갤럭시노트7, 스마트폰 최초로 밝기 1,000cd/㎡ 돌파

Galaxy note 7 이 밝기 1,000cd/㎡를 돌파했다.

강현주 / jjoo@olednet.com

삼성전자의 신제품 갤럭시노트7( Galaxy note 7 )의 디스플레이가 스마트폰 최초로 밝기 1,000cd/㎡(가로·세로 1미터의 평면에 촛불 1000개를 켜 놓은 정도의 밝기)를 돌파했다고 삼성디스플레이가 10일 발표했다.

갤럭시노트7은 디스플레이 전문 기관인 디스플레이메이트의 화질평가에서 종합점수 ‘Excellent A’ 등급을 획득했다. 디스플레이메이트가 공개한 평가 결과에 따르면 갤럭시 노트7은 주요 평가항목인 밝기, 야외시인성, 색 표현력 등에서 역대 최고 수준을 기록한 것으로 나타났다.

갤럭시노트7은 5.7형 QHD(2560×1440) OLED를 탑재해, 해상도와 사이즈 면에서 전작인 노트5와 동일한 스펙을 유지했으나 밝기, 반사율 등 야외시인성 관련 성능은 크게 개선된 것으로 나타났다.

스마트폰은 다른 IT제품에 비해 야외에서 사용하는 경우가 많아, 밝은 태양광 아래에서도 화면이 또렷이 보이는 정도인 야외시인성이 중요하다. 야외시인성은 디스플레이의 밝기와 반사율에 가장 큰 영향을 받는다. 디스플레이메이트에 따르면 노트7의 최대 밝기는 1,048cd/㎡로 측정돼 전작인 갤럭시 노트5의 861cd/㎡ 보다  22% 가까이 높아졌다.

갤럭시노트7은 화면 시청을 산만하게 하고 눈에 피로도를 높이는 요소인 화면반사율도 지속 개선해 노트 시리즈 중 역대 최저인 4.6%를 달성했으며, 무한대에 이르는 명암비 등을 통해 야외에서도 뛰어난 가독성을 확보했다는 게 삼성전자의 설명이다.

갤럭시 노트7은 모바일 HDR(High Dynamic Range) 기술을 탑재했다. 사람의 눈은 암흑 상태인 0cd/㎡부터 수만 cd/㎡까지 다양하게 인식하는데 비해, 디스플레이는 그보다 훨씬 좁은 영역의 밝기만 표현할 수 있어 그 동안 자연스러운 장면을 담아내기 어려웠다. HDR은 화면의 어두운 부분은 더욱 어둡게 표현하고, 밝은 곳은 더욱 밝게 표현해 화질을 높이는 기술로 현재 프리미엄 UHD TV를 중심으로 사용되고 있다.

특히 이번 평가에서 갤럭시 노트7은 DCI-P3의 색표현영역 만족도 97%라는 최고 수준의 기록을 달성해 약 80% 수준인 LCD 기반 제품보다 월등한 화질 성능을 과시했다.

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