Abstract: The major characteristics of the present invention lies in that, on one hand, conventional driving or overdriving techniques that do not add significant cost to the display device are used for scanning while, on the other hand, the direct-lit, LED-based backlight is turned off during the pixels' transient period where their grey levels gradually approach or overshoot above the target grey levels so that the residuals of the dynamic images during the transient period are not manifested.

Abstract: A dynamic control method for controlling backlight module of liquid crystal display (LCD) comprises steps of: receiving a frame data which is transferred to the LCD and consists a plurality of raw grayscale level; processing a statistical analysis for distribution of the plurality of raw grayscale level; and transferring a plurality of corrected grayscale level which is resulted from the statistical analysis corresponding to the raw grayscale level to the backlight control unit and a data modification simultaneously, wherein the backlight control unit uses the plurality of corrected grayscale level to modify brightness of backlight module and the data modification uses the plurality of corrected grayscale level to compare with the plurality of raw grayscale level for accurate display performance, so that the electrical power consumption is reduced and image quality is enhanced.

Abstract: A driving device for quickly changing the gray level of the liquid crystal display and its driving method are disclosed. The driving device includes a group of thin film transistors with matrix array, a plurality of gate lines and a plurality of data lines. The object of quickly changing the gray level of the liquid crystal display can be accomplished by the different arrangement of the gate lines and the data lines and the different connection of the thin film transistors with the gate lines and the data lines. The driving method for the said driving device includes: two gate lines in the liquid crystal display are simultaneously or synchronously turned on according to in the bright, period or in the black, period, the voltage for displaying the present frame interval data or the voltage for displaying black image is given to the thin film transistors connected with the gate lines, and scanning continues in turn.

Abstract: A method and device for providing electrostatic discharge (ESD) protection are disclosed. The method uses the gate-controlled conductivity of field n-channel metal-oxide-semiconductor field effect transistor (field NMOSFET), wherein considerable ESD current can be conducted away when any ESD event beyond range of operation voltage, unlike PMOS ESD protection which is to be turned on at negative voltage. Instead of the traditional two-stage ESD protection (using one ESD protection between open drain output and VSS and the other ESD protection between VDD and VSS), the device can be directly used between open drain output and power source VDD for the wide range of operation voltage. Unlike the floating-gate field NMOS using punch through current for ESD protection, a controllable triggered voltage by changing the gate threshold voltage supports the device to be a robust ESD protection.

Abstract: An overdrive accuracy adjustment device and method for use in liquid crystal display panel is presented. According to a current grayscale value of a pixel in an awaiting to be displayed image and a previous grayscale value of the corresponding pixel in an already-displayed image, the corresponding overdrive grayscale value is found from the look-up table. In order to more efficiently use the limited storage capacity of the look-up table as well as improving the accuracy of the overdrive, in accordance to the physical characteristics of the liquid crystal display panel in particular (in particular to the grayscale values which often required the overdrive), the gap size between the current grayscale values and/or the previous grayscale values with each other should be adjusted in the look-up table, without having to increase the quantity of the overdrive grayscale values stored in the look-up table.

Abstract: A driving system used for light emitting diodes relating to a controllable driver which can detect the voltage desire from application and adjust driving voltage (Vapp1-Vapp2) automatically in order to reach a steady driving current. Additionally, users can adjust the setting of driving current and the output value of DC voltage source for application with different voltage and current requirements through a control interface. The over-temperature and over-current protections (e.g. cutting off driving current or setting the upper limit of driving current) are also included in the system for prevention of possible harms. In the system, a driving system is also disclosed for integration of all the mentioned functions but no need of massive space and can be used in LED lighting system or LED backlight system for constant power emitting.

Abstract: There is provided a backlight module having a phosphor layer and a liquid crystal display device using the backlight module as its light source. The backlight module includes a bottom cover, a plurality of light sources (which can emit a blue light or an ultraviolet light) installed inside of the bottom cover, a diffusion plate, and a multicolor phosphor layer formed on a surface of the diffusion plate, wherein the phosphor consisting of the fluorescent materials can be excited by the blue light or the ultraviolet light, and the excited phosphor states subsequently emit the red light, blue light, and green light respectively associated with the individual red, blue, and green fluorescent materials in the phosphor layer. By combining appropriate ratios of red, blue, and green fluorescent materials in the phosphor layer, a white light is generated.

Abstract: The present invention discloses a method for driving a liquid crystal display device for enhancing a picture quality. More specifically, a method for driving liquid crystal display in a multi-frame polarity inversion manner is disclosed. Based on standard liquid crystal display structure, hardware and specification, the method improves frame rate by increasing input rate of grayscale level with a better brightness performance and fewer loss of grayscale.

Abstract: A method for color correction is provided. In this method, a plurality of groups of gray levels and luminance of light source of display device are respectively selected by color measurement system. The selected data of each color light are respectively calculated to obtain fitting functions which can fit the gray level data of each interval. The fitting luminance of the gray levels in interval is obtained by the fitting function and formed into a lookup table. Then in order to correspond a gamma curve of normalized gray data of image to a predetermined target curve, the two gamma curves are first taken to logarithmic calculation and the modified gray signals are obtained from the lookup table, then the modified gray signals are transmitted out for providing the display device to express the gray distribution state. The method for color correction is applicable to various display devices, especially liquid crystal display device.

Abstract: The present invention relates to a liquid crystal display device and a method of driving the same. The steps of the method contains: (1) upgrade the frame rate up to p/q times (p, q are natural numbers and p>q) and produce a series of output frames; (2) conduct grey level conversions for the series of output frames using different mapping curves based on different gamma values; (3) process the series of converted output frames by an appropriate gamma correction curve and presents the output frames on the LCD panel by an appropriate scanning method. In step (2) of the present invention, two grey level mapping curves, each specified by a specific gamma value, are applied alternately to the series of output frames and the two grey level mapping curves can be identical or different. Thus, the enhancement in brightness and high display performance and quality can be achieved.

