What are the common problems with LED displays ? LED display (LED display) is a flat-panel display, which is composed of small LED module panels and is used to display various information such as text, images, videos, and video signals. LED attaches great importance to anti-static measures. The following are several instructions for static electricity and anti-static:
Sources of static electricity
The main sources of static electricity that affect circuits include the human body, plastic products and related equipment and instruments. Among them, the static sources from the use environment include the following:
objects, materials
Floors, work tables and chairs
Work clothes, packaging containers
Painted or waxed surfaces, organic and fiberglass materials.
Concrete floors, painted or waxed floors, plastic tiles or floor leather.
Chemical fiber work clothes, non-conductive work shoes, clean cotton work clothes.
Plastics, boxes, boxes, bags, trays, foam liners.
Electrostatic discharge failure
Sudden failure and latent failure.
The electrostatic failure of the LED display in the use environment is more than 90%, which is a potential failure, which is manifested in the weakening of the circuit's ability to withstand electrical overstress and shortening its service life.
Anti-static measures
Provide training on static electricity knowledge and related techniques to personnel who use static electricity sensitive circuits.
Establish an anti-static work area, use anti-static flooring, anti-static workbench, anti-static grounding leads and anti-static equipment in the area, and control the relative humidity above 40.
The harm caused by static electricity to electronic equipment can occur anywhere from the manufacturer to the equipment in the field. Hazards are caused by inadequate, effective training and equipment failure. LED displays are devices that are sensitive to static electricity. INGAN wafers are generally considered to be "first" susceptible to interference. And ALINGAP LEDS SHI "Second" or better.
ESD damaged devices can display dim, blurry, off, short or low VF or VR. Equipment damaged by ESD should not be confused with electronic overstress due to faulty current design or drivers, chip mounting, wire shield grounding or encapsulation, or general environmentally induced stress.
ESD safety and control procedures: Most electronic and electro-optical companies are very similar to ESD and have successfully implemented ESD control, manipulation and master procedures for all equipment. These procedures have been used since ancient times for ESD instruments to detect quality effects. ISO-9000 certification also lists him as a normal control procedure.
Shipping and packaging
During daily operation, ESD-sensitive equipment should always be stored in anti-static bags or containers. This includes inventory, shipping and WIP. Precautions during transportation include consuming fleets, boxes, or other equipment such as wheels or tractor-trailers with conductive wheels, and grounding ESD equipment during transportation.
LED companies face development opportunities. First of all, although there is a certain gap between China and the United States, Japan, and the European Union in production technology of upstream LED epitaxial wafers and chips, due to the huge application demand in domestic and foreign markets, and the diversification of the end consumer market The decentralized structure makes it difficult to form a market monopoly, thus bringing huge development opportunities to LED downstream manufacturers. Especially for mainland Chinese companies that are relatively backward in technology, there is a large space for survival and development.
Secondly, it is due to the Chinese government's active promotion of the industrialization of LED displays . In 2003, an inter-ministerial national semiconductor lighting coordination leading group was established and the "National Semiconductor Lighting Project" was launched. The national "863" program has also invested corresponding funds in relevant enterprises and research institutions to support basic research and technology research and development.