IP Library Granted Patent US 6,942,371
Granted Patent B2
US 6,942,371 · App. 10/412,327 · Granted Sep 13, 2005

Backlight module of the liquid crystal display with electromagnetic module

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Quick Facts
Patent No.
US 6,942,371
App. No.
10/412,327
Granted
Sep 13, 2005
Kind
B2
Abstract

This invention discloses a backlight module of a liquid crystal display with an electromagnetic-induction system. The backlight module of the present invention comprises: a lightguide sub-module, a first surface of the lightguide sub-module is coupled with the liquid crystal display; an electromagnetic-induction sub-system, the electromagnetic-induction sub-system is located on a second surface of the lightguide sub-module, the electromagnetic-induction sub-module further comprises an antenna sub-circuit and a control sub-module, wherein the antenna sub-circuit is located under the second surface of the lightguide sub-module, and the control sub-module is coupled with the antenna sub-circuit.

Claims (21)

1. A backlight module of the liquid crystal display, said backlight module of the liquid crystal display comprising:

a lightguide sub-module, a first surface of said lightguide sub-module is located under an invisible side of the liquid crystal display, said lightguide sub-module comprising:

an upper diffusion film located under said first surface of said lightguide sub-module; an enhancement brightness film located under said upper diffusion film;

a below diffusion film located under said enhancement brightness film;

a ligthguide film under said below diffusion film; and

a reflection film located under said lightguide film;

an electromagnetic-induction sub-module, said electromagnetic-induction sub-module is located under a second surface of said lightguide sub-module to combine in said backlight module.

2. The backlight module of the liquid crystal display according to claim 1 , wherein said electromagnetic-induction sub-module comprises a control sub-circuit.

3. A backlight module, wherein a display module and said backlight module are utilized in a liquid crystal display apparatus, said backlight module comprising

a lightguide sub-module, wherein a first surface of said lightguide sub-module is located under an invisible side of the liquid crystal display, said lightguide sub-module comprising:

an upper diffusion film located under said first surface of said lightguide sub-module;

an enhancement brightness film located under said upper diffusion film;

a below diffusion film located under said enhancement brightness film;

a lightguide film located under said below diffusion film; and

a reflection film located under said lightguide film;

an electromagnetic-induction sub-module located under a second surface of said lightguide sub-module to combine in said backlight module; and

a control sub-module, said control sub-module is individually coupled with said display module and said electromagnetic-induction sub-module to control the operation of said display module and said electromagnetic-induction sub-module.

4. The backlight module of the liquid crystal display according to claim 3 , wherein said electromagnetic-induction sub-module comprises an antenna sub-circuit, said antenna sub-circuit is coupled with said control sub-module.

5. A backlight module of the liquid crystal display, said backlight module of the liquid crystal display comprising:

a lightguide sub-module, a first surface of said lightguide sub-module is located under an invisible side of the liquid crystal display; and

an electromagnetic-induction sub-module comprising an antenna sub-circuit, said electromagnetic-induction sub-module is located under a second surface of said lightguide sub-module to combine in said backlight module.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2015
From: WALTOP INTERNATIONAL CORPORATION
To: WACOM CO., LTD.
Reel/Frame 035236/0409 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2006
From: AIPTEK INTERNATIONAL INC.
To: WALTOP INTERNATIONAL CORP.
Reel/Frame 017303/0939 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2003
From: CHEN, CHIH-AN
To: AIPTEK INTERNATIONAL INC.
Reel/Frame 013967/0043 →