With the current popularity of capacitive touch monitor, its parameter indicators have become the focus of buyers. Through the parameters, it can be directly judged whether the indicators of the capacitive touch monitor tend to be normal. Today, I will introduce the four main performance indicators of capacitive touch monitor:

Viewing angle range

The viewing angle range greater than 10 is the effective viewing angle range. When the vertical viewing angle of the image is 20 degrees and the horizontal viewing angle is 36 degrees, there will be a very good visual presence, where the angle Θ is the inclination angle and the angle Φ is the azimuth angle.

brightness

Luminance refers to the brightness of the screen and is measured in candela per square meter (cd/m2) or nits, which is candlelight per square meter. Usually the brightness is determined by the backlight module. The brightness of small and medium-sized display modules such as mobile phones, car screens, and ATMs can reach about 450 cd/m2, and high brightness can reach more than 1000 cd/m2.

Response time

Refers to the speed at which each pixel of the touch screen responds to the input signal, the transition time from white to black (Tr) and from black to white (Tf). The shorter response time makes the picture transition smoother without smearing, and the smaller the value, the better. Generally, the response time of capacitive touch display is between 5-10ms.

Contrast

The contrast value is defined as the ratio of the maximum brightness value (full white) divided by the minimum brightness value (full black). In general, the acceptable contrast value for the human eye is about 250:1 (note the test conditions).

The above are the four performance indicators of capacitive touch displays, hope it will be helpful for you~ Top One Tech Co., Ltd. has a complete and scientific quality management system, and is a high-tech company focusing on the research and development, production and sales of touch displays. The company was established in Shenzhen in 2010. The core technical team has more than 10 years of industry experience and can provide users with professional and perfect touch display products and system solutions.