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1. 发明专利

JP2004012543A LIQUID CRYSTAL ELEMENT AND LIQUID CRYSTAL DEVICE EQUIPPED WITH THE SAME 审中-公开
公开(公告)号：JP2004012543A
公开(公告)日：2004-01-15
申请号：JP2002162065
申请日：2002-06-03
申请人： CANON KK
发明人： ASAO YASUSHI , ISOBE RYUICHIRO
IPC分类号： G02F1/141 , G02F1/133 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To realize uniform orientation and uniform switching characteristics in a liquid crystal element taking on a monostable orientation state with stripe texture using a chiral smectic liquid crystal. SOLUTION: Orientation controlling films 13a, 13b are formed on respective substrates 11a, 11b and the chiral smectic liquid crystal 15 is arranged in a gap between the substrates. A liquid crystal exhibiting a phase transition sequence of an isotropic liquid phase-a cholesteric phase -a chiral smectic C phase or an isotropic liquid phase-a chiral smectic C phase is used for the chiral smectic liquid crystal 15. Furthermore, pretilt angles of the respective substrate sides are set to be different with each other. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2001330863A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2001330863A
公开(公告)日：2001-11-30
申请号：JP2000148830
申请日：2000-05-19
申请人： CANON KK
发明人： ISOBE RYUICHIRO , MIURA KIYOSHI , ASAO YASUSHI
IPC分类号： G02F1/137 , G02F1/133 , G02F1/1335 , G02F1/13357 , G02F1/141 , G09F9/00 , G09G3/20 , G09G3/34 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive liquid crystal display device by manufacturing the panel having such thickness that makes the manufacture of the panel more easy while maintaining the practical hue and brightness of white display. SOLUTION: In the liquid crystal display device having a liquid crystal panel 3 without a color filter and having a light source 1 which synchronizes with the panel to emit light of three primary colors, the panel has a chiral smectic liquid crystal, a pair of electrodes to apply a voltage on the liquid crystal, a pair of substrates which is subjected to uniaxial alignment treatment to align the liquid crystal and which holds the liquid crystal in between, and a polarizing plate applied on the substrate. The phase transition series of the liquid crystal includes, in ordere from a higher temperature side, an isotropic liquid phase, cholesteric phase and chiral smectic C phase, or an isotropic liquid phase and chiral smectic C phase. The light source is equipped with a luminance controlling circuit to control the luminance in the information display period of each color so that the color temperature of the white display is controlled to 4300 to 6500 K.

3. 发明专利

JP2001281668A LIQUID CRYSTAL ELEMENT 失效
公开(公告)号：JP2001281668A
公开(公告)日：2001-10-10
申请号：JP2001010975
申请日：2001-01-19
申请人： CANON KK
发明人： ASAO YASUSHI , TOGANO TAKESHI , ISOBE RYUICHIRO
IPC分类号： G02F1/141 , C09K19/02 , C09K19/34 , G02F1/133 , G02F1/1337 , G02F1/1368 , H01S3/20
摘要： PROBLEM TO BE SOLVED: To construct an active matrix driven liquid crystal element, capable of gray scale displaying by using fast responsiveness of a liquid crystal exhibiting a chiral smectic phase and improving contrast, by preventing alignments defect due to difference in level of wiring. SOLUTION: A smectic layer is formed, in such a way that the direction of the smectic layer formation forms 10 deg. or larger angle, with respect to the scanning or information signal line by imparting uniaxial orientation treatment in the direction forming 10 deg. or larger angle with respect to the scanning and information signal lines for driving switching elements on at least one out of a pair of substrates.

4. 发明专利

JP2001281631A LIQUID CRYSTAL DEVICE 失效
公开(公告)号：JP2001281631A
公开(公告)日：2001-10-10
申请号：JP2000095780
申请日：2000-03-30
申请人： CANON KK
发明人： MORI YOSHIMASA , ASAO YASUSHI , MORIYAMA TAKASHI , TOGANO TAKESHI , ISOBE RYUICHIRO , TERADA MASAHIRO
IPC分类号： G02F1/1337 , G02F1/133 , G09G3/20 , G09G3/36
摘要： PROBLEM TO BE SOLVED: To prevent the inhomogeneous state of aligned state of a liquid crystal. SOLUTION: A chiral smectic liquid crystal 2 is used and alignment control films 6a, 6b are disposed in the liquid crystal panel P1. An arithmetic average roughness Ra of the alignment control films 6a, 6b is controlled to satisfy Ra

5. 发明专利

JP2001272679A LIQUID CRYSTAL DEVICE 失效
公开(公告)号：JP2001272679A
公开(公告)日：2001-10-05
申请号：JP2000084189
申请日：2000-03-24
申请人： CANON KK
发明人： NOGUCHI KOJI , ISOBE RYUICHIRO , MUNAKATA HIROHIDE
IPC分类号： G02F1/137 , G02F1/1335 , G02F1/13363 , G02F1/1337 , G02F1/1347
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal device having good display characteristics. SOLUTION: The liquid crystal device displaying a black color by using phase compensation has a phase compensation plate (A) produced by using a liquid crystal composition having the same temperature characteristics of birefringent refractive index n as those of a liquid crystal shutter (B). The alignment direction of the phase compensation plate (A) and the uniaxial alignment direction of the liquid crystal shutter (B) are arranged perpendicular to each other, and the uniaxial alignment of the liquid crystal shutter (B) is either parallel or antiparallel between the upper and lower substrates. The retardation R (V) of the liquid crystal shutter (B) at the voltage to display the black color and the retardation of the phase compensation plate (A) having the perpendicular alignment direction to the shutter (B) satisfy a specified condition.

