This section briefly explains the difficult terms that are not explained in the text of this guide. For details, refer to other commercially available publications.
Aspect Ratio
The ratio between an image's length and its height. Screens with a horizontal:vertical ratio of 16:9, such as HDTV screens, are known as wide screens.
SDTV and general computer displays have an aspect ratio of 4:3.
Component Video
A method that separates the video signal into a luminance component (Y), and a blue minus luminance (Cb or Pb) and a red minus luminance (Cr or
Pr).
Composite video
A method that combines the video signal into a luminance component and a color component for transmission down a single cable.
Contrast
The relative brightness of the light and dark areas of an image can be increased or decreased to make text and graphics stand out more clearly, or to
make them appear softer. Adjusting this particular property of an image is called contrast adjustment.
HDCP
HDCP is an abbreviation for High-bandwidth Digital Content Protection. It is used to prevent illegal copying and protect copyrights by encrypting
digital signals sent over DVI and HDMI ports. Because the HDMI port on this projector supports HDCP, it can project digital images protected by
HDCP technology. However, the projector may not be able to project images protected with updated or revised versions of HDCP encryption.
HDTV
An abbreviation for High-Definition Television that refers to high-definition systems which satisfy the following conditions.
•Vertical resolution of 720p or 1080i or greater (p =
Progressive
g
, i = Interlace
g
)
•Screen
aspect ratio
g
of 16:9
Interlace
Transmits information needed to create one screen by sending every other line, starting from the top of the image and working down to the bottom.
Images are more likely to flicker because one frame is displayed every other line.
Progressive
Projects information to create one screen at a time, displaying the image for one frame. Even though the number of scan lines is the same, the amount
of flicker in images decreases because the volume of information has doubled compared with an interlace system.
Refresh Rate
The light-emitting element of a display maintains the same luminosity and color for an extremely short time. Because of this, the image must be
scanned many times per second to refresh the light-emitting element. The number of refresh operations per second is called the Refresh Rate and is
expressed in hertz (Hz).
SDTV
An abbreviation for Standard Definition Television that refers to standard television systems which do not satisfy the conditions for HDTV
g
High-
Definition Television.
SVGA
A screen size standard with a resolution of 800 (horizontal) x 600 (vertical) dots.
S-Video
A method that separates the video signal into a luminance component (Y) and a color component (C).
SXGA
A screen size standard with a resolution of 1,280 (horizontal) x 1,024 (vertical) dots.
Sync.
The signals output from computers have a specific frequency. If the projector frequency does not match this frequency, the resulting images are not of
a good quality. The process of matching the phases of these signals (the relative position of the crests and the troughs in the signal) is called
Synchronization. If the signals are not synchronized, flickering, blurriness, and horizontal interference occur.
Tracking
The signals output from computers have a specific frequency. If the projector frequency does not match this frequency, the resulting images are not of
a good quality. The process of matching the frequency of these signals (the number of crests in the signal) is called Tracking. If Tracking is not carried
out correctly, wide vertical stripes appear in the signal.
Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.
Product:
Forumrules
To achieve meaningful questions, we apply the following rules:
First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.
Register
Register getting emails for Epson EH-TW480 at:
new questions and answers
new manuals
You will receive an email to register for one or both of the options.
Get your user manual by e-mail
Enter your email address to receive the manual of Epson EH-TW480 in the language / languages: English as an attachment in your email.
The manual is 4,8 mb in size.
You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.
If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.
The email address you have provided is not correct.
Please check the email address and correct it.
Your question is posted on this page
Would you like to receive an email when new answers and questions are posted? Please enter your email address.
