High-definition glasses-free 3D display optical path

Abstract

The invention discloses a high-definition glasses-free 3D display optical path which comprises a left display optical path and a right display optical path. The high-definition glasses-free 3D display optical path is structurally characterized in that the left display optical path and the right display optical path are respectively provided with a lens, a reflector and a display screen; the field-of-view (theta1) of the light incoming surface of the lens is 18-22 DEG; the field-of-view (theta2) of the light emergent surface of the lens is 40-55 DEG; the distance of exit pupil of the lens is 50-70 millimeters; the focal length f of the lens is 100-150 millimeters; the length of the lens is L(lens); the width of the lens is W(lens); the length of the display screen is L(display); the width of the display screen is W(display); the distance between the lens and the optical axis crossing point of the reflector is L1; and the distance between the optical axis crossing point of the reflector and the middle point of the display screen is L2. According to the high-definition glasses-free 3D display optical path, in viewing of a user, the head can move in a vertical direction and a horizontal direction for viewing. Furthermore the high-definition glasses-free 3D display optical path has advantages of glasses-free viewing, reasonable structure design, small size, high definition, large angle-of-view, etc.

Description

technical field [0001] The invention relates to the technical field of 3D display, in particular to a high-definition naked-eye 3D display optical path capable of watching 2D / 3D pictures, audio and video and games with naked eyes. Background technique [0002] As we all know, major home appliance manufacturers around the world are also actively planning to launch a series of home appliances such as players and TVs that support 3D stereoscopic display. However, due to poor stereoscopic effects, none of them can become the mainstream of the market. brought huge business opportunities. The optical lens has the function of high-definition magnification observation, and its focal length is a fixed value after the production is completed, and the lens is guaranteed not to shift as much as possible during use. The demand in various industries is very large. In case of broken, how to protect the lens so that the life of the lens is longer, the history of 3D stereoscopic display is ...

AI Technical Summary

Problems solved by technology

[0007] 1. The 4:3 LCD display and the convex lens with a diameter of 4cm do not match the light shape, and you will see parts other than the screen, which will affect the viewing effect

[0008] 2. The screen resolution is only 640*480, only a single LCD display is used, and after the left and right are divided into half, the resolution is halved again, the definition is lower, the brightness and contrast are also lower, so it does not have high-definition effect

[0009] 3, 4-inch LCD display and convex lens with a focal length of 18cm, the screen viewed by the viewer is small, so it does not have the effect of viewing a large screen

[0011] 5. There is no light barrier between the left and right lenses and the screen, and the light will alternate with each other, making the image quality uneven

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