Currently, in the commercial display industry, low-carbon has become a theme advocated by various manufacturers and users. The entire commercial display market gradually shifts from the earliest CCFL backlight to LED backlight, and strives to minimize the power consumption of the liquid crystal display. So, how to buy a low-carbon environment-friendly large-screen LCD monitor, here's a brief introduction for you.
LCD monitor selection 1, practical
Physiologically speaking, everyone is a visual animal, and it must be carefully selected when selecting a product. However, do not simply pursue the appearance of fashion and beauty, and ignore the design of the fuselage. We should choose a stable shell. The adaptable products are beneficial to prolong the service life of products and reduce the upgrading of products.
2, pay attention to the number of input terminals
Usually when a home-use LCD is taken home, people simply connect it to a DVD player and use it to their full potential. As a commercial LCD display has a wide range of applications and requires a large amount of media player support, we should select a liquid crystal display with a large number of input ports to reduce equipment configuration and installation trouble.
3, choose the right product
Before buying a product, you must choose the product that suits your needs. For example, what kind of product you want to buy, and what its purpose and size should be used. In order to prevent high prices from buying many functions, it does not apply to their own products and reduces waste of resources.
4, big brand quality is guaranteed
The current lack of unified standards in the commercial market has led to the proliferation of cottage manufacturers, and the quality of products has been prohibitive. The purchase of a dedicated large-screen commercial display is relatively expensive, so users should be careful when choosing products. Because, the product quality of the manufacturers of the first largest brands is usually better than that of general manufacturers; second, the system upgrade of commercial display products is faster, and large-brand manufacturers can support free system upgrades to facilitate the use of users; third, the big brands The manufacturer's after-sales service system is perfect and covers a wide area. Once a problem arises, it is convenient for on-site maintenance.
Select commercial display products using LED backlight
LED backlight displays have three major environmental features: First, they have high energy-saving features, and energy-saving energy is pollution-free. DC drive, ultra-low-power electro-optical power conversion close to 100%, the same lighting effect than traditional light sources energy saving more than 80%. Second, long life. Solid cold light source, epoxy resin encapsulation, there is no loose part of the lamp body, there is no weakness of the filament luminescence, heat deposition, light decay, etc., the service life of up to 60,000 to 100,000 hours, 10 times longer than the traditional light source life the above. Third, the environmental benefits are better. There are no ultraviolet and infrared rays in the spectrum. There is neither heat nor radiation. The glare is small. The waste is recyclable. There is no pollution. No mercury is contained, and the cold light source can be safely touched. It is typical green. Lighting source.
At present, low-power, long-life LED technology has become synonymous with the environmental characteristics of the entire LCD monitor market. The data shows that more than half of users have expressed their preference for LED-backlit displays. Original address:
Liquid crystal display FAQ
When a monitor is used as a monitor terminal of a matrix control system, why is it that the matrix controller switches the image for a period of time when there is no synchronization?
In the monitoring system, if there is a phase difference between the field sync signals in the image signals output from each front-end device (such as a camera), the monitor will display a period of non-synchronization when the matrix controller switches the image signals of each channel. The larger the phase difference, the longer the time that is not synchronized. Therefore, it is recommended that when constructing a monitoring system, front-end devices with GEN-LOOK input should be used as much as possible, and all front-end devices should use external synchronization. That is, the synchronization of each image signal is controlled by the same synchronization signal. Causes the monitor screen to show sync.
When using the monitor to observe the image, why does the image distortion, distortion, line and field synchronization, or even failure of the input signal occur?
1. The monitor's industry standard specifies that the input amplitude of the professional monitor is 1Vp-P±3dB (about 0.7Vp-P-1.4Vp-p), and the input impedance is 75 ohms. Therefore, if the input signal is not standardized due to cable attenuation, impedance mismatch, or the BNC head of the transmission cable, the input signal amplitude is much lower than 0.7 pp; either the camera output is not regulated or some irregularity is connected. When the input signal (such as distributor, amplifier, etc.) causes the input signal amplitude to be much larger than 1.4Vp-p, it may cause image distortion, line and field synchronization, etc.
2. Due to the wide video frequency range, video signals are more susceptible to interference during transmission (including 50Hz power interference, electromagnetic interference, etc.), thus affecting image quality. Severe disturbances may cause images to be distorted, deformed, raceways, and lines and fields to be out of sync. Therefore, during the installation of the monitoring system, the video line must be far away from sources of electromagnetic interference.
3. The potential difference between the front-end device, the control host device and the terminal device may also interfere with the video signal, resulting in distortion of the image signal or image appearance of a race track, if the whole system is powered on (ie, the front-end device, the master When the equipment and terminal equipment are connected to the BNC head to connect the front and rear equipment when they are powered on, it may be caused by the potential difference between the ground wire of the front and rear equipment (actually the shielding layer of the transmission cable). Fire, this severe flash fire will destroy the components at the input or the ground line in the PCB board casserole. Causes the input to open circuit and input no image fault. Therefore, the construction of monitoring system engineering should be designed and constructed in strict accordance with the specifications. The grounding bus should use copper conductors with sufficient cross-sectional area to ensure that the ground-to-ground resistance of the front and rear ends is <1Ω. The grounding line must not form a closed loop, and must not be short-circuited or mixed with the strong grid neutral line.
