Elo TouchSystems 192XL-XXWA-1 Series manual Native Resolution, Appendix

APPENDIX

NATIVE RESOLUTION

The native resolution of a monitor is the resolution level at which the LCD panel is designed to perform best. For the Elo LCD touchmonitor, the native resolution is 1280 x 1024 for the SXGA-19 inch size. In almost all cases, screen images look best when viewed at their native resolution. You can lower the resolution setting of a monitor but not increase it.

Input Video	19” LCD
640x480 (VGA)	Transforms input format to 1280 X 1024
800x600 (SVGA)	Transforms input format to 1280 X 1024
1024x768 (XGA)	Transforms input format to 1280 X 1024
1280 X 1024 (SXGA)

The native resolution of an LCD is the actual number of pixels horizontally in the LCD by the number of pixels vertically in the LCD. LCD resolution is usually represented by the following symbols:

VGA

SVGA

XGA

SXGA

UXGA

640 X 480

800 X 600

1024 X 768

1280 X 1024

1600 X 1200

As an example, a SVGA resolution LCD panel has 800 pixels horizontally by 600 pixels vertically. Input video is also represented by the same terms. XGA input video has a format of 1024 pixels horizontally by 768 pixels vertically. When the input pixels contained in the video input format match the native resolution of the panel, there is a one to one correspondence of mapping of input video pixels to LCD pixels. As an example, the pixel in column 45 and row 26 of the input video is in column 45 and row 26 of the LCD. For the case when the input video is at a lower resolution than the native resolution of the LCD, the direct correspondence between the video pixels and the LCD pixels is lost. The LCD controller can compute the

Elo Entuitive Touchmonitor User Guide

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