公开(公告)号：US20170137667A1

公开(公告)日：2017-05-18

申请号：US15347067

申请日：2016-11-09

Applicant: Japan Display Inc.

Inventor： Hidehiro SONODA ,  Yasushi TOMIOKA ,  Noboru KUNIMATSU ,  Takenori HIROTA

IPC: C09D179/08 ,  G02F1/1337

Abstract: According to one embodiment, a varnish for a photo alignment film includes a first polyamic acid-based compound, which is a polyamic acid or a polyamic acid ester, in an organic solvent. The first polyamic acid-based compound has terminal skeletons containing no primary amino group.

公开(公告)号：US20170003537A1

公开(公告)日：2017-01-05

申请号：US15193261

申请日：2016-06-27

Applicant: Japan Display Inc.

Inventor： Shinichiro OKA ,  Toshinari SASAKI ,  Yasushi TOMIOKA

IPC: G02F1/13363 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/13363 ,  G02F1/133305 ,  G02F1/133634 ,  G02F1/133723 ,  G02F2001/133633 ,  G02F2413/02 ,  G02F2413/11

Abstract: There is provided a display device including a first base material, a second base material, an optical layer placed between the first base material and the second base material, and a first retardation layer placed in contact with the first base material, wherein the first base material and the second base material are formed from a polyimide, and the first retardation layer and the second retardation layer are liquid crystal layers which are vertically aligned. Providing the first and second retardation layers in contact with the first and second base materials make it possible to achieve a reduction in the thickness of the display device.

Abstract translation: 提供一种显示装置，包括第一基材，第二基材，放置在第一基材和第二基材之间的光学层，以及与第一基材接触放置的第一延迟层，其中第一基材 材料和第二基材由聚酰亚胺形成，并且第一延迟层和第二延迟层是垂直取向的液晶层。 提供与第一和第二基底材料接触的第一和第二延迟层使得可以实现显示装置的厚度的减小。

公开(公告)号：US20160097947A1

公开(公告)日：2016-04-07

申请号：US14968042

申请日：2015-12-14

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Noboru KUNIMATSU ,  Yosuke HYODO ,  Toshiki KANEKO ,  Yuko MATSUMOTO

IPC: G02F1/1339 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/13394 ,  G02F1/1339 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13396 ,  G02F2001/13398

Abstract: A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.

公开(公告)号：US20150138476A1

公开(公告)日：2015-05-21

申请号：US14542912

申请日：2014-11-17

Applicant: Japan Display Inc.

Inventor： Yosuke HYODO ,  Yasushi TOMIOKA ,  Noboru KUNIMATSU ,  Hidehiro SONODA ,  Yasuo IMANISHI ,  Takenori HIROTA

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1368

CPC classification number: G02F1/136227 ,  G02F1/133345 ,  G02F1/1337

Abstract: To take measures against the phenomenon of difficulty for the orientation film material to flow into the through-hole when the diameter of through-holes which connects the pixel electrode and the source electrode becomes small.An interlayer insulating film 109 made of SiN is formed on a counter electrode, and a pixel electrode 110 having a slit 1101 is formed on the interlayer insulating film 109. A through-hole 111 which connects the pixel electrode 110 and the source electrode of a TFT has a large opening on the upper side, a small opening on the lower side, and an inner wall extending between the large opening and the small opening. The pixel electrode 110 covers the through-hole 111 on an inner side of the pixel of the through-hole 111 but does not cover a periphery of the large opening of the through-hole on an outer side of the through-hole 111. Consequently, an orientation film material can easily flow from a starting point given by an end portion of the pixel electrode into the inside of the through-hole.

Abstract translation: 当连接像素电极和源极电极的通孔的直径变小时，采取措施来抵抗取向膜材料流入通孔的困难现象。 在对电极上形成由SiN制成的层间绝缘膜109，在层间绝缘膜109上形成有狭缝1101的像素电极110.将像素电极110和源电极连接的通孔111 TFT在上侧具有大的开口，在下侧具有小的开口，以及在大开口和小开口之间延伸的内壁。 像素电极110覆盖通孔111的像素的内侧的通孔111，但不覆盖通孔111的外侧的通孔的大开口的周围。因此， 取向膜材料可以容易地从由像素电极的端部给出的起始点流入通孔的内部。

公开(公告)号：US20150085218A1

公开(公告)日：2015-03-26

申请号：US14490723

申请日：2014-09-19

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Takato HIRATSUKA ,  Osamu ITOU

