In the past six months, in the color TV market, a news of Blu-ray on LCD TVs has spread and fermented among the guides of some TV manufacturers, causing many users to worry about it.
After investigation by a media reporter, it was discovered that the spread of LED LCD TVs is harmful to the blue light. They are mainly some shopping guides who sell OLED TVs. They just want to tell consumers that there is also blue light, but LED liquid crystals are inorganic materials, and OLEDs are organic materials. Because you don't have to worry about blue light damage to the human eye, you should choose OLED TV for the health of your family, especially your child.
However, Wisdom Appliance found in its investigation that whether it is an inorganic LED LCD TV, an organic OLED TV, or even a quantum dot TV, it actually involves blue light, and the blue light wavelength in the three display technologies is basically the same. That is, if LED blue light is harmful to the human eye, both OLEDs and quantum dots can be harmful. So why is Blu-ray harmful on LCD TVs, and on OLED TVs it is healthy for the human eye? What hidden secrets are hidden behind it?
Recently, Dr. Luo Zhongsheng, general manager and application engineering director of Nanosys Corporation, a long-term research display technology company, disclosed to the media a research finding that red, green and blue constitute the three primary colors of TV display, whether it is LED liquid crystal, quantum dot TV or OLED TV. Due to the difference in the use of materials, the product life span varies greatly. The key to the longevity is blue light.
Luo Zhongsheng found that due to the high energy of the blue photon, it is easy to cause the material to decay. The OLED is precisely a high-molecular organic material. The short lifetime of blue light is a short board that cannot be avoided. On the contrary, the blue light sources of LED LCD TVs and Quantum TVs are all inorganic materials, which are inherently more vital than OLEDs, and the data show that they are at least 5 times higher.
If you often go to the United States for business trips to consumers, you can go to any one of the United States telecommunications company stores, the OLED phones they show because they have been turned on during the day, often show the same picture, basically there is residual image problems. It is because the Blu-ray problem of OLED technology has not been solved well, and the service life is very short. This is only OLED on the small screen mobile phone, if the OLED is displayed on the large screen of the TV, the problem will be more prominent.
An insider of a TV company revealed that “When LGD introduced the OLED display panel and defined it as the next-generation display technology, the relevant leaders of the company also attached great importance to sourcing more than 100 OLED display panels and producing corresponding engineering machines. In the lab, OLED TVs in some product showrooms have experienced serious color degradation in just one year. Eventually this led to the company's suspension of OLED projects."
Although the current OLED screen application on the mobile phone will also appear a series of issues such as residual image, but because the mobile phone is a fast consumer goods, it will replace an average of more than a year, so consumers are not sensitive to the color of the OLED phone afterglow. However, televisions are different. The average family will be replaced at least for seven or eight years. At the same time, the screen consumers will have higher expectations of the color of this type of product.
Luo Zhongsheng emphasized that “The OLED has a residual image or burning screen because the blue life is not enough. If it is a professional, you can clearly find that the OLED TV white screen changes due to the blue's own attenuation, and the technical term is called white point drift. After the average consumer purchases an OLED TV, every month, compared with the white screen, it will also be found that the white color will appear more and more yellowish, that is, because the blue light is getting weaker and weaker.
Last year, Samsung chose to abandon the application of OLEDs on TVs. Instead, QD TVs are the future development direction. It is also based on the fact that QD TVs do not suffer from the short lifespan of blue light. Therefore, QD TVs have not made warranty guarantees for 10 years. Similarly, Blu-ray is most harmful to the eyes of consumers in LED LCD TVs and harmless to OLED TVs. In fact, many years ago, when LED LCD TVs came to the world, it has been proven that Blu-ray LED TVs are harmful. .
Blue light is light with a wavelength between 400-500 nanometers. Research shows that the shorter the wavelength, the higher the energy and the stronger the penetration. As early as 2014, an experimental result of the China National Institute of Standardization Visual Health Laboratory showed that when the blue light peak spectrum is within the 460-500 nm range and the illuminance exceeds 1500 lx (illuminance units) or more, direct exposure for more than 3 hours will cause cells to appear. There is a noticeable drop in vitality.
