Won Kyu Kwak

9.2: A 5.0-in WVGA AMOLED Display for PDAs

Samsung SDI has developed a full color 5.0″ WVGA AMOLED display using top emission structure with a super fine pitch of 0.1365 mm 186 ppi, the worlds highest density OLED display ever reported to date. Scan driver circuits and demux circuits were integrated within the display panel, using low temperature poly-Si TFT CMOS technologies, and data driver circuits were mounted using COG IC. Peak luminescence was greater than 300 cd/ with power consumption of 500 mW with 30% of the pixels on.

53.4: Development of 31-Inch Full-HD AMOLED TV Using LTPS-TFT and RGB FMM

In this paper, we describe the technologies for implementation of the worlds largest Active Matrix Organic Light-Emitting Diode (AMOLED) TV. Low Temperature Poly-Silicon (LTPS) method is applied to integrate driver and pixel circuit in panel. Also, we used Fine Metal Mask (FMM) for color patterned R,G,B pixels. for achieving better color gamut, we applied bottom-emission micro-cavity structure. As a result, we have fabricated 31-inch Full-HD(1920×l080) AMOLED display. The power consumption is less than 40W, which it displays motion picture. We achieved excellent performance like color gamut over 100%, contrast ratio over 1,000,000:1, life time over 35,000hrs, 200cd/m2 white brightness (peak brightness is 550 cd/m2). We now remarkably achieved a slim TV set under 1cm thickness. The module thickness including electronic devices is only 4.3mm with aluminum frame.

9.1: 40 Inch FHD AM-OLED Display with IR Drop Compensation Pixel Circuit

Samsung Mobile Display has developed a full color 40″ FHD AM-OLED display, the largest OLED display ever reported to data. It was based on the technologies of Low temperature poly-Silicon (LTPS) TFT backplane using Super Grain Silicon (SGS) crystallization method, and power line IR-drop cancellation pixel circuit. Through this designed panel, we can estimate the possibility of large-Size and high-resolution AMOLED panel as TV applications.