character lcd module 16x2 dots matrix quotation

The Displaytech 162H series is a lineup of 16x2 character LCD modules. These modules have an 84x44 mm outer dimension with a 66x16 mm viewing area on the display. The 162H 16x2 LCD displays are available in STN or FSTN LCD modes with or without an LED backlight. The backlight color options include yellow green, white, blue, pure green, or amber color. Get a free quote direct from Displaytech for a 16x2 character LCD display from the 162H series.

The Displaytech 162M series is a lineup of our largest 16x2 character LCD modules. These modules have a 122x44 mm outer dimension with 99x24 mm viewing area on the display. The 162M 16x2 LCD displays are available in STN or FSTN LCD modes with or without an LED backlight. The backlight color options include yellow green, white, blue, pure green, or amber color. Get a free quote direct from Displaytech for a 16x2 character LCD display from the 162M series.

According to customers" various requests,tft lcd, lcd panel, lcd monitor, lcd screen, TN and STN lcd display module,character and graphic lcd module,industrial lcd,we can match all accessories which inclusive of driver board,LED backlight

OEM is accepted Customized LCD Module we are welcome Various LCD Display Mode Available Various LED Backlight Color Available Various Temperature Range Available

Dark on light gray sunlight readable 16x2 character LCD with single LED backlight included. All pins and functionality is documented in the datasheet. Contrast can be easily adjusted with a potentiometer or PWM. Each row holds 16 characters there are 2 rows per module.

WH1602L1 is a 16x2 Character Dot Matrix LCD Module which is built in with ST7066 controller IC; its default interface is 6800 4/8-bit parallel. The WH1602L1 model is negative voltage optional as well. This display is also available in SPI and I2C interface by using RW1063 controller IC. WH1602L1 is available in several different backlight colors including blue, green, white, yellow-green, amber, red, white LED. The LEDs can be driven by PIN1, PIN2, PIN15, PIN16 or A and K.

Dr Pan: Hello, Greg. Character LCD module is one special dot matrix LCD Module with stationary size and resolution, operation voltage, interface, etc.

Take 20*2 character LCD module for example. There are 20 characters horizontally, 2 characters vertically. Each character is a 5*8 dot matrix. Outer dimension 116.0×37.0 mm and active area 73.5×11.5 mm. When you develop a custom dot matrix LCD module, it can be any length and width, resolution, but it takes a lot of time and great efforts to develop it. The most widely used dot matrix LCD modules with specific sizes were made public and it is very convenient for everyone to get them with no tooling fee. You will not have a lot of options when you choose a character LCD module, a custom dot matrix LCD module is still your first choice.

The intelligent controller includes an SD card reader, rotary encoders and a 20-character × 4 line LCD display. You can easily connect it to your RAMPS 1.4 board using "smart adapter" included.

JHD629 G/W Model JHD629 G/WDisplay 20×4 character Outline 98.060.014.0VA 76.0 25.2Controller SPLC780DCharacter 2.95 4.75Driver 1/16LCD STN Grey Backlight White LED

Newhaven 16x2 character Liquid Crystal Display shows characters with blue pixels on a gray background when powered on. This transflective LCD Display is visible with ambient light or a backlight while offering a wide operating temperature range from -20 to 70 degrees Celsius. This NHD-0216SZ-FSW-GBW display has an optimal view of 6:00. This display operates at 5V supply voltage and is RoHS compliant.

The Hitachi HD44780 LCD controller is an alphanumeric dot matrix liquid crystal display (LCD) controller developed by Hitachi in the 1980s. The character set of the controller includes ASCII characters, Japanese Kana characters, and some symbols in two 40 character lines. Using an extension driver, the device can display up to 80 characters.

The Hitachi HD44780 LCD controller is limited to monochrome text displays and is often used in copiers, fax machines, laser printers, industrial test equipment, and networking equipment, such as routers and storage devices.

Compatible LCD screens are manufactured in several standard configurations. Common sizes are one row of eight characters (8×1), and 16×2, 20×2 and 20×4 formats. Larger custom sizes are made with 32, 40 and 80 characters and with 1, 2, 4 or 8 lines. The most commonly manufactured larger configuration is 40×4 characters, which requires two individually addressable HD44780 controllers with expansion chips as a single HD44780 chip can only address up to 80 characters.

Character LCDs may have a backlight, which may be LED, fluorescent, or electroluminescent. The nominal operating voltage for LED backlights is 5V at full brightness, with dimming at lower voltages dependent on the details such as LED color. Non-LED backlights often require higher voltages.

Character LCDs use a 16-contact interface, commonly using pins or card edge connections on 0.1 inch (2.54 mm) centers. Those without backlights may have only 14 pins, omitting the two pins powering the light. This interface was designed to be easily hooked up to the Intel MCS-51 XRAM interface, using only two address pins, which allowed displaying text on LCD using simple MOVX commands, offering cost effective option for adding text display to devices.

