Abstract: A display apparatus includes a display panel which receives a light, a backlight which provides the light to the display panel in response to a driving voltage, and a backlight driver which applies the driving voltage to the backlight. The backlight is turned on and off during a communication period to transmit data to an external receiver using visible light communication during the communication period. The backlight driver controls a voltage level of the driving voltage according to a number of turn-on periods of the driving voltage during the communication period.

Abstract: A liquid crystal display (LCD) apparatus includes an LCD panel and light-emitting units. The light-emitting units generate lights in a corresponding light-emitting interval to illuminate a part of the LCD panel corresponding to the light-emitting units. A light-emitting ending point of the light-emitting interval is disposed between a first maximum light-transmitting time of a first region of the part of the LCD panel and a second maximum light-transmitting time of a second region of the part of the LCD panel, the first region corresponding to the first gate line of gate lines belonging to the part of the LCD panel illuminated by the light-emitting unit and the second region corresponding to the last gate line of the gate lines.

Abstract: A liquid crystal display (LCD) apparatus time-divides a frame into a plurality of fields, in which lights having a color different from each other, are generated. The LCD apparatus includes a backlight unit. The backlight unit includes n of light-generating units sequentially generating the lights in the fields. An initial light-generating time of an nth light-generating unit being delayed by a predetermined time gap relative to the (n?1)th light-generating unit so that each of the fields includes a first period, in which one of the lights is generated, and a second period, in which at least two of the lights are generated. The light-generating units generate a peak light having a peak intensity in the first period. Thus, the intensity of light or the time period for which the light is generated, is controlled so that color mixing is minimized and color purity is improved.

Abstract: A liquid crystal display is provided having improved image quality and visibility. The display device includes: a plurality of display panels which display multiple images from multiple display panels; a projection film which overlaps the display panels; and a lens panel including a first lens unit and a second lens unit is interposed between the display panel and the projection film. The first lens unit refracts images and the second lens unit improves image brightness. Therefore the resultant projection is a seamlessly connected image from the multiple display panels.

Abstract: A liquid crystal display (LCD) apparatus displaying a color image of a frame by dividing the frame into a plurality of periods in which different colors are displayed includes an LCD panel and light-emitting units. The light-emitting units are disposed under the LCD panel and generate lights having different colors in corresponding periods during a light-emitting interval. For example, the turn-on times of the light-emitting units are sequentially delayed as much as the voltage-transmittance response waveform of the liquid crystal is delayed from the first light-emitting unit to the last light-emitting unit. The light-emitting interval of a first region of the LCD panel ends shortly after its maximum value is reached corresponding to a first gate line of a light-emitting unit, and the light emitting interval of a second region corresponding to a last gate line of the light-emitting unit is delayed to maximize luminance.

Abstract: An LCD apparatus displays a color image of a frame divided into a plurality of periods in which different colors are displayed. The LCD apparatus includes an LCD panel and a number of light-emitting units. The LCD panel includes a plurality of gate lines and a plurality of data lines crossing the plurality of the gate lines. The light-emitting units generate different colors in each of the periods such that an outermost light-emitting unit emits light longer than a second outermost light-emitting unit thereby enhancing luminance uniformity.

Abstract: A liquid crystal display (LCD) apparatus time-divides a frame into a plurality of fields, in which lights having a color different from each other, are generated. The LCD apparatus includes a backlight unit. The backlight unit includes n of light-generating units sequentially generating the lights in the fields. An initial light-generating time of an nth light-generating unit being delayed by a predetermined time gap relative to the (n-1)th light-generating unit so that each of the fields includes a first period, in which one of the lights is generated, and a second period, in which at least two of the lights are generated. The light-generating units generate a peak light having a peak intensity in the first period. Thus, the intensity of light or the time period for which the light is generated, is controlled so that color mixing is minimized and color purity is improved.