What are the common LCD display modules?

The LCD display module is actually a popular point, that is, the display components in the power terminal, instrumentation, etc. The digital display LCD module can only display numbers and some identification symbols, and it is also relatively common. Today we will talk about the common ones. Digital LCD display module.

(1). Counting module

This is a counting display unit assembled by a seven-segment liquid crystal display device with different digits, a decoding driver, or a counter. It has the functions of recording, processing, and displaying numbers. The main products that can be seen on the market in our country are the unit liquid crystal display device display module driven by the CD4055 decoder driver, and the integrated circuit assembly of ICM72ll, ICM7231, ICM7232, CDl4543, UPDl45001, HD44100 and the corresponding supporting liquid crystal display device. 4-bit, 6-bit, 8-bit, 10-bit, 12-bit, 16-bit counting module.

(2). Metering module

This is a module composed of a multi-segment liquid crystal display device and an integrated circuit chip with decoding, driving, counting, and A/D conversion functions. Because the integrated circuit used has A/D conversion function, it can convert the input analog electric signal into digital quantity and display it. We know that any physical quantity, even chemical quantity (such as pH, etc.) can be converted into analog electricity, so as long as it is equipped with a certain sensor, this module can realize any quantity and display, and it is very convenient to use. The integrated circuit models used by the metering module mainly include ICL7106, ICL7116, ICL7126, ICL7136, ICL7135, ICL7129, etc. The functions and characteristics of these integrated circuits determine the functions and characteristics of the metering module. As a metrological product, metrological appraisal is required according to regulations. Approved by the measurement department, a measurement certificate is affixed to the product.

(3). Timing module

The timing module uses a liquid crystal display device for a long time history. Assembling a liquid crystal display device with a timing integrated circuit is a fully functional timer. Since it does not have the outer shell of a finished clock, it is called a timing module. Although the timing module has a wide range of uses, it is difficult to buy a general and standard timing module on the market. You can only buy or order a suitable watch movement from the electronic clock manufacturer. Although the timing module and the counting module are similar in appearance, But their display modes are different. The numbers displayed by the timing module are composed of two digits in groups of two. Each digit of the counting module is arranged continuously. Since many timing modules also have timing and control functions, this type of module can be widely installed on some power-up and equipment, such as radio cassette recorders, CD players, microwave ovens, rice cookers and other electrical appliances.