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133707 ,  G02F1/133788

Abstract: The present invention provides a high-definition, high-contrast, and high-aperture-ratio liquid crystal display device that prevents light leakage near wall electrodes. There is provided a liquid crystal display device including: two parallel wall electrodes that are disposed on the both sides of a pixel; an opposite electrode that is disposed in the middle between the two parallel wall electrodes; and a photo-alignment film, wherein the initial alignment direction of liquid crystal of the photo-alignment film is substantially parallel to or orthogonal to the stretching direction of the two parallel wall electrodes, and the opposite electrode is inclined only by a predetermined bias angle relative to the initial alignment direction of liquid crystal.

Abstract translation: 本发明提供一种高分辨率，高对比度和高开口率液晶显示装置，其防止壁电极附近的光泄漏。 提供了一种液晶显示装置，包括：两个平行的壁电极，设置在像素的两侧; 设置在两个平行壁电极之间的中间的相对电极; 以及光取向膜，其中光取向膜的液晶的初始取向方向基本上平行于或垂直于两个平行壁电极的拉伸方向，并且相对电极仅倾斜预定偏置角 相对于液晶的初始取向方向。

公开(公告)号：US20150064366A1

公开(公告)日：2015-03-05

申请号：US14476982

申请日：2014-09-04

Applicant: Japan Display Inc.

Inventor： Masaki MATSUMORI ,  Yasushi TOMIOKA ,  Noboru KUNIMATSU

IPC: G02F1/33

CPC classification number: G02F1/33 ,  G02F1/133723 ,  G02F1/133788 ,  Y10T428/1023

Abstract: The long residual image characteristic of a conventional photo-orientation film material is insufficient. A liquid crystal display device comprises substrates, a liquid crystal layer, an electrode group to apply an electric field to the liquid crystal layer, and orientation control films placed between the substrates and the liquid crystal layer. Each of the orientation control films comprises a polyimide and a polyimide precursor, as materials of the polyimide and the polyimide precursor, at least one kind of first diamines, at least one kind of second diamines, and a cyclobutane tetracarboxylic dianhydride derivative are contained, and an orientation restraining force is granted by the irradiation of nearly linearly polarized light.

Abstract translation: 常规光取向膜材料的长残留图像特性不足。 液晶显示装置包括基板，液晶层，向液晶层施加电场的电极组以及配置在基板和液晶层之间的取向控制膜。 每个取向控制膜包含聚酰亚胺和聚酰亚胺前体，作为聚酰亚胺和聚酰亚胺前体的材料，含有至少一种第一二胺，至少一种第二二胺和环丁烷四羧酸二酐衍生物，以及 通过近似线偏振光的照射来确定取向限制力。

公开(公告)号：US20150062515A1

公开(公告)日：2015-03-05

申请号：US14474511

申请日：2014-09-02

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Noboru KUNIMATSU ,  Hidehiro SONODA ,  Yosuke HYODO

IPC: G02F1/1337 ,  G02F1/1333 ,  G02F1/1339

CPC classification number: G02F1/133788 ,  G02F1/133345 ,  G02F1/13394 ,  G02F2001/133388

Abstract: The invention provides a liquid crystal display device which is highly reliable even with a slim frame area. Ina liquid crystal display device having a display area and a frame area, the frame area includes, in an area close to the display area, a flat portion where an organic insulation film, a transparent conductive film, and an alignment film are stacked in this order and, in an area away from the display area, a groove structure formed in the organic insulation film, the groove structure being continuous surrounding the display area. The organic insulation film is less wettable than the transparent conductive film by the alignment film ink.

Abstract translation: 本发明提供一种液晶显示装置，其即使具有纤细的框架区域也是高度可靠的。 在具有显示区域和框架区域的液晶显示装置中，框架区域在靠近显示区域的区域中包括在其中堆叠有机绝缘膜，透明导电膜和取向膜的平坦部分 并且在远离显示区域的区域中，形成在有机绝缘膜中的凹槽结构，所述凹槽结构连续围绕显示区域。 有机绝缘膜比通过取向膜墨水的透明导电膜的可润湿性差。

公开(公告)号：US20150055070A1

公开(公告)日：2015-02-26

申请号：US14458308

申请日：2014-08-13

Applicant: Japan Display Inc.

