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51. 发明专利

JP2004280127A Head mounted type display device 审中-公开
公开(公告)号：JP2004280127A
公开(公告)日：2004-10-07
申请号：JP2004157815
申请日：2004-05-27
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KARASAWA JIYOUJI , KAMAKURA HIROSHI , UCHIYAMA SHOICHI , SAKAGUCHI MASASHI , SHINDO HIROYUKI
IPC分类号： G02F1/13 , G02B27/02 , G02F1/15 , H04N5/64
摘要： PROBLEM TO BE SOLVED: To obtain a head mounted type display device having high visibility and causing little fatigue, which realizes an ideal PC monitor.
SOLUTION: A virtual image forming optical system is arranged before either of user 2's left eye and right eye. Then, a partial transmission type light shielding plate 4 whose transmittance is smaller than 1 is arranged before the other eye. Furthermore, an optical axis 13 formed by the user 2's eye and a virtual image 14 is nearly aligned with the line of sight obtained when the user 2 views a horizontal direction.
COPYRIGHT: (C)2005,JPO&NCIPI

52. 发明专利

JP2001133888A TRANSMISSION TYPE SCREEN AND REAR PROJECTOR USING THE SAME 失效
公开(公告)号：JP2001133888A
公开(公告)日：2001-05-18
申请号：JP31292199
申请日：1999-11-02
申请人： SEIKO EPSON CORP
发明人： SAKAGUCHI MASASHI , KAMAKURA HIROSHI
IPC分类号： H04N5/74 , G03B21/00 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To provide a transmission type screen capable of promoting the miniaturization of an entire device, and a rear projector using the same. SOLUTION: A plurality of spherical light diffusion particles 42 diffusing and emitting image light made incident on a transmission type screen 10 are arrayed, and a sound hole 45 being a path for a sound wave is formed between the adjacent particles 42. Thus, the image light passing through the particles 42 arrayed on the screen 10 is independently diffused so that a high-contrast display picture is obtained. Besides, since a plurality of holes 45 are formed in the gaps of the particles 42, the sound wave passes through the holes 45 and sound can be outputted from the screen 10. Therefore, a speaker need not be exposed on both sides of the screen 10, the degree of freedom in the arrangement of the speaker is improved and the miniaturization of the entire device 1 is accelerated.

53. 发明专利

JP2000324103A MEETING SYSTEM AND INFORMATION STORAGE MEDIUM 失效
公开(公告)号：JP2000324103A
公开(公告)日：2000-11-24
申请号：JP12685599
申请日：1999-05-07
申请人： SEIKO EPSON CORP
发明人： KAMAKURA HIROSHI , NAGASAKA FUMIO
IPC分类号： G06F15/00 , H04L12/18 , H04N7/15
摘要： PROBLEM TO BE SOLVED: To provide a meeting system that immediately reproduces a past meeting state in response to an instruction and to provide an information storage medium. SOLUTION: The meeting system is provided with a liquid crystal projector 200 that generates meeting data on the basis of distribution data distributed from tablets 410-1 to 410-4 as a plurality of input devices via an IEEE 1394 bus 300. The liquid crystal projector 200 stores the distribution data from each of the tablets 410-1 to 410-4 to a storage section 40 and reproduces meeting data for each of the tablets 410-1 to 410-4, that is, each of meeting participants in response to a reproduction instruction by each of the meeting participants.

54. 发明专利

JPH11282381A Projection display system 失效
标题翻译：投影显示系统
公开(公告)号：JPH11282381A
公开(公告)日：1999-10-15
申请号：JP9851598
申请日：1998-03-26
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： KAMAKURA HIROSHI
IPC分类号： H04N5/74 , G09F9/00 , G09F9/40
摘要： PROBLEM TO BE SOLVED: To provide a projection display system which is capable of multiple display while reducing the fatigue of eyes. SOLUTION: This system is provided with a screen 30 for displaying multiple display data, formed in a concave shape so that the viewing distance from the position 200 of the viewing point of an imaginary user is held constant and having a display area on which the multiple display data can be displayed, and a projection display device 20 which includes a projecting part for projecting the multiple display data onto the screen 30.
摘要翻译：要解决的问题：提供能够多次显示同时减少眼睛疲劳的投影显示系统。解决方案：该系统设置有用于显示多个显示数据的屏幕30，其形成为凹形，使得来自虚拟用户的观察点的位置200的观看距离保持不变，并且具有多个显示区域可以显示显示数据，以及投影显示装置20，其包括用于将多个显示数据投影到屏幕30上的投影部。

