A liquid crystal driving apparatus configured to drive a liquid crystal element which illumination light from a light source enters includes an image data generator configured to generate display image data from each of input frame image data that is input consecutively, a driver configured to enable each pixel to display a gradation by controlling, based on the display image data, an application of a first voltage to each pixel in the liquid crystal element in each of a plurality of subframe periods contained in one frame period and an application of a second voltage lower than the first voltage, and a controller configured to control an intensity of the illumination light.

The liquid crystal drive apparatus controls application of a first or second voltage to each pixel of a liquid crystal element in respective sub-frame periods in one frame period to cause that pixel to form a tone. The sub-frame period where the first voltage is applied to the pixel is referred to as an ON period, the sub-frame period where the second voltage is applied to the pixel is referred to as an OFF period. The sub-frame period corresponding to the ON and OFF periods respectively for first and second pixels of two mutually adjacent pixels is referred to as an ON/OFF adjacent period. The apparatus provides, when causing the first and second pixels to form tones adjacent to each other, a plurality of the ON/OFF adjacent periods each being 1.0 ms or less separately from each other in the one frame period.

The liquid crystal drive apparatus controls application of a first or second voltage to each pixel of a liquid crystal element in respective multiple sub-frame periods included in one frame period to cause that pixel to form a tone. The sub-frame period where the first voltage is applied to the pixel is referred to as an ON period, and the sub-frame period where the second voltage is applied to the pixel is referred to as an OFF period. The apparatus provide, when causing the pixel to form the tone using the ON period, multiple ON period sets separately from each other in the one frame period. Each ON period set includes one or more ON periods. The apparatus sets a temporal interval between temporal centers of the respective ON period sets to 60% or less of the one frame period or to 5.0 ms or less.

The present disclosure relates to the technical field of LED display screens, and in particular, to an LED display device and a method for driving the same. The driving method includes: generating a grayscale data in accordance with an image to be displayed; generating a control signal in accordance with the grayscale data, wherein the control signal includes a plurality of subframe signals each having a duration corresponding to a respective subframe display time; and controlling the corresponding LED lamps to be turned on or off by use of the subframe signals in each subframe of the frame cycle. The frame cycle includes reset time periods separating the successive subframes from each other. The order of the plurality of subframes in the frame cycle can be adjusted by use of the grayscale data. The LED display device and the driving method for the LED display device according to the disclosure can divide each frame cycle into a plurality of subframes and adjust the subframe display time to eliminate parasitic effects between the LED display unit boards, so as to eliminate the color difference between the LED display unit boards.

A display apparatus includes a conversion unit, and an output unit. The conversion unit receives an input signal in which frame rates are respectively set for frames, individually sets received frames of the input signal as a first frame to be output with a first polarity or a second frame to be output with a second polarity opposite to the first polarity, and converts the frame rates of the first frames and the frame rates of the second frames so that the first frame period taken to output the first frames and the second frame period taken to output the second frames are equal within a predetermined time period. The output unit outputs the first frames with the first polarity to a display unit, and outputs the second frames with the second polarity to the display unit.

A display device includes a display panel including a plurality of pixels which are connected to a plurality of gate lines and a plurality of data lines and display a plurality of consecutive frames of images, a data driver driving the data lines, a gate driver driving the gate lines, a clock generator outputting a gate clock signal, which drives the gate driver and swings between a gate-on voltage and a gate-off voltage, and a signal controller outputting a gate pulse signal which drives the clock generator and a data control signal which controls the data driver. The clock generator includes a voltage maintainer maintaining the gate clock signal at a reference voltage that has a fixed value between the gate-on voltage and the gate-off voltage for a predetermined time.

A method of driving a display device includes displaying an image corresponding to a left eye image signal during a first frame set including one or more frames and displaying an image corresponding to a right eye image signal during a second frame set including one or more successive frames, in which the first frame set and the second frame set include at least one frame displaying a first image according to a first gamma curve and at least one frame displaying a second image according to a second gamma curve, and the first frame set and the second frame set include two successive frames displaying the second image.

A display device that achieves both high detection sensitivity of the touch sensor unit and smooth input on the touch sensor unit is provided. A method for driving a display device includes a first period and a second period. The display device includes pixels, a gate driver, and a touch sensor unit. The touch sensor unit detects a touch in the first period and stops detecting a touch in the second period. The gate driver supplies signals to some of the pixels and does not supply signals to the other pixels in the second period.

A plurality of display pixels each include: an organic EL element; a capacitance element that holds a first voltage used to cause the organic EL element to emit light; a drive transistor that supplies a current corresponding to the first voltage to the organic EL element; and a capacitance element that holds a second voltage that is a next voltage to be held in the capacitance element. A power line is connected to a drain electrode of the drive transistor or a cathode of the organic EL element. An adjustment unit adjusts the voltage applied to the power line to be lower than the predetermined voltage, when a total current of the plurality of display pixels in the case where a current corresponding to the second voltage is supplied to the organic EL element in each of the plurality of display pixels is greater than or equal to a threshold.

A method of pulse width modulating a spatial light modulator comprises determining a modulation sequence and applying the modulation sequence to the spatial light modulator in a time order method. The modulation sequence comprises a plurality of minor modulation segments. Each minor modulation segment comprises an always-on modulation segment in an always-on state. The plurality of minor modulation segments are temporally spaced such that the always-on modulation segments are spaced at predetermined intervals. Each minor modulation segment comprises at least one thermometer bit.