Before revision: 1 - Glass plates 2/3 - Horizontal and vertical polarisers 4 - RGB colour mask 5/6 - Horizontal and vertical command lines 7 - Rubbed polymer layer 8 - Spacers 9 - Thin-film transistors 10 - Front electrode 11 - Rear electrodes History In February 1957, John Wallmark of RCA filed a patent for a thin film MOSFET in which germanium monoxide was used as a gate dielectric.
After revision: 1 – Glass plates 2/3 – Horizontal and vertical polarisers 4 – RGB colour mask 5/6 – Horizontal and vertical command lines 7 – Rubbed polymer layer 8 – Spacers 9 – Thin–film transistors 10 – Front electrode 11 - Rear electrodes History In February 1957, John Wallmark of RCA filed a patent for a thin film MOSFET in which germanium monoxide was used as a gate dielectric.