Roud Led display screen
Model Number : Round Screen Led Display
Place of Origin:shenzhen, China
PH4.28 Technical Specifications |
Pixel point parameter |
1 | LED | SMD1921 |
2 | Pixel Pitch | 4.28mm |
3 | Pixel composition | 1R1G1B |
Module technical parameters |
1 | Module resolution (W * H) | 70*70dot |
2 | Module size (W * H) | 300mm*300mm |
Screen body technical parameters |
1 | Full screen size | 640mm*640mm*120mm |
2 | dot density | 54289dot/m² |
3 | screen resolution | One side 140*140 points,Double-sided 280*140 points |
4 | Brightness (white field color temperature 6500K) | 5500cd/m² |
5 | Horizontal view/vertical view | 140°/140° |
6 | Best visual distance (m) | 4-100m |
7 | flatness | ≥99% |
8 | Chroma uniformity | ±0.003 Cx,Cy之内 |
9 | service life | >100,000 Hours Theoretical value |
10 | way to install | Side hanging, Mosaic, wall hanging, lifting |
11 | Protection Class | IP65 |
12 | weight | Single side ≈12KG double side ≈16KG |
System control parameter |
1 | Signal color processing bits | Red, green, and blue ≥14bit |
2 | type of drive | Constant current drive 1/14 scan |
3 | repetition frequency | 60 frames per second |
4 | refresh rate | ≥3840HZ/S |
5 | maximum power | Single side 200W/ set, double side 400W/ set |
6 | average power | Single side 67W/ set, double side 134W/ set |
7 | Operating Temperature Range | -40°C~+60°C |
8 | Screen color temperature | 2000K-9500K is adjustable |
9 | brilliance control | Manual/automatic/program control |
10 | control mode | Asynchronous control/mobile APP, WIFI, U disk, cloud platform |

Nowadays led logo sign is becoming one the most popular media for
Starbucks coffee stores, MacDonald stores, Kentucky stores,other
retail chain stores, drug chain stores, etc. We have two different
logo sign available: one is P4 outdoor logosign with 512mm , the
other is P4outdoor logo sign with 600mm.Now we will explore what
makes logo sign attractive,the main reason is like following
features shows:
1. High brightness & high contrast ratio makes sharp pictures.Max
55,000nits brightness make it still visible even under the
sunshine.While the contrast ratio is around 4,000:1, so dynamic
pictures always available;
2. Easy operation, you plug in power switch then the logo sign
displays video or pictures automatically;Logo sign can be directly
mounted on the wall by normal bolt.You can deliver video to logo
sign with your mobile phone, or via GPRS 3g 4g 5g, USB disk, or
cloud system which can manager logo sign clusters esp. for logo
sign in different cities;
3.Double sides logo with front access led modules makes maintenance
easy;
4. IP65 makes completely water-proof;
5. For customs logo sign you only can show one ads, but with led
logo sign you can play ads from other clients, then you can get
extra income.
