Patent application number | Description | Published |
20130207961 | DRIVING DEVICE, DISPLAY DEVICE INCLUDING THE SAME AND DRIVING METHOD THEREOF - A driving device includes a synchronization unit which receives a plurality of input control signals and a plurality of input image signals during a frame through a plurality of channels, where the synchronization unit generates and outputs a synchronization control signal of the plurality of input image signals based on the plurality of input control signals, and a signal controller which receives the plurality of input control signals and the synchronization control signal from the synchronization unit. | 08-15-2013 |
20140022220 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture. | 01-23-2014 |
20140085276 | DISPLAY DRIVING METHOD AND INTEGRATED DRIVING APPRATUS THEREOF - A driving method of a display device includes: determining each of a plurality of pixel rows of the display device as one of a motion picture display pixel row and a still image display pixel row by comparing image data of each of the pixel rows in a current frame and in a previous frame; and driving the motion picture display pixel row with a motion picture frequency and driving the still image display pixel row with a still image display frequency, which is lower than or equal to the motion picture frequency, where a plurality of still image display pixel rows are driven with at least two still image display frequencies. | 03-27-2014 |
20140160182 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a data driver connected to the data line, a gate driver connected to the gate line, and a signal controller controlling the data driver and the gate driver, wherein a circuits powering power source voltage that is normally used for driving the data driver is selectively not applied during a new-image blanking time when the signal controller is not supplying image data to the data driver. | 06-12-2014 |
20140313113 | LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - The described technology relates to a liquid crystal display and a driving method thereof. The liquid crystal display includes a plurality of pixels arranged in a matrix form. The pixels include a liquid crystal capacitor including a pixel electrode and a common electrode as two terminals. A plurality of data lines transfer data to the plurality of pixels. The pixels include a first pixel and a second pixel, which are adjacent to each other. First and second common signals are applied to the common electrode of the first and second pixels, respectively. The second common signal is inverted to the first common signal. The first and second common signals swing between a first voltage and a second voltage. The polarity of the data voltage transferred by a data line with respect to the first common signal or the second common signal is constant during one frame. | 10-23-2014 |
20140375627 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device and driving method thereof are disclosed. In one aspect, the display device includes a display panel displaying a still image and a moving image and a signal control unit controlling signals for driving the display panel and controlling a frequency of the display panel based on a low frequency enable signal. The signal control unit controls the driving of the display panel at a low frequency when the still image is applied to the display panel and the driving of the display panel at a normal driving frequency after a first time elapses. The signal control unit further controls the driving of the display panel at a low frequency after a second time elapses. | 12-25-2014 |
20150179117 | METHOD OF DRIVING A DISPLAY PANEL, DISPLAY PANEL DRIVING APPARATUS FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE DISPLAY PANEL DRIVING APPARATUS - A method of driving a display panel includes detecting a position of a viewer to output a viewer position detection signal, determining whether the position of the viewer is in a first area or in a second area based on the viewer position detection signal to output a viewer position signal, and driving a unit pixel of the display panel using a plurality of gamma values according to the viewer position signal. The first area is less than a reference distance, and the second area is not less than the reference distance. Thus, side visibility of a display apparatus may be improved. | 06-25-2015 |
20150221273 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - A liquid crystal display device includes a plurality of pixels arranged substantially in a matrix form, where a part of the plurality of pixels defines a pixel column block, a first scan signal is simultaneously applied to an n-th row pixel and an (n+2)-th row pixel of the pixel column block, a second scan signal, which is applied prior to the first scan signal, is simultaneously applied to an (n+1)-th row pixel and an (n+3)-th row pixel of the pixel column block, a first data voltage is applied to the n-th row pixel and the (n+1)-th row pixel, a second data voltage having a polarity different from a polarity of the first data voltage is applied to the (n+2)-th row pixel and the (n+3)-th row pixel, and the polarities of the first data voltage and the second data voltage are inverted on a frame-by-frame basis. | 08-06-2015 |
Patent application number | Description | Published |
20080308852 | IMAGE SENSOR CIRCUITS INCLUDING SHARED FLOATING DIFFUSION REGIONS - An image sensor can include a plurality of photoelectric conversion elements arranged in a matrix. A plurality of floating diffusion regions can be shared by respective corresponding pairs of adjacent photoelectric conversion elements. A plurality of charge-transmission transistors can respectively correspond to the photoelectric conversion elements, where each of the charge-transmission transistors are connected between a corresponding one of the plurality of photoelectric conversion elements and a corresponding one of the plurality of floating diffusion regions. A plurality of charge-transmission lines can be commonly connected to gates of respective corresponding pairs of adjacent rows of charge-transmission transistors, where each of the respective corresponding pairs of adjacent rows of charge-transmission transistors can be connected to respective ones of the plurality of photoelectric conversion elements in different adjacent rows of floating diffusion regions. | 12-18-2008 |
20090166696 | CMOS Image Device with Local Impurity Region - According to a CMOS image device and a method of manufacturing same, dark current is decreased by a local impurity region. The image device includes a semiconductor substrate, and a transfer gate formed on a predetermined portion of the semiconductor substrate and electrically insulated from the semiconductor substrate. A photodiode is formed in the semiconductor substrate on one side of the transfer gate, and a floating diffusion region is formed on the semiconductor substrate in the other side of the transfer gate. A local impurity region of a first conductivity type is formed to be partially overlapped the transfer gate between the photodiode and the floating diffusion region. | 07-02-2009 |
20090201396 | Methods for operating image sensors - A method for operating image sensors is provided. The method for operating image sensors includes maintaining a charge transmission unit which transfers charges generated in a photoelectric conversion unit by responding to incident light to a charge detection unit in an inactive state; and toggling the charge transmission unit between an active state and an inactive state while a reset unit resets the charge detection unit, wherein the toggling is repeated multiple times while a reset unit which resets the charge detection unit is maintained in active state. | 08-13-2009 |
20090256061 | Image sensors with enhanced charge transmission characteristics - An image sensor includes photoelectric conversion elements formed adjacent to each other on a substrate. Two transmission elements transmit charge accumulated in two adjacent photoelectric conversion elements to a first floating diffusion region, and another two transmission elements transmit charge accumulated in the other two photoelectric conversion elements to a second floating diffusion region. The first floating diffusion region is electrically connected to the second floating diffusion region. A plurality of readout elements read out the charge transmitted to the first and the second floating diffusion regions. The image sensor also includes a dummy gate group including at least one dummy gate arrayed substantially parallel to a readout gate of the plurality of readout elements. | 10-15-2009 |