Abstract: The present invention relates to an integrated circuit (IC) for SRAM (Static Random Access Memory) standby power reduction in LCD (Liquid Crystal Display) driver. The IC layout mainly disposes a high-current endurable transistor between a power supply pad and a power supply metal layer of the SRAM matrix. When the IC enters a standby mode, the electrical interconnection between the power supply pad and the power supply metal layer of the SRAM is cut off through the transistor so that the leakage current and the power consumption of the SRAM can be reduced.

Abstract: A system for enhancing image sharpness includes a minimum unit, a maximum unit, a subtraction unit, a local mean unit, a sharpness calculation unit and a sharpness processing unit. The minimum unit receives pixels in a local area of an image to output a minimum luma value. The maximum unit receives the pixels in the local area of the image to output a maximum luma value. The subtraction unit subtracts the minimum luma value from the maximum luma value to generate a difference value. The local mean unit calculates an average of the luma values in the local area to generate a local mean value. The sharpness calculation unit calculates a sharpness factor for a pixel based on the difference value and an adjustable coefficient. The sharpness processing unit performs a sharpness processing on the pixel according to the sharpness factor and the local mean value.

Abstract: The present invention relates to a method for frame memory access and a display driver using the same. The method is a data moving method for allowing a display driver integrated circuit built in a portrait style frame memory to be used in a landscape mode. The spirit of the method is to repeatedly read data from the portrait style frame memory to the shift register, and move the data on the shift register to put the data to the correct data latch to constitute complete scan line data. Therefore, the portrait style display driver integrated circuit may drive a landscape mode display panel.

Abstract: A gate driver and a display device are disclosed. The gate driver includes an image data receiving interface, an image processing unit, a timing controller, and a gate driving unit. The image data receiving interface receives an input signal and transfers the same to a display image signal and a display control signal. The image processing unit receives the display image signal and transfers the same to a display data. The timing controller transfers the display control signal into a first and second control signals. The first control signal and the display data are output to a source driver. The gate driving unit receives the second control signal to drive gate scanning lines accordingly, and the gate driving unit sequentially drives the gate scanning lines according to the second control signal. The source driver supplies the display data to pixels according to the first control signal.

Abstract: An apparatus compensates image in a backlight local dimming system for estimating pixels of the image after backlight spreading of a plurality of backlight sources in the backlight local dimming system. The apparatus includes a block dimming value decision unit, a quality/power-saving priority decision unit, a temporal filter, a backlight spread approximation unit, and an image compensation unit. The block dimming value decision unit calculates an average value, a maximum value and a initial value for each image block. The quality/power-saving priority decision unit generates a backlight control signal based on the average value, the initial value, and two thresholds. The temporal filter adaptively generates a backlight pulse width modulation signal based on the backlight control signal. The backlight spread approximation unit generates a backlight spread image based on the backlight pulse width modulation signal. The image compensation unit compensates the image based on the backlight spread image.

Abstract: An apparatus of approximating backlight spread is used in a display to estimate a backlight spread image corresponding to an image after backlight spreading of a plurality of backlight sources arranged in a matrix form. An equalizer receives backlight pulse width modulation signals of the backlight sources for performing an equalization operation and generating corresponding equalization signals. A backlight seed image constructor receives the equalization signals to establish a backlight seed image. A first calculation unit calculates positions corresponding to the backlight seed image based on a backlight spread image. A second calculation unit calculates coordinates of the backlight seed image corresponding to the positions. A distance calculator calculates distance differences between the positions and coordinates of the backlight seed image.

Abstract: An alignment mark with a sheet or a layer of copper, which is compatible with a copper process, is provided herein. In one embodiment, a whole sheet of copper (Cu) is used as a background of the alignment mark, by which the color of the background of the alignment mark is stable and reliable. By such arrangement, the contrast between colors of a main pattern and the background of the alignment mark can be significantly improved, without considering a problem the homogeneity of manufacturing process. If the alignment mark is applied for manufacturing of a display, a recognition successful rate of alignment to attach an integrated circuit (IC) to a panel of the display is increased.

Abstract: The invention relates to a programming method for a display driver, and the display driver and a display using the same. The programming method includes: providing programming data; providing a display buffer, which is used for pre-storing display data in a display period, in the display driver; providing a non-volatile memory, which is coupled to the display buffer through a data bus; and proceeding a programming procedure, which includes the steps of: inputting the programming data to the display buffer; and programming the programming data from the display buffer to the non-volatile memory through the data bus.

Abstract: Level shifter and related apparatus are provided. The level shifter has first to sixth transistors, wherein drains of the first and the second transistors respectively are coupled to drains of the fifth and the sixth transistors as two output nodes of the level shifter, gates of the fifth and the sixth transistors are two input nodes of the level shifter. A source, a drain and a gate of the third transistor are respectively coupled to a gate of the first transistor, the drain of the sixth transistor and a first bias voltage, and a source, a drain and a gate of the fourth transistor are respectively coupled to a gate of the second transistor, the drain of the fifth transistor and a second bias voltage.

Abstract: A wide range level shift system receives an input signal with a first voltage level and a second voltage level. The wide range level shift system transforms the input signal to an output signal with a third voltage level and a fourth voltage level, wherein the first voltage level is smaller than the second voltage level, the second voltage level is smaller than the third voltage level, and the fourth voltage level is smaller than the first voltage level. The wide range level shift system has six transistors for reducing the number of transistors required, the layout area of the transistors, and the power consumption.

