摘要:
A liquid crystal display includes first and second opposing spaced insulating substrates, pixel electrodes formed on the first substrate, a common electrode formed on at least one of the first and second substrates, and a liquid crystal layer interposed there between the first substrate and the second substrate. In this structure, each pixel electrode is divided into a main-pixel electrode and a sub-pixel electrode, to which different signal voltages are individually applied at the same gray scale. Further, a signal voltage to be applied to the sub-pixel electrodes is determined by a gamma value satisfying the following equation: Gamma K=(current gray scale/maximum gray scale)f F(Gray Scale)=α×(maximum gray scale/current gray scale), wherein α is a constant.
摘要:
A liquid crystal display includes first and second opposing spaced insulating substrates, pixel electrodes formed on the first substrate, a common electrode formed on at least one of the first and second substrates, and a liquid crystal layer interposed there between the first substrate and the second substrate. In this structure, each pixel electrode is divided into a main-pixel electrode and a sub-pixel electrode, to which different signal voltages are individually applied at the same gray scale. Further, a signal voltage to be applied to the sub-pixel electrodes is determined by a gamma value satisfying the following equation: Gamma K=(current gray scale/maximum gray scale)f F(Gray Scale)=a×(maximum gray scale/current gray scale), wherein a is a constant.
摘要:
A liquid crystal display device includes a gate driving shift register having symmetrically split circuit portions by which each of plural gate lines is dually driven from both ends of the gate line during ripple-through scanning of rows of the LCD device. The LCD device includes a timing controller generating an output enable signal and a gate clock, where the timing controller adjusts a timing of a load signal for deciding a data output timing point when data will be loaded into a currently activated display row. The data output timing point is a function of a delay measuring feedback signal that is used to measure the cumulative delays of the sequentially connected stages of the shift register.
摘要:
A liquid crystal display device includes a gate driving shift register having symmetrically split circuit portions by which each of plural gate lines is dually driven from both ends of the gate line during ripple-through scanning of rows of the LCD device. The LCD device includes a timing controller generating an output enable signal and a gate clock, where the timing controller adjusts a timing of a load signal for deciding a data output timing point when data will be loaded into a currently activated display row. The data output timing point is a function of a delay measuring feedback signal that is used to measure the cumulative delays of the sequentially connected stages of the shift register.
摘要:
Disclosed are a signal control device and a liquid crystal display device having the same. The signal control device includes receivers and data storage units. The receivers receive clock signals and data signals through channels. The data storage units are provided according to channels and store the data signals transmitted through corresponding channels. In addition, the data storage units substantially simultaneously output the data signals in synchronization with a specific clock signal selected from the received clock signals received through the channels.
摘要:
Disclosed are a signal control device and a liquid crystal display device having the same. The signal control device includes receivers and data storage units. The receivers receive clock signals and data signals through channels. The data storage units are provided according to channels and store the data signals transmitted through corresponding channels. In addition, the data storage units substantially simultaneously output the data signals in synchronization with a specific clock signal selected from the received clock signals received through the channels.
摘要:
A timing controller includes a frame memory capable of storing previous frame data, a comparator structured to output a selection control signal in response to comparison of the previous frame data supplied from the frame memory with current frame data, an overdriver unit structured to output a compensation data signal in response to comparison of the previous frame data and the current frame data, a saturation voltage data supplying unit structured to generate a saturation voltage data signal in response to comparison of the previous frame data and the current frame data, and an outputting unit capable of selectively outputting either the compensation data signal or the saturation voltage data signal in response to the selection control signal.
摘要:
Driving apparatus for a display panel having a plurality of pixels includes a plurality of gate line sets connected to the pixels and transmitting a gate-on voltage to the pixels, a plurality of data lines connected to the pixels and transmitting a normal data voltage and an impulsive data voltage to the pixels, a signal controller for converting an input image data of a first gray to an output image data of a second gray and outputting the converted data, a data driver connected to the data line and applying the normal data voltage and the impulsive data voltage corresponding to the output image data to the data line, and a gate driver connected to the gate line and applying the gate-on voltage to the gate line according to a control of the signal controller. The normal data voltage is sequentially applied to a first gate line set among the plurality of gate line sets, and the impulsive data voltage is sequentially applied to a second gate line set among the plurality of gate line sets. The output image data of the second gray is determined in consideration of luminance display time of a pixel charged by the normal data voltage. Accordingly, luminance deterioration by different luminance display times for respective pixel rows connected to respective gate lines in the gate line set can be prevented.
摘要:
A driving apparatus for a display device includes a plurality of pixels arranged in a matrix, and each pixel includes first and second sub-pixels. The driving apparatus includes a memory for storing digital data, a controller for calling the digital data to output the digital data together with a clock signal and at least one selection signal, and a gray voltage generator formed of an integrated circuit to receive the digital data from the controller and to generate gray reference voltage sets. The gray voltage generator includes first and second registers for storing the digital data, a selector including a plurality of multiplexers for receiving the outputs of the first and second registers, and a converter including a plurality of digital-analog converters connected to the multiplexers. As described above, the gray voltage generator is provided in the form of a chip so that it is possible to reduce the area occupied on a printed circuit board (PCB) and to reduce the cost of the gray voltage generator.
摘要:
A LCD includes: a display panel and a signal controller. The display panel includes n pixels arranged in a matrix, wherein n is a natural number. The signal controller sequentially receives first through 2n-th pixel image signals, sequentially calculates a difference between a k-th pixel image signal and a (n+k)-th pixel image signal, recognizes the (n+k)-th pixel image signal as a motion signal when the difference is greater than a first reference value and recognizes the (n+k)-th pixel image signal as a non-motion signal when the difference is equal to or less than the first reference value, and determines whether the (n+k)-th pixel image signal is a moving-image signal based on numbers of motion signals and non-motion signals recognized. An image signal of a previous frame includes the first through n-th pixel image signals and an image signal of a current frame includes the (n+1)-th through 2n-th pixel image signals.