Patent application number | Description | Published |
20090213148 | IMAGE DISPLAY DEVICE - An image display device includes a plurality of pixels, and feeders that commonly supply power to the plurality of pixels. In this image display device, each of the pixels has a light-emitting portion that emits light by a current supplied to the light-emitting portion, a driver that controls light emission of the light-emitting portion, and a switching portion electrically connected to the driver. The parasitic capacitance of the switching portion is determined with respect to each one pixel or one group of pixels according to the voltage drop of said feeder. | 08-27-2009 |
20090303260 | Image Display Device - An image display device includes a plurality of pixels, and a feeder that commonly supply power to the plurality of pixels. In this image display device, each of the pixels has a light-emitting portion that emits light by a current supplied to the light-emitting portion, a driver that controls light emission of the light-emitting portion, and a switching portion connected to the driver. The parasitic capacitance of the switching portion is determined with respect to each pixel according to the amount of the voltage drop of said feeder. | 12-10-2009 |
20090322726 | METHOD OF DRIVING IMAGE DISPLAY APPARATUS - A method of driving an image display apparatus that includes a plurality of pixel circuits each provided with an organic light emitting device and a driving transistor that is electrically connected to the organic light emitting device and controls light emission of the organic light emitting device, includes: feeding the pixel circuits with an image signal corresponding to light emission luminance of the organic light emitting device; applying a reverse bias voltage to the organic light emitting device; and causing the organic light emitting device to emit light based on the image signal. | 12-31-2009 |
20100020065 | IMAGE DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - An object is to improve image quality. In order to achieve this object, a method of driving an image display device comprises the following steps (a) to (c). The image display device includes: a plurality of pixel circuits having respective light emitting elements (OLED), and which are arranged in a plane in a first direction and in a second direction different from the first direction; and a plurality of power source lines each connected in common to the plurality of pixel circuits for each column of pixel circuits formed by arranging a plurality of pixel circuits in the first direction. In the step (a), a voltage drop expected to be generated in one power source line of the plurality of power source lines is derived based on the wiring resistance of the one power source line, and first image data supplied to a plurality of pixel circuits connected in common to the one power source line, and arranged in the first direction. In the step (b), second image data is derived by correcting the first image data based on the voltage drop derived in the step (a). The step (c) is a light emission step of causing the light emitting elements to emit light based on the second image data derived in the step (b). | 01-28-2010 |
20100103081 | IMAGE DISPLAY APPARATUS, AND IMAGE DISPLAY APPARATUS DRIVING METHOD - The life of an image display apparatus is lengthened while suppressing luminance unevenness and cross-talk on the screen. To achieve the object, an image display apparatus includes a light-emitting device of which emission luminance varies with the amount of current, a first transistorin which the amount of current between a first electrode electrically connected to the light-emitting device and a second electrode is adjusted by the potential applied to a third electrode, so as to control the amount of current in the light-emitting device, a second transistor in which the amount of current between a fourth electrode electrically connected to the first electrode and a fifth electrode electrically connected to the third electrode is adjusted by the potential applied to a sixth electrode, and a capacitor having a seventh electrode electrically connected to the third electrode and an eighth electrode. A parasitic capacitance between the fifth electrode and the sixth electrode is set at a larger value than a parasitic capacitance between the fourth electrode and the sixth electrode. | 04-29-2010 |
20100182303 | IMAGE DISPLAY DEVICE - According to one embodiment, an image display device includes: a plurality of pixels including a light-emitting element, a driver element that controls light emission of the light-emitting element, and a capacitive element electrically connected to the driver element; and an image signal line that is commonly connected to the pixels for sequentially supplying, to the pixels, an image signal corresponding to luminous brightness of the light-emitting element. The pixel includes a shield electrode that shields an electric field from the image signal line to the capacitive element. | 07-22-2010 |
Patent application number | Description | Published |
20090273589 | El Device - An EL device includes a substrate having a square shape, an element-forming region provided on an upper surface of the substrate and having organic light-emitting elements, a protruding section arranged in a region between the element-forming region and an end portion of the substrate, and a protection film deposited in a region extending from the element-forming region to the end portion of the substrate and disposed so as to cover the protruding section. The protruding section is disposed in a substantially strip-like shape along at least two of four sides of the substrate. | 11-05-2009 |
20090284511 | Image Display Apparatus and Driving Method Thereof - Disclosed is an image display wherein luminance change due to change of the light-emitting device over time is compensated while suppressing affects of characteristics change in the drive transistor. Specifically disclosed is an image display comprising a plurality of pixels, wherein each pixel has a light-emitting device (OLED) which emits light when current is passed therethrough, a driver device (Td) for controlling light emission of the light-emitting device, and a control circuit (A) which is electrically connected to the light-emitting device and the driver device, and directly or indirectly detects the voltage applied to the light-emitting device at least during when the light-emitting device is emitting light and reflects the detection results to the driver device. | 11-19-2009 |
