The T pixel architecture is shown in Figure 4. The color filters are divided into three types: red, green, and blue according to the color, which are arranged on a glass substrate in sequence to form a group (dot pitch) corresponding to a pixel. Sub-pixel (sub-pixel). In other words, if a TFT display supports a maximum resolution of 1280×1024, then at least 1280×3×1024 sub-pixels and transistors are required. For a 15-inch TFT display (1024×768), a pixel is about 0.0188 inches (equivalent to 0.30mm), and for a 18.1-inch TFT display (1280×1024), it is 0.011 inches (equivalent to 0.28mm).

As we all know, pixels are decisive for the display, the smaller the resolution of each pixel, the greater the maximum resolution that the display may achieve. However, due to the limitation of the physical characteristics of the transistor, the size of each pixel of the TFT is basically 0.0117 inches (0.297mm), so for a 15-inch display, the maximum resolution is only 1280×1024.