Shenzhen Lianchengfa Technology Co., Ltd.

In today's information dissemination is highly dependent on the visual media era, LED display as a key window to convey information and create an atmosphere, once encountered the situation is not bright, just like the information lighthouse suddenly ‘off’, not only affecting the normal use, but also may cause business publicity interruptions, public service obstruction and other disturbances. Digging deep behind the causes, as if dismantling a precision instrument failure mystery, LCF editor will be from the hardware failure, software anomalies, external environmental factors and improper installation and use of dimensions such as layer by layer analysis.

First, hardware failure: the core components ‘strike’ hidden trouble

LED lamp beads as the display of the ‘pixel elves’, is a high incidence of failure. Prolonged high-load operation, poor heat dissipation, or quality defects, will make the lamp beads burned, aging damage, a single lamp bead failure is often ‘black spot’ ‘dark spot’, large area damage to the whole area of the black screen. Poor-quality lamp beads in the initial use may not be abnormal, but because of heat resistance, current impact resistance is weak, life is much lower than the quality products, easy to ‘collective death’ in a few months, especially outdoor screen by the heat and cold, wind and rain erosion, lamp bead failure risk soaring.

Driver chip and power supply is like a display ‘heart’ and ‘power pump’, the driver chip is responsible for accurate regulation of lamp bead current, voltage, once the failure, signal transmission disorders, the emergence of flower screen, the local not bright, more from the chip overheating, electrostatic breakdown, in a high temperature and humid environment or encounter strong electromagnetic interference. Environment or encountered strong electromagnetic interference, the fragile chip bear the brunt; power supply problem is more intuitive, overload burn, capacitor bulging, output voltage instability, will make the screen as a whole or part of the loss of ‘power’, utility power fluctuations in large areas, not equipped with a voltage regulator display power supply is often overwhelmed by the burden of the ‘sick! ‘.

Circuit board line short-circuit, disconnection like ‘vascular embolism’, corrosion, soldering, physical damage can cut off the current transmission path, the production process is rough, long-term vibration wear and tear, moisture erosion of the solder joints, are prone to in the smallest place ‘trouble’, resulting in the corresponding area of the display anomaly, the light portable rental screen frequent handling, the screen or part of the ‘power’. Thin and light portable rental screen frequent handling, splicing, line hidden trouble is more likely to be exposed.

Second, software abnormalities: command ‘garbled’ difficulties

Control software as the display ‘brain centre’, version incompatibility is a common ‘stumbling block’. After the upgrade of the new system, software adaptation lag, and graphics cards, send and receive card ‘miscommunication’, can not be sent to the normal display of instructions, the screen white screen, no signal input; parameter setting errors, resolution, refresh rate, scanning mode and the actual screen does not match the screen, the screen is distorted, torn, or simply do not display, novice misuse to change the key parameters, the display will be in a ‘daze’, the screen will be in a ‘daze’. After a novice changes the key parameters by mistake, the display will be in a ‘daze’, not knowing how to present the content correctly.

Virus attacks, software crashes like a ‘digital plague’, malicious programs to tamper with the control software running logic, destruction of driver files, networking display if weak protection, easy to download materials, update software ‘trick’, resulting in the software flashback, crash, the screen is paralysed, the public network of commercial premises, the environmental protection of the commercial premises, the screen will be in a state of ‘confusion’, do not know how to correctly present the content. The complexity of the public network environment in commercial places makes the risk of attacks on the display higher.

External environmental factors: natural ‘attack’ challenges

Extreme temperature test display ‘endurance’, high temperature so that the performance of electronic components decline, accelerated aging, plastic shell deformation, the northern summer sunshine outdoor screen internal super 60 ℃, lamp beads, chip life plummeted; cold so that the battery activity is reduced, cable brittle, Northeast winter screen start-up difficulties, lines are easy to fracture, LCD material response is slow, the screen drag, stuttering serious. Screen drag, lag serious.

Humidity and dust is a hidden ‘killer’, the southern rainy season, water vapour penetration shell, erosion of circuit boards, resulting in short circuits, corrosion of welded joints; dusty construction sites, roadside dusty environments, dust piles up cooling holes, covering the lamp beads, impede heat dissipation, reduce brightness, long-term electrical failure, ‘dusty’ between display health damage. ‘between the display health damage.

Lightning, electromagnetic interference like ‘air attack’, direct lightning or induction lightning instant high pressure can penetrate the power supply, chip, outdoor open without lightning protection facilities screen body ‘fragile’; the surrounding high-voltage power lines, communication base stations, large motors and other strong electromagnetic radiation, interference with signal transmission The screen appears garbled, flickering, busy urban areas, factories around the display is deeply disturbed.

Fourth, improper installation and use: the root cause of man-made ‘negligence’.

Installation links, if the structure is not stable, uneven force, screen body long-term distortion, extrusion, internal lines, parts damaged, wall-mounted wall non-load-bearing wall, bracket screws loose, large screen ‘shaking’ while displaying frequent failures; cable connection is not standardised, loose plugs, poor welding, increased contact resistance, signal interruption, hasty construction No strict testing, ‘hidden danger’ will be buried in the dark.

Daily use, illegal operation ‘add frost’, frequent power on and off, overload use, beyond the rated power of the screen for a long time running, accelerate component aging; cleaning and maintenance is not appropriate, with rough cloth, corrosive solvents, scratching the screen, erosion of the circuitry, good intentions to do bad things, step by step, will be pushed to the display screen ‘Not bright’ predicament. Clearly LED display is not bright multiple causes, to targeted investigation and repair, in order to let it regain its lustre, stable information display ‘position’.

The above is the LCF editorial analysis of the LED display is not bright reasons, I hope to help you, at the same time you are welcome to add or correct. LCF is a collection of R & D, manufacturing, sales, operation, service in one of the national speciality and speciality of the new small giant enterprises, national high-tech enterprises. If you need to buy LED electronic display friends can also directly contact the LED display manufacturer LCF, the big country brand, trustworthy!