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1. 发明专利

JP2005215702A Active matrix liquid crystal display 审中-公开
标题翻译：主动矩阵液晶显示
公开(公告)号：JP2005215702A
公开(公告)日：2005-08-11
申请号：JP2005107473
申请日：2005-04-04
申请人： Toshiba Corp , Toshiba Electronic Engineering Corp , 東芝電子エンジニアリング株式会社 , 株式会社東芝
发明人： HANAZAWA YASUYUKI , YAMAMOTO KAYO , IZUKI YOSHIHARU , KITAZAWA TOMOKO , NAGAYAMA KOHEI , NAKAZATO MASAHIRO , TAKEBAYASHI KISAKO , IIZUKA TETSUYA
IPC分类号： G02F1/1368 , G09F9/30
摘要： PROBLEM TO BE SOLVED: To provide an active matrix liquid crystal display capable of obtaining satisfactory display performance with low power consumption, by improving the aperture rates of pixels. SOLUTION: This liquid crystal display is constituted to have 1st storage capacity formed between a storage capacity electrode 42 and a pixel electrode 10, and 2nd storage capacity formed between the storage capacity electrode 42 and a storage capacity line 15, by providing the storage capacity electrode 42 on the storage capacity line 15 via a semiconductor layer 32 and an insulating film 9, made of the same materials as a semiconductor layer 32 and a gate insulating film 16, constituting a thin-film transistor 8 and connecting the pixel electrode 10 to the storage capacity electrode 42, through a contact hole 18 penetrating a protective insulating film 36 and an inter-layer insulating film 9 of the thin-film transistor 8 provided on the storage capacity electrode 42. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：通过提高像素的开口率，提供能够以低功耗获得令人满意的显示性能的有源矩阵液晶显示器。解决方案：该液晶显示器被构成为具有在存储电容电极42和像素电极10之间形成的第一存储容量，以及形成在存储电容电极42和存储容量线15之间的第二存储容量，通过半导体层32和由与半导体层32和栅极绝缘膜16相同的材料制成的绝缘膜9在存储电容线15上形成存储电容电极42，构成薄膜晶体管8，并连接像素电极 10通过穿过保护绝缘膜36的接触孔18和设置在存储电容电极42上的薄膜晶体管8的层间绝缘膜9连接到存储电容电极42.版权所有：（C） 2005年，JPO＆NCIPI

2. 发明专利

JPH10268356A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10268356A
公开(公告)日：1998-10-09
申请号：JP7815097
申请日：1997-03-28
申请人： TOSHIBA CORP
发明人： TAKEBAYASHI KISAKO , KITAZAWA TOMOKO
IPC分类号： G02F1/1339 , G02F1/1333 , G02F1/1343 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To provide the liquid crystal display device which can make a display of high definition and high aperture rate and is made lowcost by reduced power consumption and improved yielding. SOLUTION: This liquid crystal display device has an auxiliary capacity electrode formed on a TFT array substrate in an island shape without having any intersection part with a signal line, contact holes 22a and 22b are formed in an insulating layer, etc., as the upper layer of the auxiliary capacity electrode, and columnar spacers 25 which are formed on a counter substrate side are stored and arranged in the contact holes. Then a counter electrode 26 formed covering the outer peripheral surface of the columnar spacer 25 and the auxiliary capacity electrode 23 on the array substrate side are electrically connected to feed electricity to the auxiliary capacity electrode 23 from the counter electrode side.

3. 发明专利

JPH10228032A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10228032A
公开(公告)日：1998-08-25
申请号：JP3174297
申请日：1997-02-17
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： NAGAYAMA KOHEI , IZUKI YOSHIHARU , KITAZAWA TOMOKO , IIZUKA TETSUYA
IPC分类号： G02F1/1335 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To improve the display quality by making a common electrode low in resistance and reducing reflected light from a light shield member, and preventing switching characteristics from decreasing and the voltage of the common electrode from varying. SOLUTION: While reflected light of a light shield film 24 is reduced by interposing an insulating film 46 between the light shield film 24 and common electrode 50 to prevent characteristics of a TFT 22 from decreasing owing to a light leak current, the coupling capacity between the light shield film 24 and common electrode 50 is increased and then the resistance value of the common electrode 50 is reduced by electrically connecting the light shield film 24 and common electrode 50 to each other at the peripheral part of a display area 'A' to prevent the potential of the common electrode 50 from varying owing to coupling with a signal line, thereby suppressing an uneven display due to crosstalk, etc.

