Abstract: A system and method for encoding, transmitting and updating a display based on demura calibration information for a display device comprises generating demura correction coefficients based on display color information, separating coherent components from the demura correction coefficients to generate residual information, and encode the residual information using a first encoding technique. Further, the image data may be divided into data streams, compressed and transmitted to from a host device to a display driver of a display device. The display driver decompresses and drives subpixels of the pixels in based on the decompressed data. The display driver updates the subpixels of a display using corrected greyscale values for each subpixel are determined from the decompressed data.

Abstract: A host device divides original data into first to Nth stream data for N being an integer of two or more, generates first to Nth compressed stream data by sequentially compressing the first to Nth stream data with a variable length compression, divides the first to Nth compressed stream data into fixed-length blocks, and sequentially transmits the fixed-length blocks to the display driver. The display driver includes a memory storing therein the fixed-length blocks and a decompression circuitry reading out the fixed-length blocks from the memory. The decompression circuitry includes first to Nth processing circuits. The first to Nth processing circuits each perform a predetermined process on the fixed-length blocks received to generate processed data. The host device sorts the fixed-length blocks so that the fixed-length blocks are supplied in the order in which the first to Nth processing circuits require the fixed-length blocks.

Abstract: A display driver comprises image processing circuitry, compensation circuitry, voltage data generator circuitry, and drive circuitry. The image processing circuitry is configured to generate a first voltage data based on an image data corresponding to an image to be displayed on a display panel. The compensation circuitry is configured to generate correction values for pixels of the display panel, based on a total current consumed in the pixels of the display panel and positions of the pixels in the display panel. The voltage data generator circuitry is configured to generate a second voltage data by correcting the first voltage data based on the correction values. The drive circuitry is configured to write drive voltages into the pixels based on the second voltage data.

Abstract: A display driver includes gamma curve control circuitry and a converter controller. The gamma curve control circuitry is configured to generate a first gamma curve for a first display brightness value (DBV), and a second gamma curve for a second DBV lower than the first DBV. The converter controller is configured to control a digital-analog converter (DAC) configured to perform digital-analog conversion of an input image data. Further, the converter controller is configured to adjust an analog signal voltage amplitude of the DAC based on a range of an output voltage associated with the second gamma curve.

Abstract: A display driver comprises: subpixel rendering (SPR) circuitry configured to use, in SPR, predetermined regions which fall within two lines of input subpixels of an input image; buffer memory circuitry configured to store first subpixel data for a plurality of first subpixels of the input subpixels, wherein the plurality of the first subpixels each are encompassed in the predetermined regions; and a register configured to store coefficients, wherein the coefficients respectively correspond to shapes of the portions of the first subpixels encompassed in the predetermined regions. The SPR circuitry is configured to calculate second subpixel data for second subpixels of an output image, based on the first subpixel data stored in the buffer memory circuitry and the coefficients stored in the register.

Abstract: A display driver is disclosed. The display driver includes: a memory that stores initial control points (CPs) defining a first gamma curve for a first analog state associated with a display panel (DP); CP calculation circuitry that generates, based on the initial CPs, calculated CPs for a second analog state associated with the DP; multiplexer circuitry that: inputs the calculated CPs, auxiliary CPs defining a second gamma curve, and a switching signal identifying a luminance of a region of an image; and outputs, based on the switching signal, selected CPs; and gamma curve calculation circuitry that: inputs a data value associated with the region of the image; generates, based on the selected CPs, a portion of an output gamma curve near the data value; and outputs a voltage data for displaying the region of the image on the DP based on the data value and the output gamma curve.

Abstract: A display driver comprises image processing circuitry and drive circuitry. The image processing circuitry is configured to output display image data representing a display image comprising an effective area to be displayed in a display area of a display panel and an invalid area not to be displayed in the display area. The drive circuitry drives the display panel based on the display image data comprising effective pixel data associated with first pixels included in the effective area and invalid pixel data associated with second pixels included in the invalid area. Effective pixel data associated with first pixels located within a boundary area adjacent to the invalid area is set to first grayscale values. The invalid pixel data associated with second pixels located within an insert area defined in the invalid area is set to second grayscale values comprising a value different from the first grayscale values.

Abstract: A device and method for correcting mura within a display device. The device may include a display driver that includes lookup table circuitry, correction amount calculation circuitry, and mura correction circuitry. The lookup table circuitry is configured to calculate a second grayscale value for a second display brightness value (DBV), the second grayscale value being determined to achieve a brightness level corresponding to a first grayscale value and a first DBV. The correction amount calculation circuitry is configured to calculate a mura correction amount based on a mura correction data for the second grayscale value and the second DBV. Further, the mura correction circuitry is configured to perform a mura correction on input image data by using the mura correction amount.

Abstract: A display driver includes gamma curve control circuitry and a converter controller. The gamma curve control circuitry is configured to generate a first gamma curve for a first display brightness value (DBV), and a second gamma curve for a second DBV lower than the first DBV. The converter controller is configured to control a digital-analog converter (DAC) configured to perform digital-analog conversion of an input image data. Further, the converter controller is configured to adjust an analog signal voltage amplitude of the DAC based on a range of an output voltage associated with the second gamma curve.

