VESA released Embedded DisplayPort v1.4 standard, energy saving for mobile devices

VESA released Embedded DisplayPort v1.4 standard, energy saving for mobile devices
Standards Association video electronics (VESA) has just officially launched Embedded DisplayPort (EDP) version 1.4. This new version features integration help save power consumption of the system, support multi-touch data transmission through the images and can be applied to many different products such as smartphones, tablet, laptop. To consume less energy, EDP v1.4 has been upgraded technology Panel Self Refresh (PSR, first appeared on v1.3) with refresh mode only the necessary pixels, lower power use low, compression of data transmitted and combined with the ability to control the local backlight.   VESA added that the supplementary (auxiliary channel) data can now bring multi-touch screen to the processor without the need for separate wiring, thus saving space for equipment. Thanks to the two-way transmission of DisplayPort (EDP is built based on this standard), and the system using EDP v1.4 will become more flexible and can incorporate a variety of features in a simple structure chemical. Technical details of the EDP v1.4 last being evaluated by members of VESA and it will be widely published in the following month. EDP ​​is expected to be available on the commercial product as early as 2014.   EDP ​​was first introduced in 2009 as an extension to the original DisplayPort standard with the aim of replacing standard data display LVDS (Low-Voltage Differential Signaling) is becoming old. EDP ​​is mainly used for the connection (eg from the graphics card to the laptop screen) and not to export photos from computer to screen left. By 2010, two members of VESA is AMD and Intel announced that they will stop supporting LVDS in generation chipset in 2013. LVDS power has limitations such as high activity, not rich features such as EDP, accounting for more space and more likely to cause a conflict with the wireless functionality of the system. However, now many laptops still use LVDS signaling to the screen, only a small number of machines (such as Apple's MacBook line, Asus ZenBook, Dell Alienware M71x R4, ...) is used EDP standard due to integration costs are still relatively high.   PSR Technology on EDP v1.3 and v1.4 allows graphics processor switches to power saving mode in the process of updating the frame by store temporary data on a small memory (framebuffer ) integrated in the controller's screen panels. According to Engadget ...


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