公开(公告)号：JP2008140646A

公开(公告)日：2008-06-19

申请号：JP2006325204

申请日：2006-12-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SHINODA MASATO

IPC: F21S2/00 ,  F21S8/04 ,  F21V7/00 ,  F21V7/22 ,  F21Y101/02 ,  G02F1/13357 ,  H01L33/00

Abstract: PROBLEM TO BE SOLVED: To provide a backlight device and a liquid crystal display with luminance and luminance evenness improved through as much reduction as possible of loss of light from LEDs with less man-hour and cost.
SOLUTION: The backlight device 10 of the liquid crystal display 100 is provided with wiring boards 22 each with a plurality of LEDs 21 mounted, and a reflecting plate 6 equipped with openings 6d for each LED 21 to penetrate and expose itself through. A diameter of each opening 6d is formed larger than that of each LED 21, so that there is a clearance 71 generated between each opening 6d and each LED 21. On the surface of each wiring board 22, white solder resist 61 containing a high light-reflecting material is coated. With this, the white solder resist 61 reflects whatever light travelling between a diffusion plate 4 and the reflecting plate 6 is incident from the LEDs 21 to the clearance 71, so that loss of light can be restrained.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种背光装置和液晶显示器，其亮度和亮度均匀度通过尽可能多地减少来自LED的光的损失而减少，同时以较少的工时和成本。 解决方案：液晶显示器100的背光装置10设置有各自安装有多个LED 21的布线板22，以及配备有用于每个LED 21穿透和暴露自身的开口6d的反射板6。 每个开口6d的直径形成为大于每个LED 21的直径，使得在每个开口6d和每个LED 21之间产生间隙71.在每个布线板22的表面上，包含高光的白色阻焊剂61 - 反射材料被涂覆。 由此，白色阻焊剂61反射漫射板4和反射板6之间行进的光从LED 21入射到间隙71，从而可以抑制光的损失。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2001092009A

公开(公告)日：2001-04-06

申请号：JP26377299

申请日：1999-09-17

Applicant: SONY CORP

Inventor： TAKATSUKA HIROSHI ,  YAMADA SUSUMU ,  ONO HIROYUKI ,  SHINODA MASATO

IPC: G03B21/14 ,  G03B21/20 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide a projector device where a light source in an enclosure is easily replaced with a new one by setting the light source and pushing up it to a normal position to position it. SOLUTION: The projector device uses light of a light source 2 stored in the enclosure 46 to project a video and is provided with a light source setting device 300 which sets the light source 2 and pushes up the light source 2 from a light source taking-in/out position 180 to the normal position 190 to position it when replacing a light source 2 in the enclosure 46 with a new one.

公开(公告)号：JP2000214430A

公开(公告)日：2000-08-04

申请号：JP1744199

申请日：1999-01-26

Applicant: SONY CORP

Inventor： SUGIHARA KENJI ,  KANAMORI SHIGE ,  SHINODA MASATO ,  KIDA KOJI

IPC: G02F1/13 ,  G02F1/1335 ,  G03B21/00

Abstract: PROBLEM TO BE SOLVED: To provide an image display device capable of enhancing the light utilization efficiency. SOLUTION: This image display device has a first optical block 1 which includes a first lens array 21 for converging the luminous flux from a light source 3 and making the distribution of luminance uniform, a polarized light conversion element 131 which has a beam splitter 131a transmitting a first polarization component and reflecting a second polarization component, a mirror 131b for making the second polarization component reflected by the beam splitter 131a nearly the same direction as the progression direction of the first polarization component and a half-wave plate 131c arranged in a section to emit the second polarization component in the mirror 131b in order to polarize the second polarization component from the mirror 131b and a second optical block 2 in which the incident surface for making the first polarization component incident at second lens cells 23a, 23b and an incident surface for making the second polarization component incident are formed on different planes and includes the second lens array 23 for converging the luminous flux emitted from the first optical block 1 and making the distribution of the luminance uniform.

公开(公告)号：JPH11287908A

公开(公告)日：1999-10-19

申请号：JP8979798

申请日：1998-04-02

Applicant: SONY CORP

Inventor： SHINODA MASATO ,  IWAKI TAKAAKI ,  KAWAI TORU ,  IWAMURA ATSUSHI

IPC: G02B5/30 ,  G02F1/13

Abstract: PROBLEM TO BE SOLVED: To attain the miniaturization of a polarized beam splitting element consisting of a polarized light converting unit and to provide satisfactory polarized beam splitting characteristics by providing the polarized beam splitting element with a laminate part mutually laminating a film layer composed of a high refractive index material and a film layer composed of a low refractive index material. SOLUTION: The polarized light converting unit is provided with a plate- shaped polarized beam splitting element 1. Concerning the polarized beam splitting element 1, a laminate part 4 alternately laminating a high refraction layer 2 composed of the high refractive index material and a low refraction layer 3 composed of the low refractive index material is constituted on the surface of a transparent substrate 5. The laminate part 4 is provided for letting appear the transmission and reflection characteristics of prescribed light by utilizing the interference effect of light by alternately laminating the low refractive index and high refractive index materials. For the low refractive index material, SiO2 or ZrO2 is used and for the high refractive index material, TiO2 or NbO2 is used.

公开(公告)号：JP2001092012A

公开(公告)日：2001-04-06

申请号：JP26377199

申请日：1999-09-17

Applicant: SONY CORP

Inventor： TAKATSUKA HIROSHI ,  YAMADA SUSUMU ,  ONO HIROYUKI ,  SHINODA MASATO

IPC: G09F9/00 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/16

Abstract: PROBLEM TO BE SOLVED: To provide a projector device which is made small-sized while efficiently cooling a light source part. SOLUTION: The projector device which uses light of a light source 2 stored in an enclosure 101 to project a video is provided with a fan 47 which sends air to the light source 2 in the enclosure 101, a guide duct 149 which guides the air sent from the fan 47 to the light source 2, and an exhaust duct 48 which guides the air used for cooling of the light source 2 to the outside of the enclosure 101, and an aperture part 48a through which the air in the enclosure 101 is taken in is provided on the way of the exhaust duct 48.

