Patent application number | Description | Published |
20090040163 | PROGRAMMABLE NONVOLATILE MEMORY EMBEDDED IN A GAMMA VOLTAGE SETTING IC FOR STORING LOOKUP TABLES - A gamma voltage setting IC in an LCD with an OTP memory—a one time programmable nonvolatile memory or an MTP or flash memory—a multiple time programmable nonvolatile memory embedded in for storing lookup tables of the voltages of gamma curves and the common voltage values is capable of outputting a corresponding voltage mode according to the sensed result of a temperature sensor or an ambient luminance sensor. The logic process of the OTP memory and the logic process of the gamma voltage setting IC are completely compatible, and the logic process of the MTP or flash memory only needs two or three photomask processes more than the logic process of the gamma voltage setting IC. | 02-12-2009 |
20090040167 | PROGRAMMABLE NONVOLATILE MEMORY EMBEDDED IN A TIMING CONTROLLER FOR STORING LOOKUP TABLES - A timing controller in an LCD has an OTP memory—a one time programmable nonvolatile memory or a MTP memory—a multiple time programmable nonvolatile memory embedded in for storing lookup tables of overdrive functions, dynamic contrast adjustments, independent RGB Gamma curve corrections, and data conversion of cyclic DAC functions. The logic process of the OTP memory and the logic process of the timing controller are completely compatible, and the logic process of the MTP memory only needs two or three photomask processes more than the logic process of the timing controller. | 02-12-2009 |
20090141051 | METHOD OF COMPENSATING FOR LUMINANCE OF AN ORGANIC LIGHT EMITTING DIODE DISPLAY - A method of compensating for luminance of an organic light emitting diode is provided. In an embodiment, an operational current of a dummy organic light emitting diode of a color is utilized to simulate the condition that a real pixel current attenuates with time, and a feedback current is outputted accordingly. A compensating voltage is generated according to the feedback current, and is used to regulates the data current inputted to the real pixel so as to compensate for the luminance of the real pixel of the color. | 06-04-2009 |
20100134020 | LED LIGHTING CONTROL INTEGRATED CIRCUIT HAVING EMBEDDED PROGRAMMABLE NONVOLATILE MEMORY - For providing a compact high-precision lighting control means to drive an LED lighting module, a lighting control integrated circuit is set forth to perform an accurate lighting control. At least one nonvolatile memory is embedded in the lighting control integrated circuit for storing a plurality of lookup tables. One lookup table provides related data for setting the driving currents of the LED lighting module based on spacing or pitch of LED disposition of the LED lighting module. Another lookup table provides related data to recover uniformity for different LED damage situations of the LED lighting module. The other lookup tables are applied to perform compensation processes on the driving currents concerning temperature variation, ambient light intensity, aging degradation, and power-on time. In addition, a signal processing unit, a pulse-width-modulation signal generating module, and a driving module are incorporated in the lighting control integrated circuit for signal processing and current driving. | 06-03-2010 |
20110069099 | CURRENT-DRIVEN OLED PANEL AND RELATED PIXEL STRUCTURE - A pixel structure includes a light-emitting device (LED); a first scan line; a data line; a first transistor having a gate coupled to the first scan line; and a current mirror electrically connected to the LED. The current mirror includes a second transistor having a gate connected to the data line and one of the source and the drain of the first transistor, and one of a source and a drain coupled to a first voltage source; and a third transistor having a gate coupled to the other of the source and the drain of the first transistor, one of a source and a drain coupled the first voltage source. The LED is coupled between the other of the source and the drain of the third transistor and a second voltage source whose voltage level is greater than a voltage level of the first voltage source. | 03-24-2011 |
20110235427 | Channel Hot Electron Injection Programming Method and Related Device - A nonvolatile memory device for reducing programming current and improving reliability comprises a memory cell array, a write circuit, and a verification circuit. The memory cell array comprises memory cells arranged at crossing points of a bit-line and word-line matrix of the memory cell array. The write circuit provides multiple variable pulses to each word-line for programming. The multiple variable pulses have predetermined amplitude for keeping gate injection current roughly maximum while lowering conduction current during programming operation. The verification circuit senses variation of the conduction current during the programming operation, and disables the programming operation if the sensed conduction current during the programming operation reaches a predetermined value. | 09-29-2011 |
