Patent application number | Description | Published |
20080309840 | PIXEL ELEMENT AND LIQUID CRYSTAL DISPLAY - A pixel element and a liquid crystal display with discharge function are disclosed. In each of the pixel elements of the liquid crystal display, a transistor is disposed between the common electrode and the pixel electrode. The transistor will be turned on by a discharge signal sent from the master control unit of the liquid crystal display when the liquid crystal display is turned on or turned off, so as to provide the same common voltage to both the common electrode and the pixel electrode. Therefore, the positive and negative charges accumulated in the common electrode and the pixel electrode can be removed and the liquid crystal display is well protected. | 12-18-2008 |
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 |
20090102854 | DISPLAY METHOD AND COLOR SEQUENTIAL DISPLAY - A display method and a color sequential display using the same are provided. The color sequential display displays a frame in a frame period, wherein the frame includes a plurality of sub-frames, and the frame period includes a plurality of sub-frame periods. In the display method, a first sub-frame is displayed in response to a luminaire device during a first sub-frame period, and in simultaneous, a second sub-frame is addressed in the first sub-frame period. Next, the second sub-frame is displayed in response to the luminaire device during a second sub-frame period. In the display method, scales of the first sub-frame period and the second sub-frame period are determined according to the luminous efficiency of the luminaire device. Therefore, the optical performance of the color sequential display can be enhanced. | 04-23-2009 |
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 |
20090213303 | DISPLAY APPARATUS AND DISPLAY SUBSTRATE THEREOF - In a display apparatus, a light source is used for emitting light and a display panel is used for displaying images. The display panel includes a display area having a plurality of display pixels, a dark ring surrounding the display area and having a plurality of black pixels. Wherein adjacent two of the black pixels have an opening there-between, and a light sensing unit being integrated into the substrate and disposed beneath the opening of the two adjacent black pixels. | 08-27-2009 |
20090231503 | PIXEL DEVICE - A pixel device capable of composing a panel is provided herein. The pixel device includes a first switch, a first capacitor, and a second capacitor. The first switch delivers a pixel signal to a pixel electrode according to a control signal. The first capacitor has a first part of a first metal layer, a second metal layer, and a first dielectric coupled between the first part of the first metal layer and the second metal layer. The second capacitor has a first poly-silicon layer, an electrode layer, and a second dielectric coupled between the first poly-silicon layer and the electrode layer. The first and the second capacitors are parallel connected without increasing the area of the pixel and serve as a storage capacitor. Therefore, the pixel device can obtain more overall storage capacitance. | 09-17-2009 |
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 |
20090267885 | PIXEL CIRCUITRY AND DRIVING METHOD THEREOF - A pixel circuitry for a display apparatus and a driving method thereof are provided. The pixel circuitry includes a storage element, a scan switch, a first control circuit and a second control circuit. The scan switch delivers a pixel signal to the storage element in response to a scan signal during a frame period. The storage element having a first terminal and a second terminal is used for storing the pixel signal. The first control circuit selectively provides a reference voltage to one of the first and the second terminals of the storage element. The second control circuit selectively connects a pixel electrode to one of the first and the second terminals of the storage element. Under the control of the first and the second control circuits, the polarity of the pixel signal stored in the storage element can be changed by adjusting two terminal voltages of the storage element. | 10-29-2009 |
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 |
20100207863 | PIXEL CIRCUITRY FOR DISPLAY APPARATUS - A pixel circuitry for a display apparatus is provided herein. The pixel circuitry includes a first storage element, and a switching element composed of a plurality of switches. The first storage element has a first terminal receiving a pixel signal and a second terminal coupled to a first voltage. The first storage element is used for storing the pixel signal. The switching element includes a first switch and a second switch respectively conducted in response to a first signal and a second signal. Each of the first switch and the second switch has an input terminal coupled to a data line and an output terminal coupled to the first storage element. The cooperation of the first switch and the second switch has benefit of delivering the pixel signal without influence of body effect. | 08-19-2010 |
20100220085 | DISPLAY CONTROLLING SYSTEM AND METHOD THEREOF - A display controlling system, which includes: a memory module, for buffering a pixel data; a comparator, for comparing the pixel data and a counter signal to generate a comparing result signal; and a pixel, for refreshing according to the comparing result signal. | 09-02-2010 |
20100252720 | LIGHT SENSING CIRCUIT AND METHOD THEREOF - A light detecting circuit and a light detecting method thereof are provided. The light detecting circuit includes a first resistor, a light sensor, a current source, and a first current mirror. The light sensor generates a corresponding photocurrent according to the illumination while being illuminated by the high brightness light beam. By dividing the photocurrent corresponding to the low brightness light beam from the photocurrent through the current source, the light detecting circuit can mainly detects the high brightness light beam, so that the detecting accuracy can be enhanced. Accordingly, when being applied to detect the high brightness light beam, the light detecting circuit can provide a sensing voltage in a wide enough range and a large enough sense scale, so that the sensing voltage is easy to be distinguished by the rear stage. | 10-07-2010 |
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 |
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 |
20120062263 | TEST METHOD OF LIQUID CRYSTAL DISPLAY PANEL - A test method of a liquid crystal display panel is provided. The liquid crystal display panel includes a plurality of pixels and a testing pad. The pixels are disposed at intersections between a first, a second, and a third data lines and a plurality of scan lines. In the test method, each of the scan lines is driven to connect liquid crystal capacitors of the pixels to the first, the second, and the third data lines. A first and a second test voltages are respectively supplied to the first and the second data lines, wherein the first test voltage is not equal to the second test voltage. The first data line is floated. The floated first data line is measured through the testing pad to determine whether the liquid crystal capacitors of the pixels electrically connected to the first and the second data lines are electrically connected with each other. | 03-15-2012 |
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 |
20140124656 | LIGHT SENSING METHOD - A light detecting method is provided. The light detecting method includes following steps. A light beam is sensed to generate a photocurrent. A predetermined current is subtracted from the photocurrent. The photocurrent is converted to a voltage. | 05-08-2014 |