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1. 发明专利

CA2075390C LIQUID CRYSTAL LIGHT VALVE HAVING CAPABILITY OF PROVIDING HIGH-CONTRAST IMAGE 未知
公开(公告)号：CA2075390C
公开(公告)日：1998-02-24
申请号：CA2075390
申请日：1992-08-06
申请人： SHARP KK
发明人： YAMASHITA HIDEHIKO , IZUMI YOSHIHIRO , HATANO AKITSUGU , OKAZAKI TSUYOSHI
IPC分类号： G02B6/42 , G02F1/1335 , G02F1/135 , G02F1/133 , H01L31/0232
摘要： A liquid crystal light valve includes a first substrate having a transparent electrode formed thereon, a second substrate, a liquid crystal provided between the first and second substrates, and a photoconductive layer formed between the liquid crystal layer and the first substrate. The photoconductive layer is adapted to change impedance in response to an incident ray of light thereon. The light valve also includes a light waveguide for emitting light toward the photoconductive layer from the first-substrate side of the photoconductive layer.

2. 发明专利

DE69119210T2 未知
公开(公告)号：DE69119210T2
公开(公告)日：1996-10-17
申请号：DE69119210
申请日：1991-11-08
申请人： SHARP KK
发明人： KIMURA NAOFUMI , ISHII YUTAKA , YOSHIDA MASARU , MATSUURA MASATAKA , HATANO AKITSUGU , NARUTAKI YOZO , FUJIWARA SAYURI , IZUMI YOSHIHIRO , YAMAMOTO YOSHITAKA
IPC分类号： G02F1/1335 , G02F1/135 , G09G3/36 , G09G3/22
摘要： A display apparatus includes two substrates (10, 15) having electrodes, respectively, and a liquid crystal layer (17) arranged between the two substrates. One of the two substrates includes a plurality of linear luminous sources (Y1, Y2, ..., Yn) ranged in parallel each other, a plurality of linear electrodes (X1, X2, ..., Xm) ranged in parallel each other and the linear electrodes being crossed with the plurality of linear luminous sources, and a plurality of photoconductive layers (13) provided at crossed positions of the plurality of linear luminous sources and the plurality of linear electrodes, the photoconductive layers serving to perform switching operation in response to light applied from the plurality of linear luminous sources. The liquid crystal layer has pixels to be driven by a signal applied through the plurality of linear electrodes and the plurality of photoconductive layers.

3. 发明专利

CA2055123A1 DISPLAY APPARATUS 未知
公开(公告)号：CA2055123A1
公开(公告)日：1992-05-10
申请号：CA2055123
申请日：1991-11-07
申请人： SHARP KK
发明人： KIMURA NAOFUMI , ISHII YUTAKA , YOSHIDA MASARU , MATSUURA MASATAKA , HATANO AKITSUGU , NARUTAKI YOZO , FUJIWARA SAYURI , IZUMI YOSHIHIRO , YAMAMOTO YOSHITAKA
IPC分类号： G02F1/1335 , G02F1/135 , G09G3/36
摘要： A display apparatus includes two substrates (10, 15) having electrodes, respectively, and a liquid crystal layer (17) arranged between the two substrates. One of the two substrates includes a plurality of linear luminous sources (Y1, Y2, ..., Yn) ranged in parallel each other, a plurality of linear electrodes (X1, X2, ..., Xm) ranged in parallel each other and the linear electrodes being crossed with the plurality of linear luminous sources, and a plurality of photoconductive layers (13) provided at crossed positions of the plurality of linear luminous sources and the plurality of linear electrodes, the photoconductive layers serving to perform switching operation in response to light applied from the plurality of linear luminous sources. The liquid crystal layer has pixels to be driven by a signal applied through the plurality of linear electrodes and the plurality of photoconductive layers.

4. 发明专利

DE69221443D1 未知
公开(公告)号：DE69221443D1
公开(公告)日：1997-09-11
申请号：DE69221443
申请日：1992-12-08
申请人： SHARP KK
发明人： HATANO AKITSUGU , OKAZAKI TSUYOSHI , SUMIDA YUKIHIRO , NOJIMA TAKASHI , YAMASHITA HIDEHIKO
IPC分类号： G02F1/1333 , G02F1/135 , G06K7/10 , H04N1/029 , B41J2/445 , H04N1/29
摘要： A liquid crystal light valve (10) and a various information processors is provided. The processors have the liquid crystal light valve (10) in which information formed in a liquid crystal layer (22) and corresponding to address light can be read as an optical signal and can be directly read as an electric signal. A liquid crystal light valve (10) has a glass substrate (11,12), a transparent electrode (14), an opposite electrode (15), an optical waveguide (16), a photoconductive layer (17), a light interrupting layer (18), an orientational film (19,20), a spacer and a liquid crystal layer (22). The optical waveguide (16) is composed of a lower clad layer (26), a core layer (27) and a clad layer (28). A light source (30) and a photodetector (29) are connected to both ends of the optical waveguide (16). For example, the light source (30) is constructed by a laser, a light emitting diode (LED), etc. The light source (30) is connected to the optical waveguide (16) such that a polarized wave can be guided to the optical waveguide (16). For example, the photodetector (29) is constructed by an a-Si:H diode, and a-SiGe:H diode, etc. in accordance with a wavelength of the light source (30). The photodetector (29) is connected to the optical waveguide (16) so as to receive light therefrom.

