Patent application number | Description | Published |
20110057908 | LIQUID CRYSTAL DISPLAY DEVICE WITH A BUILT IN TOUCH SCREEN - A liquid crystal display device having a built in touch screen including a first substrate having pixel units comprising: a plurality of pixels displaying an image and sensor regions having light sensors formed adjacent to the corresponding pixel units to sense a position of a contacted object; a second substrate disposed on the first substrate, comprising: color filters formed on regions corresponding to the pixel units and first black matrices formed on regions corresponding to the sensor regions of the pixel units; a liquid crystal layer interposed between the first substrate and the second substrate; and a backlight assembly disposed on a bottom portion of the first substrate and providing light to the first substrate and the second substrate. The liquid crystal display device with the built in touch screen determines a point of contact on the touch screen. | 03-10-2011 |
20110080358 | LIQUID CRYSTAL DISPLAY WITH BUILT-IN TOUCH SCREEN - A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, and a transparent electrode layer and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; a touch screen driver circuit to measure a capacitance variation sensed through a first sensing line connected to the transparent electrode layer and to calculate a touch area using optical information sensed through a second sensing line connected to the photosensors when a contact object is in contact with the LCD panel, and to output position information of the contact object, sensed by determining whether a touch occurs and whether a multi-touch occurs using the capacitance variation and the touch area. | 04-07-2011 |
20110096027 | Sensor scan drivers, flat panel displays with built-in touch screen including such a sensor scan driver, and methods of driving such flat panel displays - A sensor scan driver may include a shift register unit for driving photodiodes, a transmission gate unit for changing a voltage range of sensor scan signals generated by the shift register unit, and a buffer unit for supplying the sensor scan signals supplied from the transmission gate unit to the photodiodes, wherein the transmission gate unit includes first and second transmission gates, each including an electrode adapted to receive an output signal of the shift register unit, another electrode adapted to receive the inverted output signal of the shift register unit, an input terminal coupled to first and second power sources, respectively, and an output terminal coupled to an output terminal of the transmission gate unit. | 04-28-2011 |
20110102365 | FLAT PANEL DISPLAY WITH BUILT-IN TOUCH SCREEN AND A METHOD OF DRIVING THE SAME - A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors. | 05-05-2011 |
20120127148 | DISPLAY SUBSTRATE, DISPLAY PANEL AND DISPLAY DEVICE - A display substrate includes an insulating substrate, a first gate line, a first lower electrode, a second lower electrode, a first upper electrode, and a second upper electrode. The insulating substrate includes a first pixel region and a second pixel region located at a first direction from the first pixel region. The first gate line extends in a second direction crossing the first direction on the insulating substrate. The first and the second lower electrodes are in the first and the second pixel regions, respectively. The first upper electrode overlaps the first lower electrode in the first pixel region and includes a first slit pattern extending in a third direction different from the first and the second directions. The second upper electrode overlaps the second lower electrode in the second pixel region and includes a second slit pattern extending in a fourth direction different from the first to third directions. | 05-24-2012 |
20120242942 | Fringe field switching mode liquid crystal display apparatus and method of manufacturing the same - Embodiments may include a fringe field switching mode liquid crystal display (LCD) apparatus. The fringe field switching mode LCD apparatus includes a first substrate on which a first electrode and a second electrode are installed, the second electrode facing the first electrode and having a plurality of slits therein; a second substrate, which faces the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, the first electrode having a protrusion at a slit end portion of the slits, the protrusion protruding toward the second electrode. | 09-27-2012 |
20140097439 | THIN-FILM TRANSISTOR ARRAY SUBSTRATE AND DISPLAY DEVICE INCLUDING THE SAME - A TFT array substrate includes: a first insulation layer over a semiconductor layer; a second insulation layer over a plurality of first gate wires formed on the first insulation layer; a third insulation layer over a plurality of second gate wires formed on the second insulation layer; a cover metal formed over the third insulation layer and contacting the semiconductor layer through a contact hole that passes through the first, second and third insulation layers; a fourth insulation layer over the cover metal; a protection layer formed over the fourth insulation layer; and an anode electrode formed over the protection layer and contacting the cover metal through a via hole that passes through the protection layer, the fourth insulation layer, and the contact hole. | 04-10-2014 |
20140097440 | FLEXIBLE DISPLAY PANEL - A flexible display panel includes a first display region that is flat, second display regions located at both sides of the first display region and curved by a predetermined angle, a plurality of pixels formed in the first display region, and a plurality of pixels formed in the second display regions, Each of the plurality of pixels formed in the first display region and the second display regions includes a light-emitting diode and a driving thin-film transistor (TFT) connected to the light-emitting diode, the driving TFT supplying a driving current to the light-emitting diode. A size of the driving TFT varies for each of the plurality of pixels formed in the second display regions so that driving currents supplied by driving TFTs in the second display regions vary in one direction with respect to boundaries between the first display region and the second display regions. | 04-10-2014 |
