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.

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.

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.

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.

公开(公告)号：DE69232283D1

公开(公告)日：2002-01-24

申请号：DE69232283

申请日：1992-10-08

Applicant: SEIKO EPSON CORP

Inventor： KOMATSU AKIRA ,  KATADA TOSHIHARU ,  YOKOYAMA OSAMU

IPC: G02C7/02 ,  G02C7/06

Abstract: Two coordinate axes X and Y contacting the refracting interface of a lens for glasses according to the present invention are set on a predetermined point on the same refracting interface to define the directions of the coordinate axes and an XY plane including the two axes. When a perpendicular line is then drawn from an arbitrary point on the refracting interface to the XY plane with the length of this perpendicular line, the X coordinate of the intersection of the perpendicular line and XY plane and the Y coordinate of the same intersection represented by z, x and y respectively, a value of z is expressed by the equation (1) wherein R = X + Y ; Cx, Cy, Kx, Ky and An,m,j are constants determining the shape of a lens; n, m and j are integers of 2

公开(公告)号：DE69515615T2

公开(公告)日：2000-08-17

申请号：DE69515615

申请日：1995-12-13

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU ,  KANEKO TAKEO

IPC: G01S7/48 ,  G01S7/481 ,  G01S7/484 ,  G01S17/02 ,  G01S17/93

Abstract: A light-sensing device comprises a light source consisting of a semiconductor laser (100), a light-transmitting optical system having a lens surface (12) and a diffraction grating surface (14) arranged on the optical axis of light emitted from this light source, and a light-receiving detection system (20) that detects any of the emitted light that is reflected from an object to be inspected. This emitted light is diffracted in at least two intersecting directions by the diffraction grating surface.

公开(公告)号：DE69930646D1

公开(公告)日：2006-05-18

申请号：DE69930646

申请日：1999-09-01

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  SHIMODA TATSUYA ,  TAGA YASUNORI ,  TOKITO SHIZUO ,  NODA KOJI

IPC: H05B33/12 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  G09F9/00 ,  G09G3/34 ,  H01L27/32 ,  H04N5/74 ,  H04N9/31 ,  H05B33/00 ,  H05B33/14 ,  H05B44/00

Abstract: At the rear of liquid crystal display elements 11R 11G, an 11B, each for displaying one component of a primary color, a red EL light source 10R, a green EL light source 10G and a blue EL light source 10B for emitting red color light, green color light, and blue color light are disposed, respectively. Each EL light source includes an organic EL element in which an organic thin film emits light. Each EL light source has a structure in which an organic luminescent layer 14 is sandwiched between an ITO electrode 13 and a metal electrode 15 which have striped patterns which are orthogonal to each other, and sections (luminescent sections) at which the striped patterns of the ITO electrode 13 and the metal electrode 15 intersect with each other emit light. The luminescent sections are arrayed two-dimensionally on a glass substrate 12 and illuminate the entire display area of the liquid crystal display element.

公开(公告)号：AT322143T

公开(公告)日：2006-04-15

申请号：AT99940617

申请日：1999-09-01

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  SHIMODA TATSUYA ,  TAGA YASUNORI ,  TOKITO SHIZUO ,  NODA KOJI

IPC: G02F1/13357 ,  H01L27/32 ,  H04N5/74 ,  H04N9/31 ,  H05B44/00 ,  H05B33/12 ,  H05B33/08 ,  H05B33/14 ,  G02F1/1335 ,  G02F1/133 ,  G09F9/00 ,  G09G3/34

Abstract: At the rear of liquid crystal display elements 11R 11G, an 11B, each for displaying one component of a primary color, a red EL light source 10R, a green EL light source 10G and a blue EL light source 10B for emitting red color light, green color light, and blue color light are disposed, respectively. Each EL light source includes an organic EL element in which an organic thin film emits light. Each EL light source has a structure in which an organic luminescent layer 14 is sandwiched between an ITO electrode 13 and a metal electrode 15 which have striped patterns which are orthogonal to each other, and sections (luminescent sections) at which the striped patterns of the ITO electrode 13 and the metal electrode 15 intersect with each other emit light. The luminescent sections are arrayed two-dimensionally on a glass substrate 12 and illuminate the entire display area of the liquid crystal display element.

公开(公告)号：DE69729519D1

公开(公告)日：2004-07-22

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.

公开(公告)号：DE69724411D1

公开(公告)日：2003-10-02

申请号：DE69724411

申请日：1997-09-24

Applicant: SEIKO EPSON CORP

Inventor： FUNAMOTO TATSUAKI ,  YOKOYAMA OSAMU ,  MIYASHITA SATORU ,  KUBOTA KANEMITSU

IPC: F21V8/00 ,  F21Y101/00 ,  G02B6/00 ,  G02B6/42 ,  G02F1/13357

Abstract: A liquid crystal display device, comprising a liquid crystal display (2001) including a reflector (2002); and an illumination device arranged at the front side of the liquid crystal display (2001), the illumination device comprising a light-guide (11) plate with transparency having a first face on which an optical extraction structure is formed and a second face being opposite to the first face; and a light source (2) arranged so as to introduce light in the light-guide (11) wherein the second face is adapted to face the liquid crystal display (2001).