24.5-inch Full HD Medical OLED Monitor

In addition to the unique OLED panel structure described above, Sony's Super Top Emission technology (Fig. 4) utilizes a microcavity structure and color filters to simultaneously enhance color purity, attain higher contrast and achieve lower power consumption.

The microcavity structure utilizes light resonance effects between the two electrodes. Red, Green and Blue all have different light wavelengths. Therefore the thickness of the organic film corresponding to each color is adjusted to produce the spectral peak wavelength (the optimum light) for each color. Only light that possesses the same wavelength as the distance between the "cathode electrode semitransparent film" and the "anode electrode reflective film" resonates. Light wavelengths that do not match are weakened. As a result, the spectrum of the extracted light is sharpened while brightness and color purity are enhanced. This ensures the strongest light from each color.

Figure 4: Super Top Emission

Figure 5: Intensity enhancement and color purification

Figure 6: Decreasing ambient reflection by microcavity and color filter

In conventional panels, a circular polarizer (retardation film and polarizer) is installed on the panel surface to prevent the reflection of ambient light. However this structure also reduces the amount of electroluminescent light emitted by less than half. Sony rejected the circular polarizer and instead created a microcavity structure combined with color filters. This both prevents the reflection of ambient light and enhances color purity. The results are lower power consumption with longer life and advanced picture quality.