Philips 4000 LED 19 " Television 19PFL4738/V7

Type of Screen like LCD, Plasma, OLED

LED: The LCD technology is the same in the cathode fluorescent lamp lit TVs and the LED lit TVs, but the LED lighting of the picture results in a sharper picture, more energy efficient using about 40% less electricity than a standard LCD TV, the LED backlighting system has no delay or warm up time, and the LED lit TVs are much thinner than the traditional LCD or plasma TVs.

No. of distinct pixels in each dimension that can be displayed.

1366 x 768 [WXGA]: There are 2 resolutions for HD broadcasts 1) 720p = resolution of 1280 x720 pixels ~ 1 megapixel 2) 1080i -= resolution of 1920 x 1080 pixels ~ 2 megapixels There is no 3rd resolution of 1366 x 768 in any HD source. A 1366 x 768 image is ALWAYS SCALED
It is all about firmware scaling engine ( video processing chips ) in the display. A huge amount of processing has to happen to make 720 into 768 or 1080 down to 768. In a Good display with a great processing chipset, the 1080 incoming resoultion is 2 times what the display can show, and since it has twice the information it needs, the 1366 display can really do a great job. Some displays do a fantastic job of resizing and de-interlacing. Some 1366 displays do such a fuzzy job of scaling that the image seems about the same as regular TV, just bigger and wider, not Higher in Definition.

Screen Size for optimal viewing.

The electrical power delivered to the loudspeaker, together with its sensitivity.

High Definition Multimedia Interface is a connector that can carry high-definition video and several digital audio channels on one cable.

The USB port on your laptop allows for a variety of gizmos to be attached like camera's memory card, external hard disk, dvd players etc.