Patent application number | Description | Published |
20080218489 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A method of driving a display device having a plurality of pixels, a plurality of sensing units, and a plurality of sense data lines to which the plurality of sensing units are connected, includes: reading sense signals from the sense data lines; determining whether or not the display has been touched and the number of touches, generating X-axis and Y-axis position data based on the sense signals, and determining, when the quantity of touches is plural, whether a plurality of touches are sequentially generated, and the touch position of each. | 09-11-2008 |
20090002336 | DISPLAY DEVICE INCLUDING INTEGRATED TOUCH SENSORS - A display device including a plurality of sensing units, a plurality of first sensing signal lines, a first output unit, a first sensing output line, and a sensing signal processor. The sensing units are arranged in a matrix and generate a detection signal according to user contact. The first sensing signal lines transfer the detection signal of the sensing unit arranged in a first direction. The second sensing signal lines transfer the detection signal of the sensing units arranged in a second direction that is perpendicular to the first direction. The first output unit sequentially outputs the detection signals of the first sensing signal lines. The first sensing output line extends in the second direction for transferring the detection signal of the first output unit. The sensing signal processor determines whether contact is made or not by processing the detection signals of the first sensing signal lines and the second sensing signal lines. The non-display area of the liquid crystal panel assembly can be reduced by sequentially outputting the sensing data signals of the row and column sensing signal lines through the small amount of wiring. Therefore, an IC can be reduced in size. | 01-01-2009 |
20090050376 | METHOD OF DETECTING A TOUCH POSITION AND TOUCH PANEL FOR PERFORMING THE SAME - A method of detecting a touch position and a touch panel for performing the method are disclosed. In the above-mentioned method, a plurality of scan signals is sequentially supplied to a plurality of first sensor lines arranged in a first direction. Then, at least one of the scan signals is analyzed based on touch events, which is transferred from the first sensor lines to a plurality of second sensor lines arranged in a second direction substantially across to the first direction, and then at least one of touch positions is detected. Therefore, a plurality of scan signals is sequentially applied to the first sensor lines in the first direction, so that a plurality of touch events is simultaneously detected so that a plurality of touch positions may be detected. | 02-26-2009 |
20090066861 | Display and Method of Manufacturing the Same - A display with a built-in touch panel and a method of manufacturing the same are provided. The display includes: a first substrate and a second substrate, wherein the first substrate and the second substrate are disposed to face each other. A conductive spacer having a first end is positioned on the first or second substrate. A cell gap spacer is disposed between the first and second substrates and at least one subsidiary cell gap spacer having a first end is disposed on the first or second substrate and positioned adjacent to the cell gap spacer. The cell gap spacer is also disposed close to the conductive spacer, and the subsidiary cell gap spacer is disposed adjacent to the cell gap spacer. Additionally, a cell gap spacer is disposed in every unit pixel, and a subsidiary cell gap spacer is disposed adjacent to each cell gap spacer. | 03-12-2009 |
20090073138 | Display panel and display apparatus having the same - A display panel having a touch screen, the display panel includes an array substrate having a plurality of pixels and an opposite substrate having a plurality of touch electrodes. The array substrate includes the pixels receiving a data signal through thin film transistors and sensors electrically and physically making contact with the touch electrodes in response to an external pressure. Each sensor generates a common voltage input through the touch electrode in response to a scan signal controlling the thin film transistor as a sensing signal. Based on the generated sensing signal, a location coordinate to which the external pressure is applied is calculated, so that the number of wires for the display panel may decrease. | 03-19-2009 |
20090146964 | TOUCH SENSING DISPLAY DEVICE AND DRIVING METHOD THEREOF - In a touch sensing display device, a plurality of sensor scanning lines extend in a first direction and sequentially receive a first voltage, and a plurality of sensor data lines extend in a second, different, direction. A plurality of sensing elements are formed in regions defined by the sensor scanning lines and the sensor data lines, and each sensing element transmits the first voltage from a corresponding sensor scanning line to a corresponding sensor data line responsive to an external touch. A sensing signal processor converts voltages of the sensor data lines into sensing data, and, a touch determining unit processes the sensing data corresponding to the sensor scanning lines by at least one scanning line to determine positions of touch regions generated during at least one frame. | 06-11-2009 |
20090207124 | DISPLAY DEVICE AND PORTABLE TERMINAL HAVING THE SAME - In accordance with one or more embodiments of the present disclosure, a display device includes a driver, a main display panel that receives an image signal from the driver to display an image and that is substantially fixed to the driver, a backlight assembly that is disposed between the main display panel and the driver to radiate light to a rear surface of the main display panel, and a sub-display panel that receives a image signal from the driver to display an image and that can be moved. The display device includes a first mode, in which the sub-display panel is disposed to be opposite to a rear surface of the main display panel, and a second mode, in which the sub-display panel is disposed to be opposite to a front surface of the main display panel. | 08-20-2009 |
