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    Color microdisplays and methods of manufacturing same
    61.
    发明授权
    Color microdisplays and methods of manufacturing same 失效
    彩色微型显示器及其制造方法

    公开(公告)号：US5940159A

    公开(公告)日：1999-08-17

    申请号：US62097

    申请日：1998-04-17

    Applicant: Phillip Alvelda

    Inventor： Phillip Alvelda

    IPC: G02B27/00 ,  G02B27/01 ,  G02F1/13357 ,  G02F1/136 ,  G02F1/1362 ,  G02F1/13 ,  G02F1/1335

    CPC classification number: G02F1/133621 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0132 ,  G02B2027/0154 ,  G02F1/136 ,  G02F1/136277 ,  G02F2201/305 ,  G02F2203/34

    Abstract: A color microdisplay utilizes diffraction gratings to provide an array of high efficiency color pixels. The microdisplay includes a semiconductor substrate and source of light disposed adjacent thereto. A cover plate may be disposed above the substrate and has a layer of conductive material on a surface of the cover plate opposite the substrate. An optically active material, such as liquid crystal material, may be disposed between the substrate and the cover plate. An array of pixels are formed on the substrate. The pixel array includes an array of diffraction grating elements. Each element includes one or more diffraction gratings. The pitch of each diffraction grating can be a function of the angle of the incident light and the desired diffraction output spectrum. An optical system directs the diffracted light from each grating through the optically active material into viewing optics.

    Abstract translation: 彩色微显示器利用衍射光栅来提供高效率彩色像素阵列。 微显示器包括半导体衬底和与其相邻布置的光源。 盖板可以设置在基板上方，并且在盖板的与基板相对的表面上具有导电材料层。 诸如液晶材料的光学活性材料可以设置在基板和盖板之间。 在衬底上形成像素阵列。 像素阵列包括衍射光栅元件的阵列。 每个元件包括一个或多个衍射光栅。 每个衍射光栅的间距可以是入射光的角度和期望的衍射输出光谱的函数。 光学系统将来自每个光栅的衍射光通过光学活性材料引导到观察光学器件中。

    Polymer dispersed liquid crystal projector with diffraction gratings along liquid crystal electrodes, a variable diaphragm, and an anamorphic lens
    64.
    发明授权
    Polymer dispersed liquid crystal projector with diffraction gratings along liquid crystal electrodes, a variable diaphragm, and an anamorphic lens 失效
    具有沿着液晶电极的衍射光栅的聚合物分散液晶投影仪，可变光阑和变形透镜

    公开(公告)号：US5526147A

    公开(公告)日：1996-06-11

    申请号：US80880

    申请日：1993-06-24

    Applicant: Hideki Omae ,  Hiroshi Takahara

    Inventor： Hideki Omae ,  Hiroshi Takahara

    IPC: G02F1/1334 ,  H04N9/31 ,  G02F1/1335 ,  G02F1/13

    CPC classification number: H04N9/3105 ,  G02F1/1334 ,  G02F2201/305

    Abstract: A liquid crystal panel includes first and second substrates at least one of which has a light transmission property and which confront each other, first and second electrode layers which are formed on opposed faces of the first and second substrates, respectively, a polymer dispersion liquid crystal layer which is sandwiched between the first and second substrates, and a layer which is formed on at least one of the first and second electrode layers and has an uneven sectional shape so as to define concavities. At least liquid crystals disposed in the concavities of the layer are aligned in a predetermined direction.

    Abstract translation: 液晶面板包括第一和第二基板，其中至少一个具有透光性并彼此面对，分别形成在第一和第二基板的相对面上的第一和第二电极层，聚合物分散液晶 夹在第一和第二基板之间的层，以及形成在第一和第二电极层中的至少一个上并且具有凹凸形状以形成凹部的层。 设置在层的凹部中的至少液晶沿预定方向排列。

    Polymer dispersed liquid crystal panel with diffraction grating
    65.
    发明授权
    Polymer dispersed liquid crystal panel with diffraction grating 失效
    具有衍射光栅的聚合物分散液晶面板

    公开(公告)号：US5299289A

    公开(公告)日：1994-03-29

    申请号：US896967

    申请日：1992-06-11

    Applicant: Hideki Omae ,  Hirosi Takahara ,  Takaaki Tanaka

    Inventor： Hideki Omae ,  Hirosi Takahara ,  Takaaki Tanaka

    IPC: G02F1/1333 ,  G02F1/1334 ,  H04N9/31 ,  G02F1/137 ,  G02F1/13

    CPC classification number: G02F1/1334 ,  G02F1/133371 ,  H04N9/3105 ,  G02F2201/305 ,  G02F2203/22

    Abstract: A layer having an irregular sectional surface is formed on the surface of at least one of a pixel electrode and confronting electrode of a liquid crystal layer so as to confront a liquid crystal layer. The liquid crystal layer is formed of a polymer dispersed liquid crystal. If the layer having an irregular sectional surface is formed in a convex and concave pattern regularly and cyclically, the thus formed layer serves as a diffraction grating. When the liquid crystal is in an OFF condition, the refractive index n of the diffraction grating is different from the refractive index of the liquid crystal layer. As a result, an incident light to the liquid crystal panel is scattered and at the same time, diffracted. When the liquid crystal in in an ON condition, there is no difference in the refractive index between the diffraction grating and the liquid crystal, and the incident light passes straight through. Using the liquid crystal panel as a light valve, the light from a light source is incident to the liquid crystal panel, and the image formed on the liquid crystal panel is projected through a projection lens onto a screen. In the case of a black display, the incident light is scattered or diffracted in the liquid crystal panel according to the projected image. The scattered or diffracted light is stopped by a light shielding part of a aperture, and thus does not arrive at the screen.

