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Method for adjusting best viewing distance of naked eye 3D display

A 3D display and viewing distance technology, applied in the optical field, can solve the problems of cumbersome adjustment, high lens cost, and small improvement of the optimal viewing distance, etc., to achieve the effect of large improvement, simple and easy adjustment process, and low cost.

Active Publication Date: 2015-08-19
NINGBO VISION DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that in the prior art, when increasing the optimal viewing distance of a naked-eye 3D display by increasing the number of viewpoints, the optimal viewing distance is increased by a small amount, and the cost of using a variable focal length lens is high and the adjustment is too cumbersome. provides a method to adjust the best viewing distance of naked-eye 3D displays

Method used

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  • Method for adjusting best viewing distance of naked eye 3D display
  • Method for adjusting best viewing distance of naked eye 3D display
  • Method for adjusting best viewing distance of naked eye 3D display

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specific Embodiment approach 1

[0029] Specific implementation mode one: the following combination Figures 4 to 8 Describe this embodiment, the method for adjusting the best viewing distance of a naked-eye 3D display described in this embodiment, the naked-eye 3D display is a cylindrical lens grating naked-eye 3D display with a player whose parameters have been determined, and the method is:

[0030] Step 1. Select the angle β of the derived lens, the derived lens is the derived lens of the original cylindrical lens, and the angle β needs to ensure that a clear picture (2D picture) can be obtained;

[0031] Step 2, adjusting the arrangement of the composite image in the player according to the value of -β, this step can be realized by using the existing technology;

[0032] Step 3. Adjust the arrangement order of the pixels of the synthesized image to be opposite to the original one. So far, the best viewing distance obtained is Among them, D is the best viewing distance before adjustment, m is the number...

specific Embodiment approach 2

[0037] Specific implementation mode two: the following combination Figure 9 and Figure 10 Describe this embodiment. This embodiment is a further limitation of the method for adjusting the best viewing distance of a naked-eye 3D display described in Embodiment 1. In this embodiment, the method for selecting the angle β of the derivative lens described in Step 1 is:

[0038] Step one, according to Calculate the qualified n value one by one, 2≤m≤9, 2≤n≤9, a is the sub-pixel width, and x is a positive integer multiple of a, α is the original cylindrical lens angle;

[0039] Step 12. Substitute the obtained n value into the formula , calculate the value of β.

[0040] Adjust on the naked-eye 3D display with a lenticular lens grating with a player whose parameters have been determined, and define the inherent parameters: the original lenticular lens angle α (with a vertical line as the zero scale, and the lenticular lens direction is defined as a negative value from upper left...

specific Embodiment approach 3

[0060] Embodiment 3: This embodiment is a further limitation of the method for adjusting the best viewing distance of the naked-eye 3D display described in Embodiment 2. This embodiment takes the WZ46-inch naked-eye 3D display as an example to adjust its best viewing distance.

[0061] The original cylindrical lens angle is -18.4349°, that is The number of overlay images is n=8, the pixel arrangement order is BGR, the disparity images are arranged from left to right, and the viewing distance is 3m.

[0062] Substituting the value of n into formula (3) gives: According to m, it must be greater than or equal to 2 and less than or equal to 9, so

[0063] When x=a, m=1.14, the conditions are not met;

[0064] When x=2a, m=2.66667, meet the conditions;

[0065] When x=3a, m=4.8, meet the conditions;

[0066] When x=4a, m=8, meet the conditions;

[0067] When x=5a, m=13.3333 does not meet the conditions;

[0068] When x=6a, m=24 does not meet the conditions;

[0069] When x...

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Abstract

A method for adjusting the best viewing distance of a naked eye 3D display relates to the adjustment technology for the best viewing distance of the naked eye 3D display and solves problems that the increase amplitude of the best viewing distance is small, the cost is high and the adjustment is tedious in the conventional adjusting method. The method is characterized in that an angle [beta] of a derivative lens is firstly selected, wherein the derivative lens is a derivative lens of an original cylindrical lens, and the angle [beta] is required to guarantee acquisition of a clear 2D picture; then an arrangement mode of composite graphs in a player is adjusted according to the value of -[beta], a pixel arrangement sequence is adjusted into a reverse order, and a parallax graph reading sequence of the player is adjusted into a reverse order. With the adoption of the method provided by the invention, the best viewing distance of the naked eye 3D display can be doubled or further by adjustment while a lens with a variable focal length is not required, the cost is low, and the adjustment process is simple to operate. The method is suitable for adjusting the best viewing distance of the naked eye 3D display.

Description

technical field [0001] The invention relates to a technology for adjusting the best viewing distance of a naked-eye 3D display, and belongs to the field of optics. Background technique [0002] Glasses-free 3D display utilizes the parallax characteristic of human eyes to obtain a realistic three-dimensional display system with space and depth without any auxiliary equipment (such as 3D glasses, helmets, etc.). It is also composed of four parts: 3D stereoscopic reality terminal, playback software, production software, and application technology. It is a cross-dimensional reality system that integrates modern high-tech technologies such as optics, photography, computer, automatic control, software, and 3D animation production. [0003] Things in the glasses-free 3D display can protrude from the screen, or can be hidden deep in the screen. Colorful, distinct, vivid and lifelike, it is a three-dimensional image in the true sense. Glasses-free three-dimensional images are favor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22
CPCG02B30/27
Inventor 邓庆顾开宇戴琼海
Owner NINGBO VISION DISPLAY TECH
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