| Patent application number | Description | Published |
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| 20100097349 | METHOD AND APPARATUS FOR DETECTING TOUCH POINT - A method of detecting a touch point includes detecting an edge image of a finger image from an input image, generating a touch point image utilizing the detected edge image, and calculating coordinates of the touch point from the touch point image. The touch point image may be generated by setting a center at a position separated by a set distance in a gradient direction with respect to a position where the edge image is detected, and generating the touch point image by summing up gradient magnitude values with respect to a set area based on the set center. The coordinates of multiple touch points may be calculated by updating coordinates of the multiple touch points according to the gradient magnitude values accumulatively summed up in the multiple touch points based on a comparison between the coordinates of the multiple touch points and the set distance. | 04-22-2010 |
| 20100097352 | TOUCH SCREEN DISPLAY AND METHOD OF DRIVING THE SAME - A TSD (Touch Screen Display) includes a panel including a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel; a touch position deriving unit to derive a touch position of the object based on output signals of the photo sensors; and a light emission control unit to derive a probability of a plurality of previous touch positions derived by the touch position deriving unit, predict a next touch position after the plurality of previous touch positions according to the probability, and control at least one of the light emitting devices in a light emission area including the next touch position to emit light. | 04-22-2010 |
| 20100097391 | TOUCH SCREEN DISPLAY APPARATUS FOR PERFORMING FLASH MODE AND METHOD OF OPERATING THE APPARATUS - A touch screen display apparatus includes a panel including a light emitting device for displaying a display image and an optical sensor for generating a touch image object; a touch sensing unit on the panel for sensing a touch of a touch object; and a light emission controller for controlling the light emitting device to emit light when a touch of the touch object is sensed by the touch sensing unit. | 04-22-2010 |
| 20100271346 | Electronic imaging device and driving method thereof - An electronic imaging device includes a display unit having a plurality of scan lines, a plurality of data lines, and a plurality of pixels, and a barrier layer disposed in front of the display unit and divided into a plurality of areas along a scan direction. The barrier layer includes a plurality of first barrier electrodes and a plurality of second barrier electrode. The plurality of first barrier electrodes includes a plurality of first and second sub-electrodes in a zigzag pattern along the scan direction, the plurality of second barrier electrodes includes a plurality of third and fourth sub-electrodes in a zigzag pattern along the scan direction, and the third and fourth sub-electrodes being offset with respect to the first and second sub-electrodes along the scan direction. | 10-28-2010 |
| 20100283756 | METHOD AND APPARATUS FOR RECOGNIZING TOUCH - A method for recognizing a touch of an object on a display device including optical sensors, the method including: detecting a touch of an object by utilizing a contact-detecting layer in the display device; generating an image of the touch of the object corresponding to sensor signals sensed by the optical sensors; detecting touch points corresponding to the image of the touch of the object; and determining information of the touch of the object based on the detected touch points. | 11-11-2010 |
| 20110043713 | Stereoscopic image display device - A stereoscopic image display device includes a display panel configured to display an image, a barrier placed over the display panel and configured to include a plurality of liquid crystal cells each of which is selectively driven to become a transparent cell or an opaque cell, a polarizing plate placed between the display panel and the barrier, and a phase retarder placed between the internal polarizing plate and the display panel. | 02-24-2011 |
| 20110057893 | Touch screen panel - A touch screen panel comprises a glass substrate having a display area and a non-display area, a plurality of sense patterns on the display area, a plurality of metal pads on a periphery of the display area and on the non-display area, a plurality of sense lines on the non-display area, and dummy patterns on an area between the plurality of sense lines on the non-display area. The non-display area is outside a periphery of the display area. Each of the plurality of the sense lines is coupled to one of the plurality of metal pads. The display area and non-display area of the glass substrate respectively correspond to a display area and non-display area of an image display device to which the touch screen panel is provided. | 03-10-2011 |
| 20110122087 | TOUCH SCREEN SYSTEM AND METHOD OF DRIVING THE SAME - A touch screen system includes a touch screen panel which includes driving lines, sensing lines crossing the driving lines, and sensing cells formed at crossing regions of the driving lines and the sensing lines; a driving circuit for sequentially applying driving signals to the driving lines; a sensing circuit for detecting first sensing signals in accordance with changes in mutual capacitances of the sensing cells to generate second sensing signals corresponding to the changes; a processor for determining a touch position based on the second sensing signals from the sensing circuit; and an active stylus separated from the touch screen panel and configured to output an active stylus electric field in synchronization with a driving signal of the driving signals applied to a driving line coupled to a sensing cell of the sensing cells adjacent to the active stylus when the active stylus approaches or contacts the touch screen panel. | 05-26-2011 |
| 20110122096 | METHOD OF DRIVING TOUCH SCREEN DISPLAY APPARATUS, MEDIUM FOR RECORDING METHOD, AND TOUCH SCREEN DISPLAY APPARATUS - A touch screen display apparatus includes a touch detector for detecting a touch by an object and for generating an input signal, a panel including photo sensor units for capturing an image of the object, and a plurality of light emitting units for realizing an image to be displayed, a signal converter for converting the input signal into an output signal having a plurality of enable periods and at least one disable period, an updating unit for updating a noise determination reference of a sensing signal provided from the photo sensor unit during the at least one disable period, and a noise remove for removing noise from the sensing signal is according to the updated noise determination reference during an enable period of the enable periods. | 05-26-2011 |
