显示设备防蓝光模式和色域的关系

Relationship between anti-blue hazard mode and color gamut of display devices

基于新型光源的显示设备以大色域、高亮度、高解析度等优点成为了市场主流.蓝光作为三基色之一,是显示系统不可或缺的部分,它的波长、光谱宽度、亮度等参数影响着显示系统的方方面面.同时,过强的蓝光会损害人眼的视网膜细胞并影响生物节律.如何减少蓝光危害是设计显示系统时需要考虑的重要问题.以手机、电视屏幕为代表的显示设备是人机交互的重要媒介,为了减少其中的蓝光危害,在设备中通常都设有防蓝光模式.这种模式会影响到显示设备的色域.基于此,测量显示系统中色域和蓝光危害随着防蓝光模式的变化过程是有必要的.我们提出了一种测量显示设备特征点获得立体色域的理论.以目前市面上几种主流手机作为实验样本测量立体色域,结合光谱获得蓝光危害值,提出色域和蓝光危害的兑换比例这一测量标准,以评估防蓝光模式的质量.

Display devices based on new generation of light source have become the mainstream of the market due to the advantages of large color gamut,high brightness,and high resolution.Blue light,as one of the three primary colors,is an indispensable part of the display system.Its parameters,such as wavelength,spectral width,brightness affect the color gamut of the display system from different aspects.Strong blue light can damage the retinal cells of the human eye and affect the biological rhythm.Therefore,it is needed to consider how to reduce the blue light hazard when designing the display system.Display devices,represented by mobile phones and TV are an important part for human-computer interaction.In order to reduce the blue light hazard,anti-blue hazard mode is usually used and this mode will affect the color gamut of display device.To measure the color gamut and blue light hazards in a display system with the blue light protection mode is necessary.We propose a theory of measuring the characteristic points of display devices to obtain the stereoscopic color gamut.Several mainstream mobile phones currently on the market are used as experimental samples to measure the stereoscopic color gamut and blue light hazard value.Based on the results,we propose the measurement standard of the conversion ratio between the color gamut and the blue light hazard to evaluate the quality of the anti-blue hazard mode.