Jun J Jiang

US Patent:

20190326558, Oct 24, 2019

Filed:

Jun 28, 2019

Appl. No.:

16/456797

Inventors:

Khaled Ahmed - Anaheim CA, US
Jun Jiang - Portland OR, US

International Classification:

H01L 51/52
H01L 27/32
H01L 51/56

Abstract:

The present disclosure is directed to systems and methods of improving the efficiency and reducing the power consumption of organic light emitting diode (OLED) display devices. The OLED display device includes an OLED display layer that includes a substrate, an anode layer, a transparent cathode layer, and a plurality of OLED display pixels disposed between the anode and the cathode layers. A light-scattering layer is selectively or randomly disposed on, across, or about at least a portion of the surface of the OLED display layer. The light-scattering layer includes one or more monolayers, each of which includes a plurality of nanoparticles having a principal dimension that is greater than 10% of the wavelength of the electromagnetic energy emitted by the OLED display layer.