Patent application number | Description | Published |
20080246708 | LIQUID CRYSTAL DEVICE, IMAGE SENSOR, AND ELECTRONIC APPARATUS - The invention provides a liquid crystal device including: a first substrate; a second substrate that is provided over the first substrate in such a manner that the first substrate and the second substrate face each other; a plurality of optical sensing sections that is formed in an image display area over the first substrate; and a plurality of light-amount adjusting sections that is formed in the image display area in such a manner that each of the plurality of light-amount adjusting sections includes a liquid crystal portion that overlaps the corresponding optical sensing section in a plan view, constituting a part of a liquid crystal layer that is sandwiched between the first substrate and the second substrate, the plurality of light-amount adjusting sections being capable of adjusting, independently of one another, the amount of incident light that enters the plurality of optical sensing sections through an image display surface that lies at one of two surfaces of the second substrate that does not face the liquid crystal layer, the image display surface being pointed to by a pointing means. | 10-09-2008 |
20090033850 | LIQUID CRYSTAL DEVICE - A liquid crystal device includes a plurality of selection lines, a plurality of signal lines, a plurality of pixel portions, a plurality of photosensor portions, a plurality of first power lines, and a plurality of sense lines. The plurality of selection lines are provided in a line direction. The plurality of signal lines are provided in a column direction. The plurality of pixel portions are provided at positions corresponding to intersections of the selection lines and the signal lines. The plurality of photosensor portions are provided in correspondence with a portion of the plurality of pixel portions. The plurality of first power lines are provided in the line direction. The plurality of sense lines are provided in the column direction. Each of the plurality of pixel portions includes a first switching element and a liquid crystal. The first switching element loads a display signal supplied through a corresponding one of the signal lines as a selection signal supplied through a corresponding one of the selection lines is asserted. The liquid crystal exhibits a bright state corresponding to the display signal that is loaded by the first switching element. The portion of the plurality of pixel portions adjust the amounts of light that enter the plurality of photosensor portions. Each of the plurality of photosensor portions includes a photoelectric conversion element, a capacitive element, a second switching element, and a readout portion. The photoelectric conversion element generates an electric current of which the magnitude corresponds to the amount of light received. One end of the capacitive element is electrically connected to the photoelectric conversion element. The second switching element resets the one end of the capacitive element to a reset voltage that is supplied through a corresponding one of the first power lines. The readout portion outputs, to a corresponding one of the sense lines, an output signal of which the magnitude corresponds to a voltage of the one end of the capacitive element. The second switching element is controlled to any one of an on state or an off state on the basis of the selection signal that is supplied through the corresponding one of the selection lines. | 02-05-2009 |
20090159906 | Light-emitting device, method for manufacturing light-emitting device, and electronic apparatus - A light-emitting device includes an organic insulating layer lying above a face of a substrate, reflective layers arranged on a face of the organic insulating layer, an inorganic insulating layer extending over the reflective layers, pixel electrodes arranged on the inorganic insulating layer, and light-emitting sections arranged on the respective pixel electrodes. The inorganic insulating layer has openings and regions in which no pixel electrodes are arranged when viewed from above. The openings extend through the respective regions to the organic insulating layer. A method for manufacturing such a light-emitting device includes forming openings in regions of the inorganic insulating layer in advance of the formation of the light-emitting sections such that the openings extend through the regions to the organic insulating layer, the regions having no pixel electrodes thereon when viewed from above. | 06-25-2009 |
20100039411 | METHOD OF DRIVING PIXEL CIRCUIT, LIGHT-EMITTING APPARATUS, AND ELECTRONIC APPARATUS - A pixel circuit includes a light-emitting device, a driving transistor, and a storage capacitance. The method of driving the pixel circuit includes: performing a compensating operation of asymptotically causing the voltage across the storage capacitance to converge with a voltage corresponding to a threshold voltage of the driving transistor, over a time duration variably set according to a gradation value, in a first period; changing the voltage across the storage capacitance from a voltage set by the compensating operation to a voltage corresponding to the gradation value by applying a gradation voltage corresponding to the gradation value from a signal line to a gate of the driving transistor, in a second period; and supplying a driving current corresponding to the voltage across the storage capacitance to the light-emitting device by stopping applying a voltage to the gate, in a third period. | 02-18-2010 |
