This document discusses, among other things, an apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a bistable display. A display element of the bistable display is placed in one of two stable orientations upon application of a biasing voltage and stays in the stable orientation when the biasing voltage is removed. The processor includes a display module configured to display a non-blank reversion display screen on the bistable display when no input is received at the user interface after a specified time duration, and to recurrently change the reversion display screen until input is received at the user interface.

Provided are a method, apparatus and device for compensating a display screen and a display screen driver board, which belong to the technical field of display. The method comprises: according to the texture complexity of a screen to be displayed by each region (10) among a plurality of regions (10), determining a conversion matrix corresponding to pixels in each region (10)(101); and performing grayscale compensation on pixel points of the screen in each region (10) by using the conversion matrix corresponding to the pixels in each region (10) to obtain a compensated grayscale (102); wherein the compensated grayscale is configured to control the screen display of the plurality of regions (10), so that the uniformity of the screens displayed in a first screen is higher than the uniformity of the screens displayed in a second screen, and the texture complexity of the first screen is lower than the texture complexity of the second screen, the first region and the second region each being one among the plurality of regions (10).

This document discusses, among other things, an apparatus comprising a pump configured to deliver insulin, a processor, and a user interface including a bistable display. A display element of the bistable display is placed in one of two stable orientations upon application of a biasing voltage and stays in the stable orientation when the biasing voltage is removed. The processor includes a display module configured to display a non-blank reversion display screen on the bistable display when no input is received at the user interface after a specified time duration, and to recurrently change the reversion display screen until input is received at the user interface.

A display apparatus includes a first pixel and a second pixel. Each of the first and second pixels includes a first sub-pixel which emits light having a first color, a second sub-pixel which emits light having a second color different from the first color, a third sub-pixel which emits light having a third color different from the first and second colors, and an infrared sub-pixel which emits infrared light. The infrared light emitted from the infrared sub-pixel in the first pixel and the infrared light emitted from the infrared sub-pixel in the second pixel have different intensities from each other.

A preparation method of a display panel includes: forming multiple compensation groups on a substrate to obtain an array substrate, where the multiple compensation groups include at least first compensation group and second compensation group, and brightness difference of light-emitting elements of same light-emitting color in the first compensation group and the second compensation group under a same gray scale is larger than a preset value; calculating thicknesses of first color film layer, second color film layer and third color film layer corresponding to each of the multiple compensation groups respectively; forming the first color film layer, the second color film layer and the third color film layer on light-emitting side of the first light-emitting element, the second light-emitting element, and the third light-emitting element respectively according to the thicknesses of the first color film layer, the second color film layer and the third color film layer obtained by calculation.

A color shift compensation method, a color shift compensation system and a display panel are provided. The color shift compensation method includes: accumulating actual display time of a display panel; determining whether or not the actual display time reaches a preset cumulative display time threshold; and in a case where the actual display time reaches the preset cumulative display time threshold, driving the display panel to display according to compensated adjustment voltages that are pre-stored, and in a case where the actual display time does not reach the preset cumulative display time threshold, driving the display panel to display according to current adjustment voltages that are pre-stored.

A display device includes pixels, and each pixel is connected between a first electrode or a second electrode of a driving transistor and a bias line, includes a bias transistor configured to transfer a bias voltage applied from the bias line to the first electrode or the second electrode of the driving transistor during a bias period. Bias voltages applied to the pixels emitting light of different colors are different from each other.

An OLED panel may include a substrate including a first region and a second region disposed along a first direction. A plurality of first pixels are disposed in the first region on the substrate, the first pixels each having a first area, the first pixels each comprising a first unit pixel, a second unit pixel disposed along a second direction from the first unit pixel, and a transmission portion disposed along the first direction from the first unit pixel and the second unit pixel. A plurality of second pixels are disposed in the second region on the substrate, the second pixels each having a second area less than the first area, the second pixels each comprising a third unit pixel. The first unit pixel, the second unit pixel, and the third unit pixel may have substantially the same shape as each other.

A display device, includes: a first processor configured to increase or decrease values of color components representing three colors and included in a first video signal, in accordance with values corresponding to the values of the color components representing three colors; a second processor configured to convert a second video signal into a third video signal, the second video signal including the color components representing three colors and having the values increased or decreased by the first processor, and the third video signal including color components representing four colors; and a display configured to display the third video signal including the color components representing four colors.

Augmented reality headsets. A plurality of tilted pin-mirrors imbedded between an inner surface and an outer surface of a combiner, where the plurality of tilted pin-mirrors are configured to reflect the guided image light towards the eye box, and wherein the plurality of pin-mirrors include one or more gaps between them wherein the one or more gaps allow the passage of an ambient light through the combiner towards the eye box.