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使用PWM调光方法对OLED显示器的闪光效应进行表征
概括
这项研究使用脉冲宽度调制 (PWM) 检查了OLED智能手机显示器的闪. 结果显示,闪在较低的频率和亮度下是可见的,这表明OLED的调整了强光透视度测量 (SVM) 值.
科学领域:
- 视觉感知 视觉感知 视觉感知
- 显示技术 显示技术
- 人与计算机的交互
背景情况:
- 有机发光二极管 (OLED) 显示器在智能手机中普遍存在.
- 使用脉冲宽度调制 (PWM) 调暗,可能导致闪.
- 为照明而开发的强光透视度测量仪 (SVM) 用于评估OLED闪.
研究的目的:
- 为了研究调光频率和显示亮度对OLED智能手机显示器中偏光学效应的影响.
- 在不同的条件下,确定光学效应的可见度值.
- 评估SVM对OLED显示器的适用性.
主要方法:
- 在智能手机OLED显示屏前面呈现了一个振荡臂.
- 调光频率和显示亮度系统地变化.
- 斯特罗博斯科普效应的感知可见性被记录下来.
主要成果:
- 在40cd/m2亮度以下的480hz和960hz时,可以看到光效应.
- 在1440Hz和5cd/m2时,50%的使用周期显示可见的闪.
- 在1920赫兹或2160赫兹时没有观察到光学效应.
结论:
- 在OLED显示器上的偏光学效应取决于调光频率和亮度.
- 可以将SVM应用于OLED,但建议使用保守的值 (SVM 1.5-2).
- 进一步的研究可能会完善用于显示技术的SVM应用.
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