Abstract: A display driver comprises gamma processing circuitry, compensation circuitry, and driver circuitry. The gamma processing circuitry is configured to process the image data to generate gamma processed image data. The compensation circuitry is configured to process the gamma-processed image data, based on a ratio of a number of display elements that emit light to a total number of display elements of a display panel, to generate compensated image data. The driver circuitry is configured to drive the display panel based on the compensated image data.

Abstract: A display driver comprises drive circuitry and emission control circuitry. The display driver is configured to drive a display panel. The display panel may be a self-luminous display panel. The emission control circuitry is configured to generate a control signal to control the display panel during a first frame period to successively move a plurality of non-light-emitting areas successively inserted at an end of a display area of the display panel in a predetermined direction, the plurality of non-light-emitting areas having gradually changing widths in the predetermined direction.

Abstract: A display driver is disclosed. The display driver includes: a memory configured to store control points defining a curve associated with a display panel; and shape calculation circuitry configured to: determine, based on the control points, a first intersection point of the curve and a width of a first line associated with the display panel; and modify image data of an image based on the first intersection point.

Abstract: A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.

Abstract: A display driver comprises image processing circuitry and drive circuitry. The image processing circuitry is configured to output display image data representing a display image comprising an effective area to be displayed in a display area of a display panel and an invalid area not to be displayed in the display area. The drive circuitry drives the display panel based on the display image data comprising effective pixel data associated with first pixels included in the effective area and invalid pixel data associated with second pixels included in the invalid area. Effective pixel data associated with first pixels located within a boundary area adjacent to the invalid area is set to first grayscale values. The invalid pixel data associated with second pixels located within an insert area defined in the invalid area is set to second grayscale values comprising a value different from the first grayscale values.

Abstract: A compound represented by the formula (1), or a salt thereof (X represents carbonyl group, or sulfonyl group; R1 represents hydrogen atom, a halogen atom, an alkyl group, an alkanoyl group, cyano group, or carboxyl group; R2 represents an alkyl group, a cyclic carbon group, or a heterocyclic group; R3 represents hydrogen atom, or 1 to 3 substituents; R4 and R5 represents hydrogen atom, a halogen atom, or an alkyl group; and R6 represents an alkyl group, or an alkoxy group), which has an mPGES-1 inhibitory action, and is useful as an active ingredient of a medicament for prophylactic and/or therapeutic treatment of inflammation, pain, rheumatism, and the like.

Abstract: A display driver for driving a display panel includes a voltage data generator circuit calculating a voltage data value from an input grayscale value and a driver circuitry driving the display panel in response to the voltage data value. The voltage data generator circuit includes a basic control point data storage circuit storing therein basic control point data specifying a basic correspondence relationship between the input grayscale value and the voltage data value, a correction data memory storing correction data for each of the pixel circuits, a control point calculation circuit and a data correction circuit.

Abstract: A display driver comprises color gamut adjustment circuitry and drive circuitry. The color gamut adjustment circuitry is configured to generate an in-use parameter set based on a plurality of parameter sets corresponding to different color gamuts and a position of a target pixel and generate an output pixel data by performing color gamut adjustment processing on an input pixel data of the target pixel based on the in-use parameter set. The drive circuitry is configured to drive a display panel based on the output pixel data.

Abstract: An example method of illuminating an optical fingerprint sensor integrated with a display, where the display includes a fingerprint (FP) pixel region and an outer pixel region exclusive of the FP pixel region, is described. The method includes: processing image data in display driver circuitry configured to drive the display to present an image; adjusting a first brightness setting, during the processing of the image data, corresponding to both the FP pixel region and the outer pixel region to provide illumination for the optical fingerprint sensor; and adjusting a second brightness setting, during the processing of the image data, corresponding to only the outer pixel region.

Abstract: A display data correction apparatus is provided with: a control circuit responsive to an input gray-level value for initially providing first to N-th control points (N?3) defined in a coordinate system in which a first coordinate axis is associated with the input gray-level value and a second coordinate axis is associated with an output gray-level value to be calculated for the input gray-level value; and a processing circuit obtaining an output gray-level value by repeating an update operation in which the first to N-th control points are updated. The degree (N?1) Bezier curve is used as an approximated curve of the gamma curve. The output gray-level value is finally obtained as the coordinate value of a specific point in the degree (N?1) Bezier curve along the second coordinate axis, where the specific point has the coordinate value closest to the input gray-level value along the first coordinate axis.

Abstract: An image processing apparatus includes: a first circuit which calculates values f(RPi), f(GPi) and f(BPi) by applying a function f(x) to an R grayscale value RPi, a G grayscale value GPi and a B grayscale value BPi of each pixel i of a first image; a second circuit which calculates values f(RQi), f(GQi) and f(BQi) by applying the function f(x) to an R grayscale value RQi, a G grayscale value GQi and a B grayscale value BQi of each pixel i of a second image; and a similarity calculation circuit which calculates a degree of similarity between the first and second images depending on |f(RPi)?f(RQi)|, |f(GPi)?f(GQi)| and |f(BPi)?f(BQi)| associated with each pixel i of the first and second images. The function f(x) is a convex function monotonically non-decreasing in the domain of definition.