A display device includes a display driver configured to generate a data signal based on input image data, and a display panel configured to display an image in a display area based on the data signal. The input image data includes position information of the image, the display driver updates at least a portion of the position information included in the input image data corresponding to at least a partial area of the display area and provides the data signal including an updated position information during a frame period in which no new input image data is received, and the image corresponding to the partial area is updated in the display area based on the updated position information during the frame period.

A light-emitting diode (LED) package includes a first LED pixel including a plurality of first LED chips and a first pixel driving integrated circuit to drive the first LED chips according to an active matrix (AM) mode using entirety of a first frame period, wherein the first pixel driving integrated circuit includes a first storage area configured to store first frame data of each first LED chip, a second storage area configured to store duty ratio compensation data of each first LED chip, a pulse width modulation (PWM) data calculator configured to perform an arithmetic operation on the first frame data and the duty ratio compensation data to generate PWM data, and a PWM data generator configured to adjust an emission duty ratio based on the PWM data.

Disclosed is a display driver circuit including a resolution analyzer that detects a size of a portion of screen input data received from a processor, and acquires a setting related to scaling of the screen input data based on the detected size, and an image processor that generates screen output data corresponding to a resolution of the display panel based on the acquired setting, and supplies the generated screen output data to a display panel. Various embodiments identified herein may be realized.

Systems and methods of adjusting a frequency of a graphics controller may include a logic to determine a metric associated with an input/output (I/O) queue. The metric may be used to determine whether an I/O limited condition exists. The I/O limited condition may be associated with a graphics controller. There may be a logic to cause a frequency of the graphics controller to be decreased when the I/O limited condition exists, and a logic to cause the frequency of the graphics controller to be increased when the I/O limited condition does not exist. The I/O limited condition may exist when a magnitude of the metric is equal to or greater than a first threshold. The I/O limited condition may not exist when the magnitude of the metric is equal to or less than a second threshold.

A circuit device includes: a color reduction circuit configured to execute color reduction processing from input image data in which pixel data is m bits to color-reduced image data in which pixel data is n bits, and configured to apply spatial error diffusion or temporal error diffusion in the color reduction processing; a storage circuit storing the color-reduced image data; and an image conversion circuit configured to execute image conversion processing, which is at least one of mapping processing and scaling processing, on the color-reduced image data stored in the storage circuit to output output image data, and configured to execute interpolation processing, which is in the image conversion processing, of generating pixel data of the output image data from a plurality of pieces of pixel data of the color-reduced image data.

The present disclosure discloses a display device and a driving method of the display device. The display device includes a display panel for displaying an image, a driver for driving the display panel, a controller for controlling the driver, and a duty cycle controller for defining an unknown area in which vertical resolution information is not known and a known area in which the vertical resolution information is known within one frame when a driving frequency of the display panel is changed, and varying a duty cycle for driving the known area.

A data storage device to be coupled to a display device including a display unit including a plurality of blocks, each including a plurality of pixels, the data storage device including: a memory device to store a first address value and a second address value including information on a position of one of the plurality of blocks, store a first indication value to be utilized to determine whether the first address value is effective and a second indication value to be utilized to determine whether the second address value is effective, and store compensation data including information on the blocks; an effective address determinator to determine whether the first address value and the second address value are effective corresponding to the first indication value and the second indication value; and an updater to update the first and second indication values, the first and second address values, and the compensation data.

A semiconductor device with low power consumption is provided. The semiconductor device includes a controller, a register, and an image processing portion. The image processing portion is configured to process an image data using a parameter. The image processing portion receives an image data from a frame memory and receives a parameter from the register. The frame memory is configured to retain the image data while power supply is stopped. The register is configured to retain the parameter while the power supply is stopped. The controller is configured to control power supply to the register, power supply to the frame memory, and power supply to the image processing portion. The register includes a scan chain register. A transistor with which the scan chain register is configured includes an oxide semiconductor in a channel formation region.

An ultrasound diagnostic imaging apparatus which generates ultrasound image data based on a reception signal generated by an ultrasound probe, which transmits and receives ultrasound to and from a test subject, and displays an ultrasound image, includes: a cine-memory that stores cine-image data of the ultrasound image; a determiner that determines whether or not to retain the cine-image data, which is stored in the cine-memory before a transition from a display screen having the ultrasound image into a display screen having a predetermined number of more images; and a hardware processor that indicates an arrangement of the ultrasound image in a display screen transitioned next and a setting state of retention of the cine-image data in the cine-memory before and after the transition, generates a display screen including a first button for accepting an input of the transition into the display screen, and displays the display screen on a display.

An object of the present invention is to, in an organic EL display device in which an initialization voltage is applied, extend the time period usable to write a video voltage as compared with the conventional art. In order to achieve this object, the organic EL display device includes a plurality of pixels each including an organic EL element; a plurality of video lines that supply a video voltage to each of the plurality of pixels; a plurality of scanning lines that supply a scanning voltage to each of the plurality of pixels; a unit that supplies a selection scanning voltage concurrently to an N number of scanning lines among the plurality of scanning lines, and supplies an initialization voltage to each of the plurality of video lines, in a k'th scanning period; and a unit that supplies a selection scanning voltage sequentially to the N number of scanning lines, and supplies video voltages to each of the plurality of video lines, in (k+1)th through (k+N)th scanning periods respectively. N is an integer of 2 or greater (2≦N) and k is any positive integer.