What we can do now for the Earth.Challenge with our technological development using semiconductors for global warming solutions.

Our company’s history begins with the development of solar batteries using silicon, the most abundant material on earth. Solar batteries emit no CO2 when generating electricity, and thus are environmentally friendly .

The semiconductor processing technology acquired through the development of solar batteries was applied to thin-film transistor (TFT) technology. Today, our main focus lies on new semiconductor materials, “crystalline oxide semiconductors,” which are ceramic materials. Building on our inheritance, SEL’s technologies are utilized in a variety of display products around us. Now, we strive to realize extreme power savings by application of our crystalline oxide semiconductor technology to LSIs.

Today, we are working on innovative research and development in the fields of rechargeable battery and OLED in addition to crystalline oxide semiconductors.

Main R&D Subjects


Crystalline Oxide Semiconductor

Rechargeable battery

OLED