Abstract: Disclosed are a timing controller and an OLED display device using the same. The timing controller includes a reception unit, an image signal generation unit, and a control signal generation unit. The reception unit receives a plurality of video signals and a timing signal which are transferred from a system. The image signal generation unit realigns the video signals to generate a plurality of image signals. The control signal generation unit analyzes the video signals to determine whether a current input image is a static image or a moving image, and generates a plurality of control signals according to the determined result. When the current input image is determined as the static image, the control signal generation unit generates a plurality of control signals which allow a panel to be driven at a change frame driving frequency lower than a reference frame driving frequency necessary for driving the moving image.

Abstract: A gate driver, comprises a plurality of shift registers configured to output signals sequentially such that an Nth shift register is reset by an output signal of an (N+2)th shift register, wherein last, second last and third last shift registers are reset by a last output signal of the last shift register.

Abstract: A driving unit for a liquid crystal display device is provided. The driving unit includes a first group of driving stages and a second group of driving stages. A first driving stage of the first group receives a first gate start voltage. The first group of driving stages sequentially outputs scan signals according to a first clock signal. The scan signal outputted by one driving stage of the first group is sent to a next subsequent driving stage of the first group. A first driving stage of the second group receives a second start voltage. The second group of driving stages sequentially outputs the scan signals according to a second clock signal. The scan signal outputted by one driving stage of the second group is sent to a next subsequent driving stage of the second group. The driving stages of the first group and the second group alternately output the scan signals.

Abstract: A driving method of a liquid crystal display device includes steps of providing image data to a liquid crystal panel each frame, providing an image-data gate driving signal to the liquid crystal panel and inputting the image data to the liquid crystal panel, providing black data to the liquid crystal panel, providing a black-data gate driving signal to the liquid crystal panel and inputting the black data to the liquid crystal panel, and delaying the black-data gate driving signal when each frame starts.

Abstract: Disclosed are a timing controller and an OLED display device using the same. The timing controller includes a reception unit, an image signal generation unit, and a control signal generation unit. The reception unit receives a plurality of video signals and a timing signal which are transferred from a system. The image signal generation unit realigns the video signals to generate a plurality of image signals. The control signal generation unit analyzes the video signals to determine whether a current input image is a static image or a moving image, and generates a plurality of control signals according to the determined result. When the current input image is determined as the static image, the control signal generation unit generates a plurality of control signals which allow a panel to be driven at a change frame driving frequency lower than a reference frame driving frequency necessary for driving the moving image.

Abstract: A liquid crystal display (LCD) device partially or substantially blocks light from a light source from exciting a semiconductor layer. The LCD device includes a substrate, a semiconductor layer, a light-shielding layer, and a light source. The light source directs light toward a lower surface of the substrate. The light-shielding layer is formed between the substrate and the semiconductor layer. Some or all of the light directed towards the semiconductor layer by the light source is blocked by the light-shielding layer.

Abstract: A liquid crystal display (LCD) device partially or substantially blocks light from a light source from exciting a semiconductor layer. The LCD device includes a substrate, a semiconductor layer, a light-shielding layer, and a light source. The light source directs light toward a lower surface of the substrate. The light-shielding layer is formed between the substrate and the semiconductor layer. Some or all of the light directed towards the semiconductor layer by the light source is blocked by the light-shielding layer.

Abstract: A liquid crystal display device and a method of driving the same is disclosed, which can decrease the number of source drive integrated circuits ICs used to supply data, and can also decrease a flexible printed circuit and a printed circuit board to supply signals to the source drive integrated circuits ICs in size. The liquid crystal display device comprises a liquid crystal panel including a plurality of data lines formed along a long-axis direction of substrate, and a plurality of gate lines formed along a short-axis direction of substrate, wherein each gate line is orthogonal to each data line; a data driving circuit to supply data voltages to the data lines; a gate driving circuit to supply scan pulses to the gate lines; and a timing controller to supply digital video data to the data driving circuit, and to control the data driving circuit and the gate driving circuit.

Abstract: A liquid crystal display device is disclosed which includes first, second and third data lines arranged in one direction, a data driver for alternately supplying a data signal of a first polarity and a data signal of a second polarity to each of the first, second and third data lines during an interval of two horizontal periods, first and second gate lines arranged to cross the first to third data lines, a gate driver for sequentially driving the first and second gate lines, and first red, first green, first blue, second red, second green and second blue pixels located between the first gate line and the second gate line and arranged in order along the first and second gate lines. The first red pixel cell is connected to one side of the first data line and the second gate line. The first green pixel cell is connected to the other side of the first data line and the first gate line. The first blue pixel cell is connected to one side of the second data line and the first gate line.

Abstract: A liquid crystal display (LCD) device partially or substantially blocks light from a light source from exciting a semiconductor layer. The LCD device includes a substrate, a semiconductor layer, a light-shielding layer, and a light source. The light source directs light toward a lower surface of the substrate. The light-shielding layer is formed between the substrate and the semiconductor layer. Some or all of the light directed towards the semiconductor layer by the light source is blocked by the light-shielding layer.

