The technical content of television in the home appliance industry has always been relatively high, and the pace of technological advancement is among the highest in the home appliance industry. From the moment the CRT TV was replaced, the evolution of TV display technology has not stopped for a moment. Rear projection, plasma has become a martyrs, LCD TVs currently dominate, OLED, laser projection is still ripe for the distance. However, there is currently a TV that has been born and called “QDLEDâ€. What is this? What is the real reform like OLED? Just like the WRGB screen, it is a kind of technology. Market compromise?
What is a quantum dot? Analysis of the characteristics of quantum dots <br> Quantum dots is a novel semiconducting nanomaterial with many unique nano-properties. It consists of tiny, tiny semiconductor nanocrystals that are invisible to the naked eye. Generally speaking, quantum dots are composed of zinc, cadmium, selenium, and sulfur atoms. In 1983, scientists from the Bell Labs of the United States conducted research on it, but they "forgot" to name it. A few years later, Mark Reed, a physicist at Yale University, officially named the semiconductor microchip as "quantum." Point "and still used today.
Quantum dots have a distinctive characteristic: Whenever they are stimulated by light or electricity, the quantum dots emit colored light. The color of the light is determined by the material and size of the quantum dots. This characteristic makes the quantum dots can change the light source. The color of the light emitted. Quantum dots can completely convert the blue light emitted by the LED light source into white light, instead of absorbing only a part like the YAG phosphor, which means that at the same bulb brightness, the quantum dot LED light requires less blue light and is converted into electricity and light. The electricity needed in China is naturally less, and the more efficient performance makes it better in terms of energy saving and emission reduction.
Quantum dot technology has a unique advantage. It can effectively improve the brightness of the TV by 30%-40%. At the same time, the color conversion efficiency of the backlight is also greatly improved. The color is brighter, the purity is twice that of the ordinary LED TV, and it is energy saving and environmental protection. Features. At present, QD technology can provide higher quality TV images at a cheaper product cost, making TV costs cheaper than OLED TVs.
TV industry’s new favorite quantum dot TV technology warms up
LCD TV display principle, we have also talked many times, in simple terms, LCD TV at least by the LCD panel and backlight module consists of two parts, of which the volume of the LCD panel is relatively light, but it can not emit light, There must be a light source to illuminate it (would like to see the LCD screen without backlight? Remember GBC and GBA?), the earliest ccfl light source is very heavy, has been eliminated, and then includes side-in and direct-type LCD, in fact, are all Based on the improvement of the light source, the airframe is lightweight. As for OLED TVs, since there is no need for a backlight module, it can achieve the same thickness as a card or even a paper. It can be said that the screen of a display device is difficult to be thinned in addition to a projector without a screen.
Since the thickness of the screen has been extremely high, the image quality requirements that have repeatedly been compromised due to the pursuit of lightness and cost have long since surfaced. We know that the picture quality of plasma TVs is generally better than that of LCD TVs of the same level, but it is due to being too thick and heavy, coupled with poor marketing, it is only the LCD TVs that have grabbed the limelight. What many users do not know is that in the early days of LCD TVs, the backlight was actually red, green and blue, but it was too heavy and costly to be replaced by the current white backlight. Although OLED TVs have not yet matured, white OLED TVs with the same ideas as white-backlit LCD TVs have appeared on the market. Needless to say, the cost is too high.
However, with the advent of quantum dot technology, "there's no way to get good TV without money" may end. The quantum dot technology is to put the optical material of the quantum dot between the backlight and the liquid crystal panel, so that the color gamut can reach or exceed the level of the OLED. At the same time, because it is possible to eliminate the polarizer on the light source side, the quantum dot technology is expected to produce the liquid crystal display at a lower cost. It is reported that quantum dot display technologies mainly include quantum dot light emitting diode display technology (QLED) and quantum dot backlight technology (QD-BLU). Since the quantum dots themselves have light-emitting properties, the quantum dots in the quantum dot film (QDEF) will generate red (R) and green (G) light under the illumination of the blue LED backlight, and also partially transmit blue light (B) through the thin film. ) Mix together to obtain white light, thereby enhancing the luminous effect of the entire LCD backlight, reaching or even exceeding the effect of RGB LED TV.
With the gradual maturity of quantum dot technology, global first-tier brand manufacturers are actively developing large-size quantum dot TV products. With the active promotion of international panel manufacturers, quantum dot display technology will continue to heat up in the next five years. Data show that the penetration of quantum dots in smartphone LCD panels will reach 3% in 2015, and will increase to 26% by 2020; tablet penetration will increase from 2% in 2015 to 15% in 2020; In terms of LCD TV panels, its penetration rate in 2015 will be less than 1%, and it is expected to increase to 9% by 2020.
