Head-mounted display equipment

Abstract

The invention provides head-mounted display equipment in order to adjust the positions of effective display areas of display modules according to the positions of the pupils of a user and improve theadjustment convenience. The head-mounted display equipment comprises a frame and two display modules arranged on the frame. The two display modules are arranged corresponding to the two eyes of a userrespectively. Each display module comprises a display screen, a free-form surface lens and an adjusting mechanism, wherein the display screen is assembled on the frame in a sliding mode in a first direction, the free-form surface lens at least comprises a first optical surface corresponding to one eye of a user, the free-form surface lens is used for guiding light emitted by the display screen and projecting the light to the first optical surface so as to form an effective display area on the first optical surface, the adjusting mechanism is connected with the display screen and used for driving the display screen to slide so as to adjust the position of the effective display area on the first optical surface, and the first direction is the arrangement direction of the free-form surface lenses of the two display modules.

Description

technical field [0001] The present application relates to the field of augmented reality technology, and in particular to a head-mounted display device. Background technique [0002] Augmented reality (augmented reality), referred to as AR, is a technology that calculates the position and angle of the camera in real time and adds the corresponding image technology, puts the virtual world on the screen and interacts with the real world. Physical information that is difficult to experience within a certain time and space range, through computer and other science and technology, simulates and then superimposes, applies virtual information to the real world, and is perceived by human senses, so as to achieve a sensory experience beyond reality. [0003] At present, free-form surface display technology has been widely used in the field of AR head-mounted display devices. The use of free-form surface lenses can improve the limited field of view of display devices to a certain exte...

AI Technical Summary

Problems solved by technology

Due to the positive correlation between the size of the exit pupil area and the thickness of the free-form surface lens, the exit pupil area of ​​the existing display devices using the free-form surface lens is relatively small, and the exit pupil area is adjusted according to the user's interpupillary distance during design It is difficult to realize the display device, so it is not conducive to adapt the display device to the wearing needs of user groups with different interpupillary distances; changes, the existing display devices are difficult to ensure that the user's pupils always fall within the exit pupil area

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