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101. 发明专利

JPH1096883A LIQUID CRYSTAL PANEL AND OPTICAL DEVICE USING IT 失效
公开(公告)号：JPH1096883A
公开(公告)日：1998-04-14
申请号：JP24807396
申请日：1996-09-19
申请人： SEIKO EPSON CORP
发明人： CHINO EIJI , SHINBA HIROAKI , KOBAYASHI HIDEKAZU , JINGU KEIJI , SONEHARA TOMIO , IKUKAWA SHIYUUJI
IPC分类号： G03B13/02 , G02F1/13 , G02F1/1333 , G03B17/20
摘要： PROBLEM TO BE SOLVED: To facilitate focusing by properly varying a voltage for applying to a transparent electrode divided into plural strips, changing the condition of a liquid crystal layer, and thereby confirming the image of a subject in superb visibility even under such photographing conditions as the subject is bright or the background is glaring. SOLUTION: A liquid crystal panel P is such that a polymer-dispersed liquid crystal, constituted of a mixture with a high polymer substance and liquid crystal dispersed, is sealed in between a pair of transparent glass plates. A transparent common electrode consisting of ITO and the like formed by a vapor deposition method for example is provided inside the two sheets of the transparent glass plates, as are plurally divided segment electrodes 13a, 13a,.... If no voltage is applied between the common electrode and the segment electrode, 13a, 13a, it passes into a transparent state having for example a light transmissivity of 70%; with an AC voltage applied, the direction of the liquid crystal changes only in the area where the common electrode and the segment electrode 13a, 13a are facing with each other, and it turns to a light scattering state, with a contrast of about 15:1 provided.

102. 发明专利

JPH1068925A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH1068925A
公开(公告)日：1998-03-10
申请号：JP16015697
申请日：1997-06-17
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO
IPC分类号： G03B33/12 , G02F1/13 , G02F1/1335 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a projection type display device which is compact and has a quick response to correspond to display a moving picture, permitting to display in color with a high contrast without influence by unnecessary reflection. SOLUTION: This display device comprises a light source 106, three reflection type light bulbs 501, dichroic mirrors 302, 403 which separate the light from the light source into three color light and also synthesize a picture formed by the three reflection type light bulbs 501, and a picture-forming lens forming a picture synthesized by the dichroic mirrors 302, 403. The reflection type light bulbs 501 are arranged at a position where a center axis 107 of a luminous flux reflected by them is deflected from an optical axis 103 of the picture- forming lens 101 and is also shifted in parallel from a position where it coincides with the optical axis 103. Thus, this arrangement allows this device to display in color with a high contrast and also to be reduced in a total physical size.

103. 发明专利

JPH1062760A LIQUID CRYSTAL PANEL 失效
公开(公告)号：JPH1062760A
公开(公告)日：1998-03-06
申请号：JP21765696
申请日：1996-08-19
申请人： SEIKO EPSON CORP
发明人： CHINO EIJI , SHINBA HIROAKI , KOBAYASHI HIDEKAZU , JINGU KEIJI , SONEHARA TOMIO , IKUKAWA SHIYUUJI
IPC分类号： G02F1/13 , G02F1/1333 , G03B17/20
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal panel capable of making display of various kinds of photographing information, etc., with good visibility while maintaining the inside of a finder display part of a camera, etc., bright when this panel is applied to this finder display part. SOLUTION: The liquid crystal layer of the liquid crystal panel having the liquid crystal layer held between a pair of transparent substrates 10a and 10b comprises a first liquid crystal part and second liquid crystal part varying in transmittance. For example, the first liquid crystal part (liquid crystal cell C1) is constituted by sealing high polymer dispersion type liquid crystals (PDLC) 11 dispersed with high polymers into the liquid crystal layer composed of liquid crystal molecules and the second liquid crystal part (liquid crystal cell C2) is constituted by sealing nematic liquid crystals or ferroelectric liquid crystals 12 into the liquid crystal layer. One of the substrates described above is provided with a mask region (metallic thin film layer 17 or colored resin layer 30) along the boundary K between the first liquid crystal part and the second liquid crystal part.

104. 发明专利

JPH09325337A LIQUID CRYSTAL DEVICE 失效
公开(公告)号：JPH09325337A
公开(公告)日：1997-12-16
申请号：JP2569097
申请日：1997-02-07
申请人： SEIKO EPSON CORP
发明人： SHIMOTOMAI NOBUYUKI , SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： G02B5/20 , G02F1/1335 , G02F1/13357 , G09F9/35
摘要： PROBLEM TO BE SOLVED: To improve the transmissivity of light beams, to drastically increase the brightness of a display pixel and to improve the contrast by arranging the microlens having projecting part on a pixel electrode side. SOLUTION: A base plate 11 is arranged on the light incident side and a base plate 15 is arranged on the light emitting side. Then, a microlens 13, having projecting part on a pixel electrode 17 side is arranged for every pixel. Since incident light beams 18 are converged into pixel electrodes 7 by the microlens 13 and light beam is not made substantially incident on active switching elements, wiring sections and a stripe shaped electrode region, all incident light beams are controlled on the pixel electrodes. Namely, when all white display is executed, all incident light beams pass through a transparent base plate 5. If all black display is executed, all incident light beams are controlled by the electrodes 17. Thus, no light beam leaks from other portion. Therefore, the image having a high contrast ratio without impairing brightness is obtained.

