Patent application number | Description | Published |
20100265210 | INFORMATION INPUT DEVICE AND DISPLAY DEVICE - An information input device includes a touch panel configured to be provided with a touch sensor that detects a position at which a sensing object is brought close to a sensing surface. In this information input device, the touch sensor has a scanning electrode and a detecting electrode that is opposed to the scanning electrode with the intermediary of a dielectric substance, and is a capacitive sensor whose electrostatic capacitance changes if the sensing object is brought close to the detecting electrode. Furthermore, a slit is formed in a surface of the detecting electrode opposed to the scanning electrode. | 10-21-2010 |
20100289765 | DISPLAY DEVICE AND ELECTRONIC UNIT - The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit performs the detection operation in a inversion period following an inversion timing of the common drive voltage, based on both first and second detection signals obtained before and after the inversion timing, respectively. | 11-18-2010 |
20100295804 | DISPLAY APPARATUS AND TOUCH DETECTION APPARATUS - A display apparatus includes: a display face; a display function layer adapted to vary display on the display face in response to an inputted image signal; a plurality of driving electrodes disposed separately in one direction; a detection scanning control section configured to apply a detection driving voltage to some of the plural driving electrodes and carry out detection driving scanning while shifting an application object of the detection driving voltage in the one direction on the display face and then control the detection driving scanning such that jump shift of carrying out shift with a pitch of twice or more times a driving electrode pitch is included; and a plurality of sensor lines disposed separately in a direction different from the one direction and responding to touch or proximity of a detection object with or to the display face to exhibit an electric variation. | 11-25-2010 |
20100295824 | DISPLAY DEVICE AND ELECTRONIC UNIT - The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit corrects the detection signal based on a gray scale of the image signal at the time of acquisition of the detection signal, and performs the detection operation. | 11-25-2010 |
20100302202 | Touch sensor, display device, and electronic apparatus - A touch sensor includes a touch drive electrode, a touch detection electrode provided opposed to or side by side with the touch drive electrode and forming an electrostatic capacitance between the touch detection electrode and the touch drive electrode, and a touch detection circuit detecting a contact or proximity position of an object on the basis of a detection signal obtained from the touch detection electrode by applying a touch sensor drive signal to the touch drive electrode. The touch drive electrode is split into plural stripe-like electrode patterns. Applying the touch sensor drive signal to part of the electrode patterns forms a drive line at that time. The touch detection circuit performs a detection on the basis of a first detection signal obtained from a first drive line formed in a first period, and a second detection signal obtained from a second drive line formed in a second period. | 12-02-2010 |
20100309162 | TOUCH PANEL, DISPLAY PANEL, AND DISPLAY UNIT - A touch panel, a display panel, and a display unit achieving prevention of erroneous detection caused by external noise, are provided. The touch panel includes: a plurality of detection scan electrodes extending in a first direction; and a plurality of detection electrodes facing the plurality of detection scan electrodes and extending in a second direction which intersects the first direction. A ratio of fringe capacitance to total capacitance between one or more selected detection scan electrodes and a first detection electrode is different from a ratio of fringe capacitance to total capacitance between the one or more selected detection scan electrodes and a second detection electrode. The one or more selected detection scan electrodes are selected, in a desired unit, from the plurality of detection scan electrodes, to be supplied with a selection pulse, and each of the first and the second detection electrodes is selected from the plurality of detection electrodes. | 12-09-2010 |
20100328255 | TOUCH DETECTION DEVICE AND DISPLAY DEVICE HAVING TOUCH SENSOR FUNCTION - A touch detection device includes: a detection surface; a plurality of sensor lines formed from a plurality of types of wiring lines having a different line capacitance; and a touch detection unit which detects an electric variation generated in a plurality of the sensor lines in response to touch or proximity of a detection target object to the detection surface, wherein the touch detection unit has an operational circuit for generating a detection signal representing the electric variation by performing an operation process using a line capacitance ratio for a plurality of outputs from a plurality of types of the sensor lines neighboring to one another with a different line capacitance. | 12-30-2010 |
20100328268 | INFORMATION INPUT DEVICE AND DISPLAY DEVICE - An information input device includes a touch panel which is provided with a touch sensor capable of sensing a position in which a sensing target body is close to a sensing surface thereof. The touch sensor includes a scanning electrode and a detection electrode which faces and is spaced from the scanning electrode with a dielectric body being interposed therebetween, the touch sensor being configured so that electrostatic capacitance which is formed between the scanning electrode and the detection electrode is varied when the sensing target body is close to the detection electrode. The detection electrode is formed with a slit in a surface thereof which faces the scanning electrode, and a floating electrode is installed in the slit. | 12-30-2010 |
20100328274 | DISPLAY DEVICE AND DRIVING METHOD - Disclosed herein is a display device, including: a display surface; a display functional layer adapted to control the display of a screen viewed from outside the display surface; a drive control section operable to perform display scanning and driving adapted to scan and drive, in the one direction, the plurality of drive electrodes, and also operable to perform, a plurality of times and for M display screens, detection scanning and driving adapted to continuously scan and drive all or part of the plurality of drive electrodes within the period of time; and a plurality of sensor lines arranged in a direction other than the one direction to be separate from each other, which produce an electrical change if an object to be detected comes in contact with or proximity to the display surface while the drive control section performs the detection scanning and driving. | 12-30-2010 |
