An electronic device includes an electronic display configured to present an image based on image data and a display pipeline having image processing circuitry to process the image data for display on the electronic display by receiving the image data, referencing a lookup table (LUT) to determine output values based on a plurality of input value sets associated with the image data, the LUT including entries respectively mapping an output value to a defined input value set, determining whether an input value set of the plurality of input value sets is represented by the entries of the LUT, performing curvature interpolation to determine an interpolated output value associated with the input value set in response to determining the input value set of the image data is not represented by the entries of the LUT, and applying the interpolated output value to the input value set to generate updated image data.

An electronic device includes an electronic display configured to present an image based on image data and a display pipeline having image processing circuitry to process the image data for display on the electronic display by receiving the image data, referencing a lookup table (LUT) to determine output values based on a plurality of input value sets associated with the image data, the LUT including entries respectively mapping an output value to a defined input value set, determining whether an input value set of the plurality of input value sets is represented by the entries of the LUT, performing curvature interpolation to determine an interpolated output value associated with the input value set in response to determining the input value set of the image data is not represented by the entries of the LUT, and applying the interpolated output value to the input value set to generate updated image data.

The present disclosure provides a color cast compensation method, which includes: obtaining a first gray value of a first pixel electrode currently to be charged; determining a second gray value of a second pixel electrode on a previous row sharing a same data line with the first pixel electrode; and obtaining a target charging voltage of the first pixel electrode based on the first gray value and the second gray value. The present invention solves the problem of display quality affected by rough fonts, caused by jaggies appearing on a triple-gate type display panel.

The present disclosure provides a color cast compensation method, which includes: obtaining a first gray value of a first pixel electrode currently to be charged; determining a second gray value of a second pixel electrode on a previous row sharing a same data line with the first pixel electrode; and obtaining a target charging voltage of the first pixel electrode based on the first gray value and the second gray value. The present invention solves the problem of display quality affected by rough fonts, caused by jaggies appearing on a triple-gate type display panel.

A flat panel display includes a four-color conversion unit, a backlight control unit, a backlight module, and a pixel array. The four-color conversion unit provides a first set of four color image signals corresponding to three color image input signals based on a preliminary conversion lookup table and provides corresponding conversion scaling factors. The backlight control unit generates a backlight adjusting factor based on the conversion scaling factors. The backlight module provides a backlight output having an intensity adjusted according to the backlight adjusting factor. The four-color conversion unit further provides a second set of four color image signals corresponding to the three color image input signals based on the backlight adjusting factor. The pixel array displays an image according to the second set of four color image signals and the backlight output.

A flat panel display includes a four-color conversion unit, a backlight control unit, a backlight module, and a pixel array. The four-color conversion unit provides a first set of four color image signals corresponding to three color image input signals based on a preliminary conversion lookup table and provides corresponding conversion scaling factors. The backlight control unit generates a backlight adjusting factor based on the conversion scaling factors. The backlight module provides a backlight output having an intensity adjusted according to the backlight adjusting factor. The four-color conversion unit further provides a second set of four color image signals corresponding to the three color image input signals based on the backlight adjusting factor. The pixel array displays an image according to the second set of four color image signals and the backlight output.

A temperature of a display is evaluated from the image displayed. The device may be tested with various images or with various test patterns in order to obtain the heat generation response related to the image. For example, a bright image may generate more heat than a dark image. The heat generation response behavior is stored into a device memory. A heat radiation response behavior is also obtained with various test patterns. The display temperature is estimated using an image to be displayed with the predetermined heat generation and heat radiation responses. The ambient temperature may be used to improve the estimation.

A temperature of a display is evaluated from the image displayed. The device may be tested with various images or with various test patterns in order to obtain the heat generation response related to the image. For example, a bright image may generate more heat than a dark image. The heat generation response behavior is stored into a device memory. A heat radiation response behavior is also obtained with various test patterns. The display temperature is estimated using an image to be displayed with the predetermined heat generation and heat radiation responses. The ambient temperature may be used to improve the estimation.

A color adjustment circuit includes: a correction processing circuit configured to generate an output image data by performing color adjustment correction on an input image data; and a correction factor calculation circuit configured to calculate correction factors used for the color adjustment correction. The correction factor calculation circuit calculates a white color distance, a complementary color distance, and an elementary color distance and calculates the correction factors based on the white color distance, the complementary color distance and the elementary color distance. The correction factors are calculated based on: white point correction parameters, top correction parameters, and intermediate correction parameters. The intermediate correction parameters are defined to control the R, G, and B grayscale values of the output image data for the case when the input image data corresponds to each of elementary colors R, G, and B, and complementary colors C, M, and Y of an intermediate grayscale value.

A method for driving an active matrix organic light-emitting diode (AMOLED) display. The method may be used to digitally drive the AMOLED display in a way that limits the susceptibility of the AMOLED display to certain problems arising out of digital driving techniques, such as image sticking or low display lifetimes. The method involves generating compensation factors corresponding to each pixel of the display and using those compensation factors to control the illumination of the display. The aspects of the method that incorporate the operation point for generating a compensation factor may also be applied to analog driving of AMOLED displays.