Abstract: A display device includes a display panel including a display panel including a plurality of pixels, a memory device configured to store pre-scaling data and compensation data, and a panel driver configured to generate first image data by performing a pre-scaling operation on input image data based on the pre-scaling data, generate second image data by performing a compensation operation on the input image data based on the compensation data, and provide a driving signal to the pixels to display a pre-scaled image corresponding to the first image data, or to display a compensated image corresponding to the second image data, wherein the pre-scaling operation is performed before the compensation operation is performed.

Abstract: A method of performing an image-adaptive tone-mapping for a display device including performing a first tone-mapping on an image frame by applying a first tone-mapping function to respective non-target display blocks, and performing a second tone-mapping on the image frame by applying a second tone-mapping function obtained by applying a local weighted value to the first tone-mapping function to respective target display blocks.

Abstract: An organic light emitting display apparatus includes a first data line, a comparator, and a data generator. The first data line is connected to a first pixel. The comparator compares first image data of input image data to at least one of a first critical grayscale value or a second critical grayscale value, where the first image data corresponds to the first pixel. The data generator determines the first critical grayscale value or the second critical grayscale value as first corrected image data when the first image data is equal to or greater than the first critical grayscale value but lower than the second critical grayscale value.

Abstract: A method of performing an image-adaptive tone-mapping for a display device including performing a first tone-mapping on an image frame by applying a first tone-mapping function to respective non-target display blocks, and performing a second tone-mapping on the image frame by applying a second tone-mapping function obtained by applying a local weighted value to the first tone-mapping function to respective target display blocks.

Abstract: A method of performing image-adaptive tone mapping includes: determining a tone mapping curve based on a data signal corresponding to an image frame to be displayed on a display panel; determining whether a scene-change occurs between the image frame and a previous image frame by comparing the data signal with a previous data signal corresponding to the previous image frame; generating, in response to a determination that the scene-change does not occur, a final tone mapping curve based on the tone mapping curve and a previous tone mapping curve, which is applied to the previous image frame; determining, in response to a determination that the scene change occurs, the tone mapping curve as the final tone mapping curve; and performing a tone mapping by applying the final tone mapping curve to the image frame.

Abstract: A method of driving a display panel includes: grouping m adjacent pixels, which output same color light, into one pixel-group in the display panel, where m is an integer greater than or equal to two; determining whether a unit grayscale (UG) to be implemented by the pixel-group is greater than or equal to a determined reference grayscale (REFG) by analyzing respective data signals applied to the pixel-group; performing, in response to the UG being greater than or equal to the REFG, a normal driving that implements the UG by controlling all of the m adjacent pixels to emit light with first luminance corresponding to the respective data signals; and performing, in response to the UG being less than the REFG, a combination driving that implements the UG by controlling only a portion of the m adjacent pixels to emit light with second luminance that is greater than the first luminance.

Abstract: A display device includes a display panel including a display panel including a plurality of pixels, a memory device configured to store pre-scaling data and compensation data, and a panel driver configured to generate first image data by performing a pre-scaling operation on input image data based on the pre-scaling data, generate second image data by performing a compensation operation on the input image data based on the compensation data, and provide a driving signal to the pixels to display a pre-scaled image corresponding to the first image data, or to display a compensated image corresponding to the second image data, wherein the pre-scaling operation is performed before the compensation operation is performed.

Abstract: A semiconductor memory devices and methods of fabricating the same are disclosed. For example, the semiconductor memory device including a semiconductor substrate including a cell area and a peripheral area, a plurality of bottom electrodes on the semiconductor substrate at the cell area, a dielectric layer conformally covering top surfaces and sidewalls of the bottom electrodes, and an upper electrode on the dielectric layer and filling between the bottom electrodes may be provided. A surface roughness of a top surface of the upper electrode may be less than a surface roughness of a side surface of the upper electrode.

