tft display with spi interface factory

WF24MTLAJDNT0 is a 2.4 inch portrait mode SPI TFT-LCD display module with Resistive Touch Screen (RTP); resolution 240x320 pixels. This module is built-in with ST7789V IC; it supports 4-Line SPI interface, supply voltage for analog (Vcc) range from 2.4V to 3.6V, typical value 3.3V. This module is having anti-glare surface panel, view direction 6 o"clock, gray scale inversion 12 o"clock, contrast ratio 500:1.

WF24MTLAJDNT0 module is a Portrait mode TFT-LCD featured with brightness 350 nits (typical value). The module also is available for without touch screen option part no. WF24MTLAJDNN0. The working temperatures for WF24M model is from -20°C to +70°C; its storage temperatures range from -30°C to +80°C.

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RFJ320D-ALH-DNN is a 3.2-inch color active matrix TFT-LCD display module. The dimension size of this module is 55.04x77.6 mm, size of active area is 48.6x64.8 mm (3.2”diagonal), and its resolution is 240x320 pixels. This TFT display module adopts controller IC ILI9341 supporting 80 MCU 8bit/9bit/16bit/18bit / SPI (3-Wire/4-Wire) Interface. It also features high brightness, providing brightness 1000 cd/m2 with contrast ratio (typical value) 500:1. RFJ320D-ALH-DNN TFT LCD module power supply voltage is 2.5~3.3V (typical 2.8V). The module works within temperature -20 to +70℃, storage temperature ranges from-30 to +80℃.

In electronics world today, Arduino is an open-source hardware and software company, project and user community that designs and manufactures single-board microcontrollers and microcontroller kits for building digital devices. Arduino board designs use a variety of microprocessors and controllers. The boards are equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (‘shields’) or breadboards (for prototyping) and other circuits.

The boards feature serial communications interfaces, including Universal Serial Bus (USB) on some models, which are also used for loading programs. The microcontrollers can be programmed using the C and C++ programming languages, using a standard API which is also known as the “Arduino language”. In addition to using traditional compiler toolchains, the Arduino project provides an integrated development environment (IDE) and a command line tool developed in Go. It aims to provide a low-cost and easy way for hobbyist and professionals to create devices that interact with their environment using sensors and actuators. Common examples of such devices intended for beginner hobbyists include simple robots, thermostats and motion detectors.

In order to follow the market tread, Orient Display engineers have developed several Arduino TFT LCD displays and Arduino OLED displays which are favored by hobbyists and professionals.

Although Orient Display provides many standard small size OLED, TN and IPS Arduino TFT displays, custom made solutions are provided with larger size displays or even with capacitive touch panel.

TFT displays are full color LCDs providing bright, vivid colors with the ability to show quick animations, complex graphics, and custom fonts with different touchscreen options. Available in industry standard sizes and resolutions. These displays come as standard, premium MVA, sunlight readable, or IPS display types with a variety of interface options including HDMI, SPI and LVDS. Our line of TFT modules include a custom PCB that support HDMI interface, audio support or HMI solutions with on-board FTDI Embedded Video Engine (EVE2).

We aim to find out quality disfigurement from the production and supply the best service to domestic and overseas customers wholeheartedly for Display Spi Interface, Tft Lcd Monitor, Wide Lcd Panel, Lcd Frame,Industrial Monitor Lcd. We always concertrating on developing new creative product to meet request from our clients all over the world. Join us and let"s make driving safer and funnier together! The product will supply to all over the world, such as Europe, America, Australia,Oman, Zambia,Georgia, America.Upon today, we"ve customers from all over the world, including USA, Russia, Spain, Italy, Singapore, Malaysia, Thailand, Poland, Iran and Iraq. The mission of our company is to provide the highest quality products with best price. We"ve been looking forward to doing business with you.

