Ergonomics on Large Screen Displays

by Lauren

1.                  Proximity

a.       Distance from monitor ( >25" or 2 x display height)

b.      Height (between 15° and 50° below horizontal eye level)

c.       Tilt?

2.                  Lighting

a.       Indoor

                                                               i.      Ceiling suspended

                                                             ii.      indirect lighting

b.      Outside light

                                                               i.      Cover with shades

                                                             ii.      north-facing windows (psychological reasons)

c.       Screen

                                                               i.      “The area around the monitor that the user sees when his or her vision strays from the screen should be at the same luminance as the display to prevent eye strain”

                                                             ii.      Dark letters on a light background.

3.                  Input / Interaction

a.       Direct manipulation for high stress environments (e.g. touch screen)

b.      Avoid leading to disorders (e.g. Cumulative Trauma Disorder)

                                                               i.      Repetitious work

                                                             ii.      Holding one position

                                                            iii.      Non-neutral postures (halfway through the available range of motion)

                                                           iv.      Localized pressure (on nerves or tendons)

                                                             v.      Use of force (fast jerks with small muscles)

                                                           vi.      Cold temperatures

                                                          vii.      Vibration (hand-held, large driven equipment)

c.       Alternative keyboards

                                                               i.      Split keyboards

                                                             ii.      Tented keyboards

                                                            iii.      Negative-slope keyboards

                                                           iv.      Supportive keyboards

                                                             v.      Scooped Key Arrangements

4.                  Display

a.       Larger size (increases spatial performance, farther proximity than 1 mon ☺, and ease of seeing)