20100039408 | LIGHT PEN, PHOTO DETECTIVE LIQUID CRYSTAL DISPLAY DEVICE AND DISPLAY DEVICE HAVING THE LIGHT PEN - A photo detective LCD device includes a light pen. The light pen includes a body, a driving pulse generating module and a light generating module. The body has a pen shape, and an end of the body includes an opening through which light exits. The driving pulse generating module is disposed in the body and generates first and second driving power pulses having first and second frequencies, respectively. The light generating module generates first and second light in response to the first and second driving power pulses, respectively. The first and second light flickers in a third frequency and a fourth frequency, respectively. The power consumption is reduced, and the brightness of sensing light is enhanced. The light pen generates light having at least two different frequencies, and the display device recognizes light generated from the light pen effectively. Therefore, the display device may operate without failure. | 02-18-2010 |
20100066655 | THIN FILM TRANSISTOR PANEL AND LIQUID CRYSTAL DISPLAY USING THE SAME - An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area. | 03-18-2010 |
20100117980 | TOUCH SENSIBLE DISPLAY DEVICE - A display device according to an embodiment of the present invention includes: a display panel; a plurality of pixels disposed on the display panel; a plurality of sensor data lines disposed on the display panel and disposed between two adjacent pixels; and a plurality of sensing units disposed on the display panel and disposed between two adjacent pixels. | 05-13-2010 |
20100195032 | LIGHT SENSING ELEMENT, ARRAY SUBSTRATE HAVING THE SAME AND LIQUID CRYSTAL DISPLAY APPARATUS HAVING THE SAME - In a light sensing element having simplified structure, an array substrate having the light sensing element and an LCD apparatus having the light sensing element, the light sensing element includes a first electrode, a control electrode and a second electrode. An alternating bias voltage is applied to the first electrode. An off voltage is applied to the control electrode. The second electrode outputs a light-induced leakage current based on an externally provided light and the bias voltage. Therefore, the array substrate includes one light sensing switching element corresponding to one pixel so that structure of the array substrate is simplified and opening ratio is increased. | 08-05-2010 |
20100259520 | DISPLAY PANEL, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF MANUFACTURING THE SAME - A display panel including a first capacitor and a second capacitor is disclosed. The first and second capacitors boost a second driving voltage from a driving chip and apply the boosted second driving voltage to the driving chip. The driving chip receives the boosted second driving voltage and outputs a first driving voltage to drive the display panel. Thus, the display panel does not require any additional capacitor for boosting the second driving voltage, thereby reducing a thickness and a manufacturing cost of the display panel. | 10-14-2010 |
20110018893 | SENSING DEVICE AND METHOD OF SENSING A LIGHT BY USING THE SAME - In a sensing device and a method for sending a light by using the same, the sensing device includes: a lower panel; an upper panel facing the lower panel; a liquid crystal layer disposed between the lower panel and the upper panel; an infrared ray sensor formed in at least one of the lower panel and the upper panel; and a visible ray sensor formed in at least one of the lower panel and the upper panel. The sensing device simultaneously includes the infrared ray sensor and the visible ray sensor such that a touch sensing function or an image sensing function having high reliability may be realized. | 01-27-2011 |
20110122084 | DISPLAY PANEL, DISPLAY APPARATUS HAVING THE SAME, AND METHOD THEREOF - A display panel includes an array substrate and an opposite substrate. The array substrate includes a plurality of data lines, a plurality of gate lines, a plurality of first signal lines, a plurality of second signal lines and a plurality of pixels. Each of the pixels includes a pixel electrode and a common electrode insulated from the pixel electrode. The opposite substrate includes a plurality of connecting members. At least one of the connecting members is electrically connected to at least one of the first signal lines and the second signal lines by an externally provided pressure. Thus, when an externally provided pressure is applied to the display panel in order to perform a touch screen function, an alignment of the liquid crystal molecules disposed on the array substrate may not be substantially changed, and a display quality may be improved. | 05-26-2011 |
20120068989 | GATE DRIVING CIRCUIT AND DISPLAY APPARATUS HAVING THE SAME - A liquid crystal display apparatus including a gate driving circuit disposed on a liquid crystal display is provided. The apparatus further includes a data driving chip, disposed on the liquid crystal display panel, to apply data driving signals to data lines. The gate driving circuit includes a plurality of stages connected to one another in parallel. The odd-numbered stages of the stages each apply gate driving signals to odd-numbered gate lines of the gate lines, in response to a first clock signal and the even-numbered stages of the stages each apply the gate driving signals to even-numbered gate lines of the gate lines, in response to a second clock signal having an opposite phase from a phase of the first clock signal. | 03-22-2012 |
20150029158 | SENSING DEVICE AND METHOD OF SENSING A LIGHT BY USING THE SAME - In a sensing device and a method for sending a light by using the same, the sensing device includes: a lower panel; an upper panel facing the lower panel; a liquid crystal layer disposed between the lower panel and the upper panel; an infrared ray sensor formed in at least one of the lower panel and the upper panel; and a visible ray sensor formed in at least one of the lower panel and the upper panel. The sensing device simultaneously includes the infrared ray sensor and the visible ray sensor such that a touch sensing function or an image sensing function having high reliability may be realized. | 01-29-2015 |