Any , experienced the curved TV. Now a day wide screen TVs come. With flat model and curved model. I suppose if you beyond 40" TV you should go for a curved one .

Consumers in the market for a brand new flat screen TV that has all of the latest features for 2015 should consider the Samsung JU6400 series. This 4K resolution UHDTV is one of the best currently offered by the industry-leading brand. The JU6400 offers the same quality picture and sound that Samsung TVs are known for, with several new features that make this model a must-have for any TV enthusiast. Smart Stats

• 40?
• 48?
• 55?
• 60?

The UN40JU6400 price is: 16% above LG 40? TVs avg. price
5% above Samsung 40 Inch TVs avg. price
152% above Vizio 40? TVs avg. price Check price

We also suggest:

1. 40? JU6500 is 14% cheaper
2. More advanced 40? JU7500 is 60% more expensive

Like its predecessors such as the J6200 and the J6300, this model offers the same LCD flat screen panel for a crystal-clear viewing experience. However, there are several variants in the features for the JU6400 that will make it a worthwhile upgrade from the traditional Full HDTV. 4K Ultra HD resolution is offered on every TV in this series which provides the best possible resolution available today. Other new additions include the Micro Dimming Pro feature which allows the TV to fine tune the image by adjusting the cells in the LCD display. This provides the viewer with perfect lightness and darkness levels on the screen for a true-to-life image.

The Smart TV platform for the JU6400 series is powered by the Tizen operating system. This new update for 2015 provides owners with a complete overhaul from the previous Samsung Smart TV interface. New features include the full Samsung App store that offers access to today's hottest applications such as Facebook, Amazon Prime and Netflix. The menu and browsing options are also much easier to access and use than those offered on previous Smart TV models.

While the Samsung JU6400 is an exceptional option for anyone who wants to purchase a model with better resolution and more futuristic features, it does not include some of the latest features offered by the brand. Innovative extras such as the Smart Control remote and the new Curved screen design are not offered in this particular series. 8.0Great
8.1Dark Room
8.0Average Room
8.4Bright Room
7.8Video Games
8.0Daily Use
8.0Extra Features

8.0
Overall - Cons and Pros

1. The JU6400 series of TVs are some of the most expensive on the market, even though they do not offer all of the latest features.
2. Some common problems that users have reported having with the JU6400 include lip-sync issues and poorly reproduced sound effects.

1. The JU6400 Series has a lot of features packed into its sleek design. With 4K UHD resolution viewers can enjoy a true to life image no matter what type of programming they are watching.
2. This series of TVs includes Samsung's latest Smart TV features and provides users with quick access to popular apps such as Netflix, Amazon Prime Video and more.

Check Ju6400 Price

40?UN40JU6400 CHECK PRICE 48?UN48JU6400 CHECK PRICE55?UN55JU6400 CHECK PRICE 60?UN60JU6400 CHECK PRICE


Conclusion
The Samsung JU6400 Series has a lot to offer all types of TV viewers. It is the ideal upgrade for those who are new to Smart TV features and provides a crystal clear image with 4K UHD resolution making it perfect for those who enjoy watching high-definition movies and live events. While you can expect to receive many high-quality features with this higher-end TV model, consumers should be aware of the fact that some of the most recent extras currently available on newer Samsung TV models are not offered on TVs available through this series. Yet for the avid viewer who simply wants a good upgrade, this TV is an excellent choice. I hope this helps answer your question Evgeny.

Yes. You can set it as your viewing interest. Electro help

Why are you using 4:3 letterbox? It might be the default aspect ratio but widescreen tvs should be set to 16:9 aspect ratio.

What update?
The likelihood of a firmware update for a TV is beyond calculation. These tvs are churned out like toys until the next season's toys are ready to make. The old moldels are forgotten and NO money is spent on updates or spare parts.

Use distilled water and a microfiber cloth for best results. If the screen is really dirty, use a diluted household cleaner, such as 409, either sprayed or sponged on, then dry with the microfiber cloth.

Sorry this tv can't be fix acept replaced the whloe picture screen panel itself,the tvs screen panels are in of the limited production by the tvs industries,only can buy picture screen panel from the tvs themselves and it 90% important to the tv,will cost u the same as a new tv to get picture screen replaced.Sorry doesn't worth as a whole tv anymorre the tv now only worth as salvages tv for it electronic boards for spare parts for other tv,that it.

Sorry,this tv is not worth fixing.Sorry,this tv is not worth as a whole tv anymore.Now it only can be salvages for it electronic boards for parts,that it.LCDS,Plasmas or any other tvs for that matters.Have a damage or broken tvs pictures screens panels.The tvs pictures screens panels are 90% important to the tvs.These pictures screens panels are limited in productions by the tvs corporations,no where u will be able find it and buy a pictures screens panels for the tvs replacement,except by the tvs corporations themselves.Yes,they'll sell it u,but they'll charge u the same as a new tv.

Not fixable,because replacing LCD screen panel,will cost the same as a new tv.The picture screen panels in any tvs models are limited produced by the tv corporations.Worth 90% of the functions of any tvs.No where,u will able to buy the screen panels to any tvs.The tvs coporations,will sell it to,but same price as a new tv.Sorry ur tv not worth as a whole tv anymore.Now only worth as a salvage for parts only.

just look at the owners manual of how to adjust the picture

sharp has a problem with this model-try to turn the contrast down to cover up
or you can contact sharp-good luck they will not support their own product
next time you buy a tv get the extended warranty-there is no more quality in todays tvs
sorry for the bad news