FAQ

Frequently Asked Questions

The following VIEWZ monitors offer 4K resolution of 3840 by 2160 :

VZ-43/55/65UHD - Quad Input 4K LED Monitor VZ-75/86/98IBX - Large 4K LED Monitor with Media Player VZ-75/86/98IBX-T - Interactive Large 4K LED Monitor

Since a 15 inch LCD display contains 2,359,296 pixels, a 19 inch LCD display contains 3,932,160 pixels, and a 24 inch LCD display contains 6,912,000 pixels, having a few ``bad`` pixels is not considered a defect.

It is rare for a monitor to ship with or develop bad pixels. If or when a bad pixel occurs, it is not an indication that more will occur. It is usually a solitary incident. A pixel may be Stuck On or Stuck Off. The minimum number of defective pixels we allow before we will replace an in warranty monitor is as follows: For 15" Monitor - 7 or more bad pixels For 17" and 19" Monitors - 10 or more bad pixels For 21" and 24" Monitors - 17 or more bad pixels.

RS232 is an industry standard communications interface between a PC computer and a peripheral device.

The RS232 interface is usually known as serial interface and is used to control a peripheral device, such as modems and display devices. The RS232 interface is sometimes called the RS232C interface. The RS232 standard requires peripheral devices to use a 25-pin or a 9-pin connector. ViewZ's Public view monitors and LCD built in 4/8ch DVR use 9-pin connectors. As EIA defines, the RS232 is used for connecting Data Transmission Equipment (DTE) and Data Communication Equipment (DCE).
sRGB - Standard Red Green Blue. The color standard that defines the standard combinations and luminance values of the red, green, and blue light that make up the colors used by most CRT monitors, LCD monitors, scanners, printers, and digital cameras.
Flat panel is a reference to the depth of LCD monitors, especially compared to CRT monitors, and to the fact that the viewing surface of any LCD monitor is flat. LCD monitors of all screen sizes are only a few inches thick. CRT monitors of any size are considerably thicker, in most cases twelve to sixteen inches, and, for large screen CRT monitors, even more. See the comparison of an LCD flat panel monitor (on the left) and a CRT monitor (on the right) below.

EXT(RGB) is the name given to a kind of terminal or jack that is available on some multi-purpose VIEWZ monitors.

The EXT(RGB) jack or connection terminal is actually a 21 pin SCART RGB video jack that is compatible with SCART plugs and connectors. SCART is found mainly in Europe where it is used on video devices compatible with the PAL video standard. RGB, by the way, stands for red, green, blue.
A dual hinged monitor has one hinge at the bottom of the stand where the stand attaches to the base and another hinge at the top of the stand where the stand attaches to the monitor. The bottom hinge lets you move the monitor screen up and down. The top hinge lets you tilt the screen back and forth.

The contrast ratio indicates the difference in light intensity measured in cd/m2 (candelas per square meter) between the brightest white on a monitor screen and the darkest black.

It is calculated by subtracting the value of the darkest black from the brightest white, then dividing the result by the darkest dark (Brightest - Darkest/Darkest). Results are typically shown in the following format: 400:1. Generally, better monitors have higher contrast ratios. NOTE: Light intensity per unit of area is also known as luminance.

Component video is a video signal that has been split into two or more component channels.

In popular use, it refers to a type of component analog video (CAV) information that is transmitted or stored as three separate signals. Component video can be contrasted with composite video (NTSC, PAL or SECAM) in which all the video information is combined into a single line level signal that is used in analog television. Like composite, component-video cables do not carry audio and are often paired with audio cables.
Cd/m2 - Candelas per square meter. A candela is a measure of luminous intensity. Cd/m2 - A measure of luminous intensity per square meter, a quality also called luminance. The higher the cd/m2, the brighter the luminous object. Consequently, a monitor rated at 300 cd/m2, will look brighter than a monitor rated at 250 cd/m2.