With the current popularity of LCD screens, their parameter indicators have become a focus of attention for buyers. By using these parameters, it is possible to directly determine whether the various indicators of LCD screens are approaching normal. Today, the editor of ultra-high brightness display screen manufacturers will introduce several main performance indicators of LCD screens:
Perspective range
An observation angle range with a contrast greater than 10 is the effective viewing angle range. among Θ The angle is the inclination angle, Φ The angle is the azimuth angle.
brightness
Also known as brightness, it is the maximum brightness of a liquid crystal display panel, sometimes also known as Brightness in the industry. It can be measured using professional equipment such as BM-7/A, CA-310, and CS2000,. Brightness refers to the brightness level of an image, measured in candlelight per square meter (cd/m2) or nits, which is the percentage of candlelight per square meter. Usually determined by the backlight module, the brightness of small and medium-sized LCM LCD display modules such as smartphones, MP3 players, GPS, etc. can reach around 350 cd/m2, while high-end ones can reach 450 cd/m2 (Pay attention to testing conditions)
response time
The speed at which each pixel on an LCD screen reacts to an input signal, as well as the required transition time from white to black (Tr) and from black to white (Tf). The shorter reaction time makes the screen transition smoother without any dragging phenomenon. The smaller the value, the better. The response time Tr+Tf of a typical LCD screen is between 20-30ms.
contrast ratio
The contrast value is the ratio that defines the maximum brightness value (all white) divided by the minimum brightness value (all black). Generally speaking, the acceptable contrast value for the human eye is about 250:1. (Pay attention to testing conditions)
Of course, when purchasing an LCD screen, it's not just about these indicators. The editor has also selected a few important ones to briefly introduce to everyone. If you have any other questions about LCD screens, please feel free to contact Technology at any time.
Ruxin Gaoliang is committed to creating long-term value for our customers. We are a high-quality domestic LCD display manufacturer with 13 years of experience in research, development, production, and sales, specializing in various types such as high brightness screens, bar screens, and small-sized LCD screens. We provide one-on-one professional services for you.