公开(公告)号：US20150042930A1

公开(公告)日：2015-02-12

申请号：US14344823

申请日：2012-10-03

Applicant: DIC Corporation

Inventor： Shinji Ogawa ,  Yoshinori Iwashita ,  Akira Kimura ,  Seiji Funakura ,  Katsunori Shimada

IPC: C09K19/30 ,  G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/133514 ,  C09K19/3003 ,  C09K19/44 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3027 ,  C09K2019/523 ,  G02B5/20 ,  G02B5/223 ,  G02F1/133512 ,  G02F1/1343 ,  G02F1/1393

Abstract: The present invention provides a liquid crystal display device that prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) in a liquid crystal layer and resolves the problems of display defects such as white streaks, alignment nonuniformity, and image sticking. Since the liquid crystal display device of the present invention prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) in the liquid crystal layer and resolves the problems of display defects such as image sticking, the liquid crystal display device is useful as VA-mode and PSVA-mode liquid crystal display devices of an active matrix drive type, and is applicable to liquid crystal display devices of liquid crystal televisions, monitors, cellular phones, smart phones, etc.

Abstract translation: 本发明提供一种液晶显示装置，其防止液晶层中的电压保持率（VHR）的降低和离子密度（ID）的增加，并且解决了诸如白色条纹，取向不均匀性和显示缺陷的问题 图像粘贴 由于本发明的液晶显示装置防止液晶层中的电压保持率（VHR）的降低和离子密度（ID）的增加，并且解决了诸如图像残留的显示缺陷的问题，液晶显示器 器件可用作有源矩阵驱动型的VA模式和PSVA模式液晶显示装置，并且适用于液晶电视，监视器，蜂窝电话，智能电话等的液晶显示装置。

公开(公告)号：US12252617B2

公开(公告)日：2025-03-18

申请号：US17296639

申请日：2020-04-30

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Ayaka Yamaji ,  Kazushi Suzuki ,  Mayumi Tokuoka ,  Katsunori Shimada

IPC: C09B47/10

Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using an acidic compound or a compound that generates an acid by reacting with water, and the step includes a pretreatment step of kneading the halogenated zinc phthalocyanine crude pigment along with water.

公开(公告)号：US11976199B2

公开(公告)日：2024-05-07

申请号：US17289024

申请日：2020-04-28

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Kentaro Oishi ,  Ryousuke Asami ,  Mayumi Tokuoka ,  Katsunori Shimada ,  Keisuke Fujisawa

IPC: C09B47/10 ,  C09B67/20 ,  G02B5/20

CPC classification number: C09B47/10 ,  C09B67/0067 ,  G02B5/20

Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm−1 when a peak intensity at 650±10 cm−1 is regarded as 100%.

公开(公告)号：US20230287218A1

公开(公告)日：2023-09-14

申请号：US18013406

申请日：2021-06-03

Applicant: DIC Corporation

Inventor： Keisuke Sakamoto ,  Yuji Tamura ,  Kentaro Oishi ,  Yuta Hidaka ,  Takeshi Yamada ,  Ryousuke Asami ,  Kengo Yasui ,  Mayumi Tokuoka ,  Katsunori Shimada

IPC: C09B47/10 ,  C09B67/20 ,  C09B67/50

CPC classification number: C09B47/10 ,  C09B67/006 ,  C09B67/0026

Abstract: The halogenated zinc phthalocyanine pigment is for use as a green pigment for color filters and capable of achieving high brightness. In the halogenated zinc phthalocyanine pigment, when a coating film containing 1.00 part by mass of the pigment, 0.95 parts by mass of a benzyl methacrylate-methacrylic acid copolymer, and 0.30 parts by mass of a dimethylaminoethyl methacrylate copolymer is heated at 230° C. for one hour to form an evaluation coating film having a thickness of 4 μm, an average scattering intensity at scattering angles 2θ in a range of 17° to 21° is determined from a two-dimensional scattering image obtained by GI-WAXS measurement of the evaluation coating film, and a normalized average scattering intensity is determined such that the average scattering intensity at an azimuth of 45° is 1, the normalized average scattering intensity at azimuths of 5° to 89° is 0.70 to 1.15.

公开(公告)号：US10011773B2

公开(公告)日：2018-07-03

申请号：US14895987

申请日：2014-06-03

Applicant: DIC CORPORATION

Inventor： Hidenari Akiyama ,  Isa Nishiyama ,  Seiji Fanakura ,  Katsunori Shimada

IPC: G02F1/1333 ,  C09K19/58 ,  C09K19/20 ,  C09K19/54 ,  G02B5/20 ,  C09K19/30 ,  C09K19/34 ,  G02F1/1335 ,  C09K19/04 ,  C09K19/52 ,  G02F1/137 ,  C09K19/18