| 20110134056 | Flat panel display integrated with touch screen panel - A FPD integrated with a touch screen panel includes an upper substrate and a lower substrate facing each other, the upper substrate including a display region and first and second non-display regions surrounding the display region, a plurality of sensing patterns on the display region of the upper substrate, a plurality of sensing lines on the first non-display region of the upper substrate, a sealing material on the second non-display region of the upper substrate, the sealing material connecting the upper and lower substrates, and a flexible printed circuit (FPC) bonding pad unit on the second non-display region of the upper substrate, the FPC bonding pad unit including a plurality of bonding pads coupled to the plurality of sensing lines, the bonding pads including a transparent conductive material in regions overlapping the sealing material. | 06-09-2011 |
| Patent application number | Description | Published |
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| 20080211976 | ELECTRONIC IMAGING DEVICE AND DRIVING METHOD THEREFOR - An electronic imaging device includes a display unit and a barrier layer. The display unit includes scan lines for transferring select signals, data lines for transferring data signals corresponding to first and second images formed according to one or more input signals, and pixels connected with the scan and data lines. The barrier layer includes first barriers and second barriers corresponding to the first barriers. The first image is displayed during a first period of a unit period during which an image of a single frame is displayed. The second image is displayed during a second period different from the first period. The first barriers are driven according to the first image, the second barriers are driven according to the second image, and a region of the barrier layer corresponding to a mixed region in which the first and second images coexist is a non-transmission region. | 09-04-2008 |
| 20080218459 | ELECTRONIC DISPLAY DEVICE - An electronic display device having viewing-angle adjusting and stereoscopic-image displaying functions. The display device includes a display unit for displaying an image and a liquid crystal barrier disposed in front of the display unit. The barrier includes: first and second substrates facing each other; a liquid crystal layer disposed between the first and second substrates; and a first controller for controlling light transmission, the first controller being disposed at the first substrate facing the liquid crystal layer and including first electrodes spaced apart from each other by an interval along a first direction of the liquid crystal barrier, second electrodes arranged between the first electrodes along the first direction, and a third electrode insulated from the first and second electrodes; and a second controller for adjusting a viewing angle, the second controller being disposed at the second substrate facing the liquid crystal layer and including one or more electrodes. | 09-11-2008 |
| 20080252578 | 2D/3D LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - A 2D/3D image display device including a display unit with a plurality of gate lines, a plurality of data lines, and a plurality of pixels, the plurality of gate lines crossing the plurality of data lines, and the plurality of pixels being coupled to the plurality of gate lines and the plurality of data lines; and a controller for receiving an input signal and setting a first driving frequency or a second driving frequency according to the input signal. An image of one frame operating according to the second driving frequency receives and displays the same image data for each of a first period and a second period, a video signal transmitted to one of the plurality of pixels for the first period has first polarity, and a video signal transmitted to one of the plurality of pixels for the second period has second polarity. | 10-16-2008 |
| 20080259232 | Electronic display device - An electronic display device including a display unit for displaying an image and a light controller disposed in front of the display unit. The light controller includes a polarizing switch for controlling a polarizing direction using an electrical signal, and a pattern polarizer for controlling light transmission in cooperation with the polarizing switch. The polarizing switch has first and second common electrodes facing each other and a liquid crystal layer located between the first and second common electrodes. The pattern polarizer has a plurality of polarizing portions and a plurality of non-polarizing portions alternately arranged in a first direction. | 10-23-2008 |
| 20090002267 | ELECTRONIC DISPLAY - An electronic display includes a display unit for displaying both a two-dimensional image and a three-dimensional image, and a barrier facing the display unit to convert an image into the two-dimensional or three-dimensional image. The barrier includes first and second substrates facing each other, a plurality of first electrodes on the first substrate, an insulation layer on the first substrate and covering the first electrodes, a plurality of second electrodes on the insulation layer, and a liquid crystal layer disposed between the first and second substrates. The first electrodes are aligned with gaps between the second electrodes and the second electrodes are aligned with gaps between the first electrodes. Widths of the first electrodes may be equal to or greater than the gaps between the second electrodes. Widths of the second electrodes may be equal to or greater than the gaps between the first electrodes. | 01-01-2009 |
| 20090051835 | ELECTRONIC DISPLAY DEVICE - An electronic display device using a barrier includes a display unit displaying an image corresponding to a two dimension (2D) or a three dimension (3D), and a barrier facing the display unit and providing a 2D image or 3D image to a user. The barrier includes first and second substrates facing each other. First and second electrodes are alternately formed on the first substrate and having first gaps therebetween. A third electrode is formed on the second substrate. A dark colored layer is formed to correspond to the first gap. A liquid crystal layer is disposed between the first and second substrates. | 02-26-2009 |
| 20090102839 | ELECTRONIC DISPLAY DEVICE - An electronic display device includes a display unit including a plurality of scan lines, a plurality of data lines, and a plurality of pixels, and a barrier unit covering the display unit, including a plurality of first areas and a plurality of second areas alternately arranged along a length direction of the data lines, a first electrode group respectively provided in each of the first areas, each of the electrode groups including a plurality of first sub-electrodes and a plurality of second sub-electrodes alternately arranged along a length direction of the scan lines, a second electrode group provided in each of the second areas on a layer that is different from a layer on which the first electrode group is provided, each of the second electrode groups including a plurality of third sub-electrodes and a plurality of fourth sub-electrodes alternately arranged along the length direction of the scan line, and an insulation layer between the first and second electrode groups. | 04-23-2009 |
