Patent application number | Description | Published |
20080239179 | Liquid Crystal Device, Method of Driving the Same and Electronic Apparatus - A liquid crystal device that operates in a first operation mode and a second operation mode. The liquid crystal device includes a plurality of scanning lines, a plurality of data lines, a plurality of pixel circuits, a scanning line driving device, and a data line driving device. The plurality of pixel circuits are provided at positions corresponding to intersections of the scanning line and the data lines. Each of the plurality of pixel circuits includes a liquid crystal element that has a first electrode, a second electrode, and a liquid crystal held between the first electrode and the second electrode. A first alignment, which is an initial state, and a second alignment for display are provided for the liquid crystal as an alignment state. The scanning line driving device selects the plurality of scanning lines in a predetermined order. The data line driving device supplies each of the pixel circuits corresponding to the selected one of scanning lines with a writing voltage through the corresponding data line. In the first operation mode, in one frame that includes a first period and a second period, the data line driving device outputs a gray-scale voltage corresponding to a gray-scale to be displayed as the writing voltage in the first period and outputs a first voltage, which is used for maintaining the second alignment, as the writing voltage to the data line in the second period. In the second operation mode, the data line driving device outputs a second voltage, which is used for maintaining the second alignment, as the writing voltage in all the period of the one frame. The second voltage is higher than the first voltage. | 10-02-2008 |
20080259018 | LIQUID CRYSTAL DEVICE, METHOD OF DRIVING THE SAME AND ELECTRONIC APPARATUS - A liquid crystal device has a display mode in which an image is displayed and a non-display mode in which no image is displayed. A scanning line driving device selects a plurality of scanning lines in a predetermined order every unit period. A data line driving device supplies pixel circuits corresponding to a selected one of the scanning lines through the data lines with writing voltages. The data line driving device, in the non-display mode, supplies each data line with the predetermined voltage, as the writing voltage, of which polarity is inverted in a period of integral multiple of the unit period using the reference electric potential as a reference. The scanning line driving device, in the non-display mode, selects each of the scanning lines in a unit period that is longer than the unit period of the display mode. | 10-23-2008 |
20080316151 | Electro-optical apparatus and method of driving the electro-optical apparatus - The invention provides an electro-optical apparatus that can prevent a shift in a threshold voltage of an amorphous silicon transistor while driving an organic EL device in a pixel circuit including the amorphous silicon transistor. A characteristic-adjustment circuit can be provided, which has a function of returning a shift in the threshold voltage of the amorphous silicon transistor included in the pixel circuit to the original state. | 12-25-2008 |
20090033687 | Electro-optical device, method of driving the same, data line driving circuit, signal processing circuit, and electronic apparatus - A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals. | 02-05-2009 |
20090040444 | LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS - An optically compensated birefringence mode liquid crystal device includes each pixel electrode that overlaps a part of an adjacent gate line and/or a part of an adjacent source line in a plan view. | 02-12-2009 |
20090079677 | Driving of data lines used in unit circuit control - The display matrix section | 03-26-2009 |
20090115769 | DA converter, data line driving circuit, electro-optical device, driving method thereof, and electronic apparatus - To simplify s configuration of a current mode DA converter. A data line driving circuit includes DA converting units U | 05-07-2009 |
20090122090 | Data line driving circuit, electro-optic device, and electronic apparatus - To adjust brightness of an electro-optic device for each pixel. A data line driving circuit includes a DAC for generating a gray-scale current according to gray-scale data representing gray-scales of pixels, and a DAC for generating a correction current for correcting the brightness of the pixels. The data line driving circuit generates a voltage according to a current obtained by adding the correction current generated in the DAC to the gray-scale current in the DAC and applies the generated voltage to each data line. | 05-14-2009 |
20090140265 | LIGHT EMITTING DEVICE AND ELECTRONIC APPARATUS - A light emitting device includes a substrate having transparency, a light emitting element that emits light at least to the substrate side, and a light detecting element that is formed between the light emitting element and the substrate. The light detecting element is formed along an outer frame of the light emitting element in a plan view. | 06-04-2009 |
