The development of LED display industry in China

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Describes the development and current situation of the >LED display LED-display.cnLEDw.com/ "in China, the industry scale and nearly five years of sales, analyzes the characteristics of the industry, introduces the current situation of industry standards and technology, a new technology was proposed to display concern, looks forward to the prospect of the industry.

First, the development of the industry and the status quo

The development of the industry: China's screen industry started in the late 80s of last century, developed in 90s, matured in nearly five years. China's economic take-off, the display industry provides an excellent opportunity for development.

The current situation of the industry: the country more formal professional production units of nearly 300, employing more than twenty thousand, in 2005 the national output value of about RMB 4 billion, in 2006 there will be greater growth. State owned, private, joint venture, foreign capital and private enterprises. Small enterprises, the lack of large enterprises.

Industry Association: Chinese Guangxie LED display industry association was founded in early 1998, the existing more than and 170 member units. 1998 - Chinese Guangxie devices branch LED display special committee; 2000 - Chinese Guangxie branch LED display; 2006 - renamed China Guangxie LED display applications branch.

Employees: according to the trade association in 2005 to 110 member units statistics, employing 11380 people, the national practitioners estimated to be more than twenty thousand.

Industry sales revenue

2005 trade association member unit sales revenue 3 billion 341 million yuan

sales revenue

100 million

50 to 100 million

10 to 50 million

< 10 million

Number of member units

Seven

Sixteen

Sixty-four

Twenty-three

Percentage of total sales revenue

33%

52%

-

-

According to the statistics of 110 member units

2001 ~ 2005 LED display industry sales

According to statistical data of Trade Association member units

From 2001 to 2005 sales of full color LED display industry

According to Industry Association statistics

Exports of LED display industry from 2001 to 2005

According to Industry Association statistics

Industry characteristics

1, to private enterprises; enterprises less; 2, employees of the young; have independent intellectual property rights; 3, the industry growth speed; forming industry chain; 4, the more intense market competition; product quality to be improved.

Two, display industry standards

Industry standards being implemented

The name said

Release date

Standard number

Main drafting unit

General specification for LED display screen

2003

SJ/T 11141-2003

Lyad et al 9

Test method of LED display screen

2003

SJ/T 11241-2003

Penelope 9

Industry standard under examination and approval

The name said

Submittal date

Main drafting unit

Test method of LED display screen

2006

Penelope 9

Specification for LED display screen used in Gymnasium

2006

Covi

The function and content of general specification for LED display screen

- role: the main technology based on the display relevant technical standards and technical documents, display standard framework content: 1; 2 normative references; 3 terms and definitions; 4 classification; 5 requirements; 6 inspection methods; 7 inspection rules; 8 mark packaging transportation and storage

Ten general requirements for the general specification of LED display screen

1 LED display hardware requirements; 2 LED display software requirements; 3 structure and appearance; 4 safety requirements; 5 LED display function; 6 LED 7 LED display screen optical properties; electrical properties; 8 power supply; 9 environmental adaptability; 10 reliability requirements

The function and content of LED screen test method

-: "general specification for" LED display test method and display technology requirements (performance index) classification. Content:

Protection grade 1 housing; 2 module assembly accuracy; 3 maximum brightness; 4 perspective; the 5 highest contrast; 6 main wavelength error of primary colors; 7 white color coordinates; 8 brightness uniformity; 9 Differential grades; 10 frame frequency; 11 refresh frequency; 12 duty cycle; 13 module loading rate of 14; gray level 15; signal-to-noise ratio; 16 pixel rate control

Other standards of LED display

1, the "sports venues equipment requirements and test methods (first part: LED)", "2 National Sports Commission passenger information display standard" LED mor 3, "freeway variable information board standard" traffic department 4, "standard" freeway variable speed signs traffic department 5, "city traffic guidance information board standard" Ministry of public security

Three, China's LED display technology

Photoelectric device 1, high-end display using the most advanced LED light emitting device 2, international brand enterprises are concerned and enter the China photoelectric LED display market, international brands, domestic brands and non brand products coexist in optoelectronic device driver chip

function

Application occasions

Main representative