20100134479 | IMAGE DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - An image display device equalizes an amount of shift in V | 06-03-2010 |
20130043785 | ORGANIC EL DEVICE AND METHOD FOR MANUFACTURING THE SAME - A sealing layer covers more surely both of a display region and a peripheral region on a substrate. A dummy structure is formed in the peripheral region of the substrate. The dummy structure contains, for instance, at least one of the materials constituting an organic EL display structure. The dummy structure is located in the peripheral region so that the volume per unit area of the sealing layer in the peripheral region is substantially the same as that in the display region. | 02-21-2013 |
20130113691 | IMAGE DISPLAY DEVICE - An image display device includes a plurality of pixels, and feeders that commonly supply power to the plurality of pixels. In this image display device, each of the pixels has a light-emitting portion that emits light by a current supplied to the light-emitting portion, a driver that controls light emission of the light-emitting portion, and a switching portion electrically connected to the driver. The parasitic capacitance of the switching portion is determined with respect to each one pixel or one group of pixels according to the voltage drop of said feeder. | 05-09-2013 |
20140354171 | IMAGE DISPLAY DEVICE AND DRIVING METHOD OF THE SAME - An image display device including a light-emitting element configured to emit light corresponding to a current flowing therethrough; a driving element that is connected to the light-emitting element and configured to control light emission of the light-emitting element; and a control unit configured to apply a reverse bias voltage to a first n-type driving element whose the threshold voltage determined at a specific time is equal to or higher than a positive predetermined voltage level for shifting the threshold voltage of the first n-type driving element in a negative direction, and not apply the reverse bias voltage to a second n-type driving element whose the threshold voltage determined at the specific time is lower than the positive predetermined voltage level for shifting the threshold voltage of the second n-type driving element in a positive direction when the light-emitting element does not emit light. | 12-04-2014 |
Patent application number | Description | Published |
20110285691 | VOLTAGE COMPENSATION TYPE PIXEL CIRCUIT OF ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - A voltage compensation type pixel circuit of an AMOLED display device includes a driving transistor serially connected to a light emitting element between high-potential and low-potential power lines to drive the light emitting element in response to a voltage supplied to a first node, a first program transistor for supplying a data voltage of a data line to a second node in response to a scan signal of a scan line, a second program transistor for supplying a reference voltage from a reference voltage supply line to the first node in response to the scan signal of the scan line, a merge transistor for connecting the first and second nodes in response to a merge signal of a merge line, a storage capacitor connected between a third node and the second node interposed between the driving transistor and the light emitting element to store a voltage which corresponds to the data voltage in which the threshold voltage is compensated, and first and second reset transistors for initializing at least two of the first, second, and third nodes to an initialization voltage of an initialization voltage line in response to a reset signal of a reset line. | 11-24-2011 |
20130241916 | VOLTAGE COMPENSATION TYPE PIXEL CIRCUIT OF ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - A voltage compensation type pixel circuit of an AMOLED display device includes a driving transistor serially connected to a light emitting element between high-potential and low-potential power lines to drive the light emitting element in response to a voltage supplied to a first node, a first program transistor for supplying a data voltage of a data line to a second node in response to a scan signal of a scan line, a second program transistor for supplying a reference voltage from a reference voltage supply line to the first node in response to the scan signal of the scan line, a merge transistor for connecting the first and second nodes in response to a merge signal of a merge line, a storage capacitor connected between a third node and the second node interposed between the driving transistor and the light emitting element to store a voltage which corresponds to the data voltage in which the threshold voltage is compensated, and first and second reset transistors for initializing at least two of the first, second, and third nodes to an initialization voltage of an initialization voltage line in response to a reset signal of a reset line. | 09-19-2013 |
20140118321 | DISPLAY DEVICE - A display device according to an embodiment includes a display panel including data lines and gate lines; a gate drive IC to supply gate pulses to the gate lines; and a data drive IC supplying data voltages to the data lines, wherein the gate drive IC is connected to the gate lines through gate link lines, and resistance values of the gate link lines connected from one side edge to another side edge of the gate drive IC are distributed to a curve defined by a fourth order function. | 05-01-2014 |
20140185169 | DISPLAY DEVICE - Disclosed is a display device. The display device includes a panel in which a plurality of pixels are respectively formed in a plurality of pixel areas defined by intersections between a plurality of gate lines and a plurality of data lines, a source driving IC coupled to the plurality of data lines in a first non-display area of the panel and configured to respectively supply data voltages to the plurality of data lines, and an ESD circuit in which, to prevent static electricity from flowing into the plurality of data lines, in the first non-display area, a end of one side of the ESD circuit is coupled to a corresponding data line, a end of the other side is coupled to a power line, and a length of a channel through which a current flows is formed greater than a width of the channel. | 07-03-2014 |