Sony Unveils Large Full-Color Organic EL Display

TOKYO, Feb. 9 -- Sony Corp. has developed a large-scale Active Matrix Organic Electroluminescence (OEL) display driven by thin-film transistors. The display utilizes Sony's proprietary Top emission Adaptive Current drive (TAC) technology that provides high luminance and high resolution for large-scale displays over 10 inches. The prototype is 13 inches diagonally with a resolution of 800 X 600 pixels.
OEL displays driven by low-temperature polysilicon thin-film transistors are characterized by the self-luminous characteristic that offers wide viewing angle, high contrast ratio and precise color reproduction. OEL displays are also highly luminant, extremely thin and respond quickly to moving pictures. However, conventional driving systems induce non-uniformity of luminance, which makes it difficult to apply OEL displays to large-scale applications.
In order to overcome these drawbacks and apply the OEL displays to large-scale displays over 10 inches, Sony developed the TAC technology to effectively drive the pixels and attain uniform luminance and high picture quality. Having developed the prototype, Sony will now advance its development to establish a mass production process to practically apply OEL displays to consumer display and computer monitor applications.