5. 发明专利

DE69027158T2 未知
公开(公告)号：DE69027158T2
公开(公告)日：1996-10-24
申请号：DE69027158
申请日：1990-08-10
申请人： SHARP KK
发明人： HATANO AKITSUGU , KIMURA NAOFUMI , FUJIWARA SAYURI
IPC分类号： G02F1/135
摘要： A liquid crystal display device of optical writing type has a first transparent substrate, a first transparent electrode formed on the first transparent substrate, and a photoconductive layer (13) formed on the first transparent electrode and including hydrogenated amorphous silicon carbide (a-Si1-xCx:H). The display device also has a second transparent substrate, a second transparent electrode formed on the second transparent substrate, and a liquid crystal layer disposed between the photoconductive layer and the second transparent electrode.

6. 发明专利

DE68918192T2 未知
公开(公告)号：DE68918192T2
公开(公告)日：1995-03-16
申请号：DE68918192
申请日：1989-07-19
申请人： SHARP KK
发明人： HATANO AKITSUGU
IPC分类号： G02F1/133 , G02F1/13363 , G02F1/1347 , G02F1/139 , G02F1/137

7. 发明专利

CA2075390A1 LIQUID CRYSTAL LIGHT VALVE HAVING CAPABILITY OF PROVIDING HIGH-CONTRAST IMAGE 未知
公开(公告)号：CA2075390A1
公开(公告)日：1993-02-10
申请号：CA2075390
申请日：1992-08-06
申请人： SHARP KK
发明人： IZUMI YOSHIHIRO , OKAZAKI TSUYOSHI , YAMASHITA HIDEHIKO , HATANO AKITSUGU
IPC分类号： G02B6/42 , G02F1/1335 , G02F1/135 , G02F1/133 , H01L31/02
摘要： A liquid crystal light valve includes a first substrate having a transparent electrode formed thereon, a second substrate, a liquid crystal provided between the first and second substrates, a photoconductive layer (16) formed between the liquid crystal layer and the first substrate, the photoconductive layer being adapted to change impedance thereof in response to an incident ray of light thereto, and a light waveguide (11) for emitting light from the first substrate side to the photoconductive layer

8. 发明专利

DE69221443T2 未知
公开(公告)号：DE69221443T2
公开(公告)日：1998-02-05
申请号：DE69221443
申请日：1992-12-08
申请人： SHARP KK
发明人： HATANO AKITSUGU , OKAZAKI TSUYOSHI , SUMIDA YUKIHIRO , NOJIMA TAKASHI , YAMASHITA HIDEHIKO
IPC分类号： G02F1/1333 , G02F1/135 , G06K7/10 , H04N1/029 , B41J2/445 , H04N1/29
摘要： A liquid crystal light valve (10) and a various information processors is provided. The processors have the liquid crystal light valve (10) in which information formed in a liquid crystal layer (22) and corresponding to address light can be read as an optical signal and can be directly read as an electric signal. A liquid crystal light valve (10) has a glass substrate (11,12), a transparent electrode (14), an opposite electrode (15), an optical waveguide (16), a photoconductive layer (17), a light interrupting layer (18), an orientational film (19,20), a spacer and a liquid crystal layer (22). The optical waveguide (16) is composed of a lower clad layer (26), a core layer (27) and a clad layer (28). A light source (30) and a photodetector (29) are connected to both ends of the optical waveguide (16). For example, the light source (30) is constructed by a laser, a light emitting diode (LED), etc. The light source (30) is connected to the optical waveguide (16) such that a polarized wave can be guided to the optical waveguide (16). For example, the photodetector (29) is constructed by an a-Si:H diode, and a-SiGe:H diode, etc. in accordance with a wavelength of the light source (30). The photodetector (29) is connected to the optical waveguide (16) so as to receive light therefrom.

9. 发明专利

DE69216942T2 未知
公开(公告)号：DE69216942T2
公开(公告)日：1997-08-14
申请号：DE69216942
申请日：1992-08-07
申请人： SHARP KK
发明人： IZUMI YOSHIHIRO , OKAZAKI TSUYOSHI , YAMASHITA HIDEHIKO , HATANO AKITSUGU
IPC分类号： G02B6/42 , G02F1/1335 , G02F1/135
摘要： A liquid crystal light valve includes a first substrate having a transparent electrode formed thereon, a second substrate, a liquid crystal provided between the first and second substrates, a photoconductive layer (16) formed between the liquid crystal layer and the first substrate, the photoconductive layer being adapted to change impedance thereof in response to an incident ray of light thereto, and a light waveguide (11) for emitting light from the first substrate side to the photoconductive layer

10. 发明专利

DE69109373T2 未知
公开(公告)号：DE69109373T2
公开(公告)日：1996-01-04
申请号：DE69109373
申请日：1991-06-20
申请人： SHARP KK
发明人： HATANO AKITSUGU , KIMURA NAOFUMI
IPC分类号： G02F1/135
摘要： A liquid crystal element of optical writing type includes a pair of transparent substrates respectively having electrodes formed on the overall surfaces thereof. The liquid crystal element also includes a photoconductive layer formed on one of the transparent substrates and having a back-to-back diode structure, which impedance is to be changed depending on an amount of incident light. The liquid crystal element further includes a mirror layer for reflecting light entered from the other side of a writing side of the photoconductive layer, and a liquid crystal layer disposed between the pair of transparent substrates.

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