Patent application number | Description | Published |
20120249008 | DRIVING CIRCUIT FOR LCD BACKLIGHT SOURCE - A driving circuit for a LCD backlight source comprising a BOOST structure which comprises a capacitor C | 10-04-2012 |
20140125674 | Generating Method Of Gamma Value Test Chart Of Display Device And Measuring Method Of Gamma Value Thereof - The present disclosure provides a method for generating a test chart for Gamma value of a display device and a method for testing Gamma value thereof. The method includes: determining a grayscale corresponding to a generated test chart for Gamma value of the display device, and determining luminance of a standard picture area represented by the test chart for Gamma value of the display device; determining a grayscale voltage of a test picture area according to the grayscale corresponding to the standard picture area in the display panel, and determining the luminance of the test picture area displayed by the display panel under the grayscale voltage; comparing the luminance of the test picture area and the luminance of the standard picture area, and determining the Gamma value of the display device according to the result of the comparison. | 05-08-2014 |
20140184967 | METHOD FOR DRIVING LIQUID CRYSTAL PANEL, METHOD FOR TESTING FLICKER AND LIQUID CRYSTAL DISPLAY APPARATUS - A method for driving a liquid crystal panel, a method for testing flicker and a liquid crystal display apparatus are disclosed. They relate to the technical field of liquid crystal display. By changing the driving mode of polarity inversion, it is achieved that the flicker test is performed on the liquid crystal panel with the Z inversion array arrangement on basis of the flicker test pattern of 1+2H. In two adjacent columns of pixel units in the plurality of pixel units, one column common data line is connected with the pixel electrodes located at the opposed sides of the common data line alternatively through the thin film transistors. The method for driving the liquid crystal panel comprises: applying the data line driving signals with opposed polarities to the odd columns of data lines and the even columns of data lines within one frame of picture, wherein the polarities of the data line driving signals are inversed, each time two rows of the gate lines have been scanned, to form a specific polarity arrangement, the initial data line driving signals for two adjacent frames of pictures have opposed polarities. | 07-03-2014 |
20150154901 | DISPLAY DRIVING CIRCUIT AND DRIVING METHOD THEREOF, DISPLAY APPARATUS - The present disclosure relates to the display technique. Disclosed is a display driving circuit, including: a gate line driving circuit, configured to separate gate line driving signals of adjacent rows according to a first output enable signal; a shielding signal generation circuit, configured to trigger and generate a shielding signal when the gate line driving signal needs to be turned off; and a gate line shielding circuit configured to shield the first output enable signal according to the shielding signal so as to turn off the gate line driving signal, wherein the first output enable signal is inputted from a first inputting terminal of the gate line shielding circuit, the shielding signal is inputted from a second inputting terminal of the gate line shielding circuit, and an outputting terminal of the gate line shielding circuit is connected to the gate line driving circuit. The display driving circuit, a driving method thereof and a display apparatus according to the embodiments of the present disclosure are capable of shielding the first output enable signal directly according to the shielding signal so as to turn off the gate line driving signal and shield the data on the corresponding gate lines, thereby they can avoid occurring of abnormal statuses with the first output enable signal and also can save the cost and space of the circuit. | 06-04-2015 |
20150221269 | POLARITY INVERSION DRIVING METHOD, DRIVING APPARATUS AND LIQUID CRYSTAL DISPLAY DEVICE - A polarity inversion driving method, a driving apparatus and a liquid crystal display device, for attenuating the flickers due to POL inversion. The polarity inversion driving method is used for inversion of polarity of pixels on the liquid crystal panel, and comprises: generating a polarity inversion reference signal for reflecting selection of polarity of each row of pixels on the liquid crystal panel; generating a control signal comprising control levels generated in m frames, where m is an integer higher than or equal to two, wherein width of the control level in each of the m frames is gradually increased in chronological order to be equal to a time length of one frame; as an alternative, the width of the control level in each of the m frames is gradually decreased in chronological order from the time length of one frame to zero; and generating a polarity inversion signal from the polarity inversion reference signal and the control signal. | 08-06-2015 |
20150269898 | MAINTENANCE CIRCUIT FOR DISPLAY PANEL - A maintenance circuit for a display panel, the display panel being divided by a plurality of source driver integrated circuits into a plurality of partitions(X | 09-24-2015 |
20150287385 | APPARATUS AND METHOD FOR IMPROVING DISPLAY DEVICE AND UNEVEN DISPLAY BRIGHTNESS - The present invention relates to the field of display technology, and in particular to an apparatus and a method for improving uneven display brightness, and a display device. The apparatus for improving uneven display rightness includes: a division module configured to divide a display region into a plurality of segmented regions in a scanning line direction; a collection module configured to collect display brightness of the respective segmented regions; a comparison module configured to set reference brightness in a current grayscale according to the collected display brightness of the respective segmented regions; and an adjustment module configured to adjust the display brightness in the current grayscale of each segmented region according to the reference brightness in the current grayscale and the display brightness of each segmented region, so as to reduce the differences in the display brightness in the current grayscale among the respective segmented regions. | 10-08-2015 |
20150332639 | PIXEL STRUCTURE AND DRIVING METHOD THEREOF, DISPLAY PANEL AND DISPLAY DEVICE - A pixel structure and driving method thereof, a display panel and a display device. The pixel structure includes a plurality of sub-pixels arranged in a form of array, each sub-pixel is driven by a thin film transistor; wherein, sub-pixels provided in a same row are driven by two gate lines located thereon and thereunder; one data line serves to drive two columns of sub-pixels located on two sides of it; a plurality of sub-pixels in two adjacent rows that are driven by one data line constitute one pixel unit. For the pixel structure, there is further provided a driving method, and the pixel structure is easy to be driven and has a simple sequence control. | 11-19-2015 |