the initial tone to a high tone, an intermediate tone, or a low tone. The control circuit sets a tone energy difference so as to be smaller at the intermediate tone than at the high tone close to the initial tone, the tone energy difference being a difference between an application energy of the voltage pulse applied to the liquid crystal of the initial tone to display a predetermined tone and an application energy of the voltage pulse applied to display a tone different from the predetermined tone. | 07-09-2009 |
| 20090322663 | DISPLAY DEVICE - A display device with low power consumption capable of canceling the collapse of gradation and skip of gradation in a high gradation part and a low gradation part and of displaying an even gradation in a wide range has been disclosed. The display device comprises a display element of dot matrix type having a display material with memory properties, a drive circuit that drives a pixel of the display element, and a control circuit that controls the drive circuit, wherein the control circuit executes an initialization step for applying a voltage pulse to initialize a pixel to be rewritten to bring the pixel into an initialization state and a gradation step for applying a voltage pulse to change the gradation state of a pixel, and in the gradation step, an alternating voltage pulse is formed in a pixel to be rewritten and the period and voltage of the alternating voltage pulse are varied in accordance with a gradation to be written. | 12-31-2009 |
| 20100194793 | CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE - A display device includes: a display element of a dot matrix type; a row driver that drives a row electrode of the display element; a column driver that drives a column electrode of the display element; and a multiple voltage power source that supplies a drive voltage to the row driver and the column driver, wherein: the row driver and the column driver are configured by a segment driver; and the device includes a power source switching switch which switches drive voltages to be supplied to the row driver in accordance with the polarity of an applied voltage to be applied to a pixel of the display element. | 08-05-2010 |
| 20110102691 | PANEL MODULE, DRIVING CIRCUIT AND DISPLAY DEVICE - A display device selects one or more of first electrodes corresponding to image data using a general-purpose segment driver and applies predetermined voltages respectively to the first electrodes of selection targets and non-selection targets. A driver control circuit outputs, according to a pulse polarity control signal, inverted image data or un-inverted image data to a segment driver. The segment driver applies voltage to second electrodes based on the image data acquired from the driver control circuit. | 05-05-2011 |
| 20110122104 | LIQUID CRYSTAL DRIVING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal driving device includes a plurality of scan electrodes; a signal electrode arranged along a direction that intersects with the plurality of scan electrodes and forms a pixel for each intersection with the plurality of scan electrodes; and a control circuit configured to set a drawing line that is made up of series of the pixels, and a plurality of pre-drive lines that are different from the drawing line along a direction in parallel with the scan electrode and supplies image data that corresponds to the drawing line from the signal electrode while shifting the drawing line and the plurality of pre-drive lines to a direction that intersects with the scan electrode. The control circuit discretely drives the plurality of pre-drive lines. | 05-26-2011 |
| 20110148845 | DRIVING METHOD OF A DISPLAY DEVICE AND DISPLAY DEVICE - A driving method of a display device includes: supplying a first drive voltage from a first circuit, which is driven using a first power-supply voltage from a first power source, and a second drive voltage from a second circuit, which is driven using a second power-supply voltage from a second power source that is lower than the first power-supply voltage; causing a driver circuit section that drives a display element to charge, using the second drive voltage, a display element in a non-selected region in a display element section that includes a plurality of display elements; maintaining a voltage of the display element in the non-selected region, using the second drive voltage. | 06-23-2011 |
| 20110148854 | VOLTAGE SUPPLY CIRCUIT AND DISPLAY APPARATUS - A voltage supply circuit includes a switching circuit to switch among a plurality of driving voltages including a first driving voltage and a second driving voltage lower than the first driving voltage based on an operation mode of a display apparatus and control at least one of a switching speed and a switching timing so that one of a first switching speed and a first switching timing to the first driving voltage becomes faster than a corresponding one of a second switching speed and a second switching timing to the second driving voltage. | 06-23-2011 |
| 20110210953 | LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DRIVING METHOD - A liquid crystal display device includes a segment driver, a common driver, and a voltage setting unit. The voltage setting unit derives a voltage at which a previous drive line becomes a focal conic state regardless of image data by applying a synthesized voltage of a voltage that is applied from the segment driver and a voltage that is applied from the common driver to the previous drive line. Then, the voltage setting unit sets the voltages that are applied from the segment driver and the common driver on the basis of the derived result. | 09-01-2011 |
