专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH10339880A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10339880A
公开(公告)日：1998-12-22
申请号：JP15058497
申请日：1997-06-09
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： NATORI MASATAKA , ISHIGE NOBUYUKI
IPC分类号： G02F1/1345 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To secure the uniformity of luminance of a display surface by setting lengths or widths till respective prolongingly existing end parts of respective first metallic layers so that wiring resistances of video signal lines respectively become roughly equal to prevent the delay difference of a video signal from being generated every line of the video signal lines. SOLUTION: Video signal lines 3 consist of first metallic layers extending from a pixel area side and second metallic layers extending till video signal supplying terminals. Then, lengths or widths till the extension end parts of respective first metallic layers are set so that wiring resistances of the video signal lines become roughly equal. For example, since the length of the video signal line 3 of a central part is the shortest, the the video signal line 3 constituted of a laminated film consisting of successive laminations of Cr and Al is made to extend to a shortest distance and video signal lines 3 to be successively positioned at outer sides are made to extending successively longer in accordance with their positions. Then, connections of the video signal lines 3 and respective electrodes of a semiconductor IC 7 are performed via other electrically conductive layers 20 whose resistance values are higher than that of the laminated film.

2. 发明专利

JP2001083546A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2001083546A
公开(公告)日：2001-03-30
申请号：JP30821299
申请日：1999-10-29
申请人： HITACHI LTD
发明人： MATSUNAGA KUNIYUKI , NAKAMURA KAZUYA , ITO HIKARI , NATORI MASATAKA , OUGIICHI KIMITOSHI , NAKAYAMA TAKANORI , YONENO HITOSHI , OGAWARA HIROSHI
IPC分类号： G02F1/1345 , G02F1/136 , G02F1/1362 , G02F1/1365 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To stabilize a structure including a channel layer of each thin film transistor and make the threshold voltage values uniform, by applying a prescribed voltage across a gate and a drain of a thin film transistor of each pixel for a fixed time. SOLUTION: At least one of individual gate signal lines 2 is extended up to the outside of a sealant 40, and one terminal 80A of respective terminals for stabilizing the thin film transistor is formed at the extended part. Moreover, at least one of respective drain signal lines 3 is extended outside of the sealant 40, the other terminal 80B of respective terminals for stabilizing the thin film transistor is formed adjacently to the terminal 80A at the extended part. And, it is possible to secure a uniform threshold voltage value (Vth) of each thin film transistor TFT by applying a prescribed voltage across respective terminals 80A and 80B for a fixed time after the manufacture of the thin film transistor TFT. Thus, it is possible to stabilize the structure including a channel layer.

3. 发明专利

JPH08234235A LIQUID CRYSTAL MATRIX DISPLAY DEVICE 失效
公开(公告)号：JPH08234235A
公开(公告)日：1996-09-13
申请号：JP3646995
申请日：1995-02-24
申请人： HITACHI LTD
发明人： FUJII MASACHIKA , KITAJIMA MASAAKI , SASAKI TORU , SUZUKI MASAHIKO , NATORI MASATAKA
IPC分类号： G02F1/136 , G02F1/1368 , G09F9/30 , H01L29/786
摘要： PURPOSE: To solve the image quality defect and to improve the reliability by varying the number of connecting terminals of a counter electrode driving circuit to a liquid crystal matrix panel and the number of counter voltage supply points to the counter electrodes in this liquid crystal matrix panel. CONSTITUTION: This liquid crystal matrix display device includes the liquid crystal matrix panel having plural scanning electrodes 3, signal electrodes 7 and switching elements 9, plural pixel electrodes connected to these elements 9 are the counter electrodes 11 arranged to face the pixel electrodes via liquid crystals, scanning electrode driving circuit 4, a signal electrode driving circuit 5 and the counter electrode driving circuit 61. The counter voltage is inputted via plural counter electrode connecting terminals 60 from the counter electrode driving circuit 61. The device is provided with the plural counter voltage supply points 8 exclusive of the points near signal electrodes 7. The counter voltage is inputted through counter voltage distributing lines 80, 81 to the counter voltage supply points 8 and is supplied to the counter electrodes 11. As the result, the parallel connection resistance at the counter voltage supply points is lowered and the waveform distortions of the counter voltage in the panel surface are decreased.