0.49 inch OLED display module, COG technology, 64x32 resolution is a graphical ultra-thin module, this module built-in SSD1306 controller IC, OLED COG display module because it is very thin, light weight and low current consumption, so it is very suitable for handheld products, measuring instruments, smart meter, wearable products, networking equipment, medical the instrument and so on.

7. Customer’s satisfaction is very important to us. If you have any problem or question regarding our transaction, please contact us by Email or online. It will be responded within 24 hours.

Shenzhen SLS Industrial Co.,ltd established in 2003, is a professional LCD module manufacturer and solution provider. We have 1 full-auto COG assembly line, 2 semi-auto assembly line, backlight assembly line, no dust TP bonding line and manufacturing tech support, we can provide unique, innovative and cost effective LCD module development and manufacturing. Our product range includes: middle-small size TFT LCD, industrial capacitive touch panel... Our LCD products have been widely used in communications, GPS, Equipment, electronic audio-visual, instrumentation, household appliances, PDA and other industries.

This article about TFT display interfaces was written by Julia Nielsen. Julia Nielsen is a jack-of-all-trades writer, having written for newspapers, magazines, websites, and blogs for the last 15 years. When she’s not dabbling in the written word, she’s spending time with her beautiful granddaughter. She loves to hear from readers, especially when they offer chocolate.

Display technology has evolved at lightning speed for the last number of years, as opposed to when even the most sophisticated products incorporated numeric or segment displays and alphanumeric or character display technology. The same products also required buttons which have been replaced with resistive and capacitive touch panels.

When color TFT (Thin-Film Transistors) first came onto the stage, they created a buzz in the tech world that hasn’t stop buzzing since. TFT utilizes a type of display that controls each pixel with a transistor, allowing it to individually address each location.

As TFT yields improved with mass production, manufacturing, as well as healthy competition, TFT displays have soared in production performance and dived in price. Because of this, TFTs are considered the de facto standard of displays that boast of full color, brightly backlit (high NIT counts), high video speeds, better viewing angle, specifically for mobile devices and other small devices needing clear displays, such as phones, watches, security systems, and the like.

OLED (organic light-emitting diode) are increasing in popularity, but are still second to TFTs. Much of this is due to the long lead time and shorter half-life of the OLED displays. Although we offer OLED technology, we recommend TFT for the majority of the new design requests we receive.

There are several types of TFT display interfaces which have been designed in the last number of years for all variations of screen size, including LVDS, (Low-Voltage Differential Signaling) parallel, SPI (Serial Peripheral Interface) and I2C or I²C (aka I squared C) display.

LVDS is a differential signaling system, meaning it transmits information as the difference between the voltages on a pair of wires. Its popularity comes from the benefit of reducing noise levels and low power consumption, which results in even more benefits, such as lower heat dissipation and longer battery life; and because the differential drivers can be included on the LVD interface, smaller parts count, lowered parts cost, and increased reliability is a win-win for businesses and consumers.

Commercial and military, as well as aerospace applications also use LVDs in their products for a robust, long-term solution for high-speed data transmission needs. Flat panel displays, printers, digital copiers, and even cell phones incorporate LVDs to provide an excellent display quality. There are different types of LVDS protocols. When looking for the right LVDs, consider data rate, operating temperature range, and supply voltage, using these filters.

Note: Most TFT displays will operate down to -30C without the need of a heater. OLEDs will operate down to -40C without a heater, but OLEDs that are larger than 3.5” are much more expensive and have a longer lead time than TFTs.

Parallel interface or parallel port is a type of display interface found on computers for connecting peripherals. In the past, most people associated a ‘parallel’ interface with a printer port. This type of interface refers to a multi-line channel with each line capable of transmitting several bits of data on each simultaneously (bi-directional) or parallel to each line.

Newer PC’s have eliminated parallel interfaces in exchange for fire wire, USB2 and USB3. Parallel interfaces are still the most common for several LCD technologies such as character and monochrome graphics.

