RGB-OLED high color rendering and high light efficiency light mixing optimization method

Abstract

The invention discloses an RGB-OLED (Red Green Blue-Organic Light Emitting Diode) high color rendering and high light efficiency light mixing optimization method. The method comprises the following steps: S1, acquiring preset isotherm feature points in a CIE defined white light range; s2, calculating a light mixing ratio and a lighting effect of the feature points based on RGB-OLED optical parameters; s3, performing optical simulation analysis in combination with the light mixing ratio theoretically calculated in the step S2, and calculating the color rendering properties of all feature points; and S4, carrying out optimal light mixing proportion analysis on all feature points of the isotherm based on the lighting effect in the step S2 and the color rendering calculated value in the step S3, and extracting an optimal proportion as an RGB-OLED light mixing parameter. The method has the beneficial effects that the traditional tedious optical theoretical calculation of the chromatic aberration of various color samples under the standard light source and the light source to be analyzed is replaced, and the algorithm optimization with high color rendering and high light efficiency is quickly and accurately optimized.

Description

Technical Field

[0001] The present invention relates to RGB-OLED light mixing, and in particular, to a method for optimizing RGB-OLED light mixing with high color rendering and high luminous efficiency. Background Art

[0002] The RGB-OLED light source for lighting obtains white light by the color mixing method, that is, by changing the ratio of the luminous fluxes (or brightness) of the three primary colors of red, green, and blue, and obtaining white light with the required color temperature and brightness according to Grassmann's law of color mixing. When mixing white light, there is a phenomenon of metamerism, that is, when observing the mixed white light emitted by the RGB-OLED light source with the human eye, the colors are the same, but the spectral combinations of the light mixing are different. Summary of the Invention

[0003] The purpose of the present invention is to provide a new method for optimizing RGB-OLED light mixing with high color rendering and high luminous efficiency in order to obtain the best spectral combination of the RGB-OLED light source for lighting.

[0004] In order to achieve the above purpose, a technical solution provided by the present invention is: a method for optimizing RGB-OLED light mixing with high color rendering and high luminous efficiency, including: Step S1, obtaining the preset isotherm characteristic points within the CIE-defined white light range.

[0005] Step S2, calculating the light mixing ratio and luminous efficiency of the RGB three primary colors of the characteristic points based on the RGB-OLED optical parameters, and taking the chromaticity value and the theoretically calculated light mixing ratio and luminous efficiency value as the characteristic point parameters.

[0006] Step S3, combining the theoretically calculated light mixing ratio in Step S2, performing optical simulation analysis, and calculating the color rendering properties of all the characteristic points.

[0007] Step S4, performing an analysis of the optimal light mixing ratio of all the characteristic points on the isotherm based on the luminous efficiency in Step S2 and the calculated color rendering property value in Step S3, and extracting the best ratio as the RGB-OLED light mixing parameter.

[0008] As a preferred solution of the method for optimizing RGB-OLED light mixing with high color rendering and high luminous efficiency, in Step S1, the characteristic points are selected from at least one of the intersection points of the Planck curve and the isotherm, the intersection points of the typical sunlight and the isotherm, the intersection points of the upper limit of the CIE white light range and the isotherm, and the intersection points of the lower limit of the CIE white light range and the isotherm.

[0009] As a preferred solution of the method for optimizing RGB-OLED light mixing with high color rendering and high luminous efficiency, in Step S3, an RGB-OLED light source digital model is established in the SPEOS software, and the chromaticity design analysis module is used for optical simulation to calculate the color rendering properties of all the characteristic points on the isotherm.

[0010] As an optimized solution of the RGB-OLED high color rendering and high luminous efficacy mixing method, in step S4, the color rendering and luminous efficacy for evaluating the light quality of the mixed white light are used as important indicators for analyzing the optimal mixing ratio of all characteristic points of the isotherm, and finally the RGB-OLED mixing parameters are formed.

