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61. 发明专利

JPH10268273A LIQUID CRYSTAL DISPLAY SUBSTRATE 失效
公开(公告)号：JPH10268273A
公开(公告)日：1998-10-09
申请号：JP9010997
申请日：1997-03-24
申请人： HITACHI LTD
发明人： OUGIICHI KIMITOSHI , SUZUKI MASAHIKO , KAWAMURA TETSUYA , NAKANO YASUSHI
IPC分类号： G02F1/1333
摘要： PROBLEM TO BE SOLVED: To conduct an array test even in a manufacturing process without spoiling the reliability of probe inspection by forming a common line which is connected in common to an inspection pad side for respective scanning signal lines and video signal lines through high resistances respectively. SOLUTION: The respective scanning signal lines 2 have one-end sides extended partially through external terminals 2a and connected to a common line 3, and the other-and sides connected to the pad 2d for inspection. Then the signal lines 2 connected to the inspection pad 2d are extended and connected to a common line 5 through high resistances 4. The odd-numbered video signal lines 7 have one-end sides extended through external terminals 7a and connected to a common line 8 and the other-end sides, on the other hand, are connected to an inspection pad 7d, extended as they are, and connected to a common line 10 through a high resistance 9. The even-numbered video signal lines 7 have one-end sides extended through external terminals 7a and connected to a common line 8, and the other-end sides are connected to an inspection pad 7d, extended as they are, and connected to a common line 10 through high resistance 9a.

62. 发明专利

JPH10228029A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10228029A
公开(公告)日：1998-08-25
申请号：JP3157297
申请日：1997-02-17
申请人： HITACHI LTD
发明人： OUGIICHI KIMITOSHI , SUZUKI MASAHIKO , KAWAMURA TETSUYA
IPC分类号： G02F1/1343 , G02F1/1345 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To improve the reliability of connections between the liquid crystal display panel and respective external terminals of a driving IC by forming a slit in a 1st metal layer along the side part of the external terminals of the driving IC on the side of a 2nd metal layer side. SOLUTION: On the surface of a TFT substrate 1, there is the 1st metal layer 20 where scanning signal lines are extended as they are, and a slit 20a is formed along one lengthwise side. On the top surface of this 1st metal layer 20, an ITO film 21 is formed, the 2nd metal layer 22 is formed which is connected to the 1st metal layer 20 through its contact hole 21a, and a protection film 23 is further formed covering the 2nd metal layer 22. Then the external terminals of the driving IC opposite the ITO film 21 and not opposite the 2nd metal layer 22, so it can be judged whether or not the external terminals of the driving IC are arranged at the proper positions from whether or not the side part of the external terminals of the driving IC can be observed through the slit 20a formed in the 1st metal layer 20.

63. 发明专利

JPH09230374A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY PANEL 失效
公开(公告)号：JPH09230374A
公开(公告)日：1997-09-05
申请号：JP3186696
申请日：1996-02-20
申请人： HITACHI LTD
发明人： KAWAMURA TETSUYA , SUZUKI MASAHIKO , HIKIBA MASAYUKI , YAMAGUCHI SADAKO , OWADA JUNICHI
IPC分类号： G02F1/1345 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To prevent dielectric breakdown in thin film transistors even when a black matrix is made of an insulating material. SOLUTION: This panel 1 consists of transparent substrates and a liquid crystal layer held between these. Thin film transistors are formed on the surface of the out side transparent substrate which faces the liquid crystal layer, and a black matrix 6 is formed on the surface of the other side transparent substrate facing the liquid crystal layer. A conductive film is formed along at least one side of the transparent substrate having the black matrix 6 and facing the liquid crystal layer.

