Ronald Steven Cok

DIGITAL IMAGE COMMUNICATION

A system for enhancing group communication includes a computer server for receiving a first digital from a remote client. The server analyzes the first image to determine one or more first image attributes and communicates the image to one or more recipients. Communication information including image attributes, email addresses, and names of the recipients is stored. When a second image is received the server analyzes it to determine its attributes and forms second image communication information relevant to the second image. The second communication information includes data from the first image communication information, its image attributes, and one or more separate second image recipients.

White‐emitting OLED devices in an RGBW format with microelement white subpixels

— OLED devices with an RGBW pixel format using an unpatterned white emitter have the potential to provide very good efficiency and color gamut while enabling lower-cost and large-format manufacturing. However, the white subpixel often has unacceptably large color shifts with viewing angle. Furthermore, for some architectures such as top-emitting microcavity devices, it can even be difficult to produce a white subpixel with good on-axis color. In this paper, we describe the use of a white subpixel made up of a combination of differently tuned microelements and demonstrate how such an approach can overcome these problems. By carefully tuning the color and areas of each of the microelements in the white subpixel, we can trade off between better on-axis color, less color change with angle, and higher efficiency. Furthermore, it was demonstrated that an RGBW top-emitter microcavity device with a microelement white subpixel can achieve an increase in both power efficiency and color gamut relative to a conventional RGBW bottom-emitter non-microcavity device.