4. 发明专利

JPH08234231A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH08234231A
公开(公告)日：1996-09-13
申请号：JP3862295
申请日：1995-02-27
申请人： HITACHI LTD
发明人： NATORI MASATAKA
IPC分类号： G02F1/136 , G02F1/1368
摘要： PURPOSE: To increase the pixel opening rate and to improve the display quality by interposing a semiconductor film and an insulating film formed by the same stage as the stage for forming semiconductor film and gate insulating film for forming channels of TFTs between video signal line and insulated substrate. CONSTITUTION: On the transparent glass substrate, a thin-film transistor(TFT) having an inverted stagger structure in which gate electrode GL, the gate insulating film GI, the (i) type semiconductor layer AS for forming channel and source and drain electrodes SD1, SD2 are successively formed, is provided. The semiconductor layer which is formed out of the same material simultaneously with the (i) type semiconductor layer AS for forming channel broader than the video signal line DL and the insulating film formed out of the same material simultaneously with the gate insulating film GI of the TFT does not exists along the video signal line DL between the video signal line DL and the transparent glass substrate. Then, the spacing between the video signal line DL and the transparent pixel electrode ITO 1 is made narrow and, therefore, the width of the transparent pixel electrode ITO 1 is widened.

5. 发明专利

JPH10333169A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10333169A
公开(公告)日：1998-12-18
申请号：JP14768697
申请日：1997-06-05
申请人： HITACHI LTD
发明人： FURUYA MASAMITSU , NATORI MASATAKA , NAKAYAMA TAKANORI
IPC分类号： G01R31/02 , G01R27/02 , G02F1/1343
摘要： PROBLEM TO BE SOLVED: To measure the connection resistance value of an electric conductive material without being affected by the resistance of other wiring layers, etc., by providing a couple of terminals for measurement which constitute an electric path having a conductive material interposed as to an electrode connected to the conductive material and a terminal for measurement which constitutes an electric path having the conductive material interposed in addition to an external terminal connected to the conductive material. SOLUTION: As for the electrode connected to the conductive material AGP, the couple of measurement terminals (1) and (2) having the conductive material AGP interposed and the measurement terminal (3) which forms the electric path having the conductive AGP interposed in addition to the external terminal (4) connected to the conductive material AGP are provided. In this liquid crystal display device, while a certain voltage is applied to two out of those terminals (1) to (4), a current flowing between the remaining two terminals is measured. Consequently, only the connection resistance value of the conductive AGP can be calculated.

6. 发明专利

JPH0980456A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH0980456A
公开(公告)日：1997-03-28
申请号：JP23229095
申请日：1995-09-11
申请人： HITACHI LTD
发明人： NATORI MASATAKA , ITO HIKARI , SASUGA MASUMI , UEDA SHIRO
IPC分类号： G02F1/1345
摘要： PROBLEM TO BE SOLVED: To downsize an input terminal part and to make the part low resistances by providing the input terminal part in which wirings of low resistance metallic layers are formed by being partially protruded so as to be electrically connected to the pattern part of transparent conductive films being connection parts with bumps of a driving IC. SOLUTION: In the part of an input wiring Td to be connected to the output terminal of a flexible substrate, a second conductive film d2 and a third conductive film d3 are formed on the one side of the input wiring Td. Moreover, a protective film PSV1 is also formed along the second and the third conductive films d2, d3 on the one side of the input wiring Td a little larger than them. That is, in the input wiring Td, a transparent conductive film d1 is exposed with a wide arear as a part other than the protective film PSV1 exposed to the surface of the wiring and this exposed transparent conductive film d1 is made to be an inspecting terminal (a pad) and also the film d1 and the output terminal of the flexible substrate is directly connected.

