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    2.
    发明专利
    未知

    公开(公告)号：DE60128441T2

    公开(公告)日：2008-02-14

    申请号：DE60128441

    申请日：2001-07-03

    Applicant: SEIKO EPSON CORP

    Inventor： UCHIYAMA SHOICHI ,  HASEI HIRONORI ,  KIGUCHI HIROSHI ,  MIYASHITA SATORU

    IPC: G03B21/60 ,  G03B21/62

    Abstract: Disclosed is a method of producing a transmissive screen having a structure including light-absorption-material patterns (102) that are formed on locations corresponding to locations of lens members (105), which are provided side by side on a light-transmissive substrate (101), and to locations of boundary portions between the corresponding lens members (105), the method comprising the step of forming at least one of volume-type phase devices (802) and precursors of volume-type phase devices (802) by causing drops of volume-type phase device compositions to be discharged and to land, with the volume-type phase devices (802) having random phase distributions being provided side by side on at least one of a surface of the light-transmissive substrate (101) where the lens members (105) are formed and the back side of the surface. It is possible to provide a method of producing a transmissive screen, which makes it possible to realize at a low cost a bright transmissive screen which has high contrast ratio and which can display a high-quality image having no moiré and no speckles.

    3.
    发明专利
    未知

    公开(公告)号：DE69636109T2

    公开(公告)日：2006-09-21

    申请号：DE69636109

    申请日：1996-11-06

    Applicant: SEIKO EPSON CORP

    Inventor： MIYASHITA SATORU ,  YOKOYAMA OSAMU ,  FUNAMOTO TATSUAKI

    IPC: F21V8/00 ,  G02B6/00

    Abstract: A lighting apparatus (10) comprises: light emitting means (322); light guiding means (307) which has a light-output-side surface and guides the light from said light emitting means (322) through said light-output-side surface toward a light receiving element (302) with an improved directivity; and direction changing means for changing the direction of the light which is output from said light guiding means (307) to a direction substantially perpendicular to said light receiving element (302). The direction changing means (321) includes a prism array which comprises a plurality of prisms, each of said prisms having an apex pointing to said light-output-side surface; wherein each of said prisms has a first surface for receiving the light and a second surface, said apex being formed by said first and second surfaces.

    4.
    发明专利
    未知

    公开(公告)号：DE69636109D1

    公开(公告)日：2006-06-08

    申请号：DE69636109

    申请日：1996-11-06

    Applicant: SEIKO EPSON CORP

    Inventor： MIYASHITA SATORU ,  YOKOYAMA OSAMU ,  FUNAMOTO TATSUAKI

    IPC: F21V8/00 ,  G02B6/00

    Abstract: A lighting apparatus (10) comprises: light emitting means (322); light guiding means (307) which has a light-output-side surface and guides the light from said light emitting means (322) through said light-output-side surface toward a light receiving element (302) with an improved directivity; and direction changing means for changing the direction of the light which is output from said light guiding means (307) to a direction substantially perpendicular to said light receiving element (302). The direction changing means (321) includes a prism array which comprises a plurality of prisms, each of said prisms having an apex pointing to said light-output-side surface; wherein each of said prisms has a first surface for receiving the light and a second surface, said apex being formed by said first and second surfaces.

    5.
    发明专利
    未知

    公开(公告)号：DE69735782D1

    公开(公告)日：2006-06-01

    申请号：DE69735782

    申请日：1997-09-24

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  KAMAKURA HIROSHI ,  SHIMODA TATSUYA

    IPC: G02F1/13357 ,  G03B21/16 ,  H04N9/31 ,  H05B33/02 ,  H05B44/00

    Abstract: A projection display apparatus employing organic EL elements is presented that is light in weight, is small in size, and can be practically implemented. In particular, the apparatus suppresses light-emission performance degradation caused by generated heat, thereby extending useful life, stabilizing brightness, and securing continual maximum brightness. The apparatus comprises: liquid crystal panels 12R, 12G, and 12B; light emitting units 13R, 13G, and 13B, positioned at the back of the liquid crystal panels and provided with organic EL elements as light emitting layers; and cooling bodies 14R, 14G, and 14B, positioned at the back of the light emitting units, for dispersing the heat generated by the light emitting layers. The cooling bodies 14R, 14G, and 14B may, for example, be electronic cooling elements that employ the Peltier effect to absorb and radiate the generated heat. Alternatively, the cooling bodies may be configured as heat-dispersing fins that guide and disperse generated heat.

    6.
    发明专利
    未知

    公开(公告)号：DE69729519T2

    公开(公告)日：2005-08-25

    申请号：DE69729519

    申请日：1997-02-13

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  SHIMODA TATSUYA ,  MIYASHITA SATORU ,  FUJIMORI YUJI ,  ATOBE MITSURO ,  AOYAMA TAKU ,  FUNAMOTO TATSUAKI

    IPC: G02B26/08 ,  G09F9/37 ,  H04N5/74 ,  H04N9/31

    Abstract: The object of the invention is to provide an optical modulator device, a display unit and an electronic apparatus, each capable of presenting a high-contrast and bright image. An optical modulator device 101 comprises a substrate and, on the substrate, an optical modulator structure in which a piezoelectric thin film layer 13 having piezoelectric property is interposed between thin film electrode layers 12, 14 having electrically conductive property with at least one of the thin film electrode layers 12, 14 having light reflective property, wherein the optical modulator structure is driven on a mirror element by mirror element basis, with one mirror element 15 being handled as a unit working independently to modulate a light ray.

    7.
    发明专利
    未知

    公开(公告)号：DE69731163D1

    公开(公告)日：2004-11-18

    申请号：DE69731163

    申请日：1997-05-09

    Applicant: SEIKO EPSON CORP

    Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  SHIMODA TATSUYA

    IPC: G02F1/1335 ,  G02F1/13357 ,  H01L51/52 ,  H04N9/31 ,  H05B33/22 ,  G02F1/13 ,  H05B33/12

    Abstract: A liquid-crystal projection device according to the present invention comprises an organic electroluminescent element 12 that is constituted by sandwiching an organic thin-film layer (125) between an electrode layer (126) that reflects light and a transparent electrode layer (123) that transmits light, and a transparent liquid crystal panel (20) that controls passage of light emitted from the surface of the organic electroluminescent element 12; and also comprises a half-mirror layer (121) arranged on the side where light is output from this transparent electrode layer (123) and that reflects some of the incoming light through the transparent electrode layer (123) to electrode layer (126) and that transmits the rest of this light; the distance between the half-mirror layer (121) and the electrode layer (126) being set to the optical distance of resonance of this light.

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