37.3: High Performance 2.2″ QCIF Full Color AMOLED Display based on Electrophosphorescence

Abstract

Full color 2.2‐inch Quarter Common Intermediate Format (QCIF) organic EL displays were developed using phosphorescent materials and low temperature poly‐Si (LTPS) technology. These displays exhibited a world record efficiency of 11cd/A at an optimized white CIE coordinate of (0.31, 0.32) with an OLED operating voltage of 6V. The current pixel structure for the 2.2‐inch display allows about 32% aperture ratios and a white peak luminance of over 300cd/m2.

Fabrication of fully transparent nanowire transistors for transparent and flexible electronics

“…Importantly, the present NWTs exhibit relatively high performance in comparison with typical TFTs for display applications, which should allow higher operating speeds and/or smaller device areas. For instance, in order to produce white peak luminance of $ 300 cd m 22 (71 Â 213 mm pixel size, 40% aperture ratio, 40% polarizer transmission, 5.1 cd A 21 of red, 13 cd A 21 of green, 5.7 cd A 21 of blue, and (0.31, 0.32) of white CIE coordinates) using phosphorescent materials, driving transistors on RGB pixels must provide $2.44 mA (red), $1.01 mA (green), $1.46 mA (blue) and $3.9 mA (white), respectively 41 . Therefore, the present transparent NWTs would be suitable for switching and driving transistors on such pixels.…”

Tunable-white-light-emitting nanowire sources

“…Organic electroluminescent materials are now in the spotlight as materials for next-generation displays, backlights, and indoor and outdoor lighting [10][11][12][13][14][15][16][17]. In particular, when organic LEDs (OLEDs) are constructed from organic electroluminescent materials such as those with emission, electron transport, hole transport, and dopant properties, the OLED lifetime and power consumption depend on the type of constituent material.…”

35.4: A 2.1‐inch AMOLED Display Based on Metal‐Induced Laterally Crystallized Polycrystalline Silicon Technology

“…The demand for flat-panel displays with higher information content and lower power consumption has been driving the development of active-matrix (AM) organic light-emitting diode (OLED) displays [1]. In the realization of AMOLED displays, polycrystalline silicon (poly-Si) and amorphous silicon (a-Si) thin-film transistors (TFTs) have been used as the electronic switching elements [2][3][4][5].…”