Patent application number | Description | Published |
20080284704 | Liquid crystal display device and driving method thereof - A liquid crystal display (LCD) device and a method for driving the LCD device are disclosed. The LCD device includes a frame rate adjusting circuit for controlling a frame rate to be maintained at a 1-fold rate in frame periods other than an Nth frame period (“N” is a multiple of 8 or more), while being increased to an “i”-fold-accelerated rate (“i” is a positive integer of 2 or more) in the Nth frame period, to output reference timing signals in the frame periods other than the Nth frame period, and to output accelerated timing signals in the Nth frame period, a timing controller for generating data and gate timing control signals, based on at least one of each reference timing signal and each accelerated timing signal, and a logic circuit for accelerating a frequency of a polarity control signal in the Nth frame period. | 11-20-2008 |
20080291189 | Liquid crystal display device and driving method thereof - A liquid crystal display (LCD) device includes a liquid crystal display panel having a matrix of liquid crystal cells defined by crossings of the data lines and the gate lines. The LCD device includes a data driving circuit for inverting a polarity of a data voltage in response to a polarity control signal, and supplying the polarity-inverted data voltage to an associated one of the data lines in response to a source output enable signal; a gate driving circuit for sequentially supplying a scan voltage to each of the gate lines in response to a gate output enable signal; and a controller for modulating the polarity control signal such that data voltages having the same polarity are respectively supplied to liquid crystal cells along one gate line in consecutive frame periods and generating the source output enable signal and the gate output enable signal. | 11-27-2008 |
20080297457 | Liquid crystal display device and driving method thereof - A liquid crystal display (LCD) device and a driving method where the LCD device includes a data controller for interleaving one of black gray scale data and intermediate gray scale data into input digital video data to input digital video data in a specific period preceding a second one of two successive frame periods in which data voltages having the same polarity are successively supplied to liquid crystal cells. A timing signal controller generates a data timing signal and a gate timing signal, based on an input timing signal, and accelerates a frequency of the data timing signal and a frequency of the gate timing signal in the specific period. A data driving circuit is included for converting the interleaved digital video data into an analog voltage in response to the data timing signal, and supplying the analog voltage to data lines in the specific period. | 12-04-2008 |
20090146935 | Liquid crystal display - The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display panel according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines; a source drive IC that supplies data voltages to the data lines; a gate drive IC that supplies gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler with a first interface specification; an interface board that receives the data according to the first interface specification, and transmitting the data with a second interface specification; and a control board equipped with a timing controller receiving the data in the second interface specification and supplying the data to the source drive IC, and controlling the operating timing of the source drive IC and the gate drive IC; wherein a number of the data transmitting lines required in the second interface specification is less than a number of data transmitting line required in the first interface specification. | 06-11-2009 |
20090185365 | BACKLIGHT UNIT AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a backlight unit capable of determining a deviated degree of a lamp grip by a guide line formed adjacent to the lamp grip a PCB that connects an electrode thereof with a lamp electrode, and a manufacturing method for the same. The manufacturing method includes preparing a case structure, a plurality of lamps equipped with an electrode at both ends, and fastening units corresponded to the electrodes of the lamps, preparing a PCB constituted by a base substrate and a signal line formed on the base substrate, and defined with positions thereon for forming the fastening units having electric connection parts with respect to the signal line, and positioning the PCB in the case structure, forming a solder layer at the electric connection parts on the PCB by applying a soldering material using a solder mask, and forming a guide pattern at both sides of the fastening unit, connecting the fastening units with the solder layers while using the guide patterns as marks, and connecting the lamps to the fastening units. | 07-23-2009 |
20100073339 | System and method for correcting gamma - Disclosed is a system and method for correcting a gamma for shortening a gamma correction time period and improving gamma correction efficiency and reliability thereof, and simplifying a gamma correction device for reducing a production cost of image display devices. | 03-25-2010 |
20100073591 | Liquid crystal display module - A liquid crystal display module (LCDM) includes a liquid crystal panel; a backlight unit disposed under the liquid crystal panel and projecting light on the light crystal panel; a main frame surrounding a side of the backlight unit and a side of the liquid crystal panel; an integrated printed circuit board (PCB) connected to the liquid crystal panel and disposed at a side surface of the main frame, the integrated PCB including a data unit for providing a data driving signal to the liquid crystal panel, a signal generating unit for generating a data control signal, a gate control signal, and a power source signal and a timing control unit; a connector disposed on the integrated PCB and including a slot along the side surface of the main frame, the connector for receiving a signal from an external unit; a bottom frame under the backlight unit; a system board on a rear side of the bottom frame; a flexible cable connecting the connector and the system board; and a top frame covering edges of the liquid crystal panel and combined with the main frame and the bottom frame. | 03-25-2010 |
20100157196 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A backlight unit capable of preventing an initial driving malfunction is disclosed. The backlight unit includes a bottom cover opened upwardly, a reflective sheet disposed in the inner surface of the bottom cover; a plurality of lamps arranged at a fixed interval on the reflective sheet; an auxiliary light source disposed at the outer side surface of the bottom cover; and a light guide member, opposite to the emitting surface of the auxiliary light source, configured to guide light emitted from the auxiliary light source to the lamps through first and second penetration holes formed on one of the side walls of the bottom cover and the reflective sheet. | 06-24-2010 |
20100309236 | LIQUID CRYSTAL DISPLAY - An LCD has a drive power supply structure simplified to simplify manufacturing processes of LCDs and to reduce manufacturing costs thereof. The LCD includes a liquid crystal panel, a drive unit, a controller, a backlight drive unit, and a drive voltage generator. The liquid crystal panel includes image display regions. The drive unit drives gate and data lines in the panel. The controller controls the drive unit using image data and synchronization signals from outside. The drive voltage generator is provided on a system or at least one source printed circuit board on which at least one of the drive unit or the controller is formed and converts a voltage level of a drive power provided from outside to generate drive powers of different voltage levels and provides the drive powers to the drive unit, the controller, and the backlight drive unit. | 12-09-2010 |