20090140658 | LIGHT EMITTING DEVICE, METHOD OF DRIVING THE SAME, AND ELECTRONIC APPARATUS - There is provided a method of driving a light emitting device including a light emitting element and a unit circuit that is disposed in correspondence with the light emitting element and drives the tight emitting element in accordance with emission control data generated based on image data, wherein the light emitting device has a temperature sensor and a light receiving sensor. The method includes detecting the temperature of the light emitting device by using the temperature sensor, detecting light emitted from the light emitting element by using the light receiving sensor, and generating the emission control data by correcting the image data in response to the temperature of the light emitting device which is detected by the temperature sensor and the detected value of light which is detected by the light receiving sensor. | 06-04-2009 |
20090184986 | Electro-optical apparatus and method of driving the electro-optical apparatus - The invention provides an electro-optical apparatus that can prevent a shift in a threshold voltage of an amorphous silicon transistor while driving an organic EL device in a pixel circuit including the amorphous silicon transistor. A characteristic-adjustment circuit can be provided, which has a function of returning a shift in the threshold voltage of the amorphous silicon transistor included in the pixel circuit to the original state. | 07-23-2009 |
20090190199 | ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, AND DRIVING METHOD - An electro-optical device includes a controller, a reference current source, a correction current source, a combining unit, and an electro-optical element. The controller generates a reference current control signal defining a first period during which a reference current is output, and a correction current control signal defining a second period during which a correction current is output, the second period being shorter than the first period. The reference current source generates the reference current based on the reference current control signal. The correction current source generates the correction current based on the correction current control signal. The combining unit combines the reference current and the correction current to generate a driving current. The electro-optical element emits an amount of light corresponding to the driving current. The controller generates the reference current control signal and the correction current control signal so that the second period is shorter than the first period. | 07-30-2009 |
20090195534 | ELECTRO-OPTICAL DEVICE, METHOD OF DRIVING ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - An electro-optical device includes a plurality of unit circuits that are disposed in correspondence with intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit that sequentially selects the plurality of scanning lines, one scanning line being selected for a drive period of one unit period, and a data line driving circuit that outputs data electric potentials to the plurality of data lines for a write period of the one unit period, the data electric potentials corresponding to gray scale data of the plurality of unit circuits that are in correspondence with the one scanning line selected for the drive period of the one unit period and the write period being a period before the each drive period starts. Each of the plurality of unit circuits has an electro-optical element that has a gray scale level corresponding to the data electric potential, a capacitor element that has a first electrode connected to a capacitor line and a second electrode connected to the data line, and a switching element that is disposed between the second electrode and the electro-optical element and is in a conductive state at a time when the one scanning line is selected by the scanning line driving circuit for making the second electrode and the electro-optical element to be conductive to each other. | 08-06-2009 |
20100079357 | Electronic Circuit, Method of Driving Electronic Circuit, Electro-Optical Device, and Electronic Apparatus - To reduce the time for writing a voltage onto a gate of a driving transistor. In an initialization period, a node B is fixed to an initial voltage V | 04-01-2010 |
20100253708 | ELECTRO-OPTICAL APPARATUS, DRIVING METHOD THEREOF AND ELECTRONIC DEVICE - A electro-optical apparatus includes: a plurality of unit circuits arranged to correspond to intersections of scanning lines and data lines; a scanning line driving circuit; and a data line driving circuit. Each unit circuit includes: an electro-optical element which provides gradation corresponding to the data electric potential; a capacitor element which has a first electrode connected to a capacitor line and a second electrode connected to the data line; and a switching element. A second electrode of the capacitor element included in one of the plurality of unit circuits is connected to one wiring of the respective wirings included in the data line. The second electrode of the capacitor element included in another unit circuit is arranged in parallel with the one unit circuit along an extension direction of the data line and is connected to another wiring of the respective wirings included in the data line. | 10-07-2010 |
