BRAILLE DISPLAY

摘要

A braille display, which falls within the technical field of reading devices for blind people, and is designed using a memory alloy material for realizing the concave-convex change of a braille point array of the braille display. The braille display is mainly composed of any number of cubic metres of braille concave-convex point arrays, and each cubic metre of braille concave-convex point arrays comprise: several individual point locations (10), an outer frame (8) and a signal board (9). Each of the individual point locations (10) comprises upper and lower stretchable members (1, 2), an upper conductive connecting member (3), an intermediate conductive connecting member (4), a lower conductive connecting member (5), an external sleeve lock (6) and a guide rod (7). The concave-convex change of braille points is realized through specific connection between various specific components. By means of the braille display, the endurance capability is improved, and the costs are reduced. Moreover, since the braille display has a relatively small volume, the braille display can be applied to a mobile portable device or a wearable device.