| Patent application number | Description | Published |
|---|
| 20090051634 | Liquid Crystal Display - A liquid crystal display has a substrate, data lines, scan lines, pixel units and a pre-charge circuit. The data lines are disposed on the substrate in a first direction. The scan lines are disposed on the substrate in a second direction substantially perpendicular to the first direction. The pixel units are respectively disposed at the intersections of the data lines and the scan lines. The pre-charge circuit includes a pre-charge potential, a pre-charge capacitor and a pre-charge switch. The pre-charge capacitor has a first electrode coupled to the pre-charge potential. The pre-charge switch has a first terminal for receiving a pre-charge signal, a second terminal coupled to one of the data lines, and a third terminal coupled to a second electrode of the pre-charge capacitor. | 02-26-2009 |
| 20090129535 | SWITCH SET OF BI-DIRECTIONAL SHIFT REGISTER MODULE - A switch set used in a bi-directional shift register circuit includes a plurality of switch devices. Each switch device is controlled by corresponding control signals to switch the direction of the input signal. One of the switch devices includes a first switch unit for transmitting a shift register signal from a previous shift register to a shift register according to a first control signal, a second switch unit for transmitting a shift register signal from a next shift register to the shift register according to a second control signal. The first and the second control signals have the same frequency as the clock signal of the shift register circuit. | 05-21-2009 |
| 20090135991 | PRE-CHARGE CIRCUIT AND SHIFT REGISTER WITH THE SAME - A pre-charge circuit includes a receiving module, an enabling module, and a reset module. The receiving module receives the received driving signal of the pre-charge circuit and outputs the receiving driving signal according to a control signal. The enabling module outputs a pre-charge signal when receiving the driving signal. The reset module is electrically coupled between the receiving module and the enabling module for receiving a reset signal to reset the pre-charge signal. | 05-28-2009 |
| 20090237339 | LIQUID CRYSTAL DISPLAY DEVICE BASED ON DOT INVERSION OPERATION - An LCD device based on dot inversion operation is disclosed. The LCD device includes a plurality of data lines, a plurality of gate lines, a plurality of common lines, and a plurality of pixel units. Each pixel unit includes a data switch and a storage capacitor. The data switch of each pixel unit is coupled to a corresponding data line, a corresponding gate line, and the storage capacitor of same pixel unit. The storage capacitor of each pixel unit is also coupled to the storage capacitor of a corresponding pixel unit disposed diagonal to the pixel unit via a corresponding common line. The LCD device is capable of writing a plurality of low-voltage data signals having different polarities based on different common voltages into the plurality of pixel units so that the dot inversion operation can be operated with lower gray-scale voltage swing. | 09-24-2009 |
| 20090262884 | SWITCH SET OF BI-DIRECTIONAL SHIFT REGISTER MODULE - A switch set used in a bi-directional shift register circuit includes a plurality of switch devices. Each switch device is controlled by corresponding control signals to switch the direction of the input signal. One of the switch devices includes a first switch unit for transmitting a shift register signal from a previous shift register to a shift register according to a first control signal, a second switch unit for transmitting a shift register signal from a next shift register to the shift register according to a second control signal. The first and the second control signals have the same frequency as the clock signal of the shift register circuit. | 10-22-2009 |
| 20090267655 | ANALOG BUFFER WITH VOLTAGE COMPENSATION MECHANISM - An analog buffer having voltage compensation mechanism is disclosed for use in a source driving circuit of a liquid crystal display. The analog buffer includes a reference voltage generator, a plurality of capacitors, a plurality of switches, and a plurality of transistors. Each of the capacitors is utilized to store the gate-source voltage of the corresponding turn-on transistor for performing gate-source voltage compensation operation based on the reference voltages provided by the reference voltage generator. Each of the switches functions to control gate-source voltage compensation operation and is turned on/off in response to a corresponding control signal. The analog buffer is capable of compensating the gate-source voltages of turn-on transistors for generating an output voltage having an acceptable tiny offset with respect to an input voltage. | 10-29-2009 |
| 20090278776 | METHOD FOR DRIVING AN LCD DEVICE - A method for driving an LCD device having a plurality of sets of gate lines is disclosed. The method includes sequentially enabling odd gate lines of a first set of gate lines in ascending order for writing first-polarity data into corresponding pixels based on a first common voltage during a first interval, sequentially enabling even gate lines of the first set of gate lines in ascending order for writing second-polarity data into corresponding pixels based on a second common voltage during a second interval, sequentially enabling even gate lines of a second set of gate lines in descending order for writing second-polarity data into corresponding pixels based on the second common voltage during a third interval, and sequentially enabling odd gate lines of the second set of gate lines in descending order for writing first-polarity data into corresponding pixels based on the first common voltage during a fourth interval. | 11-12-2009 |
| 20090289878 | LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - An LCD device and driving method thereof are disclosed. The LCD device includes a source driver, a controller, a voltage generator, a plurality of data lines, a plurality of pixels, and a plurality of demultiplexer modules. The controller provides two sets of control signals. The voltage generator provides an AC common voltage. Each demultiplexer module includes two demultiplexers. The first demultiplexer distributes data signals received from the source driver into a set of data lines based on the first set of control signals. The second demultiplexer distributes data signals received from the source driver into another set of data lines based on the second set of control signals. The driving method is utilized for writing a plurality of low-voltage data signals having different polarities into a plurality of pixels based on different common voltages during different intervals of a frame period. | 11-26-2009 |
