90์‹œ๊ฐ„์ ํ˜€์žˆ๋Š”๋ฐ rgbํ‚ค๊ณ  4000hzํ‚ค๊ณ  ์‚ฌ์šฉํ•˜๋ฉด ๋ฒ ํ„ฐ๋ฆฌ๊ฐ€ ๋ˆˆ๋…น๋“ฏ์ด ์‚ฌ๋ผ์ง€๋…ธ ์”จ๋ฐœ...