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公开(公告)号：US20240045296A1
公开(公告)日：2024-02-08
申请号：US18216774
申请日：2023-06-30
申请人： RealD Spark, LLC
IPC分类号： G02F1/139 , G02F1/1337 , G02F1/1335 , G02F1/13363 , G02F1/1347 , F21V8/00
CPC分类号： G02F1/1393 , G02F1/133738 , G02F1/133742 , G02F1/133536 , G02F1/133633 , G02F1/133757 , G02F1/13471 , G02F1/133746 , G02B6/0016 , G02B6/0036 , G02B6/0068 , G02B6/0076 , G02F1/13363 , G02F1/133528 , H10K50/868
摘要： A display device comprising a spatial light modulator having a display polariser arranged on one side of the spatial light modulator is provided with an additional polariser arranged on the same side as the display polariser and polar control retarders between the additional polariser and the display polariser. The polar control retarders include a liquid crystal retarder having two surface alignment layers disposed adjacent to a layer of liquid crystal material on opposite sides. The surface alignment layers provide alignment in the adjacent liquid crystal material with an in-plane component, wherein the angle of said in-plane component changes monotonically along a predetermined axis across the display device, providing reduction of luminance in directions that are offset from a viewing axis, increasing uniformity in the reduction of luminance in directions that are offset from a viewing axis.
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公开(公告)号：US20230333428A1
公开(公告)日：2023-10-19
申请号：US18133981
申请日：2023-04-12
IPC分类号： G02F1/1335 , G02F1/1343 , G02F1/1337 , G02F1/139 , G09G3/34
CPC分类号： G02F1/133622 , G02F1/134336 , G02F1/133746 , G02F1/1396 , G02F1/133742 , G09G3/3413 , G02F2203/01 , G02F2203/64 , G02F2202/40 , G02F2201/52 , G09G2300/0491 , G09G2310/0235
摘要： Provided is a liquid crystal display device that can achieve high-speed response in both rise time and fall time and has a high transmittance, a high contrast ratio, and excellent viewing angle characteristics. The liquid crystal display device provides color display using a field sequential driving system where each frame period includes subframe periods and includes: a liquid crystal display panel; a light source that irradiates the liquid crystal display panel with lights of multiple colors; and a controller that drives the light source to time-divisionally irradiate the liquid crystal display panel with the lights of multiple colors. The liquid crystal display panel includes, sequentially in the following order: a first substrate including pixel electrodes; a first alignment film; a liquid crystal layer; a second alignment film; and a second substrate including a common electrode.
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公开(公告)号：US11762241B2
公开(公告)日：2023-09-19
申请号：US17121938
申请日：2020-12-15
申请人： MERCK PATENT GMBH
发明人： Michael Junge , Rainer Neeff
IPC分类号： G02F1/1337 , E06B9/24
CPC分类号： G02F1/133746 , E06B9/24 , G02F1/133723 , G02F1/133742 , G02F1/133769 , E06B2009/2464 , G02F2202/022 , G02F2202/043
摘要： Devices for the regulation of light transmission and in particular switchable windows, including window elements containing a switchable optical cell having a homeotropically aligned liquid crystal layer with a pretilt angle in the range of 77° to 88°.
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公开(公告)号：US20240210767A1
公开(公告)日：2024-06-27
申请号：US18600989
申请日：2024-03-11
发明人： Mitsuaki HIRATA
IPC分类号： G02F1/1343 , G02F1/1337
CPC分类号： G02F1/134336 , G02F1/133707 , G02F1/133746 , G02F1/133788
摘要： Each pixel of the liquid crystal display device includes a first, second, third, and fourth domains arranged in two rows and two columns, and reference alignment directions of the respective domains are first, second, third, and fourth directions. The first direction and the second direction form an angle of approximately 180°, and the first domain and the second domain are adjacent to each other in an oblique direction. The pixel electrode includes a plurality of first slits formed in a region corresponding to the first domain and extending approximately parallel to the first direction, and a plurality of second slits formed in a region corresponding to the second domain and extending approximately parallel to the second direction, and has no slits in a region corresponding to the third domain and no slits in a region corresponding to the fourth domain.
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公开(公告)号：US11994775B2
公开(公告)日：2024-05-28
申请号：US17628210
申请日：2020-07-21
申请人： JSR CORPORATION
发明人： Yoshihiko Kuroda , Koichi Miyachi
IPC分类号： G02F1/1337 , G02F1/1335
CPC分类号： G02F1/133707 , G02F1/133531 , G02F1/133723 , G02F1/133746
摘要： In this liquid crystal display device, a plurality of pixels 30 are arranged in a display region. The liquid crystal display device comprises a first substrate 11 in which a pixel electrode 15 having slits 15a is provided, a second substrate disposed face to the first substrate 11, a liquid crystal layer 13 containing liquid crystal molecules that have negative dielectric anisotropy, a first alignment film 22, and a second alignment film 23. The slits 15a are positioned in each alignment region of a plurality of alignment regions in the pixels 30, and have oblique slit parts extending in an oblique direction with respect to sides of the pixels 30. The angle γ formed by the direction in which the oblique slit parts extends and a liquid crystal projection direction is 15 degrees or more and 85 degrees or less.