20140098078 | ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode (OLED) display includes: a substrate; a scan line formed on the substrate and that transfers a scan signal; a data line and a driving voltage line that intersect the scan line and that transfer a data signal and a driving voltage, respectively; a switching thin film transistor (TFT) connected to the scan line and the data line; a driving TFT connected to the switching TFT and the driving voltage line; an OLED connected to the driving TFT; a storage capacitor connected between the driving voltage line and a driving gate electrode of the driving TFT; and a boosting capacitor connected to the storage capacitor, wherein the storage capacitor has at least one capacitor opening. | 04-10-2014 |
20140098495 | DISPLAY APPARATUS - The present invention provides a display substrate for reducing resistance deviation occurring in a fan out unit, and a display apparatus including the display substrate. According to the present invention, resistance units are disposed in lines having a relatively short length in an area where lengths of adjacent lines increase or decrease non-linearly, and the adjacent lines have substantially equal resistance or have linear resistance variation. | 04-10-2014 |
20140118319 | FLEXIBLE DISPLAY DEVICE AND METHOD OF COMPENSATING FOR LUMINANCE OF THE FLEXIBLE DISPLAY DEVICE - A flexible display device and a method of compensating for luminance of the flexible display device, the flexible display device including: a flexible display panel including a first display region and second display regions at opposite sides of the first display region and having a shape of a curved surface that is bent from a central axis of the flexible display panel at a angle; optical sensors disposed in each of the first display region and the second display regions and measuring amounts of light in the first display region and the second display regions; and a luminance compensation unit compensating luminance of the first display region and luminance of the second display regions based on the measured amounts of light. | 05-01-2014 |
20140198067 | ORGANIC LIGHT EMITTING DISPLAY INTEGRATED WITH TOUCH SCREEN PANEL - An organic light emitting display integrated with a touch screen panel includes a first substrate, the first substrate having pixels and having signal lines coupled to the pixels, and a second substrate, the second substrate being on the first substrate to seal the first substrate, the second substrate having sensing electrodes of the touch screen panel on a surface thereof. The signal lines include first and second signal lines, the first and second signal lines being arranged in a direction that intersects the sensing electrodes, the first and second signal lines receiving different signals, respectively, and functioning as first and second driving electrodes of the touch screen panel. | 07-17-2014 |
20140210736 | ORGANIC LIGHT EMITTING DISPLAY INTEGRATED WITH TOUCH SCREEN PANEL - An organic light emitting display can be integrated with a touch screen panel, in which control lines arranged in the touch screen panel are used as driving electrodes of a mutual capacitive touch screen panel, and a signal applied to the control lines in a touch recognition operation is input in synchronization with the signal applied to a display panel without having influence on the display. The control lines used as driving electrodes of the touch screen panel can be electrically connected to auxiliary lines arranged close to sensing electrodes of the touch screen panel, thereby improving touch recognition sensitivity. | 07-31-2014 |
20140320545 | PIXEL CIRCUIT OF ORGANIC LIGHT-EMITTING DISPLAY - A pixel of an OLED display is disclosed. A gate voltage of a driving transistor can be precisely adjusted using a second gate electrode that can supply DC power easily securing an operation range of an OLED. Further, by only adding one power line that can precisely adjust a gate voltage of a driving transistor to an OLED display, an operation range of the OLED can be easily secured and thus a drain current can be reduced without increasing a channel length of the driving transistor resulting in a narrower pixel area. According to various embodiments, the pixel can secure an operation range of the OLED by reducing a magnitude of a drain current by adjusting a gate voltage of a driving transistor. | 10-30-2014 |
20140376136 | DISPLAY APPARATUS - A display apparatus includes a display unit including a thin film transistor (TFT) and a display device. The display device is electrically connected to the TFT and displays an image. A circuit unit is disposed at a side of the display unit and includes a driving device or a signal line unit. The circuit unit includes a damage inducing unit electrically coupled to a conductor in the circuit unit. The damage inducing unit forcibly discharges an electrostatic discharge (ESD) introduced into the circuit unit, thus preventing damage to the driving device or the signal line unit due to the ESD. | 12-25-2014 |
20150021561 | THIN FILM TRANSISTOR ARRAY SUBSTRATE AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS INCLUDING THE SAME - A thin film transistor array substrate includes: a driving thin film transistor including an active layer having a bent shape, where the active layer includes: a first active pattern extending substantially in a first direction; and a second active pattern extending substantially in a second direction perpendicular to the first direction and connected to the first active pattern, and a gate electrode disposed on the active layer, where gate electrode overlaps the first active pattern and exposes the second active pattern; and a capacitor including a first electrode defined by the gate electrode of the driving thin film transistor, and a second electrode disposed on the first electrode, where the second electrode overlaps substantially an entire surface of the first electrode. | 01-22-2015 |