Touch pen and display device using touch pen

Patent metadata

Field	Value
Publication number	US-2019174643-A1
Application number	US-201816116741-A
Country	US
Kind code	A1
Filing date	Aug 29, 2018
Priority date	Aug 31, 2017
Publication date	Jun 6, 2019
Grant date	—

Abstract

A touch pen includes a shaft-shaped body, a pen tip provided on a front end of the body, a switch unit arranged in a line on a side face of the body, a battery disposed inside the body, and a barrel in which a slit having a front opening is formed in an axial direction. A back end of the body is inserted from the opening such that the barrel covers an outer face of the body with the switch unit positioned in the slit, and the barrel has a center of gravity on an opposite side of the slit as seen in a transverse cross-section. When the touch pen is placed horizontally in a state with the barrel mounted on the outer face of the body, the center of gravity is positioned on the opposite side of the switch unit and the switch unit is positioned on top.

First claim

What is claimed is:

1 . A touch pen of a pen-type electronic input device comprising:
a shaft-shaped body; a pen tip used to input information and provided on a front end of the body; a switch unit used to perform operations and arranged in a line on a side face of the body; a battery disposed inside the body; and a barrel in which a slit having a front opening is formed in an axial direction, wherein a back end of the body is inserted from the front opening of the barrel such that the barrel covers an outer face of the body with the switch unit positioned in the slit, and the barrel has a center of gravity on an opposite side of the slit as seen in a transverse cross-section, and in a case of the touch pen being placed horizontally in a state in which the barrel is mounted on the outer face of the body, the center of gravity is positioned on the opposite side of the switch unit and the switch unit is positioned on top.

2 . The touch pen according to claim 1 , wherein
the battery is provided inside a housing of the body in a central part in an axial direction of the body, structured such that in the housing, a battery lid is removable from the barrel to allow the battery to be inserted or removed.

3 . The touch pen according to claim 1 , wherein
in the barrel, a diagonal front opening is formed in a front end part, in which a back end part of the body is inserted from the diagonal opening such that the outer face of the body is covered by the barrel.

4 . The touch pen according to claim 1 , further comprising:
a cap removably provided on the back end of the body, wherein in a case of the barrel covering the body, the barrel is affixed to the body by the affixing of the cap to the body, and by removing the cap, the barrel becomes removable from the body.

5 . A display device comprising:
a touch panel that receives handwriting input; a display unit that displays a trail of handwriting received by the touch panel; and an operating member that performs an input operation with respect to the touch panel, wherein the touch pen according to claim 1 is used as the operating member.

Assignees

• Sharp Kk

Inventors

• Saito Hiroya
• Kawashima Hirokazu

Classifications

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/03545 Primary

  Pens or stylus · CPC title

• H05K5/0086

  portable, e.g. battery operated apparatus (casings for switching devices H01H9/02) · CPC title

• H05K5/0217 Primary

  Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03) · CPC title