LCD monitor selection 1, practical
Physiologically speaking, everyone is a visual animal, and it must be carefully selected when selecting a product. However, do not simply pursue the appearance of fashion and beauty, and ignore the design of the fuselage. We should choose a stable shell. The adaptable products are beneficial to prolong the service life of products and reduce the upgrading of products.
2, pay attention to the number of input terminals
Usually when a home-use LCD is taken home, people simply connect it to a DVD player and use it to their full potential. As a commercial LCD display has a wide range of applications and requires a large amount of media player support, we should select a liquid crystal display with a large number of input ports to reduce equipment configuration and installation trouble.
3, choose the right product
Before buying a product, you must choose the product that suits your needs. For example, what kind of product you want to buy, and what its purpose and size should be used. In order to prevent high prices from buying many functions, it does not apply to their own products and reduces waste of resources.
4, big brand quality is guaranteed
The current lack of unified standards in the commercial market has led to the proliferation of cottage manufacturers, and the quality of products has been prohibitive. The purchase of a dedicated large-screen commercial display is relatively expensive, so users should be careful when choosing products. Because, the product quality of the manufacturers of the first largest brands is usually better than that of general manufacturers; second, the system upgrade of commercial display products is faster, and large-brand manufacturers can support free system upgrades to facilitate the use of users; third, the big brands The manufacturer's after-sales service system is perfect and covers a wide area. Once a problem arises, it is convenient for on-site maintenance.
Select commercial display products using LED backlight
LED backlight displays have three major environmental features: First, they have high energy-saving features, and energy-saving energy is pollution-free. DC drive, ultra-low-power electro-optical power conversion close to 100%, the same lighting effect than traditional light sources energy saving more than 80%. Second, long life. Solid cold light source, epoxy resin encapsulation, there is no loose part of the lamp body, there is no weakness of the filament luminescence, heat deposition, light decay, etc., the service life of up to 60,000 to 100,000 hours, 10 times longer than the traditional light source life the above. Third, the environmental benefits are better. There are no ultraviolet and infrared rays in the spectrum. There is neither heat nor radiation. The glare is small. The waste is recyclable. There is no pollution. No mercury is contained, and the cold light source can be safely touched. It is typical green. Lighting source.
At present, low-power, long-life LED technology has become synonymous with the environmental characteristics of the entire LCD monitor market. The data shows that more than half of users have expressed their preference for LED-backlit displays. Original address:
Liquid crystal display FAQ
When a monitor is used as a monitor terminal of a matrix control system, why is it that the matrix controller switches the image for a period of time when there is no synchronization?
In the monitoring system, if there is a phase difference between the field sync signals in the image signals output from each front-end device (such as a camera), the monitor will display a period of non-synchronization when the matrix controller switches the image signals of each channel. The larger the phase difference, the longer the time that is not synchronized. Therefore, it is recommended that when constructing a monitoring system, front-end devices with GEN-LOOK input should be used as much as possible, and all front-end devices should use external synchronization. That is, the synchronization of each image signal is controlled by the same synchronization signal. Causes the monitor screen to show sync.
When using the monitor to observe the image, why does the image distortion, distortion, line and field synchronization, or even failure of the input signal occur?
1. The monitor's industry standard specifies that the input amplitude of the professional monitor is 1Vp-P±3dB (about 0.7Vp-P-1.4Vp-p), and the input impedance is 75 ohms. Therefore, if the input signal is not standardized due to cable attenuation, impedance mismatch, or the BNC head of the transmission cable, the input signal amplitude is much lower than 0.7 pp; either the camera output is not regulated or some irregularity is connected. When the input signal (such as distributor, amplifier, etc.) causes the input signal amplitude to be much larger than 1.4Vp-p, it may cause image distortion, line and field synchronization, etc.
2. Due to the wide video frequency range, video signals are more susceptible to interference during transmission (including 50Hz power interference, electromagnetic interference, etc.), thus affecting image quality. Severe disturbances may cause images to be distorted, deformed, raceways, and lines and fields to be out of sync. Therefore, during the installation of the monitoring system, the video line must be far away from sources of electromagnetic interference.
3. The potential difference between the front-end device, the control host device and the terminal device may also interfere with the video signal, resulting in distortion of the image signal or image appearance of a race track, if the whole system is powered on (ie, the front-end device, the master When the equipment and terminal equipment are connected to the BNC head to connect the front and rear equipment when they are powered on, it may be caused by the potential difference between the ground wire of the front and rear equipment (actually the shielding layer of the transmission cable). Fire, this severe flash fire will destroy the components at the input or the ground line in the PCB board casserole. Causes the input to open circuit and input no image fault. Therefore, the construction of monitoring system engineering should be designed and constructed in strict accordance with the specifications. The grounding bus should use copper conductors with sufficient cross-sectional area to ensure that the ground-to-ground resistance of the front and rear ends is <1Ω. The grounding line must not form a closed loop, and must not be short-circuited or mixed with the strong grid neutral line.
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