[0011] Compared with the prior art, the beneficial effects of the present invention are at least as follows: In this method, a digital model of the RGB-OLED light source is established in the optical software SPEOS, and then a chromaticity design analysis module that conforms to the human eye color vision characteristics is used for traversal simulation optimization to obtain the optimal mixing ratio combination of the three primary colors of RGB-OLED at a preset color temperature. This algorithm optimization technology replaces the traditional cumbersome optical theoretical calculation of the color difference of multiple color samples under two light sources (including standard light sources and light sources to be analyzed), and realizes the rapid and accurate optimization of the high color rendering and high luminous efficacy color mixing ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a flowchart of the method of the present invention.

[0013] Figure 2 It is a schematic diagram of an isotherm that meets the requirements of CIE white light. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] Please refer to Figure 1 , which shows an RGB-OLED high color rendering and high luminous efficacy mixing method. The RGB-OLED high color rendering and high luminous efficacy mixing method specifically includes: Step S1, obtaining the characteristic points of the preset isotherm within the CIE-defined white light range. Please refer to Figure 2 , and the characteristic points are such as the intersection points of the Planck curve and the isotherm, the intersection points of the typical sunlight and the isotherm, the intersection points of the upper limit of the CIE white light range and the isotherm, the intersection points of the lower limit of the CIE white light range and the isotherm, etc.

[0016] Step S2, calculating the mixing ratio and luminous efficacy of the three primary colors R, G, and B of the characteristic points based on the RGB-OLED optical parameters (such as chromaticity values, luminous fluxes).

[0017] Step S3: Combine the mixing ratio calculated theoretically in Step S2, and perform optical simulation analysis through the chromaticity design analysis module of SPEOS software to calculate the color rendering properties of all feature points. In SPEOS software, establish the digital models of the light source and the spectral radiation detector, and perform optical simulation using the chromaticity design analysis module based on the theoretically calculated mixing ratio to obtain the color rendering index of the feature points.

[0018] Step S4: Based on the luminous efficacy obtained in Step S2 and the color rendering property obtained in Step S3, perform an analysis of the optimal mixing ratio of all feature points on the isotherm, and extract the optimal ratio as the RGB-OLED mixing parameter. Use the color rendering property and luminous efficacy for evaluating the optical quality of the mixed white light as important indicators for analyzing the optimal mixing ratio of all feature points on the isotherm, and finally form the RGB-OLED mixing parameter.

[0019] Among them, SPEOS software is a powerful professional lighting and optical environment simulation and ergonomic analysis system tool developed by OPTIS Corporation of France, which is used for optical design, environment and vision simulation, imaging simulation, and visual ergonomics analysis system applications.

[0020] The above only expresses the implementation modes of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An RGB-OLED high color rendering property and high luminous efficiency mixed light optimization method, characterized in that, Including: Step S1: Obtain the preset isotherm characteristic points within the CIE-defined white light range; Step S2: Calculate the mixing ratio and luminous efficacy of the three primary colors RGB of the characteristic points based on the optical parameters of the RGB-OLED; Step S3: Combine the mixing ratio theoretically calculated in Step S2 to conduct optical simulation analysis and calculate the color rendering property of all characteristic points; and Step S4: Conduct an analysis of the optimal mixing ratio of all characteristic points on the isotherm based on the luminous efficacy in Step S2 and the calculated value of the color rendering property in Step S3, and extract the optimal ratio as the RGB-OLED mixing parameter.

2. The RGB-OLED high color rendering property and high luminous efficiency mixed light optimization method according to claim 1, characterized in that In Step S1, the characteristic points are selected from at least one of the intersection points of the Planck curve and the isotherm, the intersection points of the typical sunlight and the isotherm, the intersection point of the upper limit of the CIE white light range and the isotherm, and the intersection point of the lower limit of the CIE white light range and the isotherm.

3. The RGB-OLED high color rendering property and high luminous efficacy mixed light optimization method according to claim 1, characterized in that In Step S3, establish a digital model of the RGB-OLED light source in the SPEOS software, and use the chromaticity design analysis module to conduct optical simulation to calculate the color rendering values of all characteristic points on the isotherm.

4. The RGB-OLED high color rendering property and high luminous efficacy mixed light optimization method according to claim 1, characterized in that In Step S4, the color rendering property and luminous efficacy for evaluating the light quality of the mixed white light are used as important indicators for analyzing the optimal mixing ratio of all characteristic points on the isotherm, and finally, the RGB-OLED mixing parameter is formed.

Images