Keep in mind, other specifications use differential voltage to transmit data. Fairchild Current Transfer Logic, for example, uses a similar method of voltage changes to transmit data.
LVDS, however, is often preferred because of its exceptionally low power consumption. So, what benefits does LVDS offer compared to other data-transmission specifications? Display components stretch the limitations of bandwidth. For perspective, the most common internet bandwidth in a residential home runs on average at around 20 megabits per second or 20 billion 1s and 0s per second.
Even small displays can require 4MB per second, which is a lot of data in what is often a tightly constrained physical space. A still image of various diodes carrying current represents a frame. A frame rate is the number of times that a picture needs refreshing. Most videos have a frame rate of 60 fps frames per second , which means that it is updated 60 times every second. This number is important because it is the rate that the average human eye does not notice the flicker caused by the transition between frames.
Take the same PMOLED display with the x resolution and 16, separate diodes; it requires information as to when and how brightly to illuminate each pixel. For a display with only 16 shades, it takes 4 bits of data. Choosing the right display for your application requires more than knowing what it needs to look like and what the optical environment is. Don't forget to future proof the interface for when your marketing department wants a new GUI for the next software update.
If you have questions or need help finding the right display interface, send us an email at sales usmicroproducts. Custom Display Solutions You dream it, We make it a reality. Display Interface According to Wikipedia, "an interface is a shared boundary across which two separate components of a computer system exchange information.
RGB benefits: Low cost due to technology maturity High performance Works with medium to large displays Bandwidth capabilities up to 1. LVDS benefits: Ideal for systems that include wireless transmitters, since it generates little interference Works for larger displays Bandwidth capabilities up to 3. EMI of radio frequencies should be monitored to prevent noise on the high-speed signals over longer distances.
MIPI interface displays are beneficial for rendering high color and high-definition images. Higher color requires more data to be sent for each pixel and a higher resolution means more pixels. This results in a large amount of data which needs a location in memory for the minimum frame buffer in order to maintain an image. Graphics controllers often provide the memory and oscillator requirements to support these high-performance displays.
This protocol was the original high speed display interface that uses differential signaling at very low voltages to transmit data at a high frequency.
This interface is most commonly used for connecting laptops and televisions to their graphics controllers. The LVDS interface transmits data over four differential data pairs six or eight bits at a time. This display is a 7. Below are additional features of this LVDS display. The display communicates over an LVDS interface to an attached HDMI module, which supports the gate and driver signaling as well as the capacitive touch interface. The LVDS interface of this display accepts RGB data in sequences of six or eight bits corresponding to the bit, bit and bit color depths.
This display has four differential data pairs and one differential clock pair. Additionally, this interface has low EMI noise and has a high frequency. The clock frequency is determined by the interface capabilities and the resolution of the display in order to maintain a refresh rate of 60Hz.
Below is a description of each of the pins that you can find on an LVDS interface display. This is a typical pin configuration for an LVDS interface display.
It is important to verify that the pin connection matches with the graphics controller before connection because some LVDS displays may have alternative pin mappings and features.
This is beneficial for hardware connection while still maintaining the large amount of data transmitted.
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