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Optica Publishing Group
  • Journal of Display Technology
  • Vol. 6,
  • Issue 12,
  • pp. 601-606
  • (2010)

New Pixel Design on Emitting Area for High Resolution Active-Matrix Organic Light-Emitting Diode Displays

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Abstract

We propose new pixel design on emitting area and corresponding shadow mask design for high resolution active-matrix organic light-emitting diodes (AMOLEDs) to overcome the limitation of conventional shadow mask process. The proposed scheme has the extended emitting area into adjacent sub-pixel and gives flexibility for manufacturing shadow mask with quarter resolution compared with conventional requirement. The proposed scheme can use normal pixel driving circuit; however, anode electrode in each sub-pixel covers adjacent pixels to extend its own emitting aperture area for high resolution AMOLEDs. We have successfully implemented this scheme in a 4.3-in-sized WVGA (854 x RGB x 480) AMOLED using p-type advanced-solid phase crystallization (A-SPC) backplane technology and top emissive organic light-emitting diode (OLED) device structure and evaluated key performance characteristics.

© 2010 IEEE

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