Abstract: A liquid crystal panel includes a plurality of display regions that correspond to the division images. The number of the division images can be set with consideration of the number of lamps covering the display regions. The average brightness of an entire image is compared with the average brightness of the division images so as to vary brightness of each division image according to a comparison result. Light that corresponds to the varied brightness is illuminated to each display region. Therefore, a dark division image is displayed darker and a bright division image is displayed brighter in the image of one frame, thereby enhancing a contrast ratio and reducing power consumption.

Abstract: A lamp driving apparatus of a liquid crystal display device includes m lamp groups in which a plurality of lamps generating light are disposed; n (n<m) inverter parts to generate an AC voltage for driving the lamps; an inverter controller to control the inverter parts; and a multiplexer to selectively supply the AC voltage generated at the n inverter parts to the n lamp groups among the m lamp groups. In each frame, a clock signal is divided into n divided signals. Different sets of lamp groups are driven during each of the divided signals.

Abstract: An apparatus and method for driving a light source of a liquid crystal display device are provided. The apparatus includes a liquid crystal display panel, a backlight unit including a plurality of light emitting diodes (LEDs) to irradiating light to the liquid crystal display panel, and a driver to selectively drive the LEDs and selectively control a brightness of light generated by the LEDs.

Abstract: A driving apparatus and method are presented to drive lamps that irradiate a liquid crystal display panel of a liquid crystal display device. A picture implementing period, during which a picture is implemented by the liquid crystal display device, and a shorter, scanning period before the picture implementing period are established. An output power supplied to the lamps to set a reference brightness is determined. A lamp driver changes a duty ratio and/or an amplitude of an AC signal supplied to the lamps to establish the reference brightness during the scanning period. The duty ratio/amplitude of the AC signal is adjusted dependent on the characteristics of the liquid crystal material in the liquid crystal display.

Abstract: A liquid crystal display includes inverters, a cover, a liquid crystal display panel, and a backlight. The inverters mechanically couple a cover which supports a liquid crystal display panel and a backlight. Each of the inverters is spaced apart from a substantial heat generating electrode region. The inverters are configured to supply power to the backlight. One method of assembling a liquid crystal display includes positioning the inverters; disposing a reflecting sheet below the inverters; electrically coupling the inverters to a light source; mechanically coupling the inverters to the cover; and disposing a plurality of electrodes above the inverters such that the inverters and portions of the electrodes do not lie in a common vertical plane.

Abstract: An apparatus and a method of driving a liquid crystal display device include receiving gamma-treated data, performing a reverse gamma correction of the data, the reverse-gamma-corrected data having a first linear characteristic, performing a signal processing of the reverse-gamma-corrected data having the first linear characteristic, performing a gamma correction of the processed data, and generating data signals based on the gamma-corrected data using analog voltage values, the data signals having a second linear characteristic.

Abstract: The liquid crystal display device includes a histogram analyzer analyzing a histogram of an input image and determining the input image as being in one of a low brightness mode, a normal mode, and a high brightness mode based on the histogram analysis, a back light controller controlling a maximum brightness of a back light unit based on the mode determination, and a data modulator enlarging the histogram of the input image to modulate data of the input image. The histogram analyzer detects a most frequent value of gray scale occurring most frequently in the input image of one frame, compares the most frequent value with a predetermined low reference gray value and a predetermined high reference gray value, and determines the input image as in one of the low brightness mode, the normal mode, and the high brightness mode based on the compared result.

Abstract: A method of driving a liquid crystal display device includes extracting brightness components of a portion of the first data for a current frame, arranging the brightness components for the current frame into a brightness histogram, retrieving brightness histograms for at least two frames prior to the current frame to generate an average histogram, generating second data for the current frame based on the average histogram, comparing the histogram for the current frame with the average histogram to determine whether an image at the current frame is a moving image or a still image, and driving the liquid crystal display device in accordance with one of the first data and the second data based on the comparison result.

Abstract: A driving system for a liquid crystal display includes an analog driving circuit unit, a digital analog converter and a digital interface unit. The digital analog converter supplies an analog voltage for operating the analog driving circuit unit. The digital interface unit supplies a digital signal to the digital analog converter. The analog driving circuit units, the digital analog converter and the digital interface unit may be mounted on a single chip.

Abstract: A method of driving a liquid crystal display including a color filter array having a plurality of red, green, blue and white color filters includes applying first driving signals to first liquid crystal cells during one frame interval, the first liquid crystal cells being overlapped by the red, green and blue color filters, respectively, applying a second driving signal to a second liquid crystal cell during a partial period of the one frame interval, the second liquid crystal cell being overlapped by the white color filter, and applying a third driving signal different from the second driving signal to the second liquid crystal cell during a remaining period of the one frame interval.

Abstract: A driving method and apparatus for a liquid crystal display for minimizing motion blur in a moving picture as well as displaying a fresh and dynamic image is disclosed. In the driving method, data inputted from the exterior are converted into brightness components to produce a histogram for each frame. A control value is extracted from various characteristics of the histogram. Turn-on times of a plurality of lamps positioned in such a manner to overlap with a liquid crystal display panel are controlled in correspondence with the control value.