A display apparatus and a method of controlling thereof are provided. The display apparatus may include a display including a plurality of light emitting diode (LED) devices, a driver configured to drive the plurality of LED devices, and a controller configured to control the driver to apply an image signal to each of a plurality of scan lines, and apply a first image signal to a first image frame period in a first scan line among the plurality of scan lines and apply the first image signal to a second image frame period in a second scan line among the plurality of scan lines.

A display apparatus according to embodiments of the present disclosure includes a display panel including at least one light emitting element that emits light according to a difference in respective voltages applied to an anode electrode and a cathode electrode, and including a plurality of pixels that are connected to a plurality of data lines, a plurality of gate lines, and a plurality of light emitting control lines, wherein a reset voltage is supplied to the anode electrode, a data driver for supplying data signals to the data lines, a gate driver for supplying gate signals to the gate lines, and supplying a light emitting control signal to each of the light emitting control lines, and a timing controller for controlling the data driver and the gate driver, and enabling the reset voltage to be supplied in sync with a plurality of non-light emitting periods of the light emitting control signal included in one frame.

A display driver has current reference units and current-generating units. Each current reference unit generates a reference current and scaling it to form a scaled reference current. Each current-generating unit generates an output current from one scaled reference current to drive a selected light emitter (LE) of a LE matrix over a time slice allocated for driving the selected LE. Each current-generating unit has a switching circuit modulating the scaled reference current according to a switching sequence to form output current pulses to drive a LE. The processor determines the switching sequence to avoid a shortest current pulse shorter than a minimum current pulse width via (a) calculating a duty cycle as a ratio of an average output current to the scaled reference current, (b) mapping the duty cycle to a modulation sequence, and (c) repeating stretching a time duration of the modulation sequence by double, splitting the modulation sequence into half, and allocating the split sequence into two times of original time slice, until the shortest current pulse satisfies the above-mentioned requirement.

Embodiments of the present application provide a method for controlling voltages of a liquid crystal on silicon (LCoS) two-dimensional array which includes a plurality of pixel sets, and the plurality of pixel sets include a first pixel set and a second pixel set. The method includes: determining a plurality of bit sequences, where the plurality of bit sequences include a first bit sequence and a second bit sequence; controlling a voltage of the first pixel set by using the first bit sequence; and controlling a voltage of the second pixel set by using the second bit sequence, where the first pixel set and the second pixel set are in different phase cycles in a port direction of the LCoS two-dimensional array, the first pixel set and the second pixel set have a same phase, and duty ratios of the first bit sequence and the second bit sequence are the same.

A passive matrix LED display driving scheme based on subframe pulse width modulation (PWM) to increase frame scan rate and further with channel-to-channel compensation is provided. The scheme may comprise: dividing each frame of the display video into T number of subframes; converting a driving signal for a pixel into a N-bit driving data, compensating the driving data with a compensation value; mapping the compensated driving data into the T number of subframes respectively.

It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (½) Lmax2<Lmax1<( 9/10) Lmax2 is satisfied in the one frame period, is provided.

A display device includes pixels, and a power converter configured to receive a first power voltage and an external input voltage and provide a gamma voltage to a first output terminal. The power converter includes a target power voltage generator circuit configured to generate a target power voltage, a first gamma voltage generator circuit configured to generate a first gamma voltage, a second gamma voltage generator circuit configured to generate a second gamma voltage, a first gap controller configured to generate the second gamma voltage based on the first power voltage, a reference target power voltage, and a reference gamma voltage during a period in which a display mode, and a first selector configured to selectively output the first gamma voltage or the second gamma voltage according to the display mode.

A driving method adapted to drive a first pixel of a display device to display an image in a frame time is provided. The driving method includes dividing the frame time into a first sub-frame time and a second sub-frame time; providing a first data with a first gray level; and controlling the first pixel to be emitted in the first sub-frame time or in the second sub-frame time according to the first data. When the first gray level is greater than a predetermined gray level, controlling the first pixel to be emitted in the first sub-frame time, and when the first gray level is less than or equal to the predetermined current level, controlling the first pixel to be emitted in the second sub-frame time.

It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (1/2) Lmax2<Lmax1<(9/10) Lmax2 is satisfied in the one frame period, is provided.

A display apparatus includes: a display panel comprising a plurality of pixels configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a light source part configured to provide light to the display panel and comprising a plurality of light sources; and a light source driver configured to drive the light source part, wherein a first light source of the light source part is configured to output a first luminance in an active period defined by the data voltage being output to the pixel and a second luminance greater than the first luminance in an inactive period defined by the data voltage is not being output to the pixel.