55. 发明专利

JPH1195160A HEAD MOUNTED DISPLAY DEVICE 失效
公开(公告)号：JPH1195160A
公开(公告)日：1999-04-09
申请号：JP25552597
申请日：1997-09-19
申请人： SEIKO EPSON CORP
发明人： KARASAWA JIYOUJI , UCHIYAMA SHOICHI , KAMAKURA HIROSHI , ITO YOSHITAKA
IPC分类号： G02B27/02 , H04N5/64
摘要： PROBLEM TO BE SOLVED: To secure uninhibited feeling and safety while securing a lower visual field and to improve the visibility of picture while supressing the picture light from a lower outside field from entering into eye by providing the surface of a partial transmission and reflection means opposed to a user with a diffraction optical means and a polarizing means or a louver means. SOLUTION: The light of a picture emitted from a picture display means 1 is reflected on a plane half mirror 5 and a concave half mirror 4 in turn, transmitted through a hologram 6 partially transmitted through the mirror 5 again and made incident on the eye 7 of the user. The light of the picture coming from the outside field is partially transmitted through the mirror 4 and the mirror 5, transmitted through the hologram 6 and made incident on the eye 7 of the user. Therefore, the picture can be observed being superimposed in the front outside field. Then, specified wavelength light 9 among the light 8 made incident from the lower part of the user is reflected in a direction being deviated from the eye 7 by the diffracting action of the hologram 6 and the light 10 other than it is partially reflected, transmitted through the hologram 6 again and made incident on the eye 7.

56. 发明专利

JPH09120049A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH09120049A
公开(公告)日：1997-05-06
申请号：JP27837696
申请日：1996-10-21
申请人： SEIKO EPSON CORP
发明人： ONO TAKESHI , KAMAKURA HIROSHI , SONEHARA TOMIO , NAKAMURA JUNICHI , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G03B33/12 , G02F1/13 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To obtain a good-contrast image by setting mirrors having wavelength selective reflection characteristics different from each other so that the spectral curves of the wavelength-transmissivity characteristic of the mirror may cross each other in a specified area. SOLUTION: Blue is spectrally split by a blue reflection mirror 25 so as to illuminate a blue display panel 31 through a blue reflection mirror 28. Red is spectrally split by a red reflection mirror 26 so as to illuminate a red display panel 32. Green light illuminates a green display panel 33. A video displayed on the panel 33 reaches a projection lens 13 through green reflection mirrors 27 and 30 and the video displayed on the panel 32 reaches the projection lens 13 through a red reflection mirror 29. The wavelength selective reflection characteristic of the 2nd and the 5th mirrors 28 and 27 is made the same in substance, and the 1st, the 6th, the 2nd and the 5th mirrors 25, 30, 28 and 29 have the different wavelength selective reflection characteristics and are set so that the spectral curves of the wavelength-transmissivity characteristic of the mirror may cross each other in the area of >=50% transmissivity.

57. 发明专利

JPH08304755A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH08304755A
公开(公告)日：1996-11-22
申请号：JP18197095
申请日：1995-07-18
申请人： SEIKO EPSON CORP
发明人： KAMAKURA HIROSHI , ONO TAKESHI , SONEHARA TOMIO , NAKAMURA JUNICHI , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G02F1/13 , H04N5/74
摘要： PURPOSE: To make cooling possible without impairing the transmittance of light with a thin type by arranging a cooling panel formed by holding comb tooth-shaped spacers between transparent substrates and packing a cooling liquid into the spacings therebetween on the incident side of a light incident side polarizing plate. CONSTITUTION: This projection type display device has an optical modulation means for modulating incident light and a projection optical means for projecting the light modulated by the optical modulating means. The optical modulation means has a liquid crystal panel and a pair of the polarizing plates arranged on both sides thereof. The cooling panel formed by holding the comb tooth- shaped spacers 55 formed by screen printing and photolithographic method between a pair of the transparent substrates 50, 51 so as to constitute heat dissipation parts larger than the actual display area 56, packing liquid, such as cooling oil or ethylene glycol, into the spacings therebetween and sealing the substrates with sealing members 54, such as epoxy resin, is arranged on the incident side of the light incident side polarizing plate. The comb tooth- shaped spacers 55 are preferably formed alternately in such a manner that the convection in the cooling panel is effected by heat.

