LearnTV LED TVs and LCD backlighting

What's an LED TV? Can you save money simply by buying the right TV? LCD TV backlighting is a complex subject, and the marketing of different TVs to make them stand out on at your local electronics store is often designed to confuse you further! In this episode we look at LCD backlighting from the CCFL to the RGB-LED and explain what to look for... and what you should be spending your money on!

Category:

Science & Technology

Tags:

• LED TV
• LEDTV
• LED
• LCD
• backlight
• BRAVIA
• Samsung
• Sony
• Learn
• LearnTV
• species
• RGB-LED
• X-series
• RGB
• local dimming
• Edge-LED
• plasma
• colour
• gamut
• HCFL
• CCFL
• WCG-CCFL
• color
• TV
• LCDTV

[surferboy36O]

Excellent clear explanation!! This is how all videos should be!! Congratulations!

But c'mon, can't they make LEDs smaller? this technology has been around for decades now, I'm sure it's possible, the one you show is a conventional all purpose 3mm LED, specific hi-tech aplication small "panel type" LEDs must exist, aren't the OLEDs screens the proof of this? This is just a marketing scheme to keep masses under control, making them buy continuosly while the next gener tech is already available.

[sonylearntv]

@surferboy36O Thanks for your comments! You're right, of course, OLEDs are essentially "very small" LEDs... Unfortunately there's still a bit of an issue with the different "LEDs" aging at different rates - all lights get dimmer over time, but if one colour on a TV get dimmer quicker than another it shifts the overall screen colour. There's some tricks which can be used to compensate for this, but it makes the panel circuitry pretty complex (read: expensive!) so we're not quite there yet...

[dipu94321]

what is size of that TV

[sonylearntv]

@dipu94321 It's 46"

[sergiu239]

@sonylearntv what you think is better for gaming,watching movies sony 32ex500 or 32ex600

[sonylearntv]

@sergiu239 Motionflow (on the EX500) is great for most movies (smoother picture) and quite a lot of gaming, but if you're a serious gamer you might want to turn if off as it does result in a slight picture delay. The EX600 is a good overall TV (LED edge lit for good contrast and low power consumption + a slim design) but doesn't feature Motionflow. If you're mainly getting it for movies and don't mind the bigger frame on the EX500, I'd go for that.

[TheMrDavidKing]

@GooglSpiesOnUs Yes

[safwan20009]

sony is bullshit ,,i bought my sony one year ago..now its broken..no parts to buy..should buy whole screen..so i discarded the lcd...bullshit bullshit

[teardropnur]

But wat I want to knw is...wat is d best type of TV should I buy for a room with smaller space?and wat size? It does make a difference right?

[teardropnur]

Thanks for d great explanation...I knw other companies are also great like Samsung but I will choose Sony coz all my other entertainment products are from Sony like PS3 and home theater system... And it's all Sony coz they are good quality ( proven with my older tv n stereos)

[trimmysheen]

To Look really for cheap flat screens I'VE just found the PAGE OF THE PAGEST.. JUST BOUGHT THERE THE NEW SAMSUNG LED UE46 S9090 for unbelieveble 1500 USD!!!! on buyacheapflatscreentv. com

[nuwandimuthu]

best explanation so far i have seen in the youtube about LED.Thanks

[Pauluz]

Right! Wonderful vid btw!

[GooglSpiesOnUs]

LED tv last longer then LCD tv right?

[dreamcastII]

Can a Sony psp 3000 screen rival these LCD TVs? Which is better. I like my psp screen and am hoping these TVs are as good - or are they better?

[l337g0g0]

@sonylearntv Hello sir, excellent job here. so i got the 46ex720, now i'm pretty sure the only difference is the 3D on this tv from what your describing but, It says i have the motion flow 240. Is that so in 3D mode i still can get 120 each eye? ty sir again very good job...