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LED display screen moire-eliminating and color-mixing face cover

A technology of LED display and moiré pattern, which is applied in the field of optical accessories, can solve the problem of no elimination of moiré pattern on the mask

Inactive Publication Date: 2015-12-16
厦门科安技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to eliminate the moiré phenomenon, the industry installs a mask on the LED display unit module, but the traditional mask has no effect on eliminating the moiré

Method used

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  • LED display screen moire-eliminating and color-mixing face cover
  • LED display screen moire-eliminating and color-mixing face cover
  • LED display screen moire-eliminating and color-mixing face cover

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Embodiment Construction

[0023] Such as figure 1 , figure 2 As shown, the present invention is a color-mixing mask for eliminating moiré pattern of an LED display screen, which is composed of a mask bottom plate 1 and a plurality of color-mixing devices 2 .

[0024] The mask bottom plate 1 has a plurality of slots 11 in a grid shape, corresponding to the grid structure of the light-emitting points of the LED display screen. The plurality of color mixing devices 2 are respectively embedded in the slots 11 on the base plate 1 of the mask. Mask bottom plate 1 also can be honeycomb.

[0025] to combine Figure 5 As shown, the material of the mask bottom plate 1 is PC+10%GF; pure black black masterbatch, anti-UV agent and flame retardant are added, and the flame retardant grade is 94-V0. This material has strong deformation resistance, good flatness, is not easy to fission, and can effectively affect the influence of temperature changes on the material. Mask base plate 1 produces different dot...

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Abstract

The invention discloses an LED display screen moire-eliminating and color-mixing face cover which is composed of a face cover bottom plate and a plurality of color mixing devices. A plurality of embedment grooves are formed in the face cover bottom plate. The color mixing devices are embedded in the embedment grooves in the face cover bottom plate. Due to the fact that the non-luminance areas between LED display screen luminance points are all covered with the face cover, after an LED display screen is turned on, light absorbing, light filtering, color mixing, scattering and other processing are conducted on light emitted by the luminance points through the color mixing devices, color-mixed light is scattered on the surfaces of all the color mixing devices, and therefore the non-luminance areas of the LED display screen all become luminance areas, and the luminance areas and light mixing areas of LED tube cores are enlarged. The luminance points form continuous light on the surfaces of the color mixing devices after color mixing and scattering are conducted on light through the color mixing devices, and therefore the grid structure and granular sensation of the luminance points are eliminated, the moire interference to LED display images shot by a digital camera or a camera is eliminated, and the moire eliminating effect is good.

Description

technical field [0001] The invention relates to an optical accessory, in particular to an LED display screen color-mixing mask for eliminating moiré patterns. Background technique [0002] As a rapidly developing display medium, LED display has been widely used in various industries. Especially as a video display, the LED display screen has become the first choice of the majority of users for the image promotion of enterprises and institutions and the release of information in public places with its modern attitude. There is also a serious problem when the LED display is used, that is, the moiré phenomenon. Moiré refers to irregular interference fringes that appear on the photosensitive devices of digital cameras or digital video cameras. When the spatial frequency of the CCD / CMOS pixel of the photosensitive element is close to the spatial frequency of the stripes in the image, moiré will occur. The problem of the pixel pitch of the LED display, and the moiré phenomenon c...

Claims

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Application Information

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IPC IPC(8): G09F9/33
Inventor 庄偲浛李辰昊薛洪依蒙
Owner 厦门科安技术开发有限公司
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