Damping/muffling structure for electroluminescent cell

• US 6,459,211 B1
• Filed: 08/28/2001
• Issued: 10/01/2002
• Est. Priority Date: 08/28/2001
• Status: Expired due to Fees

• Current Assignee: Wintek Corporation
• Original Assignee: Wintek Corporation
• Inventors: Wang, Chih-Yuan
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): A, Minh D
• Application Number:
  US09/939,613
• Time in Patent Office: 399 Days
• Field of Search: 315/169.3, 315/224, 313/269, 313/463, 313/483, 313/491, 428/690, 428/917, 257/749
• US Class Current: 315/169.3
• CPC Class Codes: H05B 33/02 Details

Abstract

A damping/muffling structure for electroluminescent cell in which a damping layer is additionally disposed to provide a damping effect. When the light-emitting layer is driven by AC current to emit light, the light-emitting particles of the light-emitting layer are energized and vibrated. At this time, a friction is created between the damping molecules of the damping layer. The heat generated due to the friction can be dissipated so that the vibration of the light-emitting particles can be reduced or eliminated and a damping/muffling effect is achieved.

Claims

1. A damping/muffling structure for electroluminescent cell comprising a front electrode layer on which a light-emitting layer composed of a number of light-emitting particles is overlaid, an inductive layer being overlaid on the light-emitting layer, a back electrode layer being overlaid on the inductive layer, the back electrode layer being surrounded by an insulating packaging layer, a damping layer being integrally connected with the electroluminescent cell, the damping layer being composed of numerous damping molecules with high damping characteristic, whereby by means of AC current of the front electrode layer and the back electrode layer, the light-emitting layer is driven to emit light and at this time the light-emitting particles are energized and vibrated, a friction being created between the damping molecules of the damping layer, the heat generated due to the friction being dissipated.

2. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is positioned between the front electrode layer-and the light-emitting layer.

3. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is directly disposed in the light-emitting layer.

4. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is positioned between the light-emitting layer and the inductive layer.

5. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is directly disposed in the inductive layer.

6. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is directly disposed in the back electrode layer.

7. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is positioned between the back electrode layer and the insulating packaging layer.

8. The damping/muffling structure for electroluminescent cell as claimed in claim 1, wherein the damping layer is directly disposed in the insulating packaging layer.