Apparatus for communication, expression, displaying pictures and greeting

摘要

One embodiment of the current application is a device that can mount to a surface or stand on a table and interchangeably displays one or more sheets of materials. The device comprises a front panel and a back panel. One or more linear wave springs are installed between the two panels. Sheets of materials can be inserted in-between one of the two panels and the linear wave springs. The linear wave springs hold the sheets of materials onto the front panel and/or the back panel. The visual information on the sheets is displayed through one or more display windows on the panels.;Another embodiment of the current application is a device that displays a long sheet of material. There are images and/or messages of personal status, feeling, emotion, expression, or greeting on the long sheet of material. The long sheet of material passes over a supporting panel and is attached to two parallel rollers. The top and bottom portions of the supporting panel are curve shaped and flexible. The curved and flexible portion of the panel help keep the long sheet of material in tension. Three mesh well gears can rotate the rollers in synchronism. One of the three gears partially extrudes out of the device housing to be driven by human hands.

主权项

1. A display device comprising:
a display housing including a front panel, one or more sheets of materials with visual information to be displayed, at least one opening located on said display housing whereby said sheets of materials can be placed into said display housing, at least one display window on said display housing whereby said sheets of materials can be observed, at least one spring installed in said display housing to hold said sheets of materials against a display housing inner surface, said spring is a linear wave spring and has a plurality of crests to provide support to said sheets of materials.