Patent application number | Description | Published |
20090040169 | DRIVING MODULE FOR DRIVING LCD PANEL AND METHOD OF FORMING LCD DEVICE - The present invention discloses a driving module for driving an LCD panel and a method of forming an LCD device. The driving module includes: a source driving circuit, for driving the LCD panel; and a heat sink module, coupled to the source driving circuit and integrated with the LCD panel, for dissipating heat generated from the source driving circuit. The method of forming an LCD device including: utilizing a specific semiconductor process to form a LCD panel; and forming a heat sink module integrated with the LCD panel during the specific semiconductor process. | 02-12-2009 |
20090058773 | DISPLAY DRIVER AND RELATED DISPLAY - The present invention discloses a display driver and related display. The display driver includes: a plurality of level shifters, respectively receiving input signals for outputting shifted signals; a plurality of switches; and a digital-to-analog converter, having a plurality of input terminals electrically connected to outputs of the level shifters respectively via the switches directly; wherein the switches are turned off while the level shifters are in a transition to convert the input signals into the shifted signals. | 03-05-2009 |
20090066378 | SOURCE DRIVER AND METHOD FOR RESTRAINING NOISE THEREOF - The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a data bus, a plurality of channels, a multiplexer and a plurality of output pads. The channels are connected to the output pads via the multiplexer. Each channel has a latch unit. Data is transmitted on the data bus and stored in the latch units. The source driver is powered by a first supply voltage from the power supply. The method comprises determining whether the first supply voltage is insufficient, and if yes, performing the following steps. First, set the data transmitted on the data bus to be a predetermined value. Then, keep the latch units turned on, thereby the data is sent out from the latch units. Then, keep the multiplexer turned on for outputting a driving voltage based on the data via the output pads. | 03-12-2009 |
20090102691 | SOURCE DRIVER AND DIGITAL-TO-ANALOG CONVERTER THEREOF - A source driver and a digital-to-analog converter (DAC) thereof are provided. The DAC converts an input data into an analog voltage. The DAC includes a reference voltage generation unit, a switch unit, and a selection unit. The reference voltage generation unit provides a plurality of voltage levels. The switch unit is coupled to the reference voltage generation unit and determines whether to output the voltage levels, wherein the switch unit is turned off during a data conversion period of the input data. The selection unit is coupled to the reference voltage generation unit via the switch unit, and the selection unit selects one of the voltage levels output by the switch unit according to the input data, wherein the selected voltage level is served as the analog voltage output by the DAC. | 04-23-2009 |
20100182070 | OUTPUT BUFFER AND SOURCE DRIVER UTILIZING THE SAME - An output buffer including a first input stage circuit, a first output stage circuit, a second output stage circuit, a first switching module, and a second switching module is disclosed. The first output stage circuit is coupled to a first data line. The second output stage circuit is coupled to a second data line. The first switching module is coupled between the first input stage circuit and the first output stage circuit. The second switching module is coupled between the first input stage circuit and the second output stage circuit. | 07-22-2010 |
20100259465 | OUTPUT BUFFER, SOURCE DRIVER, AND DISPLAY DEVICE UTILIZING THE SAME - An output buffer providing a data signal to a data line and including an input stage circuit, an output stage circuit, and a control circuit is disclosed. The input stage circuit receives an input signal. The output stage circuit generates the data signal according to the input signal and includes a first P-type transistor. The control circuit selectively provides a first voltage or a second voltage to a bulk of the first P-type transistor. | 10-14-2010 |
Patent application number | Description | Published |
20080197880 | SOURCE DRIVER AND LEVEL SHIFTING METHOD THEREOF - The present invention provides a source driver comprising a shift register, a line buffer for storing a data signal and outputting a buffered data signal, and a level shifter for generating a level-shifted data signal based on the buffered data signal. The line buffer further comprises a charge pump supplying a pumped voltage based on a voltage source and a buffer powered by the pumped voltage and outputting a buffered data signal based on the data signal. | 08-21-2008 |
20090058194 | SOURCE DRIVER AND METHOD FOR RESTRAINING NOISE THEREOF - The present invention discloses a source driver and a method for restraining noise output by a source driver during power on/off of a power supply. The source driver includes a multiplexer, at least two channels and at least two output pads. The channels are connected to the output pads via the multiplexer. The source driver is powered by a first supply voltage from the power supply. The two output pads are connected via a charge sharing switch. The method comprises the following steps. First, determine whether the first supply voltage is insufficient, and if yes, perform the following steps. Turn off the charge sharing switch. Then, disconnect the channels from the output pads by the multiplexer. | 03-05-2009 |
20090153220 | SOURCE DRIVER AND POWER DOWN DETECTOR THEREOF - The present invention discloses a source driver powered by a power supply comprising at least one channel, at least one output pad coupled to the channel, at least one switch connected between the output pad and a predetermined voltage, and a power down detector for detecting whether a first supply voltage from the power supply is insufficient and generating a reset signal to turn on the switch if yes. | 06-18-2009 |