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    • 5. 发明申请
    • MICROELECTROMECHANICAL SYSTEMS DISPLAY ELEMENT WITH PHOTOVOLTAIC STRUCTURE
    • 微电子系统显示元件与光伏结构
    • WO2009123898A3
    • 2010-11-18
    • PCT/US2009038282
    • 2009-03-25
    • QUALCOMM MEMS TECHNOLOGIES INCBITA IONKOTHARI MANISHKHAZENI KASRAMIENKO MAREKXU GANG
    • BITA IONKOTHARI MANISHKHAZENI KASRAMIENKO MAREKXU GANG
    • G02B26/00
    • G02B26/001G09G3/3466
    • A microelectromechanical systems (MEMS) display element may include a photovoltaic structure configured to generate electric energy from incident light. In one embodiment, the display element includes a first layer that is at least partially transmissive of light, a second layer that is at least partially reflective of light, and a photovoltaic element that is formed on the first layer or the second layer or formed between the first layer and the second layer. The second layer is spaced from the first layer and is selectably movable between a first position in which the display element has a first reflectivity and a second position in which the display element has a second reflectivity. The first reflectivity is greater than the second reflectivity. The photovoltaic element is at least partially absorptive of light and is configured to convert a portion of the absorbed light into electric energy, at least when the second layer is in the second position.
    • 微机电系统(MEMS)显示元件可以包括被配置为从入射光产生电能的光伏结构。 在一个实施例中,显示元件包括至少部分地透射光的第一层,至少部分地反射光的第二层,以及形成在第一层或第二层上或形成在第一层或第二层之间的光电元件 第一层和第二层。 第二层与第一层间隔开并且可选择地在显示元件具有第一反射率的第一位置和显示元件具有第二反射率的第二位置之间移动。 第一反射率大于第二反射率。 光电元件至少部分地吸收光,并且被配置为至少当第二层处于第二位置时将吸收的光的一部分转换成电能。
    • 7. 发明申请
    • LIGHT GUIDE INCLUDING CONJUGATE FILM
    • 光导体,包括连接膜
    • WO2009085706A3
    • 2009-12-17
    • PCT/US2008086875
    • 2008-12-15
    • QUALCOMM MEMS TECHNOLOGIES INCHOLMAN ROBERT LXU GANGGRUHLKE RUSSELL WAYNESAMPSELL MATTMIENKO MAREK
    • HOLMAN ROBERT LXU GANGGRUHLKE RUSSELL WAYNESAMPSELL MATTMIENKO MAREK
    • G02B6/00G02F1/13357
    • G02B6/0038G02B6/0055
    • In various embodiments described herein, a front light guide panel (80) comprises a plurality surface relief features (89) having a variety of different sloping surface portions (89a, 89b). Light (170) injected into an edge of the light guide (80) propagates though the light guide (80) until it strikes one of the surface relief features (89). The light is then turned by total internal reflection such that the light is directed onto a reflective modulator array (81) rearward of the light guide panel (80). The light reflects from the modulator array (81) and is transmitted back through the surface features (89) of the light guide panel (80). However, depending upon where the light is incident on the surface features, the light will be refracted at different angles by the different sloping surface portions. As a result, light reflected from a single point on the modulator array appears to originate from different locations, and ghost images appear. To reduce such ghosting, a conjugate film (92) having equal and opposite surface relief features (99) is disposed forward of the light guide panel (80). Light reflected from the modulator array (81) and passing through surface relief features (89) on the light guide panel is refracted a second time by the conjugate film (92) to return the rays to their original trajectory.
    • 在本文所述的各种实施例中,前导光板(80)包括具有各种不同倾斜表面部分(89a,89b)的多个表面浮雕特征(89)。 注入光导(80)的边缘的光(170)通过光导(80)传播,直到其撞击到一个表面浮雕特征(89)。 然后光被全内反射转动,使得光被引导到导光板(80)后面的反射调制器阵列(81)上。 光从调制器阵列(81)反射并通过导光板(80)的表面特征(89)传输回来。 然而,根据光入射在表面特征上的位置,光将被不同的倾斜表面部分以不同的角度折射。 结果,从调制器阵列上的单个点反射的光似乎源于不同的位置,并且出现了幽灵图像。 为了减少这种重影,具有相同和相对的表面浮雕特征(99)的共轭膜(92)被布置在导光板(80)的前方。 从调制器阵列(81)反射并穿过导光板上的表面浮雕特征(89)的光被共轭膜(92)第二次折射,以将光线返回到其原始轨迹。