LED, OLED main application areas and feasibility analysis
Green and low carbon have become one of the main themes of technological innovation and development. Energy conservation and environmental protection are urgent, and the development and utilization of resources needs sustainable development. exhibition. Since 2003, most of the country has experienced a new round of power shortages. The shortage of electricity has promoted the development of electricity, but at the same time It also triggered our thinking about alternative energy and new energy. The electric energy accounts for about 1/6 of the total electricity consumption. For example, one third of the domestic incandescent lamps are replaced by LEDs, which can save the country a Three Gorges Project every year. Annual power generation. There are products, below we do a simple analysis of the field and feasibility of LED and OLED applications. It is strictly forbidden to use high-brightness and high-energy lamps such as powerful searchlights, high-power floodlights, large-area neon lights, color bubbles, and beautiful lamps. Organic white Light LEDs are particularly suitable for the development of indoor lighting, such as wallpaper lighting, flexible, transparent lighting, corridor lighting (anti-air), landscape lighting. Lines, faces, balls, shaped, and even artistic sculptures. Inconsistent, people have limited use requirements and application knowledge of LEDs, and there are still big problems in the application of LED in the lighting and advertising industries. The formation of many LED projects is indeed very beautiful at first, but it will soon lead to the phenomenon of "small flowers", which makes LEDs in large-scale lighting and Insufficient confidence in advertising applications. It mainly has the following four problems: It has been widely used on the radio, and for the DC and mobile phones that belong to the same digital products, it has only been shown at some exhibitions to adopt the OLED screen. The engineering samples have not yet entered the stage of practical application. But OLED screens have many advantages that LCDs can't match. These organic materials illuminate as the flow passes. O LED and the display screen can be made lighter and thinner, larger viewing angle, and can significantly Save energy. Let's take a look at the advantages and disadvantages of OLED: Difficult to wait for defects. Color lighting and display areas, white LED, large MOVD equipment, laser display technology, organic light-emitting materials OLED, three-dimensional display and FED Innovations and applications of materials and new technologies will rewrite our expectations for LEDs and OLEDs. Corn Sheller,Hand Corn Sheller,Corn Sheller Machine,Hand Crank Corn Sheller Hunan Furui Mechanical and Electrical Equipment Manufacturing Co., Ltd. , http://www.frcornthresher.com
China's development of new energy and energy, the goal of 2010-2012 alternative energy will provide 15%-30% of energy demand, while China's lighting consumption
LED and OLED appear to be the future energy-saving experts in the eyes of the world, but in the current application field, LED, OLED can not completely replace the original
LED application field We first look at the application field of LED; LED is mainly used in the large-scale use of multi-source decorative garden lights in the main urban areas of various cities.
Feasibility analysis of LED in lighting and advertising industry applications We look at the advantages of LED in landscape decoration and lighting:
1. Low voltage power supply - no high voltage link, low cost and high reliability;
2, the symbol is simple without starter, ballast or ultra-high voltage transformer;
3, the structure is simple and has the greatest advantage of solid light source, no inflation, no glass casing, no gas sealing problem, impact resistance;
4, good controllability, fast response time (on the order of microseconds), can be repeated frequently and repeatedly, basically no inertia, not tired;
5, the color is pure and the color is generated by the semiconductor PN junction itself, pure and thick;
6, color rich three primary colors plus digital technology, can evolve any color,
7. Lightweight structural materials, low requirements on the strength and rigidity of the luminaire;
8. Small and small LED lamps are composed of LEDs, and the smallest LED is only on the order of square millimeters or less;
9. Good plasticity The compactness of the LED light source enables the LED to adapt to various geometrical dimensions and different space sizes for decoration and lighting requirements, such as:
Although the advantages and development prospects of LED are very obvious, at this stage, due to the rapid development of LED technology, the level of technology is uneven.
1. The actual service life has a certain difference from the theoretical value;
2, a certain degree of dead light phenomenon;
3, electrostatic damage is serious;
4. There is a certain light decay.
Let's look at the field of OLED applications. OLED is also known as organic electro-laser display. Since it has the characteristics of lightness and power saving, since 2003, this display device has been broadcast on MP3.
OLED feasibility analysis
OLED display technology is different from traditional LCD display, no backlight, no very thin organic material coating and glass substrate, when there is electricity
First, the advantages of OLED
1, the thickness can be less than 1 mm, only 1/3 of the LCD screen, and the weight is also lighter;
2, solid state mechanism, no liquid material, so the seismic performance is better, not afraid of falling;
3, there is almost no problem of viewing angle, even if viewed under a large viewing angle, the picture is still not distorted;
4, the response time is one thousandth of the LCD, showing that the moving picture will never have a smear phenomenon;
5, low temperature characteristics, can still display normally at minus 40 degrees, and LCD can not do;
6. The manufacturing process is simple and the cost is lower;
7, the luminous efficiency is higher, the energy consumption is lower than the LCD;
8. It can be fabricated on substrates of different materials and can be made into a flexible display that can be bent.
However, although OLEDs with better technology will replace LCDs such as TFTs in the future, organic light-emitting display technology has a short life span and a large screen size.
Second, the shortcomings of OLED
1, the life is usually only 5,000 hours, less than the life of the LCD at least 10,000 hours;
2, can not achieve mass production of large-size screen, so currently only applicable to portable digital products;
3, there is a problem of insufficient color purity, it is not easy to display bright, rich colors.
Regardless of the LED or OLED field, most companies have not yet achieved mass production of related products, and there is huge uncertainty in future profit contribution. In green