LED electronic display general specification criteria
LED electronic display general specification criteria
1, scope this criterion specify the LED display the definition, classification, technical requirements, test method, inspection rule and sign the packing and shipping storage requirements. This standard applies to the LED display products. It is the LED display product design, manufacture, installation and use, quality inspection and formulate various technical standard and technical documents of the main technical basis. 2, the reference standard
The following standards contain provision which, through reference in this standard, constitute provisions of this standard. In standard at time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate use the following standard the latest version of possibility.
GB191-90 packaging transportation shown signs
GB2423.1-89 electrical and electronic products basic environment standard test test A: low temperature test method
GB2423.2-89 electrical and electronic products basic environment standard test test B: high temperature testing method
GB2423.3-89 electrical and electronic products basic environment standard test test Ca constant humidity &heat experiment method
Carries - 95 information technology equipment (including electric affairs equipment) safety
GB6388-86 transportation and packing the importer or exporter symbol
GB6587.4-86 electronic surveyinginstrument vibration test
GB6587.6-86 electronic surveyinginstrument transportation test
GB6593-86 electronic surveyinginstrument quality inspection rules
GB9813-88 miniature digital electronic computer general technical conditions
GB11463-89 electronic surveyinginstrument reliability testing
SJ/T10463-93 electronic surveyinginstrument package, mark, storage requirements
3, and set the righteousness
This standard adopts the following abbreviations and definition:
3.1 LED EMItting diode LED EMItting diode ligth light-emitting diodes abbreviations
3.2 LED display panel LED through certain control mode, to display text, graphics, text, images, animation, market, etc. Various kinds of information and TV, video signal and the LED display screen devices array group.
3.3 display element put unit by circuit and installation structure to determine its display of and the composition of the smallest unit of the LED display.
3.4 fatal defect critICal of unqualified products use, maintenance, or in connection with the personnel may cause damage or unsafe conditions of unqualified products, or unit of an important characteristic of quality characteristics of serious is not in conformity with the provisions.
3.5 out of control points out - - control point luminous status and the control requirements of display state is not consistent with a discrete awarded LED basic luminous points.
3.6 false color LED display panel pseudo - color leds in LED screen different regional install different colors of the single color leds components of the LED display.
3.7 full-color LED display all - color leds panel by red, green, blue three colors LED parts and can mix a variety of colour of the LED display.
4, classification
The LED display but basis classification of the following conditions:
4.1 use environment:
The LED display by use of indoor environment is divided into LED display and outdoor LED display.
4.2 display colors:
The LED display according to display colors divided into the single color LED display (including false color LED display), double colors LED display and full color (three colors) LED display. According to the gray level and can be divided into 16 and 32, 64, 128, 256 level gray LED display, etc.
4.3 display performance:
The LED panel according to display performance is divided into text LED display, graphic LED display, computer video LED display, television video LED display and market LED display, etc. prices
The LED display generally includes securities, interest rates, futures and the USES of the LED display.
4.4 basic shine points:
The prices of the LED display, indoor the LED display according to adopt LED single-point diameter can be divided into Φ 3mm, Φ 375mm, Φ 5mm, Φ 8mm, and Φ 10mm etc screen, Outdoor LED display by using the pixel diameter can be divided into Φ 19mm, Φ 22mm and Φ mm26 etc LED display. Prices of the LED display in accordance with the digital pipe size can divide 2.0 cm (0.8 cm (a), 2.5 1.0 cm (a), 3.0 1.2 a), 4.6 CMM (1.8 a), 5.8 cm (2.3 7.6 cm (a), 3inch) LED display.
5, requirements
5.1 LED display hardware using environment
The LED screen hardware part includes according to the LED display type, area, the use of general computer to determine the condition such as part, communication lines, special data conversion parts and display section. The detailed specification should inform:
A. in computer host, all sorts of matching card, external equipment and communication interface requirements;
B. to a communications line of the request and indicate the biggest communication distance,
C. data conversion section and mainframe computer methods of communication;
D. power supply requirements and structure installation requirements.
5.2 LED display software using environment
With different performance of the LED panel should configure can meet the requirements of the display function display software that has the following functions:
A. accord with seriation, standardization requirements, can backward compatibility,
B. adopted in detailed specification stipulated in the operating system and language,
C. equipped with the prefect self-checking procedures and equipped with various levels according to need the diagnostic program;
D. for special purpose LED display equipped with its corresponding special software.
5.3 structure and appearance
5.3.1 structure: the LED sign sections can adopt aluminum, steel, wood materials. Request structure strong and beautiful.