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公开(公告)号：US11960176B2
公开(公告)日：2024-04-16
申请号：US18106465
申请日：2023-02-06
发明人： Mitsuaki Hirata
IPC分类号： G02F1/1343 , G02F1/1337
CPC分类号： G02F1/134336 , G02F1/133707 , G02F1/133746 , G02F1/133788
摘要： Each pixel of the liquid crystal display device includes a first, second, third, and fourth domains arranged in two rows and two columns, and reference alignment directions of the respective domains are first, second, third, and fourth directions. The first direction and the second direction form an angle of approximately 180°, and the first domain and the second domain are adjacent to each other in an oblique direction. The pixel electrode includes a plurality of first slits formed in a region corresponding to the first domain and extending approximately parallel to the first direction, and a plurality of second slits formed in a region corresponding to the second domain and extending approximately parallel to the second direction, and has no slits in a region corresponding to the third domain and no slits in a region corresponding to the fourth domain.
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公开(公告)号：US20240192549A1
公开(公告)日：2024-06-13
申请号：US18286913
申请日：2021-10-22
发明人： TSUNG-HSIEN LIN , CHENG-CHANG LI , HENG-YI TSENG , HUNG-CHANG JAU , LI-MIN CHANG , KUAN-WU LIN
IPC分类号： G02F1/13363 , G02F1/1337 , G02F1/1343
CPC分类号： G02F1/133636 , G02F1/133746 , G02F1/134327
摘要： An intelligent window includes two substrates and a dimming layer. Each substrate is electrically connected to a voltage source. A switchable electric field is formed between the two substrates. The dimming layer is formed by filling a liquid crystal material between the two substrates. The liquid crystal material is formed by mixing a chiral molecule, a dichroic dye, and a salt ion in a nematic liquid crystal. A weight percentage concentration of the chiral molecule in the liquid crystal material is determined according to a limitation formula (I). C is the weight percentage concentration, n is a birefringence index of the liquid crystal material, p is a chiral force of the chiral molecule in micrometer−1, D is a thickness of the dimming layer in micrometer, m1 is a constant of multiaxial absorption condition in micrometer, and m2 is a constant of normally transparent condition.
n
4
pm
1
≤
C
≤
m
2
Dp
(
I
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公开(公告)号：US11754875B2
公开(公告)日：2023-09-12
申请号：US17722437
申请日：2022-04-18
IPC分类号： G02F1/1335 , G02F1/1343 , G02B30/52 , G02F1/1337
CPC分类号： G02F1/133531 , G02B30/52 , G02F1/133512 , G02F1/133746 , G02F1/134336
摘要： The liquid crystal display panel sequentially includes: a first polarizing plate; a first substrate; a first alignment film; a liquid crystal layer containing liquid crystal molecules; a second alignment film; a second substrate; and a second polarizing plate. The liquid crystal display panel is a normally black liquid crystal display panel capable of shifting into a transparent display state. The first alignment film and the second alignment film have been subjected to alignment treatment such that a first domain and a second domain in which alignment vectors are different from each other are arranged side by side in a column direction. In a plan view, a liquid crystal alignment axis of the first domain and a liquid crystal alignment axis of the second domain obliquely intersect a polarization axis of the first polarizing plate and a polarization axis of the second polarizing plate and are parallel to each other.
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公开(公告)号：US20230251532A1
公开(公告)日：2023-08-10
申请号：US18106465
申请日：2023-02-06
发明人： Mitsuaki HIRATA
IPC分类号： G02F1/1343 , G02F1/1337
CPC分类号： G02F1/134336 , G02F1/133707 , G02F1/133746 , G02F1/133788
摘要： Each pixel of the liquid crystal display device includes a first, second, third, and fourth domains arranged in two rows and two columns, and reference alignment directions of the respective domains are first, second, third, and fourth directions. The first direction and the second direction form an angle of approximately 180°, and the first domain and the second domain are adjacent to each other in an oblique direction. The pixel electrode includes a plurality of first slits formed in a region corresponding to the first domain and extending approximately parallel to the first direction, and a plurality of second slits formed in a region corresponding to the second domain and extending approximately parallel to the second direction, and has no slits in a region corresponding to the third domain and no slits in a region corresponding to the fourth domain.
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公开(公告)号：US20230418110A1
公开(公告)日：2023-12-28
申请号：US17272308
申请日：2020-12-31
发明人： Xinyuan Che
IPC分类号： G02F1/1337 , G02F1/1347
CPC分类号： G02F1/133776 , G02F1/1347 , G02F1/133746 , G02F2201/56
摘要： The present disclosure provides a liquid crystal display (LCD) panel and a curved display device. The LCD panel includes: a first substrate; a second substrate disposed opposite to the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes a first liquid crystal layer adjacent to the first substrate and a second liquid crystal layer adjacent to the second substrate. Liquid crystal molecules in the first liquid crystal layer have a first pretilt angle relative to the first substrate, liquid crystal molecules in the second liquid crystal layer have a second pretilt angle relative to the second substrate, and the first pretilt angle and the second pretilt angle are not equal.
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