Since the 21st century, the new generation display and lighting industry and industrial chain based on organic light-emitting diode (O LED ) technology are rapidly developing in countries such as Europe, America, Japan, Korea and China. OLED is the abbreviation of Organic Light Emitting Diode (OLED). The principle of OLED illumination is similar to that of LEDs. The OLED utilizes the characteristics of an organic semiconductor material. Under the driving of an electric field, electrons and holes are combined on the light-emitting layer to form excitons. When the excited state falls back to the ground state, energy is released in the form of light waves. Different luminescent materials produce light of different wavelengths. O LED technology can be divided into small molecule OLED and polymer OLED according to different organic light emitting materials.
In the field of flat panel display, OLED has chemical DC drive, self-illumination, high brightness, high efficiency, wide viewing angle, low power consumption, ultra-thin, large-area display, complete luminous color, low manufacturing cost, long life, low temperature resistance, and work. The outstanding advantages such as wide temperature range are known in the industry as a new generation of flat panel display products and technologies after liquid crystal display (LCD) and plasma display (PDP).
With the technological advancement of OLED, OLED will enter the commercial application stage from the research and development stage. The OLED illumination featuring surface illumination will show potential advantages such as energy saving, environmental protection and other advantages compared with other lighting sources. Long-life, low-cost white OLED lighting products are the focus of development.
First, the basic structure of OLED and the principle of illumination
OLEDs can be divided into two main types, small molecules and polymers, and their structures are not the same.
Whether it is a small molecule OLED or a polymer OLED, there is an organic luminescent material layer between the thin and transparent conductive indium tin oxide (ITO film) cathode and the metal anode. The light-emitting layer of the small molecule OLED is a layered structure, that is, composed of three layers of a hole transport layer, a light-emitting layer and an electron transport layer, and the organic light-emitting layer of the polymer OLED has a single-layer structure.
Under the action of the external electrode, the electron generated by the cathode and the hole generated by the anode are respectively injected into the organic light-emitting layer. In the light-emitting layer, electrons and holes meet to form an exciton, and the excitons are attenuated to emit photons. Produces visible light. Radiation is visible through the glass or plastic substrate from the side of the transparent anode. The luminescent material and composition are different, and the color of the emitted light is different. By selecting different organic luminescent materials, red, green, and blue light can be obtained to achieve colorization. White light can be produced by mixing red, green, blue fluorescent materials or phosphorescent materials into an RGB device.
For small-molecule OLEDs, electrons and holes are first injected into the electron transport layer and the hole transport layer, respectively, and then injected into the light-emitting layer. In the light-emitting layer, electrons and holes meet and recombine, and are emitted due to the transition of the energy band. Visible light, it can be seen that the principle of OLED illumination is basically the same as that of LED, except that the material and structure are different.
Second, the application and development of OLED in the field of lighting
As OLED technology continues to improve, OLEDs will enter commercial applications in the field of lighting. OLED lighting features surface illumination, high brightness, large area, scattered light source, ultra-light, ultra-thin, flexible, transparent, mirror-type, new lighting design, etc. Compared with other lighting products, OLEDs show energy saving, high efficiency and low efficiency. The potential advantage, such as cost, is a new generation of solid-state lighting after LED solid-state lighting.
OLED lighting will have broad application prospects in LCD backlighting, office, home, automotive, aircraft interior lighting and targeted lighting, signage lighting, interior decoration, performance lighting and other functional aspects.
The thin and light-emitting features of OLEDs combine the softness and ductility of flexible substrates to give new design concepts for future room lighting. Room lighting will no longer be limited to a single luminaire, and illumination can achieve an overall lighting effect without the sense of lighting. Because OLED light source has different characteristics from traditional lighting, it will drive and expand the innovation and development of new O LED lighting design , lighting engineering, lamps and other related fields.