5.3.2 appearance: the LED display the casing outside without obvious scratches. Outdoor LED display pixel pipe installation should be consistent, without loosening and tube and shell broken columns.
5.4 safety requirements
The LED display of provisions of I class carries safety equipment.
5.4.1 LED display protection grounding terminals.
5.4.2 safety mark
5.4.2.1 LED billboard protect a grounding wire due mark.
5.4.2.2 LED display in fuse and switching power supply place is due warning signs.
5.4.3 to floor drain current: LED display of floor drain current must not exceed 3.5 mA (ac RMS).
5.4.4 resistance electric intensity: the LED display can 50Hz, 1500V (ac RMS) test voltage 1min should not happen insulation breakdown.
5.4.5 temperature LED display is party when used in reach thermal equilibrium of metallic parts after temperature does not exceed hard 45K, insulating material temperature of not more than 70K.
5.5 LED display performance characteristics
Text LED display and script LED display should have in detailed specification stipulated in the move moves out of way and display mode.
Computer video LED sign should have: animated functions. Request the LED display animation display and computer monitors corresponding region shows correspond, Text display function. Request text indicate that the stability, clear crosstalk, Gray function. With the detailed specification requirements specified in level gray. Television video LED display banish with animation, text display, gray function outside, should show TV, video screen. Market LED display with corresponding market shows ability.
5.6 uniformity
Should be in detailed specification stipulated in LED display uniformity of the request.
5.7 out of control points
Indoor LED display of out of control points is not more than three million, outdoor LED billboard of out of control points should be not in 3/1000; And for discrete awarded.
5.8 power supplies
The LED display of the power supply for 220W & # 177; 10%, 50Hz & # 177; 5% or 80V & # 177; 10%, 50HXZ & # 177; 5% in detailed specification shall be specified in various LED display unit shows the largest area of power or the LED display total power consumption.
5.9 environmental worthiness
5.9.2.1 temperature:
Indoor screen ambient temperature is: working environment; 00C low-temperature: High temperature: + 400C. Storage environment temperature: - 400C; High temperature: + 600C. Outdoor screen of ambient temperature is: working environment temperature: optional - 100C; at 200C, - High temperature: + 500C. Storage environment temperature: - 400C; High temperature: + 600C.
5.9.2.2 damp and hot: the maximum operating temperature, the outdoor LED display should be able to in relative humidity is 90% under the condition of normal work completely.
5.9.3 vibration: the LED display inherit cars, trains, planes as the transportation, loading and unloading, move by the vibration. On-board screen can be installed in the vehicle in the operation of the normal work.
5.9.4 transportation: the LED display can be used cars, trains, planes as ordinary transport transportation.
5.10) requirement of reliability
The LED display display element of average trouble-free MTBF (ml) time not less than 10000h.
6 and inspection methods
6.1 LED display hardware using environment
Use visual way check the LED display hardware use environment, should comply with the 5.1 requirements.
6.2 LED display software using environment
Use visual way check the LED display software use environment, should conform to 5.2 requirements.
6.3 structure and appearance
Use visual way check the LED display of structure and appearance, should conform to 5.3 requirements.
6.4 safety requirements
6.4.1 grounding: use visual way check the LED display, should satisfy 5.4.1 requirements.
6.4.2 safety sign: use visual way check the LED display safety mark, should satisfy 5.4.2 requirements.
6.4.3 to floor drain current: in 1.1 times rated supply voltage, power supply cord to test the LED display the casing outside the metal to floor drain current between 5.4.3, should satisfy the requirements.
6.4.4 resistance electric intensity: the LED display the power switch at the location in the power input and metal outer frame or palpable metal structure by applying the 1500V (ac RMS), 5.4.4 1min shall meet the requirements.
6.4.5 temperature: the LED display at work after an hour with dot thermometers test each palpable point temperature, should satisfy 5.4.5 requirements.
6.5 performance characteristics:
According to the LED screen different kinds of LED display performance characteristics for examination, should satisfy 5.5 requirements. To text, pictures and LED display using show test software through visual inspection move moves out of way and display mode. For computer video LED display through visual with projected computer animation, compared with animated functions, check the LED display and computer monitors on a check text indicate that the function, use special test software to check its grayscale function. To television video LED display banish above animation, text, gray function testing outside, also should have the video source check TV, video functions. To all sorts of market LED display, should use the corresponding measure try to check its market shows the function of software.