20100053141 | PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - Provided is a method of driving a plurality of pixel circuits. The pixel circuits are disposed corresponding to intersections between a plurality of scanning lines and a plurality of signal lines. Each of the pixel circuits includes: a light emitting element; a driving transistor connected to the light emitting element in series; a holding capacitor interposed between a gate of the driving transistor and a path between the light emitting element and the driving transistor; and a selection switch electrically interconnecting the signal line and the gate of the driving transistor at the time of the selection of the scanning line. The method of driving the pixel circuits includes: supplying time-divisionally a gradation potential to each signal line during a first period of each of a plurality of unitary periods, selecting the scanning line during a second period after elapse of the first period of the corresponding unitary period, and supplying the gradation potential to the gate of the driving transistor of each of the pixel circuits corresponding to the selected scanning line; controlling the driving transistor of each of the pixel circuits corresponding to one scanning line of the plurality of scanning lines to be in an ON state, supplying a reference potential from an electric supply line to the gate of the corresponding driving transistor, and executing a first compensation operation for making a voltage across the holding capacitor approach asymptotically to a threshold voltage of the driving transistor before start of the unitary period corresponding to the one scanning line; and supplying driving current to the light emitting element in accordance with the voltage across the holding capacitor after elapse of the unitary period corresponding to the one scanning line. | 03-04-2010 |
20100053233 | METHOD OF DRIVING PIXEL CIRCUIT, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - There is provided a method of driving a pixel circuit that includes a light emitting element; a driving transistor that is connected to the light emitting element in series; a storage capacitor that is interposed between a path, which is formed between the light emitting element and the driving transistor, and a gate of the driving transistor; a selection switch that is interposed between the gate of the driving transistor and a signal line; and a first control switch that is interposed between the gate of the driving transistor and the signal line and is connected to the selection switch in series. | 03-04-2010 |
20100079433 | PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series to each other, and a storage capacitor disposed between a path between the light emitting element and the driving transistor and a gate of the driving transistor, the method including the steps of: supplying a driving signal to a gate of the driving transistor; and changing the potential of the driving signal over time so that the time rate of change of the potential of the driving signal at the point in time when the supply of the driving signal stops becomes the time rate of change corresponding to a specified gradation of the pixel circuit. | 04-01-2010 |
20100079507 | PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series, and a storage capacitor disposed between the path between the light emitting element and the driving transistor and the gate of the driving transistor, the method including the steps of: supplying a driving signal, of which the time rate of change of the potential varies over time, to a gate of the driving transistor; stopping the supply of the driving signal at a point in time which is set to be variable in accordance with a gradation specified for the pixel circuit; and supplying a driving current corresponding to an open circuit voltage of the storage capacitor to the light emitting element. | 04-01-2010 |
20100188377 | LIGHT-EMITTING DEVICE AND METHOD FOR DRIVING THE SAME, AND ELECTRONIC DEVICE - A light-emitting device includes a light-emitting element that emits light of an amount based on the size of a driving current; a driving transistor, the gate thereof being electrically connected to a first node, that outputs a current flowing between the drain-source as the driving current; and a control unit that supplies a first data potential to the first node and supplies a current to the driving transistor so as to set the voltage between the gate and source of the driving transistor to a compensated voltage based on the mobility of the driving transistor, and then supplies a second data potential determined in accordance with the first data potential to the first node. | 07-29-2010 |
