|Abstract: ||Today's diversified world is no longer the era of books, electronic equipment, but electronic products (such as: computers, tablet, smart phones, electronic watches, etc.) Although the help of our life convenience , Regardless of work, life, and even entertainment electronic products are provided by the people's needs, relative, but also cause eye fatigue and burden, long-term use will cause myopia and eye disease and other diseases; However, when people long- Enjoy the benefits of technology products at the same time, but also easy to physiological and cognitive behavior on the negative symptoms, such as visual fatigue and myopia ... and so on, and thus long-term visual stimulation on the brain's visual system will have on how , Is the future of human a major concern, quite worthy of attention.
The purpose of this study is to analyze changes in the black (white and black) checkerboard and to measure changes in brain waves (VEPs). The experiment involved a total of 33 subjects, aged about 20 - 45 years old. Using brain wave instrument, visual flash frequency device as a research tool. For the electroencephalogram, the researchers used Stim software to set the black (black and white) checkerboard 6 * 6 as the substrate to make the stimulus material to produce light, and to experiment with "visual evoked potential" (VEPs). In the process, the subjects wore the brain wave cap and measure the brain waves (VEPs), watch the film (and the resulting brainwave signals recorded by the Scan software, Excel 2015 after the use of statistical analysis). In the case of a visual flash device, the experimenter operates a visual flash device to allow the subject to measure the flash fusion threshold (CFF) before and after receiving the electroencephalogram (VEPs) and the viewing video.