20100328291 | DISPLAY DEVICE - A display device includes: a display functional layer that can change display for each pixel in accordance with an application voltage; a plurality of driving electrodes separately disposed in one direction; a plurality of pixel signal lines to which pixel signals used for applying the application voltage to the display functional layer in accordance with an electric potential difference from the display reference electric potential are applied; a plurality of detection electrodes that are separately disposed in a direction other than the one direction, are coupled with the driving electrodes as electrostatic capacitance, generate detection electric potentials in response to the detection driving signal, and change the detection electric potential in accordance with approach of a detection target object; and a pixel signal control unit that controls the pixel signals so as to include pixel signals having different polarities during the display period. | 12-30-2010 |
20110128254 | TOUCH SENSOR, DISPLAY AND ELECTRONIC DEVICE - A capacitive type touch sensor appropriately detecting an object, and a display and an electronic device including such a touch sensor are provided. The display including a drive electrode receiving a drive signal, a detection electrode located adjacent to the drive electrode, and a dielectric material located between the drive electrode and the detection electrode defining a capacitive area. The detection electrode generates an output signal driven by the drive signal, a detection circuit electrically connected to the detection electrode sensing the output signal. A switch element is electrically connected between the detection electrode and a voltage source providing a predefined voltage level and having a first state and a second state. A display control circuit controls a voltage applied between a display common voltage electrode and a pixel electrode to display an image based on an image signal, and the display common voltage electrode serves as the drive electrode. | 06-02-2011 |
20110316819 | LIQUID CRYSTAL DISPLAY DEVICE, DRIVING METHOD OF THE SAME AND ELECTRONIC EQUIPMENT - The present disclosure provides a liquid crystal display device including: for each pixel, a first switching element provided in common for a plurality of subpixels making up a pixel, the first switching element having its one end connected to a signal line; for each pixel, a plurality of second switching elements one provided for each subpixel, each of the plurality of second switching elements being connected between the pixel electrode of one of the plurality of subpixels and the other end of the first switching element; and a drive section adapted to turn ON and OFF the plurality of second switching elements in sequence during the ON period of the first switching element and turn OFF the second switching element that turns ON last in sequence first, and then turn OFF the first switching element. | 12-29-2011 |
20110316897 | DISPLAY DEVICE, METHOD FOR DRIVING DISPLAY DEVICE, AND ELECTRONIC APPARATUS - The present application provides a display device having a pixel circuit including: a pixel electrode; a capacitive element configured to be connected to the pixel electrode of liquid crystal capacitance and hold a signal potential reflecting a grayscale; and an inverter circuit configured to invert polarity of a held potential read out from the capacitive element, wherein input potential of the inverter circuit is set to middle potential in an operating supply voltage range of the inverter circuit in operation of inverting the polarity of the held potential and writing an inverted potential to the capacitive element again after reading out the held potential from the capacitive element. | 12-29-2011 |
20120249606 | DISPLAY DEVICE AND ELECTRONIC UNIT - A display device includes: pixels each including a display element; potential lines maintained at respective gray-scale potentials different from one another, the potential lines including first potential lines each maintained at a first gray-scale potential level allowing a luminance gradient to be relatively steep and second potential lines each maintained at a second gray-scale potential level allowing a luminance gradient to be relatively gentle, the luminance gradient representing a magnitude of a display luminance variation caused by a variation in a voltage or current applied to the display element; and a driving section performing display drive on the pixels based on an image signal, through supplying the display element of each of the pixels with a gray-scale potential level of selected one of the plurality of potential lines. A resistance of the first potential line is lower than a resistance of the second potential line. | 10-04-2012 |
20130222439 | IMAGE DISPLAY APPARATUS, METHOD OF DRIVING IMAGE DISPLAY APPARATUS, GRAYSCALE CONVERSION PROGRAM, AND GRAYSCALE CONVERSION APPARATUS - An image display apparatus includes: a grayscale conversion device configured to perform grayscale conversion processing on input data to output data; and a display device configured to operate in accordance with the output data to display an image by pixels arranged in a two-dimensional matrix state, wherein the grayscale conversion device is configured to perform first error diffusion processing for converting N | 08-29-2013 |
20150070318 | DISPLAY DEVICE AND DRIVING METHOD - Disclosed herein is a display device, including: a display surface; a display functional layer adapted to control the display of a screen viewed from outside the display surface; a drive control section operable to perform display scanning and driving adapted to scan and drive, in the one direction, the plurality of drive electrodes, and also operable to perform, a plurality of times and for M display screens, detection scanning and driving adapted to continuously scan and drive all or part of the plurality of drive electrodes within the period of time; and a plurality of sensor lines arranged in a direction other than the one direction to be separate from each other, which produce an electrical change if an object to be detected comes in contact with or proximity to the display surface while the drive control section performs the detection scanning and driving. | 03-12-2015 |