15.6 Inch Industrial TFT Display China Supplier, Multi-Media Optimum 15.6 Inch FHD TFT LCD Display With 1000 Nits

15.6 Inch Industrial TFT Display China Supplier, Multi-Media Optimum 15.6 Inch FHD TFT LCD Display With 1000 Nits 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:

15.6 Inch Industrial TFT Display China Supplier, Multi-Media Optimum 15.6 Inch FHD TFT LCD Display With 1000 Nits Product Image

15.6 Inch Industrial TFT Display China Supplier, Multi-Media Optimum 15.6 Inch FHD TFT LCD Display With 1000 Nits Product Drawing

Introduction to eDP and its differences from DP

Controlling the Backlight or Other Panel Functions

Through the AUX Channel In 2010, VESA released eDP 1.2, which added the ability to control the panel backlight and other functions by transmitting control commands through the AUX, which can reduce the number of eDP cables (these cables are now listed as optional in The Physical Interface above). At the same time, eDP 1.2 also adds other new capabilities to reduce the number of contacts and wires in the connector, which plays a key role in reducing the weight and volume of the system. Through the AUX channel, the eDP can control the functions of the following display panels: Turn the backlight on or off The backlight brightness adjustment is achieved with the backlight PWM frequency. Enable or turn off the dynamic backlight adjustment. It uses a color engine, a dithering algorithm, or inserts a black screen for adjustment. For example, some brands will choose to have the system side responsible for dynamic backlight adjustment on some models, and the panel side for other models to be responsible for dynamic backlight adjustment, so controlling the backlight through the AUX channel gives more flexibility to the system design.

PSR can extend the battery life of mobile devices

PSR is probably the most discussed new feature in eDP. PSR allows the system to reduce overall system power consumption when displaying still images. Since the screen is often frozen in real-world usage situations, PSR can effectively extend the battery life of mobile devices. If the display panel wants to support PSR, the TCON must have a buffer memory built into the panel, when displaying a still screen, the TCON will store the picture in the buffer memory, at this time, the image source device (GPU or CPU) will stop transmitting the image, and cut off the image transmission interface, at this time, the TCON will automatically display the picture stored in the memory, which is why this function is called panel automatic refresh, and can reduce the overall power consumption of the system. The PSR function appeared for the first time in the eDP 1.3 specification, the first generation of PSR, also known as PSR1, when entering a still screen, if any part of the picture changes, the entire screen needs to be updated, the image output must be re-transmitted, and the memory must also be re-stored in a whole screen. With eDP 1.4 Gen 2 PSR, also known as PSR2, only a part of the screen needs to be updated, which means that the graphics processor only needs to transmit a small amount of data that needs to be updated. Compared to PSR1, the graphics processor needs to operate for less time, which can further reduce power consumption, and this part of PSR2 is called Partial Update. The Partial Update feature presents a whole new set of challenges for chip designers. First of all, the chip had to support a new feature called Frame Sync, which allows the display panel to synchronize with the clock on the output when the main channel is disconnected. This function is synchronized with the receiver by using the adjustable system clock coding (GTC) specified in the AUX transmission DisplayPort 1.2a. Frame Sync allows the image output to update the data stored in the panel's buffer memory at the appropriate time. Another feature added to PSR2 is Advanced Link Power Management, also known as ALPM, also defined in eDP 1.4. ALPM requires the display to be able to leave standby and sleep very quickly; 500 nanoseconds must be out of standby and 20 microseconds must be out of sleep, which is much faster than No Link Training, which takes about 100 microseconds.

Reduced Main Channel and AUX Voltage Flapping

Prior to eDP 1.4, the physical (PHY) layer of the eDP specification output had the same level of voltage flapping as the DisplayPort output, so the DisplayPort output device could be converted to an eDP output with minimal protocol changes, providing flexibility in system and die design. This legacy design is power-hungry for many applications. In DisplayPort applications, the output supports a wide range of differential signal voltage swing amplitudes, from a minimum of 400mVpp to a maximum of 1.2Vpp. However, in eDP applications, 400mVpp has a larger voltage swing than is required at most receivers, especially when using only a short display cable. As a result, eDP 1.4 reduces the amplitude of the main channel to 200mVpp, significantly reducing the power consumption of the high-speed transmission interface. In addition to reducing the voltage swing amplitude, the revision of eDP 1.4 also adds customized amplitude and pre-emphasis adjustment flexibility, which can better meet the characteristics of different main channel transmission paths. eDP 1.4 also provides the option to operate the AUX channel at lower amplitudes, as the AUX is a bidirectional channel, a change that will affect both the receiver and output designs. In addition, in order to further reduce power consumption and response time, the number of synchronization signals transmitted before the AUX channel starts transmission is also reduced.

