The difference between 480P 720P 1080P

Sources: The difference between 480P 720P 1080P

SD(Standard Definition)

Standard Definition: physical resolution of 720p video format. 720p refers to the video vertical resolution of 720 lines progressive scan. Specifically, SD means the resolution about 400 lines of VCD, DVD, TV programs and other "standard definition" video format, the standard definition. While the physical resolution up to 720p or more is known as HD ( High Definition) .On the high-definition standards, internationally recognized there are two standard: video vertical resolution of more than 720p or 1080i; video aspect ratio of 16: 9.

HD(High Definition)

Digital TV (HDTV) 720p, 1080i, and 1080p are high-definition standard formats defined by the Society of Motion Picture and Television Engineers, 1080p called the current top-of-the-line display format for digital televisions in progressive-scan 1920 × 1080 resolution. At present, only the  screen size over 60-inch can display the signal 1920 × 1080 resolution. Where I means  interlaced scanning, P means progressive scanning.  Simply , to show the effect, 1080p> 720p> 1080i. Of course, in 20-inch computer LCD screen, there is no difference.

FHD(Full HD)

Full HD:  the physical resolution up to 1920 × 1080 display (including 1080i and 1080P), where i (interlace) refers to interlaced; P (Progressive) represents progressive scan, the Fine degree in those two picture has a big difference, 1080P picture quality is better than 1080i. then 720 is called standard HD. Obviously,  the 1080 resolution is more advantages in large-screen TV, 1080 to ensure a clearer picture quality, but for small screen size tv, there is no big difference.


Recommend reading:
What is HDMI Port
Can I use two sets wireless tv sender in my home?
How to Convert Wired Projectors to Wireless?

HDMI/SDI Wireless AV Sender for photograph and television

Wireless make connection become more simple and convenience, so wireless had become the tendency.

Now, there is many kinds of Wireless AV Sender in the market, like wireless a/v sender for television, for cctv camera, for photograph......, all of av senders has the same basic function, but there still has a little difference.

Here attached PAKITE 
new model 300 meter 
HDMI av sender, 
it is used with 
television for 

transmission 
AV Signal from 
set top box to TV, 
so both Audio and 
Video will be transmit 
at the same time without latency.
It's the 'worth the money' wireless hdmi.

The following is a/v sender 

for photograph, it’s used 

with photograph for 

transmit video only, it’s 

no Compression video.

Now, Wireless AV Sender could be an independent industry, more kinds of wireless av sender come out and become more professional.


Recommend reading:
PAT-260 Wireless Strong Penetration A/V Transmitter from PAKITE
Zero Interference Wireless A/V Sender
Transfer a Wireless TV Signal

Family av friend

Article from @Flickr: Family av friend

Most families own not just one television, because there are multi rooms in their house. But they do not wish to buy multi cable box(set top box) and pay the month fee on it, and running many wires in room.
 So, the HDMI av sender(for input and output device with HDMI port) must be a good friend of them. Let's see what benefit it has.
 1)Place your TV anywhere you like
 Watch your favourite movie in your bedroom, cheer for your favourite football team in the garden or play your kids videos in their room while you’re having dinner with your friends downstairs.
 Why be limited to one room when you can have the freedom to enjoy anywhere you like? The Wireless HDMI Sender connects your AV devices and lets you control them from a different room. The signal quality stays optimal, even through a wall or floor.
 2)TV to TV without running cables
 Put an end to threading wires through your walls at home. Connect your AV devices like DVD/STB wirelessly and enjoy wherever you like. Experience full AV quality with no strings attached! The HDMI av signal will be transmitted from transmitter to receiver wirelessly.

Recommend reading:

300 meter HDMI wireless video transmitter

How to Convert Wired Projectors to Wireless?
HDMI 1.3 and HDMI 1.4 Interface | PAKITE

What is HDMI Wireless A/V Sender?