小电流LED屏白平衡色温的控制

詹永波; 张健伟; 曾建雄; 陈鲁

doi:10.3788/fgxb20163711.1390

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小电流LED屏白平衡色温的控制

器件制备及器件物理 | 更新时间：2020-08-12

- 小电流LED屏白平衡色温的控制
- Control of White Balance Color Temperature for Low Current LED Screen
- 发光学报 2016年37卷第11期页码：1390-1398
- 作者机构：
  
  1. 广东环凯微生物科技有限公司, 广东广州 510663
  2. 广东省微生物研究所, 广东广州 510070
- 作者简介：
- 基金信息：
  
  广州市科技计划（2015050411544485）资助项目()
- DOI：10.3788/fgxb20163711.1390
  中图分类号： TN27
- 纸质出版日期：2016-11-5，
  
  收稿日期：2016-5-10，
  
  修回日期：2016-6-16，
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詹永波, 张健伟, 曾建雄等. 小电流LED屏白平衡色温的控制[J]. 发光学报, 2016,37(11): 1390-1398

ZHAN Yong-bo, ZHANG Jian-wei, ZENG Jian-xiong etc. Control of White Balance Color Temperature for Low Current LED Screen[J]. Chinese Journal of Luminescence, 2016,37(11): 1390-1398
詹永波, 张健伟, 曾建雄等. 小电流LED屏白平衡色温的控制[J]. 发光学报, 2016,37(11): 1390-1398 DOI： 10.3788/fgxb20163711.1390.

ZHAN Yong-bo, ZHANG Jian-wei, ZENG Jian-xiong etc. Control of White Balance Color Temperature for Low Current LED Screen[J]. Chinese Journal of Luminescence, 2016,37(11): 1390-1398 DOI： 10.3788/fgxb20163711.1390.

摘要

为了改善小电流LED屏的显示效果，基于新型LED灯珠光学性能测试数据，采用变量控制法，首先，分析了单色RGB色坐标及亮度分别对白平衡色温的影响，接着，从单变量分析中找到影响色温偏差较大的参数进行双偏分析，最后，进行变量分析结论的数据验证。研究结果表明，红光芯片亮度（

）、蓝光芯片亮度（

）及蓝光芯片坐标（

）是影响LED屏白平衡色温的主因，要使白平衡色温偏差控制在500K范围内，单偏条件下，要求

偏差不超过11%，

偏差不超过14%，

偏差不超过0.006；同时，也给出了双偏条件下相应的控制指标。该研究有望在LED分光机芯片分选，白光照明及小电流、小间距LED显示屏色偏差调节等方面获得相关的应用。

Abstract

To improve the display effect of LED screen

the variable control method was adopted to analyze what to cause the large deviation of white balance color temperature of LED screen based on new type of LED testing data of optical property. Firstly

the effect of the color coordinates and brightness of monochrome RGB on the white balance color temperature was analyzed. Then

the parameters that mainly affected the color temperature deviation were found from univariate analysis

and double partial analysis was conducted. Finally

the data validation of variable analysis was performed. The results show that the red chip brightness (

)

blue chip brightness (

) and blue chip coordinates (

) are the main causes to influence white balance color temperature of LED screen. To confine the deviation of white balance color temperature to range 500 K

deviation must be less than 11%

deviation must be less than 14% and

deviation must be less than 0.006 under the condition of single partial. Moreover

the corresponding control indexes were given under the condition of double partial. This study is expected to be applied in many related fields including LED spectral chip sorting

white light illumination and color deviation adjustment of LED screen with low current or small interval.

关键词

变量控制法白平衡单偏双偏色温偏差

Keywords

variable control methodwhite balancesingle deviationdouble deviationcolor deviation adjustment

references

孙铮. 浅谈小间距LED显示屏的拼接处理技术 [J]. 电子科学技术, 2014, 1(3):396-398. SUN Z. Introduction to the splicing processing technology of small pitch LED display [J]. Electron. Sci. Technol., 2014, 1(3):396-398. (in Chinese)

董彬忠,张威,冉思涵,等. 浅谈高密度LED显示屏应用对芯片的要求 [J]. 电子科学技术, 2014, 1(3):350-353. DONG B Z, ZHANG W, RAN S H, et al.. Requirements on chips for high pixel-density LED display application [J]. Electron. Sci. Technol., 2014, 1(3):350-353. (in Chinese)

