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1. 发明专利

JP2002040475A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2002040475A
公开(公告)日：2002-02-06
申请号：JP2001178544
申请日：2001-06-13
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： FUJII TATSUHISA , KATAYAMA MITSUGI , OHIRA TOMOHIDE , FUMIKURA TATSUNORI , MADOKORO HITOMI
IPC分类号： G02F1/1345 , G09F9/30 , G09F9/35
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal device which has lead-around wires having small shading unevenness while the area use efficiency of the lead-around wires is high. SOLUTION: The liquid crystal display device has electrodes 21 to 28 which are wired in parallel on a substrate 12 holding a liquid crystal layer, terminals 31 to 38 which are led out to an end part of the substrate 12 and connected to a driving element, and lead-around wires which connect the electrodes 21 to 28 and terminals 31 to 38. The electrodes 21 to 28 and terminals 31 to 38 are different in pitch and electrically connected by the lead-around wires. Straight wires 11 to 18 are provided not in parallel to the electrodes 21 to 28 and the straight wires 11 to 18 are nearly parallel to one another.

2. 发明专利

JPH1020299A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH1020299A
公开(公告)日：1998-01-23
申请号：JP17329796
申请日：1996-07-03
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： HIRAKATA JUNICHI , FUJII TATSUHISA , FUMIKURA TATSUNORI , MADOKORO HITOMI
IPC分类号： G02F1/1335 , G02F1/13357 , G09F9/35 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To provide a bright liquid crystal display device with high efficiency for light utilization, high color purity and less power consumption. SOLUTION: This device is constituted of provided with a pair of liquid crystal substrates 3 whose oppositely arranged at least one side is provided with an electrode, a liquid crystal panel consisting of a liquid crystal layer 4 held between them, a pair of polarizing plates 1 arranged so as to hold the liquid crystal panel between them and a control means for applying a voltage according to a display image signal to the electrode. In such a case, filters 9 of complementary colors of the three primary colors of light are arranged at every pixel in the inside of the liquid crystal panel, and the control means applies an effective voltage according to the display image signal to the electrode so that a major axial direction of an elliptic polarization component of any one of the complementary colors of the three primary colors of the light caused by birefringence coincides nearly with the transmission axial direction of the polarizing plate 1 arranged on an observation side.

3. 发明专利

JPH0836172A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0836172A
公开(公告)日：1996-02-06
申请号：JP17377294
申请日：1994-07-26
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： MADOKORO HITOMI , ITO OSAMU , FUJII TATSUHISA , OHIRA TOMOHIDE , FUMIKURA TATSUNORI
IPC分类号： G02F1/1335
摘要： PURPOSE:To realize a color liquid crystal display device with low energy consumption and bright display without requiring back light and a color filter. CONSTITUTION:Two transparent glass substrates 8A and 8B provided with transparent electrodes 9A and 9B and orienting films 10A and 10B, respectively, are laminated with a specified space. A liquid crystal layer 11 having a twisted structure in the thickness direction is sealed between the substrates 8A and 8B to obtain a liquid crystal display element 12. The device consists of this liquid crystal display element 12, a polarizing plate 7 applied on the outside of the substrate 8A where light enters, a light-absorbing sheet 6 applied on the outside of the substrate 8B in the opposite side, and a phase difference plate 1 in a striped shape formed on the substrate 8B.

4. 发明专利

JPH1010537A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH1010537A
公开(公告)日：1998-01-16
申请号：JP16196496
申请日：1996-06-21
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： MADOKORO HITOMI , FUJII TATSUHISA , HIRAKATA JUNICHI , FUMIKURA TATSUNORI
IPC分类号： G02B5/20 , G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To lessen the unequal luminance and unequal display of a liquid crystal display device arising from a difference in the effective voltage impressed on a liquid crystal layer, to attain higher-speed response and to avert the degradation in a contrast ratio and the transmittance of a bright display. SOLUTION: This liquid crystal display device is constituted by holding a liquid crystal layer 6 provided with a spiral structure having continuously changing angles of inclination of liquid crystal molecules between a pair of substrates 3A and 3B which respectively have striped electrodes 4A, 4B and oriented films 3A, 3B, are provided with color filters 8 of plural colors on one thereof while the substrates are combined to a matrix form by intersecting respective transparent electrodes. The display device is supplied with voltage from the ends of the substrates. The average angles of inclination formed by the liquid crystal molecules constituting the liquid crystal layer 6 at the time of non-impression of the voltage and the boundaries of a pair of the transparent conductive films 5A, 5B are varied within at least one of the substrates and the angles of inclination are changed in the stripe direction of the transparent electrodes.