Abstract: Provided are slurry compounds for polishing an SOH organic layer and methods of fabricating a semiconductor device using the same. The slurry compound may include a polishing particle, an oxidizing agent including at least one selected from the group consisting of a nitrate, a sulfate, a chlorate, a perchlorate, a chlorine, and a peroxide, and a polishing accelerator.

Abstract: An organic light emitting display apparatus includes a first data line, a comparator, and a data generator. The first data line is connected to a first pixel. The comparator compares first image data of input image data to at least one of a first critical grayscale value or a second critical grayscale value, where the first image data corresponds to the first pixel. The data generator determines the first critical grayscale value or the second critical grayscale value as first corrected image data when the first image data is equal to or greater than the first critical grayscale value but lower than the second critical grayscale value.

Abstract: An organic light emitting display apparatus includes a first data line, a comparator, and a data generator. The first data line is connected to a first pixel. The comparator compares first image data of input image data to at least one of a first critical grayscale value or a second critical grayscale value, where the first image data corresponds to the first pixel. The data generator determines the first critical grayscale value or the second critical grayscale value as first corrected image data when the first image data is equal to or greater than the first critical grayscale value but lower than the second critical grayscale value.

Abstract: Provided are slurry compounds for polishing an SOH organic layer and methods of fabricating a semiconductor device using the same. The slurry compound may include a polishing particle, an oxidizing agent including at least one selected from the group consisting of a nitrate, a sulfate, a chlorate, a perchlorate, a chlorine, and a peroxide, and a polishing accelerator.

Abstract: An organic light emitting display apparatus includes a first data line, a comparator, and a data generator. The first data line is connected to a first pixel. The comparator compares first image data of input image data to at least one of a first critical grayscale value or a second critical grayscale value, where the first image data corresponds to the first pixel. The data generator determines the first critical grayscale value or the second critical grayscale value as first corrected image data when the first image data is equal to or greater than the first critical grayscale value but lower than the second critical grayscale value.

Abstract: Provided are slurry compounds for polishing an SOH organic layer and methods of fabricating a semiconductor device using the same. The slurry compound may include a polishing particle, an oxidizing agent including at least one selected from the group consisting of a nitrate, a sulfate, a chlorate, a perchlorate, a chlorine, and a peroxide, and a polishing accelerator.

Abstract: A method for saving a battery power of a terminal includes receiving a touch input on a touch screen, detecting an input stop event where the touch input is stopped, switching the touch screen to a turned-off state or a dim state, in response to the input stop event, and detecting an input resume event where the touch input is resumed during the turned-off state or the dim state, and switching the touch screen to be a turned-on state in response to the input resume event. Other embodiments including an apparatus for saving a battery power are also disclosed.

Abstract: The present invention relates to a flowmeter suitable for a micro flow sensor. The flowmeter of the present invention comprises a resistive heater to be inserted into a fluid, AC power with a first frequency supplied to the resistive heater to periodically heat the resistive heater, a signal processing unit for detecting a first signal from the resistive heater in relation to a temperature variation of the resistive heater by the AC power, and obtaining a phase lag of the first signal relative to the heat generation in the resistive heater, and an operation unit for calculating a flow rate based on the obtained phage lag. According to the present invention, the flowmeter of the present invention has a wide measurement range and high measurement accuracy with a simple structure.

Abstract: The present invention relates to a flowmeter suitable for a micro flow sensor. The flowmeter of the present invention comprises a resistive heater to be inserted into a fluid, AC power with a first frequency supplied to the resistive heater to periodically heat the resistive heater, a signal processing unit for detecting a first signal from the resistive heater in relation to a temperature variation of the resistive heater by the AC power, and obtaining a phase lag of the first signal relative to the heat generation in the resistive heater, and an operation unit for calculating a flow rate based on the obtained phage lag. According to the present invention, the flowmeter of the present invention has a wide measurement range and high measurement accuracy with a simple structure.