What is the difference between LCD monitor and LCD TV?
What is the difference between LCD monitor and LCD TV?
1. Image processing: TV watch is the activity of rapidly changing images, usually for static picture image processing ability is poor, monitor main monitoring is still picture more, so the monitor on image processing is more professional, professional LCD monitors have the bandwidth to compensate and improve circuit, video bandwidth up to 20 m, make clarity greatly increased, professional 3 d digital comb filter, enhance brightness, Chrominance digital noise reduction processing ability, enhance motion detection ability, significantly improve the smoothness of the edge of the motion image, greatly improve the sense of layers of the picture, can better display the details, make the picture more delicate and natural.
2. Color restore degree: if the clarity is mainly determined by the amplitude and frequency characteristics of the video channel, the restore degree is mainly determined by the phase of the chroma signal and brightness signal of the three primary colors of red (R), green (G) and blue (B) in the monitor. Due to monitor observed usually for static image, so the requirement of the monitor color reduction degree is higher than the TV, so the professional LCD monitor in brightness, chroma on treatment and R, G, B should have accurate compensation circuit and delay circuit, to ensure that the light/color signals and phase synchronization of R, G, B signals.
3. Stability of the whole machine: when the monitor constitutes the closed-circuit monitoring system, it usually needs to be powered on 24 hours a day and 365 days a year continuously without interruption (while the TV usually only works for a few hours a day), and the application environment of some monitors may be harsh, which requires higher reliability and stability of the monitor. Compared with TV, in the design, the monitor's current, power consumption, temperature and resistance to electrical interference, electric shock ability and margin, as well as the average trouble-free service time are much larger than TV. At the same time, the monitor must use a fully shielded metal shell to ensure electromagnetic compatibility and interference performance; In the selection of components, the components used by the monitor have higher characteristics of voltage resistance, current, temperature, humidity and other aspects than those used by the TV. In installation, debugging, especially components and machine aging on the technological requirements, the requirement of the monitor is also higher, TV manufacturing machine aging is usually on the line when the room temperature electricity 8 hours, and monitor the machine aging needs in high temperature, high humidity airtight environment aging line electricity aging more than 24 hours, in order to ensure the stability of the whole machine. The components used by TV sets are not suitable for uninterrupted continuous use. If the TV is forcibly used as a monitor, it is easy to produce failure at light level, and may cause accidents because the working temperature of the TV is too high when serious.
(2) The principle of intelligent elimination of residual shadow
Digital image processing chip intelligent remnants shadow elimination function will keep monitoring the input signal, according to the input signal of each frame image of root mean square value to judge whether the image is still images or dynamic images, root mean square value reflects the average brightness and brightness distribution of the input image, with the parameters we can determine the characteristics of the input signal of every frame image and different, If the input images after a period of time is still images, system startup remnants shadow elimination engine, the engine will automatically according to the static or activity in the input image, move the format of the input signal, the input image displayed on the screen the location of the tiny, rapid change, eliminate the liquid crystal molecules for a long period of time, no change of control, And the long time, static control voltage of the liquid crystal molecule is exactly the root cause of the residual shadow after the long time of playing the still image on the liquid crystal screen. After the fast and small transformation of the still image, the liquid crystal molecules get a chance to breathe for a certain time, so as to avoid permanent damage to the liquid crystal screen and achieve the purpose of eliminating the residual image
Remote power monitor
A remote power monitor is a device that can remotely control the power on or off of a device over a telephone or network.
At present, there are three main ways to achieve: mobile phone/telephone voice prompt remote control, mobile PHONE GPRS/INTERNET network remote control, computer software control.