Date

Place

[19-4]
17:05 ~ 17:20
Title:Determining NNDs in Image Distortion due to Display Curvature
Sungryul Park, Jihhyeon Yi, Donghee Choi, Songil Lee (UNIST, Korea), Ja Eun Lee, Byeonghwa Choi, Seungbae Lee (Samsung Display Co., Ltd., Korea), and Gyouhyung Kyung (UNIST, Korea)
Abstract: The current study investigated NND (not noticeable difference) in image distortion due to display curvature applied to TV.? NND is a psychophysical concept considered ��more valid�� than JND (just noticeable difference).? More severe viewing conditions (i.e. closer viewing distance and smaller radii of curvature) were considered in the current study such that any image distortion could be easily perceived.? The range of display curvature investigated was 2000 ~ 3000mm with a 100 mm increment. ?A total of 16 younger individuals were individually exposed to four series of curvatures, which were presented either in ascending or descending order.? Each series was paired with one of three reference curvatures (2000mm, 2500mm, and 3000mm). ?The participant compared 9 pairs of grid zones on two 55�� Styrofoam mockup displays, and made a 2AFC (two-alternative forced-choice) decision regarding whether or not two set of gridlines were identical. ?Based on the NNDs observed in the current study, one curvature-radius appeared to be sufficient over the range of 2000-3000mm when investigating the effects of display curvature on visual perception and watching experience
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