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Stylus Friction Imitation on Glass Display via Vacuuming Suction Force.

IP.com Disclosure Number: IPCOM000228799D
Original Publication Date: 2013-Jul-08
Included in the Prior Art Database: 2013-Jul-08
Document File: 2 page(s) / 29K

Publishing Venue

Lenovo

Related People

Elif Karakaya: INVENTOR

Abstract

Disclosed is a system to imitate and increase the friction of a stylus on a glass display. In daily life, when people write on paper with a pen, the frictional force experienced is a major haptic feedback and desirable ergonomically. Friction is caused by the surface irregularities between two surfaces sliding against each other. This makes it possible to move the pen on the paper, and at the same time transfer the ink onto the paper with the surface tension force. However, when people write on a glass display with a stylus, the surface is very smooth compared to the surface of any paper, and if one tries to write on a perfectly smooth surface, there would be no friction. As a result, the users observe less friction when a plastic stylus is used on a glass surface.

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Stylus Friction Imitation on Glass Display via Vacuuming Suction Force

Disclosed is a system to imitate and increase the friction of a stylus on a glass display. In daily life, when people write on paper with a pen, the frictional force experienced is a major haptic feedback and desirable ergonomically. Friction is caused by the surface irregularities between two surfaces sliding against each other. This makes it possible to move the pen on the paper, and at the same time transfer the ink onto the paper with the surface tension force.

However, when people write on a glass display with a stylus, the surface is very smooth compared to the surface of any paper, and if one tries to write on a perfectly smooth surface, there would be no friction. As a result, the users observe less friction when a plastic stylus is used on a glass surface.

This invention changes the stylus tip properties and creates an adhesion force between the glass surface and the stylus. The concept is similar to drinking juice with the use of a straw. Hence a stronger pull between the surfaces is achieved and more friction is felt when the user is moving the stylus.

The invention relates to a writing device, i.e. a stylus that is used on the glass surfaces of touch devices. It suggests inserting a small, low-power vacuuming apparatus inside the stylus. (Fig. 1)

In cooperation with the vacuuming apparatus placed inside, the tip of the stylus is modified so that it has some number of small-sized pores, either a single pore, (Fig. 2), or more than one tiny pores, (Fig.1), that will make it possible for the stylus tip to vacuum some of the air...