Abstract: An SRAM compatible embedded DRAM system with hidden refresh and dual port capabilities includes a memory cell array comprised of a plurality of single-port memory cells with dual-port capability, a first and a second port access units connected to the memory cell array in order to access the memory cells, and an access arbiter connected to the first and the second port access units in order to arbitrate a first port access request, a second port access request and a hidden refresh request.

Abstract: An embodiment of the invention discloses an display module for mobile communication device which comprises a display panel, a flexible printed circuit board, an electronic component. The flexible printed circuit board is coupled to the display panel and is divided into a first portion and a second portion. The electronic component is disposed on a first surface of the flexible printed circuit board, and the location of the electronic component corresponds to that of the second portion of the flexible printed circuit board. The extensibility of the second portion of the flexible printed circuit board is smaller than that of the first portion of the flexible printed circuit board.

Abstract: In a demodulation system for a low-power differential-sensing capacitive touch panel, the capacitive touch panel has n first conductor lines in a first direction and m second conductor lines in a second direction, and a mutual capacitance is generated at each intersection of the n first conductor lines and the m second conductor lines. The demodulation system has a signal generator, a detection circuit, a programmable gain amplifier, an analog to digital converter. During a driving cycle, the signal generator generates a pair of differential driving signals to drive two of the first conductor lines in the first direction for eliminating common noises of the two first conductor lines and avoiding the common noises from being amplified by the programmable gain amplifier.

Abstract: A system for enhancing image sharpness includes a minimum unit, a maximum unit, a subtraction unit, a local mean unit, a sharpness calculation unit and a sharpness processing unit. The minimum unit receives pixels in a local area of an image to output a minimum luma value. The maximum unit receives the pixels in the local area of the image to output a maximum luma value. The subtraction unit subtracts the minimum luma value from the maximum luma value to generate a difference value. The local mean unit calculates an average of the luma values in the local area to generate a local mean value. The sharpness calculation unit calculates a sharpness factor for a pixel based on the difference value and an adjustable coefficient. The sharpness processing unit performs a sharpness processing on the pixel according to the sharpness factor and the local mean value.

Abstract: The present invention relates to a method for detecting touch points and a touch panel using the same. The method includes the steps of: providing a resistive pressure-sensing matrix includes M X-axis sensing lines and N Y-axis sensing lines, wherein the ith X-axis sensing line and the jth Y-axis sensing line are short-circuited when a preset range covering an overlapped region between the ith X-axis sensing line and the jth Y-axis sensing line is pressed; applying a scanning voltage to the pth Y-axis sensing line in a pth scanning period; detecting the M X-axis sensing lines to judge whether the scanning voltage is detected; and determining a touch coordinate as (q, p) when the qth X-axis sensing line receives the scanning voltage in the pth scanning period, wherein M, N, i, p and q are positive integers, 0<i, q<=M and 0<p<=N.

Abstract: Level shifter and related apparatus are provided. The level shifter has first to sixth transistors, wherein drains of the first and the second transistors respectively are coupled to drains of the fifth and the sixth transistors as two output nodes of the level shifter, gates of the fifth and the sixth transistors are two input nodes of the level shifter. A source, a drain and a gate of the third transistor are respectively coupled to a gate of the first transistor, the drain of the sixth transistor and a first bias voltage, and a source, a drain and a gate of the fourth transistor are respectively coupled to a gate of the second transistor, the drain of the fifth transistor and a second bias voltage.

Abstract: A driving circuit for driving electronic paper is provided, which includes a plurality of driving units. Each driving unit couples to display units of a row of the electronic paper through a data terminal for driving a display unit from a previous gray level to a target gray level during a driving period. Each driving unit includes a data driver and a switch. The data driver respectively provides a black data DC voltage and a white data DC voltage to the data terminal during a black phase and a white phase of the driving period, and provides a first pulse and a second pulse to the data node during a program phase of the driving period. The switch conducts the data node to a middle voltage between the first pulse and the second pulse.

Abstract: The present invention relates to an LED driver, power control circuit and display panel using the same. The LED driver has the function of spread spectrum frequency modulation (SSFM). The circuit topology of the driver includes a power converter, an error amplifier, a feedback circuit, a saw-tooth generator and a driving circuit. The present invention adds the SSFM circuit in the saw-tooth generator to generate a time variant current according to time variant function, so that the saw-tooth wave could be changed by the time variant current as mentioned above. Therefore, the frequency of the driving pulse generated by the LED driver will be varied as time. As the result, the reduction of the electro-magnetic interference (EMI) can be achieved.

Abstract: The present invention provides a level shifter. In an embodiment, the level shifter includes first to sixth transistors. The first and second transistors have common control nodes coupled to a first bias voltage, receive a pair of input signals and respectively provide a first output node and a second output node. The fifth and sixth transistors have common control nodes coupled to a second bias voltage to form a current mirror. The third transistor is coupled between the first and the fifth transistors and has a control node coupled to the second output node. The fourth transistor is couple between the second and the sixth transistors and has a control node coupled to the first output node.

Abstract: A method for applying the same dithering table to different flat panels and a display panel driving method using the same. The method for applying the same dithering table to different flat panels is mainly to set different dot counts between different panels on the rows, in which pixels are shifted, so that the display data of scan lines, in which the pixels are shifted, is shifted by the dot counts when the display data is substituted into the dithering table. Thus, even if different display panels use the same dithering table, the display entropy can be uniformly distributed.