Design method of slit grating for weakening moiré in led naked-eye 3D display

Abstract

The invention discloses a slit grating method design for weakening moire in LED glasses-free 3D display. The slit granting design method comprises the following three specific steps: firstly, measuring the width of each pixel light-emitting part and the width of each pixel non-light emitting party of the LED screen and calculating the parameters of the conventional vertical slit grating; secondly,determining the parameters of the light-transmitting strip and the light-blocking strip in the first cycle of the slit grating according to the pixel pitch of the LED screen and the width of the non-light emitting part of the pixel; thirdly, setting the light-transmitting strip and the light-blocking strip parameter in the second cycle of the slit grating, and repeating the two periodic structures until the slit grating formed by the two periodic structures is the same width as the LED screen. The slit grating design method increases the difference between the periodic structure of the slit grating, and the pixel periodic structure of the LED screen by appropriately increasing the width of the light-transmitting strip of the slit grating, and changing the geometric shape of the light-transmitting strip according to the non-light emitting part of the LED screen. The difference between the pixel periodic structures can weaken the moire without increasing the crosstalk of the stereoscopic image.

Description

[0001] 1. Technical field [0002] The present invention relates to the technical field of naked-eye 3D (three-dimensional) display, and more specifically, relates to a design method of a slit grating for weakening moiré in LED-based naked-eye 3D display. [0003] 2. Background technology [0004] When watching the slit grating naked-eye 3D display, the viewer can watch the stereoscopic image without wearing any visual aid equipment. With the maturity of the slit grating naked-eye 3D display technology in recent years, the slit grating naked-eye 3D display products with large size, high brightness, bright colors and no moiré have gradually become the goal pursued by people. Due to its large size, high brightness, and bright colors, the LED screen is suitable for large-screen display. However, for the conventional vertical slit grating, which arranges the light-transmitting strips parallel to the column pixels of the display screen, when the eyes see the non-luminous parts betw...

AI Technical Summary

Problems solved by technology

However, for the conventional vertical slit grating, which arranges the light-transmitting strips parallel to the column pixels of the display screen, when the eyes see the non-luminous parts between adjacent sub-pixels through the light-transmitting strips, they will generally see obvious The periodic bright and dark gradient stripes, that is, moiré, seriously affect the viewing effect

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