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公开(公告)号：US12119407B2
公开(公告)日：2024-10-15
申请号：US18163045
申请日：2023-02-01
申请人： Japan Display Inc.
IPC分类号： H01L29/786 , H01L29/417
CPC分类号： H01L29/7869 , H01L29/41733
摘要： A semiconductor device includes a gate electrode on a substrate, a gate insulating film on the gate electrode, an oxide semiconductor film via the gate insulating film on the gate electrode, a source electrode and a drain electrode on the oxide semiconductor film, a protective film provided on the source electrode and the drain electrode; and a conductive layer provided on the protective film and overlapped on the oxide semiconductor layer. The protective film includes a first silicon oxide film and a first silicon nitride film. The first oxide film is in contact with the oxide semiconductor layer. The gate insulating film includes a second silicon nitride film and a second silicon oxide film. The second silicon oxide film is in contact with the oxide semiconductor layer. The oxide semiconductor layer has a first region located between the source electrode and the drain electrode in a plan view.
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公开(公告)号：US09709853B2
公开(公告)日：2017-07-18
申请号：US14480804
申请日：2014-09-09
申请人： Japan Display Inc.
IPC分类号： G02F1/1345 , G02F1/1337 , G02F1/1362 , G02F1/1333
CPC分类号： G02F1/133788 , G02F1/136209 , G02F2001/133388
摘要： To maintain good operation of a peripheral circuit using an oxide thin film transistor in a liquid crystal display panel to which photo alignment is applied, the liquid crystal display panel includes: a transparent substrate provided with an oxide thin film transistor in the periphery of a pixel portion in which pixel electrodes are arranged, to control the pixel electrodes; and an alignment film to align liquid crystal provided in the pixel portion. The alignment film is subjected to photo alignment treatment by ultraviolet irradiation. Further, an ultraviolet absorbing layer is provided so as to cover the oxide thin film transistor. For example, an alignment film is used for the ultraviolet absorbing layer to absorb the ultraviolet light for the photo aliment treatment of the alignment film, in the peripheral circuit portion for controlling the pixel electrodes, thereby preventing the threshold voltage of the oxide thin film transistor from shifting.
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3.发明授权公开(公告)号：US09588366B2
公开(公告)日：2017-03-07
申请号：US14811904
申请日：2015-07-29
申请人： Japan Display Inc.
发明人： Toshiki Kaneko , Takashi Nakamura , Masahiro Tada , Yukio Tanaka , Hiroyuki Kimura , Osamu Itou
IPC分类号： G02F1/1362 , G02F1/1333 , G02F1/1343
CPC分类号： G02F1/133345 , G02F1/134336 , G02F1/134363 , G02F1/13439 , G02F1/1362 , G02F1/136286 , G02F1/1368 , G02F2001/133397 , G02F2201/121 , G02F2201/123 , G02F2201/40 , G02F2202/42 , G09G3/3648 , G09G2300/0465 , G09G2310/08 , G09G2320/0247 , G09G2330/023
摘要： There is provided a high-definition liquid crystal display device that can prevent flicker due to a reduction in the pixel potential in a low-frequency drive of about 10 Hz to reduce power consumption. The pixel has a TFT formed of Poly-Si as a switching element. In the pixel, a capacitance insulating film is formed on a planar first electrode on which a comb-shaped second electrode is formed. When the film thickness of the insulating film is d and the dielectric constant at 10 Hz frequency is ∈, it is given that ∈d≧5×10−6 m at 10 Hz frequency. The capacitance insulating film does not have a hysteresis characteristic. The refractive index of the capacitance insulating film with respect to a light of a wavelength of 632.8 nm is 1.7 to 2.0.
摘要翻译： 提供了一种高分辨率液晶显示装置，其可以防止由于在约10Hz的低频驱动中的像素电位的降低而导致的闪烁，从而降低功耗。 该像素具有由多晶硅作为开关元件形成的TFT。 在像素中，在其上形成有梳状第二电极的平面第一电极上形成电容绝缘膜。 当绝缘膜的膜厚为d，10Hz频率下的介电常数为∈时，10Hz频率下的εd≥5×10-6m。 电容绝缘膜不具有滞后特性。 电容绝缘膜相对于632.8nm波长的光的折射率为1.7〜2.0。
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公开(公告)号：US09025103B2
公开(公告)日：2015-05-05
申请号：US14156957
申请日：2014-01-16
IPC分类号： G02F1/136 , G02F1/1333 , G02F1/1362 , G02F1/1335 , G02F1/1368 , G02F1/1343
CPC分类号： G02F1/133345 , G02F1/133305 , G02F1/133504 , G02F1/133555 , G02F1/134363 , G02F1/136213 , G02F1/136227 , G02F1/1368 , G02F2001/13685 , H01L27/124 , H01L27/1248 , H01L29/78675
摘要： A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
摘要翻译： 具有大像素保持电容的LCD装置包括相对的第一和第二基板以及它们之间的液晶。 第一基板包括视频信号线，像素电极，具有连接到视频信号线的第一电极的薄膜晶体管和连接到像素电极的第二电极，形成在第二电极上方的第一氮化硅膜，有机物 第一氮化硅膜上方的绝缘膜，有机绝缘膜上方的电容电极，以及电容电极上方和像素电极下方的第二氮化硅膜。 在第一和第二氮化硅膜中蚀刻的接触孔将第二电极和像素电极彼此连接。 保持电容由像素电极，第二氮化硅膜和电容电极形成。
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5.发明授权公开(公告)号：US08885136B2
公开(公告)日：2014-11-11
申请号：US14278795
申请日：2014-05-15
申请人： Japan Display Inc.