64. 发明专利

JPH095779A LIQUID CRYSTAL MATRIX DISPLAY DEVICE 失效
公开(公告)号：JPH095779A
公开(公告)日：1997-01-10
申请号：JP15434395
申请日：1995-06-21
申请人： HITACHI LTD
发明人： FUJII MASACHIKA , KITAJIMA MASAAKI , SASAKI TORU , SUZUKI MASAHIKO
IPC分类号： G02F1/136 , G02F1/1362 , G02F1/1368
摘要： PURPOSE: To provide a high-quality display device by preventing the increase in the resistance value by the deterioration of electrode materials arranged in a liquid crystal matrix panel, thereby decreasing waveform distortions and decreasing the fluctuations in brightness. CONSTITUTION: Auxiliary electrodes 8 formed by using at least one kind of the electrode materials among the electrode materials constituting scanning electrodes 4 or counter electrodes 15 are disposed between the scanning electrode 4 and the counter electrodes 15. The auxiliary electrode driving voltage having the potential between scanning electrode driving voltage and counter electrode driving voltage is supplied to the auxiliary electrodes 8 from an auxiliary electrode driving circuit 7 via an auxiliary voltage supply line 17.

65. 发明专利

JP2559361B2 失效
公开(公告)号：JP2559361B2
公开(公告)日：1996-12-04
申请号：JP4476185
申请日：1985-03-08
申请人： HITACHI LTD
发明人： SUNAHARA KAZUO , SUZUKI MASAHIKO , ORITSUKI RYOJI , KUNITO HIROBUMI
IPC分类号： G09F9/30 , G02F1/1335 , G02F1/1347 , G09F9/40

66. 发明专利

JPH07244297A LIQUID CRYSTAL DISPLAY 失效
公开(公告)号：JPH07244297A
公开(公告)日：1995-09-19
申请号：JP3561394
申请日：1994-03-07
申请人： HITACHI LTD
发明人： SUZUKI MASAHIKO , ONO KIKUO , OWADA JUNICHI , ITO HIKARI , KAMEI TATSUO , MATSUNAGA KUNIYUKI
IPC分类号： G02F1/1333 , G02F1/136 , G02F1/1368 , H01L21/336 , H01L29/78 , H01L29/786
摘要： PURPOSE:To reduce the reflection of the external incident light and to improve the display quality by patterning a semiconductor or the semiconductor film and an insulating film in the shape along a video signal line between the video signal line and a first insulating substrate and arranging a backlight on the second insulating substrate side. CONSTITUTION:A backlight is arranged on the second glass substrate SUB2 side, and a first transparent glass substrate SUB1 having a thin-film transistor, a video signal line DL, etc., are set on the user side. A gate electrode, a gate insulating film, a channel forming semiconductor layer and a source.drain electrode are successively formed on the substrate SUB1. An i-type semiconductor layer AS of amorphous silicon and a gate insulating film G1 are patterned in the shape along the video signal line DL between the video signal line DL and the substrate SUB1. Accordingly, the external incidents lights 1 and 2 are absorbed by the i-type semiconductor layer AS and are not reflected or transmitted.

67. 发明专利

JPH0792489A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0792489A
公开(公告)日：1995-04-07
申请号：JP23342393
申请日：1993-09-20
申请人： HITACHI LTD
发明人： ITO HIKARI , OWADA JUNICHI , SUZUKI MASAHIKO , MATSUNAGA KUNIYUKI
IPC分类号： G02F1/1343 , G02F1/136 , G02F1/1368 , H01L21/336 , H01L29/78 , H01L29/786
摘要： PURPOSE:To reduce C/D short-circuiting since no transparent pixel electrode is present on a video signal line even if a conductive foreign body is put on the video signal line, and to improve the manufacture yield of the liquid crystal display device. CONSTITUTION:A common transparent pixel electrode ITO2 at a part vertically corresponding to the surface of the transparent glass substrate of the video signal line DL is provided with a linear opening pattern OP which is wider than the video signal line DL, and the common transparent pixel electrodes on both the sides of the opening pattern OP are connected by a bridging pattern BRG; and both the sides of the bridging pattern OP can be cut at the position of a cutting part LCL and the opening pattern OP is covered with a black matrix.