Abstract: A liquid crystal display device and a method of driving the same is disclosed. The liquid crystal display device includes a liquid crystal panel including a liquid crystal panel including a plurality of first and second pixel cells supplied with data of the opposite polarities to display a picture, and a pre-charging unit to electrically connect a first one of the first pixel cells and a first one of the second pixel cells to each other just prior to a period of supplying the data to the first ones first and second pixel cells, and to electrically disconnect the first ones of the first and second pixel cells from each other for a period of supplying the data to the first and second pixel cells.

Abstract: A liquid crystal display device is disclosed which includes first, second and third data lines arranged in one direction, a data driver for alternately supplying a data signal of a first polarity and a data signal of a second polarity to each of the first, second and third data lines during an interval of two horizontal periods, first and second gate lines arranged to cross the first to third data lines, a gate driver for sequentially driving the first and second gate lines, and first red, first green, first blue, second red, second green and second blue pixels located between the first gate line and the second gate line and arranged in order along the first and second gate lines. The first red pixel cell is connected to one side of the first data line and the second gate line. The first green pixel cell is connected to the other side of the first data line and the first gate line. The first blue pixel cell is connected to one side of the second data line and the first gate line.

Abstract: A liquid crystal display device is disclosed which includes first, second and third data lines arranged in one direction, a data driver for alternately supplying a data signal of a first polarity and a data signal of a second polarity to each of the first, second and third data lines during an interval of two horizontal periods, first and second gate lines arranged to cross the first to third data lines, a gate driver for sequentially driving the first and second gate lines, and first red, first green, first blue, second red, second green and second blue pixels located between the first gate line and the second gate line and arranged in order along the first and second gate lines. The first red pixel cell is connected to one side of the first data line and the second gate line. The first green pixel cell is connected to the other side of the first data line and the first gate line. The first blue pixel cell is connected to one side of the second data line and the first gate line.

Abstract: A shift register for a gate driving circuit in a liquid crystal display device, the shift register including a plurality of stages, each stage including a control block connected to receive a first clock signal, a start pulse, and a high-level supply voltage to generate a first control signal and a second control signal, and an output block connected to receive a second clock signal, the first control signal, and the second control signal to generate an output voltage in response to the first and second control signals.

Abstract: A driving method of a liquid crystal display device includes steps of providing image data to a liquid crystal panel each frame, providing an image-data gate driving signal to the liquid crystal panel and inputting the image data to the liquid crystal panel, providing black data to the liquid crystal panel, providing a black-data gate driving signal to the liquid crystal panel and inputting the black data to the liquid crystal panel, and delaying the black-data gate driving signal when each frame starts.

Abstract: A shift register is disclosed, which can prevent a multi-output caused by a coupling phenomenon, the shift register comprising at least two clock transmission lines which transmit at least two clock pulses provided with the phase difference; and a plurality of stages which are supplied with the clock pulses from the clock transmission lines, and output output-signals in sequence, wherein each of the stages comprises a pull-up switching unit which is supplied with the first clock pulse, and outputs the first clock pulse as the output-signal according to a signal state of an enable node; and a noise eliminating unit which responds to the second clock pulse of which phase is prior to that of the first clock pulse supplied to the pull-up switching unit, and supplies a start pulse externally provided or the output-signal provided from the preceding stage to the enable node.

Abstract: A shift register includes first and second stages for sequentially outputting scan pulses to drive first and second gate lines. One of the first and second stages includes a pull-up switching device connected to an enabling node of the one of the first and second stages; a first pull-down switching device connected to a first disabling node of the one of the first and second stages; a second pull-down switching device connected to a second disabling node of the one of the first and second stages; and a node controller. The node controller of the first stage controls the logic state of each of the enabling node of the first stage, the first disabling node of the first stage and the first disabling node of the second stage. The node controller of the second stage controls the logic state of each of the enabling node of the second stage, the second disabling node of the second stage and the second disabling node of the first stage.

Abstract: A liquid crystal display device and a method of driving the same is disclosed. The liquid crystal display device includes a liquid crystal panel including a liquid crystal panel including a plurality of first and second pixel cells supplied with data of the opposite polarities to display a picture, and a pre-charging unit to electrically connect a first one of the first pixel cells and a first one of the second pixel cells to each other just prior to a period of supplying the data to the first ones first and second pixel cells, and to electrically disconnect the first ones of the first and second pixel cells from each other for a period of supplying the data to the first and second pixel cells.

Abstract: A liquid crystal display device and a method of driving the same is disclosed, which can decrease the number of source drive integrated circuits ICs used to supply data, and can also decrease a flexible printed circuit and a printed circuit board to supply signals to the source drive integrated circuits ICs in size.

Abstract: A liquid crystal display device is disclosed which includes first, second and third data lines arranged in one direction, a data driver for alternately supplying a data signal of a first polarity and a data signal of a second polarity to each of the first, second and third data lines during an interval of two horizontal periods, first and second gate lines arranged to cross the first to third data lines, a gate driver for sequentially driving the first and second gate lines, and first red, first green, first blue, second red, second green and second blue pixels located between the first gate line and the second gate line and arranged in order along the first and second gate lines. The first red pixel cell is connected to one side of the first data line and the second gate line. The first green pixel cell is connected to the other side of the first data line and the first gate line. The first blue pixel cell is connected to one side of the second data line and the first gate line.