Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


viewing angle

The maximum angular distance from looking in front of a screen to looking from the side without a change of brightness or colors. A 180-degree angle means that there is no difference, which is fairly true for CRT and plasma screens. However, viewing angles differ between LCD and front and rear-projection screens.

Both Horizontal and Vertical
Horizontal and vertical angles are often not the same. For example, looking down on a screen may have less of a viewing angle than from the side and more of a viewing angle than from the bottom.

See For Yourself
Angle measurements are not uniform, because viewing angles are measured as the contrast between black and white, and what is considered an acceptable contrast ratio differs among vendors. The best way to measure a viewing angle is to see for yourself: look straight on and then from the side or, if required, from the top or bottom.




Front and Side
This 2004 vintage CRT-based, rear-projection TV has a narrow viewing angle. The picture is great when looking straight on, but brightness and colors are markedly different when viewed from the side.






Personal Use Only

Before/After Your Search Term
BeforeAfter
videotexviewing frustrum
videotextviewing frustum
Viennaviewing options
viewViewperf
View headsetviewport
viewable imageviewset
ViewdataVignette StoryServer
viewerVignette V7
viewfindervignetting
viewfinder errorViiV

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design