20120087192 | Non-Volatile Memory Device with Program Current Clamp and Related Method - A method of programming a nonvolatile memory cell which comprises a select transistor and a memory transistor includes applying a preset limit current to a first input of the memory cell, applying a limit voltage to a current limiting circuit electrically connected to a second input of the memory cell, applying a limit voltage to stabilize a voltage drop of the memory cell, and applying a ramped gate voltage to the memory cell to program the memory cell with a preset limited current determined by the current limiting circuit. | 04-12-2012 |
20130044548 | FLASH MEMORY AND MEMORY CELL PROGRAMMING METHOD THEREOF - A flash memory and a memory cell programming method thereof are provided. The programming method includes the following steps. A preset programming voltage is applied to a memory cell to program the memory cell. A first verify voltage is applied to the memory cell to detect a programming result of the memory cell. A programming voltage applied on the memory cell is adjusted according to the programming result of the memory cell. | 02-21-2013 |
20130064027 | Memory and Method of Adjusting Operating Voltage thereof - By adjusting an operating voltage of a memory cell in a memory according to a measured capacitance result indicating capacitance of an under-test capacitor of the memory cell, an appropriate operating voltage for the memory cell can always be determined according to the measured capacitance result. The measured capacitance result indicates whether the capacitance of the under-test capacitor indicating the characteristic of the gate dielectric of the memory cell is higher or lower than a reference capacitor, and is generated by amplifying a difference between two voltages indicating capacitance of the reference capacitor and the capacitance of the under-test capacitor. | 03-14-2013 |
20130083598 | Method of Programming Nonvolatile Memory - Each memory cell of a plurality of memory cells of a memory has a well, source and drain regions, a storage layer, and a gate. The memory cells are in a matrix. Same column drain regions connect to the same bit line, same row gates connect to the same word line, and same column source regions connect to the same source line. The memory is programmed by applying a first voltage to a word line electrically connected to a memory cell of the plurality of memory cells, applying a second voltage different from the first voltage by at least a programming threshold to a bit line electrically connected to the memory cell, applying a third voltage different from the first voltage by at least the programming threshold to a source line electrically connected to the memory cell, and applying a substrate voltage to the plurality of memory cells. | 04-04-2013 |
20140016414 | FLASH MEMORY - The present invention provides a flash memory including a memory cell, a current limiter and a program voltage generator. The memory cell is programmed in response to a program current and a program voltage. The current limiter reflects amount of the program current by a data-line signal, e.g., a data-line voltage. The program voltage generator generates and controls the program voltage in response to the data-line voltage, such that the program current can track to a constant reference current. | 01-16-2014 |
20140073126 | METHOD OF MANUFACTURING NON-VOLATILE MEMORY - A method of manufacturing a non-volatile memory is provided. A substrate includes a memory cell region and a first periphery circuit region. The memory cell region includes a select transistor region. A first gate dielectric layer having a first thickness is formed on the substrate in the first periphery circuit region and the select transistor region. A portion of the first gate dielectric layer on the select transistor region is removed to form a second gate dielectric layer. The second dielectric layer has a second thickness, wherein the second thickness is less than the first thickness. | 03-13-2014 |
20140119125 | FLASH MEMORY - The present invention provides a flash memory including a memory cell, a current limiter and a program voltage generator. The memory cell is programmed in response to a program current and a program voltage. The current limiter reflects amount of the program current by a data-line signal, e.g., a data-line voltage. The program voltage generator generates and controls the program voltage in response to the data-line voltage, such that the program current can track to a constant reference current. | 05-01-2014 |