Braille display screen applying electroactive polymer and display method thereof

Abstract

The invention belongs to the field of braille display, and particularly relates to a braille display screen applying an electroactive polymer and a display method of the braille display screen. When the braille display screen runs, braille text signals are transmitted to the encoding module, the encoding module encodes the braille text signals and then transmits the encoded braille text signals tothe main control module in the form of electric signals, and the main control module sends out control instructions according to the obtained electric signals so as to control cut-off and conductionof all MOS transistors. After the MOS transistors are conducted, positive and negative electrodes of the power supply are connected in series with the braille hole module. The volume of the electroactive polymer in each braille hole module expands and becomes larger under the action of direct-current voltage, so that a protruding point is formed at the corresponding position of the braille displayscreen, different protruding point positions are controlled by controlling cut-off and conduction of the MOS tubes corresponding to the different braille hole modules, and then different braille characters are combined.

Description

technical field [0001] The invention belongs to the field of braille display, and in particular relates to a braille display screen using an electroactive polymer and a display method thereof. Background technique [0002] The World Health Organization estimates that there are approximately 39 million blind and 253 million visually impaired people worldwide, and vision loss often translates into lifelong inequality. As an important means of communication between the blind and the outside world, Braille plays an irreplaceable role in the lives of the blind. Braille is a tactile representation of alphabetic and numerical symbols, using six dots to represent each letter and number, as well as musical, mathematical, and scientific symbols. Blind and visually impaired people read books and magazines in Braille in the same way that ordinary people read printed matter in visible fonts. However, because the traditional Braille reading materials have the disadvantages of high publi...

AI Technical Summary

Problems solved by technology

However, because traditional Braille reading materials have the disadvantages of high publishing cost, small quantity and variety, and not easy to carry, it is not as convenient to obtain Braille reading materials as other printed materials.

[0003] In order to meet the spiritual and material needs of the blind and visually impaired and solve the inconvenience of their lives, researchers have proposed a braille display structure, but the related braille display structure is usually driven by a rigid structure, and many external support devices need to be added, resulting in The corresponding products usually have a large volume and weight and poor reading comfort

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