Electroluminescence light emitting sheet

• US 20040113541A1
• Filed: 07/23/2003
• Published: 06/17/2004
• Est. Priority Date: 08/30/2002
• Status: Active Grant

• Current Assignee: TOMY Company Limited
• Original Assignee: TOMY Company Limited
• Inventors: Watanabe, Kimitaka, Yamanaka, Hiroyuki
• Granted Patent: US 7,067,972 B2
• Time in Patent Office: Days
• US Class Current: 313/500
• CPC Class Codes: A63H 33/22 Optical, colour, or shadow toys puzzles with optical elements A63F9/0613; kaleidoscopes G02B27/08
• CPC Class Codes: G09G 3/30 using electroluminescent panels
• CPC Class Codes: H05B 33/26 characterised by the composition or arrangement of the conductive material used as an electrode

Abstract

An EL emitting sheet realizing various change of light emission. The EL emitting sheet includes: a light-emitting layer containing electroluminescence light-emitting elements therein; and an electrode section comprising a plurality of electrode pairs which are disposed with a predetermined arrangement, wherein each of the electrode pairs includes first and second electrodes which are electrically separated from each other with a spacing region and disposed in one surface side of the light-emitting layer with a predetermined arrangement.

Claims

1. An electroluminescence light emitting sheet comprising:

a light-emitting layer containing electroluminescence light-emitting elements therein; and

an electrode section comprising a plurality of electrode pairs which are disposed with a predetermined arrangement, wherein each of the electrode pairs includes first and second electrodes which are electrically separated from each other with a spacing region and disposed in one surface side of the light-emitting layer with a predetermined arrangement.

2. The electroluminescence light emitting sheet as claimed in claim 1, wherein each of the first and second electrodes is formed to have a comb-like pattern shape severally, and they are formed to be engaged with each other with a predetermined gap between their teeth with putting a spacing region between each tooth so that each tooth does not touch each other.

3. The electroluminescence light emitting sheet as claimed in claim 2, wherein the gap between the first and second electrodes which are next to each other is about 0.1-2.0 mm.

4. The electroluminescence light emitting sheet as claimed in claim 3, wherein each of widths of the first and second electrodes is about 0.1-5.0 mm.

5. The electroluminescence light emitting sheet as claimed in claim 1, wherein each of the first and second electrodes comprises a deposited aluminum layer.

6. The electroluminescence light emitting sheet as claimed in claim 5, wherein the deposited aluminum layer has a thickness of about 300-1,000 Å

.

7. The electroluminescence light emitting sheet as claimed in claim 6, wherein the deposited aluminum layer has a thickness of about 400-800 Å

.

8. The electroluminescence light emitting sheet as claimed in claim 2, wherein the first electrodes are allowed to receive an application of AC voltage individually and the second electrodes are connected with one another and grounded.

9. The electroluminescence light emitting sheet as claimed in claim 8, wherein when an electrically conductive material is placed on the light-emitting layer, the electrode section allows to form a closed circuit between the conductive material and an electrode pair receiving the application of AC voltage through the placed light-emitting layer.

10. The electroluminescence light emitting sheet as claimed in claim 9, wherein the gap between the first and second electrodes which are next to each other is about 0.1-2.0 mm, and each of the widths of the first and second electrodes is about 0.1-5.0 mm.

11. The electroluminescence light emitting sheet as claimed in claim 10, wherein the gap between the first and second electrodes which are next to each other is about 0.2-0.3 mm, and each of the widths of the first and second electrodes themselves is about 0.2-0.5 mm.