Patent application number | Description | Published |
20110115726 | TOUCH SENSING APPARATUS AND METHOD OF DRIVING THE SAME - A touch sensing apparatus includes; at least one light source which sequentially generates a plurality of lights, a light sensor which faces the at least one light source and outputs a plurality of signals corresponding to a magnitude of the plurality of lights, a light guide plate interposed between the at least one light source and the light sensor to guide the plurality of lights from the at least one light source to the light sensor and a coordinate generator which calculates coordinates of a touch input which occurs on the light guide plate using the signal output from the light sensor corresponding to the touch input. | 05-19-2011 |
20120223928 | METHOD FOR DRIVING ELECTROPHORESIS DISPLAY DEVICE - A method for driving an electrophoresis display device includes applying a reset voltage having a first polarity to electrophoresis material of the display device for at least one frame period to display a reset image, applying a first gradation voltage having a second polarity opposite to the first polarity to the electrophoresis material for one frame period to display a first grey image after the reset image is displayed, applying a second gradation voltage having the second polarity to the electrophoresis material corresponding to at least one pixel region of the display device for at least two frame periods to display a second grey image, after the first grey image is displayed; and applying a third gradation voltage having the first polarity to the electrophoresis material corresponding to at least one pixel region for one frame period to display a third grey image, after the second grey image is displayed. | 09-06-2012 |
20120274628 | 3-DIMENSIONAL DISPLAY DEVICE AND DATA PROCESSING METHOD THEREOF - Provided is a display device. The display device includes a timing controller, a data driving unit, a gate driving unit, and a display panel. The timing controller divides m-bit image data (m is a natural number) received from the outside into n different image data for each viewpoint (n is 2 or larger natural number), and generates an output frame composed of a plurality of 3-dimensional image data including the n image data for each viewpoint. Then, the output frame is dithered so that the image data for each viewpoint expresses m-bit gradation with 1 bit, and image data for each viewpoint included in the output frame are outputted as output image signals. | 11-01-2012 |
20120327079 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE-DIMENSIONAL IMAGE USING SAME - A display apparatus includes a display panel configured to include a plurality of pixels and display an image having a plurality of viewpoints in response to a data signal and a control signal, a converter, and a driver. The converter is configured to receive a first image signal and a first control signal, the first image signal including an image data and a depth data corresponding to the image data and a first control signal, the converter further configured to generate a converted depth data corresponding to a predetermined pixel on the basis of the first image signal, and output a second image signal having the viewpoints and a second control signal based on the image data and the converted depth data. The driver is configured to receive the second image signal and the second control signal and output the data signal and the control signal to the display panel. | 12-27-2012 |
20130076713 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a micro-shutter including first and second electrodes, a latch circuit including first and second input nodes, and first and second output nodes to receive an operation voltage and a common voltage, a capacitor including a first electrode and a second electrode applied with a shutter voltage, a first switching device applying a data signal to the first electrode of the capacitor in response to a gate signal, and a second switching device applying the voltage of the first electrode of the capacitor to the first input node of the latch circuit in response to an update voltage. | 03-28-2013 |
20130222713 | THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS - A three-dimensional image display apparatus includes a display panel which receives light and displays an image, a liquid crystal lens panel which refracts the light exiting from the display panel, a lens driver which drives the liquid crystal lens panel, a timing controller which controls the lens driver, a power supply unit which provides the liquid crystal lens panel with a driving voltage in response to a control of the timing controller, and a driver data value storage unit which stores a driver data value and applies the driver data value stored therein to the lens driver when the data driver storage unit is turned on, where the lens driver operates the liquid crystal lens panel using the driving voltage and the driver data value in response to the control of the timing controller. | 08-29-2013 |
20130278790 | IMAGE DISPLAY SYSTEM AND METHOD OF DRIVING THE SAME - An image display system includes a camera part and an image display part. The image display part includes a user analyzer, a gamma corrector, a gamma voltage generator, and a display panel. The camera part takes a picture of a user and generates a user image signal. The user analyzer calculates the user's viewing direction based on the user image signal. The gamma corrector generates a correction gamma value based on the viewing direction. The gamma voltage generator generates a gamma voltage based on the correction gamma value, and the display panel displays an image corresponding to the gamma voltage. Accordingly, the image display system provides the image having an optimized gamma curve to the user in real time even without a separate input from the user. | 10-24-2013 |
20140184653 | IMAGE PROCESSING DEVICE AND DISPLAY DEVICE HAVING THE SAME - An image processing device includes a first filter that filters the image signal to output a first image signal, a second filter that converts the image signal corresponding to a predetermined pixel to a second image signal based on image signals corresponding to a plurality of peripheral pixels adjacent to the predetermined pixel, a third filter that filters the second image signal from the second filter to output a third image signal, a fourth filter that filters the third image signal from the third filter to output a fourth image signal, and an image synthesizer that synthesizes the first image signal from the first filter and the fourth image signal from the fourth filter. | 07-03-2014 |
20160035306 | DISPLAY APPARATUS - A display apparatus includes a display panel configured to display an image, a data driver including a voltage generator configured to convert an image data applied thereto to a data voltage and a buffer configured to apply the data voltage to the display panel, a timing controller including a mode controller configured to generate a mode selection signal on the basis of an image frame rate of the image data. The data driver is configured to be operated in a power cut-off mode or a stand-by mode in response to the mode selection signal. The driving voltage switch is configured to cut off the analog driving voltage applied to at least one of the buffer and the voltage generator during the power cut-off mode and the bias controller is configured to reduce a bias current in the stand-by mode. | 02-04-2016 |
20160042695 | DISPLAY APPARATUS - A display apparatus includes a latch circuit configured to generate a second data value from a first data value, wherein the bit count of the second data value is greater than the bit count of the first data value, a digital-analog converter configured to convert the second data value into gray scale voltages, an output buffer unit configured to amplify the current level of the gray scale voltages to generate data voltages, a data switch circuit configured to invert the polarity of the data voltages every frame, and a display panel including a plurality of pixels driven with the data voltages supplied from the data switch circuit in response to sequential application of gate signals. | 02-11-2016 |
20160063962 | DISPLAY APPARATUS - A display apparatus includes: a timing control block which outputs image data based on external image data and control signals, and generates data and gate-side control signals based on the external control signal; a source drive block which converts the image data into a data voltage based on the data control signal; a low frequency detection block which detects a low power drive period based on the external control signal and generates a power control signal, a state of which is determined based on a result of the detection; an integrated chip which receives first and second drive voltages and includes a first switch block that turns off a circuit of the source drive block based on the power control signal during the low power drive period; a gate drive circuit which generates a gate signal based on a gate control signal from the integrated chip; and a display panel. | 03-03-2016 |