ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:US20180373098A1

    公开(公告)日:2018-12-27

    申请号:US15780830

    申请日:2016-11-28

    IPC分类号: G02F1/1337 G02F1/1343

    摘要: The present invention aims to provide an alignment film capable of sufficiently reducing image sticking and stain in a liquid crystal display device, and a liquid crystal display device including a photo-alignment film and sufficiently reducing image sticking and stain. The alignment film of the present invention contains a polymer containing a nitrogen radical-containing group, and a photo-functional group. The nitrogen radical-containing group is preferably a hydrazyl radical-containing group represented by the following formula (I) or (II): wherein R1 is a direct bond or a divalent organic group; Me is a methyl group; and Bu is a butyl group.

    SEALANT FOR LIQUID CRYSTAL SEALING, AND LIQUID CRYSTAL DISPLAY DEVICE

    公开(公告)号:US20180371302A1

    公开(公告)日:2018-12-27

    申请号:US15779665

    申请日:2016-11-24

    摘要: The present invention aims to provide a sealant for sealing liquid crystal and a liquid crystal display device, which can sufficiently reduce image sticking and stains at the periphery of a liquid crystal display. The sealant for sealing liquid crystal of the present invention contains a curable resin and a radical polymerization initiator, wherein the radical polymerization initiator contains a silsesquioxane group. The silsesquioxane group is preferably a group represented by the following formula (I) or (II): wherein R1s are the same as or different from each other and each represent a monovalent organic group; R2 represents a divalent linking group; R3s are the same as or different from each other and each represent a monovalent organic group; and R4 represents a divalent linking group.

    SCANNING ANTENNA AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:US20200335874A1

    公开(公告)日:2020-10-22

    申请号:US15999371

    申请日:2017-02-16

    摘要: The scanning antenna (1000) is a scanning antenna in which antenna units (U) are arranged, the scanning antenna comprising: a TFT substrate (101) including: a first dielectric substrate (1), TFTs, gate bus lines, source bus lines, and patch electrodes (15), a slot substrate (201) including: a second dielectric substrate (51), and a slot electrode (55); a liquid crystal layer (LC) provided between the TFT substrate and the slot substrate; a sealing portion that envelopes the liquid crystal layer; and a reflective conductive plate (65). The slot electrode includes slots (57) arranged in correspondence with the plurality of patch electrodes. The sealing portion includes a main sealing portion (73Fa) that defines an injection port (74Fa) and an end sealing portion (75Fa) that seals the injection port (74Fa). The end sealing portion (75Fa) is formed of a thermosetting sealant material.

    METHOD OF PRODUCING LIQUID CRYSTAL DISPLAY DEVICE AND ALIGNMENT FILM MATERIAL

    公开(公告)号:US20190271867A1

    公开(公告)日:2019-09-05

    申请号:US16322881

    申请日:2017-08-01

    IPC分类号: G02F1/1337 C09K19/56 C08F2/48

    摘要: A method of producing the liquid crystal display device of the present invention is a method of producing a liquid crystal display device including a pair of substrates and a liquid crystal layer disposed between the substrates, the method including: forming the liquid crystal layer by sealing a liquid crystal material containing liquid crystal molecules including an alkenyl group between the substrates facing each other with a sealant in between; and performing an alignment treatment on an alignment film containing a polymer including a polymerizable group in a side chain and being disposed on a liquid crystal layer side surface of at least one of the substrates by irradiating the alignment film with ultraviolet rays and thereby polymerizing the polymerizable group.

    LIQUID CRYSTAL DISPLAY DEVICE
    5.
    发明申请

    公开(公告)号:US20190106629A1

    公开(公告)日:2019-04-11

    申请号:US16157080

    申请日:2018-10-10

    摘要: The present invention provides a liquid crystal display device capable of reducing a VHR decrease and a residual DC voltage increase after long-term use of the device. The liquid crystal display device includes: a first substrate; a second substrate facing the first substrate; a liquid crystal layer held between the first substrate and the second substrate; and an alignment film disposed on a surface adjacent to the liquid crystal layer of one or both of the first substrate and the second substrate, the one or both of the first substrate and the second substrate with the alignment film disposed thereon including an interlayer insulating film that contains at least one selected from a positive resist and a photoreaction product thereof, the liquid crystal layer containing a liquid crystal material that contains at least one selected from a terphenyl compound and a tetraphenyl compound, the alignment film containing at least one selected from the group consisting of a group represented by the following formula (S-1), a group represented by the following formula (S-2), and a heteroaromatic group.

    LIQUID CRYSTAL ALIGNMENT AGENT AND LIQUID CRYSTAL PANEL

    公开(公告)号:US20200208056A1

    公开(公告)日:2020-07-02

    申请号:US16628013

    申请日:2018-06-29

    IPC分类号: C09K19/56 C08G73/18 C08G73/22

    摘要: The present invention provides a liquid crystal alignment agent having high thermal stability and high solvent solubility, and a liquid crystal panel in which occurrence of ghosting and stain and a decrease in contrast are suppressed even under environments at high temperatures long period of time. The present invention is a liquid crystal alignment agent including a copolymer including a structure represented by a chemical formula (1) below, and a solvent. In the formula, X is a specified structure including a cyclic hydrocarbon group, Y1 is a specified structure including a cyclic hydrocarbon group, R1 represents a homogeneous alignment group, a homeotropic alignment group, or a photoreactive functional group, and Z1 and Z2 are the same or different, and represent an —NH— group, an —O— group, or a —S— group.

    LIQUID CRYSTAL CELL, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD OF PRODUCING LIQUID CRYSTAL CELL

    公开(公告)号:US20190233588A1

    公开(公告)日:2019-08-01

    申请号:US16311535

    申请日:2017-06-16

    IPC分类号: C08G73/10 G02F1/1337

    摘要: A liquid crystal cell according to the present invention includes two substrates facing each other and a liquid crystal layer between the substrates. The substrates have a photo-alignment film on at least one of opposing surfaces of the substrates. The photo-alignment film includes a polymer having a polyamic acid as a main chain. The polyamic acid is obtained through polymerization of a tetracarboxylic dianhydride having a bent structure and a diamine compound having an azobenzene group. The liquid crystal layer includes a first liquid crystal compound having an unsaturated bond and a second liquid crystal compound having at least one structure selected from the group consisting of structures represented by the following chemical formulas (1-1) and (1-2) and has a nematic-isotropic phase transition temperature of 90° C. or more.(Formula 1-1) and (Formula 1-2)

    LIQUID CRYSTAL DISPLAY DEVICE AND ALIGNMENT FILM

    公开(公告)号:US20190064604A1

    公开(公告)日:2019-02-28

    申请号:US16083851

    申请日:2017-03-03

    摘要: The present invention provides a liquid crystal display device capable of maintaining a favorable voltage holding ratio for a long period of time and thereby reducing generation of image sticking not only at room temperature but also at high temperatures. The liquid crystal display device includes: paired substrates; a liquid crystal layer that is held between the paired substrates and contains liquid crystal molecules; and an alignment film disposed between at least one of the paired substrates and the liquid crystal layer, the alignment film containing quantum dots.