A refreshable braille display or braille terminal is an electro-mechanical device for displaying braille characters, usually by means of round-tipped pins raised through holes in a flat surface. Blind computer users, who cannot use a normal computer monitor, use it to read text output. Speech synthesizers are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.

Hable One B.V.

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Our vision is to make smartphones completely accessible for people who are blind.

Every person that is blind should have the ability to grasp the same benefits of the smartphone as anyone else. This can only be achieved if they have the same opportunities as anyone else.

The vision is directly in line with our mission of empowering people, as this will be our first step in realising this.

Source: Corporate website

22 39 05 Tactile computer displays

Haptic technology, or haptics, is a tactile feedback technology which takes advantage of the sense of touch by applying forces, vibrations, or motions to the user. This mechanical stimulation can be used to assist in the creation of virtual objects in a computer simulation, to control such virtual objects, and to enhance the remote control of machines and devices (telerobotics). It has been described as "doing for the sense of touch what computer graphics does for vision". Haptic devices may incorporate tactile sensors that measure forces exerted by the user on the interface.