Visual Fatigue Caused by Tablet PC Based on Critical Fusion Frequency and Eye Blink Frequency

Cheng Ming Chen; Hui Wang; Yong Tang; Xun Zhang

doi:10.4028/www.scientific.net/AMM.401-403.544

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Visual Fatigue Caused by Tablet PC Based on...

Visual Fatigue Caused by Tablet PC Based on Critical Fusion Frequency and Eye Blink Frequency

Abstract:

The objective of the study is to evaluate visual fatigue induced by different tablet PCs (LCD/OLED) by measuring CFF (critical fusion frequency), BF (eye blink frequency) and (SR) subjective rating. Twelve healthy subjects (10 males and 2 females) participated in the study in a controlled simulated living environment with a 18-23°C temperature, 30-45% relative humidity and 150lx illuminance. The experiment was carried out about 50 minutes, including: 30 minutes watching task (EOG test) and 20 minutes test (including subjective questionnaire and CFF test before and after the experiment). The experiment design included dependent variables: CFF, BF and subjective rating (SR); and two independent variables: Tablet PC types, watching times. As a result, after the experiment, the decline range of CFF of LCD was lower significant than that of OLED (p<0.001); the decline range of BF of LCD was higher than that of OLED (p<0.01). Also, subjective rating indicated a consistent result that higher visual fatigue was founded after watching LCD. As a whole, watching LCD tablet PC caused higher visual fatigue than watching OLED tablet PC in general.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

544-547

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.544

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Online since:

September 2013

Authors:

Cheng Ming Chen, Hui Wang, Yong Tang, Xun Zhang

Keywords:

Critical Fusion Frequency (CFF), Eye Blink Frequency, Tablet PC, Visual Fatigue

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