A large monitor for use with an entertainment PC system requires a picture tube ideal for both PC graphics and television/movie video. This section defines the requirements for large-screen entertainment monitors.
Although an entertainment monitor is not required for Entertainment PC 97, a large (20" or greater) monitor that is sold with an Entertainment PC 97 system must meet the requirements defined in this section.
30. Large-screen monitor size: 20" or larger, if present in PC system
| Required |
Recommended: 31" or 33" (measured on the diagonal).
31. Support 800x600 at 60 Hz refresh rate
| Required |
DVD movies and typical satellite digital broadcasters provide main level/main profile MPEG-2 streams, which is the middle level of the five possible levels of MPEG-2 – encoded video data. This translates to 720x480x30 fps for NTSC. For PAL, this translates to 720x576x25 fps. Consequently, 800x600 is the optimal resolution.
Recommended refresh rate: An integral multiple of the video frame rate, for any mode in which video is displayed full screen.
For PAL, this is an integral multiple of 25 Hz. For NTSC, this is an integral multiple of 30 Hz, with an ideal rate of 120 Hz to support 24 – 30 fps content. Because most broadcast video content (such as NTSC or satellite MPEG-2 video and film) is created or adjusted through temporal rescaling or pulldown (at a 3:2 ratio) expressly for 60-Hz television monitors, further pulldown to other refresh rates (such as 72 Hz) will introduce unacceptable motion artifacts, such as non-linear screen motion.
32. Monitor meets current DDC2B and EDID standards
| Required |
This is the same requirement as for desktop monitors.
33. DDC2B-compliant host control and digitally controlled geometry
| Required |
The host control of the monitor should be managed using DDC2B-compatible adapters and drivers. This requirement is based on the Display Data Channel Standard 2.0, which defines the communication channel between the display and host system.
Geometry control is necessary for adjustment of PC-TV images, and includes these controls: skew, pin cushion, size, brightness, contrast, and position. Geometry control must be provided through a software application, rather than through dials on the monitor case. Controls must be revealed through a driver with a remote-controllable user interface.
34. ICC color matching support
| Required |
This is the same requirement as for desktop monitors.