Honeywell 7600BP-121-21EE User Guide - Page 22
Touch Screen Display
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Touch Screen Display The display is a 65,536-color LCD (Liquid Crystal Display) covered by a touch screen lens. The 2.8" 1/4 VGA (Video Graphic Array) is TFT (Thin Film Transistor) color, backlit, and the resolution is 240 x 320; see Display Backlight on page 3-4. Dolphin terminals ship with a screen protector already installed over the touch screen lens to help ! prevent damage to the touch screen. Do NOT remove this screen protector before initial use. Honeywell recommends using screen protectors, especially for applications that require highvolume interfacing with the touch screen. For more information, see Using Screen Protectors on page 3-4. For touch screen input, use the stylus included with the terminal or your finger. The method you choose depends on which one is most appropriate for your application. While there is a great deal of variation in different applications, for buttons or icons that are close together, you generally achieve greater accuracy with the stylus; see Using the Stylus on page 2-5. ! Use of objects, such as paper clips, pencils, or ink pens on the touch screen can damage the input panel and may cause damage not covered by the warranty. Display Backlight The touch screen display has a backlight that is programmed to turn off after a specified period of time that the terminal is idle. For details, see Backlight on page 6-8. Using Screen Protectors Honeywell defines proper use of the terminal touch panel display as using a screen protector and proper stylus. Screen protectors maintain the ongoing integrity (i.e., prevent scratching) of the touch panel, which is why their use is recommended for applications that require a high to medium level of interface with the touch panel. Honeywell continues to advocate the use of screen protectors on all Dolphin terminals. We recommend implementing a screen protector replacement program to ensure that screen protectors are replaced periodically when signs of damage/wear are noticeable. For general use, we recommend replacing the screen protector every thirty (30) days. However, replacement cycles vary according to the average level of touch panel use in your application. Replacement screen protectors can be purchased directly from Honeywell. Please contact a Honeywell sales associate for details. Honeywell also mandates use of a proper stylus, which is one that has a stylus tip radius of no less than 0.8mm. Use of the Honeywell stylus included with the terminal is recommended at all times. Honeywell warranty policy covers wear on the touch panel display for the first 12 months provided that a screen protector is applied and an approved stylus is used for the 12 month duration covered by the warranty. Removing the Screen Protector Dolphin terminals ship with a touch screen protector already installed. To replace the screen protector, you must remove the one already installed. 3 - 4 Downloaded from www.Manualslib.com manuals search engine Rev A 5/23/2008 Dolphin® 7600 Mobile Computer User's Guide