Auto-brightness control technology depending on user’s pupil area

IEICE Electronics Express

Seung-Woo Lee¹  Seung-Ryeol Kim¹ 

[1] Department of Information Display and Advanced Display Research Center, Kyung Hee University

关键词: pupil area;    auto-brightness control;    displays;    vision;    ambient illuminance;    visibility;   

DOI  :  10.1587/elex.15.20171239

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

An ambient illuminance sensor of a mobile device does not always accurately measure the light that directly affects human perception of the display brightness. Thus, viewing high-luminance displays under low-light conditions causes an unbearable glare, while viewing low-luminance displays under bright-light conditions causes very poor visibility. In this paper, an automatic brightness control (ABC) technology depending on pupil area is proposed. The experimental results revealed that the pupil area decreases by 33% as the ambient illuminance increases tenfold. A linear relation was also observed between appropriate display luminance and logarithm of ambient illuminance in our previous investigation. As a result, the comfortable display luminance is proportional to the relative pupil area, which enables us to propose a novel ABC technology depending on the pupil area.

【 授权许可】

CC BY