5. 发明专利

JPH08262410A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08262410A
公开(公告)日：1996-10-11
申请号：JP6227895
申请日：1995-03-22
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： MADOKORO HITOMI , FUJII TATSUHISA , OHIRA TOMOHIDE , FUMIKURA TATSUNORI
IPC分类号： G02F1/1333 , G02F1/133 , G02F1/1335 , G02F1/1343
摘要： PURPOSE: To provide a liquid crystal display device of a scattering type which is capable of making bright and high-speed response display having a high contrast ratio even in high time-sharing driving and is low in threshold voltage and excellent in stability. CONSTITUTION: This liquid crystal display device is formed by holding a liquid crystal layer 4 between transparent insulating substrates 1 and 11, disposing transparent electrodes 2, 12 and oriented films 3, 13 on the inside surfaces of these substrates 1, 11, twisting liquid crystals in a thickness direction and specifying the thickness (d) of the liquid crystal layer 4 to =360 deg.C and the viscosity of the liquid crystal material to >=25cPs. Since the twist angle of the liquid crystals is specified to >=360 deg.C, a steep electro-optical characteristic is obtd. and the higher contrast is obtd. In addition, the viscosity of the liquid crystals is low and, therefore, the high-speed response display is possible, and since additives are not used, the threshold voltage is low and the stability is excellent.

6. 发明专利

JPH08211386A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08211386A
公开(公告)日：1996-08-20
申请号：JP1895895
申请日：1995-02-07
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： FUMIKURA TATSUNORI , FUJII TATSUHISA , MADOKORO HITOMI , OHIRA TOMOHIDE
IPC分类号： G02B6/00 , G02F1/1335 , G02F1/13357
摘要： PURPOSE: To prevent an uneven display by light emitted from a back light irrespective of a simple constitution. CONSTITUTION: As for the liquid crystal display device in which a liquid crystal display substrate 4 and a light transmission plate are arranged on top of each other and for inputting light from at least one end face of the light transmission plate and outputting the light from a surface facing to the liquid crystal display substrate 4, the liquid crystal display substrate 4 incorporates a black matrix layer 15 which is formed around each pixel for the substrate, and also, the substrate 4 is formed so that the size of the opening part area equivalent to the pixel area to the black matrix layer 15 may be in inverse proportion to the intensity of light outputted from the surface of the light transmission plate and passing through the opening part.

7. 发明专利

JPH05176112A LINE SENSOR 失效
公开(公告)号：JPH05176112A
公开(公告)日：1993-07-13
申请号：JP34059791
申请日：1991-12-24
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： FUJII TATSUHISA , HASEGAWA ATSUSHI , KITAJIMA KENJI , TAKEMOTO KAYAO
IPC分类号： H04N1/028 , H04N5/335 , H04N5/341 , H04N5/365 , H04N5/369 , H04N5/372 , H04N5/374
摘要： PURPOSE:To remove influence caused by noise generated by a clock pulse for charge transfer device(CTD) to the output of an output detector by electrically connecting a light shielding film separately formed at the area part of the output detector at the outside of a semiconductor substrate. CONSTITUTION:On the main surface of a semiconductor forming respective elements, the light shielding film is formed so as not to irradiate any areas excepting for the forming areas of light receiving parts 7, 9 and 10 with light. This light shielding film is a conductor serving also as a ground and a light shielding film 90 on the forming area of the output detector and a light shielding film 91 on the area at the outside of the forming area of the output detector are mutually separated at the output dispersing layer of each CCD element. Since respective terminals Vss 4 and 3 hold the respective light shielding films at the ground of the mutually equal potential, the light shielding films are electrically connected each other at the outside of the semiconductor substrate.

