# US 9,752,732 B2 · Transparent electronic display board and method for manufacturing same

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- Number: US 9,752,732 B2
- Document ID: US9752732B2
- Status: Granted
- Kind: B2
- Application number: 14/415,725
- Filed: 2012-11-27
- Published: 2015-06-25
- Granted: 2017-09-05
- Earliest claimed: 2012-07-18
- Assignees: G-Smatt Co., Ltd.
- Applicants: G-Smatt Co., Ltd.
- Inventors: Ho Jun Lee
- Web page: https://patentgrep.com/patent/US9752732B2

## CPC

- F21K 9/20: Light sources comprising attachment means
- B32B 37/02: characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
- B32B 37/16: with all layers existing as coherent layers before laminating
- F21K 9/90: Methods of manufacture
- G09F 9/33: being semiconductor devices, e.g. diodes
- H10H 20/833: Transparent materials
- B32B 2307/202: Conductive
- B32B 2307/412: Transparent
- B32B 2457/20: Displays, e.g. liquid crystal displays, plasma displays
- G02F 1/133603: {with LEDs}
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

The present invention relates to a transparent electronic display board and a method of manufacturing the same. More particularly, the transparent electronic display board uses front light-emitting elements and rear light-emitting elements and/or both-sided light-emitting elements, whereby the number of light-emitting elements that can be installed in the transparent electronic display board can be increased. Thereby, the quality of an image displayed on the transparent electronic display board can be markedly improved.

## Claims

### Claim 1

A method of manufacturing a transparent electronic display board, the method comprising:
preparing a first and second transparent plates facing each other;
forming a first transparent electrode made of conductive material on a surface of the first transparent plate, and forming a second transparent electrode made of conductive material on a surface of the second transparent plate;
forming one or more first adhesion holes in the first transparent electrode, the one or more first adhesion holes insulating partitioned portions of the first transparent electrode from each other;
forming one or more first light-emitting elements by charging a transparent non-conductive adhesive into the one or more first adhesion holes, positioning the one or more first light-emitting elements below the one or more first adhesion holes and electrically connecting the one or more first light-emitting elements to the first transparent electrode;
forming one or more second light-emitting elements by electrically connecting and mounting the one or more second light-emitting elements to the second transparent electrode; and
charging a transparent resin into a space where the one or more first light-emitting elements and the one or more second light-emitting elements are positioned, between the first transparent plate and the second transparent plate and adhering the first transparent plate to the second transparent plate.

### Claim 2 (depends on 1)

The method of claim 1, wherein the formation of the one or more first light-emitting elements comprises spacing the one or more first light-emitting elements apart from each other and electrically connecting and mounting the one or more first light-emitting elements to the first transparent electrode; and
the formation of the one or more second light-emitting elements comprises spacing the one or more second light-emitting elements apart from each other and mounting the one or more second light-emitting elements to the second transparent electrode above the first light-emitting elements such that the first and second light-emitting elements alternate with each other.

### Claim 3 (depends on 1)

The method of claim 1, wherein the formation of the one or more second light-emitting elements comprises:
forming one or more second adhesion holes in the second transparent electrode;
charging a transparent non-conductive adhesive into the one or more second adhesion holes;
positioning the one or more second light-emitting elements below the one or more second adhesion holes; and
electrically connecting and mounting the one or more second light-emitting elements to the second transparent electrode.

### Claim 4 (depends on 1)

The method of claim 1, wherein the one or more first light-emitting elements emits the light toward only the second transparent plate, and the one or more second light-emitting elements emit the light toward only the second transparent plate.

### Claim 5 (depends on 1)

The method of claim 1, wherein the one or more first light-emitting elements are electrically connected to the first transparent electrode and not to the second transparent electrode; and
the one or more second light-emitting elements are electrically connected to the second transparent electrode and not to the first transparent electrode.