Seiko Epson Corp. said it has established an inkjet technology that enables the uniform deposition of organic material in the production of large-screen organic light-emitting diode (OLED) TVs. The technology is said to represent a major step toward the realization of 37-inch and larger full-HD OLED TVs by resolving the uneven layering that had previously been an issue with the inkjet method.

This OLED display fabrication process leverages the company's proprietary Micro Piezo inkjet technology to achieve greater accuracy in organic material deposition than the conventional technology. The process has been used in trial production to fabricate a highly uniform prototype panel. Extremely uniform layers (volume error <1 percent) are achieved by precisely controlling the selection and ejection of multi-size droplets of ink material on a substrate so that only the required volume of material is deposited.

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