OLED display with spalled semiconductor driving circuitry and other integrated functions

摘要

Spalling is employed to generate a single crystalline semiconductor layer. Complementary metal oxide semiconductor (CMOS) logic and memory devices are formed on a single crystalline semiconductor substrate prior to spalling. Organic light emitting diode (OLED) driving circuitry, solar cells, sensors, batteries and the like can be formed prior to, or after, spalling. The spalled single crystalline semiconductor layer can be transferred to a substrate. OLED displays can be formed into the spalled single crystalline semiconductor layer to achieve a structure including an OLED display with semiconductor driving circuitry and other functions integrated on the single crystalline semiconductor layer.

主权项

1. A semiconductor structure comprising:
a single crystalline semiconductor layer having an organic light emitting diode (OLED) display with underlying OLED driving circuitry comprising an array of thin film transistors and located on one portion of the single crystalline semiconductor layer, and CMOS logic and memory devices located on another portion of the single crystalline semiconductor layer, wherein said OLED display comprises an array of OLED devices in which a bottom electrode of each OLED device has a first portion in direct contact with a topmost surface of one of said thin film transistors of said OLED driving circuit and a second portion in direct with a further portion of said single crystalline semiconductor layer.