唐德荣,杨红雨. LED显示屏灯点逐点校正系统 [J]. 计算机技术与发展, 2015, 25(12):138-142. TANG D R, YANG H Y. LED point-to-point correction system for all lambs [J]. Comput. Technol. Dev., 2015, 25(12):138-142. (in Chinese)

区大群. LED屏白平衡的调制与校准 [J]. 现代显示, 2012(9):253-257. OU D Q. White-balance modulation and correction of LED display [J]. Adv. Disp., 2012(9):253-257. (in Chinese)

李熹霖. LED全彩色显示屏的白平衡和色均匀问题 [J]. 现代显示, 2004(2):15-18. LI X L. White balance and color uniform of full color LED display screen [J]. Adv. Disp., 2004(2):15-18. (in Chinese)

赵梓权,王瑞光,郑喜凤,等. LED显示屏的色域校正 [J]. 液晶与显示, 2013, 28(1):92-98. ZHAO Z Q, WANG R G, ZHENG X F, et al.. Color gamut correction of LED displays [J]. Chin. J. Liq. Cryst. Disp., 2013, 28(1):92-98. (in Chinese)

王宇庆,刘维亚,丁铁夫,等. 基于CCD图像的LED显示屏亮度均匀性评估方法 [J]. 液晶与显示, 2014, 29(1):137-145. WANG Y Q, LIU W Y, DING T F, et al.. Assessment method for luminance uniformity of LED display based on CCD image [J]. Chin. J. Liq. Cryst. Disp., 2014, 29(1):137-145. (in Chinese)

SVILAINIS L. LED brightness control for video display application [J]. Displays, 2008, 29(5):506-511.

WU C C, HU N C, CHEN J N, et al.. Parameterised LED current regulator for pulse width modulation switch delay for accurate colour mixing in multi-LED light [J]. Lighting Res. Technol., 2014, 46(2):171-186.

王俞,王丹,彭周华,等. 全彩LED显示屏的色温修正及IP核实现方案 [J]. 现代显示, 2009(11):34-38. WANG Y, WANG D, PENG Z H, et al.. Color temperature correction of full color LED display and its implementation with IP core [J]. Adv. Disp., 2009(11):34-38. (in Chinese)

YANG B L, YANG S L. Design of full-color LED display-screen system based on ARM and FPGA [J]. Appl. Mech. Mater., 2013, 263-266:1246-1251.

LIANG K Y, YANG B L, YANG S L. Design of intelligent full-color LED display-screen system base on ARM and FPGA [J]. Appl. Mech. Mater., 2013, 336-338:647-652.

ZHANG C, WU X G, ZHANG C J. Design and implementation of LED display screen controller based on STM32 and FPGA [J]. Appl. Mech. Mater., 2012, 268-270:1578-1582.

张齐,郑金辉,李登红,等. 基于FPGA的LED显示屏逐点检测系统的设计与实现 [J]. 液晶与显示, 2008, 23(5):605-610. ZHANG Q, ZHENG J H, LI D H, et al.. Design and implementation of LED screen point by point detection system based on FPGA [J]. Chin. J. Liq. Cryst. Disp., 2008, 23(5):605-610. (in Chinese)

张公礼,任健钱. LED显示屏256级灰度控制芯片的FPGA设计 [J]. 电视技术, 2008, 32(8):36-37. ZHANG G L, REN J Q. Design of 256 level gray scale in LED display screen based on FPGA [J]. Vedio Eng., 2008, 32(8):36-37. (in Chinese)

郝亚茹,丁铁夫,王瑞光. 基于FPGA和SDR Sdram的LED显示[J]. 电子器件, 2008, 31(2):403-405. HAO Y R, DING T F, WANG R G. LED display based on FPGA and SDR Sdram [J]. Chin. J. Electron Dev., 2008, 31(2):403-405. (in Chinese)

王敏,李斌桥,徐江涛. 基于色温估计的自动白平衡算法研究[J]. 光电子激光, 2011, 22(12):1872-1875. WANG M, LI B Q, XU J T. Auto white balance algorithm based on color-temperature estimation [J]. J. OptoelectronLaser, 2011, 22(12):1872-1875. (in Chinese)

朱欣昱,郝安民,张宏昌. LED芯片自动分选系统中的视觉定标问题研究 [J]. 微计算机信息, 2008, 24(13):270-271. ZHU X Y, HAO A M, ZHANG H C. Study of vision calibration in LED chip auto-sorting system [J]. Microcomput. Inf., 2008, 24(13):270-271. (in Chinese)

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温度波动对LED显示屏白平衡主要参数及图像色调的影响