In July 2007, Lin Haiwei of Guilin successfully settled in Haiwei Science and Technology Park of Guilin National Information Industry Park, and built a larger led production line here.
Gui Linhaiwei has a large number of high-tech talents with innovative spirit, innovative ability and vigorous energy, such as scientific research and engineering technology. We are willing to devote all our enthusiasm and wisdom to the society.
1. range
This standard specifies the definition, classification, technical requirements, inspection methods, inspection rules and packaging, transportation and storage requirements of LED display screens.
This standard is applicable to LED display products. It is the main technical basis for the design, manufacture, installation, use, quality inspection and formulation of various technical standards and technical documents of LED display products.
2. Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. Before the implementation of this standard in this enterprise, all versions shown are valid.
GB 19 1-90 graphic signs for packaging, storage and transportation.
GB2423. 1-89 basic environmental test procedures for electrical and electronic products test a: low temperature test method.
GB2423.2-89 Basic environmental test procedures for electrical and electronic products Test B: High temperature test method
GB2423.3-8 1 basic environmental test procedures for electriCal and electronic products-test ca: constant wet and hot test method.
GB4943-95 Safety of information technology equipment (including electronic equipment)
GB6388-86 Transport and Receiving Marks of Transport Packaging
Vibration test of electronic measuring instruments
Vibration test of electronic measuring instruments
Rules for quality inspection of electronic measuring instruments
GB98 13-88 general specification for micro digital electronic computers
GB 1 1463-89 reliability test of electronic measuring instruments.
SJ/T 10463-93 Requirements for Packaging, Marking and Storage of Electronic Measuring Instruments
3. Definition
This standard adopts the following abbreviations and definitions:
3. 1 LED
LED is short for light emitting diode.
3.2 LED display LED panel
Through a certain control mode, it is used to display text, text, graphics, images, animations, quotes, TV and video signals, etc. It is a display screen composed of LED device arrays.
3.3 display unit
The basic unit of LED display screen, which is determined by the circuit and installation structure, has the display function.
3.4 Fatal nonconformity with key defects
The use and maintenance of products or related personnel may cause hazards or unsafe conditions, or the important quality characteristics of unit products do not meet the requirements, or the quality characteristics of unit products do not meet the requirements seriously.
3.5 out-of-control point
The LED basic light-emitting points whose light-emitting state is inconsistent with the display state required by the control and are distributed discretely.
3.6 Pseudo-color LED panel with pseudo-color LED display screen
The led display screen composed of monochromatic LED devices with different colors is installed in different areas of the LED display screen.
3.7 full-color LED display full-color LED panel
The LED display screen composed of red, green and blue LED devices can adjust various colors.
classify
The LED display screen can be classified according to the following conditions:
4. 1 use environment
The LED display screen is divided into indoor LED display screen and outdoor LED display screen according to the use environment.
4.2 Display color
According to the display color, LED display screens are divided into monochrome LED display screens (including pseudo-color LED display screens), two-color LED display screens and full-color (three-color) LED display screens.
According to the gray scale, it can be divided into 16, 32, 64, 128 and 256 gray LED display screens.
4.3 Display performance
LED display screen is divided into text LED display screen, graphic LED display screen, computer video LED display screen, TV video LED display screen and market LED display screen according to display performance.
Quote LED displays usually include LED displays for securities, interest rates, futures and other purposes.
4.4 Basic luminous point
Among non-market LED displays, indoor LED displays can be divided into 3mm, φ3.7φ 5mm, 5 mm, 8mm, 0/0 mm and so on according to the single point diameter of LEDs. Outdoor LED display screen can be divided into φ 19mm φ 22mm and 26mm according to the pixel diameter adopted.
According to the size of LED display screen used in the market category, it is divided into 2.0cm(0.8 inch), 2.5cm( 1.0 inch), 3.0cm( 1.2 inch), 4.6cm( 1.8 inch) and 5.8cm(2.3 inch).