    Abstract translation: 在液晶层的像素电极和相对电极中的至少一个的表面上形成具有不规则截面的层，以面对液晶层。 液晶层由聚合物分散液晶形成。 如果具有不规则截面的层规则地和循环地形成为凹凸图案，则由此形成的层用作衍射光栅。 当液晶处于OFF状态时，衍射光栅的折射率n与液晶层的折射率不同。 结果，向液晶面板的入射光被散射，同时衍射。 当液晶处于ON状态时，衍射光栅与液晶之间的折射率无差异，入射光直线通过。 使用液晶面板作为光阀，来自光源的光入射到液晶面板，并且形成在液晶面板上的图像通过投影透镜投射到屏幕上。 在黑色显示的情况下，根据投影图像，入射光在液晶面板中散射或衍射。 散射或衍射光被光圈的遮光部分阻挡，因此不会到达屏幕。

    Light valve for use in a color display unit with a diffraction grating assembly included in the valve
    67.
    发明授权
    Light valve for use in a color display unit with a diffraction grating assembly included in the valve 失效
    用于具有包括在阀中的衍射光栅组件的彩色显示单元的光阀

    公开(公告)号：US4751509A

    公开(公告)日：1988-06-14

    申请号：US870189

    申请日：1986-06-03

    Applicant: Keiichi Kubota ,  Masao Imai

    Inventor： Keiichi Kubota ,  Masao Imai

    IPC: G02F1/133 ,  G02F1/13357 ,  G09G3/00 ,  G09G3/36

    CPC classification number: G02F1/133621 ,  G02F1/132 ,  G09G3/002 ,  G09G3/025 ,  G02F2201/305

    Abstract: In a display unit for use in projecting projection light onto a screen to display a picture, a light valve comprises a diffraction grating assembly for selecting one of chrominance components included in an incident light given through one surface of the light valve. The diffraction grating assembly is divided into a plurality of grating elements arranged to give different colors corresponding to the chrominance components. In addition, a control beam, such as a laser, is incident onto the other surface of the light valve to selectively scan the grating elements and to heat selected ones of the grating elements through an energy converting film. Thus, the incident light is subjected to modulation on the grating elements in accordance with heat energy and emitted through a liquid crystal as controlled light from the light valve. The controlled light is sent as the projection light to the screen.

    Abstract translation: 在用于将投影光投影到屏幕上以显示图像的显示单元中，光阀包括用于选择包括在通过光阀的一个表面的入射光中的一个色度分量的衍射光栅组件。 衍射光栅组件被分成多个光栅元件，其被布置成给出对应于色度分量的不同颜色。 此外，诸如激光器的控制光束入射到光阀的另一表面上，以选择性地扫描光栅元件并通过能量转换膜加热所选光栅元件。 因此，入射光根据热能对光栅元件进行调制，并通过液晶作为受光从光阀发射。 受控光作为投影光发送到屏幕。

    Light source apparatus for light measurement
    68.
    发明授权
    Light source apparatus for light measurement 有权

    公开(公告)号：US12117340B2

    公开(公告)日：2024-10-15

    申请号：US17598770

    申请日：2020-03-25

    Applicant: Ushio Denki Kabushiki Kaisha

    Inventor： Go Yamada ,  Takuma Yokoyama

    IPC: G01J3/18 ,  G01J3/10 ,  G01J3/14 ,  G02F1/365

    CPC classification number: G01J3/10 ,  G01J3/14 ,  G01J3/18 ,  G02F1/365 ,  G02F2201/305

    Abstract: To provide a light source apparatus for light measurement in which time wavelength uniqueness is not lost even in a case of high output, and to enable spectroscopic measurement with high accuracy and at high speed. Broadband pulsed light having a continuous spectrum over a wavelength width of at least 50 nm in a range of 900 to 1300 nm is emitted from a pulsed light source, and divided for each wavelength by a divider, and light having each wavelength is transmitted by each of stretch fibers and emitted from a coupler. The stretch fibers have different lengths such that an elapsed time and the wavelength in one pulse correspond to each other on a one-to-one basis at an emission end.

    Display device
    70.
    发明授权
    Display device 有权

    公开(公告)号：US11988916B2

    公开(公告)日：2024-05-21

    申请号：US18329934

    申请日：2023-06-06

    Applicant: Japan Display Inc.

    Inventor： Chikyu Nakaoka ,  Masaaki Kabe

    IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357

    CPC classification number: G02F1/133504 ,  G02F1/133354 ,  G02F1/133512 ,  G02F1/133567 ,  G02F1/133602 ,  G02F1/133621 ,  G02F1/133528 ,  G02F2201/305 ,  G02F2202/28

    Abstract: According to one embodiment, a display device includes a display panel that includes a display portion including pixels and a non-display portion including an opening, an illumination device, and a color separation element provided between the display panel and the illumination device. The color separation element includes a first element overlapping the pixel and a second element overlapping the opening, the first element separates illumination light from the illumination device into light of a plurality of colors and irradiates the pixel with the light, and the second element separates illumination light from the illumination device into light of a plurality of colors and irradiates the opening with the light.

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