Display/video The OB4000 DSTN may report the display RAM to be 1024KBs, however, it is 512KB. Later versions have corrected this. It is not a hardware problem but a reporting problem. Display RAM is not upgradable. Display Manufacturer: Hitachi Video graphics controller chip: Western Digital 90c24 rocket chip. External video resolution (both types): Supports VGA/SVGA external monitors with up to 1024 x 768 x 256 colors in noninterlaced mode. Auto detection of external monitor without rebooting Note: Includes option to simultaneously display external video and notebook display.
TFT Display Quality TFT display manufacturing is a high precision but imperfect technology and manufacturers cannot currently produce large displays that are cosmetically perfect. Most if not all TFT displays will exhibit some level of cosmetic imperfection. These cosmetic imperfections may be visible to the customer under varying display conditions and can appear as bright, dim or dark spots. This issue is common across all vendors supplying TFT displays in their products and is not specific to the HP OmniBook display. The HP OmniBook TFT displays meet or exceed all TFT manufacturer's standards for cosmetic quality of TFT displays.
HP does not warrant that the displays will be free of cosmetic imperfections. TFT displays may have a small number of cosmetic imperfections and still conform to the display manufacturers cosmetic quality specifications. Here are some guidelines to use in determining what action to take on a customer complaint of cosmetic imperfection in their TFT display: 1. The unit should be viewed in the customer's normal operating condition. This means if the customer uses the unit predominately in DOS, or Windows, or in some other application or combination of applications, that is where the determination shall be made.
Self test is not a normal operating condition and is not a sufficient tool to interpret display quality. 2. In the customer's normal operating mode: a. If 4 or more variant pixels appear clustered in the area approximated by a thumbprint on the display surface, then the display should be considered for replacement. ___________ 13