LED Display Electronics Testing Labs Emc Emi Esd Third-party testing and authentication services

Provide various AV/IT products testing and certification

With the advent of the Internet era, IT/AV multimedia has become an indispensable part of people's life, and its security, electromagnetic compatibility and reliability issues have become the focus of manufacturers and consumers.

Product range:

Radio, television, combination stereo, active speaker, tuner, Karaoke, sound mixer, video recorder, language repeater, television, monitor, Projector, TV antenna amplifier, video modulator, frequency converter, audio and modem, satellite television broadcasting receivers, set-top boxes, digital TV receiver, electronic organ, central processing unit (CPU), printers, monitors, scanners, picture-tel, fax, telephone switches, transponder, radio and television transmission receiving equipment, pagers, separation device, rotary steam Type DRYER, ENGRAVING machine, LASER cutting machine, SAwing machine and SLicing machine, CENTRIFUge, injection machine, oven and heating furnace, ion implantation machine, microscope, measuring and testing instruments, color separators, spectrometers, optical ray equipment, word processors, etc.

A monitor is an I/O device of a computer, an input/output device. It can be divided into CRT, LCD, etc. It is a display tool that displays certain electronic files to the screen and then reflects them to the human eye through a specific transmission device.
A monitor is also commonly called a monitor. A monitor is an I/O device of a computer, an input/output device. It can be divided into CRT, LCD, PDP, OLED and so on. It is a display tool that displays certain electronic files to the screen and then reflects them to the human eye through a specific transmission device.

Testing standard

Display inspection items:

I. Optical characteristics test of LED display module
Measurement of LED display module brightness uniformity, chromaticity uniformity, color coordinate, related color temperature, gamut area, gamut coverage, spectral distribution, visual Angle and other parameters, to meet international and domestic standards.
2. display brightness, chroma, white balance detection
Luminance meter, imaging luminance meter, hand-held color luminance meter the implementation of the LED display brightness and brightness uniformity, the chromaticity coordinates, spectral power distribution, color uniformity, white balance, color gamut area such as optical properties, color domain coverage test, meet the quality, research and development, engineering measurement requirement of the field and so on various occasions.
3. the screen stroboscopic test
It is mainly used to measure the flicker characteristics of the display screen.
4. incoming single LED photochromic electrical comprehensive performance test
The optical flux, optical efficiency, optical power, relative spectral power distribution, color coordinate, color temperature, main wavelength, peak wavelength, spectral half-width, color rendering index, color purity, red ratio, color tolerance, forward voltage, forward current, reverse voltage, reverse current and other parameters of the packaged LED were tested.
5. Incoming single LED light intensity Angle test
Test of single light intensity distribution of LED (light distribution curve), light intensity, the three-dimensional intensity distribution, intensity change with forward current characteristic curve, the forward current changing with forward voltage characteristic curve, the light intensity curve changes over time, beam Angle, luminous flux, forward voltage, forward current, reverse voltage, reverse current parameters, etc.
6. Light radiation safety test of display screen (blue light hazard test)
It is mainly used for the light radiation safety test of LED display screen. The test items mainly include theadiation hazard test of skin and eye photochemical UV hazard, eye near UV hazard, retinal blue light hazard, retinal thermal hazard and so on. The light radiation safety grade is evaluated according to the degree of hazard. It fully meets the requirements of IEC/EN 62471, CIE S009, GB/T 20145, IEC/EN 60598, GB7000.1, 2005/32/EC and other EU directives.
7. the display of electromagnetic compatibility EMC test
Carry out electromagnetic compatibility test for LED display screen and LED display module in accordance with relevant standards and requirements of display. The test items include EMI conduction interference test, electrostatic discharge (ESD), rapid transient pulse (EFT), lightning SURGE, cyclic drop (DIP) and related radiation disturbance, immunity test, etc.
8. the display power supply, harmonic and electrical performance detection
Mainly used for the display to provide AC, direct stable power supply conditions, and measure the display voltage, current, power, standby power consumption, harmonic content and other electrical performance parameters.

Routine test items

1, safety project:

Input current test, label to wipe test, energy level test, SELV test, current limiting circuit testing (LCC), limited power test (LPS), grounding continuity test, temperature and humidity (tide) test, drop, impact and other mechanical stress tests, the ball pressure test and normal temperature test, contact voltage, electric current test, insulation test voltage, abnormal test, yuan A fault testing, etc.

2, the EMC test project:

Conduction, radiation, harmonic, voltage fluctuation and flicker, electrostatic, RS, EFT, surge, CS, power frequency magnetic field, such as voltage sag.

Environmental reliability Testing

High and low temperature resistance test, heat and humidity resistance, high and low temperature impact, high and low temperature alternating, mechanical vibration, mechanical impact, low pressure (vacuum) test, IP grade, dustproof water release test, gas corrosion (single/multiple), salt spray corrosion test (neutral, acid, compound), etc.

Class specific tests

Battery charging and discharging test, impact test, impact test, drop test, ROhs testing, REACH, halogen detection, temperature and humidity environment test, failure analysis, components selection, pressure test, light aging test, sand and dust test, get wet in the rain test, vibration test, high speed test, mechanical shock test, biological environment test, salt spray test and reliable integrated environment Sex test, simulated packaging and transportation test, gas corrosion test, slice test, etc.

Energy efficiency test

Energy saving testing, energy efficiency testing

Electrical performance testing

Operating voltage, operating current, speed range, power, conductivity, dielectric constant, dielectric loss, field strength (breakdown voltage), etc

2. Certification services

The test report issued by Global Zhongyi has legal effect and can be used in scenarios such as the entry of supermarkets, product appeals, anti-malicious rights protection, and auctions (appeals and auctions must meet Party A's testing requirements).