4. 发明专利

JPH1096949A ACTIVE MATRIX LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH1096949A
公开(公告)日：1998-04-14
申请号：JP25196296
申请日：1996-09-24
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： HANAZAWA YASUYUKI , YAMAMOTO KAYO , IZUKI YOSHIHARU , KITAZAWA TOMOKO , NAGAYAMA KOHEI , NAKAZATO MASAHIRO , TAKEBAYASHI KISAKO , IIZUKA TETSUYA
IPC分类号： G02F1/136
摘要： PROBLEM TO BE SOLVED: To improve a numerical aperture of a pixel and to make possible obtaining an excellent display with low power consumption by connecting a pixel electrode to a conductive member through a contact hole penetrating through an interlayer insulation film on a storage capacity line and connecting it to a source electrode through this conductive member. SOLUTION: A transparent conductive film 38 is provided on an insulation film 16 in an area provided with the pixel electrode 10. The transparent conductive film 38 is connected electrically to the source electrode 35 of a TFT 8, and passes through the area provided with the pixel electrode 10, and is provided through the insulation film 16 on the storage capacity line 15. Further, a light transmissive interlayer insulation film 9 covering a scanning line 6, a signal line 7, the TFT 8, the storage capacity line 15 and the transparent conductive film 38, etc., is provided on the whole surface of an insulated substrate 5. The pixel electrode 10 is provided on the interlayer insulation film 9, and is connected electrically with the transparent conductive film 38 on the storage capacity line 15 through the protective insulation film 36 of the TFT 8 prolonged on the storage capacity line 15 and the contact hole 18 penetrating through the interlayer insulation film 9.

5. 发明专利

JPH09105952A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09105952A
公开(公告)日：1997-04-22
申请号：JP26301295
申请日：1995-10-11
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： KITAZAWA TOMOKO , SHIMANO TAKUYA , IIZUKA TETSUYA
IPC分类号： G02F1/1343 , G02F1/1333 , G02F1/136 , G02F1/1362 , G02F1/1368 , H01L29/786
摘要： PROBLEM TO BE SOLVED: To improve the opening rate and eventually the screen luminance of an active matrix substrate and to save the electric power required for a back light by forming pixel electrodes on insulating protective films, masking light shieldable materials and patterning and forming TFTs, scanning lines, signal lines, etc., in a self-alignment manner. SOLUTION: The active matrix substrate 22 has active regions disposed above gate electrodes 31 via gate insulating films 32, source electrodes 37 and drain electrodes 39. The TFTs 21 are formed by pattern forming the scanning lines which consist of the liquid shieldable materials, are connected to the gate electrodes 31 and supply scanning signals and the signal lines which consist of the light shieldable materials, are connected to the drain electrodes 39 and supply video signals. The transparent insulating protective films 41 for coating the TFTs 21, the scanning lines and the signal lines are disposed. The insulating protective films 41 are provided thereon with the pixel electrodes 43 which are shaped and worked in the self-alignment manner and are partly connected to the source electrodes 37 by masking all the light shieldable materials covered by the insulating protective films 41.

6. 发明专利

JPH05110100A ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH05110100A
公开(公告)日：1993-04-30
申请号：JP26433491
申请日：1991-10-14
申请人： TOSHIBA CORP
发明人： KITAZAWA TOMOKO
IPC分类号： G02F1/136 , G02F1/1368 , H01L27/12 , H01L29/78 , H01L29/786
摘要： PURPOSE:To obtain an active matrix type liquid crystal display device small in flicker and free from burning by a method wherein the overlap of a channel protective film with a drain electrode is set larger in length than the overlap of the channel protective film with a source electrode. CONSTITUTION:A liquid crystal layer 61 is pinched between a pair of electrode substrates 11 and 51 where polarizing plates 71 and 78 are arranged on their outer sides, the electrode substrate 11 is composed of a transparent glass substrate 13 and a TFT 31 installed on it, the TFT 31 is equipped with a gate electrode 32 connected to a scanning electrode, a gate insulating film 33, a semiconductor layer 36, and a channel protective film 37. A drain electrode 34 is possessed of the first overlap length LD with the channel protective film 37 through the intermediary of a connection layer 38, and a source electrode 35 is possessed of the second overlap length LS with the channel protective film 37 through the intermediary of the connection layer 38, where the second overlap length LS is shorter than the first overlap length LD. The electrode substrate 51 is composed of a transparent glass substrate 53, and a common counter electrode 55 and an orientation film 57 installed on the substrate 53, and thus an active matrix type liquid crystal display small in flicker and free from burning can be realized with a TFT of this constitution.