6.6 uniformity: use visual way check the LED screen the uniformity of the show, should satisfy 5.6 requirements.
6.7 points: use visual way out inspection LED display out of control points, should satisfy 5.7 requirements.
6.8 power supplies: use watt meter to measure the LED display of the power supply, power, should satisfy 5.8 requirements.
6.9 environmental worthiness
6.9.1 high temperature loading test
High temperature load test according to the provisions of GB2423.2 of display elements. On indoor screens in (40 & # 177; 2) 0 c condition, to the outdoor screen in (50 & # 177; 2) 0 c condition electrify work • every hour, inspected. For text LED screen and script LED display check move moves out of way, showing the way, uniformity and out of control points. For computer video and television video LED display check animation function, text indicate that the function, gray function, uniformity and out of control points. To quotation LED display on market display function test. All should satisfy 5.5 and 6.6 and 5.7 requirements.
6.9.2 heat storage test
High temperature storage test according to the provisions of GB2423.2 of display elements. In (60 & # 177; 2) 0 c condition storage 4h, at room temperature, to restore 4h text LED display and script LED display check move moves out of way, showing the way, all DianDing sexual and out of control. For computer video and television video LED display check animation function, text indicate that the function, gray function, uniformity and out of control points. To quotation LED panel on market display function test. All should satisfy 5.5, 5.6 and 5.7 requirements.
6.9.3 hot and humid loading test
Hot and humid load test according to the provisions of GB2423.3 of display elements. On indoor screens in (40 & # 177; 2) 0 c, relative humidity for 87% - 93 percent of the condition, to the outdoor screen in (50 & # 177; 2) 0 c, relative humidity for 87% - 93 percent under the conditions of the job, each hour • made.put into a in fixed. For text LED panel and script LED display check move moves out of way, showing the way, uniformity and DianDing out of control. To quotation LED display on market function test. All should satisfy 5.5, 5.6 and 5.7 requirements.
6.9.4 constant wet-hot tests
Constant wet-hot tests according to the provisions of GB2423.3 of display elements. On indoor screens in (40 & # 177; 2) 0 c, relative humidity for 87% - 93 percent of the condition, to the outdoor screen in (50 & # 177; 2) 0 c, relative humidity for 87% - 93 percent under the conditions of storage 48H. Storage after testing, immediately to floor drain current, resisting electrical strength and temperature measurement, should satisfy 5.4.3, 5.4.4, 5.4.5 to requirements. Again in room temperature under the environment of text, after recovery 4HLED panel and script LED display check move moves out of way, showing the way, uniformity and out of control points. For computer video and television video LED display check move moves out of way, showing the way, uniformity and DianDing out of control. For computer video and television video LED display check animation function, text indicate that the function, gray function, uniformity and out of control points. To quotation LED display on market display function test. All should satisfy 5.5, 5.6 and 5.7 requirements.
6.9.7 vibration test
The provisions of BG6587.4 vibration test of display elements. In vibration frequency 5H - 55H - 5H, amplitude s MM, under the condition of 5IMN scanning time, two direction, each direction scanning second. After testing of text, LED display and script LED display and script LED display check move moves out of way, showing the way, uniformity and out of control points. For computer video and television video LED display check animation function, text indicate that the function, gray can, uniformity and out of control points. To quotation LED display and graphic display on market LED sign function test. All should satisfy 5.5, 5.6 and 5.7 requirements.
6.9.8 transportation test
According to the provisions GB6587.6 shipped test taxi level circulation conditions on display element. After testing. For text LED display and script LED display check move moves out of way, showing the way, uniformity and out of control points. For computer video and television video LED display check animation function, text indicate that the function, gray function, uniformity and out of control points. To quotation LED display on market display function test. All should satisfy 5.5, 5.6 and seven requirements set. On-board move work of the LED display, should undertake on-site transportation test.
Composites reliability testing
According to the provisions of GB11463 reliability test of display elements. A = 20%, B = 20%, the DM = 3.0. Also allows prescribed by the contract for reliability demonstration test stand.
7 inspection rules
7.1 inspection items
7.2 appraisal inspection
7.2.1 appraisal appraisal testing and inspection into design production appraisal inspection.
7.2.2 appraisal inspection by the superior designated department or entrust quality testing unit shall be responsible for.
7.2.3 sampling methods and inspection items
7.2.3.1 in LED sign hardware using environment, software environment, structure and appearance, safety requirements and performance characteristics, uniformity and runaway sex, the power supply, the inspection shall meet the requirements to 5.1-5.8.
