Active Matrix OLED Displays

J Wang and G Yu, Performance Simulation of Active-Matrix OLED Displays, Photonics Asia 2004 Light-Emitting Diode Materials and Devices, Beijing, China, 2004, pp. 32-44. 

JJ Lih, CF Sung, MS Weaver, M Hack, and JJ Brown, A Phosphorescent Active-Matrix OLED Display Driven by Amorphous Silicon Backplane, Proceedings of the Society for Information Displays International Symposium Digest of Technical Papers, Vol. 34(Book 1), Baltimore, 2003, pp. 14-17. 

J Blochwitz, J Brandt, M Hofmann, J Birnstock, M Pfeiffer, G He, P Wellmann, and K Leo, Full Color Active Matrix OLED Displays with High Aperture Ratio, Proceedings of the Society for Information Display, Digest of Technical Papers, Vol. 35, Seattle, 2004, pp. 1000-1003. 

J.-J. Lih, C.-F. Sung, M.S. Weaver, M. Hack, and J.J. Brown, A phosphorescent active-matrix OLED display driven by amorphous silicon backplane, SID Tech. Dig., 34, 14-17, 2003. 

All these calculations show that pentacene TFTs are feasible for active-matrix OLED display backplanes. For the Penn State/Kodak practical realization mentioned above, a 48 x 48 pixel bottom-emission display panel was designed on a 64 mm x 64 mm glass substrate. To obtain good yield, a design rule of 10 pm was used for the minimum feature size (line width or separation) for most structures on the test panel. The coarseness of this design rule is not related to the use of organic compounds, but rather to the simplicity of photolithographic processes. 

Although there have been several examples of flexible OLED displays on plastics, including passive-matrix OLED displays on poly(ethylene terephthalate) (PET) substrates from Pioneer and Universal Display Corporation [26, 27], and a-Si H TFT-driven monochrome active-matrix OLED displays on poly(ethylene naphthalate) (PEN) from Honeywell [28], there have been no demonstrations of organic TFT-... 

A 48 x 48 active-matrix OLED display was completed on flexible PET substrates. The completed display is shown bent, after wire bonding, in Fig. 15.22. Figure 15.23 shows the display brightness under different data voltages, and Fig. 15.24 demonstrates its flexible functionality during operation. Despite the many noticeable defects on the display, which are expected for displays fabricated outside a dean room, the display was characterized by good drive performance and uniformity. 

Active Matrix OLED Displays Using Organic TFTs... 

FIGURE 6.4.17 (a) Passive matrix and (b) active matrix OLED display pixels. 

Dawson, R.M.A. et al.. The impact of the transient response of organic hght emitting diodes on the design of active matrix OLED displays, Int. Electron Devices Meeting, 875, 1998. 

Aerts, W.E., Verlaak, S., and Heremans, R, Design of an organic pixel addressing circuit for an active-matrix OLED display, IEEE Trans. Electron Devices, 49, 2124,... 

FIGURE 4.1 (See color insert following page 8-22.) 14.1 in. diagonal, solution processed, amorphous silicon active-matrix OLED display fabricated by DuPont OLED Displays with active matrix backplane provided by SEC. Full-color displays based on OLEDs have brilliant colors, have a viewing angle approaching 180°, and are much more efficient than the LCD displays currently used in most applications. 

FIGURE 4.1 14.1 in. diagonal, solution processed, amorphous silicon active-matrix OLED display fabricated by... 

OLED flat and flexible panel display technology is advancing rapidly and full color displays are currently being used in cell phones. Sony recently annoimced a 2.5 in. flexible screen TV that is only 0.3 mm thick and now has an 11 in. OLED TV in production. Samsimg also annoimced a prototype 17 in. high definition (1600 x 1200 pixels) active matrix OLED display panel. 

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