Monoblock double refraction image display device

Abstract

A monomer bireflection image display device which comprises a display unit to provide an image; first refractor set located by one side of said display unit; first reflector unit located by the same side with said display unit to the first reflector set; second reflector unit and second refractor set located by one side of said reflector and two virtual image forming lens set located separately by the other two sides of second reflector set. The image displayed in the display unit is refracted into a handstand image through first refractor set and then to be reflected to second refractor set through first reflector set and second reflector unit and is reflected into real image with identical direction with original image through said refractor set and is converted into a virtual image with identical direction with original image by virtual image forming lens.

Description

technical field [0001] The invention relates to a single birefringence image display device, especially an image display device suitable for glasses type or head mounted type. Background technique [0002] In recent years, various audio-visual equipment and display devices have been improved with each passing day. In addition to enhanced functions, thin, light, small, and portable displays are also the mainstream of display development. One of the emerging display devices is virtual reality (virtual reality) technology. The integration of various technologies, such as display technology, computer technology, sensory technology, and sound effect technology, reduces the original large-sized audio-visual equipment to a square inch and becomes a portable glasses-type projection display device. Although the general flat panel display is light in weight, its size is limited by material weight and cost, and it cannot achieve the effect of enlarging the image size and being easy to ...

AI Technical Summary

Problems solved by technology

Moreover, in the process of quickly adjusting the focus, a large amount of blood flowing through the microvessels around the eyeball will cause pressure on the eyeball. The high intraocular pressure caused by long-term and frequent adjustment of the focus will not only cause discomfort to the human eye, In severe cases, there may be a risk of retinal detachment! Therefore, if this kind of real image projection device is applied to a glasses-type display device, when the observation time (within a few hours) is prolonged, the intraocular pressure of the observer will increase, resulting in symptoms of dizziness and discomfort, and even severe retinal detachment. Therefore, it is not suitable for young children or those with heart disease or high blood pressure

However, if the real image is projected on the eyeball, if the magnification is to be increased, the distance between the projection lens group and the eyeball needs to be lengthened. In this way, if the image magnification is to be increased, the space occupied by the projection system needs to be increased, which is not practical. Not practical

[0004] In addition, when the user's head moves, the display device that forms a projected real image in the eyes will produce image blur or severe shaking due to ghosting and Doppler effect, so the display quality is not good, and the application field is not wide.

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