USB PCAP TFT Display 15.6 Inch, China Outdoor LCD Display EDP 15.6 Inch TFT With 1000 Nits Surface Brightness

USB PCAP TFT Display 15.6 Inch, China Outdoor LCD Display EDP 15.6 Inch TFT With 1000 Nits Surface Brightness Product Description

SFTO1560SMT-7050A3-N PCAP TFT display is a 15.6 inch color active matrix TFT LCD module using amorphous silicon TFT‘s (Thin Film Transistors) as an active switching devices. This module has a 15.6 inch diagonally measured active a rea with Full-HD resolutions (1920 horizontal by 1080 vertical pixel array). Each pixel is divided into RED, GREEN, BLUE dots which are arranged in vertical stripe and this module can display 16.7M(Round up)(6bit+2FRC) colors and color gamut 45%. The LED driver for back-light driving is built in this model. 

SFTO1560SMT-7050A3-N PCAP TFT display is demostrating graphics and texts on a 1920×3×1080 dotspanel with16.7M(8bit) colors by using eDP (Embedded Display Port) Ver1.2 interface and supplying+3.3VDC supply voltage for TFT-LCD panel driving.In this SFTO1560SMT-7050A3-N TFT-LCD panel, color filters for excellentcolor performance is incorporated to realize brighter and clearer pictures, making this display optimum for use in multi-media applications.Optimum viewings are in all directions.Without Backlight-driving LED controller. EDP transfer rate specification: 2.7Gbps/2 lane 8bit.

* Reserve Type
* eDP interface 
* High-speed response
* 6-bit (Hi-FRC) color depth, Display 16.7M colors
* Incorporated edge type (LED) backlight 
* Compatible with RGB98% and NTSC45% (NTSC72% is available as well)
* High luminance and contrast ratio, low reflection and wide viewing angle
* DE ( data enable ) only
* Rohs and Halogen free
* TEO 6.0, ES6.0 Compliant
* Gamma Correction

Features:

USB PCAP TFT Display 15.6 Inch, China Outdoor LCD Display EDP 15.6 Inch TFT With 1000 Nits Surface Brightness Product Image

USB PCAP TFT Display 15.6 Inch, China Outdoor LCD Display EDP 15.6 Inch TFT With 1000 Nits Surface Brightness Product Drawing

Introduction to eDP and its differences from DP

Embedded DisplayPort (eDP) is a next-generation panel interface developed by the Video Electronics Standards Association (VESA) for mobile applications, which not only outperforms the traditional low-voltage differential signal (LVDS) interface, but also adds many new features to reduce system power consumption in the latest version 1.4 specification, which is expected to accelerate the expansion of eDP penetration in the mobile device market. In 2008, the PC industry first released a new video transmission interface standard - embedded DisplayPort, also known as eDP, to meet the needs of embedded display panels. eDP is gradually replacing the old low-voltage differential signal (LVDS) transmission interface, especially on FHD (1,920x1,080 or 1,920x1,200) or more than FHD resolution. You can easily find eDP applications in a variety of products with embedded display panels, including all-in-one PCs, laptops, or tablets.

eDP is derived from the DisplayPort standard, and over time, eDP has evolved into a number of unique features for embedded display panel applications. The latest eDP 1.4 released by the Video Electronics Standards Association (VESA) at the end of 2012 includes many new features to reduce system power consumption. Most people are not very aware of the differences between DisplayPort and eDP, but the following will compare the relationship and differences between the two, and explain the unique features and benefits of eDP.

Refer to the DisplayPort standard to set the eDP specification

If you want to understand eDP, you must first understand what DisplayPort is. In terms of the basic specifications and communication protocols at the bottom of the interface, eDP fully refers to DisplayPort. So what is DisplayPort? DisplayPort is a new video transmission interface used in the computer industry to replace the Video Graphics Array (VGA) and Digital Video Interface (DVI) interfaces in current personal computer (PC) applications, and to replace the High Resolution Multimedia Interface (HDMI). Compared with the old interface, DisplayPort has many advantages, because it adopts AC coupling and low voltage swing design, which is compatible with submicron processes and can be directly integrated into various image output components, such as central processing unit (CPU), graphics graphics unit (GPU), application processor (Application Processor), etc. At the receiving end of the video signal, it can also be directly applied to the complex and highly integrated Scalar and LCD panel timing controller (TCON), which also use sub-micron processes. DisplayPort (including eDP) is the only video interface that uses packets to transmit video and audio information, so new features can be added continuously while maintaining good backward compatibility.

DisplayPort (including eDP) is the best performance display interface available, capable of transmitting 60 frames per second and 30-bit color data on a 4K resolution panel, and is the only display interface that can drive multiple monitors with a single output device via a hub or daisy chain (eDP does not support it). DisplayPort can also be used with a variety of external display adapters (dongles) such as DisplayPort to VGA, DVI, or HDMI.

