Patent application number | Description | Published |
20080224755 | LEVEL-SHIFT CIRCUIT, ELECTRO-OPTICAL DEVICE, AND LEVEL SHIFT METHOD - A level shift circuit that converts a level of an input signal having a logic level at a first input electric potential and a logic level at a second input electric potential and that generates an output signal having a logic level at a first output electric potential corresponding to the first input electric potential and a logic level at a second output electric potential corresponding to the second input electric potential. The level shift circuit includes a first power-supply node to which the first output electric potential is supplied, a second power-supply node to which the second output electric potential is supplied, a latch unit having an input node and an output node from which the output signal is output, the latch unit being configured to receive power from the first power-supply node and the second power-supply node and to maintain, if an electric potential of the input node is identical to one of the first output electric potential and the second output electric potential, an electric potential of the output node to be the other one of the first output electric potential and the second output electric potential, a switching element that is provided between the first power-supply node and the input node and controlled to be in an ON state or an OFF state, a control unit that controls the switching element to be in the ON state at a timing corresponding to the time when a level of the input signal changes from the first input electric potential to the second input electric potential, and a setting unit that changes an electric potential of the output node to the first output electric potential in a predetermined period just before the logic level of the input signal changes. | 09-18-2008 |
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 |
20090066676 | DATA LINE DRIVING CIRCUIT, ELECTRO-OPTICAL APPARATUS, AND ELECTRONIC APPARATUS - A data line driving circuit includes a plurality of blocks that are cascaded together, wherein each of the plurality of blocks includes a shift register that sequentially outputs a plurality of selection signals for each block in synchronization with a clock signal; a data synchronization circuit that adjusts a phase of a data signal in which a plurality of items of data are arranged chronologically by using the clock signal as a reference and to output the data signal to a block of the next stage; a data expansion circuit that expands the items of data of the data signal after being adjusted by the data synchronization circuit into a plurality of systems on the basis of the plurality of selection signals; and a signal generation circuit that generates a driving signal corresponding to each item of data after being expanded by the data expansion circuit. | 03-12-2009 |
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 |
20090140631 | LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS - A light-emitting device includes four or more rows of element groups each having light-emitting elements arranged in a first direction, the element groups being arranged in parallel in a second direction different from the first direction. In each of a plurality of unit regions arranged in the first direction, the light-emitting elements belonging to the four or more rows of element groups are arranged at different positions by ones. The four or more rows of element groups includes a first element group, a second element group, and a third element group adjacent to the second element group. In each of the plurality of unit regions, the light-emitting element belonging to the second element group is disposed on one side in the first direction when viewed from the light-emitting element belonging to the first element group, and the light-emitting element belonging to the third element group is disposed on the other side in the first direction when viewed from the light-emitting element belonging to the first element group. | 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 |
20090147512 | LIGHT EMITTING DEVICE AND ELECTRONIC APPARATUS - A light emitting device includes a plurality of light emitting elements aligned along a reference line, a plurality of lenses that collects light emitted from the plurality of light emitting elements, and a drive circuit that allows either a first light emitting element or a second light emitting element to emit light. The plurality of lenses includes a first lens and a second lens that is disposed on an opposite side of the first lens with the reference line interposed therebetween, and a distance between the center of the first lens and the reference line is the same as a distance between the center of the second lens and the reference line. The plurality of light emitting elements includes the first light emitting element and the second light emitting element that is disposed on an opposite side of the first light emitting element with the reference line interposed therebetween. A distance between the first light emitting element and the reference line is the same as a distance between the second light emitting element and the reference line. | 06-11-2009 |
20090321751 | LIGHT EMITTING APPARATUS AND ELECTRONIC DEVICE - A light emitting apparatus includes a light emitting element formed on a surface of a substrate and a light receiving element formed on an area other than an area overlapping the light emitting element on the surface of the substrate, the light receiving element detecting light emitted from the light emitting element. | 12-31-2009 |
20110001740 | PIXEL CIRCUIT, DRIVING CIRCUIT, LIGHT EMITTING APPARATUS, ELECTRONIC APPARATUS AND DRIVING METHOD OF PIXEL CIRCUIT - Disclosed is a pixel circuit including a light emitting element having one terminal and the other terminal, a driving transistor that supplies a driving current to the one terminal of the light emitting element, a first power line electrically connected to the other terminal of the light emitting element and receiving a first potential, a control transistor provided between a second power line, which receives a second potential, and a source of the driving transistor, and having a gate that receives a control signal through a control line, a first capacitor provided between the second power line and a gate of the driving transistor, a second capacitor provided between the gate and the source of the driving transistor, and a select transistor provided between a data line, which receives a data potential, and the gate of the driving transistor, and having a gate that receives a scanning signal through a scanning line. | 01-06-2011 |