IP Library › Granted Patent US 10,379,412
Granted Patent B2
US 10,379,412 · App. 15/707,711 · Granted Aug 13, 2019

Liquid crystal display device

Inventor: Kikuo Ono (Ibaraki, JP)
Assignee: Panasonic Liquid Crystal Display Co., Ltd.
G02F1/13471G02F1/133512G02F1/133528G02F1/133602G09G3/3406G09G3/3611G02F2001/133622G09G2300/023G09G2300/0439G09G2310/0235G09G2320/02G09G2320/0209
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Quick Facts
Patent No.
US 10,379,412
App. No.
15/707,711
Granted
Aug 13, 2019
Kind
B2
Abstract

A liquid crystal display device comprises: a first display panel and a second display panel, which are overlapping each other; and a backlight disposed on rear surface sides of the first display panel and the second display panel. The backlight irradiates the first display panel and the second display panel with light beams in a plurality of colors while sequentially switching the light beams. Each of the first display panel and the second display panel includes a plurality of pixels. An area of the pixel included in the first display panel is smaller than an area of the pixel included in the second display panel.

Claims (15)

1. A liquid crystal display device comprising:

a first display panel and a second display panel, which are overlapping each other;

a backlight disposed on rear surface sides of the first display panel and the second display panel, the backlight irradiating the first display panel and the second display panel with light beams in a plurality of colors while sequentially switching the light beams,

a front polarizing plate and a rear polarizing plate sandwiching therebetween the first display panel and the second display panel; and

at least one middle polarizing plate disposed between the first display panel and the second display panel, wherein

each of the first display panel and the second display panel includes a plurality of pixels that are each defined by two source lines adjacent to each other and two gate lines adjacent to each other in plan view, and

an area of the pixel included in the first display panel is smaller than an area of the pixel included in the second display panel.

2. The liquid crystal display device according to claim 1 , wherein the plurality of pixels of the first display panel include a first pixel and a second pixel, the plurality of pixels of the second display panel include a third pixel, and the first pixel and the second pixel overlap the third pixel in plan view.

3. The liquid crystal display device according to claim 2 , wherein

the second display panel is disposed closer to the observer than the first display panel is,

a black matrix is formed between the third pixel and a pixel adjacent to the third pixel in the second display panel, and

the black matrix is not formed between the first pixel and the second pixel in the first display panel.

4. The liquid crystal display device according to claim 1 , wherein a color filter layer is not formed in either the first display panel or the second display panel.

5. The liquid crystal display device according to claim 1 , wherein the number of the pixels disposed in the first display panel is larger than the number of the pixels disposed in the second display panel.

6. The liquid crystal display device according to claim 1 , wherein, in the second display panel, the plurality of pixels are disposed denser toward a center of an image display region, and the plurality of pixels are disposed coarser toward an end of the image display region.

Assignments (3)
NUNC PRO TUNC ASSIGNMENT Recorded Jul 12, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064258/0892 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 5, 2020
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PASONA KNOWLEDGE PARTNER INC.
Reel/Frame 052849/0777 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2017
From: ONO, KIKUO
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 044415/0523 →
Priority Claims (1)
JP 2016-183832 · Sep 21, 2016 · national
Continuity (1)
Related Publication 20180081229A1 · Mar 22, 2018