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Related Experiment Video

Updated: Apr 15, 2026

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
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Visual Performance With Small Concave and Convex Displays.

Terhi Mustonen1, Jyrki Kimmel2, Jussi Hakala3

  • 1University of Helsinki, Helsinki, Finland terhi.mustonen@helsinki.fi.

Human Factors
|April 8, 2015
PubMed
Summary
This summary is machine-generated.

Curved flexible displays impact visual search times, with high curvature magnitudes slowing performance, especially on convex surfaces. Display location also affects user performance, highlighting design considerations for flexible screens.

Keywords:
flexible displayshandheld devicesletter identificationuser performancevisual search

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Area of Science:

  • Human-computer interaction
  • Display technology
  • Visual perception

Background:

  • Flexible display technology is advancing, but its impact on user visual performance is understudied.
  • This research investigates visual performance on a 4.5-inch active-matrix organic light-emitting diode flexible display with varying curvature.

Purpose of the Study:

  • To examine how display curvature direction (convex, concave) and magnitude (low, high) affect user visual performance.
  • To understand the relationship between display form factor and human perception.

Main Methods:

  • Three experiments compared performance on planar, concave, and convex displays with low and high curvature.
  • Visual search tasks assessed target detection based on contrast and identity.
  • Performance metrics included target detection sensitivity (d') and search time.

Main Results:

  • Target detection sensitivity was similar across curvature types.
  • High curvature magnitudes significantly increased search times, particularly for convex displays.
  • Visual performance varied based on the target's location on the display.

Conclusions:

  • Avoid high curvature magnitudes in small flexible displays to prevent decreased processing speed.
  • Findings inform the design of user interfaces and visual display devices for flexible screen technologies.