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Choice of LCDs (Liquid Crystal Displays): STN and TFT
You can also easily determine the LCD type in a product code.
EZ-S8C-F, where the S stands for STN
EZ-T8C-FS, where the T stands for TFT
STN
(Super Twisted Nematic)
STN screens have limited color range, and viewing angle (15 degrees max).
STN screens are an improvement over the original Twisted Nematic(TN) screens. STN screens use a fluid with a greater twist (200° or more). It can be used in larger matrix displays and has better contrast and viewing range than TN.
Super Twisted Nematic LCDs use a passive matrix screen technology that has no active or controlling element inside the display cell. Pixels are controlled by energizing the appropriate row and column drive lines of the matrix from outside the display, resulting in a slow frame rate.
TFT
(Thin Film Transistor)
TFT screens provide more accurate color control, allowing it to display more colors, while offering a wider viewing angle range (30 to 70 degrees). With TFT LCDs, each pixel is controlled by one to four transistors. Typically one transistor is used for each of the RGB color channels. Because of this direct control technique, TFT screens are sometimes called Active-Matrix LCDs.
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