tft lcd serial interface manufacturer

A wide variety of tft display serial interface options are available to you, You can also choose from tft, ips and standard tft display serial interface,

As the first in the world we do provide TFT displays with 3.2", 4.3" and 7", which are immediately running and do provide from the first minute the full functionality. These displays do require a single supply 5V= (EA eDIPTFT32: 5V= or 3.3V=) and an interface RS-232, I²C or SPI only.

Like all EA DIP modules, the EA eDIPTFT displays are simply inserted in the PCB and soldered in place. No screws, distance sleeves or cables are required, thus saves material cost and simplifies construction. This results in a saving of between 2 and 4 minutes per module during assembly!

For a standard screw mounting (e.g. together with the optional mounting bezel), the displays do come with 2 additional mounting clips for easy screw mounting.Communication via serial interface (RS-232, I²C, SPI)

Additionally to the well-proved versions with a resistive touch panel currently we do provide 2 displays with 4.3" and 7" alternatively equipped with a capacitive touch panel: EA eDIPTFT43-ATC (4.3") and EA eDIPTFT70-ATC (7").

With an extended standard temperature range of -20..+70 °C, rapid response times are guaranteed down to -20 °C. Even the essential temperature compensation is already built-in. The displays are designed for +5V single-supply operation (EA eDIPTFT32-A: 3.3~5V=).Getting started

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.

A TFT LCD display module consists of a TFT LCD panel, one or more COG (chip-on-glass) or COB (chip-on-board) driver ICs, a backlight, and an interface. Several TFT display interface technologies exist today. Picking the right interface depends on specific end-product concerns. There are several types of TFT display interfaces which have been designed in the last number of years for various screen sizes, including LVDS, (Low-Voltage Differential Signaling) parallel, SPI (Serial Peripheral Interface) RGB and so on. Here is an overview of these display interfaces to give you a better idea of the variety of TFT LCD displays that are taking center stage.

SPI LCD Interface: Serial Peripheral Interface allows serial (one bit at a time) exchange of data between two devices. It has an advantage over parallel ones, that of simpler wiring. SPI also can have longer cables, since there is much less interaction or crosstalk in the cable. The downside of SPI is that you can"t read from the TFT LCD display, you can only write on it and it is slow. That"s why you normally see smaller TFT LCD screens use SPI.

MCU Parallel Interface: Many modern MCUs have built-in LCD controller function. There are two types that are commonly used, 6800 and 8080. Generally, MCU/Parallel interface consist of data signal(4/8/9/16 bits) and control signal. MCU interface is simple, but requires display RAM.

RGB Interface: RGB interface is a special kind of parallel interface. It requires no display RAM. MCU directly updates the TFT screen, sending Red Green & Blue sub-pixel data (16/18/24 bits) and timing signals. RGB interface provides high speed communication to TFT LCD, but it needs more data wires and controlling is more complex.

LVDS Interface: Low-voltage differential signaling is an electrical digital signaling standard. Devices with LVDS interface can communicate at very high speeds over inexpensive twisted-pair copper cables. It is much less susceptible to EMI and crosstalk issues, allowing the transmitting device to be located farther from TFT LCD display.

UART/RS232/RS485: These serial interfaces are used in Topway"s Smart TFT LCD display module. Universal Asynchronous Receiver/Transmitter (UART) is a block of circuitry responsible for implementing serial communication. Essentially, the UART acts as an intermediary between parallel and serial interfaces. On one end of UART is a bus of eight-or-so data lines (plus some control pins), on the other is the two serial wires – RX and TX.

HDMI Interface: High Definition Multimedia Interface is a connector and cable definition that supports high-quality and high-bandwidth streams of video and audio between devices.

MIPI DSI: MIPI Display Serial Interface defines a high-speed serial interface bewteen host processor and display module. The interface facilitates a high performance, low power and low EMI way to render brilliant color for the most dempanding image and video scenes.

To choose your product"s TFT LCD interface, besides above technical considerations, target use environment and bandwidth are two main factors as well. You can read more about how to choose LCD interfaces here, or consult with us. Topway has been manufacturing TFT LCD in the past 20s years. Our TFT LCD modules cover full spectrum of interfaces. And we surely can suggest a TFT LCD display that suits your use case.

Royal Displayhas built its reputation by offering advanced products and has a very wide range of standardSerial interface TFT LCD Display Modulesand is open for any customized display requests. TheSerial interface TFT LCD Display Modulehave been in demand in industries such as for the measurement of instruments, Electronic Panels, ATM terminals, PoS terminals, auto vending machines, Manufacturing, Automotive Display in Electric Vehicles, the digital videos, video games, and machine tool monitors, GPS, fish finders, POS systems, advanced imaging and colour reproduction technologies, mobile phones, elevator displays, and medical devices etc.

The parallel interface typically controls the LCD via 8 data pins and 3 control lines. The control lines used are Enable (E), Register Select (RS), and Read/Write (R/W). RS tells the LCD module if the information being sent is an Instruction or Data. The Enable tells the LCD module that the data or instruction in the register is ready to be interpreted by the LCD Module. Some controllers may have more than one Enable Control Line. The Read/Write tells the module whether to write data or read data from the register.