In all three starting cases, the bus interface is now in 8-bit mode, 1 line, 5×8 characters. If a different configuration 8-bit mode is desired, an 8-bit bus Function Set command should be sent to set the full parameters. If 4-bit mode is desired, binary 0010 should be sent on D7–D4 with a single enable pulse. Now the controller will be in 4-bit mode and a full 4-bit bus Function Set command sequence (two enables with command bits 7–4 and 3–0 on subsequent cycles) will complete the configuration of the Function Set register.

The CGRAM is read/write memory used to encode up to 8 characters in the character generator. It consists of 64 fields at addresses 0 to 3F hex. Each field is 5 bits mapping to a row of pixels of each character. Each 8 fields in the CGRAM are used for each character. The lower 3 bits of the character codes from 0–7 and 8–15 select the groups of 8 fields in the CGRAM memory.

The original HD44780 character generator ROM contains 208 characters in a 5×8 dot matrix, and 32 characters in a 5×10 dot matrix. More recent compatible chips are available with higher resolution, matched to displays with more pixels.

The 7-bit ASCII subset for the Japanese version is non-standard: it supplies a Yen symbol where the backslash character is normally found, and left and right arrow symbols in place of tilde and the rubout character.

A limited number of custom characters can be programmed into the device in the form of a bitmap using special commands. These characters have to be written to the device each time it is switched on, as they are stored in volatile memory.

This screen module is typically has to be custom made. Each pixel is a patch of custom graphic. The advantage of use this raw display is the low power consumption.

The disadvantge of this display is the need to drive each pixel with an alternating voltage. This makes it troublesome to drive. A driver is usually used for this LCD interface. Example of a driver will be for example, HOLTEK HT1621B, HT1620, HT1621, HT1622, HT16220, HT1623, HT1625, HT1626.

There is a term “bias”. This basically means the multiplexing. 1/2 means it is multiplexing 2 columns, 1/3 means multiplexing 3 columns. The more it multiplex, the quality (contrast) of the LCD display gets lower due to the lower display frequency. As long as the display frequency is >30Hz, you shouldn’t see any flickering.

Elastomeric strips is a special rubber cushion material which acts as a cushion and conductor for tracks. It is often found with non-pins raw LCD module.

A 16×2 LCD (Liquid Crystal Display) screen is an electronic display module used in various devices and circuits. A 16×2 LCD can display 16 characters per line with the characters stretched between 2 rows (i.e. lines). In a 16×2 LCD, each character is displayed in a 5×7 pixel matrix. The 16×2 intelligent alphanumeric dot matrix display is capable of displaying 224 different characters and symbols. This LCD has two registers, namely, Command and Data.

Command register stores various commands given to the LCD display. The data register stores data to be displayed on the LCD matrix. The process of controlling the display revolves around putting the data that form the image of what you want to display into the data registers, then putting instructions in the instruction register.

16×2 LCD is named so because; it has 16 Columns and 2 Rows. There are a lot of combinations available like, 8×1, 8×2, 10×2, 16×1, etc. But the most used one is the 16*2 LCD, hence we are using it here.

All the above mentioned LCD display will have 16 Pins and the programming approach is also the same and hence the choice is left to you. Below is the Pinout and Pin Description of 16x2 LCD Module:

These black circles consist of an interface IC and its associated components to help us use this LCD with the MCU. Because our LCD is a 16*2 Dot matrix LCD and so it will have (16*2=32) 32 characters in total and each character will be made of 5*8 Pixel Dots.  A Single character with all its Pixels enabled is shown in the below picture.

So Now, we know that each character has (5*8=40) 40 Pixels and for 32 Characters we will have (32*40) 1280 Pixels. Further, the LCD should also be instructed about the Position of the Pixels.

It will be a hectic task to handle everything with the help of MCU, hence an Interface IC like HD44780 is used, which is mounted on LCD Module itself. The function of this IC is to get the Commands and Data from the MCU and process them to display meaningful information onto our LCD Screen.

The LCD can work in two different modes, namely the 4-bit mode and the 8-bit mode. In 4 bit mode we send the data nibble by nibble, first upper nibble and then lower nibble. For those of you who don’t know what a nibble is: a nibble is a group of four bits, so the lower four bits (D0-D3) of a byte form the lower nibble while the upper four bits (D4-D7) of a byte form the higher nibble. This enables us to send 8 bit data.

As said, the LCD itself consists of an Interface IC. The MCU can either read or write to this interface IC. Most of the times we will be just writing to the IC, since reading will make it more complex and such scenarios are very rare. Information like position of cursor, status completion interrupts etc. can be read if required, but it is out of the scope of this tutorial.

The Interface IC present in most of the LCD is HD44780U,in order to program our LCD we should learn the complete datasheet of the IC. The datasheet is given here.

There are some preset commands instructions in LCD, which we need to send to LCD through some microcontroller. Some important command instructions are given below: