利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

94 条记录 (耗时 0.027 秒)

    Thin film transistor
    1.
    发明授权
    Thin film transistor 失效
    薄膜晶体管

    公开(公告)号：US5124769A

    公开(公告)日：1992-06-23

    申请号：US663372

    申请日：1991-03-01

    申请人： Keiji Tanaka ,  Kenji Nakazawa ,  Shiro Suyama ,  Kinya Kato

    发明人： Keiji Tanaka ,  Kenji Nakazawa ,  Shiro Suyama ,  Kinya Kato

    IPC分类号： H01L29/78 ,  H01L29/786

    CPC分类号： H01L29/78648 ,  H01L29/7831 ,  H01L29/78645

    摘要： The thin film transistor comprises source and drain regions, a channel forming region formed between the source and drain regions, a first (main) gate for turning on or off the transistor, and in particular at least one second (sub-) gate for reducing turn-off leakage current. When the n-channel transistor is turned off, for example, a negative voltage is applied to the main gate to form a p-channel layer in the channel forming region under the main gate and a positive voltage is applied to the subgate to form an n-channel layer in the channel forming region under the subgate, for instance, so that a pn junction can be formed between under the main gate and the subgate to reduce the turn-off leakage current. The above-mentioned disclosure can be clearly applied to p-channel transistors. Further, the above four-terminal transistor can be simply modified to a three-terminal transistor by connecting the main gate to the subgate via a diode or a capacitor or by directly connecting the drain region to the subgate. Further, the above three-terminal transistor can be manufactured in accordance with only the ordinary device manufacturing process.

    Optical device and display apparatus using light diffraction and light guide
    6.
    发明授权
    Optical device and display apparatus using light diffraction and light guide 失效
    使用光衍射和光导的光学装置和显示装置

    公开(公告)号：US06819393B1

    公开(公告)日：2004-11-16

    申请号：US10615571

    申请日：2003-07-08

    申请人： Munekazu Date ,  Shiro Suyama ,  Kinya Kato ,  Kazutake Uehira

    发明人： Munekazu Date ,  Shiro Suyama ,  Kinya Kato ,  Kazutake Uehira

    IPC分类号： G02F113

    CPC分类号： G02F1/133615 ,  G02F1/13336 ,  G02F1/1334 ,  G02F1/133553 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/1393 ,  G02F2001/13347 ,  G02F2001/133616 ,  G02F2001/13712 ,  G02F2201/305 ,  G02F2203/023 ,  G02F2203/026

    摘要： An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a first electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. At least one of said first electrode and said second electrode has a periodic structure for inducing a fine periodic structure for light diffraction in said optical control layer.

    摘要翻译： 本发明的光学装置和显示装置被构造成能够提高输出光强度的显示特性，显示对比度，以及由外部光引起的散射光的减少，并且还能够提供大屏幕。 光学装置具有第一层叠体和多个第二层叠体。 第一层叠体包括光导，第一电极和光学控制层。 第二层叠体包括多个第二电极，反射膜和基板。 所述第一电极和所述第二电极中的至少一个具有用于在所述光学控制层中诱导用于光衍射的精细周期性结构的周期性结构。

    Method for making an optical device using a laser beam interference pattern
    9.
    发明授权
    Method for making an optical device using a laser beam interference pattern 失效
    使用激光束干涉图案制造光学装置的方法

    公开(公告)号：US5748272A

    公开(公告)日：1998-05-05

    申请号：US661018

    申请日：1996-06-10

    申请人： Keiji Tanaka ,  Kinya Kato ,  Shinji Tsuru ,  Shigenobu Sakai

    发明人： Keiji Tanaka ,  Kinya Kato ,  Shinji Tsuru ,  Shigenobu Sakai

    IPC分类号： G02F1/1334 ,  G02F1/1347 ,  G02F1/1333

    CPC分类号： G02F1/13342 ,  G02F2001/13478

    摘要： A polymer dispersed liquid crystal optical device is presented which has optical elements which control reflection, transmission and diffraction of incident light entering the device by adjusting the magnitude of the electrical field applied to the device between a maximum and a minimum limits. An optical element consists of a polymer material having an electrical field-independent refractive index, and a liquid crystal material having an electrical field-dependent refractive index. The optical elements are distributed through the device at specific inter-element spacings, thus enabling to generate reflection of incident light in accordance with Bragg's law of reflection. The inter-element spacings can also be varied by the application of the field, thus enabling to generate reflection of light of a desired wavelength. Such optical elements are ideal for use in full color optical display apparatus of a matrix driven type. Methods for producing the optical device and optical display apparatus are also presented.

    摘要翻译： 提出了一种聚合物分散液晶光学器件，其具有通过调节在最大和最小极限之间施加到器件的电场的幅度来控制入射到入射光的入射光的反射，透射和衍射的光学元件。 光学元件由具有电场非依赖折射率的聚合物材料和具有电场相关折射率的液晶材料组成。 光学元件以特定的元件间间隔分布在器件中，因此能够根据布拉格反射定律产生入射光的反射。 元件间距也可以通过场的应用而变化，从而能够产生所需波长的光的反射。 这种光学元件是用于矩阵驱动型的全色光学显示装置的理想选择。 还提出了用于制造光学装置和光学显示装置的方法。

    Optical devices with high polymer material and method of forming the same
    10.
    发明授权
    Optical devices with high polymer material and method of forming the same 失效
    具有高聚合物材料的光学器件及其形成方法

    公开(公告)号：US5751452A

    公开(公告)日：1998-05-12

    申请号：US198811

    申请日：1994-02-18

    申请人： Keiji Tanaka ,  Kinya Kato ,  Shinji Tsuru ,  Shigenobu Sakai

    发明人： Keiji Tanaka ,  Kinya Kato ,  Shinji Tsuru ,  Shigenobu Sakai

    IPC分类号： G02F1/1334 ,  G02F1/1347 ,  G02F1/13 ,  G02F1/133 ,  G02F1/137

    CPC分类号： G02F1/13342 ,  G02F2001/13478

    摘要： A polymer dispersed liquid crystal optical device is presented which has optical elements which control reflection, transmission and diffraction of incident light entering the device by adjusting the magnitude of the electrical field applied to the device between a maximum and a minimum limits. An optical element consists of a polymer material having an electrical field-independent refractive index, and a liquid crystal material having an electrical field-dependent refractive index. The optical elements are distributed through the device at specific inter-element spacings, thus enabling to generate reflection of incident light in accordance with Bragg's law of reflection. The inter-element spacings can also be varied by the application of the field, thus enabling to generate reflection of light of a desired wavelength. Such optical elements are ideal for use in full color optical display apparatus of a matrix driven type. Methods for producing the optical device and optical display apparatus are also presented.

    摘要翻译： 提出了一种聚合物分散液晶光学器件，其具有光学元件，其通过调节在最大和最小极限之间施加到器件的电场的幅度来控制入射到入射光的入射光的反射，透射和衍射。 光学元件由具有电场非依赖折射率的聚合物材料和具有电场相关折射率的液晶材料组成。 光学元件以特定的元件间间隔分布在器件中，因此能够根据布拉格反射定律产生入射光的反射。 元件间距也可以通过场的应用而变化，从而能够产生所需波长的光的反射。 这种光学元件是用于矩阵驱动型的全色光学显示装置的理想选择。 还提出了用于制造光学装置和光学显示装置的方法。