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.

Smaller halftone tiles are implemented on a first modulator of a dual modulation projection system. This techniques uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to effectively increase the number of levels provided by a given tile size in the halftone modulator. It addresses the issue of reduced contrast ratio at low light levels for small tile sizes and allows the use of smaller PSFs which reduce halo artifacts in the projected image and may be utilized in 3D projecting and viewing.

The liquid crystal drive apparatus drives a liquid crystal element. The apparatus includes an image data producer producing, using each of multiple input frame image data continuously input thereto, first frame image data and second frame image data, and a driver sequentially controlling, depending on the first frame image data and the second frame image data, application of a first voltage or a second voltage lower than the first voltage to each of multiple pixels of the liquid crystal element in respective multiple sub-frame periods included in one frame period to cause that pixel to form a tone. Pixel data at pixel positions corresponding to each other in the first and second frame image data have mutually different tones. A tone difference between the mutually different tones is 20% or less of a higher one of the mutually different tones.

A liquid crystal display apparatus receives illumination light from a light source to a liquid crystal element, displays an image, and includes a gradation converter configured to generate a plurality of subframes by performing different gradation conversion processes for a plurality of input frames that are continuously input, a driver configured to drive the liquid crystal element by controlling an application period of a first voltage and an application period of a second voltage lower than the first voltage for each pixel in the liquid crystal element in accordance with gradation data for each subframe, and a controller configured to provide a light intensity control for each subframe so as to change an intensity of the illumination light or an intensity of display light from the liquid crystal element in accordance with the gradation conversion processing for generating the subframe.

Disclosed is an OLED PWM pixel driving method. The method comprises: slicing a frame of image into a plurality of subfields different in weight, and splitting a subfield having a higher weight thereamong into secondary subfields in a predetermined splitting ratio; and rearranging the split secondary subfields from the subfield having a higher weight and non-split subfields according to an input image and the predetermined splitting ratio in order to eliminate an image display error.

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 method for generating a drive signal for driving a light emitting element of a display. The method includes: dividing the M bits into MN1+1 data ranges, each including N1 consecutive bits of the M bits; determining N2 bits for uniquely identifying the MN1+1 data ranges; generating a coded signal of N1+N2 bits for representing the M bits of the input signal; based on the coded signal, generating the drive signal comprising a sequence of N1 bits, each bit of said sequence of N1 bits controlling a current through the light emitting element or a voltage across the light emitting element, during a time interval, one bit at a time.

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.

A display device and method of operating the display device is disclosed. The display device and method accurately compensate for the degradation of subpixels by monitoring the degradation in real time using an optical electronic device located under, or at a lower portion of, a display panel and partially overlapping an optical area in the display area. Such monitoring of the degradation can be performed in real time using such an optical element or device even in a situation where the display device is used, and the compensation of the degradation can be performed in real time in accordance with the result of the monitoring.

The liquid crystal drive apparatus drives a liquid crystal element. The apparatus includes an image data producer producing, using each of multiple input frame image data continuously input thereto, first frame image data and second frame image data, and a driver sequentially controlling, depending on the first frame image data and the second frame image data, application of a first voltage or a second voltage lower than the first voltage to each of multiple pixels of the liquid crystal element in respective multiple sub-frame periods included in one frame period to cause that pixel to form a tone. Pixel data at pixel positions corresponding to each other in the first and second frame image data have mutually different tones. A tone difference between the mutually different tones is 20% or less of a higher one of the mutually different tones.