3‐1: Invited Paper: 3 Stack‐3 Color White OLEDs for 4K Premium OLED TV

Abstract

We report an improved 3-stacked white organic light emitting diode (WOLED) structure comprised of layers emitting red and yellow-green phosphorescence in the 2nd stacked device. We focused on developing the WOLED devices to realize 4K premium OLED TV displaying very high brightness and excellent color characteristics, with the optimized color layer. The WOLED has a high current efficiency of 83 cd/A, and cool white color whose color coordinate is (0.297, 0.317). 65-inch 4K premium OLED TV employing the new WOLED shows 800 nit of peak brightness, and 99 percent color gamut in DCI color space.

27‐2: Invited Paper: Soluble Small Molecules in Top Emission OLED Devices from Ink Jet Printing: Requirements and Performance Status

“…Larger sizes have been limited to demonstrators or low volume series, likely due to low yield caused by fine metal mask patterning. For this reason, WOLED+CF was successfully established for large displays of 55" and beyond [2]. Here, open mask evaporation is applied with several sub-units of e.g.…”

P‐167: Low Temperature Curable Hole Injection Polymer for Flexible OLEDs

“…From the comparison of UV-Vis spectra of the films before and after rinsing with toluene, the remaining film ratio was calculated. The remained film ratio is expressed as below equation (1). Absorbance of thin film on quartz glass was measured by Spectrophotometer U-3900H(Hitachi).…”

“…The development of organic light-emitting devices (OLEDs) have been progressed in the solid-state or the flexible display and lighting applications [1][2][3][4]. Flexible OLEDs (FOLEDs) are the attractive device because of their potential to various applications.…”

5‐3: 3‐Stacked Top‐Emitting White OLEDs with Super‐Wide Color Gamut and High Efficiency

“…On the contrary, the "white OLED + color filter" solution, aided by the high-resolution photolithography process, can simply the evaporation process and realize high resolution, high yield and low manufacturing cost with open mask. Up to now, the commercial "white OLED + color filter" displays mostly adopt bottom-emitting structure [8,9], but top-emitting white OLED structure [10][11][12][13] has attracted a great attention because it can offer high pixel density, high resolution and long lifetime. Meanwhile, there are still many troubles to overcome before being put into mass production, e.g., the relative low efficiency caused by sputtering damage when utilizing IZO for medium-sized displays.…”