20100253713 | ELECTRO-OPTICAL DEVICE AND METHOD FOR DRIVING THE SAME, AND ELECTRONIC APPARATUS - An electro-optical device includes: a plurality of unit circuits arranged corresponding to crossings between a plurality of scanning lines and a plurality of data lines; a plurality of wirings that constitutes each of the plurality of scanning lines; a scanning line drive circuit that sequentially selects one of the scanning lines while sequentially selecting one of the wirings included in the scanning line, at every driving period within each unit circuit; and a data line drive circuit that, at every period within the each unit period which is a writing period before the drive period is started, outputs a data potential in response to the gradation data of the unit circuit, which corresponds to the wiring selected in the driving period within the unit period, to a data line corresponding to the unit circuit out of the each data line. Each of the plurality of unit circuits includes: an electric optical element that displays gradation in response to the data potential; a capacitative element having a first electrode connected to a capacitance line and a second electrode connected to the data line; and a switching element that is disposed between the second electrode and the electric optical element and, by being electrically conducted in selecting one of the wirings by the scanning line drive circuit, allows the second electrode and the electric optical element to be electrically conducted. | 10-07-2010 |
20100259568 | ELECTRO-OPTIC DEVICE, DRIVING METHOD THEREOF AND ELECTRONIC DEVICE - An electro-optic device is provides, which includes: a plurality of unit circuits disposed corresponding to intersection of a plurality of scan lines and a plurality of data lines; control lines extended corresponding to the plurality of each of the scan lines; a scan line driving circuit that sequentially selects one of the scan lines for each drive period within each unit period, and selects all or a portion of the plurality of control lines; and a data line driving circuit that outputs a data potential, in response to grayscale data of the unit circuit corresponding to the scan line selected in the drive period within the unit period, to each of the data lines, for each period within the unit period which is a writing period before the drive period is started. | 10-14-2010 |
20100259571 | ELECTRO-OPTICAL APPARATUS, DRIVING METHOD THEREOF AND ELECTRONIC DEVICE - An electro-optical apparatus includes a plurality of unit circuits arranged to correspond to intersections of a plurality of scanning lines and a plurality of data lines, a plurality of control lines, a scanning line driving circuit which sequentially selects one scanning line in every driving period included in a unit period, and selects the plurality of control lines, and a data line driving circuit which outputs, data electric potentials corresponding to gradation data of the unit circuits corresponding to the scanning line selected in the driving period in the unit period, in every writing period included in each unit period before the driving period begins, wherein each plurality of unit circuits includes an electro-optical element, and a capacitor element which has a first electrode connected to a capacitor line through a first switching element and a second electrode connected to the electro-optical element through a second switching element. | 10-14-2010 |
20100265221 | ELECTRO-OPTICAL DEVICE AND METHOD FOR DRIVING THE SAME, AND ELECTRONIC APPARATUS - An electro-optical device includes a plurality of element driving lines, a plurality of unit circuits, an element driving circuit, and a data line driving circuit. The data potential corresponds to gray scale data of the unit circuit for the element driving line. Each of the plurality of unit circuits includes a capacitive element and an electro-optical element. The electro-optical element is driven in such a manner that a potential difference is generated by supplying a potential to the element driving line. | 10-21-2010 |
20110063275 | ELECTRO-OPTICAL DEVICE AND DRIVING DEVICE THEREOF - The invention provides an electro-optical device having circuits for driving electro-optical elements, such as organic EL elements, and a driving device, which can employ driving elements having low driving ability, such as α-TFTs. By providing a charge storage capacitor between the source electrode and the gate electrode of a driving transistor which is between power sources, the electro-optical device can allow the driving transistor to control a driving current, even when an electro-optical element is connected to the source side of the driving transistor. In addition, driving data can be stored in the charge storage capacitor by applying a predetermined voltage to the source electrode of the driving transistor. | 03-17-2011 |
