Patent ID: 7517550

Claim:
A method of manufacturing a picture element for an electro-luminescent display, comprising: forming a first buffer layer on both a first area and a second area above a substrate; forming a second buffer layer on both the first area and the second area above the first buffer layer; forming a gate oxide layer on both the first area and the second area above the second buffer layer; forming a dielectric layer on both the first area and the second area above the gate oxide layer; forming a passivation layer on both the first area and the second area above the dielectric layer; etching the passivation layer on the second area; etching the dielectric layer on the second area; etching the gate oxide layer on the second area; forming at least one first color type electro-luminescent device disposed above the passivation layer on the first area; and forming at least one second color type electro-luminescent device disposed above the second buffer layer on the second area.