CPC classification number: C09K19/588 ,  C09K19/20 ,  C09K19/2021 ,  C09K19/2028 ,  C09K19/3028 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3402 ,  C09K19/3458 ,  C09K19/348 ,  C09K19/54 ,  C09K19/586 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/181 ,  C09K2019/2042 ,  C09K2019/2078 ,  C09K2019/301 ,  C09K2019/304 ,  C09K2019/3063 ,  C09K2019/3083 ,  C09K2019/3422 ,  C09K2019/523 ,  G02B5/201 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/13718

Abstract: The present invention relates to a liquid crystal display device that includes a particular color filter containing a material containing chiral liquid crystals and a particular dye and/or pigment.The present invention provides a liquid crystal display device that can prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and solve the problem of display defects, such as white spots, variations in alignment, and burn-in.Because liquid crystal display devices according to the present invention characteristically prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and reduces the occurrence of display defects, such as burn-in, the liquid crystal display devices are particularly useful as liquid crystal display devices in IPS mode and FFS mode for active-matrix driving and can be applied to household electrical appliances, automobiles, production facilities, measuring and analytical instruments, and communication devices.

公开(公告)号：US09809752B2

公开(公告)日：2017-11-07

申请号：US14899345

申请日：2014-06-06

Applicant: DIC Corporation

Inventor： Kazuaki Hatsusaka ,  Hidenari Akiyama ,  Akira Kimura ,  Seiji Funakura ,  Katsunori Shimada

IPC: G03F1/00 ,  C09K19/58 ,  C09K19/20 ,  C09K19/54 ,  C09K19/30 ,  C09K19/34 ,  C09K19/14 ,  C09K19/04 ,  C09K19/52 ,  G02F1/137 ,  C09K19/12 ,  C09K19/18 ,  C09K19/32

CPC classification number: C09K19/588 ,  C09K19/14 ,  C09K19/2021 ,  C09K19/2028 ,  C09K19/3028 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3402 ,  C09K19/3458 ,  C09K19/348 ,  C09K19/54 ,  C09K19/586 ,  C09K2019/0437 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/181 ,  C09K2019/2035 ,  C09K2019/2042 ,  C09K2019/2078 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3025 ,  C09K2019/3027 ,  C09K2019/304 ,  C09K2019/3063 ,  C09K2019/3069 ,  C09K2019/3083 ,  C09K2019/323 ,  C09K2019/3422 ,  C09K2019/3425 ,  C09K2019/523 ,  C09K2219/03 ,  G02F2001/13793

Abstract: The present invention relates to a liquid crystal display device that includes a particular color filter containing a material containing chiral liquid crystals and a particular pigment.The present invention provides a liquid crystal display device that can prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and solve the problem of display defects, such as white spots, variations in alignment, and burn-in.Because liquid crystal display devices according to the present invention characteristically prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and reduces the occurrence of display defects, such as burn-in, the liquid crystal display devices are particularly useful as liquid crystal display devices in IPS mode and FFS mode for active-matrix driving and can be applied to household electrical appliances, automobiles, production facilities, measuring and analytical instruments, and communication devices.

公开(公告)号：US09715051B2

公开(公告)日：2017-07-25

申请号：US14115305

申请日：2012-09-20

Applicant: DIC CORPORATION

Inventor： Shinji Ogawa ,  Yoshinori Iwashita ,  Seiji Funakura ,  Katsunori Shimada

IPC: C09K19/30 ,  G02B5/22 ,  C09K19/44 ,  G02F1/1335 ,  C09K19/12 ,  C09K19/52

CPC classification number: G02B5/223 ,  C09K19/3003 ,  C09K19/44 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3013 ,  C09K2019/3016 ,  C09K2019/3027 ,  C09K2019/521 ,  C09K2019/523 ,  G02F1/133514

Abstract: There is provided a liquid crystal display device in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as white streaks, alignment unevenness, and image sticking are overcome. In the liquid crystal display device, a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and display defects such as image sticking are suppressed. Therefore, the liquid crystal display device is useful for active matrix liquid crystal display apparatuses that use a VA mode or a PSVA mode and can be applied to liquid crystal display apparatuses of liquid crystal televisions, monitors, cellular phones, smart phones, and the like.

公开(公告)号：US09442321B2

公开(公告)日：2016-09-13

申请号：US14649379

申请日：2013-11-26

Applicant: DIC CORPORATION

Inventor： Masakazu Kaneoya ,  Kiyofumi Takeuchi ,  Seiji Funakura ,  Isao Oshiumi ,  Katsunori Shimada

IPC: C09K19/60 ,  G02F1/1335 ,  C09K19/32 ,  C09K19/20 ,  C09K19/54 ,  G02F1/13 ,  C09K19/04 ,  C09K19/12 ,  C09K19/30 ,  C09K19/52

CPC classification number: G02F1/133514 ,  C09K19/2014 ,  C09K19/3001 ,  C09K19/3066 ,  C09K19/322 ,  C09K19/542 ,  C09K19/60 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/3004 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3021 ,  C09K2019/3036 ,  C09K2019/3037 ,  C09K2019/304 ,  C09K2019/523 ,  G02F1/13 ,  G02F1/133512

Abstract: There is provided a liquid crystal display apparatus that may limit a reduction in the voltage holding ratio (VHR) of a liquid crystal layer and limit an increase in the ion density (ID) in the liquid crystal layer and address issues of faulty display such as white missing pixels, alignment inconsistencies, and burn-in. The liquid crystal display apparatus includes a first substrate, a second substrate, a liquid crystal composition layer held between the first substrate and the second substrate, a color filter including a black matrix and at least RGB three-color pixel portions, a pixel electrode, and a common electrode. The liquid crystal composition layer is composed of a liquid crystal composition including one or more compounds represented by General Formula (LC1).

