公开(公告)号：US09696852B2

公开(公告)日：2017-07-04

申请号：US14670195

申请日：2015-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Jinho Youn ,  Hyokune Hwang ,  Jaecheon Sa ,  Munchae Joung ,  Sunuk Kim ,  Youngjun Cho ,  Jaehyeuck Choi ,  Seungjae Shin

IPC: G06F3/042 ,  G06F3/01 ,  G06F3/03 ,  G09G5/18 ,  G06F3/0488

CPC classification number: G06F3/042 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/0421 ,  G06F3/0428 ,  G06F3/0488 ,  G06F2203/04101 ,  G09G5/18 ,  G09G2300/04

Abstract: An electronic device having a function for sensing 2D and 3D touch which includes a display unit; a bezel frame unit; a plurality of light emitting units; a plurality of light receiving units; a light isolation unit configured to isolate a first light for sensing 2D touch and a second light for sensing 3D touch from the lights incident thereon from the light emitting units; a driving control unit configured to sequentially operate the plurality of the light emitting units; and a motion recognition unit configured to calculate a horizontal coordinate based on the quantity of the first light, to calculate a spatial coordinate based on the quantity of the second light, to extract a motion of the pointer based on the detected quantity of the light and to implement an operation corresponding to the extracted motion.