From：Joey Ho Mobile：+86-13580554524 MSN: JoeyHogz@hotmail.com
Tel：+86-20-82312964 Fax：+86-20-82314120 E-mail：screenled@gzqcled.com

Qichuang LED Display

Part 1: Company Introduction

Guangzhou Qichuang Electronic & Technology Co., Ltd. locates
in Guangzhou, China, is a professional manufacturer of LED display
screen integrating research and development, design, production,
marketing and after-sales service, and make all kinds of led displays,
outdoor use and indoor use, single color, dual-color and full color.

Qichuang LED displays have been widely used in a variety of sites like railway station,
bank, hospital, office building, stadium, airport, post office, gymnasium, business plaza,
and so on. They play an important role for enterprises' spreading and service convenience,
and become more and more popular in every corner of the world.

Certificates: CE, ISO9001: 2000

Add.：Building A, Donghu Industrial Park, Dongpu Town, Tianhe District,
Guangzhou City 510660, Guangdong Province, China
Web：http://www.gzqcled.com/en/index.asp
Guangzhou Qichuang Electronic & Technology Co., Ltd.


Part 6 Project Photos

1) outdoor full color LED display



2) indoor full color LED display



Part 2: Related Concepts

LED
LED is short for light emitting diode.

red lamp green lamp blue lamp

LED Display Screen and Pixel
LEDs are arrayed breadthwise and lengthways with stable pitch that form LED
matrix—LED Display Screen. Each LED of LED display has a corresponding luminance
control circuit. A computer controls the circuit, the circuit influences the brightness of each
LED, then form the picture or letters we desire in the LED display.

LED Pixel Pitch
Pixel pitch refers to the center distance of two pixels, it decides the pixel quantity of unit
area. For example, if the pixel pitch is 4.75mm, there are 44320 pixels/㎡; when the pixel
pitch is 16mm, 3906 pixels/㎡. The smaller the pixel pitch is, the better of screen
resolution and clearness.

Module

indoor 3-to-1 SMD indoor 3-in-1 SMD

outdoor 2R1G1B true/full color outdoor 1R1G1B true/full color



Cabinet

Hermetical cabinets made of several modules for convenient transportation and
installation.

Flight Case(plus additional fee) and standard wooden package(free):

flight case wooden package



Part 3 Technical Parameter

1. Indoor Full Color LED Display

Indoor full color LED display is made of high-luminance LEDs, is suitable to play all kinds
of video, VCD, DVD, text information, pictures and tabulation, also called indoor LED TV.

Item/module P5 P6 P7.62 P8 P10
pixel pitch 5mm 6mm 7.62mm 8mm 10mm
pixel density(dots/㎡) 40000 27777 17220 15625 10000
panel size（W*H） 160mm*80mm 192mm*96mm 244mm*122mm 256mm*128mm 320mm*160mm
panel resolution(dots) 32*16 32*16 32*16 32*16 32*16
pixel configuration 1R1G1B 1R1G1B 1R1G1B 1R1G1B 1R1G1B
power consumption 100-1600W/㎡ 50-1200W/㎡ 50-1000W/㎡ 50-800W/㎡ 50-600W/㎡
view distance 3-150m 3-150m 5-150m 6-150m 8-150m
screen luminance ≥800cd/ m2
view angle horizontal 120°; vertical 120°
p ow er sup p ly 110V-380V
gray scale 65536 grades
displaying mode VGA640X480—VGA1600X1024
life-span ≥100，000 hours
communication distance ≤120m（Ethernet cable） / 500m—20km(fiber)
relativ e tem p erature —25℃ ～ +6 0℃
relativ e h um idity 10%—9 5%RH

drive mode cons ta nt c urren t driv e

signals inputing PAL/NTSC/SECAM、S-Video；VGA；RGB；composite video；SDI...

operation platform Windows98/Me/2000/Xp

brightness adjustment 64 level automatic or manual

2. Outdoor Full Color LED Display



Outdoor full color LED display is made of high-luminance LEDs, has multi-functions of
waterproof, sun-proof, dustproof etc. It can display for a whole day with high-clear picture
and fresh color, apply to play text/picture/flash/graphics/TV program/video/VCD/DVD,
meet a variety of demands.

module P10 P12 P16 P20 P25
pixel pitch 10mm 12mm 16mm 20mm 25mm
pixel density(dots/㎡) 10000 6944 3906 2500 1600
module size（W*H） 160mm*160mm 192mm*192mm 256mm*128mm 320mm*160mm 200mm*200mm
module resolution(dots) 16*16 16*16 16*8 16*8 8*8
pixel configuration 1R1G1B 2R1G1B 2R1G1B 2R1G1B 2R1G1B
power consumption 100-1200W/㎡ 100-1100W/㎡ 100-1150W/㎡ 100-950W/㎡ 100-800W/㎡
view distance 3-150m 5-200m 8-200m 10-200m 15-200m
screen luminance ≥6500cd/ m2
view angle horizontal 120°-140°; vertical 90°
p ow er sup p ly 110V-380V
gray scale 65536 grades
displaying mode VGA640X480—VGA1600X1024
life-span ≥100，000 hours
communication distance ≤120m（Ethernet cable） / 500m—20km(fiber)
relativ e tem p erature —25℃ ～ +6 0℃
relativ e h um idity 10%—9 5%RH

drive mode cons ta nt c urren t driv e

signals inputing PAL/NTSC/SECAM、S-Video；VGA；RGB；composite video；SDI...

operation platform Windows98/Me/2000/Xp

brightness adjustment 64 level automatic or manual



Part 4 Service and Commitment

Before service: We can offer the best resolution according to the customer
requirement.

In-service: Offer the inquiry service of the led display technical, specifications, fitting etc.
Offer the best complete suggestions according to the actual conditions and clients’
requirement.

After service: Within the first year after purchasing, any defective parts of products due
to materials or production failure from QICHUANG will be repaired by Qichuang without
any extra service fee. The shipping & handling charges from customer to Qichuang for
service will be paid by buyer. The shipping fee from Qichuang to customer for sending
back will be paid by QICHUANG.
After warranty period, the customer needs to send back service products to
QICHUANG to Check. The service and repairing cost has to be charged, which will be
notified by QICHUANG. All the in and out shipping charges are at buyer's account.
QICHUANG will offer the update service of software, control system for the life time of the
led display.

Part 5 Certificates


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