Displ ay tech­nol­ogy

Linux Format - - TUTORIALS -

TFT LCD dis­play tech­nol­ogy is com­mon in note­books and lap­top com­put­ers. Over the years the dis­plays have slowly re­placed old CRT screens. The TFT LCD dis­play con­sists of a grid of pix­els. The tech­nol­ogy uses a tran­sis­tor to drive each pixel. Hav­ing a tran­sis­tor driver for each pixel means that the pix­els can be switched on and off eas­ier and faster. The TFT de­sign em­bed­ded in the screen also re­duces crosstalk be­tween the pix­els. Crosstalk is when the sig­nal for one pixel bleeds or crosses over onto an­other pixel. Re­duced crosstalk pro­vides bet­ter res­o­lu­tion, thus im­prov­ing image qual­ity.

TFT LCD tech­nol­ogy is the stan­dard for small dis­play screens. The con­nec­tion frame­work of the small dis­play pur­chased for this project is de­signed to plug di­rectly into Pi male header from the fe­male header on the dis­play, elim­i­nat­ing the need for bulky video ca­bles.

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