Serial LCD controllers typically have one Serial Data Line that writes data and cannot read. Normally, a Register Select Line(Sometimes designated A0) is used to tell the controller whether the incoming data is display information or a controller command

SPI, or Serial Peripheral Interface bus, is a synchronous (data is synchronized to the clock) serial data link standard that operates in full duplex mode, which means that devices that can communicate with one another simultaneously. To do this, two data lines are required. With this standard, devices communicate in a master/slave mode, where the master device (host processor) initiates the data and the clock. The LCD module is the (or one of the) peripheral slave device(s) attached to the data bus. Multiple peripherals (display modules and other devices) are addressed on the same serial data bus. However, the LCD module will only listen to the data it sees when the Chip Select line is active (usually low). If the Chip Select line is inactive (usually High), the LCD module listens to the data on the bus, but ignores it. The SDO line is not active when this state occurs. The SPI bus is comprised of four logic signals, two control lines and two data lines and is commonly referred to as SPI (4 wire).

Occasionally, SDI (serial data in) may be called out as MOSI (Master Out Slave In) from Motorola"s original name for these lines and MISO (Master In Slave Out) for SDO. The chip select line may be alternatively labeled SS (Slave-Select), or STE (Slave Transmit Enable). SPI is sometimes referred to as National Semiconductor"s trademark Microwire, which is essentially a predecessor of SPI, which only supports half duplex.

With CS (Chip-Select) the corresponding peripheral device is selected by the LCD Controller. This pin is mostly active-low. In the unselected state the SDO lines are hi-impedance and therefore inactive. The clock line SCL is brought to the device whether it is selected or not. The clock serves as synchronization of the data communication.

The chip select signal CS is optional for a single device system, because you could tie the CS input at the LCD Module low, if the other lines are dedicated to SPI use. This is sometimes called a 3 Wire SPI Interface.

Since the SPI interface protocol is a de facto standard, many variations of the standard protocol are used. For instance, chip manufacturers may use some of the parallel data lines when configuring the IC driver chip for serial communication. chip manufacturers may use some of the parallel data lines when configuring the IC driver chip for serial communication.

I2C uses only two bi-directional lines, Serial Data Line (SDA) and Serial Clock (SCL), which are both typically pulled up with resistors. Typical voltages used are +5 V or +3.3 V. One of the strengths of the I2C interface is that a micro can control multiple devices with just the two I/O pins and software. Because of the I2C design, it is only half-duplex. The interface generally transmits 8-bit words, sending the most significant bit first.

Connector ports for devices such like cameras, displays, basebands, and RF interfaces are standardized under MIPI Alliance specifications. These specifications include design, manufacturing costs, structural complexity, power consumption and degree of EMI.

Beijing STONE Technology co., ltd was established in 2010 and devoted itself to manufacturing and developing high-quality intelligent TFT LCD display modules.

Our core TFT LCD display modules integrate a CPU, flash memory, and touch screen in the hardware unit. Paired with an easy-to-use free GUI design software and complete instruction set, customers can avoid time-consuming accessories selection and system integration tasks. These units greatly reduce the workload in HMI development and make the entire process faster and easier.

The modules come with a UART TFT serial interface that can be controlled by any MCU through the simple but powerful instruction set like the 8051 series, AVR series, MSP430 Series, STM32 series, MC9S12, and Arduino series, among others.

Each TFT display LCD module has a wide range of applications, such as automated system control, vending machine functionality, intelligent lockers, electricity equipment (oiling machine, EV charger), elevators, smart home and office, precision instruments, and much more.

To date, we have delivered custom display solutions to over 3000 customers around the world. Our TFT LCD modules have been widely praised for their quality and performance and that is in large part thanks to our partners, including NI, Siemens, ThyssenKrupp, and many others. These long-term cooperative relationships have been mutually beneficial and we hope to continue a long history of success.

Test process: Carry out contact and air discharge on the periphery of the iron frame and the display area of the serial port screen in turn, and observe whether the screen has abnormal working phenomena such as reset restart, black screen, white screen, communication interruption, and other abnormalities.

Note: All tests are conducted when the products are exposed. In the actual use process, when the serial port screen is assembled on the user equipment, the screen and the equipment are kept well-grounded, the ESD performance of the whole machine will be better.

Test process: The power supply line supplies power to the screen through the power supply after the pulse Group generator is coupled with the pulse Group; the serial port signal line carries out serial port communication with the screen through the signal after the pulse Group generator is coupled with the pulse Group; and the screen is observed whether abnormal working phenomena such as reset restart, black screen, white screen, abnormal communication, and communication interruption.

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.

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.

Low-voltage differential signaling was first designed in the early 1990’s and has seen its popularity mainly in LCD-TVs, industrial cameras, notebook and tablets, and communication systems. LVDS is a technical standard that specifies electrical characteristics of a differential, serial communications protocol, which allows the operation of low power, but very high speed using inexpensive twisted-pair copper cables.

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.

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.

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.