NEWS
LCD Basic Knowledge
11.27.2023
Follow listed sections and review the LCD basic knowledge with us! Sinda Display also has a friendly and knowledgeable team of technical support staff to help you with any specific questions you might have.
LCD History
In 1888, liquid crystals were first discovered in cholesterol extracted from carrots by Austrian botanist and chemist, Friedrich Reinitzer. In 1969, twisted-nematic (TN) mode of operation was discovered, which gave LCD the first commercial success.
Twisted Nematic LCDs
Liquid crystals were actually discovered over 100 years ago, but they did not find commercial applications until the invention of the twisted nematic (TN) LCD by Schadt and Helfrich in 1971 (Schadt and Helfrich, 1971).
Super Twisted Nematic LCDs
The biggest problem with early multiplexed LCDs was the reduction in contrast ratio with number of addressed lines. This problem was essentially eliminated with the invention of the supertwisted nematic (STN) LCD in the early 1980s.
Positive & Negative Mode
LCDs can either be normally on (positive) or off (negative), depending on the polarizer arrangement.
Temperature Range
When selecting a Liquid Crystal Display Module or LCD Glass Panel, it is very important to identify the the range of its environmental temperature. Outlined in this section are the normal and wide temperature ranges of the LCD Modules and LCD panels offered by Orient Display.
LCD Pixel Terms & Resolution Guide
The display resolution of a LCD is the number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels.