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Moire-fringe-free 3D-LED display system

A 3D-LED, display system technology, applied in optics, instruments, optical components, etc., can solve the problems of loss, affecting the effect of stereoscopic display, affecting the viewing effect of stereoscopic display, etc., and achieve the effect of eliminating moire fringes

Active Publication Date: 2014-09-24
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 For the existing LED screen structure (including LED pixel point 001 and black matrix 002), we can see that there is a large proportion of black matrix in the existing LED screen, and in the 3D-LED stereoscopic display system, due to the black matrix and slits The light-shielding area of ​​the grating forms moire fringes, which affects the viewing effect of the stereoscopic display
[0003] In the existing slit grating 3D-LED stereoscopic display system, due to the blocking of the slit grating light-shielding area, a large part of the light is blocked and not used and lost
At the same time, one of the existing methods to solve the 3D-LED moiré fringe is to change the black matrix into a white matrix, and the moiré fringe problem is solved to a certain extent, and then the contrast of the entire LED display becomes worse
[0004] To sum up, in view of the existing 3D-LED stereoscopic display system mainly having the moiré fringe problem which affects the stereoscopic display effect, it is meaningful to propose a method to solve the 3D-LED moiré fringe

Method used

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Examples

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no. 1 example

[0045] like figure 2 A 3D-LED display system without moiré fringes provided by the first embodiment of the present invention includes: a 2D display screen (011) (the 2D display screen (011) includes a brightness enhancing film arranged on a black matrix (0112) (0113)), a spectroscopic grating (012), and a reflection plane mirror (013) arranged on the back of the spectroscopic grating and between the 2D display screen (011) and the spectroscopic grating (012). like figure 2 As shown, the spectroscopic grating includes two parts: a light-transmitting area (0122) and a light-shielding area (0121), and a reflection mirror (013) is arranged on the back of the light-shielding area (0121).

[0046] In this embodiment, the reflector (013) is a specular emission, and the LED pixel (0111) light source, part of which is directly emitted from the light-transmitting area (0122) of the grating, and split into left and right images enters the human eye, and the other part of the light sou...

no. 2 example

[0048] like image 3 A 3D-LED display system without Moiré fringes provided by the second embodiment of the present invention includes a 2D display screen (021) (the 2D display screen (021) includes a brightness enhancing film (0213) arranged on a black matrix (0212) )), the spectroscopic grating (022), and the diffuse reflection film (023) arranged on the back of the spectroscopic grating (022). Paste on the back of the spectroscopic grating (022).

[0049] In the specific implementation process of this embodiment, part of the light source of the LED pixel point (0211) is modulated by the spectral grating to generate the left and right images, and the observer can obtain a three-dimensional effect, and the other part of the light is diffusely reflected to illuminate the black matrix of the LED display ( 0212) (eg image 3 The optical path in ①→②→③).

[0050] In this embodiment, the so-called black matrix (0212) does not represent its color is black, but a concept represent...

no. 3 example

[0052] like Figure 4 A 3D-LED display system without Moiré fringes provided by the third embodiment of the present invention includes a 2D display screen (031), (the 2D display screen (031) includes a brightness enhancement film arranged on a black matrix (0312) ( 0313)), a spectroscopic grating (032), and a concave mirror (033) arranged on the back of the spectroscopic grating.

[0053] like Figure 5 As shown, the light from the LED pixel hits the concave mirror (033), and after reflection, it projects on the LED pixel (0311) and the black matrix (0312), and passes through the brightness enhancing film (0313) set on the black matrix (0312) Light up the black matrix (0312), people outside the grating will see the bright light at the corresponding position of the black matrix, and when the black matrix disappears, the moiré fringes will also disappear. The brightness enhancing film (0313) in the preferred embodiment of the present invention is preferably a frosted acrylic p...

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Abstract

The invention relates to a moire-fringe-free 3D-LED display system which comprises a 2D display screen, a spectro-grating and a reflection external member arranged on the back side of the spectro-grating and between the 2D display screen and the spectro-grating. A part of pixels on the 2D display screen are emitted to human eyes through the spectro-grating, the other part of the pixels of the 2D display screen are reflected to a black matrix on the 2D display screen through the reflection external member on the back side of the spectro-grating, and the black matrix is illuminated and disappears. The display system has the remarkably advantages that light which should be blocked and absorbed is reflected to the black matrix, the black matrix is illuminated, and moire fringes generated due to cyclic distribution of the spectro-grating and a black matrix array are reduced or eliminated.

Description

technical field [0001] The invention relates to the field of 3D stereoscopic display, in particular to a 3D-LED display system without moiré fringes. Background technique [0002] Stereoscopic display has attracted more and more attention due to its realistic stereoscopic display, and naked-eye stereoscopic 3D display based on large LED screens has been developed, including slit grating 3D-LED and cylindrical lens grating 3D-LED. figure 1 For the existing LED screen structure (including LED pixel point 001 and black matrix 002), we can see that there is a large proportion of black matrix in the existing LED screen, and in the 3D-LED stereoscopic display system, due to the black matrix and slits Moiré fringes are formed in the light-shielding area of ​​the grating, which affects the viewing effect of the stereoscopic display. [0003] In the existing 3D-LED stereoscopic display system of the slit grating, due to the blocking of the shading area of ​​the slit grating, a large...

Claims

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Application Information

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IPC IPC(8): G09F9/33G02B27/22
Inventor 张永爱郭太良周雄图叶芸林锑杭林婷
Owner FUZHOU UNIVERSITY
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