More flexibility in transfer rate selection

eDP 1.4 provides more flexibility in the selection of transmission rates for major channels. Prior to version 1.4, the main eDP channel rates were exactly the same as those of DisplayPort, at 1.62 Gbit/s, 2.7 Gbit/s and 5.4 Gbit/s, while eDP 1.4 added new rate options: 2.16 Gbit/s, 2.43 Gbit/s, 3.24 Gbit/s and 4.32 Gbit/s. Regardless of eDP or DisplayPort, they will basically choose a large enough bandwidth and transmission channel to transmit image data, but a higher transmission rate means higher power consumption, and an excessively high transmission rate is also a waste. The eDP 1.4 provides more transfer rate options, allowing for more optimal transfer rate selection in practical applications. For example, to transmit a 1,920x1,200, 24-bit color panel, the designer can use two main channels at 2.7 Gbit/s or one main channel at 5.4 Gbit/s. However, in reality, the 1,920x1,200, 24-bit color panel only needs to be transmitted at 3.7 Gbit/s, and provides 4.32 Gbit/s of sufficient bandwidth for two channels of 2.7 Gbit/s or one channel of 5.4 Gbit/s. However, if the same 1,920x1,200 panel is increased to 30 bits, the required bandwidth will increase to 4.625 Gbit/s, and the above bandwidth will not be enough. Before eDP 1.4, this situation had to double the transmission rate, or increase the number of channels, from two channels to four channels, but in eDP 1.4, the transmission rate only needs to be increased from 2.7G to 3.24G, that is, there is enough bandwidth of 5.184Gbit/s to transmit data, and the power consumption of the main channel interface physical layer at the output and receiver end can be reduced, and the power consumption of the equalizer line can also be reduced at the panel end. In addition to the additional transfer rate options mentioned above, eDP 1.4 also offers the option of custom speeds, which is not applied to the general eDP display panel, but is designed for some specific system applications.

Addition of Display Data Compression

Another new feature added in eDP 1.4 is to support the transmission of compressed video data, which is defined in the VESA DSC (Display Stream Compression) standard and is expected to be released in March 2014. DSC can also help extend battery life because the power consumption generated during output compression and receiver decompression is much smaller than the power savings achieved by reducing the data transfer rate. If the required bandwidth is smaller, the number of channels required for the main channel is also reduced, which means fewer lines; At the same time, when the transmission speed is slow, the transmission quality will be better, and you can also choose to use a cheaper cable. In addition, in PSR mode, the amount of data that needs to be stored can be reduced by using compression technology, and a smaller buffer memory can be used. Originally, the eDP 1.4 specification included a Compressed Display Stream Transport Services unit, but VESA decided to replace it with the new DSC specification.

Transferring multi-touch data via AUX

Mobile devices with touch panels have become common, and traditional PCs will be equipped with touch panels for more and more applications, such as Microsoft's Windows 8 operating system that supports touch functions. eDP has been widely used in tablets, laptops and AIO PCs, and these applications can also support touch. Under the current architecture, multi-touch data needs to be transmitted through a separate USB interface, and in the future, if multi-touch data is transmitted through the AUX channel, this USB interface can be eliminated. However, this feature will not ferment anytime soon, as the display driver chip and the touch chip are independent and have their own interfaces, so this eDP 1.4 feature will only play a big role when the two chips are integrated. The multi-touch data transfer function via the AUX channel supports the USB HID firmware specification, and eDP 1.4 defines a new DPCD scratchpad address on the receiver side to enable the multi-touch function, which includes the configuration data related to multi-touch support and other data transfer.

Compatibility test specification has not yet been published

VESA has not published the eDP 1.4 compatibility test specification. In 2011, VESA published eDP 1.3 guidelines, which include physical layer interfaces and link layer (Link Layer) Compatibility test specifications have not yet been published VESA has not published eDP 1.4 compatibility test specifications. In 2011, VESA published eDP 1.3 guidelines, which included guidelines such as the physical layer interface and the link layer. However, in practical application, the system factory will verify the relevant materials of the eDP system, including the compatibility and interoperability of the output, connection line and receiver.

Due to the large number of versions of eDP and the variety of applications for different systems, it is quite difficult to define a test specification that can meet all system applications. Unlike external DisplayPort, consumers do not have the opportunity to choose the internal cable and display panel, so VESA does not have the necessary necessary definition of compatibility test specifications, and system manufacturers need to work with their respective eDP component suppliers to ensure that the system works properly.

Contact Us

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