Figure 1. The illustration of the monitor display when zooming down to pixel level will find the fact that each pixel is made up of 3 sub-colours.

 

Have you ever wondered what is going on beneath the surface of your TV, your computer monitors or the screen of your mobile phone? In this blog we take a microscopic journey into the world of screen technology, zooming in on the individual pixels that make up LCD (Liquid Crystal Display), LED (Light-Emitting Diode Display) and AMOLED (Active-Matrix Organic Light-Emitting Diode Display) screens. Between LCD, LED, and AMOLED components have the same task as display output to provide a visual output for the Brain ware. LCDs, LEDs and AMOLEDs have the same pixel structure where each pixel consists of three sub-pixels (red, green, and blue). Each sub-pixel is controlled by transistors to give the variation of brightness level for each sub-pixel. As shown in Figure 1, each pixel has 3 sub-pixels. It means if the LCD has the resolution of 1366 x 768 pixels, the LCD has 1366 x 768 x 3 or amount 3.147.264 subpixels that must controlled. The transistor that controls the brightness of the sub-pixels is in the range between 0 and 255. If the sub-pixel is triggered with the 0 level it will make the sub-pixel to be off, otherwise if the sub-pixels are triggered with the maximum number of 255 it will make the sub-pixels to be on and shining very brightly. The combination of colour primers that are on in each level will give the variation of spectrum colour. If three sub-colours in every pixel is triggered with 0, the colour of the pixel will appear black, otherwise, if the three sub-colours with the level trigger is 255, the light colour on the pixel will appear white colour. 

Resource : https://keylens.blogspot.com/2024/09/pixel-perfect-deep-dive-into-lcd-led.html