105. 发明专利

JPH09189910A COLOR DISPLAY DEVICE 失效
公开(公告)号：JPH09189910A
公开(公告)日：1997-07-22
申请号：JP28569296
申请日：1996-10-28
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO
IPC分类号： G02B5/20 , G02F1/1335 , G02F1/13357 , H01J29/89
摘要： PROBLEM TO BE SOLVED: To enhance color purity and to improve color reproducibility by forming the triangular shapes on the color coordinates of the transmitted light of three colors transmitted through color filters to the areas larger than the areas of the triangular shapes formed on the color coordinates in accordance with the transmission characteristics of the color filters. SOLUTION: A light emitting source has steep light emission spectra in the respective wavelength bands corresponding to three color elements of red, green and blue. The wavelength transmission characteristics of the color filters have such characteristics that a curve exhibiting the light transmission characteristic of the blue color filters and a curve exhibiting the light transmission characteristic of the green color filters intersect with each other and that the curve exhibiting the light transmission characteristic of the green color filters and a curve exhibiting the light transmission characteristic of the red color filters intersect with each other. The triangular shapes on the color coordinates of the transmitted light of the three colors transmitted through the color filters are formed to the areas larger than the areas of the triangular shape formed on the color coordinates in accordance with the transmission characteristics of the color filters.

106. 发明专利

JPH09185014A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH09185014A
公开(公告)日：1997-07-15
申请号：JP34357996
申请日：1996-12-24
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： G02F1/13 , G02B27/18 , G03B21/00 , H04N9/31
摘要： PROBLEM TO BE SOLVED: To provide a compact projection type color display device excellent in contrast and having the high utilization efficiency of light source light by applying subtractive reflection coating to the light incident surface of each light valve. SOLUTION: White light is emitted from a light source 7 and condensed by a condenser lens 5. The white light 8 made incident on dichroic mirrors 1 and 2 is separated to R, G and B. The separated color light, whose direction is bent by a mirror 3, is made incident on the transmission type light valve 4. The subtractive reflection coating is applied to the surface of the light valve in order to effectively transmit incident light. Thus, the reflection on the light incident surface of the light valve 4 on which strong color light is made incident in order to form a projected picture is restrained. Therefore, light loss on the incident surface of the light valve is restrained and the light made incident on the light valve is increased, so that the light from the light source is effectively utilized for the projected picture so as to make the projected picture brighter.

107. 发明专利

JPH09127502A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09127502A
公开(公告)日：1997-05-16
申请号：JP28169195
申请日：1995-10-30
申请人： SEIKO EPSON CORP
发明人： AMAKO ATSUSHI , SONEHARA TOMIO
IPC分类号： G02B5/00 , G02B5/18 , G02F1/1333 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To eliminate a scene reflected by a display area of a liquid crystal display device and to clearly communicate only displayed information to a viewer by providing a diffraction structure and a reflective member under a liquid crystal layer and constituting so that the diffraction structure doesn't come into contact with the reflective member related to a reflection liquid crystal panel without a back light. SOLUTION: The diffraction structure 107 is arranged between the liquid crystal layer 104 and the reflective member 108, and the liquid crystal layer 104 is arranged separating from the diffraction structure 107. The light incident on the liquid crystal display device from a substrate 102 of a side close to the viewer 101 passes through a high polymer diffusion liquid crystal layer 104 held between upper/lower transparent electrodes 103, 105. Then, the light is reflected by the reflective member 108 through the diffraction structure 107 formed on the substrate 106 of the side far from the viewer 101, and passes through again the diffraction structure 107 and the high polymer liquid crystal layer 104 to face to the viewer 101. Thus, the surrounding scene is paled by necessary.

108. 发明专利

JPH09120099A PROJECTION TYPE DISPLAY DEVICE 失效
公开(公告)号：JPH09120099A
公开(公告)日：1997-05-06
申请号：JP27837596
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： G02F1/13 , G02F1/1333 , G02F1/1335 , G02F1/13357 , G03B21/16
摘要： PROBLEM TO BE SOLVED: To provide a small and light-weight display device. SOLUTION: In the projection type display device having at least a light source part 20 and light valves 31 to 33 using liquid crystal panels for modulating lights from the light source part 20 arranged in a cabinet, the arranging region of the light source part 20 is placed away from the arranging region of the light valves 31 to 33 in the cabinet 10, a light source for emitting a light and a fan 34 for discharging heat from the inside of the arranging region of the light source part to the outside of the cabinet 10 are arranged in the arranging region of the light source part and a discharging part by the fan 34 is provided on an outer surface different from an outer surface on which the operation part of the projection type display device is arranged, among the outer surfaces of the cabinet 10.

109. 发明专利

JP2563892B2 失效
公开(公告)号：JP2563892B2
公开(公告)日：1996-12-18
申请号：JP6901095
申请日：1995-03-28
申请人： SEIKO EPSON CORP
发明人： SONEHARA TOMIO , ARIGA SHUJI
IPC分类号： G03B33/12 , G02B27/10 , G02F1/13 , G02F1/1335

110. 发明专利

JP2547984B2 失效
公开(公告)号：JP2547984B2
公开(公告)日：1996-10-30
申请号：JP98986
申请日：1986-01-07
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 , G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/13357 , G09F9/00

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