公开(公告)号：US08537138B2

公开(公告)日：2013-09-17

申请号：US12943037

申请日：2010-11-10

Applicant: Chih-Jen Tsang ,  Kuo-Nang Lin ,  Cheng-Yi Lien

Inventor： Chih-Jen Tsang ,  Kuo-Nang Lin ,  Cheng-Yi Lien

IPC: G06F3/042

CPC classification number: G06F3/0428

Abstract: An optical touch apparatus includes a light source capable of emitting a beam, a light guide unit disposed in a transmission path of the beam, and an optical detector. The light guide unit includes a light guide body having a first surface, a second surface, a third surface, a fourth surface, and a scattering structure disposed on at least one of the second surface, the third surface, and the fourth surface. The beam is capable of entering the light guide body, being scattered to the first surface by the scattering structure, and then being transmitted to a sensing space. The scattering structure includes separated scattering patterns including a resin composition and scattering particles dispersed in the resin composition. The ratio of the weight percentage of the scattering particles to the weight percentage of the resin composition is equal to or greater than 0.1.

Abstract translation: 光学触摸装置包括能够发射光束的光源，设置在光束的传输路径中的光导单元和光学检测器。 导光单元包括具有第一表面，第二表面，第三表面，第四表面和布置在第二表面，第三表面和第四表面中的至少一个上的散射结构的导光体。 光束能够进入导光体，通过散射结构散射到第一表面，然后传输到感测空间。 散射结构包括分散在树脂组合物中的分散的散射图案，包括树脂组合物和散射颗粒。 散射粒子的重量百分比与树脂组合物的重量百分比的比等于或大于0.1。

公开(公告)号：US20110122097A1

公开(公告)日：2011-05-26

申请号：US12943037

申请日：2010-11-10

Applicant: Chih-Jen Tsang ,  Kuo-Nang Lin ,  Cheng-Yi Lien

Inventor： Chih-Jen Tsang ,  Kuo-Nang Lin ,  Cheng-Yi Lien

IPC: G06F3/042

CPC classification number: G06F3/0428

Abstract: An optical touch apparatus includes a light source capable of emitting a beam, a light guide unit disposed in a transmission path of the beam, and an optical detector. The light guide unit includes a light guide body having a first surface, a second surface, a third surface, a fourth surface, and a scattering structure disposed on at least one of the second surface, the third surface, and the fourth surface. The beam is capable of entering the light guide body, being scattered to the first surface by the scattering structure, and then being transmitted to a sensing space. The scattering structure includes separated scattering patterns including a resin composition and scattering particles dispersed in the resin composition. The ratio of the weight percentage of the scattering particles to the weight percentage of the resin composition is equal to or greater than 0.1.

Abstract translation: 光学触摸装置包括能够发射光束的光源，设置在光束的传输路径中的光导单元和光学检测器。 导光单元包括具有第一表面，第二表面，第三表面，第四表面和布置在第二表面，第三表面和第四表面中的至少一个上的散射结构的导光体。 光束能够进入导光体，通过散射结构散射到第一表面，然后传输到感测空间。 散射结构包括分散在树脂组合物中的分散的散射图案，包括树脂组合物和散射颗粒。 散射粒子的重量百分比与树脂组合物的重量百分比的比等于或大于0.1。