Patent application number | Description | Published |
20090079457 | CONNECTION TESTING APPARATUS AND METHOD AND CHIP USING THE SAME - A connection testing apparatus, a connection testing method, and a chip using the same are provided. The method can be used for testing connections between chips, so as to solve the problems that a conventional multi-chip connection test needs a plenty of test patterns, resulting in a long test time and a high test cost, and the condition of a connection failure is hard to be analyzed after a test failure. In the present invention, a voltage variation caused when an ESD element in a chip is conducted and a comparison circuits are used to determine whether a connection is correct. Furthermore, the test apparatus is built in the chip, so that the connection test may be accomplished quickly and efficiently. Once a connection failure occurs, the failed connection pin can also be found, so as to be favorable for engineering analysis and thereby effectively saving the test cost. | 03-26-2009 |
20090184908 | DISPLAY DRIVING METHOD AND APPARATUS USING THE SAME - The present invention discloses a display driving method and apparatus using the same. The driving method of driving a display panel having pixel cells formed at each intersection of a plurality of scan lines and a plurality of data lines, said method comprising: simultaneously driving the pixel cells corresponding to the nth to (n+m)th scan lines according to a plurality of first pixel signals corresponding to the nth scan line; and simultaneously driving the pixel cells corresponding to the (n+1)th to (n+m+1)th scan lines according to a plurality of second pixel signals corresponding to the (n+1)th scan line wherein n is a positive integer and m is a positive integer. | 07-23-2009 |
20090267877 | LIQUID CRYSTAL ON SILICON PANEL - The LCoS panel includes a display region, an odd and an even data drivers, and a data-line testing unit. The display region includes a plurality of pixel cells formed at each intersection of a plurality of scan lines and a plurality of data lines. The data lines include a plurality of odd data lines coupled to a plurality of first data channels of the odd data driver, and the data lines include a plurality of even data lines coupled to a plurality of second data channels of the even data driver. The odd and the even data drivers are arranged in a first side of the display region. The data-line testing unit is arranged in a second side of the display region opposite to the first side for selectively outputting a data-line testing signal corresponding to one of the data lines according to a data-line selecting signal. | 10-29-2009 |
20100001943 | HEATING SYSTEM FOR DISPLAY PANEL AND DISPLAY PANEL USING THE SAME - A heating system for a display panel is provided herein, wherein the display panel has a display area. The heating system includes a sensor, a temperature controlling device, and a heating element. The sensor is used for sensing the temperature of the display panel. The temperature controlling device provides a control signal according to the temperature of the display panel. The heating element heats the display panel according to the control signal, and the heating element is a patterned circuitry disposed on a peripheral region of the display area. | 01-07-2010 |
20100007591 | PIXEL UNIT FOR A DISPLAY DEVICE AND DRIVING METHOD THEREOF - A pixel unit and driving method thereof are disclosed. The pixel unit includes a switch, a storage element and a first multiplexer. The switch develops a charge transfer path according to a scan signal associated with a scan line. The storage element has a first electrode coupled to the switch and a second electrode coupled to a reference voltage for receiving a pixel voltage via the charge transfer path. The first multiplexer is coupled to the second electrode of the storage element for selectively providing the reference voltage with a default value and the reference voltage with a determined value to the second electrode of the storage element according to a modulating signal. The driving method enlarges the voltage range of the first electrode of the storage element for enhancing the contrast ratio of the display panel. | 01-14-2010 |
20100066767 | LCOS INTEGRATED CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A liquid crystal on silicon integrated circuit (LCOS IC) and electronic device using the same is provided. The electronic device comprises an LCOS IC, a processor and a cooler. The LCOS IC comprising a temperature sensor embedded in the LCOS IC for sensing a temperature and outputting a temperature sensing signal according to the temperature. The processor is coupled to the LCOS IC for receiving the temperature sensing signal and outputting a cooler control signal according to the temperature sensing signal. The cooler is coupled to the processor for receiving the cooler control signal and adjusting the cooler accordingly. | 03-18-2010 |
20100289734 | PIXEL CIRCUITRY OF DISPLAY DEVICE AND DISPLAY METHOD THEREOF - A pixel circuitry of a display device and a display method thereof are provided herein. The pixel circuitry includes a scan switch, a storage element, and a sampling circuitry. The scan switch has a first terminal coupled to a data line and configured to be asserted according to a scan signal. The storage element is coupled to a second terminal of the scan switch and configured to store a pixel voltage from the data line. The sampling circuitry is configured to sample the stored pixel voltage of the storage element and to obtain a reference voltage for the display device according to the sampled signal. By sampling the stored pixel voltage of the storage element, whether the pixel voltages with different polarities are symmetry can be detected for avoiding flickers. | 11-18-2010 |
20110089859 | CURRENT-TYPE DRIVER OF LIGHT EMITTING DEVICES - A current-type driver of light emitting devices is provided. The current-type driver includes a power conversion circuit, a feedback module, and a control module. The power conversion circuit modulates and generates an output voltage according to a feedback signal so as to sequentially drive a plurality of light emitting devices. The feedback module generates the feedback signal for the power conversion circuit according to the output voltage and an adjusting signal during a first period, wherein none of the light emitting devices is driven during the first period. The control module outputs the adjusting signal to the feedback module during the first period so as to allow the power conversion circuit to adjust the output voltage to a pre-drive voltage corresponding to the light emitting device which is to be driven next among the light emitting devices. | 04-21-2011 |
20120007901 | PIXEL CIRCUITRY OF DISPLAY DEVICE - A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage. | 01-12-2012 |
20140062992 | PIXEL CIRCUITRY OF DISPLAY DEVICE - A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage. | 03-06-2014 |