IP Library Granted Patent US 11,650,450
Granted Patent B2
US 11,650,450 · App. 17/747,116 · Granted May 16, 2023

Color display device

Inventors: Shoichi Hirota (Hitachi, JP); Shinichi Komura (Mobara, JP); Yoshifumi Sekiguchi (Hitachiota, JP); Tsunenori Yamamoto (Hitachi, JP); Masaya Adachi (Hitachi, JP)
Assignees: Japan Display Inc.; Panasonic Liquid Crystal Display Co., Ltd.
G02F1/133514G02F1/134309G02F1/136286G09G3/2003G09G3/3607G09G3/3648H01L27/3213H01L27/3218G09G3/2074G09G2300/0452G09G2300/0456G09G2320/0219G09G2320/0233G09G2320/0276
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Quick Facts
Patent No.
US 11,650,450
App. No.
17/747,116
Granted
May 16, 2023
Kind
B2
Abstract

A color display device comprises an array of a plurality of sub-pixels including a red sub-pixel, a blue sub-pixel, a first green sub-pixel and a second green sub-pixel. The first green sub-pixel and the second green sub-pixel are smaller than that of the red sub-pixel or the blue sub-pixel. The two adjacent first green sub-pixels are arranged in a first direction, the two adjacent second green sub-pixels are arranged in the first direction. The blue sub-pixel is directly adjacent to the red sub-pixel in a second direction; the blue sub-pixel is directly adjacent to the two first green sub-pixels and the two second green sub-pixels.

Claims (17)

1. A color display device comprising:

a pixel including a red subpixel, a blue subpixel and green subpixel formed on a substrate,

wherein

the green subpixel includes a first kind of green sub-pixel and a second kind of green sub-pixel,

the red sub-pixel and the blue sub-pixel are arranged in a longitudinal direction, the red sub-pixel has a first thin film transistor, the blue sub-pixel has a second thin film transistor,

the first transistor and the second transistor connect to a first signal line,

the first kind of green sub-pixel and the second kind of green sub-pixel are arranged in the longitudinal direction, the first kind of green sub-pixel has a third thin film transistor, and the second kind of green sub-pixel has a fourth thin film transistor,

the third thin film transistor and the fourth thin film transistor connect to a second signal line, and

the pixel has two first kind of green sub-pixels and two second kind of green sub-pixels.

2. The color display device according to claim 1 , wherein

the first kind of green sub-pixel and the second kind of green sub-pixel are smaller than the red sub-pixel or the blue sub-pixel.

3. The color display device according to claim 1 , wherein

color display device is organic LED.

4. The color display device according to claim 1 , wherein

the first kind of green sub-pixel is more blue-blended green than the second kind of green sub-pixel.

5. The color display device according to claim 1 , wherein

the second kind of green sub-pixel is more yellow-blended green than the first kind of green sub-pixel.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: JAPAN DISPLAY INC
To: MAGNOLIA PURPLE CORPORATION
Reel/Frame 071890/0202 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 9, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064532/0822 →
Priority Claims (1)
JP 2006-275967 · Oct 10, 2006 · national
Continuity (6)
Continuation 17159800 · Jan 27, 2021
Continuation 16727542 · Dec 26, 2019
Continuation 15454045 · Mar 9, 2017
Continuation 14518010 · Oct 20, 2014
Continuation 11869770 · Oct 10, 2007
Related Publication 20220276530A1 · Sep 1, 2022
Cited By (2)
US 12,360,420 US 12,687,751