Recently, the quantum dot LCD TV camp launched a new product of less than 3,000 yuan, leaving consumers with a loss. Many consumers blindly chasing trends spend thousands of dollars to experience fresh technology. It wasn’t expected how long this QD LCD TV price fell. Why does the sales person's mouth go far beyond ordinary LCD TVs and technologically innovative "nobility" TVs, all of a sudden became wing angels? According to 3C market analysts, quantum dot LCD TV technology is not yet mature and its color performance is not significantly different from that of traditional LCD TVs. Therefore, when the market enthusiasm retreats and consumers become calm, the original high price will be difficult to sustain. Now.
The concept of fry can only take the risk
In the age of the Internet, where consumers are paramount and experience is king, any speculative behavior that is intended to confuse consumers is tantamount to a tightrope. Quantum TV has also received complaints from consumers. The truth behind TV does not seem so "good". The user wanted to leave out the new TV technology under the experience of more than 10,000 yuan. The result was endless trouble: When you look at the quantum dot TV, the eyes are particularly dry and it is not easy to sleep. When the children look at their own, they will see tears. Therefore, experts pointed out that in the face of new home appliance technology terms such as “quantum dots,†consumers need to identify and maintain scientific rationality.
According to Liu Buchen, a veteran home appliance expert, the so-called “quantum dot TV†currently on the market is accurately called “quantum dot backlight LCD TVâ€. In other words, quantum dot technology is essentially one of many color gamut enhancement technologies. Like RGB LED and wide color gamut CCFL, they all belong to the wide color gamut backlight technology, but they make LCD TVs look more colorful. . The real Quantum-dot TV should be self-luminous. At present, this kind of prototype product using LCD backlight is just a liquid crystal TV with a quantum dot concept cap.
See the truth but mediocre
Academic experimental research reveals the actual effect of quantum dot LCD TVs. The researchers used a spectral illuminometer and measurement software to measure the spectral reflectance (SPD) and luminance Y of the R/G/B tricolor patches displayed on the two screens. The narrower the bandwidth of the spectral reflectance curve, the more pure the color is. . From the experimental report, for the R/G color blocks, the brightness value of a common LED LCD TV is greater than that of a quantum dot LCD TV, while for a B color block, the brightness values ​​of both are equal. On the whole, ordinary LED LCD TVs are brighter than QD LCD TVs. From the experimental conclusion, quantum dot LCD TVs have no obvious advantages over ordinary LCD TVs.
In this regard, researchers said that ordinary LED LCD TVs and quantum dot LCD TVs are passive light, both belong to the LCD TV category. The strict sense of quantum dot TV should be self-luminous. At present, this kind of product using LCD backlight is just a LCD TV named “quantum dotâ€. According to Professor Peng Xiaogang of Zhejiang University, if quantum dots technology is to be developed, Ideally, it will take at least three to five years.
From this point of view, the instant success of quantum dot LCD TVs is nothing more than a tightrope between concept and truth. Once consumers actually experience the product or have more full information, those inconsequential marketing claims will not break. The television industry needs real leadership and groundbreaking companies and technologies to lead the industry. It is believed that with the upgrading of consumption and the deepening of research and development, a new round of display technology trends will surely come, and consumers will truly enjoy revolutionary performance. Technology brings convenience.
APM lab DC Power Supply is designed to provide continuously variable output voltage and current for a broad range of applications in a compact 1U and 2U high ,19" standard rack mounting. The front panel layout makes the laboratory dc power supply easy to use.
Some features of the high voltage dc power supply as below:
- Ultrafast respond time and high efficiency
- Accurate voltage and current measurement capability
- Constant Power and wide range of voltage and current output
- Equips with LIST waveform editing function
- Compliant with SCPI communication protocol
- Support RS232/RS485/LAN/USB (standard) ,GPIB (optional)
- Master/Slave parallel and series operation mode for up to 10 units
- Built-in standard automobile electrical testing curves
- Full protection: OVP/OCP/OPP/OTP/SCP
- Voltage drop compensation by remote sense line.
- Have obtained CE,UL,CSA,FCC.ROHS
200V DC Power Supply,DC Switching Power Supply,Adjustable Power Supply,Digital Control Dc Power Supply
APM Technologies Ltd , https://www.apmpowersupply.com