Indoor small pitch LED display has become the goal that people chase. Because of the small pitch, the clarity of the display is further enhanced, the display effect is comparable to the projector and the liquid crystal display, and entering the interior lighting has become a natural move for manufacturers to open up new markets.
How does the small-pitch LED enter the indoor market and what problems does it face in entering the market? How to solve it?
At present, there are four types of indoor display applications, including conference display, video surveillance, command and control, and information display. Statistics show that in 2013, these four types of display markets reached 21 billion yuan, which is a very large market space. However, to cut into the indoor application market, small-pitch LEDs must meet six technical requirements.
How to achieve "low light and high gray"
Different from outdoor display requirements of high brightness, refresh rate and energy-saving requirements, indoor display needs to lower the brightness, experimental testing shows that from the human eye sensitivity point of view, the brightness of the LED (active light source) is a passive light source (projector And the liquid crystal display) is 2 times. For the specific data, the most suitable brightness of the small-pitch LED into the room is 100-300cd/m2. However, reducing the gamma loss caused by the brightness needs to be completed through technical supplements. At this exhibition, the large-screen display performance network released a small-pitch LED test sample, and gave test methods and standards, testing showed that only a few manufacturers can achieve low-light high-ash at the same time, most manufacturers need a certain degree of The promotion.
How to match the standard resolution of the signal source is different from the outdoor display, outdoor advertising companies will choose the content suitable for playing according to the resolution of the display screen, indoor display signal source has a certain standard, as a manufacturer, can not require access to the indoor signal source adapt Display resolution, but to adapt to the needs of indoor signal sources, the corresponding resolution of the design and guarantee to meet user needs. It is gratifying that, after more than a year of understanding the indoor display products and understanding the needs of customers, some manufacturers have already completed this transition and achieved the user's needs.
How to support multi-signal, complex signal system access and display Compared with outdoor display signals, indoor display is characterized by multi-signal access and complex signal access, such as multi-site video conferencing, remote access signals, and local access Incoming signals and multiple people use the access, experiments have shown that simply implementing multiple signal access by splitting the screen scheme will reduce the signal standard. Therefore, how to solve multi-signal and complex signal access problems also requires technical support for small-pitch LEDs.
How to Solve the Problem of Displaying Pitch Uniqueness
Compared with the conventional screen, the pitch becomes small, there will be persistence, darkness of the first scan, low reddish reddish, and low gray unevenness. It is necessary to concentrate and solve the small-pitch LED.
How to achieve patchwork elimination and high-speed correction The biggest advantage of the small-pitch LED is that it is seamless, but it requires higher stitching. For liquid crystals, as long as the seams are even, there is no problem and the seams are not obvious. However, the small LED spacing is not enough. If the modules are squeezed too tightly, bright lines will appear. When the module is left, dark lines will appear. It's not easy to really stitch. Therefore, the process and correction technology of the box and the guarantee of efficiency and good combination need to be guaranteed.
How to reduce the dead-light rate and ensure the stability of the screen The traditional industry standard is that the LED dead-light rate is one ten-thousandth, but the small gap is not. According to the traditional standards, if there is one dead lamp in ten thousand square meters, the display screen will not Law looked. The future dead-light rate needs to be controlled to one-hundred and one-millionth of a million to meet the long-term use requirements. Otherwise, with a period of time, full screens are dead lights, and users cannot accept it.
In addition to meeting the technical guarantees of the six major issues, Zhang Qiang also pointed out that outdoor displays are selling products, and they say that one square meter will be sold. However, the indoor display sells the overall solution. Outdoor display manufacturers entering the indoor market, first of all need companies to change their thinking, from asking customers to buy what specifications and a large area of ​​the product, go to ask the customer, what to display, how much signal to the screen display, the signal specification is what Then according to the resolution needs to design, how many dot spacing, what system to use and how to connect user signals to the system to meet user needs. Therefore, the indoor display does a total solution and optimization, rather than a simple screen price competition. Since different integrators will adopt different solutions, differentiation will naturally occur. This can also explain why the indoor display market does not have the same vicious competition as outdoor displays.
