Optical display system, display control device and augmented reality device

Abstract

The invention provides an optical display system, a display control device and an augmented reality device. The optical display system comprises at least two sets of imaging assemblies; each set of image assembly comprises a display source, a first semi-transmitting semi-reflecting lens and a second semi-transmitting semi-reflecting lens, wherein the display source is used for emitting imaging light according to the image of a visual angle corresponding to a monocular unit, the first semi-transmitting semi-reflecting lens is used for reflecting the imaging light emitted by the display source and transmitting ambient light into human eyes, and the second semi-transmitting semi-reflecting lens is used for reflecting the imaging light reflected by the first semi-transmitting semi-reflecting lens into the human eyes so as to display an image at a corresponding depth of field, and is used for transmitting ambient light to the first semi-transmitting semi-reflecting lens. According to the optical display system, the display control device and the augmented reality device of the invention, the at least two sets of imaging assemblies are adopted; the brightness of the imaging light emittedby the display source is adjusted, so that the depth of field of an imaging surface obtained by means of fitting on the basis of the brightness is corresponding to the depth of field of a stereoscopic image displayed by a binocular unit, and therefore, vergence-accommodation conflict is avoided, a user will not feel fatigue and discomfort, and the definition of the image is improved.

Description

technical field [0001] The invention relates to the technical field of display control, in particular to an optical display system, a display control device and an augmented reality device. Background technique [0002] The human visual system will perform convergence of the eyes when viewing different distant objects, that is, convergence adjustment (when looking at close objects, the eyes usually look inward; when looking at distant objects, the visual axis will diverge) and focus adjustment (adjustment of the lens, focus light onto the retina). In real life, when the human visual system views objects, vergence accommodation and focus accommodation occur simultaneously, and humans have become accustomed to this way. [0003] In the augmented reality system, the scenes that humans see are all displayed on the display screen. However, the light emitted by the screen does not have depth information, and the focus of the eyes is fixed on the screen, so the focus adjustment o...

AI Technical Summary

Problems solved by technology

However, the light emitted by the screen does not have depth information, and the focus of the eyes is fixed on the screen, so the focus adjustment of the eyes does not match the depth perception of the scene, resulting in a conflict of visual vergence adjustment

[0004] Specifically, such as figure 1 As shown, when humans look at real objects in the real world, the distance 1 corresponding to the axis adjustment is equal to the distance 2 corresponding to the focus adjustment. figure 1 As shown in the middle left figure, the dotted line represents the information module seen, that is, the left and right edges are blurred, while the middle is clear; while in the virtual reality scene, such as figure 1 As shown in the middle right figure, when humans use head-mounted devices to watch the scene, the distance 3 corresponding to the spoke axis adjustment is inconsistent with the distance 4 corresponding to the focus adjustment, namely figure 1 The visual vergence adjustment conflict shown in the middle right picture is contrary to the daily physiological laws of human beings, and will cause fatigue and dizziness in the human visual system

[0005] In the current augmented reality system, the transmission distance of the optical system used is always fixed, that is to say, the position of the focal point of the human eye is fixed, and the displayed image will allow the human eye to converge at different distances to produce a 3D depth of field , at this time, the distance of the focus adjustment and the distance of the radial axis adjustment are not equal, that is, the inconsistency between the focus adjustment and the vergence adjustment will cause visual convergence adjustment conflicts, resulting in unclear images and visual fatigue after wearing augmented reality equipment , dizziness

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