A display method of an electronic device includes following steps. Providing a first image by a display, and a first vergence plane of two eyes of a user is located at a first position when the user views the first image. Providing a second image by the display, and the first image, the second image and an environmental scene are located within a field of view of the user, and a second vergence plane of the two eyes of the user is located at a second position when the user views the second image. A first distance exists between the first position of the first vergence plane and the user, a second distance exists between the second position of the second vergence plane and the user, and the first distance is different from the second distance.

A method for applying adapted colour rendering in relation to intensity of light of wavelengths relevant to the circadian rhythm of a user, a computer program, a carrier, a system and a head-mounted device is disclosed. The method comprises receiving gaze tracking information identifying a gaze vector of the user of the system, and determining a respective location of a first area of the display and a second areas of the display based on the identified gaze vector. A first colour rendering mode is applied in the first area of the display, and a second colour rendering mode is applied in the second area of the display. The first colour rendering mode and the second colour rendering mode differ in relation to a degree of selective adaptation of intensity of light of wavelengths relevant to the circadian rhythm of the user.

This application discloses a display method and a display control apparatus. The display system includes a projection screen, the projection screen includes a transparent substrate and a liquid crystal film covering the transparent substrate, and the liquid crystal film includes a plurality of liquid crystal cells. The display method includes: obtaining a to-be-displayed image; determining a target liquid crystal cell from the plurality of liquid crystal cells based on locations of pixels in the to-be-displayed image; setting a status of the target liquid crystal cell to a scattering state, and setting a status of a non-target liquid crystal cell to a transparent state, where the non-target liquid crystal cell is a liquid crystal cell in the plurality of liquid crystal cells other than the target liquid crystal cell; and displaying a projection image of the to-be-displayed image on the target liquid crystal cell.

A head-up display device includes: light sources; a light source driver that drives the light sources; a second control unit that illuminates the light sources via the light source driver on the basis of illumination control data; and a DMD display element that generates display light on the basis of illumination light emitted by the light sources. The illumination control data includes control modes for generating the illumination light brightness corresponding to a requested brightness. The control modes have differing brightness ranges, which partially overlap each other. The second control unit switches modes between the control modes when the requested brightness has reached a mode switching value, which is located in a non-end part of an overlapping region where one of the brightness ranges of one of the control modes and another one of the brightness ranges of another one of the control modes overlap.

A picture generation unit comprises a light emitter array that is disposed on a substrate and provides a projection imaging light. The light emitter array includes a plurality of light emitting units. Each of the light emitting units includes a plurality of mini LED chips. An electronic control unit is electrically coupled to the substrate to control the mini LED chips to generate the projection imaging light. The light emitter array may emit light as well as present controllable images simultaneously. Because the picture generation unit abandons using the conventional backlight source and the module thereof, it can effectively utilize light energy and reduce radiation heat/waste heat. A vehicular head-up display system using the picture generation unit may improve operation reliability thereof.

A virtual image display device includes: a switching mechanism for switching a position of a view angle including a first position and a second position; and a display control unit for displaying the virtual image in response to a switching of the position of the view angle by the switching mechanism. When the display control unit displays a specific content within the view angle at the second position after the switching mechanism switches the view angle from the first position to the second position, the display control unit starts displaying a related content preliminarily associated with the specific content before the switching of the view angle to the second position is completed.

In a pixel circuit including a first capacitance element and a second capacitance element, in a writing sub-frame, a voltage corresponding to a gray scale level is held in a first capacitance element, a plurality of OLEDs are off in a vertical scanning line flyback period after the writing sub-frame, and in a light-emitting sub-frame after the vertical scanning line flyback period, a current corresponding to the voltage held in the first capacitance element is supplied to the OLED, and the voltage corresponding to the gray scale level is held in the second capacitance element. In an optical path shifting element, an optical path is shifted in the vertical scanning line flyback period, and in the light-emitting sub-frame, the optical path is stabilized.

Systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. A six-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

A wearable display apparatus includes a control unit, a display unit, a light transmission unit, a semi-transparent photodetector unit and a signal processing unit. The display unit includes multiple light-emitting elements and is controlled by the control unit and outputs an optical image; the light transmission unit delivers the optical image to human eyes; the semi-transparent photodetector unit converts the light reflected from the human eyes to an electrical signal which includes information regarding the health status and gazing direction of the human eyes; the signal processing unit extracts information through analyzing the electrical signal and transmits the information to the control unit; the control unit adjusts an output image of the display unit in real time according to the information; and the light transmission unit and the semi-transparent photodetector unit propagate the external light beams to the human eyes.

Disclosed herein are techniques for forming a thin-film circuit layer on an array of light-emitting diodes (LEDs). LEDs in the array of LEDs can be singulated by various processes, such as etching and ion implantation. Singulating LEDs can be performed before or after forming the thin-film circuit layer on the array of LEDs. The array of LEDs can be bonded to a transparent or non-transparent substrate.