OLED lighting has the advantages of energy saving and environmental protection. With the increasing emphasis on environmental protection, the new non-polluting O LED backlight will be used as the LCD backlight. The traditional LCD backlight mainly uses cold cathode fluorescent lamp (CCFL), although the cold cathode fluorescent lamp has Very good characteristics, but it is easy to cause environmental pollution due to mercury, and the color saturation is not enough. The advantages of OLED's non-polluting, high color gamut make it the first choice for backlights for next-generation LCD products.
Our company focused in the metal field ,we not only produce Ground Screw,ground anchor ,earth anchor ,ground spike ,but also produce steel pickets,including Y Star Picket,T post ,Pile Driver,nail stake ,steel stake, and other metal products .
The Star Pickets mainly for Australian markets, new Zealand markets,USA markets,Israel markets .
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STUDDED T POST, METAL FENCE POST |
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MEASUREMENT |
SPEC |
5` |
5.5` |
6` |
6.5` |
7` |
8` |
10ft or other customized length |
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pct/mt |
pct/mt |
pct/mt |
pct/mt |
pct/mt |
pct/mt |
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LIGHT DUTY |
0.95lb/ft |
464 |
422 |
386 |
357 |
331 |
290 |
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1.10lb/ft |
400 |
364 |
334 |
308 |
286 |
250 |
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REGULAR DUTY |
1.15lb/ft |
383 |
348 |
319 |
295 |
274 |
239 |
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1.25lb/ft |
352 |
320 |
294 |
271 |
252 |
220 |
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HEAVY DUTY |
1.33lb/ft |
331 |
301 |
276 |
255 |
237 |
207 |
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1.50lb/ft |
291 |
268 |
243 |
227 |
210 |
184 |
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Hot Rolled Steel T Post Studded Fence Post
Material: Metal material,Q235/Rail steel
Hot rolled steel,high strength and durable
Painted T-posts:
Colorful paint in red or green with cream-color top
0.95 lb. light-duty studded t-posts used for gardens, safety, silt, and small animal fencing
1.25 lb. heavy-duty and 1.33 lb. studded t-posts used for large animals and areas receiving frequent use,also used for farm fence.
Uses an attached spade for stability
Manufactured from recycled rail steel
Galvanized T-posts:
1.25 lb. heavy-duty and 1.33 lb. studded t-posts used for large animals and areas receiving strong use
Zinc-coated to resist rust and corrosion
Uses an attached spade for stability
Manufactured from recycled rail steel
Studded t post that's easy to install,no holes to dig
Made of recycled material
Anchor plate locks the t-post straight and secure in any type of soil
Coated with rust-resistant water-based baked enamel paint
Hot dip galvanize coating more than 65um
More durable
Export to American countries
| Y Post/ Star Picket/ Star Posts/ Y Fence Post | |||||||||
| Measurement | 0.45M | 0.60M | 0.90M | 1.35M | 1.50M | 1.65M | 1.80M | 2.10M | 2.40M |
| SPEC | PCS/MT | PCS/MT | PCS/MT | PCS/MT | PCS/MT | PCS/MT | PCS/MT | PCS/MT | PCS/MT |
| 1.58kg/m | 1406 | 1054 | 703 | 468 | 421 | 386 | 351 | 301 | 263 |
| 1.86kg/m | 1195 | 896 | 597 | 398 | 358 | 326 | 299 | 256 | 224 |
| 1.9kg/m | 1170 | 877 | 585 | 390 | 351 | 319 | 292 | 251 | 219 |
| 2.04kg/m | 1089 | 817 | 545 | 363 | 326 | 297 | 27 | 233 | 204 |
| the quantity of holes for Australia and Newzeanland | |||||||||
| Length | 0.45M | 0.60M | 0.90M | 1.35M | 1.50M | 1.65M | 1.80M | 2.10M | 2.40M |
| Holes (Australia) | 2 | 3 | 5 | 11 | 14 | 14 | 14 | 7 | 7 |
| Holes (New Zealand) | 7 | 7 | 7 |
8 |
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Steel Picket For Fence,Steel Post,Steel Pile Driver, Star Picket,Fence Post,Steel Picket
BAODING JIMAOTONG IMPORT AND EXPORT CO., LTD , https://www.chinagroundscrew.com