Minimum and maximum luminance values and luminance ratios for the devices tested in this study.

<p>The unit for luminance is cd/m².</p

One-dimensional noise power spectra for the devices tested in this study.

<p>One-dimensional noise power spectra for the devices tested in this study.</p

Contrast responses at 18 luminance levels as a function of JND index.

<p>The measured contrast responses at each step and the expected contrast responses from DICOM GSDF with the 15 and 30% tolerance bands are depicted.</p

Modulation transfer functions as a function of relative spatial frequency for the devices tested in this study.

<p>Sinc function representing the ideal MTF is included.</p

Two-dimensional noise power spectra for the devices tested in this study.

<p>Two-dimensional noise power spectra for the devices tested in this study.</p

Specifications for the display devices tested in this study.

<p>Specifications for the display devices tested in this study.</p

Line spread functions for the devices tested in this study.

<p>The relative luminance profiles on a 1-pixel line are shown on logarithmic scale.</p

Diffuse reflectance coefficients as a function of specular reflectance coefficients for the devices tested in this study.

<p>Diffuse reflectance coefficients as a function of specular reflectance coefficients for the devices tested in this study.</p

Display pixel structure.

<p>The screen displaying the 1-pixel line pattern was captured by the photometric camera. Since these image are not exactly in the same scale, 0.1-mm scale bars are indicated. Squares bounded by orange dot lines show the one pixel region of the displays. The vertical lines reflect the horizontal resolution characteristics corresponding to the RGB direction.</p

Experiment layouts.

<p><b>A.</b> The layout of the photometric CCD camera capturing the display screen for MTF, NPS and luminance measurements. The center line of the vertical 1-pixel line pattern was used for the horizontal LSF and MTF. <b>B.</b> The layout of the spot photometer measuring the luminance reflected off the display screen through the gap between the fluorescent lights for diffuse reflectance measurement. <b>C.</b> The layout of the spot photometer measuring the luminance reflected off the display using the flash light source for specular reflectance measurement. The photometer and light source were positioned symmetrically 78.7 cm away at 15° from the normal relative to the screen.</p