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

作者：Hong Soon Kwang^*; Sim Jea Ho; Seo In Gyo; Kim Keun Choul; Bae Sung Il; Lee Hee Young; Lee Nam Yang; Jang Jin

来源：Journal of Display Technology, 2010, 6(12): 601-606.

DOI：10.1109/JDT.2010.2063694

• A-SPC
• active-matrix organic light-emitting diode (AMOLED)
• aperture area
• patterning
• resolution
• shadow mask

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.

• 出版日期2010-12