What is a quantum dot? Analysis of the characteristics of quantum dots <br> Quantum dots is a novel semiconducting nanomaterial with many unique nano-properties. It consists of tiny, tiny semiconductor nanocrystals that are invisible to the naked eye. Generally speaking, quantum dots are composed of zinc, cadmium, selenium, and sulfur atoms. In 1983, scientists from the Bell Labs of the United States conducted research on it, but they "forgot" to name it. A few years later, Mark Reed, a physicist at Yale University, officially named the semiconductor microchip as "quantum." Point "and still used today.
The first discovery of quantum dots by Professor Louis Bruce
Quantum dots have a distinctive characteristic: Whenever they are stimulated by light or electricity, the quantum dots emit colored light. The color of the light is determined by the material and size of the quantum dots. This characteristic makes the quantum dots can change the light source. The color of the light emitted. Quantum dots can completely convert the blue light emitted by the LED light source into white light, instead of absorbing only a part like the YAG phosphor, which means that at the same bulb brightness, the quantum dot LED light requires less blue light and is converted into electricity and light. The electricity needed in China is naturally less, and the more efficient performance makes it better in terms of energy saving and emission reduction.
Quantum dots also have self-luminous properties
Quantum dot technology has a unique advantage. It can effectively improve the brightness of the TV by 30%-40%. At the same time, the color conversion efficiency of the backlight is also greatly improved. The color is brighter, the purity is twice that of the ordinary LED TV, and it is energy saving and environmental protection. Features. At present, QD technology can provide higher quality TV images at a cheaper product cost, making TV costs cheaper than OLED TVs.
TV industry’s new favorite quantum dot TV technology warms up
LCD TV display principle, we have also talked many times, in simple terms, LCD TV at least by the LCD panel and backlight module consists of two parts, of which the volume of the LCD panel is relatively light, but it can not emit light, There must be a light source to illuminate it (would like to see the LCD screen without backlight? Remember GBC and GBA?), the earliest ccfl light source is very heavy, has been eliminated, and then includes side-in and direct-type LCD, in fact, are all Based on the improvement of the light source, the airframe is lightweight. As for OLED TVs, since there is no need for a backlight module, it can achieve the same thickness as a card or even a paper. It can be said that the screen of a display device is difficult to be thinned in addition to a projector without a screen.
Flexible OLED TV
Since the thickness of the screen has been extremely high, the image quality requirements that have repeatedly been compromised due to the pursuit of lightness and cost have long since surfaced. We know that the picture quality of plasma TVs is generally better than that of LCD TVs of the same level, but it is due to being too thick and heavy, coupled with poor marketing, it is only the LCD TVs that have grabbed the limelight. What many users do not know is that in the early days of LCD TVs, the backlight was actually red, green and blue, but it was too heavy and costly to be replaced by the current white backlight. Although OLED TVs have not yet matured, white OLED TVs with the same ideas as white-backlit LCD TVs have appeared on the market. Needless to say, the cost is too high.
RGB LED backlight TV backlight module
However, with the advent of quantum dot technology, "there's no way to get good TV without money" may end. The quantum dot technology is to put the optical material of the quantum dot between the backlight and the liquid crystal panel, so that the color gamut can reach or exceed the level of the OLED. At the same time, because it is possible to eliminate the polarizer on the light source side, the quantum dot technology is expected to produce the liquid crystal display at a lower cost. It is reported that quantum dot display technologies mainly include quantum dot light emitting diode display technology (QLED) and quantum dot backlight technology (QD-BLU). Since the quantum dots themselves have light-emitting properties, the quantum dots in the quantum dot film (QDEF) will generate red (R) and green (G) light under the illumination of the blue LED backlight, and also partially transmit blue light (B) through the thin film. ) Mix together to obtain white light, thereby enhancing the luminous effect of the entire LCD backlight, reaching or even exceeding the effect of RGB LED TV.
Quantum TV panel
With the gradual maturity of quantum dot technology, global first-tier brand manufacturers are actively developing large-size quantum dot TV products. With the active promotion of international panel manufacturers, quantum dot display technology will continue to heat up in the next five years. Data show that the penetration of quantum dots in smartphone LCD panels will reach 3% in 2015, and will increase to 26% by 2020; tablet penetration will increase from 2% in 2015 to 15% in 2020; In terms of LCD TV panels, its penetration rate in 2015 will be less than 1%, and it is expected to increase to 9% by 2020.
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