Parallel interface is nothing new, going back to the beginning of the 1970’s in its development and implementation. The first printer to use the interface was the Centronics 101 model printer, which became the standard at that time. But because a number of cables were required, Dataproducts and other developers had to create up to 50-pin connectors.

Fast forward to 1981 and IBM introduced their computers and printers with a 25-pin connector on the PC end and a 36-pin connector on the Centronics printer, thus the parallel interface had evolved to using both systems. In 1987, IBM introduced a bidirectional parallel interface. Since then, the parallel interface has evolved, with other companies developing their own, with even more parallel ports, including scanners.

Since technology has advanced exponentially in the last decade, so has the parallel interface, evolving to include supercomputers that allow for high-performance interfaces and network storage devices. These super performance display interfaces are capable of transferring billions of bits of data per second over short distances on local area networks. Graphical printers, along with a variety of other devices have been designed to communicate with the parallel ports including:External modems

Some of the early MP3 players and digital cameras also used a parallel port connection for transferring songs to a device, so you can see how far back the interface has been utilized in electronics.

Serial Peripheral Interface allows the serial (one bit at a time) exchange of data between two devices. A master, which controls one or more devices. Each device has its own slave connection. The master can interface with multiple slaves independently.

Once the relationship is established, the direction of control is always from master to slave. A SPI operates in full duplex mode (Data that can be transmitted in both directions on a single carrier, at the same time). To illustrate, let’s look at workstations. A SPI allows one workstation to send data on the line, while the other receives it, thus the term bi-directional, since it allows for data to be sent and received in both directions, and on the same line.

The term SPI was coined by Motorola and is typically used in communication systems between the CPU (Central Processing Unit) and peripheral devices (Any computer device not part of the essential computer, but situated close by). Serial interfaces have an advantage over parallel ones, that of simpler wiring. They can also have longer cables since there is much less interaction or crosstalk among the conductors in the cable. Many types of devices use SPI, such as:Shift registers

A key difference between SPI and Parallel is that with a serial interface, it only allows for transferring data one bit at a time but decreased the pins required, as opposed to the parallel, which allows multiple bits at a time, but requires more pins (8 data pins and 3 controllers). The downside with a SPI is that you can’t read from the display you can only write on it, and it’s typically slower.

I²C, Inter-integrated Circuit pronounced I-squared-C or I-2-C for a less technical term, is a serial protocol for two-wire interface to connect low-speed devices like micro-controllers, EEPROMS, A/D and D/A converters, I/O Interfaces and other peripherals in embedded systems. It was designed to allow easy communication between components which reside on the same circuit board. I²C only requires two wires: SCL (serial clock) and SDA (serial data). It is a multi-master, multi-slave, single-ended, serial-computer bus, (a communication system that transfers data between components inside a computer or between computers) and was invented by Phillips Semiconductor.

SMbus, (System Management Bus) developed by Intel in 1995, is a subset of I²C, which defines the protocols more strictly. Modern systems employ rules and policies from SMbus, sometimes supporting both systems, requiring minimum reconfiguration. Since 1982, there have been seven revisions to the I²C interface, and has evolved, as every other interface, with new technology always on the horizon.

As far as these two TFT display interfaces, we find that SPI is more popular than I2C when designing a custom LCD. We get hit with questions such as:Why is SPI more popular than I2C?

TFTs and OLEDs are standard, off-the-shelf displays that come with the interface already chosen for you. In many of the TFTS that Focus Display Solutions offers, the built-in controller allows the user to select from multiple display interfaces. Including RGB (Red, Green, Blue).

As a general rule, the larger the display the better it is to choose a LVDS interface since it transfers data so quickly. LVDS is more expensive than SPI, I2C, RGB and parallel. If you are not sure which display to use, try our online Quick LCD selector tool. The displays in this selector tool are in-stock and can ship the same day.

Need a LCD for a new project? Not sure which technology to choose? Contact a real human at Focus Displays now to begin your design process by calling us at 480-503-4295. Or, you can fill out the contact form and we"ll email or call you immediately.

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