What type of segment display is commonly used on testing instruments?

Testing instruments typically utilize a variety of segment displays, depending on the functional requirements of the instrument, display specifications, and cost considerations. Common types of segment displays include TN, HTN, STN, FSTN, etc., each with its unique characteristics and applicable scenarios.

TN Segment LCD Display:

It is the most common type of liquid crystal display device, characterized by low power consumption and long service life.

It is widely used in small electronic devices such as calculators, remote controls, and electronic alarm clocks.

In testing instruments, if the display content is relatively simple and the viewing angle requirement is not particularly high, a TN segment LCD display is an economical and practical choice.

HTN Segment LCD Display:

It offers a slightly wider viewing angle range compared to TN, typically reaching about 70 degrees.

If the testing instrument needs to display information clearly within a wider viewing angle range, an HTN segment LCD display may be a better choice.

STN Segment LCD Display:

Also known as Super Twisted Nematic Liquid Crystal Display, its display principle is similar to TN but with a larger twist angle, enabling higher contrast and richer color display.

In testing instruments that require displaying more complex graphics or text, STN segment LCD displays can provide a clearer and more visually rich experience.

FSTN Segment LCD Display:

An improvement over STN, it achieves clearer black-and-white display by adding a compensating film to the polarizing plate to eliminate scattering.

FSTN segment LCD displays offer a wider viewing angle and better display effect, making them suitable for testing instruments with higher display requirements.

Besides the above-mentioned common types of segment displays, there are also some special types, such as VATN, which may have higher performance or more specific functions but have relatively limited applications.

When selecting segment displays, testing instrument manufacturers need to comprehensively consider factors such as the instrument's functional requirements, display specifications, cost budget, and market acceptance. At the same time, attention should also be paid to the reliability, durability, and maintenance cost of the segment displays to ensure the overall performance and user experience of the testing instruments.

Please note that the above information is for reference only, and the specific choice of segment display should be based on the actual situation of the testing instrument.