The image processing chip can support both DisplayPort and eDP with the same output physical layer. There are many differences between eDP and DisplayPort, the biggest difference is that eDP is designed specifically for environments such as laptops and tablets that use batteries, while DisplayPort is usually used when there is an external power supply. Therefore, power efficiency is very important for eDP, and it does not support multi-screen display.

Like DisplayPort, eDP has three basic architectures

The following is a brief description of the basic architecture of DisplayPort, including the main link, auxiliary channel, and link training of DisplayPort. Main Channels Transmit Audio-Visual Data As mentioned earlier, DisplayPort uses AC-coupled signals that are compatible with submicron semiconductor processes used today or in the future. The data encoding protocol uses the same 8b/10b encoding method as other sequential data transmission interfaces such as Universal Sequence Bus (USB), PCI Express (PCIe), SATA, etc., through which only a pair of Differential Signal Pairs are required to transmit data and clock signals at the same time, unlike LVDS, DVI, HDMI and other times that require independent clock lines. In addition, the fact that DisplayPort transmits data is scrambled and there is no clock signal at all greatly reduces the radio frequency interference (RFI) problem that is common when mobile devices with wireless connectivity using the legacy video transmission interface are installed, improving the performance of the system's wireless transmission and reducing the need for RFI shielding design.

The connectors of the DisplayPort standard consist of four pairs of differential signal lines, or four main lanes, that transmit video data over the main lanes, and can be selected to transmit data using one, two, or four lanes depending on the amount of data displayed. In addition, DisplayPort defines three different transmission rates, each with the option of 1.62 Gbit/s, 2.7 Gbit/s, or 5.4 Gbit/s. Since DisplayPort uses the 8b/10b encoding method, which will add some more data bits after encoding, the maximum data transfer rate that can actually be supported is: (4 channels) x (5.4 Gbit/s per lane) x (8/10 Coding Overhead) = 17.28 Gbit/s. An important feature of DisplayPort is that unlike other video transfer interfaces, the transfer rate does not change with the pixel rate, it uses a fixed transfer rate, similar to a normal data transfer channel, so it can be used in a variety of different applications, such as multi-screen displays with different time stream requirements; In addition, the use of a fixed transmission rate can also optimize the circuit design associated with the high-speed transmission interface, and the phenomenon of electromagnetic interference (EMI) and RFI is more predictable. DisplayPort images are transmitted in micro-packets with appropriate intervals to accommodate the pixel clock rate. The main channel also transmits CEA-861 InfoFrame data, Audio Stream Sample Rate information, Audio Streaming, and Main Stream Attribute Data, such as Picture Pixel Rate, Video Framing, and Monitor Timing Data).

AUX Channels for Transmitting Settings and Instructions

The DisplayPort connector also contains an independent bidirectional transmission auxiliary channel, called the AUX channel or AUX for short, which uses two differential signal lines with a single direction rate of only about 1Mbit/s to transmit settings and control commands, and will be discussed later for more use in eDP. The use of AUX includes reading Extended Display Capability Identification (EDID) information to ensure the correct image format (other interfaces such as LVDS, VGA, DVI, and HDMI are transmitted via I2C); Read the contents of the DisplayPort items supported by the display, such as the number of main channels, transfer rates, and other items; Set various display configuration scratchpads; Read the display status register. EDID is uniformly defined and has nothing to do with the display interface, and the other scratchpads are located in the DPCD (DisplayPort Configuration Data) scratchpad at the DisplayPort receiver. The connection process helps to enhance the reliability of the main channels Connectivity is another important part of DisplayPort. Connection is the process by which the DisplayPort transmitter and receiver establish a connection before the data is transmitted. Basically, during the connection process, the transmitter adjusts the different voltage swing amplitudes and other signal characteristics (pre-emphasis) until it is adjusted to the ideal level at the receiver. The transmitter and receiver communicate with each other through AUX to determine whether the connection is successful, and the connection can increase the reliability of the main channel, reduce data errors, and compensate for the electrical differences caused by different lengths and types of cables, especially the differences caused by the signal routing on the system board of the transmitter and receiver. It can also compensate for electrical changes due to damage to cables, connectors, or deterioration of hardware. The connection starts to operate as soon as the DisplayPort connection is powered on, and before the video data is transmitted, the connection transmits a series of special data patterns, and the source can send four different signal amplitudes and four different signal characteristic levels. The entire connection process can take anywhere from 500 microseconds to a few microseconds, depending on how many adjustments are made.
To be continued (Check it out in the 15.6 inch product.)

Contact Us

We love to hear about your projects, If you have any questions, we can be reached at sales2@saef.com.cn