6. 发明专利

JP2001125084A LIQUID CRYSTAL ELEMENT 失效
公开(公告)号：JP2001125084A
公开(公告)日：2001-05-11
申请号：JP30310199
申请日：1999-10-25
申请人： CANON KK
发明人： ISOBE RYUICHIRO , NOGUCHI KOJI , MUNAKATA HIROHIDE , MIURA KIYOSHI
IPC分类号： G02F1/1333 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To reduce the mutual effect of electric fields on pixels adjacent to each other. SOLUTION: An insulating member 4 having a thickness greater than that of an electrode 2b and a dielectric constant lower than that of a liquid crystal 3 is provided between the electrodes 2b and 2b adjacent to each other. The mutual effect of the electric fields on pixels adjacent to each other can be reduced.

7. 发明专利

JP2002116466A LIQUID CRYSTAL DEVICE 失效
公开(公告)号：JP2002116466A
公开(公告)日：2002-04-19
申请号：JP2000308217
申请日：2000-10-06
申请人： CANON KK
发明人： ISOBE RYUICHIRO , NOGUCHI KOJI , MUNAKATA HIROHIDE , ASAO YASUSHI , TOGANO TAKESHI
IPC分类号： G02B5/30 , C09K19/02 , G02F1/13363 , G02F1/137 , G02F1/141 , G09F9/35
摘要： PROBLEM TO BE SOLVED: To prevent degradation in color reproducibility in a color display liquid crystal panel. SOLUTION: When no electric field is applied on a liquid crystal panel 2, the average molecular axis of the liquid crystal 21 is in the direction denoted as 21a shown in Figure. The light irradiating a polarizer 4 is converted into linearly polarized light as propagating through the polarizer 4, then rotated into the direction denoted as 21c as propagating through the liquid crystal panel 2, and further rotated into the direction denoted as 3b as propagating through a uniaxial phase compensation member 3. The light passes a polarizer 5 to produce a white display state. On the other hand, when an electric field is applied on the liquid crystal panel 2 to align the average molecular axis of the liquid crystal into the position denoted as 21b, the light is rotated into the same direction as the sign 4a as propagating the liquid crystal panel 2 and the uniaxial phase compensation member 3. The light can not pass the polarizer 5, which produces a black display state. By driving the device as above described, degradation in the color reproducibility is prevented.

8. 发明专利

JP2002116422A METHOD OF MANUFACTURING LIQUID CRYSTAL ELEMENT AND METHOD OF DRIVING THE ELEMENT 审中-公开
公开(公告)号：JP2002116422A
公开(公告)日：2002-04-19
申请号：JP2001232490
申请日：2001-07-31
申请人： CANON KK
发明人： ASAO YASUSHI , MUNAKATA HIROHIDE , TOGANO TAKESHI , MORI HIDEO , NOGUCHI KOJI , ISOBE RYUICHIRO
IPC分类号： G02F1/13 , G02F1/133 , G02F1/139
摘要： PROBLEM TO BE SOLVED: To prevent the image persistence of a displayed picture from being generated. SOLUTION: When an active matrix type liquid crystal panel having chiral smectic liquid crystal is manufactured, a voltage for aging is applied to each pixel via a TFT(thin film transistor) 4. In this case, the voltage for aging to be applied to liquid crystal is made to become much by elongating the gate-on time of the TFT 4. Since the voltage-to-transmissivity characteristic of liquid crystal becomes stable by the voltage for aging to be applied in this manner and the characteristic is never changed when a picture is displayed, the image persistence of the displayed picture based on the change of the characteristic is prevented from being generated.

9. 发明专利

JP2001209076A LIQUID CRYSTAL DEVICE AND METHOD OF MANUFACTURING THE SAME 失效
公开(公告)号：JP2001209076A
公开(公告)日：2001-08-03
申请号：JP2000019238
申请日：2000-01-27
申请人： CANON KK
发明人： ASAO YASUSHI , HANIYU YUKIO , MUNAKATA HIROHIDE , ISOBE RYUICHIRO , TOGANO TAKESHI
IPC分类号： G02F1/137 , G02F1/141
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal device with a uniform alignment state without alignment defects. SOLUTION: The liquid crystal device consists of a chiral smectic liquid crystal, a pair of electrodes, a pair of substrates having been subjected to uniaxial alignment treatment, and a polarizing plate disposed on at least one substrate. The phase transition series of the chiral smectic liquid crystal shows, from the high temperature side, an isotropic liquid crystal phase (Iso.), a cholesteric phase (Ch), and a chiral smectic C phase (SmC*). The uniaxial alignment treatment applied on both substrates is in an antiparallel direction. The liquid crystal molecules on at least one substrate just below the phase transition of the isotropic liquid phase (Iso.) to the cholesteric phase (Ch) show >=10 deg. pretilt angle. An AC voltage is applied to the device at least in the temperature range where the liquid crystal shows the cholesteric phase (Ch).

10. 发明专利

JP2012109214A DISPLAY 审中-公开
公开(公告)号：JP2012109214A
公开(公告)日：2012-06-07
申请号：JP2011187168
申请日：2011-08-30
申请人： CANON KK
发明人： MATSUDA YOJIRO , ISOBE RYUICHIRO , HASEGAWA TOSHINORI
IPC分类号： H05B33/02 , H01L51/50 , H05B33/12
摘要： PROBLEM TO BE SOLVED: To obtain a display capable of suppressing chromaticity deviation of white color based on a configuration readily manufactured.SOLUTION: On a pixel unit constituted of a plurality of pixels 1 having different luminous colors, lenses 30R, 30G and 30B are provided so that differences between currents supplied to organic EL elements for the individual luminous colors of the pixels 1 during displaying white color with desired brightness are small.

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