Factory Direct: 21.45” Frameless Office Monitor

● 21.45" VA panel with FHD high resolution. ● 75Hz high refresh rate. ● 3 sides frameless design. ● 3000:1 high contrast ratio.

Model No.:		EM22DFA-75Hz
Display	Screen Size	21.45" VA
	Backlight type	LED
	Aspect Ratio	16：9
	Brightness (Typical)	200 cd/m²
	Contrast Ratio (Typical)	1,000,000:1 DCR (3000:1 Static CR)
	Resolution (Max.)	1920 x 1080
	Response Time (Typical)	12 ms(G2G)
	Viewing Angle (Horizontal/Vertical)	178º/178º (CR>10) ， VA
	Color Support	16.7M, 8Bit, 72% NTSC
Signal input	Video Signal	Analog RGB/Digital
	Sync. Signal	Separate H/V, Composite, SOG
	Connector	VGA+HDMI
Power	Power Consumption	Typical 22W
	Stand By Power (DPMS)	<0.5W
	Type	DC 12V 2A
Features	Plug & Play	Supported
	Bezeless Design	3 side Bezeless Design
	Cabinet Color	Matt Black / White
	VESA Mount	75x75mm
	Low Blue Ligth	Supported
Accessories		Power supply,HDMI cable, user's manual

The first thing we need to establish is “What exactly is refresh rate?” Fortunately it isn’t very complex. Refresh rate is simply the number of times a display refreshes the image it shows per second. You can understand this by comparing it to frame rate in films or games. If a film is shot at 24 frames per second (as is the cinema standard), then the source content only shows 24 different images per second. Similarly, a display with a display rate of 60Hz shows 60 “frames” per second. It’s not really frames, because the display will refresh 60 times each second even if not a single pixel changes, and the display only shows the source fed to it. However, the analogy is still an easy way to understand the core concept behind refresh rate. A higher refresh rate therefore means the ability to handle a higher frame rate. Just remember, that the display only shows the source fed to it, and therefore, a higher refresh rate may not improve your experience if your refresh rate is already higher than the frame rate of your source.Contrast Ratio The contrast ratio refers to the difference between the maximum and minimum brightness. It is the capacity of the display monitor to show dark colors darker and bright colors brighter. IPS: IPS panels do a decent job in the contrast ratio segment but they are nowhere close to that of VA panels. An IPS panel offers a contrast ratio of 1000:1. When you watch a black color environment in an IPS panel, the black color will be slightly greyed out. VA: VA panels offer a superior contrast ratio of 6000:1 that is very impressive. It has the capacity to show dark environments as darker. So, you will enjoy the picture detailing shown by the VA panels.

The connections you need to connect to the devices you want, from laptops to soundbars. And with 75x75 VESA, you can mount the monitor and create a custom workspace that’s uniquely yours.We could provide 1% spare components (excluding the panel) of the monitor. Perfect Display’s warranty is 1 year. For more warranty information about this product, you can contact our customer service.The winner is VA panel because of its high contrast ratio of 6000:1. Black Uniformity Black uniformity is a monitor’s ability to display black color throughout its screen. IPS: IPS panels are not really great at displaying the uniform black color throughout the screen. Due to the low contrast ratio, the black color will appear slightly greyed out. VA: VA panels have a good black uniformity. But it also depends on the TV model you go with. Not all TV models with a VA panel have good black uniformity. But it is safe to say that in general, VA panels have better black uniformity than an IPS panel. The winner is the VA panel because it can display black color uniformly throughout the screen.