8. 发明专利

JPH0563468A AMPLIFIER CIRCUIT 失效
公开(公告)号：JPH0563468A
公开(公告)日：1993-03-12
申请号：JP22398791
申请日：1991-09-04
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： FUJII TATSUHISA , HASEGAWA ATSUSHI , KITAJIMA KENJI , TAKEMOTO KAYAO
IPC分类号： H03F3/50 , H04N5/14 , H04N5/335 , H04N5/372 , H04N5/378
摘要： PURPOSE:To provide the simple amplifier circuit realizing substantial high sensitivity. CONSTITUTION:A feedback source follower MOSFETQ4 receiving a source follower output signal and feedbacking the corresponding voltage on the drain side of an amplifier source follower MOSFETQ2 receiving the voltage of a capacitor receiving a signal charge. Therefore, the drain and the source potential of the amplifier source follower MOSFETQ2 can be made constant regardless of an amplifier signal, the drain conductance in the saturation area in this amplifier MOSFETQ2 can be remarkably reduced, resulting in reducing the loss of signals. The parasitic capacity CGD between the gate and drain of the amplifier source follower MOSFETQ2 can be remarkably reduced corresponding to the gain of the feedback MOSFETQ4. Thereby reducing the dynamic gate capacity receiving the signal charge and improving the frequency characteristic.

9. 发明专利

JPH10221706A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10221706A
公开(公告)日：1998-08-21
申请号：JP2803697
申请日：1997-02-12
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： HIRAKATA JUNICHI , FUJII TATSUHISA , FUMIKURA TATSUNORI , MADOKORO HITOMI
IPC分类号： G02F1/1343 , G09F9/35
摘要： PROBLEM TO BE SOLVED: To provide a bright liquid crystal display device with less display unevenness, high availability of light and less power consumption. SOLUTION: This device is provided with at least a liquid crystal layer LC held between a pair of oppositely arranged substrates 1, 10 whose at least one side is transparent, and are formed with an electrode, a liquid crystal panel holding spacers imparting a fixed gap between the substrates 1, 10, a control means applying a voltage between the electrodes 5, 8 formed on a pair of substrates 1, 10 and changing the transmission light quantity of the liquid crystal layer LC and an LSI drive circuit generating a voltage waveform for changing the light transmission quantity of the liquid crystal layer LC, and the electrodes 5, 8 are plural electrodes arranged in stripe shape in the plane direction of the substrates 1, 10, and a planar position of a surface end part 7 of one side electrode between adjacent electrodes is made to be overlapped the planar position of the substrate surface end part 9 of the other side electrode at a prescribed interval in the normal direction of one side substrate surface of the electrode.

10. 发明专利

JPH09152595A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09152595A
公开(公告)日：1997-06-10
申请号：JP31273895
申请日：1995-11-30
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： MADOKORO HITOMI , FUJII TATSUHISA , HIRAKATA JUNICHI , FUMIKURA TATSUNORI
IPC分类号： G02F1/1335 , G02F1/133
摘要： PROBLEM TO BE SOLVED: To make a color liquid crystal display which is large in contrast ratio and superior in half-tones. SOLUTION: This device is constituted by holding a liquid crystal layer 6, which has spiral structure varying continuously in the tilt angle of liquid crystal molecules between a couple of substrates 3A and 3B having transparent electrodes 4A and 4B and orientation films 5A and 5B on their internal surfaces while color filters of plural colors are provided to one of the substrates, between both the substrates, and polarizing plates 1A and 1B are provided on the external surfaces of the substrates 3A and 3B. Then double refraction media 2A and 2B having a phase difference substantially equal to the phase difference of liquid crystal layers 6 of respective pixels of the color filters 9 while a voltage attenuating the spiral structure of the liquid crystal layers 6 is applied between the transparent electrodes are provided between one of the substrates 3A and 3B and the polarizing plates 1A and 1B; and the optical axis direction of the double refraction media is set to the angle at which the phase difference of the liquid crystal layers 6 is compensated and voltages minimizing the transmissivity of the respective pixels of the color filters 9 are made nearly equal.

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