A method of presenting visual information on a screen (306) involves defining a boundary (314) delineating a first region of the screen (which may be towards a centre of the screen) from a second region of the screen (which may be towards a periphery of the screen), displaying a first portion of the visual information in the first region of the screen at a first display quality, and displaying a second portion of the visual information in the second region of the screen at a second, lower, display quality. The method further involves blurring the visual information for display in at least a portion of the second region. The location of the boundary (314) may change over time, and may be based on where a user is looking, or is expected to be looking, or on the type of information being displayed or based on other parameters.

A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.

A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.

An electronic device is provided. The electronic device includes a display, an optical sensor disposed below the display, and at least one processor, wherein the display includes a first region having a first pixel density and a second region having a second pixel density less than the first pixel density and corresponding to the disposed region of the optical sensor, the at least one processor determines a second brightness level for the second region on the basis of at least one among a first brightness level of the first region, the first pixel density, and the second pixel density when the first brightness level exceeds a predetermined threshold, identifies a third region, defined to include the second region, of the display along an edge of the first region, and sets the brightness of the second and third regions to the second brightness level.

In an example method, one or more processing devices receive encoded image data, and cause visual content to be presented on a display device according to the encoded image data. Further, the one or more processing devices receive measurement data regarding the visual content presented on the display device, and determine, based on the measurement data, one or more first perceptual quantizer (PQ) codes corresponding to the visual content presented on the display device. Further, the one or more processing devices determine, based on the encoded image data, one or more second PQ codes, and determine one or more metrics indicative of a performance characteristic the display device based on the first PQ codes and the second PQ codes. The one or more processing devices store a data item including the one or more metrics.

An image sticking elimination circuit comprises signal module (11), switch control module (12) and switch module (13), the signal module (11) has input terminal connected to an enable signal and outputs first control signal according to the enable signal; the switch control module (12) receives the first control signal outputted from the signal module and outputs second control signal; the switch module (13) receives the second control signal outputted from the switch control module (12), and controls the connection or the disconnection between a first electrode (B) and a second electrode (C). By controlling the connection or disconnection of the circuits between the first electrode (B) and the second electrode (C) with the signal module (11), the switch control module (12) and the switch module (13), the charges at the two electrodes are neutralized rapidly by shorting out the first electrode (B) and the second electrode (C) when the display signal is off and the potentials at the two electrodes are equal to eliminate the phenomena of image sticking.

A pixel of an organic light emitting diode display device includes a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor and an organic light emitting diode. The third transistor includes first and second sub-transistors which are coupled to each other in series between a drain of the first transistor and a gate node, and a fourth transistor includes third and fourth sub-transistors which are coupled to each other in series between a line of an initialization voltage and the gate node. The eighth transistor applies a reference voltage to a first node between the first and second sub-transistors in response to an emission signal, and a ninth transistor applies the reference voltage to a second node between the third and fourth sub-transistors in response to the emission signal.

According to an aspect, a display device includes an image display panel in which pixels each including first to fourth sub-pixels are arranged in a two-dimensional matrix; and a signal processing unit that converts an input signal into an output signal and outputs the generated output signal to the image display panel. The signal processing unit determines an expansion coefficient, obtains a generated signal of the fourth sub-pixel in each pixel based on input signals of the first to the third sub-pixels in the pixel itself and the expansion coefficient, obtains an output signal for the fourth sub-pixel in each pixel based on a generated signal of the fourth sub-pixel in the pixel itself and a generated signal of the fourth sub-pixel in an adjacent pixel to be output to the fourth sub-pixel.

A vehicle window plate has a maximum value of a variation of a curvature in a vertical direction being ±7.6E-6 mm.sup.−2 or less at least within a HUD display area. The curvature preferably increases monotonically from a lower side to an upper side at least within the HUD display area.

Disclosed are a content display method and an electronic device. The content display method includes reducing display brightness of some of a plurality of pixels constituting content based on pixel information of the plurality of pixels. The content display method includes displaying the content based on the reduced display brightness.