Optical touch apparatus having a light guide with scattering particles
    1.
    发明授权
    Optical touch apparatus having a light guide with scattering particles 有权
    具有散射粒子的导光体的光学触摸装置

    公开(公告)号:US08884923B2

    公开(公告)日:2014-11-11

    申请号:US12881176

    申请日:2010-09-14

    IPC分类号: G06F3/042 F21V8/00

    摘要: An optical touch apparatus includes a light source, light guide unit, and optical detector. The light source next to the display area emits a beam. The light guide unit next to the display area and in the transmission path of the beam includes a light guide body and a Lambertian scattering structure. The light guide body has first, second, third, fourth, and light incident surfaces. The beam enters the light guide body through the light incident surface and is transmitted from the first surface to a sensing space in front of the display area. The Lambertian scattering structure is disposed on at least one of the second, third, and fourth surfaces for scattering the beam to the first surface. The optical detector next to the display area senses a change in light intensity of the beam in the sensing space. An optical touch display apparatus is also provided.

    摘要翻译: 光学触摸装置包括光源,导光单元和光学检测器。 显示区旁边的光源发射光束。 在显示区域和光束的传输路径中的导光单元包括导光体和朗伯散射结构。 导光体具有第一,第二,第三,第四和光入射表面。 光束通过光入射表面进入导光体,并从第一表面传输到显示区域前面的感测空间。 朗伯散射结构设置在第二,第三和第四表面中的至少一个上,用于将光束散射到第一表面。 显示区域旁边的光学检测器检测感测空间中的光束的光强度的变化。 还提供了一种光学触摸显示装置。

    Optical touch apparatus having a light guide with scattering particles
    2.
    发明授权
    Optical touch apparatus having a light guide with scattering particles 有权
    具有散射粒子的导光体的光学触摸装置

    公开(公告)号:US08537138B2

    公开(公告)日:2013-09-17

    申请号:US12943037

    申请日:2010-11-10

    IPC分类号: G06F3/042

    CPC分类号: G06F3/0428

    摘要: 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.

    摘要翻译: 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。

    OPTICAL TOUCH APPARATUS
    3.
    发明申请
    OPTICAL TOUCH APPARATUS 有权
    光学触控装置

    公开(公告)号:US20110122097A1

    公开(公告)日:2011-05-26

    申请号:US12943037

    申请日:2010-11-10

    IPC分类号: G06F3/042

    CPC分类号: G06F3/0428

    摘要: 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.

    摘要翻译: 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。

    OPTICAL TOUCH APPARATUS AND OPTICAL TOUCH DISPLAY APPARATUS
    4.
    发明申请
    OPTICAL TOUCH APPARATUS AND OPTICAL TOUCH DISPLAY APPARATUS 有权
    光触控装置和光触控显示装置

    公开(公告)号:US20110122094A1

    公开(公告)日:2011-05-26

    申请号:US12881176

    申请日:2010-09-14

    IPC分类号: G06F3/042

    摘要: An optical touch apparatus includes a light source, light guide unit, and optical detector. The light source next to the display area emits a beam. The light guide unit next to the display area and in the transmission path of the beam includes a light guide body and a Lambertian scattering structure. The light guide body has first, second, third, fourth, and light incident surfaces. The beam enters the light guide body through the light incident surface and is transmitted from the first surface to a sensing space in front of the display area. The Lambertian scattering structure is disposed on at least one of the second, third, and fourth surfaces for scattering the beam to the first surface. The optical detector next to the display area senses a change in light intensity of the beam in the sensing space. An optical touch display apparatus is also provided.

    摘要翻译: 光学触摸装置包括光源,导光单元和光学检测器。 显示区旁边的光源发射光束。 在显示区域和光束的传输路径中的导光单元包括导光体和朗伯散射结构。 导光体具有第一,第二,第三,第四和光入射表面。 光束通过光入射表面进入导光体,并从第一表面传输到显示区域前面的感测空间。 朗伯散射结构设置在第二,第三和第四表面中的至少一个上,用于将光束散射到第一表面。 显示区域旁边的光学检测器检测感测空间中的光束的光强度的变化。 还提供了一种光学触摸显示装置。