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101. 发明专利

JPH01304652A HIGH LUMINANCE LIGHT SOURCE 失效
公开(公告)号：JPH01304652A
公开(公告)日：1989-12-08
申请号：JP13320888
申请日：1988-05-31
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI
IPC分类号： H01J61/30
摘要： PURPOSE:To obtain high luminance and to improve the mounting density by forming a flat discharge path of grow discharge, and providing a light transmission aperture. CONSTITUTION:This device is composed of glass plates 1, 2 arranged with narrow thick width in opposition, side plates 3, 4 closely fitted to both side ends between the glasses 1, 2, light transmission aperture closely fitted to one end face of glass plate, back plate 6 closely fitted to the other end face of glass plate. The space sealed by the plate members 1-6 forms a flat discharge path for glow discharge. The light discharged from the aperture 5 is long in its depth in the end face direction with respect to the length in the thickness direction between the plates 1, 2, so there are many gas molecule number illuminous in the depth direction seeing from the aperture 5, and high luminance is thus obtained.

102. 发明专利

JPH01291940A RECORDER 失效
公开(公告)号：JPH01291940A
公开(公告)日：1989-11-24
申请号：JP12361588
申请日：1988-05-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , MASUMORI TADAAKI
IPC分类号： B41J2/52 , B41J2/525 , B41J3/00 , G02F1/13 , H04N1/036
摘要： PURPOSE:To have good positional precision of a pixel to enable a quantity of light of each pixel to be controlled in extremely good precision and further, to make even a photosensitive material of low sensitivity have suitability, by a method wherein a two-dimensional recording head of a recorder is composed of a simple matrix driving type liquid crystal cell. CONSTITUTION:A part of light emitted from a light source 11 goes to an optical sensor 12. Another part is collimated with a lens 13. After passing through a color filter 14, it becomes diffused light with a diffusion board 18 and reaches a two-dimensional recording head 10. Transmission of light is controlled according to image information with the two-dimensional recording head 10. The light is projected onto a photosensitive material 16 which is a recording medium held on a holding means 19 with a lens 15, and the photosensitive material 16 is exposed according to the image information. Then, a quantity of emission of the light source 11 is detected with the optical sensor 11, and a light exposure control circuit 17 capable of putting out lights at a time of reaching a required set light exposure is provided. The two-dimensional recording head 10 is especially preferably a simple matrix driving type liquid crystal cell. A rate by which an area of a cell window occupies in total area increases, and the two-dimensional recording head having a large aperture rate can be prepared.

103. 发明专利

JPS63147642A MEDIUM CONTRAST RECORDING SYSTEM 失效
公开(公告)号：JPS63147642A
公开(公告)日：1988-06-20
申请号：JP29467486
申请日：1986-12-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SHIWA SHINICHI , SUGIHARA SHIGEO
IPC分类号： B41J2/52 , H04N1/23
摘要： PURPOSE:To obtain a high gradation medium contrast without lowering resolving power, by using a unit picture element composed of a combination of a large picture element and a small picture element, and modulating the density of each of the picture elements. CONSTITUTION:In a system wherein an electric signal is converted to a light signal or a heat signal to form an image on a recording medium and medium contrast is recorded using the recording head used in an optical printer, a unit picture element composed of a combination consisting of a large picture element 10 and a small picture element 11 is used to modulate the density of each of the picture elements. When a recording head 1 of an liquid crystal array system is taken as an example, metal interconnections 4, 5, 6, 7 are applied to an upper plate 2 and a lower plate 3 and, at the same time, large windows 8 and small windows 9 are provided, for example, at every four per 1mm in a zigzag pattern. A high gradation medium contrast is obtained without lowering resolving power and the lowering in a recording speed is also reduced.

104. 发明专利

JPS6337318A LIQUID CRYSTAL CELL AND ITS DRIVING METHOD 失效
公开(公告)号：JPS6337318A
公开(公告)日：1988-02-18
申请号：JP18001286
申请日：1986-08-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SHIWA SHINICHI , SUGIHARA SHIGEO
IPC分类号： G02F1/133
摘要： PURPOSE:To control an optical transmission or an optical reflection of an intermediate state at a high speed and stably, by inserting and holding a ferroelectric liquid crystal between one plate which has provided two pieces of electrodes on both sides of a transparent electrode, and the other plate having at least one piece of electrode of the transparent electrode. CONSTITUTION:A fundamental cell 1 is constituted of one transparent plate (upper plate) 2, the other transparent plate (lower plate) 3, a spacer 4, an electrode 5 and 6 of the upper plate 2, an electrode 7 and 8 of the lower plate 3, and a transparent electrode 9 and 10 being main electrodes. In this state, one the upper plate 2 and under the lower plate 3, a polarizing plate is necessary, respectively. The fundamental cell 1 is formed by allowing these upper plate 2, spacer 4 and lower plate 3 to adhere closely to each other, and enclosing a ferroelectric liquid crystal between the upper plate 2 and the lower plate 3 generated by the spacer 4. In this state, a signal voltage is inputted to the electrode 5 and 6, and the electrode 7 and 8 of the lower plate 3 are grounded. In this case, the electrode 7 and 8 are provided in order to reduce a ground resistance, and both of them are not always necessary.

