MC TECHNOLOGY CO., LTD. Patent applications |
Patent application number | Title | Published |
20120086681 | DRIVING APPARATUS AND DISPLAY DIVICE INCLUDING THE SAME - A liquid crystal display includes a plurality of driving apparatuses one-chipped by including a signal controller controlling a data driver in the data driver applying data voltage to the corresponding data line. Each of the plurality of driving apparatuses includes a first signal terminal and a second signal terminal. The first signal terminal outputs control data for controlling image display to an adjacent signal controller in a first direction for a first period and receives a mode detection signal for determining a final operation mode from the adjacent signal controller in the first direction for a second period after the first period. The second signal terminal outputs the mode detection signal to the adjacent signal controller in a second direction different from the first direction for the first period and receives the control data from the adjacent signal controller in the second direction for the second period. | 04-12-2012 |
20100231577 | OUTPUT VOLTAGE AMPLIFIER AND DRIVING DEVICE OF LIQUID CRYSTAL DISPLAY USING THE SAME - An output voltage amplifier, and a driving device of a liquid crystal display using the same are disclosed. The output voltage amplifier includes: an amplifying unit to generate first and second signals corresponding to a gray voltage input to a first input terminal and a feedback signal input to a second input terminal, and to output a first voltage by using first and second switches driven to be on or off according to the first and second signals; an output unit to apply the first and second data signals to the first and second pixels by using third and fourth switches turned on or off according to the first and second signals; and a feedback circuit unit to selectively supply one of the first voltage and the first and second data signals to the second input terminal. Heating characteristics and a slew rate can be improved. | 09-16-2010 |
20100134528 | LIQUID CRYSTAL DISPLAY, DRIVING APPARATUS, DIGITAL-ANALOG CONVERTER AND OUTPUT VOLTAGE A - The present invention relates to a liquid crystal display, a driving device thereof, a digital to analog converter, and an output voltage amplifying circuit. The present invention provides a liquid crystal display driving device including a reference gray voltage generator for generating a plurality of reference gray voltages, and a data driver for generating a plurality of gray voltages based on the plurality of reference gray voltages and applying a data signal that is generated by selecting a gray voltage corresponding to m-bit video signals applied from the outside from among the plurality of gray voltages to the pixel The data driver includes: a voltage generator for selecting a first gray voltage and a second gray voltage corresponding to bit values of (m−k) bits from among the video signal from among the plurality of gray voltages, and outputting the first and second gray voltages; an output voltage generator for outputting 2k voltages determined as one of the first and second gray voltages corresponding to bit values of k bits from among the video signal; and an output voltage amplifier for generating the data signal by combining the 2k voltages, and applying the data signal to a plurality of pixels. According to the present invention, a liquid crystal display having a small cost and area can be realized. | 06-03-2010 |
20100134462 | VOLTAGE AMPLIFIER AND DRIVING DEVICE OF DISPLAY DEVICE USING THE VOLTAGE AMPLIFIER - An amplifying circuit of a display device including a plurality of pixels includes an input unit, a bias unit, and an output unit. The input unit is coupled between a first power source for supplying a first voltage and a second power source for supplying a second voltage, receives a first input signal and a second input signal, and is controlled by the first and second input signals. The bias unit receives a bias voltage for operating the input unit, and includes a first node and a second node controllable by the input unit. The output unit applies an output voltage to a pixel by using a first output transistor turned on/off by a signal applied to the first node and a second output transistor turned on/off by a signal applied to the second node, and the first output transistor is a different type to the second output transistor. In this instance, the input unit includes a first input transistor having a first terminal coupled to a first power source and being turned on/off by a first input signal and a second input transistor of the same type as the first input transistor, having a first terminal coupled to the first power source, and being turned on/off by a second input signal. The bias unit includes a first transistor controllable by the on/off state of the first input transistor and a second transistor controllable by the on/off state of the second input transistor. | 06-03-2010 |