摘要:
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.
摘要:
A driving apparatus of a light emitting diode and a liquid crystal display are disclosed. The driving apparatus of a LED includes a plurality of LED groups in which LEDs are connected in series to each other; a plurality of constant voltage supply units that supplies a constant voltage required to drive a constant current to each of the plurality of LED groups and that outputs the constant voltage in which an output voltage is equal to or lower than an input voltage; and a pulse width modulation signal supply unit that supplies a pulse width modulation signal to each of the constant voltage supply units.
摘要:
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
摘要:
Deionized water from a deionized water source (21) for electrolysis is supplied by a pressurizing pump (20) to an electrolyzer (2) to obtain a hydrogen gas and ozone gas by means of electrolysis. The pressures of these gasses are maintained at not less than the atmospheric pressure. These gasses at a pressure of the atmospheric pressure or more are dissolved in high-purity water in gas dissolving units (6,7) to obtain ozone water and hydrogen water respectively. These ozone water and hydrogen water are introduced into mixer (8,9) to adjust pH respectively. In this way, highly-concentrated, gas dissolved cleaning solution is prepared in a short period of time.
摘要:
A liquid crystal display device includes a conversion portion processing a plurality of data signals to increase at least one of a plurality of gray levels of the plurality of n-bit data signals; a liquid crystal panel including a plurality of pixels supplied with the plurality of data signals processed; a light source supplying light to the liquid crystal panel; and a light source control portion adjusting a light luminance in inverse proportion to increasing the at least one of the plurality of gray levels.
摘要:
A local dimming driving method of the LCD device includes divisionally driving all of a plurality of blocks of a backlight unit using a maximum luminance signal and measuring luminance per block, setting one of the plurality of blocks as a reference block, detecting luminance deviations between the reference block and the residual blocks, and setting an offset value per block for compensating for the detected luminance deviations per block, analyzing an input image in units of blocks corresponding to the plurality of blocks of a backlight unit respectively, detecting a representative value per block, and determining a dimming value per block according to the representative value per block, correcting the dimming value per block using the offset value per block, and controlling the luminance of the backlight unit on a block-by-block basis using the corrected dimming value per block.
摘要:
A multi-panel display device and a method of driving the same, which can simplify a driving circuit for driving multiple flat panel display devices, thereby decreasing the fabrication cost, are disclosed. In the device configured of an alignment of multiple flat panel display devices for representing a single image, the device comprises multiple flat panel display devices, wherein each flat panel display device includes a display panel configured of a plurality of pixel regions, a data driver driving a plurality of data lines provided in the display panel, and a timing controller receiving image data and synchronization signals from an external source so as to divide the received image data, converting a signal frequency of at least one of the synchronization signals, and converting a size of the divided image data in accordance with the frequency-converted synchronization signal, thereby providing the size-converted divided image data to the data driver.
摘要:
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.
摘要:
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.
摘要:
A detachable liquid crystal display device includes a liquid crystal module and a cradle. The liquid crystal module includes a liquid crystal panel; an optical sheet provided on a rear surface of the liquid crystal panel; an interface disposed on a rear surface of the liquid crystal panel; a power receiver disposed on the rear surface of the liquid crystal panel; a memory card; and a timing controller for receiving second image data from external devices and permitting the first image data stored in the memory card to be displayed in the liquid crystal panel. The cradle includes a lamp emitting light; an inverter for supplying alternating current to the lamp; a connector for receiving third image data from external equipment; and an interface converter for applying the third image data to the interface of the liquid crystal module.