105. 发明专利

JPS6319629A ELECTROPHORETIC DISPLAY DEVICE 失效
公开(公告)号：JPS6319629A
公开(公告)日：1988-01-27
申请号：JP16382386
申请日：1986-07-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SHIWA SHINICHI , YOSHIZAWA TETSUO , HOSHINO HIROYUKI
IPC分类号： G02F1/167 , G02F1/19
摘要： PURPOSE:To prolong the service life by holding a solvent soln. for dispersion between a plate-shaped insulating member and a film-shaped insulating member and by hermetically sealing the side on which the film-shaped insulating member is present with a shielding vessel impermeable to the solvent in the solvent soln. CONSTITUTION:A medium 11 is held between an insulating member 1 of glass provided with an electrically conductive transparent layer 2 and an insulating member 3 and the side on which the member 3 is present is covered with a shielding vessel 12. The member 3 is made of an opaque material such as a metal and the whole or a part of the vessel 12 is transparent. The transparent part of the vessel 12 may be made of glass or plastics but is preferably made of glass because resistance to a solvent for diffusion is required. A film of polyester, PVC, cellulose acetate or the like may be used as the member 3. The opaque part of the vessel 12 is made of a metal such as Al, Fe, stainless steel or Cu or a material impermeable to vapor of the solvent for diffusion.

106. 发明专利

JPS638635A DRIVING METHOD FOR LIQUID CRYSTAL CELL 失效
公开(公告)号：JPS638635A
公开(公告)日：1988-01-14
申请号：JP15163586
申请日：1986-06-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SUGIHARA SHIGEO , SHIWA SHINICHI
IPC分类号： G02F1/133 , G02F1/139 , G09G3/18
摘要： PURPOSE:To rapidly switch between stopping operation and an untransmitting state of light and to drop the driving voltage of high frequency based on the voltage control of low frequency by using liquid crystal inverting dielectric anisotropy in accordance with frequency, steadily impressing a high frequency voltage and executing the stopping operation at a high frequency voltage. CONSTITUTION:Since a power source 14 generates an output, but a power supply 15 outputs OV, a light transmitting window is closed. On the other hand, the power source 15 outputs high frequency and its peak is higher than that of the power source 14, so that the stopping operation indicated by the state of the light transmitting window is executed. In this case, a part generating a voltage difference with high frequency between main electrodes 9, 10 in the light transmitting window based on the low frequency voltage of the power source 14 is turned to a light transmitting state and a part having a small voltage difference or no voltage difference is turned to the non-transmitting state to form a stopped state. The stopping operation is rapidly executed. When the power source 14 continues the output and the output of the power source 15 is turned to '0', the light transmitting window is rapidly closed.

107. 发明专利

JPS6231827A LIQUID CRYSTAL ARRAY AND DRIVING METHOD 失效
公开(公告)号：JPS6231827A
公开(公告)日：1987-02-10
申请号：JP17104385
申请日：1985-08-05
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SUGIHARA SHIGEO , SHIWA SHINICHI
IPC分类号： G02F1/1343 , G02F1/133 , G09F9/30 , G09F9/35 , G09G3/36
摘要： PURPOSE:To decrease the driving circuit of a cell array to execute clear half tone recording and high density binary recording by forming the cell for binary recording on a plate to constitute the cell for the half tone and impressing the voltage of the necessary assembling waveform to respective electrode terminals. CONSTITUTION:A liquid crystal cell 1 for the half tone is constituted by sandwiching the liquid crystal between a plate 2 having electrodes 5 and 6 at both sides of a main electrode 9 and a plate 3 having an electrode 7 or 8 at least on one side of a main electrode 10. Two mutually electrically independent transparent electrodes connected electrically to the electrodes 5 and 6 of the cell 1 are provided, two electrically independent transparent electrodes are provided on the plate 3 opposite to this, the liquid crystal is sandwiched between plates 2 and 3, the liquid crystal cell for the binary recording is constituted, to respective electrode terminals of these cells, the voltage of the necessary assembled waveform is impressed and the necessary pattern is formed. Thus, the number of pieces of the driving circuit is decreased and both the clear half tone recording and the high density binary recording can be executed.