20100295831 | ELECTROLUMINESCENT DEVICE, METHOD FOR MANUFACTURING ELECTROLUMINESCENT DEVICE, AND ELECTRONIC APPARATUS - An electroluminescent device includes a substrate; a light-emitting region including a plurality of sub-pixels including switching elements, portions of an organic planarization layer for covering irregularities caused by the switching elements, reflective layers arranged on the organic planarization layer, protective layers extending over the respective reflective layers, light-transmissive first electrode layers which lie on the respective protective layers and which are electrically connected to the switching elements, portions of an organic light-emitting layer lying over the first electrode layers, and portions of a second electrode layer lying on the organic light-emitting layer; and a non-light-emitting region located outside the light-emitting region. The light-emitting region and the non-light-emitting region are arranged on the substrate. The organic planarization layer extends from the light-emitting region to the non-light-emitting region and has an upper portion which is located in the non-light-emitting region and which is exposed from the protective layers. | 11-25-2010 |
20100302228 | LIGHT EMITTING APPARATUS, METHOD FOR DRIVING LIGHT EMITTING APPARATUS AND ELECTRONIC APPARATUS - A light emitting apparatus includes a pixel circuit, and a drive circuit which drives the pixel circuit. The pixel circuit has a light emitting device, a driving transistor connected in series to the light emitting device, a capacitative element arranged between a gate and a source of the driving transistor, a first switching device arranged between the gate of the driving transistor and a signal line corresponding to the pixel circuit, and a second switching device arranged between the source of the driving transistor and a reset line. | 12-02-2010 |
20100321422 | LIGHT EMITTING APPARATUS, METHOD OF DRIVING LIGHT EMITTING APPARATUS, AND ELECTRONIC APPARATUS - Provided is a light emitting apparatus where each pixel circuit is provided with the reset transistor, which is disposed between the node of the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit. In addition, in the initialization period before the selection period, in which the scan line corresponding to the pixel circuit is selected, and in the compensation period, the reset transistor of the pixel circuit is set to the ON state, and the values of the power supply voltages output to the first feed line corresponding to the pixel circuit and the first feed line corresponding to the adjacent pixel circuit in the second direction as viewed from the pixel circuit are variably controlled, so that the initialization or compensation operation of the pixel circuit is performed. | 12-23-2010 |
20100328278 | Light Emitting Device, Electronic Device, and Method for Driving Pixel Circuit - A light emitting device includes: a pixel circuit; and a driving circuit that drives the pixel circuit, wherein the pixel circuit includes: a light emitting element; a driving transistor that is connected to the light emitting element in series; a storage capacitor that is located between a gate of the driving transistor and a source of the driving transistor; and a selecting transistor that is located between the gate of the driving transistor and a signal line that corresponds to the pixel circuit, after a writing period starts, the driving circuit sets a potential of a selection signal to a selection potential to turn on the selecting transistor and outputs a data potential to the signal line to cause a current corresponding to the data potential to flow in the driving transistor, the selection signal being to be supplied to the gate of the selecting transistor, the data potential being changed over time, and after the driving circuit sets the potential of the selection signal to the selection potential and outputs the data potential, the driving circuit changes, from the selection potential, the potential of the selection signal over time until the end time of the writing period to turn off the selecting transistor and thereby stop supply of the data potential and sets, to a rate corresponding to a gradation specified for the pixel circuit, a rate of change of the data potential at the time when the supply of the data potential to the driving transistor is stopped. | 12-30-2010 |
20120242884 | IMAGING APPARATUS - An imaging apparatus includes light-transmitting substrate; a plurality of lenses which faces a first surface of the substrate; a light shielding layer which is formed on the second surface of the substrate and has an opening section through which optical axes of each lens pass; and a plurality of light sensing elements which is placed so that the optical axes of the lenses pass through a light sensing surface facing the second surface at an interval. An efficient diameter of the lens, a diameter of the opening section, a distance between the light sensing surfaces and the light shielding layer, a diameter of the light sensing surface, and a distance between the light sensing surface and center of the lens satisfy a<(h·D+h·d−s·d)/s and tan | 09-27-2012 |
