| Shanghai Tianma Micro-Electronics Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120091997 | DETECTING CIRCUIT FOR PIXEL ELECTRODE VOLTAGE OF FLAT PANEL DISPLAY DEVICE - A detecting circuit for pixel electrode voltage of a flat panel display device, the flat panel display device having a plurality of scanning lines and a plurality of data lines crossing with the plurality of scanning lines, the plurality of scanning lines and data lines define a plurality of pixel units, and each of the pixel units including a pixel switching element and a pixel electrode. The detecting circuit for pixel electrode voltage includes at least one detecting sub-circuit for pixel electrode voltage. The detecting sub-circuit for pixel electrode voltage includes: a signal amplifying unit connected with the pixel electrode in the pixel unit, for amplifying a voltage signal of the pixel electrode; and a signal detecting unit connected with the signal amplifying unit, for detecting the voltage signal of the pixel electrode that has been amplified by the signal amplifying unit, and outputting a variation in the voltage signal of the pixel electrode with time. Compared with the prior art, the present invention has advantages of simple detecting circuit structure and accurate detection result. | 04-19-2012 |
| 20120062482 | METHOD OF SCANNING TOUCH ON TOUCH SCREEN - The present invention discloses a method of scanning a touch on a touch screen, where drive lines and sense lines of the touch screen form a matrix network. The method includes: instructing the touch screen to enter into a standby mode if no touch has been detected for a time that reaches or exceeds a preset time in a working mode of the touch screen; in the standby mode, scanning A drive lines and sensing B sense lines, said A being an integer greater than or equal to 1 and less than M, and said B being an integer greater than or equal to 1 and less than or equal to N, where M is the total number of the drive lines and N is the total number of the sense lines; instructing the touch screen to enter into the working mode if there is a current fluctuation on the sense lines which are sensed in the standby mode; in the working mode, scanning all the drive lines and sensing all the sense lines. The touch screen is instructed to enter into the energy-saving standby mode if no touch has been detected by the time that reaches or exceeds the preset time, thus achieving the purpose of reducing the power consumption of the touch screen. | 03-15-2012 |
| 20110025675 | LIQUID CRYSTAL DISPLAY DEVICE WITH CONTROLLABLE VIEWING ANGLE AND DRIVING METHOD THEREOF - A liquid crystal display device with controllable viewing angle of the present invention has an upper substrate ( | 02-03-2011 |
| 20110025588 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 02-03-2011 |
| 20110018856 | OUTDOOR READABLE LIQUID CRYSTAL DISPLAY DEVICE - An outdoor readable liquid crystal display device ( | 01-27-2011 |
| 20100321368 | TRANSFLECTIVE LIQUID CRYSTAL DISPLAY DEVICE - A transreflective liquid crystal display device includes an upper substrate ( | 12-23-2010 |
