**What does the Thin Film Transistor (TFT) electrode serve as?** The TFT electrode serves as *a connection point.* > **What does the Thin Film Transistor (TFT) electrode do?** > The TFT electrode *delivers electrical current to the subpixels.* **What does the Thin Film Transistor (TFT) serve as?** The TFT serves as *an electrical switch.* > **What does the Thin Film Transistor (TFT) do and how?** > The TFT *turns each sub-pixel on or off by controlling the amount of current when a certain threshold voltage is applied.* **How is a Thin Film Transistor (TFT) made?** A TFT is made *by depositing a thin film made from a semiconductor.* **What does the Thin Film Transistor (TFT) adjust for each pixel?** For each sub-pixel, the TFT adjusts *the brightness.* > **What does each sub-pixel require to render colors on the screen?** > To render colors on the screen, each sub-pixel requires *current.* > > **When does the Thin Film Transistor (TFT) deliver current to each sub-pixel?** > The TFT delivers current to each sub-pixel *when a specific voltage is applied.* **What is the cross section layout of an Organic Light-Emitting Diode (OLED) and Liquid Crystal Display (LCD)?** The cross section layout of an OLED and LCD is: ![](https://global.samsungdisplay.com/upload/editor/20250519/IAmmSdVm05_20250519103417.png)