Embedded displayport

Types of Embedded DisplayPort

An Embedded DisplayPort (eDP) is an internal model of DisplayPort cables used in laptop and computer screens. This monitor connection transmits data between the motherboard and the screen. The eDP technology enables sleek designs and improves image quality, especially for LCD and LED screens.

According to the DisplayPort Connectivity Industry Alliance, there are three main types of eDP displays:

• eDP Level 1: Entry-level displays with a basic refresh update that use a control panel IC to regulate brightness and contrast. They are great for general laptop use.
• Level 2: These mid-tier displays produce a better image and better panel controls, including supporting two levels of Display Data Channel /Video Data Timing Standard, Reduced Blanking Mode, Implicit/Explicit Timing, and different frame rates. They are ideal for gaming and graphic-intensive projects.
• eDP Level 3: High-performance displays that support HDR, integrated frame adaptation, adaptive sync, and image expansion and have a maximum display clock frequency of 240 MHz.

If one is looking for an upgraded model of the DisplayPort cable, they can check the latest generation which include eDP 1.4 and 1.3 models. Highlights include:

• PTP (Precision Time Protocol) support for time synchronization in networked AV systems.
• Forward error correction (FEC) for robust error handling and correction.
• Display Stream Compression (DSC) Layer for efficient display data compression.
• Support for DisplayPort 1.2 feature sets.

Many manufacturers of electronic display ports have upgraded the line to add new features like improved resolutions, reduced power consumption, and better bandwidth utilization. New models are designed to work with USB Type-C connectors and provide alternate modes to support multiple protocols like HDMI, Thunderbolt, and eDP.

Function and Features of Embedded DisplayPort

An embedded DisplayPort, or eDP, is a DisplayPort interface embedded directly onto a device's system board. This interface is used to connect a computer to a monitor without the need for a cable, making it ideal for devices with space constraints like laptops and tablets. eDP comes in version 1.0 and 1.4, each improving refresh rates and resolutions and supporting additional features like Display Stream Compression (DSC) and panel self-refresh.

• Space efficiency: The absence of cables allows designers to create sleeker and more compact devices without compromising performance.
• Improved refresh rates and resolutions: Versions 1.0 and 1.4 of eDP provide higher refresh rates and resolutions for clearer images.
• Display Stream Compression: This feature enables devices to run at higher resolutions and refresh rates by minimizing the amount of data transmitted to the display.
• Panel self-refresh: This energy -saving feature allows the panel to refresh itself while the rest of the system goes into sleep mode, extending battery life.

Scenarios

The disport cable can be used in various industries and scenarios.

• Health Industries

  In the health industry, the DisplayPort embedded in the devices can be used in ultrasound machines and medical monitors. The ultrasound machines use the interface to get clear images of the baby. Many monitors that keep track of the patient's temperature and vital signs use different interfaces, including the DisplayPort.

• Automation System

  Automation systems depend on controllers and sensors to show the status of different machines. Organizations can connect display monitors directly to the controller using embedded DisplayPorts. This allows the operator to see a real-time display of the machine's condition and make adjustments when necessary. A lot of automation systems use the interface port to integrate display devices into their control systems. Ports like the eDP or the RD make this possible.

• Gaming

  The graphics card in gaming systems uses the DisplayPort cable to send signals to the monitor. Gamers can enjoy higher refresh rates, resolutions, and variable refresh rates. It provides gamers with an immersive experience, and that's why it's preferred over HDMI.

• Video Production

  Videographers need accurate color representation and high-resolution frames, which DisplayPort cables offer. They can use them to connect editing laptops to large workspace monitors for video editing. The cables provide professional video editors with the tools they need to produce high-quality work.

• Audiovisual Systems

  Companies that host events need to create large-screen presentations that have clear images. They need AV systems that consist of projectors, switches, and signal extenders all connected using DisplayPort cables. These cables can transmit HD content to extension devices.

• Simulators and Training Systems

  Flight and vehicle training systems employ realistic visual display systems that deploy the DisplayPort cable. These systems feature multiple screens that give a surround view vital for accurate simulation. High frame rates, resolution, and color depth are required for the simulators to function well. The training system uses the DisplayPort to meet all the requirements.

• Industrial Control

  In industrial environments, machines and monitors are kept under strict conditions. Industrial Grade DisplayPort cables can be used to control input devices on the factory floor. Machine operators can use them to connect robust display devices to view data in real time. The cables are designed to offer precise control in visual monitoring applications.

How to choose embedded DisplayPort?

As seen earlier, the embedded DisplayPort is ideal for professional applications due to its ability to carry high video and audio data at high levels. When choosing one, consider the following factors:

• Connector Type and Compatibility

  Various connector types are available, like mini and multi-link. Choose the one that is compatible with the device. Also, remember to check the connector type; if the target device has a different one, consider buying an adapter. That will enable them to connect and therefore work within the required parameters.

• Version and Features

  Upgrading to DisplayPort 2.0 is advisable because it comes with great features. Such features include increased bandwidth, support for numerous display resolutions, and improved refresh rates. The more advanced version also supports a wider range of accessories and calculations, therefore, giving a better experience.

• Resolution and Refresh Rate Support

  Businesses aiming to achieve high-resolution displays with refresh rates should consider embedded DisplayPorts. These offers support for resolutions that are 8K or even higher. Libraries, digital signage, and video walls and applications requiring realistic and crisp images are ideal for these uses.

• Multi-Stream Transport (MST) Support

  The Multi-Stream Transport (MST) enables multiple displays to be connected through a single port. This is done without compromising video quality. It is mostly used in workstations and control centers. Consider it when looking to expand productivity and create a seamless visual environment. Also, ensure that the ideal display is compatible with MST.

• Active vs. Passive Adapters

  Active adapters are preferred because they are capable of converting both digital and analog signals. They can also generate signals for multiple resolutions. This makes them ideal for displaying devices. On the other hand, passive adapters can only convert signals from a source that is digital to a sink that is digital, meaning they do not have the same capabilities as the active ones.

• Cost and Budget

  Stick to the budget while also ensuring that the best-adapted features for a certain situation or application are chosen. Ensure to look at long-term savings and how certain features chosen can help reduce costs. Also, consider how the decision can financially affect the business in the long run and the return on investment.

• Surface Mount vs. Through-Hole

  Surface mount connectors are preferred for their small footprint, which manufacturers can easily incorporate into portable devices. On the other hand, the through-hole connectors are favorable when a robust connector is required during assembly. They also work best when hand soldering is needed in the assembly process.

Q&A

Q: Does all display port to eDP conversion require a controller board?

A: In most instances, converting a DisplayPort signal to eDP will require a controller board that can accept the DP signal and output to the eDP interface. The board serves as a signal converter to match the eDP panel's requirements.

Q: Can eDP run without a controller?

A: An embedded DisplayPort generally refers to a connector-less interface and not the actual display. In the absence of an external controller to generate display signals, an eDP panel cannot function on its own even though it is designed to be integrated into other devices like laptops and tablets.

Q: What is the difference between eDP and DisplayPort?

A: While an Embedded DisplayPort (eDP) is a low-power interface used to connect displays in integrated applications like laptops, the DisplayPort is an external interface meant for connecting peripheral displays. eDPs are typically internal connections, whereas DisplayPorts are external connectors.

Q: Can the signal of an embedded DisplayPort be extracted?

A: Yes, in some instances, it is possible to extract the signal from an eDP port and display it on a standard monitor. Specific adapter cables can convert the eDP signal to a DisplayPort signal that enables using an eDP-output device as a primary display.