Top One Tech explains the color and highlight test process for touch monitors
24 Sep 2021
Top One Tech is a four-in-one manufacturer specializing in the design, R&D, manufacturing and sales services of touch screens, touch monitors, and touch all-in-one computers. The factory was established in 2010 and has more than ten years of touch screen and touch display manufacturing experience.
According to the experts at Top One Tech, the following are two important inspection links for the 27-inch high-brightness touch display: color display inspection and highlight test.
The color analyzer is developed using advanced digital signal processor and photoelectric conversion technology.
The color analyzer is developed using advanced digital signal processor and photoelectric conversion technology. It is equipped with sophisticated optical components and circuit design, and has high-speed, accurate and stable color measurement capabilities.
We use a color analyzer to scan the monitor screen, the analyzer will automatically display the value, and we judge the grayscale and color performance of the monitor panel from the value. Thereby adjusting the parameters of white balance, gray and contrast to improve color contrast.
Highlight test
Because this is a 1,000 high-brightness touch display with two fans inside, we need to put it in a high-brightness environment for testing. Above the simulation room is a strong light, which can reach a brightness of 1,000 nits. Under the strong light, a high temperature environment is created. After several hours of irradiation, we will observe the temperature data on the temperature tester connected to the touch display in advance. With this instrument, we can read the temperatures of three parts on the touch display.
The first temperature displayed on the instrument is the temperature of the power supply, 41.9 C. The second displayed temperature is the temperature of the internal light bar of the display, 40.3 C, and the third displayed temperature is the temperature of the front of the display screen directly illuminated by light, 65.2C. From this data, it can be judged that even under the close-range illumination of 1000 nits, the temperature of the display is still a normal and acceptable temperature value, and there is no overheating temperature. The display can still run, which also proves that the heat dissipation effect of the display is very good, and it can be used in an outdoor environment with high temperature and direct sunlight.
The color display test and the highlight test are just two of the many tests. After these two tests, we put it in the burn-in room for burn-in testing. In this test, burn-in room simulates the various actual use conditions which cause the aging of the product. This test further proves the durability of the product.
In addition, there are anti-collision test, waterproof test, scratch resistance test, performance test and so on. Each test is pertinent and professional, just to create every perfect product for every customer. Produced by Top One Tech, it must be a boutique product.