公开(公告)号：US11367413B2

公开(公告)日：2022-06-21

申请号：US17115162

申请日：2020-12-08

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Masaki Tsubokura ,  Takao Imaoku ,  Takashi Kato

IPC: H04N1/60 ,  G09G5/10 ,  H04N5/57 ,  H04N9/64 ,  H04N9/69 ,  H04N9/73 ,  H04N9/77

Abstract: A display device for displaying image data includes: a gradation conversion circuit that converts a gradation of input image data; a display panel that displays the image data with the gradation converted by the gradation conversion circuit; an illuminance sensor that detects illuminance of an environment where the display device is placed; and a gamma characteristic corrector that controls a gradation conversion circuit so as to convert the gradation by use of a gamma characteristic corresponding to the detected illuminance.

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：US10359665B2

公开(公告)日：2019-07-23

申请号：US15940475

申请日：2018-03-29

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 ,  G02F1/1362 ,  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.