LED display screen free from moire

A technology of LED display and moiré, which is applied in the direction of instruments, identification devices, etc., can solve the problems of moiré and other problems in shooting LED displays, and achieve the effects of ensuring clarity and high contrast, eliminating the interference of moiré, and high-quality shooting effects

Inactive Publication Date: 2015-04-29
SHENZHEN AOTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a moiré-free LED display, aiming to solve the problem of moiré when shooting LED displays

Method used

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  • LED display screen free from moire
  • LED display screen free from moire
  • LED display screen free from moire

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0011] The specific realization of the present invention is described in detail below in conjunction with specific embodiment:

[0012] Please refer to figure 1 and figure 2 , the embodiment of the present invention provides a moiré-free LED display screen, which includes an LED lamp board 01, which is provided with a plurality of LED lamp beads 02, and the LED lamp beads 02 include RGB three-primary color chips. The LED lamp beads 02 are usually arranged in an array, and the LED display screen also includes a light diffusion structure 03 arranged on the light emitting side of the LED lamp pa...

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Abstract

The invention is fit for the technical field of LED (Light Emitting Diode) display and provides an LED display screen free from moire. The LED display screen free from moire comprises an LED lamp panel and a light diffusion structure, wherein a plurality of LED lamp beads distributed in an array are arranged on the LED lamp panel; the light diffusion structure is arranged on a light-emitting side of the LED lamp panel; the light diffusion structure comprises frames in an array form; the space is divided into a plurality of subspaces by the frames; a light diffusion medium is arranged in each subspace; the width of the top, far away from the LED lamp panel, of each frame is less than 0.3mm. According to the invention, the light diffusion structure is arranged on the light-emitting side of the LED lamp panel; the light emitted from the LED lamp beads forms a uniform area light source by passing through the light diffusion medium; the width of the top of each frame is extremely narrow, so that the periodicity of the pixel structure is weakened; when a CCD (Charge Coupled Device) or CMOS (Complementary Metal-Oxide-Semiconductor Transistor) array camera is used for shooting the LED display screen, no moire is generated; since each LED lamp bead corresponds to each subspace and different LED lamp beads are free from optical crosstalk, so that the contrast ratio of a picture is ensured.

Description

technical field [0001] The invention belongs to the technical field of LED display, in particular to an LED display screen without moiré. Background technique [0002] When shooting LED displays with cameras with CCD or CMOS arrays, there will be disturbing moiré. This is due to the interaction between the periodic structure of the CCD or CMOS array and the spatial frequency of the periodic pixel structure of the LED display, forming the moiré pattern displayed on the display after being shot by the camera. The traditional method to solve the moiré pattern of the LED display is to install a light-emitting film in front of the LED display to change the point light of the LED display into a surface light. This method can effectively eliminate the moiré, but it is a way of sacrificing the contrast. Solve the problem, because the light crossing between adjacent pixels is serious, the sharpness and contrast of the display screen of the LED display are reduced, and it looks foggy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33
CPCG09F9/33
Inventor 宋呈群叶祥国李选中刘玲吴振志吴涵渠
Owner SHENZHEN AOTO ELECTRONICS
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