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Glasses-free 3D joint wall jointing method

A splicing wall, 3D technology, applied in the optical field, to achieve the effect of reducing the difficulty of splicing and facilitating transportation and installation

Active Publication Date: 2015-01-07
NINGBO VISION DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problems existing in the splicing method of the traditional large display screen, and to provide a splicing method for naked-eye 3D splicing walls

Method used

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  • Glasses-free 3D joint wall jointing method
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  • Glasses-free 3D joint wall jointing method

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Experimental program
Comparison scheme
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specific Embodiment approach 1

[0038] Specific embodiment one: the following combination Figure 5 to Figure 7 Describe this embodiment, a naked eye 3D video wall splicing method described in this embodiment, the method includes the following processes:

[0039] Step 1. Arrange N×M independent display modules in a matrix A = L 11 L 12 L 1 M L 21 L 22 L 2 ...

specific Embodiment approach 2

[0053] Specific embodiment two: the following combination Figure 9 to Figure 11 This embodiment is described. This embodiment further describes Embodiment 1. In step 2, the grating parameters α of N×M independent display modules are obtained. nm and R nm , and adjust the parameter S nm The process is:

[0054] Step 21. Obtain the independent display module L 11 The grating parameter α of 11 and R 11 , and set the independent display module L 11 The tuning parameter S 11 = 0;

[0055] Get the independent display module L 11 The grating parameter α of 11 and R 11 The process is:

[0056] Will be independent display module L 11 Factory grating parameter α 0 and R 0 As the initial value of the raster parameter, with a weight of 0.001 to α 0 and R 0 Add or subtract until adjusted to be able to view the independent display module L at the optimum viewing distance 11 When there are nine viewpoint images, the following standards are met: the left eye sees the image o...

specific Embodiment approach 3

[0061] Embodiment 3: This embodiment further describes Embodiment 2, and the optimal viewing distance is D±20cm, where D is according to the formula

[0062] D = a 2 tan ( arcsin ( n 0 sin ( src tan ( Q ( n 0 - 1 ) 8 ...

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Abstract

A glasses-free 3D joint wall jointing method belongs to the optical field. The invention aims to solve a problem existing in a jointing method for a traditional large display screen. The method provided by the invention comprises: (1) N*M independent display modules are arranged according to a matrix pattern to form a joint wall, and each module is provided with four borders; (2) grating parameters and adjustment parameters of each module are obtained, so that the angle of a black-and-white test pattern displayed by each module is consistent; (3) a coordinate system is built by taking the left upper corner of the joint wall as an original point, steps (4)-(7) are performed, any one address (x,y) on the joint wall is traversed, and information of a color which should be displayed by a pixel at the address is determined; (4) whether the address (x,y) is in a border area is judged, step (5) is performed if the address (x,y) is in the border area, and step (6) is performed if the address (x,y) is not in the border area; (5) the address (x,y) does not call image information of a present frame; (6) a viewpoint NV belonging to the address (x,y) is obtained; and (7) according to the obtained viewpoint NV belonging to the address (x,y), the information of the color should be displayed by the pixel at the address (x,y) is obtained by adopting bilinear interpolation.

Description

technical field [0001] The invention relates to a large display screen splicing method, which belongs to the field of optics. Background technique [0002] The so-called autostereoscopic display technology means that the audience can freely and clearly watch the stereoscopic image on the screen with the naked eye at multiple positions within a large angle without any auxiliary equipment (such as polarized glasses, head-mounted display, etc.). Implementation methods are as follows: figure 1 The autostereoscopic display technology based on the lenticular grating shown and such as figure 2 The parallax barrier-based autostereoscopic display technology shown. Autostereoscopic display technology based on lenticular grating: the image plane of the liquid crystal screen is located on the focal plane of the lens, and the pixels of the image under each cylindrical lens are divided into several sub-pixel directions for projection, so the two eyes view the display screen from differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N13/04
Inventor 蒋香锋顾开宇
Owner NINGBO VISION DISPLAY TECH
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