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Square LCD Display means the LCD display area in square sizes, such as a 1.54" square LCD display that with 240x240 pixels, or a 4.0" square display with 480x480 pixels, the square screen have the quantity of the same pixel on column and row, that make the display could display an actual square image or round display image via the square display.
A square LCD module doesn't mean the outline dimensions is also square because as the LCD module, the LCD always would have a step on the edge of the LCD, the step is the area for the LCD pinout to the controller, or is the place that located the LCD LCD ic driver, so for the square LCD with square display area, the LCD outline shape can not be square because of the LCD step on the square LCD screen.
The square lcd screen could be used in the smart home control system, smart watch and other industrial or consumer application. it is also could be a cheap solution for round lcd display via the round cover lens on the square lcd display.
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