68. 发明专利

JPH06265934A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH06265934A
公开(公告)日：1994-09-22
申请号：JP5040793
申请日：1993-03-11
申请人： HITACHI LTD
发明人： SUZUKI MASAHIKO , ITO HIKARI , KAMEI TATSUO , IWAMOTO KENICHI , FURUYA MASAMITSU
IPC分类号： G02F1/1335 , G02F1/136 , G02F1/1368 , H01L21/336 , H01L29/78 , H01L29/786 , H01L29/784
摘要： PURPOSE:To enable driving with a lower voltage without decreasing a contrast by arranging level differences of the recesses of a protective film to be a shadow of a rubbing direction on the side outer than the boundary lines of openings for light shielding, etc. CONSTITUTION:The liquid crystal display device is often provided with, for example, a black matrix layer which shields the edge of pixel electrodes IT01 for increasing the contast but if the openings of the protective film OPN exist in the inner side of the black matrix layer BM, the level differences from the right side to the lower side of the recessed parts OPN of the protective film PSVI are the shadows for rubbing and an orientation defective part HAT shown by hatches arises within an effective display region. This deective part is the cause for the decrease of the contrast. The level difference parts from the right side to the lower side of the recessed parts OPN of the protective film PSV1 are shifted to the outer side than the boundaryline of the black matrix layer BM. The orientation defective part HAT is, therefore, shielded by the black matrix layer BM and, therefore, the efficiency of utilizing the voltage is improved without the degradation in display quality. such as decrease of the contrast.

69. 发明专利

JPH06175141A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH06175141A
公开(公告)日：1994-06-24
申请号：JP32794092
申请日：1992-12-08
申请人： HITACHI LTD
发明人： FURUYA MASAMITSU , SUZUKI MASAHIKO
IPC分类号： G02F1/1341
摘要： PURPOSE:To provide the liquid crystal display device which prevents the contamination to a liquid crystal material, can improve the reliability of a sealing material for sealing a liquid crystal sealing port and has high reliability. CONSTITUTION:The opening width of the liquid crystal sealing port of the liquid crystal display panel constituted by sealing the liquid crystal sealing port for introducing a liquid crystal LC between two sheets of transparent glass substrates SUB 1 and SUB 2 with a sealing material RN consisting of a curing type resin is set at >=5mm and various kinds of films PSV 1, PSV 2, BM provided on the opposite surfaces of the two substrates SUB 1, SUB 2 in the liquid crystal sealing port part are removed to widen the spacing between the two substrates SUB 1 and SUB 2 in the liquid crystal sealing port.

70. 发明专利

JPH03228030A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH03228030A
公开(公告)日：1991-10-09
申请号：JP32599690
申请日：1990-11-29
申请人： HITACHI LTD
发明人： IWATA TOSHIRO , MATSUYAMA SHIGERU , YAJIMA TAKASHI , SUZUKI MASAHIKO , AOKI AKIRA , WATANABE YOSHIKI , ISHII AKIRA
IPC分类号： G02F1/1337 , G02F1/1343 , G02F1/136 , G02F1/1368
摘要： PURPOSE:To prevent the electric power lines extending from picture element electrodes to common transparent picture element electrodes from forming a radial shape in the edge parts of the picture element electrodes by providing hole patterns in the parts of the common transparent picture element electrodes facing the edge parts on the root side in the rubbing direction of the picture element electrodes. CONSTITUTION:The common transparent picture element electrodes ITO 2 face the transparent picture element electrodes ITO 1 provided for each of the picture elements on a lower transparent glass SUB 1 side and the optical state of a liquid crystal LC changes in response with the potential difference between the respective picture element electrodes ITO 1 and the common transparent picture element electrodes ITO 2. Hole patterns HPT 1 are provided in the parts of the common transparent picture element electrodes ITO 2 facing the edge parts on the root side in the rubbing direction of the transparent picture element electrodes ITO 1. The electric lines of force extending from the transparent picture element electrodes ITO 1 to the common transparent picture element electrodes ITO 2 are, therefore, prevented from forming the radial shape in the edge parts of the transparent picture element electrodes ITO 1. The liquid crystal LC, therefore, rises in a uniform state over the entire surface of the transparent picture element electrodes ITO 1 and the generation of domains is obviated.

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