The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 19, 2026

Filed:

Jun. 10, 2024
Applicant:

Magnolia White Corporation, Tokyo, JP;

Inventor:

Takeo Koito, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 30/31 (2020.01); G02B 30/32 (2020.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
G02B 30/31 (2020.01); G02B 30/32 (2020.01); G02F 1/29 (2013.01);
Abstract

According to an aspect, a liquid crystal display device includes: a first panel configured to display an image; a backlight configured to irradiate the first panel with light; and a second panel configured to limit an emission area of the light. The second panel includes a plurality of first electrodes whose potentials are individually controllable and a second electrode provided at a position opposite to the first electrodes with liquid crystal between the first and second electrodes. The first electrodes are arranged in a first direction along the second panel. The first electrodes are provided with such a potential that liquid crystal in a first state and liquid crystal in a second state alternately occur in the first direction. The first state is a state of blocking light. The second state is a state of transmitting light and changing refractive index distribution of light incident from the backlight side.


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