公开(公告)号：JP2001066552A

公开(公告)日：2001-03-16

申请号：JP24363099

申请日：1999-08-30

Applicant: SONY CORP

Inventor： SHINODA MASATO ,  KANAMORI SHIGE ,  SUGIHARA KENJI ,  KIDA KOJI

IPC: G02B5/32 ,  G02B27/28 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G03B21/00

Abstract: PROBLEM TO BE SOLVED: To provide a projection type picture display device provided with a polarized light changing means using absolute minimum polarized light separating performance. SOLUTION: This projection type display device 100 is provided with the polarized light changing means 300 changing non-polarized the light from a light source 201 to linearly polarized light. In the device 100, the light is transmitted through liquid crystal panels 214, 215 and 216 and a picture on the liquid crystal panel 214 is enlarged and formed on a screen 102 by a projection lens 218. The means 300 is provided with a polarized light separating element 301 provided with a phase type hologram 320 and separating the light made incident from the light source 201 to every polarized light component when the light is made incident from the light source 201 and emitting it in a different direction, a reflection mirror 302 for making either polarized light and the other polarized light in nearly the same direction and a polarized light rotating element 303 for changing either polarized light and the other polarized light to the same polarized component.

公开(公告)号：JP2000180614A

公开(公告)日：2000-06-30

申请号：JP35448798

申请日：1998-12-14

Applicant: SONY CORP

Inventor： SHINODA MASATO ,  TAKATSUKA HIROSHI ,  ONO HIROYUKI ,  YAMADA SUSUMU

IPC: G02B5/04 ,  G02B5/20 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  G03B33/12

Abstract: PROBLEM TO BE SOLVED: To reduce the accuracy in angle of a basic prism itself and the accuracy in adhesion, and to manufacture an optical block with the low cost by combining the light transmitting basic prisms respectively having a right angled isosceles triangular cross section, and specifying its structure. SOLUTION: An optical block 36 has a structure comprising the dichroic mirrors 48, 49 among one first basic prism 43 and two second basic prisms 44, 45. The first basic prism 43 forms a right angled isosceles triangle where a right angle is formed by both surfaces opposite to an adhesive surface, and the adhesive surface has a size equal to a size obtained by adding the adhesive surfaces of the second basic prisms 44, 45, that is, two times as large as each surface. As the optical block 36 is free from the structural problem of a so- called cross prism that the surfaces comprising the dichloic prisms 48, 49 cross two basic prisms, the accuracy in angle of the prism itself and the accuracy in adhesion are not strictly requested.

公开(公告)号：JPH11352478A

公开(公告)日：1999-12-24

申请号：JP16228998

申请日：1998-06-10

Applicant: SONY CORP

Inventor： IWAMURA ATSUSHI ,  SHINODA MASATO ,  SUGANO YASUYUKI ,  KANAMORI SHIGE

IPC: G03B33/12 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G09F9/00 ,  H04N5/74 ,  H04N9/31

Abstract: PROBLEM TO BE SOLVED: To suppress light returning to a liquid crystal panel by providing gaunter-phase difference plates at necessary positions of a prism element and a liquid crystal panel part. SOLUTION: Quarter-phase difference plates 11c, 35, 36 are arranged on the exiting side of a polarizing plate 11a in a liquid crystal panel part 11 corresponding to blue light B, one the incident plane of a blue light B on a prism element 25, and on the light-emitting surface of a color image light on the prism element 25. Moreover, a filter 37 permitting to transmit green light G is provided on a green light G incident plane of the prism element 25.

公开(公告)号：JPH11295651A

公开(公告)日：1999-10-29

申请号：JP9480498

申请日：1998-04-07

Applicant: SONY CORP

Inventor： SUGANO YASUYUKI ,  MURAKAMI KYOICHI ,  SHINODA MASATO ,  KANAMORI SHIGE

IPC: G02B5/04 ,  G02B27/18 ,  G02F1/13 ,  G09F9/00 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive, compact and easy-to-manufacture picture display. SOLUTION: A picture display 10 is constituted of a 1st prism 41 consisting of a triangle pole whose cross sections are an almost isosceles right triangle, a 2nd prism 42 which is formed almost identical to the prism 41 and to which one side of the cross section of the prism 41 forming an almost right angle and the inclined surface thereof are stuck, and a 3rd prism 43 whose cross sections are an almost right-angled triangle, which is formed smaller than the prism 41 and to which the surface of the prism 41 forming the almost right angle and the opposed surface of the cross section thereof forming the almost right angle are stuck.

公开(公告)号：JP2001318229A

公开(公告)日：2001-11-16

申请号：JP2000143414

申请日：2000-05-11

Applicant: SONY CORP

Inventor： SHINODA MASATO ,  SUGIHARA KENJI ,  KIDA KOJI

IPC: G02B5/04 ,  G02B5/30 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G09F9/00 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide a polarization converting element with polarization separating performance at a low cost by overcoming shortcomings of an expensive manufacturing cost of a prism type polarization separating element as a whole, which has superior polarization separating performance, however, necessitates many steps for working of two triangular prisms comprising the polarization separating element. SOLUTION: The polarization converting element is used for an illuminating optical system of a projection-type display device and comprises an optically anisotropic polymer film 22, having different refractive indexes between in the vertical direction and in the horizontal direction with respect to the plane of incidence, an adhesive 23 and an optical block 21.