IPC分类号： G02F1/1339 , G02F1/1337
CPC分类号： G02F1/13394 , G02F1/133371 , G02F1/13378 , G02F1/1339 , G02F1/1341 , G02F1/1368 , G02F2001/13398 , G02F2001/13415 , G02F2201/50
摘要： A display device includes a first substrate having organic and alignment films, a second substrate adhered to the first substrate by a sealant which surrounds a pixel region, a columnar spacer formed on the second substrate defining a distance between the first substrate and the second substrate, and a recessed portion formed in the organic film of the pixel region, the recessed portion facing to the columnar spacer. The recessed portion has a convex portion at a bottom of the recessed portion, and a height of a top of the convex portion from the first substrate is lower than a height of an upper surface of the organic film from the first substrate. A thickness of an alignment film on the convex portion is smaller than a thickness of the bottom of the recessed portion, and a top of the columnar spacer is in contact with the convex portion.
摘要翻译： 显示装置包括具有有机和取向膜的第一基板，通过围绕像素区域的密封剂粘附到第一基板的第二基板，形成在第二基板上的形成在第一基板和第二基板之间的距离的柱状间隔件， 以及形成在像素区域的有机膜中的凹部，凹部与柱状间隔物相对。 凹部在凹部的底部具有凸部，凸部的与第一基板的顶部的高度比第一基板的有机薄膜的上表面的高度低。 凸部上的取向膜的厚度小于凹部的底部的厚度，柱状间隔件的顶部与凸部接触。
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公开(公告)号：US12072581B2
公开(公告)日：2024-08-27
申请号：US18143147
申请日：2023-05-04
发明人： Shoichi Uchino , Noboru Kunimatsu , Hidehiro Sonoda , Chikae Matsui , Yuko Matsumoto , Tomio Yaguchi , Toshiki Kaneko , Jun Tanaka
IPC分类号： G03F7/30 , G02F1/1337 , G03F7/36 , C08G73/10 , C09D179/08 , G02F1/13 , G02F1/1333
CPC分类号： G02F1/133788 , G03F7/30 , G03F7/36 , C08G73/1078 , C09D179/08 , C09K2323/027 , G02F1/1316 , G02F1/133354
摘要： Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.
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公开(公告)号：US12007636B2
公开(公告)日：2024-06-11
申请号：US17961617
申请日：2022-10-07
IPC分类号： G02F1/1333 , G02F1/1335 , G02F1/1343 , G02F1/1362 , G02F1/1368 , H01L27/12 , H01L29/786
CPC分类号： G02F1/133345 , G02F1/133305 , G02F1/136213 , G02F1/136227 , G02F1/1368 , H01L27/124 , H01L27/1248 , H01L29/78675 , G02F1/133504 , G02F1/133555 , G02F1/134363 , G02F1/13685
摘要： A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
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公开(公告)号：US11815774B2
公开(公告)日：2023-11-14
申请号：US17666831
申请日：2022-02-08
申请人： Japan Display Inc.
IPC分类号： G02F1/1362 , H04M1/02
CPC分类号： G02F1/136286 , G02F1/136209 , H04M1/0264
摘要： According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The display area includes a pixel electrode. The camera overlaps the incident light control area. The incident light control area includes an annular line, and a control electrode formed inside the annular line to be connected to the annular line. A time to apply a voltage to the control electrode is shorter than a time to apply a voltage to the pixel electrode.
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公开(公告)号：US10852589B2
公开(公告)日：2020-12-01
申请号：US16714083
申请日：2019-12-13
申请人： JAPAN DISPLAY INC.
IPC分类号： G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1362 , G02F1/1368 , G02F1/1343
摘要： The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.
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公开(公告)号：US20190179203A1
公开(公告)日：2019-06-13
申请号：US16276796
申请日：2019-02-15
发明人： Shoichi Uchino , Noboru Kunimatsu , Hidehiro Sonoda , Chikae Matsui , Yuko Matsumoto , Tomio Yaguchi , Toshiki Kaneko , Jun Tanaka
IPC分类号： G02F1/1337
摘要： Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.
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