Jung-Soo Rhee

25.4: Advances and Issues in White OLED and Color Filter Architecture

Since the scalability of OLED process is crucial factor for TV application, white OLED with color filter has been developed for large-Size AMOLED panel. Despite of recent technology advancement enabling high color purity, large-Sized AMOLED, a lot of problems to solve still exist to enter the large-Sized display market. Here, Samsung will discuss what has been concerned for large panel and how far the OLED technologies need to go for the marketplace of large-Sized display.

49.1: A 14.1 inch Full Color AMOLED Display with Top Emission Structure and a‐Si TFT Backplane

A structure and a design of device were developed to fabricate large-scale active matrix organic light-emitting diode (AMOLED) display with good color purity and high aperture ratio. With these technologies, we developed a full color 14.1 inch WXGA AMOLED display. For the integration of OLED on an active matrix a-Si TFT backplane, an efficient top emission OLED is essential since the TFT circuitry covers a large position of the pixel aperture. These technologies will enable up the OLED applications to larger size displays such as desktop monitors and TVs.

P-66: Ink Jet Printed Full Color Polymer LED Displays

We have developed polymer LED displays using ink jet printing without visible swathe marks which can be observed during display operation. In addition, we have also developed a single-pass printing technology for hole-conduction layer deposition to significantly reduce the complexity of interlacing printing across the panel which is known as an alternative to remove the swathe mark.

16.4: A 14.1″ WXGA Solution Processed OLED Display with a‐Si TFT

We have developed the worlds largest a-Si TFT based solution processed AMOLED full color display. In our 14.1″ WXGA demonstrator, we have realized the worlds best performance for solution-processed OLED materials in an active matrix display, while setting a higher standard for uniformity and image quality.

P-177: A 14.1-in. Full-Color Polymer-LED Display with a-Si TFT Backplane by Ink-Jet Printing

We have developed a 14.1 inch full color polymer LED display, based on an a-Si TFT backplane, using ink jet printing, which does not show visible swathe marks during display operation. To remove the swathe marks, we have developed the single path printing technology for the hole-conduction layer deposition to significantly reduce the complexity of interlacing printing across the panel, which is known as an alternative to remove the swathe marks. In addition, we have adopted the interlayer process to increase the lifetime of ink jet printed displays. These technologies will enable the scale-up of the ink jet printed AMOLED applications to larger size displays, such as desktop monitors and TVs.