7.2.3.2 from 7.2.3.1 qualification check the LED display random sampling has set of display elements on schedule. 9 environmental worthiness inspection.
7.2.3.3 for the identification of the LED display on schedule. 10 requirements of reliability testing. Using GB11463 provisions of the timing terminated testing experiment plan 1-2.
7.2.3.4 to design appraisement of the LED display on the site using test.
7.2.4 qualified criterion in advance. 7.2.3.2 2.3.1, inspection, allowing appear second non-lethal unqualified, more sentences is not qualified.
7.2.3.3 inspection shall conform to the GB11463 requirements.
7.2.3.4 inspection should conform to this standard and LED display enterprise standards.
7.3 quality consistency inspection
7.3.1 quality consistency inspection divided into A group of inspection, group C test and inspection group F.
7.3.2 group A test
7.3.2.1 group A test for the LED display the basic requirements of the inspection.
7.3.2.2 group A inspection item according to the provisions of the expression. The outdoor LED display need by sets of inspection. For any unqualified products are needed to return the production department to provide inspection, after the restoration.
7.3.2.3 group A inspection by the LED display production unit quality inspection department or entrust quality testing unit shall be responsible for, purchasing FangKePa representatives to participate.
7.3.3 group C inspection
7.3.3.1 group C inspection for environmental worthiness inspection.
7.3.3.2 batch production of products, production and uninterrupted time than months, each batch should conduct environmental adaptability tests for the continuous production products once a year environmental worthiness inspection. To change design, engineering, main components and materials, want to undertake environmental worthiness inspection.
7.3.3.3 environmental worthiness inspection by the LED display production unit quality inspection department or entrust quality testing unit shall be responsible for. In group A quality consistency inspection qualified display unit taking random achieved sets, conducting environmental adaptability test.
7.3.3.4 adaptability for environment inspection the whole process allows appear second non-lethal unqualified. After the repair from appearing unqualified project up continue inspection. Adaptability to the environment inspection unqualified LED display, banning factory. And needed for all work-in-progress and finished goods inspection again. Find always causes afresh after conducting environmental adaptability test.
7.3.3.5 by environmental adaptability test samples shall be printed with markers, should not as quality goods leave the factory.
Sections 7.3.4 group F inspection
7.3.4.1 group F inspection for reliability test. Using GB11463 prescribed sequentially censored test plan is 2-3
7.3.4.2 batch production product, every year should carry on the reliability test, continuous production of difficult once the reliability test products for two years, change of main design, process, main components and materials to the reliability test.
7.3.4.3 reliability test by the LED display screen production unit quality inspection department or entrust quality testing unit shall be responsible for. In quality consistency inspection qualified display unit in accordance with the requirements GB11463 extraction samples for reliability testing.
7.3.4.4 for reliability test unqualified LED display, banning factory. And needed for all work-in-progress and finished goods inspection again. Find always causes afresh after the reliability test.
7.3.5 quality qualified determination in the first paragraph inspection shall conform to the standards and requirements for A - group F inspection shall all be qualified. Quality consistency inspection qualified.
8, marks the packing and shipping storage
LED display package, mark and storage shall conform to the requirements of 10463 SJ/T.
8.1 sign
8.1.1 product marks
8.1.1.1 should be in LED display proper position installed nameplates.
8.1.1.2 nameplate shall contain the following content
A. trademark,
B. product name or model,
C. production date,
D. name of manufacturer.
8.1.2 packing mark indoor LED screen outside packaging symbol should comply with the GB6388 requirements
A. the product model and the name;
B. trademark,
C. name of manufacturer,
D. "up", "carefully handled", "fear of wet" icon marks, which marks shall conform to the provisions of GB191.
E. marked on the product quantity, gross weight and loading date.
820 packaging
8.2.1 with accord with outer packing mark prescribed packing packaging.
8.2.2 packing must comply with moistureproof, vibration isolators, antisepsis requirements.
8.2.3 per batch of packing should be installed in the calibration of box product inspection certificate, packing list, spare parts accessories list and random documents list.
8.3 transport packaging good product available any vehicles carrying, but transportation process should avoid rain attacks, sun longer drying, contact corrosive gas and mechanical damage.
8.4 storage LED display storage temperature range 0-400C, relative humidity is not more than 80%, surrounding environment without acid and alkali and corrosive gas, and has no strong mechanical vibration, impact and strong magnetic field effect.
