Thin film diode
A thin-film diode ( English thin-film diode , short TFD ) is a diode , the means of thin film technology is prepared.
application
Thin-film diodes are mainly used in liquid crystal screens , especially in matrix LCDs . This design is also known as a TFD display and is mostly used in mobile devices such as cell phones as an alternative to TFT displays .
The advantages of two-pole thin-film diodes over three-pole thin - film transistors are primarily the lower power consumption and the lower manufacturing costs due to the simpler structure. The disadvantages are a narrower color gamut , which can be counteracted by using a “dual select” diode arrangement that uses two diodes per pixel circuit instead of one .
literature
- Patent DE69416446T2 : Liquid crystal display device with a two-pole element as a switching device. Published on August 5, 1999 (patent for the use of thin film diodes in LCD displays).
Individual evidence
- ↑ Patent application US2006232536A1 : Dual Select Diode Active Matrix Liquid Crystal Display Employing In-Plane Switching Mode. Published on April 18, 2006 , inventor: Willem den Boer.