108. 发明专利

JPS61254933A LIQUID CRYSTAL CELL AND DRIVING METHOD THEREFOR 失效
公开(公告)号：JPS61254933A
公开(公告)日：1986-11-12
申请号：JP9552785
申请日：1985-05-07
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SUGIHARA SHIGEO , SHIWA SHINICHI , SONEHARA NOBORU
IPC分类号： G02F1/1343 , G02F1/133
摘要： PURPOSE:To permit the optional formation of a light transmittable part and non- transmittable part by controlling the voltage to be impressed to the electrodes at the respective two terminals of an upper plate juxtaposed with belt-like transparent electrodes and a lower plate having a transparent electrode facing the same. CONSTITUTION:A liquid crystal is sealed by the transparent upper and lower plates 2, 3 and three lines of the belt-like transparent electrodes 10 are provided to the plate 2. The transparent electrode 9 is provided to the lower plate 3. The electrodes 5-8 at both terminals thereof are connected to variable power sources 25, 26. An optically rotatory state part 22, an optically non-rotatory state part 23 having no light transmission and a transition part 24 are generated according to the magnitude of the voltage when the signal voltage above the response frequency of the liquid crystal is impressed to the electrodes. The optically rotatory part 22 moves continuously toward the right when the voltage increasing from zero to positive is impressed to a terminal X1 and the voltage decreasing from zero to negative to a terminal Y1. The length of the state parts 22, 23 is adjusted by controlling the voltage difference between the terminals X, Y. The optional formation of the light transmittable part and non-transmittable part is thus made possible by controlling the impressed voltage in the above-mentioned manner.

109. 发明专利

JPS61238023A DRIVING METHOD FOR LIQUID CRYSTAL CELL 失效
公开(公告)号：JPS61238023A
公开(公告)日：1986-10-23
申请号：JP7828785
申请日：1985-04-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SHIWA SHINICHI , SUGIHARA SHIGEO
IPC分类号： G02F1/133 , G09G3/18
摘要： PURPOSE:To obtain a rotary polarization state part having necessary size and shape by sandwiching liquid crystal between two plates which each have two electrodes on both sides of a main electrode, and combining the polarities of voltages applied to the respective electrodes of the plates and applying them repeatedly and periodically. CONSTITUTION:A top plate 2 which has electrodes 5 and 6 and a bottom plate 3 which has electrodes 7 and 8 are bought into contact across a spacer 4 and nematic liquid crystal is charged. Then, polarizing plates are arranged on and under the cell so hat planes of polarizations cross each other, for example, at right angles. A signal voltage S is applied to the electrode 6, the electrodes 5 and 8 are grounded, and the electrode 7 is grounded or placed in a floating state. A transparent part 41 (rotary polarization), an opaque part 42 (rotary nonpolarization), a translucent part 42 (transition) appear appear between end surfaces B and A of the electrodes 5 and 6 as the voltage S rises. The respective electrodes are applied with the voltages having the specific polarities repeatedly at a necessary period and then the area of the transparent and opaque parts in the same cell is varied stepwise optionally according to a voltage applied externally.

110. 发明专利

JPS61231524A AREA MODULATION TYPE LIQUID CRYSTAL CELL DEVICE 失效
公开(公告)号：JPS61231524A
公开(公告)日：1986-10-15
申请号：JP7110885
申请日：1985-04-05
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBA YUJI , SHIWA SHINICHI , SUGIHARA SHIGEO
IPC分类号： G02F1/133 , G02F1/1347
摘要： PURPOSE:To vary the light transmission part and light non-transmission part in the same cell in area optical by stages with an external voltage by connecting the high voltage side of a signal voltage to one electrode and the low voltage side to the other electrode, and applying an intermediate voltage between the low and high voltage to the electrode of the other plate. CONSTITUTION:An electrode 5 is grounded, an electrode 6 is connected to a power source 11, and an electrode 8 is applied with a voltage divided by resistors 12 and 13. The divided voltage is applied by a power source which is provided separately. When the resistors 12 and 13 are equal in resistance, a rotary non-polarization state part 42 is formed at upper and lower parts and a rotary polarization state 41 is formed at an intermediate part. The width of the rotary polarization state part 41 is narrowed down by raising the voltage of the power source 11. When the resistance values of the resistors 12 and 13 are varied, on the other hand, the rotary polarization state part 41 can be moved up and down.

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