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Many TFT technologies in the market today are based on 4-terminal devices. In contrast, the SPICE simulators from other vendors can only support 3-terminal TFT compact models. Although one can model a 4-terminal TFT device using a 3-terminal TFT compact model, this scenario is far from ideal, can create a burden to the modeling
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I’ve used OLED (Organic Light-Emitting Diode) displays for many years in my monitors, laptops, tablets, e-readers and smart phones; and knew that the AMOLED (Active-Matrix OLED) displays used thin-film transistor technology where each pixel can be controlled, but I hadn’t considered the actual design process… Read More
As I write there are multiple displays in front of me that use TFT, LCD or OLED displays:
- ViewSonic Monitors with 24″ display
- MacBook Pro with 15″ display
- iPad Air
- Samsung Galaxy Note 4
- Nexus 7 tablet
- Garmin Edge 820
…
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I knew that the acronym for TFT meant Thin Film Transistors, but I hadn’t heard that FPD stands for Flat Panel Detectors. It turns out the FPD are solid-state sensors used in x-ray applications, similar in operation to image sensors for digital photography and video. I’ll be attending and blogging about what I learn… Read More
Two weeks ago I blogged about amorphous silicon and how that material is well-suited for designing TFTs. Today I’m following up after watching the archived webinarpresented by Nam-Kyun Tak of Silvaco. After clicking on that link you’ll be brought to a brief sign-up page and then can watch the archived webinar in your… Read More
Most ICs are fabricated with crystalline silicon (c-Si), which is a tetrahedral structure forming a well-ordered crystal lattice. There’s another form of semiconductor material called amorphous silicon (a-Si) which has no long-range periodic order. It turns out that a-Si is a great material for the active layer in thin-film… Read More
Traditionally logic devices built on top of thin-film-transistors (TFTs) have used one type of device, either an NMOS a-Si: TFT (hydrogenated amorphous silicon) or a PMOS organic device. Recently a-Si:H and pentacene PMOS TFTs have been integrated into complementary logic structures similar to CMOS. This, in turn, creates… Read More