58. 发明专利

JPH0832898A HEAD MOUNT TYPE VIDEO DISPLAY DEVICE 失效
公开(公告)号：JPH0832898A
公开(公告)日：1996-02-02
申请号：JP16709794
申请日：1994-07-19
申请人： SEIKO EPSON CORP
发明人： KAMAKURA HIROSHI
IPC分类号： G02F1/13 , H04N5/64
摘要： PURPOSE:To reduce the fatigue of eyes by using both eyes to observe one image with small size and light weight so as to make the mount performance stable in the head mount type display device employing a liquid crystal display panel. CONSTITUTION:A LED 106 is a light source comprising one or plural semiconductor chips and emits a single color light or plural color lights. The lights are emitted to the rear side of a liquid crystal display panel 102. A light emission spot of the LED is provided in the vicinity of a focus of a condenser lens 103 and the light is made incident in parallel with the liquid crystal display panel. The image formed on the liquid crystal display panel is formed on a translucent screen 104 through a projection lens 101 proportional to the light transmission intensity. The formed image forms a virtual image onto a retina of human eyes through an eyepiece lens 105 whose diameter is over the width of left and right eyes.

59. 发明专利

JPH07175062A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH07175062A
公开(公告)日：1995-07-14
申请号：JP18558294
申请日：1994-08-08
申请人： SEIKO EPSON CORP
发明人： ONO TAKESHI , KAMAKURA HIROSHI , SONEHARA TOMIO , NAKAMURA JUNICHI , ARIGA SHUJI , YAJIMA FUMITAKA
IPC分类号： G03B33/12 , G02F1/13 , G02F1/1335 , G02F1/13357
摘要： PURPOSE:To provide a projection type display device which is compact and light in weight, whose display capacity is large and which executes full-color display. CONSTITUTION:A straight line connecting the centers of a blue-reflecting mirror 25 separating RG and B light, a red-reflecting mirror 26 separating R and G light and a green-reflecting mirror 27 reflecting the G light and a straight line connecting the centers of a blue-reflecting mirror 28 reflecting the B light, a red-reflecting mirror 29 synthesizing the R and the B light and a green- reflecting mirror 30 synthesizing the R, the B and the G light are set in parallel. Besides, a straight line connecting the centers of the mirrors 25 and 28, a straight line connecting the centers of the mirrors 26 and 29 and a straight line connecting the centers of the mirrors 27 and 30 are set in parallel.

60. 发明专利

JPH06265815A SPECTACLE TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH06265815A
公开(公告)日：1994-09-22
申请号：JP5099193
申请日：1993-03-11
申请人： SEIKO EPSON CORP
发明人： KAMAKURA HIROSHI
IPC分类号： G02B27/18 , G02B27/02 , G02F1/13 , G02F1/133 , G02F1/1335 , G02F1/1347
摘要： PURPOSE:To provide the spectacle type display device which is extremely small in size and lightweight as a spectacle type display device which uses at least two liquid crystal panels by improving the resolution of an image by imaging two separated color lights in the cerebrum, and making a display through a correcting circuit for aberrations without distorting the wide-view-angle image. CONSTITUTION:At least the two liquid crystal panels 701 and 702 which form images are fitted to the side part and upper and lower parts of a spectacle frame 703, and images displayed on the liquid crystal panels 701 and 702 are guided to both ocular parts by reflecting or transmitting means and formed on the corneas. This spectacle type display device images the mutually different color lights on one cornea and the other cornea, and their images are corrected by the aberration correcting circuit.

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