Patent application number | Description | Published |
20090278590 | POWER SEQUENCE CONTROL CIRCUIT, AND GATE DRIVER AND LCD PANEL HAVING THE SAME - A power sequence control circuit receives an input positive voltage and an input negative voltage. The control circuit includes a pull-up stage, having a first terminal receiving the input positive voltage, a second terminal coupled to a node, and a control terminal receiving feedback of an output positive voltage. A pull-down stage has a first terminal coupled to the node and a second terminal coupled to an output negative voltage. A current-limit switching unit has a first terminal receiving the input positive voltage, a second terminal outputting the output positive voltage, and a control terminal coupled to the node. When the output negative voltage decreases, and if the pull-down stage decreases a control voltage at the node and the control voltage is less than a threshold value, the current-limit switching unit is conducted to transmit the input positive voltage as the output positive voltage. | 11-12-2009 |
20100214255 | Energy-efficient Touch Panel Device and Related Method - An energy-efficient touch panel control device includes a touch panel, a buffer memory, an interrupt initiation unit, for outputting an interrupt signal, an analog to digital conversion unit, for converting analog output voltage to digital trace data and storing the digital trace data in the buffer memory, and according to a control signal, switching an operating mode, an operation unit, generating a detecting result according to the digital trace data, switching the operating mode according to the control signal, a mode control unit, for generating the control signal according to the interrupt signal, and a host interface unit. | 08-26-2010 |
20100253639 | METHOD OF DETECTING A TOUCH EVENT FOR A TOUCH PANEL AND RELATED DEVICE - A method of detecting a touch event for a touch panel which comprises a plurality of intersecting traces. The method includes outputting a charge control signal to a trace of the plurality of traces, and keeping other traces except for the trace floating and determining whether the touch event happens according to a voltage signal on the trace. | 10-07-2010 |
20110001491 | CAPACITANCE MEASUREMENT CIRCUIT AND METHOD - A capacitance measurement circuit and method are provided. A storage capacitor is pre-charged. Charge transfer is performed between an under-test capacitor and the storage capacitor. The storage capacitor is discharged and charged according to a relationship between a voltage of the storage capacitor and a reference voltage. The capacitance of the under-test capacitor is measured according to the voltage on the storage capacitor. | 01-06-2011 |
20110210955 | GATE DRIVER AND RELATED DRIVING METHOD FOR LIQUID CRYSTAL DISPLAY - The invention provides a gate driver for a liquid crystal display. The gate driver includes a first shift register for sequentially generating a plurality of first scan signals according to a synchronization start signal and a clock signal, an enable control unit for generating an enable signal according to the plurality of first scan signals, a second shift register for generating a plurality of second scan signals sequentially according to the synchronization start signal, the clock signal, and the enable signal, a level shifter for generating a plurality of first output signals and a plurality of second output signals, a logic processing unit for selectively perform logic on the plurality of first output signals and the plurality of second output signals to generate a plurality of gate driving signals, and an output stage for outputting the plurality of gate driving signals. | 09-01-2011 |
20110273192 | CAPACITANCE MEASUREMENT DEVICE FOR A TOUCH CONTROL DEVICE - A capacitance measurement device includes a charging control unit for charging a measured capacitor, a discharging control unit for discharging the measured capacitor, a first switch coupled to the measured capacitor and the charging control unit for controlling a connection between the measured capacitor and the charging control unit according to a first switching signal, a second switch coupled to the measured capacitor and the discharging control unit for controlling a connection between the measured capacitor and the discharging control unit according to a second switching signal, a first A/D converter coupled to the measured capacitor for converting a voltage signal on the measured capacitor into a first signal, and a duty cycle detecting circuit coupled to the measured capacitor for converting the voltage signal on the measured capacitor into a count value that represents the capacitance of the measured capacitor and outputting the count value to a processing unit. | 11-10-2011 |
20110273193 | TOUCH DETECTION METHOD AND RELATED TOUCH CONTROL DEVICE - A touch detection method for a touch control device including a touch panel includes examining whether a charging capacity for charging a measured capacitor of the touch panel and a discharging capacity for discharging the measured capacitor are determined; charging and discharging the measured capacitor by using the charging capacity and the discharging capacity when the charging capacity and the discharging capacity are determined and receiving a count value representing the capacitance of the measured capacitor, examining whether a base count value is set, calculating a difference between the count value and the base count value when the base count value is set, for determining whether the touch panel is touched, examining whether the count value is in a predetermined range, and performing a charging and discharging capacity setting process when the count value is out of the predetermined range, for adjusting the charging capacity and the discharging capacity. | 11-10-2011 |
20120105372 | Energy-efficient Touch Panel Device and Related Method - An energy-efficient touch panel control device includes a touch panel, a buffer memory, an analog to digital conversion unit, for converting analog output voltage to digital trace data and storing the digital trace data in the buffer memory, and according to a control signal, switching an operating mode, an operation unit, generating a detecting result according to the digital trace data, switching the operating mode according to an interrupt signal, and including a mode control unit, for generating the control signal according to the interrupt signal, and a host interface unit. | 05-03-2012 |
20140368223 | CAPACITANCE MEASUREMENT DEVICE AND ELECTRONIC DEVICE THEREOF - A capacitance measurement device for measuring the capacitance of a measured capacitor includes a charging control unit for charging the measured capacitor; a discharging control unit for discharging the measured capacitor; a voltage converting circuit coupled to the measured capacitor, for converting a voltage signal on the measured capacitor into a value that represents the capacitance of the measured capacitor; wherein in a first period, one of the charging control unit and the discharge control unit charges/discharges the measured capacitor and in a second period after the first period, the other one of the charging control unit and the discharge control unit discharges/charges the measured capacitor. | 12-18-2014 |
Patent application number | Description | Published |
20090038492 | Micro-Stamping Method for Photoelectric Process - This invention discloses a micro-stamping method for photoelectric process. First of all, in this invention, the micro-stamping method provides a stamp, an ink, an inkpad and a substrate, wherein the stamp or the inkpad having specific protruding bodies and the ink is one element of the group consisting of red ink, green ink and blue ink. Further, by adherence of the ink to the stamp, the specific pattern can be transferred to the surface of the substrate. Furthermore, this micro-stamping method comprises an ink adherence process, a positioning process, a pattern transferring process and a fixation process, and the above-mentioned processes will repeat until the three inks, such as red ink, green ink and blue ink, all adhered and fixed on the predetermined places of substrate. Moreover, this invention can be applied in the fabricating of color filters of TFT-LCD, emitting layers of OLED (Organic Light Emitting Diode), emitting layers of PLED (Polymer Light Emitting Diode) or other related photoelectric processes. | 02-12-2009 |