TY - GEN
T1 - Subjective and objective effects of tablet's pixel density
AU - Lischke, Lars
AU - Mayer, Sven
AU - Wolf, Katrin
AU - Shirazi, Alireza Sahami
AU - Henze, Niels
PY - 2015/4/18
Y1 - 2015/4/18
N2 - Pixel densities are increasing rapidly. We can observe this trend in particular for mobile devices like smartphones and tablets. Previous work revealed an effect of pixel density on subjective feedback and objective performance only for low resolution cathode ray tube screens. It is unclear if this effect persists for the four times higher pixel densities of current mobile devices. Therefore, we conducted a study to compare four pixel densities with 359, 180, 120, and 90 pixels per inch. While participants performed three tasks involving images, text and videos on a tablet, we measured perceived effort, perceived visual quality, task completion time, error rate, and body pose. Our results show that the effect of the pixel density highly depends on the content. We found that only for text, the four pixel densities have clearly different perceived media qualities. Pixel density seems to have a smaller effect on perceived media quality for images and videos and we found no effect on objective measures. Results show that text should be displayed in high resolution, while this is less important for images and videos.
AB - Pixel densities are increasing rapidly. We can observe this trend in particular for mobile devices like smartphones and tablets. Previous work revealed an effect of pixel density on subjective feedback and objective performance only for low resolution cathode ray tube screens. It is unclear if this effect persists for the four times higher pixel densities of current mobile devices. Therefore, we conducted a study to compare four pixel densities with 359, 180, 120, and 90 pixels per inch. While participants performed three tasks involving images, text and videos on a tablet, we measured perceived effort, perceived visual quality, task completion time, error rate, and body pose. Our results show that the effect of the pixel density highly depends on the content. We found that only for text, the four pixel densities have clearly different perceived media qualities. Pixel density seems to have a smaller effect on perceived media quality for images and videos and we found no effect on objective measures. Results show that text should be displayed in high resolution, while this is less important for images and videos.
KW - Pixel density
KW - Resolution
KW - Tablet
UR - http://www.scopus.com/inward/record.url?scp=84951117309&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84951117309&partnerID=8YFLogxK
U2 - 10.1145/2702123.2702390
DO - 10.1145/2702123.2702390
M3 - Conference contribution
AN - SCOPUS:84951117309
T3 - Conference on Human Factors in Computing Systems - Proceedings
SP - 2769
EP - 2772
BT - CHI 2015 - Proceedings of the 33rd Annual CHI Conference on Human Factors in Computing Systems
PB - Association for Computing Machinery
T2 - 33rd Annual CHI Conference on Human Factors in Computing Systems, CHI 2015
Y2 - 18 April 2015 through 23 April 2015
ER -