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Method for fitting five-primary-color LED mixed light source

A mixed light source and five-primary-color technology, which is applied in the field of fitting five-primary-color LED mixed light sources, can solve problems such as metamerism, and achieve the effect of solving metamerism problems

Active Publication Date: 2021-02-26
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a method for fitting five-primary-color LED mixed light sources to solve the problems in the prior art. Metamerism Problem Existing in Primary Color Mixed Light Source

Method used

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  • Method for fitting five-primary-color LED mixed light source
  • Method for fitting five-primary-color LED mixed light source
  • Method for fitting five-primary-color LED mixed light source

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Embodiment

[0056] In this embodiment, the five-primary color light mixing equation is mainly solved based on the Linprog optimization method to obtain the current duty ratio of the five channels under the maximum total luminous flux. Linprog is a function in Matlab specially used to deal with linear programming, and in Matlab, linear programming can only solve the minimum value of the objective function, so the constraint equation of the above-mentioned maximum luminous flux needs to add a negative sign to convert it into a minimum value function expression Mode:

[0057] f(Y) min =-D 1 Y 1 -D 2 Y 2 -D 3 Y 3 -D 4 Y 4 -D 5 Y 5

[0058] At the same time, Table 1 gives the RGBYC five primary color parameters, and Table 2 gives the main parameters of the target light source.

[0059] Table 1 Coordinates of five primary colors and tristimulus values

[0060]

[0061] Table 2 Relevant parameters of the target light source

[0062]

[0063] Taking the 6500K target light sour...

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Abstract

The invention discloses a method for fitting a five-primary-color LED mixed light source. The method comprises the following steps of S1, selecting the five-primary-color light source to be mixed; S2,determining spectral parameters of a target light source, and constructing a five-primary-color light mixing equation set by utilizing the spectral parameters of the selected five-primary-color lightsource and the determined spectral parameters of the target light source; S3, taking the total luminous flux of the five-primary-color synthetic light source as an optimal condition, and obtaining afive-channel current duty ratio under the maximum total luminous flux according to the constructed five-primary-color light mixing equation set; and S4, driving and controlling each corresponding primary color light source through a control circuit according to the obtained five-channel current duty ratio.

Description

technical field [0001] The invention relates to the technical field of LED (Light Emitting Diode, light emitting diode) display, in particular to a method for fitting five-primary-color LED mixed light sources. Background technique [0002] As people's requirements for color saturation and color brightness are getting higher and higher, the three-primary color mixed light source can no longer meet these requirements. An effective solution is to increase the number of primary colors. The three-primary color mixed light source is a triangle on the color gamut diagram, while the multi-primary color is a polygon. The multi-primary color mixing method can effectively expand the color gamut and increase the saturation of the color. Considering the implementation complexity and actual cost of the synthetic light source, the Chinese utility model patent with the publication number CN210039592U synthesizes five-primary-color LED light sources by adding cyan (C) and yellow (Y) light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/30H05B45/20H05B45/10
CPCH05B45/30H05B45/20H05B45/10Y02B20/40
Inventor 鲍建宇
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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