Abstract: Disclosed is an LCD device which facilitates to improve picture quality of two-dimensional (2D) and three-dimensional (3D) images by automatically converting an image driving mode (2D/3D) in accordance with a viewing distance, and a method for driving the same, wherein the device comprises a distance measuring unit which measures a viewing distance between the LCD device and a viewer; an image mode controller which sets a 2D image mode or 3D image mode in accordance with a comparison result between the viewing distance and a preset reference distance; a timing controller which aligns externally-provided image signals in accordance with the 2D image mode or 3D image mode set by the image mode controller, and converts the aligned image signals into image data by frame unit; and a liquid crystal panel which displays an image based on the 2D image mode or 3D image mode.

Abstract: An OLED display device includes a substrate; pixel regions defined by gate and data lines, each pixel region including red, green, first blue and second blue sub-pixels; a TFT in each pixel region; a first electrode connected to the thin film transistor; an insulating layer exposing the first electrode; hole injecting and hole transporting layers stacked on the first electrode; red, green and blue emitting layer on the hole transporting layer, the red and green emitting layers respectively being in the red and green sub-pixels, and the blue emitting layer being in the first and second blue sub-pixels; electron transporting and electron injecting layers stacked on the red, green and blue emitting layers; and a second electrode on the insulating layer and the electron injecting layer, wherein the first electrode in the second blue sub-pixel has a multi-layered structure of the first electrode layer and at least one metal layer.

Abstract: An LCD device and a driving method thereof are discussed. The LCD device can prevent a blended color within each block which is defined in an LCD panel. To this end, the LCD device divides an external image data into a plurality of block image data, generates first dimming signals opposite to red, green, and blue data with each block image data, and provides a second dimming signal opposite to a brightness data with each block image data. Also, the LCD device calculates a difference value between maximum and minimum grayscale values by analyzing histograms for the red, green, and compares the calculated difference value with a reference difference value. Furthermore, the LCD device allows one of the first and second dimming signals to be selected according to the dimming mode control signal.

Abstract: Disclosed is an LCD device which facilitates to improve picture quality of two-dimensional (2D) and three-dimensional (3D) images by automatically converting an image driving mode (2D/3D) in accordance with a viewing distance, and a method for driving the same, wherein the device comprises a distance measuring unit which measures a viewing distance between the LCD device and a viewer; an image mode controller which sets a 2D image mode or 3D image mode in accordance with a comparison result between the viewing distance and a preset reference distance; a timing controller which aligns externally-provided image signals in accordance with the 2D image mode or 3D image mode set by the image mode controller, and converts the aligned image signals into image data by frame unit; and a liquid crystal panel which displays an image based on the 2D image mode or 3D image mode.

Abstract: A liquid crystal display including a liquid crystal display panel having a liquid crystal cell at each intersection area of gate lines and data lines, a video processor generating processed data to implement a brightness level at a specific area of the liquid crystal display panel that is different from a remaining area of the liquid crystal display panel, and a position designator designating the specific area of the liquid crystal display panel where the processed data is implemented.

Abstract: An LCD device and a driving method thereof are discussed. The LCD device can prevent a blended color within each block which is defined in an LCD panel. To this end, the LCD device divides an external image data into a plurality of block image data, generates first dimming signals opposite to red, green, and blue data with each block image data, and provides a second dimming signal opposite to a brightness data with each block image data. Also, the LCD device calculates a difference value between maximum and minimum grayscale values by analyzing histograms for the red, green, and compares the calculated difference value with a reference difference value. Furthermore, the LCD device allows one of the first and second dimming signals to be selected according to the dimming mode control signal.

Abstract: An apparatus for driving a liquid crystal display (LCD) device includes a liquid crystal panel including 4-color sub-pixels, a data driver to provide video data signals to each sub-pixel, a gate driver to provide a scan pulse to each sub-pixel, a data conversion part to generate a gain value by analyzing a ratio of an achromatic color signal to a chromatic color signal of 3-color source data inputted from an external source and convert the 3-color source data into 4-color data using the generated gain value, and a timing controller to provide the 4-color data received from the data conversion part to the data driver and control the gate driver and the data driver.

Abstract: Disclosed are a backlight unit and a liquid crystal display (LCD) device having the same. The backlight unit comprises an optical source for emitting light, a diffusion sheet for diffusing the light incident thereon from the optical source, a first prism sheet for enhancing brightness of the light diffused by the diffusion sheet to be incident thereon by collecting the light to the front side, a second prism sheet for re-collecting the light collected by the first prism sheet to the front side by refraction, and a micro lens film for refracting the light incident thereon from the second prism sheet.

Abstract: A LCD device and a method for fabricating the same is disclosed that decreases the fabrication time of the LCD device by obtaining a white color in a fourth pixel region using first, second, and third auxiliary color filter layers, and improve the resolution for the white color by controlling the width of the auxiliary color filter layers. The device includes first and second substrates having first, second, third and fourth pixel regions arranged repetitively; a black matrix layer formed on the second substrate corresponding to portions of the substrates other than the pixel regions; first, second and third color filter layers respectively formed on the first, second, and third pixel regions of the second substrate; first, second, and third auxiliary color filter layers formed on the fourth pixel region of the second substrate to display a white color; and a liquid crystal layer formed between the first and second substrates.