公开(公告)号：US09410084B2

公开(公告)日：2016-08-09

申请号：US14429299

申请日：2013-06-18

Applicant: DIC CORPORATION

Inventor： Takeshi Kuriyama ,  Jouji Kawamura ,  Seiji Funakura ,  Katsunori Shimada

IPC: G02F1/1334 ,  G02F1/1335 ,  C09K19/54 ,  C09K19/30 ,  C09K19/12 ,  C09K19/56 ,  C09K19/04 ,  C09K19/34

CPC classification number: C09K19/3001 ,  C09K19/54 ,  C09K19/56 ,  C09K19/582 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/122 ,  C09K2019/123 ,  C09K2019/124 ,  C09K2019/3004 ,  C09K2019/3006 ,  C09K2019/3009 ,  C09K2019/301 ,  C09K2019/3016 ,  C09K2019/3019 ,  C09K2019/3025 ,  C09K2019/3422 ,  C09K2019/523 ,  G02B5/201 ,  G02F1/1334 ,  G02F1/133512 ,  G02F1/133514

Abstract: The present invention provides a liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in the liquid crystal layer, and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. Since a liquid crystal display device according to the present invention has a feature of preventing a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in the liquid crystal layer, and suppressing the occurrence of display defects such as image sticking, the liquid crystal display device is particularly useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices such as liquid crystal televisions, monitors, cellular phones, and smart phones.

Abstract translation: 本发明提供一种防止液晶层中的电压保持率（VHR）降低和离子密度（ID）增加的液晶显示装置，能够解决白色条纹等显示缺陷的问题， 排列变化，图像粘贴。 由于根据本发明的液晶显示装置具有防止液晶层中的电压保持率（VHR）降低和离子密度（ID）增加的特征，并且抑制了显示缺陷的发生 作为图像粘贴，液晶显示装置对于具有IPS模式或FFS模式的有源矩阵驱动液晶显示装置特别有用，并且可以应用于液晶电视，显示器，蜂窝电话和智能液晶显示装置 手机。

公开(公告)号：US20160215217A1

公开(公告)日：2016-07-28

申请号：US14895987

申请日：2014-06-03

Applicant: DIC CORPORATION

Inventor： Hidenari Akiyama ,  Isa Nishiyama ,  Seiji Fanakura ,  Katsunori Shimada

IPC: C09K19/58 ,  C09K19/30 ,  C09K19/34 ,  G02F1/1335

CPC classification number: C09K19/588 ,  C09K19/20 ,  C09K19/2021 ,  C09K19/2028 ,  C09K19/3028 ,  C09K19/3066 ,  C09K19/3068 ,  C09K19/3402 ,  C09K19/3458 ,  C09K19/348 ,  C09K19/54 ,  C09K19/586 ,  C09K2019/0448 ,  C09K2019/0466 ,  C09K2019/181 ,  C09K2019/2042 ,  C09K2019/2078 ,  C09K2019/301 ,  C09K2019/304 ,  C09K2019/3063 ,  C09K2019/3083 ,  C09K2019/3422 ,  C09K2019/523 ,  G02B5/201 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/13718

Abstract: The present invention relates to a liquid crystal display device that includes a particular color filter containing a material containing chiral liquid crystals and a particular dye and/or pigment.The present invention provides a liquid crystal display device that can prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and solve the problem of display defects, such as white spots, variations in alignment, and burn-in.Because liquid crystal display devices according to the present invention characteristically prevent a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and reduces the occurrence of display defects, such as burn-in, the liquid crystal display devices are particularly useful as liquid crystal display devices in IPS mode and FFS mode for active-matrix driving and can be applied to household electrical appliances, automobiles, production facilities, measuring and analytical instruments, and communication devices.

Abstract translation: 液晶显示装置技术领域本发明涉及一种液晶显示装置，其包括含有手性液晶的材料和特定染料和/或颜料的特定滤色器。 本发明提供一种能够防止液晶层的电压保持率（VHR）降低的液晶显示装置，能够解决诸如白斑，排列变化，老化等显示缺陷的问题。 由于根据本发明的液晶显示装置的特征在于防止液晶层的电压保持率（VHR）的降低，并且减少了诸如老化的显示缺陷的发生，所以液晶显示装置特别有用 IPS模式的液晶显示装置和有源矩阵驱动的FFS模式，可应用于家用电器，汽车，生产设备，测量和分析仪器以及通讯装置。