公开(公告)号：US10353233B2

公开(公告)日：2019-07-16

申请号：US15465255

申请日：2017-03-21

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Naoki Sato ,  Kazuhiko Tsuda

IPC: G02F1/1335

Abstract: A liquid crystal display device according to an embodiment is disclosed. The liquid crystal display device includes a liquid crystal display panel; a light emitting diode (LED) substrate; a plurality of light emitting diodes (LEDs) disposed on the LED substrate; a first diffuser disposed between the plurality of LEDs and the liquid crystal display panel; a bandpass filter being disposed between the plurality of LEDs and the diffuser; and a plurality of focus lenses corresponding to the plurality of LEDs, wherein each of the LEDs includes one of the plurality of focus lenses.

公开(公告)号：US10281777B2

公开(公告)日：2019-05-07

申请号：US15476204

申请日：2017-03-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuhiko Tsuda ,  Katsuji Tanaka

IPC: G02F1/1343 ,  G02F1/1347

Abstract: A curved dual-panel electronic display device including a back display panel having a curved shape and a plurality of pixels and a front display panel having a curved shape and a plurality of pixels. The front display panel back display panel being stacked and curved such that the outer surface of the front display has convex shape. A first pixel from the front display panel overlaps with a second pixel from a second display panel in a normal view, and a length of the first pixel in a direction of the curve of the front display panel is larger than the length of the second pixel in a length direction of the curve of the back display panel.

公开(公告)号：US10115356B2

公开(公告)日：2018-10-30

申请号：US15475171

申请日：2017-03-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kenta Endo ,  Kazuhiko Tsuda

IPC: G09G3/36 ,  G09G3/00

Abstract: An apparatus and method for a liquid crystal display (LCD). The LCD can include a first LCD panel, a second LCD panel stacked on the first LCD panel, and a data processor that generates, based on an external input image signal, a first image data for the first LCD panel and a second image data for the second LCD panel. The data processor may further include a memory storing a position of a defective pixel of a white spot and a controller changing a gray scale level of a first pixel using the position of the defective pixel, the first pixel at least partially overlapping the position of the defective pixel, wherein the defective pixel is in the first LCD panel and the first pixel is in the second LCD panel.

公开(公告)号：US10989955B2

公开(公告)日：2021-04-27

申请号：US16859606

申请日：2020-04-27

Applicant: Panasonic Liquid Crystal Display Co., Ltd. ,  Pasona Knowledge Partner Inc.

Inventor： Yoichi Yasui ,  Takenori Yaguchi ,  Takaaki Kitada ,  Kazuhiko Tsuda ,  Takashi Kato ,  Hidenori Kikuchi ,  Naoki Terasawa ,  Katsuji Tanaka

IPC: G02F1/1335 ,  H01L27/12 ,  G02F1/1347 ,  G02F1/1362 ,  G02F1/1333

Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.

公开(公告)号：US10670912B2

公开(公告)日：2020-06-02

申请号：US16436298

申请日：2019-06-10

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoichi Yasui ,  Takenori Yaguchi ,  Takaaki Kitada ,  Kazuhiko Tsuda ,  Takashi Kato ,  Hidenori Kikuchi ,  Naoki Terasawa ,  Katsuji Tanaka

IPC: G02F1/1335 ,  H01L27/12 ,  G02F1/1347 ,  G02F1/1362 ,  G02F1/1333

Abstract: A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.

公开(公告)号：US10598983B2

公开(公告)日：2020-03-24

申请号：US16180431

申请日：2018-11-05

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoichi Yasui ,  Katsuhiro Kikuchi ,  Kazuhiko Tsuda

IPC: G02F1/1335 ,  G02F1/1347

Abstract: A liquid crystal display device includes: a first polarizing plate, a first liquid crystal cell, a second polarizing plate, a third polarizing plate, a second liquid crystal cell, and a fourth polarizing plate, which are arranged from a front side to a back side in this order. P1, P2, P3, P4 represent degrees of polarization of the first polarizing plate, the second polarizing plate, the third polarizing plate, and the fourth polarizing plate, respectively, one of a relational expression of P1>P2, P3, P4, a relational expressions of P4>P1, P2, P3, and a relational expression of P1, P4>P2, P3 is satisfied.

公开(公告)号：US10437119B2

公开(公告)日：2019-10-08

申请号：US15928718

申请日：2018-03-22

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Ikuko Mori ,  Teruhisa Nakagawa ,  Kazuhiko Tsuda ,  Katsuji Tanaka

IPC: G02F1/133 ,  G02F1/1347 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1335 ,  G09G3/36

Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.

公开(公告)号：US10401693B2

公开(公告)日：2019-09-03

申请号：US15473111

申请日：2017-03-29

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Katsuhiro Kikuchi ,  Kazuhiko Tsuda ,  Takao Imaoku ,  Yoichi Yasui

IPC: G02F1/1335 ,  G02F1/1347

Abstract: A liquid crystal module which is disposed opposite a backlight includes: a first liquid crystal panel which includes a pair of first transparent substrates; a second liquid crystal panel which is disposed between the backlight and the first liquid crystal panel and includes a pair of second transparent substrates; and a diffuser sheet disposed therebetween. A first transparent substrate that is closer to the diffuser sheet among the pair of first transparent substrates is thinner than a second transparent substrate that is closer to the diffuser sheet among the pair of second transparent substrates.

公开(公告)号：US10288933B2

公开(公告)日：2019-05-14

申请号：US15476258

申请日：2017-03-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuhiko Tsuda ,  Katsuji Tanaka

IPC: G02F1/1335 ,  G02F1/1347

Abstract: A device capable of switching between an image display state and a mirror state is provided. The device includes an image display portion and a mirror portion. The image display portion emits image light for displaying a desired image and includes a display panel. The mirror portion is superposed on the image display portion and can switch between an image transmittance state for transmitting image light and a mirror state for reflecting outside light. The mirror portion includes a liquid crystal layer disposed between a first glass substrate and a second glass substrate and a reflective polarization layer adhered to the second glass substrate. A reflective enhancement layer separate from the reflective polarization layer is disposed between the display panel and the liquid crystal layer and has a refractive index that is different from the refractive index of the second glass substrate.