Publish Time: 2022-10-26 Origin: Site
The basic principle that Indoor LCD Digital Display can display is to fill liquid crystal material between two parallel plates, and to change the arrangement of molecules inside the liquid crystal material by voltage, so as to achieve the purpose of shading and transmitting light to display different shades and scattered patterns. image, and as long as a three-color filter layer is added between the two flat plates, the display of color images can be realized.
What are the basic types of Indoor LCD Digital Display?
How to choose Indoor LCD Digital Display based on contrast?
How to choose Indoor LCD Digital Display based on response time?
Indoor Digital Display applications can be divided into two categories: one is LED single-tube applications, including backlight LEDs, infrared LEDs, etc.; the other is LED display.
Indoor LCD Digital Display is a display device composed of light-emitting diodes. It adopts low-voltage scanning drive and has the characteristics of low power consumption, long service life, low cost, high brightness, few failures, large viewing angle, and long visual distance.
Contrast
Accessories such as control ICs, filters and directional films used in the manufacture of Indoor LCD Digital Display are related to the contrast ratio of the panel. For ordinary users, a contrast ratio of 350:1 is sufficient, but in the professional field such a contrast ratio is flat. Still can not meet the needs of users. Compared with CRT monitors, which can easily achieve a contrast ratio of 500:1 or even higher, only high-end LCD monitors can achieve such a level. Nowadays, the Indoor LCD Digital Display can reach the level of 1000:1 contrast ratio, but because the contrast ratio is difficult to accurately measure by instruments, you still have to see it yourself when choosing.
The response time refers to the response speed of the Indoor LCD Digital Display to the input signal, that is, the response time of the Indoor LCD Digital Display from dark to bright or from bright to dark (brightness from 10%-->90% or 90%--> 10% of the time), usually in milliseconds (ms). To make this clear, we have to start with the human eye's perception of dynamic images. The human eye has the phenomenon of "visual residue", and the high-speed moving picture will form a short-term impression in the human brain. Cartoons, movies, and the latest games use the principle of visual persistence, allowing a series of gradual images to be displayed in rapid succession in front of people's eyes to form dynamic images. The acceptable screen display speed is generally 24 frames per second, which is also the reason for the movie playback speed of 24 frames per second. If the display speed is lower than this standard, people will obviously feel the pause and discomfort of the screen. Calculated according to this indicator, the display time of each picture needs to be less than 40ms. In this way, for the liquid crystal display, the response time of 40ms becomes a hurdle, and the Indoor LCD Digital Display higher than 40ms will have obvious picture flickering phenomenon, which makes people feel dazzled. If you want the picture to be flicker-free, it is best to achieve a speed of 60 frames per second.
UNA TECH CO., LTD has focused on the development and production of Indoor LCD Digital Displays for several years. And it commits to provide perfect service for every customer from all over the world.