BOE P1.8 full color LED video wall display module SMD small pixels for indoor usage such as post,traffic,market,public place

Product Overview

Description

BOE BTQ018A,

BOE brand samll pitch indoor LED video display screen.

Item		BTQ018A
Module	Pitch(mm)	1.83
	LED type	SMD1515
	Module resolution	174*86
	Module size(mm*mm)	320*160
Cabinet	Cabinet size(mm*mm)	640*480
	Cabinet resolution	348*258
	Physical density (dot /m2)	295,690
	Cabinet thickness(mm)	66
	Service way	front service
	Cabinet material	Die-casting aluminum
	Cabinet flatness(mm)	<0.1
	Life span(H)	100,000

 

BOE LED display screen features : 

Humanized brightness adjustment
high contrast
Lower maintenance costs
Ultra high refresh rate
Broadcast level gray processing
wide view angle
Single pixel brightness and chroma correction technology
High color gamut coverage
Nanosecond response time

 

 

Driving mode

LED display is divided into constant current drive and constant voltage drive.

Constant current drive, as the name suggests, is that the output current of constant current drive is constant, while the output DC voltage will vary with the size of load resistance

it changes within a certain range, the smaller the responsible resistance, the lower the output voltage. The larger the responsible resistance, the higher the output voltage;

At present, representative driver devices include: icn2053, icn2038, icn2025, sm16206, etc;

Constant voltage drive, its output voltage is fixed, but its output current will change with the increase or decrease of load;

The representative driver is 74hc595d.

Generally speaking, constant current drive products will be better and more expensive. Because of constant current driven products, it has more circuits and chips,

The current can be kept constant, which increases the service life and stability of LED display.