How does the small-pitch LED enter the indoor market and what problems does it face in entering the market? How to solve it?
At present, there are four types of indoor display applications, including conference display, video surveillance, command and control, and information display. Statistics show that in 2013, these four types of display markets reached 21 billion yuan, which is a very large market space. However, to cut into the indoor application market, small-pitch LEDs must meet six technical requirements.
How to achieve "low light and high gray"
Different from outdoor display requirements of high brightness, refresh rate and energy-saving requirements, indoor display needs to lower the brightness, experimental testing shows that from the human eye sensitivity point of view, the brightness of the LED (active light source) is a passive light source (projector And the liquid crystal display) is 2 times. For the specific data, the most suitable brightness of the small-pitch LED into the room is 100-300cd/m2. However, reducing the gamma loss caused by the brightness needs to be completed through technical supplements. At this exhibition, the large-screen display performance network released a small-pitch LED test sample, and gave test methods and standards, testing showed that only a few manufacturers can achieve low-light high-ash at the same time, most manufacturers need a certain degree of The promotion.
How to match the standard resolution of the signal source is different from the outdoor display, outdoor advertising companies will choose the content suitable for playing according to the resolution of the display screen, indoor display signal source has a certain standard, as a manufacturer, can not require access to the indoor signal source adapt Display resolution, but to adapt to the needs of indoor signal sources, the corresponding resolution of the design and guarantee to meet user needs. It is gratifying that, after more than a year of understanding the indoor display products and understanding the needs of customers, some manufacturers have already completed this transition and achieved the user's needs.
How to support multi-signal, complex signal system access and display Compared with outdoor display signals, indoor display is characterized by multi-signal access and complex signal access, such as multi-site video conferencing, remote access signals, and local access Incoming signals and multiple people use the access, experiments have shown that simply implementing multiple signal access by splitting the screen scheme will reduce the signal standard. Therefore, how to solve multi-signal and complex signal access problems also requires technical support for small-pitch LEDs.
How to Solve the Problem of Displaying Pitch Uniqueness
Compared with the conventional screen, the pitch becomes small, there will be persistence, darkness of the first scan, low reddish reddish, and low gray unevenness. It is necessary to concentrate and solve the small-pitch LED.
How to achieve patchwork elimination and high-speed correction The biggest advantage of the small-pitch LED is that it is seamless, but it requires higher stitching. For liquid crystals, as long as the seams are even, there is no problem and the seams are not obvious. However, the small LED spacing is not enough. If the modules are squeezed too tightly, bright lines will appear. When the module is left, dark lines will appear. It's not easy to really stitch. Therefore, the process and correction technology of the box and the guarantee of efficiency and good combination need to be guaranteed.
How to reduce the dead-light rate and ensure the stability of the screen The traditional industry standard is that the LED dead-light rate is one ten-thousandth, but the small gap is not. According to the traditional standards, if there is one dead lamp in ten thousand square meters, the display screen will not Law looked. The future dead-light rate needs to be controlled to one-hundred and one-millionth of a million to meet the long-term use requirements. Otherwise, with a period of time, full screens are dead lights, and users cannot accept it.
In addition to meeting the technical guarantees of the six major issues, Zhang Qiang also pointed out that outdoor displays are selling products, and they say that one square meter will be sold. However, the indoor display sells the overall solution. Outdoor display manufacturers entering the indoor market, first of all need companies to change their thinking, from asking customers to buy what specifications and a large area of ​​the product, go to ask the customer, what to display, how much signal to the screen display, the signal specification is what Then according to the resolution needs to design, how many dot spacing, what system to use and how to connect user signals to the system to meet user needs. Therefore, the indoor display does a total solution and optimization, rather than a simple screen price competition. Since different integrators will adopt different solutions, differentiation will naturally occur. This can also explain why the indoor display market does not have the same vicious competition as outdoor displays.
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