your right one stuck pixel is a defective LCD,
As a retired electronic repair Tech, I consider stuck pixels to be a manufacturers defect, however most manufacturers do not want to warranty stuck pixels at all or even the set for more than a year this is BS
In the 1980's & 90's Canadian Manufacturers warranties for TV's were standard 3 years P&L on the set & 5 years on the CRT, back then you paid about $800 - $900 C for a 26" name brand set with A/V & S- Video inputs
3 years ago I bought a Daytek 32" wide screen HDTV=(25" SD at 4:3 aspect ratio") for $1499.00 C (before they cheaped out the product line for Walmart, Costco, Zellars to sell for $599.C a year later) It came with a one year warranty P&L & an exclusion for display issues BS!
the good news is it is still going strong 3 years later with no issues & no stuck pixels.
I also have an old HP M700 note book that runs at least 8 hours a day always on with no screen saver, I had to replace the backlight inveter a few months back but not one stuck pixel.
the problem is crappy production, LCD Displays used to be graded, a perfect display used to sell for top buck in a major brand while the seconds & 3rds were bought up by no name companies & sold at less than half of the cost of name brand.
now the problem is name brand companies do not want to loose profit or sales to these bargain brands so they have started producing economy models with lower grade(flawed, defective LCD's) without stating they are seconds & may contain minor imperfections in the LCD.
So these companies do not want to be responsible for repair or replacement at their cost including all shipping costs, and the bargain outlets selling these items don't want be responsible either and this is just wrong.
If you bought a CRT TV or monitor & it had a dark spot on the screen because they used second grade CRT's & some of the Phosphor coating was missing because the machine ran out of spray when they built the tube & quality control did not catch it.
you would expect it to be covered under warranty & it would be.
I will not buy LCD without seeing it first unless the store has a 100% no BS return policy no question asked, if I don't like it I can return it for exchange, credit, or refund.
Joe