7. 发明专利

JPS62227102A OPTICALLY CONTROLLING METHOD OF FILM THICKNESS OF MULTILAYERED FILM 失效
公开(公告)号：JPS62227102A
公开(公告)日：1987-10-06
申请号：JP6871686
申请日：1986-03-28
申请人： TOSHIBA CORP
发明人： KITAZAWA TOMOKO , NAKANO HIROTAKA
IPC分类号： G02B5/28
摘要： PURPOSE:To obtain a multilayered dielectric film filter having high spectral characteristics with high reproducibility by controlling the optical film thickness or film thickness with high precision when the optical film thickness is different from that of a dielectric multilayered film having a refractive index close to that of a substrate which has been already prepd. from a material to have a certain optical film thickness. CONSTITUTION:In a process for controlling optical film thickness of a multilayered film consisting primarily of a multilayered dielectric film formed on a substrate and having lambda0/4 optical film thickness consisting primarily of a multilayered dielectric film comprising an alternate layer of a material having high refractive index and a material having low refractive index having a different optical film thickness from lambda0/4, the optical film thickness of the layer comprising the high refractive index material is assumed to be lambda1/4, and that of a succeeding layer is assumed to be lambda2/4 [wherein at least one of lambda1 and lambda2 is not equal to lambda0, and lambda2=alambda1(alphanot equal to 1)]. In this case, the optical film thickness lambda1/4 is controlled by detecting the limiting value of the transmittance or reflectance of the light having a wavelength corre sponding to lambda1/4 of monochromatic light, and the optical film thickness lambda2/4 is controlled by detecting the limiting value of the transmittance and reflectance of light having a wave length corresponding to n times of the 1/4 wavelength of monochromatic light having a wavelength corresponding to {(a+alpha)/n}.lambda1.

8. 发明专利

JPH10268357A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH10268357A
公开(公告)日：1998-10-09
申请号：JP7815197
申请日：1997-03-28
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： KITAZAWA TOMOKO , TAKEBAYASHI KISAKO , IIZUKA TETSUYA
IPC分类号： G02F1/1339 , G02F1/1333 , G02F1/1343 , G02F1/136 , G02F1/1368
摘要： PROBLEM TO BE SOLVED: To provide the liquid crystal display device which has a high aperture rate, reduces the power consumption of its back light, has no cell gap unevenness, and make a high-contrast-ratio display of uniform contrast. SOLUTION: The liquid crystal display device has a counter electrode 26 extended and formed at the part of a columnar spacer 25 formed on a counter substrate side which abuts against a TFT array substrate, and this extended part of the counter electrode 26 abuts against a pixel electrode 21 of the array substrate 26 across an insulating layer to form storage capacity. The 2nd storage capacity which is thus formed is added to 1st storage capacity formed of a storage capacity electrode and the pixel electrode 21 on the array substrate side, so the value of the 1st storage capacity can be reduced by decreasing the area of the storage capacity electrode.

9. 发明专利

JPH09244065A ACTIVE MATRIX LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH09244065A
公开(公告)日：1997-09-19
申请号：JP5168396
申请日：1996-03-08
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： IIZUKA TETSUYA , SHIMANO TAKUYA , KITAZAWA TOMOKO
IPC分类号： G02F1/1343 , G02F1/136 , G02F1/1368 , H01L21/336 , H01L29/786
摘要： PROBLEM TO BE SOLVED: To save energy to a back light, to simplify an active matrix substrate forming process, to reduce a manufacturing cost and to obtain high economicity by making at least a source electrode a double structure such as a transparent conductive film, etc., and making the source electrode a single structure of only the transparent conductive film in a contact hole position. SOLUTION: The source electrode and an auxiliary capacity electrode are made the double structure of the transparent conductive film 37a and a metal film 37b. Further, on the other hand, in a first contact hole 42 position connected to a pixel electrode 43 each, the metal film 37b is eliminated, and the pixel electrode is made the single structure of only the transparent conductive film 37a. Then, the opening area of the pixel electrode 43 isn't reduced even when the area of the first contact hole 42 is enlarged for obtaining sufficient connection between the source electrode or the auxiliary capacity electrode and the pixel electrode 43. Thus, the energy required for the power of the back light is saved by improvement of picture luminance.

10. 发明专利

JPH0980481A ACTIVE MATRIX SUBSTRATE AND PRODUCTION OF ACTIVE MATRIX SUBSTRATE 失效
公开(公告)号：JPH0980481A
公开(公告)日：1997-03-28
申请号：JP23502495
申请日：1995-09-13
申请人： TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： SHIMANO TAKUYA , KITAZAWA TOMOKO , HANAZAWA YASUYUKI , IIZUKA TETSUYA
IPC分类号： G02F1/136 , G02F1/1368 , H01L29/786
摘要： PROBLEM TO BE SOLVED: To lower the ratio at which amorphous silicon TFTs occupy pixel electrode regions, to improve the opening rate of pixel electrodes and to save the energy of a device by arranging the amorphous silicon TFTs and column selection lines so as to three-dimensionally superpose both on each other. SOLUTION: The column selection lines 112 and the TFTs 17 are laminated via surface protective films 110 and are so wired that at least the upper parts of the channel protective films 105 of the TFTs 17 are covered by the column selection lines 112. The column selection lines 112 are formed three-dimensionally on the amorphous silicon TFTs 17 in such a manner, by which the formation of the TFTs 17 within the pixel regions and the disturbance in the transparency of the light are prevented. The energy required for the electric power of the back light is saved by improving the opening rate of the active matrix substrate 16 and improving the screen luminance. Further, the irradiation of the TFTs 17 with the external light is prevented and the generation of light leakage current is prevented. The images having excellent light resistance and a good contrast are obtd.

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