Inventor： Noboru KUNIMATSU ,  Yasushi TOMIOKA ,  Hidehiro SONODA ,  Yosuke HYODO ,  Yasuo IMANISHI

IPC: G02F1/1337 ,  G02F1/1339 ,  G02F1/1343

CPC classification number: G02F1/133788 ,  G02F1/133345 ,  G02F1/1337 ,  G02F1/1339

Abstract: A TFT substrate and a counter substrate are bonded via a seal material. Alignment films are applied to entire surfaces of the TFT substrate and the counter substrate so as to realize even thickness of the alignment film. This allows a display region to be formed up to the area around the seal material. The alignment film is photo-alignment processed. An organic film formed of the material which is not photo-aligned is interposed between the alignment film and the seal material. High bonding strength between the organic film and the seal material improves reliability of a seal portion as well as reduces a frame region.

Abstract translation: TFT基板和对置基板通过密封材料接合。 将对准膜施加到TFT基板和对置基板的整个表面，以实现取向膜的均匀厚度。 这允许显示区域形成到密封材料周围的区域。 对准膜进行光取向处理。 由取向膜和密封材料之间插入由不被光取向的材料形成的有机膜。 有机膜和密封材料之间的高粘结强度提高了密封部分的可靠性，并且缩小了框架区域。

公开(公告)号：US20150055043A1

公开(公告)日：2015-02-26

申请号：US14458314

申请日：2014-08-13

Applicant: Japan Display Inc.

Inventor： Takeshi SAKAI ,  Toshimasa ISHIGAKI ,  Yasushi TOMIOKA

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1337 ,  G02F1/1333

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F1/136227 ,  G02F2001/134372

Abstract: In an IPS mode liquid crystal display device, a counter electrode is formed flat on a first insulating film. A second insulating film is formed in the peripheral portion of the counter electrode. A third insulating film is formed so as to cover the counter electrode and the second insulating film. A pixel electrode is formed on the third insulating film. The second and third insulating films are present between the pixel electrode and the counter electrode in the periphery of the pixel. The third insulating film is present between the pixel electrode and the counter electrode in the portion other than the peripheral portion of the pixel. An electric field between the pixel electrode and the counter electrode is smaller in the periphery of the pixel than in the vicinity of the center of the pixel, to prevent the occurrence of a domain in the periphery of the pixel.

Abstract translation: 在IPS模式的液晶显示装置中，对置电极在第一绝缘膜上平坦地形成。 第二绝缘膜形成在对电极的周边部分中。 形成第三绝缘膜以覆盖对电极和第二绝缘膜。 像素电极形成在第三绝缘膜上。 第二和第三绝缘膜存在于像素周边的像素电极和对电极之间。 第三绝缘膜存在于像素电极和对置电极之间的除了像素的周边部分之外的部分中。 像素电极和对电极之间的电场在像素的周边比在像素的中心附近更小，以防止在像素的周围出现域。

公开(公告)号：US20140307209A1

公开(公告)日：2014-10-16

申请号：US14249454

申请日：2014-04-10

Applicant: Japan Display Inc.

Inventor： Yasushi TOMIOKA ,  Osamu ITOU ,  Toshimasa ISHIGAKI ,  Hidehiro SONODA ,  Yosuke HYODO

IPC: G02F1/1339

CPC classification number: G02F1/13394 ,  G02F1/133788 ,  G02F2001/13398

Abstract: A high-definition and high-contrast liquid crystal display device having a high aperture ratio without light leakage around a columnar spacer is provided. The liquid crystal display device of a horizontal electric field type includes a TFT substrate with a pixel electrode and a common electrode, a color filter substrate with a color filter, a columnar spacer interposed between the substrates, and a liquid crystal layer arranged between the substrates. A liquid crystal alignment film formed between the substrates is a photo-alignment film. The columnar spacer, formed on the color filter substrate or the TFT substrate, has a wall-like shape and an inclined surface extending in a direction parallel to or perpendicular to a direction in which the liquid crystal is initially aligned.

Abstract translation: 提供了一种高分辨率和高对比度的液晶显示装置，其具有高的孔径比，而不会在圆柱形间隔物周围发生漏光。 水平电场型的液晶显示装置包括具有像素电极和公共电极的TFT基板，具有滤色器的滤色器基板，插入在基板之间的柱状隔离物和布置在基板之间的液晶层 。 形成在基板之间的液晶取向膜是光取向膜。 形成在滤色器基板或TFT基板上的柱状间隔物具有壁状形状和在与液晶初始对准的方向平行或垂直的方向上延伸的倾斜面。