20120256089 | SENSING DEVICE AND ELECTRONIC APPARATUS - A light emitting unit is positioned to the subject side than a light receiving unit in a sensing device. The light emitting unit includes a light emitting layer, a first electrode, a second electrode which has an opening, and an insulating layer that is provided at a position that corresponds to the opening portion of the second electrode and that partially insulates the first electrode and the second electrode. The light receiving unit includes a light receiving element that receives reflected light. The light blocking layer is provided at a position that corresponds to the opening portion, and an opening portion is formed thereon. In a case when viewed in a plan view, the light blocking layer overlaps the opening portion, and a light receiving face of the light receiving element is positioned within the opening. | 10-11-2012 |
20120257031 | IMAGE ACQUISITION DEVICE, BIOMETRIC AUTHENTICATION DEVICE, AND ELECTRONIC APPARATUS - An image acquisition device includes: an imaging unit which has a plurality of light receiving elements; a condensing unit which condenses light which is input to the light receiving elements, and includes a plurality of microlenses which are arranged one to one with the light receiving elements on a plane; and a band pass filter including amorphous silicon films on a path on which light from an object is input to the light receiving elements. | 10-11-2012 |
20130093653 | ELECTRO-OPTICAL DEVICE, DRIVING METHOD OF ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - An electro-optical device includes a first storage capacitor that has a first electrode and a second electrode, and a second storage capacitor that has a third electrode and a fourth electrode, and a first pixel circuit. The first pixel circuit includes a first transistor having a first gate, a first drain, and a first source, an electro-optical element, a second transistor through which a first data line is electrically connected to the first gate during the second transistor is in an on-state, and a third transistor through which the first gate is electrically connected to the first drain or the first source. The second electrode and the third electrode are electrically connected to the first data line. | 04-18-2013 |
20130093737 | ELECTRO-OPTICAL DEVICE, DRIVING METHOD OF ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - A first storage capacitor is provided with respect to a data line. A pixel circuit includes a first transistor supplying current according to a voltage between a gate and a source, a light emitting element emitting light corresponding to current supplied by the first transistor, and a second transistor which is configured to be turned on or off between the data line and the gate. In a first period, an initial potential is supplied to the data line by turning on the second transistor, and in a second period, a data signal of a potential corresponding to a gradation level is supplied to the first storage capacitor by turning on the second transistor. After the second period, the second transistor is turned off. | 04-18-2013 |
20140055508 | METHOD OF DRIVING PIXEL CIRCUIT, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - There is provided a method of driving a pixel circuit that includes a light emitting element; a driving transistor that is connected to the light emitting element in series; and a storage capacitor that is interposed between a gate of the driving transistor and a path, which is formed between the light emitting element and the driving transistor. | 02-27-2014 |
20140070100 | SENSING DEVICE AND ELECTRONIC APPARATUS - A sensing device includes a first electrode, a second electrode with a first opening portion, a light blocking layer with a second opening portion, an organic EL layer including a light emitting unit and being formed between the first electrode and the second electrode, and a light receiving unit. The light blocking layer is positioned in the first electrode or between the first electrode and the second electrode, and in plan view from the subject side, the light blocking layer overlaps the first opening portion and the second opening portion is positioned within the first opening portion, and the light receiving unit is positioned further from the subject side than the second electrode, and in plan view from the subject side, the light receiving unit is positioned within the second opening portion. | 03-13-2014 |
20140240306 | PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series to each other, and a storage capacitor disposed between a path between the light emitting element and the driving transistor and a gate of the driving transistor, the method including the steps of: supplying a driving signal to a gate of the driving transistor; and changing the potential of the driving signal over time so that the time rate of change of the potential of the driving signal at the point in time when the supply of the driving signal stops becomes the time rate of change corresponding to a specified gradation of the pixel circuit. | 08-28-2014 |