20120119667 | ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, AND METHOD OF DRIVING ELECTRO-OPTICAL DEVICE - An electro-optical device includes a first pixel circuit which is disposed so as to correspond to each intersection between a scanning line and a first data line, a second pixel circuit which is disposed so as to correspond to each intersection between a scanning line and a second data line, a signal line, a selection section, a driving circuit. In a first selection period, the selection section is operated such that the first data line and the second data line are electrically connected to the signal line. In the second selection period, the selection section is operated such that the second data line is electrically connected to the signal line. In a writing period, the first data potential is supplied to the first pixel circuit and the second data potential is supplied to the second pixel circuit. | 05-17-2012 |
20120153831 | LIGHTING DEVICE, MANUFACTURING METHOD THEREOF, AND ELECTRONIC APPARATUS - A lighting unit includes, a plurality of light emitting elements which has a first substrate, a supporting electrode, light emitting functional layers, first electrodes, and a second electrode; a plurality of fuse units,; an insulating first partitioning wall which separates each of the light emitting functional layers from each other, and each of the first electrodes from each other; and an insulating second partitioning wall which separates each of fuse units from each other. One of the plurality of fuse units electrically connects one of the first electrodes and the supporting electrode. | 06-21-2012 |
20120206508 | ELECTRO-OPTICAL APPARATUS AND METHOD OF DRIVING THE ELECTRO-OPTICAL APPARATUS - The invention provides an electro-optical apparatus that can prevent a shift in a threshold voltage of an amorphous silicon transistor while driving an organic EL device in a pixel circuit including the amorphous silicon transistor. A characteristic-adjustment circuit can be provided, which has a function of returning a shift in the threshold voltage of the amorphous silicon transistor included in the pixel circuit to the original state. | 08-16-2012 |
20120223876 | ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - An electro-optical device includes a first scanning line to which a first signal is supplied, a second scanning line to which a second signal is supplied, the second signal being an inverted signal of the first signal, a data line, a first capacitor having a first end and a second end, a first transistor that is controlled in accordance with the first signal, the first transistor electrically interposed between the data line and the first end of the first capacitor, a second capacitor electrically interposed between the second scanning line and the first end of the first capacitor, an electro-optical element that is controlled in accordance with an electric potential held by the first capacitor. | 09-06-2012 |
20130026929 | ELECTRO-OPTICAL DEVICE, DRIVING METHOD OF ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A pixel circuit includes a driving transistor, a switching transistor, and a light emitting element, and the light emitting elements are formed on a semiconductor substrate. A first substrate potential is supplied to the switching transistor, and a second substrate potential, different from the first substrate potential, is supplied to the driving transistor. | 01-31-2013 |
20130038585 | ELECTRO-OPTICAL DEVICE, METHOD FOR DRIVING ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - An electro-optical device includes a display unit in which a plurality of pixel circuits is arranged; and a driving circuit that is disposed to be distanced from the display unit and outputs a signal for driving the plurality of pixel circuits. The display unit and the driving circuit are formed on a first surface of a semiconductor substrate. Each of the pixel circuits has a first transistor, the driving circuit has a second transistor, and the first transistor is formed in a first well and a first substrate potential is supplied. The second transistor is formed in a second well, the first well has the same conductivity type as the second well has, and the first well and the second well are separated from each other. | 02-14-2013 |
20130119412 | PIXEL CIRCUIT, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - An electro-optical device formed on a semiconductor substrate, includes: a first transistor controlling a current level according to a voltage between a gate and a source; a second transistor electrically connected between a data line and the gate of the first transistor; a third transistor electrically connected between the gate and a drain of the first transistor; and a light-emitting element emitting light at a luminance according to the current level, in which one of a source and a drain of the second transistor and one of a source and a drain of the third transistor are formed by a common diffusion layer. | 05-16-2013 |
20130120341 | ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line. | 05-16-2013 |
20140232007 | SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS - A semiconductor device that is connected to a wiring substrate includes a semiconductor substrate, a circuit provided on the semiconductor substrate, a connection terminal, and a guard ring that is provided on a peripheral region. In the semiconductor device, the guard ring includes a plurality of wiring layers, and a wiring layer included in the guard ring, which is the farthest from the semiconductor substrate, corresponds to a wiring layer closer to the semiconductor substrate relative to a wiring layer of the connection terminal. | 08-21-2014 |