TV display technology has undergone many changes. Following CRTs and LCDs, OLEDs have become the most closely watched next-generation display technologies. Although mainstream LCD TVs are now being enhanced with a large number of new technologies, OLED TVs are inherently Many advantages still remain beyond their reach. Let's take a look at the inherent advantages of OLED that cannot be compared.
OLED structure is simpler
OLED is also known as "Organic Light-Emitting Diode" technology. It was discovered in the laboratory by a Chinese-American professor Deng Qingyun. The display technology has self-luminous characteristics and is coated with a very thin organic material. With glass substrates, these organic materials emit light when current passes through them.
OLED and LCD structure comparison
If OLEDs are compared with traditional LCD structures, the biggest feature of OLEDs is that they do not require liquid crystals, do not require backlights, and each pixel can emit light autonomously. The structure of the OLED is indeed simpler from the figure, and it is precisely this structural design that makes it With excellent performance beyond the tradition.
More pure black scene
Because the self-emission light is self-illuminated, when the black scene is displayed, all self-emission pixels are in a state of not emitting light, so the picture can be completely black, and the common light leakage problem of the LED panel TV will not exist, and the picture is closer to the reality. status.
OLED bursts LCD when performing black scenes
Black and black on the screen when playing a movie
Due to the different display principles of OLED TVs, the advantages of LCD TVs in terms of picture quality are also reflected in its contrast. Since all OLED pixels are self-illuminating, theoretical contrast is infinite, and thus can be perfect. Black display; LCD TV can not completely block the light of the backlight, inevitably light leakage and halo phenomenon, and most of the traditional LCD TV contrast less than 5000:1, when playing a pure black screen is dark gray.
A wider viewing angle
Although today's LCD IPS hard screens rely on outstanding perspective performance to win the favor of the market and consumers, there are still some dead ends. On OLED TVs, the expressiveness of perspective can be greatly improved. It is not an exaggeration to say that it has no dead ends, and even the effect of viewing it from some extreme angles is basically the same. With such technical support, the emperor's place in the living room loses its significance.
OLED TV is born slim
Skyworth OLED TV S9300 with a thickness of 5.27mm
The advantages of OLED technology are not only reflected in the picture quality, but also provide favorable conditions for the design innovation of today's smart TVs. Because no backlight is needed, the thickness of the OLED panel can be lower than that of the LCD panel. Therefore, the thickness of the OLED TV can be further reduced. For example, the thickness of the Skyworth S9300 TV body released last year is only 5.27mm, and according to related news, Skyworth this year shows An OLED TV with a thickness of only 1mm will also be released, and it is worth looking forward to.
OLED development gradually maturing
OLED has been hailed by the industry as the future development direction of the TV industry. Skyworth is at the forefront of OLED technology development and promotion. It not only takes the lead in realizing 4K OLED organic TV mass production, but also creatively integrates OLED and HDR top two color TV cutting-edge technologies. OLED TVs with HDR technology provide more dynamic range and image details that better reflect the visual effects of the real environment.
OLED TVs are developing fiercely and are coming to us quickly. More and more color TV companies have turned their attention to this display technology that represents the future. Nowadays, more and more OLED TVs are on the market, when TVs are purchased. There is one more choice, of course, but the higher price also hinders its speed of entry into the average family.
Product Description
SPD Surge Protective Device,Lightning Surge Protector
Surge Protection Device (SPD)
It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component.
Surge protective Device Model Selection
With the impact of international information flow, the rapid development of microelectronic science and technology, communication, computer and automatic control technology, make the building start to go for high quality, high functional area, formed a new building style-intelligent building. As inside the intelligent building there are lot of information system, <<Building lightning protection design norm>> GB50057-94(2002 vision)(hereafter brief as <<lightning protection norm>>) put forward the relative requirement to install the surge protective device, to ensure the information system safely and stable running.
SPD essentially is a equipotential connection material, its model selection is according to the different lightning protection area, different lightning electromagnetic pulse critical and different equipotential connection position, decide which kind of SPD used in the area, to achieve the equipotential connection with the common earth electrode. Our statement will based on SPD's maximum discharge current Imax, continuous operating voltage Uc, protection voltage Up, alarm mode etc.
As per << Lightning Protection Norm>> item 6.4.4 stipulation "SPD must can withstand the expected lightning current flow and should confirm to the additional two requirements: the maximum clamp voltage during surge across, capable to extinguish the power frequency follow-on current after lightning current across." That is the value of SPD's max. clamp voltage add its induction voltage of two ends should be same with the system's basic insulation level and the equipment allowed max. surge voltage.
SPD for Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of Low Voltage Electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
SPD for power supply system specification selection principle
Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage.
TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
TN System: Uc≥1.15Uo
IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
SP1 Series
Normal Working Conditions
-Altitude not exceed 2000m
-Ambient air temperature:
Normal range: -5ºC~+40ºC
Extend range: -40ºC~+80ºC
-Relative Humidity: 30% - 90% under indoor temperature condition
- At the place without obviously shaking and shock vibration
- Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust)
Classification
-As per Nominal Discharge Current:
5,10,20,30,40,60KA(8/20µs)
- As per Maximum continuous operating voltage:
275V,320V,385V,420V,440V,460V
- As per to poles
1P,1P+N,2P,3P,3P+N,4P
- As per auxiliary functions:
a. With remote signal output ( remote alarm function)
b. Without remote signal output
Selection Principle
- The continuous applied voltage on the two terminals of SPD should not more than the maximum continuous operating voltage Uc value;
- The voltage protection level Up of SPD should less than the maximum impulse withstand voltage of the protected equipment;
- As per to the different earthing system and protection mode to select the specification accordingly;
Product Features
1, built-in over-current overheating, temperature control circuit technology.
2, the module design, easy installation, online replacement.
3, low leakage current, fast response time, low residual voltage.
4, alarm indication device, green (normal) v red (fault).
| Model/Technical Parameters | WR-B60 | WR-B80 | WR-B100 | WR-B120 | WR-B150 |
| Rated Operating Voltage Un (V ~) | 220V 380V | 220V 380V | 220V 380V | 220V 380V | 220V 380V |
| Maximum Continuous Operating Voltage Uc (V ~) kV | 385V 420V | 385V 420V | 385V 420V | 385V 420V | 385V 420V |
| Voltage Protection Level Up (V ~) kV | ≤1.8≤2.2 | ≤2.4≤2.5 | ≤2.5≤3.2 | ≤3.4≤3.7 | ≤4.0≤4.5 |
|
Maximum Discharge Current Imax(8/μ20μs)kA |
60 | 80 | 100 | 120 | 150 |
|
Nominal Discharge Current In(8/μ20μs)kA |
30 | 40 | 60 | 80 | 100 |
| Response Time | <25 | <100 | |||
| L/N(mm²)The Cross Section Of L/N Line | 16,25 | 16,25 | 16,25 | 16,25 | 25,35 |
| PE (mm²)The Cross Section Of PE Line | 16,25 | 25,35 | 25,35 | 25,35 | 35 |
| Fuse or Switch (A) | 63A | 63A | 63A,100A | 63A,100A | 63A,125A |
| The Line Section of Communication and Alarm (mm²) | ≥ 1.5 | ||||
|
Operating Environment-C |
(-40ºC~-+85ºC) | ||||
| Relative humidity 25 ºC | ≤95% | ||||
| installation | Standard Rail35mm | ||||
| Material of Outer Covering | Fiber Glass Reinforced Plastic | ||||
Surge Protector SPD,Surge Protection Device SPD,SPD
Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.korlen-electric.com