4K vs 1080p Full HD TVs

When HDTV was first introduced to replace SD - Stadard Definition TV, they comes in 3 favours, 720p, 1080i and 1080p.

720p : 1280x720 progressive
1080i : 1920x1080 interlace
1080p : 1920x1080 progressive

Now in 2014, TV manufacturer are coming out with their latest UHD TVs commonly called the 4K TVs.

UHD - Ultra High Definition simply defined as resolutions of "at least 3,840x2,160 pixels". But most manufacturers refer their UHDTV as 4K TV.

4K TV means 4 X times the resolution of Full HD 1080p resolution. 1080p has resolution of 1920x1080. If you put 4 Full HDTVs together, they will form the resolution of a 4K TV which is 3840x2160.

Therefore, 4K has around four times more resolution than 1080p with over eight million pixels and produces a clearer picture.

4K TVs
4K Tvs usually comes in size of 50inch and above. Below are the latest and most advanced 4K TV offering from Samsung, Sharp, LG and Sony.


4K Blu-ray Disc Player
To enjoy 4K video, you need a 4K TV as well as the 4K media. A 4K capable Blu-ray player is able to play 4K video and output to your 4K tv for your maximum enjoyment.


4K Blu-ray Movies
With the introduction of 4K TVs, movie studios are already releasing movies titles remastered in 4K resolution. Enjoy your flavorite and classic movies in razer sharp 4K resolution and see details you never see before.


How to produce 4K videos
Producing 4K video for show on your own 4K TV is easy as there are already digital cameras and video cameras that can shoot in 4K resolution videos. Now, even high end mobiles phone from Samsung and Sony such as Galaxy Note 3 and Xperia Z2 can shoot video in 4K resolution and can connect wireless with your 4K TVs to playback the 4K video in the big screen.

4K Digital Camaras


4K Video Camaras


4k Mobile Phones

How To Fast Charge your mobile phone using computer USB port

Have your ever tried charging your mobile phone using your office computer USB port or laptop USB port. Very often your will find your handphone charge up very slowly using the USB port. Many end up bringing your power adapter to your office to charge your mobile or buying a 2nd power adapter for use in your office.

I too face the same problem of slow charging handphone but don't want to spend the extra bucks buying a second power adapter. After doing some research on mobile phone charging. I finally found the solution.

The reason why a USB port charged so slowly is because your mobile phone draws lesser current from the USB port if it detect it as a USB port. If a power adapter is plug in to your mobile phone. It will detect it as a AC supply and draws more current to charge up in double quick time!

Using just a USB cable, the mobile phone charges in USB mode.

So the solution to make your handphone charge faster despite being plug in to a computer USB port is simple. Trick the mobile phone into believing that it is being plug into a AC supply. To achieve this, we simply need to added in this fast charge usb adaptor between your computer USB port and your USB cable! Your mobile will think that it is connected to a AC supply and started drawing more current to charge itself faster!

Using a Fast Charge Adapter and a USB able, mobile phone charges in AC mode

Is there any danger or tradeoff to this trick? No danger to your handphone since it is your handphone that draws the current. So it will not overcharge itself since it is in control. How about your computer? Well, it need to supply more current to your mobile phone so it will use more electricity. For desktop, no concern since it is using power plug. For laptop, your battery will drain faster.




So what so special about this quick charge USB adaptor? For those into technical, this adaptor basically short the DATA+ and DATA- of the USB signal. The shorting of DATA+ and DATA- will signal to the mobile phone that it is connected to a AC power supply.

The Fast Charge USB adapter costs about $7, much cheaper than buying a second power adapter!