| Patent application number | Description | Published |
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| 20080198119 | LIQUID CRYSTAL DISPLAY AND DISPLAY PANEL WITH INTEGRATED DATA-STORAGE - A liquid crystal display includes a display panel having a data-storing unit including transistors integrated into the display panel. The data-storing transistors of the data-storing unit may be formed in the same film (layer) as the TFT pixel transistors on the display panel. Each of the plurality of transistors of the data-storing unit includes an input electrode connected to one of a first voltage or a second voltage depending upon a bit of stored data, and an output electrode commonly connected to a data output terminal of the data-storing unit. The data-storing unit further includes and a Serial-In, Parallel-Out shift register supplied with a reset and first and second clock signals and connected to the input electrodes of the transistors, respectively. | 08-21-2008 |
| 20080198319 | THIN FILM TRANSISTOR SUBSTRATE AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A liquid crystal display device with a display region and a non-display region surrounding the display region, the liquid crystal display device comprising: a first substrate; a second substrate which faces the first substrate; and a liquid crystal layer which is interposed between the first substrate and the second substrate, the first substrate comprising: a first insulating substrate; gate and data lines which are formed on the first insulating substrate and intersecting each other; a pixel thin film transistor formed on the display region and electrically connected to the gate and data lines; a pixel electrode electrically connected to the pixel thin film transistor; a gate driver formed on the non-display region and connected to the gate line to drive the gate line; and a direct current (DC)/DC converter formed on the non-display region and comprises a converter thin film transistor and a capacitance part; the capacitance part includes: a first capacitance part which comprises a first electrode, a first dielectric layer formed on the first electrode, and a second electrode formed on the first dielectric layer; and a second capacitance part which comprises the second electrode, a second dielectric layer formed on the second electrode, and a third electrode formed on the second dielectric layer. | 08-21-2008 |
| 20080211786 | DISPLAY DEVICE - A display device, includes: a touch panel which outputs a predetermined enable signal corresponding to an external pressure; a display panel which includes a light detector responding to external light and generating a predetermined electrical signal representing the position of the light; and a panel driver which forms an image corresponding to the electrical signal on the display panel if the enable signal is input. | 09-04-2008 |
| 20090152441 | LIGHT SENSOR TEST UNIT, METHOD OF TESTING LIGHT SENSOR USING THE SAME AND DISPLAY APPARATUS - In a light sensor test unit, a test circuit is built in a display panel and connected to an output node of a light sensor which senses an intensity of an external light. When external light having a predetermined intensity is provided to the light sensor, the test circuit outputs a driving signal in response to a sensing signal output from the output node. A test pixel part includes pixels selected from a plurality of pixels arranged in the display panel and receives the driving signal from the test circuit to display a gray-scale corresponding to the driving signal. A brightness measurer measures a brightness corresponding to the gray-scale displayed in the test pixel part to compare the measured brightness with a predetermined brightness, thereby testing whether the light sensor built in the display panel is normally operated. | 06-18-2009 |
| 20090303172 | ANALOG-TO-DIGITAL CONVERTER, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD OF THE SAME - An analog-to-digital (“A/D”) converter includes; a photocurrent integrator which integrates photocurrent and stores the integrated photocurrent in a feedback capacitor in the form of voltage, and a discharger which attenuates the voltage out from the photocurrent integrator in the form of an exponential function. | 12-10-2009 |
| 20100149200 | DISPLAY, APPARATUS AND METHOD FOR DRIVING DISPLAY - An apparatus for driving a display panel includes a first memory which stores a frame image data, a second memory which stores overshooting information. The apparatus receives an image signal from an external system via a CPU interface process. The second memory stores a difference data between the frame image data and an overshooting data. The overshoot is then calculated from the difference data and the frame image data. The apparatus also includes a two-line memory which stores an image signal of an n-th frame in a line unit and an image signal of an n−1-th frame in another line. The two-line memory compares the consecutive two frame data, so that the apparatus extracts overshooting information from a look up table. | 06-17-2010 |
| 20100156864 | DRIVING DEVICE FOR DISPLAY AND DISPLAY USING THE SAME AND DRIVING METHOD OF THE DISPLAY - A driving device for a display and a display using same, and a driving method of the display are provided. The display includes a display panel on which an image is displayed, and at least one optical sensor (photodetector) to detect the intensity of ambient (external) light incident upon the display panel. An external-brightness detector outputs an external-brightness signal based on the intensity of external (ambient) light and a backlight brightness controller changes the brightness of the image displayed (or backlight) on the display panel according to the external-brightness signal. The driving device may be implemented on an integrated circuit adapted to be connected to external-light photodetectors of type 1 or of type 2. The driving device may be may be dynamically configured to generate the external-brightness signal by sensing a voltage level of the light detecting node in a first mode of operation and may be reconfigured to generate the external-brightness signal by sensing a current level of the light detecting node in a second mode. | 06-24-2010 |
| 20100188434 | Method of Driving a Light Source, Apparatus for Performing the Method and Display Apparatus Having the Apparatus - A light source apparatus includes a light source module, a luminance determiner, an illuminance sensor and a light source driver. The light source module provides a display panel with light. The luminance determiner obtains luminance data of first image data including at least white image data that is converted from image data of a red color, a green color and a blue color. The illuminance sensor obtains sensing data based upon an external illuminance. The light source driver drives the light source module based upon the luminance data and the sensing data. | 07-29-2010 |
| 20110012878 | LIGHT SENSOR TEST UNIT, METHOD OF TESTING LIGHT SENSOR USING THE SAME AND DISPLAY APPARATUS - In a light sensor test unit, a test circuit is built in a display panel and connected to an output node of a light sensor which senses an intensity of an external light. When external light having a predetermined intensity is provided to the light sensor, the test circuit outputs a driving signal in response to a sensing signal output from the output node. A test pixel part includes pixels selected from a plurality of pixels arranged in the display panel and receives the driving signal from the test circuit to display a gray-scale corresponding to the driving signal. A brightness measurer measures a brightness corresponding to the gray-scale displayed in the test pixel part to compare the measured brightness with a predetermined brightness, thereby testing whether the light sensor built in the display panel is normally operated. | 01-20-2011 |
| 20110013113 | TFT AND TFT SUBSTRATE USING THE SAME, METHOD OF FABRICATING TFT SUBSTRATE AND LIQUID CRYSTAL DISPLAY - There are provided a TFT, a TFT substrate using the TFT, a method of fabricating the TFT substrate, and an LCD. The TFT includes a source region, a drain region, and a gate electrode having an opening. The opening of the gate electrode is to enhance the light sensing ability of the TFT when it is used as a light sensor, since light is incident into a region where the opening is formed. The TFT including the gate having the opening can be used in a substrate of a flat display or an LCD using such a substrate. The above TFT can sense light incident from outside the display to adjust the brightness of the screen according to the external illumination. | 01-20-2011 |