Abstract: A method of increasing image gray-scale response speed comprising the following steps: to divide plural driven gate lines of an LCD into plural areas; to divide the frame interval time relative to the plural areas into plural sub-intervals, and to sequentially activate each first gate line of these areas during a time period of synchronized signals, then to sequentially activate the next gate lines of these areas, the operation is repeated; to apply an advance voltage to at least a gate line to overdrive frames, and to apply an image data voltage to at least a gate line; to repeat the above steps until the end of the entire frame interval time and to enter the next frame interval. The LCD can be fast driven by dividing of time and space. The method suits for treatment of frames of displays of various LCD's and organic light emitting diodes (OLED's).

Abstract: The method increases the output frame rate to p/q (p, q are both natural numbers and p>q) times of the input frame rate. In a period of time equal to the least common multiple of the input and output frame times, q input frames are output and (p?q) transient frames are generated and inserted at appropriate places before or after the q input frames in the output frame sequence so as to enhance the dynamic display effect of the display device.

Abstract: Method and device for simulating an impulse-type CRT display is provided, in which the device has first and second input control lines, first and second input data lines, first and second capacitors, a driving voltage output line, and a first transistor having a gate connected to the first input control line, a source connected to the first input data line, and a drain connected to the driving voltage output line, the first capacitor and the drain of a second transistor that is similarly connected to various elements as in the first transistor. The two capacitors are connected to ground respectively, and the driving voltage output line is to output the simulation driving voltage to the pixels of an LCD panel. The first and second input control lines are connected to a first and second gate driver, and the first and second data lines are connected to a data driver respectively.

Abstract: A method for luminance compensation of liquid crystal display includes: measuring the original gamma curve of the panel, setting a target gamma curve, inputting an initial gray level to obtain a luminance corresponding to the target gamma curve, finding the adjusted gray level for expressing the luminance from the original gamma curve, repeating the steps stated above to make a lookup table containing plural groups of proportion array. Then calculating the quantity distribution of input gray levels of images, selecting a corresponding proportion array from the lookup table according to the proportion value between dark level and bright level, substituting the adjusted gray levels in the proportion array for the input gray levels, outputting the adjusted gray levels for adjusting the signal intensity can improve the image quality.

Abstract: A device and a related device for driving LED-based, direct-lit backlight modules are provided. The device contains a driver controller which receives the timing signals from the display device and a number of drivers which is series-connected or parallel-connected to the driver controller. Each of the drivers is activated by the driver controller to drive a number of LEDs of the backlight module by current pulses. Each driver automatically detects its output current or voltage and increases the duty cycle of the current pulses so as to compensate the brightness loss from out-of-work LEDs. The method delivers pulses of different pulse counts in a fixed period of time (e.g., a frame time) to the red-, green-, and blue-light LEDs so as to achieve a constant color temperature based on their different response to the temperature.

Abstract: The major characteristics of the present invention lies in that, on one hand, conventional driving or overdriving techniques that do not add significant cost to the display device are used for scanning while, on the other hand, the direct-lit, LED-based backlight is turned off during the pixels' transient period where their grey levels gradually approach or overshoot above the target grey levels so that the residuals of the dynamic images during the transient period are not manifested.

Abstract: The method of the present invention turns off the line of LEDs of a backlight module behind the currently enabled scanline of a LCD device so that the transient behavior of the liquid crystal molecules are less obvious, thereby enhancing the dynamic response of the LCD device. For one type of embodiments, in accordance with the top-down scanning of the LCD device, the corresponding horizontal lines of the LEDs of the backlight module are turned off in a certain manner so that they exhibit a lighting (or, more precisely, darkening) pattern as if they are also “scanned” from top to down. For another type of embodiments, the horizontal lines of the LEDs of the backlight module are turned off and on simultaneously so that the backlight module actually “flashes” the LCD device.

Abstract: A method for forming a fluid injection apparatus is disclosed. A patterned sacrificial layer is formed overlying a substrate. A electroplate seed layer is formed on the patterned sacrificial layer. A structural layer is formed overlying the electroplate seed layer and the substrate. The structural layer is patterned to form a nozzle. The electroplate seed layer in the nozzle is removed. The sacrificial layer is removed to form a fluid chamber. A protective layer is formed to selectively cover the structural layer and the electroplate seed layer.

Abstract: A method and device for overdriving a liquid crystal display is provided, which overcomes the limitations and disadvantages of prior arts. The invention can reduce the optical response time of liquid crystal to the driving voltage so that dynamic images can be displayed with superior quality. To achieve the objective of accelerating liquid crystal optical response, the basic pixel structure of the overdrive device provided by the invention contains a first gate line, a second gate line, a first data line, a second data line, a first capacitor, a second capacitor, an output line, a first transistor, and a second transistor. The first transistor has its gate connected to the first gate line, its source connected to the first data line, and its drain connected to the output line, the first capacitor, and the second transistor's drain.

Abstract: Disclosed is a device for eliminating after image overlap blurring phenomenon between frames in the simulation of CRT impulse type image display with liquid crystal display (LCD), including first and second input control lines; first and second input data lines; first and second capacitors; a driving voltage output line; a first transistor including a first gate connected to a first input control line, a first source connected to a first input data line, and a first drain connected to a driving voltage output line, a first capacitor and the drain of the second transistor; and a second transistor including a second gate connected to a second input control line, a second source connected to a second input data line, and a second drain connected to a driving voltage output line, the drain of the first transistor and the second capacitor. The first and second capacitors are connected to ground respectively.