Optical touch device and foldable frame assembly thereof

Patent metadata

Field	Value
Publication number	US-9829921-B2
Application number	US-201514645401-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Jul 3, 2012
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A foldable frame assembly is adapted for an optical touch device. The foldable frame assembly includes a first frame, a second frame and a third frame. The second frame is pivotally connected to a first end of the first frame and the third frame is pivotally connected to a second end of the first frame, wherein the first end is opposite to the second end. The second frame and the third frame can rotate with respect to the first frame so as to be folded or expanded with respect to the first frame.

First claim

What is claimed is:

1. An optical touch device comprising:
a foldable frame assembly comprising:
a first frame;
a second frame pivotally connected to a first end of the first frame; and
a third frame pivotally connected to a second end of the first frame, the first end being opposite to the second end, the second frame and the third frame being capable of rotating with respect to the first frame so as to be folded or expanded with respect to the first frame;

two image sensing units disposed on the second frame and the third frame respectively; and
two light emitting units disposed on the second frame and the third frame respectively and adjacent to the two image sensing units respectively;
wherein the first frame has an accommodating recess, the second frame and the third frame are capable of rotating with respect to the first frame in an identical direction so as to be folded on opposite sides of the first frame, the second frame is accommodated in the accommodating recess, and the third frame is stacked on the first frame.

Assignees

• Wistron Corp

Inventors

• Liu you-xin
• Jang Jr-Shiung
• Chou Chia-Te
• Wei Shou-Te
• Chien Shih-Che
• Huang Po-Liang

Classifications

• G06F1/1641 Primary

  the display being formed by a plurality of foldable display components (G06F1/1647 takes precedence) · CPC title

• G06F3/0421

  by interrupting or reflecting a light beam, e.g. optical touch-screen · CPC title

• G06F1/1622

  with enclosures rotating around an axis perpendicular to the plane they define or with ball-joint coupling, e.g. PDA with display enclosure orientation changeable between portrait and landscape by rotation with respect to a coplanar body enclosure · CPC title

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title

• G06F3/042 Primary

  by opto-electronic means · CPC title