Classification and development status of LCD module

Liquid crystal display (LCD) has been widely used in pocket-sized instruments and low-power application systems due to its advantages of micro-power consumption, small size, rich display content, ultra-thin and lightweight.Next, xingyuhe electronics will give the Internet users to introduce the LCD module classification, hope the Internet users like.

Classification of liquid crystal display modules

1. Pen segment liquid crystal module

The pen segment liquid crystal module is a functional unit which is composed of a segment liquid crystal display device and a special integrated circuit.Segment liquid crystal display devices are mostly used in portable and pocket devices.Due to some equipment is small in size, so as not to show part of the design into separate parts, even though some applications require a separate display component, then should also make it, besides has the display function should also have some information receiving, processing, storage, transfer, and other functions, because they have some general and specific function and welcome by the market.Common digital display LCD module has the following several.

1. Counting module

This is a counting display unit consisting of a seven-segment liquid crystal display device with different bits, a decoding driver, or a counter.It has the function of recording, processing and displaying Numbers.At present, the main products that can be seen on the market in China are the unit LCD display module driven by CD4055 decoding driver, and the 4-bit, 6-bit, 8-bit, 10-bit, 12-bit and 16-bit counting module assembled by ICM72ll, ICM7231, ICM7232, CDl4543, UPDl45001, HD44100 and other integrated circuits and corresponding supporting LCD devices.

2. Metering module

A metering module is A module composed of A multi-bit segment liquid crystal display device and an integrated circuit with decoding, driving, counting and A/D conversion functions.Since the integrated circuit used has A/D conversion function, the input analog signal can be converted into digital quantity for display.We know that any physical quantity, even chemical quantity (such as ph, etc.) can be converted into analog electric quantity, so as long as equipped with certain sensors, this module can realize the amount and display of any quantity, which is very convenient to use.The types of integrated circuits used in the measurement module mainly include ICL7106, ICL7116, ICL7126, ICL7136, ICL7135 and ICL7129, etc. The functions and characteristics of these integrated circuits determine the functions and characteristics of the measurement module.As a measured product, it must be measured and appraised according to the regulations.A metrology certificate shall be affixed to the product after approval by the metrology department.

3. Timing module

The timing module USES the liquid crystal display device for timing the longest time. The assembly of a liquid crystal display device and a timing integrated circuit is a timer with complete functions.It doesn’t have the shell of a finished clock, so it’s called a timing module.Timing module USES is very wide, but gm, standard of timing module is difficult to buy in the market, only to the electronic clock manufacturer or order the appropriate table core of choose and buy, timing and counting module although similar appearance, but they display in a different way, is by two timing module Numbers indicate a set of two a set of Numbers. And each number counting module are arranged in a row.As a result of many timing module still has regular, control function, because this kind of module can be assembled extensively on a few add electricity, equipment, be like recorder, CD machine, microwave oven, electric rice cooker to wait for electric appliance to go up.

Character lattice liquid crystal module

Character dot matrix liquid crystal module is composed of character dot matrix liquid crystal display device, special row and column driver, controller and necessary connecting parts and structural parts.The dot matrix character module itself has a character generator with large display capacity and rich functions.Generally, this module can display at least 8 characters of 1 line or more than 16 characters of l line.The lattice arrangement of such modules consists of groups of 5×7, 5×8, or 5×11 pixels.Each group is 1 bit, with a little space between each row and a row between each row, so the graph cannot be displayed

In general, it has a character library CGROM which has been solidified with 192 character modules in the module control and drive. It also has a random memory CGRAM which allows users to customize special characters and allows users to build 8 characters of 5×8 dot matrix.

3. Graphic lattice liquid crystal module

Graphic lattice liquid crystal module is also a kind of lattice module. Its characteristic is that the lattice pixels are arranged continuously, and the rows and columns are arranged without empty space.Thus, a continuous, complete graph can be displayed.Since it is also composed of x-y matrix pixels, it can display characters in addition to graphics.

There are mainly the following types:

1. Row and column driven

2. Row and column drive – control type

3. Row and column control type