Abstract: An IPS mode LCD device is disclosed in which a retardation layer is formed in a reflective part of unit pixel region to efficiently operate both transmitting and reflective modes and to improve the contrast ratio, the unit pixel region having a transmitting part and a reflective part, wherein a cell gap in the transmitting part is substantially the same as a cell gap in the reflecting part.

Abstract: An apparatus for driving a liquid crystal display, which is capable of controlling image brightness according to an Average Picture Level (APL) in a red-green-blue-white (RGBW) type display, and a driving method using the same is disclosed. The apparatus for driving a liquid crystal display device includes: a liquid crystal panel including 4-color sub-pixels; a data driver for providing video data signals to each sub-pixel; a gate driver for providing a scan pulse to each sub-pixel A data converter determines an Average Picture Level (APL) of 3-color source data, and generates a gain value corresponding to the average picture level. The 3-color source data is converted into 4-color data using the generated gain value; and a timing controller for communicates the 4-color data received through the data converter to the data driver.

Abstract: An LCD device and a method of manufacturing the same are provided. The LCD device according to an embodiment includes a black matrix having a plurality of open regions on a substrate; a color filter layer including a first color filter pattern, a second color filter pattern, and a third color filter pattern that are formed in the open regions; an overcoat layer formed on the color filter layer; a column spacer formed in a first region on the overcoat layer; and a fourth color filter pattern formed in a second region on the overcoat layer.

Abstract: A LCD device and a method for fabricating the same is disclosed that decreases the fabrication time of the LCD device by obtaining a white color in a fourth pixel region using first, second, and third auxiliary color filter layers, and improve the resolution for the white color by controlling the width of the auxiliary color filter layers. The device includes first and second substrates having first, second, third and fourth pixel regions arranged repetitively; a black matrix layer formed on the second substrate corresponding to portions of the substrates other than the pixel regions; first, second and third color filter layers respectively formed on the first, second, and third pixel regions of the second substrate; first, second, and third auxiliary color filter layers formed on the fourth pixel region of the second substrate to display a white color; and a liquid crystal layer formed between the first and second substrates.

Abstract: An in plane switching mode liquid crystal display device and its fabrication method are disclosed.

Abstract: A reflective liquid crystal display includes a linear polarizer for converting natural light into linearly polarized light; a retardation film for converting the linearly polarized light into circularly polarized light; a liquid crystal layer for varying the phase of the light differently depending on the presence or absence of an electric field; a cholesteric liquid crystal color filter for selectively reflecting light received from the liquid crystal layer; and a black background for absorbing light passing through the color filter.

Abstract: A LCD device and a method for fabricating the same is disclosed that decreases the fabrication time of the LCD device by obtaining a white color in a fourth pixel region using first, second, and third auxiliary color filter layers, and improve the resolution for the white color by controlling the width of the auxiliary color filter layers. The device includes first and second substrates having first, second, third and fourth pixel regions arranged repetitively; a black matrix layer formed on the second substrate corresponding to portions of the substrates other than the pixel regions; first, second and third color filter layers respectively formed on the first, second, and third pixel regions of the second substrate; first, second, and third auxiliary color filter layers formed on the fourth pixel region of the second substrate to display a white color; and a liquid crystal layer formed between the first and second substrates.

Abstract: A gamma reference voltage generating circuit in a liquid crystal display includes a first gamma power unit outputting a first gamma voltage for a reflective driving mode of the liquid crystal display, a second gamma power unit outputting a second gamma voltage for a transmissive driving mode of the liquid crystal display, and a switching unit selecting one of the first gamma voltage of the first gamma power unit and the second gamma voltage of the second gamma power unit, and outputting the selected gamma voltage to a source driving circuit.

Abstract: The present invention relates to a liquid crystal display panel of a horizontal electric field applying type capable of improving a viewing angle and a brightness. The liquid crystal display panel having an applied horizontal electric field includes a plurality of pixels, wherein each pixel includes sub-pixels of red, green, blue and white, and wherein a liquid crystal alignment direction of each sub-pixel is different between vertically adjacent sub-pixels.

Abstract: A backlight unit includes a light guide plate, at least two lamps arranged along a side of the light guide plate for irradiating light onto the light guide plate, and a plurality of lamp housings having different shapes for enclosing each of the lamps.

Abstract: An LCD method of fabricating an LCD includes first and second substrates each comprising a dummy region and an active region, a main sealant pattern arranged between the first and second substrates and at a periphery of the active region of the first and second substrates, dummy sealant pattern arranged between the first and second substrates within the dummy region of the first and second substrates, a first column spacer between the first and second substrates and within the dummy regions of the first and second substrates, and a liquid crystal layer arranged between the first and second substrates within the active regions of the first and second substrates.