Contrast ratio contrast ratio refers to the

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Contrast ratio Contrast ratio refers to the difference in light intensity between the brightest white and the darkest black. An example contrast ratio is 1000:1. A higher initial number indicates a better quality picture. The static contrast ratio indicates the difference that can be displayed at the same time. The dynamic contrast ratio indicates the difference that the monitor is capable of producing. Color depth The color depth is the number of different colors that can be displayed on the screen at a time. Color depth is expressed in bits (a higher bit count increases the number of colors that can be displayed). Common bit depths include: 8-bit (256 possible colors) 16-bit, also called high color (65,536 possible colors) 24-bit, also called true color (16.7 million possible colors) 32-bit, also called true color (16.7 million possible colors and alpha channel) Display devices use a variety of connection interfaces to transfer visual information. The following table describes the specifications of the most common cable and interface types: Interface Description VGA Provides an analog video signal Uses a DB-15 connector Maximum supported resolution of 2048 × 1536 @ 85 Hz
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DVI-A (Analog) Provides an analog video signal Used by older HDTVs (rarely used by computers) Cables typically have a DVI-A connector on one end and a VGA connector on the other Maximum supported resolution of 1920 × 1200 @ 60 Hz DVI-D (Digital) Single Link Dual Link Provides a digital video signal only Single Link interface: o Transmission bandwidth of 4.59 Gbps o Maximum supported resolution of 1920 × 1080 @ 60 Hz Dual Link interface: o Supports longer cable lengths than single link DVI-D o Found on most video cards and flat-panel displays o Transmission bandwidth of 9.9 Gbps o Maximum support resolution of 2048 × 1536 @ 60 Hz DVI-I (Integrated) Single Link Dual Link Provides either an analog or digital signal Contains all pins found on both DVI-A and DVI-D connectors Works with older analog devices without the need for an expensive digital-to-analog converter box Compatible with all DVI connection types Single Link interface: o Maximum supported resolution of 1920 × 1080 @ 60 Hz Dual Link interface: o Maximum support resolution of 2048 × 1536 @ 60 Hz Some video cards use a special interface called a DMS-59. This interface provides two separate DVI-I signals from a single port, allowing two monitors to be connected. HDMI Provides both a digital video and digital audio signal Used by HDTVs and computers The miniHDMI interface is used by laptops, SFF computers, and digital video cameras Used by HDTVs and computers HDMI version 1.3: o Transmission bandwidth of 10 Gbps o Maximum support resolution of 2560 × 1600 @ 60 Hz HDMI version 1.4: o Transmission bandwidth of 10 Gbps o Maximum support resolution of 3840 × 2160 @ 30 Hz HDMI version 2.0: o Supports 21:9 aspect ratio o Transmission bandwidth of 18 Gbps o Maximum support resolution of 3840 × 2160 @ 60 Hz Adapters that convert HDMI to another connection type (e.g., DVI-to-HDMI or HDMI-to-VGA) only
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