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Method for improving lighting effect of LED light guide plate lamp box and LED light guide plate lamp box

A light guide plate and light box technology, which is applied in the direction of optical elements, light sources, and light source fixation used to change the spectral characteristics of emitted light, can solve the problems of large light loss and low light efficiency, and reduce light loss and increase outgoing light , Improve the effect of brightness

Inactive Publication Date: 2020-06-05
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of large light loss and low light efficiency when using the prior art to display color pictures, the present invention provides a method for improving the light efficiency of the LED light guide plate light box, which can reduce light loss

Method used

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  • Method for improving lighting effect of LED light guide plate lamp box and LED light guide plate lamp box
  • Method for improving lighting effect of LED light guide plate lamp box and LED light guide plate lamp box
  • Method for improving lighting effect of LED light guide plate lamp box and LED light guide plate lamp box

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] figure 1 It shows a method for improving the light efficiency of an LED light guide plate light box provided by an embodiment of the present invention. Specifically, the method includes:

[0039] Get the picture to be displayed;

[0040] Cut the picture to be displayed by color and divide it into multiple small area monochrome pictures;

[0041] Calculate the radius of each diffusion point in each small area;

[0042] Obtain the grayscale value of ea...

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Abstract

The invention relates to the field of advertising lamp boxes. The invention particularly relates to a method for improving the lighting effect of an LED light guide plate lamp box. The method comprises the steps of obtaining a to-be-displayed picture, cutting the to-be-displayed picture according to colors, dividing the to-be-displayed picture into a plurality of small-area single-color pictures,calculating the radius of each diffusion point in each small area, obtaining the gray-scale value of each small area, calculating the distance between the diffusion points in each small area, and filling the diffusion points with fluorescent powder according to the color of each small area. The intervals of the diffusion points are set according to the gray-scale values of the to-be-displayed pictures, and the types and proportions of the fluorescent powder in the diffusion points are set according to the colors of the to-be-displayed pictures, so that the light loss can be reduced, and the energy-saving effect is achieved.

Description

technical field [0001] The invention relates to the field of advertising light boxes, in particular to a method for improving the light efficiency of an LED light guide plate light box and the LED light guide plate light box. Background technique [0002] The LED light guide plate light box has the characteristics of energy saving, ultra-thin, convenient, uniform light, etc., so it is widely used. [0003] At present, the light source of the traditional LED light guide plate light box adopts white light source, and then the picture to be displayed is covered on the light box. When the picture to be displayed is in color, the picture will absorb light other than the color of the picture, that is, all areas of the picture to be displayed will absorb Part of the light in the light guide plate leads to a large loss of light, resulting in low light efficiency of the LED light guide plate light box. Contents of the invention [0004] In order to solve the problems of large ligh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/90G09F13/04F21V9/32F21V9/45F21V19/00F21Y115/10
CPCF21V9/32F21V9/45F21V19/001F21Y2115/10G06T7/90G09F13/04
Inventor 饶丰袁帅宋苏慧邱雅蓉谢陈佑
Owner CHANGZHOU INST OF TECH
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