环境光对Mini-LED背光LCD光晕感知的影响
Effect of Ambient Light on Halo Perception of Liquid Crystal Displays with Mini-LED Backlight
李超超 1夏振平 2张跃渊 3黄涛 3郭昌龙1
作者信息
- 1. 苏州科技大学物理科学与技术学院,江苏 苏州 215009
- 2. 苏州科技大学物理科学与技术学院,江苏 苏州 215009;苏州科技大学电子与信息工程学院,江苏 苏州 215009
- 3. 苏州科技大学电子与信息工程学院,江苏 苏州 215009
- 折叠
摘要
作为下一代高动态范围(HDR)显示器的有力竞争者,Mini-LED背光的液晶显示是新型显示技术发展的重要方向.Mini-LED背光的液晶显示由于背光分区和液晶漏光等结构特点,不可避免地引入了光晕效应.为探究环境光对Mini-LED背光LCD光晕感知的影响,建立基本的Mini-LED背光LCD光学成像模型,并基于该模型设计了系统的视觉感知实验.实验研究了不同环境光照度、不同局部调光区大小、不同LCD对比度下人眼对光晕的感知效果,并基于实际光测量,探究了环境光对光晕感知的影响机制.结果表明,环境光对Mini-LED背光的液晶显示的光晕感知具有显著性影响,环境光会显著影响图像对比度,其照度与光晕感知强度基本呈负相关.本研究可为不同环境光场景下Mini-LED背光液晶显示系统的设计与优化提供参考.
Abstract
As a strong competitor of the next-generation high-dynamic-range(HDR)display,liquid crystal displays(LCDs)with a minilight-emitting-diode(Mini-LED)backlight are an essential approach for developing new display technologies.LCDs with a Mini-LED backlight inevitably introduce the halo effect because of their structural characteristics,such as local dimming and light leakage.Therefore,to investigate the effect of ambient light on the halo perception of LCDs with a Mini-LED backlight,we propose a fundamental LCD with a Mini-LED backlight simulation model and design a systematic visual perception experiment based on the proposed model.Furthermore,we investigate halo perception under different ambient illuminances,Mini-LED backlight block sizes,and contrast ratios of liquid crystal panels.Additionally,we explore the influence mechanism of ambient light on halo perception based on actual light measurements.The results show that ambient light has a substantial effect on halo perception;ambient light can affect the contrast ratio of the image;and ambient illuminance is negatively correlated with halo perception intensity.Therefore,this study provides a reference for designing and optimizing LCDs with a Mini-LED backlight under different ambient light conditions.
关键词
Mini-LED背光/光晕效应/环境光/视觉感知Key words
Mini-LED backlight/halo effect/ambient light/visual perception引用本文复制引用
基金项目
国家自然科学基金(62002254)
江苏省自然科学基金(BK20200988)
江苏省研究生科研与实践创新计划项目(SJCX23_1751)
出版年
2024
NETL
NSTL
万方数据