7. 发明专利

JPH08286201A LIQUID CRYSTAL DISPLAY ELEMENT OF FLIP CHIP SYSTEM AND ITS PRODUCTION 失效
公开(公告)号：JPH08286201A
公开(公告)日：1996-11-01
申请号：JP9055395
申请日：1995-04-17
申请人： HITACHI LTD
发明人： NATORI MASATAKA , KUMAOKA SHUNICHI , ITO HIKARI , UEDA SHIRO
IPC分类号： G02F1/1345
摘要： PURPOSE: To improve productivity and to reduce a manufacturing cost by executing remedy against static electricity in a stage after forming of wirings of a substrate on a side to be formed with switching elements and before mounting of an IC for driving of a liquid crystal display element of a flip-chip system. CONSTITUTION: The surface of the transparent insulating substrate SUB1 at the point to be mounted with the IC for driving is provided with short circuit wirings SHc consisting of transparent conductive films. Drain terminals DTM and plural pieces of input wirings Td to the ICs for driving are connected to the short circuit wirings SHc. The short circuit wirings SHc are thereafter cut by a laser, etc., at the points of cutting lines C1, C2, C3, C4 before the IC for driving is mounted on the surface of the substrate SUB1.

8. 发明专利

JP2002107716A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2002107716A
公开(公告)日：2002-04-10
申请号：JP2000254964
申请日：2000-08-25
申请人： HITACHI LTD , HITACHI ELECTRONIC DEVICES CO
发明人： KAWADA TOMOAKI , TEZUKA AKIO , HIRAYAMA TOSHIO , MIYAWAKI TOSHITSUGU , NATORI MASATAKA
IPC分类号： G02B6/00 , F21V8/00 , F21Y103/00 , G02F1/1335 , G02F1/13357 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To improve the use efficiency of light by resolving the unevenness of luminance on a picture accompanying the frame narrowing of a liquid crystal display device. SOLUTION: A light emission control pattern THR, consisting of plural grooves the extension directions of which are inclined to a side (light incidence face) where a linear lamp LP of a light transmission plate GLB is set, is provided on the surface of a corner part of the side. The light emission control pattern THR is obtained by forming these grooves in the corner part on the light incidence face of a stamper balanced in the face by a method like cutting.

9. 发明专利

JP2000155343A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2000155343A
公开(公告)日：2000-06-06
申请号：JP37394999
申请日：1999-12-28
申请人： HITACHI LTD
发明人： OGAWARA HIROSHI , NAKAYAMA TAKANORI , TANAKA TAKESHI , ITO HIKARI , KAMEI TATSUO , KAWAMURA TETSUYA , NATORI MASATAKA , HAKODA HIDETAKA
IPC分类号： G09F9/30 , G02F1/1343 , G02F1/136 , G02F1/1362 , G02F1/1368 , G02F1/1365
摘要： PROBLEM TO BE SOLVED: To suppress occurrence of flicker. SOLUTION: This device is provided with gate signal lines GL being extended to the (x) direction and being arranged in parallel in the (y) direction on a surface of a liquid crystal side of one side of transparent substrates out of one pair of transparent substrates being arranged opposingly each other through a liquid crystal and drain signal lines DL being extended in the (y) direction and being arranged in parallel in the (x) direction, while provided with thin film transistors TFT which are turned on by a scanning signal from the gate signal line and pixel electrodes ITO1 to which a video signal from the drain signal line is applied through the thin film transistors TFT being turned on, and the thin film transistor comprises MIS, and is constituted so that capacity between the gate electrode and the source electrode SD1 is small at an input terminal side of the gate signal line GL and large at a terminal side.

10. 发明专利

JPH11258626A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH11258626A
公开(公告)日：1999-09-24
申请号：JP5787098
申请日：1998-03-10
申请人： HITACHI LTD
发明人： NATORI MASATAKA , ITO HIKARI , NAKAYAMA TAKANORI
IPC分类号： G09F9/00 , G02F1/1345 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To sufficiently perform protection from static electricity by connecting one side common signal line commonly with video signal lines arranged on every other line among the video signal lines, connecting the other side common signal line commonly with the remaining video signal lines and connecting them with other video signal lines adjacent to these remaining video signal lines through diodes. SOLUTION: The common signal line 40 connected commonly with respective scan signal lines 4 and the common signal lines 50A, 50B connected commonly with respective video signal lines 5 are formed respectively from the material same as the scan signal line 4 and the video signal line 5 and simultaneously on the outside of a cutting area of each TFT substrate. Then, the one side common signal line 50A is connected commonly with the every other video signal lines 5 among respective video signal lines 5. Further, the other side common signal line 50B is connected commonly with the remaining video signal lines 5, and is connected with other video signal lines 5 adjacent to these remaining video signal lines 5 through the diodes 14.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式