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Head mounted display device and backlight apparatus thereof

A backlight device and head-mounted technology, which is applied in light guides, optics, instruments, etc., can solve problems such as power consumption and backlight beam brightness limitation, and achieve the effect of reducing power consumption and improving brightness

Inactive Publication Date: 2020-10-09
HTC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no matter which generation method is used, each light beam projected by the existing backlight device is scattered in a large range and projected at a relatively large viewing angle.
As a result, the brightness provided by the existing backlight beams is limited
If an image beam with sufficient brightness is to be generated, it is necessary to increase the drive current of the backlight device, resulting in power consumption

Method used

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  • Head mounted display device and backlight apparatus thereof
  • Head mounted display device and backlight apparatus thereof
  • Head mounted display device and backlight apparatus thereof

Examples

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Embodiment Construction

[0042] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or like parts.

[0043] Please refer to figure 1 , figure 1 A schematic diagram of a backlight device according to an embodiment of the present invention is shown. The backlight device 100 includes a light guide assembly 110 , a light source 120 and a prism structure 130 . In this embodiment, the backlight device 100 is a side-lit backlight device. The light source 120 is disposed on a side of the light guide assembly 110 . The light source 120 generates source beams LS1 , LS2 and transmits the source beams LS1 , LS2 into the light guide assembly 110 . The light guide assembly 110 makes the source light beams LS1, LS2 reflect one or more times, and the light beams LS1' and LS2' are emitted from the first ...

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Abstract

The invention discloses a head mounted display device and a backlight apparatus thereof. The backlight apparatus is adapted for the head mounted display device. The backlight apparatus includes a light guiding component, a light source, and a prism structure. The light source is disposed on a side of the light guiding component. The prism structure has a first surface adjacent to a first surface of the light guiding component. There are a plurality of convex pyramids on the first surface of the prism structure. The pyramids are arranged in an array.

Description

technical field [0001] The present invention relates to a head-mounted display and its backlight device, and in particular to a head-mounted display and its backlight device capable of providing collimated backlight beams. Background technique [0002] With the advancement of electronic technology, it has become a trend to provide high-quality vision systems in electronic devices. In recent years, high-quality stereoscopic image virtual reality and augmented reality display technologies applied to head-mounted displays have become a new trend. [0003] The head-mounted display can generate light beams through the backlight device, and cooperate with the display panel to generate image beams, and project the image beams to users to produce visual effects. In the prior art, the light beam generation methods of the backlight device can be divided into direct type and side type. However, regardless of the generation method, each light beam projected by the existing backlight d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B6/0053G02B2027/0118
Inventor 蔡育根杨博森万湘庭陈宇恒丁领亿
Owner HTC CORP
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