Methods and apparatus for analyzing and orienting LCD viewing screens in order to provide improved display quality
AssigneeNCR Corporation
InventorWilliam Douglas Poynter
Life of this patent
Estimating the term…
Abstract
Techniques for installing and orienting liquid crystal display screens in terminals so as to provide improved visual quality and readability are disclosed. A suitable screen is chosen for a terminal and installed in the terminal in an orientation which will provide superior display quality from the perspective of an intended user. The screen may be installed in an orientation rotated 90 or 180 degrees from the expected orientation for which it was designed by the manufacturer. In order to provide a correctly oriented display, display adjustment software rotates the display appropriately in order to compensate for the rotation of the screen so that the information displayed on the screen is correctly oriented.
Claims14
A point of sale terminal comprising:
- a liquid crystal display screen for displaying information, the screen being installed in the point of sale terminal in an orientation rotated from an expected orientation for which the screen was designed;
- a processor for assembling and formatting information into an information display for display by the screen;
- and
- display adjustment software executed by the processor for adjusting the information display to compensate for the orientation of the screen so that the information display is presented in a normal orientation.
A method of terminal design comprising the steps of:
- selecting a desired ratio of horizontal to vertical dimensions for a screen for use in the terminal;
- performing a display quality evaluation for each of a plurality of liquid crystal display screens which are candidates for use in a terminal, evaluation being conducted from each of a plurality of observer perspectives;
- selecting a screen for use in the terminal;
- selecting a preferred orientation for the screen which provide the desired ratio of horizontal to vertical dimensions and which will maximize one or more desired visual characteristics of a display presented by the screen from a perspective of a user of the terminal;
- installing the screen in the preferred orientation;
- and
- if the preferred orientation is different from an expected orientation for which the screen was designed, installing display adjustment software in the terminal to adjust a display presented by the screen so that the display will have a normal orientation for a user of the terminal;
Dependencies are inferred from the claim text.