LCD Character Displays
Types of Character Displays
The 1602a display is a common 16x2 character LCD. The standard interface is 8/16pin, and a serial interface (such as I2C) can also be added.
20x4 LCD is a 20*4 character liquid crystal display, which is used in equipment that needs to display more text information, status and control parameters.
16x4 LCD is a character LCD display with 16*4. In the solution development, it is a 12864LCD, which is a low-cost replacement product when it does not require displaying patterns.
40x2 LCD has a larger display space and can display more text information. It is usually used in situations where more information needs to be displayed or a larger display area is required.
Advantages of LCD Character Displays
Low power consumption
LCD character displays have relatively low power consumption, making them suitable for portable or embedded devices that need to operate for long periods of time.
Low Cost
LCD character displays are a very cheap display solution suitable for projects with a limited budget. Even large-size and high-resolution LCD displays usually cost much less than other display technologies such as OLED or TFT.
Strong stability
LCD character displays have a simple working principle and a sturdy structure, suitable for use in harsh environments. They are not easily damaged, have a long lifespan, and are suitable for long-term operation.
Strong anti-interference ability
LCD character displays have good tolerance to external electromagnetic interference (EMI), which is especially useful in industrial equipment.
Strong adaptability
Supports parallel interface and serial interface (such as I2C or SPI), which can be selected according to different requirements and system resources.
Adaptable to different environments:
Many LCD character displays are equipped with backlights, which can remain clearly readable even in low-light environments. This makes them suitable for a variety of devices and environments.
Display size and number of characters
Number of rows and columns: Indicates the number of characters and rows displayed in each line of the LCD display.
Character dot matrix: Each character is composed of a dot matrix, usually 2x8 or 16x2, which means that each character is composed of 5 columns and 8 rows (or 10 rows) of dot matrix.
Controller type
HD44780: The most common character LCD controller, widely used in 16x2, 20x2, 20x4 and other displays. It supports parallel interface and serial interface.
ST7066U: Compatible with HD44780, commonly used in various LCD display modules.
Interface type
Parallel interface/serial interface: /I2C (I²C)/SPI (Serial Peripheral Interface)
Operating voltage
Standard voltage: Most LCD character displays use 5V/3.3V power supply to operate.
Backlight
Backlight color: Common backlight colors are blue, green and white, and some displays also provide reverse
Uses of LCD Character Displays
Production line monitoring: In industrial automation, LCD character displays are often used for production line monitoring to display real-time data such as equipment operating status, temperature, speed, pressure, etc.
Machine control panel: LCD displays are used to display machine settings, operating status, fault warnings and other information to help operators monitor equipment in real time.
In the control panels of home appliances such as microwave ovens, washing machines, and air conditioners, LCD character displays are usually used to display operating status, set parameters (such as time, temperature, mode, etc.), and help users make selections and operations.
The display screens of equipment such as refrigerators and coffee machines also use LCD character displays to display the set mode, temperature, operating status, etc.
Our Quality Control and Testing During LCD Character Displays Manufacturing
Optical Inspection
The precision of the pattern transfer and the alignment of the liquid crystal molecules are examined using optical inspection.
Electrical Testing
To confirm that the LCD Character Displays work properly and adhere to the necessary requirements, electrical testing is done.
Environmental Testing
The performance of the LCD Character Displays under various environmental circumstances, such as temperature, humidity, and vibration, is evaluated by environmental testing.
Material preparation: Prepare the raw materials of the LCD module, including liquid crystal display, backlight module, circuit board, wiring board, etc.
Proofing: According to customer requirements, carry out proofing of LCD modules to determine the size, appearance, and functions of the modules.
Circuit board production: According to the proofing results, make the circuit board of the LCD module and install the electronic components.
Wiring board production: Make the wiring board of the LCD module, and install the electronic components on the wiring board.
Packing: Pack the LCD module for transportation and sales.
LCD screen installation
Install the LCD screen in front of the LCD module to provide a good display effect.
Test
Test the LCD module to ensure that the function of the module is normal.
Backlight module installation
Install the backlight module on the back of the LCD module to provide sufficient backlight.
Other Services
Delivery Method
Express (DHL / FEDEX / UPS) , Air , Sea , etc. Depending on customers' cost or time requirements, we ship by the best one.
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Payment Terms
Our usually payment term is T/T. Others can be negotiated.
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Fast Delivery
The product will be shipped within 48 hours after order confirmation.
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Warranty
With 120 days warranty and returns and exchanges supported.
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MOQ
Our standard products MOQ is 500 pcs, customized products have MOQ requirement, please contact our sales team for detailed information.
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As one of the most professional LCD character displays manufacturers and suppliers in China, we're featured by quality products and low price. Please feel free to wholesale cheap LCD character displays made in China here from our factory. Contact us for customized service.
0802 LCD Display, Alphanumeric 1602A LCD Display, LCD Display 16x1