Patent application number | Description | Published |
20110096049 | DISPLAY DEVICE - A display device includes a photosensor in a pixel region of an active matrix substrate. The photosensor includes a photodiode (D | 04-28-2011 |
20110175086 | PHOTODIODE, MANUFACTURING METHOD FOR THE SAME, AND DISPLAY DEVICE INCLUDING PHOTODIODE - A photodiode ( | 07-21-2011 |
20120086671 | CAPACITANCE VARIATION DETECTION CIRCUIT, AND DISPLAY DEVICE - A capacitance variation detection circuit is provided in which detection sensitivity to variations in the liquid crystal capacitance can be improved. A capacitance variation detection circuit ( | 04-12-2012 |
20120112047 | SENSOR CIRCUIT AND DISPLAY APPARATUS - A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode, a capacitor that is connected to the photodiode via an accumulation node and accumulates charges according to an electric current in the photodiode; a sensor switching element transistor that causes the accumulation node and an output line to be conductive with respect to each other in response to a readout signal and outputs an output signal according to the potential of the accumulation node to the output line; a variable capacitor that is provided between the accumulation node and an input electrode, and whose capacitance varies when a pressure is applied by a touching operation; and a control switching element transistor to which a control signal for switching conduction and non-conduction between the variable capacitor and the accumulation node is input. | 05-10-2012 |
20120113060 | SENSOR CIRCUIT AND DISPLAY APPARATUS - A sensor circuit or a display apparatus from which a highly accurate sensor output can be obtained includes a photodiode (photodetecting element); a capacitor connected to the photodiode via an accumulation node; a reset signal line to which a reset signal is supplied; a readout signal line to which a readout signal is supplied; a thin-film transistor (sensor switching element) that makes the accumulation node and an output line conductive with respect to each other and outputs an output signal according to the potential of the accumulation node; a microswitch that is capable of switching connection and disconnection between the accumulation node and an input electrode and provides connection when a pressure is applied by a touching operation; and a thin-film (control switching element) for switching conduction and non-conduction between the microswitch and the accumulation node. | 05-10-2012 |
20120169962 | OPTICAL SENSOR AND DISPLAY DEVICE - In a liquid crystal display device, noise light to a photodetecting element is reduced, whereby an improved S/N ratio is achieved. The liquid crystal display device includes: a first substrate ( | 07-05-2012 |
20120188207 | DISPLAY DEVICE - To provide a display device having an input function that is not dependent on the light environment, multiple sensor pixel circuits that detect light in a specified detection period and hold the light amount when not in the specified detection period are disposed in a pixel region. In a frame in which input is performed using the sensor pixel circuits, a backlight is lit one time for a time in a frame period, and a first detection period and a second detection period are set one time each in the frame period. The difference between the light amount in the first detection period and the light amount in the second detection period is obtained using a difference circuit. The backlight is in an extinguished state at the beginning of the first detection period, and lighting of the backlight is started at a time during the first detection period. | 07-26-2012 |
20120261557 | DISPLAY DEVICE - Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D | 10-18-2012 |
20120287085 | DISPLAY DEVICE HAVING OPTICAL SENSORS - A liquid crystal display device is provided with a liquid crystal panel | 11-15-2012 |
20130057518 | DISPLAY DEVICE WITH TOUCH SENSOR - Provided is a display device that has a photodetection element in a pixel and can automatically correct a photosensor signal during operation, while resolving offset error with respect to the true black level or white level. As operation modes, a sensor row driver ( | 03-07-2013 |
20130063403 | DISPLAY DEVICE WITH TOUCH SENSOR - Provided is a display device that has a photodetection element in a pixel, and has an input function that is not dependent on the light environment. The display device includes a photosensor in a pixel region. The photosensor includes a first sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when a light source for the sensor is lit, and a second sensor pixel circuit that outputs a sensor signal that corresponds to charge accumulated in an accumulation period when the light source is extinguished. The photosensor has, as operation modes in one frame period, a sensor drive mode for obtaining sensor signals from the first and second sensor pixel circuits, a first correction data acquisition mode for acquiring first correction data for correcting the sensor signal from the first sensor pixel circuit, and a second correction data acquisition mode for acquiring second correction data for correcting the sensor signal from the second sensor pixel circuit. | 03-14-2013 |
20130112880 | DISPLAY DEVICE - A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light sources are turned on. The display device includes: a plurality of infrared LEDs ( | 05-09-2013 |
20130329174 | OPTICAL DEFLECTING ELEMENT - An optical deflecting element ( | 12-12-2013 |
20150070607 | STEREOSCOPIC DISPLAY APPARATUS - A three-dimensional display apparatus includes a display device capable of displaying an image, and a liquid crystal lens disposed so as to overlap the display device. The liquid crystal lens includes an insulating substrate, a first electrode formed extending in a first direction, a second electrode formed substantially parallel to the first electrode, a high resistance portion electrically connecting the first electrode and the second electrode, an opposing substrate, a common electrode, a liquid crystal layer, and a controller. The sheet resistance of the high resistance portion is in 100 GΩ/sq or less. The controller controls, in one of the modes, the first electrode and the second electrode to be at different potentials. | 03-12-2015 |
Patent application number | Description | Published |
20090050891 | PHOTODIODE AND DISPLAY DEVICE - Disclosed is a photodiode having a silicon film ( | 02-26-2009 |
20090066897 | LIQUID CRYSTAL DISPLAY - In a liquid crystal display including a liquid crystal display panel formed by sandwiching a liquid crystal layer between an active matrix substrate and an opposed substrate, and a backlight that illuminates the liquid crystal display panel from a side of the active matrix substrate, a first optical sensor and a second optical sensor are disposed in a peripheral region on a glass substrate of the active matrix substrate. The first optical sensor is formed so that light external to the liquid crystal display and light propagating inside the active matrix substrate enter the first optical sensor. The second optical sensor is formed so that only light propagating inside the active matrix substrate enters the second optical sensor. Also, the second optical sensor is shielded from the external light. For example, a light-shielding film is formed on an upper surface of the second optical sensor. | 03-12-2009 |
20090073345 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display including a liquid crystal display panel formed by sandwiching a liquid crystal layer between an active matrix substrate and a counter substrate, and a backlight system that illuminates the liquid crystal display panel from the active matrix substrate side, an optical sensor for detecting the intensity of ambient light is provided in a peripheral region of a display region in a substrate surface of the active matrix substrate on the liquid crystal layer side. The optical sensor is located near the outer edge of the display region that is perpendicular to the direction (X direction) in which the directivity of emitted light of the backlight system is highest. | 03-19-2009 |
20090122039 | DISPLAY APPARATUS AND ELECTRONIC DEVICE PROVIDED WITH THE SAME - In a display apparatus having an active matrix substrate, a counter substrate provided so as to be opposed to a pixel array region of the active matrix substrate, and a display medium provided in a gap between the active matrix substrate and the counter substrate, an optical sensor ( | 05-14-2009 |
20090135115 | Electronic Device - An electronic device is provided which can appropriately adjust the brightness of a display apparatus in accordance with the lightness of visible light by preventing UV-light from being incident upon an optical sensor. An electronic device having, in a housing, a display apparatus ( | 05-28-2009 |
20100045904 | LIQUID CRYSTAL DISPLAY - A liquid crystal display is provided that can achieve an improvement in sensitivity of a photodiode disposed within a display region of an active matrix substrate. To this end, a liquid crystal display is used that includes: an active matrix substrate | 02-25-2010 |