Optical module and head-mounted type display device

Abstract

The invention discloses an optical module and a head-mounted type display device. The optical module comprises a module shell, and a left lens cone mechanism, a right lens cone mechanism, a left pupil distance adjusting mechanism and a right pupil distance adjusting mechanism which are arranged in the module shell. The left lens cone mechanism comprises a left lens cone assembly and a left display screen arranged behind the left lens cone assembly and connected with the left lens cone assembly. The right lens cone mechanism comprises a right lens cone assembly and a right display screen arranged behind the right lens cone assembly and connected with the right lens cone assembly. The left pupil distance adjusting mechanism is connected with the left lens cone assembly and used for driving left lens cone mechanism to move left and right. The right pupil distance adjusting mechanism is connected with the right lens cone assembly and used for driving the right lens cone mechanism to move left and right. The optical module adjusts the left eye pupil distance and the right eye pupil distance through the left pupil distance adjusting mechanism and the right pupil distance adjusting mechanism respectively, and therefore a user can see an image more clearly with two eyes through the left lens cone assembly and the right lens cone assembly; the centers of the left lens cone assembly, the right lens cone assembly, the left display screen and the right display screen can not change.

Description

technical field [0001] The invention relates to the field of display devices, in particular to an optical module and a head-mounted display device. Background technique [0002] With the development of technology and people's increasing demand for multimedia video, commonly used multimedia playback devices need to be used with an external LED or LCD display, because the pixels and size of the image displayed on the external display are limited by the size of the display and Visual effects cannot meet people's needs, and head-mounted displays have emerged as the times require. A head-mounted display (HMD for short) is an optical product for stereoscopic vision display. It is a signal with a three-dimensional effect of binocular parallax, which is sequentially transmitted through the display elements and optical lenses arranged in front of the eyes. It is sent to both eyes to produce a three-dimensional and large-size image. The head-mounted display device is usually applied...

AI Technical Summary

Problems solved by technology

The existing viewing distance adjustment assembly can only adjust the viewing distance of the left lens barrel assembly and the right lens barrel assembly synchronously. The viewing distance will lead to different clarity of the image seen by the left eye and right eye when the user watches the image through the optical module, which will affect the visual experience

During the pupillary distance adjustment process of the existing pupillary distance adjustment mechanism, the left lens barrel assembly and the right lens barrel assembly relatively move with respect to the effective display screen of the display screen, resulting in the optical centers of the left lens barrel assembly and the right lens barrel assembly being aligned with each other. The display center of the display screen changes, which affects the display effect of the images displayed by the left lens barrel assembly and the right lens barrel assembly

Moreover, the existing interpupillary distance adjustment mechanism can only synchronously adjust the distance between the left lens barrel assembly and the right lens barrel assembly, and cannot individually adjust the positions of the left lens barrel assembly and the right lens barrel assembly according to the state of the wearer's interpupillary distance.

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