Since the current ambient light level of a home is generally no more than 600 lx, and LED liquid crystal televisions use back-illumination or side light emission, the blue light wavelength is about 450 nanometers to achieve the best color gamut. Therefore, the LED display will not cause the harm of blue light, and it is even less likely to cause damage to the retina. At the same time, due to material life and efficiency reasons, OLEDs generally use 460-480 nm blue light, so the purity of the blue color is not as good as that of the LED, which in turn reduces the color gamut, especially affecting the performance in blue.
"From the point of view of technological innovation, OLED technology has made significant progress compared with ten years ago, but there is still a gap from the final user demand. So we can only say that OLED is currently in the early stages of commercial use, but if it is to be There are still many problems in the popularization of the TV market." Luo Zhongsheng is concerned that technical problems such as afterimages and burning have not been fundamentally solved, and the life expectancy of Blu-ray is still declining year by year. There has been a huge increase in the popularity of OLED TVs. risks of.
The truth shows that, whether it is LED liquid crystals or OLED TVs, the blue wavelength range used by them is equivalent, and it is impossible to cause harm to human eyes. On the contrary, Blu-ray applications on OLEDs will not only not be healthier, but also due to organic materials, the short lifetime of Blu-ray will eventually cause OLED TVs to suffer from persisting images and even burning screens. This will affect the actual users. Experience.
It is precisely because of the failure of a series of technical defects in current OLED TVs that sales of its products have stalled in the global and Chinese markets in the past three to four years. In the Chinese market, Sino-Iceon data show that in 2016 China's color TV market, OLED sales totaled 33,000 units, while LG and Skyworth sold 16,000 units and 11,000 units respectively. This is a far cry from the goal of selling 200,000 OLED TVs that was created earlier in the year. In the global market, Quzhi Consulting and Statistics: In 2016, OLED TVs sold 850,000 units worldwide, which is a significant difference compared with the 209 million units of global LCD TVs shipped in the same period.
After investigation by a media reporter, it was discovered that the spread of LED LCD TVs is harmful to the blue light. They are mainly some shopping guides who sell OLED TVs. They just want to tell consumers that there is also blue light, but LED liquid crystals are inorganic materials, and OLEDs are organic materials. Because you don't have to worry about blue light damage to the human eye, you should choose OLED TV for the health of your family, especially your child.
However, Wisdom Appliance found in its investigation that whether it is an inorganic LED LCD TV, an organic OLED TV, or even a quantum dot TV, it actually involves blue light, and the blue light wavelength in the three display technologies is basically the same. That is, if LED blue light is harmful to the human eye, both OLEDs and quantum dots can be harmful. So why is Blu-ray harmful on LCD TVs, and on OLED TVs it is healthy for the human eye? What hidden secrets are hidden behind it?
Recently, Dr. Luo Zhongsheng, general manager and application engineering director of Nanosys Corporation, a long-term research display technology company, disclosed to the media a research finding that red, green and blue constitute the three primary colors of TV display, whether it is LED liquid crystal, quantum dot TV or OLED TV. Due to the difference in the use of materials, the product life span varies greatly. The key to the longevity is blue light.
Luo Zhongsheng found that due to the high energy of the blue photon, it is easy to cause the material to decay. The OLED is precisely a high-molecular organic material. The short lifetime of blue light is a short board that cannot be avoided. On the contrary, the blue light sources of LED LCD TVs and Quantum TVs are all inorganic materials, which are inherently more vital than OLEDs, and the data show that they are at least 5 times higher.
If you often go to the United States for business trips to consumers, you can go to any one of the United States telecommunications company stores, the OLED phones they show because they have been turned on during the day, often show the same picture, basically there is residual image problems. It is because the Blu-ray problem of OLED technology has not been solved well, and the service life is very short. This is only OLED on the small screen mobile phone, if the OLED is displayed on the large screen of the TV, the problem will be more prominent.
An insider of a TV company revealed that “When LGD introduced the OLED display panel and defined it as the next-generation display technology, the relevant leaders of the company also attached great importance to sourcing more than 100 OLED display panels and producing corresponding engineering machines. In the lab, OLED TVs in some product showrooms have experienced serious color degradation in just one year. Eventually this led to the company's suspension of OLED projects."
Although the current OLED screen application on the mobile phone will also appear a series of issues such as residual image, but because the mobile phone is a fast consumer goods, it will replace an average of more than a year, so consumers are not sensitive to the color of the OLED phone afterglow. However, televisions are different. The average family will be replaced at least for seven or eight years. At the same time, the screen consumers will have higher expectations of the color of this type of product.
Luo Zhongsheng emphasized that “The OLED has a residual image or burning screen because the blue life is not enough. If it is a professional, you can clearly find that the OLED TV white screen changes due to the blue's own attenuation, and the technical term is called white point drift. After the average consumer purchases an OLED TV, every month, compared with the white screen, it will also be found that the white color will appear more and more yellowish, that is, because the blue light is getting weaker and weaker.
Last year, Samsung chose to abandon the application of OLEDs on TVs. Instead, QD TVs are the future development direction. It is also based on the fact that QD TVs do not suffer from the short lifespan of blue light. Therefore, QD TVs have not made warranty guarantees for 10 years. Similarly, Blu-ray is most harmful to the eyes of consumers in LED LCD TVs and harmless to OLED TVs. In fact, many years ago, when LED LCD TVs came to the world, it has been proven that Blu-ray LED TVs are harmful. .
Blue light is light with a wavelength between 400-500 nanometers. Research shows that the shorter the wavelength, the higher the energy and the stronger the penetration. As early as 2014, an experimental result of the China National Institute of Standardization Visual Health Laboratory showed that when the blue light peak spectrum is within the 460-500 nm range and the illuminance exceeds 1500 lx (illuminance units) or more, direct exposure for more than 3 hours will cause cells to appear. There is a noticeable drop in vitality.
Since the current ambient light level of a home is generally no more than 600 lx, and LED liquid crystal televisions use back-illumination or side light emission, the blue light wavelength is about 450 nanometers to achieve the best color gamut. Therefore, the LED display will not cause the harm of blue light, and it is even less likely to cause damage to the retina. At the same time, due to material life and efficiency reasons, OLEDs generally use 460-480 nm blue light, so the purity of the blue color is not as good as that of the LED, which in turn reduces the color gamut, especially affecting the performance in blue.
"From the point of view of technological innovation, OLED technology has made significant progress compared with ten years ago, but there is still a gap from the final user demand. So we can only say that OLED is currently in the early stages of commercial use, but if it is to be There are still many problems in the popularization of the TV market." Luo Zhongsheng is concerned that technical problems such as afterimages and burning have not been fundamentally solved, and the life expectancy of Blu-ray is still declining year by year. There has been a huge increase in the popularity of OLED TVs. risks of.
The truth shows that, whether it is LED liquid crystals or OLED TVs, the blue wavelength range used by them is equivalent, and it is impossible to cause harm to human eyes. On the contrary, Blu-ray applications on OLEDs will not only not be healthier, but also due to organic materials, the short lifetime of Blu-ray will eventually cause OLED TVs to suffer from persisting images and even burning screens. This will affect the actual users. Experience.
It is precisely because of the failure of a series of technical defects in current OLED TVs that sales of its products have stalled in the global and Chinese markets in the past three to four years. In the Chinese market, Sino-Iceon data show that in 2016 China's color TV market, OLED sales totaled 33,000 units, while LG and Skyworth sold 16,000 units and 11,000 units respectively. This is a far cry from the goal of selling 200,000 OLED TVs that was created earlier in the year. In the global market, Quzhi Consulting and Statistics: In 2016, OLED TVs sold 850,000 units worldwide, which is a significant difference compared with the 209 million units of global LCD TVs shipped in the same period.
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