IP Library Granted Patent US 7,436,376
Granted Patent B2
US 7,436,376 · App. 11/042,054 · Granted Oct 14, 2008

Image display device

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Quick Facts
Patent No.
US 7,436,376
App. No.
11/042,054
Granted
Oct 14, 2008
Kind
B2
Abstract

The invention provides an image display device that has an especially satisfactory display quality for animated images, and sufficiently suppresses the irregularities of display quality among pixels. The image display device includes a light emitting drive means that drives a light emitting means, based on an analog display signal inputted to the pixels, and a light emitting control switch for controlling a light-on or light-off of the light emitting means on one end of the light emitting drive means in each pixel.

Claims (7)

1. An image display device comprising:

a display unit composed of plural pixels each having a light emitting means;

a signal line for inputting an analog display signal to the pixels;

a light emitting drive means for driving the light emitting means based on the analog display signal inputted to the pixels through the signal line;

a light emitting control switch means for controlling a light-on or a light-off of the light emitting means during image-displaying; and

an all-at-once light emitting control switch and drive means for driving the light emitting means of all of the pixels at once,

wherein the light emitting means in each pixel connected to one end of the light emitting drive means.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2018
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.; JAPAN DISPLAY INC.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 046988/0801 →
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE OF PATENTS AND PATENT APPLICATIONS Recorded Dec 12, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027362/0466 →
COMPANY SPLIT PLAN TRANSFERRING ONE HUNDRED (100) PERCENT SHARE OF PATENT AND PATENT APPLICATIONS Recorded Dec 12, 2011
From: HITACHI, LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 027362/0612 →
MERGER/CHANGE OF NAME Recorded Dec 12, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027363/0315 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2010
From: HITACHI, LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 025008/0380 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 26, 2005
From: AKIMOTO, HAJIME; MIKAMI, YOSHIROU; KINUGAWA, KIYOSHIGE; NISHITANI, SHIGEYUKI; SHIBA, TAKEO
To: HITACHI, LTD.
Reel/Frame 016223/0302 →