15.3: Optimal Monitor Gamma of Transparent Display

Abstract

The most preferred monitor gamma value of an OLED transparent display was investigated by simulating the transparent images under the real room lighting condition. It is found that the preferred monitor gamma values tend to decrease as the luminance of black point of the transparent display increases.

Transparent effect on the gray scale perception of a transparent OLED display

“…Within the range of the transparent effect, the adjusted gamma value can be applied to improve the visibility of low-tones. In previous research [9], the lower monitor gamma was preferred as the transmittance or the surround luminance increased. As the display gamma decreased, the L* value increased when the gray value increased by 1.…”

“…The 2-gamma correction had an adjusted gamma value of 1.7 gamma in the low-tones. The adjusted gamma value was determined in previous research [9]. On the other hand, the 2-gamma correction followed the shape of the 2.2 gamma in the hightones.…”

“…Then, a person will judge the brightness of the image on the transparent display the same as a stimulus with a luminance of 50 cd/m 2 on a non-transparent display. In previous research, authors made this